CN111267302A - Ejection mechanism for automobile airbag cover - Google Patents
Ejection mechanism for automobile airbag cover Download PDFInfo
- Publication number
- CN111267302A CN111267302A CN202010084292.7A CN202010084292A CN111267302A CN 111267302 A CN111267302 A CN 111267302A CN 202010084292 A CN202010084292 A CN 202010084292A CN 111267302 A CN111267302 A CN 111267302A
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- Prior art keywords
- ejection mechanism
- block
- channel
- limiting
- sliding block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4084—Progressive ejection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C2045/445—Removing or ejecting moulded articles for undercut articles using the movable undercut forming element for ejection of the moulded article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3038—Air bag covers
Abstract
The invention discloses an ejection mechanism of an automobile airbag cover, which comprises an upper die, a lower die, a die foot and a bottom plate, the mould feet are positioned between the lower mould and the bottom plate, the lower mould is respectively provided with a slide block for forming a first back-off on the side surface of a product and a second back-off on the lower surface of the product, a mould core for forming the lower surface of the other part of the product, and an ejector pin plate, the ejector plate is positioned between the bottom plate and the lower die, the slide block comprises a first slide block and a second slide block, the first slide block is positioned on the second slide block, the inclined surface of the first slide block is matched on the second slide block, the second slide block is matched on the upper surface of the lower die in a sliding way, the first slide block is used for forming a first reverse buckle and a second reverse buckle, a first ejection mechanism is arranged between the bottom plate and the first slide block, the invention provides the automobile airbag cover ejection mechanism with high reliability and low rejection rate.
Description
Technical Field
The invention relates to the field of injection molds, in particular to an ejection mechanism for an automobile airbag cover.
Background
Automobile air bag lid is one of the important spare part of car, automobile air bag lid forms through injection mold, automobile air bag lid side is equipped with the back-off, utilize slider side shaping back-off, there are a lot of muscle position and back-off on automobile air bag lid bottom surface, if arrange ejection mechanism not, the product drawing of patterns is difficult, according to prior art, utilize oblique guide pillar and slider cooperation to realize loosing core of slider during the die sinking, the slider is loosed core to product side back-off, design conventional ejection mechanism and push out the dark muscle and the back-off of automobile air bag lid bottom surface, ejection mechanism can produce the interference with the slider when ejecting, the product is hindered to easy pulling, the reliability is low, the rejection rate is high.
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 automobile airbag cover ejection mechanism is high in reliability and low in rejection rate.
The technical scheme adopted by the invention is as follows: an automobile airbag cover ejection mechanism comprises an upper die, a lower die, a die leg and a bottom plate, wherein the die leg is positioned between the lower die and the bottom plate, the lower die is respectively provided with a slider for forming a first back-off on the side surface of a product and a second back-off on the lower surface of the product and a die core for forming the lower surface of the other part of the product, the automobile airbag cover ejection mechanism further comprises an ejector plate, the ejector plate is positioned between the bottom plate and the lower die and comprises a first slider and a second slider, the first slider is positioned on the second slider, the inclined surface of the first slider is matched on the second slider, the second slider is in sliding fit on the upper surface of the lower die, the first slider is used for forming the first back-off and the second back-off, a first ejection mechanism is arranged between the bottom plate and the first slider, a second ejection mechanism is arranged between the die core and the ejector plate, the first ejection mechanism and the second ejection mechanism eject a section of distance at the same time, and then the second ejection mechanism is independent, the first sliding block is separated from the second reverse buckle when the first ejection mechanism ejects.
After adopting the structure, compared with the prior art, the invention has the following advantages: the bottom surface of the product is provided with a partition board, one side of the partition board is provided with a first back-off, the second back-off and the first back-off are positioned at the same side of the partition board, the mold core is used for molding other parts at the other side of the product, the slide block is simultaneously used for molding the first back-off and the second back-off, the slide block is divided into a first slide block and a second slide block, the first slide block is used for molding the first back-off and the second back-off, the second slide block is used for sliding matching on the lower mold to drive the first slide block to be separated from the first back-off, the first push-out mechanism and the second push-out mechanism are used for simultaneously pushing out the product, the second push-out mechanism pushes out the product upwards, because the first slide block is matched with the inclined surface of the second slide block and the first slide block is not separated from the second back-off and the rib position, the first slide block is upwards sliding matched on the second slide block to be, and the product is completely ejected by the secondary ejection mechanism, so that the product is not damaged by pulling, the reliability is high, and the rejection rate is low.
Preferably, the first ejection mechanism comprises a limiting device and a first ejector rod, the limiting device is arranged on the bottom plate, the upper end of the first ejector rod upwards penetrates through the ejector plate and the lower die in sequence and is ejected on the lower surface of the first sliding block, the limiting device limits the lower end of the first ejector rod, the first ejector rod ejects a product for a certain distance to enable the first sliding block to be simultaneously separated from the first reverse buckle and the second reverse buckle, the limiting device limits the first ejector rod when the first sliding block is completely separated from the second reverse buckle, and the first ejector rod stops ejecting.
Preferably, the limiting device comprises a limiting block, a limiting screw and a spring, the lower end of the limiting block is fixed on the bottom plate, the lower surface of the ejector plate is provided with a clamping groove, the lower end of the first ejector rod is provided with a fixed block, the fixed block is positioned at the top of the clamping groove, the upper end of the limiting block is clamped in the clamping groove, the upper end of the limiting block abuts against the lower surface of the fixed block, a first channel, a second channel and a third channel are sequentially arranged in the limiting block from top to bottom, the first channel, the second channel and the third channel are sequentially communicated, the diameters of the first channel and the third channel are larger than the diameter of the second channel, the limiting screw is in sliding fit in the second channel, the lower end of the limiting screw is in sliding fit in the third channel, the upper end of the limiting screw passes through the first channel and is fixed on the fixed block, the spring is sleeved in the, simple structure utilizes spacing screw lower extreme sliding fit to carry on spacingly to the fixed block in third passageway to realize the spacing of first ejector pin, the thimble board drives fixed block and first ejector pin up-moving together when the thimble board up-moving, when the spacing screw lower extreme supports and leans on the terminal surface at third passageway top, the thimble board continues up-moving, and the fixed block stop motion, and the thimble board breaks away from with the fixed block, realizes that the thimble board is ejecting alone.
Preferably, the number of the limiting screws is two, the limiting screws are respectively positioned at the left end and the right end of the first ejector rod, the springs correspond to the limiting screws one to one, and the reliability is high.
Preferably, the fixing device further comprises a fixing screw, a channel is formed in the limiting block, the lower end of the fixing screw is located in the channel, the upper end of the fixing screw penetrates through the fixing block and is in threaded connection with the bottom surface of the first ejector rod, the lower end of the first ejector rod is fixed with the fixing block conveniently, and installation and disassembly are facilitated.
Preferably, the upper surface of the lower die is provided with a sliding groove, the second sliding block is in sliding fit in the sliding groove, the side surface of the lower die is provided with a first oil cylinder, a piston rod of the first oil cylinder extends into the sliding groove to be connected with the second sliding block, the first oil cylinder drives the second sliding block to be separated from the first reverse buckle or clamped in the first reverse buckle, and the second sliding block is convenient to drive the first sliding block to be completely separated from the first reverse buckle.
Preferably, the lower die is provided with a guide block, the side surface of the first sliding block is provided with a bulge protruding out of the side surface of the first sliding block, the bulge is in sliding fit with the guide block, the second sliding block drives the first sliding block to be separated from a product, the first sliding block and the second sliding block are guaranteed not to be separated, and the reliability is high.
Preferably, the secondary ejection mechanism comprises a second ejector rod, the lower end of the second ejector rod is fixed on the ejector plate, and the upper end of the ejector plate penetrates through the mold core and is ejected on the lower surface of the product, so that the structure is simple.
Preferably, the side surface of the lower die is provided with a second oil cylinder, the side surface of the ejector plate is provided with a base, and a piston rod of the second oil cylinder is connected with the base, so that the structure is simple.
Drawings
FIG. 1 is a perspective view of an automotive airbag cover ejection mechanism of the present invention;
FIG. 2 is a perspective view of the first and second liftout mechanisms of the automotive airbag cover liftout mechanism of the present invention;
FIG. 3 is a perspective view of the slider and the first cylinder of the automotive airbag cover ejection mechanism of the present invention;
FIG. 4 is a front cross-sectional view of a slider and a first cylinder of the automotive airbag cover ejection mechanism of the present invention;
FIG. 5 is a front cross-sectional view of the first and second liftout mechanisms of the automotive airbag cover liftout mechanism of the present invention;
FIG. 6 is an enlarged schematic view of A in FIG. 5;
fig. 7 is a perspective view of an automotive airbag cover ejection mechanism product of the present invention.
The die comprises an upper die 1, an upper die 2, a lower die 3, a die foot 4, a bottom plate 5, a product 6, a sliding block 7, a die core 8, a first reverse buckle 9, a second reverse buckle 10, a first sliding block 11, a second sliding block 12, an ejector plate 13, a first ejector rod 14, a limiting block 15, a limiting screw 16, a spring 17, a clamping groove 18, a fixing block 19, a first channel 20, a second channel 21, a third channel 22, a fixing screw 23, a channel 24, a sliding groove 25, a first oil cylinder 26, a guide block 27, a protrusion 28, a second ejector rod 29, a second oil cylinder 30 and a base.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in the figure, the invention provides an automobile airbag cover ejection mechanism, which comprises an upper die 1, a lower die 2, a die leg 3 and a bottom plate 4, wherein the die leg 3 is positioned between the lower die 2 and the bottom plate 4, the lower die 2 is respectively provided with a slide block 6 for forming a first back-off 8 on the side surface of a product 5 and a second back-off 9 on the lower surface of the product 5 and a die core 7 for forming the lower surface of the other part of the product 5, the automobile airbag cover ejection mechanism further comprises an ejector plate 12, the ejector plate 12 is positioned between the bottom plate 4 and the lower die 2, the slide block 6 comprises a first slide block 10 and a second slide block 11, the first slide block 10 is positioned on the second slide block 11, the inclined surface of the first slide block 10 is matched on the second slide block 11, the second slide block 11 is matched on the upper surface of the lower die 2 in a sliding manner, the first slide block 10 is used for forming the first back-off 8 and the second back-off 9, a first secondary mechanism, the invention has the advantages that a partition board is arranged on the bottom surface of a product 5, a first back-off 8 is arranged on one side of the partition board, the second back-off 9 and the first back-off 8 are positioned on the same side of the partition board, the mold core 7 is used for molding other parts on the other side of the product 5, the slide block 6 is simultaneously used for molding the first back-off 8 and the second back-off 9, the slide block 6 is divided into a first slide block 10 and a second slide block 11, the first slide block 10 is used for molding the first back-off 8 and the second back-off 9, the second slide block 11 is used for sliding matching on the lower mold 2 so as to drive the first slide block 10 to be separated from the first back-off 8, the first ejection mechanism and the second ejection mechanism are firstly used for ejecting simultaneously, the ejection mechanism is ejecting 5 up to the product for the second time, because first slider 10 and 11 inclined plane cooperations of second slider and first slider 10 can not separate with second slider 11, ejection mechanism is ejecting second back-off 9 to first slider 10 for the first time this moment, first slider 10 upwards sliding fit breaks away from first back-off 8 and second back-off 9 simultaneously on second slider 11, ejection mechanism is ejecting 5 complete to the product for the second time again, can not hinder product 5 like this, the reliability is high, the rejection rate is low, ejection mechanism is ejecting 20mm for the first time just makes first slider 10 break away from second back-off 9 and rib position completely, one section distance is 20 mm.
The first-time ejection mechanism comprises a limiting device and a first ejector rod 13, the limiting device is arranged on the bottom plate 4, the upper end of the first ejector rod 13 upwards sequentially penetrates through the ejector plate 12 and the lower die 2 to be ejected on the lower surface of the first slide block 10, the limiting device limits the lower end of the first ejector rod 13, the first ejector rod 13 ejects the product 5 for a certain distance to enable the first slide block 10 to be simultaneously separated from the first reverse buckle 8 and the second reverse buckle 9, the limiting device limits the first ejector rod 13 when the first slide block 10 is completely separated from the second reverse buckle 9, and the first ejector rod 13 stops ejecting.
The limiting device comprises a limiting block 14, a limiting screw 15 and a spring 16, the lower end of the limiting block 14 is fixed on the bottom plate 4, a clamping groove 17 is arranged on the lower surface of the ejector plate 12, a fixing block 18 is arranged at the lower end of the first ejector rod 13, the fixing block 18 is positioned at the top of the clamping groove 17, the upper end of the limiting block 14 is clamped in the clamping groove 17, the upper end of the limiting block 14 is abutted against the lower surface of the fixing block 18, a first channel 19, a second channel 20 and a third channel 21 are sequentially arranged in the limiting block 14 from top to bottom, the first channel 19, the second channel 20 and the third channel 21 are sequentially communicated, the diameters of the first channel 19 and the third channel 21 are larger than the diameter of the second channel 20, the limiting screw 15 is in sliding fit in the second channel 20, the lower end of the limiting screw 15 is in sliding fit in the third channel 21, and the upper end of the limiting screw 15 passes through the first channel 19 and, the spring 16 is sleeved in the limiting screw 15 and the spring 16 is located in the first channel 19, the structure is simple, the lower end of the limiting screw 15 is in sliding fit with the third channel 21 to limit the fixed block 18, so that the first ejector rod 13 is limited, the ejector plate 12 drives the fixed block 18 and the first ejector rod 13 to move upwards together when the ejector plate 12 moves upwards, when the lower end of the limiting screw 15 abuts against the end face of the top of the third channel 21, the ejector plate 12 continues to move upwards, the fixed block 18 stops moving, the ejector plate 12 is separated from the fixed block 18, and the ejector plate 12 is independently ejected.
The number of the limiting screws 15 is two, the limiting screws 15 are respectively located at the left end and the right end of the first ejector rod 13, the springs 16 correspond to the limiting screws 15 one by one, and the reliability is high.
It still includes fixed screw 22, stopper 14 on be equipped with passageway 23, fixed screw 22 lower extreme be located passageway 23, fixed screw 22 upper end run through fixed block 18 and the spiro union of first ejector pin 13 basal surface, be convenient for first ejector pin 13 lower extreme and fixed block 18 are fixed, be convenient for installation and dismantlement.
2 upper surfaces of lower mould be equipped with spout 24, second slider 11 sliding fit in spout 24, 2 sides of lower mould be equipped with first hydro-cylinder 25, the piston rod of first hydro-cylinder 25 stretch and be connected with second slider 11 in spout 24, first hydro-cylinder 25 drive second slider 11 break away from first back-off 8 or block in first back-off 8, be convenient for second slider 11 drive first slider 10 break away from first back-off 8 completely, second slider 11 makes horizontal motion in spout 24.
The lower die 2 is provided with a guide block 26, the side surface of the first sliding block 10 is provided with a bulge 27 protruding out of the side surface of the first sliding block 10, the bulge 27 is in sliding fit with the guide block 26, the second sliding block 11 drives the first sliding block 10 to be separated from the product 5, the first sliding block 10 and the second sliding block 11 are guaranteed not to be separated, and reliability is high.
The secondary ejection mechanism comprises a second ejector rod 28, the lower end of the second ejector rod 28 is fixed on the ejector plate 12, the upper end of the ejector plate 12 penetrates through the mold core 7 to be ejected on the lower surface of the product 5, and the structure is simple.
The side of the lower die 2 is provided with a second oil cylinder 29, the side of the ejector plate 12 is provided with a base 30, and a piston rod of the second oil cylinder 29 is connected with the base 30, so that the structure is simple.
Specifically, the principle of the invention is that a partition board is arranged on the bottom surface of a product 5, a first reverse buckle 8 is arranged on one side of the partition board, a second reverse buckle 9 and the first reverse buckle 8 are positioned on the same side of the partition board, a mold core 7 is used for molding other parts on the other side of the product 5, a slide block 6 is simultaneously used for molding the first reverse buckle 8 and the second reverse buckle 9, the slide block 6 is divided into a first slide block 10 and a second slide block 11, the first slide block 10 is used for molding the first reverse buckle 8 and the second reverse buckle 9, the second slide block 11 is used for sliding matching on a lower mold 2 so as to drive the first slide block 10 to be separated from the first reverse buckle 8, the first push-out mechanism and the second push-out mechanism are used for simultaneously pushing out the product 5, the second push-out mechanism pushes out the product 5 upwards, and because the first slide block 10 is matched with the inclined surface of the second slide block 11 and the first slide block 10 is not separated from the second slide block 11, first slider 10 up sliding fit breaks away from first back-off 8 and second back-off 9 simultaneously on second slider 11, and secondary ejection mechanism is ejecting product 5 completely again, can not pull product 5 like this, and the reliability is high, and the rejection rate is low, has a mould foot 3 not drawn in figure 1, and first slider 10 upper surface has the die cavity face that is used for shaping second back-off 9 and rib position.
The action process is as follows: after the mold is opened, a second oil cylinder 29 is driven, the second oil cylinder 29 drives an ejector plate 12 to eject upwards, the fixed block 18 is clamped in a clamping groove 17 of the lower mold 2, the ejector plate 12 drives a first ejector rod 13 and a second ejector rod 28 to simultaneously eject upwards, the second ejector rod 28 ejects a product 5, the first ejector rod 13 moves a first slide block 10 upwards, the first slide block 10 is in sliding fit with a second slide block 11 and is simultaneously separated from a second back-off 9 and a first back-off 8, and the lower end of a limiting screw 15 is in sliding fit with a third channel 21 upwards; secondly, when the first sliding block 10 is completely separated from the second reverse buckle 9, the lower end of the limiting screw 15 abuts against the end face of the top of the third channel 21; thirdly, the second oil cylinder 29 is continuously driven, the limiting screw 15 stops moving upwards, meanwhile, the limiting screw 15 pulls the fixing block 18, the fixing block 18 pulls the first ejector rod 13 to limit the first ejector rod 13, the first ejector rod 13 stops ejecting, the ejector plate 12 continues moving upwards, and the second ejector rod 28 continues ejecting the product 5; and fourthly, driving the first oil cylinder 25, wherein the first oil cylinder 25 drives the second sliding block 11 to move towards the direction far away from the product 5, and the second sliding block 11 drives the first sliding block 10 to be completely separated from the first reverse buckle 9.
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 (9)
1. The utility model provides an automobile air bag lid ejection mechanism, includes mould (1), lower mould (2), mould foot (3) and bottom plate (4), mould foot (3) be located between lower mould (2) and bottom plate (4), lower mould (2) be equipped with slider (6) that are used for first back-off (8) in shaping product (5) side and product (5) lower surface second back-off (9) respectively and be used for mould core (7) of shaping product (5) another part lower surface, its characterized in that: it also comprises an ejector plate (12), the ejector plate (12) is positioned between the bottom plate (4) and the lower die (2), the sliding block (6) comprises a first sliding block (10) and a second sliding block (11), the first sliding block (10) is positioned on the second sliding block (11), the inclined surface of the first sliding block (10) is matched on the second sliding block (11), the second sliding block (11) is in sliding fit with the upper surface of the lower die (2), the first sliding block (10) is used for forming a first reverse buckle (8) and a second reverse buckle (9), a first ejection mechanism is arranged between the bottom plate (4) and the first sliding block (10), a secondary ejection mechanism is arranged between the mold core (7) and the ejector plate (12), the first ejection mechanism and the second ejection mechanism are ejected out for a distance at the same time and then are ejected out separately by the second ejection mechanism, the first sliding block (10) is separated from the second reverse buckle (9) when the first ejection mechanism is ejected.
2. The automotive airbag cover ejection mechanism of claim 1, characterized in that: the primary ejection mechanism comprises a limiting device and a first ejector rod (13), the limiting device is arranged on the bottom plate (4), the upper end of the first ejector rod (13) upwards penetrates through the ejector plate (12) and the lower die (2) in sequence to be ejected on the lower surface of the first sliding block (10), and the limiting device limits the lower end of the first ejector rod (13).
3. The automotive airbag cover ejection mechanism of claim 2, characterized in that: the limiting device comprises a limiting block (14), a limiting screw (15) and a spring (16), the lower end of the limiting block (14) is fixed on the bottom plate (4), a clamping groove (17) is formed in the lower surface of the ejector plate (12), a fixing block (18) is arranged at the lower end of the first ejector rod (13), the fixing block (18) is located at the top of the clamping groove (17), the upper end of the limiting block (14) is clamped in the clamping groove (17), the upper end of the limiting block (14) is abutted against the lower surface of the fixing block (18), a first channel (19), a second channel (20) and a third channel (21) are sequentially arranged in the limiting block (14) from top to bottom, the first channel (19), the second channel (20) and the third channel (21) are sequentially communicated, and the diameters of the first channel (19) and the third channel (21) are larger than the diameter of the second channel (20), the limiting screw (15) is in sliding fit in the second channel (20), the lower end of the limiting screw (15) is in sliding fit in the third channel (21), the upper end of the limiting screw (15) penetrates through the first channel (19) and is fixed on the fixing block (18), the spring (16) is sleeved in the limiting screw (15), and the spring (16) is located in the first channel (19).
4. The automotive airbag cover ejection mechanism of claim 3, wherein: the number of the limiting screws (15) is two, the limiting screws (15) are respectively positioned at the left end and the right end of the first ejector rod (13), and the springs (16) are in one-to-one correspondence with the limiting screws (15).
5. The automotive airbag cover ejection mechanism according to claim 3 or 4, characterized in that: the device is characterized by further comprising a fixing screw (22), a channel (23) is formed in the limiting block (14), the lower end of the fixing screw (22) is located in the channel (23), and the upper end of the fixing screw (22) penetrates through the fixing block (18) and is in threaded connection with the bottom surface of the first ejector rod (13).
6. The automotive airbag cover ejection mechanism of claim 1, characterized in that: lower mould (2) upper surface be equipped with spout (24), second slider (11) sliding fit in spout (24), lower mould (2) side be equipped with first hydro-cylinder (25), the piston rod of first hydro-cylinder (25) stretch and be connected with second slider (11) in spout (24), first hydro-cylinder (25) drive second slider (11) break away from first back-off (8) or block in first back-off (8).
7. The automotive airbag cover ejection mechanism of claim 6, wherein: the lower die (2) is provided with a guide block (26), the side surface of the first sliding block (10) is provided with a bulge (27) protruding out of the side surface of the first sliding block (10), the bulge (27) is in sliding fit with the guide block (26), and the second sliding block (11) drives the first sliding block (10) to be separated from a product (5) together.
8. The automotive airbag cover ejection mechanism of claim 1, characterized in that: the secondary ejection mechanism comprises a second ejector rod (28), the lower end of the second ejector rod (28) is fixed on the ejector plate (12), and the upper end of the ejector plate (12) penetrates through the mold core (7) to be ejected on the lower surface of the product (5).
9. The automotive airbag cover ejection mechanism of claim 1, characterized in that: the side of the lower die (2) is provided with a second oil cylinder (29), the side of the ejector plate (12) is provided with a base (30), and a piston rod of the second oil cylinder (29) is connected with the base (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084292.7A CN111267302A (en) | 2020-02-10 | 2020-02-10 | Ejection mechanism for automobile airbag cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084292.7A CN111267302A (en) | 2020-02-10 | 2020-02-10 | Ejection mechanism for automobile airbag cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111267302A true CN111267302A (en) | 2020-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084292.7A Pending CN111267302A (en) | 2020-02-10 | 2020-02-10 | Ejection mechanism for automobile airbag cover |
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| CN112265230A (en) * | 2020-09-30 | 2021-01-26 | 宁波方正汽车模具股份有限公司 | Direct-ejection internal core-pulling secondary ejection mechanism for automobile tail door fairing product |
| CN112848130A (en) * | 2020-12-31 | 2021-05-28 | 宁波方正汽车部件有限公司 | Four-time ejection mechanism for safety airbag |
| CN114311550A (en) * | 2022-01-06 | 2022-04-12 | 宁波方正汽车模具股份有限公司 | Combined sliding block core-pulling mechanism |
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| CN114311550A (en) * | 2022-01-06 | 2022-04-12 | 宁波方正汽车模具股份有限公司 | Combined sliding block core-pulling mechanism |
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