CN113954320B - Automobile instrument board framework and airbag frame integrated product and injection mold - Google Patents
Automobile instrument board framework and airbag frame integrated product and injection mold Download PDFInfo
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- CN113954320B CN113954320B CN202111287060.2A CN202111287060A CN113954320B CN 113954320 B CN113954320 B CN 113954320B CN 202111287060 A CN202111287060 A CN 202111287060A CN 113954320 B CN113954320 B CN 113954320B
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- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 6
- 241000375392 Tana Species 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000001746 injection moulding Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an integrally formed injection mold for an automobile instrument board framework and an air bag frame, which belongs to the technical field of automobile injection products and molds and comprises a front mold, a front back plate, a back mold, a back plate and an inclined ejection mechanism, wherein the front mold is arranged on the front back plate, the back mold and the inclined ejection mechanism are arranged on the back plate, the inclined ejection mechanism comprises a bottom plate, square iron, a core plate, an ejector plate, an inclined ejection head, a straight guide sleeve, a T-shaped guide rail, a vertical ejection rod, a universal head, a side sliding plate, a guide sliding seat, a guide sliding plate, a pressing plate, an inclined guide pillar fixing block, a deflector rod, an inclined guide sleeve, a reciprocating mechanism, a straight ejection rod and a straight ejection head.
Description
Technical Field
The invention relates to the technical field of automobile injection products and molds, in particular to an automobile instrument board framework and airbag frame integrated molding product and an injection production mold.
Background
In the production of automobile injection products, for the assembly mode of an instrument board and an air bag, the current common adopted design is that an instrument board framework and an air bag frame are separated, the instrument board framework is firmly buckled through a buckling structure on the air bag frame, and then the whole instrument board assembly is completed through a foaming process and then assembled on an automobile. The instrument board framework and the safety airbag frame are not firmly clamped, and foaming materials can be extruded into an airbag area, so that the instrument board finished product is poor, and even potential safety hazards exist.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an integrally molded product of an automobile instrument panel frame and an airbag frame and an injection molding production mold, by which an integrally molded injection molded product of an automobile instrument panel frame and an airbag frame is produced, which solve the problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the injection mold for the integrally formed product of the automobile instrument board framework and the air bag frame comprises a front mold, a front back plate, a back mold, a back plate and an inclined ejection mechanism, wherein the front mold is arranged on the front back plate, the back mold and the inclined ejection mechanism are arranged on the back plate, and the injection mold is characterized in that the inclined ejection mechanism comprises a bottom plate, square iron, a core plate, an ejector plate, an inclined ejection head, a straight guide sleeve, a T-shaped guide rail, a vertical ejection rod, a universal head, a side sliding plate, a guide sliding seat, a guide sliding plate, a pressing plate, an inclined guide post fixing block, a deflector rod, an inclined guide sleeve, a reciprocating mechanism, a straight ejection rod and a straight ejection head, the bottom plate, the square iron and the core plate are fixedly connected to form a mounting frame, the bottom plate is fixed on the back plate, the straight guide sleeve and the inclined guide sleeve are fixed on the mounting frame core plate, the core plate is also provided with a vertical guide hole and a straight guide hole, the inclined guide post fixing block is fixed on the mounting frame bottom plate, one end of the inclined guide post is fixedly arranged on the inclined guide post fixing block, the other end of the inclined guide post is fixedly arranged on the mounting frame type core plate, the guide slide plate, the pressing plate and the thimble plate are fixedly connected to form a slide frame and form a guide chute of the slide frame, the guide slide seat is provided with an inclined hole and movably sleeved on the inclined guide post and is arranged in the guide chute of the slide frame and is in sliding connection with the guide chute, the guide slide plate is provided with a straight hole, the guide slide seat is provided with a chute, the vertical ejector rod passes through the straight guide sleeve and the guide slide plate straight hole, one end of the vertical ejector rod is positioned in the guide chute and is connected with the universal head in a mounting manner, the sideslip plate is fixed on the outer side of the universal head through a rotation stop pin and is arranged on the chute of the guide slide seat in a sliding manner, the other end of the vertical ejector rod passes through a vertical guide hole arranged on the core plate and is fixedly connected with a T-shaped guide rail, the bottom of the inclined ejector head is provided with a T-shaped guide groove, the T-shaped guide rail is inserted into the T-shaped guide groove and is in sliding connection with the T-shaped guide groove, the driving lever passes through the inclined guide sleeve and is in sliding connection with the inclined guide sleeve, one end of the driving lever is fixedly connected with the inclined ejector head, one end of the straight ejector rod is connected with the ejector plate in a mounting way, the other end of the straight ejector rod passes through the straight guide hole formed in the core plate and is fixedly provided with the straight ejector head, and the outer side of the mounting frame is provided with the reciprocating mechanism which is connected with the ejector plate in a mounting way.
Preferably, the included angle between the downhill angle and the oblique guide post and the vertical direction, the included angle between the side sliding plate and the horizontal direction, the included angle between the deflector rod and the vertical direction and the included angle between the T-shaped guide rail and the horizontal direction meet the following relation:
wherein: alpha is a downhill angle, A is an included angle between the oblique guide post and the vertical direction, B is an included angle between the side sliding plate and the horizontal direction, C is an included angle between the deflector rod and the vertical direction, and D is an included angle between the T-shaped guide rail and the horizontal direction.
Preferably, the horizontal relative movement length of the beveled roof satisfies the following relationship:
wherein: s1 is the horizontal relative movement length of the inclined top head, H is the preset ejection height of the guide slide plate, A is the included angle between the inclined guide post and the vertical direction, B is the included angle between the side slide plate and the horizontal direction, C is the included angle between the deflector rod and the vertical direction, and D is the included angle between the T-shaped guide rail and the horizontal direction.
Preferably, the vertical relative drop height of the angled head satisfies the following relationship:
H1＝S1·tanα
wherein: h1 is the vertical relative falling height of the inclined top head, and S1 is the horizontal relative moving length of the inclined top head.
Preferably, the included angle between the inclined guide post and the vertical direction is less than or equal to 30 degrees, the included angle between the side sliding plate and the horizontal direction is less than or equal to 30 degrees, the included angle between the deflector rod and the vertical direction is less than or equal to 20 degrees, and the included angle between the T-shaped guide rail and the horizontal direction is less than or equal to 30 degrees.
Preferably, the ramp angle is in the range of 20 ° -80 °.
Preferably, the vertical relative falling height of the inclined top head is in the range of 20mm-90mm, and the horizontal relative moving length of the inclined top head is in the range of 20mm-80 mm.
The automobile instrument board framework and the airbag frame integrated product comprises an automobile instrument board framework and an airbag frame, wherein the automobile instrument board framework and the airbag frame are integrally connected; the injection molding production mold comprises a front mold, a front back plate, a back mold, a back plate and an inclined ejection mechanism, wherein the front mold is arranged on the front back plate, the back mold and the inclined ejection mechanism are arranged on the back plate, and the injection molding production mold is characterized in that the inclined ejection mechanism comprises a bottom plate, square irons, a core plate, an ejector pin plate, an inclined ejection head, a straight guide sleeve, a T-shaped guide rail, a vertical ejection rod, a universal head, a side sliding plate, a guide slide seat, a guide slide plate, a pressing plate, an inclined guide pillar fixing block, a deflector rod, an inclined guide sleeve, a reciprocating mechanism, a straight ejection rod and a straight ejection head, the bottom plate, the square irons and the core plate are fixedly connected to form a mounting frame, the bottom plate is fixed on the back plate, the straight guide sleeve and the inclined guide sleeve are fixed on the mounting frame core plate, the core plate is also provided with a vertical guide hole and a straight guide hole, the inclined guide pillar fixing block is fixed on the mounting frame bottom plate, one end of the inclined guide pillar is fixedly arranged on the inclined guide pillar fixing block, the other end of the guide slide plate is fixed on the mounting frame type core plate, the guide slide plate, the pressing plate and the thimble plate are fixedly connected to form a slide frame and form a guide chute of the slide frame, the guide slide seat is provided with an inclined hole, is movably sleeved on the inclined guide post and is arranged in the guide chute of the slide frame and is in sliding connection with the inclined guide post, the guide slide plate is provided with a straight hole, the guide slide seat is provided with a chute, the vertical ejector rod passes through the straight guide sleeve and the guide slide plate straight hole, one end of the vertical ejector rod positioned in the guide chute is connected with the universal head in a mounting manner, the side slide plate is fixed on the outer side of the universal head through a rotation stopping pin and is arranged on the chute of the guide slide seat in sliding connection with the chute, the other end of the vertical ejector rod passes through a vertical guide hole arranged on the mould core plate, a T-shaped guide rail is fixedly connected with the bottom of the inclined ejector rod, the T-shaped guide rail is inserted into the T-shaped guide groove and is in sliding connection with the T-shaped guide groove, the deflector rod passes through the inclined guide sleeve, the two sliding connection, driving lever one end and oblique top fixed connection, straight ejector pin one end and thimble board installation connection, the other end passes the straight guide hole that the core plate was established, is fixed with straight top, reciprocating mechanism is installed in the mounting bracket outside, with thimble board installation connection.
The invention designs a mould, adds a T-shaped guide rail on the basis of an inclined ejection structure, converts the inclined ejection rod into a structure of a vertical ejection rod and a deflector rod, and through mechanical analysis and calculation, the structure can be completely suitable for a product structure with the back-off quantity of 30mm-90mm and the downhill angle of 20-80 degrees, solves the problem of difficult demoulding of the product, realizes the integral forming of an automobile instrument panel framework and an air bag frame, saves the production cost, improves the production efficiency and the product qualification rate, and has scientific and reasonable design, simplified mould structure, safe use, reliable function and stable product quality.
The invention is further described below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic view of an integrally formed product of an automobile instrument panel skeleton and an airbag frame of the present invention;
FIG. 2 is a schematic view in the direction A-A of FIG. 1;
FIG. 3 is a schematic perspective view of an injection mold according to the present invention;
FIG. 4 is an exploded view of FIG. 1;
FIG. 5 is a schematic cross-sectional view of a mold according to the present invention;
FIG. 6 is a schematic view of an injection mold of the present invention;
FIG. 7 is an analytical schematic of an injection mold according to the present invention;
in the above figures: the device comprises a 1-ejector pin plate, a 2-inclined ejector pin, a 3-straight guide sleeve, a 4-T-shaped guide rail, a 5-vertical ejector pin, a 6-chute, a 7-universal head, an 8-side sliding plate, a 9-stop pin, a 10-guide sliding seat, an 11-guide sliding plate, a 12-pressing plate, a 13-inclined guide pillar, a 14-inclined guide pillar fixing block, a 15-deflector rod, a 16-inclined guide sleeve, a 17-bottom plate, an 18-square iron, a 19-core plate, a 20-reciprocating mechanism, a 21-straight ejector pin, a 22-straight ejector pin, an A-inclined guide pillar and a vertical angle, a B-side sliding plate and a horizontal angle, a C-deflector rod and a vertical angle, a D-T-shaped guide rail and a horizontal angle, a preset ejection height of the H-guide sliding plate, a vertical relative falling height of the H1-inclined ejector pin, a relative horizontal moving length of the L-inclined ejector pin along the T-shaped guide rail, a P-product, a Y-framework, a Q-airbag frame, a horizontal relative moving length of the S1-inclined ejector pin, and a slope angle.
Detailed Description
Example 1
The invention relates to an integrated product P of an automobile instrument board framework and an air bag frame, which comprises an instrument board framework Y frame and an air bag frame Q, wherein the instrument board framework Y frame and the air bag frame Q are integrated by an integrated injection molding production die and an integrated injection molding die.
The invention relates to an integrally formed injection molding production mold for an automobile instrument board framework and an air bag frame, which has the difficulty in solving the problem that an included angle alpha of a slope angle of 30-70 degrees exists between the air bag frame and the instrument board framework in the mold stripping direction of mold forming for producing products in the integral form of the instrument board framework and the air bag frame. Since the instrument panel skeleton is a main component of the product, the mold-releasing direction of the instrument panel skeleton is selected as the mold-releasing direction of the front and rear molds of the mold when the mold is developed. In this case, the airbag frame region is inverted on the mold, the amount of inverted buckle is large, and the angle of the downward slope is large (the angle of downward slope a is the angle between the instrument panel frame and the airbag frame in the demolding direction).
The air bag frame has small back-off quantity at two sides, and can be demolded by adopting a common inclined roof structure in the prior art.
Since the entire airbag area is almost entirely formed on the pitched roof, in order to prevent sticking of the pitched roof, a roof block for sticking prevention of the pitched roof must be designed. The product is ensured not to displace along the core pulling direction of the oblique ejection in the ejection process.
The central area of the air bag has the largest back-off amount, generally between 50mm and 70mm, and the slope angle alpha is between 30 and 70 degrees, so that the common inclined roof structure cannot be satisfied at all, and the instrument panel framework and the air bag frame structure selected by almost all vehicle types are split main reasons. It is limited by the inability of the mold mechanism to achieve integral molding.
In order to solve the problems, the design of the die is to add a T-shaped guide rail on the basis of a cross rod inclined top structure, convert the inclined top rod into a straight top rod and deflector rod structure, and the structure can be completely suitable for a product structure with the back-off amount of 50mm-70mm and the downhill angle of 30-70 degrees through mechanical analysis and calculation. The mold disclosed by the invention can be used for producing an integrally formed product of the automobile instrument board framework and the air bag frame through injection molding, wherein the product comprises the automobile instrument board framework and the air bag frame, and the automobile instrument board framework is integrally connected with the air bag frame member.
Referring to fig. 3, 4 and 5, the injection production mold of the present invention comprises a front mold, a front back plate, a rear mold, a back plate and an inclined ejection mechanism, wherein the front mold is mounted on the front back plate, the rear mold and the inclined ejection mechanism are mounted on the back plate, and the inclined ejection mechanism comprises a bottom plate 17, a square iron 18, a core plate 19, a thimble plate 1, an inclined ejection head 2, a straight guide sleeve 3, a T-shaped guide rail 4, a vertical ejection rod 5, a universal head 7, a side sliding plate 8, a guide sliding seat 10, a guide sliding plate 11, a pressing plate 12, an inclined guide pillar 13, an inclined guide pillar fixing block 14, a deflector 15, an inclined guide sleeve 16, an oil cylinder 20, a straight ejection rod 21 and a straight ejection head 22. The bottom plate 17, the square iron 18 and the core plate 19 are fixedly connected to form an installation frame of the bottom plate 17 below, the square iron 18 on the side and the core plate 19 above, the bottom plate 17 is fixed on a rear back plate, the straight guide sleeve 3 and the inclined guide sleeve 16 are fixed on the installation frame core plate 19, the core plate 19 is also provided with a straight guide hole and a vertical guide hole, and the straight guide hole and the vertical guide hole are through holes. The inclined guide pillar fixing block 14 is fixed on the mounting frame bottom plate 17. One end of the inclined guide pillar 13 is fixedly arranged on the inclined guide pillar fixing block 14, and the other end of the inclined guide pillar is fixedly arranged on the mounting frame type core plate 19. The guide slide plate 11 and the pressing plate 12 are fixedly connected with the ejector plate 1 to form a slide frame with the guide slide plate 11 at the upper part, the pressing plate 12 at the side and the ejector plate 1 at the lower part, and form a guide chute of the slide frame, and the guide slide seat 10 is provided with an inclined hole (through hole), is movably sleeved on the inclined guide post 13, is arranged in the guide chute of the slide frame, and is in sliding connection with the inclined guide post 13. The guide slide 11 is provided with a straight hole (through hole), the guide slide 10 is provided with a chute 6, the vertical ejector rod 5 passes through the straight guide sleeve 3 and the guide slide 11 straight hole, one end in the guide chute is in installation connection with the universal head 7, the side slide 8 is fixed on the outer side of the universal head 7 through a stop pin 9 and is arranged on the chute 6 of the guide slide 10 to be in sliding connection with the same, the other end of the vertical ejector rod 5 passes through a vertical guide hole formed in the core plate and is fixedly connected with the T-shaped guide rail 4, the bottom of the inclined ejector head 2 is provided with a T-shaped guide groove corresponding to the T-shaped guide rail 4, and the T-shaped guide rail 4 is inserted into the T-shaped guide groove of the inclined ejector head 2 to be in sliding connection with the T-shaped guide groove. The deflector rod 15 penetrates through the inclined guide sleeve 16 and is in sliding connection with the inclined guide sleeve, and one end of the deflector rod 15 is fixedly connected with the inclined top head 2. One end of the straight ejector rod 21 is connected with the ejector plate 1 in a mounting way, and the other end of the straight ejector rod passes through a straight guide hole formed in the core plate 19 and is fixed with a straight ejector head 22. The reciprocating mechanism 20 is arranged on the outer side of the mounting frame, the reciprocating mechanism 20 of the embodiment adopts an oil cylinder, and the oil cylinder (piston) is connected with the thimble plate 1 in a mounting way.
When the product P is injection-molded, a front mold, a rear mold, a plug 22 and an inclined plug 2 form a complete product cavity, and the injection molding machine is used for injection molding production. When the injection molding machine opens the mold, the back mold is opened first, then, the oil cylinder 20 pulls the ejector plate 1, on one hand, the ejector plate 1 drives the straight ejector rod 21 and the straight ejector head 22 to push the product linearly, on the other hand, the ejector plate 1 drives the sliding frame to move upwards, the sliding guide seat 10 arranged in the sliding frame moves upwards together, and the straight ejector rod 21 is pushed to move upwards through the side sliding plate 8 and the universal head 7 arranged in the chute 6 of the sliding guide seat 10, and the inclined ejector head 2 is slidably connected through the T-shaped guide rail 4 to push the inclined ejector head 2 to move upwards, and the T-shaped guide groove of the inclined ejector head 2 and the T-shaped guide rail 4 are relatively slid due to the constraint of the deflector rod 15 connected with the inclined ejector head 2 by the inclined guide sleeve 16. Meanwhile, the slide guiding seat 10 is restrained by the inclined guide post 13 and slides relatively with the sliding frame, so that the side sliding plate 8 which is in sliding connection with the inclined groove 6 of the slide guiding seat 10 slides relatively downwards along the inclined groove 6, and the upward moving distance of the vertical ejector rod 5 is smaller than the upward moving distance of the sliding frame. Because the T-shaped guide groove and the T-shaped guide rail 4 of the inclined ejector head 2 generate relative sliding, and the guide sliding seat 10 and the sliding frame generate relative sliding comprehensive effects, the upward moving distance of the vertical ejector rod 5 is smaller than that of the sliding frame ejector plate 1, when the sliding frame ejector plate 1 ejects a product linearly through the straight ejector rod 21 and the straight ejector rod 22, the inclined ejector head 2 driven by the upward moving of the ejector plate 1 moves obliquely downwards relative to the product P, so that the inclined ejector head 2 can be separated from the back-off of the product P.
Example 2
This example is substantially similar to example 1, except that the mathematical model and application analysis established by the die mechanism of the present invention is presented.
Referring to fig. 6 and 7, the reciprocating mechanism 20 pulls the ejector plate 1 and the slide guide plate 11 to move upwards, so that the horizontal movement limit length S of the slide guide plate is obtained by decomposition, and the preset ejection height H of the slide guide plate, namely the ejection height of the product P, is restrained by the inclined guide post in the mechanism due to the included angle a between the inclined guide post and the vertical direction, the included angle B between the slide guide plate and the horizontal direction, the included angle C between the deflector rod and the vertical direction and the included angle D between the T-shaped guide rail and the horizontal direction, so that the inclined top head 2 presses the inclined angle a to move linearly relative to the product P. To simplify the analysis, the product P is set as a reference (considered stationary) and the movement of the beveled top 2 relative to the product P is analyzed. According to the movement of the inclined top 2 along the T-shaped guide rail relative to the product P, the length of the inclined top along the T-shaped guide rail relative to the product P is L, and the inverted quantity of the product can be considered as comparison, so that the vertical relative falling height H1 of the inclined top is obtained by decomposition, and the horizontal relative movement length S1 of the inclined top is opposite to the product P. In order to meet the requirement of demolding and releasing the inverted buckle of the product P, the die disclosed by the invention needs to scientifically design a slope angle alpha, and obtain a reasonable vertical falling height H1 of the inclined top, and the horizontal relative movement length S1 of the inclined top. The invention discloses a mathematical model relation formula (symbols in the formula are as described above, and the deduction and proving processes are omitted) established by the following mould mechanism:
i.e.
Horizontal relative movement length of the pitched roof:
vertical relative drop height of the pitched roof:
H1＝S1·tanα
according to the production requirement, according to theoretical analysis and practical application experience data, an included angle A between an inclined guide post and a vertical direction is generally determined to be less than or equal to 30 degrees, an included angle B between a side sliding plate and a horizontal direction is generally determined to be less than or equal to 30 degrees, an included angle C between a deflector rod and the vertical direction is generally determined to be less than or equal to 20 degrees, an included angle D between a T-shaped guide rail and the horizontal direction is generally determined to be less than or equal to 30 degrees, and the vertical relative falling height H1 of the inclined top head can be regarded as a theoretical vertical back-off amount of a product, and the horizontal relative moving length S1 of the inclined top head can be regarded as a theoretical horizontal back-off amount of the product. Since the demolding of the product P is performed in the vertical direction, in general, the angled head 2 can move a certain distance in the horizontal direction with respect to the product P, and the back-off of the product P can be performed. In this embodiment, an included angle a=13° between the oblique guide post and the vertical direction, an included angle b=23° between the side sliding plate and the horizontal direction, an included angle c=17° between the deflector rod and the vertical direction, and an included angle d=23° between the T-shaped guide rail and the horizontal direction are obtained, so that a slope angle a=47° is obtained, when the preset ejection height H of the side sliding plate is 180mm, the moving length of the oblique ejection head along the T-shaped guide rail relative to the product is l=60 mm, the vertical relative dropping height h1=43.9 mm, and the horizontal relative moving length S1 of the oblique ejection head is 40.9mm.
In addition to the above, other embodiments of the present invention are also possible, and a redundant description is not provided herein, and all technical solutions formed by equivalent substitution or equivalent transformation are included in the scope of protection claimed by the present invention.
Claims (5)
1. The automobile instrument board framework and air bag frame integrated into one piece product injection mold comprises a front mold, a front back plate, a back mold, a back plate and an inclined ejection mechanism, wherein the front mold is arranged on the front back plate, the back mold and the inclined ejection mechanism are arranged on the back plate, and the automobile instrument board framework and air bag frame integrated into one piece product injection mold is characterized in that the inclined ejection mechanism comprises a bottom plate (17), square iron (18), a core plate (19), a thimble plate (1), an inclined ejection head (2), a straight guide sleeve (3), a T-shaped guide rail (4), a vertical ejector rod (5), a universal head (7), a side sliding plate (8), a guide seat (10), a guide plate (11), a pressing plate (12), an inclined guide column (13), an inclined guide column fixing block (14), a deflector rod (15), an inclined guide sleeve (16), a reciprocating mechanism (20), a straight ejector rod (21) and a straight ejection head (22), the bottom plate (17), the square iron (18) and the core plate (19) are fixedly connected to form a mounting frame, the bottom plate (17) is fixed on the back plate, the straight guide sleeve (3) and the inclined guide sleeve (16) are fixed on the guide sleeve (19), the mounting frame and the inclined guide column fixing block (14) are fixed on one end of the mounting frame (14), the guide slide plate (11), the pressing plate (12) and the thimble plate (1) are fixedly connected to form a slide frame, and form a guide chute of the slide frame, the guide slide seat (10) is provided with an inclined hole, a loop is arranged on the inclined guide pillar (13) and is arranged in the guide chute of the slide frame and is in sliding connection with the inclined guide pillar and the inclined guide pillar, the guide slide plate (11) is provided with a straight hole, the guide slide seat (10) is provided with a chute (6), the vertical ejector rod (5) passes through the straight guide sleeve (3) and the guide slide plate (11) and is positioned in one end in the guide chute and is connected with a universal head (7) in a mounting way, the side slide plate (8) is fixed on the outer side of the universal head (7) through a stop pin (9) and is arranged on the chute (6) of the guide slide seat (10) and is in sliding connection with the inclined guide pillar, the other end of the vertical ejector rod (5) passes through a vertical guide hole arranged on the core plate, a T-shaped guide rail (4) is fixedly connected with the bottom of the inclined ejector rod (2), the T-shaped guide rail (4) is inserted into the T-shaped guide groove and is in sliding connection with the straight guide sleeve (3) and the straight hole, one end (15) passes through the guide sleeve (16) and is fixedly connected with the ejector rod (21) and the straight guide plate (19) and is fixedly connected with the ejector rod (21) and the other end (1), the horizontal relative movement length (S1) of the inclined ejector head is in installation connection with the ejector plate (1), and the following relational expression is satisfied:
wherein: s1 is the horizontal relative movement length of the inclined top head, H is the preset ejection height of the guide slide plate, A is the included angle between the inclined guide post and the vertical direction, B is the included angle between the side slide plate and the horizontal direction, C is the included angle between the deflector rod and the vertical direction, and D is the included angle between the T-shaped guide rail and the horizontal direction.
2. The injection mold for integrally molded products of an automobile instrument panel skeleton and an airbag frame according to claim 1, wherein the vertical relative drop height (H1) of the angled roof satisfies the following relation:
H1＝S1·tana
wherein: s1 is the horizontal relative movement length of the inclined top head.
3. The injection mold for integrally molded products of automobile instrument panel frameworks and airbag frames according to claim 1, wherein an included angle (A) between an inclined guide post and a vertical direction is less than or equal to 30 degrees, an included angle (B) between a side sliding plate and a horizontal direction is less than or equal to 30 degrees, an included angle (C) between a deflector rod and the vertical direction is less than or equal to 20 degrees, and an included angle (D) between a T-shaped guide rail and the horizontal direction is less than or equal to 30 degrees.
4. The injection mold for integrally molded products of automobile instrument panel frameworks and airbag frames according to claim 1, wherein the following relation is satisfied by a slope angle (alpha) with an included angle (a) between an oblique guide post and a vertical direction, a side sliding plate with an included angle (B) between a side sliding plate and a horizontal direction, a deflector rod with an included angle (C) between a vertical direction and a T-shaped guide rail with an included angle (D) between the horizontal direction:
wherein: alpha is a downhill angle, A is an included angle between the oblique guide post and the vertical direction, B is an included angle between the side sliding plate and the horizontal direction, C is an included angle between the deflector rod and the vertical direction, and D is an included angle between the T-shaped guide rail and the horizontal direction; the ramp angle (alpha) is in the range of 20 DEG to 80 deg.
5. An injection mold for integrally molded products of an automobile instrument panel skeleton and an airbag frame according to claim 2, wherein the vertical relative drop height (H1) of the tilt head is in the range of 20mm to 90mm, and the horizontal relative movement length (S1) of the tilt head is in the range of 20mm to 80 mm.
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