CN107932841B - Sliding block core-pulling mechanism - Google Patents
Sliding block core-pulling mechanism Download PDFInfo
- Publication number
- CN107932841B CN107932841B CN201711226551.XA CN201711226551A CN107932841B CN 107932841 B CN107932841 B CN 107932841B CN 201711226551 A CN201711226551 A CN 201711226551A CN 107932841 B CN107932841 B CN 107932841B
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- Prior art keywords
- block
- sliding block
- small slide
- slide block
- limit
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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
-
- 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
- B29C45/40—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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of sliding block core-pulling mechanisms, including being connected to dynamic model upper bed-plate (1), it is characterized by: the pedestal (1) is equipped with bottom plate (2), slidably big sliding block (3) are equipped on the bottom plate (2), the pedestal (1) is equipped with pulling block (4) and oil cylinder (5), one end of the pulling block (4) is connect with the piston rod of oil cylinder (5), the other end is removable to be fitted on big sliding block (3), is additionally provided with ramp-roof structure and straight roof construction in the big sliding block (3).A kind of sliding block core-pulling mechanism disclosed by the invention, structure is simple, compact, and stability is good, has deferred action, and when demoulding will not damage product overhead structure.
Description
Technical field
The present invention relates to technical field of mold, specifically a kind of sliding block core-pulling mechanism.
Background technique
Injection molding process is processing method very universal in existing plastic product production, and is led in injecting products
Can often there be an overhead structure of some sides, this structure usually requires to do in product stripping side core-pulling mechanism, and in order to
It prevents product Barb portion from can have damage in demoulding, certain deferred action, existing skill is also needed while side core-pulling
Largely add the combination of waist-shaped hole in art using angle ejector rod when solving the problems, such as this kind, this structure needs upper and lower mould to beat
There is sufficiently large space when opening, the twice core pulling movement being otherwise delayed is difficult to realize, and the volume that this can result in grinding tool is big, cost
It is high.
So being badly in need of a kind of compact-sized, small in size, the good sliding block for the demoulding of product side overhead structure of stability
Core-pulling mechanism.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of sliding block core-pulling mechanism, structure is simple, compact, stability
It is good, have the function of deferred action, when demoulding will not damage product overhead structure.
The technical solution used in the present invention is: provide a kind of sliding block core-pulling mechanism, including the pedestal being connected on dynamic model,
The pedestal is equipped with bottom plate, and big sliding block is slidably equipped on the bottom plate, and the pedestal is equipped with pulling block and oil
Cylinder, one end of the pulling block and the piston rod of oil cylinder connect, and the other end is removable to be fitted on big sliding block, the big sliding block
Inside it is additionally provided with ramp-roof structure and straight roof construction；
The ramp-roof structure includes the first small slide block and the angle ejector rod that sliding is fitted on the first small slide block, and described is oblique
Mandril is arranged with the first small slide block at inclination angle, and the angle ejector rod is equipped with slanted kicking block far from one end of the first small slide block, described
First small slide block is equipped with first through hole, slidably connects the first limited block in the first through hole, on the big sliding block
Equipped with the first limit hole that can cooperate limit with the upper end of the first limited block, the bottom plate is equipped with can be with the first limited block
Second limit hole of lower end cooperation limit；
The straight roof construction includes the second small slide block and the straight mandril that is located on the second small slide block, and the straight mandril is remote
One end from the second small slide block is equipped with straight jacking block, and second small slide block is equipped with the second through-hole, in second through-hole
The second limited block is slidably connected, the big sliding block, which is equipped with, to cooperate the third of limit to limit with the upper end of the second limited block
Hole, the bottom plate are equipped with the 4th limit hole that can cooperate limit with the lower end of the second limited block, second small slide block
Spring is equipped between big sliding block, when big sliding block has just started sliding, the spring drives directly for withstanding the second small slide block
Mandril withstands product, and when big sliding block is moved to the first predeterminated position, second small slide block follows big sliding block to move together,
The first small slide block is motionless in above-mentioned moving process, and under angle ejector rod guiding role, slanted kicking block is separated with product barb face, when big
When sliding block continuously moves to the second predeterminated position, first small slide block also follows big sliding block to move together, and it is complete to complete product
Full demoulding.
Of the invention has the advantage that compared with prior art
Ramp-roof structure and straight roof construction have been done good combination by sliding block core-pulling mechanism of the invention, and ramp-roof structure is mainly used
In the demoulding with product Barb portion, straight roof construction, for withstanding product, prevents product from following when big sliding block has just started mobile
Big sliding block move together, since there are overhead structures for product side, so can have the risk of damage product side barb；
When mold is in molding state, the first limited block cooperation limit in ramp-roof structure is straight to push up in the second limited block
The second limited block cooperation limit of structure is in the 4th limit hole；
When being opened core pulling, big sliding block is past under the driving effect of oil cylinder to be moved right, in this moving process, the second small slide block
Spring between big sliding block acts against straight jacking block on product, and the first small slide block is also slack at the same time, due to oblique top
Bar is obliquely installed in big sliding block, when big sliding block, which is turned right, to be moved horizontally, the angle ejector rod direction opposite along inclined direction
Mobile, slanted kicking block slowly slides under the drive of angle ejector rod along the direction away from product overhead structure, when the second small slide block moves
It moves to the left side wall of accommodating cavity on big sliding block and the second small slide block left side wall when leaning, third limit hole is placed exactly in the second limit
The surface of position block, oil cylinder continue to drive big sliding block toward moving right, due to being empty above the second limited block at this time, so
With under the action of the 4th limit hole, the second limited block upper end is squeezed into third limit hole the protrusion of second limited block lower end,
The second limited block no longer mutually limits the second small slide block with bottom plate at this time, but mutually limits big sliding block and the second small slide block
Position, hereafter the second small slide block is turned right movement together with big sliding block, and the first small slide block is still slack at this time, slanted kicking block still edge
It is mobile away from the direction of product barb, until the second small slide block and big sliding block, which are moved together to the first limit hole, is placed exactly in the
The surface of one limited block, oil cylinder continue to drive, similarly due to being empty above the first limited block, so in the first limit
Under the action of the lower section protrusion of block and the second limit hole, the upper end of the first limited block is squeezed into the first limit hole, at this time
First limited block no longer limits the first small slide block with bottom plate, but is mutually limited the first small slide block and big sliding block
Position, hereafter the first small slide block is turned right movement together with big sliding block, is no longer moved between angle ejector rod and the first small slide block, oblique top
Bar only moves together with big sliding block along toward right direction, realizes the complete demoulding of product.
Limit in the present invention is all that delayed switching is realized by limited block, and flexibility and accuracy are relatively high, is taken out
Core process stability is preferable, and will not overhead structure part to product generate damage.
Further, the first predeterminated position refers to, big sliding block slides into accommodating cavity left side wall and the second small slide block left side wall
It leans, the upper end cooperation limit of the second limited block is in third limit hole at this time, so that big sliding block is connect with the second small slide block
It is integrated；Second predeterminated position refers to, when big sliding block with the second small slide block continue sliding together until the first limited block it is upper
End cooperation limit is in the first limit hole, and big sliding block is connected as one with the first small slide block at this time.
As an improvement, the vertical cross-section of first limit hole, the second limit hole, third limit hole and the 4th limit hole
Be it is trapezoidal or arc-shaped, the upper and lower ends of the first limit block and the second limit block are equipped with and corresponding limit hole
The consistent retention bead of shape.Each limit hole be trapezium structure or arc-shaped structure with it is convex on corresponding limited block
It rises when relatively moving, better guiding role can be played, with guiding role power.
It improves again, the bottom plate is equipped with the first locating piece, for controlling the shift position of the first small slide block, molds
When, first small slide block acts against on the first locating piece, at this point, the lower end cooperation limit of the first limited block is in the second limit
In hole.Small slide block movement is limited by the first locating piece being arranged in bottom plate, so that the first small slide block and big sliding block
With more stable position-limiting action when moving together to extreme position, if only the limit by limited block and limit hole is made
With the risk that can be detached from.
As an improvement, the big sliding block is equipped with accommodating cavity, second small slide block is slidably fitted in accommodating cavity
The second interior and described small slide block is between distance slidable in accommodating cavity is equal between third limit hole and the 4th limit hole
Away from.The setting of this structure so that big sliding block turn right be moved to certain distance when, accommodating cavity left side wall offsets with the second small slide block
Big sliding block drives the second small slide block together toward moving right rearward, because relying solely on the cooperation of the second limited block Yu third limit hole
Positioning between the second small slide block and big sliding block or can have the risk of opposite sliding, and use make after this structure it is second small
With stable driving effect when sliding block and big sliding block move together.
It improves again, second small slide block is equipped with the second locating piece, and dynamic model mold core is equipped with and the second locating piece phase
The equipped hole of cooperation, when molding, the equipped limit of second locating piece is in equipped hole, and the lower end of the second limited block is matched at this time
Limit is closed in the 4th limit hole.This second locating piece limits when being used for the second downslide block reset, and when molding, second is fixed
Position block acts against in equipped hole, avoids the second small slide block from colliding with accommodating cavity side wall, the second small slide block is caused to deform.
As an improvement, the bottom plate is equipped with limited block, the big sliding block is equipped with limiting slot, when big sliding block is sliding
It moves to the limiting slot slot bottom and limited block left side wall when leaning, the big sliding block stops sliding.
As an improvement, first small slide block is equipped with T-slot, the angle ejector rod is set close to one end of the first small slide block
There is T-type protrusion, the angle ejector rod is slidably fitted in T-slot by T-type protrusion.First small slide block and angle ejector rod pass through T
Type groove structure carries out sliding and is equipped with, and structure is simple, and connective stability is good, and when the first small slide block is motionless, angle ejector rod is led in big sliding block
Along T-slot sliding motion under to effect, barb demoulding is realized, when the first small slide block is past to move right, and can be connected by T-slot
Driving angle ejector rod is connect to turn right together movement.
As an improvement, the pedestal is equipped with sliding slot, the two sides of the sliding slot are equipped with wear-resistant block, on the wear-resistant block
Equipped with groove, the big sliding block is slidably fitted in sliding slot, and big sliding block both ends are equipped with the chimb with groove cooperation limit.Greatly
Sliding block and the movement position that is slidably matched increase wear-resistant block, increase the service life of big sliding block, and wear-resistant block is equipped with sliding slot,
Big sliding block is equipped with chimb, so that it is more stable to be slidably matched, guiding performance is more preferable.
As an improvement, being additionally provided with third small slide block and inclined guide pillar in the big sliding block, set in the third small slide block
There is oblique through hole, the upper end of the inclined guide pillar is connected on cover half, and the lower end of the inclined guide pillar is slidably inserted into oblique through hole.It should
Structure can be used for the demoulding of the small barb in another place in product upper top position, and structure is simple, is convenient in demoulding.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sliding block core-pulling mechanism of the invention.
Fig. 2 is another angled arrangement schematic diagram of sliding block core-pulling mechanism of the invention.
Fig. 3 is the cross-sectional view in Fig. 1.(main display pitched roof mechanism structure chart)
Fig. 4 is another angle cross-sectional view in Fig. 1.(the main straight top mechanism structure figure of display)
Fig. 5 is the structural schematic diagram removed after big sliding block in Fig. 1.
Fig. 6 is another angled arrangement schematic diagram of Fig. 5.
Fig. 7 is amplification assumption diagram at X in Fig. 3.
Fig. 8 is amplification assumption diagram at Y in Fig. 4.
Wherein, 1, pedestal, 1.1, sliding slot, 2, bottom plate, the 2.1, second limit hole, the 2.2, the 4th limit hole, 3, big sliding block,
3.1, the first limit hole, 3.2, third limit hole, 3.3, accommodating cavity, 3.4, limiting slot, 3.5, chimb, 4, pulling block, 5, oil cylinder, 6,
First small slide block, 6.1, first through hole, 6.2, T-slot, 7, angle ejector rod, 7.1, T-type protrusion, 8, slanted kicking block, the 9, first limited block,
10, the second small slide block, the 10.1, second through-hole, 10.2, spring eye, 11, straight mandril, 12, straight jacking block, the 13, second limited block, 14,
Spring, 15, retention bead, the 16, first locating piece, the 17, second locating piece, 18, limited block, 19, wear-resistant block, 19.1, groove,
20, third small slide block, 20.1, oblique through hole, 21, inclined guide pillar
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
As shown in Fig. 1~8, the present invention provides a kind of sliding block core-pulling mechanism, including is connected to 100 upper bed-plate 1 of dynamic model, pedestal
1 is equipped with bottom plate 2, is slidably equipped with big sliding block 3 on bottom plate 2, and pedestal 1 is equipped with pulling block 4 and oil cylinder 5, one end of pulling block 4 with
The piston rod of oil cylinder 5 connects, and the other end is removable to be fitted on big sliding block 3, is additionally provided with ramp-roof structure and Zhi Ding in big sliding block 3
Structure.
Ramp-roof structure include the first small slide block 6 and sliding be fitted on the first small slide block 6 angle ejector rod 7, in particular to, the
One small slide block 6 is equipped with T-slot 6.2, and angle ejector rod 7 is equipped with T-type protrusion 7.1 close to one end of the first small slide block 6, and angle ejector rod 7 is logical
T-type protrusion 7.1 is crossed slidably to be fitted in T-slot 6.2.
Angle ejector rod 7 is arranged with the first small slide block 6 at inclination angle, originally implements, and the angle ejector rod 7 is along close to product barb
Position side is obliquely installed, and preferred tilt angle is set as 15 °, is equipped in angle ejector rod 7 far from one end of the first small slide block 6
Slanted kicking block 8, the first small slide block 6 are equipped with first through hole 6.1, slidably connect the first limited block 9 in first through hole 6.1, big sliding
Block 3 is equipped with the first limit hole 3.1 that can cooperate limit with the upper end of the first limited block 9, and bottom plate 2 is equipped with can be with the first limit
Second limit hole 2.1 of the lower end cooperation limit of block 9.
It small slide block 10 and the straight mandril 11 that is located on the second small slide block 10 that straight roof construction, which includes second, and straight mandril 11 is far from the
One end of two small slide blocks 10 is equipped with straight jacking block 12, and the second small slide block 10 is equipped with the second through-hole 10.1, slides in the second through-hole 10.1
Dynamic to be connected with the second limited block 13, big sliding block 3 is equipped with the third limit hole that can cooperate limit with the upper end of the second limited block 13
3.2, bottom plate 2 is equipped with can cooperate the 4th limit hole 2.2 limited with the lower end of the second limited block 13, big sliding in the present embodiment
Block 3 is equipped with accommodating cavity 3.3, and the second small slide block 10 is slidably fitted in accommodating cavity 3.3, and the second small slide block 10 is in accommodating cavity
Slidably distance a is equal to the spacing b between third limit hole 3.2 and the 4th limit hole 2.2 in 3.3.
It is equipped with spring 14 between second small slide block 10 and big sliding block 3, bullet is equipped on the right side wall of second small slide block 10
Spring hole 10.2, one end of spring 14 act against 10.2 bottom of spring eye, and the other end acts against on the right side wall of accommodating cavity 3.3, when
When big sliding block 3 just starts sliding, spring 14, which withstands the second small slide block 10, drives straight mandril 11 to withstand product, avoids product and then big
Sliding block 3 moves together, and when big sliding block 3 is moved to the first predeterminated position, the second small slide block 10 follows big sliding block 3 to move together,
The first small slide block 6 is motionless in above-mentioned moving process, and under 7 guiding role of angle ejector rod, slanted kicking block 8 is separated with product barb face,
When big sliding block 3 continuously moves to the second predeterminated position, first small slide block 6 also follows big sliding block 3 to move together, and completes
Product demoulds completely.
In the present embodiment, the first predeterminated position refers to, big sliding block 3 slides into 3.3 left side wall of accommodating cavity and the second small slide block
10 left side walls lean, the upper end cooperation limit of the second limited block 13 at this time in third limit hole 3.2 so that big sliding block 3 with
Second small slide block 10 is connected as one；Second predeterminated position refers to, when big sliding block 3 continues to slide together with the second small slide block 10
To the cooperation limit of the upper end of the first limited block 9 in the first limit hole 3.1, big sliding block 3 and the first small slide block 6 are connected as one at this time
Body.
In the present embodiment, the first limit hole 3.1, the second limit hole 2.1, third limit hole 3.2 and the 4th limit hole 2.2
Vertical cross-section be it is trapezoidal or arc-shaped, the upper and lower ends of the first limited block 9 and the second limited block 13 be equipped with it is respectively corresponding
The consistent retention bead 15 of limit hole shape.
Bottom plate 2 is equipped with the first locating piece 16, for controlling the shift position of the first small slide block 6, when molding, and the first small cunning
Block 6 acts against on the first locating piece 16, at this point, the lower end cooperation limit of the first limited block 9 is in the second limit hole 2.1.
Second small slide block 10 is equipped with the second locating piece 17, and dynamic model mold core is equipped with matches with what the second locating piece 17 matched
Hole is filled, when molding, the equipped limit of the second locating piece 17 is in equipped hole, and the lower end cooperation limit of the second limited block 13 at this time is the
In four limit holes 2.2.
Bottom plate 2 is equipped with limited block 18, and big sliding block 3 is equipped with limiting slot 3.4, turns right when big sliding block 3 and be moved to limit
When 3.4 slot bottom of slot and 18 left side wall of limited block lean, big sliding block 3 stops sliding.
In the present embodiment, pedestal 1 is equipped with sliding slot 1.1, and the two sides of sliding slot 1.1 are respectively equipped with wear-resistant block 19, and wear-resistant block
19 be equipped with groove 19.1, big 3 both ends of sliding block be equipped with groove 19.1 cooperation limit chimb 3.5, big 3 both ends of sliding block with it is wear-resisting
Block 19 is slidably equipped with.
It is additionally provided with third small slide block 20 and inclined guide pillar 21 in big sliding block 3, is equipped with oblique through hole 20.1 in third small slide block 20, tiltedly
The upper end of guide post 21 is connected on cover half, and the lower end of inclined guide pillar 21 is slidably inserted into oblique through hole 20.1.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This hair
Bright to be not only limited to above embodiments, specific structure is allowed to vary, all institutes in the protection scope of demand for independence of the present invention
The various change of work is within the scope of the invention.
Claims (10)
1. a kind of sliding block core-pulling mechanism, including the pedestal (1) being connected on dynamic model, it is characterised in that: set on the pedestal (1)
Have bottom plate (2), be slidably equipped with big sliding block (3) on the bottom plate (2), the pedestal (1) is equipped with pulling block (4) and oil
One end of cylinder (5), the pulling block (4) is connect with the piston rod of oil cylinder (5), and the other end is removable to be fitted on big sliding block (3),
Ramp-roof structure and straight roof construction are additionally provided in the big sliding block (3)；
The ramp-roof structure includes that the first small slide block (6) and sliding are fitted in the angle ejector rod (7) on the first small slide block (6), institute
The angle ejector rod (7) stated is arranged with the first small slide block (6) at inclination angle, the one end of the angle ejector rod (7) far from the first small slide block (6)
Equipped with slanted kicking block (8), first small slide block (6) is equipped with first through hole (6.1), sliding in the first through hole (6.1)
Dynamic to be connected with the first limited block (9), the big sliding block (3), which is equipped with, to cooperate limit with the upper end of the first limited block (9)
First limit hole (3.1), the bottom plate (2) are equipped with the second limit that can cooperate limit with the lower end of the first limited block (9)
Hole (2.1)；
The straight roof construction includes the second small slide block (10) and the straight mandril (11) being located on the second small slide block (10), described
Straight mandril (11) is equipped with straight jacking block (12) far from the one end of the second small slide block (10), and second small slide block (10) is equipped with the
Two through-holes (10.1), second through-hole (10.1) is interior to be slidably connected the second limited block (13), on the big sliding block (3)
Equipped with the third limit hole (3.2) that can cooperate limit with the upper end of the second limited block (13), the bottom plate (2) is equipped with can be with
4th limit hole (2.2) of the lower end cooperation limit of the second limited block (13), second small slide block (10) and big sliding block (3)
Between be equipped with spring (14), when big sliding block (3) just started sliding when, the spring (14) be used for withstand the second small slide block (10)
Drive straight mandril (11) to withstand product, when big sliding block (3) is moved to the first predeterminated position, second small slide block (10) with
Big sliding block (3) move together, the first small slide block (6) is motionless in above-mentioned moving process, under angle ejector rod (7) guiding role,
Slanted kicking block (8) is separated with product barb face, when big sliding block (3) continuously moves to the second predeterminated position, the small cunning of described first
Block (6) also follows big sliding block (3) to move together, and completes product and demoulds completely.
2. sliding block core-pulling mechanism according to claim 1, it is characterised in that: the first predeterminated position refers to that big sliding block (3) is sliding
It moves accommodating cavity (3.3) left side wall to lean with the second small slide block (10) left side wall, the upper end of the second limited block (13) is matched at this time
Limit is closed in third limit hole (3.2), so that big sliding block (3) is connected as one with the second small slide block (10)；
Second predeterminated position refers to, when big sliding block (3) continues sliding until the first limited block with the second small slide block (10) together
(9) upper end cooperation limit is in the first limit hole (3.1), and big sliding block (3) is connected as one with the first small slide block (6) at this time.
3. sliding block core-pulling mechanism according to claim 1 or 2, it is characterised in that: first limit hole (3.1), second
The vertical cross-section of limit hole (2.1), third limit hole (3.2) and the 4th limit hole (2.2) be it is trapezoidal or arc-shaped, described
The upper and lower ends of one limited block (9) and the second limited block (13) are equipped with and the consistent limit convex of corresponding limit hole shape
It rises (15).
4. sliding block core-pulling mechanism according to claim 2, it is characterised in that: the bottom plate (2) is equipped with the first positioning
Block (16), for control the shift positions of the first small slide block (6), when molding, first small slide block (6), which acts against first, to be determined
On position block (16), at this point, the lower end cooperation limit of the first limited block (9) is in the second limit hole (2.1).
5. sliding block core-pulling mechanism according to claim 1 or 2, it is characterised in that: the big sliding block (3) is equipped with accommodating
Chamber (3.3), second small slide block (10) is slidably fitted in accommodating cavity (3.3), and second small slide block (10)
It is equal to the spacing between third limit hole (3.2) and the 4th limit hole (2.2) in distance slidable in accommodating cavity (3.3).
6. sliding block core-pulling mechanism according to claim 5, it is characterised in that: second small slide block (10) is equipped with the
Two locating pieces (17), dynamic model mold core are equipped with the equipped hole that matches with the second locating piece (17), and when molding, described second is fixed
The equipped limit of position block (17) is in equipped hole, and the lower end cooperation limit of the second limited block (13) is in the 4th limit hole (2.2) at this time
It is interior.
7. sliding block core-pulling mechanism according to claim 1, it is characterised in that: the bottom plate (2) is equipped with limited block
(18), the big sliding block (3) is equipped with limiting slot (3.4), on the left of the limiting slot (3.4) slot bottom and limited block (18)
When wall leans, the big sliding block (3) stops sliding.
8. sliding block core-pulling mechanism according to claim 1, it is characterised in that: first small slide block (6) is equipped with T-type
Slot (6.2), the angle ejector rod (7) are equipped with T-type protrusion (7.1), the angle ejector rod (7) close to the one end of the first small slide block (6)
It is slidably fitted in T-slot (6.2) by T-type raised (7.1).
9. sliding block core-pulling mechanism according to claim 1, it is characterised in that: the pedestal (1) is equipped with sliding slot
(1.1), the two sides of the sliding slot (1.1) are equipped with wear-resistant block (19), and the wear-resistant block (19) is equipped with groove (19.1), described
Big sliding block (3) is slidably fitted in sliding slot (1.1), and big sliding block (3) both ends are equipped with and cooperate the convex of limit with groove (19.1)
Side (3.5).
10. according to sliding block core-pulling mechanism described in claim 2 or 4 or 6 or 7 or 8 or 9 any one, it is characterised in that: described
Big sliding block (3) in be additionally provided with third small slide block (20) and inclined guide pillar (21), be equipped in the third small slide block (20) and tiltedly lead to
The upper end in hole (20.1), the inclined guide pillar (21) is connected on cover half (101), and the lower end of the inclined guide pillar (21) slidably inserts
In oblique through hole (20.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110154334B (en) * | 2019-06-04 | 2021-08-24 | 浙江台州美多模具有限公司 | Multi-direction core-pulling mechanism for sliding block of injection mold |
| CN110421796B (en) * | 2019-08-27 | 2024-04-05 | 厦门新倍鑫模具有限公司 | Mould secondary core-pulling structure for replacing slider hinge tooth structure |
| CN113478755A (en) * | 2021-06-18 | 2021-10-08 | 宁波方正汽车模具股份有限公司 | Lateral core-pulling structure of automobile air conditioner shell |
| 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 |
| CN114523633A (en) * | 2022-01-11 | 2022-05-24 | 宁波方正汽车模具股份有限公司 | Secondary demoulding structure |
| CN114393794B (en) * | 2022-01-20 | 2024-03-22 | 宁波东恩精密机械有限公司 | Forming die convenient to back-off shaping and drawing of patterns |
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