CN108748906A - A kind of U-shaped bend pipe rigid rotating core-pulling die of depth mouth - Google Patents
A kind of U-shaped bend pipe rigid rotating core-pulling die of depth mouth Download PDFInfo
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- CN108748906A CN108748906A CN201810842994.XA CN201810842994A CN108748906A CN 108748906 A CN108748906 A CN 108748906A CN 201810842994 A CN201810842994 A CN 201810842994A CN 108748906 A CN108748906 A CN 108748906A
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- 238000005452 bending Methods 0.000 claims abstract description 52
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 12
- 230000009471 action Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000037147 athletic performance Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 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
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/004—Bent tubes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides a kind of U-shaped bend pipe rigid rotating core-pulling dies of deep mouth, belong to technical field of mold.It solve after existing U-shaped elbow member mold rotating core-pulling mechanism formation of tubes demoulding it cannot be guaranteed that demoulding in place, thereby increases and it is possible to the technical issues of causing pipe fitting inner wall to damage.This U-shaped bend pipe rotary core pulling die includes fixed half and moving half, straight core and two pipe bending mandrels there are two being set in dynamic model, cover half, dynamic model, straight core and pipe bending mandrel form the die cavity for injection molding, die cavity both sides set that there are two rotating parts corresponding with two straight cores respectively, two rotating parts are slidably connected in dynamic model and can be rotated around the axle center of circular arc where pipe bending mandrel, the outside of rotating part has the adjutage being connected with the end of corresponding pipe bending mandrel, the side of each straight core towards corresponding rotating part offers straight trough, straight trough axially extends to the end face of straight core along straight core, adjutage is embedded in straight trough and will hold straight trough closing.This U-shaped bend pipe core-pulling die can guarantee the demoulding yields of U-shaped bend pipe.
Description
Technical field
The invention belongs to technical field of mold, are related to a kind of U-shaped bend pipe rigid rotating core-pulling die of deep mouth.
Background technology
The fast-developing and huge market demand of plastics industry is also brought while bringing opportunity for Chinese Mould Enterprise
Challenge.Core means of the mold as industry manufacture, it is very important to being played in product quality, kind, yield or even cost
Effect, the height of mould design and manufacture technology directly reflect country design and develop ability and manufacturing industry is horizontal.Exploitation tool
Having the mold of independent core technology, precision, complexity and specific use, China's plastic moulds technology is horizontal, promotes mold row to improve
Industry develops, and in industrial products, people usually may require that the product with bending shape in for example U-shaped etc. tool of camber, arc, such as in automobile
Air intake branch, industrial instruments, the first-class field of materials for construction connecting bending are most commonly seen, and such product is because shape is special, mould
Lamps structure and stripping means are complicated, and manufacture difficulty is big, and the production cycle is long.The design and fabrication of its core-pulling mechanism becomes Mold Making
Key.Smoothly to realize the core pulling of U-tube, generally first to, again to bent tube section core pulling, being protected after the completion of the core pulling of straight core part
The smooth core pulling of bent tube section is demonstrate,proved, the internal diameter of general U-tube product straight pipe ensures so all than the internal diameter size bigger of bend loss
There are enough core pulling spaces, but the size difference of the two should not be too big, so the length of straight pipe also tends to be designed shorter.
Applicant devises the Chinese patent that Authorization Notice No. is CN202702530U in order to solve the above problem, is a kind of U
Type elbow member mold rotating core-pulling mechanism, the stripping means rotated using whole cavity, mold actions are reliable, durable.But still it deposits
In some shortcomings：It cannot be guaranteed that demoulding in place after formation of tubes demoulding, it is still necessary to manually take out pipe fitting, there is operation
Risk and efficiency is low, appropriate force direction cannot be ensured during taking pipe fitting, pipe fitting inner wall may be caused to damage in addition
It is bad.Technical staff in field is to ensure that efficiency may be considered as the mode of hinge connection straight core and pipe bending mandrel, such one
Determine degree and improve efficiency, but can still generate larger active force between pipe fitting inner wall during pipe bending mandrel core pulling, easily
It generates defective products and the size of U-tube is limited larger.
Invention content
The present invention existing above problem in view of the prior art, provides a kind of deep mouth U-shaped bend pipe rigid rotating core pulling mould
Tool, the technical problem to be solved by the present invention is to：How the yields of U-shaped bend pipe is improved.
Object of the invention can be realized by the following technical scheme：
A kind of depth mouth U-shaped bend pipe rigid rotating core-pulling die, including fixed half and moving half, set that there are two straight types in the dynamic model
Core and two pipe bending mandrels, the cover half, dynamic model, straight core and pipe bending mandrel form the die cavity for injection molding, which is characterized in that
The die cavity both sides set that there are two rotating part corresponding with the two straight cores, two rotating parts respectively to be slidably connected to dynamic model
It is interior and it is equal can the axle center of circular arc where the pipe bending mandrel rotate, the outside of the rotating part has solid with the end of the corresponding pipe bending mandrel
The side of adjutage even, each straight core towards corresponding rotating part offers straight trough, and the straight trough axially prolongs along straight core
The end face of straight core is extended to, the adjutage is embedded in the straight trough and will hold straight trough closing.
Cover half, dynamic model, two straight cores and two bent tube types are collectively formed for being molded the molding die cavity of U-tube, pass through
Two rotating parts that can be slided around pipe bending mandrel axle center are set in dynamic model, and in the respective immediate rotating part of straight core direction
Side opens up straight trough, makes the adjutage on rotating part that straight trough be passed through rigidly to be connected with pipe bending mandrel, core straight in this way is in core pulling process
In will not be interfered with pipe bending mandrel and ensure to be molded intact, and need not pumping be installed again on pipe bending mandrel again after straight core core pulling
Core components reduce installation process and cause the probability to collide with, and can run through rotating part and control corresponding pipe bending mandrel, operating efficiency
Height, and rotating part synchronous rigid in rotation process drives arc track core pulling campaign of the pipe bending mandrel where itself, makes bend pipe
Power will not be acted between molding pipe fitting inner wall during core core pulling, avoid pipe fitting inner wall from damaging, in addition open straight trough
Set on the outside of straight core, ensure to make to be reserved between adjutage and molding pipe fitting inner wall after straight core core pulling so enough
Space, the size of straight pipe can design longer, avoid colliding with pipe fitting during adjutage rotation core pulling, to ensure it is high
Imitate the yields that U-shaped bend pipe is improved while core pulling.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, the end face of the straight core has transition convex
The end face of platform, the transition boss can lean with the pipe bending mandrel, and the straight trough extends to the end face of transition boss, the mistake
It is anchor ring and the outer surface smoother transition with the adjutage to cross the side of boss outwardly, which is straight
Cylinder and lower end and the intrados of the pipe bending mandrel seamlessly transit.Straight core pulling action core is not almost made between pipe fitting inner wall
Firmly, and rotary core pulling action due to being difficult to ensure absolute concentricity, the longer probability for acting stress of core pulling distance is just
Bigger, by the way that transition boss is arranged in the end face of straight core, it is in anchor ring and the appearance with adjutage to make the lateral surface of transition boss
Face seamlessly transits, and the medial surface of transition boss is right cylinder face and is seamlessly transitted with the intrados of pipe bending mandrel, such transition boss
Can participate in the molding of part elbow region and not interfere the core pulling action of straight core, to reduce pipe bending mandrel active length and
The rotation angle of rotating part further decreases the probability of generation stress during rotary core pulling, improves the yields of U-shaped bend pipe.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, the lateral surface of the rotating part is in arc-shaped,
Two horizontal-extending racks are inserted in the dynamic model, two racks are parallel and are respectively arranged on the outer of two rotating parts
Side, the medial surface of the rack and the lateral surface of corresponding rotating part engaged transmission.By the way that two horizontal-extending teeth are arranged in dynamic model
Coordinate if item is driven with the lateral surface engaging tooth of rotating part respectively, may be implemented pair by controlling the axial displacement of rack in this way
The precise manipulation of rotating part rotation is conducive to improve the yields of U-shaped bend pipe.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, the both sides of the dynamic model are respectively and fixedly provided with along institute
The axially extending baffle of straight core is stated, sliding block one and sliding block are slidably connected from inside to outside along its length between two baffles
Two, two racks are connected with the sliding block one, and the two straight cores are connected with the sliding block two, which can be with sliding block one
It leans.By the way that baffle is arranged in the both sides of dynamic model, be used in the sliding block one of control rack movement and is taken out for controlling straight core
The sliding block two of core is slidably connected between two baffles, and such baffle can provide limit and be led for the movement of sliding block one and sliding block two
To, ensure that core pulling action is accurate and reliable and personnel easy to operation are from outer operation, sliding block two made to lean with sliding block one before core pulling,
It can ensure rack must could act after straight core core pulling action starts during core pulling in this way, avoid core pulling sequence mixed
Disorderly pipe fitting is caused to damage.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, the lateral surface of the cover half is fixed with guiding
Plate offers on the inside of the guide plate and tilts the guide groove extended towards core pulling direction from top to bottom, fixed on the sliding block two
There is the guide post vertical with the guide plate, the guide post is inserted in the guide groove and the madial wall of energy respective guide slot
Sliding.It is moved with guide post mating band movable slider two by the way that guide plate is arranged on cover half and guide groove is made to pass through, is being opened in this way
Sliding block two can also move simultaneously during mould acts drives straight core core pulling, to improve core pulling efficiency and reduce driving source cloth
It sets.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, it is additionally provided with along length between two baffles
The end of the slide plate that direction is slidably connected, the slide plate is connected there are two the mounting plate being inserted in the horizontal direction in the dynamic model,
Two rotating parts are slidably connected to respectively on the mounting plate.When straight core and bent tube type core pulling in place after need eject work
Part, and only lean on rotating part rotation core pulling that the distance between pipe bending mandrel and pipe fitting can be made relatively close, it may be sent out with it when taking workpiece
Raw collision, by driving mounting plate movement, rotating part entire in this way that can continue with slide plate on mounting plate, is made rotating part setting
It is displaced outwardly, to the generation that avoids colliding with, improves yields.
In a kind of above-mentioned U-shaped bend pipe rigid rotating core-pulling die of deep mouth, the top surface of two mounting plates is respectively and fixedly provided with
Arc-shaped slide rail, two rotating parts are slidably connected with the arc-shaped slide rail respectively.By being fixed on rotation in the top surface of mounting plate
The arc-shaped slide rail that portion is slidably matched can guarantee that the athletic performance specification of rotating part is accurate, further increases yields in this way.
Compared with prior art, advantages of the present invention is as follows：
1, this core-pulling die in dynamic model by being arranged two rotating parts that can be slided around pipe bending mandrel axle center, and in straight core
Straight trough is opened up towards the side of respective immediate rotating part, so that the adjutage on rotating part is passed through straight trough rigidly solid with pipe bending mandrel
Even, rotating part can be run through in this way and controls corresponding pipe bending mandrel, and operating efficiency is high, and rotating part synchronizes just in rotation process
Property drive arc track core pulling campaign of the pipe bending mandrel where itself, make during pipe bending mandrel core pulling will not in molding pipe fitting
Power is acted between wall, pipe fitting inner wall is avoided to damage, and straight trough is opened in the outside of straight core, ensures that straight core is taken out in this way
Make to be reserved with enough spaces between adjutage and molding pipe fitting inner wall after core, avoid adjutage rotation core pulling during with pipe
Part collides with, in the yields for ensureing to improve U-shaped bend pipe while efficient core pulling.
2, this core-pulling die enables transition boss to participate in part bend pipe by the way that transition boss is arranged in the end face of straight core
The molding in region and the core pulling action for not interfering straight core, to reduce the active length of pipe bending mandrel and the rotation angle of rotating part
Degree further decreases the probability of generation stress during rotary core pulling, improves the yields of U-shaped bend pipe.
Description of the drawings
Fig. 1 is the dimensional structure diagram of this core-pulling die.
Fig. 2 is that this core-pulling die hides the dimensional structure diagram after cover half.
Fig. 3 is the dimensional structure diagram of straight core, pipe bending mandrel and rotating part cooperation.
Fig. 4 is the dimensional structure diagram of straight core.
Fig. 5 is the dimensional structure diagram of guide plate.
Fig. 6 is this core-pulling die cross-sectional view.
Fig. 7 is the dimensional structure diagram of slide plate, mounting plate and rotating part cooperation.
Fig. 8 is the dimensional structure diagram of mounting plate and rotating part cooperation.
In figure, 1, cover half；
2, dynamic model；21, die cavity；22, rack；23, baffle；
3, straight core；31, straight trough；32, transition boss；
4, pipe bending mandrel；
5, rotating part；51, adjutage；
6, sliding block one；
7, sliding block two；71, guide post；
8, guide plate；81, guide groove；
9, mounting plate；91, arc-shaped slide rail；
10, slide plate.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Picture 1-4, shown in Fig. 7, Fig. 8, the U-shaped bend pipe rigid rotating core-pulling die of this depth mouth includes cover half 1 and dynamic model 2, is moved
It is set in mould 2 there are two straight core 3 and two pipe bending mandrels 4, cover half 1, dynamic model 2, straight core 3 and bent tube type, which are formed, is used for injection molding
Die cavity 21, be also slidably connected in dynamic model 2 there are two rotating part 5, two rotating parts 5 are located at the both sides of die cavity 21 and can be around
The axle center of pipe bending mandrel 4 rotates, and the outside of the rotating part 5 has the adjutage 51 connected with the end of pipe bending mandrel 4, each straight core
3 offer straight trough 31 towards the side of nearest rotating part 5, and straight trough 31 axially extends to the end face of straight core 3 along straight core 3, prolongs
Semi-girder 51 is embedded in straight trough 31 and is closed straight trough 31 is held.Cover half 1,2, two straight cores 3 of dynamic model and two bent tube types are common
It is formed for being molded the molding die cavity 21 of U-tube, passes through the rotation that setting two can be slided around 4 axle center of pipe bending mandrel in dynamic model 2
Portion 5, and straight trough 31 is opened up in the side of straight core 3 towards respective immediate rotating part 5, make the adjutage 51 on rotating part 5
It is connected across straight trough 31 and 4 rigidity of pipe bending mandrel, core 3 straight in this way will not interfere and protect with pipe bending mandrel 4 during core pulling
Card molding is intact, and need not install core pulling component on pipe bending mandrel 4 again again after 3 core pulling of straight core, reduces installation process and causes
The probability to collide with, and rotating part 5 can be run through and control corresponding pipe bending mandrel 4, operating efficiency is high, and rotating part 5 was rotating
Synchronous rigid drives arc track core pulling campaign of the pipe bending mandrel 4 where itself in journey, and making during 4 core pulling of pipe bending mandrel will not be with
Power is acted between molding pipe fitting inner wall, pipe fitting inner wall is avoided to damage, straight trough 31 is opened in the outer of straight core 3 in addition
Side makes to be reserved with enough spaces between adjutage 51 and molding pipe fitting inner wall, avoids prolonging after ensureing 3 core pulling of straight core in this way
Semi-girder 51 collides with during rotating core pulling with pipe fitting, in the yields for ensureing to improve U-shaped bend pipe while efficient core pulling.Into
For one step, there is transition boss 32, end face and the pipe bending mandrel 4 of transition boss 32 to lean for the end face of straight core 3, and straight trough 31 prolongs
The end face of transition boss 32 is extended to, the lateral surface of transition boss 32 is anchor ring and the outer surface smoother transition with adjutage 51, is somebody's turn to do
The medial surface of transition boss 32 is right cylinder face and is seamlessly transitted with the intrados of pipe bending mandrel 4.By being arranged in the end face of straight core 3
Transition boss 32, it is in anchor ring and the outer surface smoother transition with adjutage 51, and transition boss to make the lateral surface of transition boss 32
32 medial surface is right cylinder face and is seamlessly transitted with the intrados of pipe bending mandrel 4 that such transition boss 32 can participate in part bend pipe
The molding in region and do not interfere the core pulling action of straight core 3, to reduce pipe bending mandrel 4 active length and rotating part 5 rotation
Angle further decreases the probability of generation stress during rotary core pulling, improves the yields of U-shaped bend pipe.
As shown in Fig. 1-3, Fig. 7, Fig. 8, the lateral surface of rotating part 5 is in arc-shaped, and two horizontal extensions are inserted in dynamic model 2
Rack 22, two racks, 22 parallel and rack 22 medial surface respectively with the lateral surface of rotating part 5 engaged transmission.By in dynamic model
Coordinate if two horizontal-extending racks 22 of setting are driven with the lateral surface engaging tooth of rotating part 5 respectively in 2, passes through control in this way
The precise manipulation rotated to rotating part 5 may be implemented in the axial displacement of rack 22, is conducive to improve the yields of U-shaped bend pipe.
As shown in Figure 1, Figure 2, Figure 6 shows, the both sides of dynamic model 2 are respectively and fixedly provided with along the axially extending baffle 23 of straight core 3, two baffles
Slidably connect sliding block 1 and sliding block 27 between 23 from inside to outside along its length, two racks 22 are connected with sliding block 1, and two is straight
Core 3 is connected with sliding block 27, which leans with sliding block 1.By the way that baffle 23 is arranged in the both sides of dynamic model 2, use
In control rack 22 move sliding block 1 and for control the sliding block 27 of 3 core pulling of straight core be slidably connected to two baffles 23 it
Between, such baffle 23 can provide limit and guiding for the movement of sliding block 1 and sliding block 27, ensure core pulling action it is accurate and reliable and
Personnel easy to operation lean from outer operation, sliding block 27 with sliding block 1, and can ensure in this way must be straight during core pulling
3 core pulling action of core, which starts rear rack 22, to be acted, and avoid core pulling sequence confusion that pipe fitting is caused to damage.
As shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 6, there are two guide plates 8 for the both sides fixation of cover half 1, and the inside of guide plate 8 opens up
Have and tilt the guide groove 81 extended towards core pulling direction from top to bottom, fixed on sliding block 27 there are two the guiding vertical with guide plate 8
Column 71, guide post 71 is inserted in guide groove 81 and the madial wall sliding of energy respective guide slot 81.It is led by being arranged on cover half 1
To plate 8 and make guide groove 81 by being moved with 71 mating band movable slider 27 of guide post, in this way sliding block during die sinking acts
27 can also move straight 3 core pulling of core of drive simultaneously, to improve core pulling efficiency and reduce driving source arrangement.
As shown in Fig. 2, Fig. 6-8, the slide plate 10 being slidably connected along its length is additionally provided between two baffles 23, the slide plate 10
End be connected there are two mounting plate 9 in dynamic model 2 is inserted in the horizontal direction, two rotating parts 5 are slidably connected to installation respectively
On plate 9.When straight core 3 and bent tube type core pulling in place after need eject workpiece, and only lean on rotating part 5 rotate core pulling can make pipe bending mandrel
The distance between 4 and pipe fitting are relatively close, may collide with it when taking workpiece, by the way that rotating part 5 to be arranged and mounting plate 9
On, make slide plate 10 that mounting plate 9 be driven to move, entire rotating part 5 can continue to be displaced outwardly in this way, to the generation that avoids colliding with,
Improve yields.The top surface of two mounting plates 9 is respectively and fixedly provided with arc-shaped slide rail 91, and two rotating parts 5 are slided with arc-shaped slide rail 91 respectively to be connected
It connects.By being fixed on the arc-shaped slide rail 91 that rotating part 5 is slidably matched in the top surface of mounting plate 9, the fortune of rotating part 5 can guarantee in this way
Dynamic action norm is accurate, further increases yields.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of U-shaped bend pipe rigid rotating core-pulling die of depth mouth, including cover half (1) and dynamic model (2), the dynamic model (2) is interior to be equipped with
Two straight cores (3) and two pipe bending mandrels (4), the cover half (1), dynamic model (2), straight core (3) and pipe bending mandrel (4) formation are used for
The die cavity (21) of injection molding, which is characterized in that the both sides of the die cavity (21) set there are two respectively with the two straight cores (3)
Corresponding rotating part (5), two rotating parts (5) are slidably connected in dynamic model and can be around the axis of circular arc where pipe bending mandrel (4)
The heart rotates, and the outside of the rotating part (5) has the adjutage (51) being connected with the end of the corresponding pipe bending mandrel (4), each described
The side of straight core (3) towards corresponding rotating part (5) offers straight trough (31), and the straight trough (31) is axially prolonged along straight core (3)
The end face of straight core (3) is extended to, the adjutage (51) is embedded in the straight trough (31) and will hold straight trough (31) and closes.
2. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 1, which is characterized in that the straight core (3)
End face there is transition boss (32), the end face of the transition boss (32) can lean with the pipe bending mandrel (4), the straight trough
(31) extend to the end face of transition boss (32), the side of the transition boss (32) outwardly be anchor ring and with the adjutage
(51) outer surface smoother transition, the side of transition boss (32) inwardly are right cylinder face and lower end and the pipe bending mandrel (4)
Intrados seamlessly transits.
3. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 1 or 2, which is characterized in that the rotating part
(5) lateral surface is in arc-shaped, and two horizontal-extending racks (22), two racks (22) are inserted in the dynamic model (2)
Outside that is parallel and being respectively arranged on two rotating parts (5), the outside of the medial surface and corresponding rotating part (5) of the rack (22)
Face engaged transmission.
4. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 3, which is characterized in that the dynamic model (2)
Both sides are respectively and fixedly provided between the axially extending baffle (23) of the straight core (3), two baffles (23) along its length certainly
Sliding block one (6) and sliding block two (7) are slidably connected from inside to outside, and two racks (22) are connected with the sliding block one (6), described in two
Straight core (3) is connected with the sliding block two (7), which can lean with sliding block one (6).
5. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 4, which is characterized in that the cover half (1)
Lateral surface is fixed with guide plate (8), is offered on the inside of the guide plate (8) and tilts leading for extension towards core pulling direction from top to bottom
To slot (81), the guide post vertical with the guide plate (8) (71), the guide post (71) are fixed on the sliding block two (7)
It is inserted in the guide groove (81) and the madial wall of energy respective guide slot (81) slides.
6. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 4, which is characterized in that two baffles
(23) it is additionally provided with the slide plate (10) being slidably connected along its length between, the end of the slide plate (10) is connected, and there are two along level side
To the mounting plate (9) being inserted in the dynamic model (2), two rotating parts (5) are slidably connected to the mounting plate (9) respectively
On.
7. the U-shaped bend pipe rigid rotating core-pulling die of depth mouth according to claim 6, which is characterized in that two mounting plates
(9) top surface is respectively and fixedly provided with arc-shaped slide rail (91), and two rotating parts (5) are slidably connected with the arc-shaped slide rail (91) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842994.XA CN108748906B (en) | 2018-07-27 | 2018-07-27 | Rigid rotary core-pulling die for deep-opening U-shaped bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842994.XA CN108748906B (en) | 2018-07-27 | 2018-07-27 | Rigid rotary core-pulling die for deep-opening U-shaped bent pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108748906A true CN108748906A (en) | 2018-11-06 |
| CN108748906B CN108748906B (en) | 2024-03-15 |
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ID=63971999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810842994.XA Active CN108748906B (en) | 2018-07-27 | 2018-07-27 | Rigid rotary core-pulling die for deep-opening U-shaped bent pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN108748906B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587927A (en) * | 2019-10-18 | 2019-12-20 | 固特科工业塑料件科技(深圳)有限公司 | Branch pipe injection molding device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102007016767A1 (en) * | 2006-10-20 | 2008-04-24 | Horst Severyns | Device for injection molding a tubular manifold made from polyvinylidene fluoride comprises axially moving cylinder core parts for connecting supports and a manifold core part sliding along the middle line of the manifold region |
| CN201342776Y (en) * | 2009-01-16 | 2009-11-11 | 浙江凯华模具有限公司 | Ejection mechanism for arc-shaped elbow pipe fittings |
| CN101811339A (en) * | 2009-02-19 | 2010-08-25 | 浙江凯华模具有限公司 | Plastic die of cambered elbow pipe of 90 degrees |
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| CN203805253U (en) * | 2014-03-14 | 2014-09-03 | 深圳亿和模具制造有限公司 | Circular arc bent pipe core-pulling mold |
| CN205951187U (en) * | 2016-08-11 | 2017-02-15 | 创意塑胶工业（苏州）有限公司 | Core pulling and demolding mechanism of circle curved pipe |
| CN206953469U (en) * | 2017-06-05 | 2018-02-02 | 永高股份有限公司 | A kind of core-pulling device of pipe fitting mold and there is its bend pipe tube bundle extracting machine |
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| CN110587927A (en) * | 2019-10-18 | 2019-12-20 | 固特科工业塑料件科技(深圳)有限公司 | Branch pipe injection molding device |
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| CN108748906B (en) | 2024-03-15 |
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