CN109318452A - Automatic shearing valve gated mold structure in a kind of mould of plastic pipe - Google Patents
Automatic shearing valve gated mold structure in a kind of mould of plastic pipe Download PDFInfo
- Publication number
- CN109318452A CN109318452A CN201811385397.5A CN201811385397A CN109318452A CN 109318452 A CN109318452 A CN 109318452A CN 201811385397 A CN201811385397 A CN 201811385397A CN 109318452 A CN109318452 A CN 109318452A
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- China
- Prior art keywords
- plastic pipe
- template
- mould
- automatic shearing
- mold structure
- Prior art date
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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
- B29C45/261—Moulds having tubular mould cavities
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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
- B29C45/38—Cutting-off equipment for sprues or ingates
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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
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to injection mold technology, automatic shearing valve gated mold structure in especially a kind of mould of plastic pipe.Automatic shearing valve gated mold structure includes dynamic model, cover half, the core pulling A and core pulling B being slidably connected with the dynamic model in the mould of the plastic pipe, and the dynamic model is fixedly connected with corresponding with cast gate for cutting off the blade of cast gate；The core pulling B drives the plastic pipe mobile towards the blade after the core pulling A and the dynamic model are detached from the plastic pipe, and the blade is made to cut off the cast gate connecting with the plastic pipe.In the present invention, automatic shearing valve gated mold structure setting wiper plate in the mould of plastic pipe, wiper plate fixed blade, plastic pipe are moved to blade position cutting cast gate with fuse stripping direction under the enclasping force of fuse, situations such as plastic pipe is not in inclination, off-position are stable, accurate.
Description
Technical field
The present invention relates to injection mold technology, automatic shearing gating pattern is signed an undertaking in especially a kind of mould of plastic pipe
Structure.
Background technique
Institute is obtained to be molded the methods of blow molding, extrusion, die casting or forging and forming, smelting, punching press in mould industry production
The various moulds and tool of product are needed, in brief, mold is the tool for making formed article, and this tool is by various zero
Part is constituted, and different molds is made of different parts, and in plastic mould manufacturing industry, appearance member plastic cement products are more and more,
The requirement of such appearance member product is very strict, product surface phenomena such as there can be no bonding wires, current mark flash, cast gate, this
Just to the manufacture of plastic mould, more stringent requirements are proposed.
In production after product injection molding, also there are cast gate on product, such as bridging type cast gate or side gate, outside cast gate
Plastic cement links together with product, needs to cut off in plastic cement, and to guarantee the beauty of product, existing cast gate shearing is usually people
Work shearing, this cut mode manual labor amount is big, and shear velocity is slow, not beautiful enough at shearing, influences the quality of product, works
Inefficiency.
Referring to Figure 1, the Chinese utility model patent of Publication No. CN204936092U discloses a kind of pipe fitting injection mould
Have automatic shearing side gate mechanism in mould, is applied to injection mold, mold includes upper die and lower die and pedestal, and automatic shearing side is poured
Mouth mechanism includes: cutter, oil cylinder, oil cylinder hanging plate and plate, and oil cylinder hanging plate is arranged in the lower die and any side of the pedestal,
Oil cylinder is connect with oil cylinder hanging plate, and the bottom end of oil cylinder hanging plate is fixed on plate, and plate is slidably connected with pedestal, is equipped with above pedestal
Upper needle plate and lower needle plate, lower needle plate are located at the top of plate.Automatic shearing side gate mechanism is under in the pipe fitting injection molding mold mould
Needle plate is through plate when horizontally slipping on pedestal to form up and down motion to ejecting product, and knife bar is by cutter quickly to pouring
Mouth carries out automatic shearing, so that injecting products replace manually shearing using machine automatization shearing, can save a large amount of manpowers and work
The labor intensity that life produces reduces product cost of labor.
Automatic shearing side gate mechanism passes through gas after needing thimble first to eject moulding pipe in the pipe fitting injection molding mold mould
Cylinder driving cutter could be completed to shear, and in ejection, agreement is not in place and easy to pipe fitting shearing in the case where pipe fitting run-off the straight
The forming surface of pipe fitting is scratched, and mold also needs the position of installation cylinder, increases mold outside dimension, need to select biggish injection molding
Machine increases cost.
Summary of the invention
It is an object of that present invention to provide automatic shearing valve gated mold structures in a kind of mould of plastic pipe, have shearing steady
It is fixed, it is not easy the advantages of scratching formation of tubes face.
In order to achieve the above-mentioned advantages, automatic shearing valve gated mold structure in the mould of plastic pipe provided by the invention, including dynamic model,
Cover half, the core pulling A being slidably connected with the dynamic model and core pulling B, the core pulling A and the core pulling B are moved in dynamic model from die-closed position
De-molding position is moved to from mode locking position while moving die sinking position；
The dynamic model is fixedly connected with corresponding with cast gate for cutting off the blade of cast gate；
The core pulling B drives the plastic pipe towards institute after the core pulling A and the dynamic model are detached from the plastic pipe
State the cast gate that blade is mobile, connect blade cutting with the plastic pipe.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the dynamic model include mavable module core,
First template, the second template, the mavable module core pass through first template be connected and fixed with second template, first template and
The mavable module core is slidably connected, and first template is fixedly connected with the wiper plate for fixed blade, and the wiper plate is also used
In making the core pulling B be detached from the plastic pipe.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, automatic shearing cast gate in the mould
Mould structure further includes upper compound plate, support block, lower compound plate and drag hook, and the upper compound plate is connected and fixed with the cover half, described dynamic
Mould is connected and fixed by the support block and the lower compound plate, and the drag hook is for making first template and second template point
From.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the cover half is fixed with to be used respectively
In the first curved pin, the second curved pin that drive the core pulling A, the core pulling B to move between mode locking position and de-molding position.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the core pulling B be equipped with for
The second curved pin cooperation is faced directly through slot, and described face directly takes off for core pulling B in the core pulling A and the dynamic model through slot
It is remained stationary when from the plastic pipe.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, first template is equipped with and institute
The limit bullet block of drag hook cooperation is stated, the limit bullet block is slidably connected with the drag hook, and the upper surface of the limit bullet block is equipped with
Inclined-plane；
The drag hook includes upper drag hook body and lower drag hook body, and the upper drag hook body is connected and fixed with the cover half, under described
Drag hook body is connected and fixed with second template, the upper drag hook body and the lower drag hook body be respectively equipped with the first fitting projection and
Second fitting projection, first fitting projection and second fitting projection are respectively equipped with limitation face Z1 and limitation face Z2, oblique surface
X1 and oblique surface X2；
The limitation face Z1 is used to limit point between first template and the cover half with the limit bullet block cooperation
Separation is from the limitation face Z2 is used to cooperate with the limit bullet block and limit between first template and second template
Separating distance, the oblique surface X1, which is used to squeeze the inclined-plane, makes the limit bullet block release the cooperation with the limitation face Z2,
The oblique surface X2, which is used to squeeze the inclined-plane, makes the limit bullet block release the cooperation with the limitation face Z1.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the limit bullet block and described the
There is elastic element between one template.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the elastic element is spring.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, first template is equipped with and is used for
Limit the range line mechanism of the separating distance of the first template and the second template.
In mould of the invention in one embodiment of automatic shearing valve gated mold structure, the range line mechanism is bolt.
In the present invention, automatic shearing valve gated mold structure setting wiper plate, wiper plate are fixed in the mould of plastic pipe
Blade, plastic pipe are moved to blade position cutting cast gate with fuse stripping direction under the enclasping force of fuse, and plastic pipe is not
Situations such as will appear inclination, off-position are stable, accurate.
In the present invention, wiper plate is provided with the through-hole for allowing core pulling B to pass through, and the radial dimension of through-hole is less than plastic pipe
Outer diameter, without thimble eject, molding plastic pipe surface does not have thimble trace.
In the present invention, automatic shearing valve gated mold structure no setting is required cylinder driving cutter shearing in the mould of plastic pipe
Cast gate, the outside dimension of mold compared with the existing technology in pipe fitting injection molding mold mould in automatic shearing side gate mechanism want small, fill
With also more labor-saving, and cost is saved.
Detailed description of the invention
Fig. 1 show the structural schematic diagram of automatic shearing side gate mechanism in a kind of existing pipe fitting injection molding mold mould.
The structure that Fig. 2 show automatic shearing valve gated mold structure in the mould of the plastic pipe of first embodiment of the invention is shown
It is intended to.
Fig. 3 show the floor map of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 2.
Fig. 4 show the cross-sectional view of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 2.
Fig. 5 show the cross-sectional view of the other side of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 2.
Fig. 6 show the explosive view of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 2.
Fig. 7 show the dynamic model schematic top plan view of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6.
Fig. 8 show the partial enlarged view at the H of Fig. 7.
Fig. 9 show the structural schematic diagram of the curved pin of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6.
Figure 10 show the structural representation of the core pulling A of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6
Figure.
Figure 11 show the structural representation of the core pulling B of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6
Figure.
Figure 12 show the structural representation of the wiper plate of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6
Figure.
Figure 13 show the structural representation of the limit bullet block of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6
Figure.
Figure 14 show the structural schematic diagram of the drag hook of automatic shearing valve gated mold structure in the mould of the plastic pipe of Fig. 6.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect is proposed according to the present invention, detailed description is as follows.
Fig. 2-6 is referred to, automatic shearing valve gated mold structure includes: in the mould of the plastic pipe of first embodiment of the invention
Upper compound plate 1, cover half 2, dynamic model 3, the core pulling A and core pulling B, drag hook 4, support block 5, lower compound plate 6 being slidably connected with dynamic model 3.
Upper compound plate 1 is connected and fixed with cover half 2.Dynamic model 3 is connected and fixed by support block 5 with lower compound plate 6.Cover half 2 is fixed with point
The first curved pin 2A, the second curved pin 2B that Yong Yu do not drive core pulling A, core pulling B to move between mode locking position and de-molding position.
Fig. 9 is referred to, specifically, cover half 2 includes solid plate 21 and fixed mold core 22, solid plate 21 is connect with fixed mold core 22
It is fixed.First curved pin 2A, the second curved pin 2B are connected and fixed with solid plate 21 respectively, the first curved curved pin 2B difference of pin 2A and second
Equipped with straight-bar C and brace D, brace D extends towards the direction away from mold center and forms angle beta between straight-bar C.Preferably, directly
Angle beta between bar C and brace D is 155 °.
Dynamic model 3 is fixedly connected with corresponding with cast gate for cutting off the blade 7 of cast gate.Further, dynamic model 3 includes dynamic model
Benevolence 31, the first template 32, the second template 33.Mavable module core 31 passes through the first template 32 and is connected and fixed with the second template 33.First mould
Plate 32 is slidably connected with mavable module core 31, and core pulling A and core pulling B are slidably connected with the first template 32.
Fixed mold core 22 and the composition of mavable module core 31 have runner E and type chamber corresponding with plastic pipe 100.Core pulling A and core pulling B exist
De-molding position is moved to from mode locking position while dynamic model 3 is moved to die sinking position from die-closed position.
Referring to Figure 10, core pulling A include that fuse A1, sliding block A2, fuse fixed plate A3, fuse A1 pass through fuse fixed plate
A3 is connected and fixed with sliding block A2, and sliding block A2 is slidably connected with the first template 32, and sliding block A2 is equipped with to be matched with the brace D of the first curved pin 2A
The guide groove A4 of conjunction.
Referring to Figure 11, core pulling B are used to drive 100 court of plastic pipe after core pulling A and dynamic model 3 are detached from plastic pipe 100
It is mobile to blade 7, so that blade 7 is cut off the cast gate connecting with plastic pipe 100.Core pulling B includes that fuse B1, slide block B 2, fuse are solid
Fixed board B3, fuse B1 are connected and fixed by fuse fixed plate B3 with slide block B 2, and slide block B 2 is slidably connected with the first template 32, sliding block
B2 is equipped with for facing directly through slot B4 and leading with what the brace D of the second curved pin 2B cooperated with what the straight-bar C of the second curved pin 2B cooperated
To slot B5.It faces directly and is used to keep taking out before core pulling A and dynamic model 3 are detached from plastic pipe 100 with the cooperation of the straight-bar of core pulling B through slot B4
The state of core B not core pulling.
Referring to Figure 12, the first template 32 is fixedly connected with the wiper plate 321 for fixed blade 7.Wiper plate 321 is also used
In make core pulling B be detached from plastic pipe 100.Wiper plate 321 offers the through-hole 321a passed through for fuse B1, the diameter of through-hole 321a
It is less than the outer diameter of plastic pipe 100 to size.
3-14 referring to Figure 1, drag hook 4 is for separating the first template 32 with the second template 33.Drag hook 4 includes upper drag hook body
41 and lower drag hook body 42, upper drag hook body 41 be connected and fixed with the second template 33, lower drag hook body 42 is connected and fixed with cover half 2.First
Template 32 is equipped with the limit bullet block 322 cooperated with drag hook 4, and limiting has elastic element t between bullet block 322 and the first template 32.
First template 32 is equipped with the range line mechanism of the separating distance for limiting the first template 32 and the second template 33.Preferably, elastic
Element t is spring.Range line mechanism is bolt.
Specifically, upper drag hook body 41 and lower drag hook body 42 are respectively equipped with the first fitting projection 411 and the second fitting projection
421, the first fitting projection 411 and the second fitting projection 421 are respectively equipped with limitation face Z1 and limitation face Z2, oblique surface X1 and tiltedly lead
Face X2.
Limitation face Z1 is used for the separation between lower surface cooperation the first template 32 of limitation and cover half 2 of limit bullet block 322
Distance, limitation face Z2 are used for point between lower surface cooperation the first template 32 of limitation of limit bullet block 322 and the second template 33
Separation is from oblique surface X1 is for limitation of the face Z2 to separating distance between the first template 32 and the second template 33 that lift restrictions, tiltedly
Guide face X2 is for limitation of the face Z1 to separating distance between the first template 32 and cover half 2 that lift restrictions.
Further, limit bullet block 322 has the inclined-plane 322A cooperated with oblique surface X1, X2.Oblique surface X1 squeezes inclined-plane
322A make to limit bullet block 322 release with the cooperation of limitation face Z2 with lift restrictions face Z2 to the first template 32 and the second template 33 it
Between separating distance limitation, the oblique surface X2 squeeze inclined-plane 322A make to limit bullet block 322 release with the cooperation of limitation face Z1 with
Lift restrictions limitation of the face Z1 to separating distance between the first template 32 and solid plate 21.
The lower end of upper drag hook body 41 and the upper end of lower drag hook body 42 are respectively provided with to be made to limit for squeezing limit bullet block 322
Position bullet block 322 oblique surface X1, the X2 mobile towards 32 center of the first template,
The working principle of automatic shearing valve gated mold structure in the mould of plastic pipe 100:
After mold injection, injection molding machine drives dynamic model 3 mobile from die-closed position towards die sinking position, in mobile mistake
Cheng Zhong, the first curved pin 2A drive core pulling A to be positioned against de-molding position movement from mode locking；Until fuse A1 demoulding, upper drag hook
The limitation face Z1 of body 41 and lower surface cooperation the first template 32 of limitation for limiting bullet block 322 are mobile towards die sinking direction, the second mould
It is mobile towards die sinking direction that plate 33 drives mavable module core 31 to continue；Because core pulling B is not demoulded, the second template 33 drives mavable module core 31 to continue
When mobile towards die sinking direction, realize that mavable module core 31 is detached from plastic pipe 100；Mavable module core 31 is detached from the same of plastic pipe 100
When, the oblique surface X2 of lower drag hook body 42 is contacted with the inclined-plane 322A of limit bullet block 322, is continued later in the second template 33 to die sinking
Inclined-plane 322A is squeezed under the drive of direction movement to be made to limit bullet block 322 towards compression in mold to release and limit matching for face Z1
It closes, then under the action of range line mechanism, the second template 33 drives the first template 32 mobile toward die sinking direction, in mobile mistake
Cheng Zhong, the second curved pin 2B drive core pulling B to be positioned against de-molding position movement from mode locking；Under the enclasping force of fuse B1, plastic tube
Part 100 and the cast gate being attached thereto are mobile to 7 direction of blade with core pulling B, pour the cutting of blade 7 with what plastic pipe 100 was connect
Mouthful；Last plastic pipe 100 realizes fuse B1 demoulding under the blocking of wiper plate 321, completes mold against wiper plate 321
Demoulding.
When molding, injection molding machine drives dynamic model 3 mobile from die sinking position towards die-closed position, in the process of moving, drop-down
The limitation face Z2 of coupler body 42 makes the second curved pin 2B driving core pulling B first complete to reset against the lower surface of limit bullet block 322；On then
The oblique surface X1 of drag hook body 41 squeezes inclined-plane 322A after contacting with the inclined-plane 322A of limit bullet block 322 make to limit 322 direction of bullet block
Compression in mold, the face Z2 that lifts restrictions reset mavable module core 31 against limit 322 lower surface of bullet block；It is resetted in mavable module core same
When the first curved pin 2A core pulling A can be driven mobile from de-molding position towards mode locking position until core pulling A reset, completes the conjunction of mold
Mould.
In the present invention, automatic shearing valve gated mold structure setting wiper plate, wiper plate are fixed in the mould of plastic pipe
Blade, plastic pipe are moved to blade position cutting cast gate with fuse stripping direction under the enclasping force of fuse, and plastic pipe is not
Situations such as will appear inclination, off-position are stable, accurate.
In the present invention, wiper plate is provided with the through-hole for allowing core pulling B to pass through, and the radial dimension of through-hole is less than plastic pipe
Outer diameter, without thimble eject, molding plastic pipe surface does not have thimble trace.
In the present invention, automatic shearing valve gated mold structure no setting is required cylinder driving cutter shearing in the mould of plastic pipe
Cast gate, the outside dimension of mold compared with the existing technology in pipe fitting injection molding mold mould in automatic shearing side gate mechanism want small, fill
With also more labor-saving, and cost is saved.
More than, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above reality
Any simple modification, equivalent variations and modification made by example are applied, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. automatic shearing valve gated mold structure in a kind of mould of plastic pipe, including dynamic model, cover half, it is slidably connected with the dynamic model
Core pulling A and core pulling B, the core pulling A and the core pulling B while dynamic model is moved to die sinking position from die-closed position from mode locking
Position is moved to de-molding position, it is characterised in that:
The dynamic model is fixedly connected with corresponding with cast gate for cutting off the blade of cast gate；
The core pulling B drives the plastic pipe towards the knife after the core pulling A and the dynamic model are detached from the plastic pipe
Piece is mobile, and the blade is made to cut off the cast gate connecting with the plastic pipe.
2. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 1, which is characterized in that described dynamic
Mould includes mavable module core, the first template, the second template, and the mavable module core passes through first template and is connected and fixed with second template,
First template is slidably connected with the mavable module core, and first template is fixedly connected with the wiper plate for fixed blade,
The wiper plate is also used to that the core pulling B is made to be detached from the plastic pipe.
3. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 1, which is characterized in that the mould
Interior automatic shearing valve gated mold structure further includes upper compound plate, support block, lower compound plate and drag hook, and the upper compound plate and the cover half connect
Connect fixation, the dynamic model is connected and fixed by the support block and the lower compound plate, the drag hook for make first template with
The second template separation.
4. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 1, which is characterized in that described fixed
It is curved that mould is fixed be respectively used to drive the core pulling A, the core pulling B to move between mode locking position and de-molding position first
Pin, the second curved pin.
5. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 4, which is characterized in that the pumping
Core B is equipped with for facing directly with what the described second curved pin cooperated through slot, described to face directly through slot for core pulling B in the core pulling A
It is remained stationary when being detached from the plastic pipe with the dynamic model.
6. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 3, which is characterized in that described
One template is equipped with the limit bullet block cooperated with the drag hook, and the limit bullet block is slidably connected with the drag hook, the limit bullet
The upper surface of block is equipped with inclined-plane；
The drag hook includes upper drag hook body and lower drag hook body, and the upper drag hook body is connected and fixed with the cover half, the lower drag hook
Body is connected and fixed with second template, and the upper drag hook body and the lower drag hook body are respectively equipped with the first fitting projection and second
Fitting projection, first fitting projection and second fitting projection be respectively equipped with limitation face Z1 and limitation face Z2, oblique surface X1 and
Oblique surface X2；
The limitation face Z1 be used to limit the limit bullet block cooperation separation between first template and the cover half away from
From the limitation face Z2 is used to limit the separation between first template and second template with the limit bullet block cooperation
Distance, the oblique surface X1, which is used to squeeze the inclined-plane, makes the limit bullet block release the cooperation with the limitation face Z2, described
Oblique surface X2, which is used to squeeze the inclined-plane, makes the limit bullet block release the cooperation with the limitation face Z1.
7. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 6, which is characterized in that the limit
There is elastic element between position bullet block and first template.
8. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 7, which is characterized in that the bullet
Property element be spring.
9. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 2, which is characterized in that described
One template is equipped with the range line mechanism of the separating distance for limiting the first template and the second template.
10. automatic shearing valve gated mold structure in the mould of plastic pipe according to claim 9, which is characterized in that described
Range line mechanism is bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385397.5A CN109318452B (en) | 2018-11-20 | 2018-11-20 | In-mold automatic shearing sprue mold structure of plastic pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385397.5A CN109318452B (en) | 2018-11-20 | 2018-11-20 | In-mold automatic shearing sprue mold structure of plastic pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109318452A true CN109318452A (en) | 2019-02-12 |
| CN109318452B CN109318452B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811385397.5A Active CN109318452B (en) | 2018-11-20 | 2018-11-20 | In-mold automatic shearing sprue mold structure of plastic pipe fitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274464A (en) * | 2021-12-30 | 2022-04-05 | 芜湖新磊塑胶科技有限公司 | Injection molding machine for plastic pipe fittings |
| CN114834002A (en) * | 2022-05-25 | 2022-08-02 | 固特科工业塑料件科技(深圳)有限公司 | Injection mold with in-mold gate and in-mold gate cutting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274464A (en) * | 2021-12-30 | 2022-04-05 | 芜湖新磊塑胶科技有限公司 | Injection molding machine for plastic pipe fittings |
| CN114834002A (en) * | 2022-05-25 | 2022-08-02 | 固特科工业塑料件科技(深圳)有限公司 | Injection mold with in-mold gate and in-mold gate cutting method |
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| CN109318452B (en) | 2020-09-11 |
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