CN114571675A - Core pulling structure for core pulling mold - Google Patents
Core pulling structure for core pulling mold Download PDFInfo
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- CN114571675A CN114571675A CN202210213162.8A CN202210213162A CN114571675A CN 114571675 A CN114571675 A CN 114571675A CN 202210213162 A CN202210213162 A CN 202210213162A CN 114571675 A CN114571675 A CN 114571675A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 33
- 238000007493 shaping process Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a structure of loosing core for loose core mould relates to the technical field of gondola water faucet casing production, it includes the mount pad, the seat that slides, the guide, the core pulling head, ejector and protruding shaping piece, mount pad fixed mounting is on loose core mould's cover half, the seat that slides is connected on the mount pad, the guide is installed on loose core mould's movable mould, the ejector slides and installs on the seat that slides, the core pulling head is installed on the seat that slides wherein one side of sliding and the cover is established on the ejector pin, protruding shaping piece is arranged around the axis circumference of ejector pin and is provided with a plurality of. This application has the effect that reduces gondola water faucet casing integrated cost.
Description
Technical Field
The application relates to the technical field of shower shell production, in particular to a core-pulling structure for a core-pulling mold.
Background
At present, the gondola water faucet casing mainly relies on the mode shaping of moulding plastics, the gondola water faucet casing mainly includes handle portion and play water portion, it has the room that holds in the play water portion, the room that holds is used for installing the water knockout drum, still be provided with the opening on a water portion, the opening is used for the intercommunication and holds room and external, the play water panel of gondola water faucet install on the opening and with the water knockout drum intercommunication, during the use, the handle portion passes through hose and external water source intercommunication, can pass through the water knockout drum after water lets in a water portion, utilize the water knockout drum to change out the water mode with the cooperation of play water panel.
Referring to fig. 1, in the related art, a clamping manner is generally adopted between a shower head housing and a water outlet panel, that is, an annular clamping groove is formed in an inner wall of a water outlet portion of a shower head, ends of the clamping groove are communicated, and a circle of the clamping groove is circumferentially arranged around an axis of the water outlet portion, a plurality of limiting protrusions are arranged in the clamping groove, and the limiting protrusions are arranged around the axis of the water outlet portion.
In view of the above-mentioned related technologies, the inventor finds that the shower housing needs to be injection molded by using a core-pulling mold, the core-pulling mold mainly comprises a movable mold, a fixed mold and a core-pulling mechanism, and the core-pulling mechanism generally comprises a core-pulling head connected to the fixed mold in a sliding manner and a guide piece installed on the movable mold. When the movable mould and the fixed mould are closed, the guide piece drives the core-pulling head to move towards the direction of the cavity close to the core-pulling mould, and when the movable mould and the fixed mould are opened, the guide piece drives the core-pulling head to move towards the direction of the cavity far away from the core-pulling mould.
Wherein, referring to fig. 1, the mechanism during operation of loosing core only can the shaping go out and hold the room, can't also one shot forming together with spacing arch, for realizing the joint relation between gondola water faucet casing and the play water panel, need mould plastics the go-between in addition, the protruding setting of shaping is on the go-between inner wall, and the go-between utilizes interference fit or welded mode to install in gondola water faucet casing.
Adopt above-mentioned scheme to need use two sets of moulds, lead to gondola water faucet casing manufacturing cost higher relatively, follow-up still needs artifical equipment go-between and gondola water faucet casing, has increased assembly cost, and people lead to gondola water faucet comprehensive cost too high, consequently need improve.
Disclosure of Invention
For the too high technical problem of the comprehensive cost of improvement correlation technique gondola water faucet casing, this application provides a structure of loosing core for loose core mould.
The application provides a structure of loosing core adopts following technical scheme:
a core pulling structure for a core pulling mold comprises a sliding seat connected to a fixed mold in a sliding mode, a core pulling head arranged at one end, close to a core pulling mold cavity, of the sliding seat, a sliding table connected to the inside of the sliding seat in a sliding mode, a plurality of protruding forming blocks arranged in the core pulling head, an ejector part movably connected with the sliding table and used for driving the protruding forming blocks to move, and a guide part arranged on a movable mold and matched with the sliding table; the core pulling head comprises a first forming part and a second forming part, the first forming part is used for forming a clamping groove, the second forming part is used for forming an accommodating chamber, a plurality of limiting grooves are formed in the first forming part and circumferentially distributed around the axis of the first forming part, a plurality of forming grooves are further formed in the outer wall of the first forming part, one side, close to the cavity of the core pulling mold, of each forming groove is communicated with each limiting groove, and each protruding forming block is inserted into each limiting groove so that the protruding forming block can move along the radial line direction of the core pulling head relative to the core pulling head; the ejector piece is used for driving each protruding forming block to move along the radial line direction of the core pulling head, when each protruding forming block moves to the position with the largest distance from the axis of the core pulling head, the outer wall of each protruding forming block coincides with the outer wall of the first forming portion, and when each protruding forming block moves to the position with the smallest distance from the axis of the core pulling head, the circumscribed circle formed by the surrounding of each protruding forming block is smaller than the inscribed circle formed by the surrounding of each limiting protrusion.
By adopting the technical scheme, when the fixed die and the movable die are closed, the protruding forming blocks are ejected out towards the direction away from the axis of the core drawing head by the ejecting piece, so that the outer wall of each protruding forming block coincides with the outer wall of the first forming part, and at the moment, the part of each protruding forming block away from the axis of the core drawing die can be matched with the forming groove to form the groove for limiting protruding injection molding. When the fixed die and the movable die are opened, the ejector piece is utilized to drive each convex forming block to move towards the direction close to the axis of the core pulling head, so that the circumscribed circle formed by the surrounding of each convex forming block is smaller than the inscribed circle formed by the surrounding of each limit protrusion, and at the moment, when the core pulling head exits from the cavity of the core pulling die, the limit protrusion positioned in the water outlet part cannot interfere with the core pulling mechanism.
Optionally, the ejector piece includes an ejector rod, one end of the ejector rod inserted into the core pulling head is provided with a plurality of third guide grooves, one end of each third guide groove close to the cavity of the core pulling mold is obliquely arranged toward the axis of the ejector rod, one end of each protruding forming block close to the axis of the ejector rod is provided with a sliding block in sliding and clamping connection with the third guide groove, and the cross sections of the third guide grooves and the sliding block form a shape like a Chinese character 'tu'.
Through adopting above-mentioned technical scheme, when the ejector pin removed for the direction that the die cavity was kept away from to the coring head orientation, utilize the cooperation between third guide way and the sliding block, utilize the grafting cooperation between protruding shaping piece and the spacing groove simultaneously, can make the direction that each protruding shaping piece orientation is close to the coring head axis remove. On the contrary, when the ejector rod moves towards the direction close to the cavity relative to the core pulling head, the convex forming blocks can move towards the direction far away from the axis of the core pulling head by utilizing the matching between the third guide groove and the sliding block.
Optionally, the ejection member further includes a sliding table, the sliding table is connected in the sliding seat in a sliding manner, one end of the ejection rod, which is far away from the core-pulling mold cavity, is fixedly connected with the sliding table, and an inclined guide groove for the guide member to be inserted and matched is formed in the sliding table; when the fixed die and the movable die are closed, the guide piece moves towards the direction close to the cavity of the core-pulling die by matching with the inclined guide groove, and when the fixed die and the movable die are opened, the guide piece moves towards the direction far away from the cavity of the core-pulling die by matching with the inclined guide groove.
By adopting the technical scheme, the inclined guide groove which is arranged on the sliding table and can be matched with the guide piece is utilized, so that the fixed die and the movable die can simultaneously control the ejector rod connected with the sliding table to move horizontally in the die opening or die closing process, and the effect of synchronously controlling the ejection or retraction of the convex forming blocks of each part is achieved.
Optionally, stepped holes are formed in one end, close to the core-pulling mold cavity, of the sliding seat, limit bolts are inserted into the stepped holes, bolts of the limit bolts penetrate through the stepped holes and are fixedly connected with one end, close to the core-pulling mold cavity, of the sliding table, and the limit bolts are used for limiting the maximum distance between the sliding table and the end, close to the core-pulling mold cavity, of the sliding seat.
Through adopting above-mentioned technical scheme, when fixed mould and movable mould die sinking, the direction that the ejector piece orientation was kept away from the loose core mould die cavity is removed before the guide can be moved, at this moment, utilize the cooperation between shoulder hole and the spacing bolt, make the seat of sliding can not remove along with the ejector piece at once, thereby make each protruding shaping piece before the core pulling head of retraction, the core pulling head can not the translation withdraw from the die cavity of loose core mould, avoid protruding shaping piece to take place to interfere with fashioned spacing arch, the one end of keeping away from the platform of sliding until spacing bolt blocks with the shoulder hole, the seat of sliding this moment just can with ejector piece synchronous motion, ensure that the loose core mould can withdraw from.
Optionally, the sliding base includes a connecting base and a fixing plate, the sliding table is horizontally movably installed in the connecting base, the fixing plate is installed at one end, close to the cavity of the core-pulling mold, of the connecting base, and each stepped hole is formed in the fixing plate.
Through adopting above-mentioned technical scheme, utilize the connecting seat to realize sliding the platform and slide between the seat and be connected, utilize the fixed plate for the platform orientation that slides when being close to the direction removal of loose core mould die cavity and with the fixed plate butt, the ejecting can drive the seat that slides and move towards the loose core mould die cavity in step, ensures that the core drawing head can extend the die cavity of loose core mould.
Optionally, still include the mount pad, wherein one end of mount pad is installed in the cover half, the other end of mount pad stretches out outside the cover half, but the mount that the seat horizontal migration that slides installs in the mount pad.
By adopting the technical scheme, when the core pulling head needs to be translated to form a longer time, the sliding stroke of the sliding seat can be prolonged by utilizing the mounting seat, the area of the fixed die does not need to be increased, and the material cost of the core pulling die is reduced in a limited way.
Optionally, run through on the mount pad and be provided with the second and dodge the breach, run through on the cover half and be provided with and dodge the communicating first breach of dodging of breach with the second, the first breach of dodging and the second dodge the breach and constitute the groove of dodging that is used for supplying the guide to wear to establish.
Through adopting above-mentioned technical scheme, for the stroke of ensureing the seat that slides to and the smooth nature of activity between platform and the guide slides, the length of guide needs the overlength, utilizes first dodge breach and second to dodge the groove of breach constitution, when can avoiding cover half and movable mould compound die, the lower extreme of guide can not take place to interfere with the mount pad.
Optionally, one end of the mounting seat, which is located outside the fixed mold, is provided with a limiting plate, and the upper side of the limiting plate is located on a horizontal sliding path of the sliding seat.
Through adopting above-mentioned technical scheme, utilize the limiting plate can avoid the seat that slides the accident to break away from the mount pad, avoid the seat that slides to drop from the cover half, ensure the safe in utilization of the seat that slides.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the limiting bulge and the shower head shell can be integrally formed, so that the comprehensive cost of the shower head shell is effectively reduced, and the production efficiency can be improved;
2. the core pulling mold can be transformed and realized on the existing core pulling mold, the whole set of core pulling mold is not required to be replaced, and the equipment upgrading cost is reduced in a limited way.
Drawings
Fig. 1 is a schematic structural view of a shower head housing in the related art;
FIG. 2 is a schematic structural view of an embodiment of the present application as installed on a core back mold;
FIG. 3 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 4 is a schematic view of the mounting of an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a mounting base of an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a sliding seat according to an embodiment of the present application;
FIG. 7 is an exploded view of the glider according to an embodiment of the present application;
FIG. 8 is a schematic structural view of an ejector according to an embodiment of the present application;
FIG. 9 is a schematic view of the connection between the ejector and the sliding seat according to the embodiment of the present application;
FIG. 10 is an exploded view of the ejector member and the shoe according to an embodiment of the present application;
FIG. 11 is a schematic view of a raised shaped block according to an embodiment of the present application;
fig. 12 is a schematic view of the connection of the protrusion forming block, the ejector and the core pull head according to the embodiment of the present application.
In the figure, 1, a fixed die; 11. mounting grooves; 12. caulking grooves; 13. a first avoidance notch; 2. moving the mold; 3. a mounting seat; 31. a connecting plate; 32. a side stopper rod; 33. a stabilizing block; 331. a second avoidance gap; 34. a limiting plate; 35. a first guide groove; 4. a sliding seat; 41. a connecting seat; 411. a base plate; 412. a side limiting block; 413. a second guide groove; 42. a fixing plate; 421. a stepped hole; 422. countersinking; 423. perforating holes; 5. a guide member; 6. core pulling head; 61. fixing the connecting plate; 62. a main body part; 63. a first molding section; 631. a limiting groove; 632. forming a groove; 64. a second molding section; 7. ejecting the part; 71. a sliding table; 711. a limiting convex edge; 712. an inclined guide groove; 72. ejecting the rod; 721. a straight section; 722. a circular table section; 73. a third guide groove; 8. forming a convex forming block; 81. a sliding block; 9. a limit bolt; 10. a shower head housing; 101. a handle part; 102. a water outlet part; 103. a housing chamber; 104. a clamping groove; 105. a limiting bulge; 106. and (7) connecting rings.
Detailed Description
The present application is described in further detail below with reference to fig. 2-12.
The utility model provides a structure of loosing core for loose core mould, refer to fig. 1 and fig. 2, including mount pad 3, the seat of sliding 4, the guide 5, the head of loosing core 6, ejecting 7 and protruding shaping piece 8, mount pad 3 fixed mounting is on loose core mould's cover half 1, the seat of sliding 4 slides and connects on mount pad 3, guide 5 installs on loose core mould's movable mould 2, ejecting 7 slides and installs on the seat of sliding 4, the head of loosing core 6 is installed and is established on ejecting pole 72 on the seat of sliding 4 wherein one side and cover, protruding shaping piece 8 is arranged around the axis circumference of ejecting pole 72 and is provided with a plurality of.
Referring to fig. 3 and 4, the mounting seat 3 includes a connecting plate 31, two side limiting rods 32 and two stabilizing blocks 33, one end of the bottom connecting plate 31 is mounted in the fixed mold 1 by means of bolt locking, one end of each of the two side limiting rods 32 is mounted in the fixed mold 1 by means of bolt locking, the stabilizing block 33 is mounted on the side surface of the fixed mold 1 by means of bolt locking, the stabilizing blocks 33 are fixedly connected with the side limiting rods 32 and one end of the bottom connecting plate 31 away from the cavity of the core-pulling mold, the limiting plates 34 are mounted on one side of the stabilizing block 33 away from the fixed mold 1 by means of bolt locking, and the upper sides of the limiting plates 34 extend out of the surface of the stabilizing blocks 33.
Referring to fig. 3 and 4, a mounting groove 11 is provided on the upper side of the fixed mold 1, one end of each side limiting rod 32 connected to the fixed mold 1 is located on the upper side of the mounting groove 11, and the two side limiting rods 32 are respectively located on two long sides of the mounting groove 11, so that the bottom surfaces of the side limiting rods 32 and the bottom surface of the mounting groove 11 can cooperate to form a first guide groove 35 for limiting the moving direction of the sliding seat 4.
Still be provided with the caulking groove 12 in the fixed mould 1, the caulking groove 12 is located the bottom of mounting groove 11, and the upside of caulking groove 12 and the communicating of mounting groove 11, and the one end that end connecting plate 31 and fixed mould 1 are connected is located the caulking groove 12, and when end connecting plate 31 is connected with caulking groove 12, the upside of end connecting plate 31 stretches out outside the bottom of mounting groove 11. The side limiting rod 32 and the bottom connecting plate 31 are made of materials with high surface smoothness and strong wear resistance, and when the sliding seat 4 is installed on the fixed die 1, the sliding seat 4 is mainly contacted with the bottom connecting plate 31 and the side limiting rod 32, so that the wear speed of the sliding seat 4 is reduced.
Referring to fig. 3 and 4, a first avoidance notch 13 is further provided on a side surface of the fixed mold 1, an upper side of the first avoidance notch 13 communicates with a bottom surface of the mounting groove 11, a second avoidance notch 331 is provided on a side of the stabilizing block 33 connected to a side edge of the fixed mold 1, and an upper side of the second avoidance notch 331 communicates with an upper surface of the stabilizing block 33. When the mount pad 3 is installed on the cover half 1, first dodge breach 13 and second dodge breach 331 and communicate with each other and form in order to make up and dodge the groove, when movable mould 2 and cover half 1 compound die, set up the guide 5 on the movable mould 2 can avoid taking place to interfere with mount pad 3 through wearing to establish dodging the groove.
Referring to fig. 5 and 6, the sliding seat 4 includes a connecting seat 41 and a fixing plate 42, the fixing plate 42 is installed on one end of the connecting seat 41 close to the core back mold cavity, and the core back head 6 is installed on one end of the fixing plate 42 far from the connecting seat 41; wherein, a fixed connecting plate 61 is arranged on one end of the core back head 6 far away from the core back mould cavity, and the fixed plate 42 is arranged on the fixed connecting plate 61 by a bolt locking way.
Referring to fig. 2 and 5, the sliding seat 4 includes a bottom plate 411 and a side limiting block 412 which are integrally formed, the bottom plate 411 is installed in the installation seat 3, two long sides of the bottom plate 411 respectively extend into two first guiding grooves 35, and the sliding direction of the sliding seat 4 in the installation seat 3 can be limited by the cooperation between the first guiding grooves 35 and the bottom plate 411; the two fixing plates 42 are respectively disposed on two long sides of the bottom plate 411, and a second guide groove 413 is disposed on one opposite side of the two fixing plates 42, and the ejector 7 is connected to the sliding seat 4 through the second guide groove 413 in a sliding manner.
Referring to fig. 7 and 8, the ejector 7 includes a sliding table 71 and an ejector rod 72, the ejector rod 72 is installed on one end of the sliding table 71 close to the cavity of the core back mold, and the ejector rod 72 is inserted into the core back head 6; wherein, all be provided with spacing protruding edge 711 on the two long avris in the bottom of platform 71 that slide, when ejecting 7 installs on platform 71 slides, two spacing protruding edges 711 slide with twice second guide way 413 respectively and be connected, and slide platform 71 and be close to the side of loose core mould die cavity and can meet with fixed plate 42.
An inclined guide groove 712 is further formed in the sliding table 71, the guide piece 5 is a guide rod which is matched with the inclined guide groove 712 in an inserted mode, the lower end of the guide rod is arranged in an inclined mode towards the direction far away from the core-pulling mold cavity, and the guide rod is in transition or clearance fit with the inclined guide groove 712. When the fixed die 1 and the movable die 2 are closed, the lower end of the guide rod can begin to be inserted into the inclined guide groove 712, the guide rod can drive the sliding table 71 to move horizontally towards the direction close to the cavity of the core-pulling die, and when the fixed die 1 and the movable die 2 are closed, the guide rod can drive the sliding table 71 to move horizontally towards the direction far away from the cavity of the core-pulling die.
Referring to fig. 9, a plurality of stepped holes 421 are formed in the fixing plate 42, each stepped hole 421 includes a counter bore 422 and a through hole 423 which are coaxially formed, the inner diameter of the counter bore 422 is larger than the through hole 423, a limit bolt 9 is inserted into each stepped hole 421, a nut of the limit bolt 9 is clamped in the counter bore 422 and can translate along the axial direction of the counter bore 422, and a bolt body of the limit bolt 9 penetrates through the through hole 423 and is fixedly connected with the sliding table 71; wherein, when the core-pulling head 6, the sliding seat 4 and the ejecting member 7 are connected as a whole, the fixing plate 61 blocks the counter sink 422.
When cover half 1 and movable mould 2 die sinking, guide 5 at first can order about ejecting 7 and move towards the direction of keeping away from the loose core mould die cavity, and this moment, seat 4 that slides remains motionless, and until the nut of spacing bolt 9 and counter sink 422 are close to the one end joint of wearing to establish hole 423, at this moment, guide 5 that continues to move can drive seat 4 that slides and move towards the direction of keeping away from the loose core mould die cavity, reaches the effect of extracting the loose core mould die cavity with loose core head 6. When the fixed die 1 and the movable die 2 are closed, the guide piece 5 firstly drives the ejector piece 7 to move towards the direction close to the cavity of the core-pulling die, at the moment, the sliding seat 4 is kept still until the sliding table 71 is abutted against the fixed plate 42, at the moment, the guide piece 5 which continuously moves drives the sliding seat 4 to move close to the direction close to the cavity of the core-pulling die, and the effect of inserting the core-pulling head 6 into the cavity of the core-pulling die is achieved.
Referring to fig. 10 and 11, the ejector rod 72 includes a straight section 721 and a circular truncated cone section 722 which are integrally formed, one end of the straight section 721 is fixedly connected with the sliding table 71, and the other end of the straight section 721 is connected with a side surface with a larger area of the circular truncated cone section 722; a plurality of third guide grooves 73 are formed in the outer wall of the ejector rod 72 and are circumferentially arranged around the axis of the ejector rod 72 at equal intervals, each third guide groove 73 extends along the length direction of the ejector rod 72, and one end of each third guide groove 73 is communicated with one end of the truncated cone section 722, which is far away from the straight section 721.
A plurality of limiting grooves 631 are formed in the core pulling head 6, two ends of each limiting groove 631 are respectively communicated with the inner wall and the outer wall of the core pulling head 6, and when the ejector rod 72 is inserted into the core pulling head 6, each third guide groove 73 is respectively communicated with each limiting groove 631.
The plurality of convex forming blocks 8 are arranged, a sliding block 81 is arranged at one end of each convex forming block 8 close to the axis of the ejector rod 72, each sliding block 81 is in sliding clamping connection with each third guide groove 73, and one end of each convex forming block 8 far away from the axis of the ejector rod 72 is respectively inserted into each limiting groove 631; wherein, the end of each third guide groove 73 far away from the fixed connecting plate 61 is inclined towards the direction close to the axis of the ejector rod 72, the cross section of each third guide groove 73 and each sliding block 81 is in a shape like a Chinese character 'tu', so that when the protrusion forming block 8 is installed on the ejector rod 72, the protrusion forming block 8 can translate along the length direction of the third guide groove 73 relative to the ejector rod 72, and when the ejector rod 72 translates relative to the core drawing head 6, each protrusion forming block 8 can move along the radial line direction of the core drawing head 6 relative to the core drawing head 6.
Referring to fig. 12, the core back head 6 includes a main body 62, a first forming portion 63, and a second forming portion 64 sequentially arranged along an axial direction of the core back head 6, two ends of the main body 62 are respectively connected to the fixing plate 61 and the first forming portion 63, when the core back mold is used for injection molding, the first forming portion 63 and the second forming portion 64 are inserted into a cavity of the core back mold, the first forming portion 63 is used for forming the clamping groove 104 of the water outlet portion 102, and the second forming portion 64 is used for forming the accommodating chamber 103 of the water outlet portion 102.
The positions of the limit grooves 631 are located on one side of the first forming portion 63 away from the main body portion 62, and a plurality of forming grooves 632 are further disposed on the outer wall of the first forming portion 63 and at positions close to the main body portion 62, and one side of each forming groove 632 away from the main body portion 62 is respectively communicated with each limit groove 631; when the ejector rod 72 is completely ejected into the core-pulling head 6, one side surface of each convex forming block 8, which is far away from the ejector rod 72, coincides with the outer wall of the first forming part 63, and when the distance between the sliding table 71 and the fixed connection plate 61 reaches the maximum, the circumscribed circle formed by the enclosed convex forming blocks 8 is smaller than the inscribed circle formed by the enclosed limiting convex 105.
The implementation principle of the embodiment of the application is as follows: when loose core mold's cover half 1 and movable mould 2 compound die, guide 5 can drive ejecting 7 and remove towards the die cavity that is close to forming die, at this in-process, each one end that the ejecting pole 72 was kept away from to protruding shaping piece 8 also can stretch out slowly outside each way spacing groove 631, meet with fixed plate 42 up to the platform 71 that slides, at this moment, each protruding shaping piece 8 can enclose with each way shaping groove 632 cooperation respectively and close the cell body that forms to be used for supplying spacing protruding 105 shaping, and, ejecting 7 can begin to drive core-pulling head 6 and remove towards the die cavity that is close to forming die together.
When the fixed die 1 and the movable die 2 of the core pulling die are opened, the guide piece 5 can drive the ejector piece 7 to move towards the cavity far away from the forming die, in the process, one end, far away from the ejector rod 72, of each convex forming block 8 can also be slowly retracted into each limiting groove 631, the distance between the sliding table 71 and the fixing plate 42 is the largest, at the moment, each convex forming block 8 can be completely retracted into the first forming part 63, and the ejector piece 7 can start to drive the core pulling head 6 to move towards the cavity far away from the forming die.
The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The core pulling structure for the core pulling mold is characterized by comprising a sliding seat (4) connected to a fixed mold (1) in a sliding mode, a core pulling head (6) installed at one end, close to a core pulling mold cavity, of the sliding seat (4), a sliding table (71) connected to the sliding seat (4) in the sliding mode, a plurality of protruding forming blocks (8) arranged in the core pulling head (6), an ejector (7) movably connected with the sliding table (71) and used for driving the protruding forming blocks (8) to move, and a guide piece (5) installed on a movable mold (2) and matched with the sliding table (71); the core pulling head (6) comprises a first forming portion (63) used for forming a clamping groove (104) and a second forming portion (64) used for forming an accommodating chamber (103), a plurality of limiting grooves (631) which are circumferentially distributed around the axis of the first forming portion (63) are formed in the first forming portion (63), a plurality of forming grooves (632) are further formed in the outer wall of the first forming portion (63), one side, close to a core pulling mold cavity, of each forming groove (632) is communicated with each limiting groove (631), and each protrusion forming block (8) is inserted into each limiting groove (631) to enable the protrusion forming block (8) to move along the radial line direction of the core pulling head (6) relative to the core pulling head (6); the ejector piece (7) is used for driving each protrusion forming block (8) to move along the radial line direction of the core drawing head (6), when each protrusion forming block (8) moves to the position which is the largest away from the axis of the core drawing head (6), the outer wall of each protrusion forming block (8) is overlapped with the outer wall of the first forming part (63), and when each protrusion forming block (8) moves to the position which is the smallest away from the axis of the core drawing head (6), the circumscribed circle formed by the encircling of each protrusion forming block (8) is smaller than the inscribed circle formed by the encircling of each limiting protrusion (105).
2. The core pulling structure for a core pulling mold according to claim 1, wherein the ejector (7) comprises an ejector rod (72), one end of the ejector rod (72) inserted into the core pulling head (6) is provided with a plurality of third guide grooves (73), one end of each third guide groove (73) close to a cavity of the core pulling mold is obliquely arranged towards an axis of the ejector rod (72), one end of each convex forming block (8) close to the axis of the ejector rod (72) is provided with a sliding block (81) in sliding and clamping connection with the third guide groove (73), and cross sections of each third guide groove (73) and the sliding block (81) are formed in a shape of a convex shape.
3. The core pulling structure for a core pulling mold according to claim 2, wherein the ejector (7) further comprises a sliding table (71), the sliding table (71) is connected in a sliding manner in the sliding seat (4), one end of the ejector rod (72) far away from the cavity of the core pulling mold is fixedly connected with the sliding table (71), and an inclined guide groove (712) for the guide (5) to be inserted and matched is arranged on the sliding table (71); when the fixed die (1) and the movable die (2) are closed, the guide piece (5) is matched with the inclined guide groove (712) to move towards the direction close to the core-pulling die cavity, and when the fixed die (1) and the movable die (2) are opened, the guide piece (5) is matched with the inclined guide groove (712) to move towards the direction far away from the core-pulling die cavity.
4. The core pulling structure for the core pulling mold according to claim 1, wherein a stepped hole (421) is formed in one end, close to the core pulling mold cavity, of the sliding seat (4), a limiting bolt (9) is inserted into each stepped hole (421), a bolt body of each limiting bolt (9) penetrates through the stepped hole (421) and is fixedly connected with one end, close to the core pulling mold cavity, of the sliding table (71), and the limiting bolt (9) is used for limiting the maximum distance between the sliding table (71) and one end, close to the core pulling mold cavity, of the sliding seat (4).
5. Core pulling structure for a core pulling mold according to claim 4, wherein the sliding base (4) comprises a connecting base (41) and a fixing plate (42), the sliding base (71) is horizontally movably mounted in the connecting base (41), the fixing plate (42) is mounted on one end of the connecting base (41) close to the cavity of the core pulling mold, and each stepped hole (421) is arranged on the fixing plate (42).
6. The core pulling structure for the core pulling mold according to claim 1, further comprising a mounting seat (3), wherein one end of the mounting seat (3) is installed in the fixed mold (1), the other end of the mounting seat (3) extends out of the fixed mold (1), and the sliding seat (4) is horizontally movably installed in the mounting seat (3).
7. The core pulling structure for the core pulling mold according to claim 6, wherein a second avoiding notch (331) is arranged on the mounting seat (3) in a penetrating manner, a first avoiding notch (13) communicated with the second avoiding notch (331) is arranged on the fixed mold (1) in a penetrating manner, and the first avoiding notch (13) and the second avoiding notch (331) form an avoiding groove for the guide member (5) to penetrate through.
8. The core pulling structure for a core pulling mold according to claim 6, wherein a limiting plate (34) is arranged at one end of the mounting seat (3) located outside the fixed mold (1), and the upper side of the limiting plate (34) is located on a horizontal sliding path of the sliding seat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210213162.8A CN114571675B (en) | 2022-03-04 | 2022-03-04 | Core pulling structure for core pulling mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210213162.8A CN114571675B (en) | 2022-03-04 | 2022-03-04 | Core pulling structure for core pulling mold |
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| CN114571675B CN114571675B (en) | 2024-02-09 |
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| CN114571675B (en) | 2024-02-09 |
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