CN214687467U - Built-in preforming loose core mould - Google Patents

Built-in preforming loose core mould Download PDF

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Publication number
CN214687467U
CN214687467U CN202120579516.1U CN202120579516U CN214687467U CN 214687467 U CN214687467 U CN 214687467U CN 202120579516 U CN202120579516 U CN 202120579516U CN 214687467 U CN214687467 U CN 214687467U
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China
Prior art keywords
core
mold
lifting frame
die
guide sleeve
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CN202120579516.1U
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Chinese (zh)
Inventor
洪远清
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Suzhou Hongxinsheng Machinery Technology Co ltd
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Suzhou Hongxinsheng Machinery Technology Co ltd
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Abstract

The utility model relates to the technical field of mold, in particular to a built-in pre-forming core-pulling mold, which solves the defects in the prior art, and comprises symmetrically arranged support legs, wherein the tops of the two support legs are fixedly provided with a lower mold, the interior of the lower mold is provided with a mold core, the interior of the mold core is provided with a mold cavity, the interior of the mold core is respectively provided with a first mold core, a second mold core and a third mold core in a sliding way, the bottom of the lower mold is fixedly provided with a cylinder through bolts, the interior of the cylinder is provided with a piston rod, the other end of the piston rod is connected with a lifting frame through a hexagon screw, the lifting frame drives the mold core directly connected with the lifting frame to be drawn out after the cylinder acts, meanwhile, the two sides automatically pull core through the effects of the wedge block and the screw rod, and only one driving source is adopted for synchronously pulling core, the manufacturing cost is saved, and the demoulding efficiency is improved.

Description

Built-in preforming loose core mould
Technical Field
The utility model relates to the technical field of mold, especially, relate to a built-in preforming loose core mould.
Background
The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.
The mould in the prior art has the following defects: firstly, when a plurality of cores are arranged in the mold, a plurality of driving sources are needed to act on the core pulling of each core in sequence, so that the manufacturing cost is high, and the demolding efficiency is low; and secondly, the ejector rod cannot be automatically reset after being ejected, so that the condition of die collision is easy to occur, and equipment is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a built-in preforming loose core mould.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a built-in preforming core pulling mold comprises symmetrically arranged support legs, wherein lower molds are fixedly mounted at the tops of the two support legs, mold inserts are arranged inside the lower molds, cavities are formed inside the mold inserts, a first mold core, a second mold core and a third mold core are respectively arranged inside the mold inserts in a sliding mode, an air cylinder is fixedly mounted at the bottom of each lower mold through a bolt, a piston rod is arranged inside each air cylinder, the other end of each piston rod is connected with a lifting frame through a hexagon screw, the top of each lifting frame is fixedly connected with the corresponding first mold core through a screw, a wedge block is fixedly connected at one end of each lifting frame, and a rack is welded at the top of the other end of each lifting frame;
one end of the second core is fixedly provided with a U-shaped rod through a countersunk bolt, the U-shaped rod is in sliding fit with the wedge block, one end of the third core is fixedly provided with a screw rod, a nut is sleeved outside the screw rod, a gear is sleeved outside the nut, and the gear is meshed with the rack.
Preferably, a top plate is slidably mounted between the two support legs, a through groove penetrating through the top plate is formed in the top plate, and the cylinder penetrates through the through groove.
Preferably, the top of roof fixed mounting has symmetrical arrangement's ejector pin, the ejector pin extends to the inside of die cavity, and the outside cover of ejector pin is equipped with reset spring, reset spring's both ends respectively with lower mould and roof fixed connection.
Preferably, one side of the wedge block is provided with a chute, and the U-shaped rod is in sliding connection with the chute.
Preferably, the mold core is respectively provided with a first mounting hole, a second mounting hole and a third mounting hole, the first mounting hole, the second mounting hole and the third mounting hole are respectively internally and fixedly provided with a first guide sleeve, a second guide sleeve and a third guide sleeve through screws, and the first mold core, the second mold core and the third mold core are respectively movably sleeved inside the first guide sleeve, the second guide sleeve and the third guide sleeve.
Preferably, an inner groove is formed in the lower die, and the lifting frame, the wedge block, the U-shaped rod and the rack are located in the inner groove.
The utility model has the advantages that:
1. the utility model discloses in through the setting of crane, cylinder, voussoir, screw rod, gear and rack isotructure, after the cylinder action, the crane area is taken the core of lug connection with it out, and both sides are simultaneously loosed core through the effect of voussoir and screw rod is automatic, only adopt a driving source to loose core in step, have saved manufacturing cost, have improved drawing of patterns efficiency.
2. The utility model discloses in through reset spring's setting, add reset spring in the outside of ejector pin, accomplish ejecting back at the product for the driving source stop action that promotes the roof, the ejector pin then can automatic re-setting, and the condition of avoiding hitting the mould takes place, has effectively protected equipment.
Drawings
Fig. 1 is a front sectional view of a built-in preformed core-pulling mold according to the present invention;
fig. 2 is the utility model provides a reference numeral A department enlarger of built-in preforming loose core mould.
In the figure: the die comprises a support leg 1, a lower die 2, a die core 3, a die cavity 31, a first guide sleeve 4, a first core 41, a second guide sleeve 5, a second core 51, an inner groove 6, a lifting frame 7, a wedge block 8, a U-shaped rod 9, a rack 10, an air cylinder 11, a piston rod 12, a push rod 13, a top plate 14, a through groove 15, a return spring 16, a third guide sleeve 17, a third core 171, a gear 18 and a screw 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a built-in preforming core-pulling mold comprises symmetrically arranged support legs 1, a lower mold 2 is fixedly installed at the tops of the two support legs 1, a mold core 3 is arranged inside the lower mold 2, a mold cavity 31 is formed inside the mold core 3, a first mold core 41, a second mold core 51 and a third mold core 171 are respectively arranged inside the mold core 3 in a sliding manner, an air cylinder 11 is fixedly installed at the bottom of the lower mold 2 through bolts, a piston rod 12 is arranged inside the air cylinder 11, the other end of the piston rod 12 is connected with a lifting frame 7 through a hexagon screw, the top of the lifting frame 7 is fixedly connected with the first mold core 41 through a screw, a wedge block 8 is fixedly connected at one end of the lifting frame 7, and a rack 10 is welded at the top of the other end of the lifting frame 7; one end of the second core 51 is fixed with a U-shaped rod 9 through a countersunk bolt, the U-shaped rod 9 is in sliding fit with the wedge block 8, one end of the third core 171 is fixed with a screw rod 19, the outside of the screw rod 19 is sleeved with a nut, the outside of the nut is sleeved with a gear 18, and the gear 18 is meshed with the rack 10.
Wherein, through the crane 7, the cylinder 11, voussoir 8, the screw rod 19, the setting of structures such as gear 18 and rack 10, after cylinder 11 moves, crane 7 takes the core of lug connection with it to take out, both sides are automatic to be loosed the core through voussoir 8 and screw rod 19's effect simultaneously, only adopt a driving source to carry out the synchronous core of loosing core, manufacturing cost has been saved, demolding efficiency has been improved, setting through reset spring 16, reset spring 16 is add in the outside of ejector pin 13, after the product is accomplished ejecting, a driving source stop motion for promoting roof 14, ejector pin 13 then can automatic re-setting, avoid hitting the condition emergence of mould, equipment has effectively been protected.
A top plate 14 is slidably mounted between the two support legs 1, a through groove 15 penetrating through the top plate 14 is formed in the top plate 14, the air cylinder 11 penetrates through the through groove 15, ejector rods 13 which are symmetrically arranged are fixedly mounted at the top of the top plate 14, the ejector rods 13 extend into the cavity 31, a return spring 16 is sleeved outside the ejector rods 13, two ends of the return spring 16 are respectively fixedly connected with the lower die 2 and the top plate 14, a chute is formed in one side of the wedge block 8, the U-shaped rod 9 is slidably connected with the chute, a first mounting hole, a second mounting hole and a third mounting hole are respectively formed in the die core 3, a first guide sleeve 4, a second guide sleeve 5 and a third guide sleeve 17 are respectively fixed in the first mounting hole, the second mounting hole and the third mounting hole through screws, a first die core 41, a second die core 51 and a third die core 171 are respectively movably sleeved in the first guide sleeve 4, the second guide sleeve 5 and the third guide sleeve 17, an inner groove 6 is formed in the lower die 2, and the lifting frame 7, the wedge block 8, the U-shaped rod 9 and the rack 10 are located in the inner groove 6.
In the embodiment, in operation, after a product in the cavity 31 is molded, the cylinder 11 acts, the piston rod 12 of the cylinder 11 pulls the lifting frame 7 to move downwards, the lifting frame 7 drives the first core 41 rigidly connected with the lifting frame to slide and be drawn out, meanwhile, the lifting frame 7 also drives the wedge blocks 8 and the racks 10 at two ends to move, the U-shaped rod 9 and the second core 51 slide rightwards under the extrusion of the wedge blocks 8, after the rack 10 acts on the gear 18, the gear 18 drives the nut inside to rotate, and under the action of the nut, the screw rod 19 moves along the nut, so that the third core 171 is pulled to slide leftwards, and the three cores are simultaneously drawn out synchronously;
further, after the core is drawn out, the driving source below the top plate 14 is started to push the top plate 14 and the ejector rod 13 to move, so that the product inside the die core 3 is ejected out, after the ejection is finished, the driving source stops acting, and the top plate 14 is pushed by the return spring 16 to slide and reset.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A built-in preforming core-pulling mold comprises symmetrically arranged support legs (1), a lower mold (2) is fixedly installed at the tops of the two support legs (1), a mold core (3) is arranged inside the lower mold (2), a mold cavity (31) is formed inside the mold core (3), it is characterized in that a first mold core (41), a second mold core (51) and a third mold core (171) are respectively arranged in the mold core (3) in a sliding way, the bottom of the lower die (2) is fixedly provided with a cylinder (11) through a bolt, a piston rod (12) is arranged inside the cylinder (11), the other end of the piston rod (12) is connected with a lifting frame (7) through a hexagon screw, the top of the lifting frame (7) is fixedly connected with the first core (41) through a screw, one end of the lifting frame (7) is fixedly connected with a wedge block (8), and the top of the other end of the lifting frame (7) is welded with a rack (10);
one end of the second mold core (51) is fixed with a U-shaped rod (9) through a countersunk bolt, the U-shaped rod (9) is in sliding fit with the wedge block (8), one end of the third mold core (171) is fixed with a screw rod (19), a nut is sleeved outside the screw rod (19), a gear (18) is sleeved outside the nut, and the gear (18) is meshed with the rack (10) and is connected with the wedge block.
2. The internal preforming core pulling mold according to claim 1, wherein a top plate (14) is slidably installed between the two support legs (1), a through groove (15) penetrating through the top plate (14) is formed in the top plate (14), and the air cylinder (11) penetrates through the through groove (15).
3. The internal preforming core pulling mold according to claim 2, wherein the top of the top plate (14) is fixedly provided with symmetrically arranged ejector rods (13), the ejector rods (13) extend to the inside of the cavity (31), a return spring (16) is sleeved outside the ejector rods (13), and two ends of the return spring (16) are respectively and fixedly connected with the lower mold (2) and the top plate (14).
4. The internal preforming core pulling die of claim 1, wherein one side of the wedge block (8) is provided with a chute, and the U-shaped rod (9) is slidably connected with the chute.
5. The internal preformed core-pulling die as claimed in claim 1, wherein the die core (3) is provided with a first mounting hole, a second mounting hole and a third mounting hole, the first mounting hole, the second mounting hole and the third mounting hole are internally and respectively fixed with a first guide sleeve (4), a second guide sleeve (5) and a third guide sleeve (17) through screws, and the first die core (41), the second die core (51) and the third die core (171) are respectively movably sleeved inside the first guide sleeve (4), the second guide sleeve (5) and the third guide sleeve (17).
6. The internal preforming core pulling mold according to claim 1, wherein an internal groove (6) is formed in the lower mold (2), and the lifting frame (7), the wedge block (8), the U-shaped rod (9) and the rack (10) are located in the internal groove (6).
CN202120579516.1U 2021-03-22 2021-03-22 Built-in preforming loose core mould Active CN214687467U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120579516.1U CN214687467U (en) 2021-03-22 2021-03-22 Built-in preforming loose core mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120579516.1U CN214687467U (en) 2021-03-22 2021-03-22 Built-in preforming loose core mould

Publications (1)

Publication Number Publication Date
CN214687467U true CN214687467U (en) 2021-11-12

Family

ID=78572198

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120579516.1U Active CN214687467U (en) 2021-03-22 2021-03-22 Built-in preforming loose core mould

Country Status (1)

Country Link
CN (1) CN214687467U (en)

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