CN210679526U

CN210679526U - Outer core-pulling mechanism for fixed die side inclined guide pillar of injection mold

Info

Publication number: CN210679526U
Application number: CN201920677423.5U
Authority: CN
Inventors: 李过
Original assignee: Taizhou Kaihua Automobile Mould Co ltd
Current assignee: Taizhou Kaihua Automobile Mould Co ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-06-05
Anticipated expiration: 2029-05-13

Abstract

An injection mold fixed die side inclined guide post external core pulling mechanism comprises an upper compound plate and a lower compound plate, wherein a fixed die plate is arranged below the upper compound plate, a through hole is formed in the lower compound plate, a die pin, an upper ejector plate, a lower ejector plate and an ejector pin are arranged on the lower compound plate, a movable die plate is arranged on a backing plate arranged on the die pin, a plastic part is arranged between the movable die plate and the fixed die plate, a side hole is formed in the side wall of the plastic part, a side core pulling slider is arranged below the fixed die plate, an inclined guide hole is formed in the side core pulling slider, a convex block is arranged on one side of the side core pulling slider, a side pulling hole is formed in the fixed die plate, an inclined guide post and a locking module are arranged in the backing plate, the inclined guide post is matched with the inclined guide hole, the locking module is fixed with the backing plate through a fastener, the locking module is matched with the outer wall of the side core pulling slider, a spring groove is formed below the movable die plate, the upper end of the distance rivet passes through the through hole and the spring groove to be connected with the movable template.

Description

Outer core-pulling mechanism for fixed die side inclined guide pillar of injection mold

Technical Field

The utility model relates to an injection mold especially relates to the mechanism of loosing core outside the oblique guide pillar of injection mold cover half.

Background

In some working of plastics, people require very high (for example, the decoration of car outside, cell phone case etc.) to the surface of outward appearance, if there is the side opening in the side system of product, prior art adopts (as shown in fig. 5) fixed die plate 1 ' and movable mould board 2 ' usually, set up oblique guide pillar 3 ' in the fixed die plate, set up side loose core slider 4 ' on the movable mould board, it has oblique guide hole 5 ' to open in the side loose core slider, when the die sinking, through the oblique guide hole cooperation of oblique guide pillar and side loose core slider, drive the side loose core slider and move the side opening of taking out the working of plastics to the outside, the shortcoming that this structure exists is: because it is direct to set up the side slider of loosing core at the working of plastics lateral wall, the fixed die plate can't wrap the outer wall of working of plastics completely, produce the parting line between fixed die plate and the side slider of loosing core, make injection moulding's working of plastics outer wall be located the fixed die plate and the side slider of loosing core department leave the weld line after the typing, thereby influence the appearance of working of plastics, consequently, people will incline the slider of loosing core and set up in fixed die plate one side, make the fixed die plate can wrap the outer wall of working of plastics completely, and drive the side slider of loosing core through the hydro-cylinder and take out the side opening of working of plastics, adopt the hydro-cylinder structure, the manufacturing cost of mould has been improved on the one hand, on the other hand will drive the side slider of.

Disclosure of Invention

The utility model aims at overcoming the shortcoming that prior art exists, provide one kind and avoid working of plastics surface to leave the weld line, guarantee that the working of plastics appearance is pleasing to the eye, reduce mould manufacturing cost, improve production efficiency's injection mold cover half skew guide pillar mechanism of loosing core outward.

The utility model discloses the technical scheme of the mechanism of loosing core outside the oblique guide pillar of injection mold cover half is: the injection molding machine comprises an upper compound plate and a lower compound plate, wherein a fixed template is arranged below the upper compound plate, a through hole is formed in the lower compound plate, mold feet are arranged on the lower compound plate, an upper ejector plate, a lower ejector plate and an ejector pin are arranged on the lower compound plate between the mold feet, an ejector pin of an injection machine penetrates through the through hole to be contacted with the lower ejector plate, a backing plate is arranged on the mold feet, a movable template is arranged on the backing plate, an injection molding plastic piece is arranged between the movable template and the fixed template, side holes are formed in the side wall of the plastic piece, a side core pulling slider is arranged below the fixed template, the upper end of the side core pulling slider is in sliding fit with the fixed template, an inclined guide hole is formed in the side core pulling slider, a convex block is formed on one side of the side core pulling slider, a side pulling hole is formed in the fixed template, the convex block of the side core pulling slider penetrates through the side pulling hole to be matched with the side, the oblique guide hole that oblique guide pillar upper end passed backing plate and movable mould board and side slider of loosing core cooperatees, the lock module is fixed mutually with the backing plate through the fastener, the lock module upper end passes the movable mould board and cooperatees with the outer wall of side slider of loosing core, the system has the spring pocket under the movable mould board, set up first spring in the spring pocket, first spring upper end contacts with the movable mould board, the lower extreme of first spring contacts with the backing plate, the system has the distance dead slot under the backing plate, it has the through-hole to open in the distance dead slot, set up the distance blind rivet in the distance dead slot, the system has the distance board under the distance blind rivet, the upper end of distance blind rivet is passed through-hole and.

The utility model discloses an injection mold cover half side guide pillar mechanism of loosing core outward, after working of plastics injection moulding, lower double plate drives the die pin, go up the thimble board, lower thimble board, the thimble, the backing plate, the locking module piece, oblique guide pillar and baffle move backward, when the backing plate moves backward, first spring withstands the movable mould board forward under the effect of restoring force, make movable mould board, distance blind rivet and working of plastics keep motionless earlier, make the mould follow the first die sinking between backing plate and the movable mould board earlier, when locking module piece and oblique guide pillar move backward, the locking module piece breaks away from the contact side slider gradually, and oblique guide pillar cooperates with the oblique guide hole of side slider, drive side slider and move outside gradually, the side opening that makes the lug of side slider of loosing core outwards take out, when the distance board of fixed distance blind rivet contacts with the distance blind groove, the fixed distance blind rivet is withheld in the fixed distance blind groove, drive the fixed distance blind rivet, The movable template and the plastic piece move backwards together, so that the driven template and the fixed template of the mold are opened for the second time, and finally, the ejector rod of the injection machine drives the upper ejector pin plate, the lower ejector pin plate and the ejector pin to eject out and demold the plastic piece. This scheme injection mold cover half oblique guide pillar mechanism of loosing core outward sets up the side slider of loosing core through in cover half one side to set up oblique guide pillar and distance blind rivet structure in movable mould one side, take the side opening of working of plastics out through twice die sinking, thereby avoid the working of plastics surface to leave the weld line, guarantee that the working of plastics appearance is pleasing to the eye, and save the hydro-cylinder structure, reduce mould manufacturing cost, improve production efficiency.

The utility model discloses mechanism of loosing core outside guide pillar to one side of injection mold cover half, the fixed die plate in the system have the locating hole, set up the locating pin in the locating hole, the upper end of locating pin sets up the second spring, the upper end and the last doubler of second spring contact, the lower extreme and the locating pin of second spring contact, system has preceding constant head tank and back constant head tank on the slider is loosed core in the side, the locating pin cooperatees with preceding, back constant head tank. When the side core-pulling slide block is in a matched die state, the rear positioning groove on the side core-pulling slide block is matched with the lower end of the positioning pin, when the side core-pulling slide block is used for pulling a core towards the outer side, the rear positioning groove is matched with the positioning pin and pushes the positioning pin to move upwards, the positioning pin upwards extrudes the second spring, when the front positioning groove of the side core-pulling slide block corresponds to the positioning pin, the second spring pushes the positioning pin to be downwards clamped into the front positioning groove, the side core-pulling slide block just completes core-pulling action at the moment, the positioning pin and the front and rear positioning grooves play a role in matched die and core-. A strong positioning block is arranged below the fixed die plate, the strong positioning block is fixed with the fixed die plate through a fastener, and the side core-pulling slider is contacted with the strong positioning block during core pulling. The strong positioning block can further position the core-pulling action of the side core-pulling slide block outwards.

Drawings

FIG. 1 is a schematic structural diagram of a mold closing state of an external core-pulling mechanism of an inclined guide post at the side of a fixed mold of an injection mold;

FIG. 2 is a structural diagram of a first-time mold opening state of an outer core-pulling mechanism of an inclined guide pillar at the side of a fixed mold of an injection mold;

FIG. 3 is a structural diagram of a second mold opening state of the outer core-pulling mechanism of the inclined guide post at the fixed mold side of the injection mold;

FIG. 4 is a schematic structural diagram of a plastic part ejection state of an injection mold fixed die side inclined guide post outer core pulling mechanism;

FIG. 5 is a schematic structural diagram of a conventional injection mold with a side core-pulling slider disposed on one side of a movable mold.

Detailed Description

The utility model relates to an injection mould fixed mould side inclined guide post external core pulling mechanism, as shown in figure 1-figure 4, comprising an upper compound plate 1 and a lower compound plate 2, a fixed mould plate 3 is arranged under the upper compound plate, a perforation 4 is arranged in the lower compound plate, a mould foot 5 is arranged on the lower compound plate, an upper thimble plate 6, a lower thimble plate 7 and a thimble 8 are arranged on the lower compound plate between the mould feet, a thimble 9 of an injection machine passes through the perforation 4 to contact with the lower thimble plate, a backing plate 10 is arranged on the mould foot 5, a movable mould plate 11 is arranged on the backing plate, an injection moulding plastic piece 12 is arranged between the movable mould plate and the fixed mould plate 3, a side hole 13 is arranged on the side wall of the plastic piece, a side core pulling slide block 14 is arranged under the fixed mould plate 3, the upper end of the side core pulling slide block is in sliding fit with the fixed mould plate, an inclined guide hole 15 is arranged in the side core pulling slide block, a lug 16 is arranged on one side of the side core pulling slide block, a side hole 17 is arranged in the, an inclined guide post 18 and a lock module 19 are arranged in a backing plate 10, a baffle 20 is arranged at the bottom of the inclined guide post and fixed with the backing plate through a fastener, the upper end of the inclined guide post penetrates through the backing plate 10 and a movable template 11 to be matched with an inclined guide hole 15 of a side core-pulling slider 14, the lock module 19 is fixed with the backing plate through a fastener, the upper end of the lock module penetrates through the movable template 11 to be matched with the outer wall of the side core-pulling slider 14, a spring groove 21 is formed below the movable template 11, a first spring 22 is arranged in the spring groove, the upper end of the first spring is contacted with the movable template, the lower end of the first spring is contacted with the backing plate 10, a fixed-distance pull groove 23 is formed below the backing plate, a through hole 24 is formed in the fixed-distance pull groove, a fixed-distance pull nail 25 is arranged in the fixed-distance pull groove, a. After the plastic part 12 is injection molded, the lower compound plate 2 drives the mold legs 5, the upper ejector plate 6, the lower ejector plate 7, the ejector pins 8, the backing plate 10, the lock module 19, the inclined guide post 18 and the baffle 20 to move backwards, when the backing plate 10 moves backwards, the first spring 22 pushes the movable mold plate 11 forwards under the action of restoring force, so that the movable mold plate, the distance draw pin 25 and the plastic part 12 are kept still firstly, the mold is firstly opened from between the backing plate 10 and the movable mold plate 11 for the first time, when the lock module 19 and the inclined guide post 18 move backwards, the lock module is gradually separated from the contact side core-pulling slide block 14, the inclined guide post 18 is matched with the inclined guide hole 15 of the side core-pulling slide block 14 to drive the side core-pulling slide block to gradually move outwards, the convex block 16 of the side core-pulling slide block is outwards pulled out of the side hole 13 of the core-pulling slide block 12, when the distance plate 26 of the distance draw pin 25 is contacted with, the distance rivet, the movable template 11 and the plastic piece 12 are driven to move backwards together, the driven template and the fixed template 3 of the mold are opened for the second time, and finally the ejector rod 9 of the injection machine drives the upper ejector pin plate 6, the lower ejector pin plate 7 and the ejector pin 8 to eject and demold the plastic piece 12. This scheme injection mold cover half side guide pillar mechanism of loosing core outward sets up side slider 14 of loosing core through in cover half one side to set up oblique guide pillar 18 and distance blind rivet 25 structure in movable mould one side, take out the side opening 13 of working of plastics 12 through twice die sinking, thereby avoid the working of plastics surface to leave the weld line, guarantee that the working of plastics appearance is pleasing to the eye, and save the hydro-cylinder structure, reduce mould manufacturing cost, improve production efficiency. The fixed die plate 3 is provided with a positioning hole 27, a positioning pin 28 is arranged in the positioning hole, the upper end of the positioning pin is provided with a second spring 29, the upper end of the second spring is contacted with the upper compound plate 1, the lower end of the second spring is contacted with the positioning pin 28, the side core-pulling slide block 14 is provided with a front positioning slot 30 and a rear positioning slot 31, and the positioning pin is matched with the front positioning slot and the rear positioning slot. When the side core-pulling slider is in a mold closing state, the rear positioning groove 31 on the side core-pulling slider 14 is matched with the lower end of the positioning pin 28, when the side core-pulling slider is used for pulling a core outwards, the rear positioning groove is matched with the positioning pin and pushes the positioning pin 28 to move upwards, the positioning pin upwards extrudes the second spring 29, when the front positioning groove 30 of the side core-pulling slider 14 corresponds to the positioning pin 28, the second spring 29 pushes the positioning pin 28 to be downwards clamped into the front positioning groove 39, the side core-pulling slider 14 also just completes the core-pulling action at the moment, and the positioning pin 28, the front positioning groove 30 and the rear positioning groove 31 play a positioning role in the mold closing and core-pulling actions. A strong positioning block 32 is arranged below the fixed die plate 3, the strong positioning block is fixed with the fixed die plate through a fastener, and the side core-pulling slider 14 is in contact with the strong positioning block 32 during core pulling. The strong positioning block 32 can further strongly position the outward core-pulling action of the side core-pulling slider 14.

Claims

1. Injection mold cover half incline guide pillar mechanism of loosing core outward, including compound board (1) and lower compound board (2), set up fixed die plate (3) under going up the compound board, it has perforation (4) to open in the compound board down, set up moulding foot (5) on the compound board down, set up thimble board (6) on the lower compound board between the moulding foot, thimble board (7) and thimble (8) down, ejector pin (9) of injection machine pass perforation (4) and contact with thimble board down, set up backing plate (10) on moulding foot (5), set up movable mould board (11) on the backing plate, there is injection moulding's working of plastics (12) between movable mould board and fixed die plate (3), the lateral wall system of working of plastics has side opening (13), its characterized in that: a side core-pulling slider (14) is arranged below the fixed die plate (3), the upper end of the side core-pulling slider is in sliding fit with the fixed die plate, an inclined guide hole (15) is formed in the side core-pulling slider, a convex block (16) is formed on one side of the side core-pulling slider, a side pulling hole (17) is formed in the fixed die plate (3), the convex block of the side core-pulling slider penetrates through the side pulling hole to be matched with a side hole (13) of a plastic part (12), an inclined guide pillar (18) and a locking module (19) are arranged in the backing plate (10), a baffle (20) is arranged at the bottom of the inclined guide pillar and fixed with the backing plate through a fastener, the upper end of the inclined guide pillar penetrates through the backing plate (10) and the movable die plate (11) to be matched with the inclined guide hole (15) of the side core-pulling slider (14), the locking module (19) is fixed with the backing plate through the fastener, the upper end of the locking module penetrates, the spring slot is internally provided with a first spring (22), the upper end of the first spring is contacted with the movable template, the lower end of the first spring is contacted with the backing plate (10), a distance draw groove (23) is arranged under the backing plate, a through hole (24) is arranged in the distance draw groove, a distance rivet (25) is arranged in the distance draw groove, a distance plate (26) is arranged under the distance rivet, and the upper end of the distance rivet penetrates through the through hole (24) and the spring slot (21) to be connected with the movable template (11).

2. The injection mold fixed die side inclined guide pillar outer core pulling mechanism as claimed in claim 1, characterized in that: the side core pulling mechanism is characterized in that a positioning hole (27) is formed in the fixed die plate (3), a positioning pin (28) is arranged in the positioning hole, a second spring (29) is arranged at the upper end of the positioning pin, the upper end of the second spring is in contact with the upper doubling plate (1), the lower end of the second spring is in contact with the positioning pin (28), a front positioning groove (30) and a rear positioning groove (31) are formed in the side core pulling slide block (14), and the positioning pin is matched with the front positioning groove and the rear positioning groove.

3. The injection mold fixed die side inclined guide pillar outer core pulling mechanism as claimed in claim 1, characterized in that: a strong positioning block (32) is arranged below the fixed die plate (3), the strong positioning block is fixed with the fixed die plate through a fastener, and the side core-pulling slider (14) is in contact with the strong positioning block (32) during core pulling.