CN214773792U

CN214773792U - Convenient-to-loose-core slag runner wear-resistant elbow injection mold

Info

Publication number: CN214773792U
Application number: CN202120200250.5U
Authority: CN
Inventors: 严正松
Original assignee: Yangzhou City Jinzheng Electromechanical Mfg Co ltd
Current assignee: Yangzhou City Jinzheng Electromechanical Mfg Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-19
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a slag runner wear-resistant elbow injection mold convenient for core pulling, which comprises a lower mold seat and a core pulling mechanism; a lower die base: the upper surface bilateral symmetry is provided with the extension board, the upper surface of two extension boards all is connected with the lower fixed surface of lower bolster, the mold core is installed through the bolt in the inside of lower bolster, the upper surface of mold core is provided with the core, the upper surface four corners of lower bolster evenly is provided with the guide post, four guide posts correspond the guide hole sliding connection who sets up with the upper die plate four corners respectively, the lower surface of upper die plate is provided with the die cavity with core complex, the inside bottom surface of mounting hole that the upper surface of upper die plate evenly set up all is provided with second T type pole, this convenient flushing cinder notch wear-resisting elbow injection mold of loosing core, it is simple to loose core structure, can not lead to the below structural damage because of the mould dislocation, can also prevent that the upper die plate direct movement from leading to wear-resisting elbow damage.

Description

Convenient-to-loose-core slag runner wear-resistant elbow injection mold

Technical Field

The utility model relates to an injection mold makes technical field, specifically is a convenient wear-resisting elbow injection mold of sluiceway of loosing core.

Background

The injection molding is a main molding device for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, the injection molding is realized by an injection molding machine and a die, the injection molding die is the core of the injection molding product and is a tool for endowing the plastic products with complete configuration and accurate size, when the injection molding die is used, plastics are firstly heated and melted in a heating charging barrel at the bottom of the injection molding machine and then enter a die cavity of the die through a pouring system of a nozzle of the injection molding machine and the die under the pushing of a screw rod or a plunger of the injection molding machine, the plastics are cooled, hardened and molded, the die is demolded to obtain the product, and a core-pulling mechanism is usually required to be added outside the injection molding die for the wear-resistant elbow with the shape at the right side surface, the existing core pulling mechanism is mostly used for pulling cores of inclined guide pillars or pulling cores of electric push rods, the core pulling structure is complex, the inclined guide pillars are prone to being bent and scrapped if a die is inclined when the inclined guide pillars are used, wear-resistant elbows can be damaged when the die is opened, and the quality of the wear-resistant elbows cannot be guaranteed, so that the slag-flushing ditch wear-resistant elbow injection mold convenient for pulling cores is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a convenient wear-resisting elbow injection mold of sluiceway of loosing core, loose core simple structure can not lead to below structural damage because the mould dislocation, prevents that the direct removal of cope match-plate pattern from leading to wear-resisting elbow to damage, guarantees the quality of wear-resisting elbow, still makes things convenient for the automatic drawing of patterns of wear-resisting elbow, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a slag runner wear-resistant elbow injection mold convenient for core pulling comprises a lower mold base and a core pulling mechanism;

a lower die base: support plates are symmetrically arranged on the left and right of the upper surface of the lower template, the upper surfaces of the two support plates are fixedly connected with the lower surface of the lower template, a mold core is mounted in the lower template through bolts, a mold core is arranged on the upper surface of the mold core, guide columns are uniformly arranged at four corners of the upper surface of the lower template, the four guide columns are respectively in sliding connection with guide holes correspondingly arranged at four corners of the upper template, a cavity matched with the mold core is arranged on the lower surface of the upper template, second T-shaped rods are arranged on the inner bottom surfaces of mounting holes uniformly arranged on the upper surface of the upper template, and the upper ends of the four second T-shaped rods are respectively in sliding connection with second step holes correspondingly arranged in the middle of the upper mold base;

a core-pulling mechanism: the right end of the upper surface of the upper template is arranged;

wherein: still include the runner cover, the runner cover sets up in the middle part of upper die base, and the middle part of cope match-plate pattern is provided with runner cover complex through-hole, and the lower extreme opening of runner cover communicates with each other with the die cavity of cope match-plate pattern lower extreme is inside, and the structure of loosing core is simple, can not lead to below structural damage because the mould dislocation, prevents that the cope match-plate pattern direct movement from leading to wear-resisting elbow to damage, guarantees the quality of wear-resisting elbow, still makes things convenient for the automatic drawing of patterns of wear-resisting elbow.

Further, the mechanism of loosing core includes mounting groove, connecting plate, spout, briquetting and side core, the mounting groove sets up in the upper surface right-hand member of cope match-plate pattern, and the inner wall symmetry is provided with the spout around the mounting groove, and the pivot that the end set up about the connecting plate respectively with the spout sliding connection of homonymy, the lower extreme middle part of connecting plate is rotated with the connecting rod of briquetting right-hand member and is connected, and the briquetting left end is provided with the side core, and the through-hole sliding connection of side core and mounting groove lower extreme, the simple structure of loosing core can not lead to below structural damage because the mould dislocation.

Furthermore, the opening at the upper end of the connecting plate is rotatably connected with the lower end of the pull rod arranged on the lower surface of the upper die base, so that driving force is provided for the core pulling.

Further, still include first step hole, first step hole evenly sets up in the inside of cope match-plate pattern, and the equal sliding connection in inside of four first step holes has first T type pole, and the lower surface of four first T type poles all is connected with the last fixed surface of backing plate, and the middle part of backing plate is provided with respectively with guide post and core complex opening, makes things convenient for the automatic drawing of patterns of wear-resisting elbow.

Furthermore, the spring has all been cup jointed to the lower extreme of second T type pole, and the upper end of spring all contacts with the lower surface of upper die base, prevents that the cope match-plate pattern direct movement from resulting in wear-resisting elbow to damage.

Compared with the prior art, the beneficial effects of the utility model are that: this convenient wear-resisting elbow injection mold of sluiceway of loosing core has following benefit:

1. during the compound die, the removal end of outside injection molding machine drives the upper die base and moves down, and the pull rod of upper die base lower extreme exerts pressure to the connecting plate, and the pivot of connecting plate upper end slides downwards along the perpendicular groove of spout, and the pivot of connecting plate lower extreme slides left along the cross slot of spout, thereby the lower extreme of connecting plate promotes the briquetting and moves left and make the side core pass the through-hole of mounting groove lower extreme and contact with the core side, simple structure, and the shaping of convenient wear-resisting elbow side shape can not lead to below structural damage because the mould dislocation.

2. When the die is opened, the moving end of the external injection molding machine drives the upper die base to move upwards, the upper die plate is kept still under the elastic action of the spring, the wear-resistant elbow is prevented from being damaged due to the fact that the upper die plate directly moves, the pull rod drives the upper end of the connecting plate to move upwards when the upper die base moves upwards, the lower end of the connecting plate moves rightwards and drives the pressing block to move rightwards, the side core is extracted, and the quality of the wear-resistant elbow is guaranteed.

3. After the upper die plate moves for a certain distance, the upper end of the first T-shaped rod is contacted with the inner bottom surface of the first step hole, and at the moment, the base plate synchronously moves upwards along with the upper die plate and takes off a product sleeved at the upper end of the core, so that the automatic demolding of the wear-resistant elbow is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the upper plate of the present invention;

FIG. 3 is a schematic view of the structure of the core pulling mechanism according to the present invention;

FIG. 4 is a schematic sectional view of the mounting hole of the present invention;

fig. 5 is a schematic view of a sectional structure of the first step hole of the present invention.

In the figure: the die comprises a lower die base 1, a core-pulling mechanism 2, a mounting groove 21, a connecting plate 22, a sliding groove 23, a pressing block 24, a side core 25, a support plate 3, a lower die plate 4, a die core 5, a die core 6, a guide post 7, an upper die plate 8, a guide hole 9, an upper die base 10, a sprue bush 11, a first step hole 12, a first T-shaped rod 13, a backing plate 14, a pull rod 15, a mounting hole 16, a second T-shaped rod 17, a spring 18 and a second step hole 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a convenient core pulling slag runner wear-resistant elbow injection mold comprises a lower die holder 1 and a core pulling mechanism 2;

a lower die holder 1: the upper surfaces of the two support plates 3 are symmetrically provided with support plates 3 at left and right sides, an installation place is provided for an upper structure, the upper surfaces of the two support plates 3 are fixedly connected with the lower surface of a lower template 4, a mold core 5 is installed inside the lower template 4 through bolts, a mold core 6 is arranged on the upper surface of the mold core 5, guide posts 7 are uniformly arranged at four corners of the upper surface of the lower template 4, the four guide posts 7 are respectively in sliding connection with guide holes 9 correspondingly arranged at four corners of an upper template 8, so that the deflection of the mold during opening and closing can be prevented, a cavity matched with the mold core 6 is arranged on the lower surface of the upper template 8, the forming of a wear-resistant elbow is convenient, the bottom surfaces inside installation holes 16 uniformly arranged on the upper surface of the upper template 8 are respectively provided with second T-shaped rods 17, the upper ends of the four second T-shaped rods 17 are respectively in sliding connection with second step holes 19 correspondingly arranged in the middle part of an upper mold base 10, the upper mold base 10 moves upwards until the second T-shaped rods 17 inside the installation holes 16 are in contact with the bottom surfaces of the second step holes 19, at the moment, the upper template 8 moves upwards along with the upper die holder 10, the cavity at the lower end of the upper template 8 is separated from the core 6, the lower ends of the second T-shaped rods 17 are all sleeved with springs 18, the upper ends of the springs 18 are all in contact with the lower surface of the upper die holder 10, and the springs 18 ensure that the upper die holder 10 starts to move firstly when the die is opened, so that the side cores 25 are prevented from being broken;

core-pulling mechanism 2: the core pulling mechanism 2 comprises a mounting groove 21, a connecting plate 22, a sliding groove 23, a pressing block 24 and a side core 25, the mounting groove 21 is arranged at the right end of the upper surface of the upper template 8, the sliding grooves 23 are symmetrically arranged on the front inner wall and the rear inner wall of the mounting groove 21, rotating shafts arranged at the upper end and the lower end of the connecting plate 22 are respectively connected with the sliding grooves 23 at the same side in a sliding manner, the middle part of the lower end of the connecting plate 22 is connected with a connecting rod at the right end of the pressing block 24 in a rotating manner, the side core 25 is arranged at the left end of the pressing block 24 and is connected with a through hole at the lower end of the mounting groove 21 in a sliding manner, an opening at the upper end of the connecting plate 22 is connected with the lower end of a pull rod 15 arranged on the lower surface of the upper die base 10 in a rotating manner, when the die is closed, the moving end of an external injection molding machine drives the upper die base 10 to move downwards, the pull rod 15 at the lower end of the upper die base 10 exerts pressure on the connecting plate 22, the rotating shaft slides downwards along a vertical groove of the sliding groove 23, the connecting plate 22 slides leftwards along a horizontal groove of the sliding groove 23, the lower end of the connecting plate 22 pushes the pressing block 24 to move leftwards, so that the side core 25 penetrates through a through hole at the lower end of the mounting groove 21 and is contacted with the side surface of the core 6, the structure is simple, the forming of the shape of the side surface of the wear-resistant elbow is convenient, when the die is opened, the moving end of an external injection molding machine drives the upper die holder 10 to move upwards, the upper die plate 8 is kept still under the elastic force action of the spring 18, the pull rod 15 drives the upper end of the connecting plate 22 to move upwards while the upper die holder 10 moves upwards, the lower end of the connecting plate 22 moves rightwards and drives the pressing block 24 to move rightwards to extract the side core 25, and the side core 25 is prevented from being broken when the die is opened;

wherein: the plastic injection mold further comprises a sprue bush 11, the sprue bush 11 is arranged in the middle of the upper mold base 10, a through hole matched with the sprue bush 11 is formed in the middle of the upper mold plate 8, and an opening in the lower end of the sprue bush 11 is communicated with the interior of a cavity in the lower end of the upper mold plate 8, so that plastic can be conveniently injected.

Wherein: still include first step hole 12, first step hole 12 evenly sets up in the inside of cope match-plate pattern 8, the equal sliding connection in inside of four first step holes 12 has first T type pole 13, the lower surface of four first T type poles 13 all is connected with the last fixed surface of backing plate 14, the middle part of backing plate 14 is provided with respectively with

guide post

7 and 6 complex openings of core, after cope match-plate pattern 8 removed the certain distance, the upper end of first T type pole 13 and the inside bottom surface contact of first step hole 12, backing plate 14 shifts up and will cup joint the product of taking off in the upper end of core 6 along with cope match-plate pattern 8 this moment in step, make things convenient for the automatic drawing of patterns of wear-resisting elbow.

When in use: the lower die holder 1 and the upper die holder 10 are arranged at proper positions of an external injection molding machine, so that a nozzle of the external injection molding machine corresponds to a sprue bush 11, a moving end of the external injection molding machine drives the upper die holder 10 to move downwards, guide posts 7 and guide holes 9 can prevent the die from deflecting, a backing plate 14 is firstly attached to a lower die plate 4, an upper die plate 8 is then attached to the backing plate 14, then the upper die holder 10 continuously moves downwards, a spring 18 is compressed, a pull rod 15 at the lower end of the upper die holder 10 exerts pressure on a connecting plate 22, a rotating shaft at the upper end of the connecting plate 22 slides downwards along a vertical groove of a sliding groove 23, a rotating shaft at the lower end of the connecting plate 22 slides leftwards along a transverse groove of the sliding groove 23, the lower end of the connecting plate 22 pushes a pressing block 24 to move leftwards so that a side core 25 penetrates through a through hole at the lower end of an installation groove 21 and is contacted with the side surface of a core 6, the die is completely closed, and molten plastic is injected into a die cavity at the lower end of the upper die 8 through the sprue bush 11 in the external injection molding machine, the die cavity at the lower end of the upper die plate 8 is matched with the die core 6 and the side core 25 to form the wear-resistant elbow, when the die is opened, the moving end of the external injection molding machine drives the upper die holder 10 to move upwards, at the moment, the upper die plate 8 is kept still under the action of the elastic force of the spring 18, the pull rod 15 drives the upper end of the connecting plate 22 to move upwards while the upper die holder 10 moves upwards, the lower end of the connecting plate 22 moves rightwards and drives the pressing block 24 to move rightwards so as to draw out the side core 25, the upper die holder 10 moves upwards until the second T-shaped rod 17 inside the mounting hole 16 is contacted with the bottom surface of the second stepped hole 19, at the moment, the upper die plate 8 moves upwards along with the upper die holder 10, the cavity at the lower end of the upper die plate 8 is separated from the core 6, after the upper die plate 8 moves for a certain distance, the upper end of the first T-shaped rod 13 is in contact with the inner bottom surface of the first step hole 12, and at the moment, the backing plate 14 moves upwards synchronously along with the upper die plate 8 and takes off a product sleeved at the upper end of the die core 6, so that the wear-resistant elbow can be automatically demoulded conveniently.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a convenient wear-resisting elbow injection mold of sluiceway of loosing core which characterized in that: comprises a lower die holder (1) and a core-pulling mechanism (2);

lower die holder (1): support plates (3) are symmetrically arranged on the left and right of the upper surface of the support plate, the upper surfaces of the two support plates (3) are fixedly connected with the lower surface of a lower template (4), a mold core (5) is installed inside the lower template (4) through bolts, a mold core (6) is arranged on the upper surface of the mold core (5), guide columns (7) are uniformly arranged at four corners of the upper surface of the lower template (4), the four guide columns (7) are respectively in sliding connection with guide holes (9) which are correspondingly arranged at four corners of an upper template (8), a cavity matched with the mold core (6) is arranged on the lower surface of the upper template (8), second T-shaped rods (17) are respectively arranged on the inner bottom surfaces of mounting holes (16) which are uniformly arranged on the upper surface of the upper template (8), and the upper ends of the four second T-shaped rods (17) are respectively in sliding connection with second step holes (19) which are correspondingly arranged in the middle of an upper mold base (10);

core-pulling mechanism (2): the right end of the upper surface of the upper template (8) is arranged;

wherein: the die is characterized by further comprising a sprue bush (11), wherein the sprue bush (11) is arranged in the middle of the upper die base (10), a through hole matched with the sprue bush (11) is formed in the middle of the upper die plate (8), and an opening in the lower end of the sprue bush (11) is communicated with the interior of a die cavity in the lower end of the upper die plate (8).

2. The slag runner wear-resistant elbow injection mold convenient for core pulling according to claim 1, characterized in that: the core pulling mechanism (2) comprises a mounting groove (21), a connecting plate (22), sliding grooves (23), a pressing block (24) and a side core (25), wherein the mounting groove (21) is formed in the right end of the upper surface of an upper template (8), the sliding grooves (23) are symmetrically formed in the front inner wall and the rear inner wall of the mounting groove (21), a rotating shaft arranged at the upper end and the lower end of the connecting plate (22) is respectively connected with the sliding grooves (23) on the same side in a sliding mode, the middle of the lower end of the connecting plate (22) is rotatably connected with a connecting rod at the right end of the pressing block (24), the side core (25) is arranged at the left end of the pressing block (24), and the side core (25) is slidably connected with a through hole at the lower end of the mounting groove (21).

3. The slag runner wear-resistant elbow injection mold convenient for core pulling according to claim 2, characterized in that: an opening at the upper end of the connecting plate (22) is rotatably connected with the lower end head of a pull rod (15) arranged on the lower surface of the upper die holder (10).

4. The slag runner wear-resistant elbow injection mold convenient for core pulling according to claim 1, characterized in that: still include first step hole (12), first step hole (12) evenly set up in the inside of cope match-plate pattern (8), and the equal sliding connection in inside of four first step holes (12) has first T type pole (13), and the lower surface of four first T type poles (13) all is connected with the last fixed surface of backing plate (14), and the middle part of backing plate (14) is provided with respectively with guide post (7) and core (6) complex opening.

5. The slag runner wear-resistant elbow injection mold convenient for core pulling according to claim 1, characterized in that: the lower end of the second T-shaped rod (17) is sleeved with a spring (18), and the upper end of the spring (18) is in contact with the lower surface of the upper die base (10).