CN215750453U

CN215750453U - Eccentric mould advances gluey focus rebalance pressure-bearing device

Info

Publication number: CN215750453U
Application number: CN202120931051.1U
Authority: CN
Inventors: 倪孝赎; 杨先勇; 杨健; 韦少庚
Original assignee: Guizhou Qianli Heavy Industry Co ltd
Current assignee: Guizhou Qianli Heavy Industry Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-02-08
Anticipated expiration: 2031-04-30

Abstract

The utility model belongs to the technical field of eccentric molds, and particularly relates to a glue feeding gravity center rebalancing pressure-bearing device for an eccentric mold, which aims at solving the problem that the pressure-bearing of the eccentric mold is inconsistent when the eccentric mold is closed, so that the mold is deviated, and more burrs exist in an injection molding piece; according to the utility model, when the guide pillar moves downwards, the pushing block is contacted and extruded by the pressing block, so that the balance rod drives the balance block to move to the inside of the clamping groove, the pressure balance is carried out on the side surface of the eccentric die when the movable die plate and the fixed die plate are closed, the eccentric die can be effectively prevented from being deviated when glue feeding treatment is carried out through the glue feeding sprue bush, and the possibility of burrs of an injection molding piece is effectively reduced; meanwhile, the lifting rack moves downwards, the limiting rod drives the limiting block to move upwards, the limiting block performs pressure balance on the end face of the movable template when the movable template and the fixed template are matched, and stability of the fixed template and the movable template when the fixed template and the movable template are matched is further improved.

Description

Eccentric mould advances gluey focus rebalance pressure-bearing device

Technical Field

The utility model relates to the technical field of eccentric molds, in particular to a glue feeding gravity center rebalancing pressure-bearing device of an eccentric mold.

Background

The mold is used for obtaining various molds and tools of 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.

At present, when an eccentric injection mold is used for closing the mold and injecting the plastic, the mold locking force mold borne by the mold on an injection molding machine is deviated to one end, so that the whole mold is unevenly stressed, the end with less pressure bearing can cause the mold to deviate when the mold is closed, and an injection molding piece subjected to injection molding is easy to have the phenomenon of burrs.

Therefore, an eccentric mold glue feeding center rebalancing pressure-bearing device is needed for solving the problem that the pressure-bearing of the eccentric mold is inconsistent when the eccentric mold is closed, so that the mold is deviated, and more burrs exist in an injection molding part.

SUMMERY OF THE UTILITY MODEL

The utility model provides a glue feeding gravity center rebalancing pressure-bearing device for an eccentric die, which solves the problem that the pressure-bearing of the die is inconsistent when the eccentric die is closed, so that the die is shifted, and more burrs exist in an injection molding part.

In order to achieve the purpose, the utility model adopts the following technical scheme: an eccentric die glue feeding gravity center rebalancing pressure-bearing device comprises

The upper surface of the lower die base is provided with a lower backing plate, the upper surface of the lower backing plate is provided with a fixed die plate, and the top of the lower die base is fixed with four guide sleeves which are symmetrically distributed;

the lower surface of the upper die holder is provided with an upper base plate, the lower surface of the lower base plate is provided with a movable die plate, and the bottom of the upper die holder is fixedly provided with four guide posts which are respectively in one-to-one correspondence with the guide sleeves;

the glue feeding nozzle is installed on one side of the axis of the upper die base, a fixing block is fixed on one side of each guide pillar and is close to the glue feeding nozzle, a fixing frame is fixedly sleeved on the outer surface of each guide sleeve and is close to the two fixing blocks, a balance rod penetrates through one side of the fixing frame in a sliding mode, a balance block is fixed at one end of the balance rod, a compression spring is fixed between the balance block and the fixing frame, a pushing block is fixed at one end, away from the balance block, of the balance rod, a pressing block matched with the pushing block is fixed at the bottom end of the fixing block, and a limiting component matched with a movable die plate is installed on the outer surface of the fixing frame.

Preferably, the limiting assembly comprises

The two support sleeves are respectively fixed with the end faces of the fixed die plates, a limiting rod penetrates through a sliding rod on the upper surfaces of the support sleeves, and a limiting block is fixed at the top end of the limiting rod;

the pivot, the pivot with the surface of fixed frame rotates to be connected, the surface fastening cover of pivot has connect the rolling gear, one side sliding connection that fixed frame is close to the stopper has the rack of pressing with rolling gear meshing, one side sliding connection that the stopper was kept away from to fixed frame has the promotion rack with rolling gear meshing, promote the rack with be fixed with the dead lever between the fixed block.

Preferably, the limiting block comprises a cylindrical section and an arc-shaped section, the cylindrical section of the limiting block is located between the fixed die plate and the movable die plate, and the arc-shaped section of the limiting block is located on one side of the movable die plate.

Preferably, the lifting rack with press the rack and be crisscross setting, the lifting rack with press the surface of rack and all seted up the spacing groove, the external fixation of fixed frame has four to be located two respectively the spacing post of spacing inslot portion.

Preferably, two clamping grooves which are symmetrically distributed are formed in the side face of the movable template, and the balance block extends to the inner parts of the clamping grooves.

Preferably, the cross section of the pushing block is in the shape of a right triangle, and the contact surface of the pressing block and the pushing block is an adaptive inclined surface.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the guide pillar and the guide sleeve are preliminarily positioned to improve the positioning effect of the movable die plate and the fixed die plate, the guide pillar moves downwards, and simultaneously, the pushing block is contacted and extruded by the pressing block, so that the balance rod drives the balance block to move into the clamping groove, the pressure balance is carried out on the side surface of the eccentric die when the movable die plate and the fixed die plate are combined, the eccentric die can be effectively prevented from being deviated when glue feeding treatment is carried out through the glue feeding sprue bushing, and the possibility of injection molding burr is effectively reduced; meanwhile, the lifting rack moves downwards, so that the limiting rod drives the limiting block to move upwards through the transmission action of the rotating gear and the pressing rack, the limiting block performs pressure balance on the end face of the movable template and the fixed template during die assembly, and the stability of the fixed template and the movable template during die assembly is further improved; when the movable mould plate and the fixed mould plate are opened, the guide pillar moves upwards, the limit of the pushing block is released by the pressing block at the moment, the elastic action of the compression spring can be enabled, the balance effect on the movable mould plate is released, the rack moves downwards by pressing, and the limit block is separated from the movable mould plate, so that the convenience of opening the movable mould plate and the fixed mould plate is improved.

2. The cylindrical section of the limiting block is used for carrying out end face balance treatment on the movable mould plate and the fixed mould plate during mould closing, so that the balance pressure-bearing effect of an injection molding piece is improved during glue feeding, and the arc-shaped section is used for guiding the movable mould plate and the fixed mould plate to a certain degree during mould opening.

Drawings

FIG. 1 is a schematic view of an overall structure of a glue feeding gravity center rebalancing pressure-bearing device of an eccentric mold according to the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a schematic view of a partial structure of a glue feeding gravity center rebalancing pressure-bearing device of an eccentric mold according to the present invention;

fig. 4 is a schematic view of a partial structure of a clamping groove of the eccentric mold glue feeding gravity center rebalancing pressure-bearing device provided by the utility model.

In the figure: 1. a lower die holder; 2. a lower base plate; 3. fixing a template; 4. a guide sleeve; 5. an upper die holder; 6. an upper base plate; 7. moving the template; 8. a guide post; 9. a glue feeding sprue bushing; 10. a fixed block; 11. a fixing frame; 12. a balancing pole; 13. a counterbalance; 14. a compression spring; 15. a pushing block; 16. a pressing block; 17. a limiting component; 171. a support sleeve; 172. a limiting rod; 173. a limiting block; 1731. a cylindrical section; 1732. an arc-shaped section; 174. a rotating shaft; 175. a rotating gear; 176. pressing the rack; 177. lifting the rack; 178. fixing the rod; 18. a limiting groove; 19. a limiting column; 20. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the rubber feeding gravity center rebalancing pressure-bearing device for the eccentric mold comprises a lower die holder 1, wherein a lower backing plate 2 is installed on the upper surface of the lower die holder 1, a fixed die plate 3 is installed on the upper surface of the lower backing plate 2, and four guide sleeves 4 which are symmetrically distributed are fixed on the top of the lower die holder 1; an upper die holder 5, wherein an upper backing plate 6 is arranged on the lower surface of the upper die holder 5, a movable die plate 7 is arranged on the lower surface of the lower backing plate 2, and four guide posts 8 which are respectively in one-to-one correspondence with the guide sleeves 4 are fixed at the bottom of the upper die holder 5; the utility model discloses a mould opening device, including plastic inlet nozzle 9, fixed block 10 all is fixed with in one side of the axle center department of upper die base 5, the equal fastening cover of surface of two guide pillars 8 that are close to plastic inlet nozzle 9, fixed frame 11 has been connected to the equal fastening cover of two guide pin bushings 4 that are close to fixed block 10, one side of fixed frame 11 slides and runs through balancing pole 12, the one end of balancing pole 12 is fixed with balancing piece 13, two draw-in grooves 20 that are the symmetric distribution are seted up to the side of movable mould board 7, balancing piece 13 extends to the inside of draw-in groove 20, specifically, the terminal surface of balancing piece 13 is provided with the chamfer, when being used for

movable mould board

7 and 3 die sinking of fixed mould board, can remove the limiting displacement to promotion piece 15 through pressing block 16, can make movable mould board 7 and fixed mould board 3 carry out the die sinking processing, the setting of draw-in groove 20, further strengthen the balanced effect of balancing piece 13 to movable mould board 7.

A compression spring 14 is fixed between the balance block 13 and the fixed frame 11, a pushing block 15 is fixed at one end of the balance rod 12 far away from the balance block 13, a pressing block 16 matched with the pushing block 15 is fixed at the bottom end of the fixed block 10, the cross section of the pushing block 15 is in a right triangle shape, the contact surface of the pressing block 16 and the pushing block 15 is an inclined surface matched with each other, and a limiting component 17 matched with the movable template 7 is installed on the outer surface of the fixed frame 11.

The limiting assembly 17 comprises two supporting sleeves 171, the two supporting sleeves 171 are respectively fixed with the end faces of the fixed die plates 3, a limiting rod 172 penetrates through a sliding rod on the upper surfaces of the supporting sleeves 171, and a limiting block 173 is fixed at the top end of the limiting rod 172; the rotating shaft 174, the rotating shaft 174 is rotatably connected with the outer surface of the fixed frame 11, the rotating gear 175 is tightly sleeved on the outer surface of the rotating shaft 174, one side of the fixed frame 11 close to the limiting block 173 is slidably connected with a pressing rack 176 meshed with the rotating gear 175, one side of the fixed frame 11 far away from the limiting block 173 is slidably connected with a lifting rack 177 meshed with the rotating gear 175, and a fixing rod 178 is fixed between the lifting rack 177 and the fixed block 10.

The limiting block 173 comprises a cylindrical section 1731 and an arc-shaped section 1732, the cylindrical section 1731 of the limiting block 173 is located between the fixed die plate 3 and the movable die plate 7, the arc-shaped section 1732 of the limiting block 173 is located on one side of the movable die plate 7, specifically, the cylindrical section 1731 is used for carrying out end face balance treatment on the movable die plate 7 and the fixed die plate 3 during die assembly, so that the balance pressure-bearing effect of an injection molding piece of the injection molding piece is improved during glue feeding, and the arc-shaped section 1732 is arranged to perform a certain degree of guiding effect during die opening of the movable die plate 7 and the fixed die plate 3.

Lifting rack 177 is the setting of staggering with pressing rack 176, and lifting rack 177 has all seted up spacing groove 18 with the surface of pressing rack 176, and the external fixation of fixed frame 11 has four spacing posts 19 that are located two spacing inslot 18 insides respectively, and is concrete, the setting of spacing groove 18 and spacing post 19 for carry out spacing processing to lifting rack 177 and pressing rack 176, thereby improve lifting rack 177 and press the stability of rack 176 motion.

The working principle is as follows: when the eccentric injection mold is closed, the positioning effect of the movable mold plate 7 and the fixed mold plate 3 is improved through the primary positioning of the guide pillar 8 and the guide sleeve 4, the guide pillar 8 moves downwards, the pressing block 16 is driven to move downwards through the fixed block 10, the pressing block 16 is used for performing contact extrusion on the pushing block 15, the balancing rod 12 is used for driving the balancing block 13 to move into the clamping groove 20, the pressure balance is performed on the side surface of the eccentric mold when the movable mold plate 7 and the fixed mold plate 3 are closed, the eccentric mold can be effectively prevented from being deviated when glue feeding is performed through the glue feeding sprue bushing 9, and therefore the possibility of burrs of an injection molding part is effectively reduced; the fixed block 10 drives the lifting rack 177 to move downwards while moving downwards, so that the limiting rod 172 drives the limiting block 173 to move upwards through the transmission action of the rotating gear 175 and the pressing rack 176, the limiting block 173 performs pressure balance on the end face of the movable template 7 when the movable template 3 and the fixed template 7 are matched, and the stability of the fixed template 3 and the movable template 7 when the fixed template and the movable template are matched is further improved; when the movable die plate 7 and the fixed die plate 3 are opened, the guide post 8 moves upwards, the pressing block 16 releases the limit on the pushing block 15 at the moment, so that the elastic action of the compression spring 14 can be realized, the balance effect on the movable die plate 7 is released, meanwhile, the pressing rack 176 moves downwards, the limit block 173 is separated from the movable die plate 7, and the convenience for opening the movable die plate 7 and the fixed die plate 3 is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An eccentric die glue feeding gravity center rebalancing pressure-bearing device is characterized by comprising

The die comprises a lower die holder (1), wherein a lower backing plate (2) is mounted on the upper surface of the lower die holder (1), a fixed die plate (3) is mounted on the upper surface of the lower backing plate (2), and four guide sleeves (4) which are symmetrically distributed are fixed at the top of the lower die holder (1);

the lower surface of the upper die holder (5) is provided with an upper base plate (6), the lower surface of the lower base plate (2) is provided with a movable die plate (7), and the bottom of the upper die holder (5) is fixedly provided with four guide posts (8) which are respectively in one-to-one correspondence with the guide sleeves (4);

a glue feeding nozzle (9), wherein the glue feeding nozzle (9) is arranged at one side of the axis of the upper die base (5), one side of two guide posts (8) close to the glue feeding nozzle (9) is respectively fixed with a fixed block (10), the outer surfaces of two guide sleeves (4) close to the fixed blocks (10) are respectively fixedly sleeved with a fixed frame (11), a balancing pole (12) penetrates through one side of the fixing frame (11) in a sliding way, a balancing block (13) is fixed at one end of the balancing pole (12), a pressing spring (14) is fixed between the balance weight (13) and the fixed frame (11), a pushing block (15) is fixed at one end of the balancing rod (12) far away from the balancing block (13), a pressing block (16) matched with the pushing block (15) is fixed at the bottom end of the fixed block (10), the outer surface of the fixed frame (11) is provided with a limiting component (17) matched with the movable template (7).

2. The eccentric die glue feeding gravity center rebalancing pressure-bearing device according to claim 1, wherein the limiting assembly (17) comprises

Two support sleeves (171), two support sleeves (171) are respectively fixed with the end face of the fixed die plate (3), a limiting rod (172) penetrates through a sliding rod on the upper surface of each support sleeve (171), and a limiting block (173) is fixed at the top end of each limiting rod (172);

pivot (174), pivot (174) with the surface of fixed frame (11) rotates and connects, the external surface fastening of pivot (174) has cup jointed running gear (175), one side sliding connection that fixed frame (11) is close to stopper (173) has with running gear (175) meshing press down rack (176), one side sliding connection that stopper (173) was kept away from to fixed frame (11) has with running gear (175) meshing promote rack (177), promote rack (177) with be fixed with dead lever (178) between fixed block (10).

3. The eccentric die glue feeding gravity center rebalancing pressure-bearing device according to claim 2, wherein the limiting block (173) comprises a cylindrical section (1731) and an arc-shaped section (1732), the cylindrical section (1731) of the limiting block (173) is located between the fixed die plate (3) and the movable die plate (7), and the arc-shaped section (1732) of the limiting block (173) is located at one side of the movable die plate (7).

4. The eccentric die glue feeding gravity center rebalancing and pressure-bearing device according to claim 2, wherein the lifting rack (177) and the pressing rack (176) are arranged in a staggered manner, the surfaces of the lifting rack (177) and the pressing rack (176) are both provided with a limiting groove (18), and four limiting columns (19) respectively located inside the two limiting grooves (18) are fixed on the outer surface of the fixing frame (11).

5. The eccentric die glue feeding gravity center rebalancing and pressure-bearing device according to claim 1, wherein two symmetrically distributed clamping grooves (20) are formed in the side surface of the movable die plate (7), and the balance block (13) extends into the clamping grooves (20).

6. The eccentric die glue feeding gravity center rebalancing pressure-bearing device according to claim 1, wherein the section of the pushing block (15) is in a right triangle shape, and the contact surface of the pressing block (16) and the pushing block (15) is a matched inclined surface.