CN218342735U - Full-hot injection mold - Google Patents

Abstract

The utility model discloses a total heat injection mold, including movable mould bottom plate and movable mould bedplate, the top of movable mould bottom plate is fixed with the movable mould backup pad, and the top of movable mould backup pad installs the movable mould main part, the top of movable mould main part is provided with the optical part becomes the die cavity, the cover half main part is installed through the pin in the bottom of movable mould bedplate, the inside central point of movable mould bedplate puts the department and installs the runner cover, the inside central point of cover half main part puts the department and is provided with the notes material chamber, notes material chamber and runner cover switch on each other, movable mould main part and cover half main part are through direction sliding construction interconnect. The utility model discloses utilize last rubber column, lower rubber column to reduce the striking dynamics of movable mould main part, cover half main part compound die in-process to forming effective protection to the contact surface of the two, guaranteeing that the two terminal surface is in smoothness, parallel and level state, reducing the compound die wearing and tearing of movable mould, cover half, prolonging the life of mould.

Description

Full-hot injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is full hot injection mold.

Background

The injection mold generally comprises a movable mold and a fixed mold, which can be separated and combined, wherein a workpiece is taken out when the movable mold and the fixed mold are separated, and a blank is injected into a mold cavity for forming when the fixed mold and the fixed mold are combined. The mold is a precise tool, has a complex shape, bears the expansion force of a blank, and has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, an optical product produced by using an injection molding technology has the characteristics of low price, light weight, convenience for mass replication, high consistency and the like, when the optical injection mold is designed, a Lens part is convenient for processing and can be detached into a mold core insert, a line cutting hole is reserved in the mold core, and the Lens mold core insert is arranged into the mold core line cutting hole from the bottom of the mold core to form a whole during installation; when maintenance demolishs, use the cotton swab to knock out backward gently from Lens mould benevolence mold insert openly, however current optical product injection mold is at the compound die in-process, and moving die utensil and fixed die joint department are mostly hard contact, and contact force is too big and lead to easily moving die utensil and fixed die joint department to receive wearing and tearing, striking damage after using for a long time, causes sealing performance decline behind moving die utensil and the fixed die compound die, causes adverse effect to optical product's injection moulding.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full hot injection mold to propose the problem that injection mold movable mould and fixed mould laminating department are mostly hard contact in solving above-mentioned background art, sealing performance descends after long-time use movable mould and fixed mould compound die.

In order to achieve the above object, the utility model provides a following technical scheme: full hot injection mold, including movable mould bottom plate and movable mould bedplate, the top of movable mould bottom plate is fixed with the movable mould backup pad, just the movable mould main part is installed on the top of movable mould backup pad, the top of movable mould main part is provided with optical component shaping chamber, the cover half main part is installed through the pin to the bottom of movable mould bedplate, the inside central point of movable mould bedplate puts the department and installs the runner cover, the inside central point of cover half main part puts the department and is provided with the notes material chamber, and notes material chamber and runner cover switch on each other, movable mould main part and cover half main part are through direction sliding structure interconnect, the faying face of movable mould main part and cover half main part is provided with secondary laminating shock-absorbing structure, the bottom of movable mould backup pad is provided with interior concave part, the inside of interior concave part is provided with shock-absorbing structure.

Preferably, secondary laminating shock-absorbing structure includes rubber column, lower rubber column, go up the rubber column and install the both ends in the inside of cover half main part, the both ends in the inside of movable mould main part are installed to lower rubber column, go up the rubber column on same vertical line, the tip plane of going up the rubber column is higher than cover half main part tip plane 0.1 millimeter to 0.2 millimeter, the tip plane of lower rubber column is higher than movable mould main part tip 0.1 millimeter to 0.2 millimeter.

Preferably, the guiding sliding structure comprises four groups of shoulder guide sleeves arranged in the fixed die main body and four groups of positioning pin columns arranged in the movable die main body, and the positioning pin columns are connected with the shoulder guide sleeves in a sliding manner.

Preferably, shock-absorbing structure is including installing the push pedal on movable mould bottom plate top, the push rod fixed plate is installed on the push pedal top, the shock pad is installed to the both sides on push rod fixed plate top, the top of shock pad and the bottom fixed connection of movable mould backup pad.

Preferably, guide pillars are mounted at two ends of the inside of the movable mold base plate, top ends of the guide pillars extend into the push rod fixing plate, and top ends of the guide pillars are fixedly connected with the push rod fixing plate.

Preferably, a straight push rod is installed at the center position inside the push rod fixing plate, and the top end of the straight push rod extends to the inside of the movable mold main body.

Compared with the prior art, the beneficial effects of the utility model are that: this full hot injection mold is through being provided with the structure of mutually supporting such as rubber post and shock-absorbing structure, at compound die in-process movable mould main part, the lower rubber post of cover half main part contact surface, go up rubber post and contact each other, utilize the rubber post, lower rubber post reduces the movable mould main part, the striking dynamics of cover half main part compound die in-process, thereby form effective protection to the contact surface of the two, guarantee that the two terminal surface is in smoothly, the parallel and level state, and along with the increase of outside pneumatic cylinder thrust, lower rubber post, it is the extrusion to go up the rubber post, the compression state, make injection mold be in sealed state of moulding plastics, help optical product work piece stable forming, and pass through the guide pillar, the push pedal, mutually supporting of push rod fixed plate and shock pad, as first shock attenuation component, tentatively reduce the movable mould main part, the striking dynamics of cover half main part when the instantaneous contact, reduce the compound die wearing and tearing of the two, the life of extension mould.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a side view, sectional and schematic structural view of the present invention;

fig. 4 is a schematic diagram of the explosion structure of the present invention;

fig. 5 is a schematic diagram of the explosion structure of the present invention;

in the figure: 1. a movable mold base plate; 2. a movable mold supporting plate; 201. an inner concave portion; 202. a straight push rod; 203. a push rod fixing plate; 204. pushing the plate; 205. a shock pad; 206. a guide post; 3. a movable mold main body; 301. a lower rubber column; 302. positioning the pin column; 303. an optical piece molding cavity; 4. a fixed die main body; 401. mounting a rubber column; 402. a material injection cavity; 403. a guide sleeve with a shoulder; 5. a movable mold base plate; 501. a pin; 6. and (4) a sprue bush.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment: the total-heat injection mold comprises a movable mold base plate 1 and a movable mold base plate 5, wherein a movable mold support plate 2 is fixed at the top end of the movable mold base plate 1, a movable mold main body 3 is installed at the top end of the movable mold support plate 2, an optical part forming cavity 303 is arranged at the top end of the movable mold main body 3, a fixed mold main body 4 is installed at the bottom end of the movable mold base plate 5 through a pin 501, a sprue bush 6 is installed at the central position inside the movable mold base plate 5, the sprue bush 6 is connected with a discharge port of an injection molding machine, a material injection cavity 402 is arranged at the central position inside the fixed mold main body 4, and the material injection cavity 402 is communicated with the sprue bush 6;

the movable mold base plate 1 is connected with the top end of a piston rod of an external hydraulic cylinder, the movable mold base plate 1, the movable mold supporting plate 2 and the movable mold main body 3 are pushed by the hydraulic cylinder to move towards the direction of the fixed mold main body 4, and the injection molding machine injects high-temperature molten materials into the optical piece molding cavity 303 through the sprue bush 6 and the material injection cavity 402, so that the high-temperature molten materials are cooled and molded in the optical piece molding cavity 303 between the movable mold main body 3 and the fixed mold main body 4 until the high-temperature molten materials in the optical piece molding cavity 303 are cooled and molded into an optical product workpiece;

the movable mold main body 3 and the fixed mold main body 4 are connected with each other through a guide sliding structure, and a secondary laminating damping structure is arranged on the combination surface of the movable mold main body 3 and the fixed mold main body 4;

the secondary laminating shock absorption structure comprises an upper rubber column 401 and a lower rubber column 301, wherein the upper rubber column 401 is installed at two ends inside a fixed die main body 4, the lower rubber column 301 is installed at two ends inside a movable die main body 3, the lower rubber column 301 and the upper rubber column 401 are on the same vertical line, the end part plane of the upper rubber column 401 is 0.1 mm to 0.2 mm higher than the end part plane of the fixed die main body 4, the end part plane of the lower rubber column 301 is 0.1 mm to 0.2 mm higher than the end part of the movable die main body 3, the lower rubber column 301 and the upper rubber column 401 are in an extrusion and compression state along with the increase of the thrust of an external hydraulic cylinder, the parallel level and the sealing performance of the end surfaces of the movable die main body 3 and the fixed die main body 4 are ensured, an injection mold is in a sealed injection molding state, and stable molding of an optical product workpiece is facilitated;

after the movable mold main body 3 and the fixed mold main body 4 are superposed, the lower rubber column 301 and the upper rubber column 401 of the contact surfaces of the movable mold main body 3 and the fixed mold main body 4 are contacted with each other, and the impact force in the mold closing process of the movable mold main body 3 and the fixed mold main body 4 is reduced by utilizing the upper rubber column 401 and the lower rubber column 301, so that the contact surfaces of the movable mold main body 3 and the fixed mold main body 4 are effectively protected, and the end surfaces of the movable mold main body and the fixed mold main body are ensured to be in a smooth and parallel state;

the bottom end of the movable mold supporting plate 2 is provided with an inner concave part 201, a shock absorption structure is arranged inside the inner concave part 201, the shock absorption structure comprises a push plate 204 arranged at the top end of the movable mold base plate 1, a push rod fixing plate 203 is arranged at the top end of the push plate 204, shock absorption pads 205 are arranged on two sides of the top end of the push rod fixing plate 203, and the top ends of the shock absorption pads 205 are fixedly connected with the bottom end of the movable mold supporting plate 2;

guide posts 206 are mounted at two ends of the inside of the movable mold base plate 1, the top ends of the guide posts 206 extend to the inside of the push rod fixing plate 203, the top ends of the guide posts 206 are fixedly connected with the push rod fixing plate 203, and when the external hydraulic cylinder pushes the movable mold main body 3 to move towards the direction of the fixed mold main body 4, the guide posts 206, the push plate 204, the push rod fixing plate 203 and the shock absorption pad 205 are matched with each other to serve as a first shock absorption element;

a straight push rod 202 is installed at the central position inside the push rod fixing plate 203, and the top end of the straight push rod 202 extends to the inside of the movable mold main body 3;

the impact strength of the movable mold main body 3 and the fixed mold main body 4 in instant contact is reduced primarily by using a damping structure, the mold closing abrasion of the two is reduced, and the service life of the mold is prolonged;

the guiding sliding structure comprises four groups of shoulder guide sleeves 403 arranged inside the fixed die main body 4 and four groups of positioning pin columns 302 arranged inside the movable die main body 3, the positioning pin columns 302 are connected with the shoulder guide sleeves 403 in a sliding mode, when the movable die main body 3 and the fixed die main body 4 are separated from each other, the positioning pin columns 302 and the shoulder guide sleeves 403 slide relatively, namely, the positioning pin columns 302 slide inside the shoulder guide sleeves 403, the matching and separating accuracy of the movable die main body 3 and the fixed die main body 4 is guaranteed through the mutual matching of the positioning pin columns 302 and the shoulder guide sleeves 403, and the injection accuracy of the sprue bush 6 and the injection cavity 402 is guaranteed.

When the injection molding machine is used, firstly, the sprue bush 6 is connected with a discharge port of the injection molding machine, the top end of a piston rod of the movable mold base plate 1 is connected with the top end of an external hydraulic cylinder, the hydraulic cylinder is used for pushing the movable mold base plate 1, the movable mold supporting plate 2 and the movable mold main body 3 to move towards the direction of the fixed mold main body 4 until the movable mold main body 3 and the fixed mold main body 4 are superposed and sealed, at the moment, the injection molding machine injects high-temperature molten materials into the optical part molding cavity 303 through the sprue bush 6 and the injection cavity 402, so that the high-temperature molten materials are cooled and molded in the optical part molding cavity 303 between the movable mold main body 3 and the fixed mold main body 4 until the high-temperature molten materials in the optical part molding cavity 303 are cooled and molded into an optical product workpiece, and after the movable mold main body 3 and the fixed mold main body 4 are superposed, the lower rubber column 301 and the upper rubber column 401 of the contact surface of the movable mold main body 3 and the fixed mold main body 4 are contacted with each other, the upper rubber column 401 and the lower rubber column 301 are utilized to reduce the impact force during the die assembly process of the movable die main body 3 and the fixed die main body 4, so that the contact surfaces of the upper rubber column 401 and the fixed die main body 4 are effectively protected, the end surfaces of the upper rubber column 301 and the fixed die main body are ensured to be in a smooth and parallel state, the lower rubber column 301 and the upper rubber column 401 are in an extrusion and compression state along with the increase of the thrust of an external hydraulic cylinder, the parallel and parallel state and the sealing performance of the end surfaces of the movable die main body 3 and the fixed die main body 4 are ensured, the injection die is in a sealed injection state, the stable forming of an optical product workpiece is facilitated, when the external hydraulic cylinder pushes the movable die main body 3 to move towards the direction of the fixed die main body 4, the impact force during the instant contact of the movable die main body 3 and the fixed die main body 4 is preliminarily reduced as a first damping element through the mutual matching of the guide pillar 206, the push plate 204, the push plate 203 and the damping pad 205, the service life of the die is prolonged.

Claims (6)

1. Full hot injection mold, its characterized in that: including movable mould bottom plate (1) and movable mould bedplate (5), the top of movable mould bottom plate (1) is fixed with movable mould backup pad (2), just movable mould main part (3) are installed on the top of movable mould backup pad (2), the top of movable mould main part (3) is provided with optical component molding chamber (303), cover half main part (4) are installed through pin (501) in the bottom of movable mould bedplate (5), inside central point department of putting of movable mould bedplate (5) installs runner cover (6), the inside central point department of putting of cover half main part (4) is provided with notes material chamber (402), and notes material chamber (402) and runner cover (6) switch on each other, movable mould main part (3) and cover half main part (4) are through direction sliding structure interconnect, the faying face of movable mould main part (3) and cover half main part (4) is provided with secondary laminating shock-absorbing structure, the bottom of movable mould backup pad (2) is provided with interior concave part (201), the inside of interior concave part (201) is provided with shock-absorbing structure.

2. The full heat injection mold according to claim 1, wherein: the secondary laminating shock-absorbing structure includes rubber column (401), lower rubber column (301), go up rubber column (401) and install the both ends in cover half main part (4) inside, install the both ends in movable mould main part (3) inside rubber column (301) down, rubber column (301), go up rubber column (401) on same vertical line down, the tip plane of going up rubber column (401) is higher than cover half main part (4) tip plane 0.1 millimeter to 0.2 millimeter, the tip plane of rubber column (301) is higher than movable mould main part (3) tip 0.1 millimeter to 0.2 millimeter down.

3. The full heat injection mold according to claim 1, wherein: the guide sliding structure comprises four groups of shoulder guide sleeves (403) arranged inside the fixed die main body (4) and four groups of positioning pin columns (302) arranged inside the movable die main body (3), and the positioning pin columns (302) are connected with the shoulder guide sleeves (403) in a sliding mode.

4. The full heat injection mold according to claim 1, wherein: shock-absorbing structure is including installing push pedal (204) on movable mould bottom plate (1) top, push rod fixed plate (203) are installed on push pedal (204) top, shock pad (205) are installed to the both sides on push rod fixed plate (203) top, the top of shock pad (205) and the bottom fixed connection of movable mould backup pad (2).

5. The full heat injection mold according to claim 4, wherein: guide posts (206) are mounted at two ends of the inner part of the movable mold base plate (1), the top ends of the guide posts (206) extend into the push rod fixing plate (203), and the top ends of the guide posts (206) are fixedly connected with the push rod fixing plate (203).

6. The full heat injection mold according to claim 4, wherein: the center position in the push rod fixing plate (203) is provided with a straight push rod (202), and the top end of the straight push rod (202) extends to the inside of the movable mould main body (3).

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