CN217373320U

CN217373320U - Anti-thimble blotting device

Info

Publication number: CN217373320U
Application number: CN202221209173.0U
Authority: CN
Inventors: 袁根弟; 吴千绪; 吴会权; 庞金权
Original assignee: Shanghai Genghua Electronic Technology Co ltd
Current assignee: Shanghai Genghua Electronic Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-09-06
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a prevent thimble blotting device, set up in including the die cavity the inner of die holder, the inner of base has been seted up the inner, and the inner of inner chamber installs the guide rail to the inboard of guide rail is provided with the slider, the cylinder is installed to the inner of inner chamber, and the output of cylinder is connected with the slider end, the upper end of base is provided with the fly leaf, and the bottom of fly leaf is connected with the bottom plate to the bottom hub connection of bottom plate has the pulley, the upper end of fly leaf is connected with the thimble, and the middle-end surface connection of thimble has the fixed disk. This prevent thimble blotting device is provided with thimble and contact plate, starts the cylinder during the drawing of patterns and makes its output drive the slider and remove, and the slider carries out the jacking to the pulley for the fly leaf drives the thimble and moves up in step, and the thimble releases the shaping product in the die cavity through the contact plate and realizes the drawing of patterns, and the contact plate can avoid thimble and injection moulding product's shell direct contact, does not have the thimble seal on the formed part.

Description

Anti-thimble blotting device

Technical Field

The utility model relates to an injection mold technical field specifically is a prevent thimble print device.

Background

The injection molding is to press the high-temperature melted plastic into a cavity in a mold, and form a required product workpiece after the plastic in the cavity is cooled and solidified

After the injection molding product is injection molded through the jig, the product after cooling molding is ejected out by using the ejector pins during demolding, and the ejector pin marks are usually arranged on the molded part, so that the attractiveness of the integral injection molding shell is affected.

Aiming at the problems, innovative design is urgently needed on the basis of the original injection mold.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent thimble blotting device to the injection moulding product who proposes in solving above-mentioned background art passes through tool injection moulding after, and the product after the cooling shaping all uses the thimble to ejecting it when the demoulding, often has the thimble seal on the formed part, influences the whole problem of moulding plastics the pleasing to the eye degree of shell.

In order to achieve the above object, the utility model provides a following technical scheme: the device comprises a base, a lower die holder, an upper die holder and a hydraulic rod, wherein the lower die holder is installed at the upper end of the base, the hydraulic rod is installed at the upper end of the base, and the upper die holder is installed at the output end of the hydraulic rod;

further comprising:

the die cavity is formed in the inner end of the lower die base, an inner cavity is formed in the inner end of the base, a guide rail is mounted at the inner end of the inner cavity, a sliding block is arranged on the inner side of the guide rail, an air cylinder is mounted at the inner end of the inner cavity, the output end of the air cylinder is connected with the tail end of the sliding block, a movable plate is arranged at the upper end of the base, the bottom end of the movable plate is connected with a bottom plate, the bottom end of the bottom plate is connected with a pulley in a shaft connection mode, an ejector pin is connected to the upper end of the movable plate, a fixed disc is connected to the outer surface of the middle end of the ejector pin, a spring is arranged on the outer surface of the ejector pin, the bottom end of the spring is connected with the upper surface of the fixed disc, a contact plate is arranged at the inner end of the die cavity, and the bottom end of the contact plate is connected with the top end of the ejector pin;

and the track groove is formed in the upper surface of the lower die base, and a sealing block is arranged at the inner end of the track groove.

Preferably, the inner end of the inner cavity is fixedly provided with a guide rail, the guide rail is in sliding connection with the sliding block, the top end of the sliding block is in an inclined structure, and the sliding block slides in the guide rail by pushing of the output end of the air cylinder.

Preferably, the tail end of the sliding block is fixedly connected with the output end of the air cylinder, the upper surface of the sliding block is attached to the outer surface of the pulley, and the upper end of the sliding block is used for jacking the pulley through movement of the sliding block.

Preferably, the movable plate and the bottom plate are of a fixed integrated structure, two groups of pulleys are symmetrically distributed at the bottom end of the bottom plate, the movable plate is connected with the lower die holder in a sliding mode, and the ejector pins are driven to jack the contact plate through upward movement of the movable plate.

Preferably, the top of fly leaf is equidistant to distribute and is installed the thimble, and the surface and the fixed disk of thimble are fixed connection to the fixed disk passes through the spring and constitutes elastic construction with the die holder.

Preferably, the track groove is rectangular in plan view, the track groove is fixedly connected with the sealing block, and the sealing performance of the cavity is improved by plugging the connecting gap by the sealing block.

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

1. the anti-thimble-marking device is provided with a thimble and a contact plate, when in demoulding, an air cylinder is started to enable the output end of the air cylinder to drive a slide block to move, the slide block jacks a pulley, so that a movable plate drives the thimble to move upwards synchronously, the thimble pushes out a formed product in a cavity through the contact plate to realize demoulding, the contact plate can prevent the thimble from being in direct contact with a shell of the injection-molded product, and the formed product is not provided with a thimble print;

2. this prevent thimble blotting device is provided with orbit groove and sealed piece, at upper die base and die holder laminating in-process, can extrude the sealed piece of orbit inslot, and sealed piece is compressed and is shrunk to the orbit inslot, and the sealed piece of rectangle will also carry out the shutoff to the joint gap around the die cavity simultaneously, increases the die cavity leakproofness.

Drawings

FIG. 1 is a schematic view of the overall front view structure of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the lower die holder of the present invention;

FIG. 3 is a schematic side view of the slider of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 5 is a schematic view of the lower mold base of the present invention.

In the figure: 1. a base; 2. a lower die holder; 3. an upper die holder; 4. a hydraulic rod; 5. a cavity; 6. an inner cavity; 7. a guide rail; 8. a slider; 9. a cylinder; 10. a movable plate; 11. a base plate; 12. a pulley; 13. a thimble; 14. fixing the disc; 15. a spring; 16. a contact plate; 17. a track groove; 18. and (6) sealing the block.

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 device for preventing a thimble from being imprinted comprises a base 1, a lower die holder 2, an upper die holder 3 and a hydraulic rod 4, wherein the lower die holder 2 is installed at the upper end of the base 1, the hydraulic rod 4 is installed at the upper end of the base 1, and the upper die holder 3 is installed at the output end of the hydraulic rod 4;

further comprising:

the die cavity 5 is formed in the inner end of the lower die base 2, the inner end of the base 1 is provided with an inner cavity 6, the inner end of the inner cavity 6 is provided with a guide rail 7, a sliding block 8 is arranged on the inner side of the guide rail 7, the inner end of the inner cavity 6 is provided with an air cylinder 9, the output end of the air cylinder 9 is connected with the tail end of the sliding block 8, the upper end of the base 1 is provided with a movable plate 10, the bottom end of the movable plate 10 is connected with a bottom plate 11, the bottom end of the bottom plate 11 is connected with a pulley 12 in a shaft mode, the upper end of the movable plate 10 is connected with an ejector pin 13, the outer surface of the middle end of the ejector pin 13 is connected with a fixed plate 14, the outer surface of the ejector pin 13 is provided with a spring 15, the bottom end of the spring 15 is connected with the upper surface of the fixed plate 14, the inner end of the die cavity 5 is provided with a contact plate 16, and the bottom end of the contact plate 16 is connected with the top end of the ejector pin 13;

and a track groove 17 which is arranged on the upper surface of the lower die holder 2, and the inner end of the track groove 17 is provided with a sealing block 18.

The inner fixed mounting of inner chamber 6 has guide rail 7, and guide rail 7 is sliding connection with slider 8, and the slider 8 top is slope column structure, the end and the cylinder 9 output of slider 8 are fixed connection, and the upper surface of slider 8 laminates with pulley 12 surface mutually, fly leaf 10 is fixed integral structure with bottom plate 11, and the bottom symmetric distribution of bottom plate 11 is provided with two sets of pulley 12, and fly leaf 10 is sliding connection with die holder 2, thimble 13 is installed to the equidistant distribution in top of fly leaf 10, and the surface of thimble 13 is fixed connection with fixed disk 14, and fixed disk 14 passes through spring 15 and constitutes elastic construction with die holder 2.

When a product after injection molding is subjected to demolding, the cylinder 9 in the inner cavity 6 can be started, the output end of the cylinder drives the slider 8 to move along the guide rail 7, the oblique structure of the upper end of the slider 8 lifts the pulley 12 which is attached and connected, the pulley 12 can drive the bottom plate 11 to drive the movable plate 10 to move upwards, the ejector pin 13 at the upper end of the movable plate 10 synchronously moves upwards, the ejector pin 13 can extrude the spring 15 through the fixed plate 14, the top end of the ejector pin 13 also drives the contact plate 16 to move upwards, so that the contact plate 16 pushes out a molded product in the cavity 5, the product is convenient to take out of the cavity 5, the cylinder 9 contracts after demolding is completed, the movable plate 10 automatically resets under the elastic action of the spring 15, the contact plate 16 can prevent the ejector pin 13 from directly contacting with a shell of the injection molded product, and the molded product is not provided with an ejector pin 13 print on the molded product.

The track groove 17 is rectangular in plan view, and the track groove 17 is fixedly connected with the sealing block 18.

When moulding plastics, hydraulic stem 4 shrink, make 3 lower surfaces of upper die base and 2 upper surfaces of die holder laminate mutually, in the die set laminating process, can extrude the sealed piece 18 in the orbit groove 17, sealed piece 18 is the elastic rubber material, sealed piece 18 receives the pressure back will contract in orbit groove 17, rectangular sealed piece 18 will also carry out the shutoff to the joint gap around the die cavity 5 simultaneously, increase the leakproofness of die cavity 5, high temperature raw materials can form the product in die cavity 5 afterwards.

The working principle is as follows: when the anti-thimble-marking device is used, according to the drawings of fig. 1-5, the device is firstly placed at a position to be worked, the cylinder 9 is started to enable the output end of the cylinder to drive the slider 8 to move along the guide rail 7, the oblique structure of the upper end of the slider 8 lifts the pulley 12 which is connected in an attaching manner along with the sliding of the slider 8, the pulley 12 enables the bottom plate 11 to drive the movable plate 10 to move upwards, the thimble 13 at the upper end of the movable plate 10 moves upwards synchronously, the thimble 13 extrudes the spring 15 through the fixed disc 14 at the moment, the top end of the thimble 13 also drives the contact plate 16 to move upwards, so that the contact plate 16 pushes out a molded product in the cavity 5, the product is convenient to take out from the cavity 5, the cylinder 9 contracts after the demolding is completed, the movable plate 10 automatically resets under the elastic action of the spring 15, and the contact plate 16 can prevent the thimble 13 from directly contacting with the shell of the injection molded product, the molded piece is not provided with a thimble 13 print;

in the laminating process of the upper die holder 3 and the lower die holder 2, the sealing block 18 in the track groove 17 can be extruded, the sealing block 18 is made of elastic rubber, the sealing block 18 contracts into the track groove 17 after being pressed, meanwhile, the rectangular sealing block 18 also seals a connecting gap around the cavity 5, the sealing performance of the cavity 5 is improved, then, high-temperature raw materials can form products in the cavity 5, and the overall practicability is improved.

Those not described in detail in this specification are within the skill of the art.

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 anti-thimble marking device comprises a base (1), a lower die holder (2), an upper die holder (3) and a hydraulic rod (4), wherein the lower die holder (2) is installed at the upper end of the base (1), the hydraulic rod (4) is installed at the upper end of the base (1), and the upper die holder (3) is installed at the output end of the hydraulic rod (4);

it is characterized by also comprising:

the die cavity (5) is arranged at the inner end of the lower die holder (2), an inner cavity (6) is formed in the inner end of the base (1), a guide rail (7) is installed at the inner end of the inner cavity (6), a sliding block (8) is arranged on the inner side of the guide rail (7), an air cylinder (9) is installed at the inner end of the inner cavity (6), the output end of the air cylinder (9) is connected with the tail end of the sliding block (8), a movable plate (10) is arranged at the upper end of the base (1), the bottom end of the movable plate (10) is connected with a bottom plate (11), a pulley (12) is connected with the bottom shaft of the bottom plate (11), a thimble (13) is connected to the upper end of the movable plate (10), a fixed plate (14) is connected to the outer surface of the middle end of the thimble (13), a spring (15) is arranged on the outer surface of the thimble (13), and the bottom end of the spring (15) is connected with the upper surface of the fixed plate (14), a contact plate (16) is arranged at the inner end of the cavity (5), and the bottom end of the contact plate (16) is connected with the top end of the thimble (13);

and the track groove (17) is formed in the upper surface of the lower die base (2), and a sealing block (18) is arranged at the inner end of the track groove (17).

2. The anti-thimble blot device according to claim 1, wherein the inner end of the inner cavity (6) is fixedly provided with a guide rail (7), the guide rail (7) is slidably connected with the slide block (8), and the top end of the slide block (8) is in an inclined structure.

3. The anti-thimble blot apparatus according to claim 1, wherein the end of the slider (8) is fixedly connected with the output end of the cylinder (9), and the upper surface of the slider (8) is attached to the outer surface of the pulley (12).

4. The anti-thimble blot device according to claim 1, wherein the movable plate (10) and the bottom plate (11) are of a fixed integrated structure, two sets of pulleys (12) are symmetrically distributed at the bottom end of the bottom plate (11), and the movable plate (10) is in sliding connection with the lower die holder (2).

5. The anti-thimble blot device according to claim 1, wherein the top ends of the movable plates (10) are provided with thimbles (13) in an equidistant distribution manner, the outer surfaces of the thimbles (13) are fixedly connected with the fixed disc (14), and the fixed disc (14) and the lower die holder (2) form an elastic structure through a spring (15).

6. The anti-pin blot apparatus according to claim 1, wherein the track groove (17) is rectangular in top view, and the track groove (17) is fixedly connected with the sealing block (18).