CN210940280U

CN210940280U - A mould for producing printer shell

Info

Publication number: CN210940280U
Application number: CN201921949288.1U
Authority: CN
Inventors: 孔祥赏
Original assignee: Xiamen Dagu Industry & Trade Co ltd
Current assignee: Xiamen Dagu Industry & Trade Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-07-07
Anticipated expiration: 2029-11-13

Abstract

The utility model discloses a mould for producing printer shell, which relates to the technical field of mould, the key points of the technical proposal comprises a top plate, an upper mould and a lower mould which are arranged from top to bottom in sequence, a cavity is formed between the upper mould and the lower mould, a mounting groove communicated with the cavity is arranged in the upper mould, a forming hole for forming a positioning column is arranged in the lower mould, a forming block for forming a key hole is arranged in the mounting groove, the forming block slides in the mounting groove, a chute is arranged on the forming block, a push block sliding in the chute is fixed on the top plate, a wedge-shaped guide block is arranged on one side of the push block contacting with the chute, a guide groove which is interlocked with the guide block is arranged in the chute, when the push block moves upwards, the forming block is separated from the key hole, the utility model has the advantages of simultaneously forming the key hole and the positioning column, the production efficiency of the product is improved.

Description

A mould for producing printer shell

Technical Field

The utility model relates to a mould, more specifically say that it relates to a mould for producing printer shell.

Background

With the rapid development of polymer plastic industry, the application range of polymer plastic products is also expanding, plastic shell covers are also widely used in printers, injection molds are tools for producing plastic products, the working principle is that molten plastic is injected into a forming mold cavity, the molten plastic is cooled and shaped in the cavity, then an upper mold and a lower mold are separated, and the products are ejected from the mold cavity through an ejection system.

At present, there is a printer housing in the known market, as shown in fig. 1, generally include panel 1, reference column 2 and buckle 3 set up perpendicularly in the lower surface of panel 1, be provided with opening 4 on the panel 1, the one end that opening 4 was kept away from to panel 1 leans out and is provided with inclined plane 5, set up on inclined plane 5 and press key hole 6.

However, above-mentioned printer housing is when the preparation, because the axis of reference column and the axis of key hole have the contained angle, consequently be difficult to one shot forming when using the mould shaping, generally earlier with the reference column shaping after, take out printer housing again, then process out the key hole through other equipment, this kind of preparation mode is comparatively troublesome, influences the production efficiency of product, consequently still remains the space of improving.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a mould for producing printer housing, its advantage lies in can the shaping simultaneously press key hole and reference column, improves the production efficiency of product.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a mould for producing printer housing, includes roof, last mould and the lower mould that from top to bottom sets gradually, constitute the die cavity between last mould and the lower mould, go up seted up in the mould with the mounting groove of die cavity intercommunication, set up the shaping hole that is used for the shaping reference column in the lower mould, be provided with the shaping piece that is used for the shaping button hole in the mounting groove, the shaping piece slide in the mounting groove, the spout has been seted up on the shaping piece, be fixed with on the roof and slide and be in push block in the spout, be provided with the one side that is wedge-shaped guide block with the spout contact on the push block, be provided with the guide way that bonds mutually with the guide block in the spout, work as during the push block upward movement, the shaping piece breaks away from and presses.

By adopting the technical scheme, when the die is closed, plastic cement is injected into the die cavity, and the positioning column and the key hole can be respectively formed through the forming hole and the forming block; when the drawing of patterns, the roof removes to keeping away from last mould direction to drive the ejector pad and slide to keeping away from last mould direction, the guide block slides in the guide way, drives the shaping piece and slides to keeping away from the button hole direction in the mounting groove, can make the shaping pole break away from the button hole.

Compared with the original mode of independently forming the key hole, the scheme can form the positioning column and the key hole at one time, and the production efficiency of products is improved.

The utility model discloses further set up to: the mould is characterized in that a wedge-shaped ejector block is arranged in the upper mould, the wedge surface of the ejector block is attached to the side wall of the forming block, and the ejector block is fixed in the mounting groove through a bolt.

Through adopting above-mentioned technical scheme, because the size of key hole is generally different on the printer shell of different models, consequently need to change different shaping pieces, when needs change shaping piece, only need rotate the bolt, take out the kicking block from last mould, make the shaping piece break away from the ejector pad again, can follow the mould with the shaping piece and take out.

The utility model discloses further set up to: a through groove is formed in the wedge-shaped surface of the ejector block, and the push block slides in the through groove.

Through adopting above-mentioned technical scheme, the setting that leads to the groove can increase the scope of sliding of ejector pad, can correspondingly reduce the volume of shaping piece, makes things convenient for the ejector pad to drive the shaping piece and slides in the mounting groove.

The utility model discloses further set up to: and a plurality of balls are embedded on the inner wall of the through groove.

Through adopting above-mentioned technical scheme, the setting of ball can reduce the ejector pad at the frictional resistance who leads to the inslot, makes things convenient for the ejector pad to slide at leading to the inslot.

The utility model discloses further set up to: the wedge-shaped surface of the top block is provided with a limiting groove, the forming block is provided with a limiting block which slides in the limiting groove, one end of the limiting groove is an opening, and the opening of the limiting groove faces the lower die.

Through adopting above-mentioned technical scheme, the distance that the wedge face that can restrict the shaping piece along the kicking block rises is set up to spacing groove and stopper, when avoiding the kicking block rebound, is difficult to reset after the shaping piece breaks away from the kicking block.

The utility model discloses further set up to: and a spring is fixed on the inner wall of one side of the limiting groove facing the lower die, and one end of the spring is abutted to the limiting block.

Through adopting above-mentioned technical scheme, the setting of spring can promote the shaping piece and slide to the mould direction under mutually when the compound die, shortens the shaping piece and removes required time to being close to lower mould one side, improves the production efficiency of product.

The utility model discloses further set up to: chamfers are arranged on two sides of the guide block along the length direction of the guide block.

Through adopting above-mentioned technical scheme, the wearing and tearing that corner and guide way that can reduce the guide block produced are avoided long-time after using because of producing between guide block and the guide way not hard up and influence the product precision to the setting of chamfer.

The utility model discloses further set up to: the forming hole is internally and slidably connected with a push rod, an air inlet channel is arranged in the push rod, and a plurality of air outlets communicated with the air inlet channel are formed in the outer wall of one end, close to the positioning column, of the push rod.

Through adopting above-mentioned technical scheme, when the drawing of patterns, only need to ventilate in the inlet channel, make the air pass through the gas outlet blowout, make reference column and push rod separation under the promotion of air, can avoid the product to receive the damage by push rod ejecting time to improve product precision and production efficiency.

To sum up, the utility model has the advantages of it is following:

1. when the die is closed, plastic cement is injected into the die cavity, and the positioning column and the key hole can be respectively formed through the forming hole and the forming block; when demoulding, the top plate moves towards the direction far away from the upper die and drives the push block to slide towards the direction far away from the upper die, the guide block slides in the guide groove and drives the forming block to slide towards the direction far away from the key hole in the mounting groove, and then the forming rod can be separated from the key hole;

2. the top block is detachably connected in the lower die, so that the forming block can be conveniently replaced;

3. through setting up stopper and spacing groove, when can avoiding the ejector pad rebound, be difficult to reset after the shaping piece breaks away from the ejector pad.

Drawings

FIG. 1 is a schematic view showing the overall structure of a printer casing in the background art;

FIG. 2 is a schematic sectional view of the present embodiment;

FIG. 3 is a schematic cross-sectional view of the protruded molding block in the present embodiment;

FIG. 4 is an exploded view of the forming block, the push block and the ejector block in the present embodiment;

FIG. 5 is a schematic sectional view showing the connecting structure of the protruded molding block and the top block in this embodiment;

fig. 6 is an enlarged schematic view of a in fig. 3.

Description of reference numerals: 1. a panel; 2. a positioning column; 3. buckling; 4. an opening; 5. an inclined surface; 6. a key hole; 7. a top plate; 8. an upper die; 9. a lower die; 10. a cavity; 11. mounting grooves; 12. forming a block; 13. a top block; 14. a chute; 15. a push block; 16. a guide block; 17. a guide groove; 18. a through groove; 19. a ball bearing; 20. a limiting groove; 21. a limiting block; 22. a spring; 23. a push rod; 24. an air intake passage; 25. an air outlet; 26. and (5) forming holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a mould for producing printer housing, as shown in fig. 2 and 3, includes roof 7, last mould 8 and the lower mould 9 that from top to bottom sets gradually, constitutes die cavity 10 between going up mould 8 and the lower mould 9, has seted up the mounting groove 11 with die cavity 10 intercommunication in going up the mould 8, and the axis direction of mounting groove 11 is perpendicular to the inclined plane 5 on the panel 1, has seted up the shaping hole 26 that is used for shaping reference column 2 in the lower mould 9.

Combine as shown in fig. 4, sliding connection has a shaping piece 12 that is used for shaping button hole 6 in mounting groove 11, be wedge-shaped kicking block 13 through the bolt fastening in mounting groove 11, the wedge face of kicking block 13 is laminated mutually with shaping piece 12 towards the lateral wall of lower mould 9 one side, spout 14 has been seted up on shaping piece 12, be fixed with the ejector pad 15 that slides in spout 14 on the roof 7, be provided with on the ejector pad 15 with one side of spout 14 contact and be wedge-shaped guide block 16, guide block 16 is provided with the chamfer along its length direction's both sides, guide block 16 is close to the one end downward sloping of kicking block 13, be provided with the guide way 17 of building mutually with guide block 16 in the spout 14, when ejector pad 15 upwards moves, shaping piece 12 breaks away from button hole 6.

As shown in fig. 4, a through groove 18 is formed in the wedge-shaped surface of the ejector block 13, and the push block 15 slides in the through groove 18, so that the sliding range of the push block 15 can be increased through the through groove 18 without affecting the guiding capability of the guide block 16, the volume of the forming block 12 can be correspondingly reduced, and the push block 15 can conveniently drive the forming block 12 to slide in the mounting groove 11.

Further, in order to reduce the frictional resistance of the pushing block 15 in the through groove 18 and facilitate the sliding of the pushing block 15 in the through groove 18, a plurality of balls 19 are embedded on the inner wall of the through groove 18 in the present embodiment.

As shown in fig. 5, a limiting groove 20 is formed on the wedge-shaped surface of the top block 13, a limiting block 21 sliding in the limiting groove 20 is fixed on the forming block 12, one end of the limiting groove 20 is open, and the opening faces the lower die 9, the sliding distance of the forming block 12 on the top block 13 is limited by the limiting groove 20, the upward sliding distance of the push block 15 can be limited, and therefore the phenomenon that the forming block 12 is separated from the push block 15 due to excessive upward sliding of the push block 15 is avoided.

Furthermore, a spring 22 is fixed on the inner wall of the side of the limiting groove 20 facing the lower die 9, and one end of the spring 22 abuts against the limiting block 21. When demoulding, the limiting block 21 slides upwards along the limiting groove 20, and the spring 22 is in a compressed state; when the die is closed, the spring 22 recovers deformation to push the limiting block 21 to slide downwards along the limiting groove 20, so that the molding block 12 can be accelerated to be inserted into the die cavity 10, and the production efficiency of products is improved.

As shown in fig. 6, a push rod 23 is slidably connected in the forming hole 26, an air inlet channel 24 is arranged in the push rod 23, and a plurality of air outlets 25 passing through the air inlet channel 24 are formed in the outer wall of one end of the push rod 23 close to the positioning column 2. When demoulding, only the air is needed to be ventilated into the air inlet channel 24, so that the air is sprayed out through the air outlet 25, the product is separated from the push rod 23 under the pushing of the air, the product can be prevented from being damaged when being ejected out by the push rod 23, the forming quality of the product is improved, and demoulding is convenient.

The utility model discloses a working process and beneficial effect as follows: when the die is closed, injection molding is carried out in the die cavity 10, plastic is accumulated around the molding block 12, the key hole 6 can be molded, and the positioning column 2 is molded in the molding hole 26; when the drawing of patterns, make roof 7 rebound earlier, can drive ejector pad 15 rebound, shaping piece 12 slides along mounting groove 11 is upwards under the effect of guide block 16 and guide way 17 to make shaping piece 12 break away from and press key hole 6, make mould 8 and lower mould 9 separation again, it is jet-propelled through gas outlet 25, make reference column 2 break away from shaping hole 26, can take out the product, consequently can once only shaping reference column 2 with press key hole 6, improve the production efficiency of product.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a mould for producing printer housing, includes roof (7), last mould (8) and lower mould (9) that from top to bottom sets gradually, go up between mould (8) and the lower mould (9) and constitute die cavity (10), go up seted up in mould (8) with mounting groove (11) of die cavity (10) intercommunication, set up forming hole (26) that are used for shaping reference column (2) in lower mould (9), its characterized in that: be provided with in mounting groove (11) and be used for shaping piece (12) of key hole (6), shaping piece (12) slide in mounting groove (11), spout (14) have been seted up on shaping piece (12), be fixed with on roof (7) and slide ejector pad (15) in spout (14), the one side of contacting with spout (14) on ejector pad (15) is provided with and is wedge-shaped guide block (16), be provided with guide way (17) of bonding mutually with guide block (16) in spout (14), work as during ejector pad (15) upward movement, shaping piece (12) break away from key hole (6).

2. A mold for producing a printer housing according to claim 1, wherein: go up be provided with in mould (8) and be wedge-shaped kicking block (13), the wedge face of kicking block (13) with the lateral wall of shaping piece (12) is laminated mutually, kicking block (13) are fixed in through the bolt in mounting groove (11).

3. A mold for producing a printer housing according to claim 2, wherein: a through groove (18) is formed in the wedge-shaped surface of the ejector block (13), and the push block (15) slides in the through groove (18).

4. A mold for producing a printer housing according to claim 3, wherein: a plurality of balls (19) are embedded on the inner wall of the through groove (18).

5. A mold for producing a printer housing according to claim 2, wherein: the wedge-shaped surface of the ejector block (13) is provided with a limiting groove (20), the forming block (12) is provided with a limiting block (21) which slides in the limiting groove (20), one end of the limiting groove (20) is an opening, and the opening of the limiting groove (20) faces the lower die (9).

6. A mold for producing a printer housing according to claim 5, wherein: and a spring (22) is fixed on the inner wall of one side of the limiting groove (20) facing the lower die (9), and one end of the spring (22) is abutted to the limiting block (21).

7. A mold for producing a printer housing according to claim 1, wherein: the guide block (16) is provided with chamfers along both sides of the length direction thereof.

8. A mold for producing a printer housing according to claim 1, wherein: the forming hole (26) is connected with a push rod (23) in a sliding mode, an air inlet channel (24) is arranged in the push rod (23), and a plurality of air outlets (25) communicated with the air inlet channel (24) are formed in the outer wall of one end, close to the positioning column (2), of the push rod (23).