CN210257022U

CN210257022U - Packaging box cover die for numerical control machine tool controller

Info

Publication number: CN210257022U
Application number: CN201920124528.8U
Authority: CN
Inventors: 邓其贵; 马立军; 刘恒; 谢帮灵
Original assignee: Liuzhou Vocational and Technical College
Current assignee: Liuzhou Vocational and Technical College
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-04-07
Anticipated expiration: 2029-01-24

Abstract

A numerical control machine controller packaging box cover mold relates to an injection mold, and comprises a fixed mold, a movable mold, a mold frame and a demolding mechanism, wherein the fixed mold comprises a fixed mold plate, the movable mold comprises a movable mold plate, the mold frame comprises mold feet and a guide pillar and guide sleeve assembly, the demolding mechanism comprises a thimble assembly and an inclined guide pillar and slide block mechanism, a cavity insert is installed in the fixed mold plate, and a core insert is installed in the movable mold plate; the inclined guide pillar sliding block mechanism comprises an inclined guide pillar sliding block main body mechanism and a secondary ejection mechanism; the inclined guide pillar slide block main body mechanism and the secondary ejection mechanism are arranged on the fixed die plate and the movable die plate. The utility model discloses can effectively solve the local drawing of patterns problem of inner wall back-off, outside limit side opening, outer wall recess or boss, can realize the automatic injection moulding production of numerical control machine tool controller encapsulation lid, the mechanism sets up ingeniously, dependable performance, low in manufacturing cost, easily uses widely.

Description

Packaging box cover die for numerical control machine tool controller

Technical Field

The utility model relates to an injection mold, especially a digit control machine tool controller encapsulation lid mould.

Background

Because the operating environment of the numerical control machine tool controller is relatively severe, the electronic elements need to be specially packaged to protect the elements from being damaged. Sheet metal parts are generally adopted for packaging of packaging components with certain structures, and plastic shells are generally adopted for packaging of packages with low structural strength requirements. The plastic part packaging part can be assembled by adopting a single plastic shell or a plurality of plastic parts, and during injection molding, the plastic part also needs to ensure certain molding precision, which is generally controlled at the precision grade of MT 4. The packaging box cover of the numerical control machine controller comprises an upper packaging box cover and a lower packaging box cover, wherein the upper packaging box cover is wide at one end and small in the middle, the other end is in a single-side-wall shape (as shown in figures 6-7), the upper packaging box cover has three characteristics influencing the design of a mould, one is inner wall reverse buckling T1 formed by a side wall boss, the other is a side hole T2 on the outer side, and the other is an outer wall groove or boss T3. The shape of the lower packaging box cover is similar to that of the upper packaging box cover, and the characteristics influencing the design of the mold are also the same as those of the upper packaging box cover (as shown in figures 8-9). Therefore, how to solve the problem of local demoulding of the characteristics of the upper and lower packaging box covers is a problem which needs to be solved urgently by a packaging box cover mould of a numerical control machine controller.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a digit control machine tool controller encapsulation lid mould to effectively solve the local drawing of patterns problem of inner wall back-off, outside limit side opening, outer wall recess or boss of digit control machine tool controller encapsulation lid.

The technical scheme for solving the technical problems is as follows: a numerical control machine controller packaging box cover mold comprises a fixed mold, a movable mold, a mold base and a demolding mechanism, wherein the fixed mold comprises a fixed mold plate, the movable mold comprises a movable mold plate, the mold base comprises mold feet and a guide pillar and guide sleeve assembly, the demolding mechanism comprises a thimble assembly, a cavity insert is installed in the fixed mold plate, and a core insert is installed in the movable mold plate; the demoulding mechanism also comprises an inclined guide pillar and sliding block mechanism, and the inclined guide pillar and sliding block mechanism comprises an inclined guide pillar and sliding block main body mechanism and a secondary ejection mechanism; the inclined guide pillar slide block main body mechanism and the secondary ejection mechanism are arranged on the fixed die plate and the movable die plate.

The utility model discloses a further technical scheme is: the main mechanism of the inclined guide post and the slide block comprises an inclined guide post, a slide block pressing plate and a slide block; the slide block is arranged between the fixed template and the movable template, the upper end of the inclined guide post is arranged on the cavity insert, and the lower end of the inclined guide post is arranged in the slide block; the slide block pressing plate is tightly pressed and installed outside the slide block.

The utility model discloses a further technical scheme is: the inclined guide pillar and slide block main body mechanism further comprises a slide block wear-resistant bottom plate, and the slide block wear-resistant bottom plate is installed between the movable template and the bottom of the slide block.

The utility model discloses a further technical scheme is again: the sliding block wear-resistant bottom plate is also provided with a sliding block glass bead for positioning, and the bottom of the sliding block is provided with a glass bead groove matched with the sliding block glass bead; the wear-resisting bottom plate of slider still install slider spacing screw in the outside of slider.

The utility model discloses a further technical scheme is: the secondary ejection mechanism comprises a spring pin insert, a first headless screw, a spring sleeve, a first spring, a first side type pin, a second spring and a second headless screw; the elastic needle insert is arranged on the core insert, the spring sleeve is arranged in the elastic needle insert, the first headless screw, the first spring and the starting end of the first side type needle are sequentially arranged in the spring sleeve, and the tail end of the first side type needle is abutted against the inner wall reverse buckle of the workpiece; the tail end of the second side-shaped needle is abutted against the side hole on the outer side of the workpiece, and the starting end of the second side-shaped needle, the second spring and the second headless screw are sequentially installed in the sliding block.

The utility model discloses a further technical scheme is: and a fine positioning block for realizing the precise positioning when the mold is closed is arranged at the periphery of the movable mold plate.

The utility model discloses a further technical scheme is again: the bottom of the movable mould plate is also connected with a movable mould base plate, and an exhaust groove is formed in the position, corresponding to the upper guide sleeve, of the movable mould base plate so as to release compressed air when the guide pillar is inserted into the guide sleeve and prevent the guide pillar from being ejected.

Due to the adoption of the structure, the utility model discloses a digit control machine tool controller encapsulation lid mould compares with prior art, has following beneficial effect:

1. can effectively solve the problem of local demoulding of the inner wall reverse buckle, the side hole at the outer side edge, the groove or the boss at the outer wall

Because the utility model discloses a cover half, movable mould, die carrier, demoulding mechanism include thimble subassembly and oblique guide pillar slider mechanism, demoulding mechanism still includes oblique guide pillar slider mechanism, this oblique guide pillar slider mechanism includes oblique guide pillar slider main part mechanism, secondary ejection mechanism. The utility model adopts a twice demoulding method to demould the outer wall aiming at the back-off (groove or boss) characteristic of the outer wall, the first demoulding is the demoulding of the whole side surface of the outer wall, and the formed part of the secondary ejection mechanism is used for ejecting the outer wall to prevent the outer wall from deforming; the second time is demoulding with local back-off characteristics, and the mould needle of the secondary ejection mechanism is pulled out from the outer wall under the driving of the sliding block; and aiming at the back-off of the inner wall, the side wall of the workpiece is pushed out of the mold core by adopting a secondary ejection mechanism, and the workpiece generates small elastic deformation and avoids hooking of the back-off, so that a position is given for subsequent ejection of the ejector pin assembly. Therefore, the utility model discloses can effectively solve the local drawing of patterns problem of inner wall back-off, outside limit side opening, outer wall recess or boss.

2. Automatic injection molding production capable of realizing packaging box cover of numerical control machine controller

Because the utility model discloses can effectively solve the local drawing of patterns problem of inner wall back-off, outside limit side opening, outer wall recess or boss, can realize the automatic injection moulding production of numerical control machine controller encapsulation lid.

3. The mechanism is skillfully arranged

When the mold is opened on the mold opening surface, the inclined guide post drives the slide block to be drawn out outwards, core-pulling and demolding are carried out on the side surface of the groove or the boss on the outer wall of the workpiece, at the moment, the second side-shaped needle is pressed against the side wall of the workpiece to be fixed under the elastic pressure of the second spring, and the slide block completes demolding of the groove or the boss on the outer wall; after the sliding block is pulled out for a certain distance, the second side needle is pulled out, and demolding of the side hole on the outer side edge of the workpiece is completed; under the condition that the jacking of the second side-type needle is lost, the first spring drives the first side-type needle 3 to eject outwards, so that the inner wall reverse buckle of the workpiece is ejected out of the core insert, meanwhile, the side wall is slightly elastically deformed, and the inner wall reverse buckle of the workpiece cannot hook the core insert, so that the preparation is made for the next complete ejection, and the structure arrangement is ingenious.

4. Reliable performance

This mould is provided with the accurate locating piece that is used for realizing accurate location when the mould is closed in the periphery of movable mould board, still is connected with the movable mould backing plate bottom the movable mould board, has still seted up the air discharge duct corresponding to the position of going up the guide pin bushing on the movable mould backing plate to compressed air when release guide pillar inserts the guide pin bushing prevents that the guide pillar from being died by the top. Therefore, the utility model discloses a performance is more reliable.

5. Can save the manufacturing cost of the die and is easy to popularize and use.

The utility model discloses can be according to the size of a dimension of product, adopt a mould two chambeies to come with the last encapsulation lid and the lower encapsulation lid of mould shaping numerical control machine tool controller encapsulation lid, saved mould manufacturing cost greatly, have better production reference value, easily use widely.

The technical features of the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIGS. 1 to 4: the utility model discloses a digit control machine tool controller encapsulation lid mould's schematic structure diagram, wherein:

FIG. 1: a front view of a numerical control machine controller packaging box cover mould,

FIG. 2: the cross-sectional view a-a of figure 1,

FIG. 3: the cross-sectional view B-B of figure 1,

FIG. 4: the cross-sectional view C-C of figure 1 (the other half of the view is omitted),

FIG. 5: the cross-sectional view D-D of figure 1,

fig. 6 to 7: the structure sketch map of the upper packaging cover of the numerical control machine control box cover, wherein:

FIG. 6: a front view of the upper encapsulation cover,

FIG. 7: FIG. 6 is a cross-sectional view E-E;

fig. 8 to 9: the structure schematic diagram of the lower encapsulation cover of the numerical control machine control box cover, wherein:

FIG. 8: a front view of the lower encapsulation cover,

FIG. 9: the cross-sectional view F-F of figure 8,

in the above drawings, the respective reference numerals are explained as follows:

1-panel, 2-fixed template, 3-movable template, 4-movable template plate, 5-mould foot, 6-thimble cover plate,

7-ejector pin push plate, 8-bottom plate, 9-reset rod, 10-reset rod spring, 11-support column, 12-ejector pin plate guide sleeve,

13-ejector plate guide post, 14-cavity insert, 15-core insert, 16-fine positioning block, 17-workpiece,

18-inclined guide post, 19-slide block press plate, 20-slide block, 21-slide block limit screw, 22-slide block wear-resistant bottom plate,

23-slide block glass beads, 24-thimble, 25-material pulling rod, 26-guide sleeve, 27-guide column, 28-thimble insert,

29-a first headless screw, 30-a spring housing, 31-a first spring, 32-a first side pin, 33-a second side pin,

34-second spring, 35-second headless screw.

T1-the inner wall of the workpiece is reversed, T2-the side hole at the outer side of the workpiece, T3-the groove or the boss at the outer wall of the workpiece,

p1-die opening face.

Detailed Description

The first embodiment is as follows:

the utility model provides a digit control machine tool controller encapsulation lid mould, this mould is the structural style of a mould two chambeies, can mould plastics digit control machine tool controller encapsulation lid's upper encapsulation lid simultaneously and encapsulate the lid down. The mould comprises a fixed mould, a movable mould, a mould base and a demoulding mechanism, wherein:

the fixed die comprises a fixed die plate 2, the fixed die plate 2 adopts an integral thickening plate, two cavities corresponding to the upper packaging box cover and the lower packaging box cover are respectively arranged in the fixed die plate, and cavity inserts 14 are respectively arranged in the cavities; the top end of the fixed template 2 is connected with a panel 1;

the movable mould comprises a movable mould plate 3, and the movable mould plate 3 also adopts a thickening plate; two cores corresponding to the upper packaging box cover and the lower packaging box cover are respectively arranged in the movable template 3, and core inserts 15 are respectively arranged in the cores; the bottom end of the movable template 3 is connected with a movable template 4 so as to be convenient for installing the core insert,

the die carrier comprises a die foot 5, a bottom plate 8 and a guide pillar and guide sleeve assembly, the die foot 5 is arranged between the bottom plate 8 and the movable die base plate 4, and a support pillar 11 is connected between the bottom plate 8 and the movable die base plate 4; the guide post and guide sleeve assembly comprises a guide post 27 and a guide sleeve 26;

the demolding mechanism comprises a thimble assembly and an inclined guide pillar and slide block mechanism; the thimble assembly comprises a thimble cover plate 6, a thimble push plate 7, a thimble plate guide sleeve 12, a thimble plate guide post 13, a thimble 24, a material pulling rod 25, a reset rod 9 and a reset rod spring 10; the thimble assembly is well known in the art, and the detailed structure thereof is not described herein.

The inclined guide pillar and slide block mechanism is respectively provided with two sets corresponding to the two die cavities, and each set comprises an inclined guide pillar and slide block main body mechanism and a secondary ejection mechanism; the main mechanism of the inclined guide post and the slide block comprises an inclined guide post 18, a slide block pressing plate 19, a slide block 20 and a slide block wear-resistant bottom plate 22; the slide block 20 is arranged between the fixed die plate and the movable die plate, the upper end of the inclined guide post 18 is arranged on the cavity insert 14, and the lower end of the inclined guide post 18 is arranged in the slide block 20; the slide block pressing plate 19 is tightly pressed and arranged outside the slide block 20; the sliding block wear-resistant bottom plate 22 is arranged between the movable template and the bottom of the sliding block, a sliding block glass bead 23 for positioning is further arranged on the sliding block wear-resistant bottom plate 22, and a glass bead groove matched with the sliding block glass bead 23 is formed in the bottom of the sliding block 20; and a slide block limiting screw 21 is also arranged on the outer side of the slide block 20 of the slide block wear-resistant bottom plate 22.

The secondary ejection mechanism comprises a bullet pin insert 28, a first headless screw 29, a spring sleeve 30, a first spring 31, a first side-shaped pin 32, a second side-shaped pin 33, a second spring 34 and a second headless screw 35; the bullet pin insert 28 is mounted on the core insert 14, the spring sleeve 30 is mounted in the bullet pin insert 28, the first headless screw 29, the first spring 31 and the starting end of the first side pin 32 are sequentially mounted in the spring sleeve 30, and the tail end of the first side pin 32 abuts against the inner wall reverse T1 of the workpiece; the tail end of the second side-shaped needle 33 is pressed against a side hole T2 on the outer side of the workpiece, and the starting end of the second side-shaped needle 33, the second spring 34 and the second headless screw 35 are sequentially installed in the sliding block 20.

The periphery of the movable mould plate 3 is provided with a fine positioning block 16 for realizing accurate positioning when the mould is closed, and the movable mould base plate 4 is also provided with an exhaust groove corresponding to the upper guide sleeve 26 so as to release compressed air when the guide pillar 27 is inserted into the guide sleeve 26, prevent the guide pillar 27 from being pushed to be dead and prevent the mould opening surface P1 from being loose in mould closing.

The utility model discloses still mill out location tiger's mouth at guide pillar, guide pin bushing periphery, tiger's mouth border adopts to inlay dress tiger's mouth antifriction plate so that installation and adjustment location accuracy.

In order to facilitate the assembly and disassembly of the templates, the four corners of each template are milled with 10x10x5mm prying die angles; in the four pairs of guide pillar and guide sleeve assemblies of the die carrier, a pair of guide pillar and guide sleeves at the lower right corner are selected for eccentric arrangement so as to prevent the die plate from being assembled wrongly.

The utility model discloses a theory of operation does:

when the die is opened on the die opening surface P1, the inclined guide post 18 drives the slide block 20 to be drawn out, core-pulling and die-releasing are carried out on the side surface of the groove or the boss T3 on the outer wall of the workpiece, at the moment, under the elastic pressure of the second spring 34, the second side-shaped needle 33 is pressed against the side wall of the workpiece to be fixed, and the slide block 20 finishes die-releasing of the groove or the boss T3 on the outer wall; after the sliding block 20 is drawn out for a certain distance, the second side needle 33 is drawn out, and the demoulding of the side hole T2 on the outer side of the workpiece is completed; upon loss of the hold-down of the second side pin 33, the first spring 31 drives the first side pin 32 to eject outwardly, ejecting the workpiece inside wall undercut T1 from the core insert 14, while the side wall is slightly elastically deformed, and the workpiece inside wall undercut T1 does not catch on the core insert 14, thereby providing for the next full ejection.

The working process of the utility model is as follows:

(1) injection molding: closing a nozzle of the injection molding machine by using the mold to perform injection molding on the mold cavity;

(2) opening the mold: after injection molding is finished, cooling the plastic part by cooling water of an injection molding machine, retreating a movable die of the die, opening the die at a die opening surface P1, and completing core-pulling and demolding of the outer wall by driving 2 side sliders by an inclined guide pillar to realize demolding of the characteristic T1-T3; the workpiece is ejected from cavity insert 14 and remains on core insert 15.

(3) And (3) completely ejecting and demolding: the ejector rod of the injection molding machine acts to drive the ejector plate thimble cover plate 6 and the thimble push plate 7 to be ejected upwards, so that the ejector pin and the ejector rod are driven to be ejected upwards synchronously, and synchronous demolding of the plastic part and the cold runner waste is realized.

(4) Closing: when the mold is closed, the action process is opposite to the mold opening process, and after the mold is closed, the next injection molding cycle is waited.

Claims

1. The utility model provides a digit control machine tool controller encapsulation lid mould, includes cover half, movable mould, die carrier, demoulding mechanism, the cover half include the fixed die plate, the movable mould includes the movable mould board, the die carrier includes die pin, guide pillar guide pin bushing assembly, demoulding mechanism include thimble assembly, its characterized in that: a cavity insert is arranged in the fixed template, and a core insert is arranged in the movable template; the demoulding mechanism also comprises an inclined guide pillar and sliding block mechanism, and the inclined guide pillar and sliding block mechanism comprises an inclined guide pillar and sliding block main body mechanism and a secondary ejection mechanism; the inclined guide pillar slide block main body mechanism and the secondary ejection mechanism are arranged on the fixed template and the movable template;

the main mechanism of the inclined guide post and the slide block comprises an inclined guide post (18), a slide block pressing plate (19) and a slide block (20); the slide block (20) is arranged between the fixed die plate and the movable die plate, the upper end of the inclined guide post (18) is arranged on the cavity insert, and the lower end of the inclined guide post (18) is arranged in the slide block (20); the slide block pressing plate (19) is tightly pressed and installed outside the slide block (20);

the secondary ejection mechanism comprises a bullet pin insert (28), a first headless screw (29), a spring sleeve (30), a first spring (31), a first side-shaped pin (32), a second side-shaped pin (33), a second spring (34) and a second headless screw (35); the elastic needle insert (28) is installed on the core insert (14), the spring sleeve (30) is installed in the elastic needle insert (28), the starting ends of the first headless screw (29), the first spring (31) and the first side type needle (32) are sequentially installed in the spring sleeve (30), and the tail end of the first side type needle (32) is abutted against the inner wall reverse buckle (T1) of the workpiece; the tail end of the second side-shaped needle (33) is abutted against a side hole (T2) on the outer side of the workpiece, and the starting end of the second side-shaped needle (33), the second spring (34) and the second headless screw (35) are sequentially installed in the sliding block (20).

2. The packaging box cover mold of the numerical control machine controller according to claim 1, wherein: the inclined guide post and slide block main body mechanism further comprises a slide block wear-resistant bottom plate (22), and the slide block wear-resistant bottom plate (22) is installed between the movable mould plate and the bottom of the slide block.

3. The cover mold for the packaging box of the controller of the numerical control machine tool according to claim 2, wherein: the sliding block wear-resistant bottom plate (22) is also provided with a sliding block glass bead (23) for positioning, and the bottom of the sliding block (20) is provided with a glass bead groove matched with the sliding block glass bead (23); and the sliding block wear-resistant bottom plate (22) is also provided with a sliding block limiting screw (21) on the outer side of the sliding block (20).

4. The packaging box cover mold of the numerical control machine controller according to claim 1, wherein: and a precise positioning block (46) for realizing precise positioning when the mold is closed is arranged at the periphery of the movable mold plate (3).

5. The cover mold for the controller package box of the numerical control machine tool according to any one of claims 1 to 4, wherein: the bottom of the movable mould plate is also connected with a movable mould base plate (4), and an exhaust groove is formed in the position, corresponding to the upper guide sleeve (26), of the movable mould base plate (4) so as to release compressed air when the guide pillar (27) is inserted into the guide sleeve (26) and prevent the guide pillar (27) from being jacked.