CN113478760A - Earphone shell mould convenient to drawing of patterns - Google Patents

Abstract

The utility model relates to an earphone shell mould convenient to drawing of patterns belongs to injection mold's field, and it includes preceding die carrier, front mould benevolence, back die carrier and back die benevolence, the front mould with the die cavity has been seted up jointly on the back mould, the back mould is close to the position fixedly connected with sliding block of die cavity, the sliding block with mould plastics after the concave joint in the casing, the sliding block is followed the line direction of back mould benevolence and front mould benevolence slides, sliding connection has a plurality of outer thimbles that expand that make it break away from with the sliding block with the casing both ends outward on the sliding block, expand the top outward to the power of perpendicular to casing direction is applyed to the casing, casing length direction place plane with sliding block sliding direction sets up perpendicularly. This application makes earphone shell both ends outwards expand through expanding the thimble outward, makes lug and the ear muff on the casing can be followed the mould and expanded, reduces the joint with the mould to the drawing of patterns of being convenient for.

Description

Earphone shell mould convenient to drawing of patterns

Technical Field

The application relates to the field of injection molds, in particular to an earphone shell mold convenient to demolding.

Background

The shell of headphone usually has plastics to mould plastics and makes, and the process of moulding plastics injects the material into the mould shaping, then the drawing of patterns is made, but because earphone shell structure is comparatively complicated, therefore manual demoulding process need open the earphone shell to a plurality of directions during the drawing of patterns, and the operation is comparatively complicated.

Referring to fig. 1, a headphone shell, including casing 1, casing 1 is the strip setting and buckles and be the arc, and 1 both ends axisymmetric of casing sets up, 1 indent side fixedly connected with a plurality of lugs 11 of casing, 1 both ends fixedly connected with ear muff 12 of casing.

In view of the above-mentioned related art, the inventor found that the earphone housing is inconvenient to be demolded due to the arrangement of the bumps and the ear cups during injection molding.

Disclosure of Invention

In order to facilitate carrying out the drawing of patterns to the earmuff, improve the drawing of patterns effect of earmuff, this application provides an earphone shell mould convenient to the drawing of patterns.

The utility model provides an earphone shell mould convenient to drawing of patterns, includes preceding die carrier, front mould benevolence, back die carrier and back mould benevolence, front mould benevolence with the die cavity has been seted up jointly on the back mould benevolence, back mould benevolence is close to the position fixedly connected with sliding block of die cavity, the sliding block with mould plastics after the curved medial surface joint of casing, the sliding block is followed the line direction of back mould benevolence and front mould benevolence slides, sliding connection has a plurality of outer thimbles that expand that make it break away from with the sliding block with the casing both ends on the sliding block, expand outward the top to the power of perpendicular to medial surface direction in the casing is applyed to the casing, it is mutually perpendicular with the slip direction of sliding block to expand the thimble in the mould.

Through adopting above-mentioned technical scheme, during the use, mould plastics through the die cavity between front mould benevolence and the back mould benevolence, the back die sinking of moulding plastics, the product can be stayed on the mould, makes earphone shell both ends outwards expand through expanding the thimble outward, makes lug and the ear muff on the earphone shell can be followed the mould and expanded and opened, reduces the joint with the mould to the drawing of patterns of being convenient for.

Optionally, the number of the outer expanding thimbles is four, the outer expanding thimbles are located inside the arc of the shell, and the outer expanding thimbles are located on two sides of the center of the shell respectively and are arranged in an axial symmetry manner.

Through adopting above-mentioned technical scheme, expand the thimble outward and can follow the inside extension outward of earphone shell casing outward, four that the symmetry set up expand the thimble outward and can evenly carry out the application of force to the casing, make the casing can open, lug and mould separation in earmuff and the casing also are difficult for making the too big fracture that causes of local atress of casing.

Optionally, sliding connection has the angle slider in the back mould benevolence, the angle slider with the casing center sets up relatively, the angle slider with the sliding block syntropy and synchronous slip, the angle slider be located between two earmuffs and with two earmuff joints.

Through adopting above-mentioned technical scheme, angle slider and sliding block cooperation synchronous slip can make earlier whole synchronous roll-off with the product in the drawing of patterns, and the follow-up outer expanding of being convenient for drops, and angle slider can support the product jointly with the sliding block from both ends and product joint, reduces the crooked condition of slip in-process product.

Optionally, one end of the rear die carrier, which is far away from the front die carrier, is connected with a first ejector plate which is used for driving the sliding block to slide in a sliding manner, and the sliding direction of the first ejector plate is the same as that of the sliding block.

Through adopting above-mentioned technical scheme, slide through sliding the drive sliding block with first thimble board and slide, be convenient for be applicable to conventional device of moulding plastics, the suitability is high, and is easy and simple to handle.

Optionally, the sliding block is fixedly connected with a first ejection thimble, the length of the first ejection thimble is arranged along the sliding direction of the sliding block, the first ejection thimble slides along the length direction of the first ejection thimble, and the first ejector pin plate is fixedly connected with the first ejection thimble.

Through adopting above-mentioned technical scheme, slide through the first ejecting thimble of first thimble board drive, drive the sliding block and slide, the operation of being convenient for.

Optionally, the angle slider is fixedly connected with a second ejector pin, the length of the second ejector pin is arranged along the sliding direction of the angle slider, the second ejector pin slides along the length direction of the second ejector pin, and the first ejector pin plate is also fixedly connected with the second ejector pin.

By adopting the technical scheme, the second ejection thimble and the first ejection thimble plate can be connected to enable the second ejection thimble and the first ejection thimble to slide simultaneously under the action of the first thimble plate, so that the synchronism of the sliding block and the angle sliding block is improved, and the earphone can slide out integrally and synchronously.

Optionally, a second ejector plate for driving the outer expanding ejector pins to slide is arranged at a position, close to the first ejector plate, of the rear mold frame, the sliding direction of the second ejector plate is the same as that of the first ejector plate, and a power conversion assembly is arranged between the second ejector plate and the outer expanding ejector pins.

Through adopting above-mentioned technical scheme, make the slip of second thimble board can drive the slip of expanding the thimble outward through power conversion equipment, first thimble board slides with the second thimble board syntropy, can be convenient for carry out the drawing of patterns with the mould on the injection molding machine, utilizes the gliding direction of conventional thimble board to drive through power conversion subassembly and expand the thimble outward and slide to equidirectional, drives and breaks away from the joint relation between mould and the product.

Optionally, the power conversion assembly includes a push block slidably connected to the rear mold core, the push block and the slide block slide in the same direction, a conversion groove is formed in the push block, the conversion groove is arranged in an inclined manner, the conversion groove faces the shell from one end close to the front mold base to one end close to the rear mold base, and one end, far away from the shell, of the outward-expanding thimble slides in the inclined direction of the conversion groove.

Through adopting above-mentioned technical scheme, when the ejector pad slided along with the sliding block, the inclined plane that expands the thimble outward and can follow the switching groove on the ejector pad slides, and along with the slope on inclined plane, the slip direction that expands the thimble outward and can follow perpendicular to ejector pad slip direction slides to realize the conversion of mutually perpendicular slip direction, the injection molding machine drawing of patterns of being convenient for is operated.

Optionally, the power conversion assembly further comprises a third ejector pin fixedly connected to the push block, the third ejector pin is arranged along the sliding direction of the push block, the second ejector pin plate slides along the same direction as the push block, and one end of the third ejector pin, which is far away from the push block, is fixedly connected to the second ejector pin plate.

Through adopting above-mentioned technical scheme, realize the power between second thimble board and the ejector pad through the third thimble and be connected, be convenient for slide through the second thimble board and provide power and drive the ejector pad and slide, make the outer thimble that expands in the ejector pad can slide out from the switch over inslot in the degeneration slip process.

Optionally, first thimble board is located the second thimble board is kept away from preceding die carrier one side, the second thimble board is close to back die carrier one side is equipped with the wane, wane one end in second thimble board butt, set up the spout that sets up along second thimble board slip direction on the die carrier of back, the spout is close to preceding die carrier one end fixedly connected with butt piece, the wane is kept away from second thimble one end is followed the spout slides, the wane is both ends and all buckles towards preceding die carrier direction, the wane intermediate position with first thimble board rotates to be connected.

Through adopting above-mentioned technical scheme, set up through the wane, can make first thimble board and second thimble board slide jointly when beginning, drive earphone shell integral slide and go out back mould benevolence, then the wane butt to the butt piece of spout tip, the wane rotates, it is ejecting with the second thimble board, drive ejector pad and expand the thimble outward and expand the action, realize the drawing of patterns, the overall process is smooth, can make the injection molding machine apply the equidirectional power in succession and drive different subassemblies and carry out the drawing of patterns, need not the segmentation operation, the operation of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a headphone housing in the background art.

Fig. 2 is a schematic structural diagram of an embodiment of the present application.

FIG. 3 is a partial structural view of a protruding slider according to an embodiment of the present invention.

Fig. 4 is a partial structure diagram of a protruded outward-expanding thimble according to an embodiment of the present application.

FIG. 5 is a partial cross-sectional view of a highlighted power conversion assembly of an embodiment of the application.

Fig. 6 is a partial structure diagram of a protruding rocker according to an embodiment of the present application.

Description of reference numerals: 1. a housing; 11. a bump; 12. ear muffs; 2. a front mold frame; 22. a front mold core; 3. a rear mould frame; 31. a rear mold core; 32. a chute; 33. a butting block; 4. a slider; 41. a push block; 412. a conversion tank; 42. expanding the thimble outwards; 5. an angle slider; 6. a first ejector plate; 61. a first ejection thimble; 62. a second ejection thimble; 63. a seesaw; 7. a second ejector plate; 71. and a third thimble.

Detailed Description

The present application is described in further detail below in conjunction with FIGS. 2-6.

The embodiment of the application discloses earphone shell mould convenient to drawing of patterns. Referring to fig. 2, the earphone shell mold facilitating demolding comprises a front mold frame 2, a front mold core 22, a rear mold frame 3 and a rear mold core 31, wherein a cavity is jointly formed in the front mold core 22 and the rear mold core 31. When the injection molding machine is used, the injection molding material is injected into the cavity to obtain a product, and the front mold core 22 and the rear mold core 31 are opened to take out the product.

Referring to fig. 2 and 3, a sliding block 4 is fixedly connected to a position of the rear mold core 31 close to the cavity, the sliding block 4 is clamped with the convex block 11 on the arc-shaped concave side of the injection molded shell 1, and the sliding block 4 slides along a connecting line direction of the rear mold core 31 and the front mold core 22.

Referring to fig. 2 and 3, the rear mold core 31 is slidably connected with an angle slider 5, the angle slider 5 is opposite to the center of the shell 1, the angle slider 5 and the sliding block 4 slide in the same direction and synchronously, and the angle slider 5 is located between the two ear cups 12 and is clamped with the two ear cups 12. Carry out the joint through slider 4 and 5 and the relative both ends of earphone shell product of angle slider, when both synchronous sliding, can be stable with the whole roll-off in the back mould benevolence 31 of following of product, realize the follow-up drawing of patterns of being convenient for.

Referring to fig. 3 and 4, one end of the rear mold frame 3, which is far away from the front mold frame 2, is slidably connected with a first ejector plate 6 for driving the sliding block 4 to slide, and the sliding direction of the first ejector plate 6 is the same as that of the sliding block 4. The sliding direction of the first ejector plate 6 is perpendicular to the plane. One side of the first ejector pin plate 6 close to the front mold core 22 is fixedly connected with two first ejector pins 61 perpendicular to the first ejector pin plate 6, the two first ejector pins 61 are located on two sides of the sliding block 4, the first ejector pins 61 are both fixedly connected with the sliding block 4, and the first ejector pins 61 slide along the length direction of the first ejector pins.

Referring to fig. 3 and 4, a second ejector pin 62 is further fixedly connected to a surface of the first ejector plate 6 close to the front mold core 22, the second ejector pin 62 is arranged in parallel with the first ejector pin 61, and the length of the second ejector pin 62 is arranged along the sliding direction of the angle slider 5. Through the slip of first thimble board 6, can drive first ejecting thimble 61 and the ejecting thimble 62 of second simultaneously and promote sliding block 4 and angle slider 5 and slide jointly, improve the synchronism, guarantee to slide earphone shell product completely, reduce the bad different positions of product that cause of application of force to earphone shell product broken.

Referring to fig. 3 and 4, a plurality of outward-expanding ejector pins 42 for outwardly expanding both ends of the housing 1 to be separated from the sliding block 4 are slidably connected to the sliding block 4. The number of the outward expanding thimbles 42 is four, the outward expanding thimbles 42 are all located in the arc-shaped inner portion of the shell 1, and the outward expanding thimbles 42 are respectively located on two sides of the center of the shell 1 and are arranged in an axial symmetry mode. The outward expanding thimble 42 is located at the inner side of the arc of the shell 1 and applies a force to the shell 1 in a direction perpendicular to the inner side of the shell 1. The shell 1 is expanded through the expanding thimble 42, so that the convex block 11 on the shell 1 and the ear muffs 12 at the two ends are separated from the sliding block 4 and the angle sliding block 5, and the demoulding is realized.

Referring to fig. 3 and 4, a second ejector plate 7 for driving the outward-expanding thimble 42 to slide is arranged at a position of the rear mold frame 3 close to the first ejector plate 6, and the second ejector plate 7 slides in the same direction as the first ejector plate 6. A power conversion assembly is arranged between the second ejector pin plate 7 and the outward expanding ejector pin 42.

Referring to fig. 4 and 5, the power conversion assembly includes a push block 41 slidably connected to the slide block 4, the push block 41 slides in the same direction as the slide block 4, and a third thimble 71 is fixedly arranged between the push block 41 and the second thimble plate 7. The push block 41 is provided with a conversion groove 412, the conversion groove 412 is arranged obliquely, the conversion groove 412 is arranged towards the housing 1 from one end far away from the third thimble 71 to one end close to the third thimble 71, and one end of the outward expanding thimble 42 far away from the housing 1 slides along the oblique direction of the conversion groove 412. When the second ejector plate 7 slides, the push block 41 slides along with the second ejector plate, when the first ejector plate 6 is not moved, the sliding block 4 and the shell 1 are both in a static state, so that the outward-expanding ejector pin 42 is not moved in the sliding direction of the push block 41, the push block 41 and the sliding block 4 slide relatively, at this time, the outward-expanding ejector pin 42 slides along the conversion groove 412 of the sliding block 4, and the outward-expanding ejector pin 42 slides in the direction perpendicular to the sliding direction of the push block 41 due to the inclined arrangement, so that the shell 1 is expanded, and demolding is realized.

Referring to fig. 4 and 6, the first ejector plate 6 is located on the side of the second ejector plate 7 far away from the front mold frame 2, the side of the second ejector plate 7 close to the rear mold frame 3 is provided with a warping plate 63, and one end of the warping plate 63 is abutted to the second ejector plate 7. The rear die carrier 3 is provided with a sliding groove 32 arranged along the sliding direction of the second ejector plate 7, and one end of the sliding groove 32 close to the rear die carrier 3 is fixedly connected with a butting block 33. One end of the warping plate 63, far away from the second ejector pin, slides along the sliding groove 32, the warping plate 63 is bent towards the direction far away from the rear die carrier 3 at two ends, and the middle position of the warping plate 63 is rotatably connected with the first ejector plate 6. When first thimble board 6 and second thimble board 7 slide simultaneously, with earphone shell and sliding block 4, behind the mould benevolence 31 behind the joint mould part roll-off simultaneously in the angle slider 5 etc., the one end and the butt piece 33 butt that second thimble board 7 was kept away from to wane 63 this moment, then when continuing the application of force, wane 63 rotates around first thimble board 6, ejecting second thimble board 7 to the direction of keeping away from first thimble board 6 to drive and expand thimble 42 outward with casing 1, reach the effect of drawing of patterns.

The implementation principle of the embodiment of the application is as follows: during the use, use the injection molding machine to exert pressure to first thimble board 6 after finishing moulding plastics, make first thimble board 6 and second thimble board 7 simultaneously by the motion of back mould benevolence 31 to front mould benevolence 22, drive sliding block 4, ejector pad 41, angle slider 5 and earphone shell product slide out from back mould benevolence 31 simultaneously, then continue to the thimble board application of force, wane 63 rotates, make the gliding distance of second thimble board 7 be greater than first thimble board 6, promote ejector pad 41 and sliding block 4 relative slip, drive and expand thimble 42 outward and accomplish and expand outward, break away from lug 11 and ear muff 12 in the casing 1 and mould.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides an earphone shell mould convenient to drawing of patterns which characterized in that: comprises a front mould frame (2), a front mould core (22), a rear mould frame (3) and a rear mould core (31), the front mold core (22) and the rear mold core (31) are provided with a mold cavity together, the position of the rear mold core (31) close to the mold cavity is fixedly connected with a sliding block (4), the sliding block (4) is clamped with the arc inner side surface of the shell (1) after injection molding, the sliding block (4) slides along the connecting line direction of the rear die core (31) and the front die core (22), the sliding block (4) is connected with a plurality of outward-expanding thimbles (42) which are used for outward expanding the two ends of the shell (1) to separate the shell from the sliding block (4) in a sliding way, the outward expanding thimble (42) applies force to the shell (1) in a direction vertical to the inner side surface of the shell (1), the force application direction of the outward-expanding thimble (42) in the die is vertical to the sliding direction of the sliding block (4).

2. The earphone shell mold convenient for demolding as claimed in claim 1, wherein: the number of the outer expanding thimbles (42) is four, the outer expanding thimbles (42) are all located in the arc-shaped inner portion of the shell (1), and the outer expanding thimbles (42) are respectively located on two sides of the center of the shell (1) and are arranged in an axial symmetry mode.

3. The earphone shell mold convenient for demolding as claimed in claim 1, wherein: sliding connection has angle slider (5) in back mould benevolence (31), angle slider (5) with casing (1) center sets up relatively, angle slider (5) with sliding block (4) syntropy and synchronous slip, angle slider (5) are located between two earmuffs (12) and with two earmuffs (12) joint.

4. The earphone shell mold convenient for demolding as claimed in claim 1, wherein: the back die carrier (3) keep away from preceding die carrier (2) one end sliding connection has and is used for driving gliding first thimble board (6) of sliding block (4), the slip direction of first thimble board (6) with the slip direction of sliding block (4) is the same.

5. The earphone shell mold convenient for demolding as claimed in claim 4, wherein: the sliding block (4) is fixedly connected with a first ejection thimble (61), the length of the first ejection thimble (61) is arranged along the sliding direction of the sliding block (4), the first ejection thimble (61) slides along the length direction of the first ejection thimble, and the first ejector pin plate (6) is fixedly connected with the first ejection thimble (61).

6. The earphone shell mold convenient for demolding as claimed in claim 4, wherein: the angle sliding block (5) is fixedly connected with a second ejection thimble (62), the length of the second ejection thimble (62) is arranged along the sliding direction of the angle sliding block (5), the second ejection thimble (62) slides along the length direction of the second ejection thimble, and the first ejector pin plate (6) is also fixedly connected with the second ejection thimble (62).

7. The earphone shell mold convenient for demolding as claimed in claim 4, wherein: back die carrier (3) are close to the position of first thimble board (6) is equipped with and is used for driving outer gliding second thimble board (7) of expanding thimble (42), the slip direction of second thimble board (7) with the slip direction of first thimble board (6) is the same, second thimble board (7) with expand outward and be equipped with power conversion subassembly between thimble (42).

8. The earphone shell mold facilitating demolding according to claim 7, wherein: the power conversion assembly comprises a push block (41) which is connected with the rear die core (31) in a sliding mode, the push block (41) slides along the same direction as the sliding block (4), a conversion groove (412) is formed in the push block (41), the conversion groove (412) is arranged in an inclined mode, the conversion groove (412) is arranged towards the shell (1) from one end close to the front die carrier (2) to one end close to the rear die carrier (3), and one end, far away from the shell (1), of the outer expansion thimble (42) slides along the inclined direction of the conversion groove (412).

9. The earphone shell mold facilitating demolding according to claim 8, wherein: the power conversion assembly further comprises a third ejector pin (71) fixedly connected to the push block (41), the third ejector pin (71) is arranged in the sliding direction of the push block (41), the second ejector pin plate (7) slides in the same direction as the push block (41), and one end of the third ejector pin (71) far away from the push block (41) is fixedly connected with the second ejector pin plate (7).

10. The earphone shell mold facilitating demolding according to claim 7, wherein: first thimble board (6) are located second thimble board (7) are kept away from preceding die carrier (2) one side, second thimble board (7) are close to back die carrier (3) one side is equipped with wane (63), wane (63) one end in second thimble board (7) butt, offer spout (32) along second thimble board (7) slip direction setting on back die carrier (3), spout (32) are close to preceding die carrier (2) one end fixedly connected with butt piece (33), wane (63) are kept away from second thimble one end is followed spout (32) slide, wane (63) are both ends and all buckle towards preceding die carrier (2) direction, wane (63) intermediate position with first thimble board (6) rotate to be connected.

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