CN210940279U

CN210940279U - Lid injection mold behind microphone

Info

Publication number: CN210940279U
Application number: CN201921948148.2U
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 block injection mold behind microphone relates to injection mold technical field. The technical key points are as follows: including last mould and lower mould, constitute the die cavity when going up mould and lower mould compound die, be provided with the cover half seat that is used for forming the inner chamber on the lower mould, be provided with the mounting hole with the die cavity intercommunication on the lower mould, the mounting hole internal rotation is provided with and is used for forming internal screw thread shaping seat, the shaping seat lower extreme is provided with driven gear, be provided with in the lower mould with driven gear meshing's driving gear, be provided with on the outer wall of lower mould and be used for driving gear pivoted actuating mechanism, the utility model has the advantages of improve production efficiency.

Description

Lid injection mold behind microphone

Technical Field

The utility model relates to an injection mold technical field, more specifically say, it relates to a block injection mold behind microphone.

Background

An injection mold is a tool for producing plastic products, which mainly realizes the processing of the appearance of an object through the change of the physical state of a formed material. The injection mold is composed of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable mold plate of the injection molding machine, and the fixed mold is arranged on a fixed movable plate of the injection molding machine.

The rear cover cap of the microphone is made of plastic and is generally formed by injection molding of a matched mold. At present, a microphone rear cap is available on the market, as shown in fig. 1, and comprises a circular barrel body 1, an inner cavity 2 is arranged in the barrel body 1, and an internal thread 3 is arranged at the lower end of the inner side of the barrel body 1.

However, in the processing process of the product, the cylinder body is generally formed through an injection mold, and then the inner lower end of the cylinder body is processed through the tapping machine to form the internal thread.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a block injection mold behind microphone, it has the advantage that improves production efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a block injection mold behind microphone, includes mould and lower mould, constitute the die cavity when going up mould and lower mould compound die, be provided with the cover half seat that is used for forming the inner chamber on the lower mould, be provided with the mounting hole with the die cavity intercommunication on the lower mould, it is used for forming internal screw thread one-tenth shape seat to rotate to be provided with in the mounting hole, it is provided with driven gear to become the shape seat lower extreme, be provided with in the lower mould with driven gear meshing's driving gear, be provided with on the outer wall of lower mould and be used for driving gear pivoted.

By adopting the technical scheme, when the die is closed, the cylinder body can be formed by injecting molding substances into the cavity, and the lower end of the inner side of the cylinder body can form an internal thread under the action of the molding seat; when carrying out the barrel drawing of patterns, make earlier and go up mould and lower mould separation, then drive the driving gear through actuating mechanism and rotate, the driving gear rotates through driven gear and drives the shaping seat rotation after that, and the lower mould has ascending effort to the barrel simultaneously to can realize that barrel and shaping seat break away from, accomplish the drawing of patterns of barrel.

To sum up, for forming the internal thread to the inboard lower extreme processing of barrel by tapping machine again after the barrel through injection mold, the aforesaid can realize under the prerequisite of drawing of patterns, through the internal thread that the shaping seat formed the barrel, can effectively improve production efficiency.

Furthermore, the number of the cavities is two, and the two driven gears in the lower die are meshed with the same driving gear.

Through adopting above-mentioned technical scheme, under actuating mechanism's effect, can once only form two barrels, so not only improved production efficiency, and do not produce extra energy loss.

Furthermore, the driving mechanism comprises a rotating shaft fixedly connected with the driving gear, a driven synchronizing wheel arranged at the lower end of the rotating shaft, a motor arranged on the outer side of the lower die and a driving synchronizing wheel arranged on an output shaft of the motor, and the driving synchronizing wheel is connected with the driven synchronizing wheel through a belt.

Through adopting above-mentioned technical scheme, when carrying out the drawing of patterns, the starter motor earlier, drive the initiative synchronizing wheel by the motor and rotate, pass through the belt by the initiative synchronizing wheel and drive the driven synchronizing wheel and rotate after that, pass through the axis of rotation by the driven synchronizing wheel again and drive the driving gear and rotate with the shaping seat that driven gear is connected to realize the rotation of shaping seat.

Further, a plurality of clamping strips located on the periphery of the forming seat are rotatably arranged on the lower die, torsion springs are arranged at the rotating connection positions of the clamping strips and the lower die, and the clamping strips are abutted against the outer side of the cylinder body during demolding.

Through adopting above-mentioned technical scheme, at the back of upper die and lower mould separation, press from both sides tight strip and rotate and support tightly on the lateral wall of barrel through the torsional spring, can avoid the barrel to produce and rotate, improve the efficiency that barrel and shaping seat break away from.

Furthermore, a slide rail extending along the length direction of the clamping strip is arranged on the surface of one side, facing the fixed die holder, of the clamping strip, a clamping block used for abutting against the outer side of the cylinder body is arranged on the slide rail, and a positioning mechanism used for positioning is arranged on the clamping block.

Through adopting above-mentioned technical scheme, before the compound die, through promoting to press from both sides tight piece and remove in the slide rail, can change the mounted position who presss from both sides tight piece, adapt to the barrel of different specifications, treat to press from both sides tight piece and remove to the assigned position after, can restrict through positioning mechanism and press from both sides tight piece and remove, ensure to press from both sides tight piece and produce effectual support tightly to the barrel.

Furthermore, the positioning mechanism is a spring pin, the spring pin is arranged on one side, facing the slide rail, of the clamping block, and a plurality of clamping grooves which are distributed along the length direction of the slide rail and are used for embedding the spring pin are formed in the slide rail.

Through adopting above-mentioned technical scheme, after having adjusted and pressing from both sides tight piece position, through the gomphosis of spring catch and draw-in groove, can realize pressing from both sides the location of tight piece, avoid pressing from both sides tight piece and remove and lead to the barrel atress inhomogeneous.

Furthermore, a high-temperature-resistant silica gel layer is arranged on the surface of one side, facing the fixed die holder, of the clamping block.

By adopting the technical scheme, the high-temperature-resistant silica gel layer can prevent high-temperature damage during injection molding; after the clamping block abuts against the barrel, the barrel can be prevented from being damaged by the clamping block through the silica gel layer.

Further, the shaping seat is provided with the through-hole that extends along its length direction, the die holder lower surface is provided with and passes the dwang of through-hole, the dwang lower extreme is provided with and supports tight spring, support tight spring both ends with the lower extreme of lower mould and dwang is connected.

Through adopting above-mentioned technical scheme, when drawing of patterns, the cover half seat can play the cushioning effect under the effect of supporting tight spring, avoids causing the destruction to the barrel under the impact of lower mould, and after the barrel drawing of patterns, supports tight spring and can play the reset action of cover half seat, improves production efficiency.

Furthermore, the lower die comprises a movable plate and a movable die fixing plate, the movable plate and the upper die form a cavity, the movable die fixing plate is used for mounting the movable plate, the movable plate and the movable die fixing plate are provided with communicated containing holes, return springs are arranged in the containing holes, and two ends of each return spring are respectively connected with the movable plate and the movable die fixing plate.

By adopting the technical scheme, the reset spring deforms during injection molding, and the lower end of the cylinder body is contacted with the movable plate; when the die is removed, the return spring restores to deform, and the movable plate exerts upward acting force on the cylinder under the action of the return spring, so that the forming seat is separated from the cylinder.

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

(1) by arranging the forming seat, on the premise of realizing demolding, the forming seat forms the internal thread of the cylinder body, demolding is convenient, and the production efficiency can be effectively improved;

(2) by arranging the clamping strip and the torsion spring, the clamping strip rotates through the torsion spring and is abutted against the side wall of the cylinder body, so that the cylinder body can be prevented from rotating, and the separation efficiency of the cylinder body and the forming seat is improved;

(3) through setting up reset spring, resume deformation by reset spring, the movable plate exerts ascending effort to the barrel under reset spring's effect, helps breaking away from of shaping seat and barrel.

Drawings

Fig. 1 is a schematic structural view of a rear cap of a conventional microphone;

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

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic view showing a part of the structure of the protruded clamping bar of the present embodiment;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is an enlarged view of B in FIG. 3;

fig. 7 is a schematic sectional view taken along line B-B in fig. 2.

Reference numerals: 1. a barrel; 2. an inner cavity; 3. an internal thread; 4. an upper die; 41. an upper mold core; 42. fixing a plate; 43. a panel; 44. fixing a die fixing plate; 5. a lower die; 51. a base plate; 52. square iron; 53. a support plate; 54. a movable mold fixing plate; 55. a movable plate; 56. a lower mold core; 6. a cavity; 7. fixing a die holder; 8. mounting holes; 9. forming a base; 10. a driven gear; 11. a driving gear; 12. a drive mechanism; 121. a rotating shaft; 122. a driven synchronizing wheel; 123. a motor; 124. a driving synchronizing wheel; 125. a belt; 13. a through hole; 14. rotating the rod; 15. the spring is tightly propped; 16. a convex ring; 17. a placement groove; 18. a clamping bar; 19. a torsion spring; 20. a slide rail; 21. a clamping block; 22. a spring pin; 23. a card slot; 24. a silica gel layer; 25. a housing hole; 26. a guide post; 27. a return spring.

Detailed Description

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

A microphone rear cap injection mold comprises an upper mold 4 and a lower mold 5, wherein the upper mold 4 comprises an upper mold core 41, a fixed mold plate 42, a fixed mold fixing plate 44 and a panel 43 which are sequentially installed from bottom to top, and the lower mold 5 comprises a bottom plate 51, square iron 52, a supporting plate 53, a movable mold fixing plate 54, a movable plate 55 and a lower mold core 56 which are sequentially installed from bottom to top.

As shown in fig. 3, when the upper mold core 41 and the lower mold core 56 are closed, a cavity 6 is formed, a fixed mold base 7 for forming the inner cavity 2 is mounted on the lower mold core 56, coaxial mounting holes 8 are formed in the support plate 53, the movable mold fixing plate 54, the movable plate 55 and the lower mold core 56, a forming base 9 for forming the internal thread 3 is rotatably mounted in the mounting holes 8, a driven gear 10 is fixed on the outer wall of the lower end of the forming base 9, a driving gear 11 meshed with the driven gear 10 is mounted on the support plate 53, and a driving mechanism 12 for driving the driving gear 11 to rotate is mounted on the outer wall of the lower mold 5.

As shown in fig. 3, the number of the cavities 6 is two, two driven gears 10 in the lower die 5 are meshed with the same driving gear 11, and two cylinders 1 can be formed at one time under the action of the driving mechanism 12, so that the production efficiency is improved, and no extra energy loss is generated.

Further, the driving mechanism 12 includes a rotating shaft 121 fixed to the axis of the driving gear 11, a driven synchronizing wheel 122 mounted at the lower end of the rotating shaft 121, a motor 123 mounted on the outer wall of the lower mold 5, and a driving synchronizing wheel 124 mounted on the output shaft of the motor 123, wherein the driving synchronizing wheel 124 and the driven synchronizing wheel 122 are connected by a belt 125. Therefore, when the mold is removed, the motor 123 is first started, the motor 123 drives the driving synchronizing wheel 124 to rotate, the driving synchronizing wheel 124 drives the driven synchronizing wheel 122 to rotate through the belt 125, and the driven synchronizing wheel 122 drives the driving gear 11 and the molding base 9 connected to the driven gear 10 to rotate through the rotating shaft 121, so that the rotation of the molding base 9 is realized.

As shown in fig. 3, the forming base 9 is provided with a through hole 13 extending along the length direction and penetrating through the supporting plate 53, the lower surface of the fixed base 7 extends to form a rotating rod 14 penetrating through the through hole 13, the bottom of the rotating rod 14 extends to form a convex ring 16, the lower end of the rotating rod 14 is provided with a resisting spring 15, and two ends of the resisting spring 15 are fixed to the lower surface of the supporting plate 53 and the convex ring 16 at the lower end of the rotating rod 14. Therefore, when the demoulding is carried out, the fixed die base 7 can play a role in buffering under the action of the abutting spring 15, the barrel 1 is prevented from being damaged under the impact action of the lower die 5, and after the barrel 1 is demoulded, the abutting spring 15 can play a role in resetting the fixed die base 7, so that the production efficiency is improved.

As shown in fig. 4 and 5, the lower mold core 56 is provided with four placing grooves 17 located on the peripheral side of the forming seat 9, the clamping bar 18 is rotatably mounted in the placing grooves 17, and the torsional spring 19 is mounted at the rotary connection position of the clamping bar 18 and the placing grooves 17. Therefore, when the mold is closed, the clamping strip 18 is positioned in the placing groove 17, and the torsion spring 19 is in a deformation state; after the upper die 4 is separated from the lower die 5, the clamping strip 18 rotates through the torsion spring 19 and abuts against the side wall of the cylinder body 1, so that the cylinder body 1 can be prevented from rotating, and the separation efficiency of the cylinder body 1 and the forming seat 9 is improved.

As shown in fig. 5 and 6, a slide rail 20 extending along the length direction is disposed on a surface of one side of the clamping bar 18 facing the stationary die holder 7, a clamping block 21 is mounted on the slide rail 20, a spring pin 22 is mounted on one side of the clamping block 21 facing the slide rail 20, and six slots 23 distributed along the length direction and into which the spring pin 22 is inserted are disposed in the slide rail 20. Therefore, before the clamping is carried out, the clamping block 21 is pushed to move in the slide rail 20, the mounting position of the clamping block 21 can be changed, the clamping block is suitable for the cylinder bodies 1 with different specifications, after the clamping block 21 moves to the designated position, the clamping block 21 can be limited to move through the engagement of the spring pin 22 and the clamping groove 23, and the clamping block 21 is enabled to effectively abut against the cylinder body 1.

It is worth mentioning that a high temperature resistant silica gel layer 24 is fixed on the surface of one side of the clamping block 21 facing the fixed die holder 7. Therefore, the high-temperature-resistant silica gel layer 24 can prevent high-temperature damage during injection molding; after the clamping block 21 abuts against the cylinder 1, the silica gel layer 24 can prevent the clamping block 21 from damaging the cylinder 1.

As shown in fig. 7, the lower mold core 56 is mounted on the movable plate 55, the movable plate 55 and the movable mold fixed plate 54 are provided with a communicating containing hole 25, the containing hole 25 is provided with a guide post 26 along the axis thereof, a return spring 27 sleeved outside the guide post 26 is mounted in the containing hole 25, and two ends of the return spring 27 are respectively fixed with the movable plate 55 and the movable mold fixed plate 54. Therefore, during injection molding, the return spring 27 is deformed, and the lower end of the cylinder 1 is in contact with the lower mold core 56; during demolding, the return spring 27 returns to its original shape, and the movable plate 55 exerts an upward force on the cylinder 1 through the lower mold core 56 by the return spring 27, thereby facilitating the separation of the forming base 9 from the cylinder 1.

The utility model discloses a working process and beneficial effect as follows: when the die is closed, a molding substance is injected into the cavity 6 to form the cylinder body 1; when the demolding is performed, the upper mold 4 is separated from the lower mold 5, then the driving synchronizing wheel 124 on the rotating shaft of the motor 123 drives the driven synchronizing wheel 122 to rotate through the belt 125, so that the driven synchronizing wheel 122 drives the driving gear 11 to rotate, then the driving gear 11 drives the molding base 9 to rotate through the rotation of the driven gear 10, meanwhile, the return spring 27 acts on the movable plate 55, and the movable plate 55 exerts an upward acting force on the cylinder 1 through the lower mold core 56, so that the separation of the cylinder 1 from the molding base 9 is realized, and the demolding of the cylinder 1 is completed.

To sum up, for forming barrel 1 through injection mold after again by tapping machine to the inboard lower extreme processing internal thread 3 of barrel 1, the aforesaid can realize under the prerequisite of drawing of patterns, forms the internal thread 3 of barrel 1 through shaping seat 9, can effectively improve production efficiency.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a block injection mold behind microphone, includes mould (4) and lower mould (5), constitute die cavity (6) during last mould (4) and lower mould (5) compound die, be provided with cover half seat (7) that are used for forming inner chamber (2) on lower mould (5), its characterized in that: be provided with mounting hole (8) with die cavity (6) intercommunication on lower mould (5), mounting hole (8) internal rotation is provided with one-tenth die holder (9) that are used for forming internal thread (3), one-tenth die holder (9) lower extreme is provided with driven gear (10), be provided with in lower mould (5) with driven gear (10) meshing's driving gear (11), be provided with on the outer wall of lower mould (5) and be used for driving gear (11) pivoted actuating mechanism (12).

2. The injection mold for the rear cover cap of a microphone according to claim 1, wherein: the number of the cavities (6) is two, and the two driven gears (10) in the lower die (5) are meshed with the same driving gear (11).

3. The injection mold for the rear cover cap of a microphone according to claim 2, wherein: the driving mechanism (12) comprises a rotating shaft (121) fixedly connected with the driving gear (11), a driven synchronizing wheel (122) arranged at the lower end of the rotating shaft (121), a motor (123) arranged on the outer side of the lower die (5) and a driving synchronizing wheel (124) arranged on an output shaft of the motor (123), and the driving synchronizing wheel (124) is connected with the driven synchronizing wheel (122) through a belt (125).

4. The injection mold for the rear cover cap of a microphone according to claim 1, wherein: the lower die (5) is provided with a plurality of clamping strips (18) located on the periphery of the forming seat (9) in a rotating mode, torsion springs (19) are arranged at the rotating connection positions of the clamping strips (18) and the lower die (5), and when the die is removed, the clamping strips (18) abut against the outer side of the barrel body (1).

5. The injection mold for the rear cover cap of a microphone according to claim 4, wherein: the clamping device is characterized in that a sliding rail (20) extending along the length direction of the clamping strip (18) is arranged on the surface of one side, facing the fixing die holder (7), of the clamping strip, a clamping block (21) used for abutting against the outer side of the cylinder body (1) is arranged on the sliding rail (20), and a positioning mechanism used for positioning is arranged on the clamping block (21).

6. The injection mold for the rear cover cap of a microphone according to claim 5, wherein: the positioning mechanism is a spring pin (22), the spring pin (22) is arranged on one side, facing the sliding rail (20), of the clamping block (21), and a plurality of clamping grooves (23) which are distributed along the length direction of the sliding rail (20) and are used for embedding the spring pin (22) are formed in the sliding rail (20).

7. The injection mold for the rear cover cap of a microphone according to claim 5, wherein: and a high-temperature-resistant silica gel layer (24) is arranged on the surface of one side, facing the fixed die holder (7), of the clamping block (21).

8. The injection mold for the rear cover cap of a microphone according to claim 1, wherein: the forming seat (9) is provided with a through hole (13) extending along the length direction of the forming seat, the lower surface of the fixed seat (7) is provided with a rotating rod (14) penetrating through the through hole (13), the lower end of the rotating rod (14) is provided with a support spring (15), and the two ends of the support spring (15) are connected with the lower ends of the lower die (5) and the rotating rod (14).

9. The injection mold for the rear cover cap of a microphone according to claim 1, wherein: the lower die (5) comprises a movable plate (55) forming a cavity (6) with the upper die (4) and a movable die fixing plate (54) used for mounting the movable plate (55), the movable plate (55) and the movable die fixing plate (54) are provided with communicated containing holes (25), return springs (27) are arranged in the containing holes (25), and two ends of each return spring (27) are respectively connected with the movable plate (55) and the movable die fixing plate (54).