CN105619719B - A mould for toothbrush shell - Google Patents

Abstract

The invention relates to the technical field of injection molds, and particularly discloses a mold for a toothbrush shell, which comprises an upper mold core and a lower mold core matched with the upper mold core, wherein a mold cavity is arranged between the upper mold core and the lower mold core, the upper mold core or the lower mold core is provided with an injection port communicated with the mold cavity, the mold also comprises a first mold core arranged on the upper mold core or the lower mold core, and a second mold core arranged on the upper mold core or the lower mold core, the upper mold core and the lower mold core are both positioned between the first mold core and the second mold core, the first mold core is connected with the upper mold core or the lower mold core in a sliding manner, the second mold core is provided with a convex column, the convex column is positioned in; after the injection molding of the mold is completed, the first mold core slides towards the direction far away from the second mold core and is separated from the second mold core, so that a user can conveniently and quickly take down the toothbrush shell sleeved on the convex column.

Description

A mold for a toothbrush shell

technical field

The invention relates to the technical field of injection molds, and in particular discloses a mold for a toothbrush shell.

Background technique

Toothbrushes currently on the market are divided into two categories, one is the traditional common toothbrush, this type of toothbrush needs the user to hold the toothbrush in the oral cavity to move back and forth to clean the teeth; the other is the toothbrush, the user holds the toothbrush Enter the mouth and clean the teeth through the rotation and vibration of the toothbrush itself. Compared with ordinary toothbrushes, toothbrushes can instantly decompose toothpaste into fine foams, deeply clean between teeth, the vibration of bristles can promote blood circulation in the mouth, and have an unexpected massage effect on gum tissue. In addition, toothbrushes can more thoroughly remove dental bacteria plaque, reduce gingivitis and bleeding gums, therefore, toothbrushes are more and more widely used.

In the process of producing toothbrushes, since the battery and control components need to be installed in the toothbrush casing, the requirements for producing the toothbrush casing are correspondingly relatively high. Most of the existing molds are used to produce ordinary toothbrushes, which need to be modified in many ways Only the required toothbrush shell can be produced, so the mold structure will be complicated, and the use is extremely inconvenient, which seriously affects the production efficiency of the toothbrush shell.

Contents of the invention

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a mold for the toothbrush shell, which has a reasonable design and structure, and can greatly improve the production efficiency of the toothbrush shell compared with the traditional mold.

For achieving the above object, a kind of mold that is used for toothbrush shell of the present invention comprises upper die core, the lower die core that cooperates with upper die core, is provided with die cavity between upper die core and lower die core, upper die core or lower die core The mold core is provided with an injection port communicating with the mold cavity, and also includes a first mold core installed on the upper mold core or the lower mold core, a second mold core installed on the upper mold core or the lower mold core, the upper mold core, The lower mold cores are located between the first mold core and the second mold core. The first mold core is slidably connected to the upper mold core or the lower mold core. The mold core cooperates with the boss.

Preferably, the mold further includes a push plate, the first mold core, the lower mold core and the second mold core are all installed on the push plate, the first mold core includes a first slide block slidably connected to the push plate, the first slide The block mates with the boss.

Preferably, the mold further includes an upper fixing plate and a lower fixing plate, the push plate is installed between the upper fixing plate and the lower fixing plate, the upper mold core is installed on the upper fixing plate, and the lower mold core is installed on the lower fixing plate , the push plate is provided with a through hole, and the lower mold core is located in the through hole.

Preferably, the first mold core further includes a first slide rail and a drive plate, the first slide rail is mounted on the push plate, the first slide block is slidably connected to the first slide rail, the first slide block is provided with a chute, The chute extends downward from the first slider and away from the through hole. The driving plate is installed on the upper fixing plate, and the driving plate is provided with a slanting block installed in the chute.

Preferably, the second mold core includes a baffle plate, a second slide rail, a driver and a second slider, the baffle plate, the second slide rail and the driver are all installed on the push plate, and the second slider is installed on the The second slide rail, the baffle is located between the through hole and the second slider, the second slider is located between the stopper and the driver, and the end of the protruding post away from the first mold core passes through the baffle and is connected to the second slider , the driver is connected with the second slider.

Preferably, the second mold core further includes a third slider and a core puller, the third slider is slidably connected to the second slide rail, the third slider is installed between the second slider and the driving member, and the boss A guide groove is provided, and the core puller is installed in the guide groove. One end of the core puller close to the third slider passes through the second slider and is connected to the third slider, and the driving member is connected to the third slider.

Preferably, the protrusion is provided with a notch communicating with the guide groove, and a protrusion is installed in the notch, and a slide groove is provided on the core pulling, and the slide groove extends away from the third slider and the notch, and the protrusion The block is connected to the chute.

Preferably, the upper fixing plate includes a top plate, a nozzle plate, an upper splint and a first guide column installed on the top plate, the nozzle plate and the upper splint are slidably connected to the first guide column, and the nozzle plate is installed between the top plate and the upper splint Between them, the upper splint is installed between the nozzle plate and the push plate, the upper mold core is installed on the upper splint, the top plate is provided with a gate, and the gate is connected to the injection port through the top plate, the nozzle plate, and the upper splint.

Preferably, the lower fixing plate includes a lower splint, a supporting plate and a second guide post mounted on the supporting plate, the lower splint is slidably connected to the second guide post, the lower splint is installed between the push plate and the supporting plate, the lower The mold core is installed on the lower splint.

Preferably, the supporting plate includes a bottom plate and a square iron installed on the bottom plate, the second guide column is installed on the bottom plate and runs through the square iron, the square iron is installed between the lower clamping plate and the bottom plate, and the mold also includes an ejector mechanism, the ejector mechanism is installed between the lower splint and the bottom plate, the square iron is located outside the ejector mechanism, the ejector mechanism includes the ejector plate, ejector pin and elastic parts, the ejector plate is installed on the bottom plate, and the ejector plate is located on the lower Between the splint and the bottom plate, the thimble is installed on the ejector plate to hold the push plate. The lower splint is provided with a perforation matched with the thimble. The thimble is located in the perforation. Between the ejection plates, the bottom plate is provided with ejection holes exposing the ejection plates.

Beneficial effects of the present invention: in actual use, the first mold core and the second mold core are installed on the upper mold core or the lower mold core, and the first mold core is slid to match the convex column with the slot, and the upper mold core is installed on the The mold closing is completed on the lower mold core. The material is injected into the mold cavity through the injection port, and the molded toothbrush shell is set on the boss and located in the mold cavity. After the injection molding is completed, the upper mold core is opened upward, so that the upper mold core and the toothbrush shell are separated. , slide the first mold core so that the first mold core is separated from the second mold core, and the user can easily and quickly remove the toothbrush shell sleeved on the convex post. The mold design structure of the present invention is reasonable. Compared with Traditional molds can greatly improve the production efficiency of toothbrush shells.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of an exploded structure of the present invention;

Fig. 3 is the decomposed structure schematic diagram of upper splint, upper mold core, first mold core, second mold core, push plate, lower mold core and lower splint of the present invention;

Fig. 4 is a schematic diagram of the exploded structure of the drive plate, the first mold core and the second mold core of the present invention;

Fig. 5 is a schematic diagram of the exploded structure of the boss, core-pulling and protrusion of the present invention;

Fig. 6 is a schematic perspective view of the three-dimensional structure of the ejection mechanism of the present invention.

Reference signs include:

1—top plate 10—gate 11—nozzle plate

12—upper splint 120—buffer groove 121—buffer hole

122—block 123—through slot 13—first guide post

14—the first clip 15—the second clip 16—drive board

17—slope block 2—push plate 20—through hole

30—upper die core 300—limiting slot 31—lower die core

310—limiting block 311—block piece 40—third clamping strip

41—the fourth clip 42—the lower splint 420—groove

421—perforation 43—square iron 44—bottom plate

440—Ejection hole 45—Second guide post 46—Third guide post

5—the first mold core 50—the first slider 51—the slot

52—the first slide rail 53—the chute 6—the second mold core

60—boss 600—guiding groove 601—core pulling

602—notch 603—protrusion 604—chute

61—Baffle 62—Second slide rail 63—Driver

64—Second slider 65—Third slider 7—Ejector mechanism

70—ejector plate 71—thimble 72—elastic piece

73—limit post.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention.

Please refer to Fig. 1, Fig. 2 and Fig. 3, a kind of mold that is used for toothbrush housing of the present invention, comprises upper mold kernel 30, the lower mold kernel 31 that cooperates with upper mold kernel 30, upper mold kernel 30 and lower mold kernel 31 Fastened together, a mold cavity (not shown) is provided between the upper mold core 30 and the lower mold core 31, and an injection port communicating with the mold cavity is provided on the upper mold core 30 or the lower mold core 31 (Fig. not shown), in this embodiment, the injection port is located on the upper mold core 30, and also includes the first mold core 5 and the second mold core 6 installed on the upper mold core 30 or the lower mold core 31. The mold core 30 and the lower mold core 31 are both located between the first mold core 5 and the second mold core 6, the first mold core 5 is slidably connected to the upper mold core 30 or the lower mold core 31, and the second mold core 6 is set There is a boss 60 installed in the mold cavity, and the first mold core 5 is provided with a slot 51 matching with the boss 60 .

In actual use, install the first mold core 5 and the second mold core 6 on the upper mold core 30 or the lower mold core 31, slide the first mold core 5 to fit the boss 60 and the slot 51 together, and place the upper mold core 30 and the lower mold core 31. Mold core 30 is installed on the lower mold core 31 to complete mold closing. The material is injected into the mold cavity through the injection port, and the molded toothbrush shell is set on the boss 60 and is located in the mold cavity. After the injection molding is completed, the upper mold core 30 is opened upwards, so that the upper mold core 30 is aligned with the mold cavity. The toothbrush casing is separated, and the first mold core 5 is slid to separate the first mold core 5 from the second mold core 6. The user can easily and quickly remove the toothbrush casing that is sleeved on the boss 60. The mold design structure is reasonable, compared with the traditional mold, it can greatly improve the production efficiency of the toothbrush shell.

Please refer to Fig. 2 and Fig. 3, the described mold that is used for toothbrush housing also comprises upper fixed plate, push plate 2 and lower fixed plate, and push plate 2 is installed between upper fixed plate and lower fixed plate, and upper fixed plate A gate 10 is provided, and the gate 10 communicates with the injection port through the upper fixing plate. The upper mold core 30 is installed on the upper fixed plate, the lower mold core 31 is installed on the lower fixed plate, the push plate 2 is provided with a through hole 20 passing through the push plate 2, the lower mold core 31 is located in the through hole 20, the first mold core 5 Both the second mold core 6 and the second mold core 6 are installed on the push plate 2 , and the first mold core 5 and the second mold core 6 are respectively located on the left and right sides of the through hole 20 .

The first mold core 5 includes a first slider 50 that is slidably connected to the push plate 2 , the draw-in groove 51 is located on the side of the first slider 50 close to the second mold core 6 , and the boss 60 extends from the second mold core 6 It is formed by protruding from one side close to the first mold core 5 .

The upper fixing plate includes a top plate 1, a nozzle plate 11, an upper clamping plate 12 and a first guide post 13 installed on the top plate 1, the nozzle plate 11 is installed between the top plate 1 and the upper clamping plate 12, and the upper clamping plate 12 is installed Between the nozzle plate 11 and the push plate 2, the upper mold core 30 is installed on the lower end of the upper splint 12, and the gate 10 passes through the top plate 1, the nozzle plate 11, and the upper splint 12 in order to communicate with the injection port, and the top plate 1 is roughly flat. Rectangular, of course, the top plate 1 can also be set into a circle, pentagon or other shapes as needed, the first guide post 13 is roughly a long cylindrical shape, and the first guide post 13 can also be set as a triangular pyramid as needed shape, pentagonal pyramid and other shapes. In this embodiment, the number of the first guide pillars 13 is four, of course, according to specific needs, those skilled in the art can increase or decrease the number of the first guide pillars 13, for example, reduce the number of the first guide pillars 13 to one, or increase to six.

The nozzle plate 11 is roughly the same shape as the top plate 1, and the nozzle plate 11 is slidably connected to the first guide post 13. After the injection molding of the toothbrush shell is completed, the top plate 1 together with the nozzle plate 11 is moved upwards to open the mold, and then the The nozzle plate 11 slides down along the first guide post 13 to separate the top plate 1 from the nozzle plate 11, and then the residual material in the flow channel between the top plate 1 and the lower clamping plate 42 is conveniently and quickly taken out, ready for the next injection molding Prepare.

The upper splint 12 is slidably connected to the first guide post 13, the upper surface of the upper splint 12 is provided with a buffer groove 120, the buffer groove 120 is provided with a buffer hole 121 communicating with the injection port, the gate 10 passes through the top plate 1, the nozzle The plate 11 is connected to the buffer groove 120, and the connection position between the gate 10 and the buffer groove 120 and the buffer hole 121 are spaced apart from each other. The injection molding material flows through the gate 10 to the buffer groove 120, and then flows into the mold cavity through the buffer hole 121 . By adding the buffer tank 120, the flow rate of the injection molding material is reduced, so that the gas in the injection molding material can be volatilized as much as possible, ensuring that the toothbrush casing after injection molding does not have sand holes, and improving the quality of the finished product of the toothbrush casing.

In this embodiment, the shape of the buffer tank 120 is roughly V-shaped, prolonging the residence time of the injection molding material in the buffer tank 120, and further assisting in reducing the gas in the injection molding material; of course, according to needs, those skilled in the art can also The buffer tank 120 is arranged in Z-shape, H-shape and other shapes. In addition, since the reduction of the flow rate of the injection molding material will reduce the production efficiency of the toothbrush shell, in order not to affect the production efficiency under the premise of ensuring the quality of the toothbrush shell, preferably, a plurality of buffer holes 121 are arranged in the buffer tank 120, increasing the The amount of injection molding material that flows into the cavity.

Please refer to Fig. 1 and Fig. 2, in order to ensure that the upper fixing plate, the push plate 2, and the lower fixing plate are quickly and accurately assembled together, in this embodiment, the outer side of the nozzle plate 11 is equipped with a first spaced apart and parallel arrangement. A clamping strip 14 and a second clamping strip 15, a clamping block 122 is installed on the outside of the upper splint 12, and a plurality of clamping holes (not shown in the figure) are arranged on the clamping block 122, and the first clamping strip 14 is inserted into one of the clamping holes inside and extend to the lower fixed plate. The outer side of the lower fixing plate is installed with a third clamping strip 40 and a fourth clamping strip 41 spaced apart from each other and arranged in parallel. The third clamping strip 40 is inserted into another clamping hole, and the third clamping strip 40 extends to the upper splint 12 and protrudes The card output block 122 ; the fourth clamping strip 41 extends to the upper splint 12 and is provided with a gap (not shown in the figure), and the second clamping strip 15 extends to the upper splint 12 and is installed in the gap.

Please refer to Fig. 2 and Fig. 3, the upper splint 12 is provided with a through groove 123, the through groove 123 is recessed from the lower surface of the upper splint 12, the through groove 123 runs through the upper splint 12 along the left and right direction, and the upper mold core 30 is roughly It is in the shape of a cuboid, and the upper mold core 30 is installed in the through groove 123 . In order to prevent the upper mold core 30 and the lower mold core 31 from being installed incorrectly, in this embodiment, the lower end of the upper mold core 30 is concavely provided with a limit groove 300, and the upper end of the lower mold core 31 is convexly provided with a limit block 310. When the upper mold core 30 When cooperating with the lower mold core 31 , the limiting block 310 is correspondingly installed in the limiting groove 300 . Of course, those skilled in the art can also increase the number of limiting blocks 310 /limiting slots 300 according to specific needs.

In this embodiment, the lower mold core 31 is installed in the through hole 20 from the bottom of the push plate 2 and protrudes from the upper surface of the push plate 2, and the lower end of the lower mold core 31 is provided with a blocking piece 311, Located between the lower surface of the push plate 2 and the lower fixing plate, the area of the blocking piece 311 is larger than the area of the through hole 20, so as to prevent the lower die core 31 from being excessively inserted into the through hole 20, and it is also convenient for the user to hold the blocking piece 311 to remove the lower mold Kernel 31, the area of the lower mold kernel 31 gradually shrinks along the direction away from the stopper 311, ensuring that the lower mold kernel 31 can move downward to open the mold so as to realize the detachment and separation of the toothbrush shell and the lower mold kernel 31.

The lower fixing plate includes a lower splint 42, a square iron 43, a base plate 44 and a second guide post 45 installed on the base plate 44, the lower mold core 31 is installed on the upper end of the lower splint 42, and the square iron 43 is installed on the lower splint 42 and the base plate. 44, the second guide post 45 runs through the square iron 43 and protrudes from the upper surface of the square iron 43, the lower splint 42 is slidably connected on the second guide post 45, and the lower splint 42 is installed between the push plate 2 and the square iron 43. In between, the lower die core 31 is installed on the upper surface of the lower splint 42 .

The lower mold core 31 is roughly in the shape of a cuboid. In order to facilitate the lower mold core 31 to be quickly placed on the predetermined position on the lower clamping plate 42, in this embodiment, the lower clamping plate 42 is provided with a groove 420, and the groove 420 is formed from the lower clamping plate 42. During actual installation, the user first places the lower mold core 31 in the groove 420, and then fixes the lower mold core 31 on the lower splint 42 by screws or the like.

Please refer to Fig. 2 and Fig. 3, after the push plate 2 is installed on the lower clamping plate 42, the lower mold core 31 protrudes from the through hole 20, and the first mold core 5 and the second mold core 6 are respectively located on the lower mold core. On the left and right sides of the kernel 31, the upper mold kernel 30 is fastened on the lower mold kernel 31, and the convex column 60 of the second mold core 6 is installed in the mold cavity formed by the upper mold kernel 30 and the lower mold kernel 31. After the mold clamping of the present invention is completed, one end of the protruding post 60 close to the first mold core 5 is installed in the draw-in groove 51, and the toothbrush shell is set on the protruding post 60 by injection molding. After the mold of the present invention is opened , slide the first mold core 5 along the push plate 2 and then disengage from the second mold core 6, and the toothbrush shell can be easily removed.

In this embodiment, the second mold core 6 is provided with two protrusions 60, and the first mold core 5 is correspondingly provided with two slots 51. In this way, the mold of the present invention can obtain two Of course, according to specific needs, those skilled in the art can also increase or decrease the number of protrusions 60/card slots 51, and then set the number of toothbrush shells obtained after one injection molding.

Referring to Fig. 2, Fig. 3 and Fig. 4, the first mold core 5 also includes a first slide rail 52 installed on the push plate 2, the first slide rail 52 is roughly strip-shaped, and the first slide rail 52 includes two Two rails spaced apart from each other and arranged in parallel, the first slider 50 slidably connected between the two rails, the first slider 50 is provided with a chute 53, and the chute 53 is recessed from the upper surface of the first slider 50 The chute 53 extends downward from the first slider 50 and extends away from the through hole 20. The top plate 1 is provided with a drive plate 16 that matches the chute 53, and the drive plate 16 is vertical from the top plate 1. Extending downwards, the lower end of the driving plate 16 is provided with a slanting block 17 matching the chute 53 , and the slanting block 17 extends downward from the driving plate 16 and away from the lower mold core 31 .

When the top plate 1 moves upward to open the mold, the top plate 1 drives the driving plate 16 to move upward, so that the first slider 50 slides relative to the inclined block 17, and then forces the first slider 50 to move away from the lower mold along the first slide rail 52. The movement of the core 31 makes the slot 51 and the boss 60 separate from each other, so that the first mold core 5 and the second mold core 6 are separated from each other, and the toothbrush shell is also separated from the first slider 50 .

The second mold core 6 includes a baffle plate 61 installed on the push plate 2, a second slide rail 62, and a driver 63. The second slide rail 62 also includes two rails spaced apart from each other and arranged in parallel. The second slide block 64 on the two slide rails 62, the baffle plate 61 is installed between the through hole 20 and the second slide block 64, the second slide block 64 is installed between the baffle plate 61 and the driver 63, the boss The end of 60 away from the first mold core 5 passes through the baffle plate 61 and is connected to the second slider 64 , and the driving member 63 is connected to the second slider 64 .

After the first mold core 5 is separated from the second mold core 6, the driving member 63 drives the second slider 64 to move along the second slide rail 62 in a direction away from the lower mold core 31, and the toothbrush housing follows the boss 60 Move together, when the toothbrush shell moves to the baffle plate 61, the baffle plate 61 blocks the toothbrush shell, and the driver 63 pulls the boss 60 to continue moving until the boss 60 is extracted from the toothbrush shell, so that the toothbrush shell falls freely. In this embodiment, the driving member 63 adopts an oil cylinder to ensure that the driving member 63 has sufficient power and sufficient stroke distance. Of course, according to specific needs, those skilled in the art can also set the driving member 63 as driving a motor or driving a cylinder, etc. power source.

The second mold core 6 also includes a third slide block 65 slidably connected to the second slide rail 62, the third slide block 65 is installed between the second slide block 64 and the driver 63, and the boss 60 is provided with Guide groove 600, the guide groove 600 is recessed from the end of the boss 60 away from the first mold core 5, the guide groove 600 is equipped with a core-pulling 601, and the end of the core-pulling 601 close to the third slider 65 runs through the second slider 64 and is connected on the third slider 65, and the driver 63 is connected with the third slider 65.

Please refer to FIG. 3 , FIG. 4 and FIG. 5 , when the first mold core 5 is separated from the second mold core 6 , the driver 63 pulls the third slider 65 along the second slide rail 62 toward the side away from the lower mold core 31 . direction, after the third slider 65 and the core-pulling 601 move a preset distance, the core-pulling 601 moves together with the boss 60 until the boss 60 is pulled out from the toothbrush casing, and then the toothbrush casing is free to fall. Those skilled in the art can set a stopper (not shown in the figure) in the guide groove 600, and a stop bar (not shown in the figure) on the core puller 601. When the driving member 63 pulls the core puller 601 to move a preset distance , the blocking bar stops on the block, and then the driving member 63 pulls the core pulling 601 and the boss 60 to move together. Of course, those skilled in the art can also set a slider (not shown) connecting the second slider 64 and the third slider 65, so that the third slider 65 can slide along the slider relative to the second slider 64, The slide bar is set to a predetermined length, and when the driver 63 pulls the core puller 601 to move a preset distance, the distance between the third slide block 65 and the second slide block 64 reaches the maximum length of the slide bar, and then the drive piece 63 pulls the puller 601 to move the preset distance. The core 601 and the stud 60 move together.

The boss 60 is provided with a notch 602 communicating with the guide groove 600, the notch 602 is formed by recessing from the outer surface of the boss 60, and a protrusion 603 is also installed in the notch 602, and the protrusion 603 protrudes out of the outer surface of the boss 60, so that the position of the formed toothbrush housing corresponding to the protrusion 603 forms a required pit, and the end of the core pulling 601 away from the third slider 65 is provided with a chute 604, and the chute 604 faces Extending in a direction away from the third sliding block 65 and the notch 602 , the protruding block 603 is engaged in the sliding slot 604 , and the protruding block 603 can slide in the sliding slot 604 .

When the driving member 63 pulls the third slider 65 to move along the second slide rail 62, the third slider 65 moves together with the core puller 601, so that the protruding block 603 moves relative to the core puller 601 along the chute 604, because the chute 604 extends away from the notch 602, so that the protrusion 603 is gradually retracted into the notch 602. When the protrusion 603 is retracted to the outer surface of the protrusion 60, the protrusion 603 can be blocked. Stopping on the side wall of the notch 602, an obstacle block (not shown in the figure) can also be set in the guide groove 600, and the protruding block 603 retracts into the guide groove 600 and abuts on the obstacle block, so that the core pulling 601 It moves together with the boss 60, and then the boss 60 is pulled out from the toothbrush housing. In this embodiment, the number of protrusions 60/notches 602/sliding grooves 604 is two, and those skilled in the art can also increase or decrease the number of protrusions 60/notches 602/sliding grooves 604, for example, The number of studs 60/notches 602/slots 604 is reduced to one, or increased to four.

Referring to Fig. 1, Fig. 2 and Fig. 6, in the present embodiment, two square irons 43 arranged at intervals from each other are installed on the base plate 44, and the lower splint 42 is slidably connected to the second guide post 45; for the convenience of the lower splint 42. Assembling between the push plate 2 and the upper clamp 12, in order to prevent the upper clamp 12, the push plate 2, and the lower clamp 42 from sliding relative to each other, the lower clamp 42 is also equipped with a third guide post 46, the third The guide post 46 runs through the push plate 2 and extends into the upper splint 12 . Of course, according to specific needs, those skilled in the art can also extend the first guide post 13 through the nozzle plate 11 , the upper splint 12 , the push plate 2 , the lower splint 42 and into the square iron 43 in sequence.

The mold of the present invention also includes an ejection mechanism 7, the ejection mechanism 7 is installed between the lower clamping plate 42 and the bottom plate 44, and the ejection mechanism 7 is located between two square irons 43, that is, the square iron 43 is located outside the ejection mechanism 7 , to ensure that external objects will not touch the ejection mechanism 7, avoid damage to the ejection mechanism 7 due to collision, and prolong the service life of the ejection mechanism 7. Of course, those skilled in the art can also set the square iron 43 as one, and set a through hole (not shown in the figure) passing through the square iron 43 up and down, and accommodate the ejection mechanism 7 in the through hole.

The ejector mechanism 7 includes an ejector plate 70 installed on the base plate 44, the ejector plate 70 is installed between the lower clamping plate 42 and the base plate 44, the ejector plate 70 is located between two square irons 43, and is installed on the top The thimble 71 on the ejection plate 70, the lower splint 42 is provided with a perforation 421 that matches the thimble 71, the thimble 71 is installed in the perforation 421 for supporting the push plate 2, and the bottom plate 44 is also provided with a hole that exposes the ejection plate 70. Eject hole 440 . When the push plate 2 needs to be moved upwards to open the mold, the ejector plate 70 is moved upward through the ejection hole 440 by an external object, and the ejector plate 70 moves upward together with the thimble 71, and the thimble 71 passes through the perforation 421 of the upper splint 12 and Butt against the lower surface of the push plate 2, and then move the push plate 2 upwards, so that the toothbrush shell and the lower mold core 31 are separated. According to needs, those skilled in the art can also increase the quantity of ejector pins 71, so that the opposite ends of the push plate 2 are correspondingly provided with ejector pins 71, on the one hand, the ejection force of the push plate 2 is increased, and the moving speed of the push plate 2 is accelerated; On the one hand, it can also make the two ends of the push plate 2 roughly balanced to ensure that the push plate 2 moves smoothly.

In this embodiment, the ejector pin 71 is also covered with an elastic member 72, and the elastic member 72 is installed between the lower splint 42 and the ejector plate 70, and the ejector force is buffered by the elastic member 72 to prevent the ejection plate 70 from The greater ejection force received is directly transmitted to the push plate 2 through the thimble 71, preventing the service life of the push plate 2 from being reduced due to the greater ejection force, or preventing the greater ejection force received by the push plate 2 from being transmitted to the toothbrush shell Damage to the toothbrush case.

A limiting column 73 is also installed on the ejector plate 70 , and the limiting column 73 extends from the ejector plate 70 toward the direction close to the lower splint 42 . Set at intervals, the ejector plate 70 moves upward together with the thimble 71 and the limit post 73. When the limit post 73 abuts on the lower clamping plate 42, the ejector plate 70 cannot continue to move upward. At this time, the thimble 71 has pushed the push plate 2 upward. Move to the desired location for the reservation. By adding the limit post 73, it is ensured that the ejection mechanism 7 does not need to move upwards excessively, so that the ejection mechanism 7 can complete the required ejection work in the shortest time, and further assists in improving the production efficiency of the toothbrush shell.

To sum up, it can be known that the present invention has the above-mentioned excellent characteristics, which enables it to improve the performance that is not available in the prior art in use, and has practicability, and becomes a product with great practical value.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (7)

1. a kind of mold that is used for toothbrush shell, comprises upper die kernel, the lower mold kernel that cooperates with upper mold kernel, is provided with die cavity between upper mold kernel and lower mold kernel, and upper mold kernel or lower mold kernel is provided with mold The injection port connected to the cavity; also includes the first mold core installed on the upper mold core or the lower mold core, the second mold core installed on the upper mold core or the lower mold core, the upper mold core and the lower mold core are located in the second Between the first mold core and the second mold core, the first mold core is slidably connected to the upper mold core or the lower mold core, the second mold core is provided with a boss, and the boss is located in the mold cavity, and the first mold core is matched with the boss ; characterized by: The mold also includes a push plate, the first mold core, the lower mold core and the second mold core are all installed on the push plate, the first mold core includes a first slider that is slidably connected to the push plate, and the first slider and the convex column fit; The mold also includes an upper fixed plate and a lower fixed plate, the push plate is installed between the upper fixed plate and the lower fixed plate, the upper mold core is installed on the upper fixed plate, the lower mold core is installed on the lower fixed plate, and the push plate A through hole is provided, and the lower mold core is located in the through hole; The second mold core includes a baffle plate, a second slide rail, a driver and a second slider, the baffle plate, the second slide rail and the driver are all mounted on the push plate, and the second slide block is mounted on the second slide Rail, the baffle is located between the through hole and the second slider, the second slider is located between the stopper and the driving piece, the end of the protruding column away from the first mold core passes through the baffle and is connected to the second slider, the driving piece Connect with the second slider. 2. The mold for the toothbrush housing according to claim 1, characterized in that: the first mold core also includes a first slide rail and a drive plate, the first slide rail is installed on the push plate, and the first slide block Slidingly connected to the first slide rail, the first slider is provided with a chute, the chute extends downward from the first slider and away from the through hole, the drive plate is installed on the upper fixing plate, and the drive plate is provided with Inclined block installed in the chute. 3. The mold for the toothbrush housing according to claim 1, characterized in that: the second mold core also includes a third slider and a core puller, the third slider is slidably connected to the second slide rail, and the third The slider is installed between the second slider and the driver, the boss is provided with a guide groove, the core puller is installed in the guide groove, and the end of the core puller close to the third slider passes through the second slider and is connected to the third slider. The sliding block is connected with the third sliding block by the driving part. 4. The mold for the toothbrush shell according to claim 3, characterized in that: the convex column is provided with a notch connected with the guide groove, a protrusion is arranged in the notch, a slide groove is provided for the core pulling, and the slide The groove is formed by extending away from the third sliding block and the notch, and the protruding block is connected with the sliding groove. 5. The mold for the toothbrush housing according to claim 1, wherein the upper fixing plate includes a top plate, a nozzle plate, an upper splint and a first guide post installed on the top plate, and the nozzle plate and the upper splint slide Connected to the first guide post, the nozzle plate is installed between the top plate and the upper splint, the upper splint is installed between the nozzle plate and the push plate, the upper mold core is installed on the upper splint, the top plate is provided with a gate, and the gate passes through The top plate, the nozzle plate, and the upper splint are in communication with the injection port. 6. The mold for the toothbrush housing according to claim 1, wherein the lower fixing plate includes a lower clamping plate, a supporting plate and a second guide post installed on the supporting plate, and the lower clamping plate is slidably connected to the second guide post. The guide column and the lower splint are installed between the push plate and the supporting plate, and the lower mold core is installed on the lower splint. 7. The mold for the toothbrush shell according to claim 6, characterized in that: the supporting plate includes a base plate and a square iron installed on the base plate, the second guide post is installed on the base plate and runs through the square iron, the square iron Installed between the lower splint and the bottom plate, the mold also includes an ejection mechanism, the ejection mechanism is installed between the lower splint and the bottom plate, the square iron is located outside the ejection mechanism, and the ejection mechanism includes an ejection plate, an ejector pin And elastic parts, the ejector plate is installed on the base plate, the ejector plate is located between the lower splint and the base plate, the thimble is installed on the ejector plate to hold the push plate, the lower splint is provided with a perforation that matches the thimble, and the thimble is located In the perforation, the elastic piece is sleeved on the thimble, the elastic piece is located between the lower splint and the ejector plate, and the bottom plate is provided with an ejection hole exposing the ejector plate.