CN210759008U - Ejector pin component applied to mold - Google Patents

Abstract

The utility model discloses an use thimble assembly on mould, including a fixed plate of being connected with lower bed frame, the fixed plate deviates from one side of bed frame is connected with a bottom plate down, the fixed plate with restrict out an ejecting cavity behind the bottom plate combination, be provided with the first push pedal and the second push pedal that the laminating is connected in the ejecting cavity to and the laminating is connected clamp plate on the fixed plate, be provided with a plurality of thimbles in the second push pedal, still be provided with a plurality of setting posts in the ejecting cavity, it is a plurality of the setting post passes first push pedal, second push pedal and clamp plate, its one end with bottom plate butt, the other end with the fixed plate butt, first push pedal still is connected with a push-and-pull rod, the push-and-pull rod passes the bottom plate with first push pedal is connected. The utility model discloses a thimble assembly is difficult for warping, and resets and ejecting difficult mistake making.

Description

Ejector pin component applied to mold

Technical Field

The utility model relates to a mould field especially relates to an use thimble assembly on mould.

Background

The mould plays an important role in industrial production as important process equipment in modern manufacturing industry. Because of its high forming speed and high precision, it is suitable for the production of complex parts, and can be extensively used in various fields of machinery, automobile, light industry and electronics, etc. The plastic mold belongs to one kind of injection mold, and the technical height is an important part for manufacturing industrial level height; modern industrial production requires high precision, long service life, high yield and high production speed of the die, which provides new challenges for the stability and durability of the die. The ejector pin assembly is an important component of the die, the existing ejector pin assembly is easy to deform in the using process, and the upper die core and the lower die core are often damaged by collision due to incomplete resetting.

Accordingly, there is a need in the art for a spike assembly that addresses one or more of the above-identified problems.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems that exist among the prior art, the utility model provides an use thimble assembly on mould.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: the utility model provides an use thimble assembly on mould, its includes a fixed plate of being connected with lower die frame, one side that the fixed plate deviates from lower die frame is connected with a bottom plate, the fixed plate with restrict out an ejecting cavity after the bottom plate makes up, be provided with first push pedal and the second push pedal that the laminating is connected in the ejecting cavity to and the laminating is connected clamp plate on the fixed plate, be provided with a plurality of thimbles on the second push pedal, still be provided with a plurality of setting posts in the ejecting cavity, a plurality of setting posts pass first push pedal, second push pedal and clamp plate, its one end with bottom plate butt, the other end with the fixed plate butt, first push pedal still is connected with a push-and-pull rod, the push-pull rod passes the bottom plate with first push pedal is connected.

Preferably, the ejector pins comprise a first ejector pin and a second ejector pin, the first ejector pin penetrates through to be flush with the upper surface of the lower mold core, and the second ejector pin is used for being connected with an ejector block on the lower mold core.

Preferably, the first push plate and the second push plate are provided with a reset inductor.

Compared with the prior art, the utility model has the advantages that the ejector pin component can be ejected and reset without errors through the matching of the reset inductor and the push-pull rod, so that the upper and lower die cores can not be damaged; in addition, the ejector pin component can be prevented from deforming in the using process by arranging the fixing plate (instead of directly connecting the bottom plate with the lower die frame), the shaping column and the guide columns.

Drawings

FIG. 1 is a schematic view of the overall structure of the preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of the upper mold assembly and the lower mold assembly of the preferred embodiment of the present invention after being assembled together;

FIG. 3 is a schematic structural view of the upper mold assembly according to the preferred embodiment of the present invention;

FIG. 4 is a schematic view of the upper mold assembly partially exploded in accordance with the preferred embodiment of the present invention;

FIG. 5 is a schematic view of the lower mold assembly according to the preferred embodiment of the present invention;

FIG. 6 is a schematic view of the slider assembly of the preferred embodiment of the present invention after assembly;

FIG. 7 is an exploded view of the slider assembly of the preferred embodiment of the present invention;

FIG. 8 is an exploded view of the side core and insert of the preferred embodiment of the invention;

FIG. 9 is a schematic view of a cooling duct according to a preferred embodiment of the present invention;

FIG. 10 is a schematic structural view of an upper mold leg according to a preferred embodiment of the present invention;

FIG. 11 is a schematic view of the lower mold leg according to the preferred embodiment of the present invention;

FIG. 12 is an exploded view of the preferred embodiment of the thimble assembly of the present invention;

FIG. 13 is an exploded view of the thimble assembly of the preferred embodiment of the present invention from another perspective

FIG. 14 is a schematic view of the assembled structure of the thimble assembly according to the preferred embodiment of the present invention;

FIG. 15 is a schematic structural view of a thread cutting mechanism according to a preferred embodiment of the present invention;

FIG. 16 is a schematic view of the construction of the tooth twisting rod according to the preferred embodiment of the present invention

Detailed Description

In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention. Such as

As shown in fig. 1-16, the present invention provides a plastic mold, which includes:

the mold comprises an upper mold assembly 100, a lower mold assembly 200 and a slider assembly 300 arranged between the upper mold assembly 100 and the lower mold assembly 200, wherein the upper mold assembly 100, the lower mold assembly 200 and the slider assembly 300 are combined to limit a mold cavity (not shown), and a tooth twisting mechanism 500 and an ejector pin assembly 400 are arranged on one side of the lower mold assembly 200; cooling pipelines 600 are also arranged in the upper die assembly 100 and the lower die assembly 200;

the thread winding mechanism 500 includes:

a driving gear 510 engaged with the driving gear 510 and inserted into a cutter tooth bar 520 of a mold cavity; the mold cavity is formed by combining and limiting an upper mold core 102 and a lower mold core 202;

the number of the transmission gears 510 is two, and the two transmission gears are arranged in a mirror symmetry manner; the transmission gear 510 comprises a driving wheel 511 and a first driven wheel 512 arranged below the driving wheel 511 and meshed with the driving wheel 511, two second driven wheels 513 are symmetrically meshed with two sides below the first driven wheel 512, and the two second driven wheels 513 are respectively meshed with one twisting tooth rod 520; the driving wheel 511 is further connected with a hydraulic motor 514, and the hydraulic motor 514 is used for driving the driving wheel 511 to rotate;

the thread twisting rod 520 comprises a base part 521, a thread rod part 522 and a driving part 523, the base part 521 is movably connected with the thread rod part 522 through threads, and the driving part 523 is sleeved on the thread rod part 522 and is meshed with the second driven wheel 513;

in the embodiment of the utility model, the die cavity is an inner cavity of the die, and the space of the formed workpiece in the die is the space for accommodating the sizing material and injecting and pressing the sizing material; in some specific molded workpieces having internal threads, in this embodiment, the die assembly is obtained by inserting the die rod 520 into the mold cavity (where the portion of the die rod inserted into the mold cavity has the first external thread 524), closing the mold and injecting the liquid glue, after the liquid glue is solidified, the portion of the molded workpiece corresponding to the first external thread 524 is formed with an internal thread, and then the transmission gear 510 drives the die rod 520 to rotate until the first external thread 524 is separated from the internal thread on the molded workpiece, and the upper mold core 102 is separated from the lower mold core 202, so that the molded workpiece can be removed.

In an embodiment of the present invention, the number of the tooth twisting rods 520 is four, and the tooth twisting rods are driven by two transmission gears 510, in this embodiment, the transmission gears 510 have little interference with the mold, and are easily separated from the mold;

in another embodiment of the present invention, the number of the thread twisting rods 520 is four, the number of the transmission gears 510 is one, and the transmission gears 510 are linked to drive the four thread twisting rods 520 to rotate, and the specific structure of the transmission gears 510 in another embodiment is: the driving wheel 511 is located at the center of the four twisted tooth rods 520, a first driven wheel 512 is meshed above and below the driving wheel 511, a second driven wheel 513 is meshed on two sides of one side of the first driven wheel 512, which is far away from the driving wheel 511, and the second driven wheels 513 are respectively meshed with one twisted tooth rod 520, in this embodiment, the transmission gear 510 slightly interferes with the mold, occupies a mold space and is not easy to remove;

the specific operation mode of the transmission gear 510 is as follows: the hydraulic motor 514 drives the driving wheel 511 to rotate, the first driven wheel 512 engaged with the driving wheel 511 is driven to rotate, the first driven wheel 512 drives the second driven wheel 513 to rotate, and the second driven wheel 513 drives the thread twisting rod 520 to rotate.

In this embodiment, the stem portion 522 is provided separately from other components, so that the stem portion 522 can be easily replaced and maintained (the stem portion 522 in the mold cavity needs to be frequently maintained).

In another embodiment of the present invention, the thread twisting mechanism further comprises a sensor, the sensor is in contact connection with the thread twisting rod 520, the sensor (not labeled) is used for detecting the length of the rotation line of the thread twisting rod 522, the sensor is connected with a PLC in advance, the PLC is connected with the hydraulic motor 514, two predetermined lengths are preset in the PLC, one predetermined length is used for enabling the first external thread 524 to be located in the mold cavity for producing the formed workpiece, and the other predetermined length is used for enabling the first external thread 524 to be separated from the formed workpiece; when the upper mold core 102 and the lower mold core 202 are closed, the PLC controls the hydraulic motor 514

Starting, so that the transmission gear 510 drives the toothed rod part 522 to rotate anticlockwise, so that a mold can produce a molded workpiece; before the upper mold core 102 and the lower mold core 202 need to be separated (after the formed workpiece is cured), the PLC controls the hydraulic motor 514 to be started, so that the transmission gear 510 drives the tooth bar portion 522 to rotate clockwise, so that the upper mold core 102 and the lower mold core 202 can be separated (the first external thread 524 is separated from the formed workpiece).

Further, the upper die assembly 100 comprises an upper die frame 101 and an upper die core 102 arranged in the upper die frame 101 in a clearance fit manner; four corners of the upper mold frame 101 are respectively provided with a guide post 103, a plurality of positioning lugs 104 arranged on the end surface of the upper mold frame 101, and a plurality of buffer posts 105 arranged corresponding to the positioning lugs 104; four corners of the upper mold core 102 are provided with a stand column 106, and the top end of the stand column 106 is provided with a positioning column 107;

the lower die assembly 200 comprises a lower die frame 201 and a lower die core 202 arranged in the lower die frame 201 in a clearance fit manner, the lower die core 202 corresponds to the upper die core 102, a matched guide hole 203 is formed in the position, corresponding to the guide post 103, of the lower die frame 201, and a positioning concave block 204 is correspondingly arranged on the end face of the lower die frame 201, corresponding to the positioning convex block 104; a boss 205 is arranged at the position of the lower mold core 202 corresponding to the upright column 106, and a positioning hole 206 is arranged at the top end of the boss 205 corresponding to the positioning column 107 in a matched manner.

Specifically, a connecting plate 112 and a feeding nozzle 113 arranged at the center of the connecting plate 112 are also attached and connected to one side surface of the upper mold frame 101, which is away from the upper mold core 102, and the feeding nozzle 113 penetrates through the connecting plate 112, the upper mold frame 101 and the upper mold core 102 to be flush with the upper surface of the upper mold core 102;

the upper die frame 101 is further provided with a clearance groove 109 for accommodating the sliding block assembly 300, a shovel machine 111 is arranged at the outer ring of the clearance groove 109, and a sliding block inclined column 110 is arranged in the clearance groove 109;

a slider groove 207 for mounting the slider assembly 300 is formed in the lower die frame 201, a pressing block 208 is arranged above the slider groove 207, a cushion block 209 is arranged at the bottom of the slider groove 207, and an inclined column hole is also formed at the bottom of the slider groove 207 corresponding to the slider inclined column 110 in a matched manner;

four ejection blocks 210 are also arranged on the lower mold core 202.

In the embodiment of the present invention, after the upper mold assembly 100 and the lower mold assembly 200 are combined, a partial mold cavity is formed (after the upper mold assembly 100, the lower mold assembly 200 and the slide block assembly 300 are combined, a complete mold cavity is formed); the clearance groove 109, the inclined slider column 110 and the shovel 111 are used for interfering with the slider assembly 300, when the upper die assembly 100 is combined with the lower die assembly 200, the shovel 111 and the inclined slider column 110 press and move the slider assembly 300 (towards the lower die core 202) until the slider assembly 300 moves to a preset position, and when the upper die assembly 100 is separated from the lower die assembly 200, the shovel 111 and the inclined slider column 110 move the slider assembly 300 away from the lower die core 202; the slider groove 207 and the pressing block 208 form a T-shaped groove, the slider assembly 300 is movably mounted in the T-shaped groove, and the cushion block 209 is made of alloy materials, so that abrasion caused by long-time use can be avoided.

Further, the slider assembly 300 comprises a slider body 301 and a side mold core 302 embedded on the slider body 301, a plurality of accommodating holes 309 are formed in one side surface of the side mold core 302 departing from the slider body 301, and a plurality of insert 303 is arranged in the accommodating holes 309 in a clearance fit manner.

Specifically, one side of the slider body 301, which is away from the side mold core 302, is an inclined surface, and two sides of the lower end of the slider body 301 are provided with a clamping block 305;

a first alloy sheet 307 is attached to the inclined surface, and a second alloy sheet 306 is attached to the lower end surface of the slider body 301;

the slide block assembly 300 is further provided with a slide block cooling water path 304, and the slide block cooling water path 304 flows through the slide block body 301 and the side mold core 302;

the accommodating hole 309 is further provided with a positioning boss, and a positioning concave table is arranged at the position of the insert 303 corresponding to the positioning boss;

the slider body 301 is further provided with an inclined hole 308. The inclined holes are in interference fit with the slider inclined posts 110 to drive the horizontal movement of the slider assembly 300.

Further, the cooling duct 600 includes an upper mold branch 610 and a lower mold branch 620; a first blocking piece 611 is axially arranged in the upper die branch pipe 610, and the first blocking piece 611 separates the interior of the upper die branch pipe 610 into two mutually independent chambers; the lower die branch pipe 620 comprises a first lower die branch pipe 621 and a second lower die branch pipe 623, the first lower die branch pipe 621 comprises a transverse branch pipe and a vertical branch pipe 622, the interior of the vertical branch pipe 622 is in a threaded shape, a second partition 624 is axially arranged in the second lower die branch pipe 623, and the second partition 624 separates the interior of the second lower die branch pipe 623 into two independent chambers.

Specifically, the cooling pipeline 600 further includes an integrated interface, and the integrated interface is used for connecting the cooling pipeline 600 with the outside and forming a circulation;

the integrated interface is further connected with a water flow control device, the water flow control device is further connected with a water temperature sensor, and the water temperature sensor is arranged in the integrated interface.

In the embodiment of the present invention, the first partition piece 611 and the second partition piece 624 separate the interior of the upper mold branch pipe 610 and the interior of the second lower mold branch pipe 623 into two independent chambers, so that the two independent chambers can be controlled by water flow in opposite directions, and the mold can be cooled more uniformly and rapidly; in addition, the interior of the vertical branch 622 is threaded, so that the heat dissipation area can be greatly increased; in addition, the temperature of the water flow in the integrated interface is monitored through a water temperature sensor, when the temperature is higher than a certain threshold value, the water flow controller accelerates the flow of the water, and when the temperature is lower than the certain threshold value, the water flow controller slows down the flow of the water.

Further, the thimble assembly 400 includes a fixing plate 410 connected to the lower mold frame 201, a bottom plate 420 is connected to a side of the fixing plate 410 facing away from the lower mold frame 201, the fixing plate 410 and the bottom plate 420 are combined to define an ejection cavity, a first push plate 430 and a second push plate 440 are arranged in the ejection cavity and are connected in an attaching manner, and a pressing plate 450 attached to the fixing plate 410, wherein the second pushing plate 440 is provided with a plurality of ejector pins 460, a plurality of shaping columns 470 are arranged in the ejection cavity, a plurality of shaping columns 470 penetrate through the first push plate 430, the second push plate 440 and the press plate 450, one end of the first push plate is abutted against the bottom plate 420, the other end of the first push plate is abutted against the fixed plate 410, the first push plate 430 is further connected with a push-pull rod 480, the push-pull rod 480 is connected to the first push plate 430 through the bottom plate 420.

Specifically, the ejector pins 460 include a first ejector pin and a second ejector pin, the first ejector pin penetrates through to be flush with the upper surface of the lower mold core 202, and the second ejector pin is used for ejecting the lower mold core 202

Block 210 is connected;

the first push plate 430 and the second push plate 440 are provided with a reset sensor 431. The reset sensor is used for detecting whether the first push plate 430 and the second push plate 440 are reset completely.

To sum up, the utility model discloses a plastic mould, it includes: the device comprises an upper die assembly, a lower die assembly and a sliding block assembly arranged between the upper die assembly and the lower die assembly, wherein the upper die assembly, the lower die assembly and the sliding block assembly are combined to define a die cavity, and one side of the upper die assembly and one side of the lower die assembly are provided with a tooth twisting mechanism and a thimble assembly; cooling pipelines are also arranged in the upper die assembly and the lower die assembly; the utility model discloses an go up the membrane module and lower membrane module non-deformable, the hank tooth mechanism is convenient for maintain and change, and sliding block assembly easy to maintain and change, but cooling water route furthest's assurance goes up the cooling environment of membrane module and lower membrane module, and thimble assembly guarantees its non-deformable, and the ejecting of thimble and resets can not make mistakes through the physics means.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (3)

1. The utility model provides an use thimble assembly on mould which characterized in that, thimble assembly includes a fixed plate of being connected with lower framed, the fixed plate deviates from one side of lower framed is connected with a bottom plate, the fixed plate with restrict out an ejecting cavity after the bottom plate makes up, be provided with the first push pedal and the second push pedal that the laminating is connected in the ejecting cavity to and the laminating is connected clamp plate on the fixed plate, be provided with a plurality of thimbles on the second push pedal, still be provided with a plurality of setting posts in the ejecting cavity, a plurality of setting posts pass first push pedal, second push pedal and clamp plate, its one end with the bottom plate butt, the other end with the fixed plate butt, first push pedal still is connected with a push-and-pull rod, the push-and-pull rod passes the bottom plate with first push pedal is connected.

2. The ejector pin assembly according to claim 1, wherein the ejector pins comprise a first ejector pin and a second ejector pin, the first ejector pin penetrates through the lower mold core to be flush with the upper surface of the lower mold core, and the second ejector pin is used for being connected with an ejector block on the lower mold core.

3. The ejector pin assembly according to claim 2, wherein a reset sensor is disposed on the first push plate and the second push plate.

Images