CN215392385U

CN215392385U - Accurate workpiece ejection device

Info

Publication number: CN215392385U
Application number: CN202121652008.8U
Authority: CN
Inventors: 胡士忠; 胡俊峰; 高齐兵
Original assignee: Bengbu Huaihai Die Casting Machines Co ltd
Current assignee: Bengbu Huaihai Die Casting Machines Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-04
Anticipated expiration: 2031-07-20

Abstract

The utility model relates to the technical field of ejection devices, in particular to a device for accurately ejecting workpieces, and solves the problem that in the prior art, ejection cannot be performed during mold splitting due to failure of a spring caused by continuous compression of an ejector pin spring. The utility model provides an accurate ejecting work piece device, includes the die casting machine and sets up first template and the second template on the die casting machine, all is equipped with the casting groove on first template and the second template, be equipped with the cavity in the first template, be equipped with the ejection mechanism who is used for ejecting work piece in the cavity, be equipped with the drive mechanism who is used for providing the required power of ejection mechanism on the die casting machine. The workpiece ejection device can eject the workpiece without using a spring, and meanwhile, the workpiece can be retracted into the storage box.

Description

Accurate workpiece ejection device

Technical Field

The utility model relates to the technical field of ejection devices, in particular to a device for accurately ejecting workpieces.

Background

The ejection device is a demoulding device, the ejection device is arranged in the use of various mould closing devices, the ejection device can be divided into mechanical ejection, hydraulic ejection, pneumatic ejection and the like, the ejection device is convenient to arrange for automatic ejection, and the working efficiency is greatly improved.

In the die casting machine, an ejection device can also be used, when the die casting machine works, firstly, the first template and the second template are matched, then hot molten metal is sprayed into a casting trough of the first template and the second template through high pressure, then after the workpieces are formed through cooling, the first template and the second template are separated, at the moment, the workpieces are arranged on the first template, and finally, the ejector pins push the workpieces to be separated from the first template, so that the workpieces can be collected.

In the use of die casting machine thimble, generally can control the thimble through the setting of spring, at the die-casting in-process, the spring pressurized always, long-time compression spring causes the inefficacy of spring easily to can not play ejecting effect at ejecting in-process, though also have some electric thimbles, nevertheless mostly all the structure is complicated, and installation cost is higher.

There is a need for an accurate workpiece ejection device that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for accurately ejecting workpieces, which solves the problems that in the prior art, an ejector pin spring is always compressed, so that the spring fails and cannot be ejected during die parting.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an accurate ejecting work piece device, includes the die casting machine and sets up first template and the second template on the die casting machine, all is equipped with the casting groove on first template and the second template, be equipped with the cavity in the first template, be equipped with the ejection mechanism who is used for ejecting work piece in the cavity, be equipped with the drive mechanism who is used for providing the required power of ejection mechanism on the die casting machine.

Preferably, ejection mechanism is including rotating the first threaded rod of connection in the cavity, threaded connection has the slider with cavity inner wall sliding connection on the first threaded rod, cavity inner wall fixedly connected with traveller, sliding connection has the connecting plate on the traveller, many thimbles of fixedly connected with on the connecting plate, rotate on the connecting plate and be connected with the driving plate, the driving plate rotates with the slider and is connected.

Preferably, a plurality of the ejector pins are flush with the inner wall of the casting material groove, and the ejector pins are in sealing sliding connection with the first template.

Preferably, drive mechanism includes the first pinion rack of fixed connection on the die casting machine, through pivot fixedly connected with and the first pinion rack engaged with first gear on the first threaded rod.

Preferably, the bottom of die casting machine is equipped with the open slot, be equipped with the direction mouth on the lateral wall of open slot, the open slot internal rotation is connected with the second threaded rod, threaded connection has the drive block with open slot inner wall sliding connection on the second threaded rod, through connecting block fixedly connected with scraper blade on the drive block, the front side of die casting machine is equipped with the containing box that is used for retrieving the work piece.

Preferably, the second threaded rod is fixedly connected with a second gear through a transmission shaft, and a second toothed plate meshed with the second gear is fixedly connected to the first template through a bearing plate.

Preferably, the length of the second toothed plate is greater than the distance between the first die plate and the second die plate, and the teeth of the first toothed plate are distributed at one end close to the second die plate.

The utility model has at least the following beneficial effects:

1. through setting up ejection mechanism and drive mechanism, avoid the use of spring, when first template moved left, first gear and the meshing of first pinion rack for first gear reversal, thereby many thimbles enter into the casting material inslot, ejecting the work piece, thereby avoid the use of spring, avoid causing the spring to become invalid because of long-term compression.

2. Through setting up scraper blade, second gear, realize automatic unloading, when first template removes left, can drive the motion of second gear to drive the reversal of second gear, make the rotation of second threaded rod drive the scraper blade and remove to the front end, will fall into the work piece of die-casting machine bottom and scrape into the containing box, realize automatic collection.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of a first perspective structure of an apparatus for precisely ejecting a workpiece according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic diagram of the internal structure of a cavity of an apparatus for precisely ejecting a workpiece according to the present invention;

fig. 4 is a second perspective structural diagram of an apparatus for precisely ejecting a workpiece according to the present invention.

In the figure: 1. die casting machine; 2. a first template; 3. a second template; 4. a casting trough; 5. a cavity; 6. a first threaded rod; 7. a slider; 8. a traveler; 9. a connecting plate; 10. a thimble; 11. a drive plate; 12. a first toothed plate; 13. a first gear; 14. an open slot; 15. a guide port; 16. a second threaded rod; 17. a second gear; 18. a squeegee; 19. a second toothed plate; 20. a storage box; 21. and a transmission block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-4, an accurate workpiece ejection device comprises a die casting machine 1, and a first template 2 and a second template 3 which are arranged on the die casting machine 1, wherein both the first template 2 and the second template 3 are provided with a casting groove 4, a cavity 5 is arranged in the first template 2, an ejection mechanism for ejecting a workpiece is arranged in the cavity 5, and the die casting machine 1 is provided with a transmission mechanism for providing power needed by the ejection mechanism.

Further, as can be known by referring to fig. 1 and 3, the ejection mechanism includes a first threaded rod 6 rotatably connected in the cavity 5, a slider 7 slidably connected with the inner wall of the cavity 5 is connected to the first threaded rod 6 through a thread, a sliding column 8 is fixedly connected to the inner wall of the cavity 5, a connecting plate 9 is slidably connected to the sliding column 8, a plurality of ejector pins 10 are fixedly connected to the connecting plate 9, a transmission plate 11 is rotatably connected to the connecting plate 9, the transmission plate 11 is rotatably connected to the slider 7, by arranging the first threaded rod 6, the ejector pins 10 and the like, when the first threaded rod 6 rotates, the slider 7 moves upwards, the transmission plate 11 moves to drive the connecting plate 9 to move, the ejector pins 10 enter the casting material groove 4, and the workpiece is ejected.

Further, as can be known by referring to fig. 3, the plurality of ejector pins 10 are all flush with the inner wall of the casting material groove 4, the ejector pins 10 are in sealing sliding connection with the first template 2, ejection of the workpiece is performed through the plurality of ejector pins 10, and the plurality of ejector pins 10 are all flush with the inner wall of the casting material groove 4, so that the condition that the die casting of the workpiece is incomplete is avoided.

Further, as can be known by referring to fig. 1 and 4, the transmission mechanism includes a first toothed plate 12 fixedly connected to the die casting machine 1, a first gear 13 engaged with the first toothed plate 12 is fixedly connected to the first threaded rod 6 through a rotating shaft, and by setting the first threaded rod 6, the first toothed plate 12 and the first gear 13, when the first die plate 2 and the second die plate 3 are separated from each other, the first gear 13 is engaged with the first toothed plate 12 to drive the first threaded rod 6 to rotate, so as to provide power for ejecting workpieces.

Further, refer to fig. 1 and 2 and learn, the bottom of die casting machine 1 is equipped with open slot 14, be equipped with direction mouth 15 on the lateral wall of open slot 14, the internal rotation of open slot 14 is connected with second threaded rod 16, threaded connection has the drive block 21 with 14 inner wall sliding connection of open slot on the second threaded rod 16, pass through connecting block fixedly connected with scraper blade 18 on the drive block 21, the front side of die casting machine 1 is equipped with containing box 20 that is used for retrieving the work piece, through setting up second threaded rod 16 and scraper blade 18, realize driving second gear 17 and rotating when 19 movements of second toothed plate, make the second threaded rod 16 rotate and drive block 21 and move to the inner end, make scraper blade 18 scrape the work piece into containing box 20 to the inner end motion.

Further, as can be known by referring to fig. 1 and 4, the second threaded rod 16 is fixedly connected with a second gear 17 through a transmission shaft, the first template 2 is fixedly connected with a second gear plate 19 engaged with the second gear 17 through a bearing plate, and the second gear 17 and the second gear plate 19 are arranged, so that external power is avoided, and power resources are saved.

Further, as can be known from fig. 1 and 4, the length of the second toothed plate 19 is greater than the distance between the first template 2 and the second template 3, the teeth of the first toothed plate 12 are distributed at one end close to the second template 3, and by setting the length of the second toothed plate 19 to be greater than the distance between the first template 2 and the second template 3, the situation that the second toothed plate 19 and the second gear 17 are limited in the film nucleation process of the first template 2 and the second template 3 is avoided.

The working principle is as follows: first, in the initial position, the first die plate 2 is separated from the second die plate 3, the ejector pin 10 enters the casting trough 4, the scraper 18 is at the front end of the die casting machine 1, then the die casting machine 1 works, the left end cylinder pushes the first template 2 and the second template 3 to move, so that the first template 2 drives the second gear plate 19 to move, the second gear 17 rotates, and second threaded rod 16 is rotated, rotation of second threaded rod 16 causes drive block 21 to move inwardly, causing scraper 18 to move inwardly, when the first template 2 approaches the second template 3, the first gear 13 is engaged with the first toothed plate 12, and then, the right movement is continued, so that the first gear 13 rotates to drive the first threaded rod 6 to rotate, the slide block 7 moves downwards, so that the transmission plate 11 moves to drive the connecting plate 9 to move, and the ejector pins 10 are retracted into the cavity 5 and attached to the inner wall of the casting material groove 4.

After the die-casting is completed, the cylinder at the left end of the die-casting machine 1 contracts, so that the first template 2 moves leftwards, the first gear 13 rotates reversely at the moment, a plurality of ejector pins 10 enter the casting material groove 4 to eject a workpiece, the ejected workpiece falls to the bottom of the die-casting machine 1, and meanwhile, when the first template 2 moves leftwards, the second gear 17 rotates reversely to enable the scraper 18 to move towards the front end, and the workpiece falling to the bottom of the die-casting machine 1 is scraped into the containing box 20.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an accurate ejecting work piece device, includes die casting machine (1) and first template (2) and second template (3) of setting on die casting machine (1), its characterized in that, all be equipped with on first template (2) and second template (3) casting trough (4), be equipped with cavity (5) in first template (2), be equipped with the ejection mechanism who is used for ejecting work piece in cavity (5), be equipped with the drive mechanism who is used for providing the required power of ejection mechanism on die casting machine (1).

2. The device for accurately ejecting the workpiece according to claim 1, wherein the ejection mechanism comprises a first threaded rod (6) rotatably connected in the cavity (5), a sliding block (7) slidably connected with the inner wall of the cavity (5) is connected to the first threaded rod (6) in a threaded manner, a sliding column (8) is fixedly connected to the inner wall of the cavity (5), a connecting plate (9) is slidably connected to the sliding column (8), a plurality of ejector pins (10) are fixedly connected to the connecting plate (9), a transmission plate (11) is rotatably connected to the connecting plate (9), and the transmission plate (11) is rotatably connected with the sliding block (7).

3. A device for accurately ejecting workpieces as claimed in claim 2, characterized in that a plurality of said ejector pins (10) are flush with the inner wall of the casting trough (4), said ejector pins (10) being in sealed sliding connection with the first die plate (2).

4. The device for accurately ejecting out a workpiece according to claim 2, characterized in that the transmission mechanism comprises a first toothed plate (12) fixedly connected to the die casting machine (1), and a first gear (13) meshed with the first toothed plate (12) is fixedly connected to the first threaded rod (6) through a rotating shaft.

5. The device for accurately ejecting the workpiece according to claim 4, wherein an open slot (14) is formed in the bottom of the die casting machine (1), a guide port (15) is formed in a side wall of the open slot (14), a second threaded rod (16) is rotationally connected in the open slot (14), a transmission block (21) which is slidably connected with the inner wall of the open slot (14) is in threaded connection with the second threaded rod (16), a scraper (18) is fixedly connected onto the transmission block (21) through a connecting block, and a containing box (20) for recovering the workpiece is arranged on the front side of the die casting machine (1).

6. A device for accurately ejecting workpieces as claimed in claim 5, characterized in that the second threaded rod (16) is fixedly connected with a second gear (17) through a transmission shaft, and the first die plate (2) is fixedly connected with a second toothed plate (19) engaged with the second gear (17) through a bearing plate.

7. An accurate workpiece ejection device according to claim 6, characterized in that the length of the second toothed plate (19) is greater than the distance between the first template (2) and the second template (3), the teeth of the first toothed plate (12) being distributed close to one end of the second template (3).