CN211137940U

CN211137940U - Ejection mechanism of injection mold

Info

Publication number: CN211137940U
Application number: CN201921563303.9U
Authority: CN
Inventors: 刘高笋
Original assignee: Noyi Environmental Equipment Manufacturing Beijing Co ltd
Current assignee: Noyi Environmental Equipment Manufacturing Beijing Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-31
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses an injection mold's ejection mechanism, including support and movable plate, support top surface fixedly connected with supporting wheel, and the supporting wheel top is provided with the movable plate to the movable plate bottom surface corresponds the supporting wheel position and is provided with the track. Has the advantages that: the utility model discloses the side form has been set up, the die block, mold core and ejection mechanism, ejection mechanism work, charge air pump passes through gas injection pipe and shunt tubes and pours into high-pressure gas into to the gas transmission channel into, high-pressure gas promotes the piston downstream, the piston passes through ejector pin promotion sprue and moves down, thereby fall the work piece top, accomplish ejecting drawing of patterns work, ejecting completion back, charge air pump stop work, the spring kick-backs rapidly, it plugs up the blow vent to drive the sprue, be convenient for mould plastics next time, the ejection mechanism ejecting action of this device adoption is rapid, and ejecting back automatic recovery normal position, it is higher for the ejecting efficiency of hydraulic stem, and simultaneously, the while simple structure, use a charge air pump can accomplish the drawing of patterns, low in cost.

Description

Ejection mechanism of injection mold

Technical Field

The utility model relates to an injection mold technical field particularly, relates to an injection mold's ejection mechanism.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate sizes, a plurality of ejector rods are arranged inside the structure of the injection mold, the ejector rods are ejected out under the driving of a cylinder or a hydraulic rod, and a formed workpiece is ejected out of a mold cavity to facilitate unloading.

The hydraulic stem ejecting action is slower, ejecting efficiency is lower, if use the cylinder ejecting, although reached quick ejecting purpose, nevertheless, need arrange the multiunit cylinder and carry out ejecting, the structure is complicated, leads to the cost to increase, and simultaneously, the work piece in ejecting mould chamber still is at the mould top surface, has only accomplished the drawing of patterns, still needs to carry out artifical transport, just can transport to next process, and transfer efficiency is lower.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an injection mold's ejection mechanism possesses ejecting efficient, transports the convenient advantage of work piece, and then solves the problem among the above-mentioned background art.

(II) technical scheme

For realizing the above-mentioned ejecting efficient, transport the convenient advantage of work piece, the utility model discloses a concrete technical scheme as follows:

an ejection mechanism of an injection mold comprises a support and a movable plate, wherein a support wheel is fixedly connected to the top surface of the support, the movable plate is arranged above the support wheel, a track is arranged on the bottom surface of the movable plate corresponding to the position of the support wheel, the support wheel is clamped in the track, a mold core is fixedly connected to the bottom surface of the movable plate, a bottom mold is arranged below the mold core, the bottom surface of the bottom mold is connected with the bottom surface of the support through a vertical cylinder, a side mold is arranged on the outer side of the mold core, the side mold is connected with the inner wall of the support through a transverse cylinder, an injection molding pipe is connected to the vertical central position of the mold core in a penetrating manner, one end of the injection molding pipe is connected with the discharge end of the injection molding machine through a connecting hose, an air transmission channel is connected to the inner part of the mold core, the top, and ejection mechanism is including ventilating mounting panel, sleeve pipe, piston, sprue, blow vent, ejector pin and spring, the mounting panel of ventilating transversely with gas transmission channel inner wall fixed connection, and gas transmission channel bottom surface fixedly connected with sleeve pipe to the inside sliding connection of sleeve pipe has the piston, the piston passes through the spring and ventilates mounting panel fixed connection, and the piston bottom surface passes through ejector pin and sprue fixed connection, the mold core bottom surface is located gas transmission channel bottom surface and has seted up the blow vent, and blow vent cross-sectional dimension is the same with sprue cross-sectional dimension.

Furthermore, a conveyor belt is erected above the bottom surface of the support on one side of the mold core, an end plate is vertically and fixedly connected above the bottom surface of one end of the support and is connected with the movable plate through a longitudinal cylinder, and the stroke of the longitudinal cylinder is equal to the horizontal linear distance from the center of the bottom surface of the mold core to the top surface of the conveyor belt.

Further, the side form passes through stabilizer bar and support inner wall connection, the die block passes through the stabilizer bar and is connected with the support bottom surface, the stabilizer bar comprises interior pole, sleeve and centre gripping wheel, and sleeve inner wall fixedly connected with centre gripping wheel to interior pole inserts in the sleeve and with centre gripping wheel moving face butt.

Furthermore, the sum of the transverse contraction distances of the transverse cylinders is greater than the length of the mold core, and the distance between the bottom surface of the mold core and the top surface of the conveyor belt is not less than the height of the workpiece.

Furthermore, the gas transmission channel is provided with a plurality of, and the gas transmission channel bottom surface avoids the weak department of work piece structure to set up.

Furthermore, the top surface of the side die is abutted to the die core, and the two side dies are symmetrically arranged along the vertical central line of the die core.

(III) advantageous effects

Compared with the prior art, the utility model provides an injection mold's ejection mechanism possesses following beneficial effect:

(1) the utility model is provided with a side mould, a bottom mould, a mould core and an ejection mechanism, after injection molding, a vertical cylinder contracts to drive the bottom mould to be separated from the side mould, the bottom surface of a workpiece leaks out at the moment, then a horizontal cylinder contracts to drive the side mould to move towards two sides, the outer surface of the workpiece is completely exposed, the workpiece is attached to the surface of the mould core at the moment due to the principle of thermal expansion and cold contraction, then the ejection mechanism works, a booster air pump injects high-pressure gas into an air transmission channel through an air injection pipe and a shunt pipe, the high-pressure gas pushes a piston to move downwards, the piston pushes a block to move downwards through an ejector rod, thereby pushing the workpiece down, the ejection demoulding work is completed, after ejection is completed, the booster air pump stops working, a spring rebounds rapidly, the block is driven to block a vent, next injection molding is convenient, the, the ejection efficiency is higher for the hydraulic stem, simultaneously, simple structure uses a forced air pump can accomplish the drawing of patterns simultaneously, low in cost.

(2) The utility model discloses a vertical cylinder, movable plate, removal wheel and conveyer belt, after the horizontal cylinder shrink was accomplished, vertical cylinder extension promoted mold core and work piece and removed to directly over the conveyer belt, then ejection mechanism work falls the work piece top, and the work piece after the top directly falls the conveyer belt surface, is conveyed to next station department, accomplishes the automatic discharging after ejecting, and is more automatic, has saved the trouble that the workman transported the work piece, has improved the efficiency of unloading.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an ejection mechanism of an injection mold according to the present invention;

fig. 2 is a partially enlarged view of an ejection mechanism of an injection mold according to the present invention;

fig. 3 is a side view of an ejection mechanism of an injection mold according to the present invention;

fig. 4 is a schematic structural view of the stabilizer bar of the present invention.

In the figure:

1. a support; 2. a support wheel; 3. a track; 4. a movable plate; 5. a connecting hose; 6. injection molding a tube; 7. a shunt tube; 8. a gas injection pipe; 9. a charge air pump; 10. a mold core; 11. side mould; 12. a gas transmission channel; 13. an ejection mechanism; 14. a conveyor belt; 15. bottom die; 16. a vertical cylinder; 17. a stabilizer bar; 18. a transverse cylinder; 19. a ventilation mounting plate; 20. a sleeve; 21. A piston; 22. blocking; 23. a vent; 24. a top rod; 25. a spring; 26. an end plate; 27. A longitudinal cylinder; 28. an inner rod; 29. a sleeve; 30. and (4) clamping the wheel.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides an injection mold's ejection mechanism.

Referring now to the drawings and the detailed description, as shown in fig. 1-4, an ejection mechanism of an injection mold according to an embodiment of the present invention includes a support 1 and a movable plate 4, a support wheel 2 is fixedly connected to a top surface of the support 1, the movable plate 4 is disposed above the support wheel 2, a rail 3 is disposed on a bottom surface of the movable plate 4 corresponding to the position of the support wheel 2, the support wheel 2 is clamped in the rail 3, the movable plate 4 moves along the support wheel 2, a mold core 10 is fixedly connected to a bottom surface of the movable plate 4, a bottom mold 15 is disposed below the mold core 10, a bottom surface of the bottom mold 15 is connected to the bottom surface of the support 1 through a vertical cylinder 16, the bottom mold 15 moves up and down through the vertical cylinder 16, a side mold 11 is disposed outside the mold core 10, the side mold 11 is connected to an inner wall of the support 1 through a horizontal cylinder 18, the vertical center of the mold core 10 is connected with an injection molding pipe 6 in a penetrating way, an injection molding opening of the injection molding pipe 6 is communicated with a mold cavity, one end of the injection molding pipe 6 is connected with a discharge end of an injection molding machine through a connecting hose 5, the injection molding pipe is a common injection molding connection form, and not described herein, the mold core 10 is internally communicated with a gas transmission channel 12, the top surface of the gas transmission channel 12 is communicated with a gas injection pipe 8 through a shunt pipe 7, the other end of the gas injection pipe 8 is communicated with a gas outlet end of a booster air pump 9, the booster air pump 9 can select types according to the number of the gas transmission channel 12, an ejection mechanism 13 is arranged inside the gas transmission channel 12, the ejection mechanism 13 comprises a ventilation mounting plate 19, a sleeve 20, a piston 21, a block 22, a vent 23, an ejector rod 24 and a spring 25, the ventilation mounting plate 19 is transversely fixedly connected with the, and the bottom surface of the gas transmission channel 12 is fixedly connected with a sleeve 20, the gas transmission channel 12 and the sleeve 20 are of a through structure, the sleeve 20 is internally connected with a piston 21 in a sliding manner, the piston 21 is fixedly connected with a ventilation mounting plate 19 through a spring 25, the bottom surface of the piston 21 is fixedly connected with a plug 22 through a push rod 24, the push rod 24 penetrates through the bottom surface of the sleeve 20, the bottom surface of the mold core 10 is positioned at the bottom surface of the gas transmission channel 12 and is provided with a vent 23, the cross-sectional dimension of the vent 23 is the same as that of the plug 22, injection molding liquid is prevented from flowing into the gas transmission channel 12, after injection molding, a vertical cylinder 16 contracts to drive a bottom mold 15 to be separated from a side mold 11, the bottom surface of a workpiece leaks at the moment, then a transverse cylinder 18 contracts to drive the side mold 11 to move towards two sides, the outer surface, the high-pressure gas is injected into the gas transmission channel 12 through the gas injection pipe 8 and the shunt pipe 7 by the booster air pump 9, the high-pressure gas pushes the piston 21 to move downwards, the piston 21 pushes the plug block 22 to move downwards through the ejector rod 24, thereby pushing down a workpiece, the ejection demoulding operation is completed, after ejection is completed, the booster air pump 9 stops working, the spring 25 rebounds rapidly, the plug block 22 is driven to plug the vent 23, the next injection moulding is convenient, the ejection mechanism 13 adopted by the device rapidly ejects, and the ejection mechanism automatically restores the original position after ejection, the ejection efficiency is higher relative to a hydraulic rod, meanwhile, the structure is simple, demoulding can be completed by using one booster air pump 9, and the manufacturing cost is low.

In one embodiment, a conveyor belt 14 is erected above the bottom surface of the support 1 at one side of the mold core 10, the arrangement direction of the conveyor belt 14 can be adjusted according to actual conditions, an end plate 26 is vertically and fixedly connected above the bottom surface of one end of the support 1, the end plate 26 is connected with the movable plate 4 through a longitudinal cylinder 27, the stroke of the longitudinal cylinder 27 is equal to the horizontal linear distance from the center of the bottom surface of the mold core 10 to the top surface of the conveyor belt 14, a workpiece can be ensured to fall on the top surface of the conveyor belt 14, after the transverse cylinder 18 is contracted, the longitudinal cylinder 27 is extended to push the mold core 10 and the workpiece to move to be right above the conveyor belt 14, then the ejection mechanism 13 works, the working principle of the ejection mechanism 13 is described in the previous embodiment, and is not described in any more detail herein, the workpiece is ejected, the workpiece falls directly falls on, more automatic, save the trouble that the workman transported the work piece, improved the efficiency of unloading.

In one embodiment, the side die 11 is connected with the inner wall of the support 1 through the stabilizer bar 17, the bottom die 15 is connected with the bottom surface of the support 1 through the stabilizer bar 17, the stabilizer bar 17 is composed of an inner rod 28, a sleeve 29 and a clamping wheel 30, the inner wall of the sleeve 29 is fixedly connected with the clamping wheel 30, the inner rod 28 is inserted into the sleeve 29 and is abutted to the rotating surface of the clamping wheel 30, the clamping wheel 30 limits the inner rod 28 to shake, the inner rod 28 can enter and exit the sleeve 29 smoothly and stably, the inner rod 28 is fixedly connected with the side wall of the side die 11 and the bottom surface of the bottom die 15, the sleeve 29 is fixedly connected with the inner wall of the support 1 and the bottom surface of the support 1, the function of stabilizing the contraction of the transverse cylinder 18 and the vertical cylinder 16 is achieved, and the stabilizer.

In one embodiment, the sum of the transverse contraction distances of the transverse air cylinders 18 is larger than the length of the mold core 10, after the transverse air cylinders 18 are contracted, the mold core 10 is not influenced to move out of the side mold 11, and the distance between the bottom surface of the mold core 10 and the top surface of the conveyor belt 14 is not smaller than the height of a workpiece, so that the workpiece can be ensured to fall to the top surface of the conveyor belt 14 completely.

In one embodiment, the plurality of gas transmission channels 12 are arranged, and the bottom surface of the gas transmission channel 12 is arranged to avoid structural weakness of the workpiece, so that the forming quality of the workpiece is prevented from being damaged by large kinetic energy when the blocking block 22 is ejected.

In one embodiment, the top surfaces of the side molds 11 abut against the mold core 10 to seal the top surfaces of the side molds 11 and the mold core 10 to prevent liquid leakage, meanwhile, the top surface of the bottom mold 15 abuts against the bottom surface of the side molds 11, rubber pads are arranged on the top surfaces of the bottom mold 15 and the bottom surfaces of the side molds 11, after the bottom mold 15 abuts against the side molds 11, the rubber pads deform to block gaps, so that liquid leakage is prevented, the two side molds 11 are symmetrically arranged along the vertical central line of the mold core 10, the rubber pads are also arranged on the butt joint surfaces of the two side molds 11, and after butt joint, the rubber pads deform to block.

The working principle is as follows:

the device is moved to a proper position, an injection molding machine is switched on, a transverse cylinder 18, a longitudinal cylinder 27 and a vertical cylinder 16 of the device are electrically connected with a control switch through a timing circuit, the control switch can be P L C or a PC control end, after injection molding, the vertical cylinder 16 contracts to drive a bottom die 15 to be separated from a side die 11, the bottom surface of a workpiece leaks, then the transverse cylinder 18 contracts to drive the side die 11 to move towards two sides, the outer surface of the workpiece is completely exposed, the workpiece is attached to the surface of a mold core 10 at the moment due to the principle of thermal expansion and cold contraction, after the transverse cylinder 18 contracts, the longitudinal cylinder 27 extends to push the mold core 10 and the workpiece to move right above a conveyor belt 14, an ejection mechanism 13 works, a pressurized air pump 9 injects high-pressure air into an air conveying channel 12 through an air injection pipe 8 and a shunt pipe 7, the high-pressure air pushes a piston 21 to move downwards, the piston 21 pushes the plug 22 to move downwards through an ejector rod 24, the workpiece is pushed to fall, the work is completed, the ejection work, the ejected workpiece directly falls to the next work station, the ejected workpiece is automatically plugged, the automatic ejection mechanism is more conveniently, the ejection efficiency of the ejection mechanism is improved, the ejection mechanism is more conveniently recovered, the work efficiency of a pressurized air pump 9, the ejection mechanism is more conveniently, the ejection mechanism is.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The ejection mechanism of the injection mold is characterized by comprising a support (1) and a movable plate (4), wherein a supporting wheel (2) is fixedly connected to the top surface of the support (1), the movable plate (4) is arranged above the supporting wheel (2), a track (3) is arranged on the bottom surface of the movable plate (4) corresponding to the position of the supporting wheel (2), the supporting wheel (2) is connected in the track (3), a mold core (10) is fixedly connected to the bottom surface of the movable plate (4), a bottom mold (15) is arranged below the mold core (10), the bottom surface of the bottom mold (15) is connected with the bottom surface of the support (1) through a vertical cylinder (16), a side mold (11) is arranged on the outer side of the mold core (10), the side mold (11) is connected with the inner wall of the support (1) through a transverse cylinder (18), an injection molding pipe (6) is penetratingly connected to the vertical central position of the mold core (10), and one end of the injection molding pipe, the gas injection mold is characterized in that a gas transmission channel (12) is connected with the inside of the mold core (10) in a penetrating manner, the top surface of the gas transmission channel (12) is connected with a gas injection pipe (8) in a penetrating manner through a flow dividing pipe (7), the other end of the gas injection pipe (8) is connected with the gas outlet end of a booster air pump (9) in a penetrating manner, an ejection mechanism (13) is arranged inside the gas transmission channel (12), the ejection mechanism (13) comprises a ventilation mounting plate (19), a sleeve (20), a piston (21), a blocking block (22), a vent (23), an ejector rod (24) and a spring (25), the ventilation mounting plate (19) is transversely fixedly connected with the inner wall of the gas transmission channel (12), the bottom surface of the gas transmission channel (12) is fixedly connected with the sleeve (20), the piston (21) is connected with the inside the sleeve (20) in a sliding manner, the piston (21) is fixedly connected with the ventilation mounting plate (19) through the, and the bottom surface of the mold core (10) is positioned on the bottom surface of the gas transmission channel (12) and is provided with a vent hole (23), and the sectional dimension of the vent hole (23) is the same as that of the blocking block (22).

2. An ejection mechanism of an injection mold according to claim 1, characterized in that a conveyor belt (14) is erected above the bottom surface of the bracket (1) on one side of the mold core (10), an end plate (26) is vertically and fixedly connected above the bottom surface of one end of the bracket (1), and the end plate (26) is connected with the movable plate (4) through a longitudinal cylinder (27), wherein the stroke of the longitudinal cylinder (27) is equal to the horizontal linear distance from the center of the bottom surface of the mold core (10) to the top surface of the conveyor belt (14).

3. The ejection mechanism of the injection mold as claimed in claim 1, wherein the side mold (11) is connected with the inner wall of the support (1) through a stabilizer bar (17), the bottom mold (15) is connected with the bottom surface of the support (1) through the stabilizer bar (17), the stabilizer bar (17) is composed of an inner rod (28), a sleeve (29) and a clamping wheel (30), the inner wall of the sleeve (29) is fixedly connected with the clamping wheel (30), and the inner rod (28) is inserted into the sleeve (29) and is abutted against the rotating surface of the clamping wheel (30).

4. An injection mold ejection mechanism as claimed in claim 1 or 2, wherein the sum of the transverse contraction distances of the transverse cylinders (18) is greater than the length of the mold core (10), and the distance between the bottom surface of the mold core (10) and the top surface of the conveyor belt (14) is not less than the height of the workpiece.

5. An ejection mechanism of an injection mold according to claim 1, wherein the gas delivery channel (12) is provided in plurality, and the bottom surface of the gas delivery channel (12) is arranged to avoid structural weakness of the workpiece.

6. The ejection mechanism of an injection mold according to claim 1, wherein the top surface of the side mold (11) is abutted against the mold core (10), and two side molds (11) are symmetrically arranged along the vertical center line of the mold core (10).