CN209869314U - Secondary ejection structure - Google Patents

Secondary ejection structure Download PDF

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Publication number
CN209869314U
CN209869314U CN201920695275.XU CN201920695275U CN209869314U CN 209869314 U CN209869314 U CN 209869314U CN 201920695275 U CN201920695275 U CN 201920695275U CN 209869314 U CN209869314 U CN 209869314U
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Prior art keywords
ejection
die
groove
cavity
transmission
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CN201920695275.XU
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Chinese (zh)
Inventor
曹常团
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Suzhou Qinglang Industrial Technology Co Ltd
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Suzhou Qinglang Industrial Technology Co Ltd
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Abstract

The utility model discloses a secondary ejection structure, which comprises a mould body, wherein the upper end surface of the mould body is provided with a mould groove for injection moulding, first ejection grooves are formed in the left side wall and the right side wall of the die cavity, first ejection blocks are connected in the two first ejection grooves in a sliding mode, a second ejection groove is arranged at the inner bottom of the die groove, a second ejection block is connected in the second ejection groove in a sliding manner, two first cavities are arranged in the die body, the two first cavities are distributed on the left side and the right side of the die cavity, first ejection mechanisms for ejecting injection molded parts at one time are arranged in the two first cavities, a second cavity is arranged in the die body, a second ejection mechanism for ejecting the injection molding piece for the second time is arranged in the second cavity, the first ejection mechanism and the second ejection mechanism are in transmission connection through a first transmission mechanism. The utility model discloses ejecting effect is better and the yield is higher.

Description

Secondary ejection structure
Technical Field
The utility model relates to an injection mold technical field especially relates to an ejecting structure of secondary.
Background
The die is a tool for making a blank into a finished piece with a specific shape and size under the action of external force, and is widely used for blanking, die forging, cold heading, extrusion, powder metallurgy piece pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like, the die has a specific contour or an inner cavity shape, and the blank can be separated according to the contour shape of a contour line by applying the contour shape with a cutting edge; the blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity, and the die generally comprises a movable die and a fixed die (or a male die and a female die), wherein the movable die and the fixed die can be separated and combined, a workpiece is taken out when the movable die and the fixed die are separated, and the blank is injected into a die cavity for forming when the movable die and the fixed die are combined. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.
Most of the existing molds only have one ejection part to eject out the injection molding part, so that the injection molding part is easy to break when ejected out, the broken injection molding part is inconvenient to take out, the phase change is caused, the yield is reduced, and the ejection effect is poor.
Therefore, a double-ejection structure is proposed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the injection molding part is easy to break and has poor ejection effect in the prior art, and providing a secondary ejection structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a secondary ejection structure, includes the mould body, the up end of mould body is equipped with the die cavity of usefulness of moulding plastics, all be equipped with first ejecting groove, two on the lateral wall about the die cavity equal sliding connection has first ejecting piece in the first ejecting groove, the interior bottom of die cavity is equipped with second ejecting groove, sliding connection has the ejecting piece of second in the ejecting groove of second, this internal two first cavitys that are equipped with of mould, two first cavitys distribute in the left and right sides of die cavity, two all be equipped with in the first cavity and be used for carrying out ejecting first ejection mechanism once to the injection molding, this internal second cavity that is equipped with of mould, be equipped with in the second cavity and be used for carrying out ejecting second ejection mechanism twice to the injection molding, be connected through the transmission of first drive mechanism between first ejection mechanism and the second ejection mechanism.
Preferably, first ejection mechanism includes two pivot of being connected with the vertical rotation of first cavity inside wall respectively, two the equal coaxial fixedly connected with carousel in upper end of pivot, two the non-centre of a circle department in upper end of carousel all rotates and is connected with the deflection pole, two the one end that the carousel was kept away from to the deflection pole all rotates and is connected with the knock-out rod, two the one end that the deflection pole was kept away from to the knock-out rod all slides and runs through the mould body and extend to two first liftout inslot respectively and with first ejecting piece fixed connection, two the lower extreme of pivot all rotates and runs through the mould body and extend to in the second cavity, fixedly connected with motor, one of them in the second cavity the lower extreme of pivot and the coaxial fixed connection of drive shaft of motor, two pass through the transmission of second drive mechanism between the pivot and connect.
Preferably, the second transmission mechanism comprises two first belt pulleys, the two first belt pulleys are respectively and fixedly connected with the two rotating shafts in a coaxial manner, and the two first belt pulleys are in transmission connection through a belt.
Preferably, the second ejection mechanism comprises a rotating shaft vertically and rotatably connected with the second cavity, a threaded rod is connected to the upper end of the rotating shaft in a threaded manner, and the threaded rod is in transmission connection with the second ejection block through a delay mechanism.
Preferably, the time delay mechanism is including setting up the spout at the ejecting inslot bottom of second, sliding connection has the slider in the spout, the lower extreme of slider is equipped with T type groove, the vertical sliding connection in T type groove has the liftout plate, the upper end of threaded rod slides and runs through mould body and recess and extends to T type inslot, the upper end of threaded rod and the lower extreme fixed connection of liftout plate.
Preferably, first drive mechanism includes second belt pulley and third belt pulley, the coaxial fixed connection of second belt pulley and one of them pivot, third belt pulley and the coaxial fixed connection of axis of rotation, be connected through belt transmission between second belt pulley and the third belt pulley.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the arrangement of the first ejection mechanism, the two rotating shafts are driven to rotate through the motor, the two rotating shafts drive the two rotating discs to rotate, the two rotating discs drive the two deflection rods to deflect in a reciprocating manner, the two deflection rods drive the two ejection rods to move in a reciprocating manner, and the two ejection rods drive the two first ejection blocks to move, so that an injection molding piece can be pre-ejected out, and the injection molding piece is separated from the inner wall of the mold cavity;
2. through setting up second ejection mechanism, drive the pivot through the motor and rotate, the pivot drives the axis of rotation and rotates, and the axis of rotation drives the threaded rod and goes up and down, and the threaded rod drives the liftout plate and goes up and down, and after the upper end of liftout plate and T type inslot top looks butt, the liftout plate continues to remove, and the liftout plate drives the slider and removes, and the slider drives the ejecting piece of second and removes to can be ejecting with the injection molding, ejecting effect is better, and has improved the yield through ejecting operation in advance.
The utility model discloses ejecting effect is better and the yield is higher.
Drawings
Fig. 1 is a front perspective view of a double ejection structure according to the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
In the figure: the mold comprises a mold body 1, a mold cavity 2, a first ejection block 3, a second ejection block 4, a first cavity 5, a first ejection mechanism 6, a second cavity 7, a second ejection mechanism 8, a first transmission mechanism 9, a rotating shaft 10, a rotating disc 11, a deflection rod 12, an ejection rod 13, a motor 14, a second transmission mechanism 15, a first belt pulley 16, a rotating shaft 17, a threaded rod 18, a time delay mechanism 19, a sliding block 20, a T-shaped groove 21, an ejection plate 22, a second belt pulley 23 and a third belt pulley 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a secondary ejection structure comprises a mold body 1, a mold cavity 2 for injection molding is arranged on the upper end surface of the mold body 1, first ejection grooves are respectively arranged on the left side wall and the right side wall of the mold cavity 2, first ejection blocks 3 are respectively connected in the two first ejection grooves in a sliding manner, a second ejection groove is arranged at the inner bottom of the mold cavity 2, and second ejection blocks 4 are respectively connected in the second ejection grooves in a sliding manner, it should be noted that the end surfaces of the two first ejection blocks 3 and the second ejection block 4 which are positioned in the mold cavity 2 are respectively matched with the inner side wall of the mold cavity 2, two first cavities 5 are arranged in the mold body 1, the two first cavities 5 are distributed on the left side and the right side of the mold cavity 2, first ejection mechanisms 6 for ejecting injection molded parts once are respectively arranged in the two first cavities 5, concretely, each first ejection mechanism 6 comprises a rotating shaft 10 which is vertically and rotatably connected with the inner side wall of the first cavity 5, the upper ends of the two rotating shafts 10 are coaxially and fixedly connected with rotating discs 11, non-circle centers of the upper ends of the two rotating discs 11 are rotatably connected with deflection rods 12, and one ends, far away from the rotating discs 11, of the two deflection rods 12 are rotatably connected with ejector rods 13.
In the utility model, the ends of the two ejector rods 13 far from the deflection rod 12 slide to penetrate through the die body 1 and extend into the two first ejector grooves and are fixedly connected with the first ejector block 3, the lower ends of the two rotating shafts 10 rotate to penetrate through the die body 1 and extend into the second cavity 7, the second cavity 7 is fixedly connected with the motor 14, it should be noted that the motor 14 can adopt a stepping motor with the model number of 42BYGH34 and is electrically connected with an external power supply, which is a prior art and not repeated in detail, wherein the lower end of one rotating shaft 10 is coaxially and fixedly connected with the driving shaft of the motor 14, the two rotating shafts 10 are in transmission connection through the second transmission mechanism 15, it is worth mentioning that the second transmission mechanism 15 comprises two first belt pulleys 16, the two first belt pulleys 16 are respectively and coaxially and fixedly connected with the two rotating shafts 10, the two first belt pulleys 16 are in transmission connection through a belt, the die comprises a die body 1, wherein a second cavity 7 is arranged in the die body 1, a second ejection mechanism 8 for performing secondary ejection on an injection molding piece is arranged in the second cavity 7, the second ejection mechanism 8 comprises a rotating shaft 17 vertically and rotatably connected with the second cavity 7, and a threaded rod 18 is connected to the upper end of the rotating shaft 17 in a threaded manner.
The utility model discloses in, be connected through the 19 transmission of delay mechanism between threaded rod 18 and the ejecting piece 4 of second, it needs to explain, delay mechanism 19 is including setting up the spout at the ejecting inslot bottom of second, sliding connection has slider 20 in the spout, the lower extreme of slider 20 is equipped with T type groove 21, vertical sliding connection has liftout plate 22 in the T type groove 21, the upper end of threaded rod 18 slides and runs through mould body 1 and recess and extend to in T type groove 21, the upper end of threaded rod 18 and the lower extreme fixed connection of liftout plate 22, be connected through the 9 transmissions of first drive mechanism between first ejection mechanism 6 and the second ejection mechanism 8, it needs to explain, first drive mechanism 9 includes second belt pulley 23 and third belt pulley 24, second belt pulley 23 and the coaxial fixed connection of one of them pivot 10, third belt pulley 24 and the coaxial fixed connection of axis of rotation 17, be connected through belt transmission between second belt pulley 23 and the third belt pulley 24.
When the injection molding part is ejected out, the motor 14 is started, the driving shaft of the motor 14 drives one of the rotating shafts 10 to rotate, one of the rotating shafts 10 drives one of the first belt pulleys 16 to rotate, one of the first belt pulleys 16 drives the other first belt pulley 16 to rotate through a belt, the other first belt pulley 16 drives the other rotating shaft 10 to rotate, the two rotating shafts 10 drive the two rotating discs 11 to rotate, the two rotating discs 11 drive the two deflection rods 12 to deflect, the two deflection rods 12 drive the two ejection rods 13 to reciprocate, and the two ejection rods 13 drive the two first ejection blocks 3 to pre-eject the injection molding part; meanwhile, one of the rotating shafts 10 drives the second belt pulley 23 to rotate, the second belt pulley 23 drives the third belt pulley 24 to rotate through a belt, the third belt pulley 24 drives the rotating shaft 17 to rotate, the rotating shaft 17 drives the threaded rod 18 to lift, the threaded rod 18 drives the ejector plate 22 to lift, after a period of time, the upper end of the ejector plate 22 is in contact with the inner top of the T-shaped groove 21 in an abutting mode and drives the sliding block 20 to lift, and the sliding block 20 drives the second ejection block 4 to lift, so that the injection molding part can be ejected out.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A secondary ejection structure comprises a die body (1) and is characterized in that a die groove (2) for injection molding is arranged on the upper end face of the die body (1), first ejection grooves are formed in the left side wall and the right side wall of the die groove (2), first ejection blocks (3) are connected in the two first ejection grooves in a sliding mode, a second ejection groove is formed in the inner bottom of the die groove (2), a second ejection block (4) is connected in the second ejection groove in a sliding mode, two first cavities (5) are arranged in the die body (1), the two first cavities (5) are distributed on the left side and the right side of the die groove (2), first ejection mechanisms (6) for performing primary ejection on an injection molding piece are arranged in the two first cavities (5), a second cavity (7) is arranged in the die body (1), a second mechanism (8) for performing secondary ejection on the injection molding piece is arranged in the second cavity (7), the first ejection mechanism (6) is in transmission connection with the second ejection mechanism (8) through a first transmission mechanism (9).
2. The secondary ejection structure according to claim 1, wherein the first ejection mechanism (6) comprises two rotating shafts (10) vertically and rotatably connected with the inner side wall of the first cavity (5), the upper ends of the two rotating shafts (10) are coaxially and fixedly connected with a rotating disc (11), the non-circle center positions of the upper ends of the two rotating discs (11) are rotatably connected with deflection rods (12), one ends of the two deflection rods (12) far away from the rotating disc (11) are rotatably connected with ejection rods (13), one ends of the two ejection rods (13) far away from the deflection rods (12) slidably penetrate through the mold body (1) and respectively extend into the two first ejection grooves and are fixedly connected with the first ejection blocks (3), the lower ends of the two rotating shafts (10) rotatably penetrate through the mold body (1) and extend into the second cavity (7), and a motor (14) is fixedly connected in the second cavity (7), the lower end of one of the rotating shafts (10) is coaxially and fixedly connected with a driving shaft of a motor (14), and the two rotating shafts (10) are in transmission connection through a second transmission mechanism (15).
3. The secondary ejection structure according to claim 2, wherein the second transmission mechanism (15) comprises two first belt pulleys (16), the two first belt pulleys (16) are respectively and fixedly connected with the two rotating shafts (10) coaxially, and the two first belt pulleys (16) are connected through a belt transmission.
4. The double ejection structure according to claim 1, wherein the second ejection mechanism (8) comprises a rotating shaft (17) vertically and rotatably connected with the second cavity (7), a threaded rod (18) is connected to the upper end of the rotating shaft (17) in a threaded manner, and the threaded rod (18) is in transmission connection with the second ejection block (4) through a delay mechanism (19).
5. The secondary ejection structure as claimed in claim 4, wherein the delay mechanism (19) includes a sliding groove disposed at the bottom of the second ejection groove, a sliding block (20) is slidably connected in the sliding groove, a T-shaped groove (21) is disposed at the lower end of the sliding block (20), an ejection plate (22) is vertically slidably connected in the T-shaped groove (21), the upper end of the threaded rod (18) slidably penetrates through the mold body (1) and the groove and extends into the T-shaped groove (21), and the upper end of the threaded rod (18) is fixedly connected with the lower end of the ejection plate (22).
6. The secondary ejection structure according to claim 1, wherein the first transmission mechanism (9) comprises a second belt pulley (23) and a third belt pulley (24), the second belt pulley (23) is coaxially and fixedly connected with one of the rotating shafts (10), the third belt pulley (24) is coaxially and fixedly connected with the rotating shaft (17), and the second belt pulley (23) is in belt transmission connection with the third belt pulley (24).
CN201920695275.XU 2019-05-10 2019-05-10 Secondary ejection structure Active CN209869314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920695275.XU CN209869314U (en) 2019-05-10 2019-05-10 Secondary ejection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920695275.XU CN209869314U (en) 2019-05-10 2019-05-10 Secondary ejection structure

Publications (1)

Publication Number Publication Date
CN209869314U true CN209869314U (en) 2019-12-31

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ID=68965422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920695275.XU Active CN209869314U (en) 2019-05-10 2019-05-10 Secondary ejection structure

Country Status (1)

Country Link
CN (1) CN209869314U (en)

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