CN209050967U - A kind of cavity jacking mechanism and injection mold - Google Patents

Abstract

The utility model provides a fixed mold ejection mechanism and an injection mold, which relate to the technical field of molds. The hybrid slider core pulling mechanism includes an injection molding machine, a bottom needle plate, a fixed template, an ejection piece, an oil cylinder and a telescopic piece. The bottom needle plate and the fixed template are arranged in parallel and spaced apart, the ejector is installed on the bottom needle plate, the injection molding machine is provided with a resisting piece, the resisting piece is abutted against the bottom needle plate, and the bottom needle plate can be driven by the injection molding machine to approach the fixed plate. The formwork, the oil cylinder is fixedly installed on the fixed formwork, and is connected with the telescopic piece, the telescopic piece is connected with the bottom needle plate, and the telescopic piece can retract the oil cylinder to drive the bottom needle plate to approach the fixed formwork. Compared with the prior art, the fixed die ejection mechanism of the present invention adopts the abutting member against the bottom needle plate and the telescopic member connected with the oil cylinder, so it can utilize the dual power pairing of the injection molding machine and the oil cylinder. The bottom needle plate is pulled to drive the ejector to realize the ejection action, the control precision is high, the ejection process is stable and reliable, the structure is simple, and the processing cost is low.

Description

A fixed mold ejection mechanism and an injection mold

technical field

The utility model relates to the technical field of molds, in particular to a fixed mold ejection mechanism and an injection mold.

Background technique

When the front mold of the product has ribs, the length and width of the product are large, or there are special process requirements, the glue should be fed from the middle of the product according to the process requirements. The cost, accuracy and processing cannot meet the requirements. Therefore, the flip-chip mold is generally used now, that is, the ejector system is ejected in the front mold. However, the current flip-chip molds are powered by tie rods, which have the following disadvantages : 1. The tie rod method adopts structural connection, the power is insufficient, the reset is not in place, and the control accuracy is not high; 2, the tie rod method is used, the structure is more complicated, and the processing is more difficult.

Utility model content

The problem solved by the utility model is how to enhance the power, so as to improve the control precision, ensure the stability of the ejection movement, and can simplify the structure and reduce the processing cost.

In order to solve the above-mentioned problems, the technical scheme of the present utility model is realized like this:

In the first aspect, the utility model provides a fixed mold ejection mechanism, which includes an injection molding machine, a bottom needle plate, a fixed template, an ejector, an oil cylinder and a telescopic element. The bottom needle plate and the fixed template are arranged in parallel and spaced apart. Installed on the bottom needle plate, the ejector can extend into the fixed platen to push out the product in the fixed platen. The injection molding machine is provided with a resisting piece, the resisting piece is abutted against the bottom needle plate, and the bottom needle plate can be used for injection molding. Driven by the machine, it approaches the fixed platen, the oil cylinder is fixedly installed on the fixed platen, and is connected with the telescopic piece, the telescopic piece is connected with the bottom needle plate, and the telescopic piece can retract the oil cylinder to drive the bottom needle plate to approach the fixed platen. Compared with the prior art, the fixed die ejection mechanism of the present invention adopts the abutting member against the bottom needle plate and the telescopic member connected with the oil cylinder, so it can utilize the dual power pairing of the injection molding machine and the oil cylinder. The bottom needle plate is pulled to drive the ejector to realize the ejection action, the control precision is high, the ejection process is stable and reliable, the structure is simple, and the processing cost is low.

Further, the bottom needle board includes a board body and a top stick meson, the top stick meson is fixedly mounted on the board body by screws, and the abutting member abuts against the top stick meson. The force of the abutting piece is transmitted to the board body through the top stick meson, so as to reduce the compressive strength of the board body, prevent the board body from being crushed, and prolong the service life of the board body.

Further, the number of the top stick mesons and the resisting pieces is multiple, one of the top stick mesons is arranged in the center of the board body, and the other multiple top stick mesons are distributed in a circular array with the center of the board body as the midpoint, and each The top stick meson resists with a resisting piece. So that the resisting force of the resisting piece is evenly distributed on the whole plate body, so as to ensure the balanced force of the plate body and improve the stability of the movement of the plate body.

Further, the fixed die ejection mechanism further includes a fixing plate, the fixing plate is provided with an accommodating hole, the resisting member passes through the accommodating hole and abuts against the top stick meson, and the accommodating hole is used for accommodating the top stick meson. When resetting, the top stick meson is accommodated in the accommodating hole, so that the bottom needle plate can be fitted to the fixing plate and set, so as to realize the resetting action.

Further, the fixed die ejection mechanism also includes a square iron, one end of the square iron is fixedly connected with the fixed plate, the other end is fixedly connected with the fixed platen, and the bottom needle plate can slide relative to the square iron. The square iron is clamped between the fixed plate and the fixed plate to form a space for the movement of the bottom needle plate, so as to realize the ejection action.

Further, the telescopic piece includes a resisting part and a connecting part, the resisting part is connected with the connecting part, the connecting part is connected with the oil cylinder, the cross-sectional area of the resisting part is larger than that of the connecting part, and the connecting part passes through the bottom needle plate, The abutting portion abuts against the bottom needle plate. The abutting force between the abutting portion and the bottom needle plate is used to drive the bottom needle plate to move, so as to prevent the telescopic piece from being separated from the bottom needle plate, and the stability is strong.

Further, the bottom needle plate is provided with a first stepped hole, the first stepped hole is provided with a first stepped surface, the connecting portion passes through the first stepped hole, and the abutting portion abuts against the first stepped surface. The resisting portion is accommodated in the first stepped hole, and the first stepped hole can limit the resisting portion to further improve the stability of movement.

Further, the fixed die ejection mechanism further includes a top needle plate, the top needle plate is attached and arranged on the side of the bottom needle plate close to the fixed template, and the telescopic piece passes through the top needle plate and is connected with the bottom needle plate. The upper needle plate is fitted with the bottom needle plate, and the upper needle plate is used to fix the position of the ejector.

Further, the ejector includes an integrally formed mounting portion and an ejecting portion, the cross-sectional area of the mounting portion is larger than the cross-sectional area of the ejecting portion, the face needle plate is provided with a second stepped hole, and the second stepped hole is provided with a second stepped hole. On the stepped surface, one side of the mounting portion is abutted against the bottom needle plate, and the other side is abutted against the second stepped surface, and the ejection portion extends out of the second stepped hole. The mounting portion is accommodated in the second stepped hole, and the second stepped hole can limit the mounting portion so as to fix the relative position of the ejector and the bottom needle plate.

In the second aspect, the utility model provides an injection mold, including the above-mentioned fixed mold ejection mechanism, and the fixed mold ejection mechanism includes an injection molding machine, a bottom needle plate, a fixed template, an ejector, an oil cylinder, and a telescopic element. The needle plate and the fixed platen are arranged in parallel and spaced apart, and the ejector is installed on the bottom needle plate, and the ejector can extend into the fixed platen to eject the product in the fixed platen. The bottom needle plate is abutted, the bottom needle plate can approach the fixed platen under the driving of the injection molding machine, the oil cylinder is fixedly installed on the fixed platen, and is connected with the telescopic piece, the telescopic piece is connected with the bottom needle plate, and the telescopic piece can retract the oil cylinder to Drive the bottom needle plate close to the fixed template. The bottom needle plate can be pulled by the dual power of the injection molding machine and the oil cylinder, thereby driving the ejector to realize the ejection action, the control precision is high, the ejection process is stable and reliable, the structure is simple, and the processing cost is low.

Description of drawings

Fig. 1 is the exploded view of the fixed die ejection mechanism described in the first embodiment of the present utility model;

Fig. 2 is the structural schematic diagram before the ejection action of the stationary die ejection mechanism according to the first embodiment of the present invention begins;

3 is a schematic structural diagram of the fixed die ejection mechanism in the ejection process of the first embodiment of the present invention;

4 is a schematic structural diagram of the connection between the oil cylinder and the bottom needle plate through the telescopic piece in the fixed die ejection mechanism according to the first embodiment of the present utility model;

5 is a schematic structural diagram of the fixed mold ejection mechanism according to the first embodiment of the present invention when the fixed plate and the bottom needle plate are fitted and arranged;

6 is a schematic structural diagram of the cooperation between the ejector and the face needle plate in the fixed die ejection mechanism according to the first embodiment of the present invention;

FIG. 7 is a schematic structural diagram of the injection mold according to the second embodiment of the present invention.

Description of reference numbers:

10-injection mold; 100-fixed mold ejection mechanism; 110-injection molding machine; 111-abutment; 120-bottom needle plate; 121-plate body; 122-top stick meson; 123-first step hole; 124- 1st step surface; 130-fixed plate; 140-fixed plate; 141-accommodating hole; 142-blind hole; 150-square iron; 160-face needle plate; 161-second step hole; 162-second step surface ; 170 - ejector; 171 - installation part; 172 - ejection part; 180 - oil cylinder; 190 - telescopic part; 191 - abutting part; 192 - connecting part;

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

first embodiment

Please refer to FIG. 1 , FIG. 2 , and FIG. 3 , an embodiment of the present invention provides a fixed mold ejection mechanism 100 for ejecting an injection-molded product. It can use the dual power of the injection molding machine 110 and the oil cylinder 180 to pull the bottom needle plate 120, thereby driving the ejector 170 to realize the ejection action, with high control precision, stable and reliable ejection process, simple structure and low processing cost.

The fixed mold ejection mechanism 100 includes an injection molding machine 110 , a bottom needle plate 120 , a fixed plate 130 , a fixed plate 140 , a square iron 150 , a face needle plate 160 , an ejector 170 , an oil cylinder 180 and a telescopic member 190 . The fixed plate 140 and the fixed plate 130 are arranged in parallel and spaced apart. The square iron 150 , the bottom needle plate 120 and the face needle plate 160 are all disposed between the fixed plate 140 and the fixed plate 130 . One end of the square iron 150 is fixedly connected with the fixed plate 140, and the other end is fixedly connected with the fixed plate 130 to fix the relative position of the fixed plate 130 and the fixed plate 140 to prevent the relative displacement of the fixed plate 130 and the fixed plate 140, and the square iron 150 clamps It is held between the fixed plate 140 and the fixed plate 130 to form a space for the bottom needle plate 120 and the face needle plate 160 to move. take action. The bottom needle plate 120 and the upper needle plate 160 are arranged to fit together, and can be close to or away from the fixed plate 130 to realize the action of ejection or reset. The bottom needle plate 120 and the fixed platen 130 are parallel and spaced apart. The ejector 170 is mounted on the bottom needle plate 120 , and the ejector 170 can extend into the fixed platen 130 to push out the products in the fixed platen 130 . The upper needle plate 160 is disposed on the side of the bottom needle plate 120 close to the fixed plate 130, the ejector 170 passes through the upper needle plate 160, the upper needle plate 160 defines the position of the ejector 170, and the retractable member 190 passes through the upper needle The board 160 is connected to the bottom needle board 120 .

It is worth noting that the injection molding machine 110 is provided with a resisting member 111 , the resisting member 111 abuts against the bottom needle plate 120 , and the injection molding machine 110 can provide power to the bottom needle plate 120 through the resisting member 111 , so that the bottom needle plate 120 can Driven by the injection molding machine 110 , it approaches the fixed platen 130 , thereby driving the ejector 170 to push out the product in the fixed platen 130 . The oil cylinder 180 is fixedly mounted on the fixed plate 130 and is connected with the telescopic piece 190 , and the telescopic piece 190 can extend or retract the oil cylinder 180 . The telescopic piece 190 is connected to the bottom needle plate 120, and the oil cylinder 180 can provide power to the telescopic metal, so that the telescopic piece 190 retracts into the oil cylinder 180 to drive the bottom needle plate 120 to approach the fixed plate 130, thereby driving the ejector 170 to push the fixed plate 130 into the fixed plate 130. product ejection. It should be noted that the bottom needle plate 120 is pulled by the dual power of the injection molding machine 110 and the oil cylinder 180, thereby driving the ejector 170 to realize the ejection action, the control precision is high, the ejection process is stable and reliable, and the structure is simple, and the processing cost is high. Low.

Please refer to FIG. 4 and FIG. 5 in combination. It should be noted that the bottom needle plate 120 includes a plate body 121 and a top stick meson 122 . The top stick meson 122 is fixedly mounted on the board body 121 by screws, so as to improve the connection strength. The resisting member 111 abuts against the top stick meson 122 , and the resisting piece 111 exerts a resisting force on the board body 121 through the top stick meson 122 . The force of the abutting member 111 is transmitted to the board body 121 through the top stick meson 122 to reduce the compression strength of the board body 121 , prevent the board body 121 from being crushed, and prolong the service life of the board body 121 . Specifically, the top stick meson 122 is cylindrical, and corresponds to the shape of the resisting member 111 .

It is worth noting that the number of the top stick mesons 122 and the resisting members 111 is multiple, one of the top stick mesons 122 is arranged in the center of the board body 121 , and the other multiple top stick mesons 122 are centered on the center of the board body 121 . The dots are distributed in an annular array, and each top stick meson 122 abuts against a resisting member 111 . In order to make the resisting force of the resisting member 111 evenly distributed on the whole plate body 121 , the force of the plate body 121 is guaranteed to be balanced, and the movement stability of the plate body 121 is improved. In this embodiment, the number of the top stick mesons 122 and the resisting members 111 are both five, one of the top stick mesons 122 is arranged in the center of the board body 121 , and the other four top stick mesons 122 are centered on the center of the board body 121 . The points are distributed in a circular array. But it is not limited to this, the number of the top stick mesons 122 and the resisting members 111 can also be seven, one of the top stick mesons 122 is arranged at the center of the board body 121 , and the other six stick stick mesons 122 are located in the center of the board body 121 . The center is the midpoint and is distributed in an annular array, and the number of the top stick mesons 122 and the abutting members 111 is not specifically limited.

It is worth noting that the fixing plate 140 is provided with an accommodating hole 141 , and the resisting member 111 passes through the accommodating hole 141 and abuts against the top stick meson 122 to push the plate body 121 to move, and the accommodating hole 141 is used for accommodating Top stick meson 122. When resetting, the top stick meson 122 is accommodated in the accommodating hole 141 , so that the bottom needle plate 120 can be installed in contact with the fixing plate 140 , thereby realizing the resetting action.

The telescopic piece 190 includes a resisting part 191 and a connecting part 192 . The resisting portion 191 is connected with the connecting portion 192. In this embodiment, the resisting portion 191 and the connecting portion 192 are integrally formed to improve the connecting strength. The connecting portion 192 is connected with the oil cylinder 180 , and the connecting portion 192 can drive the abutting portion 191 to move under the action of the oil cylinder 180 . The cross-sectional area of the abutting portion 191 is larger than that of the connecting portion 192 , the connecting portion 192 passes through the bottom needle plate 120 , and the abutting portion 191 abuts against the bottom needle plate 120 . The abutting force between the abutting portion 191 and the bottom needle plate 120 is used to drive the bottom needle plate 120 to move, so as to prevent the retractable member 190 from being separated from the bottom needle plate 120, and the stability is strong.

Specifically, the bottom needle plate 120 is provided with a first stepped hole 123 , the first stepped hole 123 is provided with a first stepped surface 124 , the connecting portion 192 passes through the first stepped hole 123 , and the abutting portion 191 abuts against the first stepped surface 124 hold. The resisting portion 191 is accommodated in the first stepped hole 123 , and the first stepped hole 123 can limit the resisting portion 191 to further improve the stability of movement. In this embodiment, a blind hole 142 is formed on the side of the fixing plate 140 close to the bottom needle plate 120 . The depth of the step in the first stepped hole 123 is smaller than the thickness of the abutting portion 191 , and the abutting portion 191 abuts against the first stepped surface 124 When holding, a part of the abutting part 191 protrudes out of the first stepped hole 123, and when resetting, the part of the abutting part 191 protruding from the first stepped hole 123 protrudes into the blind hole 142, so that the abutting part 191 can be completely accommodated, so that the bottom needle plate 120 It can be attached to the fixing plate 140 and set.

In this embodiment, the number of the oil cylinder 180 and the telescopic piece 190 is two, but it is not limited to this. The number of the oil cylinder 180 and the telescopic piece 190 may also be four, and the number of the oil cylinder 180 and the telescopic piece 190 is not specific. limited.

Referring to FIG. 6 , the ejector 170 includes an integrally formed mounting portion 171 and an ejector portion 172 . The cross-sectional area of the mounting portion 171 is larger than the cross-sectional area of the ejecting portion 172. The face needle plate 160 is provided with a second stepped hole 161, and the second stepped hole 161 is provided with a second stepped surface 162. One side of the mounting portion 171 and the bottom The needle plate 120 is abutted, and the other side is abutted against the second stepped surface 162 . The ejection portion 172 extends out of the second stepped hole 161 , and the ejection portion 172 is used to eject the product in the fixed platen 130 . The mounting portion 171 is accommodated in the second stepped hole 161 , and the second stepped hole 161 can limit the mounting portion 171 , thereby fixing the relative position of the ejector 170 and the bottom needle plate 120 .

In this embodiment, the number of the ejector parts 170 is two, but not limited to this. The number of the ejector parts 170 may also be four, and the number of the ejector parts 170 is not specifically limited.

Before the mold is opened, the fixing plate 140 and the bottom needle plate 120 are attached and arranged, and the bottom needle plate 120 and the face needle plate 160 are both located on the side away from the fixed platen 130. At this time, the ejector 170 and the fixed platen 130 are arranged at intervals, waiting for the process to be carried out. Eject action. When the product needs to be ejected after the mold is opened, the injection molding machine 110 abuts the bottom needle plate 120 through the abutting member 111, thereby driving the ejector needle plate and the ejecting member 170 to move in a direction close to the fixed platen 130, and thus At the same time, the oil cylinder 180 installed on the fixed platen 130 is activated, so that the telescopic piece 190 retracts into the oil cylinder 180, and the telescopic piece 190 pulls the bottom needle plate 120 to move in a direction close to the fixed platen 130, thereby driving the ejector plate and the ejector piece 170 to move closer to the fixed platen 130. The direction of the fixed template 130 moves, and the dual powers act together, so that the ejector 170 performs the ejection action, which is stable and reliable, and has high control precision.

In the fixed die ejection mechanism 100 according to the embodiment of the present invention, the bottom needle plate 120 and the fixed platen 130 are arranged in parallel and spaced apart. In order to push out the product in the fixed platen 130, the injection molding machine 110 is provided with a resisting piece 111, the resisting piece 111 abuts against the bottom needle plate 120, and the bottom needle plate 120 can approach the fixed platen 130 under the driving of the injection molding machine 110, The oil cylinder 180 is fixedly installed on the fixed plate 130 and is connected to the telescopic piece 190 . The telescopic piece 190 is connected to the bottom needle plate 120 . Compared with the prior art, the fixed die ejection mechanism 100 of the present invention adopts the abutting member 111 abutting against the bottom needle plate 120 and the telescopic member 190 connecting with the oil cylinder 180, so the injection molding machine 110 can be used. The bottom needle plate 120 is pulled by the dual power of the oil cylinder 180, thereby driving the ejector 170 to realize the ejection action, the control precision is high, the ejection process is stable and reliable, the structure is simple, and the processing cost is low.

Second Embodiment

Referring to FIG. 7 , the present invention provides an injection mold 10 for producing plastic products. The injection mold 10 includes a stationary mold ejection mechanism 100 and a movable mold plate 200 . The basic structure, principle and technical effect of the fixed die ejection mechanism 100 are the same as those in the first embodiment. For brief description, for the parts not mentioned in this embodiment, reference may be made to the corresponding content in the first embodiment.

In this embodiment, the position of the movable template 200 corresponds to the position of the fixed template 130 , and the movable template 200 can be close to or away from the fixed template 130 to realize the action of closing or opening the mold.

The beneficial effects of the injection mold 10 according to the embodiment of the present invention are the same as those of the first embodiment, and are not repeated here.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (10)

1. A fixed mold ejection mechanism, characterized in that it comprises an injection molding machine (110), a bottom needle plate (120), a fixed template (130), an ejector (170), an oil cylinder (180) and a telescopic element (190) ), the bottom needle plate (120) and the fixed platen (130) are arranged in parallel and spaced apart, the ejector (170) is mounted on the bottom needle plate (120), and the ejector (170) The fixed plate (130) can be inserted into the fixed plate (130) to push out the product in the fixed plate (130). The injection molding machine (110) is provided with a resist (111), and the resist (111) Abutting against the bottom needle plate (120), the bottom needle plate (120) can approach the fixed platen (130) under the driving of the injection molding machine (110), and the oil cylinder (180) is fixedly installed on on the fixed plate (130) and connected with the telescopic piece (190), the telescopic piece (190) is connected with the bottom needle plate (120), and the telescopic piece (190) can retract the An oil cylinder (180) drives the bottom needle plate (120) to approach the fixed plate (130). 2. The fixed die ejection mechanism according to claim 1, wherein the bottom needle plate (120) comprises a plate body (121) and a top stick meson (122), and the top stick meson (122) passes through The screw is fixedly mounted on the board body (121), and the abutting member (111) is abutted against the top stick meson (122). 3. The fixed die ejection mechanism according to claim 2, wherein the number of the ejector stick meson (122) and the resisting member (111) is multiple, and one of the ejector stick meson (122) is arranged at the center of the board body (121), and a plurality of the top stick mesons (122) are distributed in a circular array with the center of the board body (121) as the midpoint. The muon (122) resists against one of the resisting pieces (111). 4. The fixed die ejection mechanism according to claim 2, wherein the fixed die ejection mechanism further comprises a fixing plate (140), and the fixing plate (140) is provided with an accommodating hole (141), The abutting member (111) passes through the accommodating hole (141) and abuts against the top stick meson (122), and the accommodating hole (141) is used for accommodating the top stick meson (141). 122). 5. The fixed die ejection mechanism according to claim 4, wherein the fixed die ejection mechanism further comprises a square iron (150), one end of the square iron (150) being connected to the fixing plate (140) ) is fixedly connected, the other end is fixedly connected with the fixed plate (130), and the bottom needle plate (120) can slide relative to the square iron (150). 6. The fixed die ejection mechanism according to claim 1, wherein the telescopic element (190) comprises a resisting part (191) and a connecting part (192), and the resisting part (191) is connected to the The connecting portion (192) is connected, the connecting portion (192) is connected with the oil cylinder (180), and the cross-sectional area of the abutting portion (191) is larger than the cross-sectional area of the connecting portion (192), so The connecting portion (192) passes through the bottom needle plate (120), and the abutting portion (191) abuts against the bottom needle plate (120). 7 . The fixed die ejection mechanism according to claim 6 , wherein the bottom needle plate ( 120 ) is provided with a first stepped hole ( 123 ), and the first stepped hole ( 123 ) is provided with a first stepped hole ( 123 ). 8 . A stepped surface (124), the connecting portion (192) passes through the first stepped hole (123), and the abutting portion (191) abuts against the first stepped surface (124). 8 . The fixed mold ejection mechanism according to claim 1 , wherein the fixed mold ejection mechanism further comprises a face needle plate (160), and the face needle plate (160) is fitted and arranged on the bottom. 9 . The needle plate (120) is close to one side of the fixed plate (130), and the telescopic element (190) passes through the upper needle plate (160) and is connected with the bottom needle plate (120). 9. The fixed die ejection mechanism according to claim 8, wherein the ejector (170) comprises an integrally formed mounting portion (171) and an ejecting portion (172), and the mounting portion (171) ) is larger than the cross-sectional area of the ejection portion (172), the face needle plate (160) is provided with a second stepped hole (161), and the second stepped hole (161) is provided with a second stepped hole (161). A stepped surface (162), one side of the mounting portion (171) abuts against the bottom needle plate (120), and the other side abuts against the second stepped surface (162), the ejection portion (162) 172) Extend the second stepped hole (161). 10. An injection mold, characterized in that it comprises the fixed mold ejection mechanism according to any one of claims 1 to 9.