CN211683316U - Material pushing mechanism of injection mold - Google Patents
Material pushing mechanism of injection mold Download PDFInfo
- Publication number
- CN211683316U CN211683316U CN201922291429.1U CN201922291429U CN211683316U CN 211683316 U CN211683316 U CN 211683316U CN 201922291429 U CN201922291429 U CN 201922291429U CN 211683316 U CN211683316 U CN 211683316U
- Authority
- CN
- China
- Prior art keywords
- ejector
- insert
- bottom plate
- plate
- product
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a material pushing mechanism of an injection mold, which comprises a bottom plate and an insert movably arranged in a movable mold cavity, a guide rod group is vertically arranged on the front wall of the bottom plate, an ejector plate is arranged on the guide rod group in a sliding way, an elastic component which ensures that the ejector plate always has the tendency of being attached to the bottom plate is arranged between the movable mould and the ejector plate, an insert thimble is arranged on the bottom plate, the insert thimble movably penetrates through the thimble plate and the movable mold and then is connected with the insert in the movable mold cavity, a product thimble is arranged on the thimble plate, the product thimble movably penetrates through the movable mold and then is movably arranged in a product ejection channel of the insert in the movable mold cavity, four push rods distributed at four corners are arranged on the rear wall of the movable mold, four L-shaped ejection teeterbands respectively hinged at four corners of the bottom plate are arranged between the ejector plate of the bottom plate, the inner ends of the four L-shaped ejection teeterbands face to the four corners of the rear wall of the ejector plate, and the outer ends of the four L-shaped ejection teeterbands correspond to the four push rods of the movable mold one by one. The utility model has the advantages of can improve product quality.
Description
Technical Field
The utility model relates to an injection molding machine technical field, concretely relates to injection mold pushing equipment.
Background
Injection molds are an important component of injection molding machines. The structure of the injection mold comprises: the injection molding die comprises a fixed die and a movable die which are arranged in a front-back opposite mode, a die cavity is formed in the front wall of the movable die opposite to the fixed die, an insert is arranged in the die cavity, when the fixed die and the movable die are assembled, the fixed die, the movable die and the insert jointly enclose a molding die cavity, and a material pushing mechanism is further arranged on the movable die and used for pushing an injection molding product in the movable die cavity out of the die cavity after the fixed die and the movable die are opened. The structure of the pushing mechanism used at present comprises: an ejector rod capable of moving back and forth in the injection molding machine is provided with an ejector plate, the ejector plate is provided with a plurality of ejector pins, the ejector pins movably penetrate through a product ejection channel of an insert in a movable mold cavity after movably penetrating through a movable mold, and when the fixed mold and the movable mold are opened, the ejector rod pushes the ejector plate and the ejector pins to move forward, so that the ejector pins push an injection molding product in the movable mold cavity out of a mold cavity. The above-mentioned pushing equipment has the disadvantages that: after the movable mold and the fixed mold are opened, the injection product in the movable mold cavity is adhered to the inner wall of the mold cavity and the insert at the same time, namely, the products of the injection product and the inner wall of the mold cavity and the friction resistance between the injection product and the insert exist, when the ejector pin pushes the injection product out of the movable mold cavity through a product ejection channel of the insert at one time, the injection product is easy to be damaged by pulling, or the injection product is easy to bulge, so that the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an injection mold pushing equipment that can improve product quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the injection mold pushing mechanism comprises a bottom plate connected to an ejector rod in an injection molding machine and an insert movably arranged in a movable mold cavity, wherein a guide rod group is vertically arranged on the front wall of the bottom plate, an ejector plate capable of moving along the guide rod group and positioned between the bottom plate and a movable mold is slidably arranged on the guide rod group, an elastic assembly is arranged between the movable mold and the ejector plate, the elastic assembly enables the ejector plate to always have the tendency of being attached to the bottom plate along the guide rod group, an insert ejector pin is arranged on the bottom plate, the insert ejector pin movably penetrates through the ejector plate and the movable mold forwards and then is connected with the insert in the movable mold cavity, a product ejector pin is arranged on the ejector plate, the product ejector pin movably penetrates through a product ejection channel of the insert in the movable mold cavity after movably penetrating through the movable mold, four push rods distributed at four corners are arranged on the rear wall of the movable mold, four L-shaped ejector raised blocks respectively hinged to, the inner ends of the four L-shaped ejection teeterboards are forwards opposite to four corners of the rear wall of the ejector pin plate, and the outer ends of the four L-shaped ejection teeterboards are in one-to-one correspondence with the four push rods of the movable mould; in the process that the bottom plate moves forwards along with the ejector rod to the outer end of the L-shaped ejector pad to be contacted with the corresponding push rod, the bottom plate can drive the insert ejector pin, the insert, the ejector plate and the product ejector pin to move forwards synchronously, the product in the movable model cavity can be pushed to move forwards relative to the movable mold when the insert moves forwards, the product is separated from the inner wall of the movable model cavity firstly, the outer ends of the four L-shaped ejector pads on the bottom plate can be pushed by the corresponding push rod to rotate towards the bottom plate side simultaneously along with the continuous forward movement of the bottom plate, the inner ends of the four L-shaped ejector pads rotate towards the ejector plate side simultaneously to be raised, the ejector plate and the product ejector pin are pushed to move forwards relative to the bottom plate and the insert, and the product on the insert is pushed away from the insert by the product.
Further, aforementioned injection mold pushing equipment, wherein: the structure of the elastic component comprises: the ejector pin plate is characterized in that a plurality of spring positioning columns are arranged on the rear wall of the movable die, springs are sleeved outside each spring positioning column respectively, two ends of each spring abut against the ejector pin plate and the rear wall of the movable die respectively, and the springs enable the ejector pin plate to always have the tendency of being attached to the bottom plate along the guide rod group.
Further, aforementioned injection mold pushing equipment, wherein: the guide rod group consists of at least two guide rods vertically arranged on the front wall of the bottom plate.
Further, aforementioned injection mold pushing equipment, wherein: the inner end of the L-shaped ejector seesaw block is provided with a first roller which is used for contacting with the ejector plate.
Further, aforementioned injection mold pushing equipment, wherein: and a second roller which is used for contacting with the push rod is arranged at the outer end of the L-shaped jacking stilt block.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: the product in the movable model cavity is pushed to move relative to the movable mold by the insert, so that the product is firstly separated from the inner wall of the movable model cavity, then the product on the insert is pushed away from the insert by the product ejector pin and is pushed out of the movable model cavity, and through two ejection processes, the pulling or jacking of the injection product when the movable model cavity is pushed out can be effectively avoided, and the product quality is greatly improved.
Drawings
Fig. 1 is the structure schematic diagram of the pushing mechanism of the injection mold of the present invention.
Fig. 2 is a schematic structural view in the right-hand direction of fig. 1.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
As shown in fig. 1 and 2, the material pushing mechanism of the injection mold comprises a bottom plate 2 connected to an ejector rod 1 of the injection molding machine and an insert 4 movably placed in a cavity of a movable mold 3, wherein a guide rod group is vertically arranged on the front wall of the bottom plate 2, the guide rod group consists of at least two guide rods 5 vertically arranged on the front wall of the bottom plate 2, an ejector pin plate 6 which can move along the guide rod group and is positioned between the bottom plate 2 and the movable mold 3 is slidably arranged on the guide rod group, an elastic assembly is arranged between the movable mold 3 and the ejector pin plate 6, the elastic assembly enables the ejector pin plate 6 to always have the tendency of being attached to the bottom plate 2 along the guide rod group, an insert thimble 7 is arranged on the bottom plate 2, the insert thimble 7 moves forwards and penetrates through the ejector pin plate 6 and the movable mold 3 to be connected with the insert 4 in the cavity of the movable mold 3, a product thimble 8 is arranged on the ejector pin plate 6, the product 8 movably penetrates through the product ejection channel of, four push rods 9 distributed at four corners are arranged on the rear wall of the movable mold 3, four L-shaped ejection teeterboards 10 which are respectively hinged at four corners of the bottom plate 2 through pin shafts 11 are arranged between the ejector plate 6 of the bottom plate 2, the inner ends 101 of the four L-shaped ejection teeterboards 10 face forward to the four corners of the rear wall of the ejector plate 6, and the outer ends 102 of the four L-shaped ejection teeterboards 10 correspond to the four push rods 9 of the movable mold 3 one by one; in the process that the bottom plate 2 moves forwards along with the top stick 1 to the outer end 102 of the L-shaped material ejecting seesaw 10 to be contacted with the corresponding push rod 9, the bottom plate 2 can drive the insert thimble 7, the insert 4, the thimble plate 6 and the product thimble 8 to synchronously move forward relative to the movable mold 3, when the insert 4 moves forward, the product in the cavity of the movable mold 3 can be pushed to move forward for a stroke relative to the movable mold 3, so that the product is separated from the inner wall of the cavity of the movable mold 3, along with the continuous forward movement of the bottom plate 2, the outer ends 102 of the four L-shaped ejector seesaw blocks 10 on the bottom plate 2 can be propped by the corresponding push rods 9 and simultaneously rotate towards the bottom plate side, so that the inner ends 101 of the four L-shaped ejector seesaw blocks 10 simultaneously rotate towards the thimble, thereby pushing the ejector plate 6 and the product ejector pin 8 to move forward relative to the base plate 2 and the insert 4 by a stroke, so that the product ejector pin 8 pushes the product on the insert 4 away from the insert 4 along the product ejection channel of the insert 4 and pushes the product out of the cavity of the movable mold 3;
in this embodiment, the structure of the elastic member includes: the rear wall of the movable mold 3 is provided with a plurality of spring positioning columns, each spring positioning column is sleeved with a spring 12, two ends of each spring 12 respectively abut against the ejector pin plate 6 and the rear wall of the movable mold 3, the ejector pin plate 6 always tends to abut against the bottom plate 2 along the guide rod group due to the springs 12, and the elastic assembly is simple in structure and convenient to install and maintain; in the present embodiment: the inner end 101 of the L-shaped ejector seesaw 10 is provided with a first roller 13 which is used for being in contact with the ejector pin plate 6, so that the service life of the device can be prolonged better; in the embodiment, the outer end 102 of the L-shaped ejector pad 10 is provided with the second roller 14 which is used for being in contact with the push rod 9, so that the service life of the equipment can be prolonged better;
the material pushing process is as follows:
the ejector rod 1 drives the bottom plate 2 to move forwards by overcoming the elasticity of the spring 12, in the process that the bottom plate 2 moves forwards until the outer end 102 of the L-shaped ejector pad 10 is contacted with the corresponding push rod 9, the bottom plate 2 drives the insert thimble 7, the insert 4, the thimble plate 6 and the product thimble 8 to move forwards synchronously relative to the movable mold 3, when the insert 4 moves forwards, the product in the cavity of the movable mold 3 is pushed to move forwards for a certain stroke relative to the movable mold 3 so that the product is separated from the inner wall of the cavity of the movable mold 3 firstly, because the insert 4 moves forwards against the whole product at the moment, the contact area between the insert 4 and the product is large, the product cannot be scratched or bulged when being pushed, along with the continuous forward movement of the bottom plate 2, the outer ends 102 of the four L-shaped ejector pads 10 on the bottom plate 2 are pushed by the corresponding push rod 9 to rotate towards the bottom plate side at the same time, so that the inner ends 101 of the, the ejector pin plate 6 and the product ejector pin 8 are pushed to move forwards for a section of stroke relative to the base plate 2 and the insert 4 and against the elasticity of the spring 12, so that the product ejector pin 8 pushes the product on the insert 4 away from the insert 4 and pushes out the cavity of the movable mold 3 along the product ejection channel of the insert 4, and the product ejector pin 8 can push the product away from the insert 4 and out the cavity of the movable mold 3 smoothly without causing pulling damage or bulge to the product due to the fact that the product only has friction resistance with the insert 4 at the moment and the friction resistance is relatively small; when a product is ejected out of the cavity of the movable mold 3, the ejector rod 1 drives the bottom plate 2, the insert ejector pin 7 and the insert 4 to move backwards and reset together, and meanwhile, the spring 12 pushes the ejector plate 6 and the product ejector pin 8 to move backwards and reset together.
The utility model has the advantages that: the product in the movable model cavity is pushed to move relative to the movable mold by the insert, so that the product is firstly separated from the inner wall of the movable model cavity, then the product on the insert is pushed away from the insert by the product ejector pin and is pushed out of the movable model cavity, and through two ejection processes, the pulling or jacking of the injection product when the movable model cavity is pushed out can be effectively avoided, and the product quality is greatly improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (6)
1. Injection mold pushing equipment, including connecting bottom plate and the activity of pushing up on the rod in the injection molding machine and placing the mold insert in the movable mould intracavity, its characterized in that: a guide rod group is vertically arranged on the front wall of the bottom plate, an ejector plate which can move along the guide rod group and is positioned between the bottom plate and the movable mold is arranged on the guide rod group in a sliding way, an elastic component is arranged between the movable mould and the ejector plate, the elastic component enables the ejector plate to always have the tendency of being attached to the bottom plate along the guide rod group, an insert thimble is arranged on the bottom plate, the insert thimble moves forwards and passes through the thimble plate and the movable mould to be connected with the insert in the movable mould cavity, a product thimble is arranged on the thimble plate, the product thimble movably penetrates through the movable mould and then movably penetrates through a product ejection channel of the insert in the cavity of the movable mould, four push rods distributed at four corners are arranged on the rear wall of the movable mold, four L-shaped ejection teeterbands which are respectively hinged at the four corners of the bottom plate are arranged between the ejector plates of the bottom plate, the inner ends of the four L-shaped ejection teeterbands forwardly face to the four corners of the rear wall of the ejector plate, and the outer ends of the four L-shaped ejection teeterbands correspond to the four push rods of the movable mold one by one; in the process that the bottom plate moves forwards along with the ejector rod to the outer end of the L-shaped ejector pad to be contacted with the corresponding push rod, the bottom plate can drive the insert ejector pin, the insert, the ejector plate and the product ejector pin to move forwards synchronously relative to the movable mold, the product in the movable mold cavity can be pushed to move forwards relative to the movable mold when the insert moves forwards, the product is separated from the inner wall of the movable mold cavity firstly, the outer ends of the four L-shaped ejector pads on the bottom plate can be pushed by the corresponding push rod to rotate towards the bottom plate side simultaneously, the inner ends of the four L-shaped ejector pads rotate towards the ejector plate side simultaneously to be raised, the ejector plate and the product ejector pin are pushed to move forwards relative to the bottom plate and the insert, and the product on the insert is pushed away from the insert by the product ejector pin and is pushed out of.
2. The injection mold pushing mechanism of claim 1, wherein: the structure of the elastic component comprises: the ejector pin plate is characterized in that a plurality of spring positioning columns are arranged on the rear wall of the movable die, springs are sleeved outside each spring positioning column respectively, two ends of each spring abut against the ejector pin plate and the rear wall of the movable die respectively, and the springs enable the ejector pin plate to always have the tendency of being attached to the bottom plate along the guide rod group.
3. The injection mold pushing mechanism of claim 1, wherein: the guide rod group consists of at least two guide rods vertically arranged on the front wall of the bottom plate.
4. An injection mould pushing mechanism as claimed in claim 1, 2 or 3, wherein: the inner end of the L-shaped ejector seesaw block is provided with a first roller which is used for contacting with the ejector plate.
5. An injection mould pushing mechanism as claimed in claim 1, 2 or 3, wherein: and a second roller which is used for contacting with the push rod is arranged at the outer end of the L-shaped jacking stilt block.
6. The injection mold pushing mechanism of claim 4, wherein: and a second roller which is used for contacting with the push rod is arranged at the outer end of the L-shaped jacking stilt block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922291429.1U CN211683316U (en) | 2019-12-19 | 2019-12-19 | Material pushing mechanism of injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922291429.1U CN211683316U (en) | 2019-12-19 | 2019-12-19 | Material pushing mechanism of injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211683316U true CN211683316U (en) | 2020-10-16 |
Family
ID=72792512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922291429.1U Active CN211683316U (en) | 2019-12-19 | 2019-12-19 | Material pushing mechanism of injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211683316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978429A (en) * | 2019-12-19 | 2020-04-10 | 江苏顺航电子科技有限公司 | Material pushing mechanism of injection mold |
-
2019
- 2019-12-19 CN CN201922291429.1U patent/CN211683316U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978429A (en) * | 2019-12-19 | 2020-04-10 | 江苏顺航电子科技有限公司 | Material pushing mechanism of injection mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211683316U (en) | Material pushing mechanism of injection mold | |
| CN107756743B (en) | Secondary demolding mechanism for fine convex columns of injection mold | |
| CN210412168U (en) | Hemispherical head mould convenient for taking materials | |
| CN110978429A (en) | Material pushing mechanism of injection mold | |
| CN203381144U (en) | Reverse mould | |
| CN201291570Y (en) | Injection mold slide block apparatus | |
| CN111703029B (en) | Linkage inclined core pulling structure and core pulling method thereof | |
| CN209552367U (en) | A kind of automobile injection mold demoulding mechanism | |
| CN210525742U (en) | External secondary ejection mechanism of mould | |
| CN210552694U (en) | Injection mold sliding block delay thimble supporting mechanism for producing medical products | |
| CN218785743U (en) | Lid injection mold behind instrument panel | |
| CN203650779U (en) | Double-ejection structure | |
| CN110281486A (en) | A kind of external secondary ejecting mechanism of mold | |
| CN206510370U (en) | The push pedal component of injection mold | |
| CN209987332U (en) | Mould ejector pin protection device | |
| CN216989545U (en) | Bending die suitable for stamping | |
| CN220146599U (en) | Hydraulic ejection structure of plastic mold | |
| CN217098565U (en) | Forming device of plastic part | |
| CN208867464U (en) | A kind of anti-sticking preceding mould mold | |
| CN215320378U (en) | Injection mold ejection mechanism | |
| CN212472228U (en) | Injection mold capable of secondary ejection | |
| CN203854127U (en) | Secondary ejection mechanism of die | |
| CN216860450U (en) | High-precision injection mold for plastic bobbin of medical injector | |
| CN220638757U (en) | Injection mold device with secondary ejection mechanism | |
| CN203818442U (en) | Feeding frame for MGP plastic package |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |