CN215320370U - Thimble mechanism and injection molding machine - Google Patents
Thimble mechanism and injection molding machine Download PDFInfo
- Publication number
- CN215320370U CN215320370U CN202120472533.5U CN202120472533U CN215320370U CN 215320370 U CN215320370 U CN 215320370U CN 202120472533 U CN202120472533 U CN 202120472533U CN 215320370 U CN215320370 U CN 215320370U
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- ejector pin
- rod
- guide
- thimble
- plate
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Abstract
The utility model discloses an ejector pin mechanism which is used for being installed on an injection molding machine and comprises an ejector pin plate and an ejector pin rod, wherein the ejector pin plate is magnetically connected with the ejector pin plate, the ejector pin plate can drive the ejector pin rod to move towards an ejection direction, and one end of the ejector pin rod, which is back to the ejection direction, is abutted against the ejector pin plate. The utility model also discloses an injection molding machine, which comprises a movable template and the ejector pin mechanism, wherein the ejector pin mechanism is arranged on the movable template. The ejector pin rod is not easy to damage, can be conveniently disassembled and assembled, and is favorable for quickly replacing the ejector pin rod.
Description
Technical Field
The utility model relates to an ejection part of an injection molding machine, in particular to an ejector pin mechanism and an injection molding machine.
Background
When an injection molding machine on the existing market produces products, an ejector pin mechanism is needed to eject plastic products in a mold. The thimble rod is connected with the thimble plate and the thimble piston rod by screw threads. Because the ejector pin rod and the plastic product impact constantly when ejecting the plastic product, the thread damage of junction is caused very easily and is stung for a long time, when different ejector pin rods (different in length) need to be changed to different moulds, dismantle very difficultly when changing the ejector pin rod, be unfavorable for quick replacement ejector pin rod.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide an ejector pin mechanism, wherein an ejector pin rod is not easy to damage, the ejector pin rod can be conveniently disassembled and assembled, and the ejector pin rod is conveniently and quickly replaced.
The second purpose of the utility model is to provide an injection molding machine which has all the advantages of the thimble mechanism.
One of the purposes of the utility model is realized by adopting the following technical scheme:
the utility model provides an ejector pin mechanism for install on the injection molding machine, includes thimble board and thimble rod, thimble rod and thimble board magnetism are connected, the thimble board can drive the thimble rod and move towards an ejecting direction, the thimble rod dorsad the one end of ejecting direction with the thimble board butt.
Furthermore, a fixing groove is formed in the ejector plate, an opening of the fixing groove faces the ejection direction, and one end of the ejector rod is inserted into the fixing groove and matched with the fixing groove.
Further, the thimble board passes through the connecting rod to be connected with the thimble rod, be provided with on the connecting rod fixed recess.
Furthermore, a magnetic part is arranged on the ejector pin rod and/or the ejector pin plate, and the ejector pin rod and the ejector pin plate are magnetically connected through the magnetic part.
Further, the magnetic member is disposed in the fixing groove.
Further, still include drive arrangement, drive arrangement is provided with thimble piston rod, the thimble board with thimble piston rod is connected.
The ejector pin plate is provided with a guide through hole, the guide rod penetrates through the guide through hole, and the ejector pin plate can move along the extension direction of the guide rod; the ejector pin plate is characterized by further comprising a guide seat, a guide rod or a guide through hole is formed in the guide seat, the ejector pin plate is correspondingly provided with the guide through hole or the guide rod, the guide rod is matched with the guide through hole and is inserted into the guide through hole in a sliding mode, and the guide rod is parallel to the ejection direction.
Furthermore, the number of the ejector pins is at least two, at least one of the ejector pins is located in the center of the ejector plate, and at least one of the ejector pins is located at the edge of the ejector plate.
Further, the ejector pins are parallel to each other.
The second purpose of the utility model is realized by adopting the following technical scheme:
the injection molding machine comprises a movable template and an ejector pin mechanism, wherein the ejector pin mechanism is arranged on the movable template.
Compared with the prior art, the utility model has the beneficial effects that:
the ejector pin rod is magnetically connected with the ejector pin plate, and when the ejector pin rod is replaced, the ejector pin rod can be replaced quickly only by separating the ejector pin rod from the ejector pin plate. The thimble rod can avoid the phenomenon that the thread is seized due to damage caused by multiple impacts because of the threadless connection. In addition, the thimble rod is not in threaded connection, and the production and processing are simpler, and the processing cost is favorably reduced.
Drawings
FIG. 1 is a schematic structural diagram of a thimble mechanism according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of an injection molding machine according to an embodiment of the present invention;
in the figure: 10. an ejector plate; 20. a thimble rod; 201. a central ejector pin rod; 202. an edge thimble rod; 30. a magnetic member; 40. a drive device; 50. moving the template; 60. fixing a template; 70. a thimble piston rod; 80. a connecting rod; 90. a guide rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1-2, embodiments of the present invention provide an ejector pin mechanism for installation on an injection molding machine that requires replacement of a different ejector pin 20 (different lengths) for different molds due to the ejector pin 20 that is in direct contact with the plastic article. Therefore, the mounting of the thimble rod 20 is achieved by:
the ejector pin mechanism comprises an ejector pin plate 10 and an ejector pin plate 20, wherein the ejector pin plate 20 is magnetically connected with the ejector pin plate 10, the ejector pin plate 10 can drive the ejector pin plate 20 to move towards an ejection direction, and one end of the ejector pin plate 20, which is back to the ejection direction, is abutted against the ejector pin plate 10.
On the basis of the structure, the ejector pin plate 10 can drive the ejector pin rod 20 to do linear motion towards an ejection direction so as to realize the function of ejecting the molded plastic product, and one end of the ejector pin rod 20, which is back to the ejection direction, is abutted against the ejector pin plate 10, so that the ejector pin rod 20 can be effectively supported. And thimble rod 20 and thimble board 10 magnetism are connected, compare with the mode that adopts threaded connection among the prior art, can avoid the screw thread because of the damage that many times striking arouses stings dead phenomenon, and thimble rod 20's dismouting is more convenient, is favorable to quick replacement thimble rod 20.
Specifically, the ejector pin 20 and/or the ejector plate 10 is provided with a magnetic member 30, and the ejector pin 20 and the ejector plate 10 are magnetically connected by the magnetic member 30.
As an embodiment, a magnetic member 30 may be provided on one end of the ejector pin 20 so that the ejector pin 20 can be mounted on the ejector plate 10 via the magnetic member 30.
In the present embodiment, the magnetic member 30 is fixed on one side of the ejector plate 10, and one end of the ejector pin 20 is fixed with the magnetic member 30 by magnetic attraction, thereby fixing the ejector pin 20 to the ejector plate 10.
As a preferred embodiment in this embodiment, a fixing groove is provided on one side of the ejector plate 10, an opening of the fixing groove faces the ejection direction, one end of the ejector rod 20 is inserted into the fixing groove and is adapted to the fixing groove, that is, the ejector plate 10 is disposed in the fixing groove through the magnetic member 30, so that one end of the ejector rod 20 is placed into the fixing groove, the fixing groove is positioned in cooperation with one end of the ejector rod 20, the fixing groove can fix the ejector rod 20 on the ejector plate 10, and the ejector rod 20 can be attracted by the magnetic member 30, thereby effectively fixing the ejector rod 20 on the ejector plate 10.
In the present embodiment, the fixing groove is formed on one side of the ejector plate 10 even if the ejector pin 20 is fixed to one side of the ejector plate 10. The magnetic member 30 is disposed at the bottom of the fixing groove, and the magnetic member 30 can be fixed in the fixing groove, so that the ejector pin rod 20 penetrates into the fixing groove, the fixing groove is effectively matched and positioned with one end of the ejector pin rod 20, and the connection strength between the ejector pin rod 20 and the ejector plate 10 is improved.
In the present embodiment, at least two of the ejector pins 20 are provided, at least one of which is located at the center of the ejector plate 10 and at least one of which is located at the edge of the ejector plate 10. Specifically, the ejector pin rod 20 of the present embodiment includes a center ejector pin rod 201 and an edge ejector pin rod 202, the center ejector pin rod 201 is located at the center of the ejector plate 10, and the edge ejector pin rod 202 is located at the edge of the ejector plate 10, so that the contact area between the ejector pin rod 20 and the plastic product can be increased, which is beneficial to improving the ejection efficiency of the plastic product.
In a preferred embodiment, the two ejector pins 20 are parallel to each other, that is, the central ejector pin 201 and the edge ejector pin 202 are parallel to each other, so that the central ejector pin 201 can be in effective contact with the center of the plastic product, and the edge ejector pin 202 can be in effective contact with the edge of the plastic product, which is beneficial to improving the ejection efficiency of the plastic product.
In a preferred embodiment, the ejector pin mechanism further includes a driving device 40, the driving device 40 is provided with an ejector pin piston rod 70, and the ejector pin plate 10 is provided on the ejector pin piston rod 70. In this way, the driving device 40 drives the ejector piston rod 70 to eject, and the ejector piston rod 70 provides the power for the ejector plate 10 to perform the linear motion, so that the ejector plate 10 can drive the ejector rod 20 to perform the linear motion, and the ejector rod 20 can realize the function of ejecting the molded plastic product.
In the present embodiment, the driving device 40 is preferably a cylinder.
In this embodiment, the ejector plate 10 is provided with a central hole, and the ejector piston rod 70 is inserted through the central hole and connected to the ejector plate 10, so that the driving device 40 can drive the ejector plate 10 to perform a linear motion.
As a preferred embodiment, the ejector plate 10 is connected to the ejector pin 20 by a connecting rod 80, specifically, the ejector plate 10 is connected to the central ejector pin 201 by a connecting rod 80, and a fixing groove is also provided on the connecting rod 80. More specifically, the fixing groove is formed at one end of the connecting rod 80, a via hole is formed at the other end of the connecting rod 80, and the thimble piston rod 70 is inserted through the central hole and the via hole, so that the connecting rod 80 is sleeved on the thimble piston rod 70.
In this embodiment, the thimble mechanism further includes a guide rod 90, a guide through hole is further formed in the thimble plate 10, the guide rod 90 penetrates through the guide through hole, the thimble plate 10 can move along the extending direction of the guide rod 90, and the driving device 40 can drive the thimble plate 10 to move along the extending direction of the guide rod 90. The ejector pin mechanism further comprises a guide seat, a guide rod 90 or a guide through hole is arranged on the guide seat, a guide through hole or a guide rod 90 is correspondingly arranged on the ejector plate 10, the guide rod 90 is matched with the guide through hole and is inserted into the guide through hole in a sliding mode, and the guide rod 90 is parallel to the ejection direction. The guide seat is fixed on an injection molding machine, and the ejector plate 10 is in sliding contact with the guide rod 90 to play a better guiding role.
Specifically, the guide through-hole is located at the edge of the ejector plate 10, with the guide bar 90 located on the lower side of the central ejector pin 201.
In a preferred embodiment, the magnetic member 30 is a strong magnet or an electromagnet, and the ejector pin 20 is subjected to a large magnetic attraction force, which is advantageous in improving the strength of the connection between the ejector pin 20 and the ejector plate 10.
In addition, the embodiment of the utility model also provides an injection molding machine, and the injection molding machine needs an ejector pin mechanism to eject the molded plastic product when producing the plastic product.
Specifically, the injection molding machine according to the embodiment of the present invention includes a movable mold plate 50 and the above-mentioned ejector pin mechanism, and the ejector pin mechanism is installed on one side of the movable mold plate 50.
Wherein the guide holder is fixed to the movable platen 50 so that the guide bar 90 is effectively fixed to the movable platen 50.
More specifically, the injection molding machine further includes a stationary platen 60 that cooperates with the movable platen 50.
In summary, when the thimble rod 20 is replaced, the thimble rod 20 can be replaced quickly by directly pulling out the thimble rod 20 from the fixing groove. The thimble rod 20 is connected without screw thread, so that the phenomenon that the screw thread is damaged and seized due to multiple impacts can be avoided. In addition, the thimble rod 20 is in thread-free connection, and the production and processing are simpler, thereby being beneficial to reducing the processing cost.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. The utility model provides an ejector pin mechanism for install on the injection molding machine, including the thimble board, its characterized in that: still include the thimble bar, the thimble bar is connected with thimble board magnetism, the thimble board can drive the thimble bar and move towards an ejecting direction, the thimble bar dorsad the one end of ejecting direction with the thimble board butt.
2. The ejector pin mechanism of claim 1, wherein: the ejector pin plate is provided with a fixing groove, an opening of the fixing groove faces the ejection direction, and one end of the ejector pin rod is inserted in the fixing groove and matched with the fixing groove.
3. The ejector pin mechanism of claim 2, wherein: the thimble board passes through the connecting rod to be connected with the thimble rod, be provided with on the connecting rod fixed recess.
4. A thimble mechanism according to claim 2 or 3, further comprising: the ejector pin rod and/or the ejector pin plate are/is provided with a magnetic part, and the ejector pin rod and the ejector pin plate are magnetically connected through the magnetic part.
5. The ejector pin mechanism of claim 4, wherein: the magnetic part is arranged in the fixing groove.
6. The ejector pin mechanism of claim 1, wherein: the ejector pin mechanism is characterized by further comprising a driving device, wherein the driving device is provided with an ejector pin piston rod, and the ejector pin plate is connected with the ejector pin piston rod.
7. The ejector pin mechanism of claim 1, wherein: the ejector pin plate is provided with a guide through hole, the guide rod penetrates through the guide through hole, and the ejector pin plate can move along the extension direction of the guide rod; the ejector pin plate is characterized by further comprising a guide seat, a guide rod or a guide through hole is formed in the guide seat, the ejector pin plate is correspondingly provided with the guide through hole or the guide rod, the guide rod is matched with the guide through hole and is inserted into the guide through hole in a sliding mode, and the guide rod is parallel to the ejection direction.
8. The ejector pin mechanism of claim 1, wherein: the ejector pin rods are at least two, at least one ejector pin rod is located in the center of the ejector pin plate, and at least one ejector pin rod is located on the edge of the ejector pin plate.
9. The ejector pin mechanism of claim 8, wherein: the ejector pin rods are parallel to each other.
10. An injection molding machine, characterized in that: comprising a moving platen and an ejector pin mechanism according to any of claims 1 to 9, said ejector pin mechanism being mounted on the moving platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472533.5U CN215320370U (en) | 2021-03-04 | 2021-03-04 | Thimble mechanism and injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472533.5U CN215320370U (en) | 2021-03-04 | 2021-03-04 | Thimble mechanism and injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215320370U true CN215320370U (en) | 2021-12-28 |
Family
ID=79582977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120472533.5U Active CN215320370U (en) | 2021-03-04 | 2021-03-04 | Thimble mechanism and injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215320370U (en) |
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2021
- 2021-03-04 CN CN202120472533.5U patent/CN215320370U/en active Active
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