CN219360221U - A fixed knot constructs that is used for pull rod and piston of two trigger - Google Patents
A fixed knot constructs that is used for pull rod and piston of two trigger Download PDFInfo
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- CN219360221U CN219360221U CN202320321908.7U CN202320321908U CN219360221U CN 219360221 U CN219360221 U CN 219360221U CN 202320321908 U CN202320321908 U CN 202320321908U CN 219360221 U CN219360221 U CN 219360221U
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Abstract
A fixing structure of a pull rod and a piston for a two-plate machine, comprising: the fixed die plate is provided with a cylinder body at the end part far away from the movable die plate arranged outside; the cylinder cover is connected with the cylinder body through bolts and is provided with a piston cavity, the mode locking piston is positioned in the piston cavity, and the periphery of the mode locking piston is movably abutted against the inner wall of the cylinder body; the clamping ring assembly is arranged in the mold locking piston, and a plurality of annular protruding parts are uniformly arranged on the inner wall of the clamping ring assembly; the draw bar is close to one end of the fixed die plate and is uniformly provided with an annular groove, the draw bar penetrates through the piston cavity, the die locking piston and the holding ring assembly, and a plurality of annular grooves are connected with a plurality of annular protruding portions in a clamping mode. The clamping mode of the annular groove and the annular protruding portion is used for fixing the pull rod, so that the fatigue fracture phenomenon caused by the trend of the pull rod moving along the axial direction in the die locking process can be reduced, the service life of the pull rod is prolonged, the stability of the working process of the two-plate injection molding machine is indirectly ensured, and the working efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of injection molding machines, and particularly relates to a fixing structure of a pull rod and a piston for two plates.
Background
With the development of the plastic industry, the two-plate injection molding machine is widely applied due to the simple structure and low cost, and a mold locking mechanism used by the two-plate injection molding machine generally comprises a movable mold plate, a fixed mold plate and a pull rod connected between the movable mold plate and the fixed mold plate and used for moving the movable mold plate on the fixed mold plate.
However, the existing two-plate injection molding machine has the following problems: 1. the volume of the pressurizing oil cylinder is overlarge, and the pressurizing oil cylinder is arranged on the fixed template, so that the space required by the whole two-plate injection molding machine is increased; 2. as shown in FIG. 5, the pull rod is screwed and assembled on the fixed die plate in a threaded manner, and in the die locking process, the pull rod has a trend of moving along the axial direction, and because the pull rod adopts a threaded connection manner, in the die locking motion in the past for a long time, the thread is easy to fatigue fracture, so that the service life of the pull rod is reduced.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art, and provides a fixing structure of a pull rod and a piston, which is used for a two-plate machine, reduces the use space and ensures that the pull rod cannot be broken by fatigue.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a fixed knot that is used for pull rod and piston of two trigger constructs, includes:
the fixed die plate is provided with a cylinder body at the end part far away from the movable die plate arranged outside;
the cylinder cover is connected with the cylinder body through bolts and is provided with a piston cavity, the mode locking piston is positioned in the piston cavity, and the periphery of the mode locking piston is movably abutted against the inner wall of the cylinder body;
the clamping ring assembly is arranged in the mold locking piston, and a plurality of annular protruding parts are uniformly arranged on the inner wall of the clamping ring assembly;
the draw bar is close to one end of the fixed die plate and is uniformly provided with an annular groove, the draw bar penetrates through the piston cavity, the die locking piston and the holding ring assembly, and a plurality of annular grooves are connected with a plurality of annular protruding portions in a clamping mode.
In the above-mentioned fixing structure for a pull rod and a piston of a two-plate machine, a groove is formed between two adjacent annular protruding portions, a bump is formed between two adjacent annular grooves, and the bump is clamped with the groove.
In the above-mentioned fixed knot constructs for pull rod and piston of two trigger, the embracing ring subassembly has two halves embraces the ring, two the half embraces the ring and passes through the bolt and link to each other.
In the above-mentioned fixed knot constructs for pull rod and piston of two trigger, the mode locking piston has cock body and cock cover, set up the spacing groove in the cock body, hold the ring subassembly setting in the spacing inslot, the cock cover sets up in the notch department of spacing groove, the cock body, be located the cock body the ring subassembly with the cock cover passes through the bolt and links to each other.
In the fixing structure of the pull rod and the piston for the two-plate machine, the annular groove far away from one side of the plug body and the outer wall of the pull rod are provided with the clamping blocks, the plug cover is provided with the clamping grooves, and the clamping grooves are abutted to the clamping blocks.
In the above-mentioned fixing structure for the pull rod and the piston of the two-plate machine, a sealing ring is disposed at the periphery of the plug body.
In the fixing structure of the pull rod and the piston for the two-plate machine, the mode locking piston divides the piston cavity into the first oil cavity and the second oil cavity, the cylinder body is provided with the first oil inlet and outlet hole, the cylinder cover is provided with the second oil inlet and outlet hole, the first oil cavity is communicated with the first oil inlet and outlet hole, and the second oil cavity is communicated with the second oil inlet and outlet hole.
In the fixing structure of the pull rod and the piston for the two-plate machine, the connecting part of the cylinder body and the pull rod is provided with the first sealing element, and the connecting part of the cylinder cover and the pull rod is provided with the second sealing element.
Compared with the prior art, the utility model has at least the following beneficial effects:
1. the cylinder body of the pressurizing cylinder is arranged on the fixed die plate, and the pressurizing cylinder is formed by matching the cylinder body with the die locking piston, the cylinder cover, the holding ring assembly and the pull rod, so that the space required by the whole two-plate injection molding machine is reduced, and the subsequent overhaul and disassembly of the pressurizing cylinder are also facilitated;
2. the clamping mode of the annular groove and the annular protruding portion is used for fixing the pull rod, so that the fatigue fracture phenomenon caused by the trend of the pull rod moving along the axial direction in the die locking process can be reduced, the service life of the pull rod is prolonged, the stability of the working process of the two-plate injection molding machine is indirectly ensured, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of a structure of a pressurizing fixing structure of a two-plate machine;
FIG. 2 is a cross-sectional view of the booster fixing structure of the present two-plate machine;
FIG. 3 is a schematic diagram of the structure of the draw bar and the mold locking piston;
FIG. 4 is a schematic structural view of a tie rod and band assembly;
fig. 5 is a schematic view of a threaded construction of the tie rod.
In the drawing the view of the figure,
1. a stationary mold plate; 100. a cylinder; 101. a first oil inlet and outlet hole; 102. a first seal;
2. a mode locking piston; 200. a plug body; 201. a plug cover; 202. a limit groove; 203. a clamping groove; 204. a seal ring;
3. a cylinder cover; 300. a second oil inlet/outlet hole; 301. a second seal;
4. a clasping assembly; 400. an annular protruding portion; 401. a groove; 402. a half embracing ring;
5. a pull rod; 500. an annular groove; 501. a bump; 502. a clamping block;
6. a first oil chamber;
7. and a second oil chamber.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 to 4, the fixing structure of a pull rod and a piston for a two-plate machine comprises: a fixed template 1, wherein a cylinder body 100 is formed at the end part of the fixed template 1, which is far away from the movable template arranged outside; the cylinder cover 3 is connected with the cylinder body 100 through bolts and is provided with a piston cavity, the mode locking piston 2 is positioned in the piston cavity, and the periphery of the mode locking piston 2 is movably abutted against the inner wall of the cylinder body 100; the embracing ring assembly 4 is arranged in the mold locking piston 2, and a plurality of annular protruding parts 400 are uniformly arranged on the inner wall of the embracing ring assembly 4; the pull rod 5, the pull rod 5 is close to the even annular groove 500 that is provided with of one end of fixed die plate 1, and the pull rod 5 alternates piston chamber, mode locking piston 2 and embraces ring assembly 4, and a plurality of annular grooves 500 and a plurality of annular bellying 400 joint.
The pull rod 5 is inserted into the cylinder body 100, the mold locking piston 2, the holding ring assembly 4 and the cylinder cover 3, and the annular groove 500 at the end part of the pull rod 5, which is close to the fixed die plate 1, is clamped with the annular convex part 400 on the inner wall of the holding ring assembly 4, so that a pressurizing cylinder is formed, when the pull rod moves axially, the holding ring assembly 4 and the mold locking piston 2 can be driven to move in a piston cavity, so that the mold closing has the pressurizing effect, and the pull rod 5 can be used as a piston rod in the application, so that the whole structure of the two-plate injection molding machine can be optimized, the space occupied by the two-plate injection molding machine is saved, and the follow-up maintenance and disassembly of the pressurizing cylinder are convenient.
It should be noted that, the four ends of the movable mold plate, which are far away from the outside, of the fixed mold plate 1 are all formed with the cylinder body 100, so that the whole fixed mold plate 1 is provided with four pressurizing cylinders, and the four pressurizing cylinders which are uniformly arranged can ensure the stable pressurizing and mold locking of the mold.
A groove 401 is formed between two adjacent annular convex parts 400, a convex block 501 is formed between two adjacent annular grooves 500, and the convex block 501 is clamped with the groove 401.
The annular groove 500 on the pull rod 5 is clamped with the annular bulge on the inner part of the holding ring assembly 4, and meanwhile, the convex blocks 501 are formed between two adjacent annular grooves 500 and the grooves 401 are also clamped with two adjacent annular convex parts 400, so that the fixing effect is improved, and the risk of fatigue fracture of the pull rod 5 can be reduced when the pull rod 5 moves along the axial direction in the die locking process.
The hoop assembly 4 has two half hoops 402, and the two half hoops 402 are connected by bolts.
Threaded holes are formed in the annular walls of the two half holding rings 402, so that the two half holding rings 402 can be screwed into the two threaded holes through bolts, and the pull rod 5 is clamped together by the two half holding rings 402, so that the pull rod 5 is convenient to assemble.
The mode locking piston 2 is provided with a plug body 200 and a plug cover 201, a limit groove 202 is formed in the plug body 200, the holding ring assembly 4 is arranged in the limit groove 202, the plug cover 201 is arranged at the notch of the limit groove 202, and the plug body 200, the annular assembly positioned in the plug body 200 and the plug cover 201 are connected through bolts.
After the pull rod 5 is clamped with the embracing ring assembly 4, the embracing ring assembly 4 is arranged in the limit groove 202 of the plug body 200, and the subsequent embracing ring assembly 4 is prevented from shaking.
The annular groove 500 at the side far away from the plug body 200 and the outer wall of the pull rod 5 are provided with a clamping block 502, the plug cover 201 is provided with a clamping groove 203, and the clamping groove 203 is abutted against the clamping block 502.
Further, after the clamping groove 203 and the clamping block 502 are positioned, the plug cover 201 and the plug body 200 clamp the clasping assembly 4 through bolts, so that risks of breakage and the like of the pull rod 5 caused by loosening of the clasping assembly 4 are prevented.
A seal ring 204 is provided at the periphery of the plug body 200.
A plurality of sealing rings 204 are arranged on the annular outer wall of the plug body 200, the sealing rings 204 are made of rubber materials, and the sealing rings 204 can prevent oil in the piston cavity from flowing out from a gap between the plug body 200 and the cylinder body 100, so that the tightness of a living body is improved.
The mode locking piston 2 divides a piston cavity into a first oil cavity 6 and a second oil cavity 7, a first oil inlet and outlet hole 101 is arranged on the cylinder body 100, a second oil inlet and outlet hole 300 is arranged on the cylinder cover 3, the first oil cavity 6 is communicated with the first oil inlet and outlet hole 101, and the second oil cavity 7 is communicated with the second oil inlet and outlet hole 300
The first oil inlet and outlet hole 101 and the second oil inlet and outlet hole 300 are connected with external equipment, when the first oil inlet and outlet hole 101 is used for oil feeding, when the second oil inlet and outlet hole 300 is used for oil discharging, the oil pressure in the first oil cavity 6 is larger than the oil pressure in the second oil cavity 7, the mold locking piston 2 moves rightwards and far away from the moving die plate direction, mold opening of a subsequent mold is achieved, when the second oil inlet and outlet hole 300 is used for oil feeding, the oil pressure in the second oil cavity 7 is larger than the oil pressure in the first oil cavity 6 when the first oil inlet and outlet hole 101 is used for oil discharging, the mold locking piston 2 moves leftwards and near the moving die plate direction, a mold locking state is achieved, and then the pressurizing oil cylinder plays a role in pressurizing.
The connection of the cylinder body 100 and the pull rod 5 is provided with a first sealing member 102, and the connection of the cylinder cover 3 and the pull rod 5 is provided with a second sealing member 301.
The cylinder body 100 is provided with a through hole, the through hole is provided with a first sealing element 102, the cylinder cover 3 is also provided with a through hole, the through hole is provided with a second sealing element 301, the first sealing element 102 and the second sealing element 301 are connected with the pull rod 5, so that the oil in the whole piston cavity can not flow out from the connection part of the cylinder body 100 and the pull rod 5, and the oil can not flow out from the connection part of the cylinder cover 3 and the pull rod 5, thereby ensuring the tightness of the whole piston cylinder.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (8)
1. A fixed structure of a pull rod and a piston for a two-plate machine, comprising:
the fixed die plate is provided with a cylinder body at the end part far away from the movable die plate arranged outside;
the cylinder cover is connected with the cylinder body through bolts and is provided with a piston cavity, the mode locking piston is positioned in the piston cavity, and the periphery of the mode locking piston is movably abutted against the inner wall of the cylinder body;
the clamping ring assembly is arranged in the mold locking piston, and a plurality of annular protruding parts are uniformly arranged on the inner wall of the clamping ring assembly;
the draw bar is close to one end of the fixed die plate and is uniformly provided with an annular groove, the draw bar penetrates through the piston cavity, the die locking piston and the holding ring assembly, and a plurality of annular grooves are connected with a plurality of annular protruding portions in a clamping mode.
2. The structure according to claim 1, wherein a groove is formed between two adjacent annular protrusions, a projection is formed between two adjacent annular grooves, and the projection is engaged with the groove.
3. A pull rod and piston fixing structure for a two-plate machine according to claim 2, wherein the clasping assembly has two halves which are connected by bolts.
4. The structure for fixing the pull rod and the piston of the two-plate machine according to claim 1, wherein the mold locking piston is provided with a plug body and a plug cover, a limit groove is formed in the plug body, the holding ring assembly is arranged in the limit groove, the plug cover is arranged at a notch of the limit groove, and the plug body, the holding ring assembly positioned in the plug body and the plug cover are connected through bolts.
5. The structure according to claim 4, wherein a clamping block is formed between the annular groove on one side far away from the plug body and the outer wall of the pull rod, and a clamping groove is formed on the plug cover, and the clamping groove abuts against the clamping block.
6. The structure for fixing a pull rod and a piston for a two-plate machine according to claim 4, wherein a sealing ring is provided at the periphery of the plug body.
7. The structure for fixing a pull rod and a piston of a two-plate machine according to claim 1, wherein the mode-locking piston divides the piston cavity into a first oil cavity and a second oil cavity, a first oil inlet and outlet hole is formed in the cylinder body, a second oil inlet and outlet hole is formed in the cylinder cover, the first oil cavity is communicated with the first oil inlet and outlet hole, and the second oil cavity is communicated with the second oil inlet and outlet hole.
8. The structure for fixing a pull rod and a piston of a two-plate machine according to claim 1, wherein a first sealing member is arranged at the joint of the cylinder body and the pull rod, and a second sealing member is arranged at the joint of the cylinder cover and the pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320321908.7U CN219360221U (en) | 2023-02-27 | 2023-02-27 | A fixed knot constructs that is used for pull rod and piston of two trigger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320321908.7U CN219360221U (en) | 2023-02-27 | 2023-02-27 | A fixed knot constructs that is used for pull rod and piston of two trigger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219360221U true CN219360221U (en) | 2023-07-18 |
Family
ID=87140013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320321908.7U Active CN219360221U (en) | 2023-02-27 | 2023-02-27 | A fixed knot constructs that is used for pull rod and piston of two trigger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219360221U (en) |
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2023
- 2023-02-27 CN CN202320321908.7U patent/CN219360221U/en active Active
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