CN213382809U - Injection cylinder piston rod structure of injection molding machine - Google Patents
Injection cylinder piston rod structure of injection molding machine Download PDFInfo
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- CN213382809U CN213382809U CN202022072779.1U CN202022072779U CN213382809U CN 213382809 U CN213382809 U CN 213382809U CN 202022072779 U CN202022072779 U CN 202022072779U CN 213382809 U CN213382809 U CN 213382809U
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Abstract
The utility model discloses an injection machine injection cylinder piston rod structure, including the piston rod, mould injection part, the tight mother of piston rod and gland in advance, piston rod one end and the tight female threaded connection of piston rod, mould injection part in advance and be equipped with the mounting hole, the piston rod is worn to establish in the mounting hole, gland and the tight female bolted connection of piston rod, the tight mother one side of piston rod is kept away from in the mounting hole is equipped with first boss, is equipped with the step on the piston rod, step and first boss butt. The utility model provides a pair of injection molding machine injection cylinder piston rod structure has following advantage: the stress position of the piston rod is changed, the stress area of the piston rod is increased, the strength of the piston rod is further enhanced, and the injection force generated during injection is released to the pre-molded injection component in a larger area, so that the effect that the piston rod and the piston rod nut are not easy to break is achieved.
Description
Technical Field
The utility model relates to an injection molding machine technical field especially relates to an injection molding machine injection cylinder piston rod structure.
Background
The double-cylinder injection is the most common injection structure applied in the industry at present, and in the injection action process, the glue injection piston rod drives the injection platform back plate component to move back and forth under the pulling force of the oil cylinder. In the working period, the injection piston rod of the injection molding machine is often broken in the processes of pre-molding and injecting glue, and particularly, the breakage is more at the position between the piston rod and the piston rod nut.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a difficult cracked injection cylinder piston rod structure of injection molding machine in order to solve the not enough of above-mentioned technique.
The utility model provides a pair of injection molding machine injection cylinder piston rod structure, including the piston rod, mould injection part, the tight mother of piston rod and gland in advance, piston rod one end and the tight female threaded connection of piston rod, mould injection part in advance and be equipped with the mounting hole, the piston rod is worn to establish in the mounting hole, gland and the tight female bolted connection of piston rod, the tight mother one side of piston rod is kept away from in the mounting hole is equipped with first boss, is equipped with the step on the piston rod, step and first boss butt.
In order to improve the strength of the mounting hole, a second boss is arranged on the other side of the mounting hole and is abutted against the piston rod tightening nut.
The utility model provides a pair of injection molding machine injection cylinder piston rod structure has following advantage: the stress position of the piston rod is changed, the stress area of the piston rod is increased, the strength of the piston rod is further enhanced, and the injection force generated during injection is released to the pre-molded injection component in a larger area, so that the effect that the piston rod and the piston rod nut are not easy to break is achieved.
Drawings
Fig. 1 is an explosion diagram of the structure of embodiment 1 of the present invention;
fig. 2 is a sectional view of embodiment 1 of the present invention;
fig. 3 is a sectional view of a mounting hole according to embodiment 2 of the present invention.
In the figure: the injection molding device comprises a piston rod 1, a pre-molding injection part 2, a piston rod nut 3, a gland 4, a mounting hole 5, a first boss 6, a step 7 and a second boss 8.
Detailed Description
In order to clearly understand the technical solution of the present invention, the present invention is further illustrated by the following embodiments in combination with the accompanying drawings.
Example 1:
the injection cylinder piston rod structure of injection molding machine that this embodiment provided, as shown in fig. 1, fig. 2, including piston rod 1, mould injection part 2 in advance, the tight mother 3 of piston rod and gland 4, 1 one end of piston rod and the tight mother 3 threaded connection of piston rod, mould injection part 2 in advance and be equipped with mounting hole 5, in piston rod 1 wears to establish mounting hole 5, gland 4 and the tight mother 3 bolted connection of piston rod, mounting hole 5 is kept away from the tight mother 3 one side of piston rod and is equipped with first boss 6, is equipped with step 7 on the piston rod 1, step 7 and the butt of first boss 6.
Through the design, the strength of the mounting hole 5 is improved by the first boss 6, the stress position of the piston rod 1 is changed by the step 7, the original stress at the minimum diameter position of the piston rod 1 is changed into the stress at the maximum diameter position of the piston rod 1, the stress area of the piston rod 1 is increased, the strength of the piston rod 1 is enhanced, the injection force generated during injection is released to the pre-molded injection part 2 in a larger area, and therefore the effect that the piston rod 1 and the piston rod nut 3 are not easy to break is achieved.
The device has avoided the injection molding machine to take place at the easy cracked condition of penetrating gluey in-process piston rod 1, very big improvement the area that the piston rod 1 released the injection power, strengthened the intensity of piston rod 1, avoided the cracked probability of piston rod 1.
Example 2:
in order to improve the strength of the mounting hole 5, as shown in fig. 3, in the injection cylinder piston rod structure of the injection molding machine provided in this embodiment, in addition to the features described in embodiment 1, a second boss 8 is arranged on the other side of the mounting hole 5, and the second boss 8 abuts against the piston rod nut 3.
Through the design, the strength of the mounting hole 5 is increased due to the design of the second boss 8, so that the mounting hole 5 can bear higher pressure.
Claims (2)
1. The utility model provides an injection cylinder piston rod structure of injection molding machine, includes piston rod (1), moulds injection part (2) in advance, tight mother (3) of piston rod and gland (4), piston rod (1) one end and the tight mother (3) threaded connection of piston rod, moulds injection part (2) in advance and is equipped with mounting hole (5), and piston rod (1) is worn to establish in mounting hole (5), and gland (4) and the tight mother (3) bolted connection of piston rod, its characterized in that the tight mother (3) one side of piston rod is kept away from in mounting hole (5) is equipped with first boss (6), is equipped with step (7) on piston rod (1), step (7) and first boss (6) butt.
2. The injection cylinder piston rod structure of the injection molding machine according to claim 1, characterized in that: and a second boss (8) is arranged on the other side of the mounting hole (5), and the second boss (8) is abutted to the piston rod tightening nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022072779.1U CN213382809U (en) | 2020-09-21 | 2020-09-21 | Injection cylinder piston rod structure of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022072779.1U CN213382809U (en) | 2020-09-21 | 2020-09-21 | Injection cylinder piston rod structure of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213382809U true CN213382809U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022072779.1U Active CN213382809U (en) | 2020-09-21 | 2020-09-21 | Injection cylinder piston rod structure of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213382809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290799A (en) * | 2021-06-09 | 2021-08-24 | 北京化工大学 | Injection molding machine pull rod device |
-
2020
- 2020-09-21 CN CN202022072779.1U patent/CN213382809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290799A (en) * | 2021-06-09 | 2021-08-24 | 北京化工大学 | Injection molding machine pull rod device |
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