CN202293245U - Piston rod fastening mechanism special for injection molding machine - Google Patents
Piston rod fastening mechanism special for injection molding machine Download PDFInfo
- Publication number
- CN202293245U CN202293245U CN2011204087203U CN201120408720U CN202293245U CN 202293245 U CN202293245 U CN 202293245U CN 2011204087203 U CN2011204087203 U CN 2011204087203U CN 201120408720 U CN201120408720 U CN 201120408720U CN 202293245 U CN202293245 U CN 202293245U
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- China
- Prior art keywords
- screw
- binding
- piston rod
- fastening
- piston bar
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a piston rod fastening mechanism special for an injection molding machine. According to the mechanism, a fastening screw only bear positive pressure in a working process by a special screw fastening mode; and by fully utilizing the performance of part materials, the mechanism has high cost performance on the basis of guaranteeing that the mechanism has stable performance. The piston rod fastening mechanism special for the injection molding machine comprises a fastening plate (1), a stop screw (2), a stop nut (3), a cross head (4), and a mould locking piston rod (5); the fastening plate (1), the cross head (4) and the mould locking piston rod (5) form a function base body in a screw thread pair connection mode, and a subdivision groove on the fastening plate (1) is tightly expanded by the stop screw (2) to prevent the loosening of the thread connection of the function base body; and the stop nut (3) is arranged on the stop screw (2) and is combined with a thread on the fastening plate (1) to form a double-nut structure, so that the stop screw (2) is prevented from being loosened.
Description
Affiliated technical field
The utility model relates to a kind of injection machine special piston bar retention mechanism.
Background technology
Follow the modern industry economic development, the behaviour in service of large size plastic jetting-moulding device becomes increasingly complex.For using increasingly extensive large-scale mechanical reaming type injection machine, the performance requirement of the main load bearing element of each on the equipment progressively improves, especially locking piston bar retention mechanism.For large-scale mechanical reaming type injection machine, though the machine hinge body has the amplification performance of power, its Mode-locking oil cylinder still will provide the driving force more than 30 tons.In conjunction with particular job situation of injection machine, locked mode piston rod retention mechanism will satisfy easy to assembly, locking reliable structural requirement on large-scale mechanical reaming type injection machine, and the limitation of existing piston bar retention mechanism has just shown especially.
Existing piston bar retention mechanism, first kind is to adopt binding to add stop washer, hold-down nut, this structure is actual to be stop washer to be set to realize the locking of piston rod and binding, through hold-down nut location stop washer on the piston rod binding.This kind mechanism is less at type, is the structure of using comparative maturity when diameter of piston rod is little.On large-scale machine, because diameter of piston rod becomes big, stop washer, the strain of round nut specification phase are big, and infrastructure cost rises significantly.
Second kind is to be employed in binding near the radially subdivision groove of the arranged outside degree of depth after assembling greater than the binding radius, and on subdivision groove Outboard Sections, processes the screw via hole, at the coaxial processing screw hole of opposite side.During assembling, earlier binding, crosshead, locking piston bar are connected reliably, tighten up at subdivision groove place with screw then, make subdivision groove both sides that strain locking with between realization binding and the locking piston bar taken place.It is working standard spare that this structure adopts locking part, with low cost, but because backing-up screw receives pulling force, under the actual condition of large-scale mechanical reaming type injection machine, very easily produces the backing-up screw fracture, the situation of failure mechanisms.
Summary of the invention
The utility model technical problem to be solved: a kind of injection machine special piston bar retention mechanism is provided.This mechanism realizes that through novel screw fastening means trip bolt only bears normal pressure in the course of the work, makes full use of the part material performance, is guaranteeing to realize higher institutional price ratio on the stable basis of mechanism performance.
The utility model solves the technical scheme that its technical problem adopts: a kind of injection machine special piston bar retention mechanism; It comprises binding, backing-up screw, stop nut, crosshead, piston rod; The position that is in the outside after the binding assembling is provided with the radially subdivision groove of the degree of depth greater than the binding radius, at subdivision groove arranged outside tapped through hole.Binding is pressed in crosshead through the screw thread pair between binding and the locking piston bar step section of locking piston bar; Backing-up screw screws in binding and swelling subdivision groove through the tapped through hole in the subdivision groove outside on the binding, and stop nut compresses binding along the backing-up screw screw thread.
Beneficial effect of the present invention:
1. the utility model mechanism structure is simple, processes simple and easyly, and effect stability has effectively improved mechanism element production efficiency.
2. because the backing-up screw in the mechanism only is stressed, improve the part stress situation, effectively avoided the fracture failure of screw, improved the reliability of mechanism, the service life of extending structure.
3. locking part is the current version part in the mechanism, effectively reduces agency cost.
Description of drawings
Fig. 1 is the front view of the utility model.
1-binding, 2-backing-up screw, 3-stop nut, 4-crosshead, 5-locking piston bar among the figure.
The specific embodiment
As shown in Figure 1, a kind of injection machine special piston bar retention mechanism: it comprises binding (1), backing-up screw (2), stop nut (3), crosshead (4), locking piston bar (5); With screw thread pair type of attachment composition function matrix, backing-up screw (2) carries out locking through the subdivision groove on the swelling binding (1) to being threaded of function matrix between described binding (1) and crosshead (4), the locking piston bar (5); Described stop nut (3) is arranged on the backing-up screw (2), through with binding (1) on screw thread be combined to form double nuts structure, realize locking to backing-up screw (2).
Operation principle:
Binding through and the locking piston bar between screw thread crosshead is pressed in the step section of locking piston bar, the subdivision groove on the binding is owing to the tensile force that receives backing-up screw produces strain, and is loosening to prevent to produce between binding and the crosshead; The pairs of anti-loose nut structure of stop nut on the backing-up screw and the paired backing-up screw of thread-shaped on the binding, realization is locking to backing-up screw, thereby satisfies mechanism's reliable performance requirement easy to assembly, fixing.
Claims (2)
1. injection machine special piston bar retention mechanism, it is characterized in that: it comprises binding (1), backing-up screw (2), stop nut (3), crosshead (4), locking piston bar (5); The position that is in the outside after binding (1) assembling is provided with the radially subdivision groove of the degree of depth greater than binding (1) radius, at subdivision groove arranged outside tapped through hole.
2. a kind of injection machine special piston bar retention mechanism as claimed in claim 1; It is characterized in that: binding (1) is pressed in crosshead (4) through the screw thread pair between binding (1) and the locking piston bar (5) the step section of locking piston bar (5); The tapped through hole that backing-up screw (2) is gone up the subdivision groove outside through binding (1) screws in binding (1) and swelling subdivision groove, and stop nut (3) compresses binding (1) along backing-up screw (2) screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204087203U CN202293245U (en) | 2011-10-17 | 2011-10-17 | Piston rod fastening mechanism special for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204087203U CN202293245U (en) | 2011-10-17 | 2011-10-17 | Piston rod fastening mechanism special for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202293245U true CN202293245U (en) | 2012-07-04 |
Family
ID=46362216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204087203U Expired - Fee Related CN202293245U (en) | 2011-10-17 | 2011-10-17 | Piston rod fastening mechanism special for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202293245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019513A (en) * | 2018-01-04 | 2018-05-11 | 深圳市特尔佳科技股份有限公司 | Plug locking device and its plug anti-loose method |
-
2011
- 2011-10-17 CN CN2011204087203U patent/CN202293245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019513A (en) * | 2018-01-04 | 2018-05-11 | 深圳市特尔佳科技股份有限公司 | Plug locking device and its plug anti-loose method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BORCHE MACHINERY CO., LTD. Free format text: FORMER NAME: GUANGZHOU BOCHUANG MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 511340 Guangzhou Province, Zengcheng City automobile industry base, Cheung Road, No. 9 Patentee after: Borch Machiney Co., Ltd. Address before: 511340 Guangzhou Province, Zengcheng City automobile industry base, Cheung Road, No. 9 Patentee before: Guangzhou Borche Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |