CN102862272A - Mould draw bar - Google Patents
Mould draw bar Download PDFInfo
- Publication number
- CN102862272A CN102862272A CN2012103716090A CN201210371609A CN102862272A CN 102862272 A CN102862272 A CN 102862272A CN 2012103716090 A CN2012103716090 A CN 2012103716090A CN 201210371609 A CN201210371609 A CN 201210371609A CN 102862272 A CN102862272 A CN 102862272A
- Authority
- CN
- China
- Prior art keywords
- draw bar
- movable bushing
- cap screw
- cavity
- screw
- 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.)
- Pending
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a mould draw bar which comprises a cap screw and a movable bushing. The cap screw comprises a nut and a screw rod, the lower end of the screw rod is provided with a thread, a cavity is reserved in the middle of the movable bushing, and the cap screw is embedded in the cavity in the middle of the movable bushing and is jointed with the movable bushing. Owning to the movable bushing arranged outside the draw bar, force can be dispersed rather than concentrated at one point when the whole draw bar is applied with tension force from an injection molding machine, and possibility of breakage of the draw bar can be reduced. In addition, the movable bushing is easy to machine, can be lathed by a lathe directly, is low in precision requirement and low in production cost.
Description
Technical field
The present invention relates to mould manufacturing field, be specifically related to a kind of mould pull bar.
Background technology
Pull bar is a kind of vitals on three board molds, and the quality of its performance directly affects the quality of product.At present, the Tiebar structure that adopts on three template dies generally as shown in Figure 1, in actual production process, because die sinking is fast, the knockout press that needs is larger, and frequency of utilization is high, so the pull bar of this structure breaks through bar body 1 place that is everlasting, cause to give birth to and interrupt, cause product rejection, strengthened production cost.
Summary of the invention
For defects and the problem of existing mold pull bar, the purpose of the embodiment of the invention provides a kind of mould pull bar.
In order to achieve the above object, the embodiment of the invention provides following technical scheme: a kind of mould pull bar, comprise hexagonal socket head cap screw and loose bush, described hexagonal socket head cap screw comprises cap nut and lead screw, the lower end of lead screw is provided with screw thread, the middle part of described loose bush is provided with cavity, and described hexagonal socket head cap screw closes with loose bush phase scarf in the cavity at loose bush middle part.
The mould pull bar that the embodiment of the invention provides, by at pull bar peripheral hardware loose bush, so that whole pull bar is when being subject to the injection machine pulling force, can disperse strength, be unlikely to strength and concentrate a bit, reduce the possibility of pull bar fracture, and loose bush processing is simple, directly go out with the lathe car, and required precision is not high, production cost is low.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of prior art pull bar;
Fig. 2 is the structural representation of the mould pull bar of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 2, a kind of mould pull bar that the embodiment of the invention provides, comprise hexagonal socket head cap screw 2 and loose bush 3, described hexagonal socket head cap screw 2 comprises cap nut 21 and lead screw 22, the lower end of lead screw 22 is provided with screw thread 23, the middle part of described loose bush 3 is provided with cavity 31, and described hexagonal socket head cap screw 2 closes with loose bush 3 phase scarves in the cavity 31 at loose bush 3 middle parts.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (1)
1. mould pull bar, it is characterized in that: comprise hexagonal socket head cap screw and loose bush, described hexagonal socket head cap screw comprises cap nut and lead screw, the lower end of lead screw is provided with screw thread, the middle part of described loose bush is provided with cavity, and described hexagonal socket head cap screw closes with loose bush phase scarf in the cavity at loose bush middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103716090A CN102862272A (en) | 2012-09-29 | 2012-09-29 | Mould draw bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103716090A CN102862272A (en) | 2012-09-29 | 2012-09-29 | Mould draw bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102862272A true CN102862272A (en) | 2013-01-09 |
Family
ID=47441533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103716090A Pending CN102862272A (en) | 2012-09-29 | 2012-09-29 | Mould draw bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102862272A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934970A (en) * | 2014-05-08 | 2014-07-23 | 昆山腾宇鑫金属制品有限公司 | Guide cover mold |
| CN105128136A (en) * | 2015-09-11 | 2015-12-09 | 北京航华星金属结构厂 | End plate structure of sleeper mould |
-
2012
- 2012-09-29 CN CN2012103716090A patent/CN102862272A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 徐森亮: ""杯盖"三板式注塑模具设计与制造", 《模具技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934970A (en) * | 2014-05-08 | 2014-07-23 | 昆山腾宇鑫金属制品有限公司 | Guide cover mold |
| CN105128136A (en) * | 2015-09-11 | 2015-12-09 | 北京航华星金属结构厂 | End plate structure of sleeper mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |