CN102886480A - Protector for ejector rod of cold header - Google Patents
Protector for ejector rod of cold header Download PDFInfo
- Publication number
- CN102886480A CN102886480A CN 201110202849 CN201110202849A CN102886480A CN 102886480 A CN102886480 A CN 102886480A CN 201110202849 CN201110202849 CN 201110202849 CN 201110202849 A CN201110202849 A CN 201110202849A CN 102886480 A CN102886480 A CN 102886480A
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- China
- Prior art keywords
- material ejecting
- ejecting rod
- ejector rod
- protector
- slotted hole
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Abstract
The invention discloses a protector for an ejector rod of a cold header. The protector comprises an ejector rod and an ejector rod protecting jacket, wherein a slotted hole is arranged at the center of the ejector rod protecting jacket, the slotted hole is matched with the ejector rod, the ejector rod protecting jacket comprises a head and a main body, a groove penetrating through the whole main body is axially arranged on the main body, a clamping sleeve is arranged on the outer surface of the main body, and the protector has the advantages that when a bolt with an ultra-long specification is formed at one time, the ejector rod is difficult to rupture, safe, high in efficiency, and low in cost.
Description
Technical field
The present invention relates to the cold headers technical field, relate in particular to a kind of protective device for material ejecting rod of cold heading machine.
Background technology
Cold headers are at room temperature the equipment of the forging and molding of the top overstriking of bar or wire rod, and cold headers are mainly for the manufacture of parts such as bolt, screws.The method of employing cold-heading goes out the head upsetting of bolt, screw, then can as far as possible fewly cut or not cut, and then be directly formed to the shape and size that people want, not only save lot of materials, and increase substantially production efficiency, significantly improve the mechanical strength that upsetting goes out part.In the prior art, mostly adopt a mould two to rush cold headers and add the punch press combination and make the outer-hexagonal bolt, rush the cold headers upsetting with a mould two and go out blank with large oval head (its thickness and the first sample of finished product outer-hexagonal are thick), then it is taken and utilize edger to cut out on the punch press to go again machining screw after the outer-hexagonal head comes.The problem of its existence is: as shown in Figure 1, the general long 250mm that is of the straight-bar mould of common cold headers, can only upsetting go out 140 mm with interior bolt, when the bolt more than cold-heading 140 mm, screw rod 1 length is longer, it is longer that material ejecting rod 2 exposes the outer length of straight-bar mould, when punching press, when the huge impulse force that conducts is added to material ejecting rod, very easily cause the material ejecting rod fracture, cause simultaneously die assembly to damage, cause unnecessary loss, changing material ejecting rod wastes time and energy again, and efficient is low, cost is high, has a strong impact on the normal process production of product.
Summary of the invention
Be to solve prior art not enough, the invention provides a kind of simple in structurely, easy fracture, safety, efficient are not high for material ejecting rod during the bolt one-shot forming of producing over-long specification, the protective device for material ejecting rod of cold heading machine that cost is low.
The present invention adopts following technical scheme: protective device for material ejecting rod of cold heading machine; comprise material ejecting rod; it is characterized in that: it also includes the material ejecting rod protective sleeve; the center of described material ejecting rod protective sleeve is provided with slotted hole; described slotted hole matches with material ejecting rod; described material ejecting rod protective sleeve comprises head and body, described body axially on have groove through whole body, the outer surface of described body is provided with retaining sleeve.
The position that approaches with head on the outer surface of described body is provided with guard circle.
The end of described body is provided with tubular casing.
Protective device for material ejecting rod of cold heading machine of the present invention is provided with the material ejecting rod protective sleeve outside material ejecting rod; huge impulse force to material ejecting rod when making processing than stay bolt is dispersed to the material ejecting rod protective sleeve; material ejecting rod is easy fracture not, makes the purpose that bolt cold-heading processing has reached efficient, energy-conservation, product quality is high of over-long specification.
The advantage of protective device for material ejecting rod of cold heading machine of the present invention is: easy fracture, safety, efficient are not high for material ejecting rod during the bolt one-shot forming of producing over-long specification, and cost is low.
Description of drawings
Fig. 1 is the prior art schematic diagram.
Fig. 2 is structural representation of the present invention.
Fig. 3 is that enlarged drawing is looked on the right side of Fig. 2.
Sequence number among the figure: 1, screw rod; 2, material ejecting rod; 3, material ejecting rod protective sleeve; 4, head; 5, body; 6, slotted hole; 7, groove; 8, retaining sleeve; 9, guard circle; 10, tubular casing.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
According to Fig. 2, shown in Figure 3, protective device for material ejecting rod of cold heading machine of the present invention, comprise material ejecting rod 2, it also includes material ejecting rod protective sleeve 3, the center of described material ejecting rod protective sleeve 3 is provided with slotted hole 6, and described slotted hole 6 matches with material ejecting rod 2, and described material ejecting rod protective sleeve 3 comprises head 4 and body 5, described body 5 axially on have groove 7 through whole body 5, the outer surface of described body 5 is provided with retaining sleeve 8; The position that approaches with head 4 on the outer surface of described body 5 is provided with guard circle 9; The end of described body 5 is provided with tubular casing 10.
During protective device for material ejecting rod of cold heading machine work of the present invention, the head 4 of material ejecting rod 2 from material ejecting rod protective sleeve 3 inserted in the slotted hole 6, the length of the bolt that goes out according to institute's upsetting, calculate and regulate the length that material ejecting rod exposes head 4, retaining sleeve 8 is placed on the body 5, since body 5 axially on have groove 7 through whole body 5, when retaining sleeve 8 was placed on the certain position of body 5, body 5 was firmly fixing with material ejecting rod 2; The position that approaches with head 4 on the outer surface of body 5 is provided with guard circle 9, can prevent that body 5 from splitting; The end of described body 5 is provided with tubular casing 10, when punching press, can provide a good forced section.
Processing during than stay bolt the huge impulse force to material ejecting rod can directly not be added to material ejecting rod, but be dispersed to the material ejecting rod protective sleeve, thereby can not cause the fracture of material ejecting rod, for a long time safe normal process product.Use protective device for material ejecting rod of cold heading machine of the present invention, allow length be upsetting to go out the longest bolt of 230mm that is by the common cold headers of 250mm straight-bar mould.
The material of protective device for material ejecting rod of cold heading machine of the present invention is chromium 12 molybdenum-vanadium steels.
More than describe embodiments of the present invention in detail, but this example of just lifting for the ease of understanding should not be considered to be limitation of the scope of the invention.Equally, any person of ordinary skill in the field all can according to the description of technical scheme of the present invention and preferred embodiment thereof, make various possible being equal to and change or replacement, but all these changes or replacement all should belong to the protection domain of claim of the present invention.
Claims (3)
1. protective device for material ejecting rod of cold heading machine; comprise material ejecting rod ⑵; it is characterized in that: it also includes material ejecting rod protective sleeve ⑶; the center of described material ejecting rod protective sleeve ⑶ is provided with slotted hole ⑹; described slotted hole ⑹ matches with material ejecting rod ⑵; described material ejecting rod protective sleeve ⑶ comprises head ⑷ and body ⑸, described body ⑸ axially on have groove ⑺ through whole body ⑸, the outer surface of described body ⑸ is provided with retaining sleeve ⑻.
2. protective device for material ejecting rod of cold heading machine according to claim 1 is characterized in that: the position that approaches with head ⑷ on the outer surface of described body ⑸ is provided with guard circle ⑼.
3. protective device for material ejecting rod of cold heading machine according to claim 1, it is characterized in that: the end of described body ⑸ is provided with tubular casing ⑽.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202849 CN102886480A (en) | 2011-07-20 | 2011-07-20 | Protector for ejector rod of cold header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202849 CN102886480A (en) | 2011-07-20 | 2011-07-20 | Protector for ejector rod of cold header |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102886480A true CN102886480A (en) | 2013-01-23 |
Family
ID=47530271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110202849 Pending CN102886480A (en) | 2011-07-20 | 2011-07-20 | Protector for ejector rod of cold header |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102886480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658482A (en) * | 2013-12-04 | 2014-03-26 | 江苏宏丰奥凯机电有限公司 | Blocking ruler of heading machine |
-
2011
- 2011-07-20 CN CN 201110202849 patent/CN102886480A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658482A (en) * | 2013-12-04 | 2014-03-26 | 江苏宏丰奥凯机电有限公司 | Blocking ruler of heading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |