CN103085244A - Novel expansion device - Google Patents
Novel expansion device Download PDFInfo
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- CN103085244A CN103085244A CN 201110372818 CN201110372818A CN103085244A CN 103085244 A CN103085244 A CN 103085244A CN 201110372818 CN201110372818 CN 201110372818 CN 201110372818 A CN201110372818 A CN 201110372818A CN 103085244 A CN103085244 A CN 103085244A
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- swelling skewback
- oil cylinder
- skewback
- cylinder piston
- piston body
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Abstract
The invention discloses a novel expansion device which comprises an oil cylinder body, an oil cylinder piston body, an expansion inclined block, an elastic element and a locking die pull rod. According to a conical surface theory, by hydraulic thrust, the expansion inclined block expands to be more and more tight in the matching conical surface, and holding force is produced by elastic deformation between an inner arc surface of the expansion inclined block and an outer arc surface of the locking die pull rod, so that tooth-free holding is realized, and the locking die pull rod is locked.
Description
Affiliated technical field
The present invention relates to a kind of Novel expansion device in the hydraulic pressure locked mode part of injection mo(u)lding machinery and die cast machinery.
Background technology
Traditional wrapping device that needs is first to the obvolvent of locked mode pull bar and could realize the hydraulic mold-locking mechanism of high-voltage lock mould after holding tightly; the obvolvent principle of its wrapping device: a kind of with the ring-like alveolus obvolvent corresponding with the locked mode pull bar of the wrapping device of ring-like tooth and make tooth and alveolus locking, thus make wrapping device and locked mode pull bar reach locking state.This with ring-like tooth wrapping device and the obvolvent of locked mode pull bar before first to align the tooth position, not only need consuming time to the tooth position, realize that exactitude position also needs complicated controlling organization, repeatedly the obvolvent meeting occur on wrapping device and the locked mode pull bar on the mechanical wear of tooth, the locked mode pull bar tooth of getting on the bus can reduce the intensity of pull bar.
Summary of the invention
Technical problem to be solved by this invention: a kind of Novel expansion device is provided, this expanding tense machine is according to conical surface principle, adopt hydraulic thrust to make the swelling skewback more swollen tighter within coordinating the conical surface, thereby force to produce strain between the periphery of the inner arc surface of swelling skewback and locked mode pull bar and produce enclasping force, realize the anodontia obvolvent and lock the locked mode pull bar.
The present invention solves the technical scheme that its technical problem adopts: a kind of Novel expansion device, and it comprises cylinder body, oil cylinder piston body, swelling skewback, flexible member, locked mode pull bar; one side of cylinder body inner chamber is provided with the inner conical surface structure, the swelling skewback have the male cone (strobilus masculinus) structure and can with the inner conical surface respective outer side edges of cylinder body, the oil cylinder piston body is contained in cylinder body inner chamber opposite side and can moves around in cylinder body, being provided with screens between swelling skewback and oil cylinder piston body is connected, making the oil cylinder piston body can drive the swelling skewback by this screens connection moves around in cylinder body, swelling skewback and the space that is provided with the radial direction of swelling skewback toward the oil cylinder piston body during screens between the oil cylinder piston body is connected and moves, the swelling skewback makes the inner arc surface when swelling skewback swelling skewback when being subjected to the pressure of cylinder body inner conical surface to coordinate and to hold tightly with locked mode pull bar periphery from its inner arc surface to being provided with the cutting seam its outer surface, the swelling skewback is provided with flexible member, the swelling skewback produces the gap because thereby the elastic reaction of flexible member makes the swelling skewback can make to the radial direction distending of oil cylinder piston body between the periphery of the inner arc surface of swelling skewback and locked mode pull bar under free state, the locked mode pull bar is contained in the center of whole expanding tense machine, when the oil cylinder piston body promotes the swelling skewback toward the inner conical surface side shifting of cylinder body and makes the inner arc surface of swelling skewback under by interior male cone (strobilus masculinus) effect and thereby strain that the periphery generation of locked mode pull bar is huge realizes holding tightly of swelling skewback and locked mode pull bar, when thereby the oil cylinder piston body oppositely produces the gap between the mobile periphery that pulls open the inner arc surface that makes the swelling skewback can make to the radial direction distending of oil cylinder piston body the swelling skewback after the swelling skewback under the effect of swelling skewback at flexible member and locked mode pull bar, complete the disengaging obvolvent.
Beneficial effect of the present invention:
1. because obvolvent is to belong to anodontia swelling obvolvent, need not to adjust the obvolvent position, need not to detect the obvolvent position, the time of these actions can directly be cancelled, and can effectively shorten the obvolvent cycle, improves the production efficiency of machine; Because need not to do any accurate obvolvent Position Control, the requirement of control system is decreased, the complete machine cost, the stability of complete machine and reliability improve.
2. the obvolvent position of locked mode pull bar need not the car tooth, and effectively the tension lifting surface area is maximum, can bear larger clamp force, with the pull bar diameter of tonnage machine can design less, reduce machine cost; Do not have stress to concentrate, pull bar is stressed evenly, improves the service life of pull bar.
Description of drawings
Fig. 1 is front view of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
(1)-cylinder body, (2)-oil cylinder piston body, (3)-swelling skewback, (4)-flexible member, (5)-locked mode pull bar in figure.
The specific embodiment
as Fig. 1, shown in Figure 2, a kind of Novel expansion device, it comprises cylinder body (1), oil cylinder piston body (2), swelling skewback (3), flexible member (4), locked mode pull bar (5), one side of described cylinder body (1) inner chamber is provided with the inner conical surface structure, described swelling skewback (3) have the male cone (strobilus masculinus) structure and can with the inner conical surface respective outer side edges of cylinder body (1), described oil cylinder piston body (2) is contained in cylinder body (1) inner chamber opposite side and can moves around in cylinder body (1), being provided with screens between described swelling skewback (3) and oil cylinder piston body (2) is connected, making oil cylinder piston body (2) can drive swelling skewback (3) by this screens connection moves around in cylinder body (1), described swelling skewback (3) and the space that is provided with the radial direction of swelling skewback (3) toward oil cylinder piston body (2) during screens between oil cylinder piston body (2) is connected and moves, described swelling skewback (3) makes the inner arc surface when swelling skewback (3) swelling skewback (3) when being subjected to the pressure of cylinder body (1) inner conical surface to coordinate and to hold tightly with locked mode pull bar (5) periphery from its inner arc surface to being provided with the cutting seam its outer surface, described swelling skewback (3) is provided with flexible member (4), described swelling skewback (3) under free state due to the elastic reaction of flexible member (4) make swelling skewback (3) can be to oil cylinder piston body (2) thus the radial direction distending make between the periphery of the inner arc surface of swelling skewback (3) and locked mode pull bar (5) and produce the gap, described locked mode pull bar (5) is contained in the center of whole expanding tense machine.
Claims (1)
1. Novel expansion device, it is characterized in that: it comprises cylinder body (1), oil cylinder piston body (2), swelling skewback (3), flexible member (4), locked mode pull bar (5), one side of described cylinder body (1) inner chamber is provided with the inner conical surface structure, described swelling skewback (3) have the male cone (strobilus masculinus) structure and can with the inner conical surface respective outer side edges of cylinder body (1), described oil cylinder piston body (2) is contained in cylinder body (1) inner chamber opposite side and can moves around in cylinder body (1), being provided with screens between described swelling skewback (3) and oil cylinder piston body (2) is connected, making oil cylinder piston body (2) can drive swelling skewback (3) by this screens connection moves around in cylinder body (1), described swelling skewback (3) and the space that is provided with the radial direction of swelling skewback (3) toward oil cylinder piston body (2) during screens between oil cylinder piston body (2) is connected and moves, described swelling skewback (3) makes the inner arc surface when swelling skewback (3) swelling skewback (3) when being subjected to the pressure of cylinder body (1) inner conical surface to coordinate and to hold tightly with locked mode pull bar (5) periphery from its inner arc surface to being provided with the cutting seam its outer surface, described swelling skewback (3) is provided with flexible member (4), described swelling skewback (3) under free state due to the elastic reaction of flexible member (4) make swelling skewback (3) can be to oil cylinder piston body (2) thus the radial direction distending make between the periphery of the inner arc surface of swelling skewback (3) and locked mode pull bar (5) and produce the gap, described locked mode pull bar (5) is contained in the center of whole expanding tense machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110372818 CN103085244A (en) | 2011-11-06 | 2011-11-06 | Novel expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110372818 CN103085244A (en) | 2011-11-06 | 2011-11-06 | Novel expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103085244A true CN103085244A (en) | 2013-05-08 |
Family
ID=48198611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110372818 Pending CN103085244A (en) | 2011-11-06 | 2011-11-06 | Novel expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103085244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239045A (en) * | 2019-06-10 | 2019-09-17 | 海天塑机集团有限公司 | A kind of piston of injection moulding machine mode-locking oil cylinder and pull rod bindiny mechanism and its injection moulding machine mode-locking oil cylinder |
-
2011
- 2011-11-06 CN CN 201110372818 patent/CN103085244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239045A (en) * | 2019-06-10 | 2019-09-17 | 海天塑机集团有限公司 | A kind of piston of injection moulding machine mode-locking oil cylinder and pull rod bindiny mechanism and its injection moulding machine mode-locking oil cylinder |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Ye Tingbi Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Ye Tingbi Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |