CN203948376U - A kind of advance and retreat cylinder structure - Google Patents

A kind of advance and retreat cylinder structure Download PDF

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Publication number
CN203948376U
CN203948376U CN201420390037.5U CN201420390037U CN203948376U CN 203948376 U CN203948376 U CN 203948376U CN 201420390037 U CN201420390037 U CN 201420390037U CN 203948376 U CN203948376 U CN 203948376U
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CN
China
Prior art keywords
cylinder
protecgulum
piston
piston rod
groove
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Active
Application number
CN201420390037.5U
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Chinese (zh)
Inventor
张允升
徐定俊
徐晓东
杜严庆
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Ningbo Yonghua Plastic Machinery Manufacturing Co., Ltd.
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UNIVERSAL PLASTIC MACHINERY Manufacturing Co Ltd NINGBO
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Priority to CN201420390037.5U priority Critical patent/CN203948376U/en
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Abstract

The utility model provides a kind of advance and retreat cylinder structure, belongs to injection machine technical field.These advance and retreat cylinder structure comprises oil cylinder, pressing plate, piston rod and joint, oil cylinder comprises cylinder body, protecgulum, bonnet and three are tightly connected and form inner chamber, in inner chamber, be provided with piston, the outer side wall of piston is provided with the first groove and two second grooves, the first guidance tape is installed in the first groove, first " U " shape circle is all installed in each the second groove, bearing cap is installed on protecgulum, piston rod one end is through bearing cap, protecgulum is also connected with piston, the other end is connected with joint screw thread, protecgulum middle part offers breach and two lid grooves, be provided with second " U " shape circle in breach bottom, in each lid groove, the second guidance tape is all installed, bearing cap has against boss, stretch in breach and with second " U " shape circle and contact against boss.That these advance and retreat cylinder structure has advantages of is reasonable in design, sealability is good, stable working.

Description

A kind of advance and retreat cylinder structure
Technical field
The utility model belongs to injection machine technical field, relates to a kind of advance and retreat cylinder structure, particularly a kind of advance and retreat cylinder structure that is applicable to injection machine.
Background technique
Mould is the indispensable part of product manufacturing industry, and the quality of a secondary Design of Dies directly has influence on the quality of product.Injection machine is used more frequent at present, in injection machine, generally adopts oil cylinder ejecting device, and it comprises the advance and retreat cylinder structure being made up of the component such as oil cylinder, piston rod, promotes in-oil cylinder piston movement by oil pressure, the work of piston driving piston rod.In brief, the advance and retreat cylinder structure of injection machine is exactly the mechanism that drives piston rod to move forward and backward for realizing oil cylinder.
In prior art, the advance and retreat cylinder structure design of most of injection machines is unreasonable, and oil cylinder coordinates not tight with piston rod, make overall structure sealability and stability poor, can not meet normal user demand.
In sum, need to design a kind of reasonable in design, sealability is good, the advance and retreat cylinder structure of stable working.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, proposed a kind of reasonable in design, sealability is good, the advance and retreat cylinder structure of stable working.
The purpose of this utility model can realize by following technical proposal: a kind of advance and retreat cylinder structure, comprise oil cylinder, pressing plate, piston rod and be installed in the joint on pressing plate, described oil cylinder comprises cylinder body, protecgulum, bonnet and three are tightly connected and form inner chamber, described protecgulum, bonnet is arranged on respectively the two ends of cylinder body, between protecgulum and bonnet, be also provided with around four struts that are evenly distributed on outside cylinder body, in inner chamber, be provided with the piston of energy straight line slippage, the outer side wall of described piston is provided with the first groove and is symmetricly set on two second grooves of the first groove both sides, the first guidance tape is installed in the first groove, in each the second groove, be all provided with respectively and piston, first " U " shape circle of cylinder body Spielpassung, on described protecgulum, bearing cap is installed, described piston rod one end is through bearing cap, protecgulum is also connected with piston, the other end is connected with joint screw thread, described piston rod coordinates with piston clearance by the first round section joint ring, described protecgulum, bonnet is respectively by the second round section joint ring and cylinder body Spielpassung, described protecgulum middle part offers breach and two lid grooves, be provided with in breach bottom respectively and protecgulum, second " U " shape circle of piston rod Spielpassung, in each lid groove, the second guidance tape is all installed, described bearing cap have match with breach against boss, describedly stretch in breach and contact with second " U " shape circle against boss, described bearing cap is by the 3rd round section joint ring and protecgulum Spielpassung, described piston rod is tightly connected by dust ring and bearing cap.
In above-mentioned one advance and retreat cylinder structure, inner chamber is divided into air cavity and oil pocket by described piston, and described cylinder body offers at least one pore and at least one oilhole, each pore all with air cavity UNICOM, each oilhole all with oil pocket UNICOM.
In above-mentioned one advance and retreat cylinder structure, between described piston rod and joint, be also provided with locknut.
Compared with prior art, the utlity model has following advantage:
1, piston rod is connected by joint and pressing plate, and pressing plate is externally connected with extraneous injection mould, and piston rod coordinates indirectly with injection mould, makes piston rod fixing more firm, and working procedure is more stable;
2, between protecgulum and bonnet, be also provided with four struts, four struts are separately positioned on four corner corresponding positions of protecgulum, bonnet, reasonable in design, protecgulum, bonnet are connected firm, make oil cylinder stable working;
3, seal ring adopts the structure of round section joint ring and the combination of " U " shape circle, the first round section joint ring, the second round section joint ring, the 3rd round section joint ring have formed triple sealing layers, coordinate the setting of corresponding " U " shape circle, reasonable in design, makes overall sealing performance good again.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model one preferred embodiment.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 be in Fig. 2 A-A to sectional view.
Fig. 4 is the structural representation of protecgulum in the utility model one preferred embodiment.
Fig. 5 is the structural representation of the utility model one preferred embodiment middle (center) bearing lid.
In figure, 10, oil cylinder; 11, cylinder body; 12, protecgulum; 121, breach; 122, lid groove; 13, bonnet; 14, inner chamber; 15, strut; 16, piston; 20, pressing plate; 30, piston rod; 40, joint; 51, the first guidance tape; 52, first " U " shape circle; 53, the first round section joint ring; 60, bearing cap; 61, against boss; 70, the second round section joint ring; 81, second " U " shape circle; 82, the second guidance tape; 91, the 3rd round section joint ring; 92, dust ring; 100, locknut.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figures 1 to 5, these advance and retreat cylinder structure comprises oil cylinder 10, pressing plate 20, piston rod 30 and be installed in the joint 40 on pressing plate 20, oil cylinder 10 comprises cylinder body 11, protecgulum 12, bonnet 13 and three are tightly connected and form inner chamber 14, protecgulum 12, bonnet 13 is arranged on respectively the two ends of cylinder body 11, between protecgulum 12 and bonnet 13, be also provided with around four struts 15 that are evenly distributed on outside cylinder body 11, in inner chamber 14, be provided with the piston 16 of energy straight line slippage, the outer side wall of piston 16 is provided with the first groove and is symmetricly set on two second grooves of the first groove both sides, the first guidance tape 51 is installed in the first groove, in each the second groove, be all provided with respectively and piston 16, first " U " shape circle 52 of cylinder body 11 Spielpassung, bearing cap 60 is installed on protecgulum 12, piston rod 30 one end are through bearing cap 60, protecgulum 12 is also connected with piston 16, the other end is threaded with joint 40, piston rod 30 is by the first round section joint ring 53 and piston 16 Spielpassung, protecgulum 12, bonnet 13 is respectively by the second round section joint ring 70 and cylinder body 11 Spielpassung, protecgulum 12 middle parts offer breach 121 and two lid grooves 122, be provided with in breach 121 bottoms respectively and protecgulum 12, second " U " shape circle 81 of piston rod 30 Spielpassung, interior second guidance tape 82 that is all provided with of each lid groove 122, bearing cap 60 have match with breach 121 against boss 61, stretch in breach 121 and with second " U " shape circle 81 and contact against boss 61, bearing cap 60 is by the 3rd round section joint ring 91 and protecgulum 12 Spielpassung, piston rod 30 is tightly connected by dust ring 92 and bearing cap 60.
These advance and retreat cylinder structure is under original state, and piston rod 30 is connected by joint 40 and pressing plate 20, and pressing plate 20 is externally connected with extraneous injection mould, and piston rod 30 coordinates indirectly with injection mould, makes piston rod 30 fixing more firm, and working procedure is more stable; Between protecgulum 12 and bonnet 13, be also provided with four struts 15, in this case, preferably the quantity of strut 15 is four, but be not limited to above-mentioned restriction, four struts 15 are separately positioned on four edges of protecgulum 12, bonnet 13, reasonable in design, make protecgulum 12, that bonnet 13 connects is firm, makes cylinder body 11 stable working.
In this case, seal ring adopts the structure of round section joint ring and the combination of " U " shape circle, and the first round section joint ring 53, the second round section joint ring 70, the 3rd round section joint ring 91 have formed triple sealing layers, then coordinates the setting of corresponding " U " shape circle, reasonable in design, makes overall sealing performance good.
It is worth mentioning that, the setting of each U-shaped circle, all plays buffer function when piston 16 is contacted with cylinder body 11, piston rod 30, has reduced impact force, reduces damage of components, has improved service life of equipment.
Each guidance tape can play the effect of leveling lateral force in the course of the work, and the lateral force producing when oil cylinder 10 is worked can be dispersed into outside cylinder body 11 in time, has overcome the destruction of lateral force to oil cylinder 10, makes oil cylinder 10 stable working, and piston rod 30 transmissions are stable.In addition, in connecting piston 16, piston rod 30, cylinder body 11 threes, guidance tape can reduce the appearance of bent angle, piston 16 and piston rod 30 installations is played more smooth and easy, saves the installation time, has improved working efficiency.
Dust ring 92 in the utility model is directly installed in the protecgulum 12 of oil cylinder 10, has so just strengthened the sealing of protecgulum 12 and piston rod 30, has improved the sealability of equipment, has greatly reduced the leakage of fluid, has saved cost of production.
In addition, the setting of dust ring 92, each round section joint ring, each " U " shape circle, what can also stop extraneous dust and dirt enters oil cylinder 10 inside, avoids affecting the normal operation of oil cylinder 10.
Preferably, inner chamber 14 is divided into air cavity and oil pocket by piston 16, and cylinder body 11 offers at least one pore and at least one oilhole, each pore all with air cavity UNICOM, each oilhole all with oil pocket UNICOM.
In the utility model, the working principle of advance and retreat cylinder structure is: outside oil hydraulic motor pumps into fluid in the oil pocket of oil cylinder 10 by oilhole, piston 16 under the effect of oil pressure at inner chamber 14 rectilinear translations, piston 16 drives the piston rod 30 being connected to realize advance and retreat action simultaneously, until piston 16 operations put in place, in operation, piston rod 30 can not depart from piston 16.Now, air cavity can by inner air via pore discharge extraneous or via pore from extraneous air amount.Said structure is reasonable in design, easy to process, and piston 16 is difficult for rubbing with oil cylinder 10 inwalls in the course of the work, makes oil cylinder 10 and piston rod 30 stable working.
Further preferably, between piston rod 30 and joint 40, be also provided with locknut 100, locknut 100 plays the effect of further reinforcing, mounts and dismounts all more convenient.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims (3)

1. an advance and retreat cylinder structure, it is characterized in that, comprise oil cylinder, pressing plate, piston rod and be installed in the joint on pressing plate, described oil cylinder comprises cylinder body, protecgulum, bonnet and three are tightly connected and form inner chamber, described protecgulum, bonnet is arranged on respectively the two ends of cylinder body, between protecgulum and bonnet, be also provided with around four struts that are evenly distributed on outside cylinder body, in inner chamber, be provided with the piston of energy straight line slippage, the outer side wall of described piston is provided with the first groove and is symmetricly set on two second grooves of the first groove both sides, the first guidance tape is installed in the first groove, in each the second groove, be all provided with respectively and piston, first " U " shape circle of cylinder body Spielpassung, on described protecgulum, bearing cap is installed, described piston rod one end is through bearing cap, protecgulum is also connected with piston, the other end is connected with joint screw thread, described piston rod coordinates with piston clearance by the first round section joint ring, described protecgulum, bonnet is respectively by the second round section joint ring and cylinder body Spielpassung, described protecgulum middle part offers breach and two lid grooves, be provided with in breach bottom respectively and protecgulum, second " U " shape circle of piston rod Spielpassung, in each lid groove, the second guidance tape is all installed, described bearing cap have match with breach against boss, describedly stretch in breach and contact with second " U " shape circle against boss, described bearing cap is by the 3rd round section joint ring and protecgulum Spielpassung, described piston rod is tightly connected by dust ring and bearing cap.
2. a kind of advance and retreat cylinder structure according to claim 1, it is characterized in that, inner chamber is divided into air cavity and oil pocket by described piston, and described cylinder body offers at least one pore and at least one oilhole, each pore all with air cavity UNICOM, each oilhole all with oil pocket UNICOM.
3. a kind of advance and retreat cylinder structure according to claim 2, is characterized in that, is also provided with locknut between described piston rod and joint.
CN201420390037.5U 2014-07-15 2014-07-15 A kind of advance and retreat cylinder structure Active CN203948376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420390037.5U CN203948376U (en) 2014-07-15 2014-07-15 A kind of advance and retreat cylinder structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420390037.5U CN203948376U (en) 2014-07-15 2014-07-15 A kind of advance and retreat cylinder structure

Publications (1)

Publication Number Publication Date
CN203948376U true CN203948376U (en) 2014-11-19

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Family Applications (1)

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179368A (en) * 2015-10-21 2015-12-23 安徽合力股份有限公司 Reversely arranged forklift tilting cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105179368A (en) * 2015-10-21 2015-12-23 安徽合力股份有限公司 Reversely arranged forklift tilting cylinder

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191230

Address after: 315000 Heng Heng village, Shijie street, Haishu District, Ningbo, Zhejiang

Patentee after: Ningbo Yonghua Plastic Machinery Manufacturing Co., Ltd.

Address before: 315155 Zhejiang city of Ningbo province Yinzhou District Shiqi Street Heng Zhang Cun Zhu Han Industrial Zone No. 1

Patentee before: Universal Plastic Machinery Mfg. Co., Ltd., Ningbo