CN2086190U

CN2086190U - Automatic feeding pneumatic box nailing machine

Info

Publication number: CN2086190U
Application number: CN 90221462
Authority: CN
Inventors: 容维恩
Original assignee: YONGSHUN HARDWARE TOOL FACTORY HETANG XINHUI COUNTY
Current assignee: YONGSHUN HARDWARE TOOL FACTORY HETANG XINHUI COUNTY
Priority date: 1990-09-28
Filing date: 1990-09-28
Publication date: 1991-10-09

Abstract

The utility model discloses a high-efficiency pneumatic nailer capable of automatic nailing, comprising an air intake mechanism, an air distribution mechanism, an air cylinder, a piston lance mechanism, and an automatic nailing mechanism. The high-efficiency pneumatic nailer uses compressed air as motive power to complete nailing process via the control piston of the air distribution mechanism.

Description

Automatic feeding pneumatic box nailing machine

The utility model is the improvement to pneumatic stapler.

Common pneumatic stapler is finished the nailing process by manually advancing the nail cooperation, so inefficiency.

The purpose of this utility model provides a kind of efficient aerodynamic nailing machine that advances to follow closely automatically.

Below in conjunction with accompanying drawing the utility model is described in detail:

Fig. 1 advances to follow closely efficient aerodynamic nailing machine overall structure schematic diagram automatically.Fig. 2 advances nailing machine structure structural representation automatically.Wherein Fig. 2 a is the front view that advances nailing machine structure structural representation automatically, and Fig. 2 b is the left view that advances nailing machine structure structural representation automatically, Fig. 2 c be in the above-mentioned front view along A-A to cutaway view.

This automatic feeding pneumatic box nailing machine by admission gear, valve actuating mechanism, cylinder and piston lance mechanism, automatically advance the nailing machine structure and form, wherein: admission gear comprise connect chew 1, the inlet chamber 2 in the handle; Valve actuating mechanism comprises that plate pulls 3, needle-valve 4, air flue 5, air flue 6, air flue 7, air cavity 8, air admission hole 9, air cavity 10, movable holddown 11, sealing ring 12, spring 13, cylinder head 14, top cover 15, sealing ring 16, air flue 17, cavity 18; Cylinder and piston lance mechanism comprise cylinder 19, piston 20, lance 21, cylinder bottom 22, cylinder wall compression pore 23, cylinder wall balancing air holes 24, cavity 25, cavity 26, cavity 27; Automatically advance the nailing machine structure and comprise ejector pin cover 28, spring guide pillar 29, Compress Spring 30, rivet nut guidance set 31, staple cartridge assembly 32, hook 33.

This pneumatic stapler is before starting working, (such as Fig. 1 state) chews 1 access to pressure gas source by connecing earlier, and is full of inlet chamber 2, and this moment, gas had the outlet of two places: a place is air admission hole 9, after gas entered air cavity 10 from air admission hole 9, gas pressure was at the bottom margin of movable holddown 11; Another place is needle-valve 4, gas from needle-valve 4 after air flue 5, air flue 6, air flue 7 enter air cavity 8, gas pressure is at the top surface of movable holddown 11, because the compression area at movable holddown top is much larger than the compression area of its bottom margin at this moment, be the downward direction active force at its top much larger than the upward direction active force of its bottom, so movable holddown is to lower compression cylinder, and by sealing ring 12 sealings, make the gas in the air cavity 10 can not enter cylinder, that is can not be to piston action. When pneumatic stapler is started working, elder generation's wrench plates pulls 3, needle-valve 4 namely cuts off the source of the gas that leads to air cavity 8, at this moment, because the movable holddown top lost atmospheric pressure, and the atmospheric pressure of the suffered air cavity 10 in bottom is greater than the active force of top spring 13, so movable holddown is by jack-up upwards, and with spring 13 compressions, simultaneously closed airway 17. This moment, the gas of cavity 10 entered cavity 25, and air pressure acts on the top of piston 20 immediately, and piston is down impacted together with lance 21, and lance is knocking-on with the rivet nut 34 of the end that keeps left most in the staple cartridge assembly 32. Meanwhile, because piston moves downward, the gas of cavity 26 is compressed, and enters cavity 27 from the compression of the cylinder wall below piston total kilometres pore 23, makes the gas of cavity 27 by compression, and air pressure increases.

Pull when loosening to pull, promptly pulling pulls resets, needle-valve 4 is open-minded again, air cavity 8 is full of pressed gas immediately, the atmospheric pressure that acts on the movable holddown top is added the restoring force of spring 13 much larger than the atmospheric pressure that acts on its bottom, therefore movable holddown 11 moves downward, the cavity 25 of cylinder is cut off with cavity 10, meanwhile, because piston moves downward, reopen air flue 17, cavity 25 is communicated with the cavity 18 that is communicated with atmosphere by air flue 17, and therefore, the atmospheric pressure that act on top land this moment only is an atmospheric pressure, its value is less than the pressure of the Compressed Gas in piston base suffered cavity 26 and the cavity 27, thus piston 20 together with lance 21 by refunds original position upwards.Consider loosen pull pull before, the pressure of the Compressed Gas in cavity 26 and the cavity 27 can descend gradually along with the slow leakage of gas, cause piston upwards not reset for making its pressure be unlikely to descend gradually, some balance pores 24 on cylinder wall, have been designed, more than the top land of the height and position of balance pore design when piston is in down stroke position, and make the balance hole diameter very little, this moment, the balance pore slowly was communicated with the cylinder cavity 25 more than the top land with cavity 27, even even if the gas pressure in the cavity 27 descends gradually and also can make and remain on the cavity pressure of 25 this moments by minimum pressure (this moment, cavity 25 passed through air cavity 10, air admission hole 9, inlet chamber in the handle is communicated with pressure gas source), that is minimum pressure also is no less than the pressure of pressure gas source, is enough to promote piston and lance resets.

After piston and lance thereof reset, advance automatically that compression spring 30 is moved to the left along nail body guidance set along the nail body that spring guide pillar 29 promotes in the nail case assemblies 32 in the nailing machine structure, it is stand-by promptly to enter the original position of first nail that has consumed by second nail in row's nail.

Thus, the entire work process of pneumatic stapler is finished, and pulls as long as mutatis mutandis nail position pulled continuously, and pneumatic stapler gets final product continuous operation.

The utility model has improved the operating efficiency of pneumatic stapler greatly because its structure advanced person particularly can advance nail automatically.

Claims

1, a kind ofly advances to follow closely the efficient aerodynamic nailing machine automatically, form by admission gear, valve actuating mechanism, cylinder and piston lance mechanism, it is characterized in that, the utility model pneumatic stapler also contains and advances the nailing machine structure automatically, and this mechanism is become by nail case assembly, nail body guidance set, ejector pin cover, spring guide pillar, compression spring set.