Pneumatic open-close type traction apparatus
Technical field
The invention discloses a kind of pneumatic open-close type traction apparatus, belong to packing machinery technology.
Background technology
At present, domestic packer haulage gear uses the pressure size between spring control traction wheel, this mode more
Structure is complicated and is not easy to control and the regulation of pressure, and between traction wheel, the too small meeting of pressure causes bag film to skid with traction wheel, leads
Pressure between running wheel is excessive causes a bag mould wound, crush, and reduces the stability that packer runs.
Summary of the invention
It is an object of the invention to provide a kind of pneumatic open-close type traction apparatus, to solve the structure complexity that prior art exists
And it being not easy to control and the regulation of pressure, between traction wheel, the too small meeting of pressure causes bag film to skid with traction wheel, between traction wheel
Pressure excessive cause bag mould wound, crush, the problem reducing packer operation stability.
The technical scheme is that a kind of pneumatic open-close type traction apparatus, it is characterised in that it includes fixing bar, peace
Be contained in fixing bar one end installing plate, be arranged on fixing bar and installing plate for realize traction wheel folding and traction wheel it
Between pressure controlled pneumatic open-and-close mechanism, be arranged on fixing bar for realize traction wheel rotate drive mechanism.
Beneficial effects of the present invention: simple in construction, compact, is arranged on bag film packer, can by pneumatic open-and-close mechanism
With the pressure between easily regulation traction wheel, it is to avoid pressure between traction wheel is too small causes bag film to skid with traction wheel,
It also avoid the pressure between traction wheel excessive to cause bag mould wound, crush, not only make that packer is easy to adjust also enhances bag
The stability that installation runs.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention.
Description of symbols in figure: 1, close sliding seat, 2, folding slide block, 3, folding guide rail, 4, folding cylinder, 5, folding fixes
Seat, 6, air pressure regulator, 7, fixing bar, 8, cylinder mounting plate, 9, final drive shaft, 10, driving gear, 11, driven gear, 12,
Driven shaft, 13, drive motor, 14, initiative traction wheel, 15, driven traction wheel.
Detailed description of the invention
See Fig. 1, one of the present invention pneumatic open-close type traction apparatus, it is characterised in that it include fixing bar 7,
Be arranged on fixing bar 7 one end installing plate 8, be arranged on fixing bar 7 and installing plate 8 for realizing traction wheel folding and leading
Pressure controlled pneumatic open-and-close mechanism between running wheel, be arranged on fixing bar 7 for realizing the drive mechanism that traction wheel rotates.
Described pneumatic open-and-close mechanism it include folding sliding seat 1, folding slide block 2, folding guide rail 3, folding cylinder 4, folding
Fixing seat 5, air pressure regulator 6;One end of described folding slide block 2 is fixed on folding sliding seat 1, and the other end is slidably mounted on out
Closing on guide rail 3, described folding guide rail 3 is fixed on fixing bar 7, and described folding sliding seat 1 passes through with the piston rod of folding cylinder 4
Oscillating bearing is connected, and the cylinder body of described folding cylinder 4 is arranged on cylinder mounting plate 8, and described folding cylinder 4 can drive folding
Sliding seat 1 moves along a straight line along the track of folding guide rail 3.Described folding is fixed seat 5 and is fixed on fixing bar 7, described air pressure
Regulation valve 6 is connected with the air inlet of folding cylinder 4 by trachea, and its air pressure acting as regulation input folding cylinder 4 makes actively
Suitable pressure is obtained between traction wheel 14 and driven traction wheel 15.
Described drive mechanism it include final drive shaft 9, driving gear 10, driven gear 11, driven shaft 12, drive motor
13, initiative traction wheel 14, driven traction wheel 15;Described final drive shaft 9 turns through folding and fixes seat 5;The top of final drive shaft 9
Driving gear 10 is installed, and top is connected with the output shaft driving motor 13, installs initiative traction wheel in the bottom of final drive shaft 9
14.Described driven shaft 12 turns through folding sliding seat 1, is respectively mounted driven gear 11 He in these driven shaft 12 top and bottom
Driven traction wheel 15, this driven gear 11 engages with driving gear 10, and initiative traction wheel 14 is corresponding with driven traction wheel 15.Institute
Stating driving motor 13 drives final drive shaft 9 to drive driving gear 10, initiative traction wheel 14 to rotate;Described driving gear 10 drive from
Moving gear 11 rotates, and described driven gear 11 drives driven traction wheel 15 to rotate.
When the present invention works, packer used bag film passes between initiative traction wheel 14 and driven traction wheel 15, folding
Cylinder 4 drives folding sliding seat 1 to fix seat 5 direction to folding and slides, and initiative traction wheel 14 and driven traction wheel 15 compress bag film,
Make to be closed between initiative traction wheel 14 and driven traction wheel 15 by the air pressure of air pressure regulator 6 regulation input folding cylinder 4
Suitable pressure, drives motor 13 to drive initiative traction wheel 14 and driven traction wheel 15 to rotate by drive mechanism, and bag film is along traction
Wheel rotation direction moves.