A kind of quantitative packing transmitting device
Technical field
The utility model relates to a kind of quantitative packing transmitting device, relates to a kind of quantitative packing pay-off that is applicable to powdery or granular substance specifically.
Background technology
At present, in existing powdery or the quantitative packing transmitting device of granular material, because it is cylindrical shape that the transmission auger advances the blade rotation profile, stop up in the bucket outside auger for avoiding material, advance the helical pitch of spiral to strengthen gradually, by gravity, the discharging opening place advances the blade back upper place cavity to occur, causes material to drop into the velocity pulsation of receiving hopper, produces the feeding non-uniform phenomenon, form the random error that computer control can't remedy, reduced the precision of quantitative packing.
Summary of the invention
The utility model provides a kind of new quantitative packing transmitting device for overcoming shortcoming of the prior art, and is inhomogeneous to avoid feeding, improves quantitative packing precision.
The utility model is achieved by following technical scheme:
A kind of quantitative packing transmitting device comprises support, transmission auger, electrical motor, feeder hopper and the system that connects material, and the transmission auger is made of spiral propeller and the outer bucket of auger, and is fixed on the support; One end of spiral propeller stretches out the outer bucket of auger, and is connected with an end of belt pulley, and the other end of belt pulley connects electrical motor, and electrical motor is fixed on the support; Feeder hopper is located on the transmission auger, is connected as a single entity with the outer bucket of auger; The system of connecting material comprises receiving hopper and packaging bag, and receiving hopper is connected with packaging bag through sensor, and is fixed on the support.
The blade radius size of described spiral propeller along the discharging opening direction by equidistant to dwindling gradually, promptly the rotation profile of spiral propeller is the combination of cylinder and Rotary-table.
The advantage that the utility model compared with prior art has is, because advancing the rotating range of spiral during work is the combination of cylinder and Rotary-table, more little to the exit radius of rotation more, make conventional transmission auger discharging opening place advance cavity, blade back upper place to fade away, reach the uniform purpose of discharging speed, thereby quantitative packing precision is greatly improved.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of spiral propeller.
The specific embodiment
The utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1, quantitatively the packing transmitting device comprises support, transmission auger, electrical motor, feeder hopper and the system that connects material, and described transmission auger is made of spiral propeller 4 and the outer bucket 5 of auger, and is fixed on the support 9; One end of spiral propeller 4 stretches out the outer bucket of auger, and is connected with an end of belt pulley 7, and the other end of belt pulley 7 connects electrical motor 8, and electrical motor is fixed on the support; Feeder hopper 6 is located on the transmission auger, is connected as a single entity with the outer bucket 5 of auger; The described system of connecting material comprises receiving hopper 3 and packaging bag 1, and receiving hopper is connected with packaging bag through sensor 2, and is fixed on the support 9.
As shown in Figure 2, the blade radius size of spiral propeller 4 along the discharging opening direction by equidistant to dwindling gradually, promptly the rotation profile of spiral propeller is the combination of cylinder and Rotary-table, dotted line is the blade rotating range among the figure.
Working process is: power-on, electrical motor provides power by belt pulley to spiral propeller, material enters the transmission auger from receiving hopper, through spiral propeller, at the uniform velocity enter receiving hopper, the computer expert crosses when the weight of material of sensor control transmission auger in packaging bag reaches setting value and stops operating, when material stops to carry, the weight of material is setting value just in the bag, comprise the material that is falling in this process in the air, because material at the uniform velocity enters receiving hopper, therefore, avoid random error, improved quantitative packing precision.
The utility model can be widely used in the quantitative packing of various powderies or granular material.