SU982979A1 - Apparatus for emptying bags with loose material - Google Patents

Description

(54) DEVICE FOR EXPANSION. MESHKOV S. BULK MATERIAL

The invention relates to the mechanization of the process of unpacking bulk materials and can be used in the food and chemical industry. A device for dust-free unloading of paper bags, inclusive chambers with inclined roller table, a knife for cutting bags with a pneumatic cylinder, a lifting device with vacuum grippers 13 is known. However, this device has a low productivity. A device for unpacking bags with contact material is known, comprising a housing, a vibrating screen located at its bottom, a hoisting mechanism mounted above it, anchoring devices for moving the bags and collecting empty bags 12 above. However, this device does not provide bagless unpacking. The purpose of the invention is to improve the reliability of the bag and ensure that it is dust free. To achieve the set in the device for unpacking bags with bulk material, comprising a housing, a vibrating screen located in its bottom, a cutting mechanism mounted above it, an accessory secured in the housing, and for collecting empty bags, a device for moving bags consists of a spring-loaded forks on the shaft and a ratchet mechanism, which is located on the wall of the case, and the device for collecting empty bags is a trellis camera. FIG. 1 shows the unstripping device, general view; in fig. 2 - the same, longitudinal section; in fig. 3 shows the resolution A-A in FIG. one; in fig. 4 — node I in FIG. 2; in fig. 5 is a view. B in FIG. 4. The device consists of the case 1 with the receiving table 2, the manhole cover 3 with the lattice chamber 4, the vibrating screen 5 with the rear axle and suspension 6, the forked gripper 7 with the hollow shaft 8 and the spring 9, the shaking device 1O ratchet wheel 11, dog 12, stop 13, spring 14. The drive of the vibrating screen 5 is the gearmotor 15. The drive system of the fork 7 includes a gear motor 16, a crank-gear mechanism 17 containing a crank 18, a rack 19, a gear wheel 2O, a clip 21. In the upper part of the housing 1 is located the top of 22 for aspira onnogo suction at the bottom - the discharge opening 23. The cutting mechanism 24 is composed of longitudinal and transverse knives 25 forming the cross-shaped slotted design. Case 1 is equipped with a sealing cap 26, in addition, it is equipped with warning lights red 27, green 28 and limit switches 29 and 30. The device operates as follows. The paper bag with the material for unloading in dust-free conditions is fed to the receiving table 2 (by conveyor or manually) and pushed through the receiving port 31 into the housing 1. Under the effect of gravity, the bag gets onto the cutting mechanism and is cut in the lower part by knives 24 and 25 forming cross-shaped incisions, which contributes to a more free release of material from the bag. When fed into the body 1 bag, the latter lifts the cover 26, which, n .... The final press on the switch turns on the actuator 15 of the vibrating screen 5, the latter oscillates together with the cutting mechanism, the oscillations of which contribute to the penetration of the blades 24 and 25 into the material and its disintegration, if the material in the bags is cracked. In this case, the signal light is green then the color 28 goes out (it lights up when power is applied to the unit) and the light 27 of the red light turns on, which means - There is a bag in the chamber. In parallel, the switch 29 through the time relay (with a power supply of 10-15 s) turns on the actuator 16 of the gripper 7, i.e. 10-15 seconds after the vibrating screen 5 with the blades 24 and 25 is turned on, the fork gripper 7 moves, removing the empty bag from the cutting mechanism and moving it to the trellis chamber. The drive shaft 32 transmits rotation through the spring 9 to the hollow shaft 8, on which the forks 7 and the ratchet wheel 11 of the shaking device 10 are rigidly fixed. At the same time, due to slippage with the resistance of the teeth of the wheel 11 through the dog 12, the clamps 7 receive a page motion when moving and inform it of the bag hanging on the grips, facilitating its emptying of residual material. After the fork 7 is rotated by 180 °, the bag is moved from it to chamber 4, and the gripper 7 itself begins to move in the opposite direction; -the direction due to the kinematics of the crank hook mechanism 17. At the same time, the ratchet wheel 11 pushes the spring-loaded dog 12 and the grippers 7 freely without The shaking returns to its original position. At the end of its stroke, the toothing pin 19 presses the limit switch 30 and stops the power supply to the actuators 15 and 16, the red light 27 goes out and the green 28 lights up, indicating that the cycle arivani ended yet and the device is ready to receive the next bag with the material. As the empty bags accumulate in the chamber 4, the lid 3 opens and the chamber 4 together with the bags comes out of the housing 1. The proposed device for unloading is more economical than the existing ones, since the seal is sealed, the chamber 1 only briefly briefly. the moment when the bag slips through the access hatch, with D ™ limiting the dust emissions of the MTP -rvMfT t. YVi-xr rv (irtQ rT r4TYT.Ti KXYTTTTTk i (Q rr from the receiving hatch is sufficient to minimize the discharge of the aspiration system (a few millimeters of water column), which in turn will lead to less dust in the aspiration system and require minimal resources Formula. The invention does not include a device for unstitching bags of bulk material, comprising a housing, a vibrating screen located in its bottom, a cutting mechanism mounted above it, fixed in the housing of a device for moving bags and collecting empty bags. Characterized in that, in order to increase the reliability and provide a dust-free unloader, a device for moving the bags consists of fixed on the shaft and spring-loaded fork ratchet pawl is located on the wall of the housing, and means for collecting oporozh59829796

The bags are sieve-1. USSR author's certificate

Chat Camera.N9 272885, CP. B 65 B 69/00. 1969.

Sources of information.2. USSR author's certificate

taken into account in the examination, № 241284. cl. In 65 In 69 / OO. 1967.

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Claims (1)

Claim A device for unloading bags with bulk material, comprising a housing located in its bottom a vibrating screen, a cutting mechanism mounted above it, devices for moving bags and collecting emptied bags mounted in the housing, characterized in that, in order to increase reliability and ensure dust-free unloading , the device for moving the bags consists of a spring-loaded fork and a ratchet mechanism mounted on the shaft, the dog of which is located on the wall of the housing, and the device for to collect emptying 982979 6 valuable bags is a trellis chamber.