Solutions to common failures of automatic packaging machines in commercial animal feed mill plants

1. Partial failure of film guide groove

The film can not bite into the upper pillow packaging machine heat roller, or leave the heat roller or the ends are not aligned.

Reason ①: The center of the film, guide groove, vertical sealing roller and horizontal sealing roller are not in a straight line.

Reason ②: The film guide groove is too inclined.

Reason ③: The speed of the eccentric sprocket of the horizontal sealing heat roller is abnormal.

Adjustment method①: Rotate the upper adjustment knob of the vertical sealing pillow packaging machine to the right, increase the pressure, and the film thickness will be stretched. It should be noted that if it is stretched too much, it cannot be sealed.

Adjustment method ②: Reduce the pressure of the longitudinal heat sealing roller. If the pressure is too high, the film cannot be clamped in, and it may be extruded.

Adjustment method ③: The vertical sealing roller clamps more than usual. Generally, it should clamp 10MM at 7MM.

Adjustment method ④: If the two ends are still uneven by the above adjustment of the pillow packaging machine, bend the guide groove on the side of the film to bend inward.

Adjustment method ⑤: There is an error in the center line of the film guide groove, and it should be replaced if it is defective.

2. Failure of the cutter position: unable to cut the film

Reason ①: The gap between the movable knife and the fixed knife is not adjusted properly.

Adjustment method: There are two short tension screws on the outside of the fixed knife, and two long compression screws on the outside of the fixed knife. When the blade of the movable knife is close to the fixed knife, the film is cut by the sharpening of the two knives. The gap between the blades of the two pillow packaging machine is preferably 1/100MM. When adjusting, the film is clamped and cut by hand while adjusting. When adjusting, the cutter clutch should be disengaged.

Reason ②: If the cutting blade is damaged, use oilstone to grind it, and use a grinder to repair it.

Cause ③: Poor installation of the cutter, poor clutch clutch of the cutter, and disconnection of the positioning key.

Solution: Check all parts carefully and tighten again.

3. Failure of the horizontal sealing heat roller: poor sealing

Cause: Poor thermal regulation, insufficient or uneven pressure of the push spring.

Adjustment method: The appropriate pressure and temperature should be selected according to the thickness and type of packaging materials used. If the sealing temperature is too high, the seal will be white, and the packaging film at the seal will be easy to peel off. The pressure of each heat sealing roller is The temperature of the roller is adjusted by the push spring, and the temperature of the roller is controlled by the temperature controller to control the heating rod temperature. There are pressure adjustment buttons on the left and right of the horizontal sealing roller, and each adjustment button is composed of a push-pillow packaging machine button and a pull button. If only the push button is used, excessive pressure will be applied to the heat roller, which may cause poor sealing, so it should be appropriate Push buttons and pull buttons are used, and two adjustment buttons are provided on the horizontal sealing heat roller to prevent uneven lateral force for adjustment.

4. Failure of the turntable part:

(1) The packaged material is mixed into the heat-sealed part.

Reason ①: The bagging time and the heat sealing time are inconsistent.

Solution: the double gear connected with the turntable gear, push the double gear upwards to change the meshing so that the material does not fall during sealing. The ideal blanking time is to pack the particles into the bag after the transverse sealing is completed Don't change it easily after proper adjustment.

Reason ②: The packaging speed is too fast, and the material will fall for a long time, so reduce the packaging speed appropriately.

(2) The cutting time has been adjusted and it is abnormal again.

Cause: The turntable is poorly fixed, the keys and fixing screws are loose, or the fixing position is incorrect, and the shutter in the turntable is not properly opened and closed.

Repair and adjustment: Fix the turntable in the correct position of the pillow packaging machine, and re-fix the keys and screws. After adjusting the opening and closing mechanism of the shutter to the correct position, fix the shutter. In addition, when filling powders with very small particles or mixtures with extremely different specific gravities, bagging takes a long time, which causes the powder particles to bite into the sealing part. At this time, the packaging speed should be slowed down to make the number of revolutions. To be suitable for the performance of the material being packaged.

5. Electrical part failure

(1) The heat-sealing roller current is too large or the fuse is blown

Cause: There is a short circuit in the electric heater or a short circuit in the heat-sealed circuit.

(2) The heat sealing roller is not hot

Reason: ①The heating wire is blown, ②The fuse is blown, ③The temperature control is faulty. At this time, different temperatures are set, and the traffic lights do not jump.

(3) The temperature cannot be controlled automatically, and the temperature is too high

Reason ①: The thermocouple is in poor contact with the roller or is damaged.

Cause ②: There is a fault inside the temperature controller.

(4) Optoelectronic position non-pillow packaging machine standard

Reason ①: The fuse of the controller is broken, or there is an internal fault.

Reason ②: The packaging paper is not installed properly, so that the bidding center does not pass through the center of the photoelectric head aperture.

Reason ③: There is dirt on the photoelectric head.

Reason ④: The sensitivity knob is not adjusted properly.

6. Failure of the organization itself

(1) Some institutions cannot be activated:

Reason ①: The motor and wiring are broken: connect the broken wire, if the motor is faulty, replace the motor.

Reason ②: The fuse is blown: replace the fuse with equivalent ampere value.

Reason ③: The connecting screws and keys of the gear are loose: Re-tighten the loose screws and keys, starting from the motor, and checking in the order of transmission.

Reason ④: The foreign matter falls into the gear and other rotating parts. At this time, the motor produces abnormal noise. If it is not handled in time, the motor is easy to burn. Remove the foreign matter.

Reason ⑤: The foreign matter falls into the cutter of the pillow-type packaging machine, and the two blades are too tightly matched: Take out the foreign matter. When the two blades are matched too tightly, the gap should be increased appropriately.

(2) The horizontal sealing heat roller does not rotate

Reason: The bearing part of the hot roller is not filled with oil, causing burnout and locking, and the gear fixing lock ring and key are disengaged: oil should be injected into the hot roller, and the gear fixing ring and key should be tightened again.

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Advantages：

The reasonable feeding structure ensures smooth flowing of materials.

All parameters can be input by the panel.

Automatic control of fast/slow feeding, bag clamping and loosening.

Gross weight and net weight displayed at the same time by the intelligent weighing meter.

Remove tare weight automatically.

Check and amend weighing error automatically.

Accumulated bag number display.

Equipped with air suction port to control dust and improve the working condition.