The weighing adjustment device of the A076A winding machine is installed at the feeding point of the integrated beater on the winding machine to control uniform feeding and ensure that the cotton rolls meet quality requirements. As shown in Figure 2-32, the weighing roller 1 below the opening machine has 16 parallel weighing rods 2. The position of the weighing roller is fixed, while the weighing cam can pivot around the blade bar 3. As the cotton layer passes through the weighing roller and weighing rod, if the layer is too thick, the upper end of the weighing cam is forced to drop, while the lower end rises. This movement is transmitted through linkages 4, 5 and the main linkage (also known as the hook block) 6, lifting the balancing lever 7 with point 8 as the pivot. Simultaneously, the adjustment screw rod 10 connected to the left end of the balancing lever rises, and through the double arm lever 11 (pivot 12) and the connecting rod 13, the cannon belt fork 14 is shifted to the right, and the cannon belt 15 moves towards the smaller end of the active cannon 16, i.e., towards the larger end of the passive cannon 17.

Due to the constant speed of the active cannon, the passive cannon is driven by the active cannon's transmission, which is further transmitted to the balance roller and the subsequent cotton feeding mechanism via worm 18, gear 19, and gear 20. Therefore, moving the cannon belt towards the small end of the active cannon slows down the speed of the balance roller or the cotton feeding speed; when the cotton layer is thick, the feeding speed is reduced. Conversely, when the cotton layer becomes thinner, the weight of the balance rod itself, as well as the action of the balancing weight 9, causes the upper end of the balance rod to rise, and the left end of the balancing lever to descend. This moves the cannon belt to the left, increasing the speed of the balance roller, thus accelerating the cotton feeding speed.

It can be seen from the aforementioned that the principle of the balance adjustment device is to regulate the feeding speed of cotton based on the changes in the thickness of the cotton layer, ensuring that the amount of cotton fed per unit time maintains a certain relationship as follows:

2. The炮机 cannon shape curves are designed to ensure a consistent length of the cannon belt and maintain uniform tension at any position along the cannon. The sum of the radii of the active and passive cannons should be such that when the cotton layer thickness is at the standard average thickness ho, the belt should be positioned at the cannon's location, as shown in Figure 2-33. Assuming the active cannon rotates at speed no, with the driving radii being ro, ri, and Ro, and the passive cannon outputs a cotton layer length of Co per revolution, the linear velocity of the balance roller should be an isochronous hyperbola.

In the above equation, a suitable shape curve for the cannon can be obtained by determining the appropriate conditions. The shape of the active cannon is derived by rotating the curve segment ab around the Z-axis, while the shape of the passive cannon is obtained by rotating the same arc segment around a parallel line cd, which is K units away from the Z-axis.