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A common problem of sanding machine


                                                                                   To grasp the method of sanding machine adjustment, timely handling common fault sanding machine, correct analysis of sand plate from the defect and the sanding machine can run normally and sand cut qualified slab 1. The adjustment of the sanding machine 1. 1 grinding allocation because of man-made board production scale expands unceasingly, at present USES mostly sand light with 2 or 3 sets of sanding units of form, namely the '2 + 4', '4 + 4' or '2 + 4 + 4' combination, sanding is divided into 3, 4, 5. Adopting the combination form of the multichannel grinding must be correctly allocated each sand grinding amount of light. ( 1) Grinding amount distribution premise right amount, should first determine the following premises: 1) grinding amount; (2) the sanding machine sanding number; (3) sand with grain size distribution, especially the last line of abrasive belt granularity. ( 2) Grinding allocation principles (1) make full use of coarse and fine, fine sand with characteristics of appropriate allocation of grinding amount, usually the amount of grinding fine grinding, fine grinding can be identified in advance, coarse sand depending on the actual situation; (2) the amount of fine sand and fine sand quantity too small, must be able to remove on a sand. (3) on the surface of the best grinding, make the electricity at the same time, abrasive belt cost minimum. ( 3) Grinding amount hindcasting commonly used distribution grinding amount. To determine a final grinding quantity, and then determine the final of the second grinding, finally determine the first grinding amount. Example: the company adopts the '4 + 4' sanding combination ( See figure 1) , according to the market demands for surface quality, and finally to require the use of 150 # abrasive belt, the total amount of grinding to 2. 2 ~ 2. 8mm。 According to the above conditions, first choose abrasive belt is 40 #, 80 #, 120 #, 150 #, then choose the fifth grinding amount to zero. 15mm( Double sided, sand mold frame grinding pad) And the third grinding amount to zero. 5mm。 The rest of the 1 ~ 1. For the first 6 mm grinding amount. ( 4) Grinding allocation operation with the method of one way operation, first of all, according to the distribution of grinding, determine each sanding finished thickness size. According to determine the thickness of size, sand the first first, after a few abrasive belt when removed. After the first line of sand plate thickness size meet the requirements, put on the first line of abrasive belt grinding, the second but thick size. By analogy, until a final size meets the requirements. Generally when determining each size, sand at least two plate conform to the requirements of the size, can determine the sanding has adjusted correctly. 150 # 120 # 0. 15mm 0. 15mm 0. 4毫米的0。 5毫米1 ~ 1。 6毫米( 5) Improper grinding allocation problems: (1) coarse sand grinding amount is too small, will increase the burden of fine sand and fine sand, make the fine, fine sand belt consumption increased, at the same time can not make full use of function of coarse sand, fell, feeding speed affect the production efficiency. (2) the way too much grinding, before or after grinding quantity is too little, can cause intensive mode to the corrugated ( Is actually from the transverse corrugated unsolved, and at the same time, after two transverse corrugated overlapping) The lower surface roughness. Visible, correct grinding amount allocation, not only can improve the quality of the plate, but also can save the abrasive belt, reducing energy consumption, improve production efficiency. It is worth noting that using the above method after the adjustment, should do according to the actual situation in the process of using appropriate micro-adjustment, because of the grinding process is not variables: wear abrasive belt, grinding pad wear, density and hardness of the plate in the change. How to fine-tune, need to accumulate experience, through the mechanical properties of each device. According to the above method after the adjustment, after generally don't need to do a big adjustment, even in the transformation of the specifications of the slab also don't need to do big adjustment, but for the eccentric wheel, grinding pad location should be record and avoid some wrong operation and cause needs to be adjusted. 1. 2 sanding machine adjustment to achieve sanding machine grinding amount allocation right, it must adjust sanding machine. Sander adjustment generally adopts the frame base principle, namely the first adjustment under the frame, then the following frame as a benchmark to adjust on the rack. Harder to adjust the frame must be raised on the rack, fine article adopts flat feet and type level adjustment, time is longer. After adjusting the next frame, so users should remain under the frame, make the necessary notation, it will greatly save time. Usually machine before delivery, has been basically finished adjustment, debugging personnel at the scene can be fine-tuning, but the users to use for a period of time or change the other main parts, will be a wide range of adjustment. So maintenance personnel must master the adjustment method. The preparing work before 1, adjust a, ready to two feeler, a length greater than 1. The ruler of 5 m ( Flat feet and flatness and parallelism should be less than 0. 02mm) Mirror, a bar type level, and a number of wrench. B, rises on the frame, and safety insurance. C, according to the scheme of grinding quantity distribution, determine the adjustment requirements. D, the sand roll eccentric pointer is 0.                                                                            

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