introduction: [Abstract]The paper introduces the applicationPLCThe design method and realization process of transforming the control system of the four-link packaging machine are discussed。The actual transformation example shows,adoptPLCControls,The control reliability of four-link packaging machine is improved,Improve the economic benefits of enterprises。 [keyword]PLC、Solenoid valve、Relay unit、Frequency changer。 1.introduction The four-link packing machine is one that can hold four boxes at a time(Can be carton)both4*
2015-01-22 Reading quantity 2947
introduction:Mold core design and CNC machining are the core links of mold processing production。Mold core processing is generally a single production。A complex core processing,Often need to use a variety of modern processing means。This paper takes the numerical control machining of injection mold core and copper electrode of a mobile phone shell as an example,The application is described in some detailMasterCAMSoftware for the plastic mold core CNC processing process and steps。The article is more concise,A combination of pictures and illustrations,It has certain reference value。 In modern mold production,With the improvement of the functional requirements for plastic parts,The internal structure of the plastic parts also becomes more and more
2015-01-22 Reading quantity 2837
introduction:Outer spherical bearing[bearing:bearing(“Bearing”,Japanese person“Axial receptor”)It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said,When other parts move relative to each other on the shaft,A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]One revolution、Raceway surface of inner ring and outer ring,Due to the rolling contact with the rolling element,Therefore, the trajectory is dark,The running track attached to the raceway surface is not abnormal,The load conditions are thus known,So in disassemblyTIMKENBearing time,Please pay close attention and observe the raceway
2015-01-22 Reading quantity 1571
introduction:Gear reducer power is a rating of the total mechanical power of all stationary and rotating parts in a closed drive.The minimum calculated part power of a closed drivePme(The weakest part can be the same tooth,shaft,bolt,Box equalization)Determines the power of the gearbox in200%Cycle under load10000time,Add to100%Operation under load10000hDetermine the power of the gear reducer under the conditions.The gearbox power shall also include the effect of the allowable cantilever load at a specified distance from the gearbox to the cantilever load acting end. When determining the power of the gearbox,Use unit selection factor
2015-01-22 Reading quantity 2920
introduction:bearing[bearing:bearing(“Bearing”,Japanese person“Axial receptor”)It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said,When other parts move relative to each other on the shaft,A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Hot in operation Following questions,Fyi (FYI): 1、The preload is too large,Reduced clearance; 2、The selection of lubricating oil or grease is not reasonable,Whether the lubrication system configuration is reasonable,Poor heat dissipation; 3、What is the temperature reached,Whether it is within the permissible range; 4、bearing
2015-01-22 Reading quantity 1451
introduction:In-line bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing,ikobearing,fagbearing,Of good quality,Of course, the price is not cheap。]When turning,Imported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing,ikobearing,fagbearing,Of good quality,Of course, the price is not cheap。]The raceway surface of the inner ring and the outer ring is in rolling contact with the rolling body,Therefore, the trajectory is dark,Running track attachment
2015-01-22 Reading quantity 1554
introduction:Rolling bearing[bearing:bearing(“Bearing”,Japanese person“Axial receptor”)It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said,When other parts move relative to each other on the shaft,A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Precision parts,Therefore, it is required to be cautious when using,High performance bearings are used,If used improperly,Nor can it achieve the expected performance effect,therefore,Using Schaeffler bearings should pay attention to the following matters: Keep bearings and their surroundings clean。namely
2015-01-22 Reading quantity 1552
introduction:1.Cleaning and pickling passivation after cutting The surface of stainless steel workpiece is usually left with iron filings after cutting、Steel dust and cooling emulsion and other dirt,It will stain and rust the surface of stainless steel,Therefore, degreasing and oil removal should be done,Wash with nitric acid,Both iron filings and steel dust are removed,And passivated it。 2.Cleaning and pickling passivation before and after welding Because grease is the source of hydrogen,Air pressure builds up in welds that are not cleared of grease,And low melting point metal pollution(Like zinc-rich paint)Cracking may occur after welding,Therefore, stainless steel must be welded before the groove and both sides20mmClean the inside surface,Acetone for oil pollution
2015-01-21 Reading quantity 1563
introduction:Main use This machine is all stainless steel horizontal trough mixer,In the pharmacy、Chemical engineering、A material used in the food industry to mix powders or pastes。 Working principle The machine is driven by machinery,makeSType mixing slurry rotation,Push the material back and forth,Uniform mixing,The operation is electrically controlled,Mixing time can be set,Automatic shutdown,Thus improving the mixing quality of each batch of materials。 Model number CH-50 CH-100
2015-01-21 Reading quantity 2752
introduction:The location of the gate has a direct effect on the quality of the plastic,When determining the location of the gate,The following points should be considered:When the melt flows in the cavity,The kinetic energy loss is minimal,To do this must be made A flow(Inclusive shunt)Be the shortest; BEach stream reaches its farthest point at roughly the same time; CFeed from the thicker part of the wall first; DConsider the diversion of each strand as small as possible;Effectively expel the gas from the cavity.If there is a core with forming holes in the cavity,The gate should avoid impacting the small core,And the pressure loss of the melt should be taken into account.If the cavity has metal inserts,Gate should be kept away
2015-01-21 Reading quantity 2810