Testing machine for mattress durability
Technical field
The present invention relates to a kind of durability test machine of checking mattress to long term repeatability load ability to bear, belong to commodity detection, experimental technique field.
Background technology
Durability test machine commonly used at present is according to QB/T 1952.2-1999 " spring mattress pad " standard operation.But act.std QB/T 1952.2-2004 " software furniture spring mattress pad " has carried out bigger change on original standard, the number of times of durable classification test is by the unified regulation of having done, traditional testing machine can not satisfy the demands mostly, have following technological deficiency or deficiency when detecting commodity: 1, existing durability-testing machines is many makes the output device of test findings with PLC etc., can't the desired Interventions Requested of complete documentation newest standards; Though 2, present most durability test machine has also adopted some pneumatic elements, but still is semiautomatic equipment, does not belong to full-automatic testing machine, can't finish automatic transposition, need manually-operated, inefficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of testing machine for mattress durability, the automatically endurance quality of detection springs mattress pad, and record, the every detection data of output.
The present invention is achieved through the following technical solutions: testing machine for mattress durability, comprise monitor station, crossbeam, charger, solenoid valve, stand on the monitor station crossbeam is arranged, be fixed with charger on the crossbeam, it is characterized in that also comprising control device, pick-up unit, test specimen position adjustment cylinder, wherein monitor station is provided with the test specimen position and adjusts cylinder, and control device connects charger, and charger is connected with pick-up unit.
A kind of testing machine for mattress durability according to claim 1, it is characterized in that described pick-up unit is fixed on the nethermost fixed head of charger, contact with test specimen by circular cushion block, change displacement by motor-driven, the displacement meter Displacement Measurement, strength sensor control applies the size of strength.
A kind of testing machine for mattress durability according to claim 1 is characterized in that described control device adjusts the loading frequency of loading blocks by solenoid control cylinder operation frequency.
The invention has the beneficial effects as follows: the present invention not only can be used for assessing the permanance of mattress, and the elastic bodys such as spring, foam that can be used for seat, sofa etc. are through the reciprocal resisting fatigue stress after the pressurization and the surface abrasion resistance ability of decreasing of certain number of times, can whole-process automatic finish the mattress test and do elasticity test, the elasticity test data can be gathered automatically, be exported, operation is succinct, save manpower, measure accurately.
Description of drawings
Fig. 1 is the structural representation of testing machine for mattress durability of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail:
With reference to Fig. 1, a kind of testing machine for mattress durability comprises control device, monitor station 1, charger, pick-up unit, wherein, upright on the monitor station 1 have steel construction crossbeam 2, is fixed with charger on the crossbeam 2, control device connects charger, and charger and pick-up unit link.
Three directions respectively are provided with two test specimen positions and adjust the position that cylinder 13 is used to regulate test specimen on monitor station 1 table top.In charger, fixed leg 3 is fixed on the crossbeam 2 by pneumatic gripping 4, and the starting altitude of loading blocks 5 is regulated by d.c. motor 7 by screw rod 6, and drives the realization freely falling body by tested cylinder 8.Regulate the loading frequency of loading blocks 5 by control device, solenoid valve (not shown) control tested cylinder 8 frequency of operation.Pick-up unit 9 is fixed on the nethermost fixed head of charger, contacts with test specimen by circular cushion block 10, and motor 14 drives, and changes its displacement by guidepost 15 tractions, and displacement meter 11 is surveyed its displacement, and it applies the size of strength strength sensor 12 controls.
Before the experiment, test specimen is placed on the monitor station 1, adjust the position of adjustment cylinder 13 in test specimen position on the monitor station according to the test specimen size, and then the position of adjustment test specimen, test specimen is fixed on the below of charger, with anchor clamps (not shown) test specimen is clamped, start d.c. motor 7, drive loading blocks 5 by screw rod 6, regulate its starting altitude, tested cylinder 8 drives loading blocks, control its freely falling body height, loading frequency, loading blocks 5 is done the movement of falling object repeatedly, reach stipulated number after, the position that cylinder 13 is adjusted test specimens is adjusted in the test specimen position, and automatically to its transposition, automatically finish detection, record pad face height, decrement, loading frequency, load test figures such as number of times, power output--time test curve, displacement-time curve, power-displacement measurement curve, experimental test-time curve, whether conformance with standard is stipulated to detect the different phase mattress.
The present invention adjusts all adjustment behind the position of adjusting cylinder, detects step by computer controlled automatic after test specimen is positioned over monitor station.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.