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Dongguan Lituo Testing instruments Co., Ltd

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LT-JJ29-C Computerized gb mattress rolling, hardness, height test Machine

Keywords :

Mattress inspection instruement / hardness testing machine / impact test equipment


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  • Company : Dongguan Lituo Testing instruments Co., Ltd
  • Telephone : +86 137 9011 5684
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Product Details

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Five Advantages Of Products

  • The equipment meets three test methods: pavement rolling durability test, soft hardness test and pad height test
  • Fully automatic test results can be achieved by PLC control, and two test modes are fully automatic operation and manual control with one key
  • The mechanical structure of gantry is adopted in the rolling durability test of the pavement, with the high-thrust servo motor and high-precision heavy-duty linear guide rail as the driving parts; Need to use famous brand touch screen as input control, make the operation control more humanized and concise
  • The roller loading of pavement durability test adopts linear sliding bearing for free loading; In the durability test, the loading block and linear sliding bearing are used for free loading, because only linear bearing rolling friction exists, so the accuracy of loading force can be guaranteed. Therefore, the loading force is more in line with the standard requirements
  • Test pad height test the servo motor is used as the drive to test at the speed specified in the standard, display the curve graph between the force value pressurized by the loading pad on the specimen and the corresponding sag value, and automatically measure the height

Product Details

LT-JJ29-C 国标床垫滚压、软硬度、测高试验机(滚压+软硬度+测高)电脑.jpg

LT-JJ29-C Computerized gb mattress rolling, hardness, height test Machine inspection (rolling + hardness + height measurement)

 

The product description

National standard comprehensive tester is a machine designed to simulate the continuous rolling of human sleep. Rolling the durability adopts a rolling loading module placed in the horizontal mattress loading position, rolling at a certain frequency to carry out reciprocating loading on the mattress, so as to test the mattress's bearing capacity for long-term repetitive rolling load. The paving soft hard test is to test the hardness of mattress, which meets the requirements of all kinds of mattress manufacturer and standard. It is used to judge the quality and service life of the mattress and strictly complies with the requirements of the national standard for mechanical testing. Suitable for strong spring mattress, ordinary spring mattress, foam mattress, brown fiber elastic mattress.

 

Technical parameters

1. Control mode: computer control

2. Pavement durability test device:

1) mechanical device that can drive the roller to make relative horizontal movement on the surface of the mattress: the rotating moment of inertia of the roller is (0.5±0.05) Kgm2, the loading frequency should be (16±2) times /min, the static load should be (1400±7) N, and the test times are > 30000 times.

2) roller: oval shape, external dimension tolerance is ±2mm, the surface should be hard, smooth, without scratches or other surface defects, length (1000±2) mm, friction coefficient between (0.2 ~ 0.5), chamfer Angle of roller: R30, maximum diameter of roller: 300±1mm;

3) motor: Panasonic servo motor of Japan;

4) test trip: about 250mm of the center line of the mattress;

5) the accuracy of the force measuring device shall not be less than 1%, the accuracy of the size device shall not be less than 1mm, and the position deviation of the loading block shall be ±5mm.

3. Height measuring device:

1) height measurement accuracy: ±0.5mm;

2) height measuring pad: the measuring surface is a flat and smooth rigid cylinder;

3) diameter of measuring pad: 100mm, chamfer R10;

4) application speed of the pad: 100±20mm/min;

5) vertical downward force: apply 4N force, then the distance between the surface below the surface of the circular pad and the plate is the height of the mattress pad; Measuring height: the height of the initial mattress surface, 100 times, 29,900 times of endurance test, respectively measuring the height of the mattress surface; Altimeter system: force value is set by software, force is applied vertically downward in the way of setting speed, and it is directly linked to PLC touch screen.

4. Hardness test device:

1) loading pad: a rigid cylinder with a smooth surface and a diameter of 355mm, whose end face is a convex sphere with a radius of curvature of 800mm and a radius of curvature of its front edge of 20mm;   

2) loading capacity: 1000N;   

3) running speed during loading and unloading :(90±5) mm/min, the system can reach any setting of 0.01-200mm/min;

4) loading deflection curve: the relationship between the force pressurized by the loading pad on the specimen and the corresponding sag value;

5) the hardness value (Hy) of the mattress is the average value of the slope (ratio of loading force N to sag depth mm) of the loading deflection curve at 210N, 275N and 340N;   

6) hardness grade: the hardness of the product is expressed in the range of 1 to 10; Hs=1 ~ 5 are hard mattresses (the smaller the number, the harder it is); Hs=6 ~ 10 is soft mattress (the larger the number, the softer it is);

5.Appearance: the main frame is made of advanced industrial aluminum. Each column and two aluminum materials are superposition, and the connection part is sheet metal baking. The driving device of the machine is on the top of the machine, the gantry is fixed and fixed. It is loaded on the four aluminum engine columns on the top of the machine, stable and silent.

6.Test table material: base with advanced industrial aluminum profile, table with Stainless steel 304;

7. Height of test table from ground: 180mm

8. External dimensions: 3320*2400*2280mm (length * width * height)

9. Weight: about 2.3 tons

10. Power supply and power: AC220V 50HZ single-phase about 2KW

11. It can be used to test the maximum sample range of a single mattress: 2400mm×2400mm×440mm

12. Operating system: one set of manual system and one set of automatic system.

13. Hard and soft display: Numbers and words

15. Program screen can choose simplified Chinese, traditional Chinese, English.

16.Force and displacement velocity can be controlled to display displacement and time, force - displacement maximum and minimum force and life curve (in each cycle Change curves of maximum force and maximum displacement of each channel.

17. KGF, LBF, KN, N are available for strength units.

18. Each force and displacement sensor can be calibrated in 10 segments or in a single segment.

19. The report can be output into Word, Excel and PDF.

20. The test curve data will be recorded in the database. When the program does not run the test, the display curve can be called from the database.

21. Position the middle point of the rolling test, automatically find the middle point of the mattress, without manual re positioning.

 

Conform to the standard

The instrument conforms to GB/T 26706-2011 "soft furniture brown fiber elastic mattress"; QB/T 1952.2-2011 "soft furniture spring soft mattress", BS EN 1957:2012 requirements for mechanical testing.




Dongguan Lituo Testing instruments Co., Ltd

Contact Person: Vicky Teng

Department: Sales

Telephone: +86 137 9011 5684

Landline: +86-0769-81551929

Company Address: No. 117, Longyan 5th Road, Humen Town, Dongguan,Guangdong,China

Factory Address: No. 117, Longyan 5th Road, Humen Town, Dongguan,Guangdong,China

Website: www.lttestmachine.com

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