GH/T 1274-2019Cup type juice extractor for industry (English PDF)

4.1 Model

The model of the juicer should consider the special material of the product, and the product name code should comply with the provisions of GB/T 7311.

It is composed of three parts. first (first), auxiliary name (second) and improved sequence (third). Among them, the main product name the title code is represented by "CZ", the auxiliary name code is represented by the number of cup press stations, and the improved sequence code is represented by A, B, C (A can be omitted).

Its model compilation form is as follows.

Improved serial number Cup pressing station Product main code name. Industrial Cup Juicer

4.2 Basic parameters

See Table 1 for the basic parameters of the juicer.

Table 1 Basic parameters

Name parameter

Number of stations, 5 8 Cup size, mm 60.325 or 76.2 or 101.6 50.8 Production capacity, pcs/min Orange, tangerine. >=400 Pomelo. >=250 Orange, tangerine. >=640 Granularity range, mm 0.8-3 Normal working noise, dB (A) <=80 Rated voltage, V 380 Mean time between failures, h >=450

5.1 General requirements

5.1.1 The juicer shall comply with the requirements of this standard and be manufactured through technical documents approved by prescribed procedures.

5.1.2 The choice of material for the juicer and the safety and health of the equipment structure shall meet the requirements of GB 16798 and GB/T 19891.

5.1.3 The juicer shall meet the requirements of SB/T 222, and meet the requirements of strength, stiffness and service stability.

5.1.4 The technical requirements for the mechanical processing of the components of the juicer shall comply with the provisions of SB/T 223.

5.1.5 The technical requirements for the assembly of the juicer shall comply with the provisions of SB/T 224. The moving parts shall be flexible and free from jamming.

5.1.6 The technical requirements of the casting of the juicer shall meet the requirements of SB/T 225.

5.1.7 The welding technology requirements of the juicer shall comply with the provisions of SB/T 226, and the welding parts shall be firm, reliable and smooth.

5.1.8 The connection of the components of the juicer should be reliable, and the removal and installation of the components should be convenient and easy to clean.

5.1.9 The lubricating part of the juicer should be lubricated reliably and there should be no oil leakage. The lubricating oil should meet the requirements of GB 15179.

5.1.10 The raw materials used in the juicer and outsourced supporting parts and components shall meet the requirements for use, and a quality certificate of the manufacturer shall be obtained, otherwise, it can be put into use only after it has passed the acceptance according to the relevant standards of the product.

5.1.11 The pneumatic system of the juicer shall meet the requirements of GB/T 786.1 and GB/T 7932. The air circuit connection of the pneumatic system should be closed without leakage Phenomenon; the action of the pneumatic actuator should be correct, and the safety protection should be reliable.

5.1.12 The juicer piping system shall meet the requirements of GB/T 20801.1, and there shall be no leakage.

5.2 Appearance quality requirements

5.2.1 The appearance of the juicer should be neat and smooth, and there should be no obvious mechanical damage and sharp corners and edges that are easy to cause harm to the human body.

Defects such as obvious protrusions, depressions, bumps, scratches, rust, etc. not specified in the drawing.

5.2.2 The paint film of the juicer should be flat and smooth; the coating of the same color should have no obvious color difference; there should be no sagging, peeling, whitening, loss of light, Defects such as orange peel, scratches, and missing paint.

5.2.3 The welding seam of the juicer shall be smooth and flat; there shall be no residual welding slag, spatter and cracks.

5.2.4 The stainless steel outer protective plate of the juicer should be flat and free from defects such as stains and obvious scratches.

5.2.5 The exposed pipe of the juicer shall be smooth and free of residual liquid droplets.

5.3 Electrical safety requirements

5.3.1 The electrical safety of the juicer shall meet the requirements of GB 5226.1. The circuit control system should be safe, reliable, and accurate.

The connections are secure and numbered, and the wires should not be exposed. The operation buttons should be reliable, and there should be an emergency stop button, and the indicator light should be normal. The distribution box should be sealed, There should be no condensation in the distribution box.

5.3.2 The electrical safety of the juicer shall meet the requirements of 5.8 in GB 16798-1997. Wherein the insulation resistance should not be less than 1Mohm;

The resistance should not be greater than 0.1ohm; the withstand voltage test voltage is 1500 V, and there should be no breakdown or flicker.

5.3.3 The juicer should have obvious grounding signs and reliable grounding devices.

5.4 Safety protection requirements

5.4.1 The safety protection of the juicer shall comply with the provisions of JB 7233.

5.4.2 The safety protection of the juicer electromechanical control box and the electrical component shell installed on site shall comply with the provisions of GB/T 4208, and the protection level shall not be lower than IP54 requirements.

5.4.3 When an abnormal condition occurs in the juicer, it shall be able to give an alarm and stop operation immediately.

5.4.4 The juicer shall be provided with safety protection devices, in particular, shall prevent leakage.

5.4.5 The easy-to-fall parts of the juicer shall be provided with anti-loosening devices. The parts and fasteners such as bolts and nuts shall be reliably fixed and shall not be affected by vibration.

Loose and fall off.

5.4.6 Hard foreign matter enters the squeeze cup. The squeeze cup should have a pressure protection device and trigger an electrical protection device to stop the juicer to prevent squeezing.

The cup was severely damaged.

5.4.7 When the feeding mechanism is stuck, the juicer should have a protective device to stop the feeding mechanism to prevent the feeding mechanism from being damaged.

5.4.8 There should be warning signs at the parts that are likely to cause personal injury.

5.5 Performance requirements

5.5.1 The performance of the juicer complies with the requirements in Table 1.

5.5.2 The juice extractor should be able to separate the peel, fruit juice (including some pulp), kernels, and fruit oil of the fruit in one pressing process and output to different outlets.

5.5.3 The fruit juice (including some pulp) should not be mixed with peel and core.

5.5.4 After the squeezing cup is installed in place, it should slide smoothly during operation without mutual bite or impact.

5.5.5 There should be no leakage in the pump, oil, gas and water systems, and the valves should be flexible and reliable.

5.6 Dry running requirements

5.6.1 Each conveying department shall be stable, and the actions of each station shall be coordinated, correct and reliable.

5.6.2 The drive chain should run smoothly without abnormal vibrations and collision sounds, and without detachment or climbing.

5.6.3 Each control button and switch should be sensitive and reliable.

5.6.4 The action of the emergency stop switch shall be correct and reliable.

5.6.5 The vibration motor should work normally and its amplitude can be adjusted.

5.7 Temperature rise and noise

5.7.1 The temperature rise of the bearing shall not exceed 30 °C.

5.7.2 Noise should be no more than 80dB (A) during empty machine operation.

5.8 Hygiene requirements

5.8.1 Stainless steel and welding materials in direct contact with fruit juice shall meet the requirements of 4.3.1 and 4.3.5 in GB 16798-1997.

5.8.2 There should be no cleaning dead zone in the juicer.

5.8.3 The juice filter tube should be easy to remove after cleaning.

6.1 Test conditions

6.1.1 The test environment temperature is 5 ~ 25 °C, and the relative humidity is <=95%.

6.1.2 The altitude does not exceed 1000m.

6.1.3 The test material is sweet orange, which meets the requirements of second-class fruit and above in GB/T 12947-2008.

6.2 Appearance quality inspection

Visual inspection and hand inspection shall meet the requirements of 5.2 of this standard.

6.3 Material inspection

Inspection of the juicer material report and quality certificate shall comply with the provisions of 5.1.10 of this standard.

6.4 Parts manufacturing inspection

Inspection of the condition of the components of the juicer according to SB/T 223 shall comply with the provisions of 5.1.4 of this standard.

6.5 Assembly inspection

Check the assembly of the juicer in accordance with the provisions of SB/T 224, which shall meet the requirements of 5.1.5 of this standard.

6.6 Casting quality inspection

Check the assembly of the juicer according to the provisions of SB/T 225, and it shall meet the requirements of 5.1.6 of this standard.

6.7 Welding position inspection

Check the assembly of the juicer in accordance with the provisions of SB/T 226, which shall meet the requirements of 5.1.7 of this standard.

6.8 Electrical safety test

6.8.1 Ground resistance measurement

The low-resistance tester should be used to measure the ground resistance of the juicer, and it should meet the requirements of 5.3.1 of this standard.

6.8.2 Insulation resistance measurement

Use an insulation resistance meter to measure the insulation resistance of a juicer in accordance with the provisions of GB 5226.1, which shall comply with the provisions of 5.3.1 of this standard.

6.8.3 Withstand voltage strength test

The withstand voltage strength test of the juicer according to the provisions of GB 5226.1 shall comply with the provisions of 5.3.1 of this standard.

6.9 Safety protection inspection

Visual inspection of the safety protection of the juicer shall comply with the provisions of 5.4.8.

6.10 Dry running test (It is recommended to combine the yellow marked below into a paragraph, if it can not be combined, it should be numbered before) Before the test, install the juicer to a preset position and level it so that the left, right, front, and back of the machine are in a horizontal state, respectively.

(Greater than 1 mm), run the juicer for 30 minutes and check whether the moving parts of the juicer are normal.

6.11 Maximum production capacity test

In the unit time, count the number of reciprocations of the squeeze cups and calculate the maximum production capacity, which should meet the requirements of Table 1.

6.12 Bearing temperature rise measurement

After the juicer has been idle for 30 minutes, use a surface thermometer to measure the surface temperature of the bearing seat and calculate the temperature rise, which should meet the requirements of 5.7.1.

6.13 Working noise measurement

The sound pressure and noise of the juicer when it is running shall be measured in accordance with the method specified in GB/T 17248.3, and shall comply with the provisions in Table 1 of this standard.

6.14 Mean time between failures test

The average trouble-free working time of the juicer is calculated according to formula (1) and should comply with the requirements in Table 1.

MTBF = (1)

In the formula.

t-working time of the juicer, in hours (h);

Nf (t)-the number of failures of the juicer during working hours, the unit is times.

6.15 Sanitary requirements

The safety and hygiene of materials and component structures are checked in accordance with the provisions of GB 16798

6.16 Inspection of pneumatic system

Inspection of the pneumatic system of the juicer in accordance with the provisions of GB/T 7932 shall comply with the provisions of 5.1.11 of this standard.

6.17 Pipe inspection

Inspection of the piping system of the juicer according to GB/T 20801.1 shall comply with the provisions of 5.1.12 of this standard.

6.18 Performance check

Inspection of the operation of the juicer at the production site shall comply with the provisions of 5.5 of this standard.

6.19 Machinery safety test

During the empty operation of the juicer, the simulation of hard foreign matter entering the squeeze cup shall comply with the provisions of 5.4.6 of this standard.

7.1 General

The juicer shall pass the inspection of the inspection department of the production plant and be issued before the product certificate is issued.

7.2 Inspection classification

The inspection of the juicer is divided into factory inspection and type inspection.

7.3 Factory inspection

7.3.1 Inspection items. Each juicer should be inspected before leaving the factory. The inspection items are appearance, material, welding, assembly, labeling, and technical documents.

Parts, dry running performance, safety protection and electrical safety.

7.3.2 Judgment rule. If there are unqualified items in the factory inspection, the product will be re-inspected after refurbishing. If the re-inspection still fails, the product will be judged as unqualified.

7.4 Type inspection

7.4.1 Type inspection shall be carried out in one of the following cases.

a) When new products are typed and identified;

b) When there are major changes in structure, materials and processes that may affect product performance;

c) when production is suspended for more than one year, when production is resumed;

d) normal production, once every 3 years;

e) When the relevant national authority requests the type inspection.

7.4.2 One sample of the type inspection samples shall be randomly selected from the products that passed the factory inspection.

7.4.3 In the type inspection, if there are unqualified items, re-inspection after adjustment is allowed. If there are still unqualified items in the re-inspection, the type inspection is judged as not Passed, in which the safety performance is not qualified shall not be re-inspected.

8.1 Logo

The signs and labels should be fixed on the obvious part of the juicer, the signs should comply with the requirements of GB/T 13306, and the signs should comply with the regulations of SB/T 231.

The safety signs shall comply with the provisions of GB 2894, and the storage and transportation signs on the packing boxes shall comply with the provisions of GB/T 191. In addition, the logo should be marked Shows the following.

-Manufacturing company name, address and trademark;

-Product name and model specifications;

--The main technical parameters;

-Product implementation standard number (the number of this standard);

-Manufacturing date, factory number.

8.2 Packaging

8.2.1 The packaging of the juicer shall meet the requirements of GB/T 13384 and SB/T 229.

8.2.2 The product is packaged as a whole. Mechanical parts are packed in wooden boxes (weight added at the bottom), and electrical equipment can also be packed in corrugated boxes;

The box should be protected against moisture, vibration and fixed equipment.

8.2.3 The following random documents should be included in the packing box.

a) packing list;

b) product certification;

c) product instruction manual;

d) Random spare parts and accessories.

8.3 Transport

It can be transported by general means of transportation. During transportation, measures should be taken to prevent rain and moisture. Throwing is strictly prohibited to prevent severe vibration and mechanical damage.

hurt. Do not mix with chemically corrosive items.

8.4 Storage

8.4.1 The product shall be stored in a ventilated, dry, clean, non-corrosive gas place, and shall not be mixed with hazardous materials.

8.4.2 Under normal storage and transportation conditions, processing equipment should not cause rust, mildew, etc. due to poor packaging within 12 months from the date of shipment.