JB/T 8539-2013 English PDF (JB/T8539-2013)

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JB/T 8539-2013: Plastic extrusion blow molding machines
JB/T 8539-2013
JB
MACHINERY INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 71.120; 83.200
G 95
Record no.. 44149-2014
Replacing JB/T 8539-1997
Plastic extrusion blow molding machines
ISSUED ON. DECEMBER 31, 2013
IMPLEMENTED ON. JULY 1, 2014
Issued by. Ministry of Industry and Information Technology
Table of Contents
Foreword ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Types and basic parameters ... 6
4.1 Types ... 6
4.2 Maximum product volume series of molding machines ... 6
4.3 Basic parameters ... 6
5 Requirements ... 7
5.1 General requirements ... 7
5.2 Parison requirements ... 8
5.3 Safety protection ... 8
5.4 Appearance ... 9
6 Test methods ... 9
6.1 Mold clamping force test ... 9
6.2 Plasticizing capacity test ... 11
6.3 Storage amount test ... 11
6.4 Hydraulic system test ... 12
6.5 Electrical system test ... 13
6.6 Parison quality uniformity test ... 13
6.7 Parison control device test ... 13
6.8 Safety interlocking device test ... 13
6.9 Noise test ... 14
7 Inspection rules ... 14
7.1 Exit-factory inspection ... 14
7.2 Type test ... 15
8 Marking, packaging, transportation and storage ... 15
8.1 Marking ... 15
8.2 Packaging ... 16
8.3 Transportation ... 16
8.4 Storage ... 16
Table 1 – Basic parameters ... 7
Figure 1 – Standard test method for mold clamping force ... 9
Figure 2 – Reference method I for mold clamping force ... 10
Figure 3 – Reference method II for mold clamping force test ... 11
Figure 4 – Storage head ... 12
Figure 5 – Noise test ... 14
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces JB/T 8539-1997, Plastics extrusion hollow blow molding
machine. Compared with JB/T 8539-1997, the major technical changes are as follows.
-- it adds and change the normative references (see Clause 2);
-- it adds and changes the product volume series parameters (see 4.2);
-- it adds and changes the basic parameters (see 4.3);
-- it changes the requirements for the electrical system (see 5.1.5);
-- it changes the quality uniformity requirements for the injection parison (see 5.2.2);
-- it changes the safety protective device (see 5.3.2);
-- it changes the emergency opening device (see 5.3.4);
-- it changes the plasticizing capacity test (see 6.2.1).
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of Subcommittee on Plastic Machinery of
National Technical Committee on Rubber and Plastic Machinery of Standardization
Administration of China (SAC/TC71/SC2).
The responsible drafting organization of this Standard. Qinchuan Machine Tool and Tool
(Group) Corp.
The participating drafting organizations of this Standard. Suzhou Tongda Machinery
Co., Ltd., Leshan Industrial Co., Ltd., Dalian Plastic Machinery Research Institute.
The main drafters of this Standard. Tan Guanglin, Li Bo, Xu Wenliang, Wang Shuhui,
Ma Jianjun, Gao Shifan, Zhang Mu, Li Xianglan.
The previous editions of the standard replaced by this Standard are as follows.
-- ZB G95015-1989;
-- JB/T 8539-1997.
Plastic extrusion blow molding machines
1 Scope
This Standard specifies the types and basic parameters, requirements, test methods,
inspection rules, marking, packaging, transportation and storage for plastic extrusion
blow molding machines.
This Standard applies to the molding machines which produces plastic hollow products
using the extrusion-blow method (hereinafter referred to as the molding machines);
this Standard can be referred to for the molding machines for other special purposes.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced documents (including all
amendments) applies to this document.
GB/T 191, Packaging – Pictorial marking for handling of goods
GB/T 3766, Hydraulic fluid power – General rules and safety requirements for
systems and their components
GB/T 3785 (all parts), Electroacoustics – Sound level meters
GB 5226.1-2008, Electrical safety of machinery – Electrical equipment of
machines – Part 1. General requirements
GB 17888.3, Safety of machinery – Permanent means of access to machinery –
Part 3. Stairs, stepladders and guard-rails
GB/T 6388, Transport package shipping mark
GB/T 7932, Pneumatic fluid power – General rules relating to systems
GB/T 9969, General principles for preparation of instructions for use of industrial
products
GB/T 12783, Editorial nominating method for the model designation of rubber and
plastics machinery
5.1.7 The hydraulic, pneumatic and cooling systems and other components shall not have
leakage of oil, gas or water; the cooling liquid shall not be mixed into the hydraulic system.
5.1.8 The molding machines shall operate stably and reliably during normal operation; the
control system shall be highly responsive, with clear and accurate indication.
5.1.9 For the molding machines equipped with the multi-point parison wall thickness control
device, the repeated positioning accuracy of die opening amount shall be less than 0.1 mm.
5.2 Parison requirements
5.2.1 The parison shall be smooth, well plasticized.
5.2.2 For the molding machines equipped with a storage head (hereinafter referred to as the
storage type molding machines), at any set value, the quality uniformity of injection parison
shall not be greater than 3%.
5.2.3 For continuous extrusion molding machines (hereinafter referred to as continuous
molding machines), within the same time interval, the quality uniformity of extrusion parison
shall not be greater than 5%.
5.3 Safety protection
5.3.1 If the operating conditions of the components, instruments and accessories of the
molding machines, 2 m above the ground, need to be observed, it needs to provide skidproof
foot rests, platforms or ladders as well as reliable fence and handrail, as specified in GB
17888.3.
5.3.2 Safety protective devices shall be provided around the molding machines on which
molds are installed. If safety doors are installed as protective devices, they shall be fixed reliably
without opening itself. If photoelectric protective devices are used, it shall be ensured that they
operate reliably and are provided with visible warning signs. The mold clamping part shall be
provided with a reliable safety interlocking system. In normal operating conditions, the safety
doors shall not be closed or block the photoelectric device; the mold clamping part shall not be
closed.
5.3.3 The storage type molding machines shall give alarms when the storage amount
achieves the limit value and the extruding machines shall stop operating.
5.3.4 The molding machines shall have emergency stop buttons and rapid mold opening
buttons. Press the emergency stop button and then the extruding machines and oil pumps stop
operating; and then the other actions stop. Press the rapid mold opening button, and then the
template immediately opens.
5.3.5 The molding machines shall be free from any abnormal scream or impact sound. The
accompanied by a quality certificate. Before the delivery of each molding machine, the
continuous idle operation test for not less than 4 h shall be carried out (with the
extruding device and h...