FZ/T 92081-2014Spinning leaf spring pendulum arms (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

The standard proposed by China Textile Industry Association.

This standard by the National Standardization Technical Committee Textile machinery and accessories spinning, dyeing and finishing machinery Technical Committee (SAC/TC215 /SC1) centralized.

This standard was drafted. Changde Textile Machinery Co., Ltd., Changzhou City and Textile Machinery Manufacturing Co., the National Textile Machinery Quality Supervision and Inspection Center, Changde City Heng-day Textile Machinery Co., Ltd., Taizhou Hang Seng Textile Machinery Co., Ltd., Hefei Peng Electronic Technology Co., Ltd.

1 Scope

This standard specifies the pressure plate spring cradle (hereinafter referred to as the "cradle") classification and marking requirements, test methods, inspection rules, marks, packages Loading, transport and storage.

This standard applies to ring spinning frame, roving leaf spring pressing cradle.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 191 Packaging - Pictorial signs FZ/T 90001 Textile machinery Packaging

3 Classification and Marking

4 Requirements

Parallelism 4.1 cradle grip profile the first roller on its axis parallel to the axis of the lower rollers should meet the requirements of Table 2 4.1.1 main drafting zone.

Table 2 millimeters

project

tolerance

Cradle roving yarn Cotton wool and linen silk type cotton Parallelism t 0.20/70 0.40/75 0.40/110 Note. The table 70,75,110 on the relevant type cradle of the main drafting zone under the roller or rollers parallel to the length L of the reference value, and to hold the file in the cradle is the midpoint of the center line (see Figure 1, Figure 2).

Note. mainly between I and II roller drafting zone.

figure 1

Note. the main drafting zone between II and III roller.

figure 2

4.1.2 The second area of the main drafting roller axis parallel to the first roller axis shall comply with the requirements of Table 3.

Table 3 millimeters

project

tolerance

Cradle roving yarn Cotton wool and linen silk type cotton Parallelism t 0.40/70 0.60/75 0.60/110 Note. The table 70,75,110 on the relevant type cradle of the main drafting zone under the roller or rollers parallel to the length L of the reference value, and to hold the file in the cradle it is the midpoint of the center line (see Figure 3).

image 3

4.1.3 The remaining rollers on the first axis on the main drafting zone parallel roller axis shall comply with the requirements of Table 4.

Table 4 millimeters

project

tolerance

Cradle roving yarn Cotton wool and linen silk type cotton Parallelism t 0.45/70 0.70/75 0.70/110 Note. The table 70,75,110 on the relevant type cradle of the main drafting zone under the roller or rollers parallel to the length L of the reference value, and to hold the file in the cradle it is the midpoint of the center line (see Figure 4).

Figure 4

4.2 The pressure sets cradle Complete cradle The pressure to comply with Table 5.

table 5

project

Limit deviation

Cradle roving yarn Cotton wool and linen silk type cotton Pressure 0.05 0 Fa 0.08

0 Fa

aF to work at a predetermined position, the cradle pressure nominal value.

5 Test methods

5.1 cradle installed on the test bench, according to the product specification requirements on roller configuration, the diameter of the rollers grip profile accuracy level of not less than h7 Level, concentricity is not greater than two cots phi0.02mm. Press roller test bench parameters adjusting roller gauge, the cradle of the work of the pressure regulator to the maximum, start running time of less than 30s and unloading parallel pressure test.

On its first roller axis parallel to the axis of the lower roller 5.2 cradle main drafting zone (4.1.1), with a parallel Gage measured parallel the degree of error is 1 and the dial indicator shows the difference between the value of 2. I II between the roller and the main drafting zone between the measurement shown in Figure 5a), II and III main roller Measurement drawing area is shown in Figure 5b).

Explanation.

1,2 --- dial indicator. Figure 5 5.3 second cradle of the main drafting zone on a first roller axis of the roller axis parallel (4.1.2), with a parallel measure or gauge vernier caliper the amount. Parallel measurements with Gage Figure 6a), parallelism error as a lever dial indicator shows the value of the difference between 1 and 2. When measured by vernier caliper, respectively FIG measuring 6b) l1 shown, l1 'length value, l1, l1' difference, that is parallelism error.

Explanation.

1,2 --- lever dial indicator.

Figure 6

5.4 remaining on the roller axis of the main drafting zone on a first axis parallel rollers (4.1.3), were measured with a vernier caliper as shown in Fig. 7 l1, l1 ', ln1, ln1', lni, lni 'length value, which corresponds to the length of the district is the difference between parallelism error. I II between the roller and the main drafting zone Measurement Figure 7a), the main measure between II and III roller drafting zone is shown in Figure 7b).

Figure 7

5.5 Complete cradle pressing pressure (4.2), with the spring tension and compression testing machine or cradle dynamometer measurement (according to the roller cradle design requirements).

5.6 Complete cradle discharge pressure (4.3), the minimum pressure adjusted cradle stall, with a dynamometer measurement (Figure 8).

Figure 8

5.7 cradle locking mechanism (4.4.2), with not more than 30N force to pull up the handle, releasing the pressure unexpected phenomenon does not occur.

5.8 cradle spring clip gripping force (4.4.3), the journal of the rollers on both sides of the hanging file holding two rope with a weight or dynamometer measurement hoist see FIG. 9a). Its power (P) in a direction perpendicular to the top surface of the grip seat, heavy weight lifting seat when holding top-section horizontal position, see Figure 9b).

Figure 9

5.9 remaining project, sensory testing.

6 Inspection rules

7 Logo

7.1 Shake shelf product identification marks and corporate logos.

7.2 Packaging Pictorial marking according to GB/T 191 requirements.

8 Packaging, transportation and storage

8.1 Packaging shall comply FZ/T 90001, the filter package certificate and instructions.

8.2 product during transport, according to the provisions of the box toward the placement, shall be dumped or change direction.

8.3 products from the date of the factory, in a good rain, ventilated storage conditions, parts rust inside the box, moisture valid from the factory Year from the date.