Journal of Jilin University(Engineering and Technology Edition) ›› 2026, Vol. 56 ›› Issue (8): 2260-2278.doi: 10.13229/j.cnki.jdxbgxb.20250030

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Structural design and testing of double belt residual film binding device and film carrying box

Min WANG(),Shang HUO,Si-lin CAO,Yu-kun YING,Yu-ze HE,Yong-tao LU   

  1. Institute of Mechanical Equipment,Xinjiang Academy of Agricultural and Reclamation Science,Shihezi 832000,China
  • Received:2025-01-02 Online:2026-08-01 Published:2026-09-02

Abstract:

A dual belt residual film bundling device has been designed to address the problems of complex structure, low service life of bundling belts, adjustable tightness of film bundling, uncertain unloading position, and poor compatibility with existing residual film recycling machines in the existing residual film bundling process. This article introduces the composition and working process of the residual film bundling structure, with a focus on optimizing the design of the bundling device, tensioning device, and film carrying box. By conducting a dynamic analysis of the bundling process, the structural and operational parameters of each functional component were determined. To verify the operational performance and efficiency of the dual belt residual film bundling device, three factor three-level quadratic regression experiments were conducted with bundling chamber angle, bundling belt friction coefficient, and bundling belt linear speed as experimental factors, and residual film bundling rate, residual film bundling density, and bundling efficiency as response values. A regression model was established to analyze the effects of each factor on residual film bundling rate, residual film bundling density, and bundling efficiency, and parameter optimization and experimental verification were carried out.The experimental results show that the factors affecting the bundling rate of residual film are in descending order: bundling chamber angle>bundling belt linear velocity>bundling belt friction coefficient; The factors that affect the density of residual film bundling are in the following order: bundling belt line speed>bundling chamber angle>bundling belt frictioncoefficient; The factors that affect packaging efficiency are in the following order: the friction coefficient of the strapping belt>the angle of the strapping chamber>the linear velocity of the strapping belt. Theoretical optimal design parameters: bundling chamber angle is 33°, packing belt friction coefficient is 0.83, and packing belt linear velocity is 1.03 m/s. The research results provide reference for the design and high-quality operation of residual film bundling devices.

Key words: tying device, adjustable bale diameter, double-belt baling device, film magazine, orthogonal experiment

CLC Number: 

  • S225

Fig.1

Schematic diagram of whole machine"

Fig.2

Schematic diagram of whole machine"

Fig.3

Schematic diagram of double-belt tying device"

Table 1

Main working parameters"

参数数值
配套动力/Hp≥35
整机尺寸/(mm×mm×mm)4 000×2 800×1 700
膜捆直径(可调)/mm≤350
膜捆箱装容量(膜捆装箱)/捆3~5
打捆带幅宽/mm2 000
残膜成捆率/%100
工作率捆/h10~16

Table 2

Friction characteristics of plastic film"

编号摩擦带类型摩擦角/(°)
1光带38
2草坪纹带49
3颗粒纹带54
4光带37
5草坪纹带47
6颗粒纹带55

Fig.4

Double-belt baling structure"

Fig.5

Baling belt"

Fig.6

Actual force on residual film during formation stage of bundled core"

Fig.7

Analysis of residual film bundle stress during formation stage of bundle core"

Fig.8

Actual force diagram during completion stage of residual film bundling"

Fig.9

Stress analysis during completion stage of residual film bundling"

Fig.10

Actual force diagram of residual film bundle entering membrane box stage"

Fig.11

Schematic diagram of fixed tensioning"

Fig.12

Schematic diagram of floating tensioning mechanism"

Fig.13

Installation diagram of floating tensioning device"

Fig.14

Schematic diagram of relationship between diameter of membrane package and height of floating tensioning roller"

Table 3

Experimental data sheet of membrane packagediameter and tensioner height"

组数L1/mmL2/mmk
平均值292.83.30.011
1313.44.30.014
2204.42.10.010
3345.95.20.015
4303.22.80.010
5295.42.60.009
6294.62.50.008

Fig.15

Fixed-point film unloading"

Fig.16

Dimension diagram of floating support roller"

Fig.17

Schematic diagram of membrane carrier box"

Fig.18

Dimensional diagram of membrane carrier box"

Fig.19

Guiding structure of membrane carrier box"

Fig.20

Film magazine structure and side plate(α=15°;β1=β2=20°)"

Fig.21

Working condition of membrane package storage box"

Fig.22

Load membrane box grid division"

Table 4

Natural frequencies and displacements of membrane carriers"

阶数频率/Hz位移/m阶数频率/Hz位移/m
1130.490.3346256.870.209
2161.510.1487280.090.186
3225.670.2338305.390.215
4236.600.3229369.920.173
5253.450.41310428.620.304

Fig.23

Modal analysis and vibration mode diagram of membrane box"

Table 5

Test conditions"

参数数值/描述
作物类型棉花
土壤坚实度/MPa0.45
土壤含水率/%7.98
地膜宽度/mm2 050
地膜厚度/mm0.01
铺膜时间/d185
棉花种植模式(机采棉种植模式)/cm66+10

Table 6

Preliminary design parameter ranges"

影响因素打捆腔角度α/(°)

打捆带摩擦

因数

打捆带线速度

/(m·s-1

范围30°~38°0.69~0.960.4~1.8

Fig.24

Dual-belt film baler test rig and 3D model"

Fig.25

Single factor experimental results"

Table 7

Encoding of experimental factors"

水平打捆腔角度/(°)打捆带摩擦因数

打捆带线速度

/(m?s-1

-1320.690.8
0340.8251.1
1360.961.4

Table 8

Experimental plan and results"

Run

X1:打

捆腔

角度a

X2:打捆

带摩擦

因数

X3:打捆带线速度/

(m·s-1

残膜

成捆率%

残膜捆

密度/

(kg·m-3

打捆

效率/

(捆·h-1

1360.8250.893.9387.679
2320.8250.897.6494.3412
3340.960.898.2192.4514
4340.691.499.32104.2712
5340.8251.199.64101.5913
6320.961.194.64104.3215
7340.8251.199.75101.8714
8340.961.496.91105.9816
9340.8251.1100102.8613
10360.8251.497.32103.9614
11340.8251.1100102.3213
12360.691.193.6399.3210
13320.8251.495.18106.3213
14360.961.194.8698.3215
15340.690.897.3190.488
16320.691.196.44101.4511
17340.8251.1100102.3213

Table 9

Analysis of variance"

变异

来源

残膜成捆率Y1残膜捆密度Y2打捆效率Y3
自由度均方F1P1自由度均方F2P2自由度均方F3P3
回归99.02173.440.000 1**954.31242.340.000 1**98.0953.950.000 1**
X112.1641.570.000 4**136.81164.250.000 1**11.137.50.02 9*
X210.5410.390.014 6**13.8517.180.004 3**145.13300.830.000 1**
X310.346.460.038 6*1386.281723.750.000 1**1181200.000 1**
X1X212.3044.110.000 3**13.7416.710.004 6**10.251.670.237 7
X1X318.56164.430.000 1**14.6420.720.002 6**1426.670.001 3**
X2X312.7452.640.000 2**10.020.07540.791 5116.670.036 4*
X12150.20964.690.000 1**12.5711.460.011 7*10.956.330.04
X2219.89190.110.000 1**11.315.860.046 0*10.002 60.01750.898 4
X3210.7013.450.008 0146.93209.420.000 1**12.2114.750.006 4
残差70.052070.224 170.15
失拟30.08222.790.173 230.207 90.879 70.522 930.083 30.416 70.751
误差40.029440.236 340.2

Fig.26

Influence of various factors on bundling"

Fig.27

Influence of various factors on density of residual film bundles"

Fig.28

Influence of various factors on bundling efficiency"

Table 10

Test results"

试验

序号

残膜成捆

率/%

残膜捆密度/

(kg?m-3

打捆效率/

(捆?h-1

平均值100106.2314.67
1100104.2515
2100106.5313
3100107.8916

Fig.29

Field experiment"

Fig.30

Unloading process"

Fig.31

Film bundle"

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