Bundling equipment for spinning

Abstract

The invention relates to the technical field of spinning equipment, in particular to spinning bundling equipment which comprises a shell, a yarn inlet ring and a bundling mechanism. A bundling mechanism is arranged in the shell, a first telescopic rod is fixed to the fixing plate, and the telescopic end of the first telescopic rod is connected with the bundling mechanism. A plurality of rollers are arranged in the bundling mechanism, a pressure sensor is mounted at the joint of each roller and the bundling mechanism, yarns penetrate through a yarn inlet ring, are bundled by the rollers of the bundling mechanism and then penetrate out of a yarn outlet hole, and the diameter of the yarn inlet ring is larger than that of the bundling mechanism; the first telescopic rod is used for pressing and loosening the yarn through the idler wheel and adjusting the traction force of the yarn under the condition that the yarn outlet distance is not changed. According to the yarn bundling device, the yarn tension in the bundling process can be adjusted, the yarn spacing is kept unchanged, and the problem that the yarn evenness and the bundling effect of yarns are affected due to the fact that the yarn spacing is inevitably changed when the tension of the yarns in the bundling process is adjusted through existing bundling equipment is solved.

Description

Technical Field

[0001] The invention relates to the technical field of spinning equipment, and in particular to a spinning bundling device. Background Art

[0002] Spinning is an important process in the textile industry, which involves combining multiple small fiber threads or single yarns into a thicker yarn. This process not only enhances the strength and uniformity of the yarn, but also improves its appearance quality, making it more suitable for subsequent weaving or other processing operations.

[0003] In the prior art, multiple devices such as a doubling machine and a doubling machine are usually required to complete the doubling and twisting of yarns. At the same time, when doubling and twisting, two or more yarns are often fed into the spindle from different angles, which causes greater resistance to the yarns, resulting in uneven yarn feeding and different tensions on the left and right sides of the yarns. In order to solve the problem that the tension cannot be adjusted in the existing device, a spinning bundling device with a tension adjustment function is disclosed, which applies pressure to the yarn through a tension adjustment wheel to adjust the tension of the yarn during the bundling process, but the spacing between the yarns inevitably changes during the tension adjustment process.

[0004] The spacing of yarns directly affects the control effect of the fibers during the drafting process, and further affects the yarn uniformity and bundling effect. If the spacing is too large, the fibers are prone to lose control during the drafting process, resulting in uneven yarn; if the spacing is too small, the fibers are prone to entanglement with each other, which also affects the yarn uniformity. To this end, we propose a bundling device for spinning. Summary of the invention

[0005] Based on the technical problems existing in the background technology, the present invention proposes a spinning bundling device, which has the characteristics of adjusting the yarn tension during the bundling process and keeping the yarn spacing unchanged to ensure the uniformity of the yarn. It solves the problem that the existing bundling equipment adjusts the yarn tension during the bundling process, which inevitably leads to changes in the yarn spacing, thereby affecting the yarn uniformity and bundling effect.

[0006] The present invention provides the following technical solution: a spinning bundling device, comprising a housing, a wire inlet ring for yarn to pass through, and a bundling mechanism; the wire inlet ring is installed on one side of the housing, and a wire outlet hole is provided on the other side of the housing;

[0007] The fixing plate is installed in the ring of the incoming wire ring, a bundling mechanism is arranged inside the shell, a telescopic rod 1 is fixed on the fixing plate, and the telescopic end of the telescopic rod 1 is connected to the bundling mechanism;

[0008] The bundling mechanism is provided with a plurality of rollers inside, and a pressure sensor is installed at the connection between each roller and the bundling mechanism. The yarn passes through the wire inlet ring and is bundled by the rollers of the bundling mechanism before passing through the wire outlet hole. The diameter of the wire inlet ring is larger than the diameter of the bundling mechanism.

[0009] The telescopic rod 1 is used to adjust the distance between the bunching mechanism and the yarn inlet ring, and then the yarn traction force is adjusted by pressing and loosening the yarn through the roller while the yarn outlet spacing remains unchanged;

[0010] The pressure sensor is used to detect the change of the traction force of the yarn.

[0011] Preferably, the wire inlet ring comprises an outer ring member and an inner ring member, the outer ring member and the inner ring member are fixed by a connecting rod, and a wire sleeve for the yarn to pass through is provided between the outer ring member and the inner ring member.

[0012] Preferably, a plurality of telescopic rods 2 corresponding to the rollers are installed inside the clustering mechanism, and the rollers are installed at the telescopic ends of the telescopic rods 2;

[0013] The second telescopic rod is fixed to the bundling mechanism through a supporting rod, and the telescopic direction of the second telescopic rod is parallel to the yarn outlet path.

[0014] Preferably, a rotating shaft is provided at the telescopic end of the second telescopic rod, the roller is sleeved on the rotating shaft, and a pressure sensor for detecting the roller pressure is provided on the rotating shaft.

[0015] Preferably, the support rod is connected to a ring-shaped oil tank via a bracket, and a sponge and spinning oil are placed in the oil tank. The oil tank is also mounted on the telescopic ends of several telescopic rods 2. The telescopic rods 2 are used to contact the roller with the spinning oil in the oil tank to achieve oiling after contraction.

[0016] Preferably, the support rod is connected to an annular oil tank via telescopic rod three, the oil tank contains sponge and spinning oil, the oil tank is located at the bottom of several rollers at the same time, and the telescopic rod three is used to drive the oil tank to rise and contact the rollers to achieve oiling.

[0017] Preferably, the support rod is connected to an oil tank via a plurality of telescopic rods three, and the plurality of oil tanks are correspondingly arranged at the bottom of a plurality of rollers, and the oil tanks are filled with sponges and spinning oils, and each telescopic rod three is used to drive the corresponding oil tank to contact the corresponding roller to achieve oiling of a single or multiple rollers.

[0018] Preferably, the oil tank is connected to the oil tank via an oil filling pipe, and the oil tank is used to supply oil to the oil tank via the oil filling pipe.

[0019] Preferably, the clustering mechanism is equipped with an infrared thermometer, and the probe of the infrared thermometer is aimed at the roller to detect the temperature change of the roller.

[0020] Preferably, a limiting member is provided on the wire sleeve, a plurality of limiting grooves 1 matching the limiting member are provided on the outer ring member, a plurality of limiting grooves 2 matching the limiting member are provided on the inner ring member, and the wire sleeve is fixed at any position between the outer ring member and the inner ring member through the limiting member, the limiting grooves 1 and the limiting grooves 2;

[0021] The outer ring is provided with a first scale line for positioning the wire sleeve, and the inner ring is provided with a second scale line for positioning the wire sleeve.

[0022] The present invention provides a spinning bundling device, which drives the bundling mechanism to move parallel to the yarn outlet direction through a telescopic rod, and can not only press the yarn through the roller to adjust the yarn tension, but also because the moving direction of the roller is parallel to the yarn appearance direction, during the tension adjustment process, only the direction of the yarn between the inlet ring and the bundling mechanism is affected, and the spacing, in addition to the inlet position and spacing of the inlet ring and the yarn outlet position and spacing of the outlet hole are not affected. The problem that the existing bundling equipment adjusts the tension of the yarn during the bundling process, which inevitably causes the yarn spacing to change, thereby affecting the yarn evenness and bundling effect is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the middle cluster mechanism;

[0025] Figure 3 The structure of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the middle cluster mechanism;

[0027] Figure 5 The structure of the present invention is shown in FIG. Figure 3 ;

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the middle cluster mechanism Figure 1 ;

[0029] Figure 7 For the present invention Figure 5 Schematic diagram of the middle cluster mechanism Figure 2 ;

[0030] Figure 8 For the present invention Figure 5 Schematic diagram of the middle cluster mechanism Figure 3 ;

[0031] Fig. 9 This is a schematic diagram of the entry ring structure of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the wire sleeve of the present invention.

[0033] In the figure: 1. outer shell; 2. outer ring; 21. limit groove 1; 22. scale line 1; 3. inner ring; 31. limit groove 2; 32. scale line 2; 4. wire sleeve; 41. limit piece; 5. connecting rod; 6. fixing plate; 7. telescopic rod 1; 71. fixing rod; 8. bundling mechanism; 81. roller; 82. pressure sensor; 83. telescopic rod 2; 84. support rod; 85. oil tank; 86. telescopic rod 3; 87. oil filling pipe; 88. oil tank; 89. infrared thermometer; 9. wire outlet hole; 10. yarn. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1 As shown, the present invention provides a technical solution: a spinning bundling device, comprising a shell 1, a wire inlet ring for yarn 10 to pass through, and a bundling mechanism 8; the wire inlet ring is installed on one side of the shell 1, and a wire outlet hole 9 is provided on the other side of the shell 1; the wire inlet ring is used for the yarn 10 to enter the bundling device, and the wire outlet hole 9 is the outlet of the yarn after bundling.

[0036] The fixed plate 6 is installed in the ring of the wire inlet ring. The fixed plate 6 is arranged inside the wire inlet ring for the purpose of installing the bundling mechanism 8. The bundling mechanism 8 is arranged inside the shell 1. A telescopic rod 7 is installed on the fixed plate 6, and then the telescopic end of the telescopic rod 7 is connected to the bundling mechanism 8, so that the bundling mechanism 8 can be fixed. The telescopic rod 7 can be extended and retracted to drive the bundling mechanism 8 to rise and fall, thereby realizing the adjustment of the pressure of the yarn 10.

[0037] like Figure 2 As shown, a plurality of rollers 81 are arranged inside the bundling mechanism 8. The rollers 81 are distributed in a ring shape and correspond one to one with the wire sleeves 4 in the wire inlet ring. A yarn 10 passes through each roller 81, and a pressure sensor 82 is installed at the connection between each roller 81 and the bundling mechanism 8. The yarn 10 passes through the wire inlet ring and is bundled by the rollers 81 of the bundling mechanism 8, and then passes out through the wire outlet hole 9. The diameter of the wire inlet ring is larger than the diameter of the bundling mechanism 8, which is convenient for wire entry and bundling.

[0038] The telescopic rod 7 is used to adjust the distance between the bunching mechanism 8 and the inlet ring, and then, when the yarn 10 outlet spacing remains unchanged, the yarn 10 is pressed and loosened by the roller 81 to adjust the traction force of the yarn 10; during the extension and retraction of the telescopic rod 7, the distance between the rollers 81 remains unchanged, and the spacing of the bunched yarn 10 output by the bunching mechanism 8 and the outlet hole 9 remains unchanged. Then, during the contraction of the telescopic rod 7, the bunching mechanism 8 and the roller 81 simultaneously press the yarn 10 upward, increase the tension of the yarn 10 when the yarn 10 is bunched, realize the adjustment of the tension of the yarn 10, and adjust the tension of the yarn 10 on all rollers 81 at the same time. When it is necessary to reduce the tension of the yarn 10, the extension of the telescopic rod 7 can reduce the pressure on the roller 81 on the yarn 10, thereby reducing the bunching tension of the yarn 10. By detecting the change of the traction force of the yarn 10 through the pressure sensor 82 on the roller 81, the tension of the yarn 10 can be accurately controlled.

[0039] like Figure 3 As shown, the wire feed ring includes an outer ring part 2 and an inner ring part 3. The outer ring part 2 and the inner ring part 3 are fixed by a connecting rod 5. A plurality of connecting rods 5 are provided, which are evenly distributed at intervals of the yarn 10. On the one hand, they can ensure the stability between the inner ring part 3 and the outer ring part 2, and on the other hand, they can avoid blocking the yarn 10 from entering.

[0040] A conductor sleeve 4 for the yarn 10 to pass through is arranged between the outer ring member 2 and the inner ring member 3. A plurality of conductor sleeves 4 are arranged, and they can be arranged in an annular arrangement at equal distances according to requirements.

[0041] The telescopic rod 7 is connected to the bundling mechanism 8 through a fixed rod 71, and the fixed rod 71 is located between two adjacent rollers 81 to avoid the path of the yarn 10. There are also a plurality of rollers 81, the number of which is consistent with the number of the wire sleeves 4 and corresponds one to one, so that each yarn 10 passing through the wire sleeves 4 can enter the rollers 81 for bundling.

[0042] like Figure 4 As shown, several telescopic rods 83 corresponding to the rollers 81 are installed inside the bunching mechanism 8, and the rollers 81 are installed at the telescopic ends of the telescopic rods 83; the telescopic rods 83 are fixed to the bunching mechanism 8 by the support rods 84, and the telescopic direction of the telescopic rods 83 is parallel to the outlet path of the yarns 10. The telescopic rods 83 can drive the rollers 81 to move along the outlet direction of the yarns 10. When moving along the line, one of the yarns 10 can be pressurized separately to adjust its tension. Since the rollers 81 move along the outlet direction of the yarns 10, the tension of the yarns 10 passing through the rollers 81 increases, and when the yarns 10 are outlet, the distance between the yarns 10 and other yarns 10 does not change. Figure 4As shown, the height of the roller 81 on the left side is lower than that of the roller 81 on the right side, and the tension of the yarn 10 on the roller 81 on the right side is greater than that of the yarn 10 on the roller 81 on the left side, but the outlet positions and spacings of the two yarns do not change and are parallel to each other. Thus, the tension of any one or more of all the yarns 10 can be adjusted without affecting the outlet position and spacing of the yarns 10. The phenomenon of uneven yarn dryness caused by changes in the spacing of the yarns 10 is avoided.

[0043] like Figure 4 As shown, the telescopic end of the second telescopic rod 83 is provided with a rotating shaft, the roller 81 is sleeved on the rotating shaft, and a pressure sensor 82 for detecting the pressure of the roller 81 is provided on the rotating shaft. Since the force direction changes inevitably occur during the up and down movement of the roller 81, by arranging the pressure sensor 82 on the rotating shaft, the pressure change transmitted from the roller 81 to the second telescopic rod 83 can be detected more accurately, and then the tension of the yarn 10 can be determined.

[0044] like Figure 5 and 6 As shown, a ring-shaped oil tank 85 is fixed on the support rod 84 by a bracket. The oil tank 85 contains a sponge and a spinning oil. When the friction force is too strong, the yarn is subjected to excessive resistance during the drafting process, resulting in the yarn being unable to change speed and run normally, and also forming coarse and fine spots. The amount of oil applied has a great influence on the friction of the fiber and the cohesion of the tow. When poor bundling occurs, the effect of the spinning oil application needs to be checked first. By setting the oil tank 85, the yarn 10 can be oiled.

[0045] The oil tank 85 is simultaneously sleeved on the telescopic ends of several telescopic rods 83. After any telescopic rod 83 is retracted, the roller 81 can be lowered to contact the spinning oil in the oil tank 85, thereby achieving oiling. The oil tank 85 is connected to the oil tank 88 through an oil filling pipe 87. The oil filling pipe 87 is made of a small diameter thin tube or fiber material. The oil in the oil tank 88 is introduced into the oil tank 85 by capillary action. The sponge in the oil tank 85 can effectively transfer the oil to the roller 81, thereby oiling the yarn 10. A single yarn 10 can be oiled, and multiple yarns 10 can also be oiled at the same time.

[0046] like Figure 7 As shown, a circular oil groove 85 is connected to the support rod 84 through a telescopic rod 3 86. The oil groove 85 contains a sponge and a spinning oil. The oil groove 85 is also located at the bottom of several rollers 81. The oil groove 85 is connected to the oil tank 88 through an oil filling pipe 87. The oil filling pipe 87 uses a thin tube or fiber material with a smaller diameter, and uses capillary action to guide the oil in the oil tank 88 into the oil groove 85.

[0047] The telescopic rod 3 86 drives the oil tank 85 to rise and contact the roller 81, and the sponge in the oil tank 85 can effectively transfer the oil to the roller 81, thereby oiling the yarn 10. The telescopic rod 3 86 is set to drive the entire oil tank 85 up and down, and all the yarns 10 can be oiled at the same time, which can avoid the adjustment of the telescopic rod 2 83, because the adjustment of the telescopic rod 2 83 will affect the tension of the yarn 10, and avoid affecting the tension of the yarn 10 during the oiling process, so that while oiling, the tension of the yarn 10 can still be guaranteed to be continuously bundled, and the automation of the oiling of the yarn 10 is realized without affecting the processing efficiency and processing quality.

[0048] like Figure 8 As shown, the support rod 84 is connected to an oil groove 85 through a plurality of telescopic rods 86. The plurality of oil grooves 85 are correspondingly arranged at the bottom of the plurality of rollers 81. The oil groove 85 contains a sponge and a spinning oil. Each telescopic rod 86 is used to drive the corresponding oil groove 85 to contact the corresponding roller 81 to achieve oiling of a single or multiple rollers 81. The oil groove 85 is connected to the oil tank 88 through an oil filling pipe 87. The oil filling pipe 87 is made of a thin tube or fiber material with a smaller diameter. The oil in the oil tank 88 is introduced into the oil groove 85 by capillary action.

[0049] By setting up a plurality of telescopic rods 3 86, each telescopic rod 3 86 is provided with a separate oil groove 85, so that the oil groove 85 can be adjusted by the telescopic rod 3 86 alone, and then when the telescopic rod 2 83 is not moved, that is, the tension of the yarn 10 remains unchanged, a single yarn 10 can be oiled.

[0050] like Figure 6 , 7 As shown in FIG. 8 , the bundling mechanism 8 is built with an infrared thermometer 89, and the probe of the infrared thermometer 89 is aimed at the roller 81 to detect the temperature change of the roller 81. When the friction of the yarn 10 is abnormal, the temperature of the roller 81 will increase. By monitoring the temperature change of the roller 81, the friction of the yarn 10 can be indirectly detected. When the infrared thermometer 89 detects that the temperature of a roller 81 is abnormal, it is oiled through the oil tank 85 to ensure that the friction of the yarn 10 is normal during the bundling process.

[0051] like Fig. 9 and 10As shown, a limiting member 41 is provided on the wire sleeve 4, a plurality of limiting grooves 1 21 matching the limiting member 41 are provided on the outer ring member 2, and a plurality of limiting grooves 2 31 matching the limiting member 41 are provided on the inner ring member 3. The wire sleeve 4 is fixed at any position between the outer ring member 2 and the inner ring member 3 through the limiting member 41, the limiting grooves 1 21, and the limiting grooves 2 31; by providing the limiting member 41 and the limiting grooves, the installation and removal of the wire sleeve 4 are facilitated, so that the user can set a plurality of fiber sleeves at equal intervals as required. Then, according to the number of wire sleeves 4, the matching bundling mechanism 8 is replaced.

[0052] The outer ring 2 is provided with a scale line 1 22 for positioning the wire sleeve 4, and the inner ring 3 is provided with a scale line 2 32 for positioning the wire sleeve 4. The setting of the scale line can facilitate the staff to confirm the spacing between two adjacent wire sleeves 4, thereby facilitating the replacement and installation of the wire sleeve 4.

[0053] The present invention realizes the tension adjustment of the yarn 10 during the spinning bundling process, and at the same time ensures that the spacing of the yarn 10 is not affected during the adjustment process. The reasonable spacing can keep the fiber in good parallelism and straightness during the drafting process, thereby forming a good bundling effect. The problem of unreasonable spacing caused by adjusting the yarn tension in the prior art, which in turn affects the bundling effect of the fiber and causes the strength and uniformity of the yarn to decrease, is avoided.

[0054] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spinning bundling device, characterized in that: It comprises a housing (1), a wire inlet ring for yarn (10) to pass through, and a bundling mechanism (8); the wire inlet ring is installed on one side of the housing (1), and a wire outlet hole (9) is provided on the other side of the housing (1); The fixing plate (6) is installed in the ring of the incoming wire ring, a bundling mechanism (8) is arranged inside the housing (1), a telescopic rod (7) is fixed on the fixing plate (6), and the telescopic end of the telescopic rod (7) is connected to the bundling mechanism (8); The bundling mechanism (8) is provided with a plurality of rollers (81) inside, and a pressure sensor (82) is installed at the connection between each roller (81) and the bundling mechanism (8). The yarn (10) passes through the wire inlet ring and is bundled by the rollers (81) of the bundling mechanism (8) before passing through the wire outlet hole (9). The diameter of the wire inlet ring is greater than the diameter of the bundling mechanism (8). The telescopic rod (7) is used to adjust the distance between the bundling mechanism (8) and the inlet ring, and then, when the outlet spacing of the yarn (10) remains unchanged, the yarn (10) is compressed and loosened by the roller (81) to adjust the traction force of the yarn (10); The pressure sensor (82) is used to detect the change of the traction force of the yarn (10).

2. A spinning bundling device according to claim 1, characterized in that: The wire inlet ring comprises an outer ring member (2) and an inner ring member (3), the outer ring member (2) and the inner ring member (3) are fixed via a connecting rod (5), and a wire sleeve (4) for the yarn (10) to pass through is provided between the outer ring member (2) and the inner ring member (3).

3. A spinning bundling device according to claim 1, characterized in that: A plurality of telescopic rods (83) corresponding to the rollers (81) are installed inside the clustering mechanism (8), and the rollers (81) are installed at the telescopic ends of the telescopic rods (83); The second telescopic rod (83) is fixed to the bundling mechanism (8) via a support rod (84), and the telescopic direction of the second telescopic rod (83) is parallel to the outlet path of the yarn (10).

4. A spinning bundling device according to claim 3, characterized in that: The telescopic end of the second telescopic rod (83) is provided with a rotating shaft, the roller (81) is sleeved on the rotating shaft, and a pressure sensor (82) for detecting the pressure of the roller (81) is provided on the rotating shaft.

5. A spinning bundling device according to claim 4, characterized in that: The support rod (84) is connected to a ring-shaped oil tank (85) through a bracket. The oil tank (85) contains a sponge and a spinning oil. The oil tank (85) is also sleeved on the telescopic ends of a plurality of telescopic rods (83). The telescopic rods (83) are used to contact the roller (81) with the spinning oil in the oil tank (85) to achieve oiling after contraction.

6. A spinning bundling device according to claim 4, characterized in that: The support rod (84) is connected to a circular oil groove (85) via a telescopic rod three (86), and the oil groove (85) contains a sponge and a spinning oil. The oil groove (85) is located at the bottom of a plurality of rollers (81) at the same time. The telescopic rod three (86) is used to drive the oil groove (85) to rise and contact with the roller (81) to achieve oiling.

7. The spinning bundling device according to claim 4, characterized in that: The support rod (84) is connected to an oil groove (85) via a plurality of telescopic rods (86). The plurality of oil grooves (85) are correspondingly arranged at the bottom of a plurality of rollers (81). The oil grooves (85) are filled with sponges and spinning oil. Each telescopic rod (86) is used to drive the corresponding oil groove (85) to contact the corresponding roller (81) so as to achieve oiling of a single or multiple rollers (81).

8. A spinning bundling device according to any one of claims 5, 6 and 7, characterized in that: The oil groove (85) is connected to an oil tank (88) via an oil filling pipe (87), and the oil tank (88) is used to supply oil to the oil groove (85) via the oil filling pipe (87).

9. The spinning bundling device according to claim 1, characterized in that: The clustering mechanism (8) is equipped with an infrared thermometer (89), and a probe of the infrared thermometer (89) is aimed at the roller (81) to detect the temperature change of the roller (81).

10. The spinning bundling device according to claim 2, characterized in that: The wire sleeve (4) is provided with a limiting member (41), the outer ring member (2) is provided with a plurality of limiting grooves (21) matching the limiting member (41), the inner ring member (3) is provided with a plurality of limiting grooves (31) matching the limiting member (41), and the wire sleeve (4) is fixed at any position between the outer ring member (2) and the inner ring member (3) through the limiting member (41) and the limiting grooves (21) and (31). The outer ring member (2) is provided with a first scale line (22) for positioning the wire sleeve (4), and the inner ring member (3) is provided with a second scale line (32) for positioning the wire sleeve (4).

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