Cotton yarn spinning clearer for knitting machine

Abstract

The utility model relates to a cotton yarn spinning clearer for a knitting machine, which comprises a detection head arranged on a rack of a spinning machine, a yarn passing channel is arranged at the front end of the detection head, a mounting plate is arranged at the bottom of the rear end of the detection head, a mounting block is arranged on the rear side of the mounting plate, and a mounting box is arranged on the rack corresponding to the mounting block. The front end of the mounting box is open, the inner wall of the rear end of the mounting box is provided with an electromagnet, the outer top of the mounting box is provided with an electric push rod, the telescopic end of the electric push rod is upwards and fixedly connected with a top plate, the left side and the right side of the bottom of the top plate are provided with inserting plates, and the top and the bottom of the mounting box are provided with through grooves. The insertion plate can penetrate through the through groove and the through hole, supporting plates are arranged at the top and the bottom of the detection head on the left side and the right side of the yarn passing channel, a guide plate is detachably arranged between the two supporting plates at the same end, and a guide through hole is formed in the guide plate. According to the utility model, the detection head in the photoelectric electronic yarn clearer can be conveniently disassembled and stably operated, and the photoelectric electronic yarn clearer is more practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of yarn clearing, and in particular relates to a spinning yarn clearer for cotton yarn used in a knitting machine. Background Art

[0002] Textile machines, also called spinning machines, looms, cotton spinning machines, etc., generally use three types of short fibers, wool, linen, and cotton, as textile raw materials. Among them, cotton yarn short fibers are made by spinning. At present, during spinning production, spinning equipment is usually equipped with yarn clearers to detect and cut yarn defects. Commonly used yarn clearers are electronic yarn clearers, which are photoelectric and capacitive. Among them, the photoelectric electronic yarn clearer mainly includes a power transformer, a voltage-stabilizing power supply board, a cutter power supply board, a setting board, an amplifier board, a detection head and other structures. The detection head is generally installed between the sand outlet and the winding drum, and a U-shaped yarn passage is opened on it. The spun yarn passes through the yarn passage to the winding drum, so that the passing yarn can be detected by the detection head during the winding process. However, in actual use, on the one hand, the detection head is mostly fixed to the spinning equipment by bolting or welding, which makes disassembly and assembly inconvenient and is not conducive to the inspection and replacement of the detection head. On the other hand, there is a lack of effective guiding constraints on the yarn when the yarn passes through the yarn channel. Affected by the jitter of the yarn when it moves at high speed, the yarn is easily detached from the yarn channel, affecting the normal and stable operation of the detection head, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a spinning yarn clearer for cotton yarn for a knitting machine, which can realize convenient disassembly and assembly and stable operation of a detection head in a photoelectric electronic yarn clearer to solve the above-mentioned problem.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a spinning yarn clearer for cotton yarn for knitting machines, comprising a detection head installed on the frame of the spinning machine, a U-shaped yarn passing channel is opened at the front end of the detection head, a mounting plate is fixedly provided at the bottom of the rear end of the detection head, a magnetic mounting block is fixedly provided on the rear side of the mounting plate, a mounting box is fixedly provided on the frame corresponding to the mounting block, the front end of the mounting box is open, a plurality of electromagnets are fixedly provided on the inner wall of the rear end, an electric push rod is vertically provided on the outer top, the telescopic end of the electric push rod is upward and fixedly connected to the top plate, and the left and right sides of the bottom of the top plate are vertically provided with A plurality of plug-in boards, each of the top and bottom parts of the installation box corresponding to the plug-in boards is provided with a through slot for the plug-in boards to pass through, the installation block is plugged into the installation box and can be magnetically connected to the electromagnet, the installation block corresponding to the plug-in board is provided with a through hole for the plug-in board to pass through, when the telescopic end of the electric push rod is in a retracted state, the bottom end of the plug-in board can pass through the through slot and the through hole to the bottom of the installation box, support plates are vertically provided on the top and bottom parts of the detection heads on the left and right sides of the yarn passing channel, a guide plate is detachably connected between the ends of the two support plates on the same end away from the detection head, and a guide through hole is provided at the position of the guide plate corresponding to the yarn passing channel.

[0005] Preferably, the mounting block is compatible with the mounting box.

[0006] Preferably, the electromagnet is a de-energized permanent magnetic chuck electromagnet.

[0007] Preferably, the through slots and through holes are compatible with corresponding plug-in boards.

[0008] Preferably, both left and right ends of the guide plate are fixedly connected to corresponding support plates by butterfly bolts.

[0009] Preferably, two cleaning plates are provided on the side of the guide plate away from the detection head, the two cleaning plates are symmetrically distributed on the left and right sides of the guide through hole, and brushes are provided on the opposite sides of the two cleaning plates, and the two brushes are symmetrically distributed and relatively abutted.

[0010] The beneficial effects of the utility model are as follows: the utility model has a reasonable design and a simple structure. When installing the detection head, it is only necessary to first generate a magnetic attraction to the mounting block by turning on and off the circuit of the electromagnet, and then align the mounting block with the mounting box and plug it into place, so that it can be magnetically connected to the electromagnet, and the initial plug-in positioning and magnetic fixation of the mounting block can be achieved. Then, the electric push rod is operated to shrink its telescopic end, which can drive the top plate and the plug-in board to move down until the bottom of the plug-in board passes through the corresponding through groove and through hole to the bottom of the mounting box, and the mounting block can be further clamped and fixed, thereby completing the installation of the detection head, so that in the subsequent use process, the mounting block can be plugged in with the mounting box, magnetically connected with the electromagnet, and the clamping of multiple plug-in boards to the mounting block can be coordinated with each other, effectively ensuring the stability and reliability of the installation and fixation of the detection head, without affecting the normal operation of the detection head. When the detection head needs to be disassembled, it is only necessary to operate the electric push rod again to extend its telescopic end, so that the plug-in board can be moved out of the mounting box and the clamping of the mounting block can be released. Then, the electromagnet circuit is turned on and off again to make it lose its magnetic attraction to the mounting block, so that the mounting block can be easily pulled out of the mounting box to realize the disassembly of the original detection head. Compared with the original bolting and welding methods, the overall operation of this installation method is simpler and more convenient, saving time and effort. It does not affect the stability and firmness of the installation, and can realize the flexible, fast and convenient disassembly and assembly of the detection head, which is more conducive to the inspection and replacement of the detection head.

[0011] When using the detection head, the yarn is passed through the guide holes on the two guide plates and the yarn passage on the detection head in turn. During the detection process, the two guide holes cooperate with each other to effectively guide and constrain the yarn passing through the yarn passage, preventing the yarn from escaping from the yarn passage, and ensuring the normal and stable operation of the detection head. In addition, the detachable connection between the guide plate and the corresponding support plate allows the guide plate to be flexibly disassembled and replaced, making it easy to replace guide plates with guide holes of different sizes, so that the size of the corresponding guide holes can be ensured to be appropriate according to the thickness of the yarn being made, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a left-side structural schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the detection head of the utility model;

[0014] Figure 3 It is a rear view structural schematic diagram of the detection head of the utility model;

[0015] Figure 4 It is a left-side structural schematic diagram of the detection head of the utility model;

[0016] Figure 5 It is a schematic diagram of the top view of the detection head of the utility model;

[0017] Figure 6 It is a schematic diagram of the main structure of the support plate and the guide plate of the utility model;

[0018] Figure 7 This is a schematic diagram of the main structure of the installation box of the utility model;

[0019] Figure 8 It is a left-side structural schematic diagram of the installation box of the utility model.

[0020] The numbers in the figure are: 1 is a frame, 2 is a detection head, 3 is a yarn passing channel, 4 is a mounting plate, 5 is a mounting block, 6 is a mounting box, 7 is an electromagnet, 8 is an electric push rod, 9 is a top plate, 10 is a plug-in plate, 11 is a through slot, 12 is a through hole, 13 is a support plate, 14 is a guide plate, 15 is a guide through hole, 16 is a butterfly bolt, 17 is a cleaning plate, and 18 is a brush. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0022] like Figures 1 to 8 As shown, a spinning yarn clearer for cotton yarn for a knitting machine comprises a detection head 2 mounted on a frame 1 of a spinning machine, and a U-shaped yarn passage 3 is provided at the front end of the detection head 2. A mounting plate 4 is fixedly provided at the bottom of the rear end of the detection head 2, and a magnetic mounting block 5 is fixedly provided on the rear side of the mounting plate 4, and a mounting box 6 is fixedly provided on the frame 1 corresponding to the mounting block 5. The front end of the mounting box 6 is open, a plurality of electromagnets 7 are fixedly provided on the inner wall of the rear end, and an electric push rod 8 is vertically provided on the outer top, the telescopic end of the electric push rod 8 faces upward and is fixedly connected to a top plate 9, and a plurality of plug-in boards 10 are vertically provided on the left and right sides of the bottom of the top plate 9, and through grooves 11 for the plug-in boards 10 to pass through are provided on the top and bottom parts of the mounting box 6 corresponding to the plug-in boards 10. The mounting block 5 is plugged into the mounting box 6 and can be magnetically connected to the electromagnet 7. A through hole 12 for the plug-in board 10 to pass through is provided on the mounting block 5 corresponding to the plug-in board 10. When the telescopic end of the electric push rod 8 is in a retracted state, the bottom end of the plug-in board 10 can pass through the through slot 11 and the through hole 12 to the bottom of the mounting box 6. Support plates 13 are vertically provided on the top and bottom of the detection head 2 on the left and right sides of the yarn passage 3. A guide plate 14 is detachably connected between the ends of the two support plates 13 on the same end that are away from the detection head 2. A guide through hole 15 is provided at the position of the guide plate 14 corresponding to the yarn passage 3.

[0023] When installing the detection head, it is only necessary to first generate magnetic attraction to the mounting block 5 by turning on and off the circuit of the electromagnet 7, and then align the mounting block 5 with the mounting box 6 and plug it into place, so that it can be magnetically connected with the electromagnet 7, and the initial plug-in positioning and magnetic fixation of the mounting block 5 can be achieved. Next, the electric push rod 8 is operated to shrink its telescopic end, which can drive the top plate 9 and the plug-in board 10 to move downward until the bottom end of the plug-in board 10 passes through the corresponding through groove 11 and through hole 12 to the bottom of the mounting box 6, and the mounting block 5 can be further clamped and fixed, thereby completing the installation of the detection head 2, so that in the subsequent use process, the mounting block 5 can be plugged into the mounting box 6, the magnetic connection with the electromagnet 7, and the clamping of multiple plug-in boards 10 to the mounting block 5 can be coordinated with each other, effectively ensuring the stability and reliability of the installation and fixation of the detection head 2, without affecting the normal operation of the detection head 2. When the detection head 2 needs to be disassembled, it is only necessary to operate the electric push rod 8 again to extend its telescopic end, which can drive the installation box 6 on the plug-in board 10 to remove the clamping of the installation block 5. Then, by again disconnecting the circuit of the electromagnet 7 so that it loses its magnetic attraction to the installation block 5, the installation block 5 can be easily pulled out of the installation box 6 to realize the disassembly of the original detection head 2. Compared with the original bolting and welding methods, the overall operation of this installation method is simpler, more convenient, and saves time and effort. It does not affect the stability and firmness of the installation, and can realize the flexible, quick and convenient disassembly and assembly of the detection head 2, which is more conducive to the inspection and replacement of the detection head 2. Other related structures not shown and described on the detection head 2 can all adopt the existing technology, and its more specific structure and working principle are all existing technology, which will not be described in detail here. The installation block 5 can be made of existing iron or other magnetic metal materials;

[0024] When the detection head 2 is used, the yarn is passed through the guide holes 15 on the two guide plates 14 and the yarn passage 3 on the detection head 2 in sequence. During the detection process, the two guide holes 15 cooperate with each other to effectively guide and constrain the yarn passing through the yarn passage 3, thereby preventing the yarn from being disengaged from the yarn passage 3, and ensuring the normal and stable operation of the detection head 2. In addition, the detachable connection between the guide plate 14 and the corresponding support plate 13 allows the guide plate 14 to be flexibly disassembled and replaced, and is convenient for replacing the guide plate 14 with guide holes 15 of different sizes, so that the size of the corresponding guide hole 15 can be ensured to be appropriate according to the thickness of the yarn to be made, which is more practical.

[0025] In this embodiment, the installation block 5 is matched with the installation box 6 to ensure smooth plug-in installation between the two.

[0026] In this embodiment, the electromagnet 7 can be a conventional de-energized permanent magnetic suction cup electromagnet. This type of electromagnet is a retaining suction cup electromagnet, which is suitable for environments that require long-term suction. Compared with ordinary electromagnets that generate magnetism when powered on and de-energize when powered off, it is just the opposite. It has the characteristics of de-energizing when powered on and magnetizing when powered off, which can reduce the use of electricity. When it is specifically used in this device, it is only necessary to keep the electromagnet 7 in a de-energized state during the installation and use of the detection head 2 to achieve magnetic fixation of the detection head 2. When the detection head 2 needs to be disassembled, it is only necessary to remove the installation box 6 from the plug board 10, and then energize the electromagnet 7 to make it lose its magnetic attraction to the mounting block 5, so that the mounting block 5 can be easily pulled out of the mounting box 6, so as to achieve convenient disassembly and assembly of the detection head 2.

[0027] In this embodiment, the through slot 11 and the through hole 12 are both matched with the corresponding plug-in board 10 to ensure that the plug-in board 10 is smoothly clamped and fixed to the mounting block 5 .

[0028] In this embodiment, both left and right ends of the guide plate 14 are fixedly connected to the corresponding support plate 13 by butterfly bolts 16, so that the guide plate 14 can be easily and quickly disassembled and assembled, so as to facilitate the replacement of the guide plate 14 with guide holes 15 of different sizes, so that the size of the corresponding guide holes 15 can be ensured to be appropriate according to the thickness of the yarn to be made. The butterfly bolts 16 can be made of existing technology, which has the advantages of convenient hand-tightening operation, and is more convenient to cooperate with to realize the convenient disassembly and assembly of the guide plate 14.

[0029] In this embodiment, two cleaning plates 17 are provided on the side of the guide plate 14 away from the detection head 2. The two cleaning plates 17 are symmetrically distributed on the left and right sides of the guide through hole 15 and brushes 18 are provided on the opposite sides of the two cleaning plates 17. The two brushes 18 are symmetrically distributed and relatively abutted, so that during use, no matter whether the yarn passes through the yarn channel 3 and the guide through hole 15 from top to bottom or from bottom to top, the surface of the yarn can be cleaned by the corresponding brushes 18 before the yarn passes through the yarn channel 3, which can effectively remove the fluff and other debris on the yarn, ensure the cleanliness of the yarn, do not affect the detection accuracy of the detection head 2, and better ensure the detection quality.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spinning yarn clearer for cotton yarn for a knitting machine, comprising a detection head mounted on a frame of a spinning machine, wherein a U-shaped yarn passage is provided at the front end of the detection head, wherein: A mounting plate is fixedly arranged at the bottom of the rear end of the detection head, a magnetic mounting block is fixedly arranged on the rear side of the mounting plate, a mounting box is fixedly arranged on the frame corresponding to the mounting block, the front end of the mounting box is open, a plurality of electromagnets are fixedly arranged on the inner wall of the rear end, an electric push rod is vertically arranged on the outer top, the telescopic end of the electric push rod faces upward and is fixedly connected to the top plate, a plurality of plug-in boards are vertically arranged on the left and right sides of the bottom of the top plate, and through grooves for the plug-in boards to pass through are opened on the top and bottom parts of the mounting box corresponding to the plug-in boards, The mounting block is plugged into the mounting box and can be magnetically connected to the electromagnet, a through hole for the plug-in board to pass through is provided on the mounting block corresponding to the plug-in board, and when the telescopic end of the electric push rod is in a retracted state, the bottom end of the plug-in board can pass through the through groove and the through hole to the bottom of the mounting box, support plates are vertically provided on the top and bottom parts of the detection heads on the left and right sides of the yarn passing channel, and a guide plate is detachably connected between the ends of the two support plates on the same end away from the detection heads, and a guide through hole is provided at the position of the guide plate corresponding to the yarn passing channel.

2. The spinning yarn clearer for cotton yarn for knitting machines according to claim 1, characterized in that: The mounting block is matched with the mounting box.

3. The spinning yarn clearer for cotton yarn for knitting machines according to claim 1, characterized in that: The electromagnet is a power-off type permanent magnetic chuck type electromagnet.

4. The spinning yarn clearer for cotton yarn for knitting machines according to claim 1, characterized in that: The through slots and through holes are both matched with corresponding plug-in boards.

5. The spinning yarn clearer for cotton yarn for knitting machines according to claim 1, characterized in that: The left and right ends of the guide plate are fixedly connected to the corresponding support plates through butterfly bolts.

6. The spinning yarn clearer for cotton yarn for knitting machines according to claim 1, characterized in that: Two cleaning plates are arranged on the side of the guide plate away from the detection head. The two cleaning plates are symmetrically distributed on the left and right sides of the guide through hole. Brushes are arranged on the opposite sides of the two cleaning plates. The two brushes are symmetrically distributed and relatively abutted.

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