A transmission mechanism that prevents the entry of many types of foreign matter and operates continuously and stably for a long time

Abstract

The present invention discloses a transmission mechanism that can prevent many types of foreign matter from entering and can operate continuously and stably for a long time, and relates to the field of non-woven fabric production line equipment. The present invention retains the design of the original transmission component that conducts the positive and negative poles of the power supply after contacting metal foreign matter, which can prevent metal foreign matter from entering the carding machine; the present invention can also prevent non-metallic foreign matter from entering the carding machine through the inclined arrangement of the U-shaped slide frame and the addition of a displacement detection component. Therefore, the present invention can prevent many types of foreign matter from entering the carding machine, reduce equipment failure rate and loss, improve production efficiency, and improve product quality. At the same time, the present invention adds a metal sprocket sleeve as a transition connector between the cotton feeding roller and the sprocket seat to solve the problem that the sprocket seat made of non-metallic insulating material is easily damaged and broken during high speed and high production, ensure the cotton feeding roller to rotate continuously and stably for a long time and the normal feeding of large amounts of mat cotton, improve the stability and reliability of the transmission, extend the service life of the transmission mechanism, and improve the production efficiency of the production line.

Description

Technical Field

[0001] The invention relates to the technical field of nonwoven fabric production line equipment, in particular to a transmission mechanism which can prevent multiple types of foreign matter from entering and can operate continuously and stably for a long time. Background Art

[0002] With the improvement of people's living standards, the output of domestic non-woven fabric production lines is getting higher and higher, and at the same time, the requirements for product quality are also getting higher and higher. The continuous operation stability of non-woven fabric production lines has a great impact on the output. Among them, the entry of foreign matter in the entire production process is the key factor causing the production line to stop. Once a large piece of hard foreign matter enters the carding process, it will cause abnormal shutdown and affect production efficiency at the least; it will damage the equipment and bring huge economic losses to customers; at the same time, when foreign matter enters the carding machine, it will damage the card clothing, affect the fiber web quality of the carding machine, and ultimately affect the quality of the fabric surface. However, the existing carding machine cotton feeding roller transmission mechanism can basically only prevent metal foreign matter from entering the carding machine, and cannot prevent non-metallic foreign matter from entering the carding machine in time (see for details). Figure 1 、 Figure 2 、 Figure 3 ) - Since the existing upright slide frame 4' determines that the lifting direction of the cotton feed roller is the vertical direction, from a mechanical point of view, non-metallic foreign matter needs to overcome the sum of the cotton feed roller's own gravity and the pressure applied by the spring to lift it, which makes it difficult for the cotton feed roller to slide in the vertical direction. In this way, when non-metallic foreign matter is mixed in the cotton mat, the cotton feed roller cannot be lifted up in time and a feedback signal cannot be given. Foreign matter with greater hardness will damage the cotton feed plate, cotton feed roller and needle clothing, which will not only damage the equipment, but also reduce production efficiency. At the same time, the quality of the fiber web and the cloth surface will be poor, causing economic losses to customers.

[0003] In addition, as the output of the non-woven fabric production line increases, the load on the cotton feed roller also increases, resulting in a larger torque on the sprocket seat 11' directly connected to the cotton feed roller. In addition, the sprocket seat 11' directly connected to the cotton feed roller is made of non-metallic insulating material, and the sprocket seat has a weak ability to withstand torque. The keyway of the sprocket seat is easily broken under the action of large torque, causing the cotton feed roller to lose transmission power, resulting in an emergency alarm and shutdown of the carding machine. Therefore, the stability and reliability of the traditional transmission mechanism are low, and it cannot operate for a long time. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies in the above-mentioned prior art and to provide a transmission mechanism that prevents the entry of multiple types of foreign matter and operates continuously and stably for a long time. The present invention can not only prevent metal foreign matter from entering the carding machine, but also prevent non-metal foreign matter from entering the carding machine, thereby reducing equipment failure rate and loss, improving equipment safety and stability, improving production efficiency, and improving product quality and quality stability; at the same time, the present invention solves the technical problem that the sprocket seat made of non-metallic insulating material is easily damaged and broken due to large torque during high speed and high production, ensures the continuous and stable rotation of the cotton feeding roller for a long time and the normal feeding of large amounts of mat cotton, improves the stability and reliability of the transmission, extends the service life of the transmission mechanism, improves the production efficiency of the production line, and realizes long-term continuous and stable operation of the production line.

[0005] The present invention can be implemented by adopting the following technical measures:

[0006] The transmission mechanism of the present invention, which can prevent multiple types of foreign matter from entering and can operate stably and continuously for a long time, comprises two horizontal racks symmetrical on the left and right (the horizontal racks are the installation bases of the cotton feeding plate and the U-shaped slide rack), and two U-shaped slide racks arranged above the two horizontal racks in an inclined manner (the U-shaped slide racks are the installation bases of the cotton feeding rollers on one hand; on the other hand, they serve as sliding guides after the cotton feeding rollers are lifted up. At the same time, since the U-shaped slide racks are arranged in an inclined manner, if non-metallic foreign matter is mixed in the cotton mat passing through the gradual change area of the opening, the harder and larger non-metallic foreign matter can more easily push the cotton feeding rollers away. Slightly lifted, and more easily drive the insulating seat to move obliquely upward along the U-shaped slide frame - that is, it can improve the sensitivity of responding to non-metallic foreign matter, and under the cooperation of the detection piece and displacement sensor, it can sensitively respond and promptly feedback to the external control system to shut down the machine, so that it can timely prevent non-metallic foreign matter from entering the carding machine, protect the equipment from damage, reduce the equipment failure rate and loss, improve the safety and stability of the equipment, improve production efficiency, and improve product quality and quality stability). The ends of the two shafts are installed by rolling bearings I, bearing seats, and insulating seats that are embedded from the inside to the outside. The feeding roller is installed in the inner cavity of the U-shaped slide frame at the corresponding end and is connected to the positive pole of the power supply (in normal and stable production status, the positive and negative poles of the DC power supply are not conductive, that is, the feeding roller and the feeding plate are not conductive. The feeding roller rotates synchronously with the motor. A layer of card clothing arranged on the surface of the feeding roller grabs the matting cotton located in the opening gradient area between the feeding roller and the feeding plate while rotating and feeds it to the licker-in roller. At this point, the matting cotton smoothly enters the carding machine to be carded into a web. When the matting cotton passes through the opening gradient area between the feeding roller and the feeding plate, if there is metal foreign matter mixed in the matting cotton, the positive pole of the DC power supply and the positive pole of the DC power supply will be connected. Negative circuit conduction - the cotton feeding roller and the cotton feeding plate are connected, triggering the alarm to stop, so that metal foreign objects can be prevented from entering the carding machine in time, protecting the equipment from damage, reducing equipment failure rate and loss, improving equipment safety and stability, improving production efficiency, and improving product quality and quality stability), the cotton feeding plate that is overlapped between the two horizontal frames, wraps the arc at the bottom of the cotton feeding roller in an opening gradient manner, and is connected to the negative pole of the power supply (the opening gradient area between the cotton feeding plate and the cotton feeding roller is the entrance for feeding the mat cotton to the licker-in roller, and then the mat cotton will smoothly enter the carding machine to be combed into a web.At the same time, the cotton feeding roller and the cotton feeding plate are connected to the positive and negative poles of the DC power supply respectively. In the normal and stable production state, the two are not conductive. When metal foreign matter is mixed in the mat cotton passing through the opening gradient area, the two are conductive and trigger an alarm to stop the machine). A metal sprocket sleeve and a chain transmission assembly are connected to one shaft end of the cotton feeding roller in a key-connected manner (the present invention adds a metal sprocket sleeve as a transition connector between the cotton feeding roller and the sprocket seat, which solves the technical problem that the sprocket seat made of non-metallic insulating material is easily damaged and broken due to the large torque at high speed and high production, ensures the continuous and stable rotation of the cotton feeding roller for a long time and the normal feeding of large amounts of mat cotton, improves the stability and reliability of the transmission, and extends the service life of the transmission mechanism. , which improves the production efficiency of the production line and realizes long-term continuous and stable operation of the production line); Slide rail embedding grooves are respectively opened on the left and right ends of the insulating seat, and the insulating seat is embedded in the inner cavity of the U-shaped slide frame with the help of the slide rail embedding grooves. The insulating seat rolls relative to the bottom of the slide rail embedding groove through the rolling bearing II installed on the U-shaped slide frame to realize the sliding of the insulating seat along the length direction of the U-shaped slide frame (when non-metallic foreign matter is mixed in the mat cotton passing through the opening gradient area, the harder and larger non-metallic foreign matter will slightly lift the cotton feeding roller, and the cotton feeding roller drives the insulating seat to move obliquely upward along the U-shaped slide frame), and a pressure plate is buckled on the upper open end of the U-shaped slide frame (on the one hand, it serves as the installation base and reaction force support base of the disc spring group). The U-shaped slide frame has a base and a support plate, and the U-shaped slide frame has a base and a support plate. The ... In this state, the free end of the detection piece is in contact with the bottom surface of the insulating seat, and a displacement sensor is installed on the support plate (the detection piece in contact with the bottom surface of the insulating seat moves in the opposite direction under the action of the tension spring and the connecting plate - moves diagonally downward, and at the same time amplifies the displacement signal of the cotton feeding roller. The amplified displacement signal is detected by the displacement sensor and fed back to the external control system in time, and then the external control system sends a stop command to the motor, so that the cotton feeding roller stops rotating synchronously, so that non-metallic foreign matter can be prevented from entering the carding machine in time, thereby protecting the equipment from damage, reducing equipment failure rate and loss, improving equipment safety and stability, improving production efficiency, and improving product quality and quality stability).

[0007] The U-shaped slide frame of the present invention is a U-shaped frame composed of two parallel and right-inclined slide rails and a bottom crossbeam.

[0008] The chain transmission assembly of the present invention includes a sprocket seat and a driven sprocket which are sequentially nested and connected with the metal sprocket sleeve (the sprocket seat is used to install and support the metal sprocket sleeve and the driven sprocket. The driven sprocket rotates under the drive of the motor and the transmission of the chain transmission assembly, and at the same time drives the sprocket seat, the metal sprocket sleeve and the cotton feeding roller to rotate synchronously), a chain, a driving sprocket and a motor which are sequentially connected with the driven sprocket (under the drive of the motor, the power is transmitted to the driven sprocket through the driving sprocket and the chain); the metal sprocket sleeve and the sprocket seat, and the sprocket seat and the driven sprocket are all connected The connection method is matched with bolts and flanges (smooth transmission, easy disassembly and replacement); the sprocket seat and the insulating seat are made of insulating materials. In normal and stable production conditions, the motor, the cotton feeding plate and the cotton feeding roller are all insulated (because the sprocket seat is made of insulating material, the motor and the cotton feeding roller are insulated from each other; because the insulating seat is made of insulating material, the cotton feeding roller and the cotton feeding plate are all insulated. That is, in normal and stable production conditions, the motor, the cotton feeding plate and the cotton feeding roller are all insulated).

[0009] In the present invention, the surface of the feed roller is wrapped with a layer of card clothing (grabbing the matting cotton in the opening gradient area and feeding it to the licker-in roller as the feed roller rotates, so that the matting cotton can smoothly enter the carding machine to be carded into a web).

[0010] The working principle of the present invention is as follows:

[0011] The present invention retains the original design of the transmission component that conducts the positive and negative poles of the power supply after contacting metal foreign matter, which can effectively prevent metal foreign matter from entering the carding machine; the present invention can also prevent non-metal foreign matter from entering the carding machine through the inclined arrangement of the U-shaped slide frame and the addition of a displacement detection component. Therefore, the present invention can prevent many types of foreign matter from entering the carding machine, thereby reducing the equipment failure rate and loss, improving the safety and stability of the equipment, improving production efficiency, and improving product quality and quality stability. At the same time, the present invention adds a metal sprocket sleeve as a transition connector between the cotton feeding roller and the sprocket seat, which solves the technical problem that the sprocket seat made of non-metallic insulating material is easily damaged and broken due to the large torque at high speed and high production, ensures the continuous and stable rotation of the cotton feeding roller for a long time and the normal feeding of large amounts of mat cotton, improves the stability and reliability of the transmission, extends the service life of the transmission mechanism, improves the production efficiency of the production line, and realizes long-term continuous and stable operation of the production line.

[0012] More specifically, during normal and stable production, the motor and feed roller are insulated from each other because the sprocket seat is made of insulating material. Similarly, the feed roller and feed plate are insulated because the insulating seat is made of insulating material. That is, during normal and stable production, the motor, feed plate, and feed roller are all insulated, and the positive and negative poles of the DC power supply are disconnected—that is, the feed roller and feed plate are disconnected. Driven by the motor, and driven by the driving sprocket, chain, driven sprocket, sprocket seat, and metal sprocket sleeve, the feed roller rotates synchronously. Simultaneously, a large amount of dense, thick matting cotton, wrapped in a layer of card clothing on the surface of the feed roller, is gripped and enters the opening gradient area between the feed roller and the feed plate. The matting cotton is then fed to the licker-in roller, from which it smoothly enters the carding machine to be carded into a web.

[0013] When metal foreign matter is mixed into the mat cotton passing through the opening gradient area between the feed roller and the feed plate, the positive and negative circuits of the DC power supply are connected - the feed roller and the feed plate are connected, triggering an alarm to stop the machine. This can prevent metal foreign matter from entering the carding machine in time, protect the equipment from damage, reduce equipment failure rate and loss, improve equipment safety and stability, improve production efficiency, and improve product quality and quality stability.

[0014] When non-metallic foreign matter is mixed in the mat cotton passing through the opening gradient area, since the U-shaped slide frame is arranged in an inclined manner, the harder and larger non-metallic foreign matter can more easily lift the cotton feeding roller slightly and more easily drive the insulating seat to move diagonally upward along the U-shaped slide frame - that is, it can improve the sensitivity to non-metallic foreign matter; at the same time, the detection piece in contact with the bottom surface of the insulating seat moves in the opposite direction under the action of the tension spring and the connecting plate - it moves diagonally downward, and at the same time amplifies the displacement signal of the cotton feeding roller, and the amplified displacement signal is detected by the displacement sensor and fed back to the external control system in time, and then the external control system sends a stop command to the motor, so that the cotton feeding roller stops rotating synchronously, so that non-metallic foreign matter can be prevented from entering the carding machine in time, the equipment can be protected from damage, the equipment failure rate and loss can be reduced, the safety and stability of the equipment can be improved, the production efficiency can be improved, and the product quality and quality stability can be improved.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention can not only prevent metal foreign matter from entering the carding machine, but also prevent non-metal foreign matter from entering the carding machine, thereby reducing equipment failure rate and loss, improving equipment safety and stability, improving production efficiency, and improving product quality and quality stability; at the same time, the present invention solves the technical problem that the sprocket seat made of non-metallic insulating material is easily damaged and broken due to large torque during high speed and high production, ensures the cotton feeding roller to rotate continuously and stably for a long time and the normal feeding of large amounts of mat cotton, improves the stability and reliability of the transmission, extends the service life of the transmission mechanism, improves the production efficiency of the production line, and realizes long-term continuous and stable operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the structural front view of the transmission mechanism of the cotton feeding roller of the existing traditional carding machine.

[0018] Figure 2 For Figure 1 Left side view after removing the chain drive components.

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure in which the middle feed roller and the sprocket seat are directly connected.

[0020] Figures 1 to 3 Special part number description (with Figures 4 to 12 1', sprocket seat directly connected to the feed roller.

[0021] Figure 4 It is the structural front view of the present invention.

[0022] Figure 5 yes Figure 4 A-direction sectional view in.

[0023] Figure 6 for Figure 4 BB cross-section view in.

[0024] Figure 7 for Figure 5 A partial enlarged view of point Ⅰ in the middle.

[0025] Figure 8 for Figure 7 CC section view in.

[0026] Figure 9 yes Figure 4 Schematic diagram of the structure connecting the middle feed roller, metal sprocket sleeve and sprocket seat.

[0027] Figure 10 It is a structural schematic diagram of the insulating seat in the present invention.

[0028] Figure 11 yes Figure 10 Top view of .

[0029] Figure 12 It is a schematic diagram of the working position of the present invention when used in a production line.

[0030] Figures 4 to 12 Explanation of the part numbers: 1. Driven sprocket; 2. Insulation seat; 2-1. Slide rail slot; 3. Feed roller; 4. U-shaped slide frame; 4-1. Slide rail; 4-2. Bottom crossbeam; 5. Horizontal frame; 6. Feed plate; 7. Mat cotton; 8. Bearing seat; 9. Rolling bearing I; 10. Metal sprocket sleeve; 11. Sprocket seat; 12. Motor; 13. Disc spring assembly; 14. Displacement sensor; 15. Detection piece; 16. Tension spring; 17. Connecting plate; 18. Card clothing; 19. Support plate; 20. Rolling bearing II; 21. Pressing plate; 22. Driving sprocket; 23. Chain; 24. Key; 25. Taker-in roller; E. Air pressure cotton box; F. Conveyor curtain; M. This device; S. Carding machine. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] like Figures 4 to 12As shown, the transmission mechanism of the present invention, which can prevent the entry of various types of foreign matter and can operate stably and continuously for a long time, comprises two bilaterally symmetrical horizontal frames 5 (the horizontal frames 5 are the installation bases of the cotton feeding plate 6 and the U-shaped slide frame 4), and two U-shaped slide frames 4 arranged above the two horizontal frames 5 in an inclined manner (the U-shaped slide frames 4 are the installation bases of the cotton feeding roller 3 on the one hand;On the other hand, it serves as a sliding guide for the cotton feeding roller 3 after it is lifted up. At the same time, since the U-shaped slide frame 4 is arranged in an inclined manner, if non-metallic foreign matter is mixed into the matting cotton 7 passing through the opening gradient area, the harder and larger non-metallic foreign matter can more easily lift the cotton feeding roller 3 slightly and more easily drive the insulating seat 2 to move diagonally upward along the U-shaped slide frame 4 - that is, it can improve the sensitivity to non-metallic foreign matter, and with the cooperation of the detection piece 15 and the displacement sensor 14, it can sensitively sense and promptly feedback to the external control system to shut down the machine, so as to timely prevent non-metallic foreign matter from entering the carding machine, protect the equipment from damage, reduce equipment failure rate and loss, improve equipment safety and stability, improve production efficiency, and improve product quality and quality stability). The feeding roller 3 is installed in the inner cavity of the U-shaped slide frame at the corresponding end through the rolling bearing Ⅰ9, bearing seat 8, and insulating seat 2 which are embedded in sequence from the inside to the outside, and is connected to the positive pole of the power supply (in normal and stable production state, the positive and negative poles of the DC power supply are not conductive - that is, the feeding roller 3 and the feeding plate 6 are not conductive, and the feeding roller 3 rotates synchronously with the motor 12. A layer of card clothing 18 arranged on the surface of the feeding roller 3 grabs the mat cotton 7 located in the opening gradient area between the feeding roller 3 and the feeding plate 6 while rotating and feeds it to the licker-in roller 25. At this point, the mat cotton 7 smoothly enters the carding machine to be carded into a web. When the mat cotton 7 passes through the opening gradient area between the feeding roller 3 and the feeding plate 6, if there is metal foreign matter mixed in the mat cotton 7, the positive pole of the DC power supply and The negative circuit is turned on - the cotton feeding roller 3 and the cotton feeding plate 6 are turned on, triggering the alarm to stop, so that metal foreign objects can be prevented from entering the carding machine in time, the equipment can be protected from damage, the equipment failure rate and loss can be reduced, the safety and stability of the equipment can be improved, the production efficiency can be improved, the product quality and quality stability can be improved), the cotton feeding plate 6 is connected between the two horizontal frames 5, wraps the arc at the bottom of the cotton feeding roller in an opening gradient manner, and is connected to the negative pole of the power supply (the opening gradient area between the cotton feeding plate 6 and the cotton feeding roller 3 is the entrance for the mat cotton 7 to be fed into the licker-in roller 25, and then the mat cotton 7 will smoothly enter the carding machine to be combed into a web. At the same time, the cotton feeding roller 3 and the cotton feeding plate 6 are respectively connected to the positive and negative poles of the DC power supply. In normal and stable production conditions, the two are in a state of (The present invention adds a metal sprocket sleeve 10 as a transition piece between the feed roller 3 and the sprocket seat 11, solving the technical problem of the sprocket seat 11 made of non-metallic insulating material being easily damaged and broken due to high torque at high speed and high production. This ensures the long-term continuous and stable rotation of the feed roller 3 and the normal feeding of large amounts of mat cotton 7, improves the stability and reliability of the transmission, extends the service life of the transmission mechanism, improves the production efficiency of the production line, and realizes long-term continuous and stable operation of the production line.)Slide rail embedding grooves 2-1 are respectively provided on the left and right end sides of the insulating seat 2. The insulating seat 2 is embedded in the inner cavity of the U-shaped slide frame with the help of the slide rail embedding grooves 2-1. The insulating seat 2 slides along the length direction of the U-shaped slide frame through the rolling bearing II 20 installed on the U-shaped slide frame and the bottom of the slide rail embedding groove 2-1 (when non-metallic foreign matter is mixed in the mat cotton 7 passing through the opening gradient area, the harder and larger non-metallic foreign matter will slightly lift the cotton feeding roller 3, and the cotton feeding roller 3 will drive the insulating seat 2 to move obliquely upward along the U-shaped slide frame 4); The upper open end of the U-shaped slide frame 4 is fastened with a pressure plate 21 (on the one hand, it serves as the installation base and reaction force support base of the disc spring group 13; on the other hand, it connects the free ends of the two slide rails 4-1 and forms an integral large rigidity frame with the U-shaped slide frame 4). A disc spring group 13 is installed between the pressure plate 21 and the top surface of the insulating seat 2 (the pressure plate 21 presses the disc spring group 13, and the disc spring group 13 presses the insulating seat 2 to prevent the cotton feed roller 3 from moving up in normal working state, ensuring that the cotton feed roller 3 can fully squeeze, contact and smoothly grab the mat cotton 7 in the opening gradient area to enter the combing state under normal working state Machine); A connecting plate 17 and a support plate 19 are installed at the bottom end of one side surface of the U-shaped slide frame 4 (the connecting plate 17 is the installation base of the tension spring 16 and the detection piece 15; the support plate 19 is the installation base of the displacement sensor 14), and a tension spring 16 with the other end connected to the detection piece 15 is hung on the connecting plate 17. When the cotton feeding roller 3 rotates normally to feed the mat cotton 7, the free end of the detection piece 15 is hung in contact with the bottom surface of the insulating seat 2, and the displacement sensor 14 is installed on the support plate 19 (the detection piece 15 in contact with the bottom surface of the insulating seat 2 is hung in contact with the tension spring Under the action of the spring 16 and the connecting plate 17, the feed roller 3 moves in the opposite direction—moving diagonally downward. At the same time, the displacement signal of the feed roller 3 is amplified. The amplified displacement signal is detected by the displacement sensor 14 and promptly fed back to the external control system. The external control system then issues a stop command to the motor 12, causing the feed roller 3 to stop rotating synchronously. This can promptly prevent non-metallic foreign matter from entering the carding machine, protect the equipment from damage, reduce equipment failure rate and loss, improve equipment safety and stability, improve production efficiency, and improve product quality and quality stability.

[0033] The U-shaped slide frame 4 of the present invention is a U-shaped frame composed of two parallel and right-inclined slide rails 4-1 and a bottom crossbeam 4-2.

[0034] The chain drive assembly of the present invention includes a sprocket seat 11 and a driven sprocket 1 which are sequentially nested and connected with the metal sprocket sleeve 10 (the sprocket seat 11 is used to install and support the metal sprocket sleeve 10 and the driven sprocket 1. The driven sprocket 1 rotates under the drive of the motor 12 and the drive of the chain drive assembly, and at the same time drives the sprocket seat 11, the metal sprocket sleeve 10, and the cotton feeding roller 3 to rotate synchronously), a chain 23, a driving sprocket 22, and a motor 12 which are sequentially connected with the driven sprocket 1 (under the drive of the motor 12, the power is transmitted to the driven sprocket 1 through the driving sprocket 22 and the chain 23); the metal sprocket sleeve 10 and the sprocket seat 11, the sprocket seat 11 The connection between the driven sprocket 1 is achieved through bolts and flanges (smooth transmission, easy disassembly and replacement); the sprocket seat 11 and the insulating seat 2 are made of insulating materials, and the motor 12, the cotton feeding plate 6, and the cotton feeding roller 3 are all insulated in the normal and stable production state (because the sprocket seat 11 is made of insulating material, the motor 12 and the cotton feeding roller 3 are insulated from each other; because the insulating seat 2 is made of insulating material, the cotton feeding roller 3 and the cotton feeding plate 6 are insulated. That is, in the normal and stable production state, the motor 12, the cotton feeding plate 6, and the cotton feeding roller 3 are all insulated).

[0035] In the present invention, the surface of the feed roller 3 is wrapped with a layer of card clothing 18 (which grabs the matting cotton 7 in the opening gradient area and feeds it to the licker-in roller 25 as the feed roller 3 rotates, so that the matting cotton 7 can smoothly enter the carding machine to be carded into a web).

[0036] The specific use of the present invention is as follows:

[0037] First, assemble the present invention according to the above structural description and the positional relationship shown in the accompanying drawings; then, install the present invention in Figure 9 It can be used after it is in the working position shown in .

[0038] During normal and stable production, the motor 12 and the feed roller 3 are insulated from each other because the sprocket seat 11 is made of insulating material. The feed roller 3 and the feed plate 6 are also insulated because the insulating seat 2 is made of insulating material. That is, during normal and stable production, the motor 12, the feed plate 6, and the feed roller 3 are all insulated, and the positive and negative poles of the DC power supply are not conductive—that is, the feed roller 3 and the feed plate 6 are not conductive. Driven by the motor 12 and driven by the driving sprocket 22, the chain 23, the driven sprocket 1, the sprocket seat 11, and the metal sprocket sleeve 10, the feed roller 3 is driven to rotate synchronously. Simultaneously, a large amount of dense, thick matting 7 is gripped by a layer of card clothing 18 wrapped around the surface of the feed roller 3 and enters the open gradient area between the feed roller 3 and the feed plate 6. The matting 7 is then fed to the licker-in roller 25. From there, the matting 7 smoothly enters the carding machine for carding into a web.

[0039] When metal foreign matter is mixed into the mat cotton 7 passing through the opening gradient area between the cotton feeding roller 3 and the cotton feeding plate 6, the positive and negative circuits of the DC power supply are connected - the cotton feeding roller 3 and the cotton feeding plate 6 are connected, triggering an alarm to stop the machine. In this way, metal foreign matter can be prevented from entering the carding machine in time, protecting the equipment from damage, reducing equipment failure rate and loss, improving equipment safety and stability, improving production efficiency, and improving product quality and quality stability.

[0040] When non-metallic foreign matter is mixed in the mat cotton 7 passing through the opening gradient area, since the U-shaped slide frame 4 is arranged in an inclined manner, the harder and larger non-metallic foreign matter can more easily lift the cotton feeding roller 3 slightly and more easily drive the insulating seat 2 to move diagonally upward along the U-shaped slide frame 4 - that is, it can improve the sensitivity to non-metallic foreign matter; at the same time, the detection piece 15 that is in contact with the bottom surface of the insulating seat 2 moves in the opposite direction under the action of the tension spring 16 and the connecting plate 17 - moves diagonally downward, and at the same time amplifies the displacement signal of the cotton feeding roller 3, and the amplified displacement signal is detected by the displacement sensor 14 and fed back to the external control system in time, and then the external control system sends a stop command to the motor 12, so that the cotton feeding roller 3 stops rotating synchronously, so that non-metallic foreign matter can be prevented from entering the carding machine in time, the equipment can be protected from damage, the equipment failure rate and loss can be reduced, the safety and stability of the equipment can be improved, the production efficiency can be improved, and the product quality and quality stability can be improved.

[0041] At the same time, since the present invention adds a metal sprocket sleeve 10 as a transition connecting piece between the cotton feeding roller 3 and the sprocket seat 11, it solves the technical problem that the sprocket seat 11 made of non-metallic insulating material is easily damaged and broken due to the large torque at high speed and high production, ensures the cotton feeding roller 3 to rotate continuously and stably for a long time and the normal feeding of large amounts of mat cotton 7, improves the stability and reliability of the transmission, extends the service life of the transmission mechanism, improves the production efficiency of the production line, and realizes long-term continuous and stable operation of the production line.

Claims

1. A transmission mechanism that prevents the entry of multiple types of foreign matter and operates continuously and stably for a long time, characterized by: The transmission mechanism comprises two horizontal racks (5) that are symmetrical on both sides, two U-shaped slide racks (4) that are arranged above the two horizontal racks (5) in an inclined manner, two shaft ends are installed in the inner cavity of the U-shaped slide rack at the corresponding end through rolling bearings I (9), bearing seats (8), and insulating seats (2) that are sequentially embedded from the inside to the outside, and a cotton feed roller (3) that is connected to the positive pole of the power supply, a cotton feed plate (6) that is connected between the two horizontal racks (5), wraps around the arc at the bottom of the cotton feed roller in an opening gradient manner, and is connected to the negative pole of the power supply, and is connected to a shaft head of the cotton feed roller in a key (24). The insulating seat (2) is provided with a metal sprocket sleeve (10) and a chain transmission component connected to the ends; a slide rail clamping groove (2-1) is respectively opened on the left and right ends of the insulating seat (2); the insulating seat (2) is embedded in the inner cavity of the U-shaped slide frame with the help of the slide rail clamping groove (2-1); the insulating seat (2) slides along the length direction of the U-shaped slide frame by rolling relative to the bottom of the slide rail clamping groove (2-1) through the rolling bearing II (20) installed on the U-shaped slide frame; a pressure plate (21) is buckled on the upper open end of the U-shaped slide frame, and a disc spring is installed between the pressure plate (21) and the top surface of the insulating seat (2) A connecting plate (17) and a supporting plate (19) are installed at the bottom end of one side surface of the U-shaped slide frame (4), a tension spring (16) whose other end is connected to the detection piece (15) is hung on the connecting plate (17), and the free end of the detection piece (15) is in contact with the bottom surface of the insulating seat (2) when the cotton feeding roller (3) rotates normally to feed the mat cotton (7), and a displacement sensor (14) is installed on the supporting plate (19); the U-shaped slide frame (4) is a U-shaped frame composed of two parallel and right-inclined slide rails (4-1) and a bottom crossbeam (4-2); the chain The transmission assembly comprises a sprocket seat (11) nested and connected in sequence with the metal sprocket sleeve (10), a driven sprocket (1), a chain (23) connected in sequence with the driven sprocket (1), a driving sprocket (22), and a motor (12); the metal sprocket sleeve (10) and the sprocket seat (11), and the sprocket seat (11) and the driven sprocket (1) are connected by bolts and flanges; the sprocket seat (11) and the insulating seat (2) are made of insulating materials, and in a normal and stable production state, the motor (12), the cotton feeding plate (6), and the cotton feeding roller (3) are all in an insulating state.

2. The transmission mechanism according to claim 1, which is resistant to the entry of various foreign objects and operates stably and continuously for a long time, is characterized in that: A layer of card clothing (18) is wrapped on the surface of the cotton feeding roller (3).

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