Frequency conversion control device for broken end cotton suction fan of spinning frame

Abstract

The utility model discloses a spinning frame broken end cotton suction fan frequency conversion control device which comprises a power distribution box and a component installation plate connected to the middle end of the interior of the power distribution box through screws, and a frequency converter, a micro differential pressure sensor and an intelligent cotton suction fan control module are sequentially installed at the lower right end of the component installation plate from front to back. A heat dissipation assembly playing a water cooling role is arranged on the left side of the component mounting plate, a protection plate on the right side of the component mounting plate is rotationally connected to the right rear end of the power distribution box, first connecting blocks are embedded and connected to the front end of the protection plate in an up-and-down symmetrical mode, and mounting blocks are fixedly connected to the left end of the power distribution box in an up-and-down symmetrical mode. The left end of the mounting block is connected into the mounting groove in a clamped mode. According to the frequency conversion control device for the broken end cotton suction fan of the spinning frame, a power distribution box can be conveniently installed on the spinning frame, heat dissipation can be conveniently conducted on components, and meanwhile dust is prevented from falling on the components.

Description

Technical Field

[0001] This utility model relates to the technical field of frequency conversion control device for cotton breakage suction fan of spinning frame, specifically a frequency conversion control device for cotton breakage suction fan of spinning frame. Background Technology

[0002] As an indispensable component of the spinning machine, the cotton breakage suction fan plays a very important role in the spinning process. The frequency converter can control the cotton breakage suction fan, and there are many different types of frequency converter control devices for cotton breakage suction fans on the market.

[0003] For example, the utility model patent with authorization announcement number CN220204170U discloses a frequency conversion device for a cotton-suction fan on a JWF1566 spinning frame. The device includes a power distribution box, characterized by the addition of a 7.5kW frequency converter, a micro-differential pressure transmitter, and an intelligent cotton-suction fan control module within the power distribution box. The micro-differential pressure transmitter is connected to the frequency converter, and the frequency converter is connected to the intelligent cotton-suction fan control module. Based on the fundamental principles of cotton breakage on spinning frames and the thickness of the cotton layer adsorbed by the filter after breakage, this device utilizes frequency conversion technology and a micro-differential pressure constant pressure detection signal to successfully convert the fixed power frequency of the original 7.5kW motor into variable frequency operation, effectively reducing the energy consumption of the cotton-suction fan and achieving energy saving and consumption reduction.

[0004] Based on existing solutions and actual production and processing applications, current frequency conversion control devices for yarn breakage suction fans in spinning machines still have some problems. For example, the power distribution box is installed on the spinning machine with bolts, but this requires specific tools for operation. Frequent operation can easily damage the screws and bolt holes. In addition, the components inside the power distribution box generate heat during operation, and slow heat dissipation reduces the service life of the components. Furthermore, the components are exposed to the elements, making them susceptible to damage from dust. Therefore, we propose a frequency conversion control device for yarn breakage suction fans in spinning machines to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a frequency conversion control device for a cotton breakage suction fan in a spinning machine, so as to solve the problems mentioned in the background art, which are that the existing frequency conversion control devices for cotton breakage suction fans in spinning machines are not convenient to install the power distribution box on the spinning machine, are not convenient to dissipate heat from the components, and are prone to dust settling on the components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a frequency conversion control device for a cotton-suction fan on a spinning machine, comprising a power distribution box and a component mounting plate screwed to the middle of the box. The lower right end of the component mounting plate is equipped with a frequency converter, a micro-differential pressure sensor, and an intelligent cotton-suction fan control module, arranged sequentially from front to back.

[0007] Also includes:

[0008] The left side of the component mounting plate is provided with a heat dissipation component that serves as a water cooler, and the protective plate on the right side of the component mounting plate is rotatably connected to the right rear end of the power distribution box. The front end of the protective plate is symmetrically inlaid with first connecting blocks, and the left end of the power distribution box is symmetrically fixedly connected with mounting blocks.

[0009] The left end of the mounting block is engaged with the inside of the mounting groove, and the mounting groove is symmetrically opened at the right end of the body.

[0010] Preferably, the heat dissipation assembly includes a connecting pipe, a water pump, a suction pipe, a water tank, and a cooling device. The connecting pipe is bolted to the inner left wall of the power distribution box, and the upper rear end of the connecting pipe is bolted to the upper end of the water pump. The right end of the water pump is bolted to the suction pipe, which is located inside the water tank. The water tank is bolted to the lower rear end of the power distribution box, and a cooling device is installed at the bottom of the inside of the water tank.

[0011] Preferably, the right longitudinal section of the connecting pipe has a curved structure, and the connecting pipe is connected to the water tank through the water suction pipe.

[0012] Preferably, the left end of the first connecting block is magnetically connected to the second connecting block, and the second connecting block is fixedly connected to the right front end of the power distribution box in a symmetrical manner.

[0013] Preferably, a threaded rod is connected through the hollow structure of the mounting block, and the threaded rod is placed inside the connecting hole, wherein the connecting hole is opened inside the machine body.

[0014] Preferably, the upper end of the threaded rod is threaded into the inside of the worm gear, and the worm gear is rotatably connected to the upper right end of the machine body.

[0015] Preferably, the left end of the worm gear is meshed with a worm, and the worm is rotatably connected to the upper end of the machine body, while a rotating motor is installed at the rear end of the worm.

[0016] Preferably, the threaded rod has a lifting structure inside the connecting hole via a worm and a worm wheel.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the frequency conversion control device for the cotton breakage suction fan of the spinning machine makes it easy to install the power distribution box on the spinning machine, and also facilitates heat dissipation of the components, while preventing dust from falling on the components;

[0018] 1. It is equipped with a mounting block and a mounting groove. The threaded rod, through the structural design of the worm and worm wheel inside the connecting hole, allows the mounting block to engage inside the mounting groove.

[0019] When the worm rotates, it drives the threaded rod to descend through the worm wheel until the threaded rod passes through the hollow structure of the mounting block, thus facilitating the installation of the power distribution box on the spinning machine;

[0020] 2. Equipped with heat dissipation components and a power distribution box, the connecting pipe is designed with a water tank and a suction pipe to allow water from the tank to enter the connecting pipe and then return to the tank through the suction pipe, thus facilitating heat dissipation for the components.

[0021] 3. A protective plate and a first connecting block are provided. The left end of the first connecting block is magnetically connected to the second connecting block, so that the protective plate flips over to cover the right end of the power distribution box. The position of the protective plate is limited by the first connecting block and the second connecting block, thereby preventing dust from falling on the components. Attached Figure Description

[0022] Figure 1 This is a frontal cross-sectional view of the present invention.

[0023] Figure 2 This is a schematic cross-sectional view of the connection between the power distribution box and the connecting pipe of this utility model on the right side.

[0024] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the connection between the power distribution box and the component mounting plate of this utility model;

[0025] Figure 4 This is a top sectional view of the connection between the mounting groove and the mounting block of this utility model.

[0026] Figure 5 This is a schematic diagram of the overall structure of the connection between the threaded rod and the worm gear in this utility model;

[0027] Figure 6 This is a schematic diagram of the overall structure of the protective plate and the first connecting block of this utility model.

[0028] In the diagram: 1. Power distribution box; 2. Component mounting plate; 3. Frequency converter; 4. Micro differential pressure sensor; 5. Intelligent cotton suction fan control module; 6. Heat dissipation assembly; 601. Connecting pipe; 602. Water pump; 603. Suction pipe; 604. Water tank; 605. Refrigeration unit; 7. Protective plate; 8. First connecting block; 9. Second connecting block; 10. Mounting block; 11. Mounting groove; 12. Body; 13. Threaded rod; 14. Connecting hole; 15. Worm gear; 16. Worm; 17. Rotating motor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a variable frequency control device for a cotton-suction fan on a spinning machine, comprising a power distribution box 1, a component mounting plate 2, a frequency converter 3, a micro differential pressure sensor 4, an intelligent cotton-suction fan control module 5, a heat dissipation assembly 6, a protective plate 7, a first connecting block 8, a second connecting block 9, a mounting block 10, a mounting groove 11, a machine body 12, a threaded rod 13, a connecting hole 14, a worm gear 15, a worm 16, and a rotating motor 17.

[0031] Example: Existing methods involve mounting the power distribution box 1 onto the spinning machine using bolts. However, this requires specific tools, and frequent operation can easily damage the screws and bolt holes. Therefore, this example uses the following technical solution: Figure 1 , Figure 2 , Figure 4 and Figure 5 Since the left end of the mounting block 10 is engaged with the inside of the mounting groove 11, the upper end of the threaded rod 13 is threaded with the inside of the worm wheel 15, and the left end of the worm wheel 15 is engaged with the worm 16, the threaded rod 13 has a lifting structure inside the connecting hole 14 through the worm 16 and the worm wheel 15.

[0032] Therefore, the power distribution box 1 is placed at the right end of the body 12, and the mounting blocks 10 arranged symmetrically on the upper and lower sides are engaged in the mounting slots 11 at the corresponding positions. When the rotating motor 17 is working, it drives the worm gear 16 to rotate, and the worm gear 16 meshes with the worm wheel 15 when it rotates.

[0033] When the worm gear 15 rotates at the upper end of the machine body 12, it drives the threaded rod 13 to descend, allowing the threaded rod 13 to move downward inside the connecting hole 14 until the threaded rod 13 passes through the hollow structure of the upper and lower symmetrical mounting blocks 10, thus limiting the position of the power distribution box 1 on the machine body 12, thereby facilitating the installation of the power distribution box 1 on the spinning machine.

[0034] Existing components are exposed to the elements, making them susceptible to damage from dust. Therefore, this embodiment employs the following technical solution: Figure 1 , Figure 3 , Figure 4 and Figure 6 Since the left end of the first connecting block 8 is magnetically connected to the second connecting block 9, the second connecting block 9 is fixedly connected to the right front end of the power distribution box 1 in a symmetrical manner.

[0035] Therefore, when a large amount of cotton is sucked up by the broken head, the frequency converter 3 will increase according to the decrease of the value of the micro differential pressure sensor 4. When it increases to the set value of 45Hz, the alarm light installed on the roof will flash to remind the operator to remove the cotton. After the cotton is removed, the suction motor will return to the 40Hz state to achieve the effect of energy saving.

[0036] Push the protective plate 7 to flip it over and cover the right end of the power distribution box 1, thus sealing the power distribution box 1. This allows the first connecting block 8, which is symmetrically arranged above and below, to be magnetically connected to the second connecting block 9 at the corresponding position. The position of the protective plate 7 is then limited by the first connecting block 8 and the second connecting block 9.

[0037] The power distribution box 1 and the protective plate 7 protect the micro differential pressure sensor 4, the intelligent cotton suction fan control module 5, and the heat dissipation component 6, thereby preventing dust from falling on the components.

[0038] The components in the existing power distribution box 1 generate heat during operation, and slow heat dissipation reduces the lifespan of the components. Therefore, this embodiment addresses this issue through the following technical solution: Figure 1 and Figure 2 Since the right longitudinal section of the connecting pipe 601 is curved, the connecting pipe 601 is connected to the water tank 604 through the water suction pipe 603.

[0039] Therefore, when the refrigeration device 605 is working, it cools the water inside the water tank 604. When the water pump 602 is working, it allows the cold water inside the water tank 604 to enter the curved structure of the connecting pipe 601 through the lower end of the connecting pipe 601.

[0040] The cold water inside the curved structure of the connecting pipe 601 dissipates heat from the various components mounted on the component mounting plate 2. The water inside the connecting pipe 601 re-enters the water tank 604 through the water suction pipe 603, thereby facilitating heat dissipation from the components. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spinning frame end-of-cop suction fan frequency conversion control device, comprising a power distribution box (1) and a component mounting plate (2) screw connected to the middle end inside it, the right lower end of the component mounting plate (2) is sequentially installed from front to back with a frequency converter (3), a micro differential pressure sensor (4) and an intelligent suction fan control module (5); characterized in that Still comprising: The left side of the component mounting plate (2) is provided with a heat dissipation assembly (6) which plays a water cooling role, and the right side of the component mounting plate (2) is rotatably connected to the right rear end of the power distribution box (1), and the front end of the protection plate (7) is symmetrically embedded with a first connecting block (8), wherein the left end of the power distribution box (1) is fixedly connected with a mounting block (10) symmetrically. The left end of the mounting block (10) is clamped and connected inside the mounting groove (11), and the mounting groove (11) is symmetrically opened inside the right end of the machine body (12).

2. A device for controlling the frequency of a suction fan of a spinning frame for end breaking according to claim 1, characterized in that: The heat dissipation assembly (6) comprises a connecting pipe (601), a water pump (602), a water suction pipe (603), a water tank (604) and a refrigeration device (605), the connecting pipe (601) is bolted to the left wall inside the power distribution box (1), and the rear upper end of the connecting pipe (601) is bolted to the upper end of the water pump (602), the right end of the water pump (602) is bolted with the water suction pipe (603), the water suction pipe (603) is located inside the water tank (604), and the water tank (604) is bolted to the lower rear end of the power distribution box (1), and the inside bottom of the water tank (604) is provided with a refrigeration device (605).

3. A device for frequency control of the suction fan of a spinning frame end-of- yarn detection system according to claim 2, characterized in that: The right side of the connecting pipe (601) is curved in longitudinal section, and the connecting pipe (601) forms a communication structure with the water tank (604) through the water suction pipe (603).

4. The device according to claim 1, characterized in that it comprises a frequency converter. The left end of the first connecting block (8) is magnetically connected with the second connecting block (9), and the second connecting block (9) is fixedly connected to the right front end of the power distribution box (1) symmetrically.

5. The device according to claim 1, characterized in that it comprises a frequency converter. The hollow structure of the mounting block (10) is connected with a threaded rod (13) penetrating through, and the threaded rod (13) is placed in the connecting hole (14), wherein the connecting hole (14) is opened in the inside of the machine body (12).

6. A device for frequency control of the suction fan of a spinning frame end-of- yarn detection system according to claim 5, characterized in that: The upper end of the threaded rod (13) is screw connected in the inside of the worm gear (15), and the worm gear (15) is rotatably connected to the right upper end of the machine body (12).

7. A device for frequency control of the suction fan of a spinning frame end-of- yarn detection system according to claim 6, characterized in that: The left end of the worm gear (15) is engaged with a worm (16), and the worm (16) is rotatably connected to the upper end of the machine body (12), and the rear end of the worm (16) is provided with a rotating motor (17).

8. A device for frequency control of the suction fan of a spinning frame end-of- yarn detection system according to claim 5, characterized in that: The threaded rod (13) is in a lifting structure in the connecting hole (14) through the worm (16) and the worm gear (15).

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