Sliding door for jacquard shedding device and system fuzzy control method
By using sliding door components and a system fuzzy control method in the jacquard opening device, the problems of space occupation and inconvenient operation of traditional protective mechanisms are solved, achieving convenient maintenance and efficient heat dissipation, and ensuring stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-07
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional jacquard opening devices have protective mechanisms that occupy a large space, are inconvenient to operate, and are difficult to maintain in situations where space is limited or where personnel are high.
The traditional protective cover is replaced by two sliding door components. Combined with the design of slide rails, sliding bearings, and pulleys, the sliding door can move stably. The fan speed is adjusted by the system fuzzy control method to ensure heat dissipation and dust prevention.
The sliding door design simplifies the maintenance process, avoids space occupation and personnel bumps, and ensures stable operation of the equipment under high heat load, extending filter life and reducing energy consumption.
Smart Images
Figure CN121853249A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of jacquard opening device technology, and in particular to a sliding door and a fuzzy control method for a jacquard opening device system. Background Technology
[0002] The jacquard shedding mechanism is a key component in textile machinery, used to control the shedding movement of warp yarns to achieve complex jacquard patterns. During operation, the jacquard shedding mechanism contains delicate mechanical and electronic components, making it susceptible to intrusion of external contaminants such as moisture, dust, and lint, leading to wear, malfunction, or shortened lifespan. Therefore, protective structures are typically required to isolate these contaminants, ensuring stable operation and long-term reliability of the device.
[0003] Traditional jacquard opening devices typically have a protective cover to prevent moisture, dust, and lint from entering and damaging internal components. This cover is hinged to the top connector of the device. To open it, the cover must be lifted upwards and secured with side supports or gas springs. The open cover occupies top and side space. When top space is limited, such as in a low-ceilinged factory or when the space is too small after installation, the cover may not open, requiring removal to inspect or maintain components. Afterward, the cover must be reinstalled. Furthermore, taller individuals inspecting or maintaining the device may bump their heads on the lifted cover, requiring them to bend over to avoid it. Summary of the Invention
[0004] The purpose of this invention is to provide a sliding door and system fuzzy control method for a jacquard opening device, which solves the technical problems of large space occupation and inconvenient operation of the protective mechanism of the opening device in the prior art.
[0005] This application discloses a sliding door for a jacquard opening device, comprising: beam; An opening device is installed on the crossbeam; A slide rail assembly is mounted on the opening device; The first sliding door assembly is slidably mounted on the slide rail assembly; The second sliding door assembly is slidably mounted on the slide rail assembly.
[0006] This application provides two sliding door assemblies, replacing the original protective cover, which can better protect the opening device.
[0007] Based on the above technical solution, the present application can be further improved as follows: Furthermore, the slide rail assembly includes: A connecting seat is installed on the opening device; Two slide rail fixing seats are installed at intervals on the connecting seat; The slide rail is connected to the slide rail mounting base at both ends. The advantage of this step is that the slide rail can provide a better movement path, so that the subsequent sliding door components can move stably.
[0008] Further, the first sliding door assembly includes: First sliding door; A first sliding bearing is installed on the first sliding door, and the first sliding bearing cooperates with the slide rail; The first pulley is installed at the bottom of the first sliding door, and the first pulley cooperates with the crossbeam; The second sliding door assembly includes: Second sliding door; The second sliding bearing is installed on the second sliding door, and the second sliding bearing cooperates with the slide rail; The second pulley is installed at the bottom of the second sliding door, and the second pulley cooperates with the crossbeam. The beneficial effect of this step is that the sliding bearing and the pulley cooperate with each other to achieve stable and easy movement of the sliding door.
[0009] Furthermore, there are two first sliding bearings, spaced apart; there are two second sliding bearings, spaced apart; the first and second sliding bearings are staggered. The beneficial effect of this step is to avoid interference between the two sliding doors when they move by using staggered sliding bearings.
[0010] Furthermore, the first sliding door includes a planar segment and a raised segment, and the second sliding door is located outside the planar segment. The beneficial effect of this step is that by having the planar segment and the raised segment cooperate with each other, it is possible to prevent the sliding door from moving too far and to make the first sliding door and the second sliding door spatially staggered to realize the door opening function.
[0011] Furthermore, a groove is formed on the planar segment, and a first filter screen is installed inside the groove; A second filter screen is installed on the second sliding door. A gap is left between the inner side of the second filter screen and the outer side of the first sliding door. The advantage of this step is that the filter screen will not interfere with the sliding door, and the cleanliness of the interior space can be ensured by the cooperation of the first and second filter screens.
[0012] Furthermore, a fan is installed on the inner side of the planar section. The fan works in conjunction with the first filter. The beneficial effect of this step is that the fan and the filter work together to ensure the circulation of clean air, thereby achieving the effect of cooling the electrical components.
[0013] Furthermore, the outer end face of the protruding section is flush with the outer end face of the second sliding door. The beneficial effect of this step is to ensure that the outer end faces of both the first and second sliding doors are flush with the opening device, thus ensuring a sealing effect.
[0014] Furthermore, handles are installed on both the raised section and the second sliding door. The advantage of this step is that the handles facilitate manual operation by the staff.
[0015] The fuzzy control method of this invention has the following specific algorithm steps: Step 1: Define the fan installed on the inner side of the first sliding door assembly plane section as the system control object. The heat load gradient, filter pressure difference, and loom speed are used as input signals, and the output variable is the drive signal of the fan motor, which is used to adjust the fan speed. Step 2: Fuzzy processing of input values, converting the collected precise values into fuzzy linguistic variables, and establishing membership functions; Step 3: Construct a rule base for temperature and dust collaborative fuzzy reasoning; Step 4: Defuzzification. Based on the collected fuzzified values of heat load gradient, loom speed, and filter pressure difference, and the rule logic, the fuzzified value of output U is obtained. Then, the specific fan PWM duty cycle is obtained according to the output variable definition.
[0016] Furthermore, the input / output objects defined in step 1 are represented as follows: Step 1.1 Define the control object The control core is a fan installed on the inner side of the plane section of the first sliding door; the fan, in cooperation with the first filter in the groove, is responsible for driving external cold air into the opening device to force-cool the electrical components; the final execution action of the algorithm is the PWM drive signal of the fan motor. Step 1.2 Define the input variable vector
[0017] The heat load gradient reflects the rate of heat accumulation inside the opening device caused by precision mechanical and electronic components; temperature sensors are arranged in the protective space formed by the first sliding door assembly and the second sliding door assembly to calculate the rate of temperature change per unit time. The pressure difference between the filters is used to monitor the air permeability of the first and second filters. Due to the presence of moisture, dust, and lint in the workshop environment, the filters are prone to clogging, and the pressure difference directly reflects the current air intake resistance. Micro-pressure differential sensors are deployed on the inner and outer sides of the groove and the second sliding door to acquire resistance data in real time. The loom speed represents the intensity of external heat and dust sources; the higher the speed, the faster the equipment heats up, and the more severe the flying lint in the workshop, the greater the risk of intrusion into the sheathing device; the real-time speed signal of the jacquard machine main controller is read directly through the communication interface; Step 1.3 Define output variables The fan drive signal determines the fan speed; while meeting the heat dissipation requirements, it avoids excessive negative pressure caused by excessive speed when the filter is clogged, thereby preventing more fine dust from being forcibly sucked into the gap between the first and second sliding doors or into the depth of the filter.
[0018] Furthermore, the input / output objects defined in step 2 are represented as follows: Step 2.1 Fuzzification of specific variables Step 2.1.1 Heat load gradient Blurring The language set reflects the rate of heat accumulation inside the plane segment.
[0019] Negative cooling NC blurring:
[0020] in, For heat load gradient The negative cooling NC fuzzification function, This marks the end point of negative cooling; It is the boundary between cooling and equilibrium; Zero-maintained ZO blurring
[0021] in, For heat load gradient The zero-preservation ZO fuzzification function, This marks the starting point of a rapid temperature rise. Low-speed temperature rise PS blurring:
[0022] in, For heat load gradient The low-speed temperature rise PS blurring function, This marks the starting point of a rapid temperature rise. High-speed temperature rise PB blurring:
[0023] Step 2.1.2 Filter pressure difference Blurring Reflecting the permeability of the first and second filters, a set of languages:
[0024] Smooth Low Blur:
[0025] in, For filter pressure difference The smooth Low blurring function, As a baseline for cleaning; The threshold for attention; This is the blockage alarm value; Slight dust accumulation blurs the Med image:
[0026] in, For filter pressure difference Slight dust accumulation; Med blurring function; Severe congestion and high blurring:
[0027] in, For filter pressure difference The High blurring function is severely blocked; Step 2.1.3 Loom Speed Blurring loom speed The intensity of the heat source and the source of the flying fluff are determined; the language set is
[0028] Stop blurring:
[0029] in, loom speed The Stop fuzzification function, This is the upper limit of the idle speed. Slow train blurring:
[0030] in, loom speed The Slow blurring function, This is the lower limit of the speed for express trains; Fast blurring:
[0031] in, loom speed The Fast fuzzing function.
[0032] Furthermore, the rule base for temperature-dust collaborative fuzzy reasoning constructed in step 3 is represented as follows: Step 3.1 Output variable definition Output variables The PWM duty cycle of the fan installed inside the planar segment of the first sliding door assembly; the universe of discourse is Fuzzy sets are ; Step 3.2 Full-condition fuzzy rule base Based on the principle of prioritizing heat dissipation while also considering dust prevention, the design incorporates logic rules that cover all operating conditions, resulting in a total of 36 theoretical combinations in the input space.
[0033] Furthermore, the defuzzification in step 4 is represented as: When the engine is off, the PWM duty cycle is 0%; when the engine is running at low speed and quiet, the PWM duty cycle is 30% to maintain a slight positive pressure and prevent external fluff from drifting in through the gap between the two sliding doors; when the engine is cruising at medium speed (Med), the PWM duty cycle is 60% to balance heat dissipation and noise; when the engine is running at full speed and strong cooling (High), the PWM duty cycle is 100% to cope with extreme high temperatures.
[0034] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. This application adds a sliding door to the opening device to replace the protective cover for protecting the internal components and other parts of the jacquard opening device. The structure is simple and easy to install.
[0035] 2. The sliding door of this application can move left and right to open the opening device, which is convenient for maintenance. At the same time, the movement of the sliding door does not occupy the space on the top or side.
[0036] 3. This application facilitates maintenance and inspection by staff, while also preventing staff from bumping into things.
[0037] 4. Under high heat load conditions, the system automatically increases the fan speed to ensure efficient heat dissipation of electrical components and avoid equipment failure due to overheating. When the filter becomes clogged, the system automatically reduces the fan speed to prevent negative pressure from drawing in more dust, effectively extending the filter's lifespan. The algorithm dynamically adjusts the heat dissipation strategy based on the loom speed, enabling the equipment to maintain a stable operating temperature even at high speeds, while reducing unnecessary energy consumption. Attached Figure Description
[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0039] Figure 1 This is a schematic diagram of the structure of a sliding door for a jacquard opening device according to a specific embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the middle slide rail assembly; Figure 3 for Figure 1 A schematic diagram of the structure of the first sliding door assembly; Figure 4 for Figure 1 A schematic diagram of the structure of the second sliding door assembly; Figure 5 This is a schematic diagram illustrating the use of a sliding door with a jacquard opening device according to a specific embodiment of the present invention; Figure 6 This is another schematic diagram illustrating the use of a sliding door with a jacquard opening device according to a specific embodiment of the present invention; Figure 7 This is another schematic diagram illustrating the use of a sliding door for a jacquard opening device according to a specific embodiment of the present invention; Figure 8 This is a flowchart of the fan speed control process of the present invention.
[0040] The attached figures are labeled as follows: 1-Crossbeam; 2-Opening device; 3-Slide rail assembly; 4-First sliding door assembly; 5-Second sliding door assembly; 6-Handle; 301-Connecting seat; 302-Slide rail fixing seat; 303-Slide rail; 401-First sliding door; 402-First sliding bearing; 403-First pulley; 404-Flat section; 405-Protruding section; 406-Groove; 407-First filter; 408-Fan; 501 - Second sliding door; 502 - Second sliding bearing; 503 - Second pulley; 504 - Second filter screen. Detailed Implementation
[0041] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
[0042] In the description of this application, it should be understood that the terms "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "setup," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0044] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.
[0045] Example: like Figure 1-7 As shown in the embodiment of this application, a sliding door for a jacquard opening device is disclosed. Specifically, the sliding door is used to close the processing area of the opening device to reduce dust. At the same time, the sliding door can be moved to facilitate workers to inspect or maintain the internal components of the jacquard opening device.
[0046] like Figure 1-4 As shown, the specific structure of this application includes: Crossbeam 1, preferably two crossbeams spaced apart, on which opening devices 2 are installed; An opening device 2 is installed on the crossbeam 1. The opening device 2 can be an existing mechanism, which will not be described in detail here. The slide rail assembly 3 is installed on the opening device 2. The slide rail assembly 3 is used to provide a path for movement, so as to facilitate the stable movement of the subsequent first sliding door assembly and second sliding door assembly. The first sliding door assembly 4 is slidably mounted on the slide rail assembly 3; The second sliding door assembly 5 is slidably installed on the slide rail assembly 3. This application provides two sliding door assemblies, which respectively close the opening of the opening device 2, and also facilitate the processing by the staff.
[0047] To realize the sliding rail function of the slide rail assembly 3, the slide rail assembly 3 is installed on the opening device 2 to facilitate the stable movement of the first sliding door assembly 4 and the second sliding door assembly 5 along it, such as... Figure 2 As shown, the slide rail assembly 3 includes: Connector 301 is installed on the opening device 2; Two slide rail fixing seats 302 are installed at intervals on the connecting seat 301; The slide rail 303 is connected to the slide rail fixing seat 302 at both ends. The slide rail 303 in the slide rail assembly 3 of this application extends along the length direction of the connecting seat 301, so that the first sliding door assembly 4 and the second sliding door assembly 5 can move along the slide rail 303.
[0048] To achieve stable movement of the first sliding door assembly 4 and the second sliding door assembly 5, such as Figure 3 , 4 As shown, this application designs a first sliding door assembly 4 and a second sliding door assembly 5. Specifically, the first sliding door assembly 4 includes: First sliding door 401; The first sliding bearing 402 is installed on the first sliding door 401 and cooperates with the slide rail 303. Specifically, the first sliding bearing 402 is connected to the first sliding door 401. When the first sliding bearing 402 moves along the slide rail, the first sliding door 401 also moves accordingly. The first pulley 403 is installed at the bottom of the first sliding door 401, and the first pulley 403 cooperates with the crossbeam 1. That is, under the limitation of the slide rail 303, the first sliding door 401 can move along the crossbeam 1 to complete the closing. The second sliding door assembly 5 includes: Second sliding door 501; The second sliding bearing 502 is installed on the second sliding door 501, and the second sliding bearing 502 cooperates with the slide rail 303; The second pulley 503 is installed at the bottom of the second sliding door 501, and the second pulley 503 cooperates with the crossbeam 1. That is, the second sliding door assembly 5 and the first sliding door assembly 4 in this application move in the same way, both of which are moved by sliding bearings in cooperation with slide rails.
[0049] In order to achieve stable movement of the two sliding doors, there are two first sliding bearings 402, which are spaced apart; there are two second sliding bearings 502, which are spaced apart; the first sliding bearings 402 and the second sliding bearings 502 are staggered; by staggering, the two sliding doors can move more easily to each other, thereby avoiding interference between them.
[0050] To further prevent interference between the two sliding doors, the first sliding door 401 includes a flat section 404 and a raised section 405, and the second sliding door 501 is located outside the flat section 404 and has a gap between it and the flat section 404. In this way, the second sliding door 501 and the first sliding door 401 will not interfere with each other when they move relative to each other.
[0051] For ease of cleaning, a groove 406 is provided on the planar segment 404 in this application, and a first filter screen 407 is installed inside the groove 406. A second filter 504 is installed on the second sliding door 501, and a gap is left between the inner side of the second filter 504 and the outer side of the first sliding door 401. In this application, the second filter 504 protrudes from the second sliding door 501, which can avoid interference with the first sliding door 401, thereby ensuring that the two sliding doors can slide relative to each other. To facilitate the cleaning function, a fan 408 is installed on the inner side of the planar segment 404. The fan 408 works in conjunction with the first filter 407 to achieve the cleaning function.
[0052] The outer end face of the protruding section 405 is flush with the outer end face of the second sliding door 501, which can limit the position of the second sliding door. At the same time, the outer end faces of both are flush with the opening device to ensure the sealing effect. Both the protruding section 405 and the second sliding door 501 are equipped with handles 6, which facilitate manual control by personnel.
[0053] like Figure 5-7 As shown, further explanation is provided regarding this application: This application includes a first sliding door assembly 4 and a second sliding door assembly 5. The first sliding door assembly 4 and the second sliding door assembly 5 have similar structures, both including a sliding door, a sliding bearing, and a pulley. The sliding bearing cooperates with the slide rail 303, and the pulley travels on the crossbeam 1, thereby realizing the closing function of the opening device.
[0054] The rolling of the pulleys reduces the resistance to the movement of the sliding door and also saves costs.
[0055] The first sliding bearing 402 and the second sliding bearing 502 can be the same part or different parts; the first pulley 403 and the second pulley 503 can be the same part or different parts.
[0056] To facilitate the sliding doors, this application includes door handles on the first sliding door 401 and the second sliding door 501. The first sliding door 401 is stepped, comprising a flat section 404 and a raised section 405. The flat section 404 is located below the second sliding door and houses a first filter 407. The raised section 405 is flush with the second sliding door 501, ensuring that the first and second sliding doors 401 do not misalign after movement. Simultaneously, a second filter 504 is installed on the second sliding door 501, protruding from it to prevent interference between its inner surface and the first sliding door 401.
[0057] The first filter 407 and the second filter 504 can be the same part or different parts.
[0058] In this application, both the first sliding door assembly 4 and the second sliding door assembly 5 can move on the slide rail 303 and can stop at any position. A handle can be used to control the sliding of the first sliding door assembly 4 and the second sliding door assembly 5 on the slide rail 303, thereby opening and closing the sliding door.
[0059] When closed, the first sliding door assembly 4 and the second sliding door assembly 5 are located on both sides of the slide rail 303. Moving the sliding door assembly to the left opens the right side of the jacquard opening device, allowing for inspection or maintenance of the internal components on the right side of the jacquard opening device; moving the sliding door assembly to the right opens the left side of the jacquard opening device, allowing for inspection or maintenance of the internal components on the left side of the jacquard opening device.
[0060] The two sliding door components, whether closed or open, essentially do not alter the overall space of the jacquard opening device, nor do they occupy top or side space. Even when overhead space is limited, the sliding doors can still be opened; moreover, unlike traditional hinged covers, the sliding doors do not cause head injuries when open. Personnel can inspect the jacquard opening device from a low or level perspective, facilitating easy access for maintenance of internal components.
[0061] Magnets or similar limiting mechanisms (not shown in the figure) are installed on both the left and right wall panels of the opening device. When the two sliding door assemblies are in the closed state, the magnets or limiting mechanisms can stop the sliding door assemblies in the required position and prevent the sliding door assemblies from moving due to machine vibration.
[0062] Simultaneously, by combining the fan, the first filter, and the second filter, an algorithm is used to resolve the conflict between heat dissipation and dust prevention. The fan speed control flowchart is as follows: Figure 8 As shown, the specific algorithm steps are as follows: Step 1: Define the fan installed on the inner side of the first sliding door assembly plane section as the system control object. The heat load gradient, filter pressure difference, and loom speed are used as input signals, and the output variable is the drive signal of the fan motor, which is used to adjust the fan speed.
[0063] Step 1.1 Define the control object The control core is a fan installed inside the planar section of the first sliding door. This fan, in conjunction with the first filter in the recess, is responsible for driving external cold air into the opening device to provide forced air cooling for the electrical components. The final execution action of the algorithm is the PWM drive signal of the fan motor.
[0064] Step 1.2 Define the input variable vector
[0065] The heat load gradient reflects the rate of heat accumulation inside the opening device caused by precision mechanical and electronic components. Temperature sensors are arranged within the protective space enclosed by the first and second sliding door assemblies to calculate the rate of temperature change per unit time.
[0066] The pressure difference between the first and second filters is used to monitor their air permeability. Due to the presence of moisture, dust, and lint in the workshop environment, the filters are prone to clogging, and the pressure difference directly reflects the current air intake resistance. Micro-pressure differential sensors are deployed on the inner and outer sides of the groove and the second sliding door to acquire resistance data in real time.
[0067] The loom speed represents the intensity of external heat and dust sources. Higher speeds result in faster heat generation and more severe lint buildup in the workshop, increasing the risk of intrusion into the sheathing device. The real-time speed signal from the jacquard machine's main controller is read directly via a communication interface.
[0068] Step 1.3 Define output variables This is the fan drive signal, which determines the fan speed. While meeting heat dissipation requirements, it avoids creating excessive negative pressure due to excessive speed when the filter becomes clogged, thus preventing more fine dust from being forcibly sucked into the gap between the first and second sliding doors or deep into the filter.
[0069] Step 2: Fuzzy processing of input quantities, converting the collected precise values into fuzzy linguistic variables, and establishing membership functions.
[0070] Step 2.1 Fuzzification of specific variables Step 2.1.1 Heat load gradient Blurring The language set reflects the rate of heat accumulation inside the plane segment.
[0071] Negative cooling NC blurring:
[0072] in, For heat load gradient The negative cooling NC fuzzification function, This marks the end point of negative cooling; It is the boundary between cooling and equilibrium.
[0073] Zero-maintained ZO blurring
[0074] in, For heat load gradient The zero-preservation ZO fuzzification function, This marks the starting point of a rapid temperature rise.
[0075] Low-speed temperature rise PS blurring:
[0076] in, For heat load gradient The low-speed temperature rise PS blurring function, This marks the starting point of a rapid temperature rise.
[0077] High-speed temperature rise PB blurring:
[0078] Step 2.1.2 Filter pressure difference Blurring Reflecting the permeability of the first and second filters, a set of languages:
[0079] Smooth Low Blur:
[0080] in, For filter pressure difference The smooth Low blurring function, As a baseline for cleaning; The threshold for attention; This is the alarm value for blockage.
[0081] Slight dust accumulation blurs the Med image:
[0082] in, For filter pressure difference The slight dust accumulation Med blurring function.
[0083] Severe congestion and high blurring:
[0084] in, For filter pressure difference The High blurring function is severely blocked.
[0085] Step 2.1.3 Loom Speed Blurring loom speed This determines the intensity of the heat source and the source of pollen. The language set is...
[0086] Stop blurring:
[0087] in, loom speed The Stop fuzzification function, This is the upper limit of the idle speed.
[0088] Slow train blurring:
[0089] in, loom speed The Slow blurring function, This is the lower limit of the speed for express trains.
[0090] Fast blurring:
[0091] in, loom speed The Fast fuzzing function.
[0092] Step 3: Construct a rule base for temperature and dust collaborative fuzzy reasoning.
[0093] Step 3.1 Output variable definition Output variables This represents the PWM duty cycle of the fan installed inside the planar segment of the first sliding door assembly. The universe of discourse is... Fuzzy sets are .
[0094] Step 3.2 Full-condition fuzzy rule base Based on the principle of prioritizing heat dissipation while also considering dust prevention, logical rules covering all operating conditions were designed, resulting in a total of 36 theoretical combinations in the input space. The table below merges operating conditions with the same logic, establishing a rule base of 19 rules that completely cover all possibilities.
[0095] Table 1 Rule Logic Table
[0096] Step 4: Defuzzification The fuzzy value of output U is obtained by collecting the heat load gradient, loom speed, filter pressure difference fuzzy values and rule logic, and then the specific fan PWM duty cycle is obtained according to the output variable definition.
[0097] When the engine is off, the PWM duty cycle is 0%; when operating at low speed and quiet (Low), the PWM duty cycle is... Maintain a slight positive pressure to prevent external fluff from drifting in through the gap between the two sliding doors. During medium-speed cruising with Med, the PWM duty cycle is... Balancing heat dissipation and noise. At full-speed high cooling, the PWM duty cycle is 100% to handle extreme temperatures.
[0098] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A sliding door for a jacquard opening device, characterized in that, include: Crossbeam (1); An opening device (2) is installed on the crossbeam (1); The slide rail assembly (3) is mounted on the opening device (2); The first sliding door assembly (4) is slidably mounted on the slide rail assembly (3); The second sliding door assembly (5) is slidably mounted on the slide rail assembly (3).
2. The sliding door for the jacquard opening device according to claim 1, characterized in that, The slide rail assembly (3) includes: A connecting seat (301) is installed on the opening device (2); Two slide rail fixing seats (302) are installed at intervals on the connecting seat (301); The slide rail (303) is connected to the slide rail fixing seat (302) at both ends.
3. The sliding door for the jacquard opening device according to claim 2, characterized in that, The first sliding door assembly (4) includes: First sliding door (401); The first sliding bearing (402) is installed on the first sliding door (401), and the first sliding bearing (402) cooperates with the slide rail (303); The first pulley (403) is installed at the bottom of the first sliding door (401), and the first pulley (403) cooperates with the crossbeam (1); The second sliding door assembly (5) includes: Second sliding door (501); The second sliding bearing (502) is installed on the second sliding door (501), and the second sliding bearing (502) cooperates with the slide rail (303); The second pulley (503) is installed at the bottom of the second sliding door (501), and the second pulley (503) cooperates with the crossbeam (1).
4. The sliding door for the jacquard opening device according to claim 3, characterized in that, There are two first sliding bearings (402) spaced apart; there are two second sliding bearings (502) spaced apart; the first sliding bearings (402) and the second sliding bearings (502) are staggered; the first sliding door (401) includes a flat section (404) and a raised section (405), and the second sliding door (501) is located outside the flat section (404).
5. The sliding door for the jacquard opening device according to claim 4, characterized in that, A groove (406) is provided on the planar segment (404), and a first filter screen (407) is installed inside the groove (406). A second filter screen (504) is installed on the second sliding door (501), and a gap is left between the inner side of the second filter screen (504) and the outer side of the first sliding door (401); A fan is installed on the inner side of the planar segment (404), and the fan cooperates with the first filter (407); The outer end face of the protruding section (405) is flush with the outer end face of the second sliding door (501); Both the raised section (405) and the second sliding door (501) are equipped with handles (6).
6. A fuzzy control method for a sliding door system used in a jacquard opening device, the specific steps of which are as follows, characterized in that: Step 1: Define the fan installed on the inner side of the first sliding door assembly plane section as the system control object. The heat load gradient, filter pressure difference, and loom speed are used as input signals, and the output variable is the drive signal of the fan motor, which is used to adjust the fan speed. Step 2: Fuzzy processing of input values, converting the collected precise values into fuzzy linguistic variables, and establishing membership functions; Step 3: Construct a rule base for temperature and dust collaborative fuzzy reasoning; Step 4: Defuzzification. Based on the collected fuzzified values of heat load gradient, loom speed, and filter pressure difference, and the rule logic, the fuzzified value of output U is obtained. Then, the specific fan PWM duty cycle is obtained according to the output variable definition.
7. The fuzzy control method for a sliding door system using a jacquard opening device according to claim 6, characterized in that: The input / output objects defined in step 1 are represented as follows: Step 1.1 Define the control object The control core is a fan installed on the inner side of the plane section of the first sliding door; the fan, in cooperation with the first filter in the groove, is responsible for driving external cold air into the opening device to force-cool the electrical components; the final execution action of the algorithm is the PWM drive signal of the fan motor. Step 1.2 Define the input variable vector The heat load gradient reflects the rate of heat accumulation inside the opening device caused by precision mechanical and electronic components; temperature sensors are arranged in the protective space formed by the first sliding door assembly and the second sliding door assembly to calculate the rate of temperature change per unit time. The pressure difference between the filters is used to monitor the air permeability of the first and second filters. Due to the presence of moisture, dust, and lint in the workshop environment, the filters are prone to clogging, and the pressure difference directly reflects the current air intake resistance. Micro-pressure differential sensors are deployed on the inner and outer sides of the groove and the second sliding door to acquire resistance data in real time. The speed of the loom represents the intensity of the external heat and dust sources. The higher the rotation speed, the faster the equipment heats up, and the more severe the flying lint in the workshop, the greater the risk of intrusion into the opening device; The real-time speed signal of the jacquard machine's main controller can be read directly through the communication interface; Step 1.3 Define output variables The fan drive signal determines the fan speed; while meeting the heat dissipation requirements, it avoids excessive negative pressure caused by excessive speed when the filter is clogged, thereby preventing more fine dust from being forcibly sucked into the gap between the first and second sliding doors or into the depth of the filter.
8. The fuzzy control method for a sliding door system using a jacquard opening device according to claim 7, characterized in that: The input / output objects defined in step 2 are represented as follows: Step 2.1 Fuzzification of specific variables Step 2.1.1 Heat load gradient Blurring The language set reflects the rate of heat accumulation inside the plane segment. Negative cooling NC blurring: in, For heat load gradient The negative cooling NC fuzzification function, This marks the end point of negative cooling; It is the boundary between cooling and equilibrium; Zero-maintained ZO blurring in, For heat load gradient The zero-preservation ZO fuzzification function, This marks the starting point of a rapid temperature rise. Low-speed temperature rise PS blurring: in, For heat load gradient The low-speed temperature rise PS blurring function, This marks the starting point of a rapid temperature rise. High-speed temperature rise PB blurring: Step 2.1.2 Filter pressure difference Blurring Reflecting the permeability of the first and second filters, a set of languages: Smooth Low Blur: in, For filter pressure difference The smooth Low blurring function, As a baseline for cleaning; The threshold for attention; This is the blockage alarm value; Slight dust accumulation blurs the Med image: in, For filter pressure difference Slight dust accumulation; Med blurring function; Severe congestion and high blurring: in, For filter pressure difference The High blurring function is severely blocked; Step 2.1.3 Loom Speed Blurring loom speed The intensity of the heat source and the source of the flying fluff are determined; the language set is Stop blurring: in, loom speed The Stop fuzzification function, This is the upper limit of the idle speed. Slow train blurring: in, loom speed The Slow blurring function, This is the lower limit of the speed for express trains; Fast blurring: in, loom speed The Fast fuzzing function.
9. The fuzzy control method for a sliding door system using a jacquard opening device according to claim 8, characterized in that: The rule base for temperature and dust collaborative fuzzy reasoning constructed in step 3 is represented as follows: Step 3.1 Output variable definition Output variables The PWM duty cycle of the fan installed inside the planar segment of the first sliding door assembly; the universe of discourse is Fuzzy sets are ; Step 3.2 Full-condition fuzzy rule base Based on the principle of prioritizing heat dissipation while also considering dust prevention, the design incorporates logic rules that cover all operating conditions, resulting in a total of 36 theoretical combinations in the input space.
10. The fuzzy control method for a sliding door system using a jacquard opening device according to claim 9, characterized in that: The defuzzification in step 4 is represented as: When the engine is off, the PWM duty cycle is 0%; when the engine is quiet (Low), the PWM duty cycle is 30% to maintain a slight positive pressure; when the engine is cruising (Med), the PWM duty cycle is 60% to balance heat dissipation and noise; and when the engine is fully cooling (High), the PWM duty cycle is 100%.