Overflow dyeing machine with detection device

Abstract

The invention relates to an overflow dyeing machine with a detection device, the overflow dyeing machine comprises a dye barrel, a dye vat and a conveying pipe connecting the dye barrel and the dye vat, the conveying pipe is provided with a PH detection probe, the PH detection probe is connected with a controller, the PH detection probe is used for detecting the PH value of dye liquor in the conveying pipe and outputting a first detection signal, and the controller is connected with the controller. The controller is connected with a display screen and is used for receiving the first detection signal and controlling the display screen to display the PH value of the dye liquor. The liquid environment in the dyeing process can be detected in time, and the dyeing quality is improved.

Description

Technical Field

[0001] The present application relates to the field of overflow dyeing machines, and in particular to an overflow dyeing machine with a detection device. Background Art

[0002] Overflow dyeing machine is a commonly used dyeing equipment in the textile industry. It is mainly composed of dye barrels, dye vats and other parts, which are connected by conveying pipes to realize the transportation and circulation of dyes. During the dyeing process, changes in pH value may affect the solubility and reactivity of the dye, and then affect the uniformity of dyeing and the depth of color.

[0003] Traditional overflow dyeing machines often lack the function of real-time detection of the pH value of the dye solution. Manual testing of the dyed fabric is required to adjust the pH value of the dye solution in the dye barrel, which results in slow adjustment speed, waste of manpower and time, and is difficult to meet high-quality production needs. Summary of the invention

[0004] In order to be able to timely detect the liquid environment during the dyeing process, improve the dyeing quality, and thereby reduce the harm to operators, the present application provides an overflow dyeing machine with a detection device.

[0005] The present application provides an overflow dyeing machine with a detection device, which adopts the following technical solution: An overflow dyeing machine with a detection device comprises a dye barrel, a dye vat and a delivery pipe for connecting the dye barrel and the dye vat, wherein the delivery pipe is provided with a pH detection probe, the pH detection probe is connected to a controller, the pH detection probe is used to detect the pH value of the dye solution in the delivery pipe and output a first detection signal, and the controller is connected to a display screen, the controller is used to receive the first detection signal and control the display screen to display the pH value of the dye solution.

[0006] By adopting the above technical solution, the controller receives the first detection signal output by the PH detection probe, which can reflect the PH value of the dye solution in real time and display these data on the connected display screen. The operator can intuitively understand the PH state of the dye solution, and timely adjust the dosage of the control agent or make other adjustments to ensure that the PH value during the dyeing process is within the ideal range, so that the liquid environment during the dyeing process can be detected in time to improve the dyeing quality; in addition, the PH monitoring system can reduce the possibility of manual intervention and operating errors, save manpower and time, and thus improve production efficiency.

[0007] Preferably, a turbidity detection probe is also provided on the conveying pipe, and the turbidity detection probe is connected to the controller, and the turbidity detection probe is used to detect the turbidity of the dye solution in the conveying pipe and output a second detection signal, and the controller is used to receive the second detection signal and control the display screen to display the turbidity of the dye solution.

[0008] By adopting the above technical solution, by measuring the turbidity of the dye solution, it is possible to promptly detect possible particulate matter or impurities in the solution, such as fiber fragments, sediments, etc. These impurities may affect the uniformity and dyeing effect of the dye during the dyeing process, so timely detection can help operators take measures, such as cleaning the delivery pipe or replacing the dye solution, to ensure the cleanliness of the dye solution, thereby improving the dyeing quality and product consistency.

[0009] Preferably, a stirring device is provided in the dye barrel, and the stirring device includes a stirring rod and a stirring blade arranged on the stirring rod. A closing cover is installed on the dye barrel, and a first motor is installed on the closing cover. The output shaft of the first motor passes through the closing cover and is circumferentially fixed to the stirring rod.

[0010] By adopting the above technical solution, the stirring device can evenly mix the dye and water through the movement of the stirring rod and the stirring blade to ensure the uniform concentration of the dye solution. The color difference and unevenness of the dye solution during the dyeing process can be avoided, and the dyeing quality and efficiency are improved. Dyes are prone to precipitation or stratification during long-term standing or use, especially heavier dye molecules. If not stirred, precipitation and stratification will lead to uneven dyeing or poor dyeing effect. The stirring device can effectively prevent this phenomenon and ensure the stability of the dye solution.

[0011] Preferably, the driving motor is connected to a controller, and the controller controls the first motor to start when the turbidity is greater than a set value.

[0012] By adopting the above technical solution, the controller automatically starts the stirring motor (first motor) according to the turbidity change of the dye solution. When the turbidity of the dye solution is too high, the stirring device automatically starts to stir to prevent the precipitation of the dye or the stratification of the dye particles, so as to ensure the uniformity of the dye solution. This automatic adjustment can reduce manual intervention and improve the convenience and efficiency of operation. If there is a high turbidity in the dye solution, it may cause uneven distribution of the dye, affect the dyeing effect, and even cause waste of the dye. Automatically starting the stirring motor can improve this situation in time, ensure the uniform concentration and distribution of the dye solution, and thus improve the consistency and yield of dyeing.

[0013] Preferably, a filter plate is provided inside the dye barrel, the filter plate is arranged horizontally, a filter hole is opened in the middle of the filter plate, the filter plate is used to divide the inside of the dye barrel into a stirring zone and a filtering zone, a closing structure for closing the filter hole is provided above the filter plate in the stirring zone, and a stirring structure is provided in the filtering zone.

[0014] By adopting the above technical solution, the setting of the filter plate ensures that the filter area can effectively remove impurities, precipitation and insoluble matter in the dye. The existence of the filter holes enables the dye liquid to remove most of the impurities when passing through the filter area, avoiding these impurities from affecting the uniform dyeing effect of the fabric during the dyeing process, thereby improving the quality of the dyed product. The design of the closed structure and the filter holes can make the dye liquid in the filter area more effectively filtered, reduce the contact time between the dye liquid and the impurities, and improve the filtration accuracy. Through the control of the closed structure, the dye liquid is allowed to flow through the filter holes only when necessary, thereby avoiding the accumulation of dye on the upper part of the filter plate to cause the filter holes to be blocked.

[0015] Preferably, the closed structure includes two closed cylinders and two closed plates, the two closed cylinders are respectively connected to the two opposite sides of the outer wall of the dye barrel, the piston rods of the closed cylinders are connected to the closed plates, and the closed plates are slidably connected to the top of the filter plate, and the two closed plates close the filter holes when sliding.

[0016] By adopting the above technical solution, before the first motor starts, the closing cylinder starts to drive the two closing plates to close the filter holes, and at this time the delivery pump is stopped, and then the dye liquid is stirred. Through the control of the closing cylinder, the closing plate can slide accurately, and then accurately close or open the filter holes. This mechanism allows the filter holes to remain open during the filtering process; and during the stirring process, the closed holes prevent the dye from flowing or contaminating, ensuring the flexibility of operation and control accuracy. During the stirring process, impurities or sediments in the dye may cause the filter holes to be blocked. The closed structure can close the filter holes during stirring, thereby preventing impurities such as sediments and fiber debris from entering the filter area through the filter holes, avoiding affecting the filtration efficiency or causing the filter holes to be blocked.

[0017] Preferably, the stirring structure includes a second motor, a driving rod and a driving fan blade arranged on the driving rod, the second motor is connected to the bottom of the dye barrel, the output shaft of the second motor passes through the dye barrel and is circumferentially fixed to the driving rod, a knocking piece is arranged on the driving fan blade, the knocking piece includes a knocking barrel, a knocking spring and a knocking hammer, the bottom of the knocking barrel is connected to the driving fan blade, the bottom of the filter plate is connected to an arc block, the bottom of the knocking hammer is slidably connected to the inner wall of the knocking barrel and the sliding direction is a vertical direction, when the driving fan blade rotates, the top of the knocking hammer abuts against the arc block, one end of the knocking spring is connected to the inner bottom wall of the knocking barrel, and the other end of the knocking spring is connected to the bottom of the knocking hammer.

[0018] By adopting the above technical solution, the fan blades are driven to rotate under the drive of the second motor, which not only has the traditional stirring effect, but also increases the physical impact force during the stirring process through the interaction with the knocking hammer (when the knocking hammer contacts the arc block, a knocking action is generated). This impact can effectively break up the solid particles or impurities in the dye, enhance the stirring effect, make the dye more uniform, reduce precipitation or adhesion, and improve the solubility and mixing uniformity of the dye. The design of the knocking piece (knocking barrel, knocking spring, knocking hammer) helps to break up the particles or impurities that may be deposited on the bottom or wall of the dye barrel by providing periodic knocking in the vertical direction. This regular knocking action can prevent the solid matter in the dye from settling, ensure that the dye always maintains good fluidity and uniformity, thereby reducing the situation where impurities are blocked in the filter pores.

[0019] Preferably, the closing cover is detachably connected, a connecting rod is circumferentially fixed to the output shaft of the first motor, and the top of the stirring rod is detachably connected to the bottom of the connecting rod.

[0020] By adopting the above technical solution, the detachable connection design of the closed cover makes it easy to clean and maintain the equipment after use. For dye or other liquid mixing equipment, accumulated substances, impurities or sediments may affect the stirring effect, and regular cleaning is the key to maintaining equipment performance. Through the removable cover, the user can easily open the container and clean it thoroughly to avoid the influence of residues on the next operation. The detachable connection between the top of the stirring rod and the bottom of the connecting rod allows the user to easily replace stirring rods of different specifications or types as needed. Different stirring tasks may require stirring rods of different shapes, lengths or materials (for example, handling high-viscosity materials or stirring rods that require special designs). Through this disassembly design, not only the applicability of the equipment is improved, but also the difficulty of replacement and maintenance is reduced.

[0021] Preferably, it also includes a circulation pump and a circulation pipe, wherein a valve is provided on the circulation pipe, one end of the circulation pipe is connected to the dye barrel and is located above the filter plate, and the other end of the circulation pipe is connected to the top of the dye barrel, and the circulation pump is used to drive the dye solution to flow in the circulation pipe.

[0022] By adopting the above technical solution, the circulation pump drives the dye liquor to flow in the circulation pipe, which can ensure the uniformity and consistency of the dye in the dye barrel. Since the dye may contain different chemical components and physical properties, if it is not kept evenly mixed, it may cause uneven dyeing or precipitation of the dye during use. The circulation system can help keep the dye fully mixed and ensure the stability and consistency of each dyeing process. The design of the circulation pump and the circulation pipe can effectively prevent the dye from being stationary in the barrel for a long time, reducing the generation of precipitation and pollution. Especially for dyes that need to be filtered or stored for a long time, the circulation flow can help maintain the cleanliness and activity of the dye, thereby extending the service life of the dye.

[0023] Preferably, a regulating barrel is installed on the dye barrel, and an acidic zone and an alkaline zone are arranged in the regulating barrel. The acidic zone and the alkaline zone are respectively filled with acidic regulating liquid and alkaline regulating liquid. The dye barrel is connected with the acidic zone and the alkaline zone through a first liquid adding pipe and a second liquid adding pipe respectively. The first liquid adding pipe and the second liquid adding pipe are respectively provided with a first solenoid valve and a second solenoid valve. The first solenoid valve and the second solenoid valve are both connected to a controller. The controller controls the first solenoid valve or the second solenoid valve to open when the pH value is not within the set range.

[0024] By adopting the above technical solution, the design can monitor the pH value in the dye barrel in real time and automatically control the addition of acidic and alkaline regulating liquids. When the pH value deviates from the set range, the controller will automatically open the corresponding solenoid valve (the first solenoid valve or the second solenoid valve) as needed, and accurately add acidic or alkaline regulating liquid to restore the pH value of the dye to the set range. This automated control reduces manual intervention and improves the accuracy and consistency of the dyeing process. During the dyeing process, changes in pH will directly affect the solubility, permeability and dyeing effect of the dye. By accurately controlling the pH value, the stability of the dye solution can be maintained, ensuring good combination of the dye and the textile, thereby improving the dyeing quality. Especially when the dye requires a specific pH environment to achieve the best effect, automatic adjustment of the pH value can ensure the stability and consistency of the dyeing effect.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The controller receives the first detection signal output by the PH detection probe, which can reflect the PH value of the dye solution in real time and display these data on the connected display screen. The operator can intuitively understand the PH state of the dye solution, and timely adjust the dosage of the control agent or make other adjustments to ensure that the PH value during the dyeing process is within the ideal range, so that the liquid environment during the dyeing process can be detected in time to improve the dyeing quality; in addition, the PH monitoring system can reduce the possibility of manual intervention and operating errors, save manpower and time, and thus improve production efficiency; 2. By measuring the turbidity of the dye solution, it is possible to promptly detect possible particles or impurities in the solution, such as fiber fragments, sediments, etc. These impurities may affect the uniformity and dyeing effect of the dye during the dyeing process, so timely detection can help operators take measures, such as cleaning the delivery pipe or replacing the dye solution, to ensure the cleanliness of the dye solution, thereby improving the dyeing quality and product consistency; 3. By real-time monitoring of the pH value in the dye barrel, and automatically controlling the addition of acidic and alkaline regulating solutions. When the pH value deviates from the set range, the controller will automatically open the corresponding solenoid valve (first solenoid valve or second solenoid valve) as needed, and accurately add acidic or alkaline regulating solution to restore the pH value of the dye to the set range. This automated control reduces manual intervention and improves the accuracy and consistency of the dyeing process. During the dyeing process, changes in pH value will directly affect the solubility, permeability and dyeing effect of the dye. By accurately controlling the pH value, the stability of the dye solution can be maintained, ensuring a good combination of the dye and the textile, thereby improving the dyeing quality. Especially when the dye requires a specific pH environment to achieve the best effect, automatic pH adjustment can ensure the stability and consistency of the dyeing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an overflow dyeing machine with a detection device according to an embodiment of the present application. Figure 2 It is a partial cross-sectional schematic diagram of an overflow dyeing machine with a detection device according to an embodiment of the present application, mainly showing the dye barrel.

[0027] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0028] Figure 4 It is a structural block diagram of an overflow dyeing machine with a detection device according to an embodiment of the present application.

[0029] Explanation of the reference numerals: 100, dye vat; 110, dye barrel; 111, closing cover; 120, delivery pipe; 130, delivery pump; 140, PH detection probe; 150, turbidity detection probe; 160, display screen; 310, stirring rod; 320, stirring blade; 330, first motor; 400, controller; 500, filter plate; 510, filter hole; 520, arc block; 610, second motor; 620, driving rod; 630, driving fan blade; 640, closed cylinder; 650, closing plate; 710, knocking barrel; 720, knocking spring; 730, knocking hammer; 810, circulation pump; 820, circulation pipe; 830, valve; 910, regulating barrel; 920, first liquid adding pipe; 930, second liquid adding pipe; 940, first solenoid valve; 950, second solenoid valve. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] The embodiment of the present application discloses an overflow dyeing machine with a detection device.

[0032] Reference Figure 1 , Figure 2 An overflow dyeing machine with a detection device includes a dye barrel 110, a dye vat 100, a delivery pump 130 and a controller 400. A delivery pipe 120 is connected to the bottom of the dye barrel 110, and the other end of the delivery pipe 120 is communicated with the inside of the dye vat 100. The delivery pump 130 is used to transport the dye solution from the dye barrel 110 to the dye vat 100 through the delivery pipe 120. Two installation pipes connected with the inside of the delivery pipe 120 are installed on the delivery pipe 120. The two installation pipes are used to install a pH detection probe 140 and a turbidity detection probe 150 respectively. The pH detection probe 140 adopts a HachIntelliCAL model pH sensor, and the turbidity detection probe 150 adopts a Hach2100Q model turbidity detection probe 150. The controller 400 adopts an s7-200 model PLC.

[0033] It also includes a display screen 160, which is placed on one side of the dye vat 100. The pH detection probe 140 is used to detect the pH value of the dye solution in the delivery pipe 120 and output a first detection signal. The turbidity detection probe 150 is used to detect the turbidity of the dye solution in the delivery pipe 120 and output a second detection signal. The pH detection probe 140 and the turbidity detection probe 150 are both electrically connected to the controller 400 through wires. The controller is electrically connected to the display screen 160 through wires. The controller 400 is used to receive the first detection signal and the second detection signal, and control the display screen 160 to display the pH value and turbidity of the dye solution.

[0034] See also Figure 2 , Figure 3 A stirring device is arranged in the dye barrel 110, and the stirring device includes a stirring rod 310 and a stirring blade 320 arranged on the stirring rod 310. A closing cover 111 is installed on the dye barrel 110, and a feeding pipe is also installed on the closing cover 111. A first motor 330 is installed on the closing cover 111. The output shaft of the first motor 330 passes through the closing cover 111 and is circumferentially fixed to the stirring rod 310. The driving motor is connected to the controller 400. The controller 400 controls the first motor 330 to start when the turbidity is greater than the set value. The closing cover 111 is detachably connected, and a connecting rod is circumferentially fixed to the output shaft of the first motor 330. The top of the stirring rod 310 is detachably connected to the bottom of the connecting rod.

[0035] A filter plate 500 is arranged inside the dye barrel 110, and the filter plate 500 is arranged horizontally. A filter hole 510 is opened in the middle of the filter plate 500. The filter plate 500 is used to divide the inside of the dye barrel 110 into a stirring zone and a filtering zone. A closing structure for closing the filter hole 510 is arranged above the filter plate 500 in the stirring zone, and a stirring structure is arranged in the filtering zone. A heating rod can also be arranged in the stirring zone to assist in adjusting the turbidity and pH value of the dye solution.

[0036] The closed structure includes two closed cylinders 640 and two closed plates 650. The two closed cylinders 640 are respectively connected to the two opposite sides of the outer wall of the dye barrel 110. The piston rod of the closed cylinder 640 is connected to the closed plate 650 and the closed plate 650 is slidably connected to the top of the filter plate 500. The closed plate 650 is a semicircular plate. When the two closed plates 650 slide, they abut against each other and are in a perfect circle. At this time, the two closed plates 650 close the filter hole 510.

[0037] The stirring structure includes a second motor 610, a driving rod 620 and a driving blade 630 arranged on the driving rod 620. The second motor 610 is connected to the bottom of the dye barrel 110. The output shaft of the second motor 610 passes through the dye barrel 110 and is circumferentially fixed to the driving rod 620. A knocking piece is arranged on the driving blade 630. The knocking piece includes a knocking barrel 710, a knocking spring 720 and a knocking hammer 730. The bottom of the knocking barrel 710 is connected to the driving blade 630. The bottom of the filter plate 500 is connected to the arc block 520. The bottom of the knocking hammer 730 is slidably connected to the inner wall of the knocking barrel 710 and the sliding direction is the vertical direction. When the driving blade 630 rotates, the top of the knocking hammer 730 abuts against the arc block 520. One end of the knocking spring 720 is connected to the inner bottom wall of the knocking barrel 710, and the other end of the knocking spring 720 is connected to the bottom of the knocking hammer 730.

[0038] It also includes a circulation pump 810 and a circulation pipe 820. A valve 830 is provided on the circulation pipe 820. One end of the circulation pipe 820 is connected to the dye barrel 110 and is located above the filter plate 500. The other end of the circulation pipe 820 is connected to the top of the dye barrel 110. The circulation pump 810 is used to drive the dye solution to flow in the circulation pipe 820.

[0039] Reference Figure 2 , Figure 4 A regulating barrel 910 is installed on the dye barrel 110, and an acidic zone and an alkaline zone are arranged in the regulating barrel 910. The acidic zone and the alkaline zone are respectively connected with a first replenishing pipe and a second replenishing pipe. The acidic zone and the alkaline zone are respectively filled with an acidic regulating liquid and an alkaline regulating liquid. The first replenishing pipe and the second replenishing pipe are used to replenish the acidic regulating liquid and the alkaline regulating liquid respectively. The dye barrel 110 is connected with the acidic zone and the alkaline zone through a first liquid adding pipe 920 and a second liquid adding pipe 930 respectively. The first liquid adding pipe 920 and the second liquid adding pipe 930 are respectively provided with a first solenoid valve 940 and a second solenoid valve 950. The first solenoid valve 940 and the second solenoid valve 950 are both connected to the controller 400. When the pH value is not in the set interval, the controller 400 controls the first solenoid valve 940 or the second solenoid valve 950 to open so that the acidic regulating liquid or the alkaline regulating liquid enters the dye barrel 110.

[0040] The implementation principle of an overflow dyeing machine with a detection device is as follows: the controller 400 receives the first detection signal output by the pH detection probe 140180, which can reflect the pH value of the dye solution in real time, and display these data on the connected display screen 160. The operator can intuitively understand the pH state of the dye solution, and timely adjust the dosage of the control agent or make other adjustments to ensure that the pH value during the dyeing process is within the ideal range, so that the liquid environment during the dyeing process can be detected in time to improve the dyeing quality; in addition, the pH monitoring system can reduce the possibility of manual intervention and operation errors, save manpower and time, and thus improve production efficiency.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An overflow dyeing machine with a detection device, characterized in that: The invention comprises a dye barrel (110), a dye vat (100), and a delivery pipe (120) for connecting the dye barrel (110) and the dye vat (100); the delivery pipe (120) is provided with a pH detection probe (140); the pH detection probe (140) is connected to a controller (400); the pH detection probe (140) is used to detect the pH value of the dye solution in the delivery pipe (120) and output a first detection signal; the controller (400) is connected to a display screen (160); the controller (400) is used to receive the first detection signal and control the display screen (160) to display the pH value of the dye solution.

2. The overflow dyeing machine with a detection device according to claim 1, characterized in that: The delivery pipe (120) is also provided with a turbidity detection probe (150), the turbidity detection probe (150) being connected to the controller (400), the turbidity detection probe (150) being used to detect the turbidity of the dye solution in the delivery pipe (120) and output a second detection signal, and the controller (400) being used to receive the second detection signal and control the display screen (160) to display the turbidity of the dye solution.

3. The overflow dyeing machine with a detection device according to claim 2, characterized in that: A stirring device is arranged in the dye barrel (110), the stirring device comprising a stirring rod (310) and a stirring blade (320) arranged on the stirring rod (310); a closing cover (111) is installed on the dye barrel (110); a first motor (330) is installed on the closing cover (111); an output shaft of the first motor (330) passes through the closing cover (111) and is circumferentially fixed to the stirring rod (310).

4. The overflow dyeing machine with a detection device according to claim 3, characterized in that: The driving motor is connected to a controller (400), and the controller (400) controls the first motor (330) to start when the turbidity is greater than a set value.

5. The overflow dyeing machine with a detection device according to claim 1, characterized in that: A filter plate (500) is arranged inside the dye barrel (110), the filter plate (500) is arranged horizontally, a filter hole (510) is opened in the middle of the filter plate (500), the filter plate (500) is used to divide the inside of the dye barrel (110) into a stirring area and a filtering area, a closing structure for closing the filter hole (510) is arranged above the filter plate (500) in the stirring area, and a stirring structure is arranged in the filtering area.

6. The overflow dyeing machine with a detection device according to claim 5, characterized in that: The closed structure comprises two closed cylinders (640) and two closed plates (650); the two closed cylinders (640) are respectively connected to two opposite sides of the outer wall of the dye barrel (110); the piston rods of the closed cylinders (640) are connected to the closed plates (650) and the closed plates (650) are slidably connected to the top of the filter plate (500); the two closed plates (650) close the filter holes (510) when sliding.

7. The overflow dyeing machine with a detection device according to claim 5, characterized in that: The stirring structure comprises a second motor (610), a driving rod (620) and a driving blade (630) arranged on the driving rod (620); the second motor (610) is connected to the bottom of the dye barrel (110); the output shaft of the second motor (610) passes through the dye barrel (110) and is circumferentially fixed to the driving rod (620); a knocking piece is arranged on the driving blade (630); the knocking piece comprises a knocking barrel (710), a knocking spring (720) and a knocking hammer (730); The bottom of the barrel (710) is connected to the driving fan blade (630), the bottom of the filter plate (500) is connected to the arc block (520), the bottom of the knocking hammer (730) is slidably connected to the inner wall of the knocking barrel (710), and the sliding direction is a vertical direction. When the driving fan blade (630) rotates, the top of the knocking hammer (730) abuts against the arc block (520), one end of the knocking spring (720) is connected to the inner bottom wall of the knocking barrel (710), and the other end of the knocking spring (720) is connected to the bottom of the knocking hammer (730).

8. The overflow dyeing machine with a detection device according to claim 3, characterized in that: The closing cover (111) is detachably connected, a connecting rod is circumferentially fixed to the output shaft of the first motor (330), and the top of the stirring rod (310) is detachably connected to the bottom of the connecting rod.

9. The overflow dyeing machine with a detection device according to claim 1, characterized in that: It also includes a circulation pump (810) and a circulation pipe (820), wherein the circulation pipe (820) is provided with a valve (830), one end of the circulation pipe (820) is connected to the dye barrel (110) and is located above the filter plate (500), and the other end of the circulation pipe (820) is connected to the top of the dye barrel (110), and the circulation pump (810) is used to drive the dye solution to flow in the circulation pipe (820).

10. The overflow dyeing machine with a detection device according to claim 1, characterized in that: The dye barrel (110) is installed with a regulating barrel (910), and an acidic zone and an alkaline zone are arranged in the regulating barrel (910), and the acidic zone and the alkaline zone are respectively filled with an acidic regulating liquid and an alkaline regulating liquid, and the dye barrel (110) is connected with the acidic zone and the alkaline zone through a first liquid adding pipe (920) and a second liquid adding pipe (930), respectively, and a first solenoid valve (940) and a second solenoid valve (950) are respectively arranged on the first liquid adding pipe (920) and the second liquid adding pipe (930), and the first solenoid valve (940) and the second solenoid valve (950) are both connected to a controller (400), and the controller (400) controls the first solenoid valve (940) or the second solenoid valve (950) to open when the pH value is not within a set interval.

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