Industrial washing and dyeing machine and control method thereof

Abstract

The present invention discloses an industrial dyeing and washing machine and a control method thereof, and relates to the technical field of dyeing and washing equipment. The industrial dyeing and washing machine comprises a drum, a driving device, a transmission device and a two-speed reducer. The transmission device is arranged between the driving device and the drum, and the driving device drives the drum to rotate through the transmission device; the two-speed reducer is arranged between the driving device and the transmission device, and the two-speed reducer has a first output speed ratio and a second output speed ratio, and the first output speed ratio can make the drum run at a low speed during dyeing and washing, and the second output speed ratio can make the drum run at a high speed during dehydration. The industrial dyeing and washing machine provided by the present invention solves the problem that the low-speed operation and high-speed dehydration of large industrial dyeing and washing machines cannot be taken into account at the same time by switching the output speed ratio of the two-speed reducer.

Description

Technical Field

[0001] The present invention relates to the technical field of washing and dyeing equipment, and in particular to an industrial washing and dyeing machine and a control method thereof. Background Art

[0002] The normal operating speed of a drum-type industrial washing and dyeing machine is usually 20-45 rpm, and the optimal dehydration speed is greater than 450 rpm.

[0003] At present, most of the large-scale drum-type industrial washing and dyeing machines (with a load capacity of more than 300KG) do not have the dehydration function. A few can achieve the dehydration effect, but the main motor has a large power configuration and high power consumption, and the maximum dehydration speed can only reach about 250 rpm, which cannot achieve the best dehydration effect. Summary of the invention

[0004] An object of the present invention is to provide an industrial dyeing and washing machine, so that the industrial dyeing and washing machine can perform both low-speed dyeing and high-speed dehydration.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] An industrial washing and dyeing machine, comprising:

[0007] roller;

[0008] A driving device and a transmission device, wherein the transmission device is arranged between the driving device and the drum, and the driving device drives the drum to rotate through the transmission device;

[0009] A two-speed reducer is arranged between the driving device and the transmission device, and has a first output speed ratio and a second output speed ratio. The first output speed ratio can make the drum run at a low speed during washing and dyeing, and the second output speed ratio can make the drum run at a high speed during dehydration.

[0010] Optionally, the industrial dyeing machine further comprises a clutch, one end of which is connected to the two-speed reducer, and the other end of which is connected to the transmission device, and the clutch is used to disconnect or close the transmission connection between the two-speed reducer and the drum.

[0011] Optionally, the industrial washing and dyeing machine further comprises a transmission bearing seat, wherein the transmission bearing seat is arranged between the clutch and the transmission device, wherein a first bearing and a second bearing are arranged in the transmission bearing seat, wherein the first bearing is connected to the clutch, and the second bearing is connected to the transmission device, and the first bearing and the second bearing are linked.

[0012] Optionally, the driving device is a servo motor.

[0013] Optionally, the transmission device includes a driving wheel, a driven wheel and a belt for connecting the driving wheel and the driven wheel, the driving wheel is connected to the dual-speed reducer, and the driven wheel is connected to the drum; the transmission speed ratio of the transmission device is a set transmission speed ratio.

[0014] Optionally, a sensor is provided on one side of the driven wheel, and the sensor is used to detect the rotation speed of the driven wheel.

[0015] Optionally, the sensor is a proximity switch, and a sensed body is provided on a side of the driven wheel opposite to the proximity switch.

[0016] Optionally, the industrial washing and dyeing machine also includes a control system, which is electrically connected to the driving device, the two-speed reducer, the clutch and the sensor, respectively, to control the start and stop and output speed of the driving device, the switching of the output speed ratio of the two-speed reducer and the opening and closing of the clutch, and to receive the transmission signal of the sensor.

[0017] Another object of the present invention is to provide a control method for an industrial dyeing and washing machine to achieve low-speed dyeing and high-speed dehydration of the industrial dyeing and washing machine.

[0018] To achieve this object, the present invention adopts the following technical solutions:

[0019] A control method for an industrial washing and dyeing machine, wherein the method is applied to any of the above industrial washing and dyeing machines, when the drum enters a washing and dyeing state, the output speed of the driving device is controlled to be a first speed, the output speed ratio of the two-speed reducer is a first output speed ratio, and the clutch is closed; when the drum enters a dehydration state, the output speed of the driving device is controlled to be a second speed, the clutch is first disconnected, the output speed ratio of the two-speed reducer is switched to the second output speed ratio, and then the clutch is closed.

[0020] Optionally, after the output speed ratio of the dual-speed reducer is switched to the second output speed ratio and before the clutch is closed, the method further includes controlling the output rotation speed of the drive device to be the same as the rotation speed of the drum.

[0021] Beneficial effects of the present invention:

[0022] The industrial dyeing and washing machine provided by the present invention has a two-speed reducer arranged between the driving device and the transmission device, and the output speed ratio of the two-speed reducer is switched to realize the low-speed operation of the industrial dyeing and washing machine during dyeing and the high-speed operation during dehydration. The industrial dyeing and washing machine provided by the present invention solves the problem that the low-speed operation and high-speed dehydration of large industrial dyeing and washing machines cannot be taken into account at the same time by switching the output speed ratio of the two-speed reducer.

[0023] The industrial washing and dyeing machine provided by the present invention can disconnect the transmission between the two-speed reducer and the drum when switching the output speed ratio by closing and opening the clutch, thereby ensuring that the two-speed reducer can switch the output speed ratio under static conditions and avoiding damage to the internal gears when the two-speed reducer is dynamically switched.

[0024] The industrial washing and dyeing machine provided by the present invention has a driving device which is a servo motor. The servo motor has a constant torque output function. In combination with the switching of the output speed ratio of the double-speed reducer, the power required by the driving device of the large industrial washing and dyeing machine is reduced, the energy consumption is reduced, and the effect of energy saving and environmental protection is achieved.

[0025] The control method of the industrial dyeing and washing machine provided by the present invention sets the output speed of the driving device to the first speed, sets the output speed ratio of the two-speed reducer to the first output speed ratio, and closes the clutch to realize low-speed dyeing and washing of the industrial dyeing and washing machine when the drum enters the dyeing and washing state; when the drum enters the dehydration state, first sets the output speed of the driving device to the second speed so that the drum can maintain the running state under the inertia state, then disconnects the clutch, and switches the output speed ratio of the two-speed reducer to the second output speed ratio to realize high-speed dehydration of the industrial dyeing and washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an industrial washing and dyeing machine provided by an embodiment of the present invention.

[0027] In the figure:

[0028] 1. Servo motor; 2. Two-speed reducer; 3. Electromagnetic clutch; 4. Transmission bearing seat; 5. Transmission device; 6. Spindle; 7. Roller; 8. Proximity switch; 10. Rear sealing plate; 11. Cover plate; 12. Outer cylinder;

[0029] 51. driving wheel; 52. driven wheel; 53. belt; 91. first bearing seat; 92. second bearing seat. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0032] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] In the prior art, a drum-type industrial dyeing machine with a load capacity of 500KG (drum size is 1875mm*1815mm) needs to be equipped with a 60KW*4P variable frequency motor to drive, and a pulley is used to transmit and achieve the purpose of deceleration and increasing torque. For example, the speed ratio of the pulley is designed to be 1:6, and the output speed of the 60KW*4P variable frequency motor is not higher than 1500 rpm. During dehydration, the output is at the maximum speed of the variable frequency motor. After the 1:6 pulley transmission, the maximum speed of the drum dehydration is 1500 / 6=250 rpm. The dehydration effect is not ideal, and it needs to be transferred to a special dehydrator for secondary dehydration. The normal operating speed of industrial washing and dyeing machines is usually 20-45 rpm. For example, if the drum speed is set to 35 rpm during normal operation, the output speed of the variable frequency motor should be 35*6 (pulley speed ratio) = 210 rpm. The variable frequency motor is prone to heat and damage when it is in low-frequency operation (7Hz) for a long time. The output torque of the variable frequency motor is greatly reduced when it works at low frequency, so the only way to compensate for the lack of output torque at low frequency is to increase the power of the variable frequency motor itself. This design requires a high-power motor to drive it, which consumes a lot of power and cannot achieve the ideal dehydration speed.

[0036] like Figure 1 As shown, this embodiment provides an industrial washing and dyeing machine, comprising a drum 7, a driving device, a transmission device 5 and a two-speed reducer 2. The transmission device 5 is arranged between the driving device and the drum 7, and the driving device drives the drum 7 to rotate through the transmission device 5; the two-speed reducer 2 is arranged between the driving device and the transmission device 5, and the two-speed reducer 2 has a first output speed ratio and a second output speed ratio, the first output speed ratio can make the drum 7 run at a low speed during washing and dyeing, and the second output speed ratio can make the drum 7 run at a high speed during dehydration.

[0037] The industrial dyeing and washing machine provided in this embodiment is provided with a two-speed reducer 2 between the driving device and the transmission device 5. By switching the output speed ratio of the two-speed reducer 2, the industrial dyeing and washing machine can be operated at a low speed during dyeing and at a high speed during dehydration. The industrial dyeing and washing machine provided in this embodiment solves the problem that the large industrial dyeing and washing machine cannot operate at a low speed and dehydrate at a high speed by switching the output speed ratio of the two-speed reducer 2.

[0038] The industrial dyeing and washing machine provided in this embodiment further includes a cover plate 11 and an outer cylinder 12, the outer cylinder 12 and the cover plate 11 are fixedly connected by bolts, and the drum 7 is arranged in the outer cylinder 12. The first output speed ratio of the two-speed reducer 2 is 1:5, and the second output speed ratio is 1:1. When the industrial dyeing and washing machine is washing and dyeing, the output speed ratio of the two-speed reducer 2 is 1:5; when the industrial dyeing and washing machine is dehydrating, the output speed ratio of the two-speed reducer 2 is 1:1.

[0039] Optionally, the industrial washing and dyeing machine further includes a clutch, one end of which is connected to the two-speed reducer 2, and the other end is connected to the transmission device 5, and the clutch is used to disconnect or close the transmission connection between the two-speed reducer 2 and the drum 7. In this embodiment, the clutch is an electromagnetic clutch 3, and when the electromagnetic clutch 3 is powered on, the two-speed reducer 2 is connected to the transmission device 5; when the power is off, the two-speed reducer 2 is disconnected from the transmission device 5. Of course, in other embodiments, the clutch can also be a friction clutch or a hydraulic clutch.

[0040] Optionally, the industrial washing and dyeing machine further includes a transmission bearing seat 4, which is arranged between the clutch and the transmission device 5, and a first bearing and a second bearing are arranged in the transmission bearing seat 4, the first bearing is connected to the clutch, the second bearing is connected to the transmission device 5, and the first bearing and the second bearing are linked. In this embodiment, a first connecting shaft is arranged at the output end of the electromagnetic clutch 3, and a second connecting shaft is arranged at the input end of the transmission device 5, the first connecting shaft is connected to the first bearing, and the second connecting shaft is connected to the second bearing, so as to realize the transmission connection between the clutch and the transmission device 5. The transmission bearing seat 4 is fixed on the connecting plate inside the industrial washing and dyeing machine, and is used to support and connect the clutch and the transmission device 5.

[0041] The industrial dyeing machine provided in this embodiment, through the closing and opening of the clutch, enables the two-speed reducer 2 to disconnect the transmission between the two-speed reducer 2 and the drum 7 when switching the output speed ratio, thereby ensuring that the two-speed reducer 2 can switch the output speed ratio under static conditions, avoiding damage to the internal gears when the two-speed reducer 2 is dynamically switched.

[0042] Optionally, the driving device is a servo motor 1. The servo motor 1 has a constant output torque function. When the speed of the driving device is less than the first set speed, the constant output torque is the first torque; when the speed of the driving device is greater than the second set speed, the constant output torque is the second torque. In this embodiment, the model of the servo motor 1 is AKM83T, the power is 16.1KW, the number of poles is 2 poles, and the maximum speed is 3000 rpm. The first set speed of the servo motor 1 is 2200 rpm, and the first torque output by the servo motor 1 when working below 2200 rpm is 70NM. The second set speed of the servo motor 1 is 2500 rpm, and the second torque output by the servo motor 1 when working above 2500 rpm is 60NM. It should be noted that the model of the servo motor 1 can be selected according to specific needs.

[0043] The industrial laundry machine provided in this embodiment has a driving device which is a servo motor 1. The servo motor 1 has a constant torque output function. In combination with the switching of the output speed ratio of the dual-speed reducer 2, the power required for the driving device of the large industrial laundry machine is reduced, the energy consumption is reduced, and the effect of energy saving and environmental protection is achieved.

[0044] Optionally, the transmission device 5 includes a driving wheel 51, a driven wheel 52, and a belt 53 for connecting the driving wheel 51 and the driven wheel 52, the driving wheel 51 is rotatably connected to the two-speed reducer 2, and the driven wheel 52 is connected to the drum 7; the transmission speed ratio of the transmission device 5 is a set transmission speed ratio. In this embodiment, the diameter of the driving wheel 51 is 200 mm, the diameter of the driven wheel 52 is 1000 mm, the transmission ratio is set to 1:5, and the transmission device 5 is used to achieve the purpose of deceleration and torque increase. Of course, in other embodiments, the set transmission ratio can be set according to demand.

[0045] Optionally, a sensor is provided on one side of the driven wheel 52, and the sensor is used to detect the rotation speed of the driven wheel 52. Specifically, the sensor is a proximity switch 8, and a sensed body is provided on the side of the driven wheel 52 opposite to the proximity switch 8. In the present embodiment, the sensed body is a stainless steel sheet with a width of 50 mm, and the stainless steel sheet rotates with the driven wheel 52. When the stainless steel sheet rotates to a position directly opposite to the proximity switch 8, it is sensed by the proximity switch 8 and recorded as one rotation of the driven wheel 52. It should be noted that the driven wheel 52 is connected to the main shaft 6 of the drum 7, and is used to drive the drum 7 to rotate. The rotation speed of the driven wheel 52 detected by the proximity switch 8 is the rotation speed of the drum 7. The proximity switch 8 is used to detect the rotation speed of the drum 7 when it keeps running due to inertia after the electromagnetic clutch 3 is disconnected. The industrial washing and dyeing machine is also provided with a rear sealing plate 10, and a first bearing seat 91 and a second bearing seat 92 are respectively provided on both sides of the driven wheel 52, and the first bearing seat 91 and the second bearing seat 92 are respectively fixedly connected to the cover plate 11 and the rear sealing plate 10, thereby fixing the driven wheel 52 in the industrial washing and dyeing machine. Of course, in other embodiments, the sensor can also be a linear displacement sensor or a photoelectric displacement sensor.

[0046] Optionally, the industrial washing and dyeing machine further includes a control system, which is electrically connected to the driving device, the two-speed reducer 2, the clutch and the sensor, respectively, to control the start and stop of the driving device and the output speed, the switching of the output speed ratio of the two-speed reducer 2 and the opening and closing of the clutch, and to receive the transmission signal of the sensor. In this embodiment, the proximity switch 8 sends the number of times the stainless steel sheet is sensed to the control system, and the control system calculates the speed of the driven wheel 52 according to the diameter of the driven wheel 52 and the number of times the signal sent by the proximity switch 8 is received within a specified time, that is, the speed of the drum 7.

[0047] This embodiment also provides a control method for an industrial washing and dyeing machine, which is applied to the above-mentioned industrial washing and dyeing machine. When the drum 7 enters the washing and dyeing state, the output speed of the driving device is controlled to be the first speed, the output speed ratio of the two-speed reducer 2 is the first output speed ratio, and the clutch is closed; when the drum 7 enters the dehydration state, the output speed of the driving device is controlled to be the second speed, the clutch is first disconnected, the output speed ratio of the two-speed reducer 2 is switched to the second output speed ratio, and then the clutch is closed. Usually, the normal operating speed of an industrial washing and dyeing machine is usually 20-45 rpm. In this embodiment, when the industrial washing and dyeing machine is set to work normally, the speed of the drum 7 is 35 rpm. At this time, the first speed output by the servo motor 1 is 875 rpm, the relative frequency is 14.58 Hz, the output torque is 70 NM, the output speed ratio of the two-speed reducer 2 is 1:5, and the electromagnetic clutch 3 is in the power-on closed state. Then, the torque output to the drum 7 through the transmission speed ratio of 1:5 of the transmission device 5 is 70 NM*5*5=1750 NM, and the torque at this time is sufficient to drive the drum 7 to work normally at a low speed. After the washing and dyeing program is completed, it enters high-speed dehydration. At this time, the servo motor 1 begins to accelerate continuously until the second speed is 3000 rpm, the relative frequency is 50Hz, and the output torque is 60NM. At this time, the output speed ratio of the two-speed reducer 2 is still 1:5, and the electromagnetic clutch 3 is in the power-on closed state. The torque output to the drum 7 through the transmission device 5 with a transmission speed ratio of 1:5 is 60NM*5*5=1500NM, and the speed of the drum 7 is 120 rpm. The electromagnetic clutch 3 is powered off and disconnected (it takes about 0.2 seconds), and the speed of the servo motor 1 is quickly reduced from 3000 rpm to 0 rpm static state (it takes about 2 seconds), and the drum 7 continues to operate due to inertia. It should be noted that the reason for accelerating the servo motor 1 to 3000 rpm before the electromagnetic clutch 3 is disconnected is to allow the drum 7 to continue to rotate under the action of inertia during the period when the electromagnetic clutch 3 is disconnected; if the servo motor 1 is stopped before the electromagnetic clutch 3 is disconnected, and the drum 7 stops rotating during the period when the two-speed reducer 2 switches the output speed ratio, then after the output speed ratio of the two-speed reducer 2 is switched to 1:1, the maximum output torque of the servo motor 1 is 70NM*1*5=350NM, which cannot drive the drum 7 to rotate.

[0048] The control method of the industrial dyeing and washing machine provided in this embodiment is as follows: when the drum 7 enters the dyeing and washing state, the output speed of the driving device is set to the first speed, the output speed ratio of the two-speed reducer 2 is set to the first output speed ratio, and the clutch is closed to realize low-speed dyeing and washing of the industrial dyeing and washing machine; when the drum 7 enters the dehydration state, it is necessary to first set the output speed of the driving device to the second speed so that the drum 7 can maintain the operating state under the inertia state, and then disconnect the clutch, switch the output speed ratio of the two-speed reducer 2 to the second output speed ratio, and then close the clutch to realize high-speed dehydration of the industrial dyeing and washing machine.

[0049] Optionally, after the output speed ratio of the two-speed reducer 2 is switched to the second output speed ratio, before the clutch is closed, the output speed of the driving device is controlled to be the same as the speed of the drum 7. In this embodiment, the two-speed reducer 2 is switched from an output speed ratio of 1:5 to an output speed ratio of 1:1 in a static state (taking about 2 seconds); after the two-speed reducer 2 is switched, the servo motor 1 is restarted, and the speed of the drum 7 when it is kept running due to the inertia state is tracked through the proximity switch 8. At this time, the speed of the drum 7 is reduced from the original 120 rpm to about 112 rpm. At present, there is only a 1:5 transmission speed ratio of the transmission device 5, so the speed of the servo motor 1 must reach 112*5=560 rpm to ensure that it is the same as the speed of the drum 7 (taking about 0.2 seconds). When the speed of the servo motor 1 is synchronized with the speed of the drum 7, the electromagnetic clutch 3 is powered on and closed again (taking about 0.5 seconds), and the power transmitted to the drum 7 by the servo motor 1 is connected again. The whole switching process takes about 5.3 seconds in total. Then the servo motor 1 speeds up again, slowly increasing from 560 rpm to 2500 rpm, and the relative frequency is 41.67 Hz. At this time, the output speed ratio of the two-speed reducer 2 is 1:1, and the transmission speed ratio of the transmission device 5 is 1:5. When the speed of the servo motor 1 reaches more than 2500 rpm, the speed of the drum 7 can reach a high-speed dehydration state of more than 500 rpm.

[0050] The working process of the industrial dyeing machine provided in this embodiment is as follows:

[0051] (1) The output speed of the servo motor 1 is set to 875 rpm, the relative frequency is 14.58 Hz, and the output torque is 70 NM. At this time, the output speed ratio of the two-speed reducer 2 is 1:5, the electromagnetic clutch 3 is in a closed state, the transmission speed ratio of the transmission device 5 is 1:5, and the torque transmitted to the drum 7 is 70 NM*5*5=1750 NM, and the washing and dyeing machine enters a low-speed washing and dyeing state.

[0052] (2) After the washing and dyeing program is completed, the servo motor 1 is first accelerated continuously until the speed reaches 3000 rpm, the relative frequency is 50 Hz, and the output torque is 60 NM. At this time, the output speed ratio of the two-speed reducer 2 is still 1:5, and the electromagnetic clutch 3 is in the energized closed state. The torque output to the drum 7 through the transmission device 5 with a transmission speed ratio of 1:5 is 60 NM*5*5=1500 NM. At this time, the speed of the drum 7 is 120 rpm.

[0053] (3) The electromagnetic clutch 3 is powered off and disconnected, and the servo motor 1 is controlled to stop rotating, so that the two-speed reducer 2 stops rotating, and the drum 7 continues to operate due to inertia.

[0054] (4) The two-speed reducer 2 switches the output speed ratio in a static state, switching the output speed ratio from the original 1:5 to 1:1.

[0055] (5) Restart the servo motor 1, and track the speed of the roller 7 when it keeps running due to inertia through the proximity switch 8, and accelerate the servo motor 1 to move synchronously with the roller 7.

[0056] (6) When the rotation speed of the servo motor 1 is the same as the rotation speed of the drum 7, the electromagnetic clutch 3 is energized and closed, and the power transmitted from the servo motor 1 to the drum 7 is connected again.

[0057] (7) The servo motor 1 is accelerated to 2500 rpm again. At this time, the rotation speed of the drum 7 is 500 rpm, entering the high-speed dehydration state.

[0058] (8) The high-speed dehydration state of the washing and dyeing machine can be maintained for 2-3 minutes to complete the dehydration process, and the servo motor 1 is decelerated to a stationary state. At this time, the output speed ratio of the two-speed reducer 2 is switched to 1:5 for the next use.

[0059] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An industrial dyeing machine, characterized in that: include: Roller (7); A driving device and a transmission device (5), wherein the transmission device (5) is arranged between the driving device and the roller (7), and the driving device drives the roller (7) to rotate through the transmission device (5); a two-speed reducer (2), the two-speed reducer (2) being arranged between the driving device and the transmission device (5), the two-speed reducer (2) having a first output speed ratio and a second output speed ratio, the first output speed ratio enabling the drum (7) to run at a low speed during washing and dyeing, and the second output speed ratio enabling the drum (7) to run at a high speed during dehydration; The industrial dyeing machine further comprises a clutch, one end of which is connected to the two-speed reducer (2) and the other end of which is connected to the transmission device (5), and the clutch is used to disconnect or close the transmission connection between the two-speed reducer (2) and the drum (7); The transmission device (5) comprises a driving wheel (51), a driven wheel (52) and a belt (53) for connecting the driving wheel (51) and the driven wheel (52); the driving wheel (51) is connected to the dual-speed reducer (2), and the driven wheel (52) is connected to the roller (7); the transmission speed ratio of the transmission device (5) is a set transmission speed ratio.

2. The industrial dyeing machine according to claim 1, characterized in that: The industrial dyeing machine further comprises a transmission bearing seat (4), wherein the transmission bearing seat (4) is arranged between the clutch and the transmission device (5), wherein a first bearing and a second bearing are arranged in the transmission bearing seat (4), wherein the first bearing is connected to the clutch, and the second bearing is connected to the transmission device (5), and the first bearing and the second bearing are linked.

3. The industrial dyeing machine according to claim 1, characterized in that: The driving device is a servo motor (1).

4. The industrial dyeing machine according to claim 1, characterized in that: A sensor is provided on one side of the driven wheel (52), and the sensor is used to detect the rotation speed of the driven wheel (52).

5. The industrial dyeing machine according to claim 4, characterized in that: The sensor is a proximity switch (8), and a sensed body is provided on the side of the driven wheel (52) opposite to the proximity switch (8).

6. The industrial dyeing machine according to any one of claims 1 to 5, characterized in that: The industrial washing and dyeing machine also includes a control system, which is electrically connected to the driving device, the two-speed reducer (2), the clutch and the sensor respectively, and is used to control the start and stop and output speed of the driving device, the switching of the output speed ratio of the two-speed reducer (2) and the opening and closing of the clutch, and receive the transmission signal of the sensor.

7. A control method for an industrial washing and dyeing machine, characterized in that: Applicable to the industrial washing and dyeing machine as described in any one of claims 1 to 6, when the drum (7) enters the washing and dyeing state, the output speed of the driving device is controlled to be a first speed, the output speed ratio of the two-speed reducer (2) is a first output speed ratio, and the clutch is closed; when the drum (7) enters the dehydration state, the output speed of the driving device is controlled to be a second speed, the clutch is first disconnected, the output speed ratio of the two-speed reducer (2) is switched to the second output speed ratio, and then the clutch is closed.

8. The control method of the industrial dyeing machine according to claim 7, characterized in that: After the output speed ratio of the dual-speed reducer (2) is switched to the second output speed ratio and before the clutch is closed, the method further includes controlling the output speed of the drive device to be the same as the speed of the drum (7).

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