Damper, fabric processing equipment and control method

Abstract

The invention relates to a damper, fabric processing equipment and a control method in the technical field of fabric processing equipment, the damper comprises a sleeve and a piston rod, the piston rod comprises an outer-layer rod sleeve and an inner-layer sleeve rod, an annular separation cavity is formed between the outer-layer rod sleeve and the inner-layer sleeve rod, and the sleeve is slidably arranged in the annular separation cavity in a sleeved mode; and a damping medium is filled between the inner wall of the sleeve and the outer wall of the inner-layer sleeve rod, and / or a damping medium is filled between the outer wall of the sleeve and the inner wall of the outer-layer rod sleeve. The damper integrates the functions of damping, temperature adjustment, acoustic noise reduction and the like through the design of a multi-layer composite structure, solves the problems that a traditional damper is attenuated in performance in a high-temperature environment, high in viscosity at a low temperature, large in operation noise, complex in structure, redundant in parts and the like, enables a damping medium to be always in an optimal working temperature range, and improves the working efficiency. Therefore, the damper achieves the comprehensive technical effects that the damping performance is stable, the noise of the whole machine is reduced, the service life of the system is prolonged, and the production cost is controllable.

Description

Technical Field

[0001] This invention relates to the field of fabric processing equipment technology, and in particular to a damper, fabric processing equipment and control method. Background Technology

[0002] In the field of fabric processing equipment, such as drum washing machines, significant vibration and noise are generated during operation due to factors such as the high-speed rotation of the drum and uneven fabric distribution. Existing technologies typically employ damper structures to absorb vibration energy and improve the operational stability of the washing machine. Common washing machine damper structures use a single-structure sleeve and a damping medium of fixed viscosity, with vibration reduction achieved through the flow of the damping medium within the sleeve.

[0003] This type of damper has the following problems in practical applications: 1. High temperature sensitivity: Due to the use of a damping medium with a fixed viscosity, its fluidity is significantly affected by temperature. At low temperatures, the viscosity of the damping medium increases or even solidifies, leading to a decrease in damping effect; at high temperatures, the damping medium may deform, affecting its service life.

[0004] 2. Noise problem is prominent: During operation, the damper swings and pulls along with the vibration of the outer cylinder, causing mechanical noise and affecting the user experience. Summary of the Invention

[0005] The technical problem this invention aims to solve is that in the prior art, dampers are highly temperature sensitive, and their fluidity is significantly affected by temperature. During operation, the damper oscillates and pulls along with the vibration of the outer cylinder, causing mechanical noise. Therefore, this invention provides a damper, fabric processing equipment, and a control method.

[0006] The present invention aims to provide a damper comprising: Sleeve; A piston rod, comprising an outer rod sleeve and an inner rod sleeve, wherein an annular cavity is formed between the outer rod sleeve and the inner rod sleeve, and the sleeve is slidably fitted within the annular cavity; The inner wall of the sleeve and the outer wall of the inner sleeve are filled with a damping medium, and / or the outer wall of the sleeve and the inner wall of the outer sleeve are filled with a damping medium.

[0007] In some embodiments, an annular cavity is formed inside the wall of the outer sleeve, and a sound-absorbing medium and / or a phase change material medium are disposed inside the annular cavity; The sound-absorbing medium is configured to absorb the noise generated by the damper during operation by utilizing the properties of the sound-absorbing material. The phase change material medium is configured to utilize the properties of the phase change material to regulate the temperature of the damper, thereby maintaining the damping medium within a preset operating temperature range.

[0008] In some embodiments, the outer sleeve includes an inner peripheral sidewall, an outer peripheral sidewall located on the inner peripheral sidewall, and an end wall sealed between the upper and lower ends of the inner peripheral sidewall and the outer peripheral sidewall. The outer peripheral sidewall, the inner peripheral sidewall, and the end walls at both ends together enclose the annular cavity. The sound-absorbing medium is attached to the outer peripheral wall in a layered structure, and the phase change material medium is attached to the inner peripheral wall in a layered structure.

[0009] In some embodiments, the sound-absorbing medium is provided with a plurality of sound-absorbing holes on the side away from the outer peripheral wall. Each sound-absorbing hole forms a stepped hole structure with a gradually decreasing diameter along the axis of the sound-absorbing hole, and the stepped hole structure has a larger diameter the further away from the outer peripheral wall.

[0010] In some embodiments, the plurality of sound-absorbing holes are arranged in a honeycomb array.

[0011] In some embodiments, the end wall is detachably and fixedly connected to the inner peripheral sidewall and the outer peripheral sidewall.

[0012] In some embodiments, the inner wall of the sleeve is provided with the damping medium, the inner wall of the outer sleeve and the outer wall of the inner sleeve are both provided with anti-corrosion and wear-resistant coatings, a sliding pair is formed between the sleeve and the inner sleeve to form a damped sliding connection between the sleeve and the inner sleeve, and the outer wall of the sleeve and the inner wall of the outer sleeve are spaced apart.

[0013] In some embodiments, the damper includes: A temperature control component, which is disposed on the outer rod sleeve, includes: a first temperature sensing element and a temperature regulating element; The temperature control component is configured such that when the first temperature sensing element detects that the temperature of the outer sleeve is not within the preset temperature range, the temperature regulating component is controlled to operate to reduce or increase the temperature of the outer sleeve to the preset temperature range.

[0014] In some embodiments, the damper includes: The second temperature sensing element is disposed on the piston rod. The second temperature sensing element is used to obtain the temperature information of the damping medium in order to determine whether the phase change material medium is malfunctioning.

[0015] In some embodiments, the damper includes: A noise reduction component, the noise reduction component comprising: a sound sensor and a sound wave transmitter; The noise reduction component is configured such that, based on the noise signal of the damper obtained by the sound sensor, the sound wave transmitter is controlled to emit a reverse sound wave to suppress the noise of the damper.

[0016] In some embodiments, a fabric treatment apparatus is provided, comprising: The aforementioned damper; A housing and an outer cylinder, wherein the outer cylinder is disposed within the housing; The sleeve is hinged to the outer cylinder at one end outside the annular cavity, the bottom end of the outer rod sleeve is hinged to the base, and the base is fixedly connected to the inner wall of the box. The damper is configured to adjust the temperature of the damping medium in real time according to the operating status of the fabric processing equipment.

[0017] In some embodiments, a control method for the above-described fabric processing equipment is provided. During the operation of the fabric processing equipment, the temperature of the damping medium in the damper is obtained. When the temperature of the damping medium is higher than the maximum value of the preset temperature range, the rotation frequency of the motor of the fabric processing equipment is reduced to keep the temperature of the damping medium within the preset temperature range.

[0018] The solution provided by this invention has the following advantages compared with the prior art: This damper, through a multi-layered composite structure design, integrates damping, temperature regulation, and acoustic noise reduction functions. It solves the problems of traditional dampers, such as performance degradation at high temperatures, increased viscosity at low temperatures, high operating noise, complex structure, and redundant parts. The outer sleeve and annular cavity facilitate heat exchange with the sleeve and inner sleeve rod at high temperatures and provide insulation for the sleeve and inner sleeve rod at low temperatures, ensuring the damping medium remains within its optimal operating temperature range. This achieves automatic temperature regulation, preventing failure due to decreased fluidity and vibration reduction performance of the damping medium, and guaranteeing stable vibration reduction for the fabric treatment cylinder. Furthermore, the outer sleeve blocks and dissipates noise generated by the damper, making it quieter during operation and improving the user experience. Thus, this damper achieves a comprehensive technical effect of stable vibration reduction performance, reduced overall noise, extended system life, and controllable production costs. Attached Figure Description

[0019] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a cross-sectional view of the damper shown in an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of a partial structure of the damper shown in an embodiment of the present invention; Figure 4 This is a schematic diagram of the sound-absorbing medium structure shown in an embodiment of the present invention; Figure 5 This is a partial schematic diagram of the fabric processing equipment shown in an embodiment of the present invention; Figure 6 This is a flowchart illustrating the control method according to an embodiment of the present invention; Figure 7 This is a schematic diagram illustrating the heat absorption and release principle of the phase change material medium in an embodiment of the present invention.

[0020] In the diagram: 1-sleeve, 101-vent hole, 2-piston rod, 201-outer rod sleeve, 2011-annular cavity, 2012-sound absorbing medium, 2013-phase change material medium, 2015-inner peripheral wall, 2014-outer peripheral wall, 2016-end wall, 202-inner sleeve rod, 203-annular cavity, 301-outer hole, 302-inner hole, 5-outer cylinder, 6-base.

[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0022] In the description of this invention, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Drum washing machines generate significant vibration and noise during operation due to factors such as the high-speed rotation of the drum and uneven fabric distribution. Current technology typically employs damper structures to absorb vibration energy and improve the washing machine's operational stability. Common washing machine damper structures use a single-structure sleeve and a damping medium of fixed viscosity; the vibration reduction effect is achieved through the flow of the damping medium within the sleeve.

[0025] This type of damper has the following problems in practical applications: 1. High temperature sensitivity: Due to the use of a damping medium with a fixed viscosity, its fluidity is significantly affected by temperature. At low temperatures, the viscosity of the damping medium increases or even solidifies, leading to a decrease in damping effect; at high temperatures, the damping medium may deform, affecting its service life.

[0026] 2. Noise problem is prominent: During operation, the damper swings and pulls along with the vibration of the outer cylinder, causing mechanical noise and affecting the user experience.

[0027] Based on this, the following embodiments are proposed.

[0028] Example 1: like Figure 1 and Figure 5 As shown, this embodiment provides a damper, which includes a sleeve 1 and a piston rod 2. The piston rod 2 includes an outer sleeve 201 and an inner sleeve 202. An annular cavity 203 is formed between the outer sleeve 201 and the inner sleeve 202. The sleeve 1 is located in the annular cavity 203 and is slidably connected to the annular cavity 203. The sleeve 1 can form a damped sliding connection with the inner wall of the outer sleeve 201 through a damping medium. The sleeve 1 can also form a damped sliding connection with the outer wall of the inner sleeve 202 through a damping medium. The sleeve 1 can also form a damped sliding connection with both the inner wall of the outer sleeve 201 and the outer wall of the inner sleeve 202 simultaneously through a damping medium. Alternatively, the sleeve 1 can form a damped sliding connection with both the inner wall of the outer sleeve 201 and the outer wall of the inner sleeve 202 individually through a damping medium.

[0029] In this embodiment, the sleeve 1 of the damper is connected to the outer wall of the inner sleeve rod 202 by a damping medium in a damped sliding connection. This damper can be applied to fabric processing equipment to provide vibration reduction for the fabric processing drum. Because the mass distribution of the fabric inside the fabric processing drum is not uniform, eccentric force is easily generated when the inner drum assembly rotates, causing the outer drum assembly 5 to vibrate as well. The damper will expand and contract more frequently in the washing and dehydration modes of the fabric processing equipment. During this process, the damping medium will be sheared between the sleeve 1 and the inner sleeve rod 202, generating damping force, thereby consuming mechanical energy and absorbing the periodic vibration energy generated by the unbalanced rotation of the inner drum, so as to achieve the purpose of vibration reduction and noise reduction. The sleeve 1 is provided with a vent hole 101, which is located outside the annular cavity 203, for drawing air into the sleeve 1 or expelling air from the sleeve 1, ensuring that the sleeve 1 can reciprocate within the annular cavity 203.

[0030] The outer sleeve 201 is made of a metal material with good thermal conductivity. Both the inner wall of the outer sleeve 201 and the outer wall of the inner sleeve 202 are coated with an anti-corrosion and wear-resistant coating. This allows the outer sleeve 201 and the inner sleeve 202 to withstand the high-frequency expansion and contraction movements of the damper, thereby improving the overall structural strength of the damper. The damping medium is coated on the inner wall of the sleeve 1, positioned between the sleeve 1 and the outer wall of the inner sleeve 202. The tight fit between the inner wall of the sleeve 1 and the outer wall of the inner sleeve 202 creates a sliding pair between them. The outer sleeve 201 and the inner sleeve 202 are connected together, and heat exchange is possible between them.

[0031] The outer wall of sleeve 1 and the outer wall of inner sleeve rod 202 are spaced apart from the inner wall of outer sleeve 201. To prevent excessive friction caused by contact between the outer wall of sleeve 1 and the inner wall of outer sleeve 201, and to provide heat dissipation space for phase change material medium 2013, a gap of more than 2 mm is left between the inner wall of outer sleeve 201 and the outer wall of sleeve 1. This forms an annular cavity 203 between sleeve 1, inner sleeve rod 202 and outer sleeve 201. In this way, outer sleeve 201 can cover the outer circumferential surface of sleeve 1, allowing outer sleeve 201 to exchange heat with sleeve 1 and inner sleeve rod 202 through connection, and also through annular cavity 203. This outer sleeve 201 can reduce the noise generated by the sliding pair and regulate the temperature of the sliding pair, keeping the damper in good working condition. The working process of the damper is as follows: The end of sleeve 1 away from piston rod 2 is rotatably connected to the fabric processing cylinder, and the end of piston rod 2 away from sleeve 1 is rotatably connected to the base of the fabric processing equipment. When the fabric processing cylinder vibrates, the damper will frequently extend and retract with the vibration of the fabric processing cylinder. When the fabric processing cylinder moves towards the base of the fabric processing equipment, the damper contracts, and sleeve 1 moves towards the annular cavity 203. The air between sleeve 1 and inner sleeve rod 202 is squeezed out through the vent hole 101. When the fabric processing cylinder moves away from the base of the fabric processing equipment, the damper extends, and sleeve 1 moves away from the annular cavity 203. The air outside the damper is drawn into the space between sleeve 1 and inner sleeve rod 202 through the vent hole 101.

[0032] During the contraction and expansion of the damper, the damping medium and the air between the sleeve 1 and the inner sleeve rod 202 are compressed and sheared, generating damping force in the process. This force resists the relative movement between the sleeve 1 and the inner sleeve rod 202, thus dissipating the axial vibration energy applied to the damper by the fabric treatment cylinder. The connection between the sleeve 1 and the fabric treatment cylinder, as well as the connection between the piston rod 2 and the fabric treatment equipment base, can dissipate the radial and shear vibration energy applied to the damper by the relative rotation between the damper and the fabric treatment cylinder and the fabric treatment equipment base. This ensures that the sleeve 1 and the inner sleeve rod 202 of the damper always maintain coaxial relative movement, improving the stability and reliability of the damper during vibration reduction.

[0033] When the fabric processing cylinder rotates at high speed, the damper's expansion and contraction frequency is relatively fast. At this time, the damping medium will generate aerodynamic noise when it is subjected to severe shearing. The relative sliding between the sleeve 1 and the inner sleeve rod 202 will generate friction noise. When these noises propagate to the outside of the damper through the annular cavity 203, they will be blocked by the outer rod sleeve 201. The presence of the outer rod sleeve 201 causes the noise to bounce continuously in the annular cavity 203 until its energy is exhausted, thus enabling the damper to achieve its own noise reduction effect through the outer rod sleeve 201.

[0034] During the frequent contraction and expansion of the damper, the heat generated by the friction between the sleeve 1 and the inner sleeve rod 202 will cause the temperature of the sleeve 1 and the inner sleeve rod 202 to gradually rise. The inner wall of the outer rod sleeve 201 can absorb the heat by exchanging heat with the sleeve 1 and the inner sleeve rod 202 through the annular cavity 203, and release the heat to the outside of the damper through the outer wall of the outer rod sleeve 201, so that the temperature of the sleeve 1 and the inner sleeve rod 202 is reduced to the optimal operating temperature range of the damping medium.

[0035] When the damper is operating at a low temperature, the outer sleeve 201 continuously concentrates the heat generated by friction between the sleeve 1 and the inner sleeve 202 within the annular cavity 203, greatly reducing the heat escape rate. The accumulated heat within the annular cavity 203 isolates the low temperature outside the damper from the sleeve 1 and the inner sleeve 202, thus providing insulation for them. Consequently, the temperatures of both the sleeve 1 and the inner sleeve 202 gradually increase, allowing the outer sleeve 201 to regulate their temperature and bring them within the optimal operating temperature range of the damping medium. This ensures the fluidity and vibration damping performance of the damper, preventing performance degradation due to low temperatures or deterioration due to high temperatures.

[0036] In one embodiment, no annular cavity 203 is provided between the outer sleeve 201 and the inner sleeve 202. The outer sleeve 201 is made of a metal material with good thermal conductivity. The sleeve 1 forms a damped sliding connection with the inner wall of the outer sleeve 201 and the outer wall of the inner sleeve 202 through a damping medium. By readjusting the parameters of the damping medium and controlling the magnitude of the damping force, the damper can reduce the vibration of the fabric treatment cylinder and dissipate heat from the damper through the outer sleeve 201.

[0037] This damper, through a multi-layered composite structure design, integrates damping, temperature regulation, and acoustic noise reduction functions. It solves problems associated with traditional dampers, such as performance degradation at high temperatures, increased viscosity at low temperatures, high operating noise, complex structure, and redundant parts. The outer sleeve 201 and annular cavity 203 facilitate heat exchange with the sleeve 1 and inner sleeve 202 at high temperatures, while simultaneously insulating the sleeve 1 and inner sleeve 202 at low temperatures. This ensures the damping medium remains within its optimal operating temperature range, achieving automatic temperature regulation and preventing failure due to decreased fluidity and vibration reduction performance. This guarantees stable vibration reduction for the fabric treatment cylinder. Furthermore, the outer sleeve 201 blocks and dissipates noise generated by the damper, resulting in quieter operation and improved user experience. Therefore, this damper achieves a comprehensive technical effect of stable vibration reduction performance, reduced overall noise, extended system lifespan, and controllable production costs.

[0038] Optionally, such as Figure 2 and Figure 3 As shown, in one implementation of this embodiment, an annular cavity 2011 is formed inside the outer sleeve 201. The annular cavity 2011 is provided with a sound-absorbing medium 2012 or a phase change material medium 2013, or the annular cavity 2011 is provided with both a sound-absorbing medium 2012 and a phase change material medium 2013. The sound-absorbing medium 2012 is configured to absorb the noise generated by the damper during operation by utilizing the properties of the sound-absorbing material. The phase change material medium 2013 is configured to adjust the temperature of the sleeve 1 by utilizing the characteristics of the phase change material, so that the damping medium is maintained within a preset operating temperature range.

[0039] In this embodiment, the outer sleeve 201 is an integrated composite temperature-changing structure. The annular cavity 2011 of the outer sleeve 201 is a sealed cavity, and both a sound-absorbing medium 2012 and a phase change material medium 2013 are disposed inside the annular cavity 2011. The characteristics of the sound-absorbing material and the phase change material medium 2013 can be utilized to simultaneously reduce noise and regulate the temperature of the sliding pair formed by the sleeve 1 and the inner sleeve rod 202. The sound-absorbing medium 2012 is a heat-conducting medium, which can improve the thermal response speed of the phase change material medium 2013. The phase change material medium 2013 reduces the temperature rise gradient of the damping medium through thermal buffering. The outer sleeve 201 has good thermal conductivity, high wear resistance, and corrosion resistance, thereby significantly improving the service life of the damper.

[0040] When the sleeve 1 and the inner sleeve rod 202 slide relative to each other and generate noise, the noise sound waves will be emitted outward to the outer sleeve 201. The outer sleeve 201 can use the sound-absorbing medium 2012 set inside the annular cavity 2011 to consume most of the sound wave energy of the noise, and reflect a small part of the remaining noise back into the annular cavity 203. This means that the energy of this small part of the remaining noise can be consumed not only during the reflection process in the annular cavity 203, but also when it comes into contact with the outer sleeve 201 again. Thus, the outer sleeve 201 not only has a noise reduction effect on the damper, but also has a certain suppression effect on the overall operating noise of the fabric processing equipment.

[0041] Preferably, the inner wall of the sleeve 1 is provided with the damping medium, and the inner wall of the outer sleeve 201 and the outer wall of the inner sleeve 202 are both... It has an anti-corrosion and wear-resistant coating. A sliding pair is formed between the sleeve 1 and the inner sleeve rod 202 so that the sleeve 1 and the inner sleeve rod 202 form a damped sliding connection. The outer wall of the sleeve 1 is spaced apart from the inner wall of the outer sleeve 201.

[0042] The phase change material medium 2013 is filled in the annular cavity 2011. The phase change material medium 2013 is disposed close to the inner peripheral sidewall 2015. When the damping medium temperature exceeds the maximum value of the preset damping medium temperature range, the phase change material medium 2013 absorbs the heat transferred by the damping medium and melts. When the damping medium temperature is lower than the minimum value of the preset damping medium temperature range, it solidifies and releases heat to the damping medium.

[0043] When the sleeve 1 and the inner sleeve rod 202 continuously generate heat due to frequent friction, the heat will be continuously transferred to the outer sleeve 201 through the connection between the outer sleeve 201 and the inner sleeve rod 202 and the annular cavity 203. The phase change material medium 2013 in the annular cavity 2011 also continuously absorbs the heat. When the temperature generated by the sleeve 1 and the inner sleeve rod 202 is higher than the upper limit of the phase change temperature of the phase change material medium 2013, the phase change material medium 2013 will melt and rapidly absorb heat, causing the temperature of the sleeve 1 and the inner sleeve rod 202 to decrease simultaneously and remain within the optimal operating temperature range of the damping medium, so as to avoid aging of the damping medium due to excessive temperature. When the sleeve 1 and the inner sleeve rod 202 are operating under low temperature conditions, if the temperature under these conditions is lower than the lower limit of the phase change temperature of the phase change material medium 2013, the phase change material medium 2013 will begin to solidify and release latent heat. The large amount of heat accumulated in the latent heat will be continuously transferred to the sleeve 1 and the inner sleeve rod 202 through the connection between the outer sleeve 201 and the inner sleeve rod 202 and the annular cavity 203, causing the temperature of the sleeve 1 and the inner sleeve rod 202 to rise simultaneously and remain within the optimal operating temperature range of the damping medium, so as to avoid excessive viscosity of the damping medium. The phase change material medium 2013 in the inner cavity can ensure that the damping medium is always within the optimal operating temperature range, so that the damping medium will not overheat and age and its viscosity is stable. This minimizes the impact of ambient temperature and operating temperature on the damper's vibration reduction performance and maximizes the damping effect of the damper on the fabric treatment cylinder.

[0044] In this embodiment, the phase change material medium 2013 is a paraffin-based composite material with a density of approximately 0.95 g / cm³, a latent heat of 2600 joules / gram, a heat storage capacity of 2470 joules / m³, and a phase change temperature of 25 degrees Celsius. The phase change material medium 2013 can control the damping medium between 25 and 55 degrees Celsius. When the damping medium temperature is below 25 degrees Celsius, the phase change material medium 2013 begins to solidify and release latent heat, transferring heat to the damping medium to prevent it from becoming too cold. When the damping medium temperature is above 55 degrees Celsius, the damping medium transfers heat to the phase change material medium 2013, at which point the phase change material medium 2013 begins to melt and absorb latent heat to prevent it from becoming too hot. When the fabric processing equipment runs for 30 minutes, the heat generation of a single damper is no more than 12 kJ. Each damper piston rod 2 has a 5 cubic centimeter phase change material medium 2013 in its outer cavity. The total heat storage of the phase change material medium 2013 is 5 cubic centimeters × 2470 joules per cubic centimeter = 12.35 kJ. Its heat exchange efficiency in the phase change process meets the daily use of the fabric processing equipment.

[0045] By integrating the sound-absorbing medium 2012 and the phase change material medium 2013 into the annular cavity 2011 of the outer sleeve 201, the structure of the damper is simplified. This allows the outer sleeve 201 to not only reduce noise in the damper but also ensure that the damping medium is always in the optimal viscosity state by adjusting the temperature of the sleeve 1 and the inner sleeve rod 202. This enables the damper to maintain good vibration reduction performance when the fabric processing cylinder is running at both low and high speeds, thus avoiding the enhanced vibration feedback caused by rigid coupling effect.

[0046] Optionally, such as Figure 2 and Figure 3 As shown, in one implementation of this embodiment, the outer sleeve 201 includes an inner peripheral sidewall 2015, an outer peripheral sidewall 2014 located on the inner peripheral sidewall 2015, and an end wall 2016 sealed between the upper and lower ends of the inner peripheral sidewall 2015 and the outer peripheral sidewall 2014. The outer peripheral sidewall 2014, the inner peripheral sidewall 2015, and the end walls 2016 at both ends together form the annular cavity 2011. The sound-absorbing medium 2012 is attached to the outer peripheral wall 2014 in a layered structure, and the phase change material medium 2013 is attached to the inner peripheral wall 2015 in a layered structure.

[0047] In this embodiment, preferably, the phase change material medium 2013 and the sound-absorbing medium 2012 are attached together on the side closest to each other, and the layer structure formed by the sound-absorbing medium and the layer structure formed by the phase change material medium are stacked together to form a composite layer structure.

[0048] There is a certain gap between the sound-absorbing medium 2012 and the inner wall of the annular cavity 2011. The phase change material medium 2013 fills these gaps, which can make full use of the gap between the sound-absorbing medium 2012 and the annular cavity 2011 to fuse the sound-absorbing medium 2012 and the phase change material medium 2013 together. This allows the phase change material medium 2013 to cover and absorb the heat radiated outward from the entire inner sleeve 202, increasing the effective area of ​​the phase change material medium 2013. There is no need for the outer sleeve 201 to set up additional space to accommodate the phase change material medium 2013, thereby improving the space utilization of the damper.

[0049] Simultaneously, the phase change material medium 2013 is filled in the gap between the sound-absorbing medium 2012 and the annular cavity 2011, which can further improve the noise reduction performance of the outer sleeve 201, improve the space utilization of the damper, and increase the effective area of ​​the phase change material medium 2013.

[0050] In this embodiment, the phase change material medium 2013 is located inside the annular cavity 2011 near the inner peripheral wall 2015. This allows the phase change material medium 2013 to exchange heat with the outer sleeve 201 immediately when the sliding pair transfers heat to the outer sleeve 201. This improves the response speed of the phase change material medium 2013 to temperature changes in the sleeve 1 and the inner sleeve rod 202, and improves the temperature regulation efficiency of the outer sleeve 201 on the damper.

[0051] The sound-absorbing medium 2012 is positioned close to the outer peripheral wall 2014. When noise waves strike the outer sleeve 201, they first pass through the phase change material medium 2013 before reaching the sound-absorbing medium 2012. Therefore, the phase change material medium 2013 becomes a physical barrier between the sound-absorbing medium 2012 and the noise source. During the process of the noise waves passing through the phase change material medium 2013 to reach the sound-absorbing medium 2012, the energy of the noise waves has already attenuated. At this time, the sound-absorbing medium 2012 will consume the attenuated noise wave energy again, thereby increasing the consumption of noise wave energy and achieving a noise reduction effect that reduces or even eliminates the noise.

[0052] By rationally positioning the phase change material medium 2013 close to the inner sleeve rod 202 and the sound-absorbing medium 2012 away from the inner sleeve rod 202, the efficiency of the outer sleeve rod 201 in regulating the damper temperature can be improved, and the energy consumption of noise waves can be increased, thereby improving the noise reduction performance of the outer sleeve rod 201.

[0053] In this embodiment, the annular cavity 2011 is designed as an annular cavity surrounding the peripheral wall of the outer sleeve 201. The shape of the sound-absorbing medium 2012 is adapted to the annular cavity 2011, and the phase change material medium 2013 fills the portion of the annular cavity 2011 excluding the sound-absorbing medium 2012. The annular cavity 2011 is an annular cavity extending circumferentially along the outer sleeve 201, and the sound-absorbing medium 2012 is a cylindrical shape adapted to the annular cavity. This allows the sound-absorbing medium 2012 to fully cover the peripheral surfaces of the sleeve 1 and the inner sleeve rod 202, maximizing the contact area between the sound-absorbing medium 2012 and noise. This ensures that the sound wave energy of noise incident on the outer sleeve from any angle can be consumed by the sound-absorbing medium 2012, thereby further improving the noise reduction performance of the outer sleeve 201.

[0054] In one embodiment, the outer sleeve 201 and the inner sleeve 202 can be an integral structure. This integral structure can be assembled and then welded, integrating the functions of the sound-absorbing medium 2012 and the phase change material medium 2013 into the annular cavity 2011 of the outer sleeve 201. Depending on the application scenario, the sound-absorbing medium 2012 and the phase change material medium 2013 with the highest adaptability are selected, which does not occupy more space compared with traditional dampers.

[0055] By extending the sound-absorbing medium 2012 along the circumference of the outer sleeve 201 and fully covering the circumference of the sleeve 1 and the inner sleeve 202.

[0056] Optionally, such as Figure 4 As shown, in one implementation of this embodiment, the sound-absorbing medium 2012 is provided with a plurality of sound-absorbing holes on the side away from the outer peripheral wall 2014. Each sound-absorbing hole forms a stepped hole structure with a gradually decreasing diameter along the axis of the sound-absorbing hole, and the further away from the outer peripheral wall 2014 the stepped hole structure is, the larger the hole diameter.

[0057] In this embodiment, sound-absorbing holes are provided at intervals on the sound-absorbing medium 2012. The sound-absorbing holes include an outer hole 301 and an inner hole 302. The inner hole 302 is located on the inner bottom wall of the outer hole 301 and forms a stepped hole with the outer hole 301.

[0058] In this embodiment, an inner hole 302 is also formed on the bottom wall of the outer hole 301 on the sound-absorbing medium 2012. The diameter of the inner hole 302 is smaller than that of the outer hole 301. Therefore, the outer hole 301 and the inner hole 302 together form a sound-absorbing hole on the sound-absorbing medium 2012. The sound-absorbing medium 2012 can be made of various sound-absorbing materials. In this embodiment, the sound-absorbing medium 2012 is made of polyurethane foam. In the sound-absorbing hole, the outer hole 301 is located near the inner sleeve rod 202, and the opening of the outer hole 301 faces the inner sleeve rod 202. The inner hole 302 is located away from the inner sleeve rod 202. Multiple sound-absorbing holes are evenly distributed on the sound-absorbing medium 2012 to form a stepped porous periodic structure.

[0059] Preferably, the plurality of sound-absorbing holes are arranged in a honeycomb array. Adjustable parameters of the sound-absorbing medium 2012 include the wall thickness of the sound-absorbing medium 2012, the pore diameters of the outer holes 301 and the inner holes 302, and the distribution position of the sound-absorbing holes. For example, to broaden the sound absorption bandwidth, the plurality of sound-absorbing holes can be arranged in a honeycomb pattern on the sound-absorbing medium 2012, with sound-absorbing holes of different diameters distributed from top to bottom on the sound-absorbing medium 2012; alternatively, the inner holes 302 can be configured as through holes, making the sound-absorbing holes a through-hole structure, thereby improving the sound absorption efficiency of the sound-absorbing medium 2012 while also increasing the heat dissipation area of ​​the sound-absorbing medium 2012.

[0060] The sound absorption principle of the sound-absorbing medium 2012 is as follows: when noise waves vibrate inside the sound-absorbing holes, they rub against the walls of the holes. During this process, the noise wave energy is converted into heat energy, thus dissipating the noise wave energy. When the fabric processing cylinder rotates at high speed, the speed and frequency of the damper's extension and retraction are both relatively fast. At this time, the damping medium is subjected to severe shearing between the sleeve 1 and the inner sleeve rod 202. The aerodynamic noise generated during this process becomes the main noise source, far exceeding the frictional noise and structural resonance noise inside the damper. Therefore, the sound-absorbing medium 2012 is mainly designed with a high porosity structure to absorb high-frequency noise around 2000 Hz.

[0061] In one embodiment, the sound-absorbing medium 2012 has a wall thickness of 1 mm, an outer hole 301 with a radius of 1.5 mm, an inner hole 302 with a radius of 0.5 mm, and a porosity of 85% or greater.

[0062] By evenly distributing multiple sound-absorbing holes on the sound-absorbing medium 2012, the sound-absorbing medium 2012 forms a stepped porous periodic structure, which can effectively absorb the mechanical noise generated by the damper's swinging and stretching movements during operation, thereby significantly reducing the overall noise level of the fabric processing equipment and improving user comfort.

[0063] Optionally, such as Figure 1 As shown, in one implementation of this embodiment, the end wall 2016 is detachably and fixedly connected to the ends of the inner peripheral sidewall 2015 and the outer peripheral sidewall 2014.

[0064] In this embodiment, the end wall 2016 can be connected as a sealing member. While the sealing member is fixedly connected to the inner sleeve 202, it is also detachably connected to the outer sleeve 201, forming a split-type connection structure for the damper. The sealing member is made of a metal material with good thermal conductivity. The opening of the annular cavity 2011 of the outer sleeve 201 is located at the end of the outer sleeve 201 away from the sleeve 1. The sealing member and the opening of the annular cavity 2011 are detachably connected, allowing the annular cavity 2011 to be closed or opened.

[0065] When the sealing component closes the annular cavity 2011, it prevents impurities from entering the annular cavity 2011, thereby protecting the sound-absorbing medium 2012 and the phase change material medium 2013 inside the annular cavity 2011. This ensures that both the sound-absorbing medium 2012 and the phase change material medium 2013 can stably perform their respective functions, improving the operational reliability of the damper. When the sealing component opens the annular cavity 2011, personnel can independently maintain, replace, or upgrade the sound-absorbing medium 2012 and the phase change material medium 2013. Users can choose to replace specific components inside the annular cavity 2011 according to actual needs without replacing the entire damper, significantly improving the economy and sustainability of the fabric processing equipment. This design also allows the use of only this one model of damper to achieve the effect of being applicable to different brands and models of fabric processing equipment, thus giving the damper good versatility and expandability.

[0066] The outer sleeve 201 and the inner sleeve 202 are connected by a sealing component. The good thermal conductivity of the sealing component can be used to improve the heat exchange efficiency between the outer sleeve 201, the sleeve 1, and the inner sleeve 202. This further improves the response speed of the phase change material medium 2013 to temperature changes in the sleeve 1 and the inner sleeve 202, thereby further improving the temperature regulation efficiency of the outer sleeve 201 on the damper.

[0067] By connecting the inner sleeve 202 and the outer sleeve 201 with a sealing component, and by sealing the annular cavity 2011 in a detachable manner with the sealing component, the operating reliability of the damper can be improved, the adaptability of the damper can be improved, and the production cost can be reduced. It can also further improve the temperature regulation efficiency of the outer sleeve 201 on the damper.

[0068] Optionally, in one implementation of this embodiment, the damper includes a temperature control component, which is disposed on the outer sleeve 201. The temperature control component includes a first temperature sensing element and a temperature regulating element. The temperature control component is configured such that when the temperature of the outer sleeve 201 detected by the first temperature sensing element does not meet the preset temperature range, the temperature regulating component is controlled to operate to reduce or increase the temperature of the outer sleeve 201 to the preset temperature range.

[0069] The damper can be equipped with a temperature control component on the basis that the outer sleeve 201 has a phase change material medium 2013, or it can be equipped with only a temperature control component on the basis that the outer sleeve 201 does not have a phase change material medium 2013.

[0070] In this embodiment, the temperature control component is installed on the outer sleeve 201, which has a phase change material medium 2013. When the damper frequently expands and contracts under the force of the high-speed rotation of the fabric processing cylinder, the sleeve 1 and the inner sleeve rod 202 continuously generate heat and transfer the heat to the outer sleeve 201. During this process, the first temperature sensing element continuously detects the temperature of the outer sleeve 201. As the damper continues to work, the heat generated by the sleeve 1 and the inner sleeve rod 202 increases. When the heat exceeds the upper limit of the preset temperature range, the first temperature sensing element will trigger the controller through an electrical connection. After the controller is triggered, it will control the temperature regulating component to work according to the real-time temperature of the outer sleeve 201. The temperature regulating component starts to cool the outer sleeve 201 and, through heat exchange between the outer sleeve 201 and the sliding pair, the temperature of the sleeve 1 and the inner sleeve rod 202 also drops to the preset temperature range, thereby ensuring that the damping medium can always be within the optimal working temperature range. When the damper operates at low temperatures, the low temperature is continuously transferred from the outer sleeve 201 to the sleeve 1 and the inner sleeve 202. During this process, the first temperature sensing element continuously detects the temperature of the outer sleeve 201. As the damper continues to operate, the temperature on the sleeve 1 and the inner sleeve 202 decreases. When the temperature of the sliding pair exceeds the lower limit of the preset temperature range, the first temperature sensing element will trigger the controller via electrical connection. After being triggered, the controller will control the temperature regulating element to operate based on the real-time temperature of the outer sleeve 201. The temperature regulating element will start to heat up the outer sleeve 201 and, through heat exchange between the outer sleeve 201 and the sliding pair, raise the temperature of the sleeve 1 and the inner sleeve 202 to the preset temperature range, thereby ensuring that the damping medium is always within the optimal operating temperature range.

[0071] In one embodiment, the temperature regulating component is a miniature thermoelectric cooling fin integrated on the outer wall of the damper, the first temperature sensing component is an NTC temperature sensor, and the controller is an intelligent controller. By actively cooling or heating the damper, a dual-insurance temperature control system of "passive phase change + active regulation" is formed. Specifically, the structure can be designed such that a miniature thermoelectric cooling fin is integrated on the outer wall of the outer sleeve 201, and in conjunction with the NTC temperature sensor and intelligent controller, real-time monitoring and dynamic control of the damping medium temperature are achieved. This temperature control system, through a closed-loop feedback mechanism, immediately activates the active temperature control strategy when an abnormal temperature is detected, ensuring that the damping medium is always within the optimal operating temperature range. Compared to the passive temperature control method that relies solely on the phase change material medium 2013, it has advantages such as faster response speed, higher temperature control accuracy, and stronger adaptability, significantly improving the operating stability of the damper under complex working conditions.

[0072] By incorporating a temperature control component, the damper can actively and dynamically adjust the temperature of the sliding pair according to the operating status of different fabric processing equipment and various environmental conditions. This ensures the damper's performance remains stable under various operating conditions, reducing the impact of ambient temperature and operating heat load on the damper's vibration reduction effect. The phase change material medium 2013, in conjunction with the temperature control component, regulates the damper's temperature, providing passive temperature control, active temperature control, and a combination of both for the fabric processing equipment. This ensures the damping medium remains within its optimal operating temperature range under various complex conditions, further improving the damper's stable vibration reduction effect on the fabric processing cylinder. By integrating all components onto the outer sleeve 201, damping, sound absorption, and temperature control functions are all integrated into a single damper, eliminating the need for additional external components and simplifying the internal structure of the fabric processing equipment.

[0073] Optionally, in one implementation of this embodiment, the damper includes a noise reduction component, which includes a sound sensor and a sound wave transmitter; The noise reduction component is configured such that, based on the noise signal of the damper obtained by the sound sensor, the sound wave transmitter is controlled to emit a reverse sound wave to suppress the noise of the damper.

[0074] The damper can be equipped with a noise reduction component on the basis that the outer sleeve 201 has a sound-absorbing medium 2012, or it can be equipped with only a noise reduction component on the basis that the outer sleeve 201 does not have a sound-absorbing medium 2012.

[0075] In this embodiment, the noise reduction component is mounted on the damper based on the sound-absorbing medium 2012 on the outer sleeve 201. When the damper reciprocates under the force of the fabric treatment cylinder, it generates mid-to-high frequency sliding noise and emits it outward. During this process, the sound sensor continuously detects the noise generated by the damper. When the sound sensor detects the mid-to-high frequency noise emitted by the damper during operation, it sends the noise signal to the controller simultaneously with the controller trigger. Subsequently, the controller controls the sound wave transmitter to operate based on the noise signal, causing the sound wave transmitter to emit a reverse sound wave in the direction of the noise source. This reverse sound wave is out of phase with the noise signal. When the noise signal changes, the reverse sound wave emitted by the sound wave transmitter also changes accordingly, ensuring that the reverse sound wave always remains out of phase with the noise sound wave. This maximizes the energy dissipation of the noise sound wave, causing the noise to attenuate or even disappear, thereby achieving dynamic interference and active noise dissipation.

[0076] In one embodiment, the noise reduction component is an ANC (Active Noise Cancellation) module. The ANC module achieves precise cancellation of low-frequency noise through noise acquisition, signal analysis, and reverse wave generation and emission. Since the sound-absorbing medium 2012 is typically designed for mid-to-high frequency noise, while the ANC module primarily targets low-frequency noise, this module can be installed near the damper, such as at the bottom of the outer sleeve 201, to process the low-frequency noise generated by the damper. The ANC module and the existing porous sound-absorbing medium 2012 form a complementary noise reduction mechanism, effectively solving the problem of insufficient noise reduction capability of traditional sound-absorbing materials in the low-frequency range. Experiments show that this solution can reduce the low-frequency noise generated by the fabric processing equipment during the high-speed dehydration stage by approximately 5-10 dB(A), significantly improving the overall quietness and user comfort of the machine.

[0077] By incorporating noise reduction components, the damper can actively and dynamically adjust the noise it generates during operation. The sound-absorbing medium 2012 works in conjunction with the noise reduction components to reduce noise in the damper, enabling the damper to possess multiple noise reduction functions, including active noise reduction, passive noise reduction, and a combination of both. This allows it to specifically absorb the sliding noise of the damper in the mid-to-high frequency range, significantly improving the user's auditory experience and enabling the damper to achieve good noise reduction effects when facing various complex noises.

[0078] Optionally, in one implementation of this embodiment, the damper includes a second temperature sensing element disposed on the piston rod 2. The second temperature sensing element is configured to acquire the temperature signal of the damping medium to determine whether the phase change material medium 2013 is malfunctioning.

[0079] In this embodiment, the second temperature sensing element is located on the piston rod 2, and the piston rod 2 can efficiently exchange heat with the damping medium. Therefore, the temperature signal of the piston rod 2 obtained by the second temperature sensing element can be used as the temperature signal of the damping medium.

[0080] When the second temperature sensor transmits the temperature signal of the damping medium to the controller, the controller compares this temperature signal with the optimal operating temperature range of the damping medium and determines whether to issue a warning signal to remind the user to replace the phase change material medium 2013 based on the comparison result, as follows: When the temperature signal of the damping medium obtained by the second temperature sensor is higher than the upper limit of the optimal operating temperature range of the damping medium, or when the temperature signal of the damping medium obtained by the second temperature sensor is lower than the lower limit of the optimal operating temperature range of the damping medium, if the temperature signal does not recover to the optimal operating temperature range within a certain period of time, it indicates that the phase change material medium 2013 has failed, and the controller will issue a prompt signal to remind the user to replace the phase change material medium 2013. If the temperature signal recovers to the optimal operating temperature range within a certain period of time, it indicates that the phase change material medium 2013 is effectively regulating the temperature of the damper, and the controller will not issue a prompt signal.

[0081] By acquiring the temperature signal of the damping medium and monitoring its changes over a period of time, it is possible to determine whether the phase change material medium 2013 has failed. A prompt signal is then sent to the user to remind them to replace the phase change material medium 2013 in a timely manner. This allows the damper to notify the user immediately after the phase change material medium 2013 fails, eliminating the need for the user to perform regular proactive checks on the damper. This improves the convenience of the damper during maintenance and further enhances the user experience.

[0082] Example 2 This embodiment provides a fabric processing device, which includes a housing, an outer cylinder 5, and the damper described in Embodiment 1. The outer cylinder 5 is disposed inside the housing, and one end of the sleeve 1 located outside the annular cavity 203 is hinged to the outer cylinder 5. The bottom end of the outer rod sleeve 201 is hinged to the base 6, and the base 6 is fixedly connected to the inner wall of the housing. The damper is configured to adjust the temperature of the damping medium in real time according to the operating status of the fabric processing equipment.

[0083] In this embodiment, two dampers are respectively provided on both sides of the outer cylinder 5. The sleeve 1 is hinged to the outer cylinder 5 through a pin, and the outer rod sleeve 201 is hinged to the base 6 through a pin. The relative movement between the sleeve 1 and the inner rod sleeve 202 of the damper can dissipate the axial vibration energy applied to the damper by the fabric treatment cylinder, while the hinge points between the sleeve 1 and the outer cylinder 5 and between the outer rod sleeve 201 and the base 6 can dissipate the radial vibration energy and shear vibration energy applied to the damper by the fabric treatment cylinder. This ensures that the sleeve 1 and the inner rod sleeve 202 of the damper can always maintain coaxial relative movement, thereby ensuring the stability and reliability of the damper during the vibration reduction process.

[0084] Since the fabric processing equipment in this embodiment includes a damper as in Embodiment 1, the fabric processing equipment in this embodiment also possesses all the technical effects of the damper in Embodiment 1, which will not be elaborated here.

[0085] Example 3 This embodiment provides a control method for controlling the fabric processing equipment in Embodiment 2, the steps of which include: During the operation of the fabric processing equipment, the temperature of the damping medium in the damper is obtained. When the temperature of the damping medium is higher than the maximum value of the preset temperature range, the rotation frequency of the motor of the fabric processing equipment is reduced to keep the temperature of the damping medium within the preset temperature range.

[0086] Furthermore, the control method also includes: if the temperature of the damping medium does not recover to the preset temperature range within a preset time period, then controlling the fabric processing equipment to issue a warning message.

[0087] In this embodiment, when the fabric processing equipment is running, the controller begins to execute the control method, as follows: The temperature sensor located on piston rod 2 continuously acquires the temperature signal of the damping medium and compares it with a preset temperature range. When the temperature signal exceeds the upper limit of the preset temperature range, it indicates that the damping medium is overheated and the damper needs to be cooled down. The controller then controls the motor of the fabric processing equipment to reduce its rotation frequency to reduce the vibration of the fabric processing cylinder, thereby reducing the extension and contraction frequency of the damper and reducing the heat generated by the damper. If, after the controller has controlled the motor of the fabric processing equipment to rotate at a low frequency for a preset period of time, the temperature signal of the damping medium acquired in real time by the temperature sensor still has not returned to the preset temperature range, it indicates that the phase change material medium 2013 has failed. At this time, the controller controls the fabric processing equipment to issue a prompt signal to replace the phase change material medium 2013, reminding the user to replace it with a new one.

[0088] In one embodiment, an intelligent learning algorithm can also be incorporated into the control method to optimize the control parameters of the damper. The control system collects user data, such as washing frequency, temperature setting, and spin-drying time, and then analyzes historical data using a machine learning model to adaptively adjust the damper's operating mode. For example, when the control system detects that the user is frequently using the high-temperature washing mode, it will proactively reduce the motor's spin-drying speed to prevent the damper from failing due to overheating.

[0089] By linking the temperature control component with the rotational speed of the fabric processing equipment motor, this control method can dynamically adjust the temperature of the damper at the current rotational speed of the fabric processing equipment motor, thereby enabling the temperature control component and the fabric processing equipment motor to work together to improve operating efficiency. Since the control method in this embodiment includes the fabric processing equipment as in Embodiment 2, it also possesses all the technical effects of the fabric processing equipment in Embodiment 2, and will not be elaborated upon here.

[0090] In summary, the ingenious design of the damper lies in: Firstly, this damper integrates damping, temperature regulation, and acoustic noise reduction functions through a multi-layered composite structure design. This solves the problems of traditional dampers, such as performance degradation at high temperatures, increased viscosity at low temperatures, high operating noise, complex structure, and redundant parts. The outer sleeve and annular cavity facilitate heat exchange with the sleeve and inner sleeve rod at high temperatures and provide insulation for the sleeve and inner sleeve rod at low temperatures, ensuring the damping medium remains within its optimal operating temperature range. This achieves automatic temperature regulation, preventing failure due to decreased fluidity and vibration reduction performance, and guaranteeing stable vibration reduction for the fabric treatment cylinder. Furthermore, the outer sleeve blocks and dissipates noise generated by the damper, making it quieter during operation and improving the user experience. Therefore, this damper achieves a comprehensive technical effect of stable vibration reduction performance, reduced overall noise, extended system lifespan, and controllable production costs.

[0091] Secondly, by integrating the sound-absorbing medium and the phase change material medium into the cavity of the outer sleeve, the structure of the damper is simplified. This allows the outer sleeve to not only reduce noise in the damper but also ensure that the damping medium is always in the optimal viscosity state by adjusting the temperature of the sleeve and the inner sleeve rod. This enables the damper to maintain good vibration reduction performance when the fabric treatment cylinder is running at both low and high speeds, thus avoiding the enhanced vibration feedback caused by rigid coupling effect.

[0092] Third, by extending the sound-absorbing medium along the circumference of the outer sleeve and fully covering the circumference of the sleeve and the inner sleeve rod, while filling the gap between the sound-absorbing medium and the cavity with the phase change material medium, the noise reduction performance of the outer sleeve can be further improved, the space utilization of the damper can be increased, and the effective area of ​​the phase change material medium can be increased.

[0093] Fourth, by using a sealing component to connect the inner sleeve and the outer sleeve, and by making the sealing component removable to seal the cavity, the operating reliability of the damper can be improved, the adaptability of the damper can be improved, and the production cost can be reduced. It can also further improve the temperature regulation efficiency of the outer sleeve on the damper.

[0094] Fifth, by incorporating a temperature control component, the damper can actively and dynamically adjust the temperature of the sliding pair according to the operating status of different fabric processing equipment and varying environmental conditions. This ensures the damper's performance remains stable under various operating conditions, reducing the impact of ambient temperature and operating heat load on the damper's vibration reduction effect. By combining the phase change material medium with the temperature control component to regulate the damper's temperature, multiple temperature control methods—passive, active, and a combination of both—are provided for the fabric processing equipment. This ensures the damping medium remains within its optimal operating temperature range under various complex conditions, further improving the damper's stable vibration reduction effect on the fabric processing cylinder. By integrating all components onto the outer sleeve, damping, sound absorption, and temperature control functions are all integrated into a single damper, eliminating the need for additional external components and simplifying the internal structure of the fabric processing equipment.

[0095] Sixth, by setting up noise reduction components, the damper can actively and dynamically adjust the noise it generates during operation. By using sound-absorbing media in conjunction with noise reduction components to reduce noise in the damper, the damper can have multiple noise reduction functions, including active noise reduction, passive noise reduction, and a combination of both. This allows it to specifically absorb the sliding noise of the damper in the mid-to-high frequency range, significantly improving the user's auditory experience and enabling the damper to achieve good noise reduction effects when facing various complex noises.

[0096] Seventh, by acquiring the temperature signal of the damping medium and monitoring its changes over a period of time, it is possible to determine whether the phase change material medium has failed. By issuing a prompt signal to the user, the user is reminded to replace the phase change material medium in a timely manner. This allows the damper to notify the user immediately after the phase change material medium fails, eliminating the need for the user to conduct regular proactive checks on the damper. This improves the convenience of the damper during maintenance and further enhances the user experience.

[0097] It can be further understood that in this disclosure, "many" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0098] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0099] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0100] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0101] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A damper, characterized in that, include: Sleeve (1); The piston rod (2) includes an outer rod sleeve (201) and an inner rod sleeve (202). An annular cavity (203) is formed between the outer rod sleeve (201) and the inner rod sleeve (202). The sleeve (1) is slidably fitted inside the annular cavity (203). The inner wall of the sleeve (1) and the outer wall of the inner sleeve (202) are filled with a damping medium, and / or the outer wall of the sleeve (1) and the inner wall of the outer sleeve (201) are filled with a damping medium.

2. The damper according to claim 1, characterized in that, The outer sleeve (201) has an annular cavity (2011) formed inside its wall, and the annular cavity (2011) is provided with a sound-absorbing medium (2012) and / or a phase change material medium (2013). The sound-absorbing medium (2012) is configured to absorb the noise generated by the damper during operation by utilizing the properties of the sound-absorbing material; The phase change material medium (2013) is configured to adjust the temperature of the damper by utilizing the phase change material properties, so that the damping medium is maintained within a preset operating temperature range.

3. The damper according to claim 2, characterized in that, The outer sleeve (201) includes an inner peripheral sidewall (2015), an outer peripheral sidewall (2014) located on the inner peripheral sidewall (2015), and an end wall (2016) sealed between the upper and lower ends of the inner peripheral sidewall (2015) and the outer peripheral sidewall (2014). The outer peripheral sidewall (2014), the inner peripheral sidewall (2015), and the end walls (2016) at both ends together form the annular cavity (2011). The sound-absorbing medium (2012) is attached to the outer peripheral wall (2014) in a layered structure, and the phase change material medium (2013) is attached to the inner peripheral wall (2015) in a layered structure.

4. The damper according to claim 3, characterized in that, The sound-absorbing medium (2012) has a plurality of sound-absorbing holes on the side away from the outer peripheral wall (2014). Each sound-absorbing hole forms a stepped hole structure with a gradually decreasing diameter along the axis of the sound-absorbing hole, and the further away from the outer peripheral wall (2014) the stepped hole structure is, the larger the hole diameter is.

5. The damper according to claim 4, characterized in that, The multiple sound-absorbing holes are arranged in a honeycomb array.

6. The damper according to claim 3, characterized in that, The end wall (2016) is detachably and fixedly connected to the ends of the inner peripheral side wall (2015) and the outer peripheral side wall (2014).

7. The damper according to claim 1, characterized in that, The inner wall of the sleeve (1) is provided with the damping medium, and the inner wall of the outer sleeve (201) and the outer wall of the inner sleeve (202) are both provided with anti-corrosion and wear-resistant coatings. A sliding pair is formed between the sleeve (1) and the inner sleeve (202) so that the sleeve (1) and the inner sleeve (202) form a damped sliding connection. The outer wall of the sleeve (1) and the inner wall of the outer sleeve (201) are spaced apart.

8. The damper according to any one of claims 1-7, characterized in that, include: A temperature control component is disposed on the outer sleeve (201), and the temperature control component includes: a first temperature sensing element and a temperature regulating element; The temperature control component is configured such that when the temperature of the outer sleeve (201) obtained by the first temperature sensing element is not within the preset temperature range, the temperature regulating component is controlled to operate to reduce or increase the temperature of the outer sleeve (201) to the preset temperature range.

9. The damper according to any one of claims 2-6, characterized in that, include: The second temperature sensing element is disposed on the piston rod (2). The second temperature sensing element is used to obtain the temperature information of the damping medium in order to determine whether the phase change material medium (2013) is malfunctioning.

10. The damper according to any one of claims 1-7, characterized in that, include: A noise reduction component, the noise reduction component comprising: a sound sensor and a sound wave transmitter; The noise reduction component is configured such that, based on the noise signal of the damper obtained by the sound sensor, the sound wave transmitter is controlled to emit a reverse sound wave to suppress the noise of the damper.

11. A fabric treatment device, characterized in that, include: The damper as described in any one of claims 1-10; The box body and the outer cylinder (5) are disposed inside the box body; The sleeve (1) is hinged to the outer cylinder (5) at one end outside the annular cavity (203), the bottom end of the outer rod sleeve (201) is hinged to the base (6), and the base (6) is fixedly connected to the inner wall of the box. The damper is configured to adjust the temperature of the damping medium in real time according to the operating status of the fabric processing equipment.

12. A control method for the fabric processing equipment as described in claim 11, characterized in that: During the operation of the fabric processing equipment, the temperature of the damping medium in the damper is obtained. When the temperature of the damping medium is higher than the maximum value of the preset temperature range, the rotation frequency of the motor of the fabric processing equipment is reduced to keep the temperature of the damping medium within the preset temperature range.

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