Automatic uncovering device and dyeing machine

Abstract

The automatic uncovering device comprises a cylinder body and a cylinder cover, a plurality of first protruding blocks are distributed on the outer periphery of the cylinder cover in a circumferential array mode, a positioning groove is formed in an opening of the cylinder body, and a plurality of second protruding blocks correspondingly clamped and matched with the first protruding blocks are arranged above the positioning groove. The side wall of the cylinder body is provided with a supporting seat and a first rotating shaft rotationally installed on the supporting seat, the outer wall of the first rotating shaft is fixedly connected with a turnover plate, the turnover plate is rotationally connected with the middle of the cylinder cover, and the supporting seat is provided with a first driving device used for driving the turnover plate to rotate around the first rotating shaft so as to open or close the cylinder cover; a rack part is arranged on the edge of the cylinder cover and connected with a gear in a meshed mode, and the overturning plate is provided with a second driving device used for driving the gear to rotate so as to lock or unlock the cylinder cover. In addition, the invention further provides a dyeing machine comprising the automatic uncovering device. The cylinder cover can be automatically opened and closed in cooperation with the dyeing procedure, the cylinder cover opening and closing action is more stable, and safety, reliability and high efficiency are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of lid opening, in particular to an automatic lid opening device and a dyeing machine. Background Art

[0002] As one of the textile dyeing and finishing equipment, the dyeing machine generally consists of a cylinder body and a cylinder cover that are locked together. When working, high-temperature steam is heated and convectively radiated into the interior of the cylinder body through the heat exchange coil, thereby keeping the interior of the cylinder body at a high temperature. The vapor pressure and air pressure generated by the heating of the liquid itself generate high pressure, achieving the effect of high-speed printing and dyeing.

[0003] At present, the cylinder cover of the existing dyeing machine generally adopts a staggered protrusion structure to achieve a locking connection with the cylinder body. Through manual operation, the cylinder cover is rotated around its center at a certain angle to achieve locking or unlocking, and the cylinder cover is flipped in the vertical plane direction to complete opening or closing. Since the opening and closing of the cylinder cover is completed manually, it is easy to open the cover when the pressure and temperature do not reach the safe value, which poses a safety risk. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic cover opening device and a dyeing machine, which can automatically open and close the cylinder cover in conjunction with the dyeing process, and make the opening and closing of the cylinder cover smoother, safer, more reliable and more efficient, and well solve the safety and operation inconvenience problems of the existing manual operation method of opening and closing the cylinder cover.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides an automatic cover opening device, comprising a cylinder body and a cylinder cover, the cylinder cover being arranged at the opening of the cylinder body, the outer periphery of the cylinder cover being provided with a plurality of first protrusions distributed in a circumferential array, the opening of the cylinder body being provided with an annularly distributed positioning groove, and above the positioning groove being provided with a plurality of second protrusions corresponding to the first protrusions, the side wall of the cylinder body being provided with a support seat and a first rotating shaft rotatably mounted on the support seat, the outer wall of the first rotating shaft being fixedly connected with a flip plate, the end of the flip plate close to the cylinder body being rotatably connected with the middle part of the cylinder cover, the support seat being provided with a first driving device for driving the flip plate to rotate around the first rotating shaft to open or close the cylinder cover; the edge of the cylinder cover being provided with a rack portion, the rack portion being meshed with a gear, and the flip plate being provided with a second driving device for driving the gear to rotate to lock or unlock the cylinder cover.

[0007] Furthermore, the edge of the cylinder cover is provided with a limit baffle protruding and extending toward the outer side wall of the cylinder body, and the cylinder body is provided with a locking device for locking the limit baffle.

[0008] Furthermore, the locking device includes an axle seat vertically fixed on the outer wall of the cylinder body, a second rotating shaft rotatably connected to the axle seat, a locking plate connected to the upper end of the second rotating shaft, and a handle connected to the locking plate. The limit baffle is provided with a recessed portion at one end close to the locking plate, and the side wall of the lock plate is provided with a pressing portion for abutting against the recessed portion and an avoidance gap for the limit baffle to pass smoothly.

[0009] Furthermore, a proximity switch, a latch and a first telescopic cylinder for driving the latch to move up and down are provided below the lock plate, and the lock plate is provided with a socket corresponding to the latch and a positioning portion corresponding to the proximity switch.

[0010] Furthermore, a first limiting block corresponding to when the cylinder cover is locked into place and a second limiting block corresponding to when the cylinder cover is unlocked into place are provided on the top of the cylinder body, and the first limiting block and the second limiting block are respectively located on both sides of the limiting baffle.

[0011] Furthermore, a pressure relief valve communicating with the interior of the cylinder body is provided on the side wall of the cylinder body, and the pressure relief valve is connected to a third driving device for driving a valve core of the pressure relief valve to rotate open or close.

[0012] Furthermore, the first driving device, the second driving device, and the third driving device are rotation driving devices, and the rotation driving device includes any one of a swing cylinder, a pneumatic motor, and an electric motor.

[0013] Furthermore, a balance weight is provided at one end of the flip plate away from the cylinder cover, and the support seat is provided with a buffer pad for abutting against the flip plate when the cylinder cover is opened.

[0014] In a second aspect, the present invention further provides a dyeing machine comprising the above-mentioned automatic cover opening device.

[0015] Furthermore, a vertically distributed hollow shaft is fixed to the middle part of the cylinder cover, and the outer periphery of the hollow shaft is rotatably connected to the flip plate; the hollow shaft is provided with a yarn pressing device, and the yarn pressing device includes a driving rod, a clamping cover and a second telescopic cylinder, the driving rod is slidably connected to the hollow shaft, the lower end of the driving rod extends into the inner cavity of the cylinder body and is connected to the clamping cover, and the upper end of the driving rod is connected to the telescopic end of the second telescopic cylinder.

[0016] Compared with the prior art, the present invention provides an automatic lid opening device and a dyeing machine, which have the following beneficial effects:

[0017] The cylinder cover of the present invention can utilize a staggered protrusion structure to achieve a rotational locking connection with the opening of the cylinder body. By integrating the locking cover structure for locking or unlocking the cylinder cover and the opening cover structure for opening or closing the cylinder cover on a flip plate rotatably connected to the cylinder body, the rotation and flipping actions of the cylinder cover can be concentrated on the flip plate, greatly simplifying the equipment structure, and facilitating the automatic opening and closing of the cylinder cover, ensuring that the cylinder cover moves along a predetermined trajectory during the opening and closing process, avoiding deviation or jamming, and ensuring the safety of operators and equipment; at the same time, the present invention adopts a gear and an arc-shaped rack portion for meshing transmission, which can make the locking and unlocking actions of the cylinder cover smoother, safer, more reliable and more efficient than directly using a telescopic cylinder to use a linear drive method to complete the opening and closing of the cylinder cover.

[0018] The present invention can be used to improve the efficiency of automated production, replace manual opening of lids, reduce operation time, and be suitable for continuous production. It has a novel structure and can achieve seamless connection of "dyeing-opening-unloading" by linking with the dyeing program, thereby improving equipment utilization and improving dyeing uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention when the cylinder cover is closed and locked;

[0021] Figure 2 It is a schematic top view of the structure of the present invention when the cylinder cover is closed and locked;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0023] Figure 4 This is a schematic diagram of the locking device being installed on the cylinder body;

[0024] Figure 5 This is a schematic diagram of the assembly of the locking device and the cylinder body;

[0025] Figure 6 This is a schematic diagram of the assembly of the cylinder cover, yarn pressing device and turning plate;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the present invention when the cylinder cover is unlocked and opened.

[0027] Figure numerals: 1, cylinder body; 11, positioning groove; 12, second protrusion; 13, support seat; 131, buffer pad; 132, ear plate; 133, bearing; 14, first limit block; 15, second limit block; 16, pressure relief valve; 17, third driving device; 2, cylinder head; 21, first protrusion; 22, rack portion; 23, limit baffle; 231, recessed portion; 24, hollow shaft; 3, flip plate; 31, first rotating shaft; 32, counterweight; 4, first driving device; 5, gear ;6. Second driving device;7. Locking device;71. Shaft seat;711. Limit opening;72. Second rotating shaft;721. Limit column;73. Lock plate;731. Pressing part;732. Avoidance gap;733. Insertion hole;734. Positioning part;74. Handle;75. Proximity switch;76. Latch;77. First telescopic cylinder;8. Yarn pressing device;81. Driving rod;82. Pressing cover;83. Second telescopic cylinder;9. Sealing device;91. Sealing ring;92. Pressing cover. DETAILED DESCRIPTION

[0028] The technical solutions of the present invention are described clearly and completely below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations 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 should not be understood as limiting the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The present invention will be further described in detail below through detailed embodiments in conjunction with the accompanying drawings.

[0034] Example 1

[0035] Please refer to Figures 1 to 7The present embodiment provides an automatic cover opening device, comprising a cylindrical cylinder body 1 and a circular cylinder cover 2, wherein the cylinder cover 2 is arranged to cover the opening of the cylinder body 1, and a plurality of first protrusions 21 are distributed in a circumferential array on the outer periphery of the cylinder cover 2, and a ring-shaped positioning groove 11 is provided at the opening of the cylinder body 1, and a plurality of second protrusions 12 corresponding to the first protrusions 21 are provided above the positioning groove 11. In this way, the cylinder cover can use the staggered protrusion structure as a quick-opening door structure to realize a rotational locking connection with the opening of the cylinder body. The side wall of the cylinder body 1 is provided with a support seat 13 and a first rotating shaft 31 rotatably mounted on the support seat 13, the outer wall of the first rotating shaft 31 is fixedly connected to a flip plate 3, and the flip plate 3 is rotatably connected to the middle part of the cylinder cover 2 at one end close to the cylinder body 1, and the support seat 13 is provided with a first driving device 4 for driving the flip plate 3 to rotate around the first rotating shaft 31 to open or close the cylinder cover 2; the edge of the cylinder cover 2 is provided with a rack portion 22 in a circular arc shape, and the rack portion 22 is meshed with a gear 5, and the flip plate 3 is provided with a second driving device 6 for driving the gear 5 to rotate to lock or unlock the cylinder cover 2. By integrating the locking cover structure for locking or unlocking the cylinder cover and the opening cover structure for opening or closing the cylinder cover on a flip plate rotatably connected to the cylinder body, the rotation and flipping actions of the cylinder cover can be concentrated on the flip plate, greatly simplifying the equipment structure, and facilitating the automatic opening and closing of the cylinder cover, ensuring that the cylinder cover moves along a predetermined trajectory during the opening and closing process, avoiding deviation or jamming, and ensuring the safety of operators and equipment; at the same time, by adopting the meshing transmission cooperation of gears and arc-shaped rack parts, compared with directly using a telescopic cylinder to use a linear drive method to complete the opening and closing of the cylinder cover, the locking and unlocking actions of the cylinder cover can be made smoother, safer, more reliable and more efficient.

[0036] In some embodiments, reference Figures 1 to 7 The edge of the cylinder head 2 is provided with a limit baffle 23 that protrudes and extends toward the outer wall of the cylinder body 1. The cylinder body 1 is provided with a locking device 7 for locking the limit baffle 23. The additional locking device can be used to lock the limit baffle fixed to the cylinder head when the cylinder head is in the locked state, thereby providing better safety protection.

[0037] In some specific embodiments, such as Figures 4 to 6As shown, the locking device 7 includes a shaft seat 71 vertically fixed on the outer wall of the cylinder body 1, a second rotating shaft 72 rotatably connected to the shaft seat 71, a locking plate 73 connected to the upper end of the second rotating shaft 72, and a handle 74 connected to the locking plate 73. The end of the limit baffle 23 close to the locking plate 73 is provided with a recessed portion 231, and the side wall of the lock plate 73 is provided with a pressing portion 731 for abutting against the recessed portion 231 and an avoidance notch 732 for smoothly passing through the limit baffle 23. In this way, by grabbing the handle and driving the lock plate to rotate around the second rotating shaft, the pressing portion on the lock plate can abut against the recessed portion on the limit baffle to maintain the cylinder cover in a locked state, or the avoidance notch on the lock plate can be directed towards the limit baffle, thereby facilitating unlocking and rotating the cylinder cover.

[0038] In order to be able to more accurately control the movement of the lock plate, more specifically, Figure 5 As shown, the lower portion of the shaft seat 71 is provided with a limiting opening 711 for limiting the rotation angle of the lock plate 73. The lower end of the second rotating shaft 72 is provided with a limiting post 721 that extends into the limiting opening 711. As an example, the opening of the limiting opening 711 can be designed to be 90 degrees. When the grab handle drives the lock plate to rotate, the side walls of the limiting opening can abut against the limiting posts on the second rotating shaft when the cylinder head is locked and unlocked, respectively, thereby precisely controlling the locking or unlocking of the limiting baffle.

[0039] refer to Figures 1 to 7 To prevent the operator from accidentally bumping the handle and causing the lock plate to lose its fixed position, an improved embodiment includes a proximity switch 75, a latch 76, and a first telescopic cylinder 77 for driving the latch 76 up and down, located below the lock plate 73. The lock plate 73 includes a socket 733 corresponding to the latch 76 and a positioning portion 734 corresponding to the proximity switch 75. The proximity switch serves as a position detector, monitoring whether the cylinder cover is fully closed and ensuring operational accuracy. When the cylinder cover is locked, the locking plate is rotated and the pressing portion on the locking plate abuts the recessed portion of the limit stop. The positioning portion on the locking plate aligns with the proximity switch, triggering it. This activates the first telescopic cylinder, driving the latch upward and into the socket on the locking plate, securing the lock plate. This prevents accidental contact that could release the lock plate by pushing the handle, further improving safety and reliability. For example, the proximity switch 75 can be an infrared photoelectric switch.

[0040] In some specific embodiments, reference Figures 1 to 7The top of the cylinder body 1 is provided with a first limit block 14 corresponding to when the cylinder cover 2 is locked in place, and a second limit block 15 corresponding to when the cylinder cover 2 is unlocked. The first limit block 14 and the second limit block 15 are respectively located on either side of the limit baffle 23. By adjusting and controlling the distance between the first limit block and the second limit block, the movable range of the limit baffle is precisely matched with the spacing between two adjacent second protrusions located at the opening of the cylinder body. As a result, the cylinder cover can be opened or closed by rotating approximately the angle of the first protrusion. This facilitates the second driving device to more quickly and reliably drive the cylinder cover to rotate and complete the switching between the unlocked and locked states, thereby accelerating the entire opening or closing process of the cylinder cover.

[0041] In some embodiments, reference Figure 1 、 Figure 4 and Figure 7 The side wall of the cylinder body 1 is provided with a pressure relief valve 16 communicating with the interior of the cylinder body. The pressure relief valve 16 is connected to a third drive device 17 for driving the valve core of the pressure relief valve to rotate open or close. The third drive device allows the pressure relief valve to automatically open to relieve pressure when the cylinder cover needs to be opened, facilitating subsequent opening of the cylinder cover under safe pressure and temperature conditions, thereby improving safety.

[0042] In some specific embodiments, the first driving device 4, the second driving device 6, and the third driving device 17 are rotation driving devices.

[0043] As a preferred embodiment, the rotary drive devices used by the first drive device 4, the second drive device 6, and the third drive device 17 are swing cylinders. These are powered by compressed air, and their rotational motion is converted into left and right rotation or flipping of the cylinder cover and rotation of the valve core of the pressure relief valve. The speed of motion is regulated by a throttle valve to avoid impact and ensure a smooth opening process. For example, the swing cylinders use SMC vane-type swing cylinders, model CDRB1BW50-180SE-M9BL, with built-in position switches or encoders for precise control of the rotation angle range.

[0044] In some other embodiments, pneumatic motors or electric motors can also be used to replace the oscillating cylinders according to the needs of use. Of course, compared with the insufficient torque of pneumatic motors, the use of oscillating cylinders has greater torque, which is convenient for driving the flip plate equipped with the cylinder head, the second drive device, and the balance hammer to flip in a more stable posture; compared with electric motors as driving power sources, electric motors are expensive, require high installation precision, are easily affected by signal interference, and are inconvenient to maintain. The use of oscillating cylinders, because they are driven by high-pressure gas, has lower operating costs and lower installation precision requirements than using electric motors, which has obvious advantages in use. Therefore, the first drive device, the second drive device, and the third drive device use oscillating cylinders that have better working effects and unique performance than pneumatic motors or electric motors.

[0045] In some embodiments, reference Figures 1 to 7 To ensure smoother flipping of the flip plate under the drive of the first drive device, a counterweight 32 is provided on the end of the flip plate 3 away from the cylinder head 2. Furthermore, the support base 13 is provided with a cushioning pad 131 for abutting the flip plate 3 when the cylinder head 2 is opened. This ensures that the flip plate precisely abuts the cushioning pad when the cylinder head is fully opened. Furthermore, the cushioning pad prevents the flip plate from directly impacting the support base and producing a loud clattering sound during rotation.

[0046] In some specific embodiments, such as Figure 4 and Figure 5 As shown, the support base 13 includes two symmetrically distributed ear plates 132. The first rotating shaft 31 fixedly connected to the flip plate 3 is rotatably mounted and connected to the two ear plates 132 through two bearings 133. A buffer pad 131 is fixedly mounted on the inner side of each ear plate 132.

[0047] In some specific application scenarios, the automatic lid opening device of this embodiment can be applied to pressure vessels in various fields of use to automatically open or close the lid, such as textile dyeing equipment, food processing, and daily chemical product production. As an example, the pressure vessel can be a stainless steel cylinder or barrel structure of various types, equipped with pressure sensors and temperature sensors to prevent the lid from opening when the pressure and temperature do not reach safe values, or to lock the cylinder lid in the event of an unexpected situation during the lid opening process, thereby ensuring the safety of operators and equipment.

[0048] Example 2

[0049] Please refer to Figures 1 to 7 This embodiment provides an automatic cover opening device for use in a dyeing machine. The automatic cover opening device is provided with a yarn pressing device 8 based on the embodiment 1.

[0050] Specifically, such as Figures 1 to 3 、 Figure 6 and Figure 7 As shown, a vertically distributed hollow shaft 24 is fixed in the middle of the cylinder cover 2, and the outer periphery of the hollow shaft 24 is rotatably connected to the flip plate 3. The yarn pressing device 8 is mounted on the hollow shaft 24. The yarn pressing device 8 includes a driving rod 81, a pressing cover 82, and a second telescopic cylinder 83. The driving rod 81 is slidably connected to the hollow shaft 24. The lower end of the driving rod 81 extends into the inner cavity of the cylinder body 1 and is connected to the pressing cover 82. The upper end of the driving rod 81 is connected to the telescopic end of the second telescopic cylinder 83. By driving the second telescopic cylinder, the driving rod can be used to drive the pressing cover to move up and down. After the fabric is placed in the inner cavity of the cylinder body and the cylinder cover is closed and locked, the second telescopic cylinder can be activated to drive the pressing cover downward, thereby pressing the fabric.

[0051] refer to Figure 3 、 Figure 6 and Figure 7 To improve the seal between the drive rod and the hollow shaft, a sealing device 9 is provided at the bottom of the hollow shaft 24. Specifically, the sealing device 9 includes a sealing ring 91 and a gland 92. The sealing ring 91 is located between the hollow shaft 24 and the drive rod 81. The gland 92 is located below the sealing ring 91 and is connected to the bottom of the hollow shaft 24 via fasteners such as screws.

[0052] Example 3

[0053] Please refer to Figures 1 to 7 , this embodiment provides a dyeing machine, including the automatic cover opening device of embodiment 1 or embodiment 2.

[0054] Cylinder body 1 is equipped with a temperature sensor for detecting the internal temperature of the cylinder body and a pressure sensor for detecting the internal pressure of the cylinder body. These sensors provide real-time temperature and pressure feedback. The pressure sensor detects whether the internal pressure of the cylinder body has dropped to a safe value, thereby avoiding the danger of residual high pressure when the lid is opened. The lid is not allowed to be opened until the temperature sensor confirms that the temperature has dropped to a safe range, preventing burns caused by high-temperature steam.

[0055] The dyeing machine also includes a control device connected to an alarm and several operating buttons. For example, the control device uses a PLC controller, which can precisely set and control the timing and sequence of lid opening, working in conjunction with other steps in the dyeing process. Furthermore, sensors such as pressure, temperature, and position provide real-time monitoring and feedback to ensure safe lid opening. The alarm uses an audible and visual alarm.

[0056] Working principle: On the one hand, the automatic lid opening device uses compressed air as the power drive to realize the actions of lid opening and pressure relief, ensuring the stability of the lid opening process. It can be used to improve the efficiency of automated production, replace manual lid opening, reduce operation time, and adapt to continuous production. On the other hand, by linking with the dyeing program, it can achieve seamless connection of "dyeing-unloading-unloading", thereby improving equipment utilization; the dyeing machine can issue the lid opening instruction according to the time node through the PLC controller according to the preset process flow (such as after dyeing is completed). In addition, through the safety interlock protection design of temperature sensors, pressure sensors, pressure relief valves, photoelectric switches, latches, etc., an interlocking mechanism is formed, so that if the pressure and temperature do not reach the safety threshold, or the cylinder cover is not completely closed, the system will lock the lid opening function and alarm to avoid misoperation, put an end to opening the lid under high temperature and high pressure conditions, and avoid steam injection or dye splashing to prevent burns and equipment corrosion.

[0057] Working process description:

[0058] 1. Closed loop in dyeing stage: During the dyeing process, the cylinder cover 2 maintains a closed seal with the opening of the cylinder body 1 through the staggered convex structure, ensuring the stability of the dye solution temperature and pressure.

[0059] 2. Signal Trigger Preparation: After the dyeing process is completed, the PLC controller issues an "open lid" command and simultaneously activates the pressure sensor and temperature sensor to check whether the pressure and temperature inside the cylinder have dropped to safe values ​​(e.g., pressure < 0.02MPa, temperature < 80°C). If the test fails to meet the standards, the system continues to wait and issues an alarm; if the standards are met, it proceeds to the next step.

[0060] 3. Power execution to open the cover: Figure 1 and Figure 7 As shown, the pneumatic system is turned on, the first telescopic cylinder 77 retracts the pin 76, the handle 74 is turned to release the limit baffle 23, and then the third drive device 17 drives the valve core of the pressure relief valve 16 to rotate into place to open the pressure relief valve 16, and the second drive device 6 drives the gear 5 to rotate through the meshing rack part 22 to drive the cylinder head 2 to rotate slowly, and stops after reaching a certain position, and the first drive device 4 drives the first rotating shaft 31 to rotate so that the flip plate 3 drives the cylinder head 2 to flip and rise upward, and the movement speed is adjusted by the throttle valve to avoid impact, and the mechanical transmission structure composed of the gear 5 and the rack part 22 can ensure that the cylinder head 2 moves along a fixed track to prevent deviation.

[0061] 4. Position Feedback and Locking: When the cylinder cover 2 reaches its maximum open position, the encoder or position switch on the first drive unit 4 signals "opening completed." The PLC controller records this status, allowing manual yarn removal or loading. If a pause is required, a sensor detecting an anomaly immediately shuts off the air supply, maintaining the cylinder cover's current position. In an emergency, an emergency stop button interrupts all operations.

[0062] 5. Closing and resetting process: After the manual operation is completed, press the "close cover" button, the action is reversed, and the cylinder cover 2 automatically closes and locks along the original trajectory. After the proximity switch 75 confirms that the cover is closed in place and sealed, enter the next round of dyeing process.

[0063] The above embodiments are merely illustrative of the concepts and technical solutions of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed herein are intended to be covered by the claims of the present invention.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic lid opening device, comprising a cylinder body and a cylinder cover, wherein the cylinder cover is arranged on the opening of the cylinder body, a plurality of first protrusions are distributed in a circumferential array on the outer periphery of the cylinder cover, a plurality of annular positioning grooves are provided at the opening of the cylinder body, and a plurality of second protrusions are provided above the positioning grooves and are engaged with the first protrusions in a corresponding manner, characterized in that: The side wall of the cylinder body is provided with a support seat and a first rotating shaft rotatably mounted on the support seat, the outer wall of the first rotating shaft is fixedly connected to a flip plate, and the end of the flip plate close to the cylinder body is rotatably connected to the middle part of the cylinder cover, and the support seat is provided with a first driving device for driving the flip plate to rotate around the first rotating shaft to open or close the cylinder cover; the edge of the cylinder cover is provided with a rack portion, and the rack portion is meshed with a gear, and the flip plate is provided with a second driving device for driving the gear to rotate to lock or unlock the cylinder cover.

2. The automatic cover opening device according to claim 1, characterized in that: The edge of the cylinder cover is provided with a limit baffle protruding and extending toward the outer side wall of the cylinder body, and the cylinder body is provided with a locking device for locking the limit baffle.

3. The automatic cover opening device according to claim 2, characterized in that: The locking device includes a shaft seat vertically fixed on the outer wall of the cylinder body, a second rotating shaft rotatably connected to the shaft seat, a locking plate connected to the upper end of the second rotating shaft, and a handle connected to the locking plate. The limit baffle is provided with a recessed portion at one end close to the locking plate, and the side wall of the lock plate is provided with a pressing portion for abutting against the recessed portion and an avoidance gap for the limit baffle to pass smoothly.

4. The automatic cover opening device according to claim 3, characterized in that: A proximity switch, a latch and a first telescopic cylinder for driving the latch to move up and down are provided below the lock plate. The lock plate is provided with a socket corresponding to the latch and a positioning portion corresponding to the proximity switch.

5. The automatic cover opening device according to claim 2, characterized in that: The top of the cylinder body is provided with a first limiting block corresponding to the cylinder cover being locked in place and a second limiting block corresponding to the cylinder cover being unlocked in place, and the first limiting block and the second limiting block are respectively located on both sides of the limiting baffle.

6. The automatic cover opening device according to claim 1, characterized in that: A pressure relief valve communicating with the interior of the cylinder body is provided on the side wall of the cylinder body. The pressure relief valve is connected to a third driving device for driving a valve core of the pressure relief valve to rotate open or close.

7. The automatic cover opening device according to claim 6, characterized in that: The first driving device, the second driving device, and the third driving device are rotation driving devices, and the rotation driving device includes any one of a swing cylinder, a pneumatic motor, and an electric motor.

8. The automatic cover opening device according to claim 1, characterized in that: A balance weight is provided at one end of the flip plate away from the cylinder cover, and the support seat is provided with a buffer pad for abutting against the flip plate when the cylinder cover is opened.

9. A dyeing machine, characterized in that: The invention comprises the automatic cover opening device according to any one of claims 1 to 8.

10. The dyeing machine according to claim 9, characterized in that A vertically distributed hollow shaft is fixed to the middle of the cylinder cover, and the outer periphery of the hollow shaft is rotatably connected to the flip plate; the hollow shaft is provided with a yarn pressing device, which includes a driving rod, a pressing cover and a second telescopic cylinder, the driving rod is slidably connected to the hollow shaft, the lower end of the driving rod extends into the inner cavity of the cylinder body and is connected to the pressing cover, and the upper end of the driving rod is connected to the telescopic end of the second telescopic cylinder.

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