Automatic uncovering device and dyeing machine

Abstract

This utility model discloses an automatic cap-opening device, including a cylinder body and a cylinder head. Several first protrusions are arranged in a circumferential array around the outer periphery of the cylinder head. A positioning groove is provided at the opening of the cylinder body, and several second protrusions corresponding to and engaging with the first protrusions are provided above the positioning groove. A support seat is provided on the side wall of the cylinder body, and a first rotating shaft is rotatably mounted on the support seat. A flipping plate is fixedly connected to the outer wall of the first rotating shaft, and the flipping plate is rotatably connected to the center of the cylinder head. The support seat is provided with a first driving device for driving the flipping plate to rotate around the first rotating shaft to open or close the cylinder head. A rack portion is provided along the edge of the cylinder head, and a gear is meshed with the rack portion. The flipping plate is provided with a second driving device for driving the gear to rotate to lock or unlock the cylinder head. In addition, a dyeing machine including this automatic cap-opening device is also provided. This utility model can automatically open and close the cylinder head in conjunction with the dyeing process, making the opening and closing of the cylinder head smoother, safer, more reliable, and more efficient.

Description

Technical Field

[0001] This utility model relates to the field of lid opening technology, and in particular to an automatic lid opening device and a dyeing machine. Background Technology

[0002] As a textile dyeing and finishing equipment, a dyeing machine generally includes a cylinder body and a cylinder cover that are locked together. During operation, high-temperature steam is heated and radiated into the inside of the cylinder body through heat exchange coils, thereby maintaining a high temperature inside the cylinder body. High pressure is generated by the vapor pressure and gas pressure produced by the heating of the liquid itself, achieving the effect of high-speed dyeing.

[0003] Currently, the cylinder cover of existing dyeing machines generally uses a staggered protrusion structure to lock and connect with the cylinder body. It is locked or unlocked by rotating the cylinder cover around its center at a certain angle through manual operation, and opened or closed by flipping the cylinder cover in the vertical plane. Since the cylinder cover is opened and closed manually, there is a risk of safety if the cover is opened before the pressure or temperature reaches the safe value. Utility Model Content

[0004] The purpose of this invention is to provide an automatic lid opening device and dyeing machine that can automatically open and close the cylinder lid in conjunction with the dyeing process, making the opening and closing of the cylinder lid more stable, safe, reliable and efficient, and effectively solving the safety and inconvenience problems of the existing manual operation of opening and closing the cylinder lid.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides an automatic cylinder opening device, including a cylinder body and a cylinder head. The cylinder head is closed and disposed at the opening of the cylinder body. A plurality of first protrusions are arranged in a circumferential array around the outer periphery of the cylinder head. The opening of the cylinder body is provided with a ring-shaped positioning groove. Above the positioning groove are a plurality of second protrusions that are engaged with the first protrusions. The side wall of the cylinder body is provided with a support seat and a first rotating shaft rotatably mounted on the support seat. A flipping plate is fixedly connected to the outer wall of the first rotating shaft. One end of the flipping plate near the cylinder body is rotatably connected to the middle of the cylinder head. The support seat is provided with a first driving device for driving the flipping plate to rotate around the first rotating shaft to open or close the cylinder head. The edge of the cylinder head is provided with a rack portion, which is meshed with a gear. The flipping plate is provided with a second driving device for driving the gear to rotate to lock or unlock the cylinder head.

[0007] Furthermore, the cylinder head has a limiting baffle extending outward toward the outer wall of the cylinder body along its edge, and the cylinder body has a locking device for locking the limiting baffle.

[0008] Furthermore, 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 limiting baffle has a recessed portion at one end near the locking plate, and the side wall of the locking plate has a pressing portion for abutting against the recessed portion and an avoidance notch for the limiting baffle to pass smoothly.

[0009] Furthermore, a proximity switch, a pin, and a first telescopic cylinder for driving the pin to move up and down are provided below the locking plate. The locking plate is provided with a hole corresponding to the pin and a positioning part corresponding to the proximity switch.

[0010] Furthermore, the top of the cylinder body is provided with a first limiting block corresponding to the cylinder head being locked in place and a second limiting block corresponding to the cylinder head being unlocked in place, the first limiting block and the second limiting block being located on both sides of the limiting baffle.

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

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

[0013] Furthermore, a counterweight is provided at the end of the flip plate away from the cylinder head, and a buffer pad is provided on the support base for abutting against the flip plate when the cylinder head is opened.

[0014] Secondly, this utility model also provides a dyeing machine, including the aforementioned automatic lid-opening device.

[0015] Furthermore, a vertically distributed hollow shaft is fixed in the middle of the cylinder head, 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 drive rod, a pressing cover and a second telescopic cylinder. The drive rod is slidably connected to the hollow shaft, the lower end of the drive rod extends into the inner cavity of the cylinder body and is connected to the pressing cover, and the upper end of the drive rod is connected to the telescopic end of the second telescopic cylinder.

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

[0017] The cylinder head of this invention utilizes a staggered protrusion structure to achieve a rotating and locking connection with the opening of the cylinder body. By integrating the locking structure for locking or unlocking the cylinder head and the opening structure for opening or closing the cylinder head onto a rotating plate that is rotatably connected to the cylinder body, the rotation and flipping actions of the cylinder head are concentrated on the rotating plate, greatly simplifying the equipment structure and facilitating automatic opening and closing of the cylinder head. This ensures that the cylinder head moves along a predetermined trajectory during opening and closing, avoiding deviation or jamming and ensuring the safety of operators and equipment. Furthermore, this invention employs a gear and an arc-shaped rack for meshing transmission, which, compared to directly using a telescopic cylinder with a linear drive to open and close the cylinder head, makes the locking and unlocking actions of the cylinder head smoother, safer, more reliable, and more efficient.

[0018] This utility model can be used to improve the efficiency of automated production, replace manual opening of the lid, reduce operation time, adapt to continuous production, and has a novel structure. By linking with the dyeing process, it can achieve seamless connection of "dyeing-opening-unloading", improve equipment utilization, and help improve dyeing uniformity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention when the cylinder head is in the closed and locked state;

[0021] Figure 2 This is a top view of the structure of the present invention when the cylinder head is in the closed and locked state;

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

[0023] Figure 4 This is a schematic diagram of the locking device 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 head, yarn pressing device and flipping plate;

[0026] Figure 7 This is a three-dimensional structural diagram of the present invention when the cylinder head is unlocked and opened.

[0027] Reference numerals: 1. Cylinder body; 11. Positioning groove; 12. Second protrusion; 13. Support seat; 131. Buffer pad; 132. Ear plate; 133. Bearing; 14. First limiting block; 15. Second limiting block; 16. Pressure relief valve; 17. Third drive device; 2. Cylinder head; 21. First protrusion; 22. Rack; 23. Limiting baffle; 231. Recess; 24. Hollow shaft; 3. Tilting plate; 31. First rotating shaft; 32. Counterweight; 4. First drive device; 5. Gear 6. Second drive device; 7. Locking device; 71. Shaft seat; 711. Limiting opening; 72. Second rotating shaft; 721. Limiting post; 73. Locking plate; 731. Pressing part; 732. Clearance notch; 733. Insertion hole; 734. Positioning part; 74. Handle; 75. Proximity switch; 76. Pin; 77. First telescopic cylinder; 8. Yarn pressing device; 81. Drive rod; 82. Pressing cover; 83. Second telescopic cylinder; 9. Sealing device; 91. Sealing ring; 92. Pressing cover. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

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

[0034] Example 1

[0035] Please refer to Figures 1-7This embodiment provides an automatic cylinder opening device, including a cylindrical cylinder body 1 and a circular cylinder head 2. The cylinder head 2 is closed and disposed at the opening of the cylinder body 1. A plurality of first protrusions 21 are arranged in a circumferential array around the outer periphery of the cylinder head 2. The opening of the cylinder body 1 is provided with a ring-shaped positioning groove 11. Above the positioning groove 11 are a plurality of second protrusions 12 that are engaged with the first protrusions 21. In this way, the cylinder head can use the staggered protrusion structure as a quick-opening door structure to achieve a rotating and locking connection with the opening of the cylinder body. The cylinder body 1 has a support base 13 on its side wall and a first rotating shaft 31 rotatably mounted on the support base 13. A flip plate 3 is fixedly connected to the outer wall of the first rotating shaft 31. The end of the flip plate 3 near the cylinder body 1 is rotatably connected to the middle of the cylinder head 2. The support base 13 has 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 head 2. The edge of the cylinder head 2 has an arc-shaped rack portion 22. The rack portion 22 is meshed with a gear 5. The flip plate 3 has a second driving device 6 for driving the gear 5 to rotate to lock or unlock the cylinder head 2. By integrating the cylinder head locking structure and the cylinder head opening structure into a rotating plate connected to the cylinder body, the rotation and flipping actions of the cylinder head are concentrated on the rotating plate, greatly simplifying the equipment structure. This also facilitates automatic opening and closing of the cylinder head, ensuring that it 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 using gears and an arc-shaped rack for meshing transmission, compared to directly using a telescopic cylinder to use a linear drive to open and close the cylinder head, the locking and unlocking actions of the cylinder head are more stable, safe, reliable, and efficient.

[0036] In some implementations, reference Figures 1-7 The cylinder head 2 has a limiting baffle 23 extending protruding toward the outer wall of the cylinder body 1 along its edge, and the cylinder body 1 has a locking device 7 for locking the limiting baffle 23. With the additional locking device, the limiting baffle fixed on the cylinder head can be locked when the cylinder head is in the locked state, which provides better safety protection.

[0037] In some specific implementation methods, such as Figures 4-6As shown, the locking device 7 includes a shaft seat 71 vertically fixed to 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 limiting baffle 23 has a recess 231 at one end near the locking plate 73. The side wall of the locking plate 73 has a pressing part 731 for abutting against the recess 231 and an clearance notch 732 for the limiting baffle 23 to pass smoothly. Thus, by gripping the handle and driving the locking plate to rotate around the second rotating shaft, the pressing part on the locking plate can abut against the recess on the limiting baffle to maintain the cylinder head in a locked state, or the clearance notch on the locking plate can face the limiting baffle, thereby facilitating unlocking and rotating to open the cylinder head.

[0038] In order to more precisely control the movement of the locking plate, more specifically, such as Figure 5 As shown, the lower part of the bearing seat 71 is provided with a limiting opening 711 for limiting the rotation angle of the locking plate 73, and the lower end of the second rotating shaft 72 is provided with a limiting post 721 extending into the limiting opening 711. As an example, the opening degree of the limiting opening 711 can be designed to be 90 degrees. During the process of the gripping handle driving the locking plate to rotate, the two side walls of the limiting opening can abut against the limiting post on the second rotating shaft in the two states of locking and unlocking the cylinder head, respectively, thereby accurately controlling the locking or unlocking of the limiting baffle.

[0039] refer to Figures 1-7 To prevent the locking plate from malfunctioning due to accidental collisions with the handle, an improved implementation includes a proximity switch 75, a pin 76, and a first telescopic cylinder 77 for driving the pin 76 up and down. The locking plate 73 has a hole 733 corresponding to the pin 76 and a positioning part 734 corresponding to the proximity switch 75. The proximity switch detects the position and monitors whether the cylinder head is fully closed, ensuring accurate operation. When the cylinder head is locked, rotating the locking plate and pressing it against the recess of the limiting baffle activates the positioning part of the locking plate, triggering the proximity switch. This activates the first telescopic cylinder to drive the pin upward and into the hole in the locking plate, fixing the locking plate in place. This prevents accidental contact that could loosen the locking plate and further improves safety and reliability. For example, the proximity switch 75 can be an infrared photoelectric switch.

[0040] In some specific implementation methods, refer to Figures 1-7The top of the cylinder body 1 is provided with a first limiting block 14 corresponding to the cylinder head 2 being locked in place and a second limiting block 15 corresponding to the cylinder head 2 being unlocked in place. The first limiting block 14 and the second limiting block 15 are respectively located on both sides of the limiting baffle 23. By adjusting and controlling the distance between the first limiting block and the second limiting block, the range of motion of the limiting baffle is made to match the distance between two adjacent second protrusions at the opening of the cylinder body. This allows the cylinder head to be opened or closed by rotating approximately one angle of the first protrusion. This facilitates the second driving device to drive the cylinder head to rotate more quickly and reliably to complete the switching between the unlocked and locked states, and speeds up the entire opening or closing process of the cylinder head.

[0041] In some implementations, reference Figure 1 , Figure 4 and Figure 7 The cylinder body 1 has a pressure relief valve 16 communicating with the inside of the cylinder body on its side wall. The pressure relief valve 16 is connected to a third driving device 17 for driving the valve core of the pressure relief valve to rotate and open or close. With the setting of the third driving device, when it is necessary to open the cylinder head, the pressure relief valve can be automatically opened by the third driving device to complete the pressure relief, thereby facilitating the subsequent opening of the cylinder head under safe pressure and temperature conditions and improving safety.

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

[0043] In a preferred embodiment, the rotary drive devices used in the first drive device 4, the second drive device 6, and the third drive device 17 are swing cylinders, which utilize compressed air as a power source. This converts their rotational motion into the left-right rotation or flipping action of the cylinder head and the rotation of the valve core of the pressure relief valve. The movement speed is adjusted by a throttle valve to avoid impact and ensure a smooth opening process. As an example, the swing cylinder is an SMC vane-type swing cylinder, model CDRB1BW50-180SE-M9BL, which has a built-in position switch or encoder for precise control of the rotation angle range.

[0044] In other implementations, pneumatic motors or electric motors can be used instead of swing cylinders, depending on the application requirements. Of course, compared to the insufficient torque of pneumatic motors, swing cylinders offer greater torque, facilitating the smoother rotation of the tilting plate equipped with the cylinder head, second drive unit, and counterweight. Furthermore, compared to electric motors as a driving power source, electric motors are expensive, require high installation precision, are susceptible to signal interference, and are inconvenient to maintain. Swing cylinders, driven by high-pressure gas, have lower operating costs and require less installation precision than electric motors, offering significant advantages. Therefore, using swing cylinders for the first, second, and third drive units provides better performance and unique advantages compared to pneumatic motors or electric motors.

[0045] In some implementations, reference Figures 1-7 To ensure smoother rotation of the tilting plate under the drive of the first drive device, a counterweight 32 is provided at the end of the tilting plate 3 furthest from the cylinder head 2. Furthermore, the support base 13 is provided with a buffer pad 131 for contacting the tilting plate 3 when the cylinder head 2 is open. This ensures that the tilting plate contacts the buffer pad precisely when the cylinder head is fully open; and the buffer pad prevents the tilting plate from directly impacting the support base and producing loud collision noises during rotation.

[0046] In some specific implementation methods, 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, which is fixedly connected to the flip plate 3, is rotatably connected to the two ear plates 132 through two bearings 133 respectively. A buffer pad 131 is fixedly installed on the inner side of each ear plate 132.

[0047] In specific application scenarios, the automatic lid opening device of this embodiment can be applied to pressure vessels in different fields to automatically open or close the lid, such as textile dyeing equipment, food processing, and daily chemical product manufacturing. As an example, the pressure vessel can be of various types of stainless steel cylinder or cylindrical structure, equipped with pressure and temperature sensors to prevent opening the lid when the pressure or temperature has not reached safe values, or to lock the cylinder lid in case of unexpected situations during the opening process, thus ensuring the safety of operators and equipment.

[0048] Example 2

[0049] Please refer to Figures 1-7 This embodiment provides an automatic cap opening device for use in a dyeing machine. The automatic cap opening device is based on Embodiment 1 and includes a yarn pressing device 8.

[0050] Specifically, such as Figures 1-3 , 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 flipping plate 3. A yarn pressing device 8 is mounted on the hollow shaft 24. The yarn pressing device 8 includes a drive rod 81, a pressing cover 82, and a second telescopic cylinder 83. The drive rod 81 is slidably connected to the hollow shaft 24, and its lower end extends into the inner cavity of the cylinder body 1 and is connected to the pressing cover 82. The upper end of the drive rod 81 is connected to the telescopic end of the second telescopic cylinder 83. Driven by the second telescopic cylinder, the pressing cover can be moved up and down using the drive rod. After the fabric is placed into 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 downwards, thereby pressing the fabric.

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

[0052] Example 3

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

[0054] The cylinder body 1 is equipped with a temperature sensor for detecting the internal temperature and a pressure sensor for detecting the internal pressure. These sensors allow for real-time monitoring and feedback of temperature and pressure. The pressure sensor detects whether the internal pressure has dropped to a safe level, preventing residual high pressure from causing danger when the cover is opened. The cover is only allowed to be opened after the temperature has been confirmed to have dropped to a safe range, preventing burns from high-temperature steam.

[0055] In addition, the dyeing machine includes a control device connected to an alarm and several operation buttons. As an example, the control device uses a PLC controller, which can precisely set and control the opening time and sequence, working in conjunction with other stages of the dyeing process. Simultaneously, it relies on sensors for real-time monitoring and feedback, such as pressure, temperature, and position sensors, to ensure that the lid is opened under safe conditions. The alarm is an audible and visual alarm.

[0056] Working Principle: On one hand, the automatic cap-opening device uses compressed air as power to achieve cap opening and pressure relief actions, ensuring a stable cap-opening process. It can be used to improve efficiency in automated production, replace manual cap opening, reduce operation time, and adapt to continuous production. On the other hand, by linking with the dyeing process, it achieves seamless connection between "dyeing-cap opening-unloading," improving equipment utilization. The dyeing machine can issue cap-opening commands according to preset process flows (such as after dyeing is completed) via a PLC controller at time nodes. In addition, through safety interlock protection designs such as temperature sensors, pressure sensors, pressure relief valves, photoelectric switches, and latches, an interlock mechanism is formed. If the pressure or temperature does not reach the safety threshold, or if the cylinder cap is not fully closed, the system will lock the cap-opening function and sound an alarm to avoid misoperation and prevent cap opening under high temperature and high pressure conditions, thus avoiding burns and equipment corrosion caused by steam jets or dye splashes.

[0057] Work process description:

[0058] 1. Closed-loop dyeing stage: During the dyeing process, the cylinder cover 2 maintains a closed seal with the opening of the cylinder body 1 through a staggered protrusion structure, ensuring stable dye liquor 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 and temperature sensors to detect whether the pressure and temperature inside the cylinder have dropped to safe values ​​(e.g., pressure < 0.02 MPa, temperature < 80℃). If the detection fails, the system continues to wait and alarms; if it meets the standards, it proceeds to the next step.

[0060] 3. Power-driven lid opening: such as Figure 1 and Figure 7 As shown, when the pneumatic system is activated, 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 and open the pressure relief valve 16. The second drive device 6 drives the gear 5 to rotate and drive the cylinder head 2 to rotate slowly through the meshing rack part 22. After reaching a certain position, it stops. The first drive device 4 drives the first rotating shaft 31 to rotate, so that the flipping plate 3 drives the cylinder head 2 to flip up and rise. The movement speed is adjusted by the throttle valve to avoid impact. Moreover, the mechanical transmission structure formed by the gear 5 and the rack part 22 can ensure that the cylinder head 2 moves along a fixed trajectory and prevents deviation.

[0061] 4. Position Feedback and Locking: When cylinder head 2 reaches the maximum open position, the encoder or position switch on the first drive device 4 sends a "opening complete" signal, and the PLC controller records the status. At this time, manual operation can be performed to remove yarn or add material. If a pause is required, the sensor will detect an abnormality and immediately cut off the air supply, keeping the cylinder head in its current position. In an emergency, the emergency stop button can forcibly interrupt all actions.

[0062] 5. Closing and Resetting Process: After manual operation is completed, press the "Close Cover" button to reverse the action. The cylinder cover 2 will automatically close and lock along the original trajectory. After the proximity switch 75 confirms that the cover is closed and sealed, the next dyeing process will begin.

[0063] The above embodiments are merely illustrative of the concept and technical solution of this utility model, and are not intended to limit this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic cap opening device, comprising a cylinder body and a cylinder head, wherein the cylinder head is fitted onto the opening of the cylinder body, a plurality of first protrusions are arranged in a circumferential array around the outer periphery of the cylinder head, and a ring-shaped positioning groove is provided at the opening of the cylinder body, wherein a plurality of second protrusions are provided above the positioning grooves and engage with the first protrusions, characterized in that, The cylinder body has a support base on its side wall and a first rotating shaft rotatably mounted on the support base. A flip plate is fixedly connected to the outer wall of the first rotating shaft. One end of the flip plate near the cylinder body is rotatably connected to the middle of the cylinder head. The support base has a first driving device for driving the flip plate to rotate around the first rotating shaft to open or close the cylinder head. The edge of the cylinder head has a rack portion, which is meshed with a gear. The flip plate has a second driving device for driving the gear to rotate to lock or unlock the cylinder head.

2. The automatic lid-opening device according to claim 1, characterized in that, The cylinder head has a limiting baffle extending outward toward the outer wall of the cylinder body along its edge, and the cylinder body has a locking device for locking the limiting baffle.

3. The automatic lid-opening device according to claim 2, characterized in that, The locking device includes a shaft seat fixed vertically 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 limiting baffle has a recessed part at one end near the locking plate, and the side wall of the locking plate has a pressing part for abutting against the recessed part and an avoidance notch for the limiting baffle to pass smoothly.

4. The automatic lid-opening device according to claim 3, characterized in that, The lock plate is provided with a proximity switch, a pin, and a first telescopic cylinder for driving the pin to move up and down. The lock plate is provided with a hole corresponding to the pin and a positioning part corresponding to the proximity switch.

5. The automatic lid-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 head being locked in place and a second limiting block corresponding to the cylinder head being unlocked in place. The first limiting block and the second limiting block are respectively located on both sides of the limiting baffle.

6. The automatic lid-opening device according to claim 1, characterized in that, The cylinder body has a pressure relief valve that communicates with the inside of the cylinder body on its side wall. The pressure relief valve is connected to a third driving device for driving the valve core of the pressure relief valve to rotate and open or close.

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

8. The automatic lid-opening device according to claim 1, characterized in that, The end of the flip plate away from the cylinder head is provided with a counterweight, and the support base is provided with a buffer pad for abutting against the flip plate when the cylinder head is opened.

9. A dyeing machine, characterized in that, Includes the automatic lid-opening device as described in 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 in the middle of the cylinder head, 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 drive rod, a pressing cover and a second telescopic cylinder. The drive rod is slidably connected to the hollow shaft, the lower end of the drive rod extends into the inner cavity of the cylinder body and is connected to the pressing cover, and the upper end of the drive rod is connected to the telescopic end of the second telescopic cylinder.

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