Constant horizontal supporting device, constant horizontal supporting method and equipment

Abstract

The invention relates to the technical field of automatic winding, and discloses a constant horizontal supporting device, a constant horizontal supporting method and equipment. The constant horizontal supporting device is characterized in that one end of a shaft for bearing a coil stock is placed on a rotating unit; the measuring unit obtains the quality of the coil stock; the other end of the shaft for bearing the coil stock is placed on the rotary supporting unit; the compensation unit is supported at the bottom of the rotary supporting unit and is connected with the Z-axis lifting unit; the compensation unit is driven by the Z-axis lifting unit to ascend and descend according to the mass of the coil stock obtained by the measuring unit, and the supporting force on the rotary supporting unit is adjusted to be equal to half of the sum of the gravity of the coil stock and the gravity of the axis all the time. Half of the sum of the gravity of the coil stock and the gravity of the shaft is obtained in real time; the Z-axis lifting unit ascends and descends to drive the compensation unit to ascend and descend, and the supporting force on the rotary supporting unit is adjusted to be equal to half of the sum of the gravity of the coil stock and the axis all the time; and the rotating supporting unit and the rotating unit keep the shaft for bearing the coil stock in a constant horizontal state.

Description

Technical Field

[0001] This invention relates to the field of automatic winding technology, and more specifically to a constant horizontal support device, constant horizontal support method and equipment. Background Technology

[0002] Generally, roll film is conveyed using roll film winding and unwinding equipment. First, an air bearing carries the roll film. Then, the air bearing is placed on a first rotating support and a second rotating support for winding and unwinding. To facilitate the loading and unloading of the roll film, the second rotating support is designed to be lifting. When placing the air bearing, one end is first inserted into the first rotating support. Then, the second rotating support rises, supporting the other end of the air bearing. During the placement of the air bearing, when the second rotating support is not supporting the other end, the air bearing is in a cantilever state, generating bending moment and causing bending. When the second rotating support rises to support the air bearing, a height difference is created between the two ends of the air bearing, making it easy for the roll film to deviate during subsequent winding and unwinding operations.

[0003] Furthermore, during subsequent feeding and unloading operations, the roll diameter of the entire roll film changes constantly with continuous feeding and unloading, and the mass of the entire roll film also changes accordingly. This causes the forces on the first and second rotating supports to change constantly, and combined with the height difference between the two ends of the air shaft, it exacerbates the deviation of the air shaft. This can easily lead to the roll film deviating, wrinkling, and uneven unloading, significantly reducing printing quality, accuracy, and production efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a constant horizontal support device, a constant horizontal support method, and equipment to solve the problems in the prior art where, during the installation of the air shaft, the air shaft is in a cantilever state, generating bending moment and causing bending; when the second rotating support rises to support the air shaft, a height difference is formed between the two ends of the air shaft, making it easy for the roll film to deviate during subsequent unwinding and winding operations; and during subsequent unwinding and winding operations, with continuous unwinding and winding, the roll diameter of the entire roll film changes constantly, and the mass of the entire roll film also changes accordingly, causing the forces on the first and second rotating supports to change constantly. This, combined with the height difference between the two ends of the air shaft, exacerbates the deviation of the air shaft, easily leading to roll film deviation, wrinkling, and uneven winding, significantly reducing printing quality, accuracy, and production efficiency.

[0005] In a first aspect, the present invention provides a constant horizontal support device, comprising:

[0006] A rotating unit is fixedly installed, with one end of the shaft that carries the rolled material placed on the rotating unit;

[0007] The measuring unit is suitable for real-time measurement of the quality of the roll material.

[0008] The other end of the shaft that carries the coil is placed on the rotating support unit;

[0009] Z-axis lifting unit, suitable for rising and falling along the vertical Z-axis;

[0010] A compensation unit is supported at the bottom of the rotating support unit, and the bottom of the compensation unit is connected to the Z-axis lifting unit. Based on the real-time mass of the roll material obtained by the measuring unit, the compensation unit is raised or lowered via the Z-axis lifting unit, adjusting the supporting force on the rotating support unit to ensure it is always equal to half the sum of the roll material and the shaft weight. Beneficial effects: This application adopts the above technical solution, obtaining the roll material mass in real-time through the measuring unit, thus obtaining half the sum of the roll material and the shaft weight; the Z-axis lifting unit rises or falls, causing the compensation unit to rise or fall, adjusting the supporting force on the rotating support unit to ensure it is always equal to half the sum of the roll material and the shaft weight; the rotating support unit and the rotating unit keep the shaft carrying the roll material in a constant horizontal state; there is no height difference between the two ends of the shaft, preventing the roll material from deviating during subsequent winding and unwinding operations; and in subsequent winding and unwinding operations... During the process, as the material is continuously fed and retracted, although the roll diameter and mass of the entire roll film change constantly, and the force on the rotating support unit changes constantly, the Z-axis lifting unit rises or falls, driving the compensation unit to rise or fall, adjusting the support force on the rotating support unit so that it is always equal to half the sum of the weight of the roll material and the shaft. There is no height difference between the two ends of the shaft, preventing the shaft and the roll film from deviating, thereby preventing wrinkling and uneven retraction of the roll film, significantly improving printing quality, accuracy and production efficiency.

[0011] Optionally, the compensation unit includes:

[0012] The telescopic assembly is connected at the top to the rotating support unit;

[0013] A pressure sensor is located at the bottom of the telescopic assembly. The pressure sensor is adapted to obtain the value of the support force in real time. The telescopic assembly undergoes elastic deformation when the Z-axis lifting unit rises or falls, so as to compensate for the support force in real time.

[0014] Optionally, the telescopic component includes:

[0015] First guide seat;

[0016] The second guide seat has its top end connected to the rotating support unit, and its lower end movably connected to the first guide seat along the Z-direction.

[0017] The first guide member has its lower end connected to a pressure sensor; the upper end of the first guide member is movably connected to the second guide seat along the Z direction; an elastic element is provided between the first guide member and the second guide seat.

[0018] Optionally, it also includes:

[0019] The second guide member is movably connected to the second guide seat along the Z direction; the top end of the second guide member supports and fixes the rotating support unit; a lifting adjustment component is provided between the second guide seat and the second guide member, the lifting adjustment component is driven and connected to the second guide member, the lifting adjustment component has at least a first state and a second state, when the lifting adjustment component is in the first state the second guide member falls back to the lower limit position, when the lifting adjustment component is in the second state the second guide member rises to the upper limit position.

[0020] Optionally, the lifting adjustment assembly includes:

[0021] A rotating component, rotatably connected to the second guide component;

[0022] A cam plate is rotatably connected to a second guide seat. A curved surface is provided on the top of the cam plate, and the curved surface abuts against the outer periphery of the rotating component.

[0023] The driving component is fixedly connected to the cam plate at one end. The driving component drives the cam plate to rotate so that different positions of the curved surface of the cam plate abut against the outer periphery of the rotating component, thereby driving the second guide component to move along the Z direction.

[0024] Optionally, it also includes a locking component, which maintains the lifting adjustment component in the second state when locked;

[0025] The locking component includes:

[0026] The first locking member is slidably connected in the Z direction within the guide structure provided on the second guide member;

[0027] The second locking member is fixed to one side of the cam plate; when the first locking member slides down along Z and locks with the second locking member, the lifting adjustment assembly is in the second state; when the first locking member slides up along Z and disengages from the second locking member, the lifting adjustment assembly is in the first state or the lifting adjustment assembly switches between the first state and the second state.

[0028] Optionally, the rotating support unit consists of two spaced-apart rolling bearings; the shaft is located between the two rolling bearings; a first annular platform that contracts inward is provided at the top of the first guide seat; a second annular platform that extends outward is provided at the lower end of the second guide seat, and the second annular platform is located inside the first guide seat; when the shaft is released from the limiting position of the rolling bearings, the distance it moves along the Z direction is a first dimension; when the shaft is disengaged from the rotating support unit, the gap between the bottom surface of the first annular platform and the top surface of the second annular platform is a second dimension; the sum of the first dimension and the second dimension is a third dimension; when the cam plate rotates, the height difference of the rotating component moving up and down along the Z direction is not less than the third dimension.

[0029] Optionally, it also includes:

[0030] The first sliding member, and the Z-axis lifting unit is disposed on the first sliding member;

[0031] The second slider is slidably connected to the first slider in the Y direction along the horizontal plane.

[0032] Secondly, the present invention also provides a constant horizontal support method, which utilizes the aforementioned constant horizontal support device, comprising:

[0033] One end of the shaft carrying the roll is placed on the rotating unit;

[0034] The other end of the shaft carrying the roll is placed on the rotating support unit;

[0035] The measuring unit obtains the mass of the roll material, and thus obtains half of the sum of the roll material and the axle weight.

[0036] The Z-axis lifting unit drives the compensation unit to rise or fall, adjusting the support force on the rotating support unit so that half of the sum of the coil weight and the shaft weight is equal to the support force.

[0037] The rotating support unit and the rotating unit keep the shaft carrying the coil in a constant horizontal state.

[0038] Thirdly, the present invention also provides an apparatus, comprising: the aforementioned constant horizontal support device. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1A three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 1 ;

[0041] Figure 2 A three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 2 ;

[0042] Figure 3 This is a partial three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 1 ;

[0043] Figure 4 This is a partial three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 2 ;

[0044] Figure 5 This is a partial three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 3 ;

[0045] Figure 6 This is a partial three-dimensional structural diagram of the constant horizontal support device provided in the embodiments of the present invention. Figure 4 ;

[0046] Figure 7 This is a top view of the constant horizontal support device provided in an embodiment of the present invention.

[0047] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure at point BB.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Rotating unit; 2. Coil; 3. Shaft; 4. Measuring unit; 5. Rotating support unit; 6. Z-axis lifting unit; 61. Power component; 62. Lead screw; 63. Nut; 64. Worm gear; 65. Worm wheel; 7. Compensation unit; 71. Pressure sensor; 72. Flange block; 73. First guide seat; 74. Second guide seat; 75. First guide component; 76. Elastic component; 8. Opening and closing lifting unit; 81. Second guide component; 82. Rotating component; 83. Cam plate; 84. Driving component; 85. First locking component; 86. First mounting block; 87. Second mounting block; 88. Second locking component; 9. Y-axis moving unit; 91. Slider; 92. Slide rod; 93. Third locking component. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] like Figures 1 to 8 One specific embodiment of the constant horizontal support device shown includes: a rotation unit 1, a measuring unit 4, a rotation support unit 5, a Z-axis lifting unit 6, and a compensation unit 7.

[0052] like Figure 1 , Figure 2 and Figure 4As shown, the rotating unit 1 is fixedly installed, and one end of the shaft 3 carrying the roll material 2 is placed on the rotating unit 1. The shaft 3 can be an air-expanding shaft. The measuring unit 4 is suitable for real-time measurement of the mass of the roll material 2; the measuring unit 4 can be a roll diameter measuring instrument, which obtains the mass of the roll material 2 by measuring the roll diameter, or it can be a mass sensor, etc. The other end of the shaft 3 carrying the roll material 2 is placed on the rotating support unit 5. The Z-axis lifting unit 6 is suitable for rising and falling along the vertical Z-axis. The compensation unit 7 is supported at the bottom of the rotating support unit 5, and the bottom of the compensation unit 7 is connected to the Z-axis lifting unit 6; the compensation unit 7, based on the mass of the roll material 2 obtained in real time by the measuring unit 4, is driven to rise or fall by the Z-axis lifting unit 6, adjusting the supporting force on the rotating support unit 5 so that it is always equal to half of the sum of the weight of the roll material 2 and the shaft 3. In this embodiment, the mass of the roll material 2 is measured in real time by the measuring unit 4, thereby obtaining half of the sum of the weights of the roll material 2 and the shaft 3. The Z-axis lifting unit 6 rises or falls, driving the compensation unit 7 to rise or fall, adjusting the support force on the rotating support unit 5 so that it is always equal to half of the sum of the weights of the roll material 2 and the shaft 3. The rotating support unit 5 and the rotating unit 1 keep the shaft 3 carrying the roll material 2 in a constant horizontal state. There is no height difference between the two ends of the shaft 3, which prevents the roll material from deviating during subsequent winding and unwinding operations. As the film roll is continuously fed and retracted, although the roll diameter and mass change constantly, the force on the rotating support unit 5 also varies. However, the Z-axis lifting unit 6 rises or falls, causing the compensation unit 7 to rise or fall as well, adjusting the support force on the rotating support unit 5 in real time. This ensures that the force is always equal to half the sum of the weights of the roll 2 and shaft 3, with no height difference between the two ends of shaft 3. This prevents shaft 3 and the roll film from deviating, thus preventing wrinkling and uneven retraction of the roll film, significantly improving printing quality, accuracy, and production efficiency. The horizontality requirement for shaft 3 is generally no greater than 0.1 mm / m, meaning that the height deviation is 0.1 mm within a 1m axial length. When the roll diameter of the film is large, the weight can reach 200 kg, requiring high stability of the horizontal support at both ends.

[0053] Specifically, such as Figure 1 and Figure 8As shown, the compensation unit 7 includes a telescopic assembly and a pressure sensor 71. The top of the telescopic assembly is connected to the rotating support unit 5. The pressure sensor 71 is located at the bottom of the telescopic assembly and is adapted to obtain the value of the support force in real time. The telescopic assembly undergoes elastic deformation when the Z-axis lifting unit 6 rises or falls to compensate for the support force in real time. The pressure sensor 71 can be installed on the flange block 72 at the top of the Z-axis lifting unit 6. In this embodiment, the pressure sensor 71 obtains the support force value in real time, and the telescopic assembly undergoes elastic deformation when the Z-axis lifting unit 6 rises or falls to compensate for the support force in real time, ensuring that the shaft 3 is always in a horizontal state.

[0054] Specifically, such as Figure 8 As shown, the telescopic assembly includes: a first guide seat 73, a second guide seat 74, and a first guide member 75. The top end of the second guide seat 74 is connected to the rotating support unit 5, and the lower end of the second guide seat 74 is movably connected to the first guide seat 73 along the Z-direction. The lower end of the first guide member 75 is connected to the pressure sensor 71; the upper end of the first guide member 75 is movably connected to the second guide seat 74 along the Z-direction; an elastic member 76 is provided between the first guide member 75 and the second guide seat 74. The first guide seat 73 can be a sleeve, and the first guide seat 73 is disposed on the flange block 72; the interior of the second guide seat 74 is vertically continuous; the lower end of the second guide seat 74 is provided with a second annular platform extending outward; the first guide member 75 can be a first guide post; the lower end of the first guide member 75 is provided with a third annular platform extending outward, and the upper end of the first guide member 75 penetrates the interior of the second guide seat 74; an elastic member 76 is provided between the bottom surface of the second annular platform and the top surface of the third annular platform; the elastic member 76 changes the elastic compression force by the rise or fall of the Z-axis lifting unit 6 to compensate the supporting force in real time, and the elastic member 76 can be a disc spring, compression spring, or rubber block, etc. In this embodiment, the elastic member 76 provides a compensating force to compensate the supporting force in real time, ensuring that the shaft 3 is always in a horizontal state.

[0055] like Figure 8As shown, the constant horizontal support device of this application further includes: a second guide member 81, which is a guide post, and is movably connected to the second guide seat 74 along the Z-direction; specifically, the second guide member 81 can be slidably connected within the second guide seat 74. The top end of the second guide member 81 supports and fixes the rotating support unit 5; a first mounting block 86 is fixedly provided on the outer periphery of the second guide member 81, and a second mounting block 87 is fixedly provided on the outer periphery of the second guide seat 74. A lifting adjustment assembly is provided between the second guide seat 74 and the second guide member 81, and the lifting adjustment assembly is driven and connected to the second guide member 81. The lifting adjustment assembly has at least a first state and a second state. When the lifting adjustment assembly is in the first state, the second guide member 81 falls back to the lower limit position, and when the lifting adjustment assembly is in the second state, the second guide member 81 rises to the upper limit position. The second guide member 81 and the lifting adjustment assembly constitute an opening and closing lifting unit 8. This embodiment uses a lifting and adjusting component to quickly switch between the support state and the lowering and avoiding state of the rotating support unit 5, which facilitates the rapid support of the shaft 3 and the lowering and avoiding removal of the shaft 3, significantly improving work efficiency.

[0056] Specifically, such as Figure 5 As shown, the lifting and adjusting assembly includes a rotating component 82, a cam plate 83, and a driving component 84. The rotating component 82 can be a bearing, and the driving component 84 can be a handle. The rotating component 82 is rotatably connected to the second guide component 81; alternatively, the rotating component 82 can be rotatably connected to the second guide component 81 via a first mounting block 86. The cam plate 83 is rotatably connected to the second guide seat 74; alternatively, the cam plate 83 can be rotatably connected to the second guide seat 74 via a second mounting block 87; or the rotating component 82 and the cam plate 83 can be directly mounted on the second guide component 81 and the second guide seat 74, respectively. A curved surface is provided on the top of the cam plate 83, which abuts against the outer periphery of the rotating component 82. The distance between different positions of the curved surface and the center of the cam plate 83 is unequal. One end of the driving component 84 is fixedly connected to the cam plate 83, and the driving component 84 drives the cam plate 83 to rotate, so that different positions of the curved surface of the cam plate 83 abut against the outer periphery of the rotating component 82, thereby driving the second guide component 81 to move along the Z-axis.

[0057] Specifically, such as Figure 5 and Figure 8As shown, the constant level support device of this application further includes a locking assembly. When the locking assembly is locked, it maintains the lifting adjustment assembly in a second state. The locking assembly includes a first locking member 85 and a second locking member 88. The first locking member 85 is slidably connected along the Z-direction within a guide structure provided on the second guide member 81. The second locking member 88 is fixed to one side of the cam plate 83. When the first locking member 85 slides down along the Z-direction and locks with the second locking member 88, the lifting adjustment assembly is in the second state. When the first locking member 85 slides up along the Z-direction and disengages from the second locking member 88, the lifting adjustment assembly is in the first state or the lifting adjustment assembly switches between the first and second states. By rotating the handle, the engagement relationship between the cam plate 83 and the rotating component 82 is switched. The second guide component 81 can move up and down along the second guide seat 74, realizing the lifting and lowering of the rotating support unit 5. The rotating support unit 5 is in a supporting state or a lowered avoidance state. The engagement of the first locking component 85 and the second locking component 88 can play a safety role. That is, when the first locking component 85 is lifted upwards, it moves away from the second locking component 88. At this time, the handle can be rotated. When the first locking component 85 is lowered, it can lock the second locking component 88, blocking the rotation of the handle and preventing the rotating support unit 5 from falling due to accidental contact with the handle when supporting the air expansion shaft. This embodiment specifically defines the structure of the lifting adjustment component and the locking component, realizing the rapid switching between the supporting state and the lowered avoidance state of the rotating support unit 5, facilitating the rapid support of the shaft 3 and the lowered avoidance removal of the shaft 3, and significantly improving work efficiency.

[0058] The cooperation between the rotating component 82 and the cam plate 83 enables the support between the second guide component 81 and the second guide seat 74. The spring enables the support between the first guide component 75 and the first guide seat 73. That is, when the nut 63 moves up and down, it can drive the first guide component 75 to move up and down, which in turn drives the second guide component 81 to move up and down, thus enabling the rotation support unit 5 to move up and down.

[0059] Furthermore, such as Figure 5 and Figure 8As shown, the rotating support unit 5 consists of two spaced-apart rolling bearings; the shaft 3 is located between the two rolling bearings; a first annular platform that contracts inward is provided at the top of the first guide seat 73; a second annular platform that extends outward is provided at the lower end of the second guide seat 74, and the second annular platform is located inside the first guide seat 73; when the shaft 3 is released from the limiting position of the rolling bearings, the distance it moves along the Z direction is the first dimension; that is, the rotating support unit 5 is supported by rolling bearings, the shaft end of the air shaft is placed between the two rolling bearings, and when the air shaft is removed, it is necessary to first lift the air shaft between the two rolling bearings so that the air shaft is higher than the rolling bearings, and this lifting distance is the first dimension. When the shaft 3 disengages from the rotating support unit 5, the gap between the bottom surface of the first annular platform and the top surface of the second annular platform is the second dimension; that is, to avoid jamming, there will be a certain gap between the first guide seat 73 and the second guide seat 74. When the take-up roll diameter is at its maximum, that is, when the mass is at its maximum, as the spring continues to compress, the first guide seat 73 rises to its highest position relative to the second guide seat 74. At this time, the maximum gap between the first guide seat 73 and the second guide seat 74 is the second dimension. When the air expansion shaft is lifted, due to the movement of the air expansion shaft away, the spring no longer bears the weight of the air expansion shaft and the take-up roll. At this time, the spring will return to its original position, thereby driving the second guide seat 74 to move upward by the maximum distance, which is the second dimension. The sum of the first dimension and the second dimension is the third dimension; when the cam plate 83 rotates, the height difference of the rotating member 82 moving up and down along Z is not less than the third dimension. This embodiment ensures that the shaft 3 can be removed by limiting the height difference when the cooperation relationship between the cam plate 83 and the rotating member 82 is switched.

[0060] Furthermore, such as Figure 3 and Figure 4 As shown, the constant horizontal support device described in this application further includes a first sliding member and a second sliding member. The Z-axis lifting unit 6 is disposed on the first sliding member. The second sliding member and the first sliding member are slidably connected relative to each other in the Y direction along the horizontal plane. The first sliding member and the second sliding member constitute a Y-axis moving unit 9. In this embodiment, through the cooperation of the first sliding member and the second sliding member, the first sliding member can drive the Z-axis lifting unit 6 and other units above it to move, facilitating the removal of the shaft 3 and the coil 2.

[0061] Specifically, such as Figure 3 and Figure 4As shown, the first sliding member is a slider 91, and the Z-axis lifting unit 6 is disposed on the slider 91; the second sliding member is a slide rod 92, which passes through the slider 91, and the slider 91 is slidably connected to the slide rod 92; the slider 91 is adapted to move in the Y direction in the horizontal plane when sliding along the slide rod 92. This embodiment, by specifically defining the first and second sliding members, allows the first sliding member to drive the Z-axis lifting unit 6 and other upper units to move, facilitating the removal of the shaft 3 and the coil 2.

[0062] Furthermore, such as Figure 3 , Figure 4 and Figure 6 As shown, the Y-axis moving unit 9 of this application further includes: a third locking member 93; the portion of the slider 91 that contacts the slide rod 92 and extends outwards has a slot; the third locking member 93 is threadedly connected to the two parts forming the slot; the slider 91 has a locked state where the third locking member 93 is threadedly tightened to form the two parts forming the slot; and a horizontally moving state where the third locking member 93 is threadedly loosened to form the two parts forming the slot, allowing the slider 91 to slide freely along the slide rod 92. By releasing the third locking member 93, the upper units can be moved via the slide rod 92 and the guide rail pair, thus achieving the avoidance of obstruction when removing the air expansion shaft.

[0063] Specifically, such as Figure 6 and Figure 7 As shown, the Z-axis lifting unit 6 includes: a power component 61, a self-locking transmission mechanism, a lead screw 62, and a nut 63. The power component 61 is adapted to provide driving force. The self-locking transmission mechanism is connected to the power component 61. The lead screw 62 is arranged along the Z-direction and is connected to the self-locking transmission mechanism; the nut 63 is threadedly connected to the lead screw 62; the flange block 72 is fixedly connected to the nut 63. The power component 61 can be a motor. The Z-axis lifting unit 6 can drive the upper units to rise and fall to match the corresponding support height, and drive the compensation unit 7 to rise and fall to match the mass of the take-up coil in real time and adjust the corresponding support force.

[0064] When the value of pressure sensor 71 is too small, Z-axis lifting unit 6 can move nut 63 upward, compressing the spring. The height of rotating support unit 5 remains unchanged, only the spring is compressed. Flange block 72 drives first guide seat 73 to move upward relative to second guide seat 74, and first guide member 75 moves upward relative to second guide seat 74, compressing the spring. This increases the upward support force through the spring, and the value of pressure sensor 71 will also increase accordingly, achieving real-time force compensation.

[0065] like Figure 6 and Figure 7As shown, the self-locking transmission mechanism is a worm gear transmission mechanism. The motor drives the worm 64 to rotate, the worm 64 drives the worm wheel 65 to rotate, the worm wheel 65 drives the lead screw 62 to rotate, and the nut 63 moves up and down along the Z-guide rail pair to realize the raising and lowering of the rotating support unit 5. Here, the unidirectional power transmission characteristic of the worm gear structure itself is utilized, that is, the transmission direction is from the worm 64 to the worm wheel 65, which can play a self-locking role during support, preventing the rotating support unit 5 from sliding down during support.

[0066] Alternatively, the self-locking transmission mechanism may be a gear transmission mechanism employing a motor-driven brake.

[0067] refer to Figures 1 to 8 This application also proposes a constant horizontal support method, which, using the aforementioned constant horizontal support device, includes the following steps:

[0068] One end of the shaft 3 carrying the roll 2 is placed on the rotating unit 1.

[0069] The other end of the shaft 3 carrying the roll 2 is placed on the rotating support unit 5.

[0070] The measuring unit 4 obtains the mass of the roll 2, and thus obtains half of the sum of the weight of the roll 2 and the shaft 3.

[0071] The Z-axis lifting unit 6 drives the compensation unit 7 to rise or fall, adjusting the support force on the rotating support unit 5 so that half of the sum of the weights of the coil 2 and the shaft 3 is equal to the support force.

[0072] Rotating support unit 5 and rotating unit 1 keep the shaft 3 carrying the roll material 2 in a constant horizontal state. In this embodiment, the mass of the roll material 2 is measured in real time by measuring unit 4, thereby obtaining half of the sum of the weights of the roll material 2 and the shaft 3; the Z-axis lifting unit 6 rises or falls, driving the compensation unit 7 to rise or fall, adjusting the support force on the rotating support unit 5 so that it is always equal to half of the sum of the weights of the roll material 2 and the shaft 3; rotating support unit 5 and rotating unit 1 keep the shaft 3 carrying the roll material 2 in a constant horizontal state; there is no height difference between the two ends of the shaft 3, which prevents the roll material from deviating during subsequent winding and unwinding operations; and during subsequent winding and unwinding operations... As the material is continuously fed and retracted, although the diameter of the entire roll of film changes constantly, the mass of the entire roll of film also changes accordingly, and the force on the rotating support unit 5 changes constantly. However, the Z-axis lifting unit 6 rises or falls, driving the compensation unit 7 to rise or fall, adjusting the support force on the rotating support unit 5 so that it is always equal to half the sum of the weight of the roll of film 2 and the shaft 3. There is no height difference between the two ends of the shaft 3, preventing the shaft 3 and the roll of film from deviating, thereby preventing the roll of film from wrinkling and uneven retraction, significantly improving printing quality, accuracy and production efficiency.

[0073] This application also proposes a device, including: the aforementioned constant level support device. The device described in this application can be a material receiving / unloading device.

[0074] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A constant horizontal support device, characterized in that, include: A rotating unit (1) is fixedly installed, and one end of the shaft (3) that carries the coil (2) is placed on the rotating unit (1); The measuring unit (4) is suitable for real-time measurement of the mass of the roll (2); The other end of the shaft (3) that carries the coil (2) is placed on the rotating support unit (5); Z-axis lifting unit (6), suitable for rising and falling along the vertical Z-axis; The compensation unit (7) is supported at the bottom of the rotating support unit (5), and the bottom of the compensation unit (7) is connected to the Z-axis lifting unit (6). The compensation unit (7) adjusts the supporting force on the rotating support unit (5) by raising or lowering the compensation unit (7) through the Z-axis lifting unit (6) according to the mass of the roll (2) obtained in real time by the measuring unit (4), so that it is always equal to half of the sum of the weight of the roll (2) and the shaft (3).

2. The constant horizontal support device according to claim 1, characterized in that, The compensation unit (7) includes: The telescopic assembly is connected at the top to the rotating support unit (5); A pressure sensor (71) is located at the bottom of the telescopic assembly. The pressure sensor (71) is adapted to obtain the value of the support force in real time. The telescopic assembly undergoes elastic deformation when the Z-axis lifting unit (6) rises or falls, so as to compensate the support force in real time.

3. The constant horizontal support device according to claim 2, characterized in that, The telescopic component includes: First guide seat (73); The second guide seat (74) has its top end connected to the rotating support unit (5) and its lower end movably connected to the first guide seat (73) along the Z direction. The first guide member (75) is connected at its lower end to the pressure sensor (71); the upper end of the first guide member (75) is movably connected to the second guide seat (74) along the Z direction; an elastic member (76) is provided between the first guide member (75) and the second guide seat (74).

4. The constant horizontal support device according to claim 3, characterized in that, Also includes: The second guide member (81) is movably connected to the second guide seat (74) along the Z direction; the top end of the second guide member (81) supports and fixes the rotating support unit (5); a lifting adjustment component is provided between the second guide seat (74) and the second guide member (81), the lifting adjustment component is driven and connected to the second guide member (81), the lifting adjustment component has at least a first state and a second state, when the lifting adjustment component is in the first state the second guide member (81) falls back to the lower limit position, when the lifting adjustment component is in the second state the second guide member (81) rises to the upper limit position.

5. The constant horizontal support device according to claim 4, characterized in that, The lifting adjustment component includes: Rotating component (82) is rotatably connected to the second guide component (81); A cam plate (83) is rotatably connected to a second guide seat (74). A curved surface is provided on the top of the cam plate (83), and the curved surface abuts against the outer periphery of the rotating part (82). The driving member (84) is fixedly connected at one end to the cam plate (83). The driving member (84) drives the cam plate (83) to rotate so that different positions of the curved surface of the cam plate (83) abut against the outer periphery of the rotating member (82), thereby driving the second guide member (81) to move along the Z direction.

6. The constant horizontal support device according to claim 5, characterized in that, It also includes a locking component, which, when locked, maintains the lifting adjustment component in the second state; The locking component includes: The first locking member (85) is slidably connected in the Z direction within the guide structure provided on the second guide member (81); The second locking member (88) is fixed to one side of the cam plate (83); when the first locking member (85) slides down along Z and locks with the second locking member (88), the lifting adjustment assembly is in the second state; when the first locking member (85) slides up along Z and disengages from the second locking member (88), the lifting adjustment assembly is in the first state or the lifting adjustment assembly switches between the first state and the second state.

7. The constant horizontal support device according to claim 5, characterized in that, The rotating support unit (5) consists of two spaced rolling bearings; the shaft (3) is located between the two rolling bearings; a first annular platform that contracts inward is provided at the top of the first guide seat (73); a second annular platform that extends outward is provided at the lower end of the second guide seat (74), and the second annular platform is located inside the first guide seat (73); when the shaft (3) is released from the limiting position of the rolling bearing, the distance it moves along the Z direction is the first dimension; when the shaft (3) is separated from the rotating support unit (5), the gap between the bottom surface of the first annular platform and the top surface of the second annular platform is the second dimension; the sum of the first dimension and the second dimension is the third dimension; when the cam plate (83) rotates, the height difference of the rotating component (82) moving up and down along the Z direction is not less than the third dimension.

8. The constant horizontal support device according to any one of claims 1-7, characterized in that, Also includes: The first sliding member, wherein the Z-axis lifting unit (6) is disposed on the first sliding member; The second slider is slidably connected to the first slider in the Y direction along the horizontal plane.

9. A constant horizontal support method, using the constant horizontal support device according to any one of claims 1-8, characterized in that, include: Place one end of the shaft (3) that carries the roll (2) on the rotating unit (1); The other end of the shaft (3) carrying the roll (2) is placed on the rotating support unit (5); The measuring unit (4) obtains the mass of the roll (2), and then obtains half of the sum of the weights of the roll (2) and the shaft (3); The Z-axis lifting unit (6) drives the compensation unit (7) to rise or fall, adjusting the support force on the rotating support unit (5) so that half of the sum of the weights of the coil (2) and the shaft (3) is equal to the support force. The rotating support unit (5) and the rotating unit (1) keep the shaft (3) that carries the coil (2) in a constant horizontal state.

10. A device, characterized in that, include: The constant horizontal support device according to any one of claims 1-8.

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