Paper reel tension adjusting device for lap former and lap former

Abstract

The invention relates to the technical field of capacitor production equipment, in particular to a paper disc tension adjusting device for a lap former and the lap former, the paper disc tension adjusting device for the lap former comprises a rack, a paper releasing mechanism and a tension adjusting mechanism, the paper releasing mechanism and the tension adjusting mechanism are installed on the rack, the paper releasing mechanism comprises a plurality of paper discs and friction discs, and the paper discs and the friction discs are alternately attached and connected; the tension adjusting mechanism comprises a servo motor and a force applying assembly, and a transmission mechanism is arranged between the servo motor and the force applying assembly so that the servo motor can drive the force applying assembly to move in the axis direction of the paper disc to apply pressure to the paper disc when rotating. The rack is further provided with a control panel in control connection with the servo motor, and the control panel is used for controlling the output torque value of the servo motor so as to adjust the pressure. The paper reel tension adjusting device for the lap former is adopted on the lap former. The tension adjusting device can realize accurate adjustment of tension, is not easily influenced by environment and vibration, and is low in cost.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor production equipment, and particularly relates to a paper disk tension adjusting device for a strip winding machine and a strip winding machine. Background Art

[0002] The capacitor bushing core is the core component of a capacitive bushing, which mainly consists of a conductive rod, an insulating layer, and capacitor screens. The conductive rod is in the central position and is responsible for transmitting current; the insulating layer generally uses materials such as oil paper or adhesive paper and is wrapped around the conductive rod to play an electrical insulation role; the capacitor screens are made of metal foils or metallized papers and are arranged in layers according to specific rules in the insulating layer.

[0003] As a key insulation and current transmission component of high-voltage electrical equipment, on the one hand, the capacitor bushing core can achieve good insulation between the conductive part and the grounded part of the high-voltage electrical equipment, ensuring the safe operation of the equipment; on the other hand, it can stably transmit current to meet the power transmission requirements of the power system. With the continuous development and upgrading of the power system, its operating environment has become more complex, posing more stringent requirements for the performance of the capacitor bushing core.

[0004] Due to its high efficiency and stability, the strip winding process shows important application value in the production field of capacitor bushing cores and has broad development prospects. In the process of producing capacitor bushing cores using the strip winding process, the current conventional operation process is as follows: First, install the paper tape on the paper feeding mechanism of the paper feeding trolley, carefully adjust the paper feeding angle, then manually pull out the paper tape and place it on the winding tube. During the winding operation, it is necessary to ensure that the moving speed of the trolley matches the rotational speed of the main shaft. However, in this process, the stability problem of paper disk tension adjustment is extremely prominent. Due to the unstable adjustment of the paper disk tension, it will have a direct and serious impact on the performance of the capacitor bushing core. For example, it may cause uneven thickness of the insulating layer of the core, thereby reducing its insulation performance and the stability of current transmission. Therefore, how to effectively solve the technical problem of unstable paper disk tension adjustment has become a key direction that needs to be overcome by those skilled in the art.

[0005] Based on the above problems, the Chinese invention patent with the authorization announcement number CN103625016B discloses a capacitive bushing strip winding machine, which includes a paper feeding trolley. A paper feeding mechanism for a disc-shaped paper tape and a paper tape tension detection sensor are arranged on the paper feeding trolley. The paper feeding mechanism includes at least six disc-shaped paper tapes and disc-shaped aluminum foil tapes arranged on a bracket. The disc-shaped paper tapes and disc-shaped aluminum foil tapes are connected to the bracket through a detachable central shaft. A paper tape tension control mechanism for clamping the edge of the disc-shaped paper tape is arranged below the disc-shaped paper tapes and disc-shaped aluminum foil tapes. The paper tape tension control mechanism includes an electro-hydraulic proportional solenoid valve and a clamping cylinder. The tension situation of the disc-shaped paper tape can be detected in real time through this tension detection sensor. The electro-hydraulic proportional solenoid valve dynamically adjusts the valve opening according to the information fed back by the sensor to change the output force of the clamping cylinder, so as to ensure the stable output of the paper tape tension. Although the above solution has high control accuracy and response speed, there are still disadvantages. First, the system is relatively complex, involving precision components, increasing the equipment cost and maintenance difficulty. After long-term operation, the wear or failure of precision components may affect the stability of the system; the tension sensor is easily affected by the environment and vibration, resulting in inaccurate data; although the closed-loop feedback control can improve the accuracy, it depends on real-time data acquisition, and delays or failures will cause tension fluctuations and affect the tension control. Summary of the Invention

[0006] The purpose of the present invention is to provide a paper disc tension adjusting device for a strip winding machine to solve the technical problems of high cost and easy influence of adjustment accuracy by the environment and vibration of the existing paper tape tension adjusting device; the purpose of the present invention is also to provide a strip winding machine to produce qualified capacitive bushing cores.

[0007] To solve the above problems, the paper disc tension adjusting device for a strip winding machine provided by the present invention adopts the following technical solutions: A paper disc tension adjusting device for a strip winding machine includes a frame, a paper feeding mechanism and a tension adjusting mechanism installed on the frame. The paper feeding mechanism includes a plurality of paper discs and friction discs, and the plurality of paper discs and friction discs are alternately attached and connected; the tension adjusting mechanism includes a servo motor and a force applying component. A transmission mechanism is arranged between the servo motor and the force applying component, so that when the servo motor rotates, it can drive the force applying component to move along the axis direction of the paper disc to apply pressure to the paper disc; A control panel controlledly connected to the servo motor is further arranged on the frame. The control panel is used to control the output torque value of the servo motor to adjust the pressure magnitude.

[0008] The beneficial effects of the paper disc tension adjustment device for the strip winding machine are as follows: the present invention adopts a tension adjustment mechanism with a simpler structure and high efficiency. The servo motor can convert the output torque with the clamping force of the output paper disc through a program algorithm, and then the operator can adjust the output torque of the servo motor on the control panel to drive the force-applying component to achieve precise adjustment of the clamping force of the paper disc, effectively avoiding the deviation or damage of the paper disc caused by uneven force or improper operation, ensuring the continuity and stability of the paper tape during the conveying process, ensuring the uniform winding and tight fit of the capacitor sleeve core, and thus improving the performance and service life of the capacitor. The present invention reduces the dependence on external factors, that is, it no longer relies on tension sensors to monitor the tension of the paper tape in real time, but directly acts on the paper disc through a mechanical structure such as a friction disc to ensure the stable output of the tension, so that the entire device has better vibration resistance and durability, and can maintain stable adjustment performance under different environments; compared with traditional precision sensors and complex control systems, the present invention reduces the number and complexity of precision components, and has lower use and maintenance costs.

[0009] Furthermore, the force-applying component includes a power output member, a connecting member and a force-applying member. The transmission mechanism is connected between the servo motor and the power output member. The power output member and the force-applying member are parallel to the axis of the paper tray. The servo motor is located on the inner side of the frame. The connecting member is located on the outer side of the frame and connects the power output member and the force-applying member. The force-applying member and the frame are guided and matched in the axial direction of the paper tray.

[0010] Beneficial effects: The installation space inside and outside the frame can be fully utilized, making the structure of the entire device more compact and smaller in size; in addition, the force-applying member cooperates with the frame guide to ensure the linearity of the force-applying member and ensure stable transmission of the clamping force.

[0011] Furthermore, the servo motor is provided with two groups symmetrically about the axis of the paper tray, the power output members are provided with two symmetrically about the axis of the paper tray and are respectively connected to the upper and lower ends of the connecting member, the force-applying members are provided with two symmetrically about the axis of the paper tray and are located between the two power output members, and a pressure plate is connected between the two force-applying members.

[0012] Beneficial effects: On the one hand, it can balance the applied force, that is, it can apply the same clamping force on both sides of the paper tray simultaneously. This symmetric arrangement enables the pressing plate to evenly press the paper tray, making the pressing force received by the paper tray evenly distributed, avoiding deformation of the paper tray or uneven paper tape tension caused by excessive force on one side. Additionally, the bilateral symmetric setting can ensure that the paper tray always remains in a stable central position without deviation. On the other hand, when two sets of servo motors are used, even if one set fails (such as motor damage, jamming of transmission components, etc.), the other set can still continue to work, ensuring the normal operation of the entire system. This provides higher reliability and safety for the production process and reduces the downtime caused by equipment failures. The symmetrically arranged servo motors can offset the vibrations generated by each other to a certain extent, improving the vibration resistance performance of the entire device.

[0013] Further, the transmission mechanism is a lead screw nut transmission mechanism, and the servo motor is self-equipped with a reducer. The servo motor, the transmission mechanism, and the power output member together form a servo electric cylinder.

[0014] Beneficial effects: The overall structure is compact and the installation space is small. By using a lead screw nut transmission mechanism, the transmission accuracy is high, and it can accurately control the moving distance of the power output member, thereby accurately controlling the pressure applied by the force applying member on the paper tray.

[0015] Further, guiding and limiting members are installed at the positions corresponding to each force applying member on the frame. The force applying member is in sliding cooperation with the guiding and limiting members. The guiding and limiting members and the connecting member are located on the same side of the frame. The guiding and limiting members are used for stop cooperation with the connecting member to limit the movement stroke of the force applying member.

[0016] Beneficial effects: The guiding and limiting members can not only support the force applying member, but also ensure the linearity of the movement of the force applying member. At the same time, they limit the movement formation of the force applying member to protect the connecting member.

[0017] Furthermore, a plurality of paper trays and friction discs are sleeved on a central shaft. At positions corresponding to both ends of the central shaft on the frame, notch grooves for placing and removing the central shaft are respectively provided; on the outer side of the frame, a first locking assembly is provided at a position corresponding to one of the notch grooves, and a second locking assembly is provided at a position corresponding to the other notch groove. The second locking assembly is located between two guiding and limiting members; the first locking assembly includes a support seat, a positioning pin, and a support sleeve. The support seat is fixed on the frame. A through hole for the central shaft to pass through is provided on the support seat. The support sleeves are provided on both the upper and lower sides of the through hole. The positioning pin passes through the two support sleeves and through a perforation on the central shaft to fix one end of the central shaft; the second locking assembly includes a fixed clamping block, a movable clamping block, a locking rod, and a locking pin. The fixed clamping block is installed on the frame. The movable clamping block is hinged to the fixed clamping block. Arc-shaped clamping grooves for clamping the central shaft are provided on both the movable clamping block and the fixed clamping block. The locking rod is connected to the movable clamping block. An avoidance groove for avoiding the locking rod is provided on the fixed clamping block. The locking pin is arranged at the avoidance groove and is used to insert into the locking rod so that the two arc-shaped clamping grooves clamp the other end of the central shaft.

[0018] Beneficial effects: The structures of the first locking assembly and the second locking assembly are simple. After being installed on the frame, they will not interfere with other structures, which is convenient for operators to operate and makes the installation and disassembly of the paper trays and friction discs on the frame more convenient.

[0019] Furthermore, a manual adjustment mechanism is further provided on the frame. The manual adjustment mechanism includes a mounting member and a plurality of adjustment members. The mounting member is installed on the frame. The adjustment members are arranged in groups and the number of groups is the same as the number of the friction discs. Two adjustment members in each group are both threadedly connected to the mounting member and are respectively located on both axial sides of the friction disc.

[0020] Beneficial effects: By manually adjusting the adjustment members, the positions of the respective friction discs can be finely adjusted to achieve the purpose of making the tension received by each paper tray uniform.

[0021] Furthermore, the mounting member is detachably connected to the frame.

[0022] Beneficial effects: Different mounting members can be replaced to match different numbers of friction discs, improving the versatility of the entire device.

[0023] Furthermore, the mounting member is a mounting rod with an external thread section. An installation opening for placing and removing the mounting rod is provided on the frame. The installation opening has an inclined section and a vertical section; positioning shoulders for blocking and cooperating with the frame are respectively provided at both ends of the mounting rod. Both positioning shoulders are located inside the frame to limit the axial movement of the mounting rod.

[0024] Beneficial effects: Facilitate the positioning installation and disassembly of the mounting member.

[0025] The technical solution of the coiling machine provided by the present invention is: The slitting and coiling machine includes the paper disk tension adjusting device in any of the above technical solutions.

[0026] Advantages of the slitting and coiling machine: By precisely controlling the tension of the paper tape, the slitting and coiling machine avoids the problems of paper tape breakage caused by excessive tension and paper tape slack caused by insufficient tension. This ensures that the paper tape can be continuously and stably conveyed onto the coiling tube, reducing production interruptions and the rejection rate. The stable tension helps to achieve uniform winding of the capacitor bushing core, ensuring that each layer of the paper tape fits tightly, improving the compactness and consistency of the finished product. In addition, the slitting and coiling machine can operate more efficiently. The operator only needs to set parameters through the control panel to complete complex tension adjustment tasks, reducing human intervention and improving work efficiency. The servo motor can quickly respond to operation instructions, shortening the time difference from issuing the instruction to actual execution, meeting the requirements of high-speed production lines. The slitting and coiling machine no longer relies on sensors, improving the environmental adaptability of the slitting and coiling machine, reducing the use of precision components, and lowering costs. Description of the Drawings

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the paper disk tension adjusting device for the slitting and coiling machine of the present invention; Figure 2 It is Figure 1 the front view; Figure 3 It is a three-dimensional structural schematic diagram of the frame in the paper disk tension adjusting device for the slitting and coiling machine of the present invention; Figure 4 It is a three-dimensional schematic diagram of the tension adjusting mechanism in the paper disk tension adjusting device for the slitting and coiling machine of the present invention; Figure 5 It is Figure 4 the front view; Figure 6 It is a matching schematic diagram between the paper feeding mechanism and the manual adjusting mechanism in the paper disk tension adjusting device for the slitting and coiling machine of the present invention; Figure 7 It is Figure 6 the front view; Figure 8 It is a structural schematic diagram of the first locking component in the paper disk tension adjusting device for the slitting and coiling machine of the present invention; Figure 9 It is a structural schematic diagram of the second locking component in the paper disk tension adjusting device for the slitting and coiling machine of the present invention.

[0028] Description of the reference numerals: 1. Frame; 11. Left side plate; 12. Right side plate; 13. Rear side plate; 131. Avoidance opening; 14. Bottom plate; 15. Top plate; 16. Notch groove; 17. Installation opening; 2. Control panel; 3. Paper feeding mechanism; 31. Central axis; 311. Positioning shoulder; 32. Paper tray; 33. Friction disc; 34. Pressing disc; 4. Tension adjusting mechanism; 41. Servo electric cylinder; 42. Power output member; 43. Tension connecting plate; 44. Guide limiting member; 45. Force applying member; 46. Pressing plate; 47. Ball eye joint; 48. Servo motor; 5. Manual adjusting mechanism; 51. Screw; 52. Adjusting nut; 6. First locking assembly; 61. Support seat; 62. Support sleeve; 63. Positioning pin; 7. Second locking assembly; 71. Fixed clamping block; 72. Movable clamping block; 73. Locking rod; 74. Avoidance groove; 75. Arc-shaped clamping groove; 76. Locking pin; 77. Circular handle; 78. Hinge shaft. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0030] Next, with reference to several representative embodiments of the present invention, the principles and spirits of the present invention will be elaborated in detail.

[0031] An embodiment of the paper tray tension adjusting device for a strip winding machine provided by the present invention: As Figure 1 shown, the paper tray 32 tension adjusting device for a strip winding machine includes a frame 1 and a paper feeding mechanism 3, a tension adjusting mechanism 4, a manual adjusting mechanism 5 and a control panel 2 installed on the frame 1.

[0032] Specifically, as Figure 3 shown, the frame 1 includes a left side plate 11, a top plate 15, a rear side plate 13, a right side plate 12 and a bottom plate 14 connected together. The left side plate 11, the top plate 15, the rear side plate 13, the right side plate 12 and the bottom plate 14 enclose an installation cavity for installing the paper feeding mechanism 3. The rear side plate 13 is provided with an avoidance opening 131 that communicates with the installation cavity and is used to avoid the paper feeding mechanism 3. The control surface is installed on the top plate 15 to facilitate the operator to monitor and adjust the working state of the device at any time.

[0033] As Figure 6 and Figure 7As shown in the figure, the paper feeding mechanism 3 includes a central shaft 31, and a plurality of paper trays 32 and friction discs 33 sleeved on the central shaft 31. The plurality of paper trays 32 and friction discs 33 are alternately and adhesively connected. In this embodiment, six paper trays 32 and six friction discs 33 are introduced. Of course, the number of paper trays 32 and friction discs 33 is not specifically limited, and it only needs to match the size of the actual rack 1. A ring-shaped baffle matching the central shaft 31 is connected to the central shaft 31. Before installing the paper trays 32 and friction discs 33, a pressure plate 34 is first inserted through the central shaft 31. The pressure plate 34 is in contact with the ring-shaped baffle, playing a role of preliminary positioning and support. Immediately afterwards, the friction discs 33 and paper trays 32 are alternately and adhesively placed in sequence. After all the paper trays 32 and friction discs 33 are placed, another pressure plate 34 is placed as the fixing and pressing at the end. Subsequently, the whole is firmly fixed by using a lock nut.

[0034] As Figure 2 and Figure 3 shown in the figure, notch grooves 16 for placing and removing both ends of the central shaft 31 are provided on the left side plate 11 and the right side plate 12. A first locking assembly 6 for fixing the left end of the central shaft 31 is provided on the left side of the left side plate 11, and a second locking assembly 7 for fixing the right end of the central shaft 31 is provided on the right side of the right side plate 12.

[0035] As Figure 8 shown in the figure, the first locking assembly 6 includes a support base 61, a positioning pin 63, and a support sleeve 62. The support base 61 is fixed on the left side plate 11 by bolts. A through hole for the left end of the central shaft 31 to pass through is provided on the support base 61. Support sleeves 62 are provided on both the upper and lower sides of the through hole. A through hole communicating with the support sleeves 62 up and down is provided on the support base 61. The positioning pin 63 passes through the through hole, the two support sleeves 62, and at the same time passes through the through hole on the central shaft 31 to fix the left side of the central shaft 31.

[0036] As Figure 9As shown in the figure, the second locking component 7 includes a fixed clamping block 71, a movable clamping block 72, a locking rod 73 and a locking pin 76. The fixed clamping block 71 is fixed on the right side plate 12 by bolts. The bottom end of the movable clamping block 72 is hinged to the fixed clamping block 71 through a hinge shaft 78. Arc-shaped clamping grooves 75 for clamping the central shaft 31 are provided on both the movable clamping block 72 and the fixed clamping block 71. The locking rod 73 is connected to the movable clamping block 72. The end of the locking rod 73 is provided with a circular handle 77 for people to pull. A locking hole is provided on the locking rod 73, and the axis of the locking hole is perpendicular to the locking rod 73. A relief groove 74 for avoiding the locking rod 73 is provided at the top of the fixed clamping block 71, and the locking pin 76 vertically passes through the relief groove 74. When the movable clamping block 72 rotates to a position where the two arc-shaped clamping grooves 75 face each other, the locking rod 73 is located in the relief groove 74. At this time, the locking pin 76 can be inserted into the locking hole of the locking rod 73, so that the movable clamping block 72 can be connected to the fixed clamping block 71, and then the two arc-shaped clamping grooves 75 clamp the right end of the central shaft 31, realizing the installation of the entire paper feeding mechanism 3 and ensuring that the paper tray 32 will not be displaced or fall off on the machine frame 1 due to vibration or external force during operation.

[0037] In this embodiment, as Figure 4 and Figure 5 shown, the tension adjusting mechanism 4 includes a servo motor 48, a force applying component and a transmission mechanism arranged between the servo motor 48 and the force applying component.

[0038] Among them, two groups of servo motors 48 are symmetrically arranged up and down about the axis of the paper tray 32, and are respectively fixed on the lower side of the top plate 15 and the upper side of the bottom plate 14. The force applying component includes a power output member 42, a connecting member and a force applying member 45. Both the power output member 42 and the force applying member 45 are parallel to the axis of the paper tray 32. In this embodiment, the power output member 42 is a push rod, the connecting member is a U-shaped tension connecting plate 43, and the force applying member 45 is a sliding rod. In this embodiment, two power output members 42 are symmetrically arranged up and down about the axis of the paper tray 32. The right ends of the two power output members 42 are respectively connected to the upper and lower ends of the connecting member through fish-eye joints 47. The connecting member is located on the right side of the right side plate 12. Two force applying members 45 are symmetrically arranged up and down about the axis of the paper tray 32 and are located between the two power output members 42. The second locking component 7 is entirely located between the two force applying members 45. The left ends of the two force applying members 45 are jointly connected with a semi-circular pressing plate 46. The pressing plate 46 is used to press on the right end pressing disc 34, thereby applying pressure to the paper tray 32 to make the pressing force received by the paper tray 32 evenly distributed.

[0039] A guiding and limiting member 44 is respectively provided on the right side plate 12 at positions corresponding to the two force applying members 45. In this embodiment, the guiding and limiting member 44 is a flange seat, which is fixed on the right side of the right side plate 12 by bolts. The force applying member 45 is in sliding fit with the guiding and limiting member 44. During the moving stroke of the force applying member 45, the guiding and limiting member 44 can be in blocking fit with the connecting member.

[0040] A transmission mechanism is provided between each servo motor 48 and the corresponding power output member 42. In the present embodiment, the transmission mechanism is a screw-nut transmission mechanism, and each servo motor 48 is provided with a reducer. In actual production, the servo motor 48, the transmission mechanism and the power output member 42 can form a servo electric cylinder 41 together. The servo electric cylinder 41 is a common structure in the prior art, and has a screw connected to the servo motor 48 and a slider threadedly connected to the screw. The power output member 42 is fixed to the slider. When the servo motor 48 is working, the slider can move horizontally, thereby driving the power output member 42 to move, thereby realizing the movement of the force-applying member 45. The movable stroke of the power output member 42 is the same as the distance between the pressure plate 46 and the right side plate 12.

[0041] The manual adjustment mechanism 5 is arranged below the top plate 15 and above the paper placing mechanism 3. In this embodiment, the manual adjustment mechanism 5 includes a mounting member and a plurality of adjustment members. The mounting member is a screw rod 51, and the adjustment member is an adjustment nut 52. The adjustment nut 52 is threadedly connected to the screw rod 51. The adjustment nuts 52 are arranged in groups, and the number of groups is the same as the number of friction discs 33. The two adjustment nuts 52 in each group are respectively located on both sides of the axial direction of the friction disc 33.

[0042] The left plate 11 and the right plate 12 are both provided with a mounting opening 17 for placing and removing the mounting member, and the mounting opening 17 has an inclined section and a vertical section. The left and right ends of the mounting member are respectively provided with positioning shoulders 311 that cooperate with the left plate 11 and the right plate 12 to stop. The two positioning shoulders 311 are respectively located on the right side of the left plate 11 and the left side of the right plate 12. After the mounting member is placed into the vertical section along the inclined section, the two positioning shoulders 311 can limit the axial left and right movement of the mounting rod.

[0043] Before actual use, utilize the programming function of the servo motor 48 to perform conversion between the torque output of the servo motor 48 and the pressure of the pressing plate 46 on the paper tray 32 through programming settings. After installing and fixing the paper feeding mechanism 3, the operator inputs the tension value on the control panel 2, and the total tension value can be displayed on the display screen of the control panel 2. At this time, the servo motor 48 will work according to the converted output torque, causing the force applying member 45 to drive the pressing plate 46 to act on the paper tray 32 to apply pressure, so that the paper tray 32 is maintained in the required tension state. Compared with the traditional manual adjustment or mechanical adjustment method, this device greatly simplifies the operation process, reduces the operation difficulty, enables the operator to easily achieve precise control of the tension of the paper tray 32, and improves the work efficiency. By precisely adjusting the clamping force, the high stability of the paper tray 32 during rotation or operation is ensured. This design effectively avoids the deviation or damage of the paper tray 32 caused by uneven force or improper operation, thereby ensuring the continuity and stability of the paper tape during transportation, ensuring the uniform winding and tight fitting of the capacitor sleeve core, and further improving the performance and service life of the capacitor.

[0044] It should be noted that during the operation process, it is inevitable that there will be tension fluctuations. The tension fluctuations will be directly reflected in the tightness of the paper during the winding process. There is a corresponding diameter measuring device on the strip winding machine. During the paper winding process, there is a standard value for the thickness of each layer. If the diameter measuring device detects that the thickness is too large, it proves that the paper is loose. At this time, the operator can input a larger tension value on the control panel 2 to ensure the tension of the paper and guarantee the winding quality.

[0045] It should be noted that the power output member is not limited to the rod-shaped form, and can also be in the form of a block or other special-shaped parts, as long as the power transmission can be achieved; the connecting member is not limited to the plate-shaped form, and can also be in the form of a U-shaped rod structure or other special-shaped structures, etc., as long as it can satisfy connecting the two power output members and the two force applying members; the force applying member is not limited to the rod-shaped form, and can also be in the form of a block structure or a combination of a block and a rod, etc.

[0046] In addition, the transmission mechanism is not limited to the lead screw-nut transmission mechanism in this embodiment. In other embodiments, a gear-rack transmission mechanism can also be used. At this time, the output end of the servo motor is connected to the gear, the rack meshes with the gear and is in guiding sliding fit with the top plate, and the power output member is connected to the rack.

[0047] The guiding and limiting member is not limited to the flange seat in this embodiment. In other embodiments, a guiding sleeve, a guiding block with a set thickness, etc. can also be used.

[0048] In other embodiments, when the stable adjustment of the tension can be achieved by using a set of servo motors, only one set of servo motors can be provided. At this time, one power output member can be provided, and two pressing members are still symmetrically arranged about the center axis to ensure the uniform transmission of the pressing force between the paper discs.

[0049] Embodiment of the coiler of the present invention: The coiler includes a tension adjusting device, and the structure of the tension adjusting device is the same as that in the embodiment of the paper disc tension adjusting device for the coiler described above, and will not be described in detail herein.

[0050] According to the above description of this specification, those skilled in the art can also understand the following terms used, such as the terms indicating the orientation or position relationship, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above orientation or position relationship terms cannot be understood or interpreted as a limitation to the solution of the present invention.

[0051] In addition, in the description of this specification, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A paper tray tension adjustment device for a strip winding machine, comprising a frame, a paper placing mechanism mounted on the frame and a tension adjustment mechanism, characterized in that: The paper placing mechanism comprises a plurality of paper trays and friction trays, and the plurality of paper trays and friction trays are alternately attached and connected; the tension adjusting mechanism comprises a servo motor and a force applying component, and a transmission mechanism is provided between the servo motor and the force applying component, so that the servo motor can drive the force applying component to move along the axis direction of the paper tray to apply pressure to the paper tray when rotating; The frame is also provided with a control panel connected to the servo motor, and the control panel is used to control the output torque value of the servo motor to adjust the pressure.

2. A paper disc tension adjustment device for a strip winding machine according to claim 1, characterized in that: The force-applying component includes a power output member, a connecting member and a force-applying member. The transmission mechanism is connected between the servo motor and the power output member. The power output member and the force-applying member are parallel to the axis of the paper tray. The servo motor is located on the inner side of the frame. The connecting member is located on the outer side of the frame and connects the power output member and the force-applying member. The force-applying member and the frame are guided and matched in the axial direction of the paper tray.

3. A paper disc tension adjustment device for a strip winding machine according to claim 2, characterized in that: The servo motors are arranged in two groups symmetrically about the axis of the paper tray, the power output members are arranged in two groups symmetrically about the axis of the paper tray and are respectively connected to the upper and lower ends of the connecting member, the force applying members are arranged in two groups symmetrically about the axis of the paper tray and are located between the two power output members, and a pressure plate is connected between the two force applying members.

4. A paper disc tension adjustment device for a strip winding machine according to claim 2 or 3, characterized in that: The transmission mechanism is a screw-nut transmission mechanism, the servo motor is provided with a reducer, and the servo motor, the transmission mechanism and the power output member together form a servo electric cylinder.

5. The paper disc tension adjustment device for a strip winding machine according to claim 3, characterized in that: A guide limiter is installed on the frame at a position corresponding to each force-applying member. The force-applying member and the guide limiter are slidably matched. The guide limiter and the connecting member are located on the same side of the frame. The guide limiter is used to cooperate with the connecting member to limit the movable stroke of the force-applying member.

6. A paper disk tension adjustment device for a strip winding machine according to claim 5, characterized in that: A plurality of paper plates and friction plates are sleeved on a central shaft, and notches for placing and removing the central shaft are respectively provided at positions corresponding to both ends of the central shaft on the frame; a first locking assembly is provided at a position corresponding to one of the notches on the outer side of the frame, and a second locking assembly is provided at a position corresponding to the other notch on the outer side of the frame, and the second locking assembly is located between the two guide limiters; the first locking assembly includes a support seat, a positioning pin and a support sleeve, the support seat is fixed on the frame, a through hole for the central shaft to pass through is provided on the support seat, and the support sleeve is provided at both upper and lower sides of the through hole The support sleeve and the positioning pin pass through the two support sleeves and through the through hole on the central shaft to fix one end of the central shaft; the second locking assembly includes a fixed card block, a movable card block, a locking rod and a locking pin, the fixed card block is installed on the frame, the movable card block is hingedly connected to the fixed card block, and the movable card block and the fixed card block are both provided with an arc-shaped groove for clamping the central shaft, the locking rod is connected to the movable card block, and the fixed card block is provided with an avoidance groove for avoiding the locking rod, and the locking pin is arranged at the avoidance groove, which is used to be inserted into the locking rod so that the two arc-shaped grooves clamp the other end of the central shaft.

7. A paper disk tension adjustment device for a strip winding machine according to claim 1, characterized in that: The frame is also provided with a manual adjustment mechanism, which includes a mounting member and a plurality of adjustment members. The mounting member is installed on the frame, and the adjustment members are arranged in groups and the number of groups is the same as the number of the friction discs. The two adjustment members in each group are threadedly connected to the mounting member and are respectively located on both axial sides of the friction disc.

8. A paper tray tension adjustment device for a strip winding machine according to claim 7, characterized in that: The mounting piece is detachably connected to the frame.

9. A paper disc tension adjustment device for a strip winding machine according to claim 8, characterized in that: The mounting piece is a mounting rod with an external threaded section. The frame is provided with a mounting opening for placing and removing the mounting rod, and the mounting opening has an inclined section and a vertical section. Both ends of the mounting rod are respectively provided with positioning shoulders that cooperate with the frame stop, and the two positioning shoulders are both located on the inner side of the frame to limit the axial movement of the mounting rod.

10. A strip lap machine, characterized in that: It comprises a paper disc tension adjustment device for a strip winding machine as described in any one of claims 1-9.

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