A tension measuring device

Abstract

The embodiment of the application provides a tension measuring device, and relates to the field of battery production equipment industry.The tension measuring component comprises a supporting seat, a tension sensor and a roller shaft component.The roller shaft component comprises a tension roller, two bearings and a supporting piece, the supporting piece is connected with the supporting seat, one end of the supporting piece is connected with the tension sensor, the two ends of the supporting piece in the axial direction are provided with bearing mounting spaces for assembling the two bearings respectively, and the two ends of the tension roller are connected with the two bearings respectively.The tension roller is used for contacting with a material line and is provided with a through hole extending along the axial direction of the tension roller.The gravity is reduced, the inertia of the tension roller is also reduced, the influence of the tension roller on the material line is smaller when the tension roller rotates, the influence of the inertia on the material line tension when the tension roller is driven to rotate is reduced, the precision of the material line tension measurement is improved, and the material line tension at any position in the whole machine material line can be conveniently measured through the magnetic attraction piece.

Description

Technical Field

[0001] This invention relates to the field of battery production equipment, and more specifically, to a tension measuring device. Background Technology

[0002] In wire conveying equipment, such as battery winding machines and textile machines, tension measuring devices are needed to measure the tension of the wire during the wire conveying process from winding to unwinding. Currently, the principle of tension measuring devices is mainly to calculate the tension by comparing the pressure value measured on the tension measuring device with the angle of the wire, or by calculating the tension magnitude by comparing the friction force of the wire on the tension measuring device with the torque of the tension measuring device itself.

[0003] The inventors discovered that the weight and inertia of the tension measuring device itself affect the accuracy of tension measurement, thus impacting the precision of the tension measurement results for the material thread. Summary of the Invention

[0004] The object of the present invention includes, for example, providing a tension measuring device that can improve the accuracy of the tension measuring results of the tension measuring device for the material line.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a tension measuring device, comprising:

[0007] Support base;

[0008] Tension sensor, the tension sensor is connected to the support base;

[0009] The roller assembly includes a tension roller, two bearings, and a support member. The support member is connected to a support base, and one end of the support member is connected to a tension sensor. The two ends of the support member along the axial direction have bearing mounting spaces for assembly with the two bearings, respectively. The two ends of the tension roller are connected to the two bearings, respectively. The tension roller is used to contact the material line and has through holes extending along its own axial direction.

[0010] In an optional embodiment, the support includes a first support end, a connecting portion, and a second support end connected in sequence. The first support end or the second support end is connected to a tension sensor. Both the first support end and the second support end have bearing mounting spaces. The connecting portion has an opening extending along its own axial direction, and at least part of the tension roller is located in the opening.

[0011] In an optional embodiment, the tension roller is further provided with two shoulders for abutting against the bearing.

[0012] In an optional embodiment, the tension measuring device further includes two sleeves, which are respectively disposed in the bearing mounting space and whose end walls abut against the bearing. The end walls of the sleeves also have through holes for the tension roller to pass through, and the tension roller can rotate relative to the sleeves along its own axis.

[0013] In an optional embodiment, the support includes a body and a magnetic component connected to the body, the magnetic component being used for connection to a winding machine.

[0014] In an optional implementation, the body and the magnetic component are detachably connected.

[0015] In an optional embodiment, the main body has a plurality of first mating holes, and the magnetic component has a plurality of second mating holes corresponding to the plurality of first mating holes. Either the first mating hole or the second mating hole is a threaded hole, and the main body and the magnetic component are connected by threaded fasteners.

[0016] In an optional embodiment, the tension measuring device further includes a first end fixing member and a second end fixing member, the second end fixing member being connected to the tension sensor, the first end fixing member being connected to the end of the support member away from the tension sensor, and the second end fixing member being connected to the end of the support member close to the tension sensor.

[0017] In an optional embodiment, the first end fixing member is threadedly connected to the support member, and the second end fixing member is connected to the support member via a pin and a pin hole.

[0018] In an optional embodiment, the tension measuring device further includes two auxiliary roller assemblies spaced apart along a first direction. Each auxiliary roller assembly includes an auxiliary body and an auxiliary roller rotatably connected to the auxiliary body. The auxiliary body is disposed on a support base. The axes of the two auxiliary rollers are parallel to the axis of the tension roller. The tension roller is located on the axis of symmetry of the two auxiliary rollers in the first direction. The axes of the two auxiliary rollers are located on an auxiliary plane. The axis of the tension roller is parallel to the auxiliary plane.

[0019] The beneficial effects of the embodiments of the present invention include, for example, a tension measurement component provided by the embodiments of the present invention, comprising a support base, a tension sensor, and a roller assembly. The roller assembly includes a tension roller, two bearings, and a support member. The support member is connected to the support base, and one end of the support member is connected to the tension sensor. The support member has bearing mounting spaces at both ends along the axial direction for assembly with the two bearings, and both ends of the tension roller are connected to the two bearings respectively. The tension roller is used to contact the material line and has a through hole extending along its own axial direction. The non-solid structure of the tension roller can effectively reduce its own weight, thereby reducing the influence of its own gravity on the tension measurement of the material line. It also reduces the inertia of the tension roller, so the influence of the tension roller on the material line when rotating is smaller. Therefore, reducing the influence of the inertia on the tension of the material line when rotated by the material line can improve the accuracy of the tension measurement. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a tension measuring device provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a tension measuring device during tension measurement, provided in an embodiment of the present invention.

[0023] Figure 3 for Figure 1 Send a larger image from point A in the middle;

[0024] Figure 4 This is a cross-sectional view of the roller assembly provided in an embodiment of the present invention in a preset direction;

[0025] Figure 5 This is a schematic diagram of the structure of the support member provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a tension measuring device with an auxiliary roller assembly provided in another embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of a tension measuring device with an auxiliary roller assembly, provided as another embodiment of the present invention, during tension measurement.

[0028] Icons: 1-Tension measuring device; 10-Support base; 11-Body; 12-Magnetic component; 20-Tension sensor; 30-Roller assembly; 31-Tension roller; 311-Shoulder; 32-Bearing; 33-Support component; 331-First support end; 332-Second support end; 333-Connecting part; 3331-Opening; 334-Bearing mounting space; 40-Sleeve; 50-First end fixing component; 60-Second end fixing component; 70-Auxiliary roller assembly; 71-Auxiliary roller; 72-Auxiliary body; 2-Material line. Detailed Implementation

[0029] 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, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0035] In wire conveying equipment, such as battery winding machines and textile machines, tension measuring devices are needed to measure the tension of the wire during the wire conveying process from winding to unwinding. Currently, the principle of tension measuring devices is mainly to calculate the tension by comparing the pressure value measured on the tension measuring device with the angle of the wire, or by calculating the tension magnitude by comparing the friction force of the wire on the tension measuring device with the torque of the tension measuring device itself.

[0036] The inventors discovered that the weight of the tension measuring device itself affects the accuracy of the tension measurement, thus impacting the accuracy of the tension measurement results for the material thread.

[0037] To address the aforementioned problems, this invention provides a tension measuring device that can improve the accuracy of tension measurement results for material lines.

[0038] The following describes in detail, with reference to the accompanying patent drawings, the specific structure of a tension measuring device provided by an embodiment of the present invention and the corresponding technical effects it brings.

[0039] Please refer to Figures 1-4 The tension measuring device 1 provided in this embodiment includes a support base 10, a tension sensor 20, and a roller assembly.

[0040] The roller assembly 30 includes a tension roller 31, two bearings 32, and a support member 33. The support member 33 is connected to the support base 10, and a tension sensor 20 is connected to one end of the support member 33. The two ends of the support member 33 along the axial direction have bearing mounting spaces 334 for assembling with the two bearings 32, respectively. The two ends of the tension roller 31 are respectively connected to the two bearings 32. The tension roller 31 is used to contact the material line 2 and has a through hole extending along its own axial direction.

[0041] It should be noted that in this embodiment, both ends of the tension roller 31 can rotate relative to its own axis via bearings 32. That is, the tension roller 31 is connected to the inner ring of the bearing 32. When the tension measuring device 1 detects the tension of the wire 2, the support base 10 is used to fix it to the large plate of the winding machine, and the wire 2 of the winding machine overlaps on the tension roller 31. The roller assembly 30 is installed at the test end of the tension sensor 20, so the gravity of the roller assembly 30 will act on the tension sensor 20. During measurement, when the wire 2 overlaps on the tension roller 31, the tension sensor 20 will detect the change in pressure, thereby realizing the measurement of the tension of the wire 2 by pressure and according to the angle of the wire at this time.

[0042] It needs to be explained that the inventors discovered that in the process of measuring the tension of the material line 2, the gravity of the tension measuring device 1 itself will form a larger resultant force with the tension of the material line 2, and the tension value measured by the tension measuring roller actually reflects the magnitude of the resultant force.

[0043] Most existing tension measuring devices 1 reduce the influence of their own weight on the measurement through calibration. Although the influence of the tension measuring device 1 on the measurement can be reduced by calibrating the tension measuring device 1, the included angle may change during the movement of the material line 2. Therefore, even if the effect of gravity is eliminated in the static state, it will still affect the rationality of the formation of gravity and pressure of the material line 2 in the dynamic state. Thus, the influence of the tension measuring device 1's own weight on the measurement still exists, and will gradually become greater with the time of use.

[0044] In this embodiment of the invention, the tension sensor 20 is connected to the support base 10, and the tension sensor 20 acts on the support base 10, thus avoiding the influence of the gravity of the support base 10 on the tension roller 31 on the tension roller assembly 30 for measuring the tension of the material line 2. Furthermore, in this embodiment, the tension roller 31 has a through hole extending along its own axial direction. The non-solid structure of the tension roller 31 effectively reduces its own weight, thereby reducing the influence of its own gravity on the tension testing of the material line 2.

[0045] Furthermore, since the tension roller 31 is provided with through holes, its own weight can be reduced. Therefore, its moment of inertia is reduced during the acceleration and deceleration phases. As a result, the tension roller 31 has less influence on the material line 2 when it rotates. Therefore, reducing the influence of the moment of inertia on the tension of the material line 2 when it is driven to rotate by the material line 2 can improve the accuracy of the tension measurement of the material line 2.

[0046] Furthermore, in this embodiment, the axis of the through hole is coaxial with the axis of the tension roller 31, that is, the through hole is located at the center of the tension roller 31. This arrangement ensures that the rotational speed of the tension roller 31 is relatively uniform throughout its rotation, thereby improving the accuracy of measuring the tension of the material line 2.

[0047] It should be noted that the quality of the bearing 32 also affects the measurement results when measuring the tension of the feed line 2. Understandably, a high-quality bearing 32 has less friction between its inner and outer rings. Therefore, when measuring the tension of the feed line 2, the less friction occurs between the inner and outer rings of the bearing 32 as the feed line 2 drives the tension roller 31 to rotate, the less impact it has on the feed line 2, and thus a more accurate tension reading can be obtained.

[0048] Similarly, in this embodiment, the lower the mass of the bearing 32 and the lower the moment of inertia generated by the inner ring, the more the influence of the bearing 32's inertia and friction on the tension of the feed line 2 can be reduced.

[0049] Please refer to Figure 5 Specifically, in this embodiment, the support member 33 includes a first support end 331, a connecting part 333, and a second support end 332 connected in sequence. The first support end 331 or the second support end 332 is connected to the tension sensor 20. Specifically, in this embodiment, the second support end 332 is connected to the tension sensor 20.

[0050] Both the first support end 331 and the second support end 332 are provided with bearing mounting spaces 334, and the connecting part 333 is provided with an opening 3331 extending along its own axial direction, and at least part of the tension roller 31 is located in the opening 3331.

[0051] Specifically, in this embodiment, the opening angle 3331 of the body 11 of the support base 10 is between 200-240°.

[0052] It should be noted that in this embodiment, the bearing mounting space 334 formed by the first support end 331 and the second support end 332 is in the shape of a circular hole, and the bearing mounting space 334 communicates with the opening 3331. The outer ring of the bearing 32 is interference-fitted with the bearing 32 mounting hole to ensure the stability of the bearing 32 when mounted on the bearing 32 mounting hole.

[0053] The connecting part 333 exposes the tension roller 31 through the opening 3331, and can also reduce its own weight through the opening 3331, further reducing the influence of the roller assembly 30 on the tension measurement of the material line 2.

[0054] In other words, the first support end 331 and the second support end 332 are hollow, which can effectively reduce the mass of the support 33, and thus effectively reduce the influence of the mass of the support 33 on the tension measurement of the material line 2.

[0055] It should be noted that in this embodiment, the material of the support member 33 is made of a material that is relatively light and has high strength, such as aluminum-lithium alloy, titanium-aluminum alloy, magnesium alloy, beryllium alloy and titanium alloy. The material of the support member 33 is not specifically limited here, as long as it can ensure that the support member 33 has a relatively light weight and a certain strength.

[0056] Furthermore, the tension roller 31 is also provided with two shoulders 311 for abutting against the bearing 32. Understandably, the abutment between the shoulders 311 and the bearing 32 allows the bearing 32 to be positioned in the axial direction. The shoulders 311 on the tension roller 31 can be integrally formed with the tension roller 31, or they can be connected to the tension roller 31 by adhesive bonding. The connection method between the shoulders 311 and the tension roller 31 is not specifically limited here, as long as the stability of the connection between the tension roller 31 and the shoulders 311 can be ensured.

[0057] Furthermore, the tension measuring device 1 also includes two sleeves 40, which are respectively disposed within the mounting holes of the bearing 32 and abut against the bearing 32. In other words, the sleeves 40 are used to abut against the section of the bearing 32 away from the tension roller 31. The end walls of the sleeves 40 are also provided with through holes for the tension roller 31 to pass through. The tension roller 31 can rotate relative to the sleeves 40 along its own axis.

[0058] As is easily understood, the sleeve 40 is cylindrical, and its end wall is connected to the end of the bearing 32 away from the tension roller 31, enabling the bearing 32 to be positioned and assembled axially with the cooperation of the shoulder 311. The cylindrical sleeve 40 is hollow inside, which can minimize its own weight and reduce the influence of its own weight on the tension measurement of the material line 2 while completing the axial positioning of the bearing 32.

[0059] Furthermore, in this embodiment, the support base 10 includes a body 11 and a magnetic component 12 connected to the body 11. The magnetic component 12 is used to connect to the winding machine. It should be noted that the tension measuring device 1 needs to be able to measure the tension of the material line 2 between two adjacent rollers. However, existing tension measuring devices 1 are mostly fixedly mounted on the large plate of the winding machine, which usually requires drilling holes in the large plate. They are generally used to measure the tension of the material line 2 at key positions on the winding machine table. Furthermore, if it is directly replaced with the rollers on the large plate, it cannot achieve the purpose of measuring the tension of the material line 2 between two adjacent rollers, thus limiting its measurement capabilities.

[0060] The support base 10 of the tension measuring device 1 provided in this embodiment includes a magnetic component 12. The magnetic component 12 can be magnetically connected to the metal in the winding machine, thereby enabling the tension measuring device 1 to be conveniently and quickly installed at various locations of the material line 2 in the winding machine and to measure the tension of the material line 2.

[0061] Furthermore, in this embodiment, the body 11 and the magnetic component 12 are detachably connected. It can be understood that since the body 11 and the magnetic component 12 are detachably connected, it is easy to replace and disassemble the magnetic component 12 and the body 11. When the magnetic component 12 or the body 11 is damaged, only the damaged parts need to be replaced, and the entire support base 10 does not need to be replaced, which can save certain costs and has certain economic applicability.

[0062] Specifically, the body 11 has multiple first mating holes, and the magnetic component 12 has multiple second mating holes corresponding to the multiple first mating holes. Any one of the first mating holes and the second mating holes is a threaded hole, and the body 11 and the magnetic component 12 are connected by threaded fasteners.

[0063] Understandably, the connection between the body 11 and the magnetic component 12 is achieved through threaded fasteners. When the magnetic component 12 is connected to the winding machine to test the tension of the wire 2, the parallelism of the tension roller 31 can be adjusted by adjusting the tightness of the threaded fasteners. This allows it to adapt to different states of the wire 2 on the winding machine, enabling the tension roller 31 to be adapted to different conditions of the wire 2, thereby increasing the accuracy of the tension measurement of the wire 2.

[0064] Specifically, the first mating hole is a threaded hole, and the second mating hole is a through hole. The threaded fastener can pass through the second mating hole and the first mating hole in sequence to connect the body 11 and the magnetic component 12.

[0065] Furthermore, in some other embodiments, the connection between the body 11 and the magnetic component 12 is not limited to being achieved by threaded fasteners passing through threaded holes and non-threaded holes. It can also be achieved by other detachable connection methods, such as plug-in connection.

[0066] It should be noted that in this embodiment, the magnetic component 12 is an electromagnet. It is understood that the electromagnet has high magnetic strength, which can effectively ensure that the body 11 can be stably installed on the large plate of the winding machine, thereby improving the accuracy of the tension measurement of the wire 2.

[0067] Of course, in some other embodiments, the magnetic component 12 is not limited to the electromagnet described above, but can also be a large magnet. When the large magnet needs to be disassembled after installation, it can be disassembled through a special demagnetization process to satisfy its removability.

[0068] Furthermore, the roller assembly 30 also includes a first end fixing member 50 and a second end fixing member 60, the second end fixing member 60 being connected to the tension sensor 20. The first end fixing member 50 is connected to the end of the support member 33 away from the tension sensor 20, and the second end fixing member 60 is connected to the end of the support member 33 close to the tension sensor 20.

[0069] It should be noted that the first end fixing member 50 and the second end fixing member 60 can stably fix the end of the support member 33. Specifically, the first support end 331 is connected and installed in the first end fixing member 50, and the second support end 332 is installed in the second end fixing member 60. It can be understood that the first support end 331 is an end cap.

[0070] In detail, the first end fixing member 50 is detachably connected to the first support end 331, and the second end fixing member 60 is detachably connected to the second support end 332. Understandably, this detachable connection effectively ensures the ease of assembly of the first end fixing member 50, the second end fixing member 60, and the support member 33.

[0071] Specifically, in this embodiment, the first end fixing member 50 is threadedly connected to the support member 33. It can be understood that the first end fixing member 50 is provided with internal threads, and the outer side wall of the first support end 331 of the support member 33 is provided with external threads. During assembly, the first end fixing member 50 can be screwed to the first support end 331 to achieve a threaded connection.

[0072] In this embodiment, the second end fixing member 60 and the support member 33 are connected by a pin and a pin hole. It can be understood that the second end fixing member 60 and the second support end 332 of the support member 33 are provided with pin holes, and the connection is achieved by inserting a pin into the pin control of the second end fixing member 60 and the second support end 332.

[0073] It should be noted that, when measuring the tension of the material line 2, preferably, the wrap angle of the material line 2 on the tension roller 31 is between 45° and 75°. In other words, the angle formed by the material line 2 overlapping the tension roller 31 is within the range of 105° to 135°. This satisfies the detection requirements of the tension sensor 20 while minimizing changes to the actual direction of the material line, thereby ensuring more stable measurement of the tension of the material line 2.

[0074] Please refer to Figures 6-7 Furthermore, in another embodiment, the tension measuring device 1 further includes two auxiliary roller assemblies 70 arranged at intervals along a first direction. Each auxiliary roller assembly 70 includes an auxiliary body 72 and an auxiliary roller 71 rotatably connected to the auxiliary body 72. The auxiliary body 72 is disposed on the support base 10. The axes of the two auxiliary rollers 71 are parallel to the axis of the tension roller 31. The tension roller 31 is located on the axis of the two auxiliary rollers 71 in the first direction. The axes of the two auxiliary rollers 71 are located on an auxiliary plane. The axis of the tension roller 31 is parallel to the auxiliary plane.

[0075] It should be noted that the first direction is perpendicular to the axis direction. Figure 7 For reference, the first direction is the left-right direction, and the axis direction is the front-back direction.

[0076] Please refer to Figure 7 As is easily understood, when the tension measuring device 1 is installed on the large plate of the winding machine to test the tension of the wire 2, the wire 2, located between the two idler rollers, passes sequentially through the auxiliary roller 71, the tension roller 31, and another auxiliary roller 71, with the wire 2 positioned between the auxiliary roller 71 and the tension roller 31. It can be understood that the cooperation between the two auxiliary roller assemblies 70 and the roller shaft assembly 30 ensures that the angle formed by the wire 2 remains constant when measuring its tension, thus preventing the tension measurement from being affected by angle changes during the measurement and calculation process, resulting in more accurate tension measurement.

[0077] It should be noted that in this embodiment, the auxiliary roller assembly 70 has the same structure as the roller assembly 30, that is, the auxiliary body 72 includes two auxiliary bearings 32, an auxiliary support, and an auxiliary sleeve 40. In other words, the auxiliary bearings 32, auxiliary supports, and auxiliary sleeves have the same function and structure as the bearings 32, support members 33, and sleeves 40 in the roller assembly 30. The auxiliary roller 71 has the same structure as the tension roller 31. Therefore, the auxiliary roller assembly 70 also has the beneficial effects of the roller assembly 30, and therefore will not be described in detail here.

[0078] As is easily understood, in this embodiment, the auxiliary roller assembly 70 is directly mounted on the support base 10, unlike the roller assembly 30 which is mounted on the support base 10 via the tension sensor 20. Therefore, the gravity of the auxiliary roller assembly 70 has a very low impact on the tension measurement of the material line 2.

[0079] It should be noted that, in this embodiment, the plane containing the axis of the tension roller 31 and the axis of one of the two auxiliary rollers 71 is the first plane, and the plane containing the axis of the tension roller 31 and the axis of the other auxiliary roller 71 is the second plane. The angle between the first plane and the second plane is between 100-130°, thereby ensuring the wrap angle between the material line 2 and the surface of the tension roller 31, so that the material line 2 can be stably attached to the tension roller 31, ensuring that the tension roller 31 can stably measure the tension of the material line 2, thus ensuring the accuracy of the measurement.

[0080] It should be noted that in this embodiment, the tension of the material line 2 is detected by the tension sensor 20. After reducing the influence of inertia, gravity, friction, and the angle of the material line 2, the measurement value of the tension sensor 20 provided in this embodiment is more accurate than when these influences are present. The measured value is closer to the actual pressure value, and the accuracy is also higher. Therefore, the tension of the material line 2 can be detected more accurately.

[0081] In summary, the tension measurement assembly provided in this embodiment of the invention includes a support base 10, a tension sensor 20, and a roller assembly 30. The roller assembly 30 includes a tension roller 31, two bearings 32, and a support member 33. The support member 33 is connected to the support base 10, and the tension sensor 20 is connected to one end of the support member 33. The support member 33 has bearing mounting spaces 334 at both ends along the axial direction for assembling with the two bearings 32, respectively. Both ends of the tension roller 31 are connected to the two bearings 32. The tension roller 31 is used to contact the material line 2 and has a through hole extending along its own axial direction. The non-solid structure of the tension roller 31 effectively reduces its own weight, thereby reducing the influence of its own gravity on the tension testing of the material line 2. Reducing its own weight also reduces the inertia of the tension roller 31. Therefore, the tension roller 31 has less influence on the material line 2 when it rotates. This reduces the influence of the inertia of the material line 2 on the tension of the material line 2 when it is rotated by the material line 2, which can improve the accuracy of the tension measurement of the material line 2. Under the action of the electromagnet, the tension measuring device 1 can be quickly and easily installed and removed on the winding machine, and the tension of the material line 2 between adjacent rollers can be measured directly.

[0082] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A tension measuring device, characterized in that, include: Support base; A tension sensor, which is connected to a support base; A roller assembly, comprising a tension roller, two bearings and a support member, wherein the support member is connected to a support base, one end of the support member is connected to the tension sensor, and both ends of the support member along the axial direction have bearing mounting spaces for assembly with the two bearings respectively; both ends of the tension roller are connected to the two bearings respectively; and the tension roller is used to contact the material line and has through holes extending along its own axial direction. The support includes a first support end, a connecting portion, and a second support end connected in sequence. The first support end or the second support end is connected to the tension sensor. Both the first support end and the second support end have the bearing mounting space. The connecting portion has an opening extending along its own axial direction, and at least part of the tension roller is located in the opening.

2. The tension measuring device according to claim 1, characterized in that: The tension roller is also provided with two shoulders for abutting against the bearing.

3. The tension measuring device according to claim 2, characterized in that: The tension measuring device further includes two sleeves, which are respectively disposed in the bearing mounting space and their end walls abut against the bearing. The end walls of the sleeves also have through holes for the tension roller to pass through, and the tension roller can rotate relative to the sleeves along its own axis.

4. The tension measuring device according to claim 1, characterized in that: The support base includes a body and a magnetic component connected to the body, the magnetic component being used to connect to a winding machine.

5. The tension measuring device according to claim 4, characterized in that: The main body and the magnetic component are detachably connected.

6. The tension measuring device according to claim 5, characterized in that: The body has multiple first mating holes, and the magnetic component has multiple second mating holes corresponding to the multiple first mating holes. Any one of the first mating holes and the second mating holes is a threaded hole. The body and the magnetic component are connected by threaded fasteners.

7. The tension measuring device according to claim 1, characterized in that: The tension measuring device further includes a first end fixing member and a second end fixing member. The second end fixing member is connected to the tension sensor. The first end fixing member is connected to the end of the support member away from the tension sensor. The second end fixing member is connected to the end of the support member close to the tension sensor.

8. The tension measuring device according to claim 7, characterized in that: The first end fixing member is threadedly connected to the support member, and the second end fixing member is connected to the support member through a pin and a pin hole.

9. The tension measuring device according to claim 1, characterized in that: The tension measuring device further includes two auxiliary roller assemblies spaced apart along a first direction. Each auxiliary roller assembly includes an auxiliary body and an auxiliary roller rotatably connected to the auxiliary body. The auxiliary body is disposed on the support base. The axes of the two auxiliary rollers are parallel to the axis of the tension roller. The tension roller is located on the axis of symmetry of the two auxiliary rollers in the first direction. The axes of the two auxiliary rollers are located on an auxiliary plane. The axis of the tension roller is parallel to the auxiliary plane.

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