Device for testing torque of coiled material

Abstract

The utility model relates to the technical field of sanitary material production and manufacturing, in particular to a device for testing the torque of a coiled material, which comprises a shell in which an expansion rod driving assembly is arranged; when at least part of the shell is inserted into the inner cylinder of the coiled material, the expansion rod driving assembly drives the expansion rod to abut against the inner wall of the inner cylinder so that the shell can be fixedly connected with the inner cylinder; the shell is connected with a torque testing mechanism; and when the shell and the inner cylinder rotate relative to the coiled material through the torque testing mechanism, a torque value is obtained. The testing device provided by the utility model can be suitable for measuring the torque value when dislocation sliding occurs between inner cylinders with various inner diameters and a winding material, and when the testing device is used, the shell is inserted into the inner cylinder, the expansion rod abuts against the inner wall, and then force is applied to the torque testing mechanism, so that the testing device is relatively convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of sanitary material manufacturing technology, specifically to a device for testing the torque of rolled materials. Background Technology

[0002] In the production of sanitary materials, raw materials such as non-woven fabrics and multi-layer composite materials need to be rolled up on inner cylinders and other supporting components to form rolls.

[0003] After winding, it is necessary to test the rotational torque at which misalignment and slippage occur between the inner support and the wound material, thereby disrupting the original winding state of the roll. Obtaining the torque value at which misalignment and slippage occur between the inner support and the wound material is crucial for setting the process parameters of the winding and unwinding equipment during the winding or unwinding process. It also serves as a reference for determining whether the winding tension during production will damage special product structures (such as 3D bulges, 3D bulges combined with perforated structures, etc.). Furthermore, it can provide data references for product packaging, storage, transportation, and downstream use.

[0004] In the existing technology, there is a lack of a testing device that can be used to test the torque between the inner support member and the winding material of the test roll. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a device for testing the torque of rolled materials.

[0006] The technical solution provided by this utility model is as follows:

[0007] An apparatus for testing the torque of a roll material includes a housing and a tension rod drive assembly installed inside the housing. When the housing is at least partially inserted into the inner cylinder of the roll material, the tension rod drive assembly drives the tension rod to press against the inner wall of the inner cylinder, thereby fixing the housing and the inner cylinder in a fixed connection. The housing is connected to a torque testing mechanism. When the housing and the inner cylinder are rotated relative to the roll material by the torque testing mechanism, a torque value is obtained.

[0008] As an optional technical solution, the expansion rod drive assembly includes a force application mechanism, which is connected to a linkage mechanism, and the linkage mechanism is connected to the expansion rod; the force application mechanism is used to drive the linkage mechanism to move the expansion rod to abut against the inner wall of the inner cylinder.

[0009] Optionally, the linkage mechanism includes a slider that is slidably connected to the housing, and the force-applying mechanism is used to drive the slider to move along the axial direction of the housing; the linkage mechanism also includes a connecting rod, the two ends of which are respectively hinged to the slider and the expansion rod.

[0010] Optionally, the linkage mechanism is a pair, with the force-applying mechanism located between the pair of linkage mechanisms, and both linkage mechanisms are connected to the force-applying mechanism.

[0011] Furthermore, the force-applying mechanism is a pneumatic / electric / hydraulic push rod.

[0012] Optionally, the housing includes a pair of spaced-apart end plates, which are fixedly connected by a strut.

[0013] Optionally, a guide seat is fixedly connected to the end plate, and the guide seat is provided with an axial groove for inserting a slider; or, a guide rod is provided on the end plate, and the slider is provided with an axial groove for inserting a guide rod.

[0014] Optionally, the end plate is circular, and there are multiple expansion rods. The length extension direction of the multiple expansion rods is parallel to the axial direction of the end plate, and the multiple expansion rods are evenly distributed in a ring along the circumference of the end plate. The edge of the end plate is provided with a radial limiting groove, and the two ends of the expansion rods are inserted into the radial limiting groove. The radial limiting groove is used to restrict the radial movement of the expansion rods along the end plate.

[0015] Optionally, the guide seat is fixedly connected to a connecting block, which is coaxial with the end plate; the torque testing mechanism is a torque wrench, which is connected to the housing through the connecting block.

[0016] As an optional technical solution, the contact surface between the expansion rod and the inner cylinder is provided with anti-slip texture, which is used to prevent relative sliding between the expansion rod and the inner cylinder.

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] The device for testing the torque of rolled materials proposed in this invention can be inserted into the inner cylinder of the rolled material. A tension rod drive assembly drives the tension rod to press against the inner wall of the inner cylinder, thereby fixing the testing device and the inner cylinder relatively. The testing device is equipped with a torque testing mechanism, which can be forceped to cause the tension rod and the inner cylinder to rotate relative to the wound material. When misalignment and sliding occur between the inner cylinder and the wound material, the torque value can be obtained through the torque testing mechanism. The testing device proposed in this invention is applicable to measuring the torque value when misalignment and sliding occur between inner cylinders of various inner diameters and the wound material. Furthermore, it is convenient to use; simply insert the housing into the inner cylinder, press the tension rod against the inner wall, and then apply force to the torque testing mechanism. Attached Figure Description

[0019] Figure 1 This is a perspective view of a device for testing the torque of a roll material in one embodiment of this application;

[0020] Figure 2 This is a front view of an apparatus for testing the torque of a roll material in one embodiment of this application;

[0021] Figure 3 This is a schematic diagram of using a torque wrench in one embodiment of this application;

[0022] Figure 4 This is a side view of an apparatus for testing the torque of a roll material in one embodiment of this application;

[0023] Figure 5 This is a schematic diagram of a device for testing the torque of a roll material in one embodiment of this application, when the torque of the roll material is being tested.

[0024] Explanation of the labels in the diagram:

[0025] End plate 101, support rod 102, guide seat 103, connecting block 104, guide rod 105, torque testing mechanism 106, inner cylinder 107, roll material 108;

[0026] Force application mechanism 201, slider 202, connecting rod 203, expansion rod 204, anti-slip texture 205. Detailed Implementation

[0027] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0028] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0029] In one embodiment, such as Figure 1-4As shown, this application proposes a device for testing the torque of a roll material. The device includes a housing, within which a tension rod drive assembly is installed. The tension rod drive assembly drives a tension rod 204. Specifically, when the housing is at least partially inserted into the inner cylinder 107 of the roll material 108, the tension rod drive assembly drives the tension rod 204 to abut against the inner wall of the inner cylinder 107, thereby fixing the housing and the inner cylinder 107 together. Before inserting the housing into the inner cylinder 107, the outer diameter of the testing device is smaller than the inner diameter of the inner cylinder 107. After the housing is inserted into the inner cylinder 107, the tension rod drive assembly can drive the tension rod 204 to extend out of the housing until it abuts against the inner wall of the inner cylinder 107. When the tension rod 204 can abut against the inner cylinder 107 with a large force, the housing and the inner cylinder 107 can be fixedly connected by the friction between the tension rod 204 and the inner wall of the inner cylinder 107. When the housing is rotated by an external force, the inner cylinder can also be rotated, thereby causing misalignment and sliding between the inner cylinder and the wound material.

[0030] The device in this embodiment also includes a torque testing mechanism 106, which is connected to the housing. Figure 5 As shown, an external force can be applied to the torque testing mechanism 106, which drives the housing to rotate, thereby causing the inner cylinder 107 to rotate. When misalignment and slippage are observed between the inner cylinder and the wound material, the torque value obtained by the torque testing mechanism 106 is recorded. To improve the accuracy of the measurement, multiple measurements can be performed.

[0031] Regarding the structure of the expansion rod drive assembly, in one alternative implementation, such as Figure 1-2 As shown, the expansion rod drive assembly includes a force application mechanism 201, which is connected to a linkage mechanism, and the linkage mechanism is connected to the expansion rod 204. The force application mechanism 201 drives the linkage mechanism to extend the expansion rod 204 out of the inner body and abut against the inner wall of the inner cylinder 107. Alternatively, the force application mechanism 201 drives the linkage mechanism to return the expansion rod 204 to its original position, thereby causing the expansion rod 204 to no longer abut against the inner wall of the inner cylinder 107, allowing the housing to be pulled out of the inner cylinder 107.

[0032] Optionally, the linkage mechanism includes a slider 202 slidably connected to the housing, and a force-applying mechanism 201 for driving the slider 202 to move axially along the housing. The housing is preferably cylindrical, such as a cylinder or prism. When the housing is cylindrical, it has a central axis. When the housing is prism, the length extension direction of the prism can be considered its axial direction. The linkage mechanism also includes a connecting rod 203, with its two ends hinged to the slider 202 and the expansion rod 204, respectively. When the slider 202 moves axially along the housing, the slider 202 can drive the expansion rod 204 to move towards the inner wall of the inner cylinder 107 via the connecting rod 203, or drive the expansion rod 204 away from the inner wall of the inner cylinder 107.

[0033] Preferably, there is a pair of linkage mechanisms, with the force-applying mechanism 201 located between the pair of linkage mechanisms, and both linkage mechanisms are connected to the force-applying mechanism 201. The pair of linkage mechanisms can synchronously drive the extension rod 204 to move, which not only improves the stability of the movement of the extension rod 204, but also improves the fit of the extension rod 204 against the inner wall of the inner cylinder, thereby helping to achieve a fixed connection between the shell and the inner cylinder 107.

[0034] Optionally, the force-applying mechanism 201 can be a pneumatic, electric, or hydraulic actuator. Alternatively, a linear module or other drive mechanism can be used; that is, any drive mechanism capable of driving the slider 202 to move linearly along the housing axis and returning the slider 202 to its original position can be used as the force-applying mechanism 201 in this embodiment. Force-applying mechanisms capable of achieving this function are relatively mature in the prior art and will not be elaborated upon or limited here.

[0035] As an optional implementation of the shell structure, the shell includes a pair of spaced-apart end plates 101, which are fixedly connected by support rods 102. Multiple support rods 102 can be arranged in a ring, and then the two end plates 101 are fixedly connected to the two ends of the support rods 102 respectively. Depending on the materials of the end plates 101 and the support rods 102, welding, bolting, or adhesive bonding can be used to fix the end plates 101 to the support rods 102.

[0036] Guide seats 103 can be fixedly connected to both end plates 101. The guide seats 103 can be fixedly connected to the end plates 101 by bolts or welding. The guide seats 103 are provided with axial grooves for the insertion of sliders 202, allowing sliders 202 to slide along the axial direction of the housing. Alternatively, guide rods 105 can be provided on both end plates 101, and sliders 202 are provided with axial grooves for the insertion of guide rods 105, which also allows sliders 202 to slide along the axial direction of the housing. Or, guide seats 103 can be provided on one end of the end plate 101, and guide rods 105 can be provided on the other end of the end plate 101, which also allows both sets of sliders 202 to slide along the axial direction of the housing.

[0037] Preferably, the end plate 101 is circular, and its diameter can be designed according to the inner diameter of the inner cylinder 107. It should be noted that the diameter of the end plate 101 is smaller than the diameter of the inner cylinder 107. Multiple expansion rods 204 are provided, with their length extending parallel to the axial direction of the end plate 101, and they are evenly distributed in a ring around the circumference of the end plate 101. A radial limiting groove 101-1 is provided on the edge of the end plate 101, and both ends of the expansion rods 204 are inserted into the radial limiting groove 101-1. Under the constraint of the radial limiting groove 101-1, the expansion rods 204 can only move radially along the end plate 101, which helps to ensure that the expansion rods 204 tightly abut against the inner wall of the inner cylinder.

[0038] As an alternative, the contact surface between the expansion rod 204 and the inner cylinder 107 is provided with anti-slip texture 205. The anti-slip texture 205 can increase the friction between the expansion rod 204 and the inner wall of the inner cylinder, thereby preventing relative sliding between the expansion rod 204 and the inner cylinder 107 after the expansion rod 204 abuts against the inner wall of the inner cylinder 107.

[0039] In one embodiment, the guide seat 103 is fixedly connected to the connecting block 104 for the torque testing mechanism 106. Preferably, the guide seat 103, the connecting block 104, and the end plate 101 are coaxial. The torque testing mechanism 106 is a torque wrench, which is connected to the housing via the connecting block 104. A torque wrench that can display the torque value in real time can be selected. By turning the torque wrench, the connecting block 103, the guide seat 103, and the housing are rotated coaxially, which in turn drives the inner cylinder to rotate coaxially. After the inner cylinder 107 and the winding material of the roll 108 are misaligned and slipped, the torque value can be obtained through the torque wrench. Alternatively, a torque wrench that can preset the torque value can be selected. In this case, it is possible to test whether the inner cylinder will misalign and slip with the winding material when a certain preset torque value is applied to the inner cylinder.

[0040] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for testing the torque of rolled materials, characterized in that: The device includes a housing, and a tension rod drive assembly is installed inside the housing; when the housing is at least partially inserted into the inner cylinder (107) of the roll (108), the tension rod drive assembly drives the tension rod (204) to abut against the inner wall of the inner cylinder (107) to fix the housing to the inner cylinder (107); The housing is connected to a torque testing mechanism (106); when the housing and inner cylinder (107) are rotated relative to the roll material (108) by the torque testing mechanism (106), the torque value is obtained.

2. The apparatus for testing the torque of a roll material according to claim 1, characterized in that: The strut drive assembly includes a force application mechanism (201), which is connected to a linkage mechanism, and the linkage mechanism is connected to the strut (204); The force-applying mechanism (201) is used to drive the linkage mechanism to move the expansion rod (204) against the inner wall of the inner cylinder (107).

3. The apparatus for testing the torque of a roll material according to claim 2, characterized in that: The linkage mechanism includes a slider (202) slidably connected to the housing, and the force application mechanism (201) is used to drive the slider (202) to move along the axial direction of the housing; The linkage mechanism also includes a connecting rod (203), the two ends of which are hinged to the slider (202) and the expansion rod (204) respectively.

4. The apparatus for testing the torque of a roll material according to claim 3, characterized in that: The linkage mechanism is a pair, and the force-applying mechanism (201) is located between the pair of linkage mechanisms. Both of the linkage mechanisms are connected to the force-applying mechanism (201).

5. The apparatus for testing the torque of a roll material according to claim 4, characterized in that: The force-applying mechanism (201) is a pneumatic / electric / hydraulic push rod.

6. The apparatus for testing the torque of a roll material according to claim 3, characterized in that: The housing includes a pair of end plates (101) arranged at intervals, and the pair of end plates (101) are fixedly connected by a strut (102).

7. The apparatus for testing the torque of a roll material according to claim 6, characterized in that: A guide seat (103) is fixedly connected to the end plate (101), and the guide seat (103) is provided with an axial groove for inserting a slider (202); or, The end plate (101) is provided with a guide rod (105), and the slider (202) is provided with an axial groove for inserting the guide rod (105).

8. The apparatus for testing the torque of a roll material according to claim 6, characterized in that: The end plate (101) is circular, and there are multiple expansion rods (204). The length extension direction of the multiple expansion rods (204) is parallel to the axial direction of the end plate (101), and the multiple expansion rods (204) are evenly distributed in a ring along the circumference of the end plate (101). The edge of the end plate (101) is provided with a radial limiting groove (101-1), and the two ends of the expansion rod (204) are inserted into the radial limiting groove (101-1). The radial limiting groove (101-1) is used to restrict the expansion rod (204) from moving radially along the end plate (101).

9. The apparatus for testing the torque of a roll material according to claim 7, characterized in that: The guide seat (103) is fixedly connected to a connecting block (104), and the connecting block (104) is coaxial with the end plate (101); The torque testing mechanism (106) is a torque wrench, which is connected to the housing via a connecting block (104).

10. The apparatus for testing the torque of a roll material according to any one of claims 1-9, characterized in that: The contact surface between the expansion rod (204) and the inner cylinder (107) is provided with anti-slip texture (205), which is used to prevent the expansion rod (204) and the inner cylinder (107) from sliding relative to each other.

Images