Tension testing device

Abstract

The utility model discloses a tension testing device which comprises a base, a vertical supporting rod is arranged on the base, a testing track supporting vertical sliding is attached to the front end of the supporting rod, a sliding assembly capable of annularly sleeving a rubber string or an article containing the rubber string is installed on the testing track, and a force sensing assembly is arranged corresponding to the sliding assembly. The sliding assembly comprises a ring sleeve column assembly and a power piece, the ring sleeve column assembly is composed of two parts, namely a fixed upper semicircular ring sleeve column and a movable lower semicircular ring sleeve column, the power piece and the lower semicircular ring sleeve column are correspondingly arranged, and the power piece is used for controlling the lower semicircular ring sleeve column to vertically translate on the test track; the upper semi-circular ring sleeve column and the lower semi-circular ring sleeve column are used for simulating the waistline and the hip contour of an infant and are used for testing loop rubber bands or objects containing the rubber bands. Through the tension testing device, the overall loop test of loop rubber bands or rubber band-containing articles can be realized. In addition, the tension testing device has the advantages of simple and stable structure, convenience and reliability in operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension detection field, concretely is a tension testing device. BACKGROUND

[0002] In order to guarantee the quality of the product (such as: paper diaper, sheet), it is often necessary to carry out a variety of performance tests, which include the rubber band ratio and tension test. At present, the tension test for the rubber band is basically single-stretch test of non-ring shape, which cannot realize complete ring test of pull-ups or ring test of cut part of the rubber band. However, the ring test can make the digital representation of the rubber band tension of the baby pull-ups more close to the digital representation of the rubber band tension of the baby pull-ups worn on the baby. The ring test of the cut part of the rubber band can realize the digital representation of the rubber band tension of the waist and abdomen. Therefore, it is very important to design a tension testing device which can realize complete ring test of pull-ups or ring test of cut part of the rubber band. SUMMARY

[0003] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] The utility model provides the following technical scheme to solve one or more of the above technical problems:

[0005] A tension testing device, comprising a base, a vertical support rod is arranged on the base, a test track capable of supporting vertical sliding is attached to the front end of the support rod, a sliding assembly capable of sleeving a rubber band or containing a rubber band article is installed on the test track, and a force sensing assembly is arranged corresponding to the sliding assembly, the sliding assembly comprises a sleeving column assembly and a power component, the sleeving column assembly is composed of two parts, which are a fixed upper semicircular sleeving column and a movable lower semicircular sleeving column, the power component is arranged corresponding to the lower semicircular sleeving column, and the power component is used for controlling the lower semicircular sleeving column to vertically translate on the test track. The upper semicircular sleeving column and the lower semicircular sleeving column simulate the baby's waist circumference and hip profile, and are used for testing the sleeving rubber band or the rubber band article.

[0006] In some embodiments, the rubber band article includes pull-ups and cut part of the rubber band, and the cut part of the rubber band includes waist circumference rubber band, abdominal rubber band and whole rubber band.

[0007] In some embodiments, the base is in T-shaped structure, comprising a horizontal rod and a vertical rod, the bottom of the support rod is connected to the center position of the upper surface of the horizontal rod, and one side end of the vertical rod is connected to the center of the front side surface of the horizontal rod.

[0008] In some implementations...

[0009] The bottom of the base can also be equipped with multiple rollers to facilitate the movement of the tension testing device;

[0010] One or more reinforcing ribs are added between the base and the support rod.

[0011] In some embodiments, a control box is mounted on the support rod, the control box is located on the lower rear side of the support rod, and the center of the rear side of the control box is connected to the support rod, and the power component is connected to the control box.

[0012] In some embodiments, the movable circumference of the upper and lower semicircular rings ranges from 325 to 1350 mm.

[0013] In some implementations...

[0014] The surfaces of both the upper and lower semicircular rings are smooth and flat.

[0015] The upper and lower semicircular rings are made of hard plastic and are integrally injection molded.

[0016] In some embodiments, the upper semi-circular ring sleeve is horizontally fixed at the top of the test track, and pressure sensors are embedded on the upper semi-circular ring sleeve and / or the lower semi-circular ring sleeve as force sensing components, and the pressure sensors are connected to the control box.

[0017] In some embodiments, the upper front side of the support rod is also provided with a display screen connected to the control box. The display screen is equipped with a warning light, a start test button, and a stop reset knob. The start test button is used to start the power component to control the lower semi-circular ring column to move vertically to the set circumference on the test track. The stop reset knob is used to stop the power component from performing the current command and move the lower semi-circular ring column back to the initial zero point position. The test completion warning light can be used to indicate whether the test is completed.

[0018] Compared with the prior art, the advantages of this utility model are: simple and stable structure, simple and practical operation, and it can realize the overall ring test of ring-sleeved rubber bands or items containing rubber bands. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1This is a schematic diagram of the tension testing device in some embodiments of this utility model;

[0021] Figure 2 This is a schematic diagram of the upper and lower semicircular rings surrounding the column in some embodiments of this utility model. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Combination Figure 1 As shown in the embodiment, this invention proposes a tension testing device, including a base 1, a vertical support rod 2 on the base 1, a test track 4 for vertical sliding attached to the front end of the support rod 2, a sliding component that can loop around an elastic band or an item containing an elastic band installed on the test track 4, and a force sensing component corresponding to the sliding component. The aforementioned item containing an elastic band can be a pull-up trouser or an elastic band cut into a portion (waist, abdomen, or the entire garment).

[0027] The base 1 can be T-shaped, including a horizontal bar and a vertical bar. The bottom of the support rod 2 is connected to the center of the upper surface of the horizontal bar, and one end of the vertical bar is connected to the center of the front side of the horizontal bar. Multiple rollers can also be added to the bottom of the base 1 to facilitate the movement of the tension testing device. One or more reinforcing ribs 12 can be added between the base 1 and the support rod 2 to enhance the connection strength of the tension testing device structure. The reinforcing ribs 12 can be directly corresponding to the horizontal bar and the vertical bar.

[0028] A control box 3 is installed on the support rod 2. The control box 3 can be set at the lower rear side of the support rod 2, and the center of the rear side of the control box 3 is connected to the support rod 2. At this time, the vertical rod, the test track 4 and the ring column assembly in the sliding assembly are respectively set on both sides of the support rod 2. The position design of the control box 3 can play a certain role in gravity balance, which can enhance the stability of the tension testing device during operation.

[0029] The sliding assembly includes a ring-and-column assembly and a power component. The ring-and-column assembly can have a cylindrical structure and consists of two parts: a fixed upper semi-circular ring-and-column 6 and a movable lower semi-circular ring-and-column 5. The power component is correspondingly positioned to the lower semi-circular ring-and-column 5 and is used to control the vertical translation of the lower semi-circular ring-and-column 5 on the test track 4. The power component is connected to the control box 3. The power component can be a motor. The upper and lower semi-circular ring-and-column 6 and 5 simulate the waist and hip contours of an infant and can be used to test by looping elastic bands or items containing elastic bands. The movable circumference of the upper and lower semi-circular ring-and-column 5 (in conjunction with...) Figure 2 As shown, the circumference can be "S1+S2+L+L". When the upper semicircular ring column 6 and the lower semicircular ring column 5 are cut open by the same plane parallel to the test track 4, the cross-section of the upper semicircular ring column 6 and the cross-section of the lower semicircular ring column 5 both include an outer arc line and a straight line connected to the outer arc line. S1 is the circumference of the outer arc line of the upper semicircular ring column 6, and S2 is the circumference of the outer arc line of the upper semicircular ring column 5. S1 and S2 are constant values, and L is the distance from the upper semicircular ring column 6 to the lower semicircular ring column 5. By changing the size of L, the purpose of controlling the change of circumference can be achieved. The range is 325-1350 mm.

[0030] The surfaces of the upper semi-circular ring sleeve 6 and the lower semi-circular ring sleeve 5 are both smooth and flat. The upper semi-circular ring sleeve 6 and the lower semi-circular ring sleeve 5 can be made of hard plastic and can be integrally injection molded.

[0031] The upper semi-circular sleeve 6 is horizontally fixed to the top of the test track 4. A pressure sensor can be embedded in the upper semi-circular sleeve 6 and / or the lower semi-circular sleeve 5 as a force sensing component. The pressure sensor is connected to the control box 3. The maximum range of the pressure sensor can be set as needed, for example, to 80 Pa.

[0032] A display 7 connected to the control box 3 can be added to the upper front side of the support rod 2. The display 7 has a screen 8, and the upper part of the display 7 is also equipped with an alarm light 9, a start test button 10, and a stop reset knob 11. The start test button 10 is used to start the power component to control the lower semi-circular ring column 5 to move vertically to the set circumference position on the test track 4. The stop reset knob 11 is used to stop the operation of the power component in an emergency and automatically move the lower semi-circular ring column 5 to the initial zero point position. The test completion alarm light 9 can be used to remind whether the test is completed and prevent test errors caused by accidental touch during the test.

[0033] The control box 3 is equipped with a control panel, etc. The specific structure of the control box 3 and the control program used can be directly implemented using existing technology, so they will not be described in detail here. The control box 3 can obtain the value sensed by the pressure sensor and display the value directly on the display screen 8.

[0034] The aforementioned display screen 8 can be a touch screen, allowing manual real-time adjustment of preset information. For example, four fixed circumferences can be set, and the display screen 8 will show the instantaneous pressure value sensed by the pressure sensor for each circumference. The order of the circumference settings can be changed to read the tensile and retraction tension values ​​for the same circumference. For instance, setting 4-5 circumference values ​​in the order of 360, 400, 500, and 400 will yield two tension data points for a circumference of 400 (the values ​​sensed by the pressure sensor can be used as tension data). The first is the tension during the outward movement, and the second is the tension during the return movement. These two force values ​​are different (generally, the return force is less than the outward force). This also simulates the change in waist circumference before and after a child eats, resulting in variations in the tightness of the garment. This adjustment process can be implemented using existing technology and will not be elaborated upon here.

[0035] The test method for the above tension testing device:

[0036] Before testing, the initial circumference can be set, i.e., the initial position of the lower semicircular ring column 5; after starting the tension testing device, first set the circumference parameter to be stretched (the circumference range and stretching sequence can be set). After setting, you can click the automatic button on the display screen to return to the monitoring screen.

[0037] Place the sample ring onto the ring column assembly, aligning the upper and lower ends of the sample with the edges of the upper semicircular ring column 6 and the lower semicircular ring column 5; after placing the sample on the ring, click the start test button 10, and the tension testing device will begin testing;

[0038] The lower semicircular ring column 5 is controlled by a power component to start moving vertically on the test track 4. When it moves to the set circumference parameter, a real-time reading is taken and recorded and displayed on the monitoring screen.

[0039] After the test is completed, the lower semicircular ring 5 will move back to its initial circumference position, and the test completion warning light 9 will light up, indicating that the test is complete.

[0040] The aforementioned undisclosed matters can be directly implemented using existing technologies, so they will not be elaborated upon here.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tension testing device, characterized in that, The device includes a base with a vertical support rod. The front end of the support rod has a test track for vertical sliding. A sliding assembly capable of looping around elastic bands or items containing elastic bands is installed on the test track. A force-sensing component is correspondingly provided for the sliding assembly. The sliding assembly includes a looping post assembly and a power component. The looping post assembly consists of two parts: a fixed upper semi-circular looping post and a movable lower semi-circular looping post. The power component is correspondingly positioned to the lower semi-circular looping post and controls its vertical translation on the test track. The upper and lower semi-circular looping posts simulate the waist and hip contours of an infant for testing by looping around elastic bands or items containing elastic bands.

2. The tension testing device according to claim 1, characterized in that, Items containing elastic bands include pull-up diapers and items with cut-out elastic bands, including waist elastic bands, abdominal elastic bands, and full elastic bands.

3. The tension testing device according to claim 1 or 2, characterized in that, The base has a T-shaped structure, including a horizontal bar and a vertical bar. The bottom of the support bar is connected to the center of the upper surface of the horizontal bar, and one end of the vertical bar is connected to the center of the front side of the horizontal bar.

4. The tension testing device according to claim 3, characterized in that, The bottom of the base can also be equipped with multiple rollers to facilitate the movement of the tension testing device; One or more reinforcing ribs are added between the base and the support rod.

5. The tension testing device according to claim 3, characterized in that, A control box is mounted on the support rod. The control box is located on the lower rear side of the support rod, and the center of the rear side of the control box is connected to the support rod. The power component is connected to the control box.

6. The tension testing device according to claim 3, characterized in that, The movable circumference of the upper and lower semicircular rings is 325-1350 mm.

7. The tension testing device according to claim 3, characterized in that, The surfaces of both the upper and lower semicircular rings are smooth and flat. The upper and lower semicircular rings are made of hard plastic and are integrally injection molded.

8. The tension testing device according to claim 5, characterized in that, The upper semicircular ring is horizontally fixed at the top of the test track. Pressure sensors are embedded in the upper semicircular ring and / or the lower semicircular ring as force sensing components. The pressure sensors are connected to the control box.

9. The tension testing device according to claim 5, characterized in that, The upper front of the support rod is equipped with a display screen connected to the control box. The display screen has an indicator light, a start test button, and a stop reset knob. The start test button is used to start the power component to control the lower semi-circular ring column to move vertically to the set circumference on the test track. The stop reset knob is used to stop the power component from performing the current command and move the lower semi-circular ring column back to the initial zero point position. The test completion indicator light can be used to indicate whether the test is completed.

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