A testing device for the tensile strength of a flushable spunlace nonwoven fabric

Abstract

The present invention belongs to the technical field of non-woven fabric tensile testing, and specifically relates to a tensile strength testing device for water-soluble non-woven fabric that can be washed away, including a test bench. The test bench is composed of multiple support frames. Above the test bench, there are two frame-shaped plates installed, and they are designed to be away from each other. Between the two frame-shaped plates, two rotating shafts are rotatably arranged, and winding rollers are fixedly installed on the outer circumferential surfaces of the two rotating shafts. One of the rotating shafts drives the connecting gear connected to it to rotate, and the connecting gear will drive the other connecting gear meshed with it to rotate, that is, the rotation directions of the two connecting gears are opposite. As a result, the non-woven fabric on the outer circumferential surface of the winding roller will slowly change from a loose state to a straightened state and finally break. When changing from the initial straightened state to the broken state, the tensile force that the non-woven fabric can withstand can be calculated through the testing mechanism. The operation is relatively convenient, and the testing environment is safe.

Description

Technical Field

[0001] The present invention belongs to the technical field of non-woven fabric tensile testing, and specifically relates to a tensile strength testing device for disposable spunlace non-woven fabric. Background Art

[0002] Non-woven fabric, also known as non-woven cloth, is composed of oriented or random fibers. It is called cloth because of its appearance and certain properties. High-pressure micro water jets are sprayed onto one or more fiber webs to entangle the fibers together, so that the fiber web is strengthened and has a certain strength. The obtained fabric is spunlace non-woven fabric. Since the spunlace non-woven fabric product has high performance, it is necessary to test its tensile strength during manufacturing.

[0003] Some solutions have also been proposed for non-woven fabric tensile testing in the prior art. For example, a patent application with the publication number CN116793851A discloses a non-woven fabric tensile strength testing device, including a machine table and a pair of specimen carriers. The specimen carriers are arranged on the machine table, and each specimen carrier is provided with a winding roller for winding and fixing the specimen. It also includes: a guiding mechanism, which includes a pair of transmission racks and an intermediate gear that meshes with both of the pair of transmission racks; the pair of transmission racks are movably arranged at the bottom of the machine table, and the upper parts of the pair of transmission racks are connected to the pair of specimen carriers one by one. The non-woven fabric tensile strength testing device in this embodiment has the advantage of preventing the specimen from retracting during the process of being stretched to the fracture peak.

[0004] Although the above technical solution solves the problem of specimen retraction during the process of stretching the non-woven fabric to the fracture peak, there are still other problems in specific testing, such as being unable to accurately observe the tensile force that the non-woven fabric can withstand from being taut to breaking, and it is also more troublesome to calculate the tensile force.

[0005] Therefore, the present invention provides a tensile strength testing device for disposable spunlace non-woven fabric. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A tensile strength testing device for a flushable spunlace non-woven fabric according to the present invention includes a test bench, which is composed of a plurality of support frames. Above the test bench, there is a frame-shaped plate. There are two frame-shaped plates, and they are designed to be away from each other. Between the two frame-shaped plates, two rotating shafts are rotatably arranged. On the outer peripheral surfaces of the two rotating shafts, winding rollers are fixedly installed. On the edges of the outer peripheral surfaces of the two rotating shafts, connecting gears are fixedly installed. The two connecting gears are meshed and connected. The end of one of the rotating shafts is connected to the output end of an external motor. A fixing mechanism is arranged on the outer peripheral surface of the winding roller, and the fixing mechanism is used to fix the non-woven fabric. A testing mechanism is arranged on the side wall of the frame-shaped plate, and the testing mechanism is used to test the tensile force borne by the non-woven fabric.

[0008] Preferably, the fixing mechanism includes vertical plates fixedly installed on the outer peripheral surface of the rotating shaft. The number of vertical plates on the outer peripheral surface of one of the rotating shafts is two, and they are respectively arranged at the two edges of the outer peripheral surface of the rotating shaft; on the opposite surfaces of adjacent vertical plates, electric telescopic rods are installed. The telescopic end of each electric telescopic rod is fixedly installed with a U-shaped bracket. Adjacent U-shaped brackets are jointly installed with a pressing piece. At the corresponding position on the outer peripheral surface of the winding roller, a pressing groove is opened.

[0009] Preferably, the shape of the pressing piece is adapted to the shape of the pressing groove. The shape of the pressing piece is conical, and the material of the pressing piece is rubber; during operation, since the material of the pressing piece is rubber and is adapted to the shape of the pressing groove, it can not only ensure the stable fixation of the non-woven fabric, but also avoid damaging the surface of the non-woven fabric and affecting its tensile strength test.

[0010] Preferably, the surface of the pressing piece is provided with friction protrusions. On the opposite surfaces of adjacent vertical plates, sliding grooves are opened. Adjacent electric telescopic rods are respectively installed inside the corresponding sliding grooves; during operation, with the friction protrusions arranged on the pressing piece, it is convenient to fix the non-woven fabric without damage. The sliding grooves are designed to ensure that the pressing piece can be completely inserted into the pressing groove, thus facilitating the subsequent tensile force test of the non-woven fabric by the testing mechanism.

[0011] Preferably, the testing mechanism includes a stop post fixedly installed on the side wall of one of the frame-shaped plates. At the end of the stop post away from the frame-shaped plate, a circular frame is installed. Inside the circular frame, a trigger rod is slidably arranged. The shape of the bottom of the trigger rod is spherical. Inside the circular frame, a trigger unit is arranged, and the trigger unit is used to trigger the test when the non-woven fabric changes from a loose state to a taut state. A plurality of trigger rods are arranged between adjacent two winding rollers and are designed in a linear array.

[0012] Preferably, the testing mechanism further includes a dial fixedly installed on the outer surface of one of the connecting gears. An L-shaped bracket is installed at a position corresponding to the dial on the side wall of one of the frame-shaped plates. A marking pen is slidably installed at the end of the L-shaped bracket. The end of the marking pen corresponds to the scale on the surface of the dial. A magnetic block is installed on the side of the marking pen away from the dial. An electromagnet corresponding to the magnetic block is installed on the upper side of the side wall of the L-shaped bracket.

[0013] Preferably, a sliding frame adapted to the marking pen is installed at the end of the L-shaped bracket. A telescopic spring is sleeved on the outer peripheral surface of the marking pen. One end of the telescopic spring is connected to the outer wall of the marking pen, and the other end is connected to the side wall of the sliding frame. During operation, when the electromagnet is energized and pushes the marking pen to move, the marking pen will simultaneously pull the telescopic spring on its outer surface. When the electromagnet is de-energized and the connecting gear stops rotating, under the restoration of the elastic force of the telescopic spring, the marking pen can be quickly restored, facilitating the staff to calculate the angle marked by the marking pen on the surface of the dial. Moreover, the sliding frame is designed to limit the moving position of the marking pen, facilitating the subsequent pressing of the marking pen on the surface of the dial.

[0014] Preferably, the triggering unit includes a contact point one installed on the top wall of the circular frame. A contact point two is installed at the top of the triggering rod. The contact point one and the contact point two are arranged on the same axis.

[0015] Preferably, a limiting groove is formed on the inner wall of the circular frame. A limiting column rod is fixedly installed on the outer peripheral surface of the triggering rod. The limiting column rod is slidably arranged inside the limiting groove. During operation, when the triggering rod moves upward, the triggering rod will simultaneously drive the limiting column rod on its side wall to move. The limiting column rod will move inside the limiting groove. Under the limitation of the limiting groove, it can ensure the perfect contact between the contact point one and the contact point two, facilitating the subsequent movement of the marking pen.

[0016] Preferably, the shape of the bottom of the triggering rod is spherical, and the bottom of the triggering rod is a gravity ball. With such a design, it is convenient for the non-woven fabric to loosen and break, and the contact point one and the contact point two will be separated from each other.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For the tensile strength testing device for disposable spunlace non-woven fabric of the present invention, by controlling the external motor to drive one of the rotating shafts to rotate, one of the rotating shafts drives the connecting gear connected to it to rotate, and the connecting gear drives the other connecting gear meshed with it to rotate, that is, the rotating directions of the two connecting gears are opposite. Thus, the non-woven fabric on the outer peripheral surface of the winding roller will slowly change from a loose state to a straightened state and finally break. When changing from the initial straightened state to the broken state, the tensile force that the non-woven fabric can withstand can be calculated through the testing mechanism. The operation is relatively convenient, and the testing environment is safe.

[0019] 2. The tensile strength testing device for the flushable spunlace non-woven fabric according to the present invention is such that the marking pen moves towards the side close to the dial, enabling the marking pen to mark when the non-woven fabric first becomes straightened. As the connecting gear and the dial rotate, the marking pen continuously marks on the surface of the dial, that is, the marking pen draws a circle on the dial. When the non-woven fabric is straightened until it breaks, that is, the non-woven fabric no longer presses against the trigger rod, then the triggering unit disconnects, that is, the electromagnet block is powered off and the external controller controls the connecting gear to stop operating. Subsequently, the staff can indirectly calculate the tensile force that the non-woven fabric can withstand through the angle drawn by the marking pen on the dial, and the operation is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic structural view of the vertical plate part of the present invention;

[0023] Figure 3 is a schematic structural view of the pressing piece part of the present invention;

[0024] Figure 4 is a schematic structural view of the winding roller part of the present invention;

[0025] Figure 5 is a schematic structural view of the stop post of the present invention;

[0026] Figure 6 is a schematic structural view of the L-shaped bracket of the present invention;

[0027] Figure 7 is a schematic structural view of the non-woven fabric in the loosened state of the present invention;

[0028] Figure 8 is a schematic structural view of the non-woven fabric in the straightened state of the present invention;

[0029] Figure 9 is a schematic structural view of the trigger rod of the present invention;

[0030] Figure 10 is a schematic structural view of the marking pen of the present invention;

[0031] Figure 11 is a schematic structural view of the circular frame of the present invention;

[0032] Figure 12 is a schematic cross-sectional view of the trigger rod of the present invention;

[0033] Figure 13It is a schematic structural diagram of all trigger rods in the present invention during operation.

[0034] In the figure: 1, test bench; 2, frame-shaped plate; 201, stop column; 3, rotating shaft; 301, winding roller; 4, connecting gear; 5, vertical plate; 6, sliding groove; 601, electric telescopic rod; 602, U-shaped bracket; 7, pressing piece; 8, pressing groove; 9, circular frame; 10, trigger rod; 11, scale disk; 12, L-shaped bracket; 121, sliding frame; 13, marking pen; 131, magnetic block; 14, electromagnetic block; 15, telescopic spring; 16, contact point one; 17, contact point two; 18, limiting groove; 19, limiting column rod. Specific embodiments

[0035] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0036] As Figures 1 to 6 shown, a tensile strength testing device for disposable spunlace non-woven fabric according to an embodiment of the present invention includes a test bench 1, the test bench 1 is composed of a plurality of support frames, a frame-shaped plate 2 is installed above the test bench 1, two frame-shaped plates 2 are provided, and they are designed to be away from each other. Two rotating shafts 3 are rotatably arranged between the two frame-shaped plates 2. Winding rollers 301 are fixedly installed on the outer circumferential surfaces of the two rotating shafts 3. Connecting gears 4 are fixedly installed at the edges of the outer circumferential surfaces of the two rotating shafts 3. The two connecting gears 4 are meshed with each other. The end of one of the rotating shafts 3 is connected to the output end of an external motor. A fixing mechanism is arranged on the outer circumferential surface of the winding roller 301 for fixing the non-woven fabric. A testing mechanism is arranged on the side wall of the frame-shaped plate 2 for testing the tensile force borne by the non-woven fabric;

[0037] During operation, when it is necessary to test the tensile strength of the non-woven fabric, referring to the attached Figure 1 and Figure 2 shown, first wind one end of the non-woven fabric around the outer surface of one of the winding rollers 301, then wind the other end of the non-woven fabric around the outer surface of the other winding roller 301. Subsequently, the non-woven fabric is fixed by the fixing mechanism on the outer circumferential surfaces of the two winding rollers 301. Then, control the external motor to drive one of the rotating shafts 3 to rotate. One of the rotating shafts 3 drives the connecting gear 4 connected thereto to rotate. The connecting gear 4 will drive the other connecting gear 4 meshed with it to rotate, that is, the two connecting gears 4 rotate in opposite directions. Thus, the non-woven fabric on the outer circumferential surface of the winding roller 301 will slowly change from a loose state to a straightened state and finally break. When changing from the initial straightened state to the broken state, the tensile force that the non-woven fabric can bear can be calculated through the testing mechanism. The operation is relatively convenient and the testing environment is safe.

[0038] The fixing mechanism includes a vertical plate 5 fixedly installed on the outer peripheral surface of the rotating shaft 3. There are two vertical plates 5 on the outer peripheral surface of one of the rotating shafts 3, and they are respectively arranged at two edges of the outer peripheral surface of the rotating shaft 3; electric telescopic rods 601 are installed on the opposite surfaces of adjacent vertical plates 5. The telescopic end of each electric telescopic rod 601 is fixedly installed with a U-shaped bracket 602. Adjacent U-shaped brackets 602 jointly install a pressing piece 7. A pressing groove 8 is formed at a position corresponding to the outer peripheral surface of the winding roller 301 and the pressing piece 7.

[0039] During operation, when the non-woven fabric is wound around the outer peripheral surface of the winding roller 301, at this time, control the two electric telescopic rods 601 to move synchronously. The telescopic ends of the two electric telescopic rods 601 simultaneously drive the U-shaped bracket 602 and the pressing piece 7 to move downward, so that the pressing piece 7 moves toward the side close to the pressing groove 8, that is, the pressing piece 7 can press the non-woven fabric on the outer peripheral surface of the winding roller 301. The pressing method of the non-woven fabric on the outer peripheral surface of the other winding roller 301 is the same. Through this design, it is convenient for subsequent tensile strength testing of the non-woven fabric, and the stability of the non-woven fabric during the stretching process is ensured, ensuring that the breaking point of the non-woven fabric is located between the two winding rollers 301, and it is convenient to record the tensile force borne by the non-woven fabric.

[0040] As Figures 3 to 7 shown, the shape of the pressing piece 7 is adapted to the shape of the pressing groove 8. The shape of the pressing piece 7 is conical, and the material of the pressing piece 7 is rubber; during operation, since the material of the pressing piece 7 is rubber and is adapted to the shape of the pressing groove 8, it can not only ensure the stable fixation of the non-woven fabric, but also avoid damaging the surface of the non-woven fabric and affecting its tensile strength testing.

[0041] The surface of the pressing piece 7 is provided with friction protrusions. The opposite surfaces of adjacent vertical plates 5 are respectively provided with chutes 6. Adjacent electric telescopic rods 601 are respectively installed inside the corresponding chutes 6; during operation, the friction protrusions are provided on the pressing piece 7, which is convenient for the non-destructive fixation of the non-woven fabric. The chutes 6 are designed to ensure that the pressing piece 7 can be completely inserted into the pressing groove 8, so as to facilitate the subsequent tensile force testing of the non-woven fabric by the testing mechanism.

[0042] As Figures 3 to 9 shown, the testing mechanism includes a stop post 201 fixedly installed on the side wall of one of the frame-shaped plates 2. A circular frame 9 is installed at the end of the stop post 201 away from the frame-shaped plate 2. A trigger rod 10 is slidably arranged inside the circular frame 9. The bottom of the trigger rod 10 is spherical. A trigger unit is arranged inside the circular frame 9. The trigger unit is used to trigger the test when the non-woven fabric changes from a loose state to a straightened state. A plurality of trigger rods 10 are arranged between adjacent two winding rollers 301 and are designed in a linear array.

[0043] During operation, in the initial state, that is, when both ends of the non-woven fabric are wound around the outer peripheral surface of the winding roller 301 respectively, refer to the attached Figure 7 As shown, at this time, the non-woven fabric is in a loose state. As is well known, the non-woven fabric cannot be subjected to a tensile strength test in a loose state. Only when it reaches a straightened state and then breaks can the tensile force borne by the non-woven fabric be measured; at this time, the Figure 7 As shown, the spherical head of the trigger rod 10 is located on the surface of the non-woven fabric in a loose state, and the trigger unit is not activated at this time. When the two winding rollers 301 rotate in opposite directions, the non-woven fabric will slowly change from a loose state to a straightened state, that is, when the non-woven fabric becomes straightened, its surface will slowly press against the bottom of the trigger rod 10 until the trigger rod 10 drives the trigger unit to operate, so that the trigger unit drives the test mechanism on the other side to conduct a test, which is relatively convenient to use.

[0044] It should be noted that, refer to the attached Figure 13 As shown, a plurality of trigger rods 10 are arranged between two adjacent winding rollers 301 and are designed in a linear array. When the non-woven fabric changes from a loose state to a straightened state, all the trigger rods 10 will be pressed against the entire straightened surface of the non-woven fabric as shown in the attached Figure 13 As shown. When the non-woven fabric is gradually pulled and broken, when the break point appears at one position of one of the trigger rods 10 of the non-woven fabric, the contact point one 16 and the contact point two 17 above will be separated from each other, that is, the initial break of the non-woven fabric can be recorded at this time. It should be noted that the meaning of break here is that the non-woven fabric is not completely split, but only partially broken; when the non-woven fabric changes from the initial break to complete break, all the trigger rods 10 will completely separate, and at this time, the external controller will record again;

[0045] It should be noted that the external control system controls all the trigger rods 10. When one of the trigger rods 10 changes, the control system will record once, and the triggering method of the other trigger rods 10 is the same.

[0046] As Figures 4 to 12 shown, the test mechanism further includes a dial 11 fixedly installed on the outer surface of one of the connecting gears 4, and an L-shaped bracket 12 is installed at a corresponding position on the side wall of one of the frame-shaped plates 2. A marking pen 13 is slidably installed at the end of the L-shaped bracket 12. The end of the marking pen 13 corresponds to the scale on the surface of the dial 11. A magnetic block 131 is installed on the side of the marking pen 13 away from the dial 11, and an electromagnet 14 corresponding to the magnetic block 131 is installed on the upper side of the side wall of the L-shaped bracket 12;

[0047] During operation, when the trigger unit starts to operate, the external controller is powered on and operates, controlling the electromagnet block 14 to be charged. After the electromagnet block 14 is charged, it generates magnetism, and the magnetism is the same as that of the magnetic block 131. According to the principle of like poles repelling each other, the magnetic block 131 will move away from the electromagnet block 14, that is, the marking pen 13 will move towards the side close to the scale disk 11, so that when the non-woven fabric becomes straight for the first time, the marking pen 13 can make a mark. And as the connecting gear 4 and the scale disk 11 rotate, the marking pen 13 will continuously mark the surface of the scale disk 11, that is, the marking pen 13 will draw a circle on the scale disk 11; when the non-woven fabric is straightened and until it breaks, that is, the non-woven fabric no longer presses against the trigger rod 10, then the trigger unit disconnects, that is, the electromagnet block 14 is powered off and the external controller will control the connecting gear 4 to stop operating. Subsequently, the staff can indirectly calculate the tensile force that the non-woven fabric can withstand through the angle drawn by the marking pen 13 on the scale disk 11, and the operation is relatively convenient;

[0048] It should be noted that in the embodiment of the present invention, the marking pen 13 is made of erasable ink, that is, after a single test on the non-woven fabric is completed, the marking traces on the surface of the scale disk 11 can be erased;

[0049] At the same time, it should be noted that the marking pen 13 is close to the scale disk 11, that is, when the electromagnet block 14 is powered on, the marking pen 13 can quickly press on the surface of the scale disk 11, improving the accuracy of the non-woven fabric tensile test.

[0050] The end of the L-shaped bracket 12 is provided with a sliding frame 121 adapted to the marking pen 13. A telescopic spring 15 is sleeved on the outer peripheral surface of the marking pen 13. One end of the telescopic spring 15 is connected to the outer wall of the marking pen 13, and the other end is connected to the side wall of the sliding frame 121; during operation, when the electromagnet block 14 is charged and pushes the marking pen 13 to move, the marking pen 13 will simultaneously pull the telescopic spring 15 on its outer surface. When the electromagnet block 14 is powered off and the connecting gear 4 stops operating, under the restoration of the elastic force of the telescopic spring 15, the marking pen 13 can be quickly restored, facilitating the staff to calculate the angle marked by the marking pen 13 on the surface of the scale disk 11; and the sliding frame 121 is designed to limit the moving position of the marking pen 13, facilitating the subsequent pressing of the marking pen 13 on the surface of the scale disk 11.

[0051] The trigger unit includes a contact one 16 installed on the top wall of the circular frame 9, and a contact two 17 is installed on the top of the trigger rod 10. The contact one 16 and the contact two 17 are arranged on the same axis; during operation, as Figure 7 shown, when the non-woven fabric is in a loose state, the bottom of the trigger rod 10 is always on the surface of the non-woven fabric. When the non-woven fabric changes from a loose state to a straight state, that is, from attached Figure 7 becomes attached Figure 8When shown as such, the trigger rod 10 will move upward. Subsequently, the second contact 17 at the top of the trigger rod 10 will contact the first contact 16 on the inner wall of the circular frame 9. At this time, the external circuit is connected, thereby controlling the electromagnet block 14 to be energized and starting the tensile strength test of the non-woven fabric.

[0052] A limiting groove 18 is provided on the inner wall of the circular frame 9. A limiting post rod 19 is fixedly installed on the outer peripheral surface of the trigger rod 10. The limiting post rod 19 is slidably arranged inside the limiting groove 18. During operation, when the trigger rod 10 moves upward, the trigger rod 10 will drive the limiting post rod 19 on the side wall to move simultaneously. The limiting post rod 19 will move inside the limiting groove 18. Under the limitation of the limiting groove 18, it can ensure the perfect contact between the first contact 16 and the second contact 17, thus facilitating the subsequent movement of the marking pen 13.

[0053] The bottom of the trigger rod 10 is spherical, and the bottom of the trigger rod 10 is a gravity ball. With such a design, it is convenient for the first contact 16 and the second contact 17 to separate from each other when the non-woven fabric loosens and breaks.

[0054] During operation, when a tensile strength test of the non-woven fabric is required, refer to the attached Figure 1 and Figure 2 As shown, first wind one end of the non-woven fabric around the outer surface of one of the winding rollers 301, then wind the other end of the non-woven fabric around the outer surface of the other winding roller 301. Subsequently, fix the non-woven fabric through the fixing mechanism on the outer peripheral surface of the two winding rollers 301. Then control the external motor to drive one of the rotating shafts 3 to rotate. One of the rotating shafts 3 drives the connecting gear 4 connected thereto to rotate. The connecting gear 4 will drive the other connecting gear 4 meshing with it to rotate, that is, the rotation directions of the two connecting gears 4 are opposite. Thus, the non-woven fabric on the outer peripheral surface of the winding roller 301 will slowly change from a loose state to a straightened state and finally break. When changing from the preliminary straightened state to the broken state, the tensile force that the non-woven fabric can bear can be calculated through the test mechanism. The operation is relatively convenient, and the test environment is safe.

[0055] When the non-woven fabric is wound around the outer peripheral surface of the winding roller 301, at this time, control the two electric telescopic rods 601 to move synchronously. The telescopic ends of the two electric telescopic rods 601 drive the U-shaped bracket 602 and the pressing piece 7 to move downward simultaneously, so that the pressing piece 7 moves toward the side close to the pressing groove 8, that is, the pressing piece 7 can press the non-woven fabric on the outer peripheral surface of the winding roller 301. The pressing method of the non-woven fabric on the outer peripheral surface of the other winding roller 301 is also the same. Through this design, it is convenient for the subsequent tensile strength test of the non-woven fabric, and ensures the stability of the non-woven fabric during the stretching process, ensures that the breaking point of the non-woven fabric is located between the two winding rollers 301, and is convenient for recording the tensile force borne by the non-woven fabric.

[0056] In the initial state, that is, when both ends of the non-woven fabric are wound around the outer peripheral surface of the winding roller 301, refer to the appendix Figure 7 As shown, at this time, the non-woven fabric is in a loose state. As is well known, the non-woven fabric cannot be subjected to a tensile strength test in a loose state. Only when it reaches a straight state and then breaks can the tensile force borne by the non-woven fabric be measured. At this time, the Figure 7 spherical head of the trigger rod 10 shown is located on the surface of the loose non-woven fabric, and the trigger unit is not activated at this time. When the two winding rollers 301 rotate in opposite directions, the non-woven fabric will slowly change from a loose state to a straight state, that is, when the non-woven fabric becomes straight, its surface will slowly press against the bottom of the trigger rod 10 until the trigger rod 10 drives the trigger unit to operate, so that the trigger unit drives the test mechanism on the other side to conduct a test, which is relatively convenient to use;

[0057] When the trigger unit starts to operate, at this time, the external controller is powered on and operates, and controls the electromagnet 14 to be charged. After the electromagnet 14 is charged, it generates magnetism, and the magnetism is the same as that of the magnetic block 131. According to the principle of like poles repelling each other, the magnetic block 131 will move to the side away from the electromagnet 14, that is, the marking pen 13 will move to the side close to the scale disk 11, so that the marking pen 13 can mark when the non-woven fabric first becomes straight. And as the connecting gear 4 and the scale disk 11 rotate, the marking pen 13 will keep marking on the surface of the scale disk 11, that is, the marking pen 13 will draw a circle on the scale disk 11; when the non-woven fabric is straightened and until it breaks, that is, the non-woven fabric no longer presses against the trigger rod 10, then the trigger unit is disconnected, that is, the electromagnet 14 is powered off and the external controller will control the connecting gear 4 to stop operating. Subsequently, the staff can indirectly calculate the tensile force that the non-woven fabric can withstand through the angle drawn by the marking pen 13 on the scale disk 11, and the operation is relatively convenient;

[0058] As Figure 7 shown, when the non-woven fabric is in a loose state, the bottom of the trigger rod 10 is always located on the surface of the non-woven fabric. When the non-woven fabric changes from a loose state to a straight state, that is, from Figure 7 to Figure 8 shown, the trigger rod 10 will move upward, and then the contact point two 17 at the top of the trigger rod 10 will contact the contact point one 16 on the inner wall of the circular frame 9. At this time, the external circuit is connected, so as to control the electromagnet 14 to be charged and start the tensile strength test on the non-woven fabric.

[0059] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A tensile strength test device for flushable spunlace nonwoven fabrics, characterized in that: The test bench comprises a test bench, which is composed of a plurality of support frames, a frame-shaped plate is installed above the test bench, two frame-shaped plates are provided, and are designed to be far away from each other, two rotating shafts are rotatably provided between the two frame-shaped plates, winding rollers are fixedly installed on the outer circumferences of the two rotating shafts, connecting gears are fixedly installed on the edges of the outer circumferences of the two rotating shafts, and the two connecting gears are meshed and connected, one end of the rotating shaft is connected to the output end of an external motor, a fixing mechanism is provided on the outer circumference of the winding roller, and the fixing mechanism is used to fix the non-woven fabric, and a testing mechanism is provided on the side wall of the frame-shaped plate, and the testing mechanism is used to test the tensile force borne by the non-woven fabric; The testing mechanism comprises a stop column fixedly mounted on one of the side walls of the frame-shaped plate, a circular frame is mounted on the end of the stop column away from the frame-shaped plate, a trigger rod is slidably arranged inside the circular frame, the bottom of the trigger rod is spherical, a trigger unit is arranged inside the circular frame, and the trigger unit is used to perform a trigger test when the non-woven fabric changes from a loose state to a stretched state; The testing mechanism also includes a dial fixedly mounted on the outer surface of one of the connecting gears, an L-shaped bracket is mounted at a position corresponding to the dial on the side wall of one of the frame-shaped plates, a marking pen is slidably mounted on the end of the L-shaped bracket, the end of the marking pen corresponds to the scale on the surface of the dial, a magnetic block is mounted on the side of the marking pen away from the dial, and an electromagnetic block corresponding to the magnetic block is mounted on the upper side of the side wall of the L-shaped bracket; A sliding frame adapted to the marking pen is installed at the end of the L-shaped bracket, and a telescopic spring is sleeved on the outer peripheral surface of the marking pen, one end of the telescopic spring is connected to the outer wall of the marking pen, and the other end is connected to the side wall of the sliding frame; The trigger unit comprises a contact 1 mounted on the top wall of the circular frame, a contact 2 is mounted on the top of the trigger rod, and the contact 1 and the contact 2 are arranged on the same axis; When the non-woven fabric is in a loose state, the bottom of the trigger rod is always on the surface of the non-woven fabric. When the non-woven fabric changes from a loose state to a stretched state, the trigger rod moves upward, and then the contact 2 at the top of the trigger rod contacts the contact 1 on the inner wall of the circular frame. At this time, the external circuit is connected, thereby controlling the electromagnetic block to be charged and starting to perform tensile strength test on the non-woven fabric. When the electromagnetic block is charged, it generates magnetism, and the magnetism is the same as that of the magnetic block. According to the principle of like charges repel each other, the magnetic block will move to the side away from the electromagnetic block, that is, the marking pen will move to the side close to the dial, so that the marking pen can mark the non-woven fabric when it becomes stretched straight for the first time, and as the connecting gear and the dial rotate, the marking pen will keep marking the surface of the dial, that is, the marking pen will draw a circle on the dial.

2. The tensile strength testing device for flushable spunlace nonwoven fabric according to claim 1, characterized in that: The fixing mechanism includes a vertical plate fixedly installed on the outer circumference of the rotating shaft, wherein there are two vertical plates on the outer circumference of the rotating shaft, and they are respectively arranged at the two edges of the outer circumference of the rotating shaft; electric telescopic rods are installed on the opposite surfaces of adjacent vertical plates, and a U-shaped bracket is fixedly installed on the telescopic end of each electric telescopic rod, and a clamping plate is commonly installed on the adjacent U-shaped brackets, and a clamping groove is opened at the outer circumference of the winding roller and the corresponding position of the clamping plate.

3. The tensile strength testing device for flushable spunlace nonwoven fabric according to claim 2, characterized in that: The shape of the pressing sheet is matched with the shape of the pressing groove, the shape of the pressing sheet is conical, and the material of the pressing sheet is rubber.

4. The tensile strength testing device for flushable spunlace nonwoven fabric according to claim 2, characterized in that: The surface of the pressing plate is provided with friction protrusions, and the opposite surfaces of the adjacent vertical plates are provided with sliding grooves, and the adjacent electric telescopic rods are respectively installed in the corresponding sliding grooves.

5. The tensile strength testing device for flushable spunlace nonwoven fabric according to claim 1, characterized in that: The inner wall of the circular frame is provided with a limiting groove, the outer peripheral surface of the trigger rod is fixedly mounted with a limiting column rod, and the limiting column rod is slidably arranged inside the limiting groove.

6. The tensile strength testing device for flushable spunlace nonwoven fabric according to claim 1, characterized in that: The bottom of the trigger rod is spherical in shape, and the bottom of the trigger rod is a gravity ball.

Images