Carrier tape stripping force testing device and carrier tape stripping force testing method

Abstract

Provided in the present invention are a carrier tape stripping force testing device and a carrier tape stripping force testing method. The testing device comprises: a seat body; a first clamping assembly; a second clamping assembly arranged opposite the first clamping assembly in a preset direction; a transplanting assembly; and a tension meter, wherein one of the first clamping assembly and the second clamping assembly is connected to the transplanting assembly, and the other one is connected to the tension meter. The test efficiency of the carrier tape stripping force testing device is improved.

Description

Tape peeling force testing device and tape peeling force testing method

[0001] This application is based on the Chinese patent application with application number 202311712455.1 and application date of December 13, 2023, and claims the priority of the Chinese patent application. The entire content of the above patent application is hereby introduced into this application as a reference. Technical Field

[0002] The present invention relates to the technical field of semiconductor packaging, and in particular to a braid peeling force testing device and a braid peeling force testing method. Background Art

[0003] Tape is a strip-shaped carrier used to encapsulate electronic components such as capacitors, inductors, and LEDs, so that they can be automatically processed and assembled during the production process.

[0004] The tape consists of a carrier tape with slots for accommodating electronic components and a cover tape sealed to the upper side of the carrier tape. After the cover tape and carrier tape are sealed together, the peel force between the two is a key performance indicator of the tape. Specifically, the sealing force between the cover tape and the carrier tape needs to be appropriate, neither too strong nor too weak. Too strong a force will prevent the cover tape from being peeled off the carrier tape during subsequent use, while too weak a force will cause the cover tape and carrier tape to peel apart easily during storage and transportation, leading to leakage of the encapsulated electronic components.

[0005] Currently, a tape peel force tester is typically used to test the peel force of a pre-sealed tape section before encapsulating electronic components in the tape. However, existing tape peel force testers typically require manual operation, such as cutting the tape, separating the carrier and cover tape ends, and peeling the tape manually. This increases labor costs and relies entirely on the operator's judgment based on experience and intuition. Manual peeling can also lead to uneven force application, resulting in errors in judgment, affecting the accuracy of the final test, reducing product production efficiency, and affecting the continuity of production. Summary of the Invention

[0006] The purpose of the present invention is to provide a braid peeling force testing device and a braid peeling force testing method.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a braid peeling force testing device, comprising:

[0008] seat body;

[0009] a first clamping assembly, the first clamping assembly being mounted on the base and being used to clamp the head end of the braid to be tested;

[0010] a second clamping assembly, the second clamping assembly being mounted on the base and arranged opposite to the first clamping assembly along a preset direction, the second clamping assembly being used to clamp the head end of the cover tape in the braided tape to be tested;

[0011] a transplanting assembly, the transplanting assembly being used to drive the first clamping assembly and the second clamping assembly to move closer to or away from each other along the preset direction;

[0012] A tensile gauge, wherein one of the first clamping assembly and the second clamping assembly is connected to the transplanting assembly, and the other is connected to the test end of the tensile gauge.

[0013] As a further improvement of the present invention, the braid peeling force testing device further includes:

[0014] a conveying assembly disposed opposite to the first clamping assembly along a preset direction, the conveying assembly including a conveying channel for conveying the tape to be tested, the conveying channel including a discharge port open toward the first clamping assembly, a window being formed through a side of the conveying channel away from the base, and the second clamping assembly being located on the side where the window is located;

[0015] A cover tape extraction component is provided between the window and the second clamping component, and is used for extracting the cover tape from the window.

[0016] As a further improvement of the present invention, the cover tape extraction assembly includes:

[0017] Suction cup;

[0018] A driving module includes a linear driving member for driving the suction cup to move closer to or away from the window in a direction perpendicular to the plane where the window is located, and a flip driving member connected to the output end of the linear driving member and used to drive the suction cup to flip so as to switch between the window and the second clamping assembly. The suction cup is arranged at the flip output end of the flip driving member.

[0019] As a further improvement of the present invention, the cover tape extraction assembly includes two suction cups, the flip drive member includes a flip output end, and along the radial direction of the flip output end, the two suction cups are respectively arranged on opposite sides of the flip output end.

[0020] As a further improvement of the present invention, the braid peeling force testing device further comprises: a conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly comprising a conveying channel for conveying the braid to be tested, the conveying channel comprising a discharge port open toward the first clamping assembly, and the second clamping assembly being located on a side of the conveying channel away from the base;

[0021] A height-adjusting assembly is provided between the first clamping assembly and the base, and is used for adjusting the distance between the first clamping assembly and the base.

[0022] As a further improvement of the present invention, the first clamping assembly is connected to the transplanting assembly; the transplanting assembly includes a transplanting motor fixed to one end of the base body away from the second clamping assembly, a driving wheel connected to the output end of the transplanting motor, a driven wheel rotatably connected to the base body and located on the side of the first clamping assembly facing the second clamping assembly, a belt wound around the driving wheel and the driven wheel, and a fixed seat fixed on the belt, the height adjustment assembly is fixed to the fixed seat, and the first clamping assembly is fixed to the output end of the height adjustment assembly.

[0023] As a further improvement of the present invention, the braid peeling force testing device further includes:

[0024] a conveying assembly disposed opposite to the first clamping assembly along a preset direction, the conveying assembly comprising a conveying channel for conveying the braid to be tested, the conveying channel comprising a discharge port open toward the first clamping assembly;

[0025] A cutting component is provided at the discharge port for cutting the braid to be tested.

[0026] As a further improvement of the present invention, the first clamping assembly is connected to the transplanting assembly; the conveying channel has side walls located on opposite sides of the window, and the side walls are penetrated by perforations; the braid peeling force testing device further includes:

[0027] The pin assembly includes a pin facing the through-hole and a pin driving member connected to the pin. When it is necessary to test the unilateral peeling force of the braid to be tested, the pin driving member drives the pin to be inserted into the conveying channel through the through-hole.

[0028] As a further improvement of the present invention, the braid peeling force testing device also includes a conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly includes a conveying channel for conveying the braid to be tested, the conveying channel includes a discharge port open toward the first clamping assembly, and a drive groove is provided through the side of the conveying channel away from the base body; the conveying assembly also includes a pressure wheel assembly for driving the braid to be tested to move in the conveying channel from the drive groove.

[0029] As a further improvement of the present invention, the first clamping assembly includes a pressure seat connected to the seat body, a downward pressure cylinder connected to the pressure seat, and a pressure plate connected to the output end of the downward pressure cylinder; the tape peeling force testing device also includes a second sensor for sensing whether the tape to be tested reaches the pressure seat.

[0030] As a further improvement of the present invention, the tape peeling force testing device also includes a conveying component arranged opposite to the first clamping component along a preset direction, and the conveying component includes a conveying channel for conveying the tape to be tested and a pressure wheel assembly for driving the tape to be tested to move in the conveying channel.

[0031] To achieve the above-mentioned object of the invention, the present invention further provides a method for testing the peeling force of a braid based on the above-mentioned braid peeling force testing device, comprising the following steps:

[0032] Clamping: Fix the head end of the carrier tape of the tape to be tested to the first clamping assembly, and fix the head end of the cover tape to the second clamping assembly arranged opposite to the first clamping assembly in a preset direction;

[0033] Testing: driving the second clamping assembly and the first clamping assembly to move away from each other in a preset direction, thereby driving the leading end of the carrier tape and the leading end of the cover tape to move away from each other in the preset direction;

[0034] Get the peel force.

[0035] As a further improvement of the present invention, the clamping step specifically includes the following steps:

[0036] During the process of the conveying assembly forwardly conveying the tape to be tested to the first clamping assembly, the linear drive component in the cover tape extraction assembly drives the suction cup to approach and suck up the cover tape. After the suction cup approaches and sucks up the cover tape, the flip drive component in the cover tape extraction assembly drives the suction cup to flip so that the head end of the cover tape moves to the second clamping assembly, and controls the second clamping assembly to clamp the head end of the cover tape.

[0037] When the conveying assembly conveys the braid to be tested to the head end of the carrier tape and reaches the first clamping assembly, the first clamping assembly is controlled to clamp the head end of the carrier tape.

[0038] As a further improvement of the present invention, before the clamping step, the braid peeling force testing method further includes the following cutting step:

[0039] The conveying assembly conveys the braid to be tested in a forward direction until the head end of the braid to be tested reaches the first clamping assembly, controls the first clamping assembly to clamp the head end of the braid to be tested, and controls the conveying assembly to stop;

[0040] The cutting assembly located at the discharge port of the conveying assembly is controlled to cut the braid to be tested and remove the head end of the braid to be tested.

[0041] As a further improvement of the present invention, when it is necessary to test the unilateral peeling force of the braid to be tested, after the first clamping assembly clamps the head end of the braid to be tested, and before controlling the cutting assembly located at the discharge port to cut the braid to be tested and remove the head end of the braid to be tested, the braid peeling force testing method further includes the following steps:

[0042] The cover tape is sucked by the suction cup in the cover tape extraction assembly so that there is a gap between the cover tape and the carrier tape;

[0043] After the suction cup absorbs the cover tape, the pins in the drive pin assembly are inserted into the gap between the cover tape and the carrier tape on the side to be separated;

[0044] The first clamping assembly is driven to move in a direction away from the conveying assembly, and the head end of the braid to be tested is pulled synchronously in a direction away from the conveying assembly until the cover tape and the carrier tape on the side to be separated are separated;

[0045] The first clamping assembly is driven to move toward the direction close to the conveying assembly while the conveying assembly conveys the braid to be tested in the reverse direction until the first clamping assembly is reset.

[0046] The beneficial effect of the present invention is that in the braid peeling force testing device of the present invention, by setting the first clamping component and the second clamping component to be connected to the transplanting component, and the other connected to the test end of the tensile gauge, the transplanting component can control the first clamping component and the second clamping component to move away from each other at a relatively stable and uniform speed, thereby making the carrier tape and the cover tape move away from each other / peel off at a relatively stable and uniform speed, and a more accurate peeling force can be obtained, thereby reducing manual intervention in the braid peeling force testing process, reducing costs, and improving the testing efficiency of the braid peeling force testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] FIG1 is a schematic structural diagram of a braid peeling force testing device according to the present invention;

[0048] FIG2 is a side view of the upper half structure in FIG1 ;

[0049] FIG3 is a schematic structural diagram of the conveying assembly in FIG1 ;

[0050] FIG4 is a schematic structural diagram of FIG1 after removing the shielding cover, the second clamping assembly, and the conveying assembly;

[0051] 5 is a schematic structural diagram of the dynamometer, the second clamping assembly, and the cover tape extraction assembly in FIG1 ;

[0052] FIG. 6 is a schematic structural diagram of the cover tape extraction assembly in FIG. 5 from another angle. DETAILED DESCRIPTION

[0053] The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings. Referring to Figures 1 to 6 , which illustrate preferred embodiments of the present invention, it should be noted that these embodiments are not intended to limit the present invention, and any equivalent functional, methodological, or structural modifications or substitutions made by persons of ordinary skill in the art based on these embodiments fall within the scope of protection of the present invention.

[0054] It should be noted that, unless otherwise expressly specified or limited, the term "connection" should be understood in a broad sense. For example, the connection can be a direct connection or an indirect connection through an intermediate medium. It can be a fixed connection, a movable connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Furthermore, it should be understood that although the terms first, second, etc. can be used in this article to describe various elements or structures, these described objects should not be limited by the above terms. The above terms are only used to distinguish these described objects from each other.

[0055] Referring to Figures 1 to 6 , the present invention provides a tape peel force testing device 100 for testing the peel force between the carrier tape and the cover tape in a section of tape pre-sealed using preset sealing parameters before encapsulating electronic components within the tape. This test determines whether the preset sealing parameters are appropriate, thereby ensuring that the tape peel force remains within an appropriate range after the electronic components are subsequently encapsulated within the tape.

[0056] Specifically, the pre-sealed braid includes a connecting section where the long sides of the carrier tape and the cover tape are connected, and a separating section where the long sides are separated.

[0057] The braid peeling force testing device 100 includes a base 1, a first clamping assembly 2 mounted on the base 1, a second clamping assembly 3 mounted on the base 1 and arranged opposite to the first clamping assembly 2 along a preset direction, a transplanting assembly 4 for driving the second clamping assembly 3 and the first clamping assembly 2 toward or away from each other along the preset direction, a tensile gauge 5, and a control unit for controlling the operation of the braid peeling force testing device 100. One of the first clamping assembly 2 and the second clamping assembly 3 is connected to the transplanting assembly 4, and the other is connected to the testing end of the tensile gauge 5. The first clamping assembly 2, the second clamping assembly 3, the transplanting assembly 4, and the tensile gauge 5 are all in communication with the control unit. During the test, the head end of the carrier tape in the separated section of the braid to be tested is clamped by the first clamping assembly 2, and the head end of the cover tape is clamped by the second clamping assembly 3. When the transfer assembly 4 drives the second clamping assembly 3 away from the first clamping assembly 2, it drives the head end of the carrier tape and the head end of the cover tape away from each other. When the head end of the carrier tape and the head end of the cover tape move away from each other until the carrier tape and the cover tape in the connecting section are separated, the peeling force of the braid to be tested can be obtained by the tensile gauge 5. During the test, the transfer assembly 4 can control the first clamping assembly 2 and the second clamping assembly 3 to move away from each other at a relatively stable and uniform speed, so that the carrier tape and the cover tape move away from each other at a relatively stable and uniform speed, and a more accurate peeling force can be obtained. At the same time, manual intervention in the braid peeling force test is reduced, reducing costs and improving test efficiency.

[0058] Specifically, the head end of the above-mentioned carrier tape and the head end of the cover tape refer to the end of the separation segment adjacent to the connection segment to be tested away from the connection segment, that is, the clamping end of the separation segment to be clamped by the second clamping component 3 and the first clamping component 2.

[0059] In this embodiment, the preset direction is a vertical direction. Specifically, the base has a mounting surface extending in a vertical direction. The first clamping assembly 2 is mounted on the mounting surface, and the second clamping assembly 3 is located above the first clamping assembly 2. The first clamping assembly 2 and the second clamping assembly 3 are arranged vertically relative to each other. Correspondingly, the transfer assembly 4 is used to drive the second clamping assembly 3 and the first clamping assembly 2 toward or away from each other in the vertical direction, thereby pulling and peeling the carrier tape and the cover tape in the vertical direction. Compared to existing tape peel force testing devices that pull the carrier tape and cover tape apart horizontally, the present invention reduces the footprint of the tape peel force testing device 100 by arranging the second clamping assembly 3 and the first clamping assembly 2 in a vertical direction and moving relative to each other in the vertical direction, thereby facilitating the integration of the tape peel force testing device 100 with electronic component packaging equipment. Of course, this is not limiting. In other embodiments, the preset direction can also be set to a horizontal direction or an inclined direction with a certain angle relative to the horizontal direction.

[0060] The specific structure of the braid peel force testing device 100 of the present invention will be described below, with the preset direction being the vertical direction. It is understood that this is not a limitation, and the positions and orientations of the various structures in the braid peel force testing device 100 described below can be adaptively modified according to the preset direction, all within the scope of protection of the present invention.

[0061] In a specific embodiment, the transplanting assembly 4 is used to drive the first clamping assembly 2 to move along a preset direction, and the second clamping assembly 3 is connected to the dynamometer 5. Of course, this is not limited to this.

[0062] Specifically, as shown in FIG4 , the transplanting assembly 4 includes a transplanting motor 41 fixed to the mounting surface, a driving wheel (not shown) connected to the output end of the transplanting motor 41, a driven wheel 42 rotatably connected to the mounting surface and located on a side of the first clamping assembly 2 away from the driving wheel, a belt 43 wound around the driving wheel and the driven wheel 42, and a fixing base 44 fixed to the belt 43. The first clamping assembly 2 is connected to the fixing base 44. When the preset direction is vertical, the driving wheel and the driven wheel 42 are arranged at intervals in the vertical direction, and the belt 43 extends in the vertical direction. When the transplanting motor 41 is started and drives the belt 43, the first clamping assembly 2 is driven to move in the vertical direction to approach or move away from the second clamping assembly 3.

[0063] Furthermore, the transplanting assembly 4 further includes a guiding structure provided between the fixing seat 44 and the mounting surface to guide the movement direction of the fixing seat 44 relative to the mounting surface, thereby improving the stability of the braid peeling force testing device 100 .

[0064] In a specific embodiment, the guide structure is a slide rail 45 provided on the mounting surface, and the slide rail 45 extends between the driving wheel and the driven wheel 42 . The fixing seat 44 is slidably connected to the slide rail 45 .

[0065] The braid peeling force testing device 100 further includes a fixing plate 51 fixed to the mounting surface. The fixing plate 51 is perpendicular to the mounting surface, and the dynamometer 5 is fixed to the fixing plate 51 .

[0066] In a specific embodiment, as shown in FIG5 , the second clamping assembly 3 includes a fixing frame 31 fixed to the outer wall of the dynamometer 5, a clamping cylinder 32 slidably connected to the fixing frame 31 along a preset direction, and a clamping claw 33 connected to the output end of the clamping claw cylinder 32. The clamping claw cylinder 32 is connected to the test end of the dynamometer 5. The clamping claw cylinder 32 is in communication with the control unit and controls the opening or closing of the clamping claw 33 through the clamping claw cylinder 32. When the clamping claw 33 is opened, the head end of the cover tape can enter between the clamping claws 33 or the head end of the cover tape can be released. When the clamping claw 33 is closed, the clamping claw 33 can clamp the head end of the cover tape to facilitate subsequent testing. Of course, this is not limited to this.

[0067] In a specific embodiment, as shown in Figures 2 and 4, the first clamping assembly 2 includes a pressure seat 21 connected to the fixed seat, a downward pressure cylinder 22 connected to the pressure seat 21, and a pressure plate 23 connected to the output end of the downward pressure cylinder 22. The downward pressure cylinder 22 is in communication with the control unit. The downward pressure cylinder 22 drives the pressure plate 23 to move closer to or away from the pressure seat 21. When there is a gap between the pressure plate 23 and the pressure seat 21, the head end of the braid / carrier tape can enter between the pressure plate 23 and the pressure seat 21, making it easier for the downward pressure cylinder 22 to drive the pressure plate 23 downward. The pressure plate 23 cooperates with the pressure seat 21 to clamp the head end of the braid / carrier tape.

[0068] Furthermore, in conjunction with Figures 1 to 3 , the braid peeling force testing device 100 further includes a conveying assembly 6 disposed on the base 1 and arranged opposite to the first clamping assembly 2 along a preset direction. The conveying assembly 6 includes a conveying channel for conveying the braid to be tested and a pressure wheel assembly 64 for driving the braid to be tested to move within the conveying channel. The conveying channel includes a discharge port open to the first clamping assembly 2, and the pressure wheel assembly 64 conveys the braid to be tested, which is output from the discharge port and moves between the pressure seat 21 and the pressure plate 23. Thus, the braid peeling force testing device 100 of the present invention can automatically convey the braid to be tested, thereby improving the automation of the braid peeling force testing device 100, reducing manual intervention, improving efficiency, and reducing costs.

[0069] In an embodiment where the preset direction is vertical, the conveying assembly 6 is located above the first clamping assembly 2, and the discharge port is downwardly open toward the first clamping assembly 2. Specifically, the conveying channel includes a vertical channel 61 extending upward from the discharge port, a horizontal channel 62 extending horizontally, and a deflection channel 63 connecting an end of the vertical channel 61 away from the discharge port with the horizontal channel 62. A drive slot 621 is provided on a side of the horizontal channel 62 away from the base 1. The pressure wheel assembly 64 drives the braid to be tested within the conveying channel from within the drive slot 621.

[0070] Specifically, the pressure roller assembly 64 includes a cylinder fixed to the base 1, a pressure roller motor connected to the output end of the cylinder, and a pressure roller connected to the output end of the pressure roller motor. The pressure roller motor is used to drive the pressure roller to rotate. The cylinder and the pressure roller motor are both communicatively connected to the control unit. The cylinder is used to drive the pressure roller to approach or move away from the drive groove 621 along the depth direction of the drive groove 621. During loading, the cylinder drives the pressure roller to move away from the drive groove 621 along the depth direction of the drive groove 621 to facilitate loading. When the braid to be tested is located at the drive groove 621, the cylinder drives the pressure roller to approach the drive groove 621 along the depth direction of the drive groove 621, so that the pressure roller presses the braid to be tested, so that the subsequent rotation of the pressure roller drives the braid to be tested to move within the conveying channel. That is, after the cylinder drives the pressure roller to press the braid to be tested, the pressure roller motor is controlled to start to convey the braid to be tested.

[0071] Furthermore, the braid peeling force testing device 100 also includes a first sensor 622 for sensing whether the braid to be tested in the horizontal channel 62 has moved to the drive slot 621. The first sensor 622 is communicatively connected to the control unit. Thus, after the first sensor 622 senses that the braid to be tested has moved to the drive slot 621 and provides feedback to the control unit, the control unit controls the cylinder to first drive the pressure wheel away from the drive slot 621 in the depth direction of the drive slot 621, then controls the cylinder to drive the pressure wheel toward the drive slot 621 in the depth direction of the drive slot 621 to press the braid to be tested, and finally controls the pressure wheel motor to start to transport the braid to be tested. This improves the automation of the braid peeling force testing device 100.

[0072] Furthermore, the horizontal channel 62 includes an inlet disposed opposite the outlet. The inlet is provided with a guide plate 623. The guide plate 623 extends obliquely away from the inlet, away from the centerline of the horizontal channel 62. This guide plate guides the braid to be tested into the horizontal channel 62, thereby improving the overall stability of the braid peel force testing device 100.

[0073] Furthermore, the braid peel force testing device 100 further includes a second sensor 24 for sensing whether the braid to be tested has reached the pressure seat 21. The second sensor 24 is in communication with the control unit. After the second sensor 24 senses that the leading end of the braid to be tested has moved onto the pressure seat 21 and provides feedback to the control unit, the control unit controls the downward pressure cylinder 22 to clamp the leading end of the braid.

[0074] Specifically, the second sensor 24 is installed on the installation surface and is located on the side of the pressure seat 21 facing the discharge port. Of course, this is not limited to this.

[0075] It is understood that to facilitate the conveyance of the test tape through the conveyor assembly 6, the opposite ends of the test tape are generally connected, that is, the leading and trailing ends of the test tape are sealed. In one embodiment, the test tape comprises, from the leading end toward the trailing end, a leading end sealed section, a separating section, a connecting section, a separating section, and a trailing end sealed section. Therefore, before testing the peel force between the carrier tape and the cover tape, the leading end sealed section must be removed.

[0076] Furthermore, the braid peel strength testing device 100 also includes a cutting assembly 7 located at the discharge port for cutting the braid to be tested. The cutting assembly 7 is in communication with the control unit. After the conveying assembly 6 conveys the braid to be tested until the head end of the braid to be tested is positioned on the pressure seat 21 and the downward pressure cylinder 22 presses down and clamps the head end of the braid to be tested, the pressure wheel stops rotating to stop conveying the braid to be tested, and the cutting assembly 7 starts to cut the braid to be tested, removing the sealed section at the head end of the braid to be tested, thereby facilitating subsequent testing of the peel strength between the carrier tape and the cover tape. This eliminates the need for manual intervention in cutting the braid to be tested, improving the automation of the braid peel strength testing device 100.

[0077] Specifically, as shown in FIG4 , the cutting assembly 7 includes two blades 71 located on opposite sides of the discharge port, and a cutting drive 72 for driving the two blades 71 to move relative to each other. The cutting drive 72 is in communication with the control unit. The cutting drive 72 drives the two blades 71 to move relative to each other. When the two blades 71 approach each other, the braid to be tested is cut. When the two blades 71 move away from each other, the discharge port is opened to allow the braid to be tested to continue to be fed.

[0078] Furthermore, the braid peeling force testing device 100 includes a storage box 8 located below the discharge port. After the cutting assembly 7 cuts off the head end of the braid to be tested and the downward pressure cylinder 22 is raised, the severed head end sealing section automatically falls into the storage box 8, enabling automatic recycling of the cut waste.

[0079] In the embodiment where the preset direction is vertical, the storage box 8 is disposed on the pressure seat 21 and below the downward pressure cylinder 22, with the opening of the storage box 8 facing the downward pressure cylinder 22. Thus, after the cutting assembly 7 cuts off the head end of the braid to be tested and the downward pressure cylinder 22 is controlled to rise, the cut head end sealing section automatically falls into the storage box 8, enabling automatic recycling of the cut waste.

[0080] Furthermore, in conjunction with Figures 2, 3, 5, and 6, the second clamping assembly 3 is located on the side of the conveying assembly 6 away from the mounting surface. A window 611 is provided on the side of the conveying channel away from the base 1. The braid peeling force testing device 100 also includes a cover tape extraction assembly 9 located between the window 611 and the second clamping assembly 3. The cover tape extraction assembly 9 is used to extract the cover tape from the window 611. Thus, after the braid to be tested is cut, the cover tape extraction assembly 9 extracts the cover tape through the window 611 and moves it to the clamping jaws 33 in the second clamping assembly 3. The clamping jaws 33 of the second clamping assembly 3 clamp the head end of the cover tape, thereby facilitating the extraction of the cover tape.

[0081] Specifically, in an embodiment where the preset direction is a vertical direction and the conveying channel includes the above-mentioned vertical channel 61, the second clamping assembly 3 is located on the side of the vertical channel 61 away from the mounting surface, and the window 611 is located on the side of the vertical channel 61 away from the mounting surface.

[0082] Furthermore, the cover tape extraction assembly 9 includes a suction cup 91 for sucking the cover tape and a drive module for driving the suction cup 91 to move. The drive module includes a flip drive 92 for driving the suction cup 91 to flip so as to switch between the window 611 and the second clamping assembly 3, and a linear drive 93 for driving the suction cup 91 toward or away from the window 611 in a direction perpendicular to the plane of the window 611. The flip drive 92 and the linear drive 93 are both communicatively connected to the control unit.

[0083] After the tape to be tested is cut, the flip drive 92 is controlled to flip so that the suction cup 91 is facing the window 611, and then the linear drive 93 is controlled to drive the suction cup 91 close to the window 611 until the suction cup 91 absorbs the cover tape. After the suction cup 91 absorbs the cover tape, the linear drive 93 is controlled to drive the suction cup 91 to drive the head end of the cover tape away from the window 611, and then the flip drive 92 is controlled to flip 180° first in the direction of the first clamping component 2 and then in the direction away from the base 1, driving the head end of the cover tape to move to the clamping claw 33 of the second clamping component 3, and the clamping claw cylinder 32 controls the clamping claw 33 to close and clamp the head end of the cover tape.

[0084] As shown in FIG6 , in one embodiment, the cover tape extraction assembly 9 further includes a mounting plate 94 mounted on the output end of the linear drive member 93, the flip drive member 92 is mounted on the mounting plate 94, and the suction cup 91 is provided at the flip output end of the flip drive member 92. Of course, the present invention is not limited to this.

[0085] Furthermore, the cover tape extraction component 9 includes two suction cups 91, which are arranged on opposite radial sides of the flip output end, thereby reducing the flipping of the cover tape extraction component 9 and improving the efficiency of the braid peeling force testing device 100.

[0086] Specifically, the linear driving member 93 is a linear driving cylinder, and the flip driving member 92 is a flip driving cylinder.

[0087] Furthermore, the cover tape extraction assembly 9 also includes a limit sensor 95 located on the side of the mounting plate 94 away from the mounting surface. The limit sensor 95 is communicatively connected to the control unit to limit the linear driving member 93 to drive the suction cup 91 to move linearly through the limit sensor 95, so as to avoid interference between the cover tape extraction assembly 9 and other components.

[0088] Furthermore, in combination with Figures 1, 2, and 4, the braid peeling force testing device 100 further includes a height adjustment component 20 for adjusting the distance between the first clamping component 2 and the mounting surface. Thus, in the process of conveying the tape to be tested, the first clamping component 2 is made to face the discharge port, that is, the pressure seat 21 is located directly below the discharge port, so that the head end of the tape to be tested or the head end of the carrier tape can be moved onto the pressure seat 21, so that the head end of the tape to be tested or the head end of the carrier tape can be clamped by controlling the downward pressure cylinder 22 to press down; after the first clamping component 2 clamps the head end of the carrier tape and the second clamping component 3 clamps the head end of the cover tape, the distance between the first clamping component 2 and the mounting surface is adjusted so that the first clamping component 2 is made to face the second clamping component 3, that is, the pressure seat 21 is located directly below the clamping claw 33, so that during the test, the carrier tape and the cover tape are in the same vertical plane, which can ensure the stability of the force on the carrier tape and the cover tape.

[0089] Specifically, the height-adjusting component 20 is fixed on the fixing seat, and the first clamping component 2 is fixed to the output end of the height-adjusting component 20 , that is, the pressing seat 21 is fixed to the output end of the height-adjusting component 20 .

[0090] In a specific embodiment, the height adjustment component 20 can be configured as a lifting cylinder. Of course, the present invention is not limited thereto.

[0091] 3 , the conveying channel has sidewalls 612 located on opposite sides of the window 611, each of which is provided with a through-hole 6121. The braid peeling force testing device 100 further includes a pin assembly 30, which includes a pin facing the through-hole 6121 and a pin driver connected to the pin. The pin driver is in communication with the control unit. When it is necessary to test the unilateral peeling force of the tape to be tested, the conveying component 6 conveys the tape to be tested to the head end of the tape to be tested and clamps it on the first clamping component 2. The cutting component 7 does not cut the tape to be tested, and the cover tape extraction component 9 extracts the cover tape to separate the cover tape and the carrier tape of the separation section. Then, the pin driving component drives the pin through the perforation 6121 to insert into the vertical channel 61. At this time, the pin is located between the carrier tape and the cover tape on the side to be separated. The transplanting component 4 is then driven to drive the first clamping component 2 to move away from the discharge port, thereby driving the tape to be tested to move. Under the action of the pin, the carrier tape and the cover tape on the side to be separated are separated. After the carrier tape and the cover tape on the side to be separated are separated, the transplanting assembly 4 is driven to drive the first clamping assembly 2 toward the discharge port to reset the first clamping assembly 2, and the pressure wheel is driven to rotate in the opposite direction to pull the tape to be tested back into the conveying channel, and then subsequent process steps such as cutting, extracting the cover tape, and testing are carried out.

[0092] Specifically, both side walls 612 are penetrated by through-holes 6121, and the braid peeling force testing device 100 includes pin assemblies 30 corresponding to the through-holes 6121. Thus, the side to be separated can be selected according to needs, thereby improving the versatility of the braid peeling force testing device 100.

[0093] Furthermore, the braid peeling force testing device 100 further includes a shielding cover 40 for shielding the transplanting assembly 4 , so as to improve the safety performance of the braid peeling force testing device 100 and the overall appearance of the braid peeling force testing device 100 .

[0094] Specifically, the shielding cover 40 is installed on the installation surface, and the shielding cover 40 shields the belt 43 and the driven pulley 42 .

[0095] Furthermore, the present invention also provides a method for testing the peeling force of a braided tape based on the braid peeling force testing device 100. The braid peeling force testing device 100 is as described above and will not be described in detail herein.

[0096] The braid peeling force testing method comprises the following steps:

[0097] Clamping: Fix the head end of the carrier tape of the tape to be tested to the first clamping component 2, and fix the head end of the cover tape to the second clamping component 3 arranged opposite to the first clamping component 2 along a preset direction;

[0098] Test: driving the second clamping assembly 3 and the first clamping assembly 2 to move away from each other along the preset direction, thereby driving the leading end of the carrier tape and the leading end of the cover tape to move away from each other along the preset direction;

[0099] Get the peel force.

[0100] Specifically, the clamping step includes the following steps:

[0101] During the process of forward conveying the braided tape to the first clamping assembly 2, the conveying assembly 6 sucks the cover tape through the suction cup 91 and flips the head end of the cover tape to the second clamping assembly 3, and controls the second clamping assembly 3 to clamp the head end of the cover tape;

[0102] When the conveying assembly 6 conveys the braid to be tested to the head end of the carrier tape and reaches the first clamping assembly 2 , the first clamping assembly 2 is controlled to clamp the head end of the carrier tape.

[0103] Specifically, in the process of conveying the tape to be tested to the first clamping assembly 2, the pressure seat 21 in the first clamping assembly 2 is opposite to the discharge port of the conveying assembly 6, so that the head end of the carrier tape can enter between the pressure seat 21 and the corresponding downward pressure cylinder 22, thereby facilitating the subsequent clamping of the head end of the carrier tape by pressing down the downward pressure cylinder 22.

[0104] Furthermore, after the first clamping assembly 2 clamps the head end of the carrier tape and before testing, the tape peeling force testing method further includes the following steps:

[0105] The height of the first clamping assembly 2 from the mounting surface is adjusted so that the pressure seat 21 of the first clamping assembly 2 faces the second clamping assembly 3. Thus, the carrier tape and the cover tape are located in the same plane, ensuring the stability of the force applied to the carrier tape and the cover tape.

[0106] Furthermore, before the clamping step, the braid peeling force testing method further includes the following cutting step:

[0107] The conveying assembly 6 conveys the braid in the forward direction to the point where the head end of the braid to be tested reaches the first clamping assembly 2, controls the first clamping assembly 2 to clamp the head end of the braid to be tested, and controls the conveying assembly 6 to stop.

[0108] The cutting assembly 7 located at the discharge port is controlled to cut the braid to be tested and remove the head end of the braid to be tested.

[0109] After the cutting component 7 cuts off the head end of the tape to be tested and removes the head end of the tape to be tested, the first clamping component 2 is controlled to loosen the cut head end of the tape to be tested. Under the action of its own gravity, the head end of the tape to be tested falls into the storage box 8, realizing automatic collection of waste.

[0110] Furthermore, when it is necessary to test the unilateral peeling force of the braid to be tested, after the braid to be tested is conveyed to the first clamping assembly 2 to clamp the head end of the braid to be tested, and before the cutting assembly 7 located at the discharge port is controlled to cut the braid to be tested and remove the head end of the braid to be tested, the braid peeling force testing method further includes the following steps:

[0111] The cover tape is sucked by the suction cup 91 so that there is a gap between the cover tape and the carrier tape;

[0112] After the suction cup 91 absorbs the cover tape, the pins in the drive pin assembly 30 are inserted into the gap between the cover tape and the carrier tape on the side to be separated;

[0113] Drive the first clamping assembly 2 to pull the braid to be tested along a preset direction away from the conveying assembly 6 until the cover tape and the carrier tape on the side to be separated are separated;

[0114] The first clamping assembly 2 is driven to move in a preset direction toward the conveying assembly 6 while the conveying assembly 6 conveys the braid in the reverse direction until the first clamping assembly 2 is reset.

[0115] After the cover tape and carrier tape on the side to be separated are separated, the pins in the pin assembly 30 are controlled to retract. It can be seen that after the cover tape and carrier tape on the side to be separated are separated, the first clamping assembly 2 is reset, and the tape to be tested is pulled back into the conveying channel, the above-mentioned cutting, clamping, and testing steps can be initiated to obtain the single-sided peel force of the tape to be tested.

[0116] Furthermore, after the peeling force test is completed, the second clamping assembly 3 is controlled to release the head end of the cover tape, and the first clamping assembly 2 is controlled to release the head end of the carrier tape, and then the material is discharged, and the test is completed.

[0117] Specifically, the process of using the tape peeling force testing device 100 in the present invention to test the double-sided peeling force testing method of the tape to be tested is as follows: the upper workstation provides the tape to be tested to enter the horizontal channel 62 through the feed port, the first sensor 622 obtains the tape to be tested arriving at the driving slot 621 and feeds back to the control unit, controls the cylinder in the pressure wheel assembly 64 to drive the pressure wheel to lift away from the driving slot 621 and then retract it into the driving slot 621 to press the tape to be tested, controls the pressure wheel motor in the pressure wheel assembly 64 to drive the pressure wheel to rotate forward to convey the tape to be tested; after the second sensor 24 senses that the head end of the tape to be tested moves to the pressure seat 21, controls the pressing cylinder 22 to press down to clamp the head end of the tape to be tested, and at the same time controls the pressure wheel motor in the pressure wheel assembly 64 to stop and stop conveying the tape to be tested, controls the cutting assembly 7 at the discharge port to cut the tape to be tested to remove the sealed head end of the tape to be tested, and the head end of the tape to be tested falls into the receiving Waste is automatically collected in the box 8; after cutting is successful, the pressure wheel motor in the pressure wheel assembly 64 is controlled to continue to convey the tape to be tested in the forward direction, and at the same time, the suction cup 91 in the cover tape extraction assembly 9 moves straight toward the window 611 and absorbs the cover tape. After successful absorption, it moves away from the window 611 and flips over, and the second clamping assembly 3 clamps the head end of the cover tape, and at the same time, the carrier tape continues to be conveyed toward the first clamping assembly 2. After the second sensor 24 senses that the carrier tape is located on the pressure seat 21, the downward pressure cylinder 22 is controlled to press down and clamp the head end of the carrier tape; after the first clamping assembly 2 clamps the head end of the carrier tape and the second clamping assembly 3 clamps the head end of the cover tape, the height adjustment assembly 20 is controlled to adjust the first clamping assembly 2 until the pressure seat 21 in the first clamping assembly 2 and the clamping claw 33 in the second clamping assembly 3 are in the same vertical plane, and then the transplanting assembly 4 starts to pull the first clamping assembly 2 to move downward away from the second clamping assembly 3 to obtain the bilateral peeling force of the tape to be tested.

[0118] Specifically, the process of the unilateral peeling force test method of the tape to be tested using the tape peeling force test device 100 of the present invention is as follows: the upper workstation provides the tape to be tested to enter the horizontal channel 62 through the feed port, the first sensor 622 obtains the arrival of the tape to be tested at the drive slot 621 and feeds back to the control unit, controls the cylinder in the pressure wheel assembly 64 to drive the pressure wheel to lift away from the drive slot 621 and then retract it into the drive slot 621 to press the tape to be tested, controls the pressure wheel motor in the pressure wheel assembly 64 to drive the pressure wheel to rotate forward to convey the tape to be tested; after the second sensor 24 senses that the head end of the tape to be tested moves to the pressure seat 21, controls the downward pressure cylinder 22 to press down To clamp the head end of the tape to be tested, at the same time, control the pressure wheel motor in the pressure wheel assembly 64 to stop and stop conveying the tape to be tested. At this time, the cutting assembly 7 is not started, and the suction cup 91 in the cover tape extraction assembly 9 is controlled to approach the window 611 and suck the cover tape to separate the cover tape of the separation section from the carrier tape, and the pins in the pin assembly 30 corresponding to the side to be separated are controlled to be inserted into the vertical channel 61 and stuck between the carrier tape and the cover tape on the separation side, and the transplanting assembly 4 is controlled to start and drive the first clamping assembly 2 to move downward away from the discharge port, pulling the tape to be tested to move downward so that the pins separate the carrier tape and the cover tape on the side to be separated; after the carrier tape and the cover tape on the side to be separated are separated, the pins retract, and the control The transplanting component 4 starts to drive the first clamping component 2 to move and reset in the direction close to the discharge port, and controls the pressure wheel motor in the pressure wheel assembly 64 to drive the pressure wheel to rotate in the opposite direction to retract the tape to be tested into the conveying channel; after the first clamping component 2 is reset and the tape to be tested is retracted into the conveying channel, the cutting component 7 at the discharge port is controlled to cut the tape to be tested to remove the sealed head end of the tape to be tested, and the head end of the tape to be tested falls into the storage box 8 to automatically collect waste; after cutting is successful, the pressure wheel motor in the pressure wheel assembly 64 is controlled to continue to convey the tape to be tested in the forward direction, and at the same time, the suction cup 91 in the cover tape extraction component 9 moves straight toward the window 611 and absorbs the cover tape. Leave the window 611 and flip over, the second clamping component 3 clamps the head end of the cover tape, and at the same time the carrier tape continues to be transported toward the first clamping component 2, and after the second sensor 24 senses that the carrier tape is located on the pressure seat 21, the downward pressure cylinder 22 is controlled to press down and clamp the head end of the carrier tape; after the first clamping component 2 clamps the head end of the carrier tape and the second clamping component 3 clamps the head end of the cover tape, the height adjustment component 20 is controlled to adjust the first clamping component 2 to the same vertical plane so that the pressure seat 21 in the first clamping component 2 and the clamping claw 33 in the second clamping component 3 are located in the same vertical plane, and then the transplanting component 4 starts to pull the first clamping component 2 downward away from the second clamping component 3 to obtain the unilateral peeling force of the tape to be tested.

[0119] Compared with the prior art, in the braid peeling force testing device 100 of the present invention, by setting the first clamping component 2 and the second clamping component 3 so that one is connected to the transplanting component 4 and the other is connected to the test end of the tensile gauge 5, the transplanting component 4 can control the first clamping component 2 and the second clamping component 3 to move away from each other at a relatively stable and uniform speed, so that the carrier tape and the cover tape can move away from each other / peel off at a relatively stable and uniform speed, and a more accurate peeling force can be obtained, thereby reducing manual intervention in the braid peeling force test process, reducing costs, and improving test efficiency.

[0120] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0121] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A braid peeling force testing device, characterized in that: include: seat body; A first clamping assembly, which is mounted on the base and is used to clamp the head end of the braid to be tested; A second clamping assembly, the second clamping assembly is mounted on the base and arranged opposite to the first clamping assembly along a preset direction, the second clamping assembly is used to clamp the head end of the cover tape in the braided tape to be tested; A transplanting assembly, the transplanting assembly is used to drive the first clamping assembly and the second clamping assembly to move closer to or farther away from each other along the preset direction; A tensile gauge, wherein one of the first clamping assembly and the second clamping assembly is connected to the transplanting assembly, and the other is connected to the test end of the tensile gauge.

2. The braid peeling force testing device according to claim 1, characterized in that: The braid peeling force testing device also includes: A conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly comprising a conveying channel for conveying the braided tape to be tested, the conveying channel comprising a discharge port open toward the first clamping assembly, a window penetrating through a side of the conveying channel away from the seat body, and the second clamping assembly being located on the side where the window is located; A cover tape extraction component is disposed between the window and the second clamping component, and the cover tape extraction component is used to extract the cover tape from the window.

3. The braid peeling force testing device according to claim 2, characterized in that: The cover tape extraction assembly comprises: Suction cup; A driving module, the driving module includes a linear driving member for driving the suction cup to approach or move away from the window in a direction perpendicular to the plane where the window is located, and a flip driving member connected to the output end of the linear driving member and used to drive the suction cup to flip so as to switch between the window and the second clamping assembly, and the suction cup is arranged at the flip output end of the flip driving member.

4. The braid peeling force testing device according to claim 3, characterized in that: The cover tape extraction component includes two suction cups, and the flip driving member includes a flip output end. Along the radial direction of the flip output end, the two suction cups are arranged on opposite sides of the flip output end.

5. The braid peeling force testing device according to claim 1, characterized in that: The braid peeling force testing device further comprises: a conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly comprising a conveying channel for conveying the braid to be tested, the conveying channel comprising a discharge port open toward the first clamping assembly, and the second clamping assembly is located on a side of the conveying channel away from the seat body; A height-adjusting assembly is disposed between the first clamping assembly and the seat body, and the height-adjusting assembly is used to adjust the distance between the first clamping assembly and the seat body.

6. The braid peeling force testing device according to claim 5, characterized in that: The first clamping assembly is connected to the transplanting assembly; the transplanting assembly includes a transplanting motor fixed to one end of the base body away from the second clamping assembly, a driving wheel connected to the output end of the transplanting motor, a driven wheel rotatably connected to the base body and located on the side of the first clamping assembly facing the second clamping assembly, a belt wound around the driving wheel and the driven wheel, and a fixing seat fixed on the belt, the height adjusting assembly is fixed to the fixing seat, and the first clamping assembly is fixed to the output end of the height adjusting assembly.

7. The braid peeling force testing device according to claim 1, characterized in that: The braid peeling force testing device also includes: A conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly comprising a conveying channel for conveying the braided tape to be tested, the conveying channel comprising a discharge port open toward the first clamping assembly; A cutting component is arranged at the discharge port to cut the braided tape to be tested.

8. The braid peeling force testing device according to claim 2, characterized in that: The first clamping assembly is connected to the transplanting assembly; the conveying channel has side walls located on opposite sides of the window, and the side walls are penetrated by perforations; the braid peeling force testing device also includes: The pin assembly includes a pin facing the through hole and a pin driving member connected to the pin. When it is necessary to test the single-sided peeling force of the braid to be tested, the pin driving member drives the pin to be inserted into the conveying channel through the through hole.

9. The braid peeling force testing device according to claim 1, characterized in that: The braid peeling force testing device also includes a conveying assembly arranged opposite to the first clamping assembly along a preset direction, the conveying assembly includes a conveying channel for conveying the braid to be tested, the conveying channel includes a discharge port open toward the first clamping assembly, and a driving groove is penetrated through the side of the conveying channel away from the base body; the conveying assembly also includes a pressure wheel assembly for driving the braid to be tested to move in the conveying channel from the driving groove.

10. The braid peeling force testing device according to claim 1, characterized in that: The first clamping assembly includes a pressure seat connected to the seat body, a downward pressure cylinder connected to the pressure seat, and a pressure plate connected to the output end of the downward pressure cylinder; the braid peeling force testing device also includes a second sensor for sensing whether the braid to be tested reaches the pressure seat.

11. The braid peeling force testing device according to claim 1, characterized in that: The braid peeling force testing device also includes a conveying assembly arranged opposite to the first clamping assembly along a preset direction, and the conveying assembly includes a conveying channel for conveying the braid to be tested and a pressure wheel assembly for driving the braid to be tested to move in the conveying channel.

12. A method for testing the braid peeling force based on the braid peeling force testing device according to claim 1, characterized in that: The steps include: Clamping: fix the head end of the carrier tape of the braided tape to be tested to the first clamping assembly, and fix the head end of the cover tape to the second clamping assembly arranged opposite to the first clamping assembly along a preset direction; Test: driving the second clamping assembly and the first clamping assembly to move away from each other along a preset direction, so as to drive the head end of the carrier tape and the head end of the cover tape to move away from each other along the preset direction; Get the peel force.

13. The method for testing the stripping force of a braid according to claim 12, wherein: Steps: The clamping process includes the following steps: During the process of the conveying assembly forwardly conveying the braided tape to be tested to the first clamping assembly, the linear driving member in the cover tape extraction assembly drives the suction cup to approach and suck up the cover tape, and after the suction cup approaches and sucks up the cover tape, the flipping driving member in the cover tape extraction assembly drives the suction cup to flip so that the head end of the cover tape moves to the second clamping assembly, and controls the second clamping assembly to clamp the head end of the cover tape; When the conveying assembly conveys the braid to be tested to the head end of the carrier tape and reaches the first clamping assembly, the first clamping assembly is controlled to clamp the head end of the carrier tape.

14. The method for testing the stripping force of a braid according to claim 12, wherein: Before the clamping step, the braid peeling force testing method further includes the following cutting step: When the conveying assembly conveys the braid to be tested in a forward direction until the head end of the braid to be tested reaches the first clamping assembly, the first clamping assembly is controlled to clamp the head end of the braid to be tested, and the conveying assembly is controlled to stop; The cutting assembly located at the material outlet of the conveying assembly is controlled to cut the braid to be tested and remove the head end of the braid to be tested.

15. The method for testing the stripping force of a braid according to claim 14, wherein: When it is necessary to test the unilateral peeling force of the braid to be tested, after the first clamping assembly clamps the head end of the braid to be tested, and before the cutting assembly at the discharge port is controlled to cut the braid to be tested and remove the head end of the braid to be tested, the braid peeling force testing method further includes the following steps: The cover tape is sucked by a suction cup in the cover tape extraction assembly so that there is a gap between the cover tape and the carrier tape; After the suction cup absorbs the cover tape, the pins in the drive pin assembly are inserted into the gap between the cover tape and the carrier tape on the side to be separated; The first clamping assembly is driven to move in a direction away from the conveying assembly, and the head end of the braided tape to be tested is pulled to move in a direction away from the conveying assembly synchronously until the cover tape and the carrier tape on the side to be separated are separated; The first clamping assembly is driven to move toward the direction close to the conveying assembly while the conveying assembly conveys the braid to be tested in the reverse direction until the first clamping assembly is reset.

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