A copper foil tensile strength detection device

Abstract

The utility model relates to copper foil detection field discloses a copper foil tensile strength detection device, including bottom plate, first clamping unit, second clamping unit, drive unit, the bottom plate is equipped with support plate, support plate first clamping unit and second clamping unit are connected in sequence on the bottom plate, drive unit includes first drive module, control rod, ratchet, pawl, elastic part, first drive module is connected on the support plate, and the power output end of first drive module is connected with first clamping unit, the ratchet is connected on first drive module, the pawl rotation is connected on the support plate, one end of elastic part is connected with support plate, and the other end is connected with pawl, control rod sliding is connected on the support plate. This detection device can improve the convenience of detecting tensile strength and tensile endurance.

Description

Technical Field

[0001] This utility model relates to the field of copper foil testing, and in particular to a copper foil tensile strength testing device. Background Technology

[0002] After copper foil is produced, it needs to be tested for tensile strength and tensile endurance to meet the requirements for its use. Existing copper foil tensile strength testing devices use a limiting mechanism to restrict the rotation of a handwheel, thus allowing the copper foil to maintain a certain tensile distance for testing its tensile endurance. However, the existing limiting mechanism requires continuous operation by the operator to release the handwheel, making the operation rather cumbersome.

[0003] CN202420891048 discloses a tensile strength testing device for copper foil production, comprising: a base plate, a rotating rod rotatably connected to the outer surface of the base plate via a bearing, a small disc fixedly sleeved on the outer surface of the rotating rod, a plurality of locking holes on the outer surface of the small disc, an L-shaped plate fixedly connected to the outer surface of the base plate near the small disc, a short strip II fixedly connected to the outer surface of the L-shaped plate, a limiting plate movably connected to the outer surface of the short strip II, a spring fixedly connected to the outer surface of the limiting plate, a pull rod fixedly connected to the outer surface of the limiting plate, the pull rod movably embedded inside the L-shaped plate, and a locking rod fixedly connected to the outer surface of the limiting plate, the locking rod movably embedded inside one of the locking holes. The detection device uses a pull rod inserted into a locking hole to restrict the rotation of the rotating rod, thereby restricting the rotation of the threaded rod. This allows the copper foil to be stretched and fixed within a certain value on the scale. However, this method requires continuously pulling the pull rod to disengage it from the locking hole when rotating the small disc, so that one end of the copper foil can be stretched. After moving to the appropriate distance, the pull rod is released to restrict the rotation of the small disc, making the operation rather cumbersome.

[0004] The technical problem that this utility model needs to solve is: how to improve the convenience of testing tensile strength and tensile endurance. Utility Model Content

[0005] The main objective of this invention is to provide a copper foil tensile strength testing device. A ratchet is installed on the first drive module, which rotates together with the first drive module. Through the cooperation of the ratchet, pawl, and elastic element, the first drive module can only drive the first clamping unit away from the second clamping unit. When testing tensile endurance, after the copper foil is stretched to the required distance, the pawl engages with the ratchet to restrict the drive module from rotating in the opposite direction, thereby keeping the copper foil at the stretching distance. During this process, the operator only needs to drive the first drive module normally to complete the test without any additional operation, thus improving convenience.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A copper foil tensile strength testing device includes a base plate, a first clamping unit, a second clamping unit, and a drive unit. The base plate has a support plate, and the support plate, the first clamping unit, and the second clamping unit are sequentially connected to the base plate. The drive unit includes a first drive module, a control lever, a ratchet, a pawl, and an elastic element. The first drive module is connected to the support plate, and its power output end is connected to the first clamping unit. The first drive module is used to drive the first clamping unit closer to or further away from the second clamping unit. The ratchet is connected to the first drive module. The pawl is rotatably connected to the support plate. One end of the elastic element is connected to the support plate, and the other end is connected to the pawl. The elastic element is used to keep the pawl engaged with the ratchet. The control lever is slidably connected to the support plate and is used to control the pawl to disengage from the ratchet.

[0008] Preferably, the first drive module includes a lead screw, a drive component, a first pulley, a second pulley, a belt, and a rotating shaft; one end of the lead screw along its length is rotatably connected to the support plate and passes through the support plate to be fixedly connected to the first pulley, and the other end is rotatably connected to the second clamping unit. The lead screw is connected to the first clamping unit and is used to drive the first clamping unit to move along the length of the lead screw; the rotating shaft is rotatably connected to the support plate, and along the direction from the second clamping unit to the first clamping unit, the rotating shaft is sequentially fixedly connected to the ratchet, the second pulley, and the drive component; the first pulley is connected to the second pulley via the belt.

[0009] Preferably, the diameter of the first pulley is smaller than the diameter of the second pulley.

[0010] Preferably, the support plate has a first direction, and the side of the support plate facing the first drive module is provided with two arc-shaped pieces. The length direction of the arc-shaped pieces extends along the first direction, and the two arc-shaped pieces form a sliding channel. Along the first direction, one of the arc-shaped pieces is provided with a first notch and a second notch. The control rod is slidably connected in the sliding channel, and the outer peripheral surface of the control rod is provided with a limiting block. The end of the pawl near the control rod is provided with a pressure plate.

[0011] When the limiting block is located within the first notch, the control lever disengages from the pressure plate, so that the pawl engages with the ratchet.

[0012] When the limiting block is located within the second notch, the end of the control lever abuts against the pressure plate, causing the pawl to rotate and disengage from the ratchet.

[0013] Preferably, the first clamping unit includes a movable plate, a fixed clamping block, a movable clamping block, and a second drive module; the lead screw is connected to the movable plate, and the lead screw is used to drive the movable plate to move along the length direction of the lead screw; along a first direction, the second drive module, the movable clamping block, and the fixed clamping block are arranged sequentially on the side of the movable plate facing the second clamping unit; the power output end of the second drive module is connected to the movable clamping block, and the drive module is used to drive the movable clamping block to move closer to or away from the fixed clamping block.

[0014] Preferably, the second drive module includes a screw and a handwheel. The side of the moving plate facing the second clamping unit is provided with a connecting plate. The screw is threadedly connected to the connecting plate. The length direction of the screw extends along the first direction. One end of the screw along its length direction is rotatably connected to the moving clamping block, and the other end is connected to the handwheel.

[0015] Preferably, the base is provided with a scale, the length direction of which extends along the arrangement direction of the first clamping unit and the second clamping unit, and the scale is located on one side of the moving plate; the side of the moving plate facing the scale is provided with a pointer; the pointer cooperates with the scale to measure the moving distance of the first clamping unit.

[0016] Preferably, both the movable clamping block and the fixed clamping block have an anti-slip layer on their surfaces.

[0017] Compared with existing technologies, this solution has the following advantages:

[0018] The testing device in this case has a ratchet on the first drive module, which rotates together with the first drive module. Through the cooperation of the ratchet, pawl, and elastic element, the first drive module can only rotate in one direction, thus enabling it to drive the first clamping unit away from the second clamping unit. During tensile endurance testing, after the copper foil is stretched to the required distance, the pawl engages with the ratchet to restrict the first drive module from rotating in the opposite direction. Moreover, since the copper foil exerts a pulling force on the first clamping unit after being stretched, the first drive module will not automatically rotate in the forward direction, thus keeping the copper foil at the stretched distance. During this process, the operator only needs to drive the first drive module normally to complete the task without any additional operation, improving convenience.

[0019] Secondly, when the first drive module needs to move the first clamping unit closer to the second clamping unit, it only needs to move the control lever downward to disengage the pawl from the ratchet, thereby releasing the unidirectional rotation restriction of the first drive module, enabling the first drive module to rotate in both directions, and thus enabling the first drive module to move the first clamping unit closer to the second clamping unit to meet the needs of multiple tests. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the copper foil tensile strength testing device in Example 1;

[0021] Figure 2 As in Example 1 Figure 1 Enlarged view of A in the middle;

[0022] Figure 3 This is a front view of the copper foil tensile strength testing device of Example 1.

[0023] The components include: base plate 1; first clamping unit 2; second clamping unit 3; drive unit 4; support plate 11; arc-shaped piece 12; scale 13; moving plate 21; fixed clamping block 22; moving clamping block 23; second drive module 24; first drive module 41; control lever 42; ratchet 43; pawl 44; elastic element 45; first notch 121; second notch 122; connecting plate 211; pointer 212; screw 241; handwheel 242; lead screw 411; drive element 412; first pulley 413; second pulley 414; belt 415; rotating shaft 416; limit block 421; and pressure plate 431. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application implemented as described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Example 1

[0026] refer to Figure 1-3A copper foil tensile strength testing device includes a base plate 1, a first clamping unit 2, a second clamping unit 3, and a drive unit 4. The base plate 1 is provided with a support plate 11, and the support plate 11, the first clamping unit 2, and the second clamping unit 3 are sequentially connected to the base plate 1. The drive unit 4 includes a first drive module 41, a control rod 42, a ratchet 43, a pawl 44, and an elastic element 45. The first drive module 41 is connected to the support plate 11, and the power output end of the first drive module 41 is connected to the first clamping unit 2. The first drive module 41 is used to drive the first clamping unit 2 to move closer to or away from the second clamping unit 3; the ratchet 43 is connected to the first drive module 41; the pawl 44 is rotatably connected to the support plate 11; one end of the elastic element 45 is connected to the support plate 11, and the other end is connected to the pawl 44, the elastic element 45 is used to keep the pawl 44 engaged with the ratchet 43; the control lever 42 is slidably connected to the support plate 11, the control lever 42 is used to control the pawl 44 to disengage from the ratchet 43.

[0027] In this embodiment, the support plate 11 is connected to one end of the base plate 1, the second clamping unit 3 is connected to the other end of the base plate 1, and the first clamping unit 2 is slidably connected to the base plate 1, and is located between the support plate 11 and the second clamping unit 3. With the cooperation of the ratchet 43, pawl 44, and elastic element 45, the first drive module 41 can rotate in one direction, thus allowing the first clamping unit 2 to move only away from the second clamping unit 3. The elastic element 45 is a spring.

[0028] During the tensile strength test, the second clamping unit 3 clamps one end of the copper foil, the first clamping unit 2 clamps the other end of the copper foil, and the first driving module 41 drives the first clamping unit 2 away from the second clamping unit 3, thereby stretching the copper foil until it is torn. The moving distance of the first clamping unit 2 at this time is recorded, and the tensile strength of the copper foil is calculated.

[0029] During the tensile endurance test, the second clamping unit 3 clamps one end of the copper foil, and the first clamping unit 2 clamps the other end of the copper foil. The first drive module 41 drives the first clamping unit 2 away from the second clamping unit 3, thereby stretching the copper foil to the required distance. When the first drive module 41 stops, with the cooperation of the ratchet 43, pawl 44, and elastic element 45, the first drive module 41 will not reverse. Therefore, the first clamping unit 2 will not move back due to the tension of the copper foil, thus enabling the first clamping unit 2 to keep the copper foil in the required position.

[0030] In this way, neither tensile strength testing nor tensile endurance testing can be performed without additional operations. When replacing one copper foil after testing another, simply move the control lever 42 to disengage the pawl 44 from the ratchet 43, allowing the first drive module 41 to rotate bidirectionally. This enables the first drive module 41 to move the first clamping unit 2 closer to the second clamping unit 3 for the next test.

[0031] Secondly, during the tensile strength test, the control lever 42 can be moved to disengage the pawl 44 from the ratchet 43, thereby allowing the first drive module 41 to rotate in both directions. Since it is not necessary to keep the first clamping unit 2 in a certain position during the tensile strength test, disengaging the pawl 44 from the ratchet 43 during the tensile strength test can increase the service life of the pawl 44 and the ratchet 43.

[0032] Preferably, the first drive module 41 includes a lead screw 411, a drive member 412, a first pulley 413, a second pulley 414, a belt 415, and a rotating shaft 416; one end of the lead screw 411 along its length direction is rotatably connected to the support plate 11 and passes through the support plate 11 to be fixedly connected to the first pulley 413, and the other end is rotatably connected to the second clamping unit 3. The lead screw 411 is connected to the first clamping unit 2 and is used to drive the first clamping unit 2 to move along the length direction of the lead screw 411; the rotating shaft 416 is rotatably connected to the support plate 11, and along the direction from the second clamping unit 3 to the first clamping unit 2, the rotating shaft 416 is sequentially fixedly connected to the ratchet 43, the second pulley 414, and the drive member 412; the first pulley 413 is connected to the second pulley 414 through the belt 415.

[0033] In this embodiment, the drive component 412 is a handwheel 242; however, in order to reduce the labor intensity of the workers, a motor can also be selected.

[0034] By connecting the ratchet 43 and the second pulley 414 to the rotating shaft 416, the second pulley 414 and the ratchet 43 rotate together. The pawl 44 engages with the ratchet 43, so that the ratchet 43 can only rotate in one direction, thereby making the second pulley 414 rotate in one direction, and thus making the lead screw 411 rotate in one direction. This ensures that the first clamping unit 2 can only move away from the second clamping unit 3, thus meeting the requirements of the tensile endurance test.

[0035] The specific working process of the first drive module 41 is as follows: the operator rotates the drive component 412 in the forward direction, which drives the second pulley 414 and the ratchet 43 to rotate together. This causes the second pulley 414 to drive the first pulley 413 to rotate through the belt 415. The rotation of the first pulley 413 drives the lead screw 411 to rotate. The rotation of the lead screw 411 drives the first clamping unit 2 away from the second clamping unit 3, causing the copper foil to be stretched, thereby performing tensile strength test and tensile durability test.

[0036] Preferably, the diameter of the first pulley 413 is smaller than the diameter of the second pulley 414. Since the pulling speed required for the copper foil tensile strength test is not high, this setting reduces the effort required when rotating the drive component 412.

[0037] Preferably, the support plate 11 has a first direction, and the side of the support plate 11 facing the first drive module 41 is provided with two arc-shaped pieces 12. The length direction of the arc-shaped pieces 12 extends along the first direction, and the two arc-shaped pieces 12 form a sliding channel. Along the first direction, one of the arc-shaped pieces 12 is provided with a first notch 121 and a second notch 122. The control rod 42 is slidably connected in the sliding channel, and the outer peripheral surface of the control rod 42 is provided with a limiting block 421. The pawl 44 is provided with a pressure plate 431 at one end near the control rod 42.

[0038] When the limiting block 421 is located within the first notch 121, the control rod 42 disengages from the pressure plate 431, so that the pawl 44 engages with the ratchet 43;

[0039] When the limiting block 421 is located within the second notch 122, the end of the control rod 42 abuts against the pressure plate 431, causing the pawl 44 to rotate and disengage from the ratchet 43.

[0040] In this embodiment, the control rod 42 is cylindrical in shape, and the limiting block 421 can move in the gap between the free ends of the two arc-shaped pieces 12.

[0041] The specific operation procedure of the control lever 42 is as follows: When performing the tensile endurance test, the control lever 42 is moved upward, so that the limiting block 421 is moved to the position of the first notch 121, and the limiting block 421 is rotated into the first notch 121, so that the control lever 42 is disengaged from the pressure plate 431. Under the elastic force of the elastic element 45, the pawl 44 engages with the ratchet 43, so that the first drive module 41 can only drive the first clamping unit 2 away from the second clamping unit 3, so that the copper foil is stretched to a certain distance and held in that position, thereby completing the tensile endurance test.

[0042] When the first clamping unit 2 needs to approach the second clamping unit 3 or to perform a tensile strength test, the control lever 42 is moved downwards, causing the limiting block 421 to move to the position of the second notch 122, and the limiting block 421 is rotated into the second notch 122. At this time, the control lever 42 will press against the pressure plate 431 and push the pressure plate 431 to rotate downwards, causing the pawl 44 to disengage from the ratchet 43. This allows the first drive module 41 to drive the first clamping unit 2 to approach or move away from the second clamping unit 3, which can not only meet the needs of multiple tests, but also improve the service life of the ratchet 43 and the pawl 44.

[0043] Preferably, the first clamping unit 2 includes a movable plate 21, a fixed clamping block 22, a movable clamping block 23, and a second drive module 24; the lead screw 411 is connected to the movable plate 42, and the lead screw 411 is used to drive the movable plate 21 to move along the length direction of the lead screw 411; along the first direction, the second drive module 24, the movable clamping block 23, and the fixed clamping block 22 are arranged sequentially on the side of the movable plate 21 facing the second clamping unit 3; the power output end of the drive module is connected to the movable clamping block 23, and the second drive module 24 is used to drive the movable clamping block 23 to move closer to or away from the fixed clamping block 22.

[0044] In this embodiment, the movable plate 21 is slidably connected to the base plate 1 via a slide rail. The movable plate 21 is connected to the lead screw 411, so that when the lead screw 411 rotates, it can drive the movable plate 21 to move.

[0045] The specific operation process of the first clamping unit 2 is as follows: place one end of the copper foil on the fixed clamping block 22, drive the second driving module 24 to move the moving clamping block 23 close to the fixed clamping block 22, so that the moving clamping block 23 and the fixed clamping block 22 can clamp one end of the copper foil.

[0046] The second clamping unit 3 has a structure that is basically the same as that of the first clamping unit 2. The second clamping unit 3 includes a fixed plate, a second fixed clamping block, a second movable clamping block, and a third drive module. The second fixed clamping block, the second movable clamping block, and the third drive module have the same structure as the fixed clamping block 22, the movable clamping block 23, and the second drive module 24, respectively. The fixed plate is connected to the end of the base away from the support plate 11. The clamping operation process of the second clamping unit 3 is the same as that of the first clamping unit 2.

[0047] Preferably, the first drive module 41 includes a screw 241 and a handwheel 242. The moving plate 21 is provided with a connecting plate 211 on the side facing the second clamping unit 3. The screw 241 is threadedly connected to the connecting plate 211. One end of the screw 241 along its length is rotatably connected to the moving clamping block 23, and the other end is connected to the handwheel 242.

[0048] In this embodiment, the screw 241 is threadedly connected to the connecting plate 211. One end of the screw 241 is rotatably connected to the movable clamping block 23 via a bearing, and the other end is connected to the handwheel 242. When the operator rotates the handwheel 242, the screw 241 rotates on the connecting plate 211, thereby causing the movable clamping block 23 to move closer to or away from the fixed clamping block 22.

[0049] More preferably, the movable clamping block 23 is provided with a guide shaft, which is connected to the connecting plate 211. The guide shaft can move along the first direction. By providing the guide shaft, the movable clamping block 23 is prevented from rotating or shaking during movement, thereby improving stability.

[0050] Preferably, the base is provided with a scale 13, the length direction of which extends along the arrangement direction of the first clamping unit 2 and the second clamping unit 3, and the scale 13 is located on one side of the moving plate 21; the side of the moving plate 21 facing the scale 13 is provided with a pointer 212; the pointer 212 cooperates with the scale 13 to measure the moving distance of the first clamping unit 2.

[0051] In this embodiment, by setting the scale 13 and the pointer 212, the staff can easily record the initial position and the position after the test of the moving plate 21, thereby calculating the tensile strength and tensile endurance.

[0052] Preferably, both the movable clamping block 23 and the fixed clamping block 22 have an anti-slip layer on their surfaces. By providing the anti-slip layer, the friction between the copper foil and the movable clamping block 23 and the fixed clamping block 22 can be increased, preventing the copper foil from detaching from the movable clamping block 23 and the fixed clamping block 22 when stretched.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A copper foil tensile strength testing device, comprising a base plate, a first clamping unit, a second clamping unit, and a driving unit; wherein the base plate is provided with a support plate, and the support plate, the first clamping unit, and the second clamping unit are sequentially connected to the base plate; characterized in that, The drive unit includes a first drive module, a control lever, a ratchet, a pawl, and an elastic element. The first drive module is connected to the support plate, and its power output end is connected to the first clamping unit. The first drive module is used to drive the first clamping unit closer to or further away from the second clamping unit. The ratchet is connected to the first drive module. The pawl is rotatably connected to the support plate. One end of the elastic element is connected to the support plate, and the other end is connected to the pawl. The elastic element is used to keep the pawl engaged with the ratchet. The control lever is slidably connected to the support plate and is used to control the pawl to disengage from the ratchet.

2. The copper foil tensile strength testing device according to claim 1, characterized in that, The first drive module includes a lead screw, a drive component, a first pulley, a second pulley, a belt, and a rotating shaft. One end of the lead screw is rotatably connected to the support plate along its length and passes through the support plate to be fixedly connected to the first pulley. The other end is rotatably connected to the second clamping unit. The lead screw is connected to the first clamping unit and is used to drive the first clamping unit to move along the length of the lead screw. The rotating shaft is rotatably connected to the support plate. Along the direction from the second clamping unit to the first clamping unit, the rotating shaft is sequentially fixedly connected to the ratchet, the second pulley, and the drive component. The first pulley is connected to the second pulley via the belt.

3. The copper foil tensile strength testing device according to claim 2, characterized in that, The diameter of the first pulley is smaller than the diameter of the second pulley.

4. The copper foil tensile strength testing device according to claim 2, characterized in that, The support plate has a first direction, and two arc-shaped pieces are provided on the side of the support plate facing the first drive module. The length direction of the arc-shaped pieces extends along the first direction, and the two arc-shaped pieces form a sliding channel. Along the first direction, one of the arc-shaped pieces has a first notch and a second notch. The control rod is slidably connected in the sliding channel, and a limiting block is provided on the outer peripheral surface of the control rod. A pressure plate is provided at one end of the pawl near the control rod. When the limiting block is located within the first notch, the control lever disengages from the pressure plate, so that the pawl engages with the ratchet. When the limiting block is located within the second notch, the end of the control lever abuts against the pressure plate, causing the pawl to rotate and disengage from the ratchet.

5. The copper foil tensile strength testing device according to claim 4, characterized in that, The first clamping unit includes a movable plate, a fixed clamping block, a movable clamping block, and a second drive module; the lead screw is connected to the movable plate, and the lead screw is used to drive the movable plate to move along the length direction of the lead screw; along a first direction, the second drive module, the movable clamping block, and the fixed clamping block are arranged sequentially on the side of the movable plate facing the second clamping unit; the power output end of the second drive module is connected to the movable clamping block, and the drive module is used to drive the movable clamping block to move closer to or away from the fixed clamping block.

6. The copper foil tensile strength testing device according to claim 5, characterized in that, The second drive module includes a screw and a handwheel. The side of the moving plate facing the second clamping unit is provided with a connecting plate. The screw is threadedly connected to the connecting plate. The length direction of the screw extends along the first direction. One end of the screw along its length direction is rotatably connected to the moving clamping block, and the other end is connected to the handwheel.

7. The copper foil tensile strength testing device according to claim 5, characterized in that, The base is provided with a scale, the length of which extends along the arrangement direction of the first clamping unit and the second clamping unit, and the scale is located on one side of the moving plate; the side of the moving plate facing the scale is provided with a pointer; the pointer cooperates with the scale to measure the moving distance of the first clamping unit.

8. The copper foil tensile strength testing device according to claim 5, characterized in that, Both the movable clamping block and the fixed clamping block have an anti-slip layer on their surfaces.

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