CN118294300B - Toe cap upper material impact test equipment and test method - Google Patents
Toe cap upper material impact test equipment and test method Download PDFInfo
- Publication number
- CN118294300B CN118294300B CN202410711431.2A CN202410711431A CN118294300B CN 118294300 B CN118294300 B CN 118294300B CN 202410711431 A CN202410711431 A CN 202410711431A CN 118294300 B CN118294300 B CN 118294300B
- Authority
- CN
- China
- Prior art keywords
- impact
- test
- swing arm
- circuit board
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
本发明实施例公开了一种鞋头帮面材料撞击试验设备及试验方法，涉及材料检测技术领域。该试验设备通过传动关系可调的第一旋转轴组件和第二旋转轴组件，并通过测试控制电路板自动控制第一旋转轴组件和第二旋转轴组件之间的传动关系，实现了将摆臂抬起到指定的预设撞击扬角后做自由落体摆动，从而使得摆臂端部固定的测试样可按照指定的撞击能量撞击至标准板，很方便且准确的实现了对鞋头帮面材料抗撞击性能的测试，进而可以有效提升产品的出厂质量。
The embodiment of the present invention discloses a shoe upper material impact test device and test method, which relates to the technical field of material detection. The test device realizes a swing arm that is lifted to a specified preset impact angle and then performs a free fall swing, through a first rotating shaft assembly and a second rotating shaft assembly with adjustable transmission relationship, and a test control circuit board that automatically controls the transmission relationship between the first rotating shaft assembly and the second rotating shaft assembly, so that the test sample fixed at the end of the swing arm can impact the standard plate according to the specified impact energy, and conveniently and accurately realizes the test of the impact resistance of the shoe upper material, thereby effectively improving the factory quality of the product.
Description
Technical Field
The embodiment of the invention relates to the technical field of material detection, in particular to a toe cap upper material impact test device and a test method.
Background
In actual life, the toe cap upper material cannot be kicked to hard stone, cement board, ceramic tile and other barriers in the wearing process, so that the toe cap upper material has the bottom exposing phenomena of coating stripping, falling and the like, or the sole and the upper or the outsole and the middle and outer sole are stripped, which not only affects the beauty of the shoe, but also can cause the damage of the functions of the shoe part. At present, when shoes leave factories for inspection, the toe cap upper materials are not tested enough, and the anti-collision performance of the toe cap upper materials cannot be evaluated.
Disclosure of Invention
The embodiment of the invention provides a device and a method for testing the impact of a toe cap upper material, so as to evaluate the impact resistance of the toe cap upper material.
In a first aspect, an embodiment of the present invention provides a toe cap upper material impact test apparatus, including a base, a case and a standard plate holder fixed on the base, the standard plate holder being used for fixing a standard plate;
A first rotating shaft assembly is inserted into one side, close to the standard plate fixing frame, of the box body; a swing arm is arranged on the outer side part of the box body of the first rotating shaft assembly, a clamp is arranged at the end part of the swing arm and used for fixing a test sample, and the test sample can be impacted to the standard plate when the swing arm swings in a free falling manner; the end part of the first rotating shaft assembly, which is positioned at the inner side part of the box body, is provided with a first transmission part;
A second rotating shaft assembly is arranged in the box body, and a second transmission member matched with the first transmission member is arranged at the end part of the second rotating shaft assembly; the second transmission piece is provided with a pushing device which is used for adjusting the distance between the second transmission piece and the first transmission piece;
A test control circuit board and a motor are also arranged in the box body; the test control circuit board is used for controlling the motor to drive the second rotating shaft assembly to rotate and controlling the pushing device to push the second transmission piece to be connected with the first transmission piece in a meshed mode so as to drive the first rotating shaft assembly to rotate through the second transmission piece and the first transmission piece; the test control circuit board is further used for controlling the pushing device to pull the second transmission piece to be disconnected with the first transmission piece when the swing arm is driven to rise to a preset impact lifting angle through the first rotating shaft assembly, so that the swing arm can swing in a free falling mode.
Optionally, the pushing device comprises a pressure plate and an electromagnet magnetic thruster; the second transmission part is connected with the second rotating shaft assembly through a coaxial coupler, and the pressure plate is sleeved on the second transmission part; the pressure plate comprises a spring with the elastic direction arranged along the axial direction, the pressure plate is pushed to push the second transmission piece when the electromagnet magnetic thruster is electrified, the spring is compressed, and the second transmission piece is pulled through the elastic force of the spring when the electromagnet magnetic thruster is deenergized.
Optionally, a counter is further arranged in the box body, and the counter is connected with a power supply circuit of the electromagnet magnetic thruster and is used for recording the impact times of the swing arm according to the power-on times of the electromagnet magnetic thruster.
Optionally, a lower belt pulley is arranged on the motor, an upper belt pulley is arranged on the second rotating shaft assembly, the lower belt pulley is connected with the upper belt pulley through a transmission belt, and the motor drives the second rotating shaft assembly to rotate through the lower belt pulley and the upper belt pulley.
Optionally, still be equipped with first photoelectric sensor and photoelectric sensing trigger device in the box, photoelectric sensing trigger device follows first rotation axis subassembly is rotatory, first photoelectric sensor sets up preset the corresponding position of striking angle of raising, so that when first rotation axis subassembly drives the swing arm rises preset the striking angle of raising the time first photoelectric sensor receives photoelectric sensing trigger device's trigger signal and transmits to test control circuit board.
Optionally, the first photoelectric sensor is disposed at an end of the first pendulum pointer, the first pendulum pointer is fixed on a sleeve coaxial with the first rotating shaft assembly, the sleeve is inserted into the box body along with the first rotating shaft assembly, an external pointer is fixed on an outer portion of the sleeve, located on the outer side of the box body, and the external pointer drives the first pendulum pointer to rotate at the same angle.
Optionally, a camera is disposed on the box body at a position close to the standard board, the camera is used for shooting a status image of the test sample, and the test control circuit board is further used for acquiring the status image and determining a status change of the test sample according to the status image.
Optionally, a second photoelectric sensor is further arranged in the box body, and the second photoelectric sensor is arranged at a corresponding position of the post-impact lift angle of the swing arm, so that when the swing arm swings in a free falling manner to impact the standard board and then rises to the post-impact lift angle, the second photoelectric sensor receives a trigger signal of the photoelectric sensing trigger device and transmits the trigger signal to the test control circuit board; the test control circuit board is also used for controlling and starting the camera to shoot after receiving the transmission signal of the second photoelectric sensor.
Optionally, the test control circuit board is further configured to turn off the second photoelectric sensor after receiving the transmission signal of the first photoelectric sensor, and turn on the second photoelectric sensor again after a preset period of time.
Optionally, be equipped with electromagnetic air-vent valve and air-vent pipe interface on the box, the air-vent pipe interface through first air-vent pipe with electromagnetic air-vent valve is connected, electromagnetic air-vent valve through the second air-vent pipe with the anchor clamps are connected, the air-vent pipe interface is used for connecting outside air-vent pipe in order to provide pneumatic air pressure, test control circuit board still is used for controlling the switching of the valve of electromagnetic air-vent valve.
Optionally, the second air tube is connected to the fixture from inside the first rotating shaft assembly and inside the swing arm.
Optionally, a 220V power interface and a power master switch are arranged on the box body, and a power control circuit board, a transformer, a frequency converter and a filter are also arranged in the box body; the 220V power interface is connected to the power master switch through a fuse, the power master switch is connected to the power control circuit board through the filter, and the power control circuit board is connected to the test control circuit board through the transformer and is connected to the motor through the frequency converter.
Optionally, a fan is further arranged on the box body, and the fan is connected with the power control circuit board and used for heat dissipation of equipment.
Optionally, the device further comprises an electronic balance, an electronic balance signal input interface is arranged on the box body, and the electronic balance is connected with the test control circuit board through the electronic balance signal input interface.
Optionally, a touch screen operation panel is disposed on the case, and the touch screen operation panel is connected with the test control circuit board, and is configured to receive test parameters and control instructions input by a user, and further is configured to display a test result.
Optionally, an upper computer signal transmission interface is arranged on the box body, and the upper computer signal transmission interface is connected with the test control circuit board and is used for receiving test parameters and control instructions sent by the upper computer and sending test results to the upper computer.
Optionally, the base includes a level gauge and a plurality of adjustable level feet for adjusting the base to a level.
In a second aspect, embodiments of the present invention further provide a toe cap upper material impact test method, which is applied to the toe cap upper material impact test apparatus provided in any embodiment of the present invention, and the method includes:
determining a preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing length of the swing arm and the impact lift angle and preset impact energy;
Lifting the swing arm to the preset impact lifting angle and then swinging in a free falling manner so as to enable the test sample fixed by the clamp at the end part of the swing arm to impact the standard plate;
acquiring an initial state image and a post-impact state image of the test sample;
Comparing the impacted state image with the initial state image, and repeatedly impacting the swing arm to the standard plate and acquiring the impacted state image if the image change does not reach the preset change; and if the image change reaches the preset change, counting the current impact times.
Optionally, the comparing the post-impact state image with the initial state image includes:
Scaling the impacted state image and the initial state image to a preset size and converting the scaled state image and the initial state image into gray scales;
Calculating a first pixel average value of the impacted state image, comparing the gray level of each pixel in the impacted state image with the first pixel average value, marking a comparison result larger than or equal to the first pixel average value as1, marking a comparison result smaller than the first pixel average value as 0, and combining the comparison results to obtain a first data string;
Calculating a second pixel average value of the initial state image, comparing the gray scale of each pixel in the initial state image with the second pixel average value respectively, marking a comparison result larger than or equal to the second pixel average value as 1, marking a comparison result smaller than the second pixel average value as 0, and combining the comparison results to obtain a second data string;
a number of different data bits between the first data string and the second data string is determined.
In a third aspect, an embodiment of the present invention further provides a toe cap upper material impact test method, which is applied to the toe cap upper material impact test apparatus provided in any embodiment of the present invention, where the method includes:
determining a preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing length of the swing arm and the impact lift angle and preset impact energy;
After the swing arm is lifted to the preset impact lifting angle, the swing arm swings in a free falling manner, so that a test sample fixed by the clamp at the end part of the swing arm impacts a standard plate, and the preset impact times are repeated;
an initial state image and a final state image of the test specimen are acquired to determine a state change of the test specimen from the initial state image and the final state image.
Optionally, the determining the preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing arm swing length, the impact lift angle and the preset impact energy includes:
a=arccos(cosβ-A/WL)；
Wherein a represents the preset impact lifting angle, beta represents the impact lift angle, A represents the preset impact energy, W represents the sum of the weight of the test sample and the weight of the clamp, and L represents the swing length of the swing arm.
The embodiment of the invention provides a toe cap upper material impact test device, which is characterized in that a transmission relation between a first rotating shaft assembly and a second rotating shaft assembly is adjustable, and the transmission relation between the first rotating shaft assembly and the second rotating shaft assembly is automatically controlled through a test control circuit board, so that a swing arm is lifted to a specified preset impact lifting angle and then is subjected to free falling swing, a test sample fixed at the end part of the swing arm can be impacted to a standard plate according to specified impact energy, the anti-impact performance of the toe cap upper material is conveniently and accurately tested, and the delivery quality of products can be effectively improved.
Drawings
FIG. 1 is a schematic view of a toe cap upper material impact testing apparatus according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a transmission relationship between two rotating shaft assemblies according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pushing device according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a transmission relationship between a motor and a rotating shaft assembly according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a photoelectric sensing trigger according to a first embodiment of the present invention;
FIG. 6 is a schematic diagram of a camera position according to a first embodiment of the present invention;
FIG. 7 is a schematic diagram of a pneumatic air pressure circuit according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an external interface according to a first embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a base according to a first embodiment of the present invention;
FIG. 10 is a schematic diagram of a fan and a touch screen panel according to an embodiment of the present invention;
FIG. 11 is a flow chart of a toe cap upper material impact test method provided in accordance with a second embodiment of the present invention;
FIG. 12 is a flow chart of a method for toe cap upper material impact testing according to a third embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Furthermore, the terms "first," "second," and the like, may be used herein to describe various directions, acts, steps, or elements, etc., but these directions, acts, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first rotating shaft assembly may be referred to as a second rotating shaft assembly, and similarly, a second rotating shaft assembly may be referred to as a first rotating shaft assembly, without departing from the scope of embodiments of the present invention. The first and second rotating shaft assemblies are both rotating shaft assemblies, but they are not the same rotating shaft assembly. The terms "first," "second," and the like, are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present invention, the meaning of "plurality" is at least two, for example, two, three, etc., unless explicitly defined otherwise.
Example 1
Fig. 1 and 2 are schematic structural views of a toe cap upper material impact test apparatus according to a first embodiment of the present invention, which is applicable to the case of performing quality inspection on a shoe product with respect to impact resistance before shipment. As shown in fig. 1 and 2, the apparatus includes a base 100, a case 200 and a standard plate holder 300 are fixed on the base 100, and the standard plate holder 300 is used for fixing a standard plate 301; a first rotating shaft assembly 210 is inserted into one side of the box body 200, which is close to the standard plate fixing frame 300; a swing arm 220 is arranged on the outer side part of the first rotating shaft assembly 210, which is positioned on the box 200, a clamp 230 is arranged at the end part of the swing arm 220, the clamp 230 is used for fixing a test sample 240, and the test sample 240 can strike the standard plate 301 when the swing arm 220 swings in a free falling manner; the end of the first rotating shaft assembly 210 located at the inner side of the case 200 is provided with a first transmission member 211; a second rotating shaft assembly 250 is arranged in the box 200, and a second transmission member 251 matched with the first transmission member 211 is arranged at the end part of the second rotating shaft assembly 250; a pushing device (not shown) is provided on the second transmission member 251, and is used for adjusting the distance between the second transmission member 251 and the first transmission member 211; a test control circuit board and a motor are also arranged in the box body 200; the test control circuit board is configured to control the motor to drive the second rotating shaft assembly 250 to rotate, and control the pushing device to push the second driving member 251 to be in meshed connection with the first driving member 211, so as to drive the first rotating shaft assembly 210 to rotate through the second driving member 251 and the first driving member 211; the test control circuit board is further configured to control the pushing device to pull the second transmission member 251 to disconnect from the first transmission member 211 when the swing arm 220 is driven to rise to a preset impact lifting angle by the first rotation shaft assembly 210, so that the swing arm 220 swings in a free falling manner.
The upper surface of the base 100 may be rectangular with a length of 45 cm ×a width of 44cm, the case 200 may be a cube with a length of 33 cm ×a width of 40 cm ×a height of 60cm, and may be fixed on one side of the upper surface of the base 100, and the standard board fixing frame 300 may be fixed on the other side of the upper surface of the base 100 and disposed near the case 200. The back side of the case 200 where the swing arm 220 is located may include a cover plate, which may be fastened by screws to maintain the apparatus. The standard plate holder 300 may include a bottom plate and two standard plate holders, the bottom plate may be fixed to the base 100 using screws, the standard plate holders may be fixed to the bottom plate, and the standard plate 301 may be detachably fixed between the two standard plate holders, and the fixed standard plate 301 may be perpendicular to the side of the case 200 to which it is adjacent to stabilize the impact. The standard board 301 may be made of marble, ceramic tile, or solid wood, and may be specifically selected and replaced according to the test requirements, and exemplary dimensions may be 10.5 cm ×15.0cm wide×3.0cm thick.
The side surface of the case 200, which is close to the standard plate fixing frame 300, is inserted with a first rotation shaft assembly 210, and the first rotation shaft assembly 210 may be inserted in the side surface vertically. The first rotation shaft assembly 210 may include a first bearing housing, which is penetratingly provided on the case 200 for supporting the first bearing, a first bearing inserted into the first bearing to stably rotate, and a first shaft, which may have a diameter of (75±1) mm, for example. The swing arm 220 may be detachably fixed at one end to an end portion of the first shaft at an outer portion of the case 200, so that the first shaft may be driven to move around the shaft, and the other end may be detachably and fixedly connected to the clamp 230. Illustratively, the diameter of the swing arm 220 may be (25±0.5) mm, and the effective length of the swing arm 220, i.e., the distance of the clamp 230 from the center of the first axis may be (390+2) mm, and the moment of the swing arm 220 in the horizontal direction may be (17.3±0.2) Nm. The clamp 230 may be manually clamped or automatically clamped with a clamping force required to ensure that the test specimen 240 does not loosen when it strikes the standard plate 301. The swing arm 220 and the standard plate 301 are properly arranged, so that the test sample 240 can strike the standard plate 301 (such as the center of the standard plate 301) when the swing arm 220 is lifted to swing in a free falling manner, and the swing arm 220 can be just in a free suspension position when the test sample 240 strikes the standard plate 301, so that the test result is more accurate. The test sample 240 may be obtained by penetrating a shoe last into a sample to be tested (such as a whole shoe) or fixing the sample to be tested (such as a toe cap upper material only) on the shoe last, wherein the shoe last size meets the requirement of GB/T3293.
The end of the first rotating shaft assembly 210 located at the inner portion of the case 200 is provided with a first transmission member 211, and the first transmission member 211 may be coaxially fixed to the end of the first shaft located at the inner portion of the case 200, for driving the first shaft to rotate, and the first transmission member 211 may be a passive friction wheel. The second rotating shaft assembly 250 may include a second bearing, and a second bearing housing, which may be fixed to the rear side surface of the housing 200 where the first bearing housing is located, for supporting the second bearing, and the second bearing is inserted into the second bearing to be stably rotated. The second rotating shaft assembly 250 may be coaxially disposed near the first transmission member 211, and the second transmission member 251 may be specifically coaxially fixed on the second shaft near the end of the first transmission member 211, for being driven to rotate by the second shaft, and the second transmission member 251 may be a driving friction wheel. The first rotation shaft assembly 210, the first transmission member 211, the second transmission member 251 and the second rotation shaft assembly 250 may all be coaxially disposed, and when the first transmission member 211 is in matching connection with the second transmission member 251, the second rotation shaft assembly 250 may rotate to drive the second transmission member 251 to rotate, the second transmission member 251 may rotate to drive the first transmission member 211 to rotate, the first transmission member 211 may rotate to drive the first rotation shaft assembly 210 to rotate, and the first rotation shaft assembly 210 may rotate to drive the swing arm 220 to lift the lifting angle. The contact surfaces of the driven friction wheel and the driving friction wheel are respectively provided with concave-convex grooves, so that the driving friction wheel can rotate to drive the driven friction wheel to rotate when the driven friction wheel is in meshed connection with the driving friction wheel. The pushing device is arranged on the second transmission member 251, and can push the second transmission member 251 to be close to the first transmission member 211, and can also restore the second transmission member 251 to the original position, so that the first transmission member 211 and the second transmission member 251 can be controlled to be connected or disconnected in a snap-fit manner.
The test control circuit board may be mounted on a side of the case 200 near the standard board mount 300 in order to facilitate circuit connection of the apparatus, and the motor may be fixed on the base 100 in order to ensure stability. The test control circuit board may include a single chip microcomputer, such as PIC18F255O, on which a control program for automatically controlling the test process may be run. After the test is started, the test control circuit board can control the motor to drive the second rotating shaft assembly 250 to rotate, and the test control circuit board can specifically drive the second rotating shaft assembly directly or through a transmission structure. The testing process may include one or more times (each time with a preset duration of automatic cycling) of driving the swing arm 220 up to a preset impact lift angle and then swinging in a free-falling manner. Specifically, the test control circuit board controls the pushing device to push the second transmission member 251 to be engaged with the first transmission member 211, so as to drive the swing arm 220 to rise until the swing arm 220 is detected to rise to a preset impact lifting angle, and the pushing device is controlled to pull the second transmission member 251 to disconnect from the first transmission member 211, so that the swing arm 220 swings in a free falling manner around the first shaft under the action of gravitational potential energy, and one impact test is completed. The motor can be controlled to rotate until the test is finished, or can be controlled to rotate only when the swing arm 220 needs to be driven to ascend.
On the basis of the above technical solution, optionally, as shown in fig. 3, the pushing device includes a pressure plate 261 and an electromagnet magnetic thruster 262; the second transmission member 251 is connected with the second rotation shaft assembly 250 through a coaxial coupling 252, and the pressure plate 261 is sleeved on the second transmission member 251; the pressure plate 261 includes a spring 2611 having an elastic force direction along an axial direction, the electromagnet magnetic thruster 262 pushes the second transmission member 251 by pushing the pressure plate 261 when energized, and causes the spring 2611 to compress, and the electromagnet magnetic thruster 262 pulls the second transmission member 251 by the elastic force of the spring 2611 when de-energized. The pressure plate 261 may be coaxially disposed with the second transmission member 251, and the coaxial coupling 252 may be used as a retracting lever of the electromagnet magnetic thruster 262. The pressure plate 261 and the electromagnet magnetic force thruster 262 are installed in the box 200, the electromagnet magnetic force thruster 262 can generate strong thrust after being electrified, the second transmission piece 251 and the first transmission piece 211 are connected in a meshed mode through the extension and contraction of the coaxial coupling 252, the electromagnet magnetic force thruster 262 does not have thrust after being powered off, and the second transmission piece 251 and the first transmission piece 211 are disconnected through the extension and contraction of the coaxial coupling 252 under the elasticity of the spring 2611. Accordingly, the test control circuit board may be specifically configured to control the powering on and off of the electromagnetic thrustor 262.
Further optionally, a counter is further disposed in the case 200, and the counter is connected to a power supply circuit of the electromagnetic thruster 262, and is configured to record the number of times of the swing arm 220 striking according to the number of times of the electromagnetic thruster 262 being energized. The counter can be specifically installed at a position on the side surface of the box 200, which is close to the standard plate fixing frame 300 and is close to the first bearing seat, so as to be connected with a power supply circuit of the electromagnet magnetic thruster 262, and the test control circuit board can trigger the counter to record the number of times of collision once when the electromagnet magnetic thruster 262 is controlled to be electrified once. Specifically, the test content may include how many times the impact test is required for the toe cap upper material to change in a predetermined manner, what kind of change is required for the toe cap upper material after the impact test is performed for a predetermined number of times, and the like, and the number of times of the impact may be counted by a counter.
On the basis of the above technical solution, as shown in fig. 4, optionally, the motor 270 is provided with a lower belt pulley 271, the second rotating shaft assembly 250 is provided with an upper belt pulley 253, the lower belt pulley 271 is connected with the upper belt pulley 253 through a transmission belt 272, and the motor 270 drives the second rotating shaft assembly 250 to rotate through the lower belt pulley 271 and the upper belt pulley 253. Wherein, lower belt pulley 271 and upper belt pulley 253 set up in box 200, and upper belt pulley 253 can set up with second rotation axis subassembly 250 coaxial, and motor 270 can drive lower belt pulley 271 rotation, and lower belt pulley 271 accessible drive belt 272 drive upper belt pulley 253 rotation, and upper belt pulley 253 can drive second rotation axis subassembly 250 rotation to can set up motor 270 on base 100, make equipment more stable.
On the basis of the above technical solution, optionally, a first photoelectric sensor and a photoelectric sensing trigger device are further disposed in the case 200, the photoelectric sensing trigger device follows the first rotation shaft assembly 210 to rotate, and the first photoelectric sensor is disposed at a position corresponding to the preset impact lifting angle, so that when the first rotation shaft assembly 210 drives the swing arm 220 to rise to the preset impact lifting angle, the first photoelectric sensor receives a trigger signal of the photoelectric sensing trigger device and transmits the trigger signal to the test control circuit board. The photoelectric sensing triggering device may be disposed on the first transmission member 211 near one side of the swing arm 220, and may specifically be disposed at a corresponding position of the swing arm 220, for example, in an initial state (in a lifting angle of 0 °), where the swing arm 220 freely hangs, and at this time, the photoelectric sensing triggering device may be disposed at a position vertically below the axis of the first rotation shaft assembly 210 on the first transmission member 211. When the first transmission member 211 rotates, the photo-sensing trigger device and the swing arm 220 are driven to rotate at the same angle. The first photoelectric sensor may be fixed at a preset impact angle position of the inner wall of the case 200 relative to the position of the photoelectric sensing trigger device in the initial state, so that when the first transmission member 211 rotates by a preset impact angle, the first photoelectric sensor may be opposite to the photoelectric sensing trigger device, so as to receive a trigger signal sent by the photoelectric sensing trigger device and transmit the trigger signal to the test control circuit board. The test control circuit board detects that the swing arm 220 rises to a preset impact lifting angle when receiving the transmission signal of the first photoelectric sensor, so that the pushing device can be controlled.
Further alternatively, as shown in fig. 5, the first photoelectric sensor 2811 is disposed at an end of a first pendulum pointer 281, the first pendulum pointer 281 is fixed on a sleeve coaxial with the first rotating shaft assembly 210, the sleeve is inserted into the case 200 along with the first rotating shaft assembly 210, an external pointer 282 is fixed on an outer portion of the sleeve, which is located on the case 200, and the external pointer 282 drives the first pendulum pointer 281 to rotate at the same angle. An exemplary length of the first pendulum pointer 281 may be 4 cm, which is fixed to the outer pointer 282 and has a uniform angle, and is fixed to a sleeve coaxial with the outside of the first rotating shaft assembly 210, and may rotate 360 °, and the structure has a damping effect, so that the pointer does not freely change its position, i.e., does not rotate with the first rotating shaft assembly 210. The external pointer 282 can be manually moved, so that the first photoelectric sensor 2811 is driven to rotate around the shaft to a specified preset impact angle, and the preset impact angle can be adjusted. Further, a dial for indicating the preset impact angle value may be further arranged outside the case 200, specifically, a 1/4 circular dial with a radius of 6 cm, and in an initial state, the position of the swing arm 220 may correspond to the 0 ° position on the dial, and may scale the angle clockwise to a 1/4 circle of 90 °. In the testing process, the required preset impact angle can be determined according to the impact energy set by the user, so that the user can dial the external pointer 282 to the corresponding angle position by referring to the dial, namely, the first photoelectric sensor 2811 rotates to the required preset impact angle position, and when the swing arm 220 is driven to rise to the preset impact angle, the first photoelectric sensor 2811 can receive the trigger signal of the photoelectric sensing trigger device 280.
On the basis of the above technical solution, optionally, as shown in fig. 6, a camera 290 is disposed on the box 200 near the standard board 301, the camera 290 is used for capturing a status image of the test sample 240, and the test control circuit board is further used for acquiring the status image and determining a status change of the test sample 240 according to the status image. The camera 290 may be a high-definition camera, specifically may be disposed at a projection position of a head (a toe cap upper material position) of the test specimen 240 on the case 200 when the swing arm 220 freely hangs, and may be connected to the test control circuit board through a data line, and the shooting angle may be a head position of the test specimen 240 when the swing arm 220 is at a lift angle position after being impacted, so as to ensure a shooting effect. Illustratively, the impact angle of lift is 9 ° when the impact energy is set to 0.30-1.00J through impact experiments. The test control circuit board may control the camera 290 to photograph at a preset period to acquire a state image of the test specimen 240, thereby analyzing a state change of the test specimen 240 according to the acquired state image.
Further optionally, a second photoelectric sensor is further disposed in the box 200, and the second photoelectric sensor is disposed at a position corresponding to an impact post-rising angle of the swing arm 220, so that when the swing arm 220 swings in a free falling manner to impact the standard board 301 and then rises to the impact post-rising angle, the second photoelectric sensor receives a trigger signal of the photoelectric sensing trigger device 280 and transmits the trigger signal to the test control circuit board; the test control circuit board is further configured to control starting the camera 290 to take a picture after receiving the transmission signal of the second photoelectric sensor. The second photoelectric sensor may be fixed at the position of the inner wall of the case 200 opposite to the position of the photoelectric sensing trigger device 280 in the initial state, or may be disposed at the end of the second pendulum pointer, where the second pendulum pointer may be sleeved on the first rotating shaft assembly 210, and the pointer points to the corresponding position of the angle of lift after impact and does not rotate along with the first rotating shaft assembly 210. Thus, when the swing arm 220 reaches the lift angle position after the impact, the second photoelectric sensor may face the photoelectric sensing trigger device 280, so as to receive the trigger signal sent by the photoelectric sensing trigger device 280 and transmit the trigger signal to the test control circuit board. The test control circuit board detects that the swing arm 220 reaches the lift angle position after collision when receiving the transmission signal of the second photoelectric sensor, and can send a shooting control signal to the camera 290 at this time, so as to control the camera 290 to start to shoot one or more current state images. By detecting the position of the swing arm 220 and controlling the camera 290 to shoot, the initial state and the optimal state image after each impact can be accurately obtained, and the storage space is saved.
Further optionally, the test control circuit board is further configured to turn off the second photoelectric sensor after receiving the transmission signal of the first photoelectric sensor 2811, and turn on the second photoelectric sensor again after a preset period of time. The preset duration may be, for example, 3 seconds. Specifically, the camera 290 is started to shoot only when the swing arm 220 is detected to reach the lift angle position after the collision in the process of driving the swing arm 220 to lift. Taking the test content of multiple impacts as an example, after the test is started, the test control circuit board supplies power to the electromagnet magnetic thruster 262, the swing arm 220 rises from the freely-suspended position to the preset impact lifting angle, when the swing arm 220 passes through the impact lifting angle position, the second photoelectric sensor receives the trigger signal and transmits the trigger signal to the test control circuit board, the test control circuit board can output a level pulse to the camera 290, and the camera 290 starts shooting to obtain an initial state image of the toe cap upper material. After the swing arm 220 rises from the freely suspended position to the preset impact lifting angle position, the first photoelectric sensor 2811 receives a trigger signal and transmits the trigger signal to the test control circuit board, and the test control circuit board cuts off the power of the electromagnet magnetic thruster 262 and simultaneously cuts off the power of the second photoelectric sensor. In the process that the swing arm 220 swings freely to strike the standard board 301, the second photoelectric sensor does not provide a transmission signal for the test control circuit board, the test control circuit board does not send a photographing instruction, and the camera 290 does not photograph. After the power of the second photoelectric sensor is disconnected for a preset period of time, the singlechip in the test control circuit board can automatically send a power-on instruction to the electromagnet magnetic thruster 262 and the second photoelectric sensor, the swing arm 220 starts to rise to a preset impact lifting angle position again, in the process, when the swing arm 220 passes through the impact lifting angle position, the second photoelectric sensor receives a trigger signal again and transmits the trigger signal to the test control circuit board, and the test control circuit board outputs a level pulse to the camera 290 again to start shooting. The above operations may be repeated until the test is completed, and whether the end condition is satisfied may be further detected by the test control circuit board. The test control circuit board can intelligently compare the state image after each impact with the initial state image, and the test is ended when the comparison result determines that the toe cap upper material is subjected to the preset change, or the test control circuit board can acquire the impact times, and the test is ended when the impact times reach the preset impact times. After the test control circuit board determines that the test is finished according to the preset change of the toe cap upper material, the user can take down the test sample 240, manually compare the current state of the test sample 240 with the initial state to confirm the accuracy of the automatic judgment result, and if the toe cap upper material does not reach the preset change, the test sample 240 can be put back, and the test process is continuously repeated until the toe cap upper material is subjected to the preset change to finish the test.
On the basis of the above technical solution, as shown in fig. 7 and 8, optionally, the box 200 is provided with an electromagnetic pressure regulating valve 201 and an air pressure pipe interface 202, the air pressure pipe interface 202 is connected with the electromagnetic pressure regulating valve 201 through a first air pressure pipe 2021, the electromagnetic pressure regulating valve 201 is connected with the fixture 230 through a second air pressure pipe 2011, the air pressure pipe interface 202 is used for connecting an external air pressure pipe to provide pneumatic air pressure, and the test control circuit board is also used for controlling opening and closing of a valve of the electromagnetic pressure regulating valve 201. Specifically, the clamp 230 may be a pneumatic last clamp, thereby implementing automatic clamping. The air-pressure air pipe interface 202 may be disposed at the bottom of the back side of the side where the swing arm 220 is located on the box 200, the first air-pressure air pipe 2021 may connect the air-pressure air pipe interface 202 and the electromagnetic pressure regulating valve 201 in the box 200, and the electromagnetic pressure regulating valve 201 may be disposed at a position close to the first transmission member 211 in the side of the side where the swing arm 220 is located on the box 200. The electromagnetic pressure regulating valve 201 is usually set to 4 atmospheres, and can be adjusted according to the set impact energy, so as to ensure that the clamping force of the clamp 230 is effective. When the test control circuit board obtains the last clamping instruction, a current can be output to enable the valve of the electromagnetic pressure regulating valve 201 to be opened, so that the first air pressure pipe 2021 is communicated with the second air pressure pipe 2011 to apply air pressure to the clamp 230, and the clamp 230 automatically clamps. When the test control circuit board obtains the last loosening instruction, the current output can be disconnected so that the valve of the electromagnetic pressure regulating valve 201 is closed, and therefore the first air pressure pipe 2021 and the second air pressure pipe 2011 are closed, the second air pressure pipe 2011 is deflated, and the clamp 230 is loosened.
Further alternatively, as shown in fig. 7, the second air pipe 2011 is connected to the jig 230 from inside the first rotation shaft assembly 210 and inside the swing arm 220. The first rotating shaft assembly 210 and the swing arm 220 are hollow to penetrate the second air pipe 2011, so as to avoid the air pipe from being exposed to influence the test.
On the basis of the above technical solution, as shown in fig. 8 and 9, the box 200 is provided with a 220V power interface 203 and a power master switch 204, and the box 200 is also provided with a power control circuit board, a transformer, a frequency converter and a filter; the 220V power interface 203 is connected to the power master switch 204 through a fuse, the power master switch 204 is connected to the power control circuit board through the filter, and the power control circuit board is connected to the test control circuit board through the transformer and is connected to the motor through the frequency converter. Wherein, 220V power interface 203 can set up in the back side bottom of the side that swing arm 220 is located on box 200, and power master switch 204 can set up in the side that swing arm 220 is located on box 200 in the side be close to the position of power control circuit board, and the motor can be 220V alternating current motor, and power control circuit board can be fixed on the inner wall of the side that swing arm 220 is located on box 200, and transformer, converter and wave filter can be fixed on base 100. The external 220V special power line is divided into three paths by a 220V power interface 203, a live wire is connected to a power master switch 204 by a fuse, a zero line is directly connected to the power master switch 204, a ground wire is connected with a box body 200, the power master switch 204 can control the power on-off of the whole equipment, and when the current exceeds the maximum current which can be born by the equipment, the fuse is blown to protect a circuit. The power main switch 204 is connected to the power control circuit board through a filter, and can effectively filter out the frequency points of the specific frequency in the power line or the frequency outside the frequency points. The power supply control circuit board is connected to the test control circuit board through the transformer, can convert 220V alternating current into direct current of 5V or 12V and the like required by the test control circuit board, and can also supply power for direct current devices in the equipment through the test control circuit board. The power supply control circuit board is connected to the motor through the frequency converter, so that the rotating speed of the 220V alternating current motor can be adjusted. When the test is started, the test control circuit board can transmit a start test signal to the power control circuit board so that the power control circuit board is connected with the 220V alternating current motor to start working.
On the basis of the above technical solution, optionally, as shown in fig. 10, a fan 205 is further provided on the case 200, and the fan 205 is connected to the power control circuit board for heat dissipation of the device. The fan 205 may be disposed at a position near the power control circuit board and the test control circuit board in a side surface of the case 200 where the swing arm 220 is located.
On the basis of the above technical solution, optionally, as shown in fig. 8, the apparatus further includes an electronic balance, an electronic balance signal input interface 206 is disposed on the case 200, and the electronic balance is connected to the test control circuit board through the electronic balance signal input interface 206. The electronic balance signal input interface 206 may be disposed at the bottom of the back side of the case 200 where the swing arm 220 is located, and the electronic balance may be placed on an electronic balance vibration-proof stand and connected to the electronic balance signal input interface 206 through a data line. Before starting the test, the test specimen 240 is placed on an electronic level, and the weight of the test specimen 240 can be automatically measured and transmitted to the test control circuit board, so that the test control circuit board can calculate a required preset impact angle according to the weight of the test specimen 240 and the preset impact energy.
On the basis of the above technical solution, optionally, as shown in fig. 10, a touch screen operation panel 207 is disposed on the case 200, where the touch screen operation panel 207 is connected to the test control circuit board, and is configured to receive test parameters and control instructions input by a user, and further is configured to display a test result. For example, the user may input a preset impact energy, select control to clamp or unclamp the test specimen 240, select control to start a test, select control the camera 290 to take a picture, etc. through the touch screen operation panel 207, and the touch screen operation panel 207 may also display an initial state image and a post-impact state image of the test specimen, a preset impact horn, the number of impacts, a test report, etc.
On the basis of the above technical solution, optionally, as shown in fig. 8, the box 200 is provided with an upper computer signal transmission interface 208, where the upper computer signal transmission interface 208 is connected with the test control circuit board, and is configured to receive test parameters and control instructions sent by an upper computer, and further is configured to send test results to the upper computer. The signal transmission interface 208 of the upper computer can be arranged at the bottom of the back side of the side where the swing arm 220 of the box 200 is located, and is a special interface for signal transmission between the upper computer and the test control circuit board. The upper computer can comprise a host and a display, can realize the same functions as the touch screen operation panel 207, and is parallel to the touch screen operation panel 207, thereby being more beneficial to editing and modifying the test report.
On the basis of the above technical solution, optionally, as shown in fig. 9, the base 100 includes a level 101 and a plurality of adjustable level feet 102, which are used for adjusting the base 100 to be horizontal. Specifically, a horizontal leg 102 may be disposed at each of four corners of the base 100, and the base 100 may be adjusted to be horizontal by adjusting the horizontal leg 102 and simultaneously observing the level 101.
According to the toe cap upper material impact test equipment provided by the embodiment of the invention, the transmission relation between the first rotating shaft assembly and the second rotating shaft assembly is automatically controlled through the first rotating shaft assembly and the second rotating shaft assembly with the adjustable transmission relation, and the swing arm is lifted to the specified preset impact lifting angle to swing in a free falling manner, so that a test sample fixed at the end part of the swing arm can impact to the standard plate according to the specified impact energy, the test on the anti-impact performance of the toe cap upper material is conveniently and accurately realized, and the delivery quality of products can be effectively improved.
Example two
Fig. 11 is a flowchart of a method for impact testing of a toe cap upper material according to a second embodiment of the present invention, and the method is applicable to a toe cap upper material impact testing apparatus according to any of the embodiments of the present invention when a quality test for impact resistance is performed on a shoe product before shipment. As shown in fig. 11, the method specifically comprises the following steps:
S121, determining a preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing length of the swing arm, the impact lift angle and the preset impact energy.
S122, lifting the swing arm to the preset impact lifting angle, and then swinging in a free falling mode, so that the test sample fixed by the clamp at the end part of the swing arm impacts the standard plate.
S123, acquiring an initial state image and a post-impact state image of the test sample.
S124, comparing the impacted state image with the initial state image, and repeatedly impacting the swing arm to the standard plate and acquiring the impacted state image if the image change does not reach the preset change; and if the image change reaches the preset change, counting the current impact times.
Specifically, before the test starts, the horizontal ground feet can be manually adjusted, the level gauge is observed, the base is kept horizontal, test safety can be ensured by checking test equipment, then a shoe tree is penetrated into a sample to be tested or the sample to be tested is fixed on the shoe tree, a test sample is obtained, and the sample to be tested needs to be ensured to be clean and free from damage. After obtaining the test sample, the test sample may be placed on an electronic balance and left for a period of time (e.g., 3 seconds), and the weight of the obtained test sample may be transferred to a test control circuit board. On the other hand, test parameters including preset impact energy (controllable in 0.30-1.00J) and the like can be set through a touch screen operation panel or an upper computer according to the properties of a sample to be tested and test requirements, the weight of the clamp and the swing length of the swing arm are relatively fixed, the clamp and the swing length of the swing arm can be preset in advance, the impact lift angle can be preset (such as 9 degrees) after the impact lift angle is determined in advance through an impact experiment, and therefore the test control circuit board can automatically determine the preset impact lift angle according to the weight of the sample to be tested, the weight of the clamp, the swing length of the swing arm, the impact lift angle and the preset impact energy.
Optionally, the determining the preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing arm swing length, the impact lift angle and the preset impact energy includes:
a=arccos(cosβ-A/WL)；
Wherein a represents the preset impact lifting angle, beta represents the impact lift angle, A represents the preset impact energy, W represents the sum of the weight of the test sample and the weight of the clamp, and L represents the swing length of the swing arm. Specifically, when the swing arm freely falls from a preset impact lifting angle position, potential energy is converted into kinetic energy to impact on the standard plate, and the residual energy of the swing arm enables the swing arm to rise to an impact lift angle. The following relationship is provided according to the principle of energy conservation: WL (1-cosa) =wl (1-cos β) +a+aa+aβ, where Aa represents the work consumed by the swing arm to overcome air resistance in angle a and aβ represents the work consumed by the swing arm to overcome air resistance in angle β. Aa and aβ can be generally ignored, and thus a=wl (cos β -cosa), i.e., the above formula, can be obtained.
After the preset impact angle is determined, the impact angle can be displayed to a user through a touch screen operation panel or an upper computer, and then the user can adjust the angle of the first photoelectric sensor according to the preset impact angle. The user can also put the test sample into the clamp, and click the button of the clamping shoe tree through the touch screen operation panel or the upper computer so as to fix the test sample. Then the 'start test' button can be clicked by the touch screen operation panel or the upper computer, after the automatic control test system on the singlechip receives the start test signal, the automatic control test system can be transmitted to the power control circuit board by the test control circuit board so as to switch on the motor for starting work, and meanwhile, the test control circuit board outputs a power signal for switching on the magnetic thruster of the electromagnet so as to drive the swing arm to rise to a preset impact lifting angle and then to swing to impact the standard board in a free falling manner. In the rising process, when the swing arm passes through the impact angle, the test sample is shot through the camera, and the state image obtained for the first time is used as an initial state image. Repeatedly driving the swing arm to rise to a preset impact lifting angle at each interval for a preset time period (such as 3 seconds), then, performing free falling body swing impact standard plate, comparing the impact state image with the initial state image after each time of impact state image is obtained, if the image change does not reach the preset change (such as the change of the color, the appearance and the shape of the toe cap upper material), continuing the next impact test, and comparing the newly obtained impact state image with the initial state image. Counting the impact times by a counter in the process until the image change reaches the preset change, recording the current impact times, and stopping swinging of the swing arm. And then the test sample can be taken down by clicking a button of releasing the shoe last through a touch screen operation panel or an upper computer, and whether the predetermined change is reached is manually judged so as to confirm the accuracy of the automatic judging result of the system. If the preset change is not reached, the test sample can be re-fixed, the test process is continued until the system confirms that the preset change is reached and the system confirms that the preset change is also reached, the experiment is ended, and the current impact times are recorded. The driving process, the shooting control process, and the like may refer to the above embodiments, and will not be described here.
Optionally, the comparing the post-impact state image with the initial state image includes: scaling the post-impact state image and the initial state image to a preset size (such as 8×8) and converting the same into gray scale (such as 64 gray scale); calculating a first pixel average value of the impacted state image, comparing the gray level of each pixel in the impacted state image with the first pixel average value respectively, marking a comparison result of the first pixel average value which is more than or equal to 1 and a comparison result of the first pixel average value which is less than 0, and combining the comparison results to obtain a first data string (such as a 64-bit integer); calculating a second pixel average value of the initial state image, comparing the gray level of each pixel in the initial state image with the second pixel average value respectively, marking a comparison result larger than or equal to the second pixel average value as 1, marking a comparison result smaller than the second pixel average value as 0, and combining the comparison results to obtain a second data string (such as an integer of 64 bits); a number of different data bits between the first data string and the second data string is determined. That is, how many bits in the first data string are different from those in the second data string are compared, which theoretically corresponds to a hamming distance (HAMMING DISTANCE), and in the information theory, the hamming distance between two equal-length strings is the number of different characters at the corresponding positions of the two strings. Further, if the number of different data bits exceeds a predetermined number of bits (e.g., 10), it may be determined that the predetermined change is reached.
After the test is completed, the anti-impact performance of the sample to be tested can be analyzed according to the test result (such as the impact times when the predetermined change occurs and the state image of the test sample), and a test report can be generated. The test report may include test results, descriptions of the sample to be tested (e.g., lot number, color, material, etc.), test parameters, test numbers, test dates, possible deviations from testing, and so forth. By automatically testing the anti-collision performance of the toe cap upper material, the delivery quality of the product can be simply and effectively improved.
Example III
Fig. 12 is a flowchart of a method for impact testing of a toe cap upper material according to a third embodiment of the present invention, and the method is applicable to the apparatus for impact testing of a toe cap upper material according to any of the embodiments of the present invention in a case where a quality test regarding impact resistance is performed on a shoe product before shipment. As shown in fig. 12, the method specifically comprises the following steps:
s131, determining a preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing length of the swing arm, the impact lift angle and the preset impact energy.
S132, lifting the swing arm to the preset impact lifting angle, and then swinging in a free falling manner, so that the test sample fixed by the clamp at the end part of the swing arm impacts the standard plate, and repeating the preset impact times.
S133, acquiring an initial state image and a final state image of the test sample, and determining the state change of the test sample according to the initial state image and the final state image.
Specifically, before the test starts, the horizontal ground feet can be manually adjusted, the level gauge is observed, the base is kept horizontal, test safety can be ensured by checking test equipment, then a shoe tree is penetrated into a sample to be tested or the sample to be tested is fixed on the shoe tree, a test sample is obtained, and the sample to be tested needs to be ensured to be clean and free from damage. After obtaining the test sample, the test sample may be placed on an electronic balance and left for a period of time (e.g., 3 seconds), and the weight of the obtained test sample may be transferred to a test control circuit board. On the other hand, test parameters including preset impact energy (controllable in 0.30-1.00J) and the like can be set through a touch screen operation panel or an upper computer according to the properties of a sample to be tested and test requirements, the weight of the clamp and the swing length of the swing arm are relatively fixed, the clamp and the swing length of the swing arm can be preset in advance, the impact lift angle can be preset (such as 9 degrees) after the impact lift angle is determined in advance through an impact experiment, and therefore the test control circuit board can automatically determine the preset impact lift angle according to the weight of the sample to be tested, the weight of the clamp, the swing length of the swing arm, the impact lift angle and the preset impact energy.
Optionally, the determining the preset impact lifting angle according to the weight of the test sample, the weight of the clamp, the swing arm swing length, the impact lift angle and the preset impact energy includes:
a=arccos(cosβ-A/WL)；
Wherein a represents the preset impact lifting angle, beta represents the impact lift angle, A represents the preset impact energy, W represents the sum of the weight of the test sample and the weight of the clamp, and L represents the swing length of the swing arm. Specifically, when the swing arm freely falls from a preset impact lifting angle position, potential energy is converted into kinetic energy to impact on the standard plate, and the residual energy of the swing arm enables the swing arm to rise to an impact lift angle. The following relationship is provided according to the principle of energy conservation: WL (1-cosa) =wl (1-cos β) +a+aa+aβ, where Aa represents the work consumed by the swing arm to overcome air resistance in angle a and aβ represents the work consumed by the swing arm to overcome air resistance in angle β. Aa and aβ can be generally ignored, and thus a=wl (cos β -cosa), i.e., the above formula, can be obtained.
After the preset impact angle is determined, the impact angle can be displayed to a user through a touch screen operation panel or an upper computer, and then the user can adjust the angle of the first photoelectric sensor according to the preset impact angle. The user can also put the test sample into the clamp, and click the button of the clamping shoe tree through the touch screen operation panel or the upper computer so as to fix the test sample. Then the 'start test' button can be clicked by the touch screen operation panel or the upper computer, after the automatic control test system on the singlechip receives the start test signal, the automatic control test system can be transmitted to the power control circuit board by the test control circuit board so as to switch on the motor for starting work, and meanwhile, the test control circuit board outputs a power signal for switching on the magnetic thruster of the electromagnet so as to drive the swing arm to rise to a preset impact lifting angle and then to swing to impact the standard board in a free falling manner. In the rising process, when the swing arm passes through the impact angle, the test sample is shot through the camera, and the state image obtained for the first time is used as an initial state image. And repeatedly driving the swing arm to rise to a preset impact lifting angle at each interval for a preset time (such as 3 seconds), then, swinging the swing arm in a free falling manner to impact the standard plate, stopping swinging the swing arm after the preset impact times are counted, and ending the test. The camera can be controlled by the test control circuit board to shoot the test sample only in the first impact process and the last impact process, the test sample can be shot in each impact process, an initial state image and a final state image are finally recorded, and other process state images can be used for knowing the state after each impact and are not used as the judgment basis of the impact end point. The system may then compare the resulting initial and final state images to determine the state change of the test sample, and may further determine if a predetermined change (breakage) has been reached. After the test is finished, the user can click a button of releasing the shoe tree through a touch screen operation panel or an upper computer to take down the test sample, and whether the test sample reaches the preset change is manually judged, so that the accuracy of the automatic judging result of the system is confirmed. The driving process, the shooting control process, the image comparison process, and the like may refer to the above embodiments, and will not be described here.
After the test is completed, the anti-impact performance of the sample to be tested can be analyzed according to the test result (such as whether the damage occurs after the test of the preset impact times and the state image of the test sample) and a test report can be generated. The test report may include test results, descriptions of the sample to be tested (e.g., lot number, color, material, etc.), test parameters, test numbers, test dates, possible deviations from testing, and so forth. By automatically testing the anti-collision performance of the toe cap upper material, the delivery quality of the product can be simply and effectively improved.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (21)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410711431.2A CN118294300B (en) | 2024-06-04 | 2024-06-04 | Toe cap upper material impact test equipment and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410711431.2A CN118294300B (en) | 2024-06-04 | 2024-06-04 | Toe cap upper material impact test equipment and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118294300A CN118294300A (en) | 2024-07-05 |
| CN118294300B true CN118294300B (en) | 2024-11-15 |
Family
ID=91688336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410711431.2A Active CN118294300B (en) | 2024-06-04 | 2024-06-04 | Toe cap upper material impact test equipment and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118294300B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323580A (en) * | 2016-09-21 | 2017-01-11 | 高铁检测仪器（东莞）有限公司 | Transmission device of roller skate front surface impact testing machine |
| CN106989890A (en) * | 2017-05-25 | 2017-07-28 | 黄河科技学院 | A kind of mechanical shock test's equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206187U (en) * | 1986-08-23 | 1987-10-28 | 温州市东风仪器厂 | Impact tester for heel of high-heeled shoes |
| US6289743B1 (en) * | 1999-03-31 | 2001-09-18 | Craig Norton | Shoe testing apparatus and method of use |
| MY136233A (en) * | 2002-11-18 | 2008-08-29 | Univ Putra Malaysia | Pendulum impact test rig |
| CN202276909U (en) * | 2011-09-30 | 2012-06-20 | 台州宝利特鞋业有限公司 | Heel fatigue resistance testing machine |
| CA3116218A1 (en) * | 2018-10-12 | 2020-04-16 | Spence SPENCER | Corrective shoe insole system for inducing positive forefoot striking |
| CN114705568B (en) * | 2022-05-11 | 2025-01-28 | 绍兴中纺联检验技术服务有限公司 | A toe cap impact resistance testing device and testing method thereof |
-
2024
- 2024-06-04 CN CN202410711431.2A patent/CN118294300B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323580A (en) * | 2016-09-21 | 2017-01-11 | 高铁检测仪器（东莞）有限公司 | Transmission device of roller skate front surface impact testing machine |
| CN106989890A (en) * | 2017-05-25 | 2017-07-28 | 黄河科技学院 | A kind of mechanical shock test's equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118294300A (en) | 2024-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2936005B2 (en) | Generator stator wedge impact test equipment | |
| US7412870B2 (en) | Method and apparatus for dynamic impact testing | |
| JP3867594B2 (en) | Vibration damping device performance evaluation apparatus and performance evaluation method | |
| US20040200264A1 (en) | Detecting method of a drop test and the device thereof | |
| WO1991006348A1 (en) | Sports implement swing analyzer | |
| JP2004249086A (en) | Portable apparatus for measuring flexibility of golf club head | |
| CN112595583B (en) | Device for detecting hardness of material | |
| CN110186783A (en) | Compression shear of dropping hammer impact test apparatus | |
| CN105784510A (en) | Falling weight type nut mechanical characteristic parameter testing experiment table | |
| JP2000055778A (en) | Drop test equipment | |
| CN111024537A (en) | Electromagnetic drive resiliometer | |
| CN113670754A (en) | Electromagnetic power concrete quality detection resiliometer device | |
| CN118294300B (en) | Toe cap upper material impact test equipment and test method | |
| CN110376219A (en) | A kind of experiment test device and its test method based on crack time of day | |
| CN110631788B (en) | Rigidity testing device and testing method | |
| CN216978589U (en) | Digital Hammer Test Auxiliary Device | |
| CN109596032B (en) | Large Drop Test Specimen Drop Height Measurement Method | |
| CN102636679B (en) | Automatic test apparatus for friction voltage | |
| CN205826438U (en) | A kind of drop hammer type nut mechanics parameters test experimental bed | |
| US2340277A (en) | Spring testing device | |
| CN204697996U (en) | A kind of frictional resistance dynamic angle tester | |
| CN204165847U (en) | A kind of falling ball impact test device | |
| CN220603198U (en) | Impact testing machine | |
| CN115451808B (en) | A detection device for building structure engineering | |
| CN110152276A (en) | An artificial intelligence running performance testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |