Safety shoe impact testing machine

CN204336003U Safety shoe impact testing machine

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<span class="search">Safety</span> shoe <span class="search">impact</span> testing machine

Technical field

The utility model relates to a shoe detecting device, in particular to a safety shoe impact testing machine.

Background technique

Safety shoes are a general term for safety shoes and protective footwear. They are generally used in different workplaces to protect the feet and legs from foreseeable injuries. Safety shoes are high-tech and high value-added footwear products. The production process of safety shoes has high requirements for raw materials, auxiliary materials, chemical materials, mechanical equipment, etc., and requires a large number of safety tests before they can be marketed. Among them, the toe cap of the safety shoe is generally made of steel or other high-strength materials, which plays an important protective role on the wearer's forefoot. Therefore, it is necessary to perform an impact test on the toe of the safety shoe. Test its firmness.

The traditional safety shoe impact testing machine mainly hits the toe of the safety shoe through a hammer with a certain kinetic energy to observe the damage of the toe. The defect is that in the test index of the safety shoe impact test, the toe cap only needs to be subjected to one blow, and if there are multiple strikes, the test result will be inaccurate. In the traditional safety shoe impact testing machine, there is a problem that the ram obtains kinetic energy by means of free fall, and after the gravitational potential energy is converted into kinetic energy, the ram with a certain speed directly hits the toe, and the ram is also subjected to the shoe. The counter-force given by the head rebounded upwards and then repeated two or more repeated hits, which reduced the credibility of the test results.

Utility model content

Based on this, a safety shoe impact testing machine for preventing secondary impact is provided.

The safety shoe impact testing machine comprises: a frame and a control box, and a table fixed on the frame, a guide rail, a driving mechanism, a first horizontal bar and a second horizontal bar, and the first horizontal bar and the second horizontal bar are installed On the guide rail, the driving mechanism drives the first horizontal bar to slide along the guide rail, the first horizontal bar and the second horizontal bar are movably connected, and the second horizontal bar is provided with a punch opposite to the working table.

A cylinder and an inductive switch are arranged on the table opposite to the second horizontal bar. The driving mechanism, the induction switch and the cylinder are electrically connected to the control box, and the control box controls the driving mechanism to operate.

The cylinder is provided with a push rod opposite to the second horizontal bar. The sensing switch detects that the second horizontal bar passes and sends an electric signal to the control box, and the control box receives the electric signal and controls the cylinder to drive the push rod to rise after the preset delay.

In one of the embodiments, the drive mechanism includes a motor and a wire, and the motor is coupled to the first bar by a wire, the motor being fixed to the frame and located at an end of the rail away from the table.

In one of the embodiments, an end of the first bar adjacent to the second bar is provided with an electronic switch, and the second bar is provided with a latch corresponding to the electronic switch.

In one of the embodiments, one end of the first bar adjacent to the second bar is provided with a barb, and the second bar is provided with a pin corresponding to the barb.

In one of the embodiments, the table is provided with a speed measuring mechanism, and the speed measuring mechanism is connected to the control box.

In one of the embodiments, a cushion is provided on one end of the second bar toward the push rod.

In the above safety shoe impact testing machine, the driving mechanism drives the first horizontal bar to slide along the guide rail, and the second horizontal bar is provided with a hammer and is movably connected with the first horizontal bar, and the second horizontal bar is moved on the first horizontal bar during the test. Down, is fixed at a certain height. When the second horizontal bar is separated from the first horizontal bar, the hammer freely falls and strikes the test fixed on the workbench, and the sensing switch detects the second horizontal bar, sends an electric signal to the control box, and the control box is preset. After the delay, the cylinder is opened, and the cylinder drive push rod is pushed up, so that the second falling second bar is pressed against the hammer, and the hammer cannot perform secondary impact on the sample.

DRAWINGS

1 is a schematic structural view of a safety shoe impact testing machine according to an embodiment;

2 is a schematic structural view of another perspective view of the safety shoe impact testing machine shown in FIG. 1;

The meaning of each label in the drawing is:

10- Safety shoe impact testing machine;

110- rack, 111-base, 112-support column;

120- workbench, 121-cylinder, 122-inductive switch, 123-push rod, 124-speed measuring mechanism;

130-guide;

140- drive mechanism, 141-steel wire;

150- first horizontal bar, 151-electronic switch, 152-barb;

160- Second horizontal bar, 161-rush, 162-lock, 163-cushion, 164-bolt.

Detailed ways

In order to further understand the features, technical means, and specific objects and functions of the present invention, the advantages and spirits of the present invention will be further understood. .

Referring to Figures 1-2, there are respectively schematic views of the structure of the safety shoe impact testing machine 10 of an embodiment from different perspectives. 2 is a side view of the safety shoe impact testing machine 10 shown in FIG. 1. In order to more clearly show the structure, the schematic removes one of the guide rails 130.

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