JPH0323558Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bending test device for testing the adhesion strength of a coating on a plate-like body having a coating, such as a coated steel plate.

[Conventional technology]

Conventionally, in order to test the adhesion strength of the coating on plated steel sheets, a sample piece was placed on the lower die, a weight with a certain weight was dropped from a certain height on the upper die placed on top of it, and then bent. This is then reversed and the flat-bottomed weight is dropped again from a certain height, and this is repeated to observe the peeling state of the film.

[Problems that the invention aims to solve] However, all the work for the above tests is done manually, which results in low work efficiency, delays in checking the quality of manufactured steel sheets, and safety issues. Since the sample pieces and weights are set by workers, there are drawbacks such as variations in measurement results due to human factors.

The problem to be solved in the present invention is to obtain a device that can automate work that was previously performed manually to improve work efficiency, and further eliminate human-induced variations in test results.

[Means to solve the problem]

The repeated bending test device of the present invention consists of a stocker for stacking and preparing multiple specimens, a bending mechanism for applying bending deformation to the specimen, and a mechanism for returning the specimen once bent by the bending mechanism to a flat state. a bending section consisting of a flat forming mechanism;
This system consists of a dispensing section for dispensing specimens that have been repeatedly bent in the same bending section, and a transfer mechanism equipped with a vacuum pad device for transferring the specimens to each section, thereby solving the above problems. This has been achieved.

〔Example〕

Hereinafter, the features of the repeated bending test apparatus of the present invention will be explained based on examples with reference to the drawings.

FIG. 1 is a perspective view showing the overall configuration of the testing apparatus of the present invention.

Referring to the figure, the test apparatus 10 includes a sample stocker 1, a bending section 2 for repeatedly bending the sample, a sample payout section 3, and a sample S.
The transfer mechanism 4 is configured to transfer the components to the respective sections 1, 2, and 3, and each of these sections and mechanisms are mounted and mounted on a single frame 5. Reference numeral 6 indicates an operation panel connected to a control mechanism (not shown) for automatically operating the mechanisms of each of these parts.

The sample stocker 1 consists of a rack 12 that moves up and down along guides 11 provided on both sides, and several dozen sample pieces S are prepared therein. Reference numeral 13 indicates a front plate for organizing the sample pieces S.

The bending section 2 also includes a bending mechanism 21 for applying bending deformation to the sample piece, and a flat forming mechanism 22 for returning the sample piece S, which has been bent by the bending mechanism 21, to a flat state. .

The bending mechanism 21 includes a casing 211 located approximately at the center of the frame 5 and formed into a vertically elongated shape as a whole.
The lower mold 212 set at the bottom of the inside, and the lower mold 2
Upper mold 213 to be placed on 12 with sample piece S interposed therebetween
A weight 214 that falls onto the mold 213 is stored therein. The lower mold 212 is a separate mold that can be adjusted according to the shape of the protrusion of the upper mold 213.

The upper mold 213 has a U-shaped lower end that protrudes in order to bend the specimen S placed on the lower mold 212 with a constant curvature, and the support piece 215 supports the central part of the casing 211. It has a structure that allows it to be slidably held, move up and down freely, and lock and rotate at the upper position. In addition, the weight 214 falls onto the upper die 213 placed on the sample piece S and applies a bending impact to the sample piece S. Guide holes 216 and 2 are bored on both sides of the weight 214.
Ceiling frame 218 inserted into 16 and support piece 21
It is configured such that it rises along guide rods 217, 217 provided between 5 and 5, is locked in an upper position, and can fall when the locked state is released.

The flat-forming mechanism 22 has a similar casing 219 with a ceiling frame 218 in common with the bend-forming mechanism 21, in which:
A lower stand 220 with a flat upper surface, an upper mold 221 with a flat lower surface and movable up and down, and the bending forming part 2
The weight 22 falls onto the upper die 221 in the same way as in 1.
It stores 2. Furthermore, the lower stand 220 and the upper mold 2
A pin 3103 that can be raised and lowered and moved back and forth between 21 and 21
has been established.

The sample piece dispensing section 3 organizes and dispenses the sample pieces S that have been repeatedly bent in the bending section 2, and has a reversing transfer mechanism for delivering them to the dispensing stocker 34. The mechanism includes a reversing device 32 having a pair of hanger pins 321 on the front thereof, a delivery cylinder 323, and a transfer table 3.
3, a stock cylinder 36, etc.

Further, the transfer mechanism 4 includes a swing cylinder 44 fixed on a plate 43 that moves up and down by an elevating cylinder 411 provided on a piston mount 41 of a rodless cylinder 42 arranged on the front surface of the frame 5, and a swing cylinder 44 fixed on a plate 43 that moves up and down. An attached shaft 45 that can move forward and backward and rotate freely,
A pair of vacuum pad devices 4 are attached to the tip of the shaft 45 so that the horizontal surface serves as a suction surface.
6. As a result, the sample pieces S stored in the stocker 1 are repeatedly bent one by one.
The bending section 21 of the bending section 2 is transferred to
It has a function of reciprocating while being reversed between the bending section 21 and the flat forming section 22, and finally transporting the processed sample S from the bending section 21 to the sample discharging section 3.

FIG. 2 is a view of the entire perspective view shown in FIG.
The mechanism is shown partially in cross section.

In FIG. 2, reference numeral 223 denotes a bending portion of the sample piece S that has been bent by the bending mechanism 21 shown in FIG. It is a pin cylinder of pin 3103 for receiving and suspending the vacuum pad device 46, and the pin 3
103 to the back plate 218 of the casing 219
0, and is placed on the lower stand 220 or fixed to a cylinder 224 so as to be movable up and down depending on the size of the sample piece S.

Reference numeral 225 is a cylinder for vertically moving the upper bending die 213 shown in FIG. Bending lower mold 212
The structure is such that the upper mold 213 is kept in standby above until the sample piece S is placed thereon, and then lowered to a position where the support plate 2251 is not subjected to a fall impact after being placed. Similarly, 227 is the flat upper mold 221 shown in FIG.
A locking member 228 attached to the rear of the mold 221 is locked by its support plate 2271, and the sample piece S is placed on the lower stand 220 shown in FIG. The flat upper mold 221 is kept in standby above until it is placed, and after it is placed, the pin 3103 of the pin cylinder 223 is moved back, and the support plate 2271 is lowered to a position where it will not receive a fall impact.

Reference numerals 229 and 329 are attachment and detachment locking devices for the respective weights 214 and 222 shown in FIG.
The weight 214 is moved by the cylinders 3291, 2291 provided on the elevating plate 330 that moves up and down along the guide rod 3301 provided between the locking members 226, 228 of 21 and the lower limit plate 3302 provided at a position that does not interfere with the weight 214. , 222, which supports a rod that can move forward and backward into the horizontal hole provided in the rod holder 329.
3,2293.

Lifting plate 33 to which attaching/detaching devices 229, 329 are fixed
The wire 230 attached to the weight 2 is wound up by the winding device 231, and
22 at a predetermined height.

Further, numeral 35 indicates a rodless cylinder for driving the transfer table 33 that transfers the payout sample piece S in a horizontal state, and 36 indicates a rodless cylinder for pushing the sample piece S on the transfer table 33 to the payout stocker 34. It is a stock cylinder.

Note that the reference numeral 31 in the figure is a stopper in the front row of the sample piece S.

The operating state of the test apparatus of the present invention having the above configuration will be explained below.

First, as a preparatory work, several dozen sample pieces S are stacked and placed on the rack 12 of the stocker 1, as shown in FIG. At the same time, the upper die 213 for bending and the upper die 221 for flat are attached to the respective cylinders 225,
At the same time, the weights 214 and 222 are locked to the weight attachment/detachment locking devices 229, 329, and are raised by the hoisting device 231 and placed in the standby position. Further, the swing cylinder 44 is operated to advance the shaft 45, and the vacuum pad device 46 is moved forward.
Place it on the upper center of rack 12 of stocker 1.

Next, the rack 12 is raised to position the uppermost specimen S stored in the stocker 1 at a predetermined location. At this position, after the vacuum pad device 46 on the rack 12 adsorbs the sample piece S on the uppermost stage in the rack 12, the elevating cylinder 4
11 is raised and the lifting shaft 45 is retracted, the rodless cylinder 42 is operated to transfer the mold into the bending mechanism 21 and place it on the lower mold 212.

Next, the cylinder 225 is lowered, and after placing the upper die 213 on the sample piece S, the cylinder 225 is lowered.
25 to the lower limit. Next, the bending weight 214 is released and dropped onto the upper mold 213, and the sample piece S placed on the lower mold 212 is
Transform into a U-shape.

Sample piece S processed by bending mechanism 21
actuates the vacuum pad device 46 of the transfer mechanism 4, moves the shaft 45 backward by the swing cylinder 44 after suction, and then moves the pin 3 above the lower base 220 of the flat forming mechanism 22, which has been reversed 180 degrees.
103, and after exiting, the cylinder 224 is lowered and placed. After the cylinder 227 is operated and lowered until the flat molding upper mold 221 contacts the upper surface of the sample piece S, the cylinder 227 is lowered to the lower limit and the pin 3103 is moved back.
Next, the weight 222 is released from the locking mechanism 329 and dropped onto the flat molding upper mold 221.

After returning the bent sample piece S to a flat state, it is returned to the bending mechanism 21 by the vacuum pad device 46, and after the sample piece S is bent by the same process as described above, the sample piece S is bent again. A flat forming mechanism 22 performs flat processing. In this way, the sample piece S is subjected to repeated bending processes and transferred to the payout section 3 by the vacuum pad device 46, thereby completing a series of repeated bending tests.

The sample piece S transferred from the bending mechanism 21 to the delivery section 3 is transferred to the shaft 4 of the swing cylinder 44.
5 is advanced toward the reversing device 32, the elevating cylinder 411 is lowered and supported by the hanger pin 321, and then the vacuum pad device 46 is withdrawn.

Further, after reversing the reversing device 32, the tip of the bent portion of the sample piece S is pushed out to the transfer table 33 by the delivery cylinder 323, and then the rodless cylinder 35 is operated to remove the transfer table 33 and move it to the stocker. Transfer to Section 34.

Next, the stock cylinder 36 is operated to push out the sample piece S from the transfer table 33 to the payout stocker 34.

By repeating the above process, the payout stocker 3
After 4 is full, it is taken out and transported to the next process.

Note that the operation of the test apparatus of the present invention is performed based on a program recorded in advance in the control device, and complete automation can be achieved.

[Effect of idea]

By using the apparatus of the present invention, it is possible to automatically measure the adhesion strength of a coating on a coated plate-shaped sample piece under preset conditions. Therefore, the present invention not only improves productivity through automation, but also eliminates human-induced variations, allowing for accurate detection of product characteristics and accurate adjustment of product quality.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of the repeated bending test apparatus of the present invention, and FIG. 2 is a view of FIG. 1 viewed from the back. 1: Sample piece stocker, 2: Bending section, 3:
Dispensing unit, 4: Transfer mechanism, 5: Frame, 6: Control panel, 10: Test device of the present invention, 11: Guide,
12: Rack, 13: Front plate, 21: Bending forming mechanism, 22: Flat forming mechanism, 41: Piston mount, 42: Rodless cylinder, 43: Plate, 44: Swing cylinder, 45: Shaft, 46: Vacuum pad device, 211: Casing, 212: Lower mold, 213: Upper mold, 21
4: Weight, 215: Support piece, 216: Guide hole, 217: Guide rod, 218: Ceiling frame,
219: Casing for flat molding mechanism, 22
0: Lower stand for flat forming mechanism, 221: Upper mold for flat forming mechanism, 222: Weight for flat forming mechanism.

Claims (1)

[Scope of utility model registration request] Stotzker 1 prepares stacking of multiple sample pieces
, a bending unit 2 consisting of a bending mechanism 21 for applying bending deformation to the sample piece, and a flat forming mechanism 22 for returning the sample piece S once bent by the bending mechanism 21 to a flat state; A dispensing section 3 for dispensing the sample piece that has been repeatedly bent in the bending section 2;
3. A bending test device comprising: a transfer mechanism 4 equipped with a vacuum pad device 46 for transferring the bending test device to the bending test device 3;