JPH0368837A - Abrasion testing apparatus - Google Patents

Abstract

PURPOSE:To conduct the abrasion test of test pieces accurately and quickly by combining a test-piece supplying means, a measuring means, an abrasion testing means, a powder inputting means, a cleaning means, a conveying means and a control and display means. CONSTITUTION:A supplying means 5 supplies a plurality of rubber samples 13 which are test pieces. Then, a measuring means 6 measures the weight of the sample 3. An abrasion testing means 7 holds the sample 3 on a rotary stage 4 and tests the abrasion. At the time of abrasion testing, a powder inputting means 10 inputs tungsten powder 8 into the vicinity of the sample 3. The sample which has undergone the abrasion test is cleaned with a cleaning means 11. A conveying means 12 holds the sample 3 which is received from the means 5 and conveys the sample 3 to a waste case 9 into which the waste sample 3 is discarded after the specified processing with the respective means of the means 6, the means 7 and the means 11. A control and display means 14 is linked to said means and controls the operations of the means. The results of the measurements of the means are operated in the means 14, and the result is displayed on a display function 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an abrasion testing device, for example, an abrasion testing device for testing the abrasion resistance of an elastic body, particularly a rubber sample.

(Prior Art) As a conventional wear test device, for example, there is a pico wear tester (hereinafter simply referred to as a tester). This testing machine consists of a horizontal circular rotary table and two vertical and parallel plates that are pressed against the upper plane of a disk-shaped specimen held on the rotary table with a constant load. It has a blade body. In the wear test, first, a test piece is manually taken out from a storage box or the like in which a plurality of test pieces are stored, its weight is measured using a balance, etc., and the test piece is fixed on a rotary table. Next, a constant vertical load is applied to the blade so that the blade is pressed against the test piece, and the dusting powder is manually dropped near the test piece using a spoon or the like. The rotary table is rotated in two directions, forward and reverse, at a constant rotation speed at regular intervals to perform an abrasion test on the two flat surfaces of the test piece. After the abrasion test, the test piece is manually removed from the test machine, the abrasion particles and dusting powder adhering to the test piece are removed with a brush, etc., and the test piece is cleaned thoroughly, and the weight of the test piece is weighed again using a balance.

Weight before and after wear test! Calculate the amount of wear on the test piece due to wear from the d difference. If there are many test pieces, repeat these operations manually.

(Problem to be solved by the invention) However, during an abrasion test, all the steps such as attaching and removing the test piece to the tester, cleaning after the abrasion test, and weighing with a balance are necessary. It is carried out manually, and all of the processes such as determining the measurement results, organizing the measurement data, and tabulating them are also carried out manually. Recently, the rubber samples to be tested for wear have become made of a wide variety of materials, and the number of test pieces for each type has increased. The problem is that it takes an extremely large number of people and man-hours to implement.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an abrasion test device that can quickly and accurately perform an abrasion test on a test piece without manual intervention, and can organize test result data accurately, quickly, and automatically. shall be.

(Means for Solving the Problems) The wear test device according to the present invention applies a constant load to two plate-shaped blades arranged vertically and parallel to a disk-shaped specimen placed almost horizontally. In an abrasion testing device that tests the wear of a test piece by pressing it against a test piece and rotating the test piece in two directions, forward and backward, at a constant rotational speed for a certain period of time, a supply that stores and supplies multiple test pieces. a measuring means for weighing the test piece before and after the abrasion test; a wear test means for holding and abrasion testing the test piece; and a powder for introducing dusting powder into the vicinity of the test piece to be abrasion tested. After the test piece supplied from the feeding means, the abrasion testing means and the cleaning means is subjected to the prescribed treatment by each of the measuring means, the abrasion testing means and the cleaning means. , a liquid feeding means for transporting the liquid until it is discarded, and a control for controlling each of the aforementioned means to operate in a predetermined order until all the test pieces stored in the supplying means are completed, as well as calculating and displaying the measurement results of the measuring means. It is characterized by comprising a display means.

Moreover, it is preferable that the powder charging means has a measuring mechanism for measuring a certain amount of gestating powder. Further, it is preferable that the □ feeding means has a non-adhesive member that is non-adhesive to the test piece at a contact portion that contacts the test piece of a gripping mechanism that grips the test piece. Further, the abrasion testing means has a rotary table and a holding mechanism for holding the test piece, and a holding contact portion of the rotary table and the holding mechanism that contacts the test piece has a non-adhesive member that is non-adhesive to the test piece. is preferred. Also,.

It is preferable that the abrasion testing means has a scratching tool that always scrapes the dusting powder onto the worn parts of the test piece during the abrasion test of the test piece.

(Function) Since the wear test device according to the present invention has a supply means, a metering means, an abrasion test means, a powder charging means, a cleaning means, a conveyance means, and a control display means, by activating the control display means, The test piece supplied from the supply means is received by the conveyance means, conveyed to the weighing means to measure the weight of the test piece, and then conveyed to the wear testing means. Dusting powder is injected into the vicinity of the test piece by the powder injecting means, and after a predetermined abrasion test is performed by the abrasion testing means, it is cleaned by the cleaning means, and further, it is conveyed to the measuring means again by the conveying means to be weighed, and then discarded. do. The control display means calculates and displays the amount of decrease in the weight of the test piece due to the wear test from the measurement result measured by the weighing means. These steps are repeated until the wear test of all test pieces stored in the supply means is completed.

Therefore, the wear test of the test piece can be performed without manual intervention, and the data of the test results can be automatically organized without manual intervention.

(Example) Embodiments of the present invention will be described below based on the drawings.

1 to 8 are diagrams showing an embodiment of the wear testing device according to the present invention.

First, the configuration will be explained. In FIG. 1, reference numeral 1 denotes an abrasion test device, and the abrasion test device L is fixed to a frame 2 and has a flange portion, which is a test piece shown in FIG. , approximately 13 am thick)
a supply means 5 for supplying a plurality of rubber samples, a weighing means 6 for measuring the weight of the rubber sample 3, an abrasion test means 7 for holding the rubber sample 3 on a rotary table 4 and performing an abrasion test; , a cleaning means 11 for cleaning the rubber sample 3 subjected to the abrasion test, a measuring means 6 for gripping the rubber sample 3 received from the supply means 5; After carrying out predetermined processing by the abrasion test means 7 and the cleaning means 11, the rubber sample 3 is transported until it is disposed of in the disposal box 9 at the bottom, and the transport means 12 is connected to each of these means and is connected to each means. Control and display means 14 that controls the operation and has a display function 13
It has As shown in FIG. 4, each of these means rotates the supply means 5 toward the supply means on the right side of the figure, centering on the rotation center C of the conveyance means 12, and toward the measuring means turned left at an angle of 90 degrees from the supply means 5. Wear test means 7 rotates the measuring means 6 in the wear test direction, which is further rotated 90 degrees to the left from the measuring means 6.
It is arranged. The conveyance means 12 is movable in the upper and lower directions, and is approximately horizontal at an angle of about 18 mm about the rotation center C.
0' It has a rotatable transfer hand 15. The transport hand 15 transfers the rubber sample 3 using the hand 15a at the tip.
The hand 15a shown in FIG. 3 expands and contracts from the most contracted standby position G and standby height H, and rises and falls in the vertical direction.

The transport hand 15 transports the sample 3 from the supply means 5 to the measuring means 6, the abrasion test means 7, the cleaning means 11, and to disposal.

The cleaning means 11 is a powder suction machine 7 shown in FIG.
3 and a sample surface cleaning machine 83 shown in FIG.

In FIG. 1.2, the supply means 5 has a columnar magazine 17 consisting of five columns arranged on the circumference on the frame 2, and various rubber samples 3 are placed in the magazine 17 in a predetermined manner. Up to 99 items are stacked and stored in this order. 18 is a sample holding plate, and the sample holding plate 18 is attached to the tip of a piston in a cylinder 19 fixed to the lower part of the magazine 17.
It is inserted into the lower end of the magazine 17 to hold the rubber sample 3. Reference numeral 20 denotes a sample position adjustment table, and the sample position adjustment table 20 is provided below the magazine 17 so as to be movable up and down by a piston, and the one rubber sample 3 at the lowest position in the magazine 17 is placed in a predetermined position on the frame 2. It can be moved and adjusted to the desired position. Reference numeral 21 denotes a sample extrusion temporary, and the sample extrusion temporary 21 is connected to the magazine 17 by a piston provided on a frame.
The lower end of the rubber sample 3 in the magazine 17 is movable in the horizontal direction and is in a predetermined position on the frame 2.
It is configured to take out only one piece, push it out in the horizontal direction to a take-out position M where it can be transported by the transport means 12, and supply it to the transport means 12.

In FIG. 3.4, the conveying means 12 includes a rotary plate 26 rotatably provided around a rotation center C by a torque motor 25 attached to the frame 2, and a cylinder provided on the rotary plate 26. The rotary plate 26 has a lifting plate 28 that can be raised and lowered in the vertical direction by means of a rotating plate 27.The rotary plate 26 has a stop bar plate 26a at the peripheral end, and a shock absorber for accurately setting the stop position during rotation. The stop position is maintained by the rotating torque of the torque motor 25 by applying the stopper 26c to the attached stopper 26c.The absorber equipped absorber 26C has one each in the direction of the supply means and the wear test means, and one in the direction of the measuring means when turning left and one when turning right. A telescopic transport hand 15 is provided on an elevating plate 28 which is moved up and down by a cylinder 26d attached to each.Transfer hand 1
5 is a piston 29A that is horizontally movable within the cylinder 29 and expands and contracts the transport hand 5 in the horizontal direction, and a gripping mechanism that is attached to the tip of the piston 29A and grips the rubber sample 3 with the tip of the transport hand 15. It has a certain hand 15a. The hand 15a has two approximately parallel gripping rods 15b for gripping the rubber sample 3, and a link mechanism connected to a piston 30A of a hand opening/closing cylinder 30 that opens and closes the gripping rods 15b. The rubber sample 3 can be gripped and released.

The contact portion 15c of the gripping rod 15b that contacts the rubber sample 3 of the hand 15a is coated with a rubber member and a non-adhesive sheet 15d, such as Japanese paper, so that the contact portion 15c does not touch the rubber sample 3 during operation. It is designed to prevent the parts from sticking and stopping operation.

31 is a telescopic guide rod, and the telescopic guide rod 31 is a guide when the piston 29A of the transport hand 15 is protruded and the transport hand 15 is extended.

In FIG. 3, the weighing means 6 has a balance 24 placed horizontally on a surface plate 23 fixed to a frame 2. A rubber sample 3 is placed on a balance pan 24A on the upper part of the balance 24, and the weight is measured. Weigh.

In FIGS. 4 and 5, the wear test means 7 includes a sample holder 7A that presses and holds the rubber sample 3 on the rotary table 4 from the side, and a sample holder 7A that presses and holds the rubber sample 3 onto the rotary table 4 from above. A sample holder 7B, a table rotation mechanism 7C that rotates the rotary table 4, and a load loading device 7D that applies a load to a blade 53, which will be described later, on the rubber sample 3.

In FIG. 4, 7A is a sample holding device, and the sample holding device 7A includes a temporary presser 33 that presses the flange portion 3a of the rubber sample 3 conveyed onto the rotary table 4 by the conveying means 12 from the left and right sides, and a presser plate. A pair of shafts 34 each having a shaft 33 fixed to the distal end and movable horizontally along the guide cylinder 32 to the side of the rotary table 4, and a cylinder 35 extending and contracting via a plate 34A connecting the shafts 34. have. By the operation of the cylinder 35, the temporary presser foot 33 is moved from a packing machine position (not shown) so as to press the rubber sample 3 from the side at the same time.

In FIG. 5(a), 7B is a sample holder, the sample holder 7B is a holding mechanism, and the rubber sample 3 on the rotating table 4 is
a cylindrical sample holder 36 that holds and fixes the rubber sample 3 on the rotary table 4 by pressing the peripheral part from above to below; a support 37 that supports the sample holder 36 via a bearing;
The shaft 39 is fixed to the peripheral end of the support 37 and connected to the cylinder 38 so as to be slidable in the vertical direction along a guide attached to the frame 2.

In FIG. 5(b), a rotary table 4 holding a rubber sample 3
The upper surface 4a of the sample holder 36 and the stepped portion 36a of the sample holder 36 that contact the rubber sample 3 are made of a non-adhesive member having non-adhesive properties at the contact portion that contacts the rubber sample 3. IE
40A and foam rubber 40B are coated. This prevents the rubber sample 3 from becoming soft due to heat generation or other factors during the wear test and from sticking to the rotary table 4 or the sample holder 36.

In FIG. 5(c), 41 is a powder scraping tool, and the powder scraping tool 41 is a holding portion 46a at the lower end of the shaft 46.
It is fixed with 2flI bolts to the outside of the blade body 53 and has a plate-shaped lower part, so that the dusting powder 8 in the sample holder 36 is scraped up near the blade body 53 as the rotary table 4 rotates. being done. Therefore, the surface of the rubber sample 30 is uniformly abraded by the blade 53, and a highly accurate abrasion test can be performed.

In FIG. 5(a), 7C is a table rotation mechanism, and the table rotation mechanism 70 is powered by a motor 42 mounted on the frame 2 and a speed reducer 43 connected to the motor 42. The rotary table 4 can be rotated in two directions, forward and reverse, at a predetermined number of rotations at a predetermined time interval by operating according to a command from the control display means.

7D is a load-bearing machine, and the load-bearing machine 7D is a rotary table 4.
A load-bearing shaft 46 that is vertically supported by two upper and lower sub-arms 45 and a support sleeve 44 in the horizontal direction and applies a load to the rubber sample 3, and the upper and lower sub-arms 4
A piston 50 that expands and contracts vertically by a connecting rod 47 that vertically connects the pistons 5 to 5 and a cylinder 49 fixed to a wall surface 48.
The upper and lower main arms 5 each have a support tube portion 51a that connects the support sleeve 44 and the support sleeve 44, and has a support tube portion 51a at the end through which the connecting rod 47 passes loosely.
1.

The main arm 51 and the sub-arm 45 are provided at a distance of about 10 degrees in the vertical direction, and when the piston 50 is extended by the operation of the cylinder 49, the main arm 51 moves from the standby position Q shown in FIG.
is lowered, and the sub arm 45 that engages with the main arm 51 via the support tube portion 51a moves together with the load bearing arm 46 into the fifth
The load position is lowered to the load position shown in Figure (a). The load bearing shaft 46 has two shafts arranged perpendicularly and parallel to both sides of the center axis of the rubber sample 3 on the rotary table 4 at the lower end.
A support flange portion 46 that has a holding portion 46a that holds a plate-shaped blade 53 and supports an annular weight 54 at its upper end.
It has b.

A weight holder 55 that moves horizontally and holds the weight 54 at its tip is provided near the weight 54, and the applied load can be changed by maintaining or releasing the weight 54 as necessary.

In FIG. 6, the powder charging means 10 is the sample holder 7.
A conical powder container 6 is fixed to a sub frame 60 provided near B, stores dusting powder 8, and has a booth hole 61a at the lower end for dropping the dusting powder 8.
1 and is provided below the powder container 61, and the powder container 6
A measuring mechanism 63 having two recesses 62 capable of storing a certain amount of dusting powder 8 falling from the dusting powder 8 is provided. A powder dropping tool 67 is provided in the powder container 61 and has a lever 66 whose lower end moves up and down in the vicinity of the recess 62 so that the dusting powder 8 falls uniformly from the small opening 61a into the recess 62. The measuring mechanism 63 has a disc-shaped measuring body 64 that can be rotated by a rotating means such as a motor provided above the center, and a case 65 that holds the measuring body 64. They are provided diagonally at an angle of 180'' on the circumference at the periphery.

The measuring body 64 is rotated through an angle of 180' by a motor, so that the recess 62 containing a certain amount of dusting powder 8 is aligned with the outlet 68 provided in the case 65. An air vibro 9 for blowing out air is provided above the outlet 68. A cylindrical drop nozzle 70 is provided below the outlet 68. Falling nozzle 7
0 is moved horizontally from the standby position P by the cylinder 71,
When the upper end of the drop nozzle 70 coincides with the take-out port 68, the lower end is located near the opening of the sample holder 36 of the sample holder 7B.

In FIG. 7, 73 is a powder suction machine, and the rotary table 4
It is attached on the frame 80A near the frame 80A. The powder suction device 73 has a cylindrical nozzle 74, a rotating brush 75 held within the nozzle 74, and a hose 76 connected to the upper part of the nozzle 74 and connected to a dust collector (not shown). The rotating brush 75 has a brush 75A attached to its lower part and a boob connected to the motor 81 at its upper part.

The nozzle 74 is attached to the tip of the horizontal shaft 77,
It is movable in the horizontal direction by actuation of a horizontal cylinder 79 horizontally attached to a horizontal frame 78 that supports a horizontal shaft 77 . The upper and lower cylinders 80 are the frame 80
A, and the tip of the shaft inside the cylinder 80 is fixed to the horizontal frame 78. horizontal cylinder 79
By operating the upper and lower cylinders 80, the tip 74a of the nozzle 74 can be inserted into the sample holder 36 from the standby position R. By operating the dust collector and motor 81, the brush 75A can be rotated on the rubber sample 3 and suctioned to remove the abrasion powder and dusting powder 8 in the sample holder 36.

In FIG. 8, 83 is a sample surface cleaning machine, and the sample surface cleaning machine 83 is provided near the sample holder 7B, and is vertically separated and rotates together with the brushes inwardly around a vertical axis E. It supports two possible rotating brushes 85 and two upper and lower rotating brushes 85, connects the upper and lower, and is connected to a suction port that sucks abrasion powder and dusting powder 8 adhering to the rubber sample 3 between the rotating brushes 85. and a support case 86 having a lumen therethrough. The rotating brush 85 is connected to a motor 88 via a pair of gears 87 provided on the axis E. The support case 86 is
A support case 86 is fixed to the tip of a horizontally movable shaft 89. Holder 90 supporting shaft 89
is rotatable upward about one end 90a as a fulcrum, and is normally located at an upper standby position S, where the sample surface cleaning machine 83
is made so that it does not come into contact with the conveyance means 12. The rotating brush 85 can grip the rubber sample 3 from above and below by operating a cylinder 91 that moves the shaft 89 and a cylinder 92 that moves the holder 90 up and down. The inner cavity of the support case 86 communicates with a dust collector (not shown) via a dust collection vibrator.

In FIG. 1, the control display means 14 has a control function 93, an arithmetic function 94, and a memory function 96 for storing human input from an operation panel 95. The control function 93 is the supply means 5,
It is connected to the measuring means 6, the abrasion testing means 7, the powder feeding means 10, the cleaning means 11, and the conveying means 12, so that these operations operate in a predetermined order according to conditions inputted in advance through the operation panel 95, that is, according to a program. Control. The calculation function 94 performs calculations according to a predetermined procedure based on the measurement results obtained by the measurement means 6, and the storage function 96 stores the test conditions of the wear test, such as the rotation speed, applied load, test time, type and number of rubber samples, etc. is stored manually from the operation panel 95.

By operating the start button on the operation panel 95, each means is operated based on a predetermined program, data is retrieved from the memory function 96 as needed, and the calculation function 94 is activated.
The calculated result is then displayed on the display function 13.

Next, the effect will be explained.

First, test conditions to be performed are input into the control display means 14 from the operation panel 95. The rubber sample 3 is stored in the magazine 17 of the supply means 5 in accordance with the test conditions set manually. Operation panel 95
When you press the start button of Therefore, all these means are operated by the control display means 14 based on a predetermined program, and the wear test is performed until the wear test of all the rubber samples 3 in the magazine 17 is completed, and the predetermined display is displayed. Display by function 13 and step n7. Therefore, the wear test of all the rubber samples 3 in the magazine 17 can be carried out continuously, accurately and efficiently without manual intervention.

This will be explained in more detail below.

In FIG. 1.2, when the start button on the operation panel 95 in the control display means 14 is pressed, the sample position adjustment table 20 of the supply means 5 rises until it touches the bottom surface of the lowest rubber sample 3 in the magazine 17. The cylinder 19 operates to pull out the sample holding plate 18 from the lower end of the magazine 17, and when the sample position adjustment table 20 has descended to the height of one rubber sample 3, it is inserted into the magazine 17 again. The sample position adjustment table 20 takes out the lowest 1 (solid rubber sample 3), descends, and moves to a predetermined position on the frame 2. Sample extrusion Fi
21 moves horizontally to the left in the figure, and moves the rubber sample 3 from a predetermined position to a take-out position M. When the rubber sample 3 moves to the take-out position M, the transport hand 15 of the transport means 12 is located at the standby height 11 and the standby position G,
direction (opposite to the direction of the conveying means 12 in Fig. 1.4), the cylinder 29 of the conveying means 12 is activated, the conveying hand 15 is extended, the cylinder 27 is activated, and the conveying hand 15 is It descends to the same height as the extraction position M. Next, the hand opening/closing cylinder 30 operates to open and close the gripping rod 15b to grip the rubber sample 3 at the take-out position M. When the hand 15a grips the rubber sample 3, the cylinder 27 is actuated to raise the printing hand 15 to the standby height H, and the cylinder 29 is actuated to retract the conveyance hand 15 and return to the standby position G. Next, the torque morph 25 is activated, and the conveying hand 15 is rotated through an angle of about 90 degrees from the direction of the supply means to the direction of the measuring means shown in FIG. The rotation angle is shown in Fig. 3. A strike bar 26 with an absorber that stops the counterclockwise rotation direction is shown in Fig. 3.
c rises due to the action of the cylinder 26d and the stopper plate 26a
The stopping position can be determined with high accuracy.

In FIG. 3, after the cylinder 29 is activated again and the transfer hand 15 is extended, the cylinder 27 is activated and the balance plate 24 is
Descend to the same height as A. The hand opening/closing cylinder 30 is operated to open the gripping rod 15b, and the rubber sample 3 is placed on the balance pan 24.
Put it on A. The transport hand 15 rises to the standby height H. When the rubber sample 3 is placed on the balance plate 24A, the balance 24 starts weighing, and the weight after 5 seconds is used as a signal to control and display means 1.
Send to 4. This signal is stored in the storage function 96 of the control display means 14.
takes in.

When the memory function 96 takes in the weight, the cylinder 27 is actuated, the transport hand I5 descends again to the same height as the balance pan 24A, the gripping rod 15b closes, and the rubber sample 3 is gripped.

When the gripping rod 15b grips the rubber sample 3, the cylinder 27
is actuated, the transfer hand 15 rises to the standby height H, the cylinder 29 is actuated, the transfer hand 15 is retracted, and returns to the standby position G. Next, the lifting bar 26c is lowered, the motor 25 is activated, and the conveyance means 12 is rotated by an angle of 906 from the direction of the measuring means to the direction of the wear test means, that is, the direction of the rotary table 4 of the sample holder 7A. .

The transfer hand 15 is extended by the operation of the cylinder 29, and then lowered to the same height as the surface of the rotary table 4 by the operation of the cylinder 27.

When the rubber sample 3 reaches the position of the rotating table 4, the sample holding device 7A
The cylinder 35 is operated, the pair of shafts 34 are extended, the pair of presser plates 33 are moved from the standby position J to the rotating table 4 side, and the tip of the presser plate 33 is used to press the flange portion 3a of the rubber sample 3 from the side. The rubber sample 3 is held on the rotary table 4 by pressing. When the rubber sample 3 is held on the rotary table 4, the hand opening/closing cylinder 30 is activated to move the transport hand 15 to the gripping bar 15.
b, and after rising to the standby height H, returns to the standby position G.

In FIG. 5(a), when the transfer hand 15 returns to the standby position G, the cylinder 38 of the sample holder 7B is activated, the support body 37 is lowered from above the rotary table 4, and the sample holder 36
The surrounding area of rubber sample 3 was covered with Japanese paper 40A and foam rubber 40A.
The rubber sample 3 is fixed between the rotary table 4 and the sample holder 36 by pressing through B. The cylinder 35 of the sample holding device 7A is operated, and the holding plate 33 moves to both the left and right sides of the rubber sample 3 and returns to the standby position J.

In FIG. 6, the rubber sample 3 is placed between the rotary table 4 and the sample holder 3.
6, the lever 66 in the powder container 61 of the powder charging means 10 moves up and down by approximately If)0, and the dusting powder 8 in the powder container 61 is transferred into the recess 62 in the measuring body 64. Make sure to fill it evenly.

When a certain amount of dusting powder 8 is measured in the recess 62, the measuring body 64 is rotated by 180 degrees until the recess 62 matches the drop opening of the case 65, and the drop nozzle 70 is dropped by the operation of the cylinder 71. The upper end of the falling nozzle 7o from the standby position P of the nozzle 70 is connected to the powder outlet 6
Move until it matches 8. When the upper end of the falling nozzle 70 coincides with the powder outlet 68, air blowing from the air vibro 9 starts, and a certain amount of dusting powder 8 in the recess 62 passes through the powder outlet 68 and the falling nozzle 70 to the opening on the sample holder 36. It is dropped near the rubber sample 3 in the sample holder 36. dusting powder 8
When the drop nozzle 70 falls into the sample holder 36, the dropping nozzle 70 returns to the standby position P.

In FIG. 5, when the drop nozzle 70 returns to the standby position P, the cylinder 49 of the load-bearing machine 7D operates, and the piston 5
0 extends, and the load bearing shaft 46 moves from the standby position Q of the load bearing shaft 46 shown in FIG.
The cutting edge of the blade body 53 held by the holding portion 46a of No. 6 comes into contact with the rubber sample 3, and the main arm 51 further moves until it descends approximately 10 mm downward, and the applied load is applied to the rubber sample 3. Next, the motor 42 of the table rotation mechanism 7C is activated, and the rotary table 4 rotates forward or backward a predetermined number of times (in this example, 2
times) Repeat the abrasion test of the rubber sample 3 under a certain amount of dusting powder 8. During this wear test, the surface portion of the rubber sample 30 is worn away by the cutting edge of the blade body 53 to form a worn portion. The powder scraping tool 41 is attached to the blade body 53 and the rotary table rotates. Since a certain amount of dusting powder 8 is always scraped up from the bottom of the sample holder 36 so that it is always on the worn part of the rubber sample 3, the worn part of the rubber sample 3 is always subjected to negative wear due to the fixed amount of dusting powder 8. This allows highly accurate wear tests to be carried out.

In FIG. 7, when the wear test of rubber sample 3 is completed,
The cylinder 49 is actuated and the load bearing shaft 46 rises to the standby value i9Q. Nozzle 74 of powder suction machine 73
is inserted into the sample holder 36 from the standby position R by the operation of the horizontal cylinder 79 and the upper and lower cylinders 80. The dust collector is operated to absorb the dust, and while the rotary brush 75 is rotated by the motor 81, the abrasion powder and dusting powder 8 of the rubber sample 3 in the sample holder 36 are sucked and removed to clean the two surfaces of the rubber sample 3. do.

When the top surface of the rubber sample 3 is clean and the powder suction machine 73 returns to the standby position R, the pair of holding plates 33 of the sample holding machine 7A
moves to the rotary table 4 side again in the same manner as described above, presses the flange portion 3a of the rubber sample 3 from the side, and holds it on the rotary table. When the presser plate 33 holds the rubber sample 3, the sample holder 36 rises together with the support 37 of the sample holder 7B.

Japanese paper 40A is placed on the contact part of the sample holder 36 with the rubber sample 3.
Since the foamed rubber 40B is coated, the sample holder 36 does not adhere to the rubber sample 3, and is smoothly separated from the rubber sample 3, so that no trouble occurs. The conveying hand 15 of the conveying means 12 extends again in the same manner as described above and is positioned above the rotary table 4, and then descends and the conveying hand 15 grips the rubber sample 3 on the rotary table 4. When the transport hand 15 grips the rubber sample 3, the presser plate 33 moves to both left and right sides of the rubber sample 3 and returns to the standby position J. The conveyance hand 15 returns to the standby height H in the same manner as described above, and the conveyance hand 15 contracts and returns to the standby position G.

In FIG. 8, when the transport hand 15 is retracted, the two cylinders 91 and 92 of the sample surface cleaning machine 83 are activated, and the rubber sample 3 held by the transport hand 15 is removed from the standby position S by a pair of rotating brushes 85. Move 3 between the top and bottom. The motor 88 and dust collector operate,
Abrasion powder and dusting powder 8 adhering to the upper and lower surfaces of the rubber sample 3 are absorbed and cleaned.

The rubber sample 3 is now clean and the sample surface cleaning machine 83
When it returns to the standby position S, the right-turning strike bar 26C' of the conveying hand shown in FIG. It rotates, transports the rubber sample 3 to the balance pan 24A of the measuring means 6, places it on the balance pan 24A, and then returns to the standby height H. The balance 24 takes the weight of the rubber sample 3 after 5 seconds into the recording function 96, and takes it out from the recording function 96 together with the weight of the rubber sample 3 before the abrasion test described above to calculate the amount of wear of the rubber sample 3. When the control display means 14 has finished calculating the amount of wear, the transport hand 15 transports the rubber sample 3 on the balance pan 24A to a disposal location.
After descending to a predetermined position, the rubber sample 3 is discarded into the disposal box 9 by opening the grip f, 115b.

Next, the transfer hand 15 is again extended from the standby height H and the standby position G in the same manner as described above, and the supply means 5 is activated.
Grip the next rubber sample 3 at the take-out position M. The same operation as described above is repeated again until the rubber sample 3 in the magazine 17 is finished. That is, all the rubber samples 3 in the magazine 17 were subjected to wear tests quickly and accurately without manual intervention, and without any adhesion to the rubber samples 3, and the productivity of the test was greatly improved.

(Effects) As explained above, according to claim 1 of the present invention, the wear test of the test piece can be performed quickly and accurately without manual intervention, and the data of the test results can be organized accurately and quickly. , further, the calculation results are displayed.Furthermore, according to claims 2 and 5 of the present invention, the rubber sample 3 can be worn uniformly, and the accuracy is further improved.
According to 4 and 4, it can be carried out smoothly and quickly without adhesion between the rubber sample and other members.

[Brief explanation of drawings]

1 to 8 are diagrams showing one embodiment of the wear test device according to the present invention, in which FIG. 1 is an overall schematic diagram thereof, FIG. 2 is an enlarged partial sectional view of its supply means, and FIG. FIG. 4 is an enlarged side view of the weighing means and conveyance means, FIG. 4 is a plan view of the sample holder and conveyance means of the abrasion test means, FIG. Figure (b) is an enlarged cross-sectional view of the main part of the wear test means, Figure 5 (c) is a partial cross-sectional view showing the operation of the wear test means, and Figure 6 is a partial cross-sectional side view of the powder injection means. , FIG. 7 is a partially sectional side view of the powder suction device, and FIG. 8 is a side view of the sample surface cleaning device. 1... Abrasion test device, 3... Rubber sample, 5... Supply means, 6... Measuring means, 7... Wear test Means, 7B...Sample holder (holding mechanism), 8...
... Dusting powder, 10 ... Powder input means, 11 ... Cleaning means, 14 ... Control display means, 15a ... Hand (gripping mechanism) , 15d...
...Gripping rod, 40A...Japanese paper (non-adhesive member), 40B...
... Foaming (non-adhesive member), 53 ... Blade body, 63 ... Measuring mechanism, 73 ... Powder suction machine (cleaning means),
83... Sample surface cleaning machine (cleaning means).

Claims (5)

[Claims] (1) Two plate-shaped blades arranged vertically and parallel to a disk-shaped test piece placed almost horizontally are pressed against the test piece with a constant load, and the test piece is rotated at a constant rotation speed. In an abrasion testing device that performs an abrasion test on a test piece by rotating it in two directions, forward and backward, at regular intervals, there is a supply means for storing and supplying a plurality of test pieces, and a supply means for storing and supplying a plurality of test pieces, before and after the abrasion test on the test piece. A measuring means for weighing, an abrasion test means for holding a test piece and performing an abrasion test, a powder injection means for injecting dusting powder into the vicinity of the test piece to be abrasion tested, and a cleaning means for cleaning the test piece subjected to the abrasion test. , a conveying means for transporting the test piece supplied from the supplying means until it is discarded after being processed in a predetermined manner by each of a measuring means, an abrasion testing means, and a cleaning means; and a supplying means for carrying out each of said means in a predetermined order 1. A wear testing device characterized by comprising control and display means for controlling the operation of the measuring means until all the test pieces stored therein are completed, and for calculating and displaying the measurement results of the measuring means. (2) The wear testing device according to claim 1, wherein the powder charging means has a measuring mechanism for measuring a certain amount of dusting powder. (3) The wear test according to claim 1 or 2, characterized in that the conveyance means has a non-adhesive member that is non-adhesive to the test piece at a contact portion that contacts the test piece of a gripping mechanism that grips the test piece. Device. (4) The abrasion test means has a rotary table and a holding mechanism that hold the test piece, and has a non-adhesive member that is non-adhesive to the test piece at a holding contact portion of the rotary table and the holding mechanism that contacts the test piece. The wear test device according to claim 1, 2 or 3, characterized in that: (5) Claims 1 and 2 characterized in that the abrasion test means has a scraper that always scrapes the dusting powder so that it is on the worn part of the test piece during the wear test of the test piece.
, 3 or 4.