JP4888899B2 - Test piece feeder for rebound resilience tester - Google Patents

Description

  The present invention relates to a test piece supply device for a rebound resilience tester for rubber materials and the like.

As a rebound resilience tester for rubber materials or the like, for example, Rupke rebound resilience tester is known (for example, Patent Document 1).
JP 2000-275156 A

The hitherto known rebound resilience tester such as a rubber material is provided with only one test piece holder. Therefore, the test piece was attached and removed by a human hand every time the test piece was hit by the pendulum striking end. Moreover, the test piece of this rubber material is sticky, and there is a problem that the mounting of the test piece to the test piece holder is troublesome and takes time and effort.
In view of the above-mentioned problems, the present invention provides a novel test strip supply apparatus for a rebound resilience tester that can incorporate a large number of test strips in advance and continuously supply the test strips.

  For this purpose, the test piece supply device of the rebound resilience tester according to the present invention includes a test piece holder in which a large number of test piece storage recesses for storing a large number of test pieces at intervals, and a movement fixed to the test piece holder. And a driving means for moving the test specimen holder in cooperation with the moving means, and the test specimen holder is moved at intervals of a large number of test specimen storage recesses.

  Further, in the test piece supply device of the rebound resilience tester according to the present invention, the test piece storage recesses are positioned at equal intervals, the moving means is a moving tooth mold, and the test is performed in cooperation with the moving means. The driving means for moving the piece holder is a drive gear, and the test piece holder is moved at equal intervals of a large number of test piece recesses.

  Further, the test piece supply device of the rebound resilience tester according to the present invention is such that the test piece storage recess has a diameter larger than the diameter of the test piece, and a diameter into which a presser ring for holding the test piece can enter, There is an interval between the test piece storage recess and the test piece storage recess to allow expansion of the test piece, a step portion is formed at the back of the test piece storage recess, and a test piece receiving portion formed to have a diameter that can receive the test piece is formed. It is what.

  Further, the test piece supply device of the rebound resilience tester of the present invention is provided with a protective plate immediately before the test piece holder, and a large number of small-diameter impact end passage through holes through which the impact end of the pendulum passes, A large number of large-diameter test piece passage through holes that pass through the pieces and store the test pieces in the test piece storage recesses of the test piece holder are alternately formed. The reciprocating displacement can be made by an interval from the single-passing through-hole, and the striking-end passing through-hole or the test-piece passing through-hole is made to face the test piece housing recess of the test piece holder.

  Furthermore, the test piece supply apparatus of the rebound resilience tester according to the present invention is provided with a pressing plate having a striking end passage through hole through which the striking end of the pendulum passes at a passing position of the pendulum striking end, and on the back side of the pressing plate. One or two pairs of pressing pins are provided so that the pressing plate can be pressed and released by cylinder operation, and the test piece is pressed and fixed by pressing the pressing pin at the pressing position.

Moreover, the test piece supply apparatus of the rebound resilience tester according to the present invention is configured to prevent the pendulum striking end from striking the test piece at the release position of the pressing plate.
It is preferable that a heater is provided in the specimen holder.
The test piece holder and the moving means or the protective plate may be formed in a ring shape.
The test piece holder and the moving means or the protection plate may be formed in a straight line.

  A test strip supply apparatus for a rebound resilience tester according to the present invention includes a test strip holder having a plurality of test strip storage recesses for storing a large number of test strips at intervals, and a moving means fixed to the test strip holder. The driving means for moving the test specimen holder in cooperation with the moving means, and the test specimen holder is moved at intervals of a large number of test specimen storage recesses, so that only one test specimen can be used. There is an advantage that a large number of test pieces can be manually or automatically supplied to the impact test position.

  Further, in the test piece supply device of the rebound resilience tester according to the present invention, the test piece storage recesses are positioned at equal intervals, the moving means is a moving tooth mold, and the test is performed in cooperation with the moving means. The drive means for moving the piece holder is a drive gear, and the test piece holder is moved at equal intervals of a large number of test piece recesses. Furthermore, since a tooth mold and gears are used, there is an effect that the means for moving is easy.

  Further, the test piece supply device of the rebound resilience tester according to the present invention is such that the test piece storage recess has a diameter larger than the diameter of the test piece, and a diameter into which a presser ring for holding the test piece can enter, There is an interval between the test piece storage recess and the test piece storage recess to allow expansion of the test piece, a step portion is formed at the back of the test piece storage recess, and a test piece receiving portion formed to have a diameter that can receive the test piece is formed. Therefore, when the test piece is struck by the striking end of the pendulum, even if the test piece expands, this expansion is not obstructed from the outside, and an accurate and stable rebound resilience test is performed. There is an effect that can.

  Further, the test piece supply device of the rebound resilience tester of the present invention is provided with a protective plate immediately before the test piece holder, and a large number of small-diameter impact end passage through holes through which the impact end of the pendulum passes, A large number of large-diameter test piece passage through holes that pass through the pieces and store the test pieces in the test piece storage recesses of the test piece holder are alternately formed. The reciprocating displacement can be made by the distance from the single-passing through-hole, and the striking-end passing through-hole or the test-piece passing through-hole is made to face the test-piece receiving recess of the test-piece holder. By facing the test specimen storage recess, the test specimen can be attached to and removed from the test specimen holder. By displacing the small-diameter striking end passage through hole to a position facing the test specimen storage recess, a large number of Stablely hold the specimen in the specimen holder There is an effect that can be bet.

  Furthermore, the test piece supply apparatus of the rebound resilience tester according to the present invention is provided with a pressing plate having a striking end passage through hole through which the striking end of the pendulum passes at a passing position of the pendulum striking end, and on the back side of the pressing plate. Since one or two pairs of pressing pins are projected and the pressing plate can be pressed and released by cylinder operation, and the test piece is pressed and fixed by pressing operation of the pressing pin at the pressing position. When hitting the test piece at the striking end, there is an effect that the test piece can be firmly fixed.

Further, the test piece supply device of the rebound resilience tester according to the present invention is designed to prevent the pendulum striking end from hitting the test piece at the release position of the pressing plate. It is possible to prevent the test piece from being hit by the pendulum inertia and perform the hit test on the test piece accurately and stably.
Moreover, since the heater is provided in the said test piece holder, temperature setting can be carried out as a test condition.
Furthermore, since the test piece holder and the moving tooth mold or the protection plate are formed in a ring shape, the test piece supply device can be made small.
In addition, since the test piece holder and the moving tooth mold or the protective plate are formed in a straight line, the test piece supply device can have a simple structure.

A specific embodiment of the present invention will be described based on the drawings. The drawing shows an embodiment in which a test piece holder, a moving tooth mold as a moving means, and a protective plate are formed in a ring shape.
FIG. 1 shows a rebound resilience testing machine equipped with a test strip supply device of the present invention, and FIG. 2 shows a front view of a test strip holder 1 in which a large number of test strip storage recesses 2 are formed at equal intervals.
The test strip supply apparatus of the present invention basically includes the test strip holder 1, the moving tooth mold 3 fixed to the test strip holder 1, and the test tooth holder 1 in mesh with the moving tooth mold 3. It comprises a drive gear 4 as a driving means that moves, and a protective plate 5 is provided immediately before the specimen holder 1.
In the illustrated embodiment, the moving tooth mold is used as the moving means and the driving gear 4 is used as the driving means. However, the moving means and the driving means are not limited to the tooth mold and the gear.

  As described above, the test specimen holder 1 has a large number of test specimen storage recesses 2 formed at equal intervals. In the illustrated embodiment, the test piece holder 1 is formed in a ring shape, and the 20 test piece storage recesses 2 except for the upper position are formed at 15 ° between the centers of the test piece holder 1 with the center position of the test piece holder 1 as the center. A through hole 6 is provided at the center of each test piece storage recess 2 to communicate with the rear. The test specimen holder 1 has an angle of 7.5 ° centered on the center position of the test specimen holder 1 in the lateral direction, that is, a half of an angle of 15 ° between the test specimen storage recesses 2 and 2 at the upper position. Two receiving holes 7 are provided at an angle of 5 mm. The receiving holes 7 and 7 function by inserting positioning pins that are inserted into a protective plate, which will be described later, in order to position both end positions of a slight reciprocating displacement of the protective plate, which will be described later.

As shown in FIG. 1, the specimen holder 1 is rotatably supported by receiving an inner ring on receiving rollers 10 and 10 projecting forward from an immovable standing substrate 8 or an immovable portion 9 of a rebound resilience tester. It is. Further, a ring-shaped moving tooth mold 3 is fixed to the front portion of the outer peripheral position of the test piece holder 1 by a number of fixing pins 11.
The test piece of rubber material accommodated in the test piece storage recesses 2 and 2 of the test piece holder 1 is the same as the test piece used in the known rebound resilience tester, and the test piece receiving member is provided at the bottom of the test piece 12. 13 and a holding ring 14 for holding the test piece 12 on the front.

  FIG. 3 shows the front face of the protective plate 5, and as shown in FIG. 1, the outer ring of the protective plate 5 is received by the receiving rollers 15 and 15 projecting forward from the moving ring-shaped tooth mold, and the specimen holder 1, the inner ring of the protective plate 5 is received by receiving rollers 16 and 16 projecting forward, and the protective plate 5 is supported by the test piece holder 1 so as to be reciprocally displaceable in the circumferential direction. The protective plate 5 has a large number of small diameter striking end passage through holes 19 through which the striking end 18 of the pendulum 17 of the rebound resilience test machine passes, and the test strip 12 passing through the test strip 12 into the test strip housing recess 2. A large number of large-diameter test piece passage through holes 20 for accommodating the test pieces 12 are alternately formed. The protection plate 5 has a position where the center of the small diameter striking end passage through hole 19 and the center of the test piece storage recess 2 of the test piece holder 1 are opposed to each other, and the center of the large diameter test piece passage through hole 20. The test piece holder 1 is configured to reciprocate between a position where the center of the test piece storage recess 2 coincides with the center of the test piece holder 1. This is performed by fitting with receiving holes 7 and 7 provided in the upper part of the plate.

The position shown in FIGS. 1 and 3, that is, the position where the input / output pin 21 is fitted in the receiving hole 7 on the right side of the test piece holder 1, and the center of the small-diameter impact end passage through hole 19 of the protection plate 5 is centered on the test piece holder 1. The test piece storage recess 2 coincides with the center, and the striking test is performed by passing the striking end 18 of the pendulum 17 through the striking end passage through hole 19 at the lowest end in this state.
On the other hand, the large-diameter test piece passage through hole 20 of the protective plate 5 and the test piece storage recess 2 of the test piece holder 1 are in one position at the position where the input / output pin 21 is fitted in the receiving hole 7 on the left side of the test piece holder 1. In this state, the test piece 12 is stored in the test piece storage recess 12 together with the test piece receiving member 13 and the presser ring 14, or the test piece is taken out from the test piece storage recess 2.

  In order to put the test piece 12 into and out of the test piece storage recess 2 of the test piece holder 1, the test piece holder 1 is preferably tilted backward or forward together with the protective plate 5 and tilted rearward. The test piece 12 is accommodated in the test piece storage recess 2 of the test piece holder 1 through the test piece passage through hole 20 of the protective plate 5, while the tested test piece 12 is stored in the test piece storage recess of the test piece holder 1. 2 is taken out.

As shown in claim 3, the present invention is also characterized by the relationship between the structure of the test piece housing recess 2 and the test piece 12, the test piece receiving member 13, and the presser ring.
As shown in FIGS. 6 and 7, the test piece storage recess 2 has a diameter larger than the diameter of the test piece 12 and a diameter that allows the presser ring 14 for holding the test piece to enter. Thus, an interval 31 that allows the test piece 12 to expand is formed between the test piece 12 and the wall surface of the test piece recess 2 around the test piece 12. That is, when the striking end of the pendulum strikes the test piece 12, the test piece 12 can be expanded laterally.
Therefore, the step part 31 is formed in the back of the test piece accommodation recessed part 2, and the test piece receiving part 33 formed in the diameter in which the innermost part of the test piece 12 can enter is formed in the back. Further, a stepped portion 34 is formed in the back thereof, and a receiving member receiving portion 35 for receiving the test piece receiving member 13 is formed in the back thereof.

  With the above configuration, in order to store the test piece 12, the receiving member 13, and the presser ring 14 in the test piece storage recess 2, the receiving member 13 is stored in the receiving member receiving portion 35 located at the innermost position of the storage recess 2. The inner part of the test piece 12 is accommodated in the test piece receiving part 33, whereby a gap 31 is formed between the test piece 12 and the peripheral wall of the storage recess 2, and then the presser ring 14 is formed at the front end of the storage recess 2. Can be stored. Even if the test piece 12 has stickiness, the gap 31 does not adhere to the peripheral wall of the storage recess 2. In order to remove the test piece 12, the receiving member 13, and the presser ring 14 from the test piece storage recess 2, a push bar (not shown) is inserted into the through hole 6 provided in the back of the test piece storage recess 2 and pushed. Just put it out.

Next, the effect | action which carries out the impact test of all the test pieces of a test piece holder is demonstrated. The test pieces 12 are stored in all the test piece storage recesses 2 of the test piece holder 1, the fixing pin 21 on the upper side of the protective plate 5 is removed from the receiving hole 7 on the left side of the test piece holder 1, and the protective plate 5 is moved to the right side 7. Rotate by an angle of 5 ° and insert the fixing pin 21 into the receiving hole 7 on the right side of the specimen holder 1. Thereby, all the small diameter striking end passage through-holes 19 of the protective plate 5 and all the test piece storage recesses 2 of the test piece holder 1 are made to coincide with each other.
In this state, the test piece holder 1 is actuated by the drive gear 4 so that the test piece storage recess 2 at one end of the test piece holder 1 and the small-diameter impact end passage through hole 19 of the protective plate 5 are positioned at the lowest end. That is, the specimen holder 1 and the protection plate 5 are moved so as to be positioned at the impact test position. Then, a striking test is performed by dropping the striking end 18 of the pendulum 17 onto the test piece 12 at the lowermost end. Next, the test piece holder 1 and the protective plate 5 are moved at an angle of 15 ° so as to be positioned at the next impact test position, and the test specimen holder 1 and the protective plate 5 are sequentially moved to strike all the test pieces 12. I am trying to test.

FIGS. 8 to 11 show a pressing plate in which a striking end passage through hole through which the striking end 18 of the pendulum 17 passes is described at a passing position of the striking end 18 of the pendulum 17, and its configuration and operation will be described.
In the figure, reference numeral 22 denotes a pressing plate, which has a substantially rectangular shape with both sides curved in the front direction, and a striking end passage through hole 23 of the pendulum 17 is formed at the center position. This pressing plate 22 is provided with connecting rods 24, 24 that are connected rearwardly at four locations, upper, lower, left, and right, and these connecting rods 24, 24 pass through the stationary part 9 of the rebound resilience tester to reach the rear. The drive plate 25 is provided by connecting the rear ends of the four connecting rods 24, 24. An operating rod 27 of an air cylinder 26 is connected to the drive plate 25 (shown in FIG. 8).
As shown in FIGS. 1 and 8, the pressing plate 22 has its striking end passage through hole 23 positioned at a position where the striking end 18 of the pendulum 17 passes. Further, the pressing plate 22 is provided with pressing pins 28, 28 at the upper, lower, left and right positions of the hitting end passage through hole 23, and the pressing plate 22 is moved backward by the backward operation of the operating rod 27 of the air cylinder 26. Operate. At that time, the pressing pins 28, 28 pass through the large-diameter test piece passage through holes 20 of the protection plate 5 or the press pin passage through holes 29, 29 formed separately in the protection plate 5, thereby holding the holding ring 14 of the test piece 12. The test piece 12 is pressed and fixed. Thus, an accurate impact test of the test piece 12 is performed.
Further, the retracting operation of the operating rod 27 of the air cylinder 26, that is, the forward operation, moves the pressing plate 22 forward from the protective plate 5 so that the striking end 18 of the pendulum 17 does not hit the test piece 12. The test is done with a single blow. Thus, the striking end 18 of the pendulum 17 is prevented from hitting the test piece 12 several times due to inertia, and only the correct numerical value of the striking test is obtained to stabilize the numerical value of the test.

  FIG. 12 shows an embodiment in which heaters 30 are provided on the front and rear surfaces of the test specimen holder 1, and the impact test can be performed under a desired temperature condition by this heater action.

  In the above-described embodiment, the test piece holder 1 and the protective plate 5 are configured in a ring shape and the test piece is rotated and supplied. However, the test piece holder and the protective plate are configured in a straight line. The test piece may be supplied by linear movement.

The whole perspective view of this invention test piece supply apparatus. The front view of a test piece holder. The front view of a protection board. The BB sectional view of the upper end position of the test piece holder with which the protective plate was attached. Sectional drawing in alignment with AA on FIG. Sectional drawing of the state in which the test piece was stored in the test piece storage recessed part of the test piece holder. FIG. 3 is an exploded cross-sectional view of a state in which a test piece is taken out from a test piece storage recess of a test piece holder. The perspective view of the cylinder part principal part of a presser plate. The perspective view of the back surface of a pressing plate. Sectional drawing of the presser position of a presser plate. Sectional drawing of the return position of a presser plate. The expanded sectional view with a heater of a specimen holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Test piece holder 2 Test piece accommodation recessed part 3 Movement tooth type 4 Drive gear 5 Protection plate 6 Through hole 7 Receiving hole 8 Standing board 9 Non-moving part 10 Receiving roller 11 Fixing pin 12 Test piece 13 Test piece receiving member 14 Pressing ring 15 Receiving roller 16 Receiving roller 17 Pendulum 18 Blowing end 19 Blowing end passing through hole 20 Test piece passing through hole 21 Entrance / exit pin 22 Pressing plate 23 Blowing end passing through hole 24 Connecting rod 25 Drive plate 26 Air cylinder 27 Actuating rod 28 Pressing pin 29 Pressure pin passage through hole 30 Heater 31 Spacing 32 Step portion 33 Test piece receiving portion 34 Step portion 35 Receiving member receiving portion

Claims (8)

A test piece holder in which a large number of test piece storage recesses are formed to store a large number of test pieces at intervals, a moving means fixed to the test piece holder, and a test piece holder in cooperation with the moving means. This is a test piece supply device for a rebound resilience tester which consists of a moving drive means and moves the test piece holder at every interval of a large number of test piece storage recesses, and a protective plate is provided immediately before the test piece holder. A large number of small-diameter striking end passage through holes through which the pendulum striking end passes and a large number of large-diameter test piece passage through holes that pass through the test piece and are stored in the test piece storage recesses of the test piece holder. Are alternately formed, and this protective plate can be reciprocally displaced by the distance between the striking end passage through hole and the test piece passage through hole, and the striking end passage through hole or the test piece passage through hole is the test piece. Opposite the test piece storage recess of the holder Rebound resilience tester specimens feeder that. The test piece storage recesses are positioned at equal intervals, the moving means is a moving tooth mold, the driving means for moving the test piece holder in cooperation with the moving means is a driving gear, and a number of tests 2. The test strip supply apparatus for a rebound resilience tester according to claim 1, wherein the test strip holder is moved at equal intervals of the concave portions. The diameter of the test piece storage recess is larger than the diameter of the test piece so that a presser ring for holding the test piece can enter, and the test piece is allowed to expand between the test piece storage recess and the periphery of the test piece. The rebound resilience tester according to claim 1 or 2, wherein there is a space, a step is formed in the back of the test piece storage recess, and a test piece receiving part formed to have a diameter capable of containing the test piece is formed. Specimen supply device. A pressing plate having a striking end passage through hole through which the striking end of the pendulum passes is provided at a position where the pendulum striking end passes, and a pair or two pairs of pressing pins project from the back side of the pressing plate. 4. The test piece supply device for a rebound resilience tester according to claim 1 , wherein the test piece can be pressed and released by an operation, and the test piece is pressed and fixed by a pressing operation of a pressing pin at a pressing position. 5. The test piece supply device for a rebound resilience tester according to claim 1 , wherein the pendulum striking end is prevented from hitting the test piece at the release position of the pressing plate. 6. The test strip supply device for a rebound resilience tester according to claim 1 , wherein a heater is provided in the test strip holder. 7. The test strip supply device for a rebound resilience tester according to claim 1, wherein the test strip holder and the moving means or the protective plate are formed in a ring shape. 7. The test strip supply apparatus for a rebound resilience tester according to claim 1, wherein the test strip holder and the moving means or the protective plate are formed in a straight line.

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