JP5131555B2 - Method and apparatus for sampling sheet rubber - Google Patents

Description

  The present invention relates to a sheet-like rubber sampling method and apparatus for sampling a sample piece for sampling from a sheet-like rubber conveyed from a kneading step, for example, in a tire manufacturing process.

Conventionally, in the tire manufacturing process, there is a process in which raw rubber such as natural rubber, carbon black, compounding agent, etc. is put into a closed kneader and kneaded. It is necessary to determine for each batch of each lot. Therefore, conventionally, when the rubber unloaded from the kneading machine is rolled into a sheet and conveyed by a conveyor, a sample piece is punched from the sheet rubber for each batch of a plurality of lots to be continuously conveyed. The sample is punched and collected, and the sample piece is inspected to determine whether or not the specification is satisfied (for example, see Patent Document 1).
Japanese Unexamined Patent Publication No. 64-50929

  By the way, the sample pieces collected from the sheet-like rubber for each batch are sequentially conveyed to the determination chamber. For example, the order of the sample pieces is such that the next sample piece is punched while the sample piece remains in the punching machine. If it is replaced and transported to the judgment chamber, it will be erroneously judged as a rubber with a different specification before and after the change of each lot, and it will not be sent to the subsequent process even though the rubber is as specified. It was.

  The present invention has been made in view of the above-mentioned problems, and the object of the present invention is to provide a sheet rubber sampling method in which the specifications of the sample pieces are not erroneously determined even when the order of the sample pieces is changed. And providing such a device.

In order to achieve the above object, the present invention provides a sample from a sheet-like rubber for each batch of a plurality of lots to be continuously conveyed when the rubber unloaded from a kneader is rolled into a sheet and conveyed. in the sampling method of the rubber sheet for collecting punched pieces, the only sample piece of the last batch that put on each lot, discernible identify differences between at least first or last sample piece of batch in the next lot A display is given.

Thereby, even when the order of the sample pieces is changed, it is possible to easily determine which lot the sample pieces before and after the change of each lot are based on the presence or absence of the identification display of the sample pieces. In this case, since the identification display is given only to the sample piece of the last batch in each lot, the provision of the identification display 3b can be minimized.

In order to achieve the above object, the present invention provides a sheet for each batch of a plurality of lots that are continuously conveyed when the rubber unloaded from the kneader is rolled into a sheet and conveyed by a conveyor. in the sampling device rubber sheet collecting punched by the punching machine the specimen from Jo rubber, the only sample piece of the last batch that put on each lot, the sample pieces of at least the first or last batch in the next lot There is provided an identification display providing means for providing an identification display capable of discriminating the differences.

Thereby, even when the order of the sample pieces is changed, it is possible to easily determine which lot the sample pieces before and after the change of each lot are based on the presence or absence of the identification display of the sample pieces. In this case, since the identification display is given only to the sample piece of the last batch in each lot, the provision of the identification display 3b can be minimized.

According to the present invention, even when the order of the sample pieces is changed, it is possible to easily determine which lot the sample pieces are before and after the change of each lot depending on the presence or absence of the identification display of the sample pieces. The specification of the sample piece is not erroneously determined, and it is possible to effectively prevent the occurrence of the problem that the rubber according to the specification is not sent to the subsequent process due to the erroneous determination. In this case, since the application of the identification display can be minimized, there is an advantage that productivity is not lowered.

  1 and 6 show an embodiment of the present invention. FIG. 1 is a schematic side view of a sampling device, FIG. 2 is a side view of an identification display imparting machine, FIG. 3 is a plan view of a sample piece, and FIG. FIG. 5 and FIG. 6 are schematic side views showing the operation of the sampling device.

  This sampling apparatus includes a punching machine 10 for punching a sample piece 3a from a sheet rubber 3 rolled by a pair of rollers 1 and conveyed by a conveyor 2, and an identification display 3b on the sheet rubber 3 just before the sample piece 3a is sampled. The sample piece 3 a punched out from the sheet-like rubber 3 is conveyed to the determination chamber 30.

  The punching machine 10 includes a cylindrical punching blade 11 and a cylinder 12 that raises and lowers the punching blade 11. The punching blade 11 is lowered to the sheet-like rubber 3 from above, as shown in FIG. A disk-shaped sample piece 3a is punched out. A conveyor 13 is provided below the punching blade 11 to convey the sample piece 3 a punched by the punching blade 11 to the determination chamber 30.

  The identification display imparting machine 20 presses the rotating member 21 against the sheet-like rubber 3, the rotating member 21 that can give the identification indication 3 b to the sheet-like rubber 3, the support member 22 that rotatably supports the rotating member 21. And a cylinder 23 as a drive mechanism for driving the support member 22, and the support member 22 and the support member 22 are attached to a column 24. The rotating member 21 is formed of a circular member having an uneven portion 21a on the outer peripheral surface, and an identification display 3b (a trace of the uneven portion 21a) is given to the sheet-like rubber 3 by the uneven portion 21a. The support member 22 has a support shaft 22a that supports the rotation member 21 at one end, and the rotation member 21 rotates about the support shaft 22a. The cylinder 23 has a cylinder rod 23 a on the lower end side, and the cylinder rod 23 a is rotatably connected to the other end of the support member 22. The support column 24 rotatably supports the upper end of the cylinder 23, and one end side and the other end side of the support member 22 are rotatably connected via a support shaft 24a. That is, in this identification display assigning machine 20, when the support member 22 is lifted by the cylinder 23, the rotating member 21 is lifted away from the sheet rubber 3, and when the support member 22 is lowered by the cylinder 23, the rotating member 21 is It descends and is pressed against the sheet-like rubber 3.

  In the sampling apparatus configured as described above, when the rubber carried out from a kneader (not shown) is rolled into a sheet by each roller 1 and conveyed by the conveyor 2, it is continuously conveyed as shown in FIG. .., Ln-1, Ln batches B1, B2, B3,..., Bn-1, Bn for each of a plurality of lots L1, L2, L3,. It is punched and collected by the punching machine 10, and the sample piece 3a is transported to the determination chamber 30 to determine whether or not the specification is satisfied. At that time, from the first batch B1 of each lot to the batch Bn-1 immediately preceding the last batch Bn, only the punching machine 10 is operated as shown in FIG. In the last batch Bn of each lot, the punching machine 10 is operated to collect the sample piece 3a while giving the identification display 3b to the sheet-like rubber 3 immediately before collecting the sample piece 3a by the identification display applying machine 20. . In this case, when the operator performs a lot changing operation, the identification display giving machine 20 is controlled so that the identification display 3b is given to the sheet-like rubber 3 of the last batch Bn.

  Thereby, even when the order of the sample pieces 3a is changed, as shown in FIGS. 3 (a) and 3 (b), the sample pieces 3a before and after the change of each lot are changed depending on the presence / absence of the identification indication 3b of the sample pieces 3a. It is possible to easily determine whether the sample is a lot, and the sample pieces 3a are not determined in the wrong order.

  Thus, according to this embodiment, the identification display 3b that can distinguish the difference between the sample piece 3a of the last batch in each lot of the sheet-like rubber 3 and the sample piece 3a of the first batch in the next lot is provided. Even if the order of the sample pieces 3a is changed, it is possible to easily determine which lot the sample piece 3a before and after the change of each lot is based on the presence / absence of the identification display 3b of the sample piece 3a. can do. Thereby, the specification of the sample piece 3a is not erroneously determined, and it is possible to effectively prevent the occurrence of a problem that rubber according to the specification is not sent to the subsequent process due to the erroneous determination.

  In this case, since the identification display 3b is given only to the sample piece 3a of the last batch in each lot, the provision of the identification display 3b can be minimized, and the productivity is not lowered. There is.

  Further, the identification display imparting machine 20 collects the rotating member 21 having the uneven portion 21a capable of imparting the identification display 3b on the outer peripheral surface, the support member 22 that rotatably supports the rotating member 21, and the sample piece 3a. Since it comprises the cylinder 23 that drives the support member 22 so as to press the outer peripheral surface of the rotating member 21 against the immediately preceding sheet-like rubber 3, the identification display 3b can be reliably given with a simple configuration, Very advantageous.

  Moreover, in the said embodiment, what showed the trace of the gearwheel to the sheet-like rubber 3 as the identification display 3b by the rotation member 21 of the identification display provision machine 20 was shown, but numbers, symbols, inscriptions, etc. It is also possible to give a different identification display for each lot.

The schematic side view of the sampling device which shows one Embodiment of this invention Side view of identification machine Top view of sample piece Top view of sheet rubber Schematic side view showing the operation of the sampling device Schematic side view showing the operation of the sampling device

Explanation of symbols

  DESCRIPTION OF SYMBOLS 2 ... Conveyor, 3 ... Sheet rubber | gum, 3a ... Sample piece, 3b ... Identification display, 10 ... Punching machine, 20 ... Identification display provision machine, 21 ... Rotating member, 21a ... Uneven part, 22 ... Support member, 23 ... Cylinder .

Claims (3)

Sampling of sheet-like rubber that is sampled by punching a sample piece from sheet-like rubber for each batch of a plurality of lots that are continuously conveyed when the rubber unloaded from a kneader is rolled and conveyed. In the method
The only sample piece of the last batch that put on each lot, at least the first or last sheet rubber sampling, characterized in that confer discernible identification differences between the sample piece of the batch in the next lot Method. When the rubber unloaded from the kneader is rolled into a sheet and transported by a conveyor, a sample piece is punched and collected from the sheet rubber for each batch of a plurality of lots to be transported continuously. In the sheet rubber sampling device,
Wherein the last specimen batch only that put in each lot, with an identification assigning means for assigning distinguishable identification of differences between at least the first or specimen of the last batch of the next lot A sheet rubber sampling device. The identification display providing means includes a rotating member having an uneven portion capable of providing an identification display on the outer peripheral surface, a support member that rotatably supports the rotating member, and a rotating member on the sheet-like rubber immediately before the sample piece is collected. that the support member is composed of a drive mechanism for driving the sampling device rubber sheet according to claim 2 Symbol mounting characterized so as to press the outer peripheral surface of the.

Images