Abstract: A wear detection device for a conveyor belt (1) includes magnet members (12a and 12b) buried in a conveyor belt (11) having an endless belt shape, a magnetic sensor (13j) which is arranged opposite to an outer circumferential surface of the conveyor belt (11) and is configured to detect magnetic fields from the magnet members (12a and 12b) to generate an output signal, and a calculation unit (141) which is configured to calculate the thickness of the conveyor belt (11) according to the output signal generated by the magnetic sensor (13j). The wear detection device for a conveyor belt (1) further includes a storage unit (142) which is configured to store the thickness calculated by the calculation unit (141), and a processing unit (143) which is configured to calculate the decrease amount of the thickness per a predetermined moving load amount of the conveyor belt (11) according to the thickness stored in the storage unit (142) and determine whether or not this value exceeds a threshold value set in advance.

Abstract: A wear detection device for a conveyor belt (1) includes magnet members (12a and 12b) buried in a conveyor belt (11) having an endless belt shape, a magnetic sensor (13j) which is arranged opposite to an outer circumferential surface of the conveyor belt (11) and is configured to detect magnetic fields from the magnet members (12a and 12b) to generate an output signal, and a calculation unit (141) which is configured to calculate the thickness of the conveyor belt (11) according to the output signal generated by the magnetic sensor (13j). The wear detection device for a conveyor belt (1) further includes a storage unit (142) which is configured to store the thickness calculated by the calculation unit (141), and a processing unit (143) which is configured to calculate the decrease amount of the thickness per a predetermined moving load amount of the conveyor belt (11) according to the thickness stored in the storage unit (142) and determine whether or not this value exceeds a threshold value set in advance.

Abstract: A manufacturing method of a finite conveyor belt of the present invention includes a laminated body formation step of forming a laminated body (35) in which a core layer member (32) which includes a tensile body (14) is interposed between an unvulcanized top cover rubber member (33) and an unvulcanized bottom cover rubber member (34) in a belt thickness direction T, and a vulcanization step of vulcanizing the laminated body (35) by pressurizing in the belt thickness direction (T) and heating the laminated body to form a finite conveyor belt, and the laminated body formation step includes a member formation step of forming the top cover rubber member (33) by separately connecting both ends of an unvulcanized first cover rubber part (36) in a belt length direction (L) in which a detection object (15) is embedded with ends of an unvulcanized second cover rubber parts (37) in the belt length direction (L).

Abstract: A sensor and monitoring system that can prevent the accumulation of scraps of a transport object on the sensor are provided. A sensor 4 is located below a return-side portion 2a of a conveyor belt 2, and includes: a detector 40 that detects a detection object 3 embedded in the conveyor belt; and a cover 41 covering at least an upper part of the detector, wherein the cover has a downward surface 411 that extends continuously downward from a top part of the cover while extending outward in the horizontal direction.

Abstract: A sensor and monitoring system that can prevent the accumulation of scraps of a transport object on the sensor are provided. A sensor 4 is located below a return-side portion 2a of a conveyor belt 2, and includes: a detector 40 that detects a detection object 3 embedded in the conveyor belt; and a cover 41 covering at least an upper part of the detector, wherein the cover has a downward surface 411 that extends continuously downward from a top part of the cover while extending outward in the horizontal direction.

Abstract: A conveyor belt apparatus (10) is provided with a wear measuring device (12) that measures an amount of wear of a surface (11a) of a conveyor belt (11) on which transport material has been loaded, and with a revolution counting device (14) that counts a number of revolutions of the conveyor belt (11).

Abstract: A manufacturing method of a finite conveyor belt of the present invention includes a laminated body formation step of forming a laminated body (35) in which a core layer member (32) which includes a tensile body (14) is interposed between an unvulcanized top cover rubber member (33) and an unvulcanized bottom cover rubber member (34) in a belt thickness direction T, and a vulcanization step of vulcanizing the laminated body (35) by pressurizing in the belt thickness direction (T) and heating the laminated body to form a finite conveyor belt, and the laminated body formation step includes a member formation step of forming the top cover rubber member (33) by separately connecting both ends of an unvulcanized first cover rubber part (36) in a belt length direction (L) in which a detection object (15) is embedded with ends of an unvulcanized second cover rubber parts (37) in the belt length direction (L).

Abstract: A rubber magnet (3) includes a plate-like diagonal portion (21) and a plate-like parallel portion (22) which are both magnetized in a thickness direction, the diagonal portion (21) extending in a conveyor belt width direction while linearly extending, in section in a conveyor belt length direction, from an outer side end (3b), which is closer to the front-side surface (2a), to an inner side end (3a), which is away from the front-side surface (2a), while being at an angle to the front-side surface (2a), the parallel portion (22) being formed continuously from the inner side end (3a) of the diagonal portion, so as to be arranged parallel to the front-side surface (2a).

Abstract: A conveyor belt apparatus (10) is provided with a wear measuring device (12) that measures an amount of wear of a surface (11a) of a conveyor belt (11) on which transport material has been loaded, and with a revolution counting device (14) that counts a number of revolutions of the conveyor belt (11).

Abstract: To provide a thermoplastic resin container that contains food or drink subjected to a retort processing for which completion of the retort processing can be confirmed and supervised with simple means without the need of an expensive member or facility, not only whether the temperature of the retort processing is reached but also whether the retort processing is performed as specified can be confirmed, and the consumer also can easily confirm completion of the retort processing of the product. The container is produced by two-stage stretch blow molding of a preform made of a thermoplastic resin in such a manner a part that is not stretched or is insufficiently stretched is formed at a part of the container, and the part that is not stretched or is insufficiently stretched is whitened to form a retort processing completion confirming part by heating in the retort processing after a content is packed and sealed in the container.

Abstract: A rubber magnet (3) includes a plate-like diagonal portion (21) and a plate-like parallel portion (22) which are both magnetized in a thickness direction, the diagonal portion (21) extending in a conveyor belt width direction while linearly extending, in section in a conveyor belt length direction, from an outer side end (3b), which is closer to the front-side surface (2a), to an inner side end (3a), which is away from the front-side surface (2a), while being at an angle to the front-side surface (2a), the parallel portion (22) being formed continuously from the inner side end (3a) of the diagonal portion, so as to be arranged parallel to the front-side surface (2a).

Abstract: Disclosed is a conveyor belt (1) which is provided with a plurality of rollers (10), a detection portion (110) for detecting the state of rollers (10), and processing portion (120) connected to the detection portion (110) and processes output signals from the detection portion (110). The conveyor belt (1) has a mount portion (7) on which the processing portion (120) is mounted. The mount portion (7) is provided at the end part (5) of the conveyor belt (1) in the width direction thereof. Providing a detection portion for processing output signals from a sensor for detecting rotational failure at the end of the conveyor belt in the width direction thereof makes it possible to suppress increased costs in a belt conveyor apparatus and to reduce the frequency of failure of the detection portion.

Abstract: The present invention provides a system for monitoring belt support rollers which is simple and can reduce the cost remarkably. A sensor unit 2 is provided on a conveyor belt 1. The sensor unit 2 has a sensor 11 for measuring a physical quantity applied from the belt support rollers 3, a decision device 13 for deciding abnormalities in the belt support rollers 3 based on the measured values from the sensor 11, a memory device 15 for storing data containing the result of the decision, and a transmission device 16 for transmitting the data stored in the memory device 15 to the outside of the conveyor belt 1 via radio waves. A reception station 5 for receiving the data transmitted from the transmission device 16 is provided outside of the conveyor belt 1.

Abstract: To provide a thermoplastic resin container that contains food or drink subjected to a retort processing for which completion of the retort processing can be confirmed and supervised with simple means without the need of an expensive member or facility, not only whether the temperature of the retort processing is reached but also whether the retort processing is performed as specified can be confirmed, and the consumer also can easily confirm completion of the retort processing of the product. The container is produced by two-stage stretch blow molding of a preform made of a thermoplastic resin in such a manner a part that is not stretched or is insufficiently stretched is formed at a part of the container, and the part that is not stretched or is insufficiently stretched is whitened to form a retort processing completion confirming part by heating in the retort processing after a content is packed and sealed in the container.

Abstract: A die head is provided with a plunger and a measuring chamber, and the molten resin is uniformly fed to the die head of an extrusion-forming machine. That is, the die head comprises a main layer-forming flow passage for flowing a molten resin into an ejection port of the die head of the extrusion-forming machine passing through the die head, and a core layer-forming flow passage for intermittently flowing a molten resin into the ejection port of the die head passing through the die head.

Abstract: A polyester container obtained by stretch-forming a preform of a thermoplastic polyester resin formed by injection forming wherein the central portion of the bottom wall is the remaining part of the gate at the time of injection forming, and is formed relatively thicker than the bottom wall surrounding the central portion, and the central portion of the bottom wall is substantially amorphous, and the bottom wall surrounding the central portion is oriented and crystallized. The container exhibits excellent heat resistance and shock resistance despite a thick portion that is the remaining portion of the injection gate is formed at the center of the bottom portion.

Abstract: A fuel cell cartridge for containing fuel for fuel cells, comprising a polyester resin, wherein after the fuel is contained and preserved at 60° C. for one week, a change of density at the bottom portion and the mouth portion is 0.01 g/cm3 or less. Even when methanol of a high concentration is contained, the fuel cell cartridge maintains excellent appearance effectively preventing the occurrence of whitening in the container and, particularly, at the mouth portion and the bottom portion thereof, and effectively suppressing a decrease in the shock resistance.

Abstract: A sealing member 13 is heat-sealed to the upper end surface of the mouth portion 12 of a container, and a lid 15 which is provided with a top panel 15a that covers the mouth portion 12 of the container, and which has an inner peripheral projection 15e that is positioned in the vicinity of a place inner than the inner periphery of the mouth portion 12 of the container on the inside surface of the top panel 15a is fitted to the mouth portion 12 to make it easy to peel (open and peel) the sealing member 13 while high sealing property is ensured, and to prevent the seal member 13 from peeling at the inner periphery of the mouth portion 15 of the container which peeling is caused by a rise in the internal pressure in the container.

Abstract: In a wide-mouth plastic container including a container body 2 provided with a mouth portion 3, a body portion 4 and a bottom portion 5 and a lid 6 fitted to the mouth portion 3, the body portion 4 is provided with an internal pressure variation-absorbing panel 4a and the mouth portion 3 is heat-sealed with a film material 7 to seal the opening of the container body 2, thereby securing high sealing property and heat resistance in high-temperature sterilization and improving the internal pressure variation absorbing performance of the container.

Abstract: A polyester container obtained by stretch-forming a preform of a thermoplastic polyester resin formed by injection forming wherein the central portion of the bottom wall is the remaining part of the gate at the time of injection forming, and is formed relatively thicker than the bottom wall surrounding the central portion, and the central portion of the bottom wall is substantially amorphous, and the bottom wall surrounding the central portion is oriented and crystallized. The container exhibits excellent heat resistance and shock resistance despite a thick portion that is the remaining portion of the injection gate is formed at the center of the bottom portion.