JP2016074510A - Transport auxiliary device of long-length member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transport auxiliary device of a long-length member which properly maintains the loosening of the long-length member between transport devices, and can smoothly perform the changeover of settings according to a specification of the long-length member.SOLUTION: A dancer roller 2 is placed on a long-length member A which is transported between two transport devices B1, B2 which are arranged in series, the dancer roller 2 is pivoted by an arm part 5 which vertically turns with a fulcrum 9 as a center, and a weight 7 is directly or indirectly connected to the arm part 5. The long-length member A is transported while controlling a transportation speed of at least either of the transport devices B1, B2 by a speed control part 4 on the basis of detection data by a detector 3 which detects a vertical variation of the dancer roller 2, and when changing a specification of the long-length member A, the weight 7 is made to approximate or separate from a support axial core 9a of the fulcrum 9 by a weight position regulation mechanism 8, and an applied load applied on the long-length member A by the dancer roller 2 is changed to a proper load.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a long-member conveyance auxiliary device, and more specifically, the slack between the long-member conveyance devices transferred by the conveyance device is appropriately maintained, and is set according to the specifications of the long member. It is related with the conveyance auxiliary device of the elongate member which can perform switching of smoothly.

  In a manufacturing factory for rubber products such as tires, a long member made of unvulcanized rubber is conveyed between manufacturing processes by a conveying device such as a belt conveyor device. When transporting a long distance, for example, belt conveyor devices are arranged in series at intervals in the transport direction. At this time, a dancer roller is disposed between the belt conveyor devices and placed on the long member to be conveyed. Then, by detecting the vertical fluctuation of the dancer roller attached to the arm portion that turns up and down, the slack of the long member is detected, and the conveyance speed of at least one belt conveyor device is controlled based on this detection data (for example, (See paragraph 0004 of Patent Document 1 and FIG. 4).

  In this system, since the dancer roller directly contacts the long member, an excessive load may be applied to the long member. In connection with this, the problem that the elongate member (unvulcanized rubber) conveyed by the post process shrink | contracts with time arises. Even if it is a general long member, when an excessive load is applied, deformation occurs in the longitudinal direction. Therefore, it is important not to apply an excessive load by the dancer roller.

  When the specifications of the long member are different, the appropriate load to be applied to the long member by the dancer roller is also different. For this reason, in this method, in order to vary the load applied by the dancer roller, it is necessary to replace the weight with the optimum weight for each specification of the long member, and a complicated weight replacement work occurs. Therefore, it has been difficult to quickly switch the setting of the apparatus according to the specifications of the long member.

  Therefore, Patent Document 1 proposes a method of managing the slack of a long member using an ultrasonic sensor or a laser displacement meter (refer to the claims and FIG. 1). This method eliminates the need for complicated weight exchange work. However, the method of managing the slack without contact with the long member as described above cannot suppress meandering or fluttering of the long member. For example, when the long member is fluttered, the slack of the long member cannot be accurately detected by such a method. Therefore, there has been a demand for a method that can appropriately maintain the slack of the long member between the conveying devices while using a dancer roller that contacts the long member.

JP 2013-147320 A

  The object of the present invention is to maintain a slack between the conveying devices of the long member transferred by transferring the conveying device, and to change the setting smoothly according to the specifications of the long member. It is in providing the conveyance auxiliary device of a member.

  In order to achieve the above object, the long-member conveyance auxiliary device of the present invention is installed between two conveyance devices arranged in series at intervals in the conveyance direction, and is conveyed by these conveyance devices. A dancer roller placed on a long member, a detector for detecting up and down fluctuations of the dancer roller, and a speed control for controlling at least one transport speed of the transport device based on detection data by the detector An arm portion that pivots up and down around a fulcrum to pivotally support the dancer roller, a weight that is directly or indirectly connected to the arm portion, and the weight And a weight position adjusting mechanism for moving the fulcrum toward and away from the support axis of the fulcrum.

  According to the present invention, the load applied to the long member by the dancer roller can be appropriately set without excess or deficiency simply by shifting the position of the weight with respect to the support shaft center of the fulcrum of the arm portion using the weight position adjusting mechanism. Therefore, it is possible to appropriately maintain the slack of the long member between the conveying devices while suppressing the meandering and fluttering of the long member.

  As described above, the load applied to the long member can be quickly changed simply by shifting the weight position, so that complicated weight exchanging work is not required even if the specification of the long member is changed. Therefore, it is possible to smoothly switch the setting of the device (load load due to weight) according to the specifications of the long member.

  Here, for example, the weight is arranged in a region opposite to the arm portion with respect to the fulcrum. Alternatively, the weight is arranged in a region on the same side as the arm portion with respect to the fulcrum.

  An input unit for inputting data to the operation control unit of the weight position adjusting mechanism is provided. Based on the data input by the input unit, the distance of the fulcrum from the support axis is adjusted to an appropriate range. It can also be configured. According to this configuration, the setting of the apparatus can be switched according to the specifications of the long member only by inputting necessary data to the input means. Therefore, the work can be simplified and lightened.

  For each specification of the long member, the storage unit stores in advance an appropriate range of the distance from the support axis of the fulcrum of the weight, and stores the data regarding the appropriate range corresponding to the long member to be conveyed It is also possible to adopt a configuration in which the operation control unit is automatically input from the unit through the input unit. According to this configuration, it is possible to further simplify and lighten the switching operation of the setting of the apparatus according to the specifications of the long member.

  The weight position adjusting mechanism may include an actuator attached to a rod that moves the weight forward and backward. According to this configuration, the load applied to the long member can be quickly changed with a simple configuration.

  The long member is, for example, unvulcanized rubber. In the case of unvulcanized rubber, the load applied by the dancer roller tends to affect the shrinkage in the subsequent process. Therefore, according to this structure, it becomes possible to suppress shrinkage | contraction of the elongate member of unvulcanized rubber more effectively.

It is explanatory drawing which illustrates embodiment of the conveyance assistance apparatus of the elongate member of this invention by a side view. It is explanatory drawing which illustrates the conveyance assistance apparatus of FIG. 1 by planar view. It is explanatory drawing which shows the modification which changed arrangement | positioning of the actuator of FIG. It is explanatory drawing which illustrates the motion of the actuator of FIG. 1 by a side view. It is explanatory drawing which illustrates another embodiment of the conveyance assistance apparatus of a elongate member by a side view.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A long member conveyance auxiliary device of the present invention will be described below based on the embodiments shown in the drawings.

  The long-member conveyance auxiliary device 1 of the present invention illustrated in FIGS. 1 to 4 appropriately maintains the slack S of the long member A that is transferred and conveyed by the conveyance devices B1 and B2. Examples of the long member A include belt-like or string-like unvulcanized rubber, vulcanized rubber, or fiber. In addition to the belt conveyor apparatus illustrated in FIG. 1, examples of the transport apparatuses B1 and B2 include a rotating drum.

  This conveyance auxiliary device 1 is a dancer roller 2, a detector 3 that detects the vertical fluctuation of the dancer roller 2, and a speed that controls the conveyance speed of at least one of the conveyance devices B1 and B2 based on detection data from the detector 3. And a control unit 4. Furthermore, an arm portion 5 that pivots up and down around a fulcrum 9 to pivotally support the dancer roller 2, a weight 7 that is directly or indirectly connected to the arm portion 5, and an actuator 8 that serves as a weight position adjusting mechanism are provided. Yes. In this embodiment, the conveyance assisting device 1 further includes an input unit 11 for inputting data to the operation control unit 10 of the actuator 8 and a storage unit 12.

  The dancer roller 2 is a cylindrical body made of metal or resin, and has a dimension longer than the width of the long member A. Depending on the specifications (material, size, etc.) of the long member A, the diameter and material of the dancer roller 2 can be changed. When the long member A is an unvulcanized rubber, it is possible to maintain good separation from the long member A by making the outer peripheral surface of the dancer roller 2 a low friction material such as fluororesin. Thereby, conveyance of the elongate member A becomes smooth.

  As the detector 3, for example, a laser or ultrasonic displacement meter (sensor) is used. The detector 3 is connected to the speed control unit 4 by radio or wire, and has a structure capable of transmitting data detected by the detector 3 to the speed control unit 4.

  The speed control unit 4 is an arithmetic device such as a computer, and changes the transport speed of at least one of the transport devices B1 and B2 based on the detection data transmitted from the detector 3.

  The arm part 5 is a rigid body made of metal or resin. As shown in FIG. 2, the arm unit 5 pivotally supports the dancer roller 2 at both longitudinal ends of the dancer roller 2. Each arm portion 5 is joined to a fulcrum 9.

  In this embodiment, the fulcrum 9 is a rigid shaft made of metal or resin. The shaft-like fulcrum 9 is pivotally supported at both longitudinal ends by a base or the like. A weight 7 is connected to the arm portion 5 directly or indirectly. In this embodiment, a frame 6 is provided at one end in the longitudinal direction of the fulcrum 9. The weight 7 is indirectly connected to the arm portion 5 through the frame 6 and the fulcrum 9.

  The frame 6 is a rigid body made of metal or resin. The frame 6 illustrated in FIG. 2 is L-shaped, but may have other shapes. An actuator 8 is joined to the frame 6. In FIG. 2, the entire actuator 8 is located on the opposite side of the dancer roller 2 with respect to the fulcrum 9. For example, as shown in FIG. 3, a part of the actuator 8 can be arranged on the same side as the dancer roller 2 with respect to the fulcrum 9.

  The actuator 8 moves the weight 7 toward and away from the support shaft core 9 a of the fulcrum 9. In this embodiment, the actuator 8 is formed of a cylinder 8a and a rod 8b. As long as the distance L between the weight 7 and the fulcrum 9 (support axis 9a) can be changed, not only the actuator 8 but also another weight position adjusting mechanism can be used.

  Details of the actuator 8 are illustrated in FIG. In FIG. 4, the weight 7 is joined to the cylinder 8a. The distance L between the weight 7 and the fulcrum 9 can be changed by moving the rod 8b back and forth with respect to the cylinder 8a. As the actuator 8, various mechanisms for moving the rod 8b by electric, hydraulic, pneumatic, or the like can be used. Further, a mechanism capable of adjusting the position of the weight 7 in a stepless manner or a mechanism capable of adjusting in a stepwise manner can be employed. For example, if a plurality of positions where the weight 7 is moved and fixed are set differently in the moving direction of the rod 8b in advance, the position of the weight 7 can be adjusted stepwise.

  An operation control unit 10 that controls the distance L between the weight 7 and the fulcrum 9 is connected to the weight position adjusting mechanism 8. The work control device 10 is connected to an input means 11 that can input data. Furthermore, a storage unit 12 is connected to the input means 11. For example, an appropriate range of the distance L is stored in the storage unit 12 for each specification of the long member A.

  The operation control unit 10 is an arithmetic device such as a computer and controls the actuator 8. The input unit 11 is used when inputting information such as the material and shape of the long member A and data such as an instruction to the actuator 8 to the operation control unit 10. Although data can be manually input from the input means 11, the trouble of data input can be omitted by providing the storage section 12, and the input means 11 is automatically set based on the data accumulated in the storage section 12. Necessary data can be input to the operation control unit 10 via the network.

  A process of appropriately maintaining the slack S of the long member A using the conveyance auxiliary device 1 in the embodiment illustrated in FIG. 1 will be described below.

  For example, when a long member A having a specification such as a belt-shaped unvulcanized rubber is transported, the fulcrum 9 and the weight 7 are set so that an appropriate load corresponding to the specification is applied to the long member A by the dancer roller 2. Adjust the distance L. In the state set in this way, the long member A is conveyed using the conveying devices B1 and B2, and the slack S is finely adjusted by adjusting the conveying speed of at least one of the conveying devices B1 and B2.

  When the slack S changes during conveyance, since the dancer roller 2 is in contact with the long member A, the dancer roller 2 moves in the vertical direction in accordance with the movement of the long member A. Then, the detector 3 detects a change in the position of the dancer roller 2 and transmits detection data to the speed control unit 4. When the slack S is larger than the appropriate value, the transport speed of the transport apparatus B1 is decreased, the transport speed of the transport apparatus B2 is increased, or both. When the slack S is smaller than the appropriate value, the transport speed of the transport apparatus B1 is increased, the transport speed of the transport apparatus B2 is decreased, or both are performed. In this way, the sagging S is maintained in an appropriate range.

  In any case, since the appropriate load according to the specification of the long member A to be conveyed is loaded by the dancer roller 2, the long member A is smoothly conveyed without fluttering. And when the elongate member A is an unvulcanized rubber, it becomes advantageous also in preventing the malfunction of shrink | contracting with time in a post process.

  Next, when the long member A having different specifications is transported, the setting of the transport assisting device 1 is switched in order to change the load. At this time, in the present invention, for example, the appropriate range data of the distance L that matches the specification of the long member A to be conveyed is searched from the data stored in the storage unit 12. Then, this data is input from the storage unit 12 to the operation control unit 10 via the input unit 11. The operation control unit 10 operates the actuator 8 based on the data input by the input unit 11.

  When the motion control device 10 reduces the load applied by the dancer roller 2, the rod 8b is moved so that the distance L between the weight 7 and the fulcrum 9 is increased. As the distance L is increased, the load applied by the dancer roller 2 is relatively smaller than that before the distance L is changed due to the lever principle of the fulcrum 9.

  On the other hand, when the motion control device 10 increases the load applied by the dancer roller 2, the rod 8b is moved so that the distance L between the weight 7 and the fulcrum 9 is decreased. As the distance L becomes smaller, the load applied by the dancer roller 2 is relatively larger than before the distance L is changed due to the lever principle of the fulcrum 9.

  As described above, the load applied to the long member A can be quickly changed simply by shifting the position of the weight 7, so that complicated weight replacement work is not required even if the specification of the long member A changes. Therefore, it is possible to smoothly switch the setting of the device (load load by the weight 7) according to the specifications of the long member A. Accordingly, the work can be simplified and lightened, and the productivity can be improved.

  A person can directly change the position of the weight 7 by operating the weight position adjusting mechanism 8 without providing the operation control unit 10 and the input means 11. However, by providing the operation control device 10 and the input means 11, an input can be made. By simply inputting necessary data to the means 11, the setting of the apparatus can be switched according to the specifications of the long member A. Therefore, the work can be simplified and lightened. Further, by providing the storage unit 12, if the configuration is such that data relating to the appropriate range corresponding to the long member A to be conveyed is automatically input from the storage unit 12 to the operation control unit 10 through the input means 11, the long member The switching operation of the apparatus setting according to the specification of A can be further simplified and lightened. It becomes more and more advantageous for productivity improvement.

  FIG. 5 illustrates another embodiment of the conveyance assisting device 1. This embodiment differs from the previous embodiment in that a weight 7 is arranged between the dancer roller 2 and the fulcrum 9.

  In this embodiment, a weight 7 is connected to an arm portion 5 that connects the dancer roller 2 and the fulcrum 9 via an actuator 8. The weight 7 is moved along the arm portion 5 by the actuator 8. A counterweight 13 is attached to the side opposite to the dancer roller 2 with respect to the fulcrum 9.

  The process of appropriately maintaining the slack S of the long member A using this embodiment is the same as the process shown in the previous embodiment. The difference from the previous embodiment is the movement of the weight 7 when the load applied by the dancer roller 2 is changed. Hereinafter, this movement will be described.

  In this embodiment, when the motion control device 10 reduces the load applied by the dancer roller 2, the weight 7 is moved so that the distance L between the weight 7 and the fulcrum 9 becomes small. As the distance L is increased, the load applied by the dancer roller 2 is relatively smaller than that before the distance L is changed due to the lever principle of the fulcrum 9.

  On the other hand, when the motion control device 10 increases the load applied by the dancer roller 2, the weight 7 is moved so that the distance L between the weight 7 and the fulcrum 9 increases. As the distance L becomes smaller, the load applied by the dancer roller 2 is relatively larger than before the distance L is changed due to the lever principle of the fulcrum 9.

  In the previous embodiment, the weight 7 is disposed in a region opposite to the arm portion 5 with respect to the fulcrum 9, and in this embodiment, the weight 7 is disposed in the region on the same side as the arm portion 5 with respect to the fulcrum 9. . The two embodiments are different in that the moving direction of the weight 7 is reversed when changing the load applied by the dancer roller 2, but the obtained effects are the same. Therefore, for example, a preferred embodiment may be selected depending on the space situation of the installation place of the conveyance auxiliary device 1.

  The present invention also has the advantage that it can be installed without significant modifications to the existing dancer roller 2.

DESCRIPTION OF SYMBOLS 1 Conveyance assistance apparatus 2 Dancer roller 3 Detector 4 Speed control part 5 Arm part 6 Frame part 7 Weight 8 Actuator (weight position adjustment mechanism)
8a cylinder 8b rod 9 fulcrum 9a support shaft core 10 operation control unit 11 input means 12 storage unit 13 counterweight A long member B1, B2 conveying device

Claims (7)

A dancer roller that is installed between two conveying devices arranged in series at intervals in the conveying direction and is placed on a long member conveyed by these conveying devices; In a long-member conveyance auxiliary device comprising a detector that detects vertical fluctuations, and a speed control unit that controls at least one conveyance speed of the conveyance device based on detection data by the detector,
An arm portion that pivots up and down around a fulcrum and pivotally supports the dancer roller, a weight that is directly or indirectly connected to the arm portion, and a weight that approaches and separates from the support axis of the fulcrum A long-member conveyance auxiliary device comprising a weight position adjusting mechanism.   The long member conveying auxiliary device according to claim 1, wherein the weight is disposed in a region opposite to the arm portion with respect to the fulcrum.   The long member conveying auxiliary device according to claim 1, wherein the weight is disposed in a region on the same side as the arm portion with respect to the fulcrum.   An input unit for inputting data to the operation control unit of the weight position adjusting mechanism is provided. Based on the data input by the input unit, the distance of the fulcrum from the support axis is adjusted to an appropriate range. The conveyance auxiliary device for a long member according to any one of claims 1 to 3.   For each specification of the long member, the storage unit stores in advance an appropriate range of the distance from the support axis of the fulcrum of the weight, and stores the data regarding the appropriate range corresponding to the long member to be conveyed 5. The apparatus for assisting conveyance of a long member according to claim 4, wherein the apparatus automatically inputs the operation control unit from the input unit through the input unit.   The long member conveyance auxiliary device according to any one of claims 1 to 5, wherein the weight position adjusting mechanism includes an actuator attached to a rod for moving the weight forward and backward.   The conveyance auxiliary device for a long member according to any one of claims 1 to 6, wherein unvulcanized rubber is used as the long member.

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