Marking device, marking system, and method of use thereof

Abstract

To provide a stamping device and the like which can contribute to enabling one worker to efficiently execute scribing work and stamping work without being limited to a specific place.SOLUTION: A stamping device comprises: a base plate; a plurality of wheels arranged to be rotatable with respect to the base plate and configured to be rollable in a tube axis direction on an outer peripheral surface of a tube; an optical distance meter fixed to the base plate and configured to measure and display a distance from a reflection surface of a reflection plate arranged to match an end face of the tube to a predetermined reference position, using optical means; a stamping machine fixed directly or indirectly to the base plate, stamps on the outer peripheral surface of the tube, and arranged so that a stamping reference position matches the predetermined reference position; and a controller fixed to the base plate and configured to receive stamping information from an operation terminal and to control stamping operation of the stamping machine on the basis of the received stamping information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an embossing device, an embossing system, and a method for using the same. [Background technology]

[0002] In piping work, in order to install pipes on site according to the design drawings, it is necessary to cut standard-length pipes (pipe 1 in FIG. 13; for example, length: 5.5 m, 11 m, etc., nominal diameter: 150 A, 200 A, 400 A, 4 B, 6 B, 8 B, etc.) shipped from the factory to the required length (1 a, 1 b in FIG. 16). Before cutting the standard-length pipe, the outer surface of the standard-length pipe is marked with the cutting position (20 in FIG. 13) and the start positions of groove processing (21, 22 in FIG. 13; positions at a predetermined distance on both sides of the cutting position 20 as the center) for forming grooves for welding when the pipes are butted together (23, 24 in FIG. 16). During marking work, the length from the end of the standard length pipe (including the remaining standard length pipe after cutting) must be measured to determine the marking position, but when the length exceeds the reach of a person, it is not possible for one person to determine the marking position, so two people work together to use a tape measure to mark the cutting position and the starting position for bevel processing.

[0003] Furthermore, when standard length pipes are shipped from the factory, a stencil indicating the material, pipe diameter, and charge number (melt code number) is printed on the outer surface. When standard length pipes are cut, some of the cut pipes will not have a stencil, but it is necessary to be able to identify the stencil for each pipe, so before cutting the standard length pipe, the same stencil as that printed on the standard length pipe is transcribed onto each section that will become a pipe in the future.

[0004] Furthermore, when the standard length pipe is cut, it is necessary to be able to identify which part on the design drawing the cut pipe corresponds to, so before cutting the standard length pipe, each section that will become the pipe in the future is stamped with a part number that is the same as the part number corresponding to the pipe on the design drawing. Since the stamping work cannot be done until the cutting position has been determined, it is done after the scribing work. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 5-23475 [Patent Document 2] Japanese Patent Application Publication No. 11-57855 Summary of the Invention [Problem to be solved by the invention]

[0006] The following analysis is provided by the present inventors.

[0007] However, with the method of marking work by two people using a tape measure, it is difficult to carry out the marking work when there is a shortage of personnel and it is not possible to form pairs of two people. Also, if the stamping work is carried out after the marking work, it is difficult to carry out the work efficiently.

[0008] Therefore, it is conceivable to use a stamping device such as those described in Patent Documents 1 and 2 to perform scribing and stamping operations consecutively on a fixed-length pipe. However, the stamping devices described in Patent Documents 1 and 2 are much larger than the steel billets that are to be stamped, and are large-scale devices that are installed in factories, so the locations where scribing and stamping operations can be performed consecutively are limited. Furthermore, the stamping devices described in Patent Documents 1 and 2 increase the burden of transporting fixed-length pipes to the location where the stamping device is installed, so even if it is possible to transport the fixed-length pipes and perform scribing and stamping operations consecutively, it is difficult to proceed with the work efficiently overall.

[0009] The main objective of the present invention is to provide an embossing device, an embossing system, and a method for using the same that can contribute to enabling a single worker to efficiently perform marking and embossing work without being limited to a specific location. [Means for solving the problem]

[0010] Stamping related to the first perspectiveDevice teeth, A base plate and a plurality of wheels rotatably disposed on the base plate and configured to roll on the outer circumferential surface of the pipe in the pipe axial direction; an optical distance meter that is fixed to the base plate and configured to measure and display the distance from a reflective surface of a reflector that is aligned with the end face of the pipe to a predetermined reference position using optical means; an engraving machine fixed directly or indirectly to the base plate, which engraves the outer peripheral surface of the pipe and is arranged so that an engraving reference position is aligned with the predetermined reference position; a controller fixed to the base plate, configured to receive embossing information from an operation terminal and control the embossing operation of the embossing machine based on the received embossing information; Equipped with. Furthermore, the wheel is configured so that the inner diameter of the axle is smaller than the outer diameter. The marking device according to the first aspect of the present invention is a first bracket fixed to the base plate and configured to have a groove extending perpendicular to an upper surface of the base plate; a second bracket fixed to the stamping machine; a knurled knob configured to threadably engage with the second bracket through the groove and to allow the position of the second bracket to be adjusted along the groove; Further provided are: The marking device according to the second aspect of the first aspect is a weight member fixed to a predetermined position on the base plate to suppress vibrations during operation of the marking machine; The weight member is fixed to the base plate in a juxtaposed relationship with the stamping machine.

[0011] The time-stamping system according to the second aspect is Part 1 or 2 the embossing device according to the present invention, a jig for the reflector having the reflector and configured to be detachably fixed to the tube with the reflective surface of the reflector aligned with the end face of the tube, and the operation terminal configured to be able to transmit the embossing information to the controller in the embossing device.

[0012] A method of using the marking system according to a third aspect is the method of using the marking system according to the second aspect, further comprising: attaching the reflector to the end surface of the pipe. of The reflector is attached to the pipe so that the reflective surface of the reflector of the jig is aligned with the pipe. of a step of attaching and fixing a jig; a step of installing the marking device on the pipe; and a step of measuring the reflector by the optical distance meter of the marking device. of The method includes a step of moving the stamping device to a predetermined position on the pipe while measuring the distance from the reflective surface of the reflector of the jig to the predetermined reference position of the optical rangefinder, and a step of transmitting stamping information from the operation terminal to the controller of the stamping device to operate the stamping machine to stamp. [Effects of the Invention]

[0013] The first to third aspects can contribute to enabling one worker to efficiently perform marking and stamping work without being limited to a specific location. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view schematically showing an example of a usage mode of an engraving device and a reflecting plate jig in an engraving system according to a first embodiment. FIG. [Figure 2] 1 is a plan view showing a schematic configuration of an embossing device in an embossing system according to a first embodiment. [Figure 3] 1 is a front view showing a schematic configuration of an embossing device in an embossing system according to a first embodiment. [Figure 4] 1 is a right side view showing a schematic configuration of an embossing device in an embossing system according to a first embodiment. FIG. [Figure 5] 1 is a left side view schematically showing the configuration of an embossing device in an embossing system according to a first embodiment. [Figure 6] 1 is a rear view schematically showing the configuration of an embossing device in an embossing system according to a first embodiment. [Figure 7] 2. FIG. 3 is a cross-sectional view taken along line XX′ in FIG. 2, schematically illustrating the configuration of the embossing device in the embossing system according to the first embodiment. [Figure 8]3 is a cross-sectional view taken along line YY' in FIG. 2, schematically illustrating the configuration of the embossing device in the embossing system according to the first embodiment. [Figure 9] 1 is a block diagram showing a schematic circuit configuration of an embossing device and an operation terminal in an embossing system according to a first embodiment. [Figure 10] 3 is a partial perspective view schematically showing the operation of a brake of the embossing device in the embossing system according to the first embodiment. FIG. [Figure 11] 1 is a plan view schematically showing the configuration of a reflector jig in the marking system according to the first embodiment. FIG. [Figure 12] 2 is a right side view schematically showing the configuration of a reflector jig in the marking system according to the first embodiment. FIG. [Figure 13] FIG. 10 is a plan view schematically showing an example of marking and marking on a pipe. [Figure 14] 1 is a side view schematically showing an example of use of an engraving device and a reflecting plate jig in the engraving system according to the first embodiment. FIG. [Figure 15] 1 is a flowchart showing a schematic diagram of a method of using the time-stamping system according to the first embodiment. [Figure 16] FIG. 10 is a plan view schematically illustrating an example of a pipe after cutting the pipe to form a groove. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments will be described with reference to the drawings. Note that, when reference symbols are used in this application, they are intended solely to facilitate understanding and are not intended to limit the present invention to the illustrated embodiments. Furthermore, the following embodiments are merely illustrative and do not limit the present invention. Furthermore, connection lines between blocks in the drawings, etc. referred to in the following description include both bidirectional and unidirectional lines. Unidirectional arrows are used to schematically indicate the flow of the main signal (data) and do not exclude bidirectionality. Furthermore, although not explicitly shown, input and output ports exist at the input and output ends of each connection line in the circuit diagrams, block diagrams, internal configuration diagrams, connection diagrams, etc. disclosed in this application. The same applies to input / output interfaces.

[0016] [Embodiment 1] The stamping system according to the first embodiment will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing an example of a usage mode of an stamping device and a reflecting plate jig in the stamping system according to the first embodiment. FIG. 2 is a plan view schematically showing the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 3 is a front view schematically showing the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 4 is a right side view schematically showing the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 5 is a left side view schematically showing the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 6 is a rear view schematically showing the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 7 is a cross-sectional view taken along line XX' in FIG. 2, which schematically shows the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 8 is a cross-sectional view taken along line YY' in FIG. 2, which schematically shows the configuration of the stamping device in the stamping system according to the first embodiment. FIG. 9 is a block diagram schematically showing the circuit configuration of the stamping device in the stamping system according to the first embodiment. Fig. 10 is a partial perspective view schematically showing the operation of the brake of the stamping device in the stamping system according to embodiment 1. Fig. 11 is a plan view schematically showing the configuration of the reflecting plate jig in the stamping system according to embodiment 1. Fig. 12 is a right side view schematically showing the configuration of the reflecting plate jig in the stamping system according to embodiment 1. Fig. 13 is a plan view schematically showing an example of marking and engraving on a pipe. Fig. 14 is a side view schematically showing an example of using the stamping device and reflecting plate jig in the stamping system according to embodiment 1.

[0017] The stamping device 100 stamps a mark (e.g., marking portion 2 in FIG. 13) and an inscription (e.g., engraving portion 3 in FIG. 13) at a predetermined position on a pipe 1 (see FIG. 1). Here, the pipe 1 includes not only a standard-length pipe at the time of factory shipment, but also a pipe with a portion of the piping cut off. The stamping device 100 has a function of being movable along the axial direction on the outer surface of the pipe 1 (see FIG. 14). The stamping device 100 can be lightweight enough to be carried by a single user. The stamping device 100 has a function of calculating the distance 11 from the reference position 156 of the optical distance meter 150 to the reflective surface of the reflector 201 based on the difference between the wavelength of the reflected light (e.g., laser) irradiated onto the reflective surface of the reflector 201 of the reflector jig 200 positioned on the end face of the pipe 1 and the wavelength of the internal reference (see FIG. 1). The main components of the stamping device 100 include a base plate 110, shaft members 112a and 112b, wheels 113a to 113d, levels 114a and 114b, handles 115a and 115b, brackets 120 and 121, knurled knobs 122a and 122b, a stamping machine 130, a weight member 140, an optical rangefinder 150, a stopper 160, and a controller 170 (see Figures 2 to 10).

[0018] Here, in the marking section 2 of the pipe 1, a circular arrow mark is stamped at the cutting position, and an arrow mark is stamped at the start position of bevel processing (positions at a predetermined distance on both sides in the longitudinal direction from the cutting position) for forming a groove for welding when the pipes are butted together (see Figure 13). In addition, in the marking section 3 of the pipe 1, for example, the material is stamped in the first line, the charge number (number at the time of shipment from the factory) in the second line, and a mark (stencil) relating to the part number in the third line (see Figure 13).

[0019] The base plate 110 is a plate-shaped member (see FIGS. 1 to 8 and 10). Shaft members 112a and 112b are attached and fixed to predetermined positions on the bottom surface of the base plate 110. Levels 114a and 114b, handles 115a and 115b, a bracket 120, a weight member 140, an optical rangefinder 150, and a controller 170 are attached and fixed to predetermined positions on the top surface of the base plate 110. The base plate 110 has a window 111 that opens to the main body. Some of the components of the engraving machine 130 are inserted through the window 111. A stopper 160 is attached to a predetermined position on the base plate 110 so that it can move axially (perpendicular to the surface of the base plate 110) by rotation.

[0020] The shaft members 112a and 112b are axial members fixed at predetermined positions on the bottom surface of the base plate 110 (see FIGS. 2, 3, 6, 7, and 10). The shaft members 112a and 112b are spaced apart from each other. The axes of the shaft members 112a and 112b are arranged substantially parallel to each other. Wheels 113a and 113b are rotatably attached to both ends of the shaft member 112a. Wheels 113c and 113d are rotatably attached to both ends of the shaft member 112b.

[0021] Wheels 113a-113d are wheel-shaped members that roll along the axial direction on the outer circumferential surface of tube 1 (see FIGS. 1-6 and 10). Wheels 113a and 113b are rotatably attached to both ends of shaft member 112a. Wheels 113c and 113d are rotatably attached to both ends of shaft member 112b. Wheels 113a-113d are rotatably disposed on base plate 110 via shaft members 112a and 112b. The outer circumferential surfaces (contact surfaces) of wheels 113a-113d are configured so that the diameter of the inner side of the rotation axis (the main body side of shaft members 112a and 112b) is smaller than the outer diameter. This improves the linearity of marking device 100 along the outer circumferential surface of tube 1 in the axial direction. An elastic material can be used for at least the outer circumferential surfaces of wheels 113a-113d. This makes it possible to prevent the wheels 113a to 113d from slipping relative to the pipe 1.

[0022] The levels 114a and 114b are instruments for measuring the horizontality of the base plate 110 (see FIGS. 1 to 4, 6, 7, and 10). The levels 114a and 114b are attached and fixed to predetermined positions on the upper surface of the base plate 110 (for example, positions near the shaft members 112a and 112b).

[0023] The handles 115a and 115b are members to be gripped by hand and make it easy to handle the marking device 100. The handles 115a and 115b are attached and fixed to predetermined positions on the upper surface of the base plate 110 (for example, positions at both ends in the longitudinal direction).

[0024] Bracket 120 is a support member for fixing bracket 121, which is fixed to stamping machine 130, to base plate 110 in an adjustable position (see FIGS. 1 to 3, 5, 6, and 8). Bracket 120 is attached and fixed to the base plate 110 at a position near window 111 on the top surface of base plate 110. Bracket 120 has a portion that extends above the top surface of base plate 110, and this portion has grooves 123a and 123b. Grooves 123a and 123b are through openings that fix bracket 121 so that it can be moved up and down by rotating and tightening knurled knobs 122a and 122b. Grooves 123a and 123b make stamping machine 130 height adjustable, allowing it to be used with standard-length pipes of various diameters (e.g., 150A to 400A).

[0025] Bracket 121 is a support member for fixing stamping machine 130 to bracket 120 so that its position can be adjusted (see FIGS. 1 to 3, 5, 6, and 8). Bracket 121 is fixed to stamping machine 130. Bracket 121 is fixed to bracket 120 so that it can move up and down by rotating and fastening knurled knobs 122a and 122b inserted into grooves 123a and 123b.

[0026] The knurled knobs 122a and 122b are fastening members for fixing the bracket 121 to the bracket 120 so that the position of the bracket 121 can be adjusted. When the knurled knobs 122a and 122b are loosened, the bracket 121 can be moved up and down along the grooves 123a and 123b, and when the knurled knobs 122a and 122b are tightened, the bracket 121 is fixed to the bracket 120.

[0027] The stamping machine 130 is a device that stamps a mark (e.g., scribing unit 2 in FIG. 13) and a mark (e.g., marking unit 3 in FIG. 13) at a predetermined position on the pipe 1 (see FIGS. 1 to 9). The stamping machine 130 is fixedly attached to a bracket 121. The stamping machine 130 is supported on the base plate 110 via the bracket 121, knurled knobs 122a and 122b, and the bracket 120. The stamping machine 130 may also be supported directly on the base plate 110. The stamping machine 130 can be moved up and down relative to the base plate 110 by loosening the knurled knobs 122a and 122b and moving it up and down along the grooves 123a and 123b of the bracket 120. Some of the components of the stamping machine 130 are inserted through the window 111 of the base plate 110. The stamping machine 130 stamps the pipe 1 disposed below the base plate 110. The stamping machine 130 is connected to the controller 170 so as to be able to communicate (by wire or wireless communication). The stamping machine 130 stamps under the control of the controller 170. The stamping reference position (e.g., stamping start position) of the stamping machine 130 is arranged to coincide with the reference position 156 of the optical rangefinder 150.

[0028] The weight member 140 is a member for suppressing vibrations that occur when the stamping machine 130 is in operation (see FIGS. 2 to 5 and 8). The weight member 140 also serves to balance the weight of the stamping device 100. The weight member 140 is disposed near the stamping machine 130. The weight member 140 is attached and fixed in a position near the window portion 111 on the top surface of the base plate 110, on the opposite side of the attachment position of the bracket 120 with the window portion 111 in between.

[0029] The optical rangefinder 150 is a measuring instrument that uses optical means to measure the distance from a reference position 156 to a target (here, the reflective surface of the reflector 201 of the reflector jig 200 positioned on the end face of the pipe 1) (see FIGS. 1 to 5 and 9). The optical rangefinder 150 mainly comprises a light output unit 151, a light receiving unit 152, an operation unit 153, a display unit 154, and a control unit 155. The light output unit 151 is a functional unit that outputs light of a predetermined wavelength (e.g., laser light). The light receiving unit 152 is a functional unit that irradiates light (e.g., laser) onto the reflective surface of the reflector 201 of the reflector jig 200 positioned on the end face of the pipe 1, receives the reflected light, and detects the wavelength of the reflected light. The operation unit 153 is a functional unit that receives operations by the user. The display unit 154 is a functional unit that displays the measured distance, etc. The control unit 155 controls each of the functional units 151 to 154 and calculates the distance 11 from the reference position 156 of the optical rangefinder 150 to the reflecting surface of the reflector 201 from the difference between the wavelength of the reflected light detected by the light receiving unit 152 and the wavelength of an internal reference.

[0030] Stopper 160 is a member that restricts the movement of embossing device 100 (see Figures 1, 2, 4 to 7, and 10). Stopper 160 is attached to a predetermined position on base plate 110 so that it can move in the axial direction (perpendicular to the surface of base plate 110) by rotation. Stopper 160 penetrates base plate 110, and a grounding member 161 is attached and fixed to the tip below base plate 110. Grounding member 161 restricts the movement of embossing device 100 by being pressed against the outer peripheral surface of pipe 1.

[0031] The controller 170 is a device that controls the engraving machine 130 (see FIGS. 1 to 7 and 9). The controller 170 is attached and fixed at a predetermined position on the upper surface of the base plate 110. The controller 170 is connected to the engraving machine 130 so as to be able to communicate (wired communication or wireless communication). The controller 170 is connected to the operation terminal 300 so as to be able to communicate (wireless communication or wired communication). The controller 170 receives engraving information related to the marking and stamping from the operation terminal 300, and controls the engraving operation of the engraving machine 130 based on the received engraving information.

[0032] The reflector jig 200 is a jig that includes a reflector 201 that reflects light from the optical distance meter 150 of the marking device 100 at a position aligned with the end face of the pipe 1 (see FIGS. 1, 11, 12, and 14). The reflector jig 200 is configured to be detachably fixed to the pipe 1. The reflector jig 200 mainly includes the reflector 201, brackets 202, 203, and 204, a handle 205, a level 206, and mounting screws 207.

[0033] The reflector 201 is a plate-like member that reflects light from the optical rangefinder 150 (see FIGS. 1 and 11). The reflector 201 is attached and fixed to a bracket 202 so that the end face of the tube 1 and the reflective surface of the reflector 201 coincide with each other when the reflector jig 200 is fixed to the tube 1.

[0034] The bracket 202 is a member that supports the reflector 201 (see Figures 1, 11, and 12). When the reflector jig 200 is fixed to the pipe 1, the bracket 202 abuts against the end face of the pipe 1, and positions the reflector jig 200 relative to the end face of the pipe 1. The reflector 201 is attached and fixed so that the abutting surface of the bracket 202 that abuts against the end face of the pipe 1 and the reflecting surface of the reflector 201 are flush with each other.

[0035] Bracket 203 is a member that abuts against the outer peripheral surface of pipe 1 when reflector jig 200 is fixed to pipe 1, and positions reflector jig 200 relative to the outer peripheral surface of pipe 1 (see Figures 1, 11, and 12). Bracket 203 is attached and fixed to bracket 202. A handle 205 and a level 206 are attached and fixed at predetermined positions on the top surface of bracket 203.

[0036] The bracket 204 is a member that is disposed radially inward from the inner peripheral surface of the pipe 1 when the reflector jig 200 is fixed to the pipe 1 (see FIG. 12). The bracket 204 is threadedly engaged with the mounting screw 207 so that the mounting screw 207 passes through the bracket 204.

[0037] The handle 205 is a member that can be gripped by hand to facilitate handling of the reflector jig 200 (see FIGS. 1, 11, and 12). The handle 205 is attached and fixed to a predetermined position on the top surface of the bracket 203.

[0038] The level 206 is an instrument for measuring the horizontality of the bracket 203 (see FIGS. 1, 11, and 12). The level 206 is attached and fixed to a predetermined position on the top surface of the bracket 203.

[0039] The mounting screw 207 is a screw for attaching and fixing the reflector jig 200 to the pipe 1 (see FIG. 12). The mounting screw 207 is threadedly engaged with the bracket 204 so as to pass through the bracket 204. By tightening the mounting screw 207, the tip of the mounting screw 207 can be pressed against the inner surface of the pipe 1. By loosening the mounting screw 207, the tip of the mounting screw 207 can be released from the inner surface of the pipe 1, allowing the reflector jig 200 to be removed from the pipe 1.

[0040] The operation terminal 300 is a terminal for operating the embossing machine 130 via the controller 170 (see FIGS. 1 and 9). For example, a smartphone, a tablet terminal, or a notebook personal computer can be used as the operation terminal 300. The operation terminal 300 is connected to the controller 170 so as to be able to communicate (wireless communication or wired communication). The operation terminal 300 receives input of embossing information related to marking and stamping for controlling the embossing machine 130, and transmits the input embossing information to the controller 170.

[0041] Next, a method of using the embossing system according to embodiment 1 will be described with reference to the drawings. Fig. 15 is a flow chart that schematically shows a method of using the embossing system according to embodiment 1. Please refer to Figs. 1 to 14 for the configurations of the embossing device, reflector jig, and operation terminal.

[0042] First, the reflecting surface of the reflector 201 of the reflector jig 200 is aligned with the end face of the pipe 1, and the reflector jig 200 is attached and fixed to the pipe 1 so that the level 206 of the reflector jig 200 indicates horizontality (step A1).

[0043] Next, the stamping device 100 is placed on the pipe 1 so that the levels 114a and 114b of the stamping device 100 indicate the horizontal position (step A2).

[0044] Next, while measuring the distance 11 from the reflecting surface of the reflector 201 of the reflector jig 200 to the reference position 156 of the optical distance meter 150 of the stamping device 100 using the optical distance meter 150 of the stamping device 100, the stamping device is moved to the marking position (cutting position, groove processing start position) of the pipe 1 so that the spirit levels 114a, 114b of the stamping device 100 indicate horizontality (step A3).

[0045] Next, stopper 160 of stamping device 100 is applied so that grounding member 161 of stamping device 100 contacts (presses) pipe 1 at the marking position (cutting position, bevel processing start position) on pipe 1 (step A4).

[0046] Next, marking information relating to the marking is transmitted from the operation terminal 300 to the controller 170 of the marking device 100 to operate the marking machine 130, and marking (marking relating to the cutting position and the groove processing start position) is performed (step A5). Note that marking may be performed by separately aligning the cutting position and the groove processing start position.

[0047] Next, at the marking position (cutting position, bevel processing start position) on the pipe 1, the stopper 160 of the stamping device 100 is released so that the ground contact member 161 of the stamping device 100 moves away from the pipe 1 (step A6).

[0048] Next, the marking device 100 is moved to the marking position on the tube 1 (step A7).

[0049] Next, stopper 160 of stamping device 100 is applied so that grounding member 161 of stamping device 100 comes into contact (pressed) with pipe 1 at the marking position on pipe 1 (step A8).

[0050] Finally, the operation terminal 300 transmits the marking information to the controller 170 of the marking device 100 to operate the marking machine 130, and the marking is made (step A9). Note that although the process ends after step A9, if further marking and marking are to be made at another position, steps A3 to A9 will be carried out.

[0051] According to embodiment 1, by using the portable marking device 100, marking and stamping related to engraving can be performed in a single flow process, which contributes to enabling a single worker to efficiently perform marking and stamping work without being limited to a specific location.

[0052] Some or all of the above embodiments may be described as, but are not limited to, the following supplementary notes.

[0053] [Appendix 1] A base plate and a plurality of wheels rotatably disposed on the base plate and configured to roll on the outer circumferential surface of the pipe in the pipe axial direction; an optical distance meter that is fixed to the base plate and configured to measure and display the distance from a reflective surface of a reflector that is aligned with the end face of the pipe to a predetermined reference position using optical means; an engraving machine fixed directly or indirectly to the base plate, which engraves the outer peripheral surface of the pipe and is arranged so that an engraving reference position is aligned with the predetermined reference position; a controller fixed to the base plate, configured to receive embossing information from an operation terminal and control the embossing operation of the embossing machine based on the received embossing information; An engraving device comprising: [Appendix 2] a first bracket fixed to the base plate and configured to have a groove extending perpendicular to an upper surface of the base plate; a second bracket fixed to the stamping machine; a knurled knob configured to threadably engage with the second bracket through the groove and to allow the position of the second bracket to be adjusted along the groove; 2. The marking device of claim 1, further comprising: [Appendix 3] 3. The marking device according to claim 1, further comprising a weight member fixed to a predetermined position on the base plate. [Appendix 4] 4. The marking device according to any one of claims 1 to 3, further comprising a level fixed at a predetermined position on the base plate. [Appendix 5] 5. The marking device according to any one of claims 1 to 4, further comprising a handle fixed to the base plate. [Appendix 6] 6. The marking device according to any one of claims 1 to 5, wherein the wheel is configured so that the inner diameter of the rotation axis is smaller than the outer diameter. [Appendix 7] 7. The stamping device of claim 1, further comprising a stopper that is movably fixed to the base plate and configured to contact the outer surface of the tube to restrict movement of the stamping device on the tube. [Appendix 8] An engraving device according to any one of appendices 1 to 6; the reflector jig having the reflector and configured to be detachably fixed to the pipe so that the reflecting surface of the reflector is aligned with the end face of the pipe; an operation terminal configured to be able to transmit the embossing information to the controller of the embossing device; A time-stamping system comprising: [Appendix 9] 9. The marking system of claim 8, wherein the reflector jig includes a level. [Appendix 10] A method of using the time-stamping system according to claim 8 or 9, comprising: a step of attaching and fixing the reflector jig to the pipe so that the reflecting surface of the reflector of the reflector jig is aligned with the end surface of the pipe; placing the stamping device on the pipe; moving the marking device to a predetermined position on the pipe while measuring the distance from the reflecting surface of the reflector of the reflector jig to the predetermined reference position of the optical distance meter using the marking device; a step of transmitting embossing information from the operation terminal to the controller of the embossing device to operate the embossing machine and emboss the information; How to use the time-stamping system, including:

[0054] The disclosures of the above-cited patent documents are incorporated herein by reference and may be used as the basis or part of the present invention, as necessary. Modifications and adjustments of the embodiments and examples are possible within the scope of the entire disclosure of the present invention (including the claims and drawings), and further based on the basic technical concept thereof. Furthermore, various combinations and selections (or non-selections, as necessary) of the various disclosed elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, etc.) are possible within the scope of the entire disclosure of the present invention. In other words, the present invention naturally includes various modifications and alterations that would be possible by a person skilled in the art in accordance with the entire disclosure and technical concept, including the claims and drawings. Furthermore, with regard to the numerical values ​​and numerical ranges described in this application, any intermediate values, lower values, and smaller ranges are deemed to be included, even if not explicitly stated. Furthermore, the disclosures of the above-cited documents, when used in part or in whole in combination with the disclosures herein as part of the disclosure of the present invention, in accordance with the spirit of the present invention, are also deemed to be included in (belong to) the disclosures of this application. [Explanation of symbols]

[0055] 1 tube 1a 1st pipe 1b 2nd pipe 2. Marking section 3 Engraved part 10 light path 11 distance 20 Cutting position 21, 22 Beveling start position 100 Stamping device 110 base plate 111 Window 112a, 112b shaft members 113a~113d Wheels 114a, 114b Level 115a, 115b handle 120, 121 bracket 122a, 122b Knurled knob 123a, 123b Groove 130 Stamping machine 140 Weight member 150 optical rangefinder 151 Optical output section 152 Light receiving part 153 Operation section 154 Display section 155 Control Unit 156 Reference position 160 Stopper 161 Grounding member 170 Controller 200 Reflector jig 201 Reflector 202, 203, 204 brackets 205 Handle 206 Level 207 Mounting screw 300 Operation terminal

Claims

1. A base plate and a plurality of wheels rotatably disposed on the base plate and configured to roll on the outer circumferential surface of the pipe in the pipe axial direction; an optical distance meter that is fixed to the base plate and configured to measure and display the distance from a reflective surface of a reflector that is aligned with the end face of the pipe to a predetermined reference position using optical means; an engraving machine fixed directly or indirectly to the base plate, which engraves the outer peripheral surface of the pipe and is arranged so that an engraving reference position is aligned with the predetermined reference position; a controller fixed to the base plate, configured to receive embossing information from an operation terminal and control the embossing operation of the embossing machine based on the received embossing information; Equipped with The wheel is configured such that the inner diameter of the axle is smaller than the outer diameter, a first bracket fixed to the base plate and configured to have a groove extending in a direction perpendicular to an upper surface of the base plate; a second bracket fixed to the stamping machine; a knurled knob configured to threadably engage with the second bracket through the groove and to allow the position of the second bracket to be adjusted along the groove; Further provided with Stamping device.

2. A base plate; a plurality of wheels rotatably disposed on the base plate and configured to roll on the outer circumferential surface of the pipe in the pipe axial direction; an optical distance meter that is fixed to the base plate and configured to measure and display the distance from a reflective surface of a reflector that is aligned with the end face of the pipe to a predetermined reference position using optical means; an engraving machine fixed directly or indirectly to the base plate, which engraves the outer peripheral surface of the pipe and is arranged so that an engraving reference position is aligned with the predetermined reference position; a controller fixed to the base plate, configured to receive embossing information from an operation terminal and control the embossing operation of the embossing machine based on the received embossing information; Equipped with The wheel is configured such that the inner diameter of the axle is smaller than the outer diameter, a weight member fixed to a predetermined position on the base plate to suppress vibrations during operation of the marking machine; The weight member is fixed to the base plate in a juxtaposed relationship with the stamping machine. Stamping device.

3. 2. The marking device according to claim 1, further comprising a weight member fixed to a predetermined position on said base plate to suppress vibrations during operation of said marking machine.

4. 4. The marking device according to claim 3, wherein the weight member is fixed to the base plate in a juxtaposed relationship with the marking machine in the vicinity of the base plate.

5. 5. The marking device according to claim 1, further comprising a level fixed at a predetermined position on the base plate.

6. The marking device according to claim 1 , further comprising a handle fixed to the base plate.

7. 7. The marking device according to claim 1, further comprising a stopper movably fixed to the base plate and configured to contact the outer peripheral surface of the tube to restrict movement of the marking device on the tube.

8. The marking device according to any one of claims 1 to 7, a jig for the reflector, the jig having the reflector and configured to be detachably fixed to the pipe so that the reflective surface of the reflector is aligned with the end face of the pipe; an operation terminal configured to be able to transmit the embossing information to the controller of the embossing device; A time-stamping system comprising:

9. The marking system of claim 8 , wherein the fixture for the reflector includes a level.

10. A method of using the time-stamping system according to claim 8 or 9, comprising: a step of attaching and fixing the reflector jig to the pipe so that the reflective surface of the reflector of the reflector jig is aligned with the end surface of the pipe; placing the stamping device on the pipe; a step of moving the embossing device to a predetermined position on the pipe while measuring the distance from the reflective surface of the reflector of the reflector jig to the predetermined reference position of the optical distance meter using the optical distance meter of the embossing device; a step of transmitting embossing information from the operation terminal to the controller of the embossing device to operate the embossing machine and emboss the information; How to use the time-stamping system, including:

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