CN108871294B

CN108871294B - Plug-in type electric paying-off device

Info

Publication number: CN108871294B
Application number: CN201810667541.8A
Authority: CN
Inventors: 夏春; 剪元香; 李和平
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2020-10-23
Anticipated expiration: 2038-06-26
Also published as: CN108871294A

Abstract

The invention relates to a plug-in type electric paying-off device, which comprises a ruler rod and a plurality of electric line printing devices, wherein the ruler rod is of a multi-section structure and comprises a plurality of sections of ruler rods, two adjacent sections of ruler rods are connected in a plug-in mode, the end part of one ruler rod is provided with a cavity and a positioning hole, the corresponding end of the other ruler rod is provided with a plug-in rod, the plug-in rod is provided with a positioning piece, the plug-in rod is inserted into the cavity, and the positioning piece is locked in the positioning hole so as to fixedly connect the two sections of ruler rods; one end of the ruler rod is marked with an initial point mark corresponding to the longitudinal central line of the coke oven wall, and the other end of the ruler rod is also marked with an initial point mark. The ruler rod is of a multi-section structure and is connected in an inserting mode, so that the precision of the ruler rod is guaranteed, the working surface is convenient to convert, and the ruler rod is convenient to carry in daily life; the driving mechanism drives the cam to do rotary motion to push the connecting rod to move in a reciprocating mode, so that the seal strip of the line printing mechanism prints lines on the wall body, the line arrangement drawing is accurate and quick, the labor intensity is greatly reduced, and the working efficiency is improved.

Description

Plug-in type electric paying-off device

Technical Field

The invention relates to the technical field of furnace kiln construction, in particular to a plug-in type electric paying-off device.

Background

In the process of building the coke oven, in order to control all the brick joints of the coke oven building to be uniform, the pre-control is generally carried out in a way of drawing and arranging lines, and accumulated errors are eliminated. The conventional paying-off method is that the arrangement position line of each brick of a layer of wall is accurately engraved on a long ruler rod, then a ruler which is vertically and fixedly connected is installed at the engraved part, one or more persons scribe along the edge of the ruler by using a pencil after the paying-off ruler rod is manufactured, each brick sewing line needs manual paying-off, and paying-off efficiency is low. In order to solve the technical problem, the patent 'pay-off device for drawing alignment lines in the process of building a coke oven' (application number 201310386960.1) discloses a pay-off device for drawing alignment lines in the process of building a coke oven, which comprises a ruler rod, a ruler plate, a clamping device and a line rolling mechanism, wherein the ruler plate and the ruler rod are arranged in a sliding mode through a positioning pin, the line rolling mechanism is installed on the ruler plate through the clamping device, a pressing component is arranged above the ruler plate, the ruler plate drives the line rolling mechanism by operating the pressing component, and the alignment lines are placed on the wall body of the coke oven.

As shown in figure 1, the wall body of the large-scale coke oven is more than 18 meters long, the arrangement lines of four surfaces (a first surface, a second surface, a third surface and a fourth surface) of the wall body of the coke oven are respectively drawn by taking the longitudinal central line of the wall body of the coke oven as an initial point, the arrangement line paying-off of the wall body of only one side can be completed by the paying-off device at one time, if four paying-off devices are arranged, the four surfaces of the wall body are respectively drawn, after the daily workload is completed, the whole oven (60 walls) are paid off in batches, and the maximum working efficiency can be. However, if a paying-off device is adopted to pay off a wall independently in the building process, the drawing of the wall body on one side needs to be repeatedly turned on the coke oven to finish paying off of other three parts. The ruler rod of the pay-off device is long (9 meters), the repeated steering on the coke oven is difficult, and the pay-off efficiency is low.

In addition, when the top of the coke oven is built, firstly, the wall body of the observation hole is built, and then the positions of the coal charging hole masonry body, the track foundation masonry body and the like between two adjacent observation hole wall bodies are built, wherein the upper surface of the observation hole wall body has a slope from the longitudinal central line of the coke oven wall body to two sides, the horizontal distance needs to be converted into the slope distance by the control lines such as the central line, the side line and the like of the coal charging hole masonry body, the decimal exists in the actual measurement, and the larger deviation is easy to occur.

In view of this, the invention is needed to provide a pay-off device which is convenient for quickly paying off a single wall and can be horizontally placed on the slope surface of a fire hole wall on the top of a furnace, so as to avoid the problems of difficult repeated steering on a coke oven, low pay-off efficiency, deviation caused by pay-off size conversion and the like.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a plug-in type electric paying-off device aiming at the defects in the prior art, wherein the ruler rods of the plug-in type electric paying-off device are connected in a plug-in mode, so that the working surface can be conveniently converted and the daily carrying is convenient, and the ruler rods can be horizontally placed on a slope surface structure of a furnace top for paying off.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a plug-in type electric paying-off device comprises a ruler rod and a plurality of electric line printing devices arranged on the ruler rod, wherein the ruler rod is of a multi-section structure and comprises a plurality of sections of ruler rods, two adjacent sections of ruler rods are connected in a plug-in mode, a cavity and a positioning hole are formed in the end portion of one ruler rod, a plug-in rod is arranged at the corresponding end of the other ruler rod, a positioning piece is arranged on the plug-in rod and inserted into the cavity, and the positioning piece is locked in the positioning hole to enable the two sections of ruler rods to be fixedly connected; one end of the ruler rod is marked with an initial point mark corresponding to the longitudinal center line of the coke oven wall, and the other end of the ruler rod is also marked with an initial point mark.

In the scheme, the cross section of the ruler rod is rectangular, a sliding groove is formed in the side face of the ruler rod along the length direction, the electric line printing devices are installed in a matched mode with the sliding groove, and the positions of the electric line printing devices correspond to the arrangement positions of bricks on the wall body of the coke oven.

In the above scheme, the electric line printing device comprises a bracket, a line printing mechanism, a driving mechanism and a cam, wherein the main body structure of the bracket is an L-shaped driving mechanism bracket, the driving mechanism is fixedly installed at the lower end of the L-shaped driving mechanism bracket, and the cam is installed on an output shaft of the driving mechanism; the support further comprises an L-shaped line printing mechanism support, the upper end of the line printing mechanism support is fixedly connected with the upper end of the driving mechanism support, and the lower end of the line printing mechanism support is used for installing the line printing mechanism.

In the above scheme, the line printing mechanism comprises an ink box, a connecting rod and a driven base, the cross section of the connecting rod is rectangular, one end of the connecting rod is connected with the rear end of the ink box, the other end of the connecting rod penetrates through the lower end of a line printing mechanism support and is connected with the driven base, a spring is arranged between the line printing mechanism support and the driven base, the spring is sleeved on the connecting rod, and a roller is arranged on the driven base so that the rotating motion of the cam pushes the connecting rod to move in a reciprocating mode, and the roller of the driven base is always in contact with the cam under the action of the spring.

In the scheme, the ink bag is arranged inside the ink box, the shell of the ink box is provided with the plurality of ink adding holes, ink is conveniently added to the ink bag, the vertical seal strip is arranged at the front end of the ink box, and lines are conveniently printed on the wall body.

In the above scheme, electronic seal line device still includes fastening device, fastening device includes mounting panel, first lead screw and first knob, the one end of first lead screw with the upper end fixed connection of support, the other end of first lead screw with mounting panel fixed connection, first knob suit is on first lead screw, the mounting panel card is arranged in the spout of chi pole side, first knob can be on first lead screw rotary motion, adjusts the distance of first knob and mounting panel to the spout of pressing from both sides tight chi pole, the electronic seal line device of quick fixation, otherwise can loosen electronic seal line device.

In the scheme, one end of the ruler rod is provided with a wedge block with adjustable height, the wedge block is a U-shaped frame body with one side open, the wedge block can be fast clamped on the ruler rod, a dovetail groove is arranged below the frame body, a pluggable standard cushion block is arranged below the frame body, the upper surface of the cushion block is designed into a dovetail joint, the lower surface of the cushion block is designed into a dovetail groove, the dovetail joint is adopted between the cushion block and the frame body or between the cushion blocks for assembly, the lifting height of the end of the ruler rod is adjusted, and the ruler rod is placed horizontally.

In the scheme, one end of the ruler rod is provided with a height adjusting device capable of adjusting the height, the height adjusting device comprises a screw rod, a base and a handle, the screw rod vertically penetrates through the end part of the ruler rod, the handle is fixedly arranged at the top end of the screw rod, and the base is fixedly arranged at the bottom end of the screw rod; the ruler rod is fixedly provided with a screw thread or a nut matched with the screw rod, and the screw rod rotates relative to the ruler rod to drive the base to move up and down.

In the above scheme, a height adjusting head is further arranged between the bracket and the fastening mechanism, the height adjusting head comprises a vertical chute plate, a slider, a second lead screw and a second knob, one end of the second lead screw is connected with the slider, the other end of the second lead screw is connected with the vertical chute plate, the slider is clamped in the chute of the rule rod, the second knob is sleeved on the second lead screw, the second knob can rotate and move on the second lead screw, the distance between the second knob and the slider is adjusted, so that the chute of the rule rod is clamped, the electric line printing device is quickly fixed, and otherwise, the electric line printing device can be released; the mounting plate of the fastening mechanism is clamped in the vertical chute plate and can slide up and down along the vertical chute plate.

The invention has the beneficial effects that:

1. the ruler rod is of a multi-section structure, is connected in an inserting mode and locked by the locking pin or the collision bead, so that the precision of the ruler rod is guaranteed, and the working surface conversion and daily carrying are facilitated.

2. The driving mechanism drives the cam to do rotary motion to push the connecting rod to move in a reciprocating mode, so that the seal strip of the line printing mechanism prints lines on the wall body, the line arrangement drawing is accurate and quick, the labor intensity is greatly reduced, and the working efficiency is improved.

3. The second chi pole end has increased the voussoir or the height adjusting device of the altitude mixture control of being convenient for, is convenient for place unwrapping wire ware level on the domatic of seeing a fire hole wall, avoids converting into the slope distance with the horizontal distance, has the decimal in actual measurement, great deviation appears easily.

4. The electric line printing device can be adjusted up and down through the height adjusting head, and the problem that the ink box can not contact with the masonry is solved.

5. The central line and the sideline are arranged in a color separation mode, and error centering is avoided.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic top view of a single wall lineation working surface of a coke oven;

FIG. 2 is a schematic view of a ruler rod assembly of the plug-in type electric paying-off device of the invention;

FIG. 3 is a schematic view of the plug-in type electric paying out device with separated ruler and rod;

FIG. 4 is a perspective view of an electric thread printing device of the plug-in electric thread releasing device of the present invention;

FIG. 5 is another perspective view of the electric thread printing device of the plug-in electric thread releasing device according to the present invention;

FIG. 6 is a schematic view showing that the cam of the plug-in type electric paying out device of the present invention rotates to the maximum position to push the connecting rod to move;

FIG. 7 is a schematic view of the cam return of the plug-in electric payoff device of the present invention;

FIG. 8 is a schematic structural view of the electric line printing device of the present invention with the addition of a height adjustment head;

FIG. 9 is a schematic view of the height adjustment of the electric marking device shown in FIG. 8;

FIG. 10 is a schematic structural view of a wedge block for height adjustment mounted at the end of a ruler rod of the plug-in type electric paying-off device;

FIG. 11 is a schematic view of a height adjusting device mounted at the end of the rod of the plug-in type electric paying out device;

FIG. 12 is a schematic view of an embodiment of the plug-in type electric paying out device of the present invention.

In the figure: 100. a ruler rod; 110. a first blade bar; 111. positioning holes; 120. a second blade bar; 121. a plug rod; 122. a positioning member; 130. a chute; 140. a starting point mark; 150. a limit stop block; 200. an electric line printing device; 210. a support; 211. a drive mechanism support; 212. a line printing mechanism bracket; 220. a fastening mechanism; 221. mounting a plate; 222. a first lead screw; 223. a first knob; 230. a line printing mechanism; 231. an ink cartridge; 232. an ink adding hole; 233. printing a strip; 234. a connecting rod; 235. a driven base; 236. a spring; 237. a drum; 240. a drive mechanism; 250. a cam; 260. a height adjusting head; 261. a vertical chute plate; 262. a slider; 263. a second lead screw; 264. a second knob; 300. a wedge block; 310. cushion blocks; 320. dovetail joints; 330. a dovetail groove; 400. a height adjustment device; 410. a screw; 420. a nut; 430. a handle; 440. a base; 500. a coke oven wall; 600. a coal charging hole masonry line-drawing sample plate.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, the plug-in type electric paying-off device according to a preferred embodiment of the present invention includes a ruler bar 100 and a plurality of electric line printing devices 200 mounted on the ruler bar 100. The ruler rod 100 is of a multi-section structure and comprises a plurality of sections of ruler rods, the adjacent sections of ruler rods are connected in an inserting mode, a cavity and a positioning hole 111 are formed in the end portion of one of the ruler rods, an inserting rod 121 is arranged at the corresponding end of the other ruler rod, a positioning part 122 is arranged on the inserting rod 121, the inserting rod 121 is inserted into the cavity, and the positioning part 122 is locked in the positioning hole 111 to enable the two sections of ruler rods 100 to be fixedly connected. The retainer 122 is preferably a locking pin or a snap bead. One end of the ruler rod 100 is marked with an initial point mark 140 corresponding to the longitudinal center line of the coke oven wall, and the other end of the ruler rod 100 is also marked with an initial point mark 140.

The plug-in type electric paying-off device is used when a coke oven wall body 500 is arranged for paying off, the ruler rod 100 is designed into a detachable multi-section structure, the working surface conversion and the daily carrying are facilitated, and the problems that the paying-off device is difficult to repeatedly turn on a coke oven, the paying-off efficiency is low and the like are solved. Starting point marks 140 are marked at two ends of the ruler rod 100, so that the wall bodies on two sides can be paid off by moving the wall bodies (the first surface and the second surface or the third surface and the fourth surface) on the same side back and forth without turning, the number of turning times of the ruler rod on the coke oven is reduced, and the working efficiency is improved. The wall body of the other side needs to be rotated by 180 degrees in a paying-off mode, the ruler rod 100 can be detached during rotation, and the working face can be conveniently converted and daily carrying can be conveniently achieved. The two modes are adopted to complete the paying-off of the wall body.

Specifically, the ruler rod 100 comprises a first ruler rod 110 and a second ruler rod 120, the two sections of ruler rods are connected in an inserting mode, a cavity and a positioning hole 111 are formed in the end portion of the first ruler rod 110, an inserting rod 121 is arranged at the corresponding end of the second ruler rod 120, a positioning part 122 is arranged on the inserting rod 121, the positioning part 122 is a locking pin or a collision bead, the inserting rod 121 is inserted into the cavity, and the positioning part 122 is locked in the positioning hole 111, so that the two sections of ruler rods 100 are fixedly connected. The ruler rod 100 is further provided with a limit stop 150, so that the ruler rod 100 can be placed on a wall to limit the electric line printing device 200 from contacting the wall.

Further preferably, in the embodiment, the cross section of the ruler rod 100 is rectangular, the sliding groove 130 is formed in the side surface of the ruler rod 100 along the length direction, the electric line printing devices 200 are installed in cooperation with the sliding groove 130, and the positions of the electric line printing devices 200 correspond to the arrangement positions of bricks of the coke oven wall 500.

Further preferably, in the present embodiment, the electric line printing device 200 includes a bracket 210, a line printing mechanism 230, a driving mechanism 240 and a cam 250, the main structure of the bracket 210 is an L-shaped driving mechanism bracket 211, the driving mechanism 240 is fixedly mounted at the lower end of the L-shaped driving mechanism bracket 211, and the cam 250 is mounted on the output shaft of the driving mechanism 240. The bracket 210 further comprises an L-shaped printing line mechanism bracket 212, the upper end of the printing line mechanism bracket 212 is fixedly connected with the upper end of the driving mechanism bracket 211, and the lower end of the printing line mechanism bracket 212 is used for installing the printing line mechanism 230.

Further preferably, in the present embodiment, the line printing mechanism 230 includes an ink cartridge 231, a link 234, and a driven base 235. The link 234 is rectangular in cross section to prevent the link 234 from rotating in the print line mechanism bracket 212, and to ensure that the line of the printing strip printed on the wall surface is vertical. One end of the link 234 is connected to the rear end of the ink cartridge 231, and the other end thereof passes through the lower end of the thread printing mechanism holder 212 and is connected to the driven base 235. A spring 236 is arranged between the line printing mechanism bracket 212 and the driven base 235, and the spring 236 is sleeved on the connecting rod 234. The driven base 235 is provided with a roller 237 so that the rotation of the cam 250 reciprocally pushes the link 234 to move, and the roller 237 of the driven base 235 is always kept in contact with the cam 250 under the action of the spring 236. The driving mechanism 240 adopts a speed reducing motor, and is connected with the control switch through a lead to perform centralized control operation. The power supply of the speed reducing motor can also be arranged in the driving mechanism bracket 211 and is controlled wirelessly by a remote control circuit.

Further optimize, in this embodiment, the inside of ink horn 231 is equipped with the ink bag, and the shell of ink horn 231 is equipped with a plurality of hole 232 that add ink, is convenient for add the china ink for the ink bag, and the front end of ink horn 231 is equipped with vertical ink ribbon 233, is convenient for print out the lines on the wall body.

Preferably, in this embodiment, the electric line printing device 200 further includes a fastening mechanism 220, the fastening mechanism 220 is mounted at the upper end of the L-shaped driving mechanism bracket 211 so as to be mounted in the chute 130 of the ruler rod 100, the fastening mechanism 220 includes a mounting plate 221, a first lead screw 222 and a first knob 223, one end of the first lead screw 222 is fixedly connected with the upper end of the bracket 210, the other end of the first lead screw 222 is fixedly connected with the mounting plate 221, the first knob 223 is sleeved on the first lead screw 222, the mounting plate 221 is clamped in the chute 130 on the side surface of the ruler rod 100, the first knob 223 can rotate on the first lead screw 222, and the distance between the first knob 223 and the mounting plate 221 is adjusted so as to clamp the chute 130 of the ruler rod 100 and quickly fix the electric line printing device 200, otherwise, the electric line printing device 200 can be released.

The plug-in type electric paying-off device is used when a coke oven wall body 500 is arranged on a line for paying off, when the wall body is built, as shown in figure 12, firstly, an electric line printing device 200 is installed on a ruler rod 100, the position of the ruler rod corresponds to the arrangement position of bricks of the coke oven wall body 500, and a mark corresponding to the longitudinal center line of the coke oven wall body is made at one end of the ruler rod 100 as a starting point; aligning the starting point of the ruler rod on the longitudinal central line of the coke oven wall body 500, and tightly attaching the limit stop 150 of the ruler rod 100 to the edge of the wall body; the driving mechanism 240 is controlled in a wired or wireless manner to drive the cam 250 to rotate, so as to push the connecting rod 234 to move, and the seal strip 233 prints lines on the wall.

Further preferably, in the present embodiment, in order to reduce the deviation caused by the conversion of the central line and the side line of the coal charging hole on the top of the coke oven, a height-adjustable wedge 300 is mounted on the end of the second ruler rod 120, and as shown in fig. 10, the wedge 300 is a U-shaped frame with one side open and can be quickly clamped on the ruler rod 100. The lower surface of the U-shaped frame body is provided with a dovetail groove 330, a pluggable standard cushion block 310 is arranged below the frame body, and the cushion block 310 is placed on the upper surface of the wall body of the observation hole. The upper surface of the cushion block 310 is designed to be a dovetail 320, the lower surface of the cushion block 310 is designed to be a dovetail groove 330, and the dovetail 320 is adopted between the cushion block 310 and the frame body or between the cushion blocks 310 for assembling so as to adjust the lifting height of the end head of the ruler rod 100 until the plug-in type electric paying-off device is horizontally placed on the slope surface of the fire hole wall at the top of the furnace.

In addition to the above height adjusting method, in other embodiments, the height adjusting device 400 can be arranged at the end of the second ruler 120, as shown in fig. 11, the height adjusting device 400 includes a screw 410, a base 440, and a handle 430, the screw 410 vertically penetrates through the end of the ruler 100, the handle 430 is fixedly installed at the top end of the screw 410, the base 440 is fixedly installed at the bottom end of the screw 410, and the base 440 is placed on the upper surface of the wall of the fire hole. The ruler rod 100 is fixedly provided with a screw thread or nut 420 matched with the screw rod 410, and the screw rod 410 rotates relative to the ruler rod 100 to drive the base 440 to move up and down so as to adjust the lifting height of the end head of the ruler rod 100 until the plug-in type electric paying-off device is horizontally placed.

Further preferably, in this embodiment, in order to prevent the ink cartridge 231 from contacting the masonry after the height of the end of the second ruler rod 120 is adjusted, a height adjusting head 260 is further disposed between the bracket 210 and the fastening mechanism 220, the height adjusting head 260 includes a vertical chute plate 261, a slider 262, a second lead screw 263 and a second knob 264, one end of the second lead screw 263 is connected to the slider 262, the other end of the second lead screw 263 is connected to the vertical chute plate 261, the slider 262 is clamped in the chute 130 of the ruler rod 100, the second knob 264 is sleeved on the second lead screw 263, the second knob 264 can rotate on the second lead screw 263, and the distance between the second knob 264 and the slider 262 is adjusted, so as to clamp the chute 130 of the ruler rod 100 and fix the height adjusting head 260 quickly, and conversely, the height adjusting head 260 can be released. The mounting plate 221 of the fastening mechanism 220 is clamped in the vertical chute plate 261 and can slide up and down along the vertical chute plate 261, the first knob 223 can rotate on the first screw 222 and move, the distance between the first knob 223 and the mounting plate 221 is adjusted, so that the vertical chute plate 261 can be clamped, the electric printing line device 200 can be fixed quickly, and otherwise, the electric printing line device 200 can be loosened. The height adjustment head 260 increases the distance from the line marking mechanism 230 to the brick and requires replacement of the ink cartridge 231 of the line marking mechanism 230 with a long ink cartridge.

When the fire hole wall is built, firstly, the electric marking device 200 is arranged on the ruler rod 100, the positions of the electric marking device correspond to the positions of the center lines and the side lines of a plurality of coal charging holes and the rail bases on the top of the coke oven, a mark corresponding to the longitudinal center line of the coke oven wall is made at one end of the ruler rod 100 to be used as a starting point, and the wedge block 300 or the height adjusting device 400 of the second ruler rod 120 is adjusted to enable the ruler rod 100 to be horizontal. Aligning the starting point of the ruler rod 100 on the longitudinal central line of the coke oven wall, and tightly attaching the limit stop 150 of the ruler rod 100 to the edge of the wall; the driving mechanism is controlled to drive the cam to rotate in a wired or wireless mode, and the connecting rod is pushed to move, so that the seal strip is printed on the wall body.

Then, the center line and the side line of the coal charging hole masonry line drawing template 600 are aligned with the printing line marked by the electric line printing device 200, and pencil edge drawing is performed along the edge of the template.

The coal charging hole masonry line drawing sample plate 600 is a plate body with a structure corresponding to the hollow structure of the coal charging hole, a notch is formed in the center of the plate body, and a horizontal ruler is installed.

Further preferably, in this embodiment, in order to distinguish the center line and the edge line, the ink colors of the ink cartridges 231 may be set to different colors, respectively.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A plug-in type electric paying-off device comprises a ruler rod and a plurality of electric wire printing devices arranged on the ruler rod, and is characterized in that the ruler rod is of a multi-section structure and comprises a plurality of sections of ruler rods, two adjacent sections of ruler rods are connected in a plug-in mode, a cavity and a positioning hole are formed in the end portion of one ruler rod, a plug-in rod is arranged at the corresponding end of the other ruler rod, a positioning piece is arranged on the plug-in rod and inserted into the cavity, and the positioning piece is locked in the positioning hole to enable the two sections of ruler rods to be fixedly connected; one end of the ruler rod is marked with an initial point mark corresponding to the longitudinal center line of the coke oven wall, and the other end of the ruler rod is also marked with an initial point mark.

2. The plug-in type electric paying-off device according to claim 1, wherein the cross section of the ruler rod is rectangular, a sliding groove is formed in the side surface of the ruler rod along the length direction, the electric line printing devices are installed in a matched mode with the sliding groove, and the positions of the electric line printing devices correspond to the arrangement positions of bricks on the wall body of the coke oven.

3. The plug-in type electric paying-off device according to claim 2, wherein the electric wire printing device comprises a support, a wire printing mechanism, a driving mechanism and a cam, the main structure of the support is an L-shaped driving mechanism support, the driving mechanism is fixedly arranged at the lower end of the L-shaped driving mechanism support, and the cam is arranged on an output shaft of the driving mechanism; the support further comprises an L-shaped line printing mechanism support, the upper end of the line printing mechanism support is fixedly connected with the upper end of the driving mechanism support, and the lower end of the line printing mechanism support is used for installing the line printing mechanism.

4. The plug-in type electric paying-off device according to claim 3, wherein the line printing mechanism comprises an ink box, a connecting rod and a driven base, the section of the connecting rod is rectangular, one end of the connecting rod is connected with the rear end of the ink box, the other end of the connecting rod penetrates through the lower end of a line printing mechanism support to be connected with the driven base, a spring is arranged between the line printing mechanism support and the driven base, the spring is sleeved on the connecting rod, a roller is arranged on the driven base, so that the rotating motion of the cam pushes the connecting rod to move in a reciprocating mode, and the roller of the driven base is always in contact with the cam under the action of the spring.

5. The plug-in type electric paying-off device according to claim 4, wherein an ink bag is arranged inside the ink box, a plurality of ink adding holes are formed in a shell of the ink box, so that ink can be conveniently added to the ink bag, and a vertical seal strip is arranged at the front end of the ink box, so that lines can be conveniently printed on a wall body.

6. The plug-in type electric paying-off device according to claim 3, wherein the electric line printing device further comprises a fastening mechanism, the fastening mechanism comprises a mounting plate, a first lead screw and a first knob, one end of the first lead screw is fixedly connected with the upper end of the support, the other end of the first lead screw is fixedly connected with the mounting plate, the first knob is sleeved on the first lead screw, the mounting plate is clamped in the sliding groove in the side face of the ruler rod, the first knob can rotate on the first lead screw to move, the distance between the first knob and the mounting plate is adjusted, so that the sliding groove of the ruler rod is clamped tightly, the electric line printing device is fixed quickly, and otherwise, the electric line printing device can be loosened.

7. The plug-in type electric paying-off device according to claim 3, wherein a wedge block with adjustable height is arranged at one end of the ruler rod, the wedge block is a U-shaped frame body with an opening on one side and can be rapidly clamped on the ruler rod, a dovetail groove is arranged below the frame body, a standard plug-in block is arranged below the frame body, the upper surface of the block is designed to be a dovetail, the lower surface of the block is designed to be the dovetail groove, the block is spliced with the frame body or between the blocks through the dovetail groove, and the lifting height of the end of the ruler rod is adjusted until the plug-in type electric paying-off device is.

8. The plug-in type electric paying-off device according to claim 3, wherein a height adjusting device capable of adjusting the height is arranged at one end of the ruler rod, the height adjusting device comprises a screw rod, a base and a handle, the screw rod vertically penetrates through the end part of the ruler rod, the handle is fixedly arranged at the top end of the screw rod, and the base is fixedly arranged at the bottom end of the screw rod; the ruler rod is fixedly provided with a screw thread or a nut matched with the screw rod, and the screw rod rotates relative to the ruler rod to drive the base to move up and down.

9. The plug-in type electric paying-off device according to claim 7 or 8, wherein a height adjusting head is further arranged between the bracket and the fastening mechanism, the height adjusting head comprises a vertical chute plate, a sliding block, a second screw rod and a second knob, one end of the second screw rod is connected with the sliding block, the other end of the second screw rod is connected with the vertical chute plate, the sliding block is clamped in a chute of the ruler rod, the second knob is sleeved on the second screw rod, the second knob can rotate and move on the second screw rod, the distance between the second knob and the sliding block is adjusted, so that the chute of the ruler rod is clamped, the electric line printing device is quickly fixed, and otherwise, the electric line printing device can be released; the mounting plate of the fastening mechanism is clamped in the vertical chute plate and can slide up and down along the vertical chute plate.