Automatic seam welder for concrete drain pipe

Abstract

The utility model relates to the technical field of seam welders, in particular to an automatic seam welder for a concrete drain pipe, a plurality of fixing structures are installed on a first fixing plate in an annular array relation, each fixing structure comprises a fixing ring, the first fixing plate is provided with a plurality of fixing rings through a first fixing groove, and the side ends of the fixing rings are fixedly connected with a base. An abutting rod is slidably connected in the base and the fixing ring, a sliding plate is fixedly connected to the bottom end of the abutting rod, an abutting block is fixedly connected to the sliding plate, a bolt is in threaded connection to the base and abuts against the abutting rod, and a limiting sleeve is slidably connected to the outer end of the base and clamped with the bolt; and the deformed steel bar can be better propped and limited, so that the deformed steel bar is prevented from falling off due to overlarge tension when the seam welder works, and the bolt can be prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of roll welding machines, in particular to an automatic roll welding machine for concrete drainage pipes. Background Art

[0002] Cement culvert refers to a pipe buried below the ground surface, cast with reinforced concrete, commonly known as cement pipe. Among them, the steel cage serves as the skeleton of the cement pipe. The main role of the steel cage is the same as the stress of the longitudinal steel bars of the column, and it mainly plays a tensile role. The steel cage is composed of multiple transverse threaded steel bars and stirrups wrapped and welded on the threaded steel bars. The steel cage is welded by a rolling welder and is made by welding the intersection of the threaded steel bars and stirrups.

[0003] When welding the steel cage, one end of the threaded steel bar needs to be inserted into the fixing ring of the roll welder, and then the threaded steel bar is clamped and fixed by the contact between the bolts and the threaded steel bar. However, when the threaded steel bar is fixed by the bolts, the contact surface of the bolts is smooth. Therefore, when the roll welder is used to weld the steel cage, excessive tension may easily cause the threaded steel bar to slip out of the fixing ring. Moreover, when the roll welder is working, the vibration generated may easily cause the bolts fixing the threaded steel bar to loosen, thereby affecting the fixation of the threaded steel bar.

[0004] Therefore, a rolling welding machine that can limit the threaded steel bar is needed. Utility Model Content

[0005] In order to solve the above problems, the utility model provides an automatic rolling welding machine for concrete drainage pipes, which can better limit the resistance of threaded steel bars to prevent the threaded steel bars from falling due to excessive pulling force when the rolling welding machine is working, and can also prevent the bolts from loosening.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] 4. The repairing kit for automotive dents, according to claim 1, wherein the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut. The bosses comprise a through-hole, a screw bolt, and a nut.

[0008] Optionally, in an embodiment of the present invention, the abutment block is overall in a trapezoidal structure, and a plurality of abutment blocks are linearly distributed.

[0009] Optionally, in an embodiment of the utility model, one side of the base is a hexagonal column structure, the interior of the limiting sleeve is a hexagonal column structure, and the top end of the bolt is a hexagonal column structure.

[0010] Optionally, in an embodiment of the utility model, a first spring is fixedly connected between the slide plate and the fixing ring, and the first spring is a tension spring.

[0011] Optionally, in one embodiment of the utility model, the roll welding structure also includes a roller, the bottom end of the sliding seat is rotatably connected to the roller, a moving component is installed on the sliding seat, a fixed seat is fixedly connected to the guide rail, a second rotating ring is rotatably connected inside the fixed seat, a second fixed plate is fixedly connected inside the second rotating ring, a plurality of second fixed grooves are provided on the second fixed plate in a circular array, and a plurality of guide rings are installed on the second fixed plate through the second fixed grooves.

[0012] Optionally, in an embodiment of the utility model, a limiting structure is installed on the base and the limiting sleeve, the limiting structure includes a second spring, the second spring is fixedly connected between the base and the limiting sleeve, and the second spring is an elastic spring.

[0013] Optionally, in an embodiment of the utility model, a guide rod is fixedly connected to the bottom end of the limiting sleeve, and the guide rod is slidably connected to the base.

[0014] Optionally, in an embodiment of the utility model, a clamping plate is fixedly connected to the limiting sleeve, a clamping slot is provided on the base, and the clamping plate and the clamping slot are engaged.

[0015] Optionally, in an embodiment of the utility model, a protrusion is fixedly connected to the card plate, a groove is provided in the card slot, and the protrusion and the groove are engaged.

[0016] Optionally, in an embodiment of the present invention, the protrusion is an overall arc-shaped structure, and the groove is an overall arc-shaped structure.

[0017] Beneficial effects of the utility model

[0018] The utility model discloses an automatic rolling welding machine for concrete drainage pipes. When welding the steel cage of the concrete drainage pipe through a rolling welding device, after a plurality of threaded steel bars are inserted into a plurality of fixing rings, a limiting sleeve is pushed downward. After the limiting sleeve and the base are fixed, the bolt is rotated. Through the threaded connection between the bolt and the base, an interference rod that contacts with the bolt can be driven to slide in the base and the fixing ring, thereby driving a slide plate and an interference block fixed on the slide plate to slide. Through the interference between the two threads of the interference block and the threaded steel, the threaded steel can be prevented from sliding in the fixing ring when the threaded steel is clamped and fixed. The contact fixes the limiting sleeve. Through the engagement of the limiting sleeve and the bolt, the bolt can be limited, thereby preventing the threaded steel from falling out of the fixing ring due to the loosening of the bolt when the rolling welding device is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A shown;

[0022] Figure 3 It is a schematic diagram of the connection structure of the slide plate and the abutment block of the utility model;

[0023] Figure 4 for Figure 3 The enlarged structural diagram of part B is shown.

[0024] Explanation of the accompanying drawings: guide rail 1, rolling welding structure 2, sliding seat 201, first rotating ring 202, first fixed plate 203, first fixed groove 204, roller 205, moving assembly 206, fixed seat 207, second rotating ring 208, second fixed plate 209, second fixed groove 210, guide ring 211, fixed structure 3, fixed ring 301, base 302, resistance rod 303, slide plate 304, resistance block 305, bolt 306, limiting sleeve 307, first spring 308, limiting structure 4, second spring 401, guide rod 402, clamping plate 403, clamping groove 404, protrusion 405, groove 406. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments. Example 1

[0026] In order to solve the problem of displacement or falling of threaded steel bars during the processing of the roll welding machine, an automatic roll welding machine for concrete drainage pipes is designed. The specific solution is as follows:

[0027] like Figure 1-4 As shown, an automatic seam welding machine for concrete drainage pipes comprises a guide rail 1, a seam welding structure 2 is installed at the top of the guide rail 1, the seam welding structure 2 comprises a sliding seat 201, the top of the guide rail 1 is slidably connected to the sliding seat 201, a first rotating ring 202 is rotatably connected inside the sliding seat 201, a first fixing plate 203 is fixedly connected inside the first rotating ring 202, a plurality of first fixing grooves 204 are arranged in an annular array in the first fixing plate 203, a plurality of fixing structures 3 are installed in an annular array on the first fixing plate 203, and the fixing structure 3 comprises a fixing ring 301, the first fixed plate 203 is provided with a plurality of fixing rings 301 through the first fixing groove 204, the side end of the fixing ring 301 is fixedly connected with the base 302, the base 302 and the fixing ring 301 are slidably connected with a resistance rod 303, the bottom end of the resistance rod 303 is fixedly connected with a slide plate 304, the slide plate 304 is fixedly connected with a resistance block 305, the base 302 is threadedly connected with a bolt 306, the bolt 306 and the resistance rod 303 are in conflict, the outer end of the base 302 is slidably connected with a limiting sleeve 307, the limiting sleeve 307 and the bolt 306 are engaged.

[0028] The abutment block 305 is in a trapezoidal structure as a whole, and a plurality of abutment blocks 305 are arranged in a linear distribution relationship, so as to better fix the threaded steel bar.

[0029] One side of the base 302 is in the shape of a hexagonal column, the interior of the limiting sleeve 307 is in the shape of a hexagonal column, and the top of the bolt 306 is in the shape of a hexagonal column, so that the bolt 306 can be limited.

[0030] A first spring 308 is fixedly connected between the slide plate 304 and the fixing ring 301 . The first spring 308 is a tension spring, so as to drive the slide plate 304 to slide and reset.

[0031] The rolling welding structure 2 also includes a roller 205, which is rotatably connected to the bottom end of the sliding seat 201, a moving component 206 is installed on the sliding seat 201, a fixed seat 207 is fixedly connected to the guide rail 1, a second rotating ring 208 is rotatably connected inside the fixed seat 207, a second fixed plate 209 is fixedly connected inside the second rotating ring 208, a plurality of second fixed grooves 210 are provided on the second fixed plate 209 in a circular array, and a plurality of guide rings 211 are installed on the second fixed plate 209 through the second fixed grooves 210, so that the steel cage can be welded.

[0032] A limiting structure 4 is installed on the base 302 and the limiting sleeve 307. The limiting structure 4 includes a second spring 401. The second spring 401 is fixedly connected between the base 302 and the limiting sleeve 307. The second spring 401 is an elastic spring, which can drive the limiting sleeve 307 to slide and engage with the bolt 306.

[0033] A guide rod 402 is fixedly connected to the bottom end of the limiting sleeve 307 . The guide rod 402 is slidably connected to the base 302 . The second spring 401 can be guided by the guide rod 402 .

[0034] A clamping plate 403 is fixedly connected to the limiting sleeve 307 , and a clamping slot 404 is provided on the base 302 . The clamping plate 403 and the clamping slot 404 are engaged with each other, and the limiting sleeve 307 can be positioned by engaging the clamping plate 403 and the clamping slot 404 .

[0035] A protrusion 405 is fixedly connected to the clamping plate 403, and a groove 406 is provided in the clamping groove 404. The protrusion 405 and the groove 406 are engaged with each other. The protrusion 405 is an arc-shaped structure as a whole, and the groove 406 is an arc-shaped structure as a whole. Through the engagement of the protrusion 405 and the groove 406, the limiting sleeve 307 can be fixed when the limiting sleeve 307 is pushed downward.

[0036] Working principle description:

[0037] During welding, firstly, a plurality of threaded steel bars are inserted into the guide ring 211 through the feeding assembly, and then the threaded steel bars are inserted into the fixing ring 301 through the guide ring 211. After the plurality of threaded steel bars are inserted into the plurality of fixing rings 301, the limiting sleeve 307 is pushed downward. When the limiting sleeve 307 and the base 302 are fixed, the bolt 306 is rotated. The bolt 306 and the base 302 are threadedly connected, so that the interference rod 303 that contacts the bolt 306 can be driven to slide in the base 302 and the fixing ring 301, thereby driving the slide plate 304 and the slide plate fixed on the slide plate 304. The abutment block 305 on the screw thread steel slides, and the abutment block 305 and the groove between the two threads of the screw thread steel are in abutment with each other, so that when the screw thread steel is clamped and fixed, the screw thread steel is prevented from sliding in the fixing ring 301, and the fixing of the limiting sleeve 307 is released. The limiting sleeve 307 and the bolt 306 are engaged, so that the bolt 306 can be limited to prevent the screw thread steel from falling out of the fixing ring 301 due to the loosening of the bolt 306 when the rolling welding device is working. The first spring 308 can drive the slide plate when the bolt 306 and the abutment rod 303 are no longer in abutment with each other. The stopper 307 is positioned by the engagement of the clamping plate 403 and the clamping groove 404. The stopper 307 is fixed when the stopper 307 is pushed downward by the engagement of the protrusion 405 and the groove 406. After the stopper 307 is slid upward, the stopper 307 is driven to slide back and engage with the bolt 306 by the elastic force of the second spring 401, so that the bolt 306 can be limited. The second spring 401 can be guided by the guide rod 402, and then the movement is started. The movable component 206 can drive the sliding seat 201 to slide by rolling in the guide rail 1 through the roller 205. When the sliding seat 201 slides, the first rotating ring 202 and the second rotating ring 208 rotate in the sliding seat 201 and the fixed seat 207 respectively, thereby driving multiple fixed rings 301 and the guide ring 211 to rotate, and then continuously wrap the stirrups around multiple threaded steel bars through an external feeding device. After wrapping, the threaded steel bars and stirrups on the steel cage are welded together through external welding equipment, so that the concrete drainage pipe steel cage can be welded.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic roll welding machine for concrete drainage pipes, comprising a guide rail, a roll welding structure is installed at the top of the guide rail, the roll welding structure comprises a sliding seat, the top of the guide rail is slidably connected to the sliding seat, a first rotating ring is rotatably connected inside the sliding seat, a first fixing plate is fixedly connected inside the first rotating ring, and a plurality of first fixing grooves are arranged in a circular array in the first fixing plate, characterized in that: A plurality of fixing structures are installed on the first fixing plate in a circular array, and the fixing structure includes a fixing ring. The first fixing plate is installed with a plurality of fixing rings through a first fixing groove. The side end of the fixing ring is fixedly connected to a base, and a resistance rod is slidably connected between the base and the fixing ring. A slide plate is fixedly connected to the bottom end of the resistance rod, and a resistance block is fixedly connected to the slide plate. A bolt is threadedly connected to the base, and the bolt resists the resistance rod. A limiting sleeve is slidably connected to the outer end of the base, and the limiting sleeve is engaged with the bolt.

2. The automatic seam welding machine for concrete drainage pipes according to claim 1 is characterized in that: The abutment block is in a trapezoidal structure as a whole, and a plurality of abutment blocks are arranged in a linear distribution relationship.

3. The automatic seam welding machine for concrete drainage pipes according to claim 1 is characterized by: One side of the base is in a hexagonal column structure, the interior of the limiting sleeve is in a hexagonal column structure, and the top end of the bolt is in a hexagonal column structure.

4. The automatic seam welding machine for concrete drainage pipes according to claim 1 is characterized in that: A first spring is fixedly connected between the slide plate and the fixing ring, and the first spring is a tension spring.

5. The automatic seam welding machine for concrete drainage pipes according to claim 1 is characterized by: The roll welding structure also includes a roller, which is rotatably connected to the bottom end of the sliding seat, a moving component is installed on the sliding seat, a fixed seat is fixedly connected to the guide rail, a second rotating ring is rotatably connected inside the fixed seat, a second fixed plate is fixedly connected inside the second rotating ring, a plurality of second fixed grooves are provided on the second fixed plate in a circular array, and a plurality of guide rings are installed on the second fixed plate through the second fixed grooves.

6. The automatic seam welding machine for concrete drainage pipes according to claim 1, characterized in that: A limiting structure is installed on the base and the limiting sleeve, and the limiting structure includes a second spring. The second spring is fixedly connected between the base and the limiting sleeve, and the second spring is an elastic spring.

7. The automatic seam welding machine for concrete drainage pipes according to claim 1, characterized in that: The bottom end of the limiting sleeve is fixedly connected with a guide rod, and the guide rod is slidably connected to the base.

8. The automatic seam welding machine for concrete drainage pipes according to claim 1, characterized in that: The limiting sleeve is fixedly connected with a clamping plate, the base is provided with a clamping slot, and the clamping plate is clamped with the clamping slot.

9. The automatic seam welding machine for concrete drainage pipes according to claim 8, characterized in that: A protrusion is fixedly connected to the card plate, a groove is provided in the card slot, and the protrusion and the groove are engaged.

10. The automatic seam welding machine for concrete drainage pipes according to claim 9, characterized in that: The protrusion is in an arc shape as a whole, and the groove is in an arc shape as a whole.

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