CN211464364U

CN211464364U - Rectangular tube sizing roller-replacement-free forming device

Info

Publication number: CN211464364U
Application number: CN201921630437.8U
Authority: CN
Inventors: 喻兵; 林加荣
Original assignee: Nanjing South Light Medium Light Complete Equipment Manufacturing Co ltd
Current assignee: Nanjing South Light Medium Light Complete Equipment Manufacturing Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-09-11
Anticipated expiration: 2029-09-27

Abstract

The utility model relates to a rectangular pipe sizing does not trade roller forming device, including the same upside roller removal subassembly of structure and downside roller removal subassembly, the upside roller removal subassembly includes main shaft, two movable blocks, terminal surface roller, side roller, the one end of main shaft is rotated rather than one of them movable block and is connected, the other end and another movable block of main shaft rotate to be connected, sliding sleeve has slider and main shaft to rotate for sliding on the main shaft, the cover has the terminal surface roller on the main shaft, the terminal surface roller is connected with the slider and follows the main shaft rotation. The utility model discloses utilize two end face rollers and two side rollers to make up synthetic rectangular hole structure in the coplanar, realize the end face roller and the side roller sharing function of shaping certain extent internal rectangular pipe through the relative position change between four rollers, improve the size precision of shaping product when reaching the sizing not roll change.

Description

Rectangular tube sizing roller-replacement-free forming device

Technical Field

The utility model relates to a rectangular pipe former technical field, concretely relates to rectangular pipe sizing does not change roller forming device.

Background

The direct forming technology of the rectangular tube is developed to the present, and the purpose that one set of die meets any specification within a certain range and does not change the roller at all is achieved. How to realize the purpose by adopting different modes by different manufacturers without changing the roller. Two forms are currently commonly used on flat sizing rolls: one form is to place both side rolls and upper and lower flat rolls in different planes, thereby achieving roll sharing. This approach currently appears to present some problems: because the roll box upper and lower rolls are stressed in different planes which are not positioned on the inner side of the same plane, four edges are not stressed at the same time during shaping, so that the phenomena of bulging at the edge of the steel pipe or non-perpendicularity of four angles and the like are easily caused, the end part shape of the produced product is not good, and the product quality is influenced. In another form, the upper and lower rollers and the rollers at two sides are staggered to realize complete sharing of the rollers. The product produced by the mode can meet the requirements for steel pipes with conventional strength and wall thickness, but the four rollers are not cantilever type, so that the equipment strength is insufficient for the production of thick-wall or high-strength steel products, and the dimensional accuracy of the rolled products is difficult to grasp.

SUMMERY OF THE UTILITY MODEL

For solving the problem that prior art exists, the utility model provides a rectangular tube sizing does not change roller forming device utilizes two end face rollers and two side rollers to assemble into rectangular hole structure in the coplanar, changes through relative position between four rollers and realizes the end face roller and the side roller sharing function of shaping certain limit internal rectangular tube, improves the size precision of shaping product when reaching the sizing does not change the roller.

In order to achieve the above object, the utility model adopts the following technical scheme:

a rectangular pipe sizing roller-changing-free forming device comprises a first portal frame and a second portal frame which are parallel to each other, and further comprises an upper side roller moving assembly and a lower side roller moving assembly which are identical in structure, wherein the upper side roller moving assembly comprises a main shaft, two moving blocks, an end surface roller and a side surface roller, one end of the main shaft is rotatably connected with one of the moving blocks, the other end of the main shaft is rotatably connected with the other moving block, one of the moving blocks is sleeved on the first portal frame, the other moving block is sleeved on the second portal frame, a sliding block is slidably sleeved on the main shaft, the main shaft can rotate relative to the sliding block, an end surface roller is sleeved on the main shaft, the end surface roller is connected with the sliding block and rotates along with the main shaft, a U-shaped frame is arranged below the main shaft, the U-shaped frame is rotatably connected with the side surface roller of which the central line is perpendicular to the central line of the end surface roller, the U-shaped, the end surface roller in the lower side roller moving assembly is positioned below the end surface roller in the upper side roller moving assembly, and the end surface roller and the side surface roller in the upper side roller moving assembly and the end surface roller and the side surface roller in the lower side roller moving assembly form a rectangular hole structure.

Preferably, the moving block in the upper roller moving assembly is connected with the first portal frame and the second portal frame in a sliding manner.

In any of the above schemes, preferably, a second lifter is fixed to the top of each of the first gantry and the second gantry, and the second lifter is connected to a corresponding moving block in the upper roller moving assembly.

In any one of the above embodiments, preferably, the side rollers in the lower roller moving assembly are located above the end rollers, and the moving block is located below the moving block in the upper roller moving assembly and fixed to the first gantry and the second gantry.

In any of the above aspects, preferably, the first lifter and the second lifter are worm screw lifters.

In any one of the above schemes, preferably, the main shaft is slidably sleeved with a sleeve, the outer wall of the sleeve is rotatably connected with the sliding block, and the end face roller is fixed on the sleeve.

In any of the above aspects, it is preferable that the gap between the end face roller and the side face roller is 0 to 1 mm.

In any of the above schemes, preferably, the number of the first lifters connected with the slider and the number of the first lifters connected with the U-shaped frame are two, and the two first lifters connected with the slider are respectively located on two sides of the main shaft.

Compared with the prior art, the utility model provides a rectangular pipe sizing does not change roller forming device has following beneficial effect:

1. the two end face rollers and the two side face rollers are combined into a rectangular hole structure in the same plane, the end face rollers and the side face rollers are mounted on a common moving block, the relative positions of the end face rollers and the side face rollers in the height direction are guaranteed to be relatively unchanged, no bulge or non-vertical phenomena of four corners can be caused during shaping in the same plane, the size precision of a formed product is high, the relative positions of the two end face rollers and the two side face rollers are regulated through a first lifter and a second lifter, the width of each end face roller is a rectangular pipe meeting a certain width range, and the height of each side face roller meets the rectangular pipe within a certain height range, so that the end face rollers and the side face rollers which are used for forming the rectangular pipe within a certain range are shared under the condition that the rollers are not replaced, and the size precision of the formed product is improved while the rollers are not replaced during sizing;

2. the first lifter and the second lifter are both worm screw lifters, and the elevator has the advantages of high reliability, long service life, compact structure and small size.

Drawings

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of a rectangular tube sizing roller-change-free forming device provided by the present invention;

FIG. 2 is a cross-sectional view of the lower roller moving assembly of the embodiment of FIG. 1;

FIG. 3 is a schematic structural view of a first gantry in the embodiment shown in FIG. 1;

fig. 4 is a distribution diagram of the first lifter connected to the slider on the moving block in the embodiment of fig. 1.

The figures are labeled as follows: 1. a first gantry; 2. a first lifter; 3. a second gantry; 4. a moving block; 5. an end face roller; 6. a slider; 7. a side roller; 8. a U-shaped frame; 9. a main shaft; 10. a second lifter; 11. a sleeve.

Detailed Description

In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.

As shown in fig. 1-4, according to an embodiment of the rectangular tube sizing roller-changing forming device provided by the present invention, the rectangular tube sizing roller-changing forming device includes a first portal frame 1 and a second portal frame 3 which are parallel to each other and have the same structure, and further includes an upper roller moving assembly and a lower roller moving assembly which have the same structure, the upper roller moving assembly includes a main shaft 9, two moving blocks 4, an end surface roller 5, and a side surface roller 7, one end of the main shaft 9 is rotatably connected to one of the moving blocks 4, the other end of the main shaft 9 is rotatably connected to the other moving block 4, one of the moving blocks 4 is sleeved on the first portal frame 1, the other moving block 4 is sleeved on the second portal frame 3, the main shaft 9 is slidably sleeved with a slider 6, and the main shaft 9 can rotate relative to sliding, the main shaft 9 is sleeved with the end surface roller 5, the end surface roller 5 is connected to the slider 6 and, a U-shaped frame 8 is arranged below the main shaft 9, a side roller 7 with a central line vertical to that of the end roller 5 is rotationally connected in the U-shaped frame 8, the U-shaped frame 8 and the sliding block 6 are connected with a first lifter 2 to enable the first lifter to move along the horizontal direction, the end roller 5 in the lower roller moving assembly is positioned below the end roller 5 in the upper roller moving assembly, the end roller 5 and the side roller 7 in the upper roller moving assembly and the end roller 5 and the side roller 7 in the lower roller moving assembly form a rectangular hole structure, the rectangular hole is used for forming a rectangular pipe, the two moving blocks 4 are fixed through a connecting plate, so that the end roller 5 and the side roller 7 form a whole body to move up and down together, the relative height positions of the end roller 5 and the side roller 7 are unchanged, a right-angle is ensured, the size precision of a product is higher, the first lifter 2 can drive the end roller 5 and the side roller 7 to move along the axial direction of the main shaft 9 independently, thereby can adjust the width of shaping rectangular pipe, and then realized the not unidimensional rectangular pipe of shaping and not the function of roll change through the removal of side roller 7 and terminal surface, it is more convenient to operate, and application scope is wide, and the terminal surface line of terminal surface roller 5, side roller 7 is in the coplanar to can make up into the rectangular hole, guarantee the size precision of shaping product.

The moving block 4 in the upper side roller moving assembly is connected with the first portal frame 1 and the second portal frame 3 in a sliding manner, namely the moving block 4 can move up and down relative to the first portal frame 1 and the second portal frame 3, the tops of the first portal frame 1 and the second portal frame 3 are both fixed with a second lifter 10, and the second lifter 10 is connected with the corresponding moving block 4 in the upper side roller moving assembly and used for driving the moving block 4 to move up and down; thereby make the terminal surface roller 5 and the side roller 7 that the movable block 4 drove the upper roll removal subassembly can consider to reciprocate, can adjust the upper roll removal subassembly and the distance between the downside roller removal subassembly to change the height dimension of shaping rectangular pipe, be applicable to more not unidimensional rectangular pipes.

The side roller 7 in the lower side roller moving assembly is positioned above the end roller 5, the moving block 4 is positioned below the moving block 4 in the upper side roller moving assembly and is fixed with the first portal frame 1 and the second portal frame 3, namely the side roller 7 and the end roller 5 in the lower side roller moving assembly are fixed relative to the first portal frame 1 and the second portal frame 3.

The first lifter 2 and the second lifter 10 are worm screw lifters, that is, one end of a screw in the first lifter 2 is fixedly connected with the corresponding slider 6 and the corresponding U-shaped frame 8, and the bottom of the screw in the second lifter 10 is fixedly connected with the moving block 4 in the upper roller moving assembly.

The sliding sleeve is sleeved with a sleeve 11 on the main shaft 9, the sleeve 11 can slide along the axis of the main shaft 9, the sliding block 6 is connected to the outer wall of the sleeve 11 in a rotating mode, the main shaft 9 can rotate relative to the sliding block 6, the end face roller 5 is fixed on the sleeve 11, and the end face roller 5 and the main shaft 9 can rotate relative to the sliding block 6. And two ends of the main shaft 9 are respectively and rotatably connected with a bearing seat, and the bearing seats are fixedly connected with the adjacent moving blocks 4.

The gap between the end face roller 5 and the side face roller 7 is 0-1mm, so that the rectangular tube can be conveniently molded.

The number of the first lifters 2 connected with the sliding block 6 and the number of the first lifters 2 connected with the U-shaped frame 8 are two, the two first lifters 2 connected with the sliding block 6 are respectively located on two sides of the main shaft 9, the two first lifters 2 can be driven to rotate through a motor, namely, an input port of one lifter is connected with an output port of the other lifter through a rotating shaft, and an output shaft of the motor is connected with an input port of one lifter.

It should be noted that the specific structure and the working principle of the worm screw elevator are the prior art, and are common knowledge to those skilled in the art, and the structure of the gantry is also the prior art, so that detailed description is omitted here.

The working principle of the embodiment is as follows: can drive terminal surface roller 5 and side roller 7 through first lift 2 and move along the axis direction of its main shaft 9, thereby can adjust the relative position of terminal surface roller 5 and side roller 7, and then can form the rectangular pipe of different width dimension, second lift 10 can drive movable block 4 among the roll moving assembly of upside and reciprocate for the roll moving assembly of downside on corresponding first portal frame 1 and second portal frame 3, can form the rectangular pipe of different height dimension, form the rectangular pipe in certain size range under the condition that the roller is not changed in the realization sizing, and side roller 7 and terminal surface roller 5 among the roll moving assembly of upside are unchangeable for the position in the direction of height, and the terminal surface line is in same plane, guarantee can not go out phenomenons such as swell or four angles out, size precision is high.

It will be understood by those skilled in the art that any combination of the elements of the present invention, including the summary and detailed description of the invention provided in the foregoing description and illustrated in the accompanying drawings, is not to be considered limiting in scope and in order to make the description more concise, and not to describe every element of the combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rectangular pipe sizing does not change roller forming device, includes first portal frame and the second portal frame that is parallel to each other, its characterized in that: the upper side roller moving assembly comprises a main shaft, two moving blocks, an end surface roller and a side surface roller, one end of the main shaft is rotatably connected with one of the moving blocks, the other end of the main shaft is rotatably connected with the other moving block, one of the moving blocks is sleeved on a first portal frame, the other moving block is sleeved on a second portal frame, a sliding block is sleeved on the main shaft in a sliding manner, the main shaft can rotate relative to the sliding manner, the end surface roller is sleeved on the main shaft, the end surface roller is connected with the sliding block and rotates along with the main shaft, a U-shaped frame is arranged below the main shaft, the U-shaped frame is rotatably connected with the side surface roller, the center line of the side surface roller is perpendicular to the center line of the end surface roller, the U-shaped frame and the sliding block are both connected with a first lifter to enable the U-shaped frame to move along the horizontal direction, and the end surface roller in the lower side roller moving assembly is positioned below the end surface, and the end surface roller and the side surface roller in the upper side roller moving assembly and the end surface roller and the side surface roller in the lower side roller moving assembly form a rectangular hole structure.

2. A rectangular tube sizing roll-changing forming device according to claim 1, characterized in that: and the moving block in the upper roller moving assembly is in sliding connection with the first portal frame and the second portal frame.

3. A rectangular tube sizing roll-changing forming device according to claim 1, characterized in that: and the tops of the first portal frame and the second portal frame are respectively fixed with a second lifter, and the second lifters are connected with corresponding moving blocks in the upper side roller moving assembly.

4. A rectangular tube sizing roll-changing forming device according to claim 2, characterized in that: the side roller in the lower side roller moving assembly is positioned above the end roller, and the moving block is positioned below the moving block in the upper side roller moving assembly and is fixed with the first portal frame and the second portal frame.

5. A rectangular tube sizing roll-changing forming device according to claim 3, characterized in that: the first lifter and the second lifter are worm screw lifters.

6. A rectangular tube sizing roll-changing forming device according to claim 1, characterized in that: the sliding sleeve is sleeved on the main shaft, the outer wall of the sleeve is connected with the sliding block in a rotating mode, and the end face roller is fixed on the sleeve.

7. A rectangular tube sizing roll-changing forming device according to claim 1, characterized in that: the gap between the end face roller and the side face roller is 0-1 mm.

8. A rectangular tube sizing roll-changing forming device according to claim 1, characterized in that: the number of the first lifters connected with the sliding block and the number of the first lifters connected with the U-shaped frame are two, and the two first lifters connected with the sliding block are respectively located on two sides of the main shaft.