CN217144257U

CN217144257U - Wood formwork bending device

Info

Publication number: CN217144257U
Application number: CN202220804520.8U
Authority: CN
Inventors: 靳壮壮; 代磊; 高学锋; 程正波; 丁习斌; 敖凌宇; 罗成; 杨波; 苏博
Original assignee: Construction Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: Construction Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-09
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a plank sheathing bending apparatus, include: the left side and the right side of the rack are respectively provided with a left roller and a right roller, and the left roller is parallel to the right roller; the hydraulic cylinder is arranged on the rack between the left roller and the right roller, the hydraulic cylinder is arranged between the left roller and the right roller, and the telescopic direction of the hydraulic cylinder is vertical to a plane passing through the central axes of the left roller and the right roller simultaneously; the middle part of the bottom rod of the U-shaped frame is fixedly connected to a push rod of the hydraulic cylinder, and the bottom rod of the U-shaped frame is parallel to the left roller and the right roller; the first middle roller is rotatably connected between the two mounting arms of the U-shaped frame, the first middle roller is parallel to the left roller and the right roller, and the first middle roller is driven by the hydraulic cylinder to move along the telescopic direction of the hydraulic cylinder. The problem that in the prior art, the bending of the wood template cannot be accurately controlled is solved.

Description

Wood formwork bending device

Technical Field

The utility model relates to a plank sheathing bending apparatus belongs to the crooked technical field of plank sheathing.

Background

In traditional construction, a building roof is mainly a flat roof, and European buildings are mainly sloping roofs and inclined roofs, so that the construction technology of the roofs is basically mature, and the construction difficulty is low; in recent years, in order to pursue the facade effect and design bright spot of buildings, more and more buildings are designed by adopting arc-shaped roofs.

In the prior art, the design of the arc-shaped roof is generally realized through a cast-in-place arc-shaped roof, but the cast-in-place arc-shaped roof is difficult to control and accurately position due to the radian thereof, a customized aluminum template is generally selected for construction, the deepening processing and manufacturing period of the aluminum template in the implementation process is long, the cast-in-place arc-shaped roof is often used as a key line for the construction period of a single building in a project construction organization plan, and the construction progress of the project is greatly delayed by the secondary deepening processing period. And the aluminum mould is expensive, and the curved roof aluminum mould plates with different radians can not be circulated, which can cause resource waste and is contrary to the construction requirement of 'green energy conservation'. If the wooden template is adopted for construction, the difficult problems of installation, fixation and the like of the wooden template are encountered, and the bent radian is difficult to maintain for a long time after the wooden template is bent, so that the construction is difficult and the precision is difficult to ensure.

In order to solve the problems, the applicant develops a construction method for a cast-in-place hyperbolic roof, the construction method requires bending of a wood template, but the bending radian of the wood template in the prior art cannot be accurately controlled, so that the bending precision of the wood template is low.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: provides a wood formwork bending device to overcome the defects of the prior art.

The technical scheme of the utility model is that: a plank bending apparatus comprising:

the left and right sides of the rack are respectively provided with a left roller and a right roller, the left roller and the right roller are positioned on the same side surface of the rack, and the left roller is parallel to the right roller;

the hydraulic cylinder is arranged on the rack between the left roller and the right roller, the hydraulic cylinder is arranged between the left roller and the right roller, and the telescopic direction of the hydraulic cylinder is vertical to a plane passing through the central axes of the left roller and the right roller simultaneously;

the U-shaped frame comprises a bottom rod and mounting arms, the mounting arms comprise 2 mounting arms, the lower ends of the 2 mounting arms are fixedly connected to the two ends of the bottom rod to form a U-shaped structure, the middle part of the bottom rod of the U-shaped frame is fixedly connected to a push rod of the hydraulic cylinder, and the bottom rod of the U-shaped frame is parallel to the left roller and the right roller;

the first middle roller is rotatably connected between the two mounting arms of the U-shaped frame, the first middle roller is parallel to the left roller and the right roller, and the first middle roller is driven by the hydraulic cylinder to move along the telescopic direction of the hydraulic cylinder.

Further, still include:

and the second middle roller is rotatably connected between the two mounting arms of the U-shaped frame, is parallel to the first middle roller, and has a distance matched with the thickness of the wood formwork.

The utility model has the advantages that: compared with the prior art, the utility model discloses a pneumatic cylinder is flexible to drive first well gyro wheel and reciprocates to downwarping in the middle of making the plank sheathing, known by the radian formula, left side gyro wheel and right gyro wheel are fixed unchangeable apart from, and the radian changes along with the change of gyro wheel lapse distance in first, can realize the crooked radian of accurate control plank sheathing through the distance of controlling gyro wheel lapse in first promptly.

Drawings

Fig. 1 is a perspective view of a wood formwork bending apparatus according to the present invention;

fig. 2 is a schematic view illustrating bending of the wooden form according to the present invention;

fig. 3 is a geometric relationship diagram of the present invention when bending the wooden form.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the detailed description.

Example 1 was carried out:

for the problem of solving prior art curved timber apron and can not carrying out accurate control to the bent radian of timber apron, refer to fig. 1, this embodiment provides a timber apron bending apparatus, includes: the left side and the right side of the frame 3 are respectively provided with a left roller 2-1 and a right roller 2-2, the left roller 2-1 and the right roller 2-2 are positioned on the same side surface of the frame 3, and the left roller 2-1 is parallel to the right roller 2-2; the hydraulic cylinder 4 is arranged on the rack 3 between the left roller 2-1 and the right roller 2-2, the hydraulic cylinder 4 is arranged between the left roller 2-1 and the right roller 2-2, and the telescopic direction of the hydraulic cylinder 4 is vertical to a plane passing through the central axes of the left roller 2-1 and the right roller 2-2 simultaneously; the U-shaped frame 5, the U-shaped frame 5 comprises a bottom rod 5-1 and mounting arms 5-2, the mounting arms 5-2 comprise 2, the lower ends of the 2 mounting arms 5-2 are fixedly connected to the two ends of the bottom rod 5-1 to form a U-shaped structure, the middle part of the bottom rod 5-1 of the U-shaped frame 5 is fixedly connected to a push rod of the hydraulic cylinder 4, and the bottom rod 5-1 of the U-shaped frame 5 is parallel to the left roller 2-1 and the right roller 2-2; the first middle roller 7 is rotatably connected between the two mounting arms 5-2 of the U-shaped frame 5, the first middle roller 7 is parallel to the left roller 2-1 and the right roller 2-2, and the first middle roller 7 is driven by the hydraulic cylinder 4 to move along the telescopic direction of the hydraulic cylinder 4.

When in use, the wooden template is placed as shown in figure 2, and is bent by the stretching of the hydraulic cylinder 4. The working principle of the wood formwork bending device is as follows:

referring to fig. 2 and 3, the distance D between the left roller and the right roller is constant, the first middle roller in the middle controls the pull-down distance H of the wood template, and the mathematical relationship indicates that θ =2 α, α =2 β, and tan β =2H/D, where β = arctan2H/D, θ =4 β =4arctan2H/D, that is, the bending radian θ of the wood template is 4arctan2H/D, and as can be seen from the radian formula, D is fixed, and the radian changes with the change of the pull-down distance H, that is, the bending radian of the wood template can be controlled by controlling the pull-down distance.

Theoretically, first well gyro wheel is pulled from the centre, and left gyro wheel is changeed clockwise, and right gyro wheel is changeed anticlockwise, and first well gyro wheel does not change, can have the influence of the incomplete vertical of the flexible direction of pneumatic cylinder and frame vibrations in the actual processing, if middle only has a first well gyro wheel, in case above factor influence is great, can make first middle gyro wheel can take place to roll, no matter turn left or turn right and roll, the processing just can't be accomplished to the plank sheathing, and in order to solve this problem, furtherly in this embodiment, plank sheathing bending apparatus still includes: and the second middle roller 6 is rotatably connected between the two mounting arms 5-2 of the U-shaped frame 5, the second middle roller 6 is parallel to the first middle roller 7, and the distance between the second middle roller 6 and the first middle roller 7 is matched with the thickness of the wood formwork 9.

When the wood formwork bending machine is used, the wood formwork is clamped between the first middle roller and the second middle roller, firstly, the two rollers have a certain fixing effect on the friction clamping of the wood formwork, secondly, the limiting of the two rollers can play a role in reducing the vibration of the wood formwork, and under the comprehensive effect, the first middle roller can be limited to roll, so that the bending processing efficiency of the wood formwork is improved.

The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A plank bending apparatus comprising:

the left side and the right side of the rack (3) are respectively provided with a left roller (2-1) and a right roller (2-2), the left roller (2-1) and the right roller (2-2) are positioned on the same side surface of the rack (3), and the left roller (2-1) is parallel to the right roller (2-2);

the hydraulic cylinder (4) is arranged on the rack (3) between the left roller (2-1) and the right roller (2-2), the hydraulic cylinder (4) is arranged between the left roller (2-1) and the right roller (2-2), and the telescopic direction of the hydraulic cylinder (4) is vertical to a plane passing through the central axes of the left roller (2-1) and the right roller (2-2) simultaneously;

the device comprises a U-shaped frame (5), wherein the U-shaped frame (5) comprises a bottom rod (5-1) and mounting arms (5-2), the mounting arms (5-2) comprise 2 mounting arms (5-2), the lower ends of the 2 mounting arms (5-2) are fixedly connected to the two ends of the bottom rod (5-1) to form a U-shaped structure, the middle part of the bottom rod (5-1) of the U-shaped frame (5) is fixedly connected to a push rod of a hydraulic cylinder (4), and the bottom rod (5-1) of the U-shaped frame (5) is parallel to a left roller (2-1) and a right roller (2-2);

the first middle roller (7) is rotatably connected between the two mounting arms (5-2) of the U-shaped frame (5), the first middle roller (7) is parallel to the left roller (2-1) and the right roller (2-2), and the first middle roller (7) is driven by the hydraulic cylinder (4) to move along the telescopic direction of the hydraulic cylinder (4).

2. The plank bending apparatus of claim 1, further comprising:

the second middle roller (6) is rotatably connected between the two mounting arms (5-2) of the U-shaped frame (5), the second middle roller (6) is parallel to the first middle roller (7), and the distance between the second middle roller (6) and the first middle roller (7) is matched with the thickness of the wood formwork (9).