CN110485054A - A kind of centre is without supporting movement overlength crossbeam bend preventing device - Google Patents

Abstract

The invention discloses an anti-bending device for an ultra-long crossbeam with no support in the middle, which is characterized in that it includes a lower hook connected to the front and rear movement motor of the lower hook through the mounting plate of the lower hook tilting motor at the left and right ends respectively through the lower hook chute The horizontal plate, the lower hook is fixed on the horizontal plate with the lower hook, and the upper beam and the lower beam are fixed on the lower hook horizontal plate. The arc surface of the beam is in tangential fit, and the plane of the lower beam fits and connects with the upper surface of the lower hook horizontal plate. The mechanism of the present invention is simple in composition, convenient in disassembly, low in maintenance cost and high in reliability; the movement speed of the lower hook is fast, the weaving efficiency is high, and it has good mechanical properties; the structure is simple, the production is convenient, and the deformation of the beam can be effectively reduced; In order to minimize the amount of bending deformation of the unsupported super-long beam in the middle during the movement.

Description

An anti-bending device for super-long beams without support in the middle

technical field

The invention relates to a knotted net weaving equipment, in particular to an anti-bending device for an extra-long beam with no support in the middle, and belongs to the technical field of high-end textile equipment.

Background technique

With the development of high-performance fiber technology and the innovation of weaving net technology, the increasing demand for net gear in the ocean fishing industry has continuously derived new demands for high-end net products such as marine pastures, marine land protection, and key project protection, driving net weaving technology. Continuous innovation with equipment. Knotted net knitting machine is the key production equipment of the above-mentioned net products, which directly affects the quality and efficiency of net products.

In knotted net weaving machines, there are many machines with a long width (6M). Some fabric installation beams used for key fabric matching are often simply supported on both sides of the super long beam due to movement and space. This causes the 6M long beam to bend in the middle of about 60mm (without horizontal constraints) or 10mm (with horizontal constraints) under the action of its own weight. The deformation is too large, which will affect the cooperation between the fabric parts, so corresponding measures must be taken to reduce the deformation of the beam. .

The number of lower hooks of the knotted net weaving machine is more than 400, which are installed on the beam, so the length of the beam exceeds 6 meters. According to the requirements of the mesh production process, after the upper hook completes the looping movement of the warp thread, the lower hook will move up along the lower hook tracks on both sides, pass through the warp loop, catch the warp thread and then return to complete the hooking movement. During this movement, the beam moves in space along the fixed track, only simply supported at both ends, and the middle is in a suspended state, and there is no space for the beam to be statically supported, which will inevitably cause the beam to fall in the middle, and all the lower hooks are not on the same level superior. A bent beam will affect the coordination of the upper hook, lower hook and comb hook, resulting in netting failure.

Contents of the invention

The technical problem to be solved by the invention is: solve the problem of how to reduce the beam deformation of the knotted net weaving machine.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is to provide an anti-bending device for an extra-long beam without support in the middle, which is characterized in that the left and right ends respectively pass through the lower hook chute through the mounting plate of the lower hook tilting motor The lower hook horizontal plate is connected with the lower hook front and rear movement motor, the lower hook is fixed on the lower hook horizontal plate, and the upper beam and the lower beam are fixed on the lower hook horizontal plate. Both the upper beam and the lower beam are columns with a cut circle shape. body, the arc surface of the upper beam and the arc surface of the lower beam are tangentially matched, and the plane of the lower beam is fitted and connected with the upper surface of the lower hook horizontal plate.

Preferably, the motor for forward and backward motion of the lower hook is connected to the mounting plate of the tilting motor of the lower hook through a large connecting rod and joint bearings.

Preferably, the lower hook chute is fixed on the frame, and the shape of the lower hook chute is the forward and backward movement track of the lower hook.

Preferably, on the mounting plate of the lower hook tilting motor, the lower hook forward and backward movement rollers are fixed, and the arc surface of the lower hook forward and backward movement rollers is in tangential fit with the inner wall of the lower hook chute.

Preferably, the lower hook tilting motor is connected to the lower hook chute through the mounting plate of the lower hook tilting motor.

Preferably, the lower hook horizontal plate is connected with the lower hook tilting motor through the lower hook swing shaft and the lower hook swing shaft support.

Preferably, both the upper beam and the lower beam are cylinders with a semicircular cross-sectional shape.

The plane of the lower beam of the present invention is bonded and connected with the upper surface of the lower hook horizontal plate. When the lower hook horizontal plate bends downward during the movement, because the end surface of the lower beam is semicircular (arched), the bending resistance is strong. It can prevent the lower hook horizontal plate from bending downward to a certain extent, and the end surface of the upper beam is also semicircular (arched), and the arc surfaces of the upper and lower beams are tangentially matched, so the upper beam can prevent the lower beam from moving downward. Bending down, and above can achieve the purpose of anti-bending of the super-long beam without support in the middle.

The mechanism of the present invention is simple in composition, convenient in disassembly, low in maintenance cost and high in reliability; the movement speed of the lower hook is fast, the weaving efficiency is high, and it has good mechanical properties; the structure is simple, the production is convenient, and the deformation of the beam can be effectively reduced; In order to minimize the amount of bending deformation of the unsupported super long beam in the middle during the movement.

Description of drawings

Fig. 1 is a schematic diagram of a middle unsupported motion superlong beam anti-bending device;

Fig. 2 is a partial schematic view of one side end face of a middle unsupported movement ultra-long beam anti-bending device;

Fig. 3 is a schematic diagram of the lower hook movement mechanism of the existing knotted net knitting machine.

Detailed ways

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

The present invention is an anti-bending device for an extra-long beam without support in the middle, as shown in Figures 1-3, it includes a lower hook horizontal plate 4, the lower hook 1 is fixedly installed on the lower hook horizontal plate 4, and the screw rod 3 is used to The upper beam 2, the lower beam 5 and the lower hook horizontal plate 4 are fixed as one. The cross-sectional shapes of the upper beam 2 and the lower beam 5 are cut circles, the arc surface of the upper beam 2 is tangentially matched with the arc surface of the lower beam 5, and the plane of the lower beam 5 is in close contact with the upper surface of the lower hook horizontal plate 4. combined connection.

In this embodiment, the cross-sectional shapes of the upper beam 2 and the lower beam 5 are both semicircular.

The left and right ends of the lower hook horizontal plate 4 are respectively connected to one end of the mounting plate of two lower hook tilting motors 7, and the other end of the mounting plate of each lower hook tilting motor 7 passes through a lower hook chute 6 and the lower hook respectively. Hook forward and backward motion motor 8 is fixedly connected. The lower hook tilting motor 7 is fixed on the mounting plate of the lower hook tilting motor 7.

The front and rear movement motor 8 of the lower hook is connected with the mounting plate of the lower hook tilting motor 7 through the large connecting rod and the joint bearing, that is, when the lower hook front and rear movement motor 8 drives the mounting plate of the lower hook tilting motor 7 to move along the lower hook chute 6, it is positioned at The lower hook front and rear motion roller 9 on the mounting plate of the lower hook tilting motor 7 can roll along the lower hook chute 6 with it, thereby driving the lower hook 1 to move up and down.

The lower hook chute 6 is fixed on the frame, and the shape of the lower hook chute 6 is the front and rear movement track of the lower hook 1. The front and rear motion rollers 9 of the lower hook are fixed on the mounting plate of the lower hook tilting motor 7, and the arc surface of the lower hook front and rear motion rollers 9 is tangentially matched with the lower hook chute 6 inwalls. The lower hook tilting motor 7 is connected with the lower hook chute 6 by the mounting plate of the lower hook tilting motor 7 . The lower hook horizontal plate 4 is connected with the lower hook tilting motor 7 by the lower hook pendulum shaft and the lower hook swing shaft support, and the lower hook tilting motor 7 drives the lower hook horizontal plate 4 to complete the lower hook off-line process.

As shown in Figure 3, it is the lower hook kinematic mechanism of the existing knotted net knitting machine, wherein the lower hook installation beam 10 has a length of 6500 mm, which is an easy-to-bend part, and the coordination of the upper hook, the lower hook, and the comb hook will be affected during the movement. , resulting in network failure. In order to prevent the bending of the installation beam and reduce the occupied volume, the present invention adopts the upper and lower beams plus multi-screw pre-tightening method for restraint. Its composition and principle are shown in Figure 1. Plate 4, screw rod 3 and lower hook chute 6. The cross-sectional shape of the upper and lower beams is shown in Figure 2. It adopts a semicircular plane combination with strong bending strength and a structure with reinforcing ribs in the middle. When installing, connect the upper and lower beams and the lower hook horizontal plate 4 with the screw rod 3 and pre-tighten the beam so that the beam reaches a predetermined rigidity, and then the two sides of the moving beam and the lower hook chute 6 are pre-tightened, so that the bending of the beam can be ensured when moving. Small, to achieve the effect of beam straightening.

Claims (7)

1. a kind of centre is without supporting movement overlength crossbeam bend preventing device, which is characterized in that pass through lower hook respectively including left and right ends The mounting plate of tilt motor (7) passes through lower hook sliding slot (6) and moves forward and backward the lower hook transverse slat (4) that motor (8) is connect, lower hook with lower hook It is fixed on transverse slat (4) lower hook (1), upper beam (2) and underbeam (5) is fixed on lower hook transverse slat (4), upper beam (2) and underbeam (5) are equal It is the cylinder of cyclotomy for cross sectional shape, the arc surface of upper beam (2) and the arc surface of underbeam (5) are in tangent cooperation, and underbeam (5) is put down Face is fitted and connected with lower hook transverse slat (4) upper surface.

2. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that under described Hook moves forward and backward motor (8) and is connect by big connecting rod and oscillating bearing with the mounting plate of lower hook tilt motor (7).

3. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that under described Hook sliding slot (6) is fixed in rack, and the shape of lower hook sliding slot (6) is that lower hook (1) moves forward and backward track.

4. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that under described Lower hook is fixed on the mounting plate of hook tilt motor (7) and moves forward and backward roller (9), and lower hook moves forward and backward the arc surface of roller (9) It is in tangent cooperation with lower hook sliding slot (6) inner wall.

5. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that under described Hook tilts motor (7) and is connect by the mounting plate of lower hook tilt motor (7) with lower hook sliding slot (6).

6. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that under described Hook transverse slat (4) is connect by lower hook balance staff and lower hook pendulum bearing with lower hook tilt motor (7).

7. a kind of centre as described in claim 1 is without supporting movement overlength crossbeam bend preventing device, which is characterized in that described is upper Beam (2) and underbeam (5) are that cross sectional shape is semicircular cylinder.