Mesh belt conveying mechanism with dynamic tensioning function

Abstract

The utility model discloses a mesh belt conveying mechanism with a dynamic tensioning function. In the mesh belt conveying mechanism, a supporting frame comprises a translation movable frame which is arranged through a sliding rail and a sliding block. And one of the driving roller and the driven roller is arranged on the translation movable frame. And the translation movable frame is connected with a translation driving mechanism. The translation driving mechanism takes an air cylinder as power, so that when the mesh belt conveying mechanism works and the mesh belt is loosened due to heating, the driving roller and the driven roller are pushed outwards through pressure balance of the air cylinder, and the mesh belt can keep a certain tensile force between the driving roller and the driven roller; when the mesh belt is cooled and shrunk, the driving roller is pulled inwards by resisting the pressure of the air cylinder, so that the mesh belt is prevented from being pulled and damaged due to the cooling and the shrunk of the mesh belt, and meanwhile, the heated and stretched mesh belt can also stretch the heated sheet stock, so that the problem that the heated sheet stock on the mesh belt is wrinkled due to thermal expansion is avoided.

Description

Technical Field

[0001] The utility model relates to a mesh belt conveying mechanism. Background Art

[0002] Mesh belt conveyors utilize a stainless steel mesh belt as the conveying surface. In certain operating environments, mesh belt conveyors require heating of the sheet material. This heating also heats the mesh belt supporting the sheet material. This thermal expansion of the heated mesh belt can cause it to become loose. Furthermore, this expansion can easily cause wrinkles to form in the center of the sheet material. Summary of the Invention

[0003] The problem to be solved by the utility model is that when the mesh belt conveyor mechanism is used in an environment where a sheet is heated, the mesh belt, which is originally stretched, becomes loose due to thermal expansion after being heated; the thermal expansion of the sheet after being heated causes wrinkles to appear on the sheet.

[0004] In order to solve the above problems, the solution adopted by the present invention is as follows:

[0005] According to the utility model, a mesh belt conveying mechanism with dynamic tensioning includes a support frame and an active roller, a passive roller and a mesh belt arranged between the active roller and the passive roller; the active roller and the passive roller are parallel to each other; the active roller is connected to a motor; the support frame also includes a translational movable frame arranged by a slide rail slider; one of the active roller and the passive roller is arranged on the translational movable frame; the translational movable frame is connected to a translation driving mechanism, so that the translational movable frame can move in the direction of increasing the distance between the active roller and the passive roller under the drive of the translation driving mechanism, thereby tensioning the mesh belt arranged between the active roller and the passive roller.

[0006] Furthermore, the translation drive mechanism includes a cylinder; the cylinder is connected to the translation movable frame.

[0007] Furthermore, when the mesh belt conveying mechanism is working, the cylinder is maintained at a certain pressure.

[0008] Furthermore, the support frame includes two support beams parallel to each other and arranged in the transmission direction of the mesh belt and a mesh belt support frame arranged between the two support beams; the translational movable frame includes two support beam connecting frames and a connecting beam fixedly connecting the two support beam connecting frames; the support beam connecting frame is arranged on a slide rail arranged at the end of the support beam through a slider; the connecting beam is perpendicular to the support beam; the two ends of the active roller or the passive roller arranged on the translational movable frame are respectively arranged on the two support beam connecting frames through bearings, and are parallel to the connecting beam.

[0009] Furthermore, the translation drive mechanism includes two cylinders; the two cylinders are respectively arranged on two support beams and respectively connected to two support beam connecting frames.

[0010] Furthermore, the translation drive mechanism includes a translation synchronization mechanism; the translation synchronization mechanism includes a synchronization shaft and two racks; the two racks are respectively arranged on two support beams; the racks and the slide rails are parallel; the two ends of the synchronization shaft are respectively arranged on the support beam connecting frame through bearings and are parallel to the connecting beam; the two ends of the synchronization shaft are also respectively fixed with gears that mesh with the racks.

[0011] Furthermore, the support beam connecting frame includes a slider bracket plate and a bearing bracket plate; the bearing bracket plate is vertically arranged on the inner side of the support beam; the two ends of the active roller or the passive roller arranged on the translational movable frame are respectively arranged on the bearing bracket plates of the two support beam connecting frames through bearings; there are two slider bracket plates; the two slider bracket plates are respectively arranged above and below the bearing bracket plates and are horizontal; a slider engaged with the top slide rail of the support beam is arranged below the upper slider bracket plate, and a slider engaged with the bottom slide rail of the support beam is arranged above the lower slide rail bracket plate.

[0012] Furthermore, the active roller is arranged on the translation movable frame.

[0013] Furthermore, the driven roller is arranged on the translation movable frame.

[0014] The technical effects of the present invention are as follows: Under the technical solution of the present invention, when the mesh belt conveyor mechanism is operating and the mesh belt becomes loose due to heating, the active roller or the passive roller is pushed outward by the pressure balance of the cylinder, so that the mesh belt can maintain a certain tension between the active roller and the passive roller; when the mesh belt cools and shrinks, the active roller or the passive roller is pulled so that the active roller or the passive roller is pulled inward under the balance of the cylinder pressure, so that the mesh belt can maintain the moving tension regardless of heating or cooling, and the mesh belt itself will not be damaged by the tension of the mesh belt cooling and shrinking. On the other hand, the sheet material on the mesh belt can be stretched by the stretched mesh belt after heating, thereby preventing the sheet material from wrinkling due to thermal expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of the structure of the left end part.

[0017] Figure 3 It is a schematic diagram of the connection structure of the hidden support beam and the rear translation movable frame of the mesh belt support frame.

[0018] Wherein, 1 is support frame, 11 is support beam, 12 is mesh belt support frame, 13 is translation movable frame, 131 is support beam connecting frame, 1311 is sliding block support plate, 1312 is bearing support plate, 132 is connecting beam, 21 is driving roller, 22 is driven roller, 23 is motor, 31 is sliding rail, 32 is sliding block, 4 is translation driving mechanism, 41 is air cylinder, 42 is translation synchronization mechanism, 421 is synchronization shaft, 422 is gear, 423 is rack. DETAILED DESCRIPTION

[0019] The utility model will be made further detailed explanation in combination with the drawings.

[0020] As Figure 1 , Figure 2 , Figure 3 shown, a mesh belt conveying mechanism, including support frame 1 and setting on support frame 1 driving roller 21, driven roller 22 and erecting between driving roller 21 and driven roller 22 mesh belt.Driving roller 21 and driven roller 22 parallel to each other.Driving roller 21 is connected with motor 23.The mesh belt conveying mechanism of this embodiment is with dynamic tensioning, specifically, support frame 1 includes the translation movable frame 13 set by sliding rail sliding block.Translation movable frame 13 can be translated along the sliding rail towards the mesh belt conveying direction.Driving roller 21 and motor 23 are set on translation movable frame 13.Translation movable frame 13 is connected with translation driving mechanism 4.Translation driving mechanism 4 can drive translation movable frame 13 to the driving roller 21 and driven roller 22 spacing increases the direction, namely translation movable frame 13 moves away from driven roller 22's direction or the direction of moving away from driven roller 22, to tension the mesh belt erecting between driving roller 21 and driven roller 22.

[0021] More specifically, referring to Figure 2 and Figure 3 , support frame 1 includes two parallel support beams 11 and the mesh belt support frame 12 set between the two support beams 11.Two support beams 11 step towards the mesh belt transmission direction.Mesh belt support frame 12 is used to support the mesh belt between driving roller 21 and driven roller 22.Translation movable frame 13 includes two support beam connecting frames 131 and the connecting beam 132 fixedly connected two support beam connecting frames 131.Support beam connecting frame 131 is set on the sliding rail 31 set at the end of support beam 11 by sliding block 32.Connecting beam 132 has two, parallel to each other, and perpendicular to support beam 11.Driving roller 21 both ends are set on two support beam connecting frames 131 through bearing, parallel to connecting beam 132, and located between two connecting beams 132.

[0022] More specifically, there are two slide rails 31 provided at the end of the support beam 11, which are respectively provided at the top and bottom of the support beam 11. The support beam connecting frame 131 includes a slider bracket plate 1311 and a bearing bracket plate 1312. The bearing bracket plate 1312 is vertically provided on the inner side of the support beam 11. The two ends of the active roller 21 are respectively provided on the bearing bracket plates 1312 of the two support beam connecting frames 131 through bearings. There are two slider bracket plates 1311. The two slider bracket plates 1311 are respectively provided above and below the bearing bracket plates 1312 and are horizontal. A slider 32 that engages with the top slide rail 31 of the support beam 11 is provided at the bottom of the upper slider bracket plate 1311, and a slider 32 that engages with the bottom slide rail 31 of the support beam 11 is provided at the top of the lower slide rail bracket plate 1311. As a result, the support beam connecting frame 131 is in a U-shaped structure to achieve engagement with the slide rail slider of the support beam 11.

[0023] The translation drive mechanism 4 includes a cylinder 41 and a translation synchronization mechanism 42. The translation synchronization mechanism 42 includes a synchronization shaft 421 and two racks 423. The two racks 423 are respectively mounted on the two support beams 11, parallel to the slide rails 31, and located between the upper and lower slide rails 31. The synchronization shaft 421 is mounted on the bearing support plate 1312 of the support beam connecting frame 131 via bearings at both ends, and is parallel to the connecting beam 132 and the active roller 21. Gears 422 that mesh with the racks 423 are fixed to both ends of the synchronization shaft 421. There are two cylinders 41, each mounted on the two support beams 11 and connected to the two support beam connecting frames 131.

[0024] The working principle of this embodiment is as follows: when the mesh belt conveying mechanism is working, the cylinder 41 maintains air pressure at a certain pressure. Thus, when the mesh belt is heated and expanded, causing the mesh belt to relax, the cylinder 41 pushes the translational movable frame 13 to move away from the passive roller 22, so that the mesh belt is tensioned by the cylinder; when the mesh belt cools and shrinks, the mesh belt contraction force resists the pressure of the cylinder 41, causing the translational movable frame 13 to move toward the passive roller 22, so that the mesh belt itself will not be damaged by the contraction force after cooling.

[0025] It should be noted that in this embodiment, the active roller 21 and the motor 23 are disposed on the translationally movable frame 13, while the passive roller 22 is relatively fixed. Those skilled in the art will appreciate that, in another alternative embodiment, the passive roller 22 may be disposed on the translationally movable frame 13, while the active roller 21 and the motor 23 are relatively fixed.

[0026] In addition, in the present embodiment, two air cylinders 41 are provided on both sides of the mesh belt conveying mechanism, so that the forces on both sides of the translation movable frame 13 are balanced. Those skilled in the art understand that in another alternative embodiment, multiple air cylinders 41 can be provided, or only one air cylinder 41 can be provided. In the case of one air cylinder 41, the air cylinder 41 is usually provided in the middle of the translation movable frame 13. In the structure of the translation movable frame 13 described above, the air cylinder 41 can be provided at a position between the two support beams 11 and connected to the connecting beam 132.

Claims

1. A mesh belt conveyor mechanism with dynamic tensioning, comprising a support frame, an active roller and a passive roller arranged on the support frame, and a mesh belt mounted between the active roller and the passive roller; the active roller and the passive roller are parallel to each other; the active roller is connected to a motor; characterized in that: The support frame also includes a translational movable frame arranged by a slide rail slider; one of the active roller and the passive roller is arranged on the translational movable frame; the translational movable frame is connected to a translation driving mechanism, so that the translational movable frame can move in the direction of increasing the distance between the active roller and the passive roller under the drive of the translation driving mechanism, thereby tensioning the mesh belt arranged between the active roller and the passive roller.

2. The mesh belt conveyor mechanism according to claim 1, characterized in that: The translation driving mechanism includes a cylinder; the cylinder is connected to the translation movable frame.

3. The mesh belt conveyor mechanism according to claim 2, characterized in that: When the mesh belt conveying mechanism is working, the cylinder is maintained at a certain pressure.

4. The mesh belt conveyor mechanism according to claim 1, characterized in that: The support frame includes two support beams parallel to each other and arranged in the direction of mesh belt transmission and a mesh belt support frame arranged between the two support beams; the translational movable frame includes two support beam connecting frames and a connecting beam fixedly connecting the two support beam connecting frames; the support beam connecting frame is arranged on a slide rail arranged at the end of the support beam through a slider; the connecting beam is perpendicular to the support beam; the two ends of the active roller or the passive roller arranged on the translational movable frame are respectively arranged on the two support beam connecting frames through bearings, and are parallel to the connecting beam.

5. The mesh belt conveyor mechanism according to claim 4, characterized in that: The translation drive mechanism includes two cylinders; the two cylinders are respectively arranged on two support beams and respectively connected to two support beam connecting frames.

6. The mesh belt conveyor mechanism according to claim 4, characterized in that: The translation drive mechanism includes a translation synchronization mechanism; the translation synchronization mechanism includes a synchronization shaft and two racks; the two racks are respectively arranged on two support beams; the racks and the slide rails are parallel; the two ends of the synchronization shaft are respectively arranged on the support beam connecting frame through bearings and are parallel to the connecting beam; the two ends of the synchronization shaft are also respectively fixed with gears that mesh with the racks.

7. The mesh belt conveyor mechanism according to claim 4, characterized in that: The support beam connecting frame includes a slider bracket plate and a bearing bracket plate; the bearing bracket plate is vertically arranged on the inner side of the support beam; the two ends of the active roller or the passive roller arranged on the translational movable frame are respectively arranged on the bearing bracket plates of the two support beam connecting frames through bearings; there are two slider bracket plates; the two slider bracket plates are respectively arranged above and below the bearing bracket plates and are horizontal; a slider engaged with the top slide rail of the support beam is arranged below the upper slider bracket plate, and a slider engaged with the bottom slide rail of the support beam is arranged above the lower slide rail bracket plate.

8. The mesh belt conveyor mechanism according to any one of claims 1 to 7, characterized in that: The active roller is arranged on the translation movable frame.

9. The mesh belt conveyor mechanism according to any one of claims 1 to 7, characterized in that: The driven roller is arranged on the translation movable frame.

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