A synchronous belt tensioning mechanism for a small space

Abstract

This utility model discloses a synchronous belt tensioning mechanism for use in confined spaces, comprising an end mounting plate and a synchronous belt drive mechanism. The synchronous belt drive mechanism is mounted on the end mounting plate and includes at least one synchronous belt tensioning pulley. The synchronous belt tensioning pulley is mounted on the synchronous belt tensioning mechanism, which adjusts the synchronous belt tensioning pulley by eccentric rotation to tension the synchronous belt. This utility model can tension synchronous belts in confined spaces and is easy to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of synchronous belt drive mechanisms, and in particular to a synchronous belt tensioning mechanism for use in confined spaces. Background Technology

[0002] Currently, synchronous belt drives are frequently used in the transmission field. For example, in a printing unit, the suction box uses a synchronous belt mechanism to synchronously drive multiple sets of suction rollers. Over time, the synchronous belt will lengthen, affecting printing registration accuracy, requiring the tensioning pulley to maintain belt tension. In confined spaces, such as the narrow space between the suction box and the frame wall panel, installing a synchronous belt tensioning mechanism is very inconvenient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a synchronous belt tensioning mechanism for use in confined spaces, which is inconvenient for tensioning synchronous belts in narrow spaces.

[0004] The technical problem to be solved by this utility model can be achieved through the following technical solution: A timing belt tensioning mechanism for use in confined spaces includes an end mounting plate and a timing belt drive mechanism. The timing belt drive mechanism is mounted on the end mounting plate and includes at least one timing belt tensioning pulley. The timing belt tensioning pulley is mounted on the timing belt tensioning mechanism, and the timing belt tensioning mechanism adjusts the timing belt tensioning pulley by eccentric rotation to tension the timing belt.

[0005] In a preferred embodiment of this utility model, the synchronous belt tensioning mechanism includes a rotating shaft mounted on the end mounting plate, a rotating plate coaxially mounted at one end of the rotating shaft, and an eccentric shaft eccentrically mounted at the other end of the rotating shaft. When the rotating shaft rotates, the eccentric shaft moves circumferentially around the rotation center of the rotating shaft. The synchronous belt tensioning wheel is fixedly mounted on the eccentric shaft and moves circumferentially around the rotation center of the rotating shaft in tandem with the eccentric shaft. At least one oblong groove is provided circumferentially on the rotating plate, and a screw passes through the oblong groove and is fastened to the end mounting plate. When the rotating shaft does not need to be rotated, the screw fixes the rotating plate to the end mounting plate. When the rotating shaft needs to be rotated, the screw is loosened, causing the rotating plate to drive the rotating shaft to rotate.

[0006] In a preferred embodiment of this utility model, it further includes an upper mounting plate, a lower mounting plate, and two side mounting plates. The upper mounting plate, the lower mounting plate, and the two side mounting plates are connected to the end mounting plate, and the two sides of the upper mounting plate are connected to the two side mounting plates. Together, they form a box. A window is opened on one of the side mounting plates. The window is close to the synchronous belt tensioning mechanism. The rotating plate is fixed or rotated by tightening or loosening screws through the window.

[0007] Thanks to the above technical solution, this utility model can tension the synchronous belt in a confined space and is easy to operate. Attached Figure Description

[0008] Figure 1 This is one of the structural schematic diagrams of a suction box equipped with a synchronous belt rotation mechanism.

[0009] Figure 2 This is the second schematic diagram of the suction box equipped with a synchronous belt rotation mechanism.

[0010] Figure 3 This is an exploded view of the synchronous belt tensioning mechanism and the synchronous belt tensioning pulley of this utility model.

[0011] Figure 4 This is a front view of the synchronous belt tensioning mechanism of this utility model.

[0012] Figure 5 This is a side view of the synchronous belt tensioning mechanism of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] See Figures 1 to 5 The figure shows a suction box 200 equipped with a synchronous belt drive mechanism 100. The suction box 200 includes an end mounting plate 210, an impression roller 220, a lower mounting plate 230, and two side mounting plates 240 and 250. The impression roller 220, the lower mounting plate 230, and the two side mounting plates 240 and 250 are connected to the end mounting plate 210. The two sides of the lower mounting plate 230 are connected to the two side mounting plates 240 and 250, which together form the box body of the suction box 200.

[0015] The synchronous belt drive mechanism 100 is mounted on the end mounting plate 210 and drives a plurality of conveyor rollers 130 and impression rollers 220 to rotate. The end mounting plate 210 is very close to the wall of the printing unit, which makes the space between the end mounting plate 210 and the wall of the printing unit narrow and inconvenient to tension the synchronous belt 110 of the synchronous belt drive mechanism 100.

[0016] Synchronous belt drive mechanism 100 includes at least one synchronous belt tensioner. 220 It also includes a synchronous belt tensioning mechanism 300, on which a synchronous belt tensioning pulley 120 is mounted. The synchronous belt tensioning mechanism 300 adjusts the synchronous belt tensioning pulley 120 by eccentric rotation to tension the synchronous belt 110.

[0017] The synchronous belt tensioning mechanism 300 includes a rotating shaft 310 mounted on an end mounting plate 210, a rotating plate 320 coaxially mounted at one end of the rotating shaft 310, and an eccentric shaft 330 eccentrically mounted at the other end of the rotating shaft 320. When the rotating shaft 310 rotates, the eccentric shaft 330 moves circumferentially around the rotation center of the rotating shaft 310. The synchronous belt tensioning pulley 220 is fixedly mounted on the eccentric shaft 330 by a clamping plate 340 and a clamping screw 350, and moves circumferentially around the rotation center of the rotating shaft 310 along with the eccentric shaft 330. The clamping screw 350 is screwed onto the end of the eccentric shaft 330, pressing the clamping plate 340 onto the synchronous belt tensioning pulley 220.

[0018] To facilitate the rotation and fixation of the rotating plate 320, three oblong grooves 321 are provided circumferentially on the rotating plate 320 (of course, the number of oblong grooves 321 can be one, two, or more than three). Screws 360 pass through the oblong grooves 321 and are fastened to the end mounting plate 210. When the rotating shaft 310 does not need to be rotated, the screws 360 fix the rotating plate 320 to the end mounting plate 210. When the rotating shaft 320 needs to be rotated, the screws 360 are loosened so that the rotating plate 320 drives the rotating shaft 310 to rotate.

[0019] To facilitate tightening or loosening of screws, a window 241 is provided on a side mounting plate 240 of the rotating plate 320. The window 241 is close to the timing belt tensioning mechanism 100. Screws 360 are tightened or loosened through the window 241 to fix or rotate the rotating plate 320.

Claims

1. A timing belt tensioning mechanism for use in confined spaces, comprising an end mounting plate and a timing belt drive mechanism, the timing belt drive mechanism being mounted on the end mounting plate, the timing belt drive mechanism including at least one timing belt tensioning pulley, characterized in that, The timing belt tensioning pulley is mounted on the timing belt tensioning mechanism, which adjusts the timing belt tensioning pulley by eccentric rotation to tension the timing belt.

2. The synchronous belt tensioning mechanism for confined spaces according to claim 1, characterized in that, The synchronous belt tensioning mechanism includes a rotating shaft mounted on the end mounting plate, a rotating plate coaxially mounted at one end of the rotating shaft, and an eccentric shaft eccentrically mounted at the other end of the rotating shaft. When the rotating shaft rotates, the eccentric shaft moves circumferentially around the rotation center of the rotating shaft. The synchronous belt tensioning wheel is fixedly mounted on the eccentric shaft and moves circumferentially around the rotation center of the rotating shaft in tandem with the eccentric shaft. At least one oblong groove is provided circumferentially on the rotating plate, and screws pass through the oblong grooves to secure it to the end mounting plate. When the rotating shaft does not need to be rotated, the screws fix the rotating plate to the end mounting plate. When the rotating shaft needs to be rotated, the screws are loosened, causing the rotating plate to drive the rotating shaft to rotate.

3. A synchronous belt tensioning mechanism for confined spaces according to claim 2, characterized in that, It also includes an upper mounting plate, a lower mounting plate, and two side mounting plates. The upper mounting plate, the lower mounting plate, and the two side mounting plates are connected to the end mounting plate. The two sides of the upper mounting plate are connected to the two side mounting plates, and the two sides of the lower mounting plate are connected to the two side mounting plates, forming a box together. A window is opened on one of the side mounting plates. The window is close to the synchronous belt tensioning mechanism. The rotating plate is fixed or rotated by tightening or loosening the screws through the window.

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