Automatic conveying belt tensioner controlled by PLC (Programmable Logic Controller)

Abstract

The utility model relates to the field of automatic conveying, and particularly discloses a PLC control automatic conveying belt tensioner which comprises a first supporting plate and a second supporting plate, a tensioning adjusting structure is arranged on one side of the first supporting plate, the tensioning adjusting structure comprises a sliding plate, the upper end and the lower end of the sliding plate are connected with sliding rails in a sliding mode, and the sliding rails are arranged on the sliding plate. The sliding rails are fixedly connected with the upper side and the lower side of the outer surface of the first supporting plate. A connecting plate is rotatably connected to the surface of the sliding plate, a connecting plate shaft is fixed to the connecting plate, one end of the connecting plate shaft is rotatably connected with a connecting rod, the other end of the connecting plate shaft penetrates through the connecting plate and is fixedly connected with a rotating column, a first arc-shaped groove is formed in the first supporting plate, and a second arc-shaped groove is formed in the second supporting plate; the rotating column synchronously moves in the directions of the first arc-shaped groove and the second arc-shaped groove; by means of the structure, the deviation of the belt is adjusted while the tensioning treatment of the conveying belt is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic conveying, in particular to a PLC-controlled automatic conveyor belt tensioner. Background Art

[0002] With the rapid development of intelligent control technology, traditional mechanized production technology has been gradually eliminated. Especially with the large-scale mechanized production, conveying equipment is indispensable in the transportation process. Especially in the transportation process, the conveyor belt is prone to loosening, deflection, slipping and loss due to the inertia of long-term transportation work. It is necessary to use the tensioning equipment structure to adjust the belt tension to avoid the belt's own problems, so the tensioning equipment is the prerequisite for realizing efficient transportation of the conveyor belt.

[0003] In order to solve the problem of loose conveyor belts, the existing automated conveyor belt tensioning equipment usually adjusts the conveyor belt tension by increasing friction or utilizing the extension and retraction of hydraulic equipment. Although the existing tensioning equipment solves the problem of loose belts and tightens the conveyor belts to a certain extent, the conveyor belts usually have a large offset distance and still need to be shut down for inspection and adjustment, which affects the overall work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a PLC controlled automatic conveyor belt tensioner to solve the following technical problems:

[0005] How to tension the conveyor belt and adjust the belt offset at the same time during the automation control process.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A PLC-controlled automatic conveyor belt tensioner comprises a first support plate and a second support plate, wherein a tension adjustment structure is provided on one side of the first support plate, wherein the tension adjustment structure comprises a sliding plate, wherein upper and lower ends of the sliding plate are slidably connected with slide rails, and the slide rails are fixedly connected to the upper and lower sides of the outer surface of the first support plate;

[0008] The surface of the sliding plate is rotatably connected to a connecting plate, a connecting plate shaft is fixed on the connecting plate, one end of the connecting plate shaft is rotatably connected to a connecting rod, and the other end of the connecting plate shaft passes through the connecting plate and is fixedly connected to a rotating column, a first arc groove is provided on the first support plate, and a second arc groove is provided on the second support plate, and the rotating column moves synchronously along the directions of the first arc groove and the second arc groove.

[0009] Preferably, a convex shaft is fixed to one end of the connecting rod away from the connecting plate axis, a driving motor is provided on the outer side of the convex shaft and rotates under the action of the driving force, the convex shaft passes through the first support plate and is connected to a rotating structure, and the rotating structure is used to adjust the distance between the first support plate and the second support plate.

[0010] Preferably, the rotating structure includes a rotating telescopic rod, which is arranged between the first support plate and the second support plate, and one end of the rotating telescopic rod passes through the first support plate and is connected to the convex shaft, an annular shaft is sleeved on the rotating telescopic rod, and a convex column is fixed on the rotating telescopic rod away from the annular shaft, and a cylinder is rotatably connected between the convex column and the annular shaft.

[0011] Preferably, the other end of the rotating telescopic rod is elastically connected to a first gear, the first gear is meshingly connected to a second gear, the second gear penetrates the second support plate and a gear shaft is rotatably provided on the outer side of the support plate.

[0012] Preferably, a trapezoidal baffle is arranged on the outer side of the second support plate, the rotating column passes through the second support plate and the trapezoidal baffle, and a tensioning spindle is rotatably arranged on the trapezoidal baffle.

[0013] Preferably, the outer side of the trapezoidal baffle is also rotatably connected to a tensioning secondary shaft, the tensioning secondary shaft is located between the tensioning main shaft and the gear shaft, and a conveyor belt is connected between the tensioning secondary shaft, the tensioning main shaft and the gear shaft; a transmission shaft is arranged on the outer side of the second support plate away from the gear shaft.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model provides a first support plate and a second support plate, the first support plate and the second support plate are arranged in parallel, a tensioning adjustment structure is provided on one side of the first support plate, a sliding plate is provided, the sliding plate slides on the outside of the first support plate, and the sliding range is limited by providing a sliding rail, the sliding rail is provided below the first support plate, so as to ensure that the adjustment and support function of the tensioning adjustment structure are realized by moving the sliding plate.

[0016] (2) The utility model provides a first arc groove on the first support plate, and a second arc groove of the same shape and size on the second support plate, and provides a rotating column through the connecting plate shaft to connect the connecting plate, and drives the rotating column to move in the first arc groove and the second arc groove through a connecting rod, and the moving direction is limited to the shape of the arc groove. The movement of the rotating column along the first arc groove and the second arc groove ensures that the movement of the rotating column can achieve the adjustment of the position of the conveyor belt and achieves precise control of the tensioning effect; a cam is provided at the end of the connecting rod away from the connecting plate shaft, and the cam rotates under the action of a driving motor, and a rotating structure is provided by the cam passing through the first support plate, and the positioning position adjustment between the first support plate and the second support plate is ensured by providing the rotating structure.

[0017] (3) The utility model sets a rotating telescopic rod, which is set between the first support plate and the second support plate, to ensure that the distance between the first support plate and the second support plate is limited by the telescopic effect of one end of the rotating telescopic rod; one end of the rotating telescopic rod passes through the first support plate and is connected to the convex shaft; a cylinder is rotatably set on the rotating telescopic rod; the cylinder is fixed and supported by the annular shaft and the convex column set on the rotating telescopic rod; the telescopic rod is limited by the telescopic effect of the cylinder, so that the second support plate can be adjusted; a first gear is set at the other end of the rotating telescopic rod, the first gear is meshed with the second gear, and the rotation of the second gear is controlled by adjusting the distance of the telescopic rod, so that the second gear passes through the second gear shaft set on the second support plate to realize rotation, thereby promoting the adjustment of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a PLC-controlled automatic conveyor belt tensioner of the utility model;

[0020] Figure 2 This is a top view of the overall structure of a PLC-controlled automatic conveyor belt tensioner of the utility model;

[0021] Figure 3 This is an enlarged view of the structure of the rotating structure part A of the utility model;

[0022] Figure 4 This is an enlarged view of the tension adjustment structure part B of the utility model;

[0023] Figure 5 It is a partial plan view of the tensioning and adjusting structure and the rotating structure of the utility model.

[0024] Figure numerals: 1. first support plate; 11. first arc groove; 2. second support plate; 21. second arc groove; 22. trapezoidal baffle; 23. transmission shaft; 3. tensioning adjustment structure; 31. sliding plate; 32. sliding rail; 33. connecting plate; 34. connecting plate shaft; 35. rotating column; 36. connecting rod; 37. convex shaft; 38. tensioning main shaft; 39. tensioning secondary shaft; 4. rotating structure; 41. rotating telescopic rod; 42. annular shaft; 43. convex column; 44. first gear; 45. second gear; 46. gear shaft; 5. driving motor; 6. conveyor belt; 7. cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Please refer to the attached picture Figure 1-2 As shown, a PLC-controlled automatic conveyor belt tensioner in an embodiment of the utility model specifically comprises a first support plate 1 and a second support plate 2. A tensioning adjustment structure 3 is provided on one side of the first support plate 1. The tensioning adjustment structure 3 comprises a sliding plate 31. The upper and lower ends of the sliding plate 31 are slidably connected with slide rails 32. The slide rails 32 are fixedly connected to the upper and lower sides of the outer surface of the first support plate 1. Although the existing tensioning equipment solves the problem of belt slack and tightens the conveyor belt 6 to a certain extent, the conveyor belt 6 usually has a large offset distance and still needs to be stopped for maintenance and adjustment, which affects In order to affect the overall work efficiency, the utility model solves the above-mentioned problem by arranging a first support plate 1, a second support plate 2 and a tensioning adjustment structure 3. By arranging the first support plate 1 and the second support plate 2, the first support plate 1 and the second support plate 2 are arranged in parallel, and the tensioning adjustment structure 3 is arranged on one side of the first support plate 1, specifically by arranging a sliding plate 31, the sliding plate 31 slides on the outside of the first support plate 1, and the sliding range is limited by arranging a sliding rail 32, and the sliding rail 32 is arranged on the upper and lower sides of the first support plate 1, so as to ensure that the adjustment and support function of the tensioning adjustment structure 3 is realized by moving the sliding plate 31.

[0027] By the attached picture Figure 2 , 4As shown, the surface of the sliding plate 31 is rotatably connected with a connecting plate 33, a connecting plate shaft 34 is fixed on the connecting plate 33, one end of the connecting plate shaft 34 is rotatably connected with a connecting rod 36, and the other end of the connecting plate shaft 34 passes through the connecting plate 33 and is fixedly connected with a rotating column 35, a first arc groove 11 is provided on the first supporting plate 1, and a second arc groove 21 is provided on the second supporting plate 2, and the rotating column 35 moves synchronously along the directions of the first arc groove 11 and the second arc groove 21; the connecting plate 33 is rotatably connected and arranged on the surface of the sliding plate 31, and the connecting plate shaft 34 is fixed on the connecting plate 33, and a connecting rod 36 is rotatably arranged at one end of the connecting plate shaft 34, and the connecting plate shaft 34 is driven to rotate by the rotation of the connecting rod 36, and the connecting plate shaft 34 is driven to rotate. Drive the sliding plate 31 to move; by opening a first arc groove 11 on the first support plate 1, and opening a second arc groove 21 of the same shape and size on the second support plate 2, by connecting the connecting plate shaft 34 through the connecting plate 33 to connect the rotating column 35, the rotating column 35 is driven by the connecting rod 36 to move in the first arc groove 11 and the second arc groove 21, and the moving direction is limited to the shape of the arc groove. In this embodiment, the shape of the arc groove is not limited to that shown in the figure, and is designed according to the specific material and specifications of the conveyor belt 6, which will not be repeated here; the movement of the rotating column 35 along the first arc groove 11 and the second arc groove 21 ensures that the movement of the rotating column 35 realizes the adjustment of the position of the conveyor belt 6, and realizes the precise regulation of the tensioning effect.

[0028] As an embodiment of the present invention, please refer to the attached drawings Figure 2 , 4 As shown, specifically, a cam 37 is fixed to one end of the connecting rod 36 away from the connecting plate shaft 34, a driving motor 5 is arranged on the outer side of the cam 37 and rotates under the action of the driving force, the cam 37 passes through the first support plate 1 and is connected with a rotating structure 4, and the rotating structure 4 is used to adjust the distance between the first support plate 1 and the second support plate 2; by arranging the cam 37 at the end of the connecting rod 36 away from the connecting plate shaft 34, the cam 37 rotates under the action of the driving motor 5, and by arranging the rotating structure 4 through the cam 37 passing through the first support plate 1, the positioning position adjustment between the first support plate 1 and the second support plate 2 is realized by arranging the rotating structure 4, thereby ensuring the precise adjustment of the position of the conveyor belt 6.

[0029] As an embodiment of the present invention, please refer to the attached drawings Figure 1-4As shown, specifically, the rotating structure 4 includes a rotating telescopic rod 41, which is arranged between the first support plate 1 and the second support plate 2, and one end of the rotating telescopic rod 41 passes through the first support plate 1 and is connected to the convex shaft 37, an annular shaft 42 is sleeved on the rotating telescopic rod 41, and a convex column 43 is fixed on the rotating telescopic rod 41 away from the annular shaft 42, and a cylinder 7 is rotatably connected between the convex column 43 and the annular shaft 42; by setting the rotating telescopic rod 41, the rotating telescopic rod 41 is arranged between the first support plate 1 and the second support plate 2, so as to ensure that the telescopic effect of one end of the rotating telescopic rod 41 is used to limit the distance between the first support plate 1 and the second support plate 2, and by one end of the rotating telescopic rod 41 passes through the first support plate 1 and is connected to the convex shaft 37, the cylinder 7 is rotatably arranged on the rotating telescopic rod 41, and the cylinder 7 is fixed and supported by the annular shaft 42 and the convex column 43 arranged on the rotating telescopic rod 41, and the telescopic effect of the cylinder 7 limits the telescopic rod, so as to ensure that the second support plate 2 can be adjusted.

[0030] As an embodiment of the present invention, please refer to the attached drawings Figure 5 As shown, specifically, the other end of the rotating telescopic rod 41 is elastically connected to the first gear 44, the first gear 44 is meshedly connected to the second gear 45, the second gear 45 passes through the second support plate 2 and a gear shaft 46 is rotatably arranged on the outer side of the support plate; by arranging the first gear 44 at the other end of the rotating telescopic rod 41, the first gear 44 is meshed with the second gear 45, and the rotation of the second gear 45 is controlled by adjusting the telescopic rod distance, ensuring that the second gear 45 passes through the second gear 45 shaft arranged on the second support plate 2 to realize rotation, thereby facilitating the adjustment of the conveyor belt 6.

[0031] As an embodiment of the present invention, please refer to the attached drawings Figure 1-2 As shown, specifically, a trapezoidal baffle plate 22 is provided on the outer side of the second support plate 2, a rotating column 35 passes through the second support plate 2 and the trapezoidal baffle plate 22, and a tensioning spindle 38 is rotatably provided on the trapezoidal baffle plate 22; the fixed position of the conveyor belt 6 is limited by providing the trapezoidal baffle plate 22, and in addition, the trapezoidal baffle plate 22 realizes the supporting effect on the gear shaft 46, and the tensioning spindle 38 is rotatably provided by the rotating column 35 to drive the tensioning spindle 38 to move and adjust.

[0032] As an embodiment of the present invention, please refer to the attached drawings Figure 1-2As shown in Figure 5, specifically, the outer side of the trapezoidal baffle 22 is also rotatably connected with a tensioning secondary shaft 39, the tensioning secondary shaft 39 is located between the tensioning main shaft 38 and the second gear 45 shaft, and the conveyor belt 6 is connected between the tensioning secondary shaft 39 and the tensioning main shaft 38 and the second gear 45 shaft; a transmission shaft 23 is arranged on the outer side of the second support plate 2 away from the gear shaft 46; by setting the tensioning secondary shaft 39, the tensioning secondary shaft 39 is fixedly arranged on the trapezoidal baffle 22, and the conveyor belt 6 is fixed by the tensioning secondary shaft 39, so as to ensure that the tensioning force of the tensioning main shaft 38 on the conveyor belt 6 is transmitted, and at the same time, the transmission of the conveyor belt 6 is ensured, so as to realize the precise adjustment of the conveyor belt.

[0033] The working principle of the utility model is as follows: by setting a first support plate 1 and a second support plate 2, the first support plate 1 and the second support plate 2 are arranged in parallel, by setting a tension adjustment structure 3 on one side of the first support plate 1, by setting a sliding plate 31, the sliding plate 31 slides on the outside of the first support plate 1, and the sliding range is limited by setting a slide rail 32, the slide rail 32 is arranged on the upper and lower sides of the first support plate 1, ensuring that the adjustment and support function of the tension adjustment structure 3 is achieved by moving the sliding plate 31; by opening a first arc groove 11 on the first support plate 1, A second arc groove 21 of the same shape and size is provided on the support plate 2, and a rotating column 35 is connected by passing the connecting plate shaft 34 through the connecting plate 33, and the rotating column 35 is driven by the connecting rod 36 to move in the first arc groove 11 and the second arc groove 21, and the moving direction is limited to the shape of the arc groove. The rotating column 35 moves along the first arc groove 11 and the second arc groove 21 to ensure that the rotating column 35 moves to adjust the position of the conveyor belt 6, and realizes precise control of the tensioning effect; a convex shaft 37 is provided at one end of the connecting rod 36 away from the connecting plate shaft 34, and the convex shaft 37 The first support plate 1 is rotated under the action of the driving motor 5, and a rotating structure 4 is set by penetrating the first support plate 1 through the convex shaft 37. The rotating structure 4 is set to ensure that the positioning position adjustment between the first support plate 1 and the second support plate 2 is achieved; a rotating telescopic rod 41 is set, and the rotating telescopic rod 41 is set between the first support plate 1 and the second support plate 2, so as to ensure that the telescopic effect of one end of the rotating telescopic rod 41 is used to limit the distance between the first support plate 1 and the second support plate 2. One end of the rotating telescopic rod 41 passes through the first support plate 1 and is connected to the convex shaft 37, and a cylinder 7 is rotatably set on the rotating telescopic rod 41. The cylinder 7 is fixed and supported by the annular shaft 42 and the convex column 43 set on the rotating telescopic rod 41. The telescopic rod 7 is limited by the telescopic effect of the cylinder 7, so as to ensure that the second support plate 2 can be adjusted; a first gear 44 is set at the other end of the rotating telescopic rod 41, and the first gear 44 is meshed with the second gear 45. The rotation of the second gear 45 is controlled by adjusting the distance of the telescopic rod, so as to ensure that the second gear 45 passes through the second gear 45 axis set on the second support plate 2 to realize rotation, thereby promoting the adjustment of the conveyor belt 6.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A PLC controlled automatic conveyor belt tensioner, characterized in that: The invention comprises a first support plate (1) and a second support plate (2), wherein a tension adjustment structure (3) is arranged on one side of the first support plate (1), wherein the tension adjustment structure (3) comprises a sliding plate (31), wherein upper and lower ends of the sliding plate (31) are slidably connected to sliding rails (32), and the sliding rails (32) are fixedly connected to the upper and lower sides of the outer surface of the first support plate (1); The surface of the sliding plate (31) is rotatably connected to a connecting plate (33), a connecting plate shaft (34) is fixed on the connecting plate (33), one end of the connecting plate shaft (34) is rotatably connected to a connecting rod (36), the other end of the connecting plate shaft (34) passes through the connecting plate (33) and is fixedly connected to a rotating column (35), the first supporting plate (1) is provided with a first arc groove (11), the second supporting plate (2) is provided with a second arc groove (21), and the rotating column (35) moves synchronously along the directions of the first arc groove (11) and the second arc groove (21).

2. A PLC controlled automatic conveyor belt tensioner according to claim 1, characterized in that: A convex shaft (37) is fixed to one end of the connecting rod (36) away from the connecting plate shaft (34); a driving motor (5) is arranged outside the convex shaft (37) and rotates under the action of a driving force; the convex shaft (37) passes through the first support plate (1) and is connected to a rotating structure (4); the rotating structure (4) is used to adjust the distance between the first support plate (1) and the second support plate (2).

3. A PLC controlled automatic conveyor belt tensioner according to claim 2, characterized in that: The rotating structure (4) comprises a rotating telescopic rod (41), the rotating telescopic rod (41) being arranged between the first support plate (1) and the second support plate (2), and one end of the rotating telescopic rod (41) passing through the first support plate (1) and connected to the convex shaft (37), a circular shaft (42) being sleeved on the rotating telescopic rod (41), and a convex column (43) being fixed on the rotating telescopic rod (41) away from the circular shaft (42), and a cylinder (7) being rotatably connected between the convex column (43) and the circular shaft (42).

4. A PLC controlled automatic conveyor belt tensioner according to claim 3, characterized in that: The other end of the rotating telescopic rod (41) is elastically connected to a first gear (44), the first gear (44) is meshingly connected to a second gear (45), the second gear (45) penetrates the second support plate (2) and is rotatably provided with a gear shaft (46) on the outer side of the support plate.

5. The PLC-controlled automatic conveyor belt tensioner according to claim 1, characterized in that: A trapezoidal baffle (22) is arranged outside the second support plate (2), the rotating column (35) penetrates the second support plate (2) and the trapezoidal baffle (22), and a tensioning spindle (38) is rotatably arranged on the trapezoidal baffle (22).

6. A PLC controlled automatic conveyor belt tensioner according to claim 5, characterized in that: The outer side of the trapezoidal baffle (22) is also rotatably connected to a tensioning secondary shaft (39), the tensioning secondary shaft (39) is located between the tensioning primary shaft (38) and the second gear (45) shaft, and a conveyor belt (6) is connected between the tensioning secondary shaft (39), the tensioning primary shaft (38) and the second gear (45) shaft; a transmission shaft (23) is arranged on the outer side of the second support plate (2) away from the second gear (45) shaft.

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