Tray driving and positioning system for circulating conveying line

Abstract

The utility model discloses a tray driving and positioning system for a circulating conveying line, and belongs to the technical field of circulating conveying lines. Comprising a driving mechanism for driving a tray mechanism to move on an annular guide rail; the stopping mechanism is used for stopping the tray mechanism; and the positioning mechanism is used for positioning the tray mechanism. The tray conveying device has the advantages that the driving motor drives the tray through cooperation of the chain and the chain wheel, the tray moving precision is improved, the stopping mechanism and the positioning assembly are arranged, the tray positioning precision is guaranteed, and therefore normal automatic production is guaranteed; a motor torque protection mechanism is arranged, when the motor is overloaded, automatic shutdown is achieved, and the motor is protected against damage; and the tensioning mechanism is arranged, so that the tensioning adjustment of the driving chain can be realized, and the normal transmission of the chain is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tray drive positioning system for circulating conveying line belongs to circulating conveying line technical field. BACKGROUND

[0002] In the automatic industrial production, the conveying line for material turnover is indispensable, through the use of automatic production line, can save a lot of manpower and material resources for enterprise, thereby greatly reduces production cost. The traditional conveying line adopts the belt drive, and the belt is prone to skidding, which reduces the positioning accuracy of the conveying line and affects the normal operation of automatic production. CONTENT OF THE UTILITY MODEL

[0003] To solve the defects of prior art, the utility model aims at providing a tray drive positioning system for circulating conveying line, chain instead of belt, and stop mechanism and positioning mechanism are arranged simultaneously, which ensures the moving accuracy of the tray mechanism and the normal operation of automatic production.

[0004] The utility model discloses a tray drive positioning system for circulating conveying line, which comprises:

[0005] A driving mechanism is arranged to drive the tray mechanism to move on the annular guide rail.

[0006] A stop mechanism is arranged to stop the tray mechanism.

[0007] A positioning mechanism is arranged to position the tray mechanism.

[0008] The driving mechanism comprises a driving motor, a driving shaft connected to the output end of the driving motor through a speed reducer, a driving gear and a driving sprocket fixed on the driving shaft, a driving chain engaged with the driving sprocket and a driven sprocket at both ends, and the driving chain drives the tray mechanism to move along the annular guide rail. A plurality of telescopic driving columns are uniformly distributed on the outer periphery of the driving gear. The driving columns penetrate through the shaft sleeve fixed in the driving gear in the radial direction of the driving gear. The driving columns are connected to the limiting blocks, and the limiting blocks are in separable contact with the shaft sleeve. An inner cavity is formed in the driving gear for accommodating the limiting blocks and the limiting springs. The limiting springs are connected to the limiting blocks and the inner cavity wall at both ends, respectively.

[0009] A motor torque protection mechanism is arranged on the frame to protect the driving motor from overload. The motor torque protection mechanism comprises a detection sensor for monitoring the position of the torque arm, a controller connected to the detection sensor to control the start and stop of the driving motor, a torque arm connected to the speed reducer, a detection sensor fixed on a bracket, a bracket fixed on the bottom of the base, a sleeve top end fixed on the top plate of the base, a compression spring top end connected to the inner top part of the sleeve, a compression spring bottom end crimped on the torque arm, and an adjusting bolt penetrating through the top plate, the sleeve, the compression spring, the torque arm and the bottom plate of the base from top to bottom. A nut connected to the adjusting bolt is arranged on the bottom of the bottom plate.

[0010] The driving sprocket is a double-row driving sprocket, the driving chain is a three-row driving chain, the double-row driving sprocket is engaged with the side driving chains on the two sides of the three-row driving chain, and the frame is provided with wear-resistant support strips for supporting the three-row driving chain.

[0011] The tray mechanism comprises a tray plate and side plates fixed on both sides of the tray plate, the side plates are provided with rollers clamped at both ends of the annular guide rail and in rolling connection with the annular guide rail, positioning blocks are further fixed on both sides of the tray plate, the positioning ends of the positioning blocks are provided with arc-shaped notches, driving insertion holes matched with the driving columns are formed in the arc-shaped notches, the middle driving chain in the three-row driving chain is engaged with the accumulation pulley, the accumulation pulley is rotationally connected to a shaft, the two ends of the shaft are fixed to the tray plate through the mounting side plates, an accumulation force adjusting nut and an accumulation force adjusting spring are arranged between the accumulation pulley and the mounting side plate on one side, the accumulation force adjusting nut is in threaded connection with the shaft, and the two ends of the accumulation force adjusting spring are respectively connected to the accumulation force adjusting nut and a friction plate, the friction plate is in contact with the accumulation pulley.

[0012] The stop mechanism comprises a stop mechanism a matched with the positioning mechanism and a stop mechanism b matched with the driving rotating wheel.

[0013] The stop plate on the stop mechanism a is matched with a stop plate fixed on the tray plate, and the stop plate is telescopically arranged on the movement path of the stop plate.

[0014] The stop mechanism b comprises a stop swing arm, a stop inclined surface is arranged on the stop end of the stop swing arm, the stop swing arm is rotationally connected to a stop base through a rotating shaft, a stop spring is connected to the two ends of the stop swing arm and the stop base, respectively, a limiting frame for limiting the rotation stroke of the stop swing arm is fixed on the stop base, and the stop base is fixed on the frame.

[0015] The positioning mechanism comprises a positioning guide rail fixed on a positioning base, a positioning plate is slidably connected to the positioning guide rail through a sliding block, a positioning cylinder is fixed on the positioning base, the output end of the positioning cylinder is connected to the positioning plate, and the positioning end of the positioning plate is provided with a positioning groove for positioning the positioning column on the side plate.

[0016] The frame is provided with a tensioning mechanism for tensioning the driving chain, and the tensioning mechanism specifically comprises a tensioning mounting box, a plurality of fixed rotating shafts penetrating through positions of the tensioning mounting box, a fixed tensioning idler wheel rotationally connected to the tensioning mounting box through the fixed rotating shafts, and a movable tensioning idler wheel rotationally connected to a moving seat through a movable rotating shaft, wherein the movable rotating shaft penetrates through and is movable along a strip-shaped hole on the tensioning mounting box, an end of the movable rotating shaft is connected with a pointer, an end of the pointer is provided with a scale fixed on the tensioning mounting box, the moving seat is connected with a tensioning screw, the tensioning screw extends out of the tensioning mounting box, a tensioning sleeve is fixed on the outside of the tensioning mounting box, the tensioning screw penetrates through the tensioning sleeve, a tensioning spring is sleeved outside the tensioning sleeve, and the tensioning spring is connected with the tensioning sleeve and a tensioning nut at two ends respectively, and the tensioning nut is in threaded connection with the tensioning screw.

[0017] The utility model discloses the beneficial effect is: drive motor is through chain sprocket cooperation and is driven to the tray, improves the tray movement precision, sets up the stop mechanism and the positioning component, guarantees the positioning precision of tray, thereby guaranteeing the normal operation of automation production, set up motor torque protection mechanism, when the motor overload, automatic shutdown, protect the motor from being damaged, set up tensioning mechanism, can realize the tensioning adjustment of driving chain, guarantees the normal transmission of chain. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structural drawing of the circulating conveying line of the utility model;

[0019] Figure 2 It is the internal structure drawing of the circulating conveying line of the utility model;

[0020] Figure 3 It is the drive mechanism view of the utility model;

[0021] Figure 4 It is the section view of the circulating conveying line of the utility model;

[0022] Figure 5 It is the structure drawing of tray mechanism;

[0023] Figure 6 It is the structure drawing of drive runner;

[0024] Figure 7 It is the structure drawing of stop mechanism b;

[0025] Figure 8 It is the structure drawing of positioning mechanism;

[0026] Figure 9 It is the structure of tensioning mechanism Figure 1 ;

[0027] Figure 10 It is the structure of tensioning mechanism Figure 2 .

[0028] The reference signs in the drawings are as follows: 1, annular guide rail, 2, tray mechanism, 2.1, tray plate, 2.2, side plate, 2.3, positioning block, 2.4, driving socket, 2.5, accumulation belt wheel, 2.6, shaft, 2.7, mounting side plate, 2.8, accumulation force adjusting nut, 2.9, accumulation force adjusting spring, 2.10, friction plate, 2.11, baffle, 2.12, positioning column, 2.13, roller, 3.1, driving motor, 3.2, driving shaft, 3.3, driving rotary wheel, 3.4, driving sprocket, 3.5, driven sprocket, 3.6, driving column, 3.7, limiting block, 3.8, shaft sleeve, 3.9, limiting spring, 3.10, driving chain, 4.1, torque arm, 4.2, detection sensor, 4.3, support, 4.4, base, 4.5, sleeve, 4.6, compression spring, 4.7, adjusting bolt, 5, stop mechanism a, 5.1, stop plate, 6, frame, 7, stop mechanism b, 7.1, stop base, 7.2, stop swing arm, 7.3, limiting frame, 7.4, stop spring, 7.5, rotating shaft, 8.1, positioning base, 8.2, positioning guide rail, 8.3, sliding block, 8.4, positioning plate, 8.5, positioning cylinder, 8.6, positioning groove, 9.1, tensioning mounting box, 9.2, fixed tensioning idler, 9.3, movable tensioning idler, 9.4, moving seat, 9.5, pointer, 9.6, scale, 9.7, tensioning screw, 9.8, tensioning sleeve, 9.9, tensioning spring, 9.10, tensioning nut. DETAILED DESCRIPTION

[0029] The accompanying drawings are described below Figures 1-10 Further description of the utility model is as follows:

[0030] A tray driving positioning system for a circulating conveying line, the tray mechanism 2 is slidingly connected to the annular guide rail 1 under the action of the driving mechanism, the frame 6 is further provided with a stop mechanism and a positioning mechanism, which are respectively used for stopping and positioning the tray mechanism.

[0031] The driving mechanism comprises a driving motor 3.1, the output end of the driving motor 3.1 is connected with a driving shaft 3.2 through a speed reducer, a driving rotary wheel 3.3 and a driving sprocket 3.4 are fixed on the driving shaft 3.2, two ends of a driving chain 3.10 are engaged with the driving sprocket 3.4 and a driven sprocket 3.5, the driving chain 3.10 drives the tray mechanism 2 to move along the annular guide rail 1, the driving sprocket 3.4 is a double-row driving sprocket, the driving chain 3.10 is a three-row driving chain, the double-row driving sprocket is engaged with the side driving chains on the two sides of the three-row driving chain, a wear-resistant support strip for supporting the three-row driving chain is arranged on the frame 6, the material of the wear-resistant support strip is preferably polyurethane, and the wear-resistant support strip can also reduce friction. A plurality of telescopic driving columns 3.6 are uniformly distributed on the outer periphery of the driving rotary wheel 3.3, the driving columns 3.6 penetrate through the shaft sleeve 3.8 in the driving rotary wheel 3.3 in the radial direction, the driving columns 3.6 are connected with limiting blocks 3.7, the limiting blocks 3.7 are in separable contact with the shaft sleeve 3.8, an inner cavity for accommodating the limiting blocks 3.7 and limiting springs 3.9 is formed in the driving rotary wheel 3.3, and the limiting springs 3.9 are respectively connected with the limiting blocks 3.7 and the inner cavity wall at two ends.

[0032] The tray mechanism 2 comprises a tray plate 2.1 and side plates 2.2 fixed on the two sides of the tray plate 2.1, the side plates 2.2 are provided with rollers 2.13 clamped at the two ends of the annular guide rail 1 and in rolling connection with the annular guide rail 1, positioning blocks 2.3 are further fixed on the two sides of the tray plate 2.1, the positioning end of the positioning block 2.3 is provided with an arc-shaped notch, a driving insertion hole 2.4 matched with the driving column 3.6 is formed in the arc-shaped notch, the middle driving chain in the three-row driving chain is engaged with an accumulation belt wheel 2.5, so as to avoid the interference between the accumulation belt wheel 2.5 and the driving sprocket 3.4, the accumulation belt wheel 2.5 is rotationally connected with a shaft 2.6, the two ends of the shaft 2.6 are fixed on the tray plate 2.1 through mounting side plates 2.7, an accumulation force adjusting nut 2.8 and an accumulation force adjusting spring 2.9 are arranged between the accumulation belt wheel 2.5 and the mounting side plate 2.7 on one side, the accumulation force adjusting nut 2.8 is threadedly connected with the shaft 2.6, and the two ends of the accumulation force adjusting spring 2.9 are respectively connected with the accumulation force adjusting nut 2.8 and a friction plate 2.10, the friction plate 2.10 is in contact with the accumulation belt wheel 2.5.

[0033] The stop mechanism includes a stop mechanism a5 matched with the positioning mechanism, and a stop mechanism b7 matched with the driving rotating wheel 3.3. The stop plate 5.1 on the stop mechanism a5 is matched with the stop plate 2.11 fixed on the supporting plate 2.1, and the stop plate 5.1 is arranged on the moving path of the stop plate 2.11 in an extendable manner. The stop mechanism a5 is a prior art, and the specific structure of the stop mechanism a5 is disclosed in the patent with the publication number CN209455627U, and the present application will not be described again. The stop mechanism b7 includes a stop swing arm 7.2, the stop end of the stop swing arm 7.2 is provided with a stop inclined surface, the stop swing arm 7.2 is rotationally connected with a stop base 7.1 through a rotating shaft 7.5, a stop spring 7.4 is connected with the stop swing arm 7.2 and the stop base 7.1 at both ends, respectively, a limiting frame 7.3 for limiting the rotation overstroke of the stop swing arm 7.2 is fixed on the stop base 7.1, and the stop base 7.1 is fixed on the frame 6.

[0034] The positioning mechanism includes a positioning guide rail 8.2 fixed on a positioning base 8.1, a positioning plate 8.4 is slidingly connected with the positioning guide rail 8.2 through a sliding block 8.3, a positioning cylinder 8.5 is fixed on the positioning base 8.1, an output end of the positioning cylinder 8.5 is connected with the positioning plate 8.4, and a positioning end of the positioning plate 8.4 is provided with a positioning groove 8.6 for positioning a positioning column 2.12 on the side plate 2.2.

[0035] The accurate positioning of the tray mechanism 2 on the ring-shaped guide rail 1 is achieved through two actions: stopping and positioning. The stopping action is completed by the stopping mechanism a5. Specifically, the cylinder drives the stopping plate 5.1 to rise, making the stopping plate 5.1 rise to the moving path of the stopping plate 2.11. When the stopping plate 2.11 moves to the stopping plate 5.1, the two plates contact, and the stopping plate 5.1 blocks the continuous movement of the stopping plate 2.11, i.e., the tray mechanism 2 as a whole stops moving, and the driving sprocket 3.4 drives the accumulation and release pulley 2.5 to overcome the resistance of the friction plate 2.10. The positioning action is specifically that the positioning cylinder 8.5 drives the positioning plate 8.4 to move upward along the positioning guide rail 8.2. The positioning slot 8.6 at the top of the positioning plate 8.4 is inserted into the positioning column 2.12 of the tray mechanism 2, i.e., the positioning column 2.12 is located in the positioning slot 8.6, so that the relative position between the positioning slot 8.6 and the positioning column 2.12 is fixed, achieving the purpose of accurate positioning of the tray mechanism 2. When it is necessary to release the tray mechanism 2, the positioning cylinder 8.5 drives the positioning plate 8.4 to move downward, and the cylinder drives the stopping plate 5.1 to move downward and away from the moving path of the stopping plate 2.11. The tray mechanism 2 can continue to move along the ring-shaped guide rail 1 under the drive of the driving chain 3.10. The power of the tray mechanism 2 relies on the friction force between the accumulation and release pulley 2.5 and the friction plate 2.10. When the tray mechanism 2 is turned over, its gravity is greater than the friction force, which may cause the turning speed to be too fast. At this time, the movement of the tray mechanism 2 is not controlled by the driving motor 3.1, causing the movement of the tray mechanism 2 to be synchronized with the operation of the driving motor 3.1, so that the position of the tray mechanism 2 on the driving chain 3.10 cannot be accurately controlled. To avoid the above phenomenon, the driving rotary wheel 3.4 is provided. The driving motor 3.1 controls the synchronization of the movement of the tray mechanism 2 through the driving rotary wheel 3.4. The tray mechanism 2 is driven to turn downward by the driving rotary wheel 3.3. The driving rotary wheel 3.3 is inserted into the driving insertion hole 2.4 of the tray mechanism 2 through the driving column 3.6 on the outer periphery, to achieve the driving of the tray mechanism 2. To ensure that the driving column 3.6 can be smoothly inserted into the driving insertion hole 2.4, the tray mechanism 2 needs to stop moving before turning, i.e., stopping by the stopping mechanism b7. The specific action process of the above stopping and driving is as follows: when the positioning column 2.12 at the bottom of the tray mechanism 2 passes through the stopping inclined surface of the stopping swing arm 7.2, it is stopped by the stopping inclined surface, so that the tray mechanism 2 cannot move. The driving rotary wheel 3.3 is located in the arc-shaped slot of the positioning block 2.3 and is in a rotating state. The driving column 3.6 enters the arc-shaped slot and is compressed. When it is rotated to be opposite to the driving insertion hole 2.4, the driving column 3.6 extends and is inserted into the driving insertion hole 2.4. The driving column 3.6 drives the positioning column 2.12 of the tray mechanism 2 to move along the stopping inclined surface, and compresses the stopping spring 7.4 through the stopping swing arm 7.2. After the positioning column 2.12 is separated from the stopping inclined surface, the stopping swing arm 7.2 returns to its original position. The tray mechanism 2 is turned over under the driving of the positioning column 2.12 of the driving rotary wheel 3.3.

[0036] The frame 6 is provided with a motor torque protection mechanism for overload protection of the driving motor 3.1, which comprises a detection sensor 4.2 for monitoring the position of the torque arm 4.1, the detection sensor 4.2 being connected to a controller for controlling the start and stop of the driving motor 3.1, the torque arm 4.1 being connected to a speed reducer, the detection sensor 4.2 being fixed on a bracket 4.3, the bracket 4.3 being fixed on the bottom of a base 4.4, a sleeve 4.5 being fixed on the top plate of the base 4.4 at the top end, a compression spring 4.6 being connected to the inner top of the sleeve 4.5 at the top end, the bottom end of the compression spring 4.6 being crimped on the torque arm 4.1, an adjusting bolt 4.7 being sequentially penetrated from top to bottom through the top plate, the sleeve 4.5, the compression spring 4.6, the torque arm 4.1 and the bottom plate of the base 4.4, and the bottom plate being provided with a nut connected with the adjusting bolt. Figure 3 As shown, the driving motor 3.1 drives the driving chain 3.10 to rotate counterclockwise, when the motor is overloaded, the driving shaft 3.2 cannot normally rotate counterclockwise, at this time the driving motor 3.1 and the speed reducer will rotate clockwise around the driving shaft 3.2, driving the torque arm 4.1 to rotate clockwise, the torque arm 4.1 rotates out of the detection range of the detection sensor 4.2, the detection sensor 4.2 sends a signal to the controller, the controller sends a stop instruction to the driving motor 3.1, the driving motor 3.1 stops running, realizing the overload protection of the driving motor 3.1.

[0037] The frame 6 is provided with a tensioning mechanism for tensioning the driving chain 3.10, which specifically comprises a tensioning mounting box 9.1, a plurality of fixed rotating shafts are penetrated through the tensioning mounting box 9.1, a fixed tensioning idler 9.2 is rotatably connected in the tensioning mounting box 9.1 through the fixed rotating shaft, a movable tensioning idler 9.3 is rotatably connected on a moving seat 9.4 through a movable rotating shaft, the movable rotating shaft is penetrated through and movable along the strip-shaped hole on the tensioning mounting box 9.1, the end of the movable rotating shaft is connected with a pointer 9.5, the end of the pointer 9.5 is provided with a scale 9.6 fixed on the tensioning mounting box 9.1, the moving seat 9.4 is connected with a tensioning screw 9.7, the tensioning screw 9.7 extends out of the tensioning mounting box 9.1, a tensioning sleeve 9.8 is fixed outside the tensioning mounting box 9.1, the tensioning screw 9.7 is penetrated through the tensioning sleeve 9.8, a tensioning spring 9.9 is sleeved outside the tensioning sleeve 9.8, the two ends of the tensioning spring 9.9 are respectively connected with the tensioning sleeve 9.8 and a tensioning nut 9.10, and the tensioning nut 9.10 is threadedly connected with the tensioning screw 9.7. Figure 9 and Figure 10As shown, during the tensioning operation, the tensioning nut 9.10 is moved to the left, the tensioning spring 9.9 is compressed, the elastic force is increased, the tensioning nut 9.10 is pushed to move the tensioning screw 9.7 to the right, the tensioning screw 9.7 drives the movable tensioning idler 9.3 to move to the right, the distance between the movable tensioning idler 9.3 and the fixed tensioning idler 9.2 on the left is increased, the tensioning of the driving sprocket 3.4 is realized, and the tensioning of the tensioning spring 9.9 can be understood and accurately adjusted by observing the pointing position of the pointer 9.5 on the scale 9.6.

[0038] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A pallet drive positioning system for a circulating conveyor line, characterized in that, include: The drive mechanism drives the pallet mechanism (2) to move on the annular guide rail (1); The blocking mechanism stops the pallet mechanism (2); The positioning mechanism positions the pallet mechanism (2); The drive mechanism includes a drive motor (3.1), the output end of which is connected to a drive shaft (3.2) via a reducer. A drive wheel (3.3) and a drive sprocket (3.4) are fixed on the drive shaft (3.2). The two ends of a drive chain (3.10) mesh with the drive sprocket (3.4) and the driven sprocket (3.5). The drive chain (3.10) drives the pallet mechanism (2) to move along the annular guide rail (1). Several retractable drive wheels are evenly distributed around the outer periphery of the drive wheel (3.3). A moving column (3.6) is provided, which radially passes through a bushing (3.8) fixed in the drive wheel (3.3). The drive column (3.6) is connected to a limiting block (3.7), which is in detachable contact with the bushing (3.8). The drive wheel (3.3) has an inner cavity for accommodating the limiting block (3.7) and the limiting spring (3.9). The two ends of the limiting spring (3.9) are respectively connected to the limiting block (3.7) and the inner cavity wall. The drive sprocket (3.4) is a double-row drive sprocket, and the drive chain (3.10) is a three-row drive chain. The double-row drive sprocket meshes with the side drive chains on both sides of the three-row drive chain. The frame (6) is provided with wear-resistant support strips for supporting the three-row drive chain. The pallet mechanism (2) includes a pallet (2.1) and side plates (2.2) fixed on both sides of the pallet (2.1). The side plates (2.2) are provided with rollers (2.13) clamping both ends of the annular guide rail (1) and rollingly connected to the annular guide rail (1). Positioning blocks (2.3) are also fixed on both sides of the pallet (2.1). The positioning ends of the positioning blocks (2.3) are provided with arc-shaped slots. The arc-shaped slots have drive insertion holes (2.4) that cooperate with the drive column (3.6). The middle drive chain of the three rows of drive chains meshes with the accumulation pulley (2.5). The accumulating pulley (2.5) is rotatably connected to the shaft (2.6). Both ends of the shaft (2.6) are fixed to the support plate (2.1) via mounting side plates (2.7). An accumulating force adjusting nut (2.8) and an accumulating force adjusting spring (2.9) are provided between the accumulating pulley (2.5) and the mounting side plate (2.7) on one side. The accumulating force adjusting nut (2.8) is threaded to the shaft (2.6). The two ends of the accumulating force adjusting spring (2.9) are respectively connected to the accumulating force adjusting nut (2.8) and the friction plate (2.10). The friction plate (2.10) is in contact with the accumulating pulley (2.5). The stopping mechanism includes a stopping mechanism a (5) that cooperates with the positioning mechanism, and a stopping mechanism b (7) that cooperates with the drive wheel (3.3). The stop plate (5.1) on the stop mechanism a (5) cooperates with the baffle (2.11) fixed on the support plate (2.1), and the stop plate (5.1) is telescopically arranged on the moving path of the baffle (2.11); The stopping mechanism b (7) includes a stopping arm (7.2), the stopping end of the stopping arm (7.2) is provided with a stopping slope, the stopping arm (7.2) and the stopping base (7.1) are rotatably connected by a rotating shaft (7.5), the two ends of the stopping spring (7.4) are respectively connected to the stopping arm (7.2) and the stopping base (7.1), the stopping base (7.1) is fixed with a limiting frame (7.3) to limit the rotation of the stopping arm (7.2), and the stopping base (7.1) is fixed on the frame (6); The positioning mechanism includes a positioning guide rail (8.2) fixed on the positioning base (8.1), a positioning plate (8.4) slidably connected to the positioning guide rail (8.2) via a slider (8.3), a positioning cylinder (8.5) fixed on the positioning base (8.1), the output end of the positioning cylinder (8.5) connected to the positioning plate (8.4), and the positioning end of the positioning plate (8.4) is provided with a positioning groove (8.6), which is used to position the positioning post (2.12) on the side plate (2.2).

2. The pallet drive positioning system for a circulating conveyor line according to claim 1, characterized in that, The frame (6) is provided with a motor torque protection mechanism for overload protection of the drive motor (3.1). The motor torque protection mechanism includes a detection sensor (4.2) for monitoring the position of the torque arm (4.1). The detection sensor (4.2) is connected to a controller that controls the start and stop of the drive motor (3.1). The torque arm (4.1) is connected to a reducer. The detection sensor (4.2) is fixed on a bracket (4.3). The bracket (4.3) is fixed to the bottom of the base (4.4). The top of the sleeve (4.5) is fixed on the top plate of the base (4.4). The top of the compression spring (4.6) is connected to the top of the sleeve (4.5). The bottom of the compression spring (4.6) is pressed against the torque arm (4.1). The adjusting bolt (4.7) passes through the top plate, sleeve (4.5), compression spring (4.6), torque arm (4.1) and the bottom plate of the base (4.4) from top to bottom. The bottom of the bottom plate is provided with a nut connected to the adjusting bolt.

3. The pallet drive positioning system for a circulating conveyor line according to claim 1, characterized in that, The frame (6) is provided with a tensioning mechanism for tensioning the drive chain (3.10). The tensioning mechanism specifically includes a tensioning mounting box (9.1). Several fixed rotating shafts are fixed in position through the tensioning mounting box (9.1). A fixed tensioning idler wheel (9.2) is rotatably connected to the tensioning mounting box (9.1) through the fixed rotating shafts. A movable tensioning idler wheel (9.3) is rotatably connected to a movable seat (9.4) through a movable rotating shaft. The movable rotating shaft passes through and can move along the strip hole on the tensioning mounting box (9.1). A pointer (9.5) is connected to the end of the movable rotating shaft. The end of the pointer (9.5) is provided with... A scale (9.6) is fixed on the tension mounting box (9.1). The movable seat (9.4) is connected to the tension screw (9.7). The tension screw (9.7) extends to the outside of the tension mounting box (9.1). A tension sleeve (9.8) is fixed on the outside of the tension mounting box (9.1). The tension screw (9.7) passes through the tension sleeve (9.8). A tension spring (9.9) is sleeved on the outside of the tension sleeve (9.8). The two ends of the tension spring (9.9) are respectively connected to the tension sleeve (9.8) and the tension nut (9.10). The tension nut (9.10) is threadedly connected to the tension screw (9.7).

Images