A device capable of realizing accurate positioning of a barrel

Abstract

The present invention relates to a device capable of realizing accurate positioning of a barrel, comprising a rotating mechanism, a driving mechanism, and a limiting mechanism. The rotating mechanism comprises a barrel, a turntable, a push rod, and a base; the driving mechanism comprises a swing arm, a bump block, a main torsion spring, a main lever, a main limiting block, a piston rod support, a cylinder, and a cylinder seat; and the limiting mechanism comprises a rear stopper, a rear limiting block, a rear support, a rear torsion spring, a front support, an adjustable bolt, a tension spring, a front stopper, a rotating shaft, and a front limiting rod. The swing arm is driven by the cylinder to move a stroke, and the swing arm drives the main lever to drive the push rod to rotate the turntable to a certain angle, so that the barrels evenly distributed on the turntable rotate with the turntable by one station, and the front stopper and the rear stopper are arranged to ensure the accurate limiting of the turntable. The present invention has a simple structure, reliable operation, and accurate positioning, shortens the material taking and weighing cycle from the current barrel to the next barrel, reduces the operating cost, and improves the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ingredient weighing, and in particular to a device capable of realizing accurate positioning of a material barrel. Background Art

[0002] Rubber refining is the first and most important production process for manufacturing rubber products. The efficiency of rubber refining directly affects the production efficiency of the entire rubber product. The general process flow of rubber refining is: weighing, mixing and quality inspection of raw materials, which includes weighing a large number of different types of small powders. In actual production, for general formulas, a fully automatic batching and weighing system is usually used; for non-general formulas, in order to reduce equipment costs and reduce floor space, a fully manual batching and weighing device or a semi-automatic batching and weighing device is usually used. The current semi-automatic batching and weighing device usually adopts a motor drive mode to rotate the material barrel that needs to be weighed and taken to the designated station. Due to the frequent start and stop of the motor, the service life of the motor is shortened. Due to the inertia of the motor, it is difficult to accurately position the device, which not only increases the operating cost of the batching and weighing, but also affects the work efficiency of the batching and weighing. A device for accurately positioning a barrel is proposed, which includes a rotating mechanism, a driving mechanism, and a limiting mechanism. The swing arm is driven by a cylinder to move a stroke, and the swing arm drives the main lever to drive the push rod to rotate the turntable by a certain angle. The barrels evenly distributed on the turntable rotate one station with the turntable. The front and rear stop rods can ensure the accurate positioning of the barrels. The invention has a simple structure, reliable operation, and accurate positioning. It shortens the material weighing cycle from the current barrel to the next barrel, reduces operating costs, and improves production efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a device that can realize accurate positioning of material barrels. The swing arm is driven by a cylinder to move a stroke, and the swing arm drives the main lever to drive the push rod to rotate the turntable by a certain angle. The material barrels evenly distributed on the turntable rotate one station with the turntable, thereby achieving a simple structure, reliable operation, and accurate positioning, thereby shortening the material weighing cycle from the current material barrel to the next material barrel, reducing operating costs, and improving production efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solution: a device capable of realizing accurate positioning of a barrel, comprising a rotating mechanism, a driving mechanism, and a limiting mechanism. The rotating mechanism comprises a barrel, a turntable, a push rod, and a base; the driving mechanism comprises a swing arm, a bump block, a main torsion spring, a main lever, a main limiting block, a piston rod support, a cylinder, and a cylinder seat; the limiting mechanism comprises a rear stopper, a rear limiting block, a rear support, a rear torsion spring, a front support, an adjustable bolt, a tension spring, a front stopper, a rotating shaft, and a front limiting rod.

[0005] Furthermore, the turntable has a regular octagonal structure and is mounted on the central axis of the base through a rolling bearing. Eight material barrels are evenly placed near the eight corners on the upper part of the turntable. A push rod is vertically welded in the middle of each of the lower eight sides of the turntable, and the cross-section of the push rod is a quadrilateral.

[0006] Furthermore, the cylinder is hinged on the cylinder seat, the cylinder seat is fixed on the base, one end of the piston rod support is hinged to the piston rod head of the cylinder, and the other end is fixed to the swing arm with bolts.

[0007] Furthermore, one end of the swing arm is sleeved on the central axis of the base through a rolling bearing, driven by a cylinder and rotates with the center of the turntable as the center of a circle, and the other end is provided with a main limit block and is hinged to a main lever, and a main torsion spring is installed at the hinge between the main lever and the swing arm, and the main lever is limited by the main limit block. A bump block is fixedly connected to one side of the swing arm, and the bump block material is hard rubber.

[0008] Furthermore, the front stopper rotates around the rotating shaft, the rotating shaft is located in the middle of the front stopper and is fixed on the base, the front limit rod is located between the rotating shaft and the tension spring and is fixed on the base, one end of the tension spring is connected to the end of the front stopper, and the other end is fixed to the front support by an adjustable bolt, the front support is fixed on the base, and the front stopper is limited by the front limit rod.

[0009] Furthermore, the end of the rear stopper is hinged on the rear support, a rear torsion spring is installed at the hinge, the rear support is fixed on the base, a rear limit block is arranged on the rear support, and the rear stopper is limited by the rear limit block.

[0010] Furthermore, the working surface of the rear gear rod contacts the thrust surface of the push rod, and the working surface of the front gear rod contacts the back of the thrust surface of the push rod. The central axes of the working surfaces of the rear gear rod and the front gear rod both point to the center of the turntable. When the piston rod of the cylinder moves forward one stroke, the bump block just contacts the working surface of the front gear rod.

[0011] The technical solution of the present invention brings the following beneficial effects:

[0012] The device for accurately positioning the barrels described in the present invention drives the swing arm to move a stroke through the cylinder, and the swing arm drives the main lever to drive the push rod to rotate the turntable by a certain angle, and the barrels evenly distributed on the turntable rotate one station with the turntable, and the front and rear stop rods can ensure the accurate positioning of the barrels. The device achieves the purpose of simple structure, reliable operation and accurate positioning, shortens the material weighing cycle from the current barrel to the next barrel, reduces the operating cost and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : A schematic diagram of the structure of the device capable of realizing accurate positioning of the barrel of the present invention;

[0014] Figure 2: Position diagram of various components after the cylinder piston rod is extended;

[0015] Figure 3 : Enlarged schematic diagram of the rear gear lever;

[0016] Figure 4 : Enlarged schematic diagram of the front gear lever;

[0017] Figure 5 : Enlarged diagram of the main lever.

[0018] Among them, 1. material barrel, 2. turntable, 3. push rod, 4. rear stop rod, 5. rear limit block, 6. rear support, 7. rear torsion spring, 8. front support, 9. adjustable bolt, 10. tension spring, 11. front stop rod, 12. rotating shaft, 13. front limit rod, 14. swing arm, 15. bump block, 16. main torsion spring, 17. main lever, 18. main limit block, 19. piston rod support, 20. cylinder, 21. cylinder seat, 22. base. DETAILED DESCRIPTION

[0019] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0020] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a device for realizing accurate positioning of a barrel includes a rotating mechanism, a driving mechanism, and a limiting mechanism. The rotating mechanism includes a barrel 1, a turntable 2, a push rod 3, and a base 22. The driving mechanism includes a swing arm 14, a bump block 15, a main torsion spring 16, a main lever 17, a main limiting block 18, a piston rod support 19, a cylinder 20, and a cylinder seat 21. The limiting mechanism includes a rear stopper 4, a rear limiting block 5, a rear support 6, a rear torsion spring 7, a front support 8, an adjustable bolt 9, a tension spring 10, a front stopper 11, a rotating shaft 12, and a front limiting rod 13. The turntable 2 is a regular octagonal structure. The turntable 2 is mounted on the central axis of the base 22 through a rolling bearing. Eight barrels 1 are evenly placed near the eight corners on the upper part of the turntable 2. A push rod 3 is vertically welded at the middle position of each of the eight lower sides of the turntable 2. The cross section of the push rod 3 is a quadrilateral. The cylinder 20 is hinged on the cylinder seat 21, and the cylinder seat 21 is fixed on the base 22. One end of the piston rod support 19 is hinged to the piston rod head of the cylinder 20, and the other end is bolted to the swing arm 14. One end of the swing arm 14 is sleeved on the central axis of the base 22 through a rolling bearing, driven by the cylinder 20 and rotated with the center of the turntable 2 as the center of the circle, and the other end is provided with a main limit block 18 and hinged to the main lever 17. The main lever 17 is hinged with the swing arm 14. The main lever 17 is limited by the main limit block 18. A bump block 15 is fixed to one side of the swing arm 14, and the material of the bump block 15 is hard rubber. The front stopper 11 rotates around the rotating shaft 12, the rotating shaft 12 is located in the middle of the front stopper 11 and fixed on the base 22, the front limit rod 13 is located between the rotating shaft 12 and the tension spring 10, and fixed on the base 22, one end of the tension spring 10 is connected to the end of the front stopper 11, and the other end is fixed to the front support 8 through an adjustable bolt 9, the front support 8 is fixed on the base 22, and the front stopper 11 is limited by the front limit rod 13. The end of the rear stopper 4 is hinged on the rear support 6, and a rear torsion spring 7 is installed at the hinge, the rear support 6 is fixed on the base 22, and a rear limit block 5 is provided on the rear support 6, and the rear stopper 4 is limited by the rear limit block 5. The working surface of the rear stop rod 4 contacts the thrust surface of the push rod 3, and the working surface of the front stop rod 11 contacts the back side of the thrust surface of the push rod 3. The central axes of the working surfaces of the rear stop rod 4 and the front stop rod 11 both point to the center of the turntable 2. When the piston rod of the cylinder 20 moves forward one stroke, the bump block 15 just contacts the working surface of the front stop rod 11.

[0021] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, before the cylinder 20 starts to move, the piston rod of the cylinder 20 is in a retracted state, and the main lever 17 is pressed against the main limit block 18 under the action of the main torsion spring 16, and the main lever 17 is located on the thrust surface side of the push rod 3. The front lever 11 is close to the front limit lever 13 under the action of the tension spring 10, and the front lever 11 is located on the back of the thrust surface of the push rod 3 to prevent the turntable 2 from rotating counterclockwise, and the push rod 3 at the position of the front lever 11 is adjacent to the push rod 3 at the position of the main lever 17, and the rear lever 4 is pressed against the rear limit block 5 under the action of the rear torsion spring 7, and the rear lever 4 is located on the thrust surface side of the push rod 3 to prevent the turntable 2 from rotating clockwise, and the push rod 3 at the position of the rear lever 4 is adjacent to the push rod 3 at the position of the front lever 11. When the material barrel 1 at the operating station has been weighed and the next material barrel 1 is required to fill the current operating station, the piston rod of the cylinder 20 on the cylinder seat 21 fixed on the base extends out, and drives the swing arm 14 and the main lever 17 to rotate together through the hinged piston rod support 19. The piston rod travels a stroke, and the main lever 17 contacts the thrust surface of the push rod 3, pushing the push rod 3 together with the turntable 2 and the material barrel 1 thereon to rotate 22.5° counterclockwise, that is, one station. At the same time, the rotation of the main push rod 3 causes the front stopper 11 to be stressed, and the front stopper 11 overcomes the tension of the tension spring 10 and rotates counterclockwise around the rotating shaft 12. The push rod 3 rotates over the front stopper 11, and the front stopper 11 leaves the push rod 3 and rotates back to the initial position under the action of the tension spring 10. When the piston rod stroke of the cylinder 20 is about to end, the counterclockwise rotating main push rod 3 hits the rear stop rod 4 fixed on the rear support 6, and the rear stop rod 4 overcomes the spring force of the rear torsion spring 7 and rotates counterclockwise over the push rod 3. Then, under the spring force of the rear torsion spring 7, the rear stop rod 4 rotates back to its original position. When the piston rod stroke of the cylinder 20 ends, the rear stop rod 4 just touches the thrust surface of the push rod 3, avoiding the possible clockwise rotation of the turntable 2. In addition, when the piston rod stroke of the cylinder 20 ends, the swing arm 14 and the main lever 17 stop rotating, and the bumper 15 fixed to one side of the swing arm 14 just touches the working surface of the front stop rod 11. At this time, the push rod 3 is also just between the main lever 17 and the front stop rod 11. Under the restriction of the front limit rod 13, the turntable 2 is accurately fixed, and the barrel 1 just rotates one station. Then the batching and weighing work can be carried out. At the same time, the piston rod of the cylinder 20 retracts, driving the swing arm 14 to rotate clockwise together with the main lever 17. When the stroke is about to end, the back of the main lever 17 contacts the next push rod 3. The main lever 17 overcomes the spring force of the main torsion spring 16, rotates over the push rod 3, and the main lever 17 is reset under the spring force of the main torsion spring 16. When the piston rod of the cylinder 20 retracts to its position, the swing arm 14 rotates to the initial position. After the batching and weighing of the barrel 1 at the operating station is completed, the above action is repeated to carry out the batching and weighing of the next barrel 1. Since the rear stopper 4 limits the clockwise rotation of the turntable 2, and the front stopper 11 limits the counterclockwise rotation of the turntable 2, the position of the barrel 1 at the operating station is accurate every time.

[0022] The above description is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make various modifications and improvements without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.

Claims

1. A device for accurately positioning a barrel, characterized in that: The invention comprises a rotating mechanism, a driving mechanism and a limiting mechanism. The rotating mechanism comprises a material barrel (1), a rotating disk (2), a push rod (3) and a base (22). The driving mechanism comprises a swing arm (14), a bump block (15), a main torsion spring (16), a main lever (17), a main limiting block (18), a piston rod support (19), a cylinder (20) and a cylinder seat (21). The limiting mechanism comprises a rear stopper (4), a rear limiting block (5), a rear support (6), a rear torsion spring (7), a front support (8), an adjustable bolt (9), a tension spring (10), a front stopper (11), a rotating shaft (12) and a front limiting rod (13). The rotating disk (2) is a regular octagonal structure. The rotating disk (2) is mounted to the center of the base (22) via a rolling bearing sleeve. On the spindle, 8 material barrels (1) are evenly placed near eight corners on the upper part of the turntable (2), and a push rod (3) is vertically welded at the middle position of the lower part of the eight sides of the turntable (2). The cross section of the push rod (3) is a quadrilateral. The cylinder (20) is hinged on the cylinder seat (21), and the cylinder seat (21) is fixed on the base (22). One end of the piston rod support (19) is hinged to the piston rod head of the cylinder (20), and the other end is fixed to the swing arm (14) with bolts. One end of the swing arm (14) is sleeved on the central axis of the base (22) through a rolling bearing, driven by the cylinder (20) and rotated with the center of the turntable (2) as the center of the circle, and the other end is provided with a main limit block (18) and is hinged to the main lever (17). A main torsion spring (16) is installed at the hinge between the main lever (17) and the swing arm (14); the main lever (17) is limited by a main limit block (18); a bump block (15) is fixedly connected to one side of the swing arm (14); the bump block (15) is made of hard rubber; the front stopper (11) rotates around a rotating shaft (12); the rotating shaft (12) is located in the middle of the front stopper (11) and is fixed on a base (22); the front limiter (13) is located between the rotating shaft (12) and the tension spring (10) and is fixed on the base (22); one end of the tension spring (10) is connected to the end of the front stopper (11); the other end is fixed to a front support (8) by an adjustable bolt (9); the front support (8) is fixed on the base (22); The front stop rod (11) is limited by the front limit rod (13), the end of the rear stop rod (4) is hinged on the rear support (6), a rear torsion spring (7) is installed at the hinge, the rear support (6) is fixed on the base (22), a rear limit block (5) is provided on the rear support (6), the rear stop rod (4) is limited by the rear limit block (5), the working surface of the rear stop rod (4) contacts the thrust surface of the push rod (3), the working surface of the front stop rod (11) contacts the back surface of the thrust surface of the push rod (3), the central axes of the working surfaces of the rear stop rod (4) and the front stop rod (11) both point to the center of the turntable (2), and when the piston rod of the cylinder (20) moves forward one stroke, the bump block (15) just contacts the working surface of the front stop rod (11).

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