Grinding tool grinding material feeding device

Abstract

The utility model provides a grinding tool grinding material feeding device which comprises a stock bin, a discharging pipe is fixedly connected to the lower end of the stock bin, a screen is installed on the upper portion in the discharging pipe, a top disc is arranged on the upper side of the stock bin, a connecting shaft is fixedly connected to the middle of the upper surface of the top disc, and a transverse plate rotationally connected with the connecting shaft is arranged on the connecting shaft in a sleeved mode. A second belt wheel is fixedly connected to the upper end of the connecting shaft and connected with a first belt wheel through a transmission belt, the first belt wheel is installed on a motor output shaft, a long round opening is formed in the side, away from the connecting shaft, of the upper surface of the transverse plate, and the motor output shaft penetrates through the long round opening. An electric push rod arranged in the length direction of the transverse plate is installed on the lower surface of the transverse plate, the movable end of the electric push rod is fixedly connected with a motor, and a plurality of stirring and dispersing rods are installed on the lower surface of the top disc.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary facilities for grinding tool and abrasive processing equipment, in particular to a grinding tool and abrasive feeding device. Background Art

[0002] Slices and grinding discs are mainly used as grinding tools for angle grinders, also known as "grinding wheels". The main processing process includes mixing, pressing, hardening (drying in a tunnel kiln), etc. Resin grinding wheels (resin grinding wheels are grinding wheels made of resin, such as phenolic, epoxy, polyurethane, polyvinyl alcohol, etc.; resin grinding wheels have high strength, and reinforcing fiber mesh and steel bars can be added to the grinding wheels, such as cutting discs and grinding discs) The mixture obtained after mixing needs to be placed in the tooling tray to stop the material. The material is stopped for 8-24 hours to stabilize the performance of the mixture before it can be placed in the pressing and molding system for pressing. During the process, the mixture in the tooling tray needs to be manually placed in the screening machine (with a screen). After the material passes through the screen and enters the feeding system, it is automatically fed into the pressing mold in a quantitative manner and transported to the molding mold to the next pressing position.

[0003] Since the mixture contains a certain amount of moisture and is exposed to the air during the material stoppage process, the mixture will clump after the material stoppage, and will not be dispersed enough and cannot be screened smoothly without separation. Therefore, the technicians designed a stirring component driven by a motor to be arranged in the silo. The motor drives the stirring component to rotate in the silo, so as to achieve the purpose of stirring the lumped mixture in the silo. However, when the motor stops unexpectedly and there is a lot of mixture in the silo, the stirring component is in the mixture in the silo. When the motor is started again, it needs to overcome the resistance of the mixture in the silo to the stirring component, that is, the load is large when the motor starts, and the motor is easily damaged due to the large load. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a grinding tool and abrasive feeding device to solve the problems raised in the above background technology. The utility model realizes no-load starting of the motor and plays a role in protecting the motor.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a grinding tool abrasive feeding device comprises a silo, the lower end of the silo is connected and fixed with a feeding pipe, the upper position of the feeding pipe is installed with a screen, the upper side of the silo is provided with a top plate, the middle position of the upper surface of the top plate is connected and fixed with a connecting shaft, the connecting shaft is sleeved with a cross plate rotatably connected with the connecting shaft, the upper end of the connecting shaft is connected and fixed with a second pulley, the second pulley is connected with the first pulley through a transmission belt, the first pulley is installed on the output shaft of the motor, the motor is installed on the side of the lower surface of the cross plate away from the connecting shaft, the upper surface of the cross plate away from the connecting shaft is provided with an oblong opening, the oblong opening is arranged along the length direction of the cross plate, the output shaft of the motor passes through the oblong opening, the lower surface of the cross plate is installed with an electric push rod arranged along the length direction of the cross plate, the movable end of the electric push rod is connected and fixed with the motor, a plurality of stirring rods are installed on the lower surface of the top plate, and the lower end of the stirring rod extends into the silo.

[0006] Furthermore, a plurality of limit plates arranged along the length direction of the horizontal plate are installed on the upper surface of the horizontal plate, two notches are opened on one side of the limit plate, the transmission belt passes through the notches, a connecting plate is connected and fixed to the lower position of one side of the limit plate, and the connecting plate is connected and fixed to the horizontal plate by screws.

[0007] Furthermore, a threaded hole is provided on the lower surface of the stirring rod, a threaded head is threadedly connected to the inner thread of the threaded hole, and one end of the threaded head located at the lower end of the stirring rod is connected and fixed with a column rod.

[0008] Furthermore, a plurality of blind holes are evenly formed on the lower surface of the top plate, and the upper ends of the stirring rods are connected and fixed in the blind holes.

[0009] Furthermore, an ear plate is connected and fixed to one end of the transverse plate away from the connecting shaft, the cylinder end of the electric push rod is connected and fixed to the ear plate, and a plurality of fixing holes are evenly opened on one side of the ear plate.

[0010] Furthermore, an axial hole is opened on the side of the upper surface of the horizontal plate away from the oblong mouth, the connecting shaft passes through the axial hole, a bearing is provided on the lower side of the axial hole, the bearing sleeve is arranged on the connecting shaft and the inner ring of the bearing is connected and fixed to the connecting shaft, and the outer ring of the bearing is connected and fixed to the horizontal plate.

[0011] Furthermore, a connecting ring which is connected and fixed to the feeding tube is sleeved on the outer surface of the lower end of the feeding tube, and a plurality of through holes which are equidistantly opened in a ring shape are formed on the upper surface of the connecting ring.

[0012] Beneficial Effects

[0013] 1. Before the mixed material for mold production is added into the silo, the utility model runs the motor, clicks on the transmission belt to drive the connecting shaft to rotate, and the connecting shaft drives multiple stirring rods on the top plate to rotate in the silo, thereby breaking up the agglomerated mixed material in the silo, making it convenient for the agglomerated mixed material to pass through the screen smoothly.

[0014] 2. When the utility model is used, when the motor stops unexpectedly and there is a large amount of mixed material in the silo, the electric push rod is first controlled to extend, and then the electric push rod drives the motor to move, and the output shaft of the motor moves along the long circular mouth. At this time, the distance between the first pulley and the second pulley is reduced. When the motor is started, the motor will not drive the connecting shaft to rotate through the transmission belt. At this time, the motor is in a no-load starting state, avoiding the motor from starting with load, which plays a role in protecting the motor. After the motor is started, the electric push rod is controlled to retract, so that the transmission belt is in a tensioned state. At this time, the motor can drive the connecting shaft to rotate through the transmission belt.

[0015] 3. The utility model installs multiple limit plates on the transverse plate, and allows the transmission belt to pass through the gap on the limit plate, so that the limit plate and the transverse plate cooperate with each other to prevent the loose transmission belt from falling at will, avoid artificial adjustment of the relative position of the transmission belt and the first pulley and the second pulley, and improve safety.

[0016] 4. When the utility model is in use, the threaded head on the column rod is threadedly connected to the threaded hole on the stirring rod to realize the rotational connection between the column rod and the stirring rod. At this time, the column rod is in the silo and contacts the mixed material in the silo. When the column rod is worn, it only needs to be replaced without replacing the stirring rod, thereby reducing the replacement cost of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a grinding tool abrasive feeding device of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of a horizontal plate in a grinding tool and abrasive feeding device of the utility model;

[0019] Figure 3 It is a schematic diagram of the assembly of a screen, a feed pipe and a silo in a grinding tool abrasive feeding device of the utility model;

[0020] Figure 4 It is a schematic diagram of the assembly of a column rod, a stirring rod and a top plate in a grinding tool abrasive feeding device of the utility model;

[0021] Figure 5 It is a three-dimensional diagram of a limit plate in a grinding tool abrasive feeding device of the utility model;

[0022] Figure numerals: 1- silo, 2- discharge pipe, 3- connecting ring, 4- motor, 5- electric push rod, 6- ear plate, 7- horizontal plate, 8- first pulley, 9- transmission belt, 10- limit plate, 11- second pulley, 12- connecting shaft, 13- top plate, 14- stirring rod, 15- oblong mouth, 16- shaft hole, 17- screen, 18- notch, 19- connecting plate, 20- column rod. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0024] Embodiment 1. A grinding tool abrasive feeding device, the structure of which is shown in FIG. Figure 1 and 3 , including a silo 1, a feeding pipe 2 is connected and fixed at the lower end of the silo 1, a screen 17 is installed at the upper position inside the feeding pipe 2, a connecting ring 3 connected and fixed to the feeding pipe 2 is sleeved on the outer surface of the lower end of the feeding pipe 2, and a plurality of through holes are equidistantly opened on the upper surface of the connecting ring 3 in an annular shape, so that bolts can be passed through the through holes and installed at the desired position, thereby completing the restriction of the position of the silo 1.

[0025] See also Figure 1 and Figure 2 A top plate 13 is provided on the upper side of the silo 1, and a connecting shaft 12 is connected and fixed to the middle position of the upper surface of the top plate 13. A horizontal plate 7 rotatably connected to the connecting shaft 12 is sleeved on the connecting shaft 12, wherein an axial hole 16 is opened on the side of the upper surface of the horizontal plate 7 away from the oblong mouth 15, and the connecting shaft 12 passes through the axial hole 16, and a bearing is provided on the lower side of the axial hole 16. The bearing is sleeved on the connecting shaft 12, and the inner ring of the bearing is connected and fixed to the connecting shaft 12, and the outer ring of the bearing is connected and fixed to the horizontal plate 7. The bearing realizes the rotational connection between the connecting shaft 12 and the horizontal plate 7, and an ear plate 6 is connected and fixed to the end of the horizontal plate 7 away from the connecting shaft 12, and a plurality of fixing holes are evenly opened on one side of the ear plate 6. The ear plate 6 is installed at a desired position by bolts to limit the position of the horizontal plate 7.

[0026] See also Figure 1 , Figure 2 and Figure 4A second pulley 11 is connected and fixed to the upper end of the connecting shaft 12, and the second pulley 11 is connected to the first pulley 8 through a transmission belt 9. The first pulley 8 is installed on the output shaft of the motor 4, and the motor 4 is installed on the side of the lower surface of the cross plate 7 away from the connecting shaft 12. An oblong opening 15 is opened on the upper surface of the cross plate 7 away from the connecting shaft 12, and the oblong opening 15 is arranged along the length direction of the cross plate 7. The output shaft of the motor 4 passes through the oblong opening 15, and a plurality of stirring rods 14 are installed on the lower surface of the top plate 13. The lower end of the stirring rod 14 extends into the silo 1. Before adding the mixed material for mold production into the silo 1, run the motor 4, click to drive the connecting shaft 12 to rotate through the transmission belt 9, and the connecting shaft 12 drives the plurality of stirring rods 14 on the top plate 13 to rotate in the silo 1, so as to break up the agglomerated mixed material in the silo 1, so that the agglomerated mixed material can pass through the screen 17 smoothly.

[0027] See also Figure 1 , Figure 2 and Figure 3 , an electric push rod 5 arranged along the length direction of the horizontal plate 7 is installed on the lower surface of the horizontal plate 7, wherein the cylinder end of the electric push rod 5 is connected and fixed to the ear plate 6, and the movable end of the electric push rod 5 is connected and fixed to the motor 4. When the motor 4 stops unexpectedly and there is a lot of mixed material in the silo 1, the electric push rod 5 is first controlled to extend, and then the electric push rod 5 drives the motor 4 to move, and the output shaft of the motor 4 moves along the oblong mouth 15. At this time, the distance between the first pulley 8 and the second pulley 11 is reduced. When the motor 4 is started, the motor 4 will not drive the connecting shaft 12 to rotate through the transmission belt 9. At this time, the motor 4 is in a no-load starting state, avoiding the motor 4 from starting with load, which plays a role in protecting the motor 4. After the motor 4 is started, the electric push rod 5 is controlled to retract, so that the transmission belt 9 is in a tensioned state. At this time, the motor 4 can drive the connecting shaft 12 to rotate through the transmission belt 9.

[0028] See also Figure 1 and Figure 5 A plurality of limit plates 10 arranged along the length direction of the transverse plate 7 are installed on the upper surface of the transverse plate 7. Two notches 18 are opened on one side of the limit plate 10, and the transmission belt 9 passes through the notch 18. A connecting plate 19 is connected and fixed to the lower position of one side of the limit plate 10. The connecting plate 19 is connected and fixed to the transverse plate 7 by screws. A plurality of limit plates 10 are installed on the transverse plate 7, and the transmission belt 9 passes through the notch 18 on the limit plate 10, so that the limit plate 10 cooperates with the transverse plate 7 to prevent the loose transmission belt 9 from falling at will, avoid artificial adjustment of the relative position of the transmission belt 9 and the first pulley 8 and the second pulley 11, and improve safety.

[0029] See also Figure 4A threaded hole is provided on the lower surface of the stirring rod 14, and a threaded head is threadedly connected in the threaded hole. The threaded head is located at one end of the lower end of the stirring rod 14 and is connected and fixed to a column rod 20. A plurality of blind holes are evenly provided on the lower surface of the top plate 13, so that the upper end of the stirring rod 14 is connected and fixed in the blind hole, thereby improving the connection stability between the stirring rod 14 and the top plate 13, so that the threaded head on the column rod 20 is threadedly connected to the threaded hole on the stirring rod 14, thereby realizing the rotational connection between the column rod 20 and the stirring rod 14. At this time, the column rod 20 is in the silo 1 and contacts with the mixed material in the silo 1. When the column rod 20 is worn, it only needs to be replaced without replacing the stirring rod 14, thereby reducing the replacement cost of parts.

[0030] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A grinding tool abrasive feeding device, comprising a silo (1), characterized in that: The lower end of the silo (1) is connected and fixed with a feed pipe (2), and a screen (17) is installed at the upper position of the feed pipe (2); a top plate (13) is provided on the upper side of the silo (1), and a connecting shaft (12) is connected and fixed at the middle position of the upper surface of the top plate (13), and a transverse plate (7) is sleeved on the connecting shaft (12) and is rotatably connected to the connecting shaft (12); a second pulley (11) is connected and fixed to the upper end of the connecting shaft (12), and the second pulley (11) is connected to the first pulley (8) through a transmission belt (9), and the first pulley (8) is installed on the output shaft of the motor (4), and the motor (4) The cross plate (7) is mounted on a side of the lower surface away from the connecting shaft (12); a long round opening (15) is provided on a side of the upper surface of the cross plate (7) away from the connecting shaft (12); the long round opening (15) is arranged along the length direction of the cross plate (7); the output shaft of the motor (4) passes through the long round opening (15); an electric push rod (5) is mounted on the lower surface of the cross plate (7) and is arranged along the length direction of the cross plate (7); the movable end of the electric push rod (5) is connected and fixed to the motor (4); a plurality of stirring rods (14) are mounted on the lower surface of the top plate (13); the lower ends of the stirring rods (14) extend into the silo (1).

2. The abrasive tool feeding device according to claim 1, characterized in that: A plurality of limit plates (10) are mounted on the upper surface of the transverse plate (7) and are arranged along the length direction of the transverse plate (7); two notches (18) are provided on one side of the limit plate (10); the transmission belt (9) passes through the notches (18); a connecting plate (19) is connected and fixed to the lower part of one side of the limit plate (10); the connecting plate (19) is connected and fixed to the transverse plate (7) by screws.

3. The abrasive tool feeding device according to claim 1, characterized in that: A threaded hole is formed on the lower surface of the stirring rod (14), a threaded head is threadedly connected to the threaded hole, and a column rod (20) is connected and fixed to one end of the threaded head located at the lower end of the stirring rod (14).

4. The abrasive tool feeding device according to claim 1, characterized in that: A plurality of blind holes are evenly formed on the lower surface of the top plate (13); the upper ends of the stirring rods (14) are connected and fixed in the blind holes.

5. The abrasive feeding device for abrasive tool according to claim 1, characterized in that: An end of the transverse plate (7) away from the connecting shaft (12) is connected and fixed with an ear plate (6); the cylinder end of the electric push rod (5) is connected and fixed to the ear plate (6), and a plurality of fixing holes are evenly opened on one side of the ear plate (6).

6. The abrasive tool feeding device according to claim 1, characterized in that: An axial hole (16) is formed on the upper surface of the transverse plate (7) at a side away from the oblong opening (15); the connecting shaft (12) passes through the axial hole (16); a bearing is provided on the lower side of the axial hole (16); the bearing sleeve is arranged on the connecting shaft (12); the inner ring of the bearing is connected and fixed to the connecting shaft (12); and the outer ring of the bearing is connected and fixed to the transverse plate (7).

7. The abrasive tool feeding device according to claim 1, characterized in that: The outer surface of the lower end of the feed tube (2) is sleeved with a connecting ring (3) which is connected and fixed to the feed tube (2), and the upper surface of the connecting ring (3) is provided with a plurality of through holes at equal intervals in the shape of a ring.

Images