Automatic feeding device for cutting pick production line

Abstract

The utility model relates to an automatic feeding device for a cutting pick production line, which comprises a conveying mechanism, a plurality of L-shaped supports are arranged on the conveying mechanism, a base is arranged on the horizontal parts of the supports, an L-shaped air channel is arranged in the base, a first limiting column is detachably arranged on the top of the base on the peripheral side of the top end of the L-shaped air channel, and a first limiting groove is formed in the first limiting column. A motor is arranged on the vertical part of the support, an output shaft of the motor is upwards and fixedly connected with a rotating plate, a first hydraulic cylinder is arranged at the tail end of the rotating plate, a piston rod of the first hydraulic cylinder is downwards and fixedly connected with a top seat, and an inverted-L-shaped air channel is formed in the top seat; a second limiting column is detachably arranged on the portion, on the periphery of the bottom end of the inverted-L-shaped air channel, of the top base, a second limiting groove is formed in the second limiting column and communicates with the inverted-L-shaped air channel, and the top end of the inverted-L-shaped air channel communicates with a second exhaust pipe. The automatic feeding and fixing device can realize automatic feeding and fixing of the base body and the alloy head, and is simpler, more convenient and safer to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of pick production, and particularly relates to an automatic feeding device for a pick production line. Background Art

[0002] Cutting picks are divided into coal mining machine cutting picks and roadheader cutting picks. They are parts of mining and tunneling machines used in mining and tunnel construction. The production process of cutting picks mainly includes the processing and forming of the base, brazing of the carbide tip, quenching, tempering, sandblasting, surface treatment, and assembly of the pick. The brazing of the carbide tip mainly involves using brazing technology to fix the carbide tip to the pick base. The carbide tip is usually composed of materials such as tungsten carbide and cobalt powder, and has extremely high hardness and wear resistance, which can improve the cutting efficiency and durability of the pick. However, the existing brazing process often requires manual loading and fixing the pick base to the brazing station. The brazing sheet in the connection hole at the top of the base is then heated and melted. The lower part of the alloy tip is then manually squeezed into the connection hole so that the molten welding liquid surrounds the lower part of the alloy tip, completing the brazing. The overall process requires a lot of manual operation, which is cumbersome, time-consuming, and labor-intensive. The operation safety is also low, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an automatic feeding device for a pick production line to solve the above problems.

[0004] The cam is secured to the upper portion of the base and has an L-shaped support structure that is arranged on the upper portion of the base so as to allow the cam to move relative to the lower portion of the base. The top of the inverted L-shaped airway passes through the side of the top seat and is fixedly connected to a second exhaust pipe. The second exhaust pipe is fixedly connected to a second pressure relief pipe on one end close to the top seat. The second pressure relief pipe and the second exhaust pipe are far away from the top seat. A second solenoid valve is provided on one end of the seat, a vacuum pump is fixedly provided on the side of the vertical part of the support away from the horizontal part thereof, the first exhaust pipe is connected with the exhaust port of the vacuum pump through a delivery pipe, the second exhaust pipe is connected with the exhaust port of the vacuum pump through a delivery hose, a second hydraulic cylinder is vertically fixed above the conveying mechanism, the piston rod of the second hydraulic cylinder is downward and fixedly connected to a lifting plate, the bottom of the lifting plate is fixedly connected to an induction coil, and the induction coil can be sleeved on the outside of the first limit column.

[0005] Preferably, the first limiting groove is adapted to the lower portion of the pick base.

[0006] Preferably, the lower fixed sleeve of the first limiting column is provided with a first mounting seat, and a plurality of first blind holes are opened on the left and right sides of the first mounting seat, and the upper parts of the left and right sides of the base are embedded with first electric push rods, and the telescopic end of the first electric push rod faces the side away from the base and is fixedly connected to the first vertical plate, and a plurality of first plug rods are fixed on the upper part of the side of the first vertical plate close to the base, and the first mounting seat abuts against the top of the base, and the first plug rods correspond one-to-one to the first blind holes on the same side and are plugged in.

[0007] Preferably, the first mounting seat is adapted to the base, and the first insertion rod is adapted to the corresponding first blind hole.

[0008] Preferably, the second limiting groove is adapted to the upper portion of the cemented carbide head.

[0009] Preferably, the upper fixed sleeve of the second limiting column is provided with a second mounting seat, and a plurality of second blind holes are opened on the left and right sides of the second mounting seat, and the lower parts of the left and right sides of the top seat are embedded with second electric push rods, the telescopic ends of the second electric push rods face the side away from the top seat and are fixedly connected to the second vertical plate, and a plurality of second plug rods are fixed on the lower part of the side of the second vertical plate close to the top seat, and the second mounting seat abuts against the bottom of the top seat, and the second plug rods correspond one-to-one to the second blind holes on the same side and are plugged in and connected.

[0010] Preferably, the second mounting seat is matched with the top seat, and the second insertion rod is matched with the corresponding second blind hole.

[0011] The utility model has the following beneficial effects: during the brazing process of picks, a plurality of supports can be driven by a conveyor mechanism to move stepwise from left to right, and in an initial state, a rotating plate is located above the side of the support away from its horizontal portion. The left side of the conveyor mechanism is a loading area, and the vacuum pumps on each support are in operation. A worker can insert a pick base containing a brazing sheet into a first limiting groove on the support passing by, and insert a carbide head into a second limiting groove on the support passing by. Under the vacuum pump's pumping action, the first limiting groove and the second limiting groove are both in a negative pressure state, thereby firmly holding the corresponding pick base and carbide head. When the support moves below the lifting plate, the second hydraulic cylinder is actuated, and its piston rod is extended, which can drive the lifting plate and the induction coil to move downward synchronously until the induction coil is sleeved on the upper outer side of the pick base on the corresponding support. Then, the induction coil is energized to heat the pick base, causing the brazing sheet in the connecting hole on the upper part of the pick base to melt into liquid. After heating and melting, the induction coil moves upward and resets, and the corresponding support continues to move stepwise. After reaching the right side, the motor starts to operate, driving the rotating plate to rotate 180 degrees, so that the carbide head and the pick base are coaxial. Then, the first hydraulic cylinder is activated, and its piston rod extends, which drives the carbide head as a whole downward, squeezing the lower part of the carbide head into the connection hole of the pick base, so that the molten welding liquid surrounds the lower part of the carbide head, thus completing the brazing. Next, the second solenoid valve on the second exhaust pipe is closed, and the second solenoid valve on the second pressure relief pipe is opened, which restores positive pressure to the second limit groove, thereby releasing the adsorption of the carbide head. The top seat then moves upward and resets, and the motor drives the rotating plate to rotate 180 degrees again, returning the top seat to its original position. Afterwards, the vacuum pump stops running, and the first solenoid valve on the first exhaust pipe is closed, and the first solenoid valve on the first pressure relief pipe is opened, so that the positive pressure can be restored at the first limit groove, thereby releasing the adsorption of the pick base, and the staff can then take the brazed pick out of the first limit groove. In this way, the entire brazing process is more continuous and automated. The overall operation only requires manual placement of the pick base and the carbide head into the corresponding first and second limit grooves before brazing, and manual removal of the pick after brazing. The loading, fixing, conveying, heating, melting, and extrusion brazing operations in the process can all be automated, making the operation simpler and more convenient, saving time and effort, and having higher operational safety, making it more convenient and practical. In addition, the detachable connection between the first limit column and the base and the detachable connection between the second limit column and the top seat can realize convenient disassembly and assembly of the first limit column and the second limit column, that is, the first limit groove and the second limit groove can be flexibly adjusted, thereby meeting the loading requirements of pick bases and carbide heads of different specifications and sizes. It has a wide range of applications and is more flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the support and the equipment thereon of the utility model;

[0014] Figure 3 This is a schematic diagram of the main structure of the base of the utility model;

[0015] Figure 4 This is a schematic diagram of the main structure of the first limiting column of the utility model;

[0016] Figure 5 This is a schematic diagram of the main structure of the utility model when the first limiting column is connected to the base;

[0017] Figure 6 This is a schematic diagram of the main structure of the top seat of the utility model;

[0018] Figure 7 This is a schematic diagram of the main structure of the second limiting column of the utility model;

[0019] Figure 8 This is a schematic diagram of the main structure of the utility model when the second limiting column is connected to the top seat;

[0020] Figure 9 It is a schematic diagram of the main structure of the pick base and the cemented carbide head of the utility model.

[0021] Numbers in the figure: 1 is a transmission mechanism, 2 is a support, 3 is a base, 4 is an L-shaped airway, 5 is a first limiting column, 6 is a first limiting groove, 7 is a first air extraction pipe, 8 is a first pressure relief pipe, 9 is a first solenoid valve, 10 is a motor, 11 is a rotating plate, 12 is a first hydraulic cylinder, 13 is a top seat, 14 is an inverted L-shaped airway, 15 is a second limiting column, 16 is a second limiting groove, 17 is a second air extraction pipe, 18 is a second pressure relief pipe, 19 is a second solenoid valve, 20 is Vacuum pump, 21 is the delivery pipe, 22 is the delivery hose, 23 is the second hydraulic cylinder, 24 is the lifting plate, 25 is the induction coil, 26 is the first mounting seat, 27 is the first blind hole, 28 is the first electric push rod, 29 is the first vertical plate, 30 is the first insertion rod, 31 is the second mounting seat, 32 is the second blind hole, 33 is the second electric push rod, 34 is the second vertical plate, 35 is the second insertion rod, 36 is the pick base, 37 is the connecting hole, and 38 is the carbide head. DETAILED DESCRIPTION

[0022] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0023] like Figures 1 to 9As shown, an automatic loading device for a pick cutting production line includes a conveying mechanism 1, on which a plurality of L-shaped supports 2 evenly spaced along the conveying direction are fixedly mounted, and a base 3 is fixedly mounted on the top of the horizontal part of the support 2, and an L-shaped air duct 4 is opened inside the base 3, and a first limiting column 5 is detachably provided on the top of the base 3 on the peripheral side of the top end of the L-shaped air duct 4, and a first limiting groove 6 is coaxially opened on the first limiting column 5, and the first limiting groove 6 is connected to the L-shaped air duct 4, and the bottom end of the L-shaped air duct 4 passes through the side of the base 3 and is fixedly connected to a first exhaust pipe 7, and the first exhaust pipe 7 is fixedly connected to a first pressure relief pipe 8 on the end close to the base 3, and a first solenoid valve 9 is provided on the first pressure relief pipe 8 and on the end of the first exhaust pipe 7 away from the base 3. The top of the vertical part of the support 2 is fixedly mounted with a motor 10, and the output shaft of the motor 10 is facing upward and fixedly connected to a rotating plate 11. A first hydraulic cylinder 12 is vertically penetrated and fixedly provided on the tail end of the rotating plate 11, and the piston rod of the first hydraulic cylinder 12 is facing downward and fixedly connected to a top seat 13. An inverted L-shaped air duct 14 is opened inside the top seat 13, and a second limiting column 15 is detachably provided on the bottom of the top seat 13 around the bottom end of the inverted L-shaped air duct 14. A second limiting groove 16 is coaxially opened on the second limiting column 15. The second limiting groove 16 can be coaxially arranged with the first limiting groove 6 and is connected to the inverted L-shaped air duct 14. The top of the inverted L-shaped air duct 14 passes through the side of the top seat 13 and is fixedly connected to a second exhaust pipe 17. A second pressure relief pipe 18 is fixedly connected to the end of the second exhaust pipe 17 close to the top seat 13, and a second solenoid valve 19 is provided on the second pressure relief pipe 18 and the end of the second exhaust pipe 17 away from the top seat 13. A vacuum pump 20 is fixedly mounted on the side of the vertical portion of the support 2, away from the horizontal portion. The first exhaust pipe 7 is connected to the exhaust port of the vacuum pump 20 via a delivery pipe 21, and the second exhaust pipe 17 is connected to the exhaust port of the vacuum pump 20 via a delivery hose 22. A second hydraulic cylinder 23 is vertically fixed above the conveying mechanism 1. The piston rod of the second hydraulic cylinder 23 faces downward and is fixedly connected to a lifting plate 24. The bottom of the lifting plate 24 is fixedly connected to an induction coil 25, which can be mounted on the outside of the first limiting column 5.

[0024] During the brazing process of the pick, the conveying mechanism 1 can drive the multiple supports 2 to move step by step from left to right, and in the initial state, the rotating plate 11 is located above the side of the support 2 away from its horizontal part. The left side of the conveying mechanism 1 is the loading area, and the vacuum pump 20 on each support 2 is running. The staff can insert the pick base 36 containing the brazing sheet into the first limiting groove 6 on the support 2 passing by, and insert the carbide head 38 into the second limiting groove 16 on the support 2 passing by. Under the suction effect of the vacuum pump 20, the first limiting groove 6 and the second limiting groove 16 can be placed in a negative pressure state, so that the corresponding pick base 36 and the carbide head 38 can be firmly held and fixed. When the support 2 moves below the lifting plate 24, the second hydraulic cylinder 23 activates, its piston rod extending, which drives the lifting plate 24 and the induction coil 25 downward in sync until the induction coil 25 fits over the upper outer portion of the pick base 36 on the corresponding support 2. The induction coil 25 is then energized, heating the pick base 36 and melting the brazing sheet in the connection hole 37 on the upper portion of the pick base 36 into liquid. After melting, the induction coil 25 moves upward and resets, and the corresponding support 2 continues its stepwise movement. Once it reaches the right side, the motor 10 operates, driving the rotating plate 11 to rotate 180 degrees, aligning the carbide head 38 with the pick base 36. Then, the first hydraulic cylinder 12 activates, its piston rod extending, which drives the carbide head 38 downward as a whole, squeezing the lower portion of the carbide head 38 into the connection hole 37 on the pick base 36. The molten brazing liquid surrounds the lower portion of the carbide head 38, completing the brazing process. Next, the second solenoid valve 19 on the second exhaust pipe 17 is closed, and the second solenoid valve 19 on the second pressure relief pipe 18 is opened, so that the positive pressure is restored in the second limiting groove 16, thereby releasing the adsorption of the carbide head 38. The top seat 13 then moves upward and resets, and the motor 10 drives the rotating plate 11 to rotate 180 degrees again, returning the top seat 13 to its original position. After that, the vacuum pump 20 stops running, and the first solenoid valve 9 on the first exhaust pipe 7 is closed, and the first solenoid valve 9 on the first pressure relief pipe 7 is opened, so that the positive pressure is restored in the first limiting groove 6, thereby releasing the adsorption of the pick base 36. The staff can then remove the brazed pick from the first limiting groove 6. In this way, the entire brazing process is more continuous and automated. The overall operation only requires manual placement of the pick base 36 and the carbide head 38 into the corresponding first limit groove 6 and the second limit groove 16 before brazing, and manual removal of the pick after brazing. The loading, fixing, conveying, heating, melting and extrusion brazing operations in the process can be automated, making the operation simpler, more convenient, time-saving and labor-saving, and the operation is safer, more convenient and practical.Furthermore, the detachable connection between the first limiting post 5 and the base 3, and the detachable connection between the second limiting post 15 and the top seat 13, allows for convenient assembly and disassembly of the first limiting post 5 and the second limiting post 15. This allows for flexible adjustment of the first limiting slot 6 and the second limiting slot 16, thereby meeting the requirements for loading pick bases 36 and carbide tips 38 of varying sizes, providing a wide range of applications and greater flexibility and convenience. The conveying mechanism 1 can utilize conventional conveying equipment such as existing conveyor belts and conveyor chains.

[0025] In this embodiment, the first limiting groove 6 is matched with the lower portion of the pick base 36 to ensure smooth insertion and limiting of the pick base 36 .

[0026] The first fixing plate 29 is connected to the first fixing plate 29 by the first fixing plate 29, and the fixing plate 29 is connected to the first fixing plate 29 by the first fixing plate 29. Next, after taking the new first limiting column 5, the first mounting seat 26 on it can be aligned with the base 3 and placed in place, and then the two first electric push rods 28 are operated to retract the telescopic ends, driving the first vertical plate 29 to move toward the base 3 until the first insertion rod 30 is inserted into the corresponding first blind hole 27. The first mounting seat 26 is inserted and fixed, and the fixed installation of the new first limiting column 5 is completed. The installation is stable and does not affect subsequent use. In this way, the first limiting column 5 can be easily disassembled and assembled, and the size of the first limiting groove 6 can be flexibly adjusted, so that it can flexibly adapt to pick bases 36 of different specifications and sizes, with a wide range of overall applicability and more flexible and convenient use.

[0027] In this embodiment, the first mounting seat 26 is matched with the base 3 , and the first insertion rod 30 is matched with the corresponding first blind hole 27 to ensure smooth installation and fixation between the first limiting column 5 and the base 3 .

[0028] In this embodiment, the second limiting groove 16 is matched with the upper portion of the cemented carbide head 38 to ensure smooth insertion and limiting of the cemented carbide head 38 .

[0029] In this embodiment, the upper part of the second limiting column 15 is fixedly sleeved with a second mounting seat 31, and a plurality of second blind holes 32 are opened on the left and right sides of the second mounting seat 31. The lower parts of the left and right sides of the top seat 13 are embedded with second electric push rods 33. The telescopic end of the second electric push rod 33 faces the side away from the top seat 13 and is fixedly connected to the second vertical plate 34. The lower part of the second vertical plate 34 close to the side of the top seat 13 is fixed with a plurality of second insertion rods 35. The second mounting seat 31 abuts against the bottom of the top seat 13. On the top, the second insertion rod 35 corresponds to and is plugged into the second blind hole 32 on the same side. When replacing the second limiting column 15, the two second electric push rods 33 can be operated in the shutdown state to extend their telescopic ends, thereby driving the second vertical plate 34 away from the top base 13 until the second insertion rod 35 is completely withdrawn from the corresponding second blind hole 32. This releases the plug-in fixation of the second mounting seat 31, and then the second mounting seat 31 can be removed from the top base 13 to remove the original second limiting column 15. Then, after taking a new second limiting column 15, the second mounting seat 31 on it can be aligned with the top base 13 and placed in place. The two second electric push rods 33 can then be operated to retract their telescopic ends, driving the second vertical plate 34 to move toward the top base 13 until the second insertion rod 35 is plugged into the corresponding second blind hole 32, plugging and fixing the second mounting seat 31. This completes the fixed installation of the new second limiting column 15, and the installation is stable and does not affect subsequent use. In this way, the second limiting column 15 can be conveniently disassembled and assembled, and the size of the second limiting groove 16 can be flexibly adjusted, so that it can be flexibly adapted to carbide heads 38 of different specifications and sizes. The overall application range is wide and the use is more flexible and convenient.

[0030] In this embodiment, the second mounting seat 31 is matched with the top seat 13 , and the second insertion rod 35 is matched with the corresponding second blind hole 32 to ensure smooth installation and fixation between the second limiting column 15 and the top seat 13 .

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic feeding device for a pick production line, comprising a conveying mechanism, characterized in that: The cam is fixedly mounted on the support frame, and a plurality of L-shaped supports are evenly spaced along the transmission direction of the cam. The top of the horizontal portion of the support is fixedly mounted on the base, and the base is provided with a first limit post on the base top around the top of the L-shaped air channel. The first limit post is coaxially provided with a first limit slot connected to the L-shaped air channel. The bottom end of the L-shaped air channel passes through the side of the base and is fixedly connected to the first exhaust pipe. The first exhaust pipe is fixedly connected to the first pressure relief pipe at one end of the first exhaust pipe close to the base and is fixedly connected to the first solenoid valve at the end of the first pressure relief pipe and the first exhaust pipe away from the base. A motor is fixedly mounted on the top of the vertical portion of the support, and the output shaft of the motor faces upward and is fixedly connected to the rotating plate. The first hydraulic cylinder is vertically penetrated and fixedly mounted on the tail end of the rotating plate, and the piston rod of the first hydraulic cylinder faces downward and is fixedly connected to the top seat. The top seat is provided with an inverted L-shaped air channel, and the inverted L The top of the inverted L-shaped air channel passes through the side of the top seat and is fixedly connected to the second exhaust pipe, and the second exhaust pipe is fixedly connected to the second pressure relief pipe at one end of the second exhaust pipe close to the top seat. A second solenoid valve is provided on the second pressure relief pipe and the second exhaust pipe at one end away from the top seat. A vacuum pump is fixedly provided on the side of the vertical part of the support away from its horizontal part, and the first exhaust pipe is connected to the exhaust port of the vacuum pump through the delivery pipe, and the second exhaust pipe is connected to the exhaust port of the vacuum pump through the delivery hose. A second hydraulic cylinder is vertically fixed above the transmission mechanism, and the piston rod of the second hydraulic cylinder is downwardly facing and fixedly connected to the lifting plate. The bottom of the lifting plate is fixedly connected to the induction coil, and the induction coil can be sleeved on the outer side of the first limiting column.

2. The automatic feeding device for a pick production line according to claim 1, characterized in that: The first limiting groove is adapted to the lower portion of the pick base.

3. The automatic feeding device for a pick production line according to claim 1, characterized in that: The lower fixed sleeve of the first limiting column is provided with a first mounting seat, and a plurality of first blind holes are opened on the left and right sides of the first mounting seat. The upper parts of the left and right sides of the base are embedded with first electric push rods, and the telescopic ends of the first electric push rods face the side away from the base and are fixedly connected to the first vertical plate. A plurality of first plug rods are fixed on the upper part of the side of the first vertical plate close to the base, and the first mounting seat abuts against the top of the base. The first plug rods correspond one-to-one to the first blind holes on the same side and are plugged in and connected.

4. The automatic feeding device for a pick production line according to claim 3, characterized in that: The first mounting seat is matched with the base, and the first insertion rod is matched with the corresponding first blind hole.

5. The automatic feeding device for a pick production line according to claim 1, characterized in that: The second limiting groove is adapted to the upper portion of the cemented carbide head.

6. The automatic feeding device for a pick production line according to claim 1, characterized in that: The upper fixed sleeve of the second limiting column is provided with a second mounting seat, and a plurality of second blind holes are opened on the left and right sides of the second mounting seat, and the lower parts of the left and right sides of the top seat are embedded with second electric push rods, and the telescopic ends of the second electric push rods face the side away from the top seat and are fixedly connected to the second vertical plate, and a plurality of second plug rods are fixed on the lower part of the side of the second vertical plate close to the top seat, and the second mounting seat abuts against the bottom of the top seat, and the second plug rods correspond one-to-one to the second blind holes on the same side and are plugged in and connected.

7. The automatic feeding device for a pick production line according to claim 6, characterized in that: The second mounting seat is matched with the top seat, and the second insertion rod is matched with the corresponding second blind hole.

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