CN115365915A - A disc grinder for producing and repairing the flat die end face of an extruder - Google Patents

Abstract

The invention discloses a disc grinder for repairing the end face of a flat die of a bulking machine, which comprises a main shaft control unit, a sucker rotating assembly, a sucker control unit and a distribution box, wherein the main shaft control unit, the sucker rotating assembly, the sucker control unit and the distribution box are arranged on a rack; the spindle control unit comprises a spindle hand wheel, a spindle transmission assembly is arranged on a transmission rod of the spindle hand wheel, the tail end of the spindle transmission assembly is connected with a spindle, and the tail end of the spindle is connected with a grinding wheel; the tail end of the sucker rotating assembly is connected with a magnetic sucker, and the distribution box is connected with the head end of the sucker rotating assembly; the sucking disc control unit is provided with sucking disc coupling assembling on the transfer line that includes the sucking disc hand wheel, sucking disc coupling assembling end-to-end connection has the layer board. According to the invention, the grinding wheel is manually operated by the two handles to move up and down and the flat die back and forth, so that the operation is simple and convenient, the requirement on the skill of an operator is reduced, and the self-repairing of the end surface of the flat die in a feed factory becomes possible.

Description

A disc grinder for producing and repairing the flat die end face of an extruder

technical field

The invention relates to the field of metal workpiece processing, in particular to a disc grinder for repairing the end face of a flat die of an extruder.

Background technique

A grinding machine refers to a machine tool that uses abrasive tools to grind the surface of a metal workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, and a few use other abrasive tools such as oil stones and abrasive belts and free abrasives for processing, such as honing machines, superfinishing machine tools, abrasive belt grinders, grinding machines and polishing machine etc.

The thirties in 18th century, in order to adapt to the processing after the parts such as clock and watch, bicycle, sewing machine and firearms harden, Britain, Germany and the U.S. develop respectively the grinding machine that uses natural abrasive emery wheel. These grinding machines were remanufactured by adding grinding heads to existing machine tools such as lathes and planers at that time. They had a simple structure, low rigidity, and were prone to vibration during grinding. artifacts. In 1876, the universal cylindrical grinding machine made by the U.S. Brown-Sharp Company exhibited at the Paris Exposition was the first machine with the basic characteristics of modern grinding machines. Its workpiece headstock and tailstock are mounted on a reciprocating table, and the box-shaped bed improves the rigidity of the machine tool, and it has an internal grinding attachment. In 1883, the company made a surface grinder with the grinding head mounted on the column and the workbench reciprocating. Around 1900, the development of artificial abrasives and the application of hydraulic transmission greatly promoted the development of grinding machines. With the development of modern industry, especially the automobile industry, various types of grinding machines have come out one after another. For example, at the beginning of the 20th century, planetary internal grinders, crankshaft grinders, camshaft grinders, and piston ring grinders with electromagnetic chucks were successively developed for processing cylinder blocks. Automatic measuring devices began to be applied to grinding machines in 1908. Around 1920, centerless grinders, double-end grinders, roll grinders, guide rail grinders, honing machines and superfinishing machine tools were successively manufactured and used; in the 1950s, high-precision cylindrical grinders that could be used for mirror grinding appeared; in the 1960s At the end, high-speed grinding machines with a grinding wheel line speed of 60-80 m/s and large depth of cut and slow-feed grinding surface grinders appeared; in the 1970s, technologies such as digital control and adaptive control using microprocessors were widely used in grinding machines. Applications.

An extruder belongs to a kind of equipment for processing puffed food, such as processing rice, corn, soybean, wheat, etc. in daily life. Its main working principle is that mechanical energy is converted into heat energy, and the food is squeezed and cooked by the heat generated when the machine is turned. The most obvious feature of the puffed food is that the volume becomes larger. The various functions of the extruder make it widely used in the fields of feed, food and industry. According to the way of use, it can be roughly divided into feed extruder, flour extruder, soybean extruder and other types of extruders.

The flat die is a key accessory for feed granule molding, and the repair of the flat die requires grinding of the plane. When the flat die of the extruder is used, the discharge end surface of the flat die of the extruder is continuously cut by the blade during the feed production process. Friction and impact lead to uneven end faces, that is, the discharge surface of the flat die will produce corrugations or grooves due to wear, which will reduce the quality of the produced particles, which will hinder the continuous production of the production line, and the corrugations and grooves will also be reduced. The service life of the cutter; at this time, it is necessary to repair the end face of the flat die. At present, the repair method for the end face of the flat die is generally to use an angle grinder to manually grind the damaged end face of the flat die. This method has the advantages of low cost and easy repair; the second method is that the enterprise sends the flat die of the extruder It can be repaired by a surface grinder in a dealer or a machining factory. The advantage of this method is that the repair accuracy is high and the repair of the worn part is more comprehensive.

Yet the existing method for repairing the extruder flat die still has the following technical problems:

1. For the end face of the puffing machine that is manually ground by an angle grinder, this method of grinding debris is not ideal for repairing the end face of the puffing machine. Due to the error caused by manual shaking, it may not be able to achieve the flat die of the puffing machine The flatness of the flat die and the surface roughness of the flat die required for the production of pellet feed also increase the repair burden of the operator. Forcible use may cause the produced feed pellets to fail to meet the standards and cause greater economic losses to the production enterprise. .

2. For the repair of abrasive debris by sending the flat die of the extruder to the supplier or the mechanical processing factory through a surface grinder, this method has high repair accuracy, but it is a waste of manpower for the production enterprise, and the repair cycle of the flat die is longer , At the same time, for production enterprises, the degree of repair of the flat die of the extruder is not easy to control, and the cost of repairing the flat die is high, which increases the cost burden of the production enterprise.

Contents of the invention

The purpose of the present invention is to provide a disc grinder for repairing the flat die end face of an extruder, so as to solve the technical problems of low repair precision and high repair cost of the existing repair method.

To achieve the above object, the present invention provides the following technical solutions:

The present invention provides a disc grinder for repairing the flat die end face of an extruder, comprising a frame, a spindle control unit, a suction cup rotating assembly, and a suction cup control unit arranged on the frame; the spindle control unit includes a spindle handwheel and a spindle The main shaft transmission assembly provided at the end of the handwheel transmission rod, the end of the main shaft transmission assembly is connected with a main shaft, and the end of the main shaft is connected with a grinding wheel; the end of the suction cup rotation assembly is connected with a magnetic chuck, and the power distribution box and the suction cup rotation assembly first end connection; the suction cup control unit includes a suction cup connection assembly on the transmission rod of the suction cup handwheel, and a pallet is connected to the end of the suction cup connection assembly.

Optionally or preferably, a spindle support frame is provided on the upper end surface of the frame, a spindle motor is coupled to the spindle support frame, and the spindle motor is coupled to the spindle.

Optionally or preferably, the main shaft transmission assembly includes a trapezoidal screw of the worm lifter, on which a slide block, a linear guide rail and a pallet are provided for the up and down movement of the coupling body between the main shaft and the grinding wheel.

Optionally or preferably, the suction cup rotating assembly includes a worm gear reducer, a motor and a turntable, and the worm gear reducer and the motor are connected to the turntable through a tapered roller bearing connection.

Optionally or preferably, the turntable is connected to the magnetic chuck by means of bolts.

Optionally or preferably, the suction cup connection assembly includes a slider and a linear guide rail for forward and backward movement of the pallet; the turntable is arranged on the pallet, and the pallet and the turntable are connected by bolts.

Optionally or preferably, the frame is respectively provided with a primary water tank and a secondary water tank, and a cooling water pump is provided on the secondary water tank; a power distribution box is also provided on the frame.

Optionally or preferably, the distribution box is provided with control buttons.

Optionally or preferably, a protective cover is arranged on the grinding wheel, and the grinding wheel is connected to the main shaft through a bolt connection.

Optionally or preferably, armor protection is installed on the upper end surface of the frame near the hand wheel; the upper end surface of the main shaft support frame is coupled with armor protection; the upper end surface of the frame is provided with a heightened sheet metal stop Plates are used to prevent debris from flying.

Based on the above technical solutions, the embodiments of the present invention can produce at least the following technical effects:

(1) A disc grinder for repairing the flat die end face of an extruder provided by the present invention reduces the number of motion axes for surface grinding and simplifies the transmission structure through the set spindle control unit, suction cup rotation assembly and suction cup control unit. It can accurately control the grinding wheel on the grinding machine to wear debris on the damaged flat die of the extruder, and realize the repair of the damaged flat die of the extruder. At the same time, compared with the method of manual repair using an angle grinder, it reduces the difficulty of operation, and at the same time The invention improves the maintenance accuracy of the flat die of the damaged extruder.

(2) The present invention provides a disc grinder for repairing the end face of the flat die of an extruder. Through the two operating handles provided, the operator of the manufacturer can manually operate the up and down movement of the grinding wheel and the front and rear of the flat die through the two handles. Move to achieve accurate repair of the damaged flat die of the extruder, and at the same time reduce the skill requirements for the operator, making it possible for the flat die of the extruder to be repaired within the production enterprise, greatly reducing the cost burden of the production enterprise.

Description of drawings

Fig. 1 is the front schematic diagram of the embodiment of the present invention;

Fig. 2 is a side view of an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. Main shaft support frame; 2. Armor protection; 3. Slider; 4. Support plate; 5. Main shaft motor; 6. Linear guide rail; 7. Primary water tank; Cooling water pump; 10. Secondary water tank; 11. Magnetic sucker; 12. Turntable; 13. Support plate; 14. Slider; 15. Linear guide rail; 16. Turbine worm reducer; , protective cover; 20, grinding wheel; 21, heightened sheet metal baffle; 22, armor protection; 23, suction cup handwheel; 24, spindle handwheel; 25, rack; 27, distribution box; 28, control button.

Detailed ways

As shown in Figure 1-Figure 3:

A disc grinder for repairing the flat die end face of an extruder, comprising a frame 25 and a spindle control unit arranged on the frame 25, a sucker rotating assembly, a sucker control unit, and a power distribution box 27; the spindle control unit includes a spindle hand Wheel 24 and the main shaft transmission assembly arranged on the main shaft hand wheel 24 transmission rod, the end of the main shaft transmission assembly is connected with the main shaft 18, and the end of the main shaft 18 is connected with the grinding wheel 20; the end of the suction cup rotation assembly is connected with the magnetic chuck 11, so The power distribution box 27 is connected to the head end of the suction cup rotation assembly; the suction cup control unit includes a suction cup connection assembly on the transmission rod of the suction cup hand wheel 23 , and the end of the suction cup connection assembly is connected to a pallet 13 .

The utility model provides a disc grinder for repairing the end face of the flat die of an extruder, through which the hand wheel 24 of the main shaft is rotated and linked with the precision turbine worm lifter 8 to drive to the supporting plate 4 arranged on the main shaft, and the supporting plate 4 Move through the linear slider 3 and the linear guide rail 6 arranged on the trapezoidal screw of the turbine worm lifter 8, the supporting plate 4 moves up and down together with the main shaft 18 and the grinding wheel 20; rotate on the screw through the main shaft hand wheel 23 provided The connected pallet 13 drives the pallet 13 and the magnetic chuck 11 to move back and forth. The pallet 13 moves using a linear slider 14 and a linear guide rail 15 to drive; the motor 16 and the motor 17 output the transmission shaft and the turntable 12 to rotate, Make the magnetic chuck 11 and the grinding debris workpiece follow the rotation; it is also equipped with a hidden cooling water tank 10 and a cooling water pump 9 to cool the grinding debris processing parts and prevent the grinding debris workpiece from heating and turning blue; the primary water tank 7 can settle More than 70% of the grinding wheel powder and grinding dust, the secondary water tank 10 is divided into three areas for settlement treatment, which can settle the tiny dust particles, so that the coolant can be recycled; for the safety protection design of the grinding machine, the grinding wheel 20 is equipped with a protective cover 19. The sheet metal 21 in the direction of the grinding wheel rotating chips adopts a heightened design to prevent the waste chips from scattering and improve safety performance. Safety protection performance.

As an optional embodiment, a spindle support frame 1 is provided on the upper end surface of the frame 25 , and a spindle motor 5 is coupled to the spindle support frame 1 , and the spindle motor 5 is coupled to the spindle 18 .

As an optional embodiment, the main shaft transmission assembly includes a trapezoidal screw of the worm lifter 8 provided with a slider 3 , a linear guide rail 6 and a pallet 4 for the coupling connection between the main shaft 18 and the grinding wheel 20 up and down movement.

As an optional embodiment, the suction cup rotating assembly includes a worm gear reducer 16, a motor 17 and a turntable 2, and the worm gear reducer 16 and the motor 17 are connected to the turntable 12 through a tapered roller bearing connection.

As an optional embodiment, the turntable 12 is connected to the magnetic chuck 11 through bolts; of course, other connection methods such as welding may also be adopted, as long as the effective connection between the turntable 12 and the magnetic chuck 11 can be ensured.

As an optional embodiment, the suction cup connection assembly includes a slider 14 and a linear guide rail 15 for moving back and forth of the pallet 13; Of course, other connection methods such as welding can also be adopted, as long as the effective connection between the supporting plate 13 and the turntable 12 can be ensured.

As an optional embodiment, the frame 25 is provided with a primary water tank 7 and a secondary water tank 10 respectively, and the secondary water tank 10 is provided with a cooling water pump 9; the frame 25 is provided with a power distribution box 27 .

As an optional implementation, the distribution box 27 is provided with a control button 28 .

As an optional embodiment, the grinding wheel 20 is provided with a protective cover 19, and the grinding wheel 20 is connected to the protective cover 19 through a bolt connection; of course, other connection methods such as welding can also be adopted, as long as the grinding wheel 20 and the main shaft can be guaranteed 18 valid connections are sufficient.

As an optional embodiment, the upper end surface of the frame 25 is coupled with an armor protection 22 near the handwheel side; the upper end surface of the main shaft support frame 1 is coupled with an armor protection 2; The heightened sheet metal baffle 21 is used to prevent waste chips from splashing.

The method of using the disk grinder for repairing the flat die end face of the extruder provided by the utility model is as follows:

When the production enterprise needs to repair the flat die of the damaged extruder, the operator places the target metal workpiece or the damaged flat die workpiece on the magnetic chuck 11, and starts the spindle motor through the control button 28 arranged on the distribution box 27 5 Drive the grinding wheel 20 to start rotating. The operator rotates the precision turbine worm lifter 8 through the spindle handwheel 24 and drives it to the supporting plate 4 on the spindle, and moves up and down together with the spindle 18 and the grinding wheel; the operator passes the transmission wire of the handwheel 23 The rod rotates and connects the supporting plate 13 to drive the forward and backward movements of the supporting plate 13 and the magnetic chuck 11; through the output of the worm gear reducer 16 and the motor 17, the transmission shaft and the turntable 12 are driven to rotate, so that the magnetic chuck 11 and the wear debris workpiece follow the rotation, so that The operator can realize the grinding of the end face of the flat die by rotating the flat die and moving the flat die, which reduces the difficulty of repairing the flat die and makes the repair quality higher than that of the manual angle grinder.

Claims (10)

1. A disc grinder for repairing the flat die end face of an extruder, characterized in that: it includes a frame (25) and a spindle control unit, a suction cup rotating assembly, and a suction cup control unit arranged on the frame (25); the spindle The control unit includes a main shaft handwheel (24) and a main shaft transmission assembly connected to the end of the transmission rod of the main shaft hand wheel (24). The main shaft transmission assembly is connected to a main shaft (18), and the end of the main shaft (18) is connected to a grinding wheel (20) The end of the suction cup rotation assembly is connected with a magnetic chuck (11); the suction cup control unit includes a suction cup handwheel (23) and a suction cup connection assembly set on the transmission rod of the suction cup handwheel (23), and the end of the suction cup connection assembly is connected to There is supporting plate (13). 2. A disc grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the upper end face of the frame (25) is provided with a main shaft support frame (1), and the main shaft supports A spindle motor (5) is coupled to the frame (1), and the spindle motor (5) is coupled to the spindle (18). 3. A disk grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the main shaft drive assembly includes a trapezoidal screw of a worm lifter (8) with a slider ( 3), the linear guide rail (6) and the supporting plate (4) are used for the up and down movement of the coupling body between the main shaft (18) and the grinding wheel (20). 4. A disc grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the suction cup rotating assembly includes a worm gear reducer (16), a motor (17) and a turntable (12) , the worm gear reducer (16) and the motor (17) are connected to the turntable (12) through a tapered roller bearing connection. 5 . The disc grinder for repairing the flat die end face of an extruder according to claim 4 , characterized in that: the turntable ( 12 ) is connected to the magnetic chuck ( 11 ) by means of bolts. 6 . 6. A disc grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the suction cup connection assembly includes a slider (14), a linear guide rail (15) for the supporting plate (13) forward and backward movement; the turntable (12) is set on the supporting plate (13), and the supporting plate (13) and the turntable (12) are connected by bolts. 7. A disc grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the frame (25) is respectively provided with a primary water tank (7) and a secondary water tank (10), The secondary water tank (10) is provided with a cooling water pump (9); the frame (25) is provided with a distribution box (27). 8. The disc grinder for repairing the flat die end face of an extruder according to claim 7, characterized in that: the distribution box (27) is provided with a control button (28). 9. A disc grinder for repairing the flat die end face of an extruder according to claim 1, characterized in that: the grinding wheel (20) is provided with a protective cover (19), and the grinding wheel (20) is connected by bolts Way is connected with main shaft (18). 10. A disc grinder for repairing the flat die end face of an extruder according to claim 2, characterized in that: the upper end face of the frame (25) is coupled with armor protection (22) on the side close to the hand wheel; The upper part of the main shaft support frame (1) is coupled with armor protection (2); the upper end surface of the frame (25) is provided with a heightened sheet metal baffle (21) to prevent waste debris from splashing.

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