CN212286676U - Ring die repairing machine for feed production - Google Patents

Abstract

The utility model discloses a ring mould repairing machine for feed production, including the base, characterized by is provided with on the base and is used for placing the ring mould gyro wheel frame of waiting to restore the ring mould, still is provided with the drilling machine that is used for restoreing the interior round mill of ring mould working face and is used for restoreing the ring mould round hole on the base, interior round mill and drilling machine with wait to restore the ring mould on same axis, ring mould gyro wheel frame, interior round mill and drilling machine are controlled by a PLC. The ring mould repairing machine integrates three ring mould repairing processes into a whole and can be an unattended intelligent ring mould repairing machine.

Description

Ring die repairing machine for feed production

Technical Field

The utility model discloses a special technical equipment of feed production trade, concretely relates to core part ring mould of feed production line equipment granulator, a ring mould consumptive material consumer, ring mould repairing machine are ring mould repairing professional equipment.

Background

The ring die is a quick-wear part which has the largest influence on the related factors such as the yield and the quality of the particles in the particle feed line, the ring die is usually repaired 2-3 times in the service life period of the ring die, the service life of the ring die can be effectively prolonged by timely and effective ring die repairing work, and the productivity and the particle quality of the granulator are improved.

Because the ring mould has higher cost, the ring mould is generally recycled by adopting a means of repairing the ring mould, but the existing ring mould repairing equipment in the market has single function, can not completely repair the ring mould at one time, is basically in a manual to semi-automatic state, and the quality of the repaired ring mould is difficult to ensure. The normal ring mould repairing technology needs four working procedures, namely cleaning garbage and iron rust on the surface of the ring mould; the inner and outer circular surfaces of the grinding ring die enable the damaged part to be restored to be flat, and the compression roller matched with the grinding ring die can work normally conveniently; and the inner counter boring is re-processed and the feed blocked by the feed hole of the ring die is removed, so that the yield and the quality of feed extrusion are ensured. Four restoration processes need to use three kinds of processing equipment and even three kinds of above processing equipment to restore respectively in the market now, and some processes need to carry out manual operation repeatedly or calculate and check, have consuming time and consuming effort, equipment cost is high, the place occupies greatly, the inefficiency, repair quality can't guarantee scheduling problem.

These equipment mostly have shortcoming such as with high costs, bulky, human cost input height, so the utility model discloses a key will be put on integration ring mould repair equipment and reduction repair equipment input cost and human cost, improve the ring mould simultaneously and restore the quality.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the background art, the utility model aims to provide a feed production is with ring mould repairing machine.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the ring die repairing machine for feed production comprises a base, wherein a ring die roller frame used for placing a ring die to be repaired is arranged on the base, an inner circle grinding machine used for repairing a working face of the ring die and a drilling machine used for repairing a hole of a ring die row are further arranged on the base, the inner circle grinding machine and the drilling machine are located on the same axis with the ring die to be repaired, and the ring die roller frame, the inner circle grinding machine and the drilling machine are controlled by a PLC.

The ring die roller carrier comprises two horizontally placed supporting transmission shafts, both ends of each supporting transmission shaft are provided with a bearing with a seat, a chuck for fixing the ring die is arranged on each supporting transmission shaft, and the bearing with the seat is connected with the base through a bolt; the supporting transmission shaft is driven by a servo motor.

Each supporting transmission shaft is provided with a pair of positioning wheels, the positioning wheels are positioned on two sides of the ring die, a bakelite driven wheel is arranged in the middle of each positioning wheel on each supporting transmission shaft, one end of each supporting transmission shaft is provided with a timing belt pulley, the timing belt pulley is connected with a timing belt pulley of a speed reducer through a timing belt, and the speed reducer is driven by a servo motor.

The timing belt is provided with a tensioning wheel.

The inner circle grinding machine is arranged on the base through a vertical guide rail and a transverse guide rail, the transverse guide rail is connected with the base through a bolt, and the vertical guide rail is connected to a sliding block of the transverse guide rail.

The vertical guide rail comprises two high-precision linear rails, a sliding block is arranged on each rail, the sliding block is connected with a ball screw bearing through an inner circle grinding machine mounting base plate, the ball screw is connected with a driving motor, and the motor drives the ball screw to rotate and then pushes the base plate to displace, so that the inner circle grinding machine on the sliding block is driven to displace.

The transverse guide rail comprises two high-precision linear rails, a sliding block is arranged on each rail, a vertical guide rail mounting bottom plate of the internal grinding machine is connected with the sliding block, a ball screw is arranged between the two guide rails, and the ball screw is connected with a driving motor.

The internal grinding machine comprises a main shaft, a grinding wheel is arranged at the front end of the main shaft, and the rear end of the main shaft is connected with a power head.

The spindle is provided with a shaft barrel.

An auxiliary shaft barrel is arranged on the main shaft.

The power head is provided with a belt pulley, and the belt pulley is connected with a driving belt pulley of the motor through a belt.

The motor is arranged on the inner circle grinding machine mounting base plate.

The drilling machine is arranged on the base through a vertical guide rail and a transverse guide rail, the transverse guide rail is connected with the base through a bolt, and the vertical guide rail is connected to a sliding block of the transverse guide rail.

The drilling machine comprises a long support, wherein one end of the long support is provided with a mounting plate, a driving motor is arranged at the end of the long support, a driven wheel is arranged at the other end of the long support, the driven wheel is connected with a driving wheel of the motor through a belt, a drill chuck is arranged below the driven wheel, and a replaceable drill bit is arranged on the drill chuck.

The drill bit is a twist drill.

The drill bit is a tungsten steel drill.

The drilling machine is connected with the vertical guide rail through the mounting plate.

The method for repairing the ring mould for feed production comprises the following steps:

1) hoisting the ring mould to be repaired to a working area, placing the ring mould on the indexing module, and limiting the axial movement of the ring mould during rotation by using a positioning wheel;

2) the grinding disc of the grinding head extends into the inner side of the ring die, the grinding amount is judged according to the abrasion condition of the working surface in the ring die, and the working surface of the ring die is repaired to be a smooth and uniform ring surface; and after the repairing is finished, the grinding head is withdrawn from the ring die.

3) Replacing the drill bit with a tungsten steel drill bit, and extending the drill bit into the inner side of the ring die; the rotation of the ring die and the automatic positioning of the drill chamfering are realized, and the inner counter-boring chamfering of each die hole on the inner side of the ring die is accurately repaired; after the repair is finished, the drill bit is withdrawn from the ring die;

4) replacing the drill bit with a twist drill bit to enable the drill bit to extend into the inner side of the ring die; the automatic positioning of the rotation of the circular mold and the dredging of the drill bit is realized, and each blocked mold hole of the circular mold is accurately dredged; and after the repair is finished, the drill bit is withdrawn from the ring die.

Drawings

Fig. 1 is a schematic structural diagram of the appearance of a ring die repairing machine.

Fig. 2 is a schematic structural diagram of the appearance of the ring die repairing machine in the other direction.

FIG. 3 is a schematic view of the outline structure of the ring die roller frame.

FIG. 4 is a schematic view of the outline of the ring die roller frame in the other direction.

Fig. 5 is a schematic structural view of a guide rail base.

Fig. 6 is a schematic structural view of the internal grinding machine.

Fig. 7 is a schematic view of the structure of the internal grinding machine in the other direction.

Fig. 8 is a schematic view of a drill structure.

Fig. 9 is a schematic view of a drill in another direction.

Wherein: 1. frame 2, cutting head 3, grinding head 4, ring die roller carrier 5, filter water tank 6, filter cover 7, linear guide 8, ring die

21. Blanking 22 of transverse straight frame of ring die repairing integrated machine, track cover 23 of sliding table upright post of chamfering machine, synchronous large belt wheel 24, synchronous small belt wheel 25 and belt

31. Grinding power head auxiliary bushing 32, grinding disc 33, grinding main power head support 34, grinding auxiliary power head cylinder 35, grinding main power head cylinder 36, grinding main power head belt pulley 37, belt 38, grinding machine motor belt pulley-90 type 39, grinding power head support lower support plate

41. Indexing shaft driven shaft 42, indexing shaft positioning wheel 43, bearing with seat 44, indexing shaft inner grinding bakelite wheel 45 synchronous big belt wheel 46, synchronous small belt wheel 47 and tension wheel

7. Track seat 71, linear guide rail 72, slide block 73, ball screw 74, motor 75, coupler 76 and bearing seat

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments.

This embodiment will polish the working face, restore the counter sinking, dredge the three process of nib and integrate to an equipment.

Referring to fig. 1-2, the ring die repairing machine for feed production is composed of seven basic parts of a base 1, a numerical control die indexing rotation group (a ring die roller frame), a numerical control drilling machine (a drilling machine), a numerical control grinding machine (an inner circle grinding machine), an electrical control system, a cooling system and a lubricating system (see the attached drawing). The whole device is controlled by a PLC, and man-machine conversation is realized through a touch screen.

The base 1 is a basic support of the whole equipment and is a carrier of other components. The numerical control die indexing rotation group is used for completing high-speed rotation during cleaning and grinding of the surface of the ring die, and the ring die is automatically and accurately positioned during cleaning and chamfering and is arranged right above the middle part of the base. The structure is characterized in that the hole position is not correct when chamfering, and the hole position can be automatically adjusted finely according to the stress condition; the numerical control drilling machine (drilling machine 2) is used for cleaning the surface of the circular mold, the drill chuck for cleaning the hole and chamfering rotates according to a set rotating speed, and has the functions of accurately positioning up, down, left and right, and consists of a drilling power head and a transmission mechanism which can be moved in an up, down, left and right numerical control mode; the numerical control grinding machine (inner circle grinder 3) is used for finishing the grinding and repairing of the inner circle of the ring mould, the rotating speed of a grinding wheel is controlled when the inner circle is ground, the upper part, the lower part, the left part and the right part are accurately positioned, and the numerical control grinding machine is composed of a grinding power head and a transmission mechanism which is capable of shifting in an up-down-left-right numerical control mode. The electric control system is a transmission control unit of the equipment, the PLC is a command control center of the equipment, and the touch screen is a window for realizing man-machine conversation. Dry friction is easily generated in the working process of a bearing and a ball screw part of the equipment, lubricating grease is supplied in time through an automatic oil pumping machine of a lubricating system, and the service life of the equipment is prolonged; because, the ring mould is through high temperature heat treatment, and hardness is very high, and the tungsten steel drill bit is generated heat easily when the drilling machine is carrying out the chamfer technology, and the drill bit becomes fragile and bursts easily under the high temperature condition, for reducing the drill bit temperature, increase its life, the during operation needs cooling system to cool off it, and cooling system assembles and is used for the cooling of chamfer drill bit under the base middle part, comprises impurity filter screens such as cooling water pump, cooling water tank, settling tank, iron fillings and deposits storage tray of clear hole fodder and chamfer scrap iron. The ring die to be repaired is placed on the indexing rotating assembly, and the central axes of the ring die, the drilling machine and the grinding machine are in the same plane.

The ring die rotary indexing part component comprises a ring die roller support, a supporting transmission shaft, a driven wheel, a positioning wheel, a timing belt pulley, a timing belt, a speed reducer below the side and a high-precision servo motor, wherein the ring die roller support comprises a support base and two horizontally placed supporting transmission shafts, bearings with bases are assembled at two ends of the horizontally placed supporting transmission shafts, the bearing bases are fixed on the support base, and the support base is connected with the rack through bolts. Two positioning wheels and two driven wheels are respectively and sequentially arranged between two bearing seats of two supporting transmission shafts, the No. 1 positioning wheel on the two supporting transmission shafts is fixed on the supporting transmission shafts through fastening screws, two fixed positioning wheel surfaces facing to a ring mould are vertical to the axial lead of the supporting transmission shafts in the same plane, the ring mould is placed on four driven wheels of the two shafts, wear-resistant glue for preventing the ring mould and the driven wheels from sliding relatively is poured on the surfaces of the driven wheels in contact with the ring mould, the ring mould is placed on the driven wheels capable of sliding relatively to the two supporting transmission shafts, two groups of driven wheels are adjusted to the two ends of the cloth hole surface of the ring mould as much as possible to increase the stability of the ring mould, after the ring mould is placed, the driven wheels are locked through fastening screws to prevent, and simultaneously moving two positioning wheels on the two shafts to abut against the ring die to prevent the ring die from moving along the supporting transmission shaft, and then locking the positioning wheels by using the fastening screws of the positioning wheels. One end of one of the support shafts is provided with a timing belt pulley, the timing belt pulley is connected with a timing belt pulley of a speed reducer below the machine tool base through a timing belt, and the speed reducer is driven by a servo motor. The man-machine conversation of the whole equipment is realized through a touch screen on an equipment operation table, an operator sends an instruction to a PLC (programmable logic controller) in an electric appliance cabinet through the touch screen, the PLC sends corresponding pulse number instructions to different servo motors according to a pre-programmed program after receiving the instruction, an indexing system servo motor rotates a certain angle according to the number of received pulses after receiving the pulses and controls the rotating speed of the servo motor according to the speed rate of the received pulses, and the servo motor drives a timing belt pulley, a timing belt and a timing belt pulley on a supporting transmission shaft on a speed reducer through a speed reducer to transmit the rotated angle and the rotating speed to a ring mold to drive the ring mold to rotate the set angle according to the set rotating speed.

The numerical control drilling machine comprises a high-precision drilling power head, two sets of high-precision linear guide rails capable of randomly moving up and down, left and right, a transmission positioning system consisting of a high-precision ball screw, a support and a mounting plate servo motor and the like, and sends an instruction to a frequency converter for controlling a rotary motor of the drilling power head according to a program PLC (programmable logic controller), so that the rotating speed and the starting and stopping of a main shaft motor of the drilling power head are controlled, and the rotary motion of a hole cleaning steel wire brush, a hole cleaning drill bit and a chamfering drill bit is; the PLC sends pulse instructions to a servo motor which controls a drilling power head to move up, down, left and right, after the servo motor which controls the drilling power head to move up, down, left and right receives the pulse instructions, the drilling power head is driven to move up, down, left and right along a track according to the pulse receiving rate and the number of received pulses through a high-precision ball screw according to the pulse receiving rate and the number of received pulses, hole cleaning, chamfering and ring mold surface cleaning of a ring mold are respectively completed through different combinations of the control, and meanwhile, attention must be paid to the fact that a disc-shaped steel wire brush is clamped at a chuck part of the drilling power head when the surface is cleaned, and a hole cleaning drill bit corresponding to the aperture of the ring mold is clamped at the chuck part of the; and during chamfering, the clamping head part of the drilling power head clamps a tungsten steel chamfering drill bit corresponding to the aperture of the ring die. And the drilling machine automatically returns to the starting position after finishing the setting work.

The numerical control grinding machine comprises a high-precision grinding power head, two sets of high-precision linear guide rails capable of randomly shifting up, down, left and right, a transmission positioning system consisting of a high-precision ball screw, a bracket and an installation plate servo motor and the like, and sends an instruction to a frequency converter for controlling a rotary motor of the grinding power head according to a program PLC (programmable logic controller), so that the rotating speed and the starting and stopping of a spindle motor of the grinding power head are controlled, and the rotary motion of a grinding wheel is realized; the PLC sends pulse instructions to a servo motor which controls the grinding power head to move up, down, left and right, after the servo motor which moves up, down, left and right receives the pulse instructions, the servo motor which moves up, down, left and right drives the grinding power head to repeatedly move left, right and down along a track according to the pulse receiving rate and the number of received pulses through a high-precision ball screw according to the pulse receiving rate, the inner circle grinding work of a ring die is respectively completed through different combinations of the control, after the ring die is ground by one working stroke, the PLC sends pulse instructions to the grinding power head feeding servo motor according to the presetting, the feeding servo motor feeds a certain displacement through a ball screw transmission system, then the next working stroke is carried out until the accumulated ring die grinding amount reaches the set total feeding depth, the grinding power head returns to the grinding starting point position, the PLC sends instructions to turn off each motor, the whole device stops working and gives sound and light, and the operator presses the alarm reset key, so that the whole machining work is finished. If the operator is absent during alarming, the PLC automatically cuts off the power supply of the electric appliance cabinet according to the preset time when the alarming time is reached.

The working method and the sequence are as follows:

1. hoisting a ring mould to be repaired to a working area, installing the ring mould on a mould installation support, adjusting the positions of a driven wheel and a positioning wheel and locking, moving a detection sensor to a proper position, starting a ring mould continuous rotation button, turning 2-3 circles to press a parameter writing button, writing indexing parameters detected by the position detection sensor into a computer, and moving the detection sensor away.

2. Installing a cleaning steel wire brush at the chuck part of the numerical control drilling machine, adjusting the cleaning starting position, setting parameters, selecting a drilling mode on a control panel, pressing a starting button, starting a frequency converter of the drilling machine according to a preset rotating speed, driving a rotating motor of a drilling power head to drive the steel wire brush to rotate, simultaneously starting a indexing servo motor to drive a ring die to rotate according to the preset rotating speed, delaying for 2 seconds, starting a servo motor on the left and right sides of the drilling machine, and driving the drilling power head to move left and right to start cleaning residual feed on the inner surface and the outer surface of the ring die, residual feed on the left side and. After cleaning, the motor automatically returns to the starting position to alarm, and the related motor stops working.

3. Installing a grinding wheel on a numerical control grinding machine, adjusting a grinding starting position, setting parameters, selecting a grinding mode on a control panel, pressing a starting button to start a frequency converter of the grinding machine according to the preset value, starting a grinding power head rotating motor to drive the grinding wheel to rotate, starting an indexing servo motor to drive a ring die to rotate, delaying for 2 seconds, starting a servo motor to move left and right on the grinding machine to drive the grinding power head to move left and right to start grinding the inner circular surface of the ring die, automatically returning to a starting position to alarm after a set grinding range is reached, and stopping the work of a related motor.

4. Installing a hole cleaning drill bit at the chuck part of the numerical control drilling machine, setting parameters, selecting a drilling mode on a control panel, adjusting the proper height and hole position, pressing a start button, starting a frequency converter of the drilling machine according to the preset value, driving the hole cleaning drill bit to rotate by a rotary motor of a drilling power head, delaying for 2 seconds, starting a feeding servo motor of the drilling machine to move downwards according to the preset depth, starting to clean a first hole, returning to the starting position after the cleaning is finished, simultaneously starting a dividing servo motor to drive a ring die to rotate according to the preset hole number, rotating to the next hole position according to the set parameters, starting to clean a second hole, repeating the actions, finishing the first row, rotating by half hole distance by the dividing motor, starting a left row and a right row motor according to the preset rejection displacement, automatically dislocating the drilling power head to the designated position of the second row, continuously cleaning the holes and repeating the actions until the hole cleaning of the whole ring die, and automatically returning to the starting position to alarm, and stopping the work of the related motor.

5. Installing a chamfering drill bit on a numerical control drilling machine, setting parameters, selecting a drilling mode on a control panel, adjusting the appropriate height, pressing a start button, starting a frequency converter of the drilling machine according to a preset rotating speed, driving the chamfering drill bit to rotate by a drilling power head rotating motor, simultaneously starting a cooling water pump to supply cooling water, delaying for 2 seconds, moving a feeding servo motor of the drilling machine downwards according to a preset depth to start to reverse a first hole, finishing chamfering the first hole, returning to a starting point position, starting an indexing servo motor to drive a ring die to rotate to a next hole position according to a preset hole number, starting to reverse a second hole, repeating the actions, finishing the first row reversing, automatically dislocating to a second row appointed position, continuing chamfering and repeating the actions until the whole ring die chamfering is finished, automatically returning to the starting point position to alarm, and stopping the related motors. When chamfering, the drill bit is blunt, the system alarms, the drill bit is replaced, and the chamfering is restarted. In the middle working process, the parameter PLC automatically records, and unexpected data loss caused by power failure, stop and the like can be avoided. And after chamfering is finished, the motor automatically returns to the starting position to alarm, and the related motor stops working.

6. And (5) disassembling the ring die, and finishing the whole work of cleaning and sanitation.

Throw away the lathe equipment of traditional repair work, for the function of the special design bistrique of ring mould restoration with the drill bit, through modular guide rail, lead screw, the synthetic arm of servo motor group, saved the human input, optimized the operating efficiency, can realize repair work's automated control again.

Through the function of the integrated each restoration step, compare the cost of whole equipment in traditional repair equipment and reduce by a wide margin, also reduced the occupation of land space of equipment when reducing the overall cost that the annular mould repair equipment dropped into.

Function integration, raising the efficiency are the main theory of this innovation, and through the integration to ring mould repair equipment, reduced place area occupied and equipment input capital by a wide margin, simultaneously through PLC control, with whole restoration process automation, intellectuality, reduce the manpower demand, improve repair efficiency, reduce whole repair process's time consumption.

Referring to fig. 1-2, the ring mold repairing machine for feed production comprises a base 1, a ring mold roller carrier 4 for placing a ring mold to be repaired is arranged on the base, a servo motor provides power, a circular arc tooth synchronous belt ensures transmission ratio, a roller shaft is driven, a bakelite wheel is arranged on the shaft and is in close contact with the excircle of the ring mold, and the linear speed of the excircle of the ring mold can be ensured to be consistent with that of the bakelite wheel. The base is also provided with an inner circle grinding machine 3 for repairing the working surface of the ring die 8 and a drilling machine 2 for repairing the ring die row holes, and the inner circle grinding machine 3 and the drilling machine 2 are on the same axis with the ring die to be repaired. A water tank 5 is arranged below the base and used for receiving cooling water, and a filter screen 6 is arranged on the water tank 5 in order to avoid metal debris from blocking the water tank 5.

Referring to fig. 3-4, the ring die roller carrier is composed of two horizontally placed support transmission shafts 41 with bearings at both ends, positioning wheels 42 for fixing the ring die are arranged on the support transmission shafts, and the bearings 43 with the bearings are connected with the frame through bolts. The ring mould 8 is placed on the two support rods, the relative position of the ring mould is fixed by the positioning wheel 42, and the support transmission shaft support rods are driven by the motor to rotate, so that the ring mould is driven to rotate in the circumferential direction. The supporting transmission shaft connected with the motor is an active supporting transmission shaft, the other supporting transmission shaft is a driven shaft, and the high-precision motor is used for ensuring the precision of the circular mold in circumferential rotation.

Each supporting transmission shaft 41 is provided with a pair of positioning wheels 42, the positioning wheels 42 are positioned at two sides of the circular mold, a bakelite driven wheel 44 is arranged in the middle of each positioning wheel on each supporting transmission shaft, one end of one supporting transmission shaft is provided with a timing belt pulley 45, the timing belt pulley is connected with a timing belt pulley of a speed reducer 46 through a timing belt, and the speed reducer is driven by a servo motor 47. The timing belt is provided with a tensioner 47.

The internal grinding machine 3 is arranged on a guide rail base.

The drilling machine 2 is arranged on a guide rail base.

Referring to fig. 5, the transverse guide rail 7 is composed of two high-precision linear guide rails 71, and is connected with the frame through bolts, and the main purpose is to ensure the linear precision of the internal grinding machine and the drilling machine during operation. The guide rail is a heavy-load guide rail, so that the stability during linear motion is ensured. The guide rail 71 is provided with a slide block 72 on a rail, the inner circle grinder mounting base plate is connected with the slide block, a ball screw 73 is arranged between the two guide rails, and the ball screw is connected with a driving motor 74. A specific drive motor 74 is connected to the ball screw 73 through a coupling 75. The ball screw 73 is provided with bearing supports 76 at both ends.

Referring to fig. 6-7, the main component of the internal grinding machine 3 is a grinding disc (grinding wheel), the grinding disc is driven to rotate by a motor and a transmission shaft during operation, the grinding disc is driven to translate by the motor and a linear guide rail, so that the internal grinding machine extends into the inner circle of the ring die, and then the working surface of the inner circle of the ring die which is not flat is approached and ground. The internal grinding machine comprises a main shaft 31, a grinding wheel 32 is arranged at the front end of the main shaft, and a power head 33 is connected at the rear end of the main shaft. The spindle is provided with a shaft barrel 34. An auxiliary shaft barrel 35 is arranged on the main shaft, a power head 33 is provided with a belt pulley 36, and the belt pulley is connected with a driving belt pulley 38 of the motor through a belt 37. And the shaft barrel is arranged on the main shaft and used for supporting and protecting the driving shaft inside. The auxiliary shaft barrel is arranged on the main shaft and used for supporting and protecting an internal driven shaft, one end of the driven shaft is in fit transmission with the driving shaft close to the conical surface, and the grinding disc is installed at the other end of the driven shaft.

The motor is disposed on an inner grinding machine mounting base plate 39.

Referring to fig. 8-9, the drilling machine comprises a long support 21, one end of which is provided with a mounting plate 22 and a driving motor 23, the other end of which is provided with a driven wheel 24, the driven wheel is connected with a driving wheel of the motor through a belt 25, a drill chuck is arranged below the driven wheel, and a replaceable drill bit is arranged on the drill chuck. The main parts of the drilling machine are drill bits, which are divided into tungsten steel drill bits and twist drill bits. The tungsten steel drill bit is provided with a specific angle and used for repairing a chamfer (an inner countersink angle) of a die hole on the inner circle working surface of the ring die, and can be replaced by the tungsten steel drill bit with different angles at any time according to the specific requirements of the ring die; the twist drill bit has specific length and diameter, is used for dredging feed or other blockages blocked in the die hole, and can be replaced by twist drill bits with different lengths and diameters at any time according to the thickness of the ring die and the aperture of the die hole.

The working process of the embodiment is as follows:

1 hoisting a ring mould to be repaired to a working area, placing the ring mould on an indexing module, and limiting axial movement of the ring mould during rotation by using a positioning wheel

2, controlling the motors of a horizontal lead screw and a vertical lead screw at the side of the grinding head to rotate through the PLC, so that a grinding disc of the grinding head extends into the inner side of the ring die, judging the grinding amount according to the abrasion condition of a working surface in the ring die, and repairing the working surface of the ring die into a smooth and uniform ring surface; and after the repairing is finished, the grinding head is withdrawn from the ring die.

3. According to the actual requirement of the ring die, the drill bit is replaced by a tungsten steel drill bit with a specific angle, and the PLC is used for controlling the motors of the horizontal lead screw and the vertical lead screw at the side of the drill bit to rotate so as to enable the drill bit to extend into the inner side of the ring die; according to the actual hole arrangement condition of the ring die, the motor is controlled through the PLC, the rotation of the ring die and the automatic positioning of the drill bit chamfer are realized, and the inner counter-boring chamfer of each die hole on the inner side of the ring die is accurately repaired; and after the repair is finished, the drill bit is withdrawn from the ring die.

4. According to the actual requirement of the ring die, the drill bit is replaced by the twist drill bit with a specific diameter, and the motors of the horizontal lead screw and the vertical lead screw on the side of the drill bit are controlled to rotate by the PLC, so that the drill bit extends into the inner side of the ring die; according to the actual hole arrangement condition of the ring die, the motor is controlled through the PLC, the automatic positioning of ring die rotation and drill bit dredging is realized, and each blocked die hole of the ring die is accurately dredged; and after the repair is finished, the drill bit is withdrawn from the ring die.

The repair rates were compared as follows:

through a ring die repairing actual production test (CPM3020-7 ring die, 3.2 apertures, 11400 total holes), the uniformity of the repaired ring die is high, the accumulated repairing deviation is less than or equal to 0.1mm, the inner circle finish degree is less than or equal to Ra0.8, and the inner circle run-out is less than or equal to 0.4 mm. The repairing effect of the ring mould is higher than the factory processing level of the original factory.

Manpower requirements are reduced by 60%, average consumed time is reduced by 30%, and equipment cost is reduced by 40%.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (16)

1. The ring die repairing machine for feed production comprises a base and is characterized in that a ring die roller frame used for placing a ring die to be repaired is arranged on the base, an inner circle grinding machine used for repairing a working face of the ring die and a drilling machine used for repairing a hole of a ring die row are further arranged on the base, the inner circle grinding machine and the drilling machine are located on the same axis with the ring die to be repaired, and the ring die roller frame, the inner circle grinding machine and the drilling machine are controlled by a PLC.

2. The machine for repairing a ring mold for feed production according to claim 1, wherein the ring mold roller carrier comprises two horizontally placed support transmission shafts with bearings at two ends, the support transmission shafts are provided with chucks for fixing the ring mold, and the bearings with seats are connected with the base through bolts; the supporting transmission shaft is driven by a servo motor.

3. The machine for repairing a circular mold for feed production according to claim 2, wherein each supporting transmission shaft is provided with a pair of positioning wheels, the positioning wheels are arranged on two sides of the circular mold, a bakelite driven wheel is arranged in the middle of the positioning wheel on the supporting transmission shaft, one end of one of the supporting transmission shafts is provided with a timing belt pulley, the timing belt pulley is connected with a timing belt pulley of a speed reducer through a timing belt, and the speed reducer is driven by a servo motor.

4. The machine for repairing the ring die for feed production according to claim 1, wherein the internal grinding machine is disposed on the base through a vertical guide rail and a transverse guide rail, the transverse guide rail is connected with the base through a bolt, and the vertical guide rail is connected with a slide block of the transverse guide rail.

5. The machine for repairing the circular mold for feed production according to claim 4, wherein the vertical guide rail comprises two high-precision linear rails, a slide block is arranged on the rails, the slide block is connected with a ball screw bearing through an inner circle grinder mounting base plate, the ball screw is connected with a driving motor, and the motor drives the ball screw to rotate so as to push the base plate to displace, thereby driving the inner circle grinder on the slide block to displace.

6. The feed production ring die repairing machine according to claim 4, wherein the transverse guide rail comprises two high-precision linear rails, a slide block is arranged on each rail, a bottom plate for mounting the vertical guide rail of the internal grinding machine is connected with the slide block, a ball screw is arranged between the two guide rails, and the ball screw is connected with a driving motor.

7. The machine for repairing a ring mold for feed production according to claim 1, wherein the internal grinding machine comprises a main shaft, a grinding wheel is arranged at the front end of the main shaft, and a power head is connected to the rear end of the main shaft.

8. The machine for repairing a ring die for feed production according to claim 7, wherein a shaft cylinder is provided on the main shaft.

9. The machine for repairing a ring die for fodder production according to claim 8, wherein the main shaft is provided with an auxiliary shaft cylinder.

10. The machine for repairing a ring mold for feed production according to claim 7, wherein the power head is provided with a pulley, and the pulley is connected with a driving pulley of the motor through a belt.

11. The machine for repairing a ring die for fodder production of claim 10, wherein the motor is provided on a mounting base plate of the internal grinding machine.

12. The machine for repairing the ring mold for feed production according to claim 1, wherein the drilling machine is installed on the base through a vertical guide rail and a horizontal guide rail, the horizontal guide rail is connected with the base through a bolt, the vertical guide rail is connected with a slide block of the horizontal guide rail, and the vertical rail and the horizontal rail have different lengths.

13. The machine for repairing the circular mold for feed production as claimed in claim 12, wherein the drilling machine comprises a long bracket, one end of the long bracket is provided with a mounting plate, a driving motor is arranged at the end of the long bracket, the other end of the long bracket is provided with a driven wheel, the driven wheel is connected with a driving wheel of the motor through a belt, a drill chuck is arranged below the driven wheel, and a replaceable drill bit is arranged on the drill chuck.

14. The machine of claim 13, wherein the drill is a twist drill.

15. The machine for repairing a ring die for fodder production according to claim 13, wherein the drill bit is a tungsten steel drill.

16. The machine of claim 13, wherein the drilling machine is connected to the vertical rail through the mounting plate.

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