CN210699992U

CN210699992U - Automatic blade adjusting system of flaker

Info

Publication number: CN210699992U
Application number: CN201921528100.6U
Authority: CN
Inventors: 张健
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-09
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a flaker blade automatic regulating system, including blade subassembly, actuating mechanism and control system, the blade subassembly is used for scraping rotary drum surface material and cuts into the piece, actuating mechanism is used for driving blade subassembly feed or moves back the sword with interval between adjustment blade subassembly and the rotary drum surface, control system includes constant voltage power supply, current sensor and controller, the two poles of the earth of constant voltage power supply are connected in order to constitute detection circuit with rotary drum and blade subassembly electricity respectively, current sensor is used for detecting detection circuit's electric current, the controller controls actuating mechanism drive blade subassembly feed or moves back the sword according to the size of the electric current that current sensor detected. The automatic blade adjusting system of the flaker can automatically adjust the distance between the blade and the rotary drum in real time, avoids the blade abrasion caused by the contact of the cutting edge of the blade and the outer surface of the rotary drum, prolongs the service life of the blade, reduces the replacement frequency of the blade and reduces the production cost.

Description

Automatic blade adjusting system of flaker

Technical Field

The utility model relates to a pelleter technical field, concretely relates to pelleter blade automatic regulating system.

Background

The flaker is also named as a slicer or a flaker, can be used for cooling and flaking high-temperature materials and drying and flaking low-temperature slurry, and needs flaked alkali in solid alkali production. The flaking machine consists of a frame, a housing, a transmission system, a cooling system, a feeding system, a scraping flaking system and an electrical appliance control system. The molten material liquid in the arc-shaped material groove is contacted with the cooled rotary drum and condensed on the surface of the rotary drum to form a material film. The heat is taken away by the cooling liquid in the rotary drum along with the rotation of the rotary drum, and the material film is scraped from the other side of the rotary drum by a scraper through adjusting the distance between the blade and the outer surface of the rotary drum to be discharged as a sheet finished product.

The distance between the cutting edge of the blade forming machine and the outer surface of the rotary drum is generally controlled to be 0.1mm-0.15mm, if the distance between the cutting edge and the rotary drum is too close, the blade is easy to scratch the rotary drum and seriously abraded, and if the distance between the cutting edge and the rotary drum is too far, a material film on the outer surface of the rotary drum cannot be scraped completely, so the control of the distance between the cutting edge of the blade forming machine and the outer surface of the rotary drum is particularly important.

The diameter of a rotary drum of a flaker generally reaches more than 2m, and is influenced by manufacturing errors, the radiuses of different positions of the outer surface of the rotary drum in the circumferential direction have certain deviation, the distance between a cutting edge and the outer surface of the rotary drum is very small, even if the initial distance between the cutting edge and the outer surface of the rotary drum is adjusted accurately, in the rotating process of the rotary drum, the cutting edge and the rotary drum are in contact and wear due to the radius deviation of the rotary drum, which is a very important reason for causing blade wear.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a flaker blade automatically regulated system to the automatic distance between real-time adjustment blade and the rotary drum avoids the cutting edge of blade and the outer surface contact of rotary drum and causes blade wearing and tearing, has improved the life-span of blade, has reduced the change frequency of blade, has reduced manufacturing cost.

The utility model provides a flaker blade automatic regulating system, include: the blade assembly is arranged on a frame of the flaker and is used for scraping and cutting the material on the surface of the rotary drum into pieces; the driving mechanism is used for driving the blade assembly to advance or retreat so as to adjust the distance between the blade assembly and the surface of the rotary drum; the control system comprises a voltage-stabilized power supply, a current sensor and a controller, wherein two poles of the voltage-stabilized power supply are respectively electrically connected with the rotary drum and the blade assembly to form a detection circuit, the current sensor is used for detecting the current of the detection circuit, and the controller controls the driving mechanism to drive the blade assembly to feed or retract according to the current detected by the current sensor.

Further, the blade assembly comprises a blade holder, a blade and a blade pressing plate, the blade holder is installed on a rack of the flaker, the blade pressing plate presses and fixes the blade on the blade holder, and the blade pressing plate is fixed on the blade holder through a fixing bolt penetrating through the blade.

Furthermore, one side of the upper part of the tool rest, which is far away from the rotary drum, is provided with a vertical plane which is used for being attached to the side surface of the blade and a step surface which is attached to the bottom ends of the blade and the blade pressing plate.

Further, the lower cover of the cutting edge of blade is equipped with insulating protective sheath, passes through between blade and the knife rest, blade clamp plate and the fixing bolt insulating protective sheath is insulating, constant voltage power supply is connected with the blade electricity.

Further, the side of blade and insulating protective sheath is provided with outer through-hole, be provided with the insulating stopper in the outer through-hole, the center of insulating stopper is provided with the confession the interior through-hole that fixing bolt passed.

Further, still include thimble assembly, thimble assembly includes insulating bolt, thimble and compression spring, the screw that runs through the knife rest is seted up to one side that the knife rest is close to the rotary drum, insulating bolt threaded connection in the screw, the guide way along axial extension is seted up to insulating bolt's the inner, the bottom of guide way set up along axial extension and with run through the guide hole of insulating bolt outer end, the outer end sliding connection of thimble in the guide way, the inner of thimble passes the guide way and penetrates insulating protective sheath and blade butt, it is provided with the fender ring to lie in the guide way on the thimble, compression spring overlaps on the thimble and supports between the bottom of guide way and the fender ring.

Furthermore, the tool rest is arranged on a rack of the flaker through a rotating shaft, the driving mechanism is a servo cylinder, and the feeding or retracting of the blade is realized by driving the tool rest to rotate through the extension and contraction of an output shaft of the servo cylinder.

Furthermore, one side of the middle part of the knife rest, which is close to the rotary drum, is provided with an arc-shaped clamping groove with a downward opening, the knife rest is clamped and hung on the rotary shaft through the arc-shaped clamping groove, and the knife rest is provided with a limiting bolt for limiting the rotary shaft in the arc-shaped clamping groove.

Further, the controller is a PLC, and the current sensor is an ammeter.

The beneficial effects of the utility model are embodied in: the resistivity of the flaked material such as solid caustic soda (the water content is about 1 percent) is larger, according to a resistance calculation formula R ═ rho L/S, the resistance of the material access detection circuit is larger when the cutting edge of the blade is farther away from the rotary drum, the current of the detection circuit is smaller, the resistance of the material access detection circuit is smaller when the cutting edge of the blade is closer to the rotary drum, and the current of the detection circuit is larger, so that the feed or the withdrawal of the material can be judged through the current fed back by the detection circuit and the driving mechanism is controlled to move correspondingly, when the distance between the rotary drum and the blade assembly is reduced, the current of the detection circuit is increased, the current sensor feeds back the current of the detection circuit to the controller, then the controller outputs a signal to control the driving mechanism to drive the blade assembly to withdraw the blade assembly timely, when the distance between the rotary drum and the blade assembly is increased, the current of the detection circuit is reduced, and the current of the detection circuit, then the controller outputs signals to control the driving mechanism to drive the blade component to feed in time, so that the distance between the blade and the rotary drum can be automatically adjusted in real time in the slicing process, the blade and the rotary drum are always kept at the optimal slicing distance, the problems of contact and abrasion between the cutting edge and the rotary drum caused by radius deviation of the rotary drum at different positions are solved, the service life of the blade is prolonged, the replacement frequency of the blade is reduced, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a control system according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of a portion a of fig. 1.

In the drawings, 1 denotes a blade assembly; 11 denotes a tool holder; 111 denotes a vertical plane; 112 denotes a step surface; 113 an arc-shaped card slot; 114 denotes a limit bolt; 12 denotes a blade; 13 denotes a blade presser; 14 denotes a fixing bolt; 15 denotes an insulating sheath; 16 denotes an outer through hole; 17 denotes an insulating plug; 171 denotes an inner through hole; 18 denotes a rotating shaft; 2 denotes a drive mechanism; 21 denotes an output shaft; 3 denotes a control system; reference numeral 31 denotes a regulated power supply; 32 denotes a current sensor; 33 denotes a controller; 4 denotes a thimble assembly; 41 denotes an insulating bolt; 411 denotes a guide groove; 412 denotes a pilot hole; 42 denotes a thimble; 421 denotes a retainer ring; 43 denotes a compression spring; 5 denotes a frame; and 6 denotes a drum.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It should be noted that unless otherwise specified, technical terms or scientific terms used herein should have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

As shown in fig. 1-3, the embodiment of the present invention provides an automatic blade adjusting system for a flaker, which includes a blade assembly 1, a driving mechanism 2 and a control system 3.

The blade assembly 1 is arranged on a frame 5 of the flaker and is used for scraping and cutting the surface material of the rotary drum 6 into slices. As a specific example, referring to fig. 1 and 3, the blade assembly 1 includes a blade holder 11, a blade 12 and a blade pressing plate 13, the blade holder 11 is mounted on the frame 5 of the flaker, the blade pressing plate 13 presses and fixes the blade 12 on the blade holder 11, the blade pressing plate 13 is fixed on the blade holder 11 by a fixing bolt 14 penetrating the blade 12, when the blade 12 is worn, the blade 12 can be directly replaced, and the blade 12 is very convenient to mount and replace. In addition, one side of the upper part of the tool rest 11, which is far away from the rotary drum 6, is provided with a vertical plane 111 for being attached to the side surface of the blade 12 and a step surface 112 attached to the bottom ends of the blade 12 and the blade pressing plate 13, so that the bottom ends of the blade 12 and the blade pressing plate 13 can be tightly abutted through the step surface 112, and the blade 12 can be prevented from being displaced during cutting.

The driving mechanism 2 is used for driving the blade assembly 1 to advance or retract so as to adjust the distance between the blade assembly 1 and the surface of the rotary drum 6. As a specific example, referring to fig. 1, the tool post 11 is mounted on the frame 5 of the flaker through the rotating shaft 18, the driving mechanism 2 is a servo cylinder, which may be a servo cylinder, a servo electric cylinder, a servo hydraulic cylinder, or the like, and the feeding or retracting of the blade 12 is realized by driving the tool post 11 to rotate through the extension and contraction of the output shaft 21 of the servo cylinder, and in other embodiments, a servo motor may be used as the driving mechanism 2. In addition, an arc-shaped clamping groove 113 with a downward opening is formed in one side, close to the rotary drum 6, of the middle of the tool rest 11, the tool rest 11 is clamped and hung on the rotary shaft 18 through the arc-shaped clamping groove 113, a limiting bolt 114 used for limiting the rotary shaft 18 in the arc-shaped clamping groove 113 is arranged on the tool rest 11, when the tool rest 11 is installed, the arc-shaped clamping groove 113 is clamped and hung on the rotary shaft 18, the limiting bolt 114 is screwed to limit the rotary shaft 18 in the arc-shaped clamping groove 113, when the tool rest 11 is disassembled, the limiting bolt 114 is screwed out, the arc-shaped clamping groove 113 is withdrawn from the rotary shaft 18, and the tool rest 11 is.

Referring to fig. 2, the control system 3 includes a regulated power supply 31, a current sensor 32 and a controller 33, wherein two poles of the regulated power supply 31 are electrically connected to the rotary drum 6 and the blade assembly 1 respectively to form a detection circuit, the current sensor 32 is used for detecting the current of the detection circuit, the current sensor 32 is an ammeter, the controller 33 controls the driving mechanism 2 to drive the blade assembly 1 to advance or retract according to the magnitude of the current detected by the current sensor 32, and the controller 33 is a PLC controller 33.

The voltage of the regulated power supply 31 of this embodiment needs to be controlled below the safe voltage, and the frame 5 and the drum 6 can conduct electricity, so the regulated power supply 31 can be connected with the frame 5 of the sheet forming machine through a lead, one end connected with the frame 5 is the negative electrode of the regulated power supply 31, the positive electrode of the regulated power supply 31 is connected with the blade 12 of the sheet forming machine through a lead, referring to fig. 3, an insulating protective sleeve 15 is sleeved below the cutting edge of the blade 12 of this embodiment, the blade 12 is insulated from the tool rest 11, the blade pressing plate 13 and the fixing bolt 14 through the insulating protective sleeve 15, and the insulation between the blade 12 and the frame 5 and the drum 6 can. The side surfaces of the blade 12 and the insulating protective sleeve 15 are provided with outer through holes 16, an insulating plug 17 is arranged in the outer through hole 16, the center of the insulating plug 17 is provided with an inner through hole 171 for the fixing bolt 14 to pass through, when the blade 12 is installed, the blade 12 is firstly inserted into the insulating protective sleeve 15, the hole on the blade 12 is aligned with the outer through hole 16 on the insulating protective sleeve 15, then the insulating plug 17 is inserted into the outer through hole 16, finally the blade 12 and the blade pressing plate 13 are fixed through the fixing bolt 14 passing through the insulating plug 17, and the blade 12 is insulated from the fixing bolt 14 through the insulating plug 17.

The present embodiment is further provided with a thimble assembly 4 to facilitate connection of the blade 12 with an external wire. Referring to fig. 3, the thimble assembly 4 includes an insulating bolt 41, a thimble 42 and a compression spring 43, a screw hole penetrating through the tool holder 11 is formed at one side of the tool holder 11 close to the rotary drum 6, the insulating bolt 41 is in threaded connection with the screw hole, a guide slot 411 extending along an axial direction is formed at an inner end of the insulating bolt 41, a guide hole 412 extending along the axial direction and penetrating through an outer end of the insulating bolt 41 is formed at a bottom of the guide slot 411, an outer end of the thimble 42 is in sliding connection with the guide hole 412, an inner end of the thimble 42 penetrates through the guide slot 411 and penetrates through the insulating protective sleeve 15 to abut against the blade 12, a stop ring 421 is arranged in the guide slot 411 on the thimble 42, and the compression spring 43 is sleeved on the thimble 42. When the probe is installed, the thimble 42 and the compression spring 43 are installed in the insulating bolt 41, then the insulating bolt 41 is screwed into the screw hole, the thimble 42 penetrates through the insulating protective sleeve 15 and abuts against the blade 12, the thimble 42 can be always kept in contact with the blade 12 under the action of the compression spring 43, when the conducting wire is connected, the conducting wire is connected to the outer end of the thimble 42, and the blade 12 can be connected into the detection circuit in series.

The method for adjusting the blade by the automatic blade adjusting system of the flaker comprises the following steps:

step one, when confirming that the blade assembly 1 needs to be driven to feed and retract, detecting the current of a circuit, when debugging equipment, when a blade 12 is contacted with the surface of a rotary drum 6, the current of the detection circuit is I1 measured by a current sensor 32, and when the blade 12 is kept at the optimal slicing distance from the rotary drum 6, the current of the detection circuit is I2 measured by the current sensor 32;

step two, storing the current I1 and the current I2 in two working states in the controller 33;

in operation, the current sensor 32 obtains the current I3 of the detection circuit and feeds the current to the controller 33, the controller 33 compares the current I3 with the current I1 and the current I2, when I3 is equal to I1, the controller 33 outputs a signal to control the driving mechanism 2 to drive the blade assembly 1 to retract, when I3 is equal to I2, the driving mechanism 2 maintains the distance between the blade assembly 1 and the surface of the rotary drum 6 to be constant, and when I3 is less than I2, the controller 33 outputs a signal to control the driving mechanism 2 to drive the blade assembly 1 to retract.

In summary, since the resistivity of the flaked material (e.g. solid alkali with a water content of about 1%) is relatively large, as the distance between the cutting edge of the blade 12 and the drum 6 becomes larger, the resistance of the material access detection circuit becomes larger, the current of the detection circuit becomes smaller, and as the distance between the cutting edge of the blade 12 and the drum 6 becomes smaller, the resistance of the material access detection circuit becomes smaller, and the current of the detection circuit becomes larger, therefore, the present application can determine whether to advance or retract the cutter and control the driving mechanism 2 to make corresponding movement by the current fed back by the detection circuit, when the distance between the drum 6 and the blade assembly 1 decreases, the current of the detection circuit increases, the current sensor 32 feeds back the current of the detection circuit to the controller 33, and then the controller 33 outputs a signal to control the driving mechanism 2 to drive the blade assembly 1 to retract the cutter in time, and when the distance between the drum 6 and the blade assembly 1 increases, the current of the detection circuit is reduced, the current sensor 32 feeds the current of the detection circuit back to the controller 33, then the controller 33 outputs a signal to control the driving mechanism 2 to drive the blade assembly 1 to feed in time, thus the distance between the blade 12 and the rotary drum 6 can be automatically adjusted in real time in the slicing process, the blade 12 and the rotary drum 6 are always kept at the optimal slicing distance, the problems of contact and abrasion between the blade edge and the rotary drum 6 caused by radius deviation of the rotary drum 6 at different positions are solved, the service life of the blade 12 is prolonged, the replacement frequency of the blade 12 is reduced, and the production cost is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. An automatic blade adjustment system for a flaker, comprising:

the blade assembly is arranged on a frame of the flaker and is used for scraping and cutting the material on the surface of the rotary drum into pieces;

the driving mechanism is used for driving the blade assembly to advance or retreat so as to adjust the distance between the blade assembly and the surface of the rotary drum;

the control system comprises a voltage-stabilized power supply, a current sensor and a controller, wherein two poles of the voltage-stabilized power supply are respectively electrically connected with the rotary drum and the blade assembly to form a detection circuit, the current sensor is used for detecting the current of the detection circuit, and the controller controls the driving mechanism to drive the blade assembly to feed or retract according to the current detected by the current sensor.

2. The system of claim 1, wherein the blade assembly comprises a blade holder, a blade, and a blade press plate, the blade holder is mounted on the frame of the flaker, the blade press plate press-fits the blade onto the blade holder, and the blade press plate is secured to the blade holder by a retaining bolt that passes through the blade.

3. The automatic blade adjustment system of a flaker as claimed in claim 2 wherein the upper portion of the blade holder on the side away from the drum has a vertical plane for engaging the side of the blade and a stepped surface for engaging the bottom ends of the blade and blade hold down.

4. The automatic blade adjusting system of a flaker as claimed in claim 2 or 3, wherein an insulating protective sleeve is sleeved below the cutting edge of the blade, the blade is insulated from the blade holder, the blade pressing plate and the fixing bolt through the insulating protective sleeve, and the stabilized voltage power supply is electrically connected with the blade.

5. The automatic blade adjusting system of a flaker as claimed in claim 2 or 3, wherein the side surfaces of the blade and the insulating protective sleeve are provided with outer through holes, insulating plugs are arranged in the outer through holes, and the centers of the insulating plugs are provided with inner through holes for the fixing bolts to pass through.

6. The automatic blade adjusting system of a flaker as claimed in claim 2 or 3, which is characterized by further comprising a thimble assembly, wherein the thimble assembly comprises an insulating bolt, a thimble and a compression spring, a screw hole penetrating through the cutter holder is formed in one side of the cutter holder close to the rotary drum, the insulating bolt is in threaded connection with the screw hole, a guide groove extending along the axial direction is formed in the inner end of the insulating bolt, a guide hole extending along the axial direction and penetrating through the outer end of the insulating bolt is formed in the bottom of the guide groove, the outer end of the thimble is in sliding connection with the guide hole, the inner end of the thimble penetrates through the guide groove and penetrates through the insulating protective sleeve to abut against the blade, a retaining ring is arranged in the guide groove on the thimble, and the compression spring is sleeved on the thimble and supported between the bottom of.

7. The automatic blade adjusting system of a flaker as claimed in claim 2, wherein the blade holder is mounted on a frame of the flaker through a rotating shaft, the driving mechanism is a servo cylinder, and the feeding or retracting of the blade is realized by driving the blade holder to rotate through the extension and contraction of an output shaft of the servo cylinder.

8. The automatic blade adjusting system of a flaker as claimed in claim 7, wherein an arc-shaped slot with a downward opening is arranged on one side of the middle part of the knife rest close to the rotary drum, the knife rest is clamped and hung on the rotary shaft through the arc-shaped slot, and a limiting bolt for limiting the rotary shaft in the arc-shaped slot is arranged on the knife rest.

9. The system of claim 7, wherein the controller is a PLC and the current sensor is an ammeter.