CN111606082A

CN111606082A - Floating feeder of roll squeezer

Info

Publication number: CN111606082A
Application number: CN202010465416.6A
Authority: CN
Inventors: 马超; 韩呈; 宋晓刚; 徐海阳
Original assignee: Sinosteel New Materials Co Ltd
Current assignee: Sinosteel New Materials Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-01

Abstract

The invention discloses a floating type feeding device of a roller press, which comprises a main frame and a feeding channel, wherein two first suspension pin shafts are arranged on the main frame, and two ends of each suspension pin shaft are respectively and movably connected with a swing arm; through holes are respectively formed in the front side wall and the rear side wall of the lower portion of the feeding channel, a swinging frame is arranged on the outer side of each through hole, a screening device is further arranged in the feeding channel, and the front side and the rear side of the screening device are respectively connected with the two swinging frames; two ends of one swing frame are respectively connected with two ends of the other swing frame through second suspension pin shafts, and two ends of each second suspension pin shaft are respectively movably connected with the lower end of the swing arm at the end position; a mandril connecting shaft is movably connected between the middle parts of the two swing arms on the same side of the main frame, and a stabilizing rod is connected between the middle parts of the two swing arms on the other side of the main frame; the middle part of the mandril connecting shaft is movably connected with a mandril device. The roller press has the advantages of novel and reasonable structural design, convenience in manufacturing, good effect and strong practicability, and effectively solves the problem of feeding materials into the roller press.

Description

Floating feeder of roll squeezer

Technical Field

The invention belongs to the technical field of material crushing equipment, and particularly relates to a floating type feeding device of a roller press.

Background

The theory of operation of roll squeezer relies on two squeeze rolls, extrude the material that passes through, cause the material to be crushed, this kind of theory of operation, it keeps relative static to need material and roll surface, just can improve the effect of crushing, and if material and roll surface have produced relative movement, the material can move under the effect of pressure, the looks mutual friction, can reduce the pressure of acting on the material granule, can produce a large amount of heats because of the friction simultaneously, steady operation to mechanical equipment causes negative effects, if the phenomenon that the material skidded has been produced, then can directly cause the reduction of roll squeezer crushing effect, the output of qualified product after the direct influence roll-in.

In addition, the particle size of the feeding material of the roller press is not uniform, and the roller surface structure of the roller press determines that if the material directly contacting the roller surface has fine particle size, sliding and rolling can be generated.

At present, feeding systems of roller presses in the market are simple, the feeding systems are generally only conveyed to the middle of two extrusion rollers of the roller press through a feed bin directly through a discharging pipeline, bars or flat plates inserted into the feeding pipeline are arranged on the spot according to the yield requirement of the roller press, the adjustment is carried out through adjusting the area of the inner part of the discharging pipeline, and manufacturers and scientific research institutions of the roller presses do not deeply study the feeding systems at present.

Disclosure of Invention

Aiming at the defects of the existing feeding system of the roller press in the background technology, the invention provides a floating type feeding device of the roller press, which effectively solves the problem of feeding materials into the roller press by arranging a screening device in a feeding channel and arranging a four-link structure consisting of a main frame, a swing arm, a swing frame, a first suspension pin shaft, a second suspension pin shaft and the like outside the feeding channel.

The technical scheme for solving the technical problem of the invention is as follows:

the invention relates to a floating type feeding device of a roller press, which comprises a main frame and a feeding channel vertically arranged on the main frame, and is characterized in that first suspension pin shafts are respectively arranged on the main frame and positioned on two sides of the feeding channel in a front-back penetrating manner, and two ends of each suspension pin shaft are respectively movably connected with a swing arm; through holes are respectively formed in the front side wall and the rear side wall of the lower portion of the feeding channel, a swinging frame is arranged on the outer side of each through hole, a screening device is further arranged in the feeding channel, and the front side and the rear side of the screening device are respectively connected and fixed with the two swinging frames; two ends of one swing frame are respectively connected with two ends of the other swing frame through second suspension pin shafts, and two ends of each second suspension pin shaft are respectively movably connected with the lower end of the swing arm at the end position; the middle parts of the two swing arms on the same side of the main frame are movably connected with a mandril connecting shaft, and the middle parts of the two swing arms on the other side of the main frame are connected with a stabilizer bar; and the middle part of the ejector rod connecting shaft is movably connected with an ejector rod device.

As a further improvement of the technical scheme of the invention, the screening device comprises two bar sieves which are obliquely arranged downwards and are connected at the tops, and the lower ends of the two bar sieves are respectively provided with a material distributing partition plate.

As a further improvement of the technical scheme of the invention, the gap of the bar screen is 5-20 mm.

As a further improvement of the technical scheme of the invention, the ejector rod device is a hydraulic ejector rod, the front end of the ejector rod device is movably connected with the middle part of the ejector rod connecting shaft, and the rear end of the ejector rod device is movably connected and fixed with the main frame through a rotatable ejector rod device base.

As a further improvement of the technical scheme of the invention, the cross section of the feeding channel is square or rectangular.

As a further improvement of the technical scheme, the device further comprises a PLC (programmable logic controller) and a hydraulic station, wherein an angle sensor is arranged at the end part of one first suspension pin shaft, the ejector rod device is connected with the hydraulic station, and the hydraulic station and the angle sensor are respectively connected into the PLC through lines. .

When the material feeding device is applied, materials fall into the feeding channel with the rectangular or square cross section from the top of the feeding channel through self weight, the materials entering the feeding channel fall onto the top of the bar screen, the materials with the granularity smaller than the gap of the bar screen fall into the lower part of the bar screen, the materials with the granularity larger than the gap of the bar screen are blocked by the bar screen and fall into the outer side area of the material distributing partition plates, so that the materials are screened under an ideal state, the materials with smaller granularity and most of fine powder fall into the middle area of the two material distributing partition plates, the materials with larger granularity are concentrated into the area outside the material distributing partition plates and fall along the inner wall of the feeding channel, and the relative position of the coarse particle materials is at the edge of the feeding area, so that the coarse particle materials firstly contact with the roller surface of a roller press to be crushed, the friction force of the roller surface on the materials is increased. When the work efficiency of two squeeze rolls was inconsistent, accessible ejector pin device adjustment screening plant's position, and then the feed rate of adjustment both sides to solve the asynchronous problem of the extrusion efficiency of two squeeze rolls. This knot material device can also control through the PLC controller, through this PLC controller control hydraulic pressure station to the ejector pin device pump go into hydraulic oil and drive the flexible of ejector pin device, and then through four connecting rod structure control screening plant's position.

Compared with the prior art, the floating type feeding device of the roller press has the following advantages:

1. the material granularity composition in the feed bin under can initiatively adjusting, adjusts the material of coarse grain to the outside of feed bin through the guide of bar sieve, after getting into the broken region of roll-in, directly contacts with the roll surface, increases frictional force, reduces the gliding probability of material at the roll surface.

2. Through the active adjustment material granularity component structure for thinner powder concentrates on the centre that extrudees the material region, is favorable to the broken in-process of roll-in, in time fills the material clearance, reduces because the material is broken and the quick extrusion of the interior air of gap causes the vibration.

3. The push rod device can be driven by a hydraulic cylinder as a power structure, and is provided with an angle sensor, a PLC can actively adjust according to a program, and particularly when the working efficiency of two extrusion rollers is inconsistent, the feeding speed at two sides can be adjusted by actively adjusting the position of the screening device, so that the problem of asynchronous extrusion efficiency of the two extrusion rollers is solved.

4. The floating type feeding device is composed of a connecting rod mechanism, is stable in stress state, and can not be blocked due to impact and pollution of materials because the bearing and the rotating part are all arranged outside the storage bin. And meanwhile, the connecting rod mechanism can absorb main downward impact force, so that the external impact on the hydraulic cylinder which is adjusted as a drive can be greatly reduced, and the longer service life can be ensured not to be influenced by severe working conditions.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2;

FIG. 4 is a schematic top view of the present invention;

FIG. 5 is a schematic structural view of example 2 of the present invention;

in the figure: 1-a main frame; 2-a rotatable mandril device base; 3-a top rod device; 4-a first suspension pin; 5-a connecting shaft of the ejector rod device; 6-a second suspension pin; 7-a swing frame; 8-a material separating clapboard; 9-bar screen; 10-a feed channel; 11-a through hole; 12-a stabilizer bar; 13-a swing arm; 14-a screening device; 15-an angle sensor; 16-a PLC controller; 17-hydraulic pressure station.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 4, the floating feeding device of the roller press of the present invention comprises a main frame 1 and a feeding channel 10 vertically arranged on the main frame 1, wherein the section of the feeding channel 10 is square or rectangular, first suspension pins 4 respectively penetrate through the main frame 1 at the front and back of two sides of the feeding channel 10, and two ends of each suspension pin 4 are respectively and rotatably connected with a swing arm 13; through holes 11 are respectively formed in the front side wall and the rear side wall of the lower portion of the feeding channel 10, a swinging frame 7 is arranged on the outer side of each through hole 11, a screening device 14 is further arranged inside the feeding channel 10, and the front side and the rear side of each screening device 14 are respectively connected and fixed with the two swinging frames 7; two ends of one swing frame 7 are respectively connected with two ends of the other swing frame 7 through second suspension pin shafts 6, and two ends of each second suspension pin shaft 6 are respectively rotatably connected with the lower end of a swing arm 13 at the end position; a mandril connecting shaft 5 is movably connected between the middle parts of the two swing arms 13 on the same side of the main frame 1, and a stabilizing rod 12 is connected between the middle parts of the two swing arms 13 on the other side; the middle part of the mandril device connecting shaft 5 is rotatably connected with a mandril device 3, and the telescopic rod of the mandril device 3 can drive the mandril device connecting shaft 5 to swing forwards or backwards. In this embodiment, the rotational connection relationship between the first and

second suspension pins

4, 6, the swing arm 13, the ejector device 3, the ejector device connecting shaft 5, and other components is fixed by movable connection through bearings and rotating components; in this embodiment, the screening device 14 includes two bar screens 9 disposed obliquely downward and connected at the top, the gap between the bar screens 9 is adjustable between 5 mm and 20mm, and the lower ends of the two bar screens 9 are respectively provided with a material distributing partition plate 8. In this embodiment, when the material falls into the feeding channel 10 with a rectangular or square cross section from the top of the feeding channel 10 by its own weight, the material entering the feeding channel 10 will fall onto the top of the bar screen 9 first, the material with a particle size smaller than the gap of the bar screen falls into the lower part of the bar screen 9, the material with a particle size larger than the gap of the bar screen is blocked by the bar screen 9 and falls into the outer area of the material dividing partition 8, thus completing the material screening process, the material with a smaller particle size and most of the finer powder will fall into the middle area of the material dividing partition 8 with a rectangular cross section, while the material with a larger particle size will be concentrated into the area outside the material dividing partition 8 and fall down closely to the inner wall of the feeding channel 10, because the relative position of the coarse particle material is at the edge of the feeding area, the material will first contact the roller surface of the roller press to be crushed, the friction force of the roller surface to the, meanwhile, thinner powder is concentrated in the middle of the material extruding area, so that the material gap can be filled in time in the process of rolling and crushing, and the vibration caused by material crushing and rapid extrusion of air in the gap can be reduced; in addition, in this embodiment, the main frame 1, the swing arm 13, the first suspension pin 4, the second suspension pin 6, the swing frame 7, and the like form a set of four-bar linkage structure, the four-bar linkage structure can swing left and right under the action of the ejector device 3, and further drive the sieving device 14 to move left and right, and in the moving process, the material separation plate 8 and the bar screen 9 can always keep a vertical direction when being extruded by the material, the damage to the structure is minimal, the material separation plate 8 and the bar screen 9 move in the feeding channel 10, so that the particle size distribution state of the material in the feeding channel 10 is changed, and meanwhile, the material separation plate 8 and the bar screen 9 can be prevented from swinging back and forth under the condition of unbalanced extrusion force, and a stable position is kept.

In this embodiment, the ejector device 3 may be a hydraulic ejector rod, and has stable operation, the front end thereof is movably connected with the middle part of the ejector device connecting shaft 5, and the rear end thereof is movably connected and fixed with the main frame 1 through the rotatable ejector device base 2. .

Example 2:

on the basis of embodiment 1, in order to facilitate the automatic control of the floating feeding device of the roller press, as shown in fig. 1 to 5, the feeding device further includes a PLC controller 16 and a hydraulic station 17, wherein an angle sensor 15 is installed at an end of one of the first suspension pins 4, the ram device 3 is connected to the hydraulic station 17, and the hydraulic station 17 and the angle sensor 15 are respectively connected to the PLC controller 16 through a line. In this embodiment, the PLC controller 16 may be connected to a control system of the roller press, and transmits the running data of the roller press and the feedback data of the angle driver 15 to the hydraulic station 17 through a PLC program instruction, and controls the hydraulic station 17 to pump hydraulic oil into the ejector rod device 3 to drive the extension and retraction of the ejector rod device 3, so as to control the position of the sieving device 14 in the feeding channel 10, thereby changing the sieving distribution of the material and forming a closed-loop control.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. A floating type feeding device of a roller press comprises a main frame (1) and a feeding channel (10) vertically arranged on the main frame (1), and is characterized in that first suspension pin shafts (4) respectively penetrate through the two sides of the feeding channel (10) on the main frame (1) from front to back, and two ends of each suspension pin shaft (4) are respectively and movably connected with a swing arm (13); through holes (11) are respectively formed in the front side wall and the rear side wall of the lower portion of the feeding channel (10), a swinging frame (7) is arranged on the outer side of each through hole (11), a screening device (14) is further arranged inside the feeding channel (10), and the front side and the rear side of each screening device (14) are respectively connected and fixed with the two swinging frames (7); two ends of one swing frame (7) are respectively connected with two ends of the other swing frame (7) through second suspension pin shafts (6), and two ends of each second suspension pin shaft (6) are respectively movably connected with the lower end of a swing arm (13) at the end position; a mandril connecting shaft (5) is movably connected between the middle parts of the two swing arms (13) on the same side of the main frame (1), and a stabilizing rod (12) is connected between the middle parts of the two swing arms (13) on the other side; the middle part of the mandril device connecting shaft (5) is movably connected with a mandril device (3).

2. A floating feeding device of roller press as claimed in claim 1, characterized in that the screening device (14) comprises two bar screens (9) which are obliquely arranged downwards and connected at the top, and the lower ends of the two bar screens (9) are respectively provided with a material separating partition (8).

3. A floating feeding device for roller press according to claim 2, characterized in that the gap of the bar screen (9) is 5-20 mm.

4. The floating feeding device of the roller press as claimed in claim 1, wherein the push rod device (3) is a hydraulic push rod, the front end of the hydraulic push rod device is movably connected with the middle part of the push rod device connecting shaft (5), and the rear end of the hydraulic push rod device is movably connected and fixed with the main frame (1) through a rotatable push rod device base (2).

5. A floating feeding device for roller presses according to claim 1, characterized in that the feeding channel (10) is square or rectangular in cross section.

6. The floating feeding device of the roller press as claimed in claim 4, further comprising a PLC (programmable logic controller) controller (16) and a hydraulic station (17), wherein an angle sensor (15) is installed at an end of one of the first suspension pins (4), the ejector rod device (3) is connected with the hydraulic station (17), and the hydraulic station (17) and the angle sensor (15) are respectively connected to the PLC controller (16) through a line.