CN211806722U

CN211806722U - Chipping equipment for production of density fiberboard

Info

Publication number: CN211806722U
Application number: CN202020092704.7U
Authority: CN
Inventors: 苗润发
Original assignee: Tianjin Shengsong Wood Industry Co ltd
Current assignee: Tianjin Shengsong Wood Industry Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-30
Anticipated expiration: 2030-01-16

Abstract

The utility model relates to a production of density fiberboard is with equipment of chipping. The cutting device comprises a rotary roller support, a cutter mounting roller is rotatably connected onto the rotary roller support, and a plurality of groups of cutters are detachably connected onto the outer peripheral wall of the cutter mounting roller; a screen mesh piece detachably connected with the rotary roller support is arranged below the knife mounting roller; a plurality of groups of lower hobbing assemblies are rotatably connected at the feed end of the rotary roller support, a plurality of groups of upper hobbing assemblies are arranged above the lower hobbing assemblies, and a lifting driving device is connected on the upper hobbing assemblies; the outer peripheral surfaces of the upper hobbing component and the lower hobbing component are both in a sawtooth shape; a roller buckle cover is hinged on the roller support; rotary driving components are arranged on the lifting driving device and the roller support; the rotating directions of the upper hobbing assembly and the lower hobbing assembly are opposite; the cutting driving piece is used for driving the cutter mounting roller to rotate. The utility model discloses can solve the card material that current chipping machine often appears and collapse the material problem to reduce the size difference between the wood chip after the cutting.

Description

Chipping equipment for production of density fiberboard

Technical Field

The utility model belongs to the technical field of the fibreboard processing, especially, relate to a production of density fibreboard is with equipment of chipping.

Background

One of the boards is classified into low-Density, medium-Density and High-Density boards according to Density, and may be classified into fiber Density boards (also called Density fiberboard), plywood Density boards, wood shaving Density boards, and the like according to raw materials. The fiber density board is an artificial board made of wood fiber or other plant fiber as raw material, through breaking, fiber separation, drying, applying urea-formaldehyde resin or other suitable adhesives, and hot pressing. The fiberboard has the advantages of uniform material, small longitudinal and transverse strength difference, difficult cracking and the like, has wide application, requires 2.5-3 cubic meters of wood for manufacturing 1 cubic meter of fiberboard, can replace 3 cubic meters of sawn timber or 5 cubic meters of log, and is an effective way for comprehensively utilizing wood resources in the development of fiberboard production.

The raw material of the fiber density board is prepared by separating wood into fibers, and chipping is an important one-step process, and mainly chips meeting production specifications are chipped from wood such as poplar wood and the like so as to provide better conditions for fiber separation. The chipper is also called wood chipper, belonging to one of the wood processing series equipment. The method is widely applied to the material preparation workshop section in the production process of the industries of textile, papermaking, pulping, artificial board and the like.

In the working process, the conveying device is required to convey the wood into the chipper for chipping, the size of the chipper inlet is limited, the conventional chipper frequently has the phenomenon of material blockage and material collapse, and the safety is poor; in addition, the excessive size difference of the chippings during the use can affect the quality of the subsequent pressed molding of the fiber density board.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that exists among the known art and provide a compact structure, reasonable in design's density fiberboard production is with equipment of chipping, the utility model discloses the card material that can solve current chipping machine and often appear collapses the material problem to size difference between the wood chip after the cutting has been reduced.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a chipping device for producing a density fiberboard comprises a rotating roller support, wherein a cutter mounting roller is rotatably connected to the rotating roller support through a rolling bearing, and a plurality of groups of cutters distributed at equal angles in the circumferential direction are detachably connected to the outer circumferential wall of the cutter mounting roller; a screen mesh piece detachably connected with the rotary roller support is arranged below the knife mounting roller; a plurality of groups of lower hobbing assemblies which are transversely arranged in parallel are rotatably connected at the feed end of the rotary roller support, a plurality of groups of upper hobbing assemblies which are transversely arranged in parallel are arranged above the lower hobbing assemblies, and a lifting driving device for driving the plurality of groups of upper hobbing assemblies to synchronously and longitudinally move is connected on the upper hobbing assemblies; the outer peripheral surfaces of the upper hobbing component and the lower hobbing component are both in a sawtooth shape; a rotary roller buckle cover covering the outer side of the cutter mounting roller is hinged on the rotary roller support; the lifting driving device and the roller support are respectively provided with a rotary driving assembly, and the two groups of rotary driving assemblies are respectively used for driving the plurality of groups of upper hobbing assemblies and the plurality of groups of lower hobbing assemblies to synchronously rotate; the rotating directions of the upper hobbing assembly and the lower hobbing assembly are opposite; the cutting driving piece is used for driving the cutter mounting roller to rotate.

The utility model has the advantages that: the utility model provides a chipping device for producing density fiberboard, which is provided with a lifting driving device to drive an upper hobbing component to move longitudinally, and can clamp wood by matching with a lower hobbing component; the rotary driving assembly is arranged to drive the upper hobbing assemblies and the plurality of groups of lower hobbing assemblies to synchronously and reversely rotate, so that horizontal and stable feeding of wood is guaranteed, the phenomena of material blocking and material collapsing in the cutting process are prevented, and the safety and the production efficiency of equipment are improved; the cut wood chips can be screened by the screen mesh piece, so that the wood chips meeting the requirements and the wood chips not meeting the requirements are sorted, the size difference between the cut wood chips is reduced, and the quality of the pressed molding of the fiberboard is improved; the rotary roller buckle cover is arranged, so that the chipping equipment can be conveniently overhauled and the cutter can be conveniently replaced.

Preferably: the lifting driving device comprises a mounting plate fixedly connected to the top of the rotating roller support, a lifting driving piece with a downward extending end is fixedly connected to the mounting plate, a lifting seat is fixedly connected to the extending end of the lifting driving piece, a hobbing mounting seat is arranged below the lifting seat, a plurality of groups of lifting guide rods which are longitudinally arranged and are in sliding fit with the lifting seat are fixedly connected to the top of the hobbing mounting seat, and a jacking spring positioned between the lifting seat and the hobbing mounting seat is sleeved on each lifting guide rod; the multiple groups of upper hobbing assemblies are rotationally connected with the hobbing mounting base through rolling bearings.

Preferably: the rotary driving assembly comprises driven chain wheels which are in key connection with the hobbing assembly, and adjacent driven chain wheels are in transmission connection through chains; the gear hobbing machine is characterized by further comprising a hobbing driving piece, wherein a driving chain wheel is connected to an output shaft of the hobbing driving piece in a key mode, and the driving chain wheel is in transmission connection with a group of driven chain wheels through a chain.

Preferably: the upper hobbing assembly and the lower hobbing assembly are consistent in structure, the upper hobbing assembly comprises a hobbing mandrel, and a plurality of groups of hobbing parts are detachably connected to the outer peripheral wall of the hobbing mandrel; the multiple groups of the hobbing parts jointly form a columnar outer peripheral wall in a sawtooth shape.

Preferably: the screen mesh piece comprises an arc-shaped plate part and a straight plate part which are integrally formed, and a plurality of groups of material holes are formed in the arc-shaped plate part and the straight plate part; the arc-shaped plate part is bent towards the cutter mounting roller, the straight plate part is obliquely arranged, and the oblique direction is downward inclined from the discharging end to the feeding end.

Preferably: an opening and closing oil cylinder for driving the roller buckle cover to turn is hinged between the roller buckle cover and the roller support.

Drawings

Fig. 1 is a schematic view of the partial sectional structure of the front view of the present invention;

fig. 2 is a schematic perspective view of an upper hobbing assembly according to the present invention;

fig. 3 is a schematic perspective view of a screen member according to the present invention;

fig. 4 is a schematic view of the structure of the present invention.

In the figure: 1. a roller support; 2. a screen member; 2-1, straight plate portion; 2-2, arc plate portion; 2-3, material holes; 3. rotating the roller and buckling the cover; 4. a knife mounting roller; 5. a cutter; 6. a lift drive; 6-1, mounting a plate; 6-2, lifting a driving piece; 6-3, a lifting seat; 6-4, lifting guide rods; 6-5, tightly pushing the spring; 6-6, a hobbing mounting seat; 7. a gear hobbing drive; 8. a drive sprocket; 9. an upper hobbing assembly; 9-1, hobbing a mandrel; 9-2, a hobbing part; 10. a driven sprocket; 11. a lower hobbing assembly; 12. an opening and closing oil cylinder.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:

please refer to fig. 1, the chipping device for producing density fiberboard of the present invention comprises a roller support 1, a knife mounting roller 4 is rotatably connected to the roller support 1 through a rolling bearing, and a plurality of groups of cutters 5 distributed at equal angles in the circumferential direction are detachably connected to the outer circumferential wall of the knife mounting roller 4. The cutter mounting roller 4 comprises a columnar cutter holder body, a shaft hole is formed in the center of the cutter holder body, and a rotating shaft penetrates through the shaft hole; four arc-shaped notches and four mounting notches for mounting the cutters 5 are formed in the circumferential surface of the cutter holder body, and the four mounting notches are correspondingly arranged on one sides of the four arc-shaped notches. The cutter 5 is detachably attached to the cutter mounting roller 4 by a bolt and a lock nut. The roller support 1 is provided with a cutting driving member for driving the blade mounting roller 4 to rotate, the cutting driving member is a conventional technology in the field, and the blade mounting roller 4 can be driven to rotate by adopting a rotating motor matched with a belt and a belt pulley. In the present embodiment, the blade mounting roller 4 rotates clockwise.

A screen member 2 detachably connected to the roller support 1 is provided below the knife mounting roller 4, and a conveyor line (not shown) for conveying the wood chips to the next process is provided below the screen member 2. As shown in fig. 3, the screen member 2 comprises an arc-shaped plate portion 2-2 and a straight plate portion 2-1 which are integrally formed, and a plurality of groups of material holes 2-3 are formed in the arc-shaped plate portion 2-2 and the straight plate portion 2-1; the arc-shaped plate part 2-2 is bent toward the knife mounting roller 4, and the straight plate part 2-1 is obliquely arranged in such a manner that the oblique direction is inclined downward from the discharge end to the feed end. The upwarping end part of the straight plate part 2-1 and the lower end part of the arc-shaped plate part 2-2 are integrally formed, a receiving box or a linear conveying line (not shown in the figure) is arranged at the lower end part of the straight plate part 2-1, and the receiving box/the linear conveying line is used for receiving wood chips which do not meet the size requirement.

The cut wood chips can be screened by arranging the screen mesh component 2, and the wood chips meeting the size requirement fall onto a conveying line through the material holes 2-3 and are conveyed to the next working procedure; the wood chips not meeting the size requirement can not pass through the material holes 2-3 and then slide down along the surface of the screen member 2 to the material receiving box/linear conveying line under the action of gravity so as to be crushed again. The wood chips meeting the requirements and the wood chips not meeting the requirements can be sorted through the arrangement, the size difference between the cut wood chips is reduced, and the quality of the pressed forming of the fiberboard is improved.

As shown in fig. 1, a plurality of groups of lower hobbing assemblies 11 arranged in parallel in the transverse direction are rotatably connected to the feed end of the roller support 1, a plurality of groups of upper hobbing assemblies 9 arranged in parallel in the transverse direction are arranged above the lower hobbing assemblies 11, and the outer peripheral surfaces of the upper hobbing assemblies 9 and the lower hobbing assemblies 11 are both in a sawtooth shape. The upper hobbing assembly 9 and the lower hobbing assembly 11 are consistent in structure, and further referring to fig. 2, the upper hobbing assembly 9 comprises a hobbing mandrel 9-1, and a plurality of groups of hobbing parts 9-2 are detachably connected to the peripheral wall of the hobbing mandrel 9-1; the multiple groups of the hobbing parts 9-2 jointly form a columnar outer circumferential wall in a sawtooth shape. The saw-toothed shape of the peripheral walls of the upper hobbing assembly 9 and the lower hobbing assembly 11 can increase the friction between the hobbing assemblies and wood, so that the anti-skidding effect is achieved, and the feeding efficiency of the wood is increased.

As shown in fig. 1, a lifting driving device 6 for driving a plurality of groups of upper hobbing assemblies 9 to synchronously and longitudinally move is connected to the upper hobbing assemblies 9; the lifting driving device 6 comprises a mounting plate 6-1 fixedly connected to the top of the roller support 1, a lifting driving member 6-2 with a downward extending end is fixedly connected to the mounting plate 6-1, the lifting driving member 6-2 is a hydraulic cylinder or an air cylinder, and a magnetic switch (not shown in the figure) is mounted on the lifting driving member 6-2 and used for detecting the limit position of the extending end of the lifting driving member 6-2 and determining the limit position of the upper hobbing cutter assembly 9 in the up-and-down movement.

A lifting seat 6-3 is fixedly connected to the extending end of the lifting driving piece 6-2, a hobbing mounting seat 6-6 is arranged below the lifting seat 6-3, a plurality of groups of lifting guide rods 6-4 which are longitudinally arranged and are in sliding fit with the lifting seat 6-3 are fixedly connected to the top of the hobbing mounting seat 6-6, and a limiting plate for limiting is fixedly connected to the top of the lifting guide rods 6-4; a jacking spring 6-5 positioned between the lifting seat 6-3 and the hobbing mounting seat 6-6 is sleeved on the lifting guide rod 6-4; the multiple groups of upper hobbing assemblies 9 are rotationally connected with the hobbing mounting seats 6-6 through rolling bearings, and specifically, hobbing mandrels of the upper hobbing assemblies 9 are rotationally connected with the hobbing mounting seats 6-6. In addition, the hobbing spindle of the lower hobbing assembly 11 is rotationally connected with the roller support 1.

The lifting driving device 6 is arranged to drive the upper hobbing assembly 9 to move longitudinally, and the wood can be clamped by matching with the lower hobbing assembly 11; the lifting guide rod 6-4 and the jacking spring 6-5 are arranged to play a role in buffering, so that the impact force generated in the collision process of the upper hobbing assembly 9 and the wood is reduced.

As shown in fig. 1, the lifting driving device 6 and the roller support 1 are both provided with rotary driving components, and the two groups of rotary driving components are respectively used for driving a plurality of groups of upper hobbing components 9 and a plurality of groups of lower hobbing components 11 to synchronously rotate; the upper and lower hobbing assemblies 9, 11 rotate in opposite directions. The rotary drive assembly comprises driven sprockets 10 keyed to the hobbing assembly, in this embodiment, the driven sprockets 10 are double-row sprockets, and adjacent driven sprockets 10 are connected by a chain drive. The rotary driving assembly further comprises a hobbing driving piece 7, a driving chain wheel 8 is connected to an output shaft of the hobbing driving piece 7 in a key mode, and the driving chain wheel 8 is in transmission connection with a group of driven chain wheels 10 through a chain.

In the present embodiment, the upper hobbing assembly 9 rotates clockwise, the lower hobbing assembly 11 rotates counterclockwise, and the upper hobbing assembly 9 and the lower hobbing assembly 11 rotate synchronously. The timber is held by the upper and lower hobbing assemblies 9 and 11 and the lifting drive 6 which rotate synchronously, and is conveyed under the knife mounting roller 4 for cutting operation. In the cutting process, the lifting driving device 6 and the upper hobbing assembly 9 act together to press wood onto the transmission surface of the lower hobbing assembly 11, so that the horizontal and stable feeding of the wood is ensured, the phenomena of material blocking and material collapsing in the cutting process are prevented, and the safety and the production efficiency of equipment are improved.

As shown in fig. 1 and 4, a roller buckle cover 3 covering the outer side of the knife mounting roller 4 is hinged on the roller support 1, an opening and closing oil cylinder 12 for driving the roller buckle cover 3 to turn is hinged between the roller buckle cover 3 and the roller support 1, a cylinder barrel of the opening and closing oil cylinder 12 is hinged with the roller support 1 through a hinge seat and a pin shaft, and a piston rod is hinged with the roller buckle cover 3 through a hinge seat and a fisheye joint. The opening and closing oil cylinder 12 is provided with a magnetic switch (not shown in the figure) for detecting the limit position of the extending end of the opening and closing oil cylinder 12 and determining the limit position of the overturning movement of the roller buckle cover 3. The slicing equipment is convenient to overhaul and replace the cutter 5 by arranging the roller buckle cover 3, the roller buckle cover 3 is driven to overturn by the opening and closing oil cylinder 12 to replace the manual overturning roller buckle cover 3, and the manual labor intensity is reduced.

The utility model discloses still include control system, control system includes control switch and controlling means for example the PLC controller, in addition, lift driving piece 6-2, gear hobbing driving piece 7, rotation motor and the hydro-cylinder 12 that opens and shuts all realize the electricity with controlling means and be connected.

The working process is as follows: starting a control switch, controlling the extension end of the lifting driving piece 6-2 to extend out of a preset distance by a control device, simultaneously starting a hobbing driving piece 7 by the control device to drive an upper hobbing assembly 9 and a lower hobbing assembly 11 to synchronously and reversely rotate, and starting a rotating motor by the control device to drive a cutter mounting roller 4 to clockwise rotate; the conveying device matched with the chipping equipment conveys the wood into the feeding ends of the upper hobbing assembly 9 and the lower hobbing assembly 11, and the upper hobbing assembly 9 and the lower hobbing assembly 11 work together to clamp the wood and convey the wood to the lower part of the cutter mounting roller 4 for cutting operation. The screen mesh component 2 screens the cut wood chips, the wood chips meeting the size requirement fall onto a conveying line matched with chipping equipment through the material holes 2-3, and the wood chips are conveyed to the next working procedure; the wood chips which do not meet the size requirement can not pass through the material holes 2-3 and then stay on the screen mesh member 2, and then slide down to the material receiving box/linear conveying line along the surface of the screen mesh member 2 under the action of gravity, so as to be crushed again.

Claims

1. The utility model provides a production of density fiberboard is with chipping equipment which characterized by: the rotary cutting device comprises a rotary roller support (1), wherein a cutter mounting roller (4) is rotatably connected to the rotary roller support (1) through a rolling bearing, and a plurality of groups of cutters (5) distributed at equal angles in the circumferential direction are detachably connected to the outer circumferential wall of the cutter mounting roller (4); a screen mesh piece (2) detachably connected with the rotary roller support (1) is arranged below the knife mounting roller (4); a plurality of groups of lower hobbing assemblies (11) which are transversely arranged in parallel are rotatably connected at the feed end of the rotary roller support (1), a plurality of groups of upper hobbing assemblies (9) which are transversely arranged in parallel are arranged above the lower hobbing assemblies (11), and a lifting driving device (6) for driving the plurality of groups of upper hobbing assemblies (9) to synchronously and longitudinally move is connected on the upper hobbing assemblies (9); the outer peripheral surfaces of the upper hobbing assembly (9) and the lower hobbing assembly (11) are both in a sawtooth shape; a rotary roller buckle cover (3) which covers the outer side of the knife mounting roller (4) is hinged on the rotary roller support (1); the lifting driving device (6) and the roller support (1) are respectively provided with a rotary driving component, and the two groups of rotary driving components are respectively used for driving a plurality of groups of upper hobbing components (9) and a plurality of groups of lower hobbing components (11) to synchronously rotate; the rotation directions of the upper hobbing assembly (9) and the lower hobbing assembly (11) are opposite; the cutting and driving device also comprises a cutting driving piece for driving the cutter mounting roller (4) to rotate.

2. The shaving apparatus for producing a density fiberboard of claim 1, wherein: the lifting driving device (6) comprises a mounting plate (6-1) fixedly connected to the top of the roller support (1), a lifting driving piece (6-2) with an extending end facing downwards is fixedly connected to the mounting plate (6-1), a lifting seat (6-3) is fixedly connected to the extending end of the lifting driving piece (6-2), a hobbing mounting seat (6-6) is arranged below the lifting seat (6-3), a plurality of groups of lifting guide rods (6-4) which are longitudinally arranged and are in sliding fit with the lifting seat (6-3) are fixedly connected to the top of the hobbing mounting seat (6-6), and a jacking spring (6-5) positioned between the lifting seat (6-3) and the hobbing mounting seat (6-6) is sleeved on the lifting guide rod (6-4); the multiple groups of upper hobbing assemblies (9) are rotationally connected with the hobbing mounting seats (6-6) through rolling bearings.

3. The shaving apparatus for producing a density fiberboard of claim 1, wherein: the rotary driving assembly comprises driven chain wheels (10) which are in key connection with the hobbing assembly, and adjacent driven chain wheels (10) are in transmission connection through chains; the gear-type transmission mechanism is characterized by further comprising a hobbing driving piece (7), wherein a driving chain wheel (8) is connected to an output shaft of the hobbing driving piece (7) in a key mode, and the driving chain wheel (8) is in transmission connection with a group of driven chain wheels (10) through a chain.

4. The shaving apparatus for producing a density fiberboard of claim 1, wherein: the upper hobbing assembly (9) and the lower hobbing assembly (11) are consistent in structure, the upper hobbing assembly (9) comprises a hobbing mandrel (9-1), and a plurality of groups of hobbing parts (9-2) are detachably connected to the outer peripheral wall of the hobbing mandrel (9-1); the multiple groups of the hobbing parts (9-2) jointly form a columnar outer circumferential wall in a sawtooth shape.

5. The shaving apparatus for producing a density fiberboard of claim 1, wherein: the screen mesh part (2) comprises an arc-shaped plate part (2-2) and a straight plate part (2-1) which are integrally formed, and a plurality of groups of material holes (2-3) are formed in the arc-shaped plate part (2-2) and the straight plate part (2-1); the arc-shaped plate part (2-2) is bent towards the knife mounting roller (4), and the straight plate part (2-1) is obliquely arranged and the oblique direction is downward inclined from the discharging end to the feeding end.

6. The shaving apparatus for producing a density fiberboard of claim 1, wherein: an opening and closing oil cylinder (12) for driving the roller buckle cover (3) to turn over is hinged between the roller buckle cover (3) and the roller support (1).