CN112476828A

CN112476828A - Calendering granulator

Info

Publication number: CN112476828A
Application number: CN202011234307.XA
Authority: CN
Inventors: 王翔; 孙后恩
Original assignee: Nanjing Juli Chemical Machinery Co ltd
Current assignee: Nanjing Juli Chemical Machinery Co ltd
Priority date: 2020-11-07
Filing date: 2020-11-07
Publication date: 2021-03-12
Anticipated expiration: 2040-11-07
Also published as: CN112476828B

Abstract

The application discloses a calendering granulator, which comprises a rack, wherein a rolling mechanism is arranged on the rack, the rolling mechanism comprises a first squeeze roller and a second squeeze roller, a plurality of first squeeze grooves are uniformly distributed on the roller surface of the first squeeze roller, and each first squeeze groove extends through two end surfaces of the roller surface along the length direction of the axial line of the roller surface; two end surfaces of the first extrusion roller are respectively provided with a forming ring, the forming rings are provided with discharge holes, and the discharge holes are communicated with the first extrusion groove; the roll surface of the second extrusion roll is uniformly distributed with a plurality of second extrusion grooves, each second extrusion groove is distributed along the length direction of the axis of the roll surface, two ends of each second extrusion groove are blocked, and a cutter mechanism is arranged at a discharge hole of the forming ring. The utility model provides a calendering granulator ejection of compact is fast, has improved production efficiency, and the dissection is carried out after the whole process ejection of compact in addition, need not carry out long distance transport cooling, has reduced the volume of whole production facility.

Description

Calendering granulator

Technical Field

The application relates to the technical field of granulators, in particular to a calendering granulator.

Background

At present, a granulator basically adopts a screw or double-screw extruder to extrude materials, then the materials are cooled and cut into sections, and after the materials are extruded, the strip-shaped materials need to be conveyed and cooled for a long distance, so that the occupied space of the whole equipment production line is large, and the production efficiency is low.

Disclosure of Invention

The utility model provides a problem that the production line occupation space is great, and production efficiency is low is in order to solve above-mentioned equipment, provides a calendering granulator.

In order to achieve the purpose, the method adopted by the application is as follows: a calendering granulator comprises a rack, wherein a rolling mechanism is arranged on the rack and comprises a first extrusion roller and a second extrusion roller, wherein a plurality of first extrusion grooves are uniformly distributed on the roller surface of the first extrusion roller, and each first extrusion groove extends through two end surfaces of the roller surface along the length direction of the axial line of the roller surface; two end surfaces of the first extrusion roller are respectively provided with a forming ring, the forming rings are provided with discharge holes, and the discharge holes are communicated with the first extrusion groove; the roll surface of the second extrusion roll is uniformly distributed with a plurality of second extrusion grooves, each second extrusion groove is distributed along the length direction of the axis of the roll surface, two ends of each second extrusion groove are blocked, and a cutter mechanism is arranged at a discharge hole of the forming ring.

Through the technical scheme, the molten material gets into rolling mechanism from between first squeeze roll and the second squeeze roll, rotate through first squeeze roll and second squeeze roll and extrude, impress the material in the first extrusion inslot on the first squeeze roll, and extrude to both ends from first extrusion inslot, the material after the extrusion flows into the discharge opening on the both ends shaping ring in following first extrusion inslot, and go out the strip material from the discharge opening, the strip material of extruding in the discharge opening is cut into the segment through cutter mechanism. The mode is fast in discharging speed, production efficiency is improved, and in addition, the whole process is cut after discharging, long-distance conveying and cooling are not needed, and the size of the whole production equipment is reduced.

Optionally, the cross section of the first extrusion groove is U-shaped, and the cross section of the second extrusion groove is triangular.

Through the technical scheme, the specification of a product can be determined according to the size of the first extrusion groove through the U-shaped first extrusion groove, and meanwhile, materials can smoothly flow into the discharge holes of the forming rings on two sides of the first extrusion roller from the first extrusion groove; through the second extrusion groove that the cross-section is the triangle-shaped structure, can rub the material thin, prevent to dope granular material in the melting material, guarantee the quality of product, also can be with the melting material compaction that gets into in the first extrusion groove of U type simultaneously through the second extrusion groove.

Optionally, the first extrusion roll and the second extrusion roll are both heatable structures.

Through above-mentioned technical scheme, set first squeeze roll and second squeeze roll to heatable structure, when the material gets into and extrudees between first squeeze roll and the second squeeze roll, can heat first squeeze roll and second squeeze roll according to the demand, guaranteed that the material keeps the molten condition when the extrusion, prevent that the material cooling from solidifying, guaranteed the quality of product.

Optionally, the cutter mechanism includes a knife rest and a blade, the blade is arranged on the knife rest, and the blade is driven to rotate by a blade driving mechanism; one end of the tool rest is connected with the rack and can rotate around the connecting part of the tool rest, and the rack is also provided with a limiting mechanism for limiting the rotation angle of the tool rest.

Through above-mentioned technical scheme, cutter mechanism can rotate round the connecting portion of knife rest and frame, when needs overhaul, can pull out the knife rest together with the cutter, has guaranteed the security.

Optionally, a tension spring is further disposed on the tool holder and connected to the frame.

Through above-mentioned technical scheme, be connected through tension spring and knife rest, can be taut with the knife rest, the fixed of the knife rest of being convenient for, simultaneously through tension spring, also be convenient for pull out the knife rest fast and the return.

Optionally, the distance between the blade of the cutter mechanism and the end face of the forming ring is 1-3 mm.

Through the technical scheme, the blade of the cutter mechanism is close to the end face of the tightly-attached forming ring, so that the material can be cut off immediately when coming out from the discharge hole of the forming ring, the problem that the wire drawing is too long when coming out from the discharge hole is solved, the cut surface is smooth, and the quality of particles is improved.

Optionally, a material guide chute is arranged below each cutter mechanism, a material outlet of one material guide chute is connected to the conveying belt through a vibration material guide chute, and a material outlet of the other material guide chute is directly connected to the conveying belt.

Through the technical scheme, one part of the cut particles is directly sent to the conveying belt through the guide chute, the other part of the cut particles is sent to the conveying belt through the guide chute and the vibration guide chute in a vibration mode to be cooled, and the particles are spread out through the vibration guide chute in the process, so that the particle bonding condition can be reduced.

Optionally, the second pressing roll is mounted on a second bearing block, and the second bearing block is a movable mechanism.

Through above-mentioned technical scheme, set second bearing frame to a mobilizable mechanism, can be through removing the back with second bearing frame, with second squeeze roll and first squeeze roll separation, be convenient for overhaul like this.

Optionally, a driving mechanism is arranged on the frame, and the driving mechanism is connected with the second bearing seat to drive the second bearing seat to translate along the frame.

Through above-mentioned technical scheme, drive the second bearing frame through actuating mechanism and remove, so just can drive the second bearing frame and move outward together with the second squeeze roll and overhaul, overhaul the completion back, then can improve the convenience of overhauing with the second bearing frame together with the return of second squeeze roll through actuating mechanism.

Optionally, a guide roller is arranged between the bottom of the second bearing seat and the frame, and a displacement sensor is arranged on the second bearing seat.

Through the technical scheme, when the driving mechanism drives the second bearing seat to return, the accuracy of the gap between the second extrusion roller and the first extrusion roller can be guaranteed when the second bearing seat returns, the production quality is guaranteed, and meanwhile, the distance between the first extrusion roller and the second extrusion roller can be accurately adjusted through the displacement sensor, so that the device can adapt to processing of different materials.

To sum up, the beneficial technical effect of this application does:

1. rotate through first squeeze roll and second squeeze roll and extrude, in the first extrusion inslot on the first squeeze roll of impressing the material, and extrude to both ends from first extrusion inslot, the material after the extrusion flows into in the discharge opening on the both ends shaping ring from first extrusion inslot, and go out the bar material from the discharge opening, the bar material of extruding in the discharge opening is cut into the segment through cutter mechanism, such mode ejection of compact is fast, the production efficiency is improved, in addition, the whole process ejection of compact back is cut the section, long distance transport cooling need not carry out, whole production facility's volume has been reduced.

2. The specification of a product can be determined according to the size of the first extrusion groove through the U-shaped first extrusion groove, and meanwhile, materials can smoothly flow into the discharge holes of the forming rings on the two sides of the first extrusion roller from the first extrusion groove; through the second extrusion groove that the cross-section is the triangle-shaped structure, can rub the material thin, prevent to dope granular material in the melting material, guarantee the quality of product, also can be with the melting material compaction that gets into in the first extrusion groove of U type simultaneously through the second extrusion groove.

3. The cutter mechanism can rotate around the connecting part of the cutter frame and the rack, and when the maintenance is needed, the cutter frame and the cutter can be pulled out, so that the safety is ensured; the tool rest can be tensioned through the connection of the tension spring and the tool rest, so that the tool rest is convenient to fix, and meanwhile, the tool rest can be conveniently and rapidly pulled out and returned through the tension spring; the blade is close to hug closely the terminal surface of shaping ring, and when the material came out from the discharge gate of shaping ring like this, just can be cut off at once, has guaranteed like this that the material comes out from the discharge gate and can not appear the problem of wire drawing overlength for the cut surface is level and smooth, has improved the quality of granule.

4. The second bearing seat and the second extrusion roller are driven by the driving mechanism to move outwards for maintenance, and after the maintenance is finished, the second bearing seat and the second extrusion roller can return through the driving mechanism, so that the convenience of maintenance is improved; meanwhile, the accuracy of the gap between the second squeezing roller and the first squeezing roller in the return process can be guaranteed by arranging the displacement sensor, and the distance between the first squeezing roller and the second squeezing roller can be accurately adjusted by arranging the displacement sensor, so that the device can adapt to processing of different materials.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a schematic structural diagram of the present application from above;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 of the present application;

FIG. 4 is a cross-sectional view of a first press roll of the present application;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2 of the present application;

FIG. 6 is an enlarged view of section C of FIG. 5 of the present application;

FIG. 7 is an enlarged view of section D of FIG. 5 of the present application;

FIG. 8 is a schematic structural diagram illustrating a view of a cutter mechanism according to an embodiment of the present disclosure;

FIG. 9 is an enlarged view of section E of FIG. 8 of the present application;

FIG. 10 is a schematic structural view of embodiment 2 of the present application;

fig. 11 is a cross-sectional view of the drive mechanism of the present application.

The parts in the figure are: 1. a first squeeze roll; 2. a second squeeze roll; 3. forming a ring; 4. a cutter mechanism; 5. a material guide chute; 6. a vibration guide chute; 7. a second bearing housing; 8. a drive mechanism; 9. a displacement sensor; 10. a frame; 11. a conveyor belt; 12. a base; 13. a first bearing housing; 14. a first main motor; 15. a second main motor; 16. a primary universal coupling; 17. a connecting rod; 18. a baffle plate; 19. a rotary joint; 20. a baffle ring; 21. a connecting shaft; 22. a main chain; 23. a universal coupling; 24. A blade main sprocket; 25. a main gear; 26. a blade slave sprocket; 27. a chain; 28. a driven gear; 101. a first extrusion groove; 102. a first roll core; 103. a first roll shell; 104. a first oil inlet passage; 105. a first spiral channel; 106. a first oil return passage; 201. a second extrusion groove; 202. a second roll core; 203. a second roll shell; 204. a second oil inlet passage; 205. a second spiral channel; 206. a second oil return passage; 301. a discharge hole; 401. a tool holder; 402. a blade; 403. a tension spring; 404. a first limit pin; 405. a second limit pin; 701. a guide roller; 702. mounting a bracket; 801. a drive motor; 802. a worm gear reducer; 803. a screw rod; 804. a connecting seat.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

Example 1:

referring to fig. 1 and fig. 2, the embodiment discloses a calendering granulator, which includes a base 12 and a frame 10 disposed on the base 12, wherein a rolling mechanism is disposed on the frame 10, the rolling mechanism includes a first squeeze roll 1 and a second squeeze roll 2, two ends of the first squeeze roll 1 are mounted on the frame 10 through a first bearing seat 13, and two ends of the second squeeze roll 2 are fixed on the frame 10 through a second bearing seat 7. Since the first and second squeeze rolls 1, 2 are heavy, lubrication by lubricating oil is required on both the first and second bearing blocks 13, 7.

Referring to fig. 1 and 2, a main driving mechanism for driving the first squeezing roller 1 and the second squeezing roller 2 to rotate is further arranged on the base 12, the main driving mechanism comprises a first main motor 14 and a second main motor 15, and the first main motor 14 is connected with the first squeezing roller 1 through a main universal coupling 16 to drive the first squeezing roller 1 to rotate. The second main motor 15 is connected with the second extrusion roller 2 through a main universal coupling 16, drives the second extrusion roller 2 to rotate, and the first extrusion roller 1 and the second extrusion roller 2 rotate oppositely.

Referring to fig. 1 and 2, two connecting rods 17 are further arranged on the frame 10, a baffle 18 is arranged on each connecting rod 17, the two baffles 18 form a feeding hopper for feeding, and the molten material enters the first extrusion roller 1 and the second extrusion roller 2 from the feeding hopper for extrusion discharging.

Referring to fig. 1 and 2, the first squeeze roll 1 and the second squeeze roll 2 are both heatable structures, and when a material enters between the first squeeze roll 1 and the second squeeze roll 2 for squeezing, the first squeeze roll 1 and the second squeeze roll 2 can be heated according to requirements, so that the material is kept in a molten state during squeezing, the material is prevented from being cooled and solidified, and the quality of the product is ensured.

Referring to fig. 3 and 4, in the present embodiment, the first squeeze roller 1 includes a first roller core 102 and a first roller shell 103, the first roller shell 103 is sleeved on the first roller core 102, a rotary joint 19 is disposed at one end of the first roller core 102, a heat transfer oil channel is disposed in the first roller core 102, and the heat transfer oil channel includes a first oil inlet channel 104 disposed at an axial position of the first roller core 102, a first spiral channel 105 disposed at a circumferential surface of the first roller core 102, and a first oil return channel 106. The heat conducting oil enters the oil inlet channel 104 through the oil inlet of the rotary joint 19, heats the first roll sleeve 103 through the first spiral channel 105 on the circumferential surface of the first roll core 102, passes through the first oil return channel 106, and finally flows out through the oil outlet of the rotary joint 19, so that the heating process of the first squeeze roll 1 is completed.

Referring to fig. 3 and 4, the second squeeze roll 2 includes a second roll core 202 and a second roll sleeve 203, the second roll sleeve 203 is sleeved on the second roll core 202, a rotary joint 19 is arranged at one end of the second roll core 202, a heat transfer oil channel is arranged in the second roll core 202, and the heat transfer oil channel includes a second oil inlet channel 204 arranged at an axial position of the second roll core 202, a second spiral channel 205 arranged at a circumferential surface of the second roll core 202, and a second oil return channel 106. The heat conducting oil enters the second oil inlet channel 204 through the oil inlet of the rotary joint 19, heats the second roller sleeve 203 through the second spiral channel 205 on the circumferential surface of the second roller core 202, passes through the second oil return channel 206, and finally flows out through the oil outlet of the rotary joint 19, so that the heating process of the second squeeze roller 2 is completed.

Referring to fig. 5 and 6, a plurality of first squeezing grooves 101 are uniformly distributed on the roll surface of the first squeezing roll 1, that is, on the outer circumferential surface of the first roll mantle 103, and the cross section of the first squeezing grooves 101 is U-shaped.

Referring to fig. 1 and 6, each first pressing groove 101 extends through both end surfaces of the roll surface in the axial length direction of the roll surface; two end faces of the first extrusion roller 1 are respectively provided with a forming ring 3, the forming ring 3 is provided with a plurality of discharge holes 301, the discharge holes 301 are distributed along the circumferential direction of the forming ring 3, the discharge holes 301 are communicated with the first extrusion grooves 101, that is, each first extrusion groove 101 corresponds to one discharge hole 301, the forming ring 3 is connected with the first roller sleeve 103 of the first extrusion roller 1 by a positioning pin, and thus, each discharge hole 301 on the forming ring 3 corresponds to one first extrusion groove 101. Through the U-shaped first extrusion groove 101, the specification of a product can be determined according to the size of the first extrusion groove 101, and meanwhile, materials can smoothly flow into the discharge holes 301 of the forming rings 3 on the two sides of the first extrusion roller 1 from the first extrusion groove 101, and are discharged and shaped through the discharge holes 301.

Referring to fig. 1 and 7, a plurality of second squeezing grooves 201 are uniformly distributed on the roll surface of the second squeezing roll 2, that is, on the outer circumferential surface of the second roll sleeve 203, and the cross section of the second squeezing grooves 201 is of a triangular structure, specifically, a hook-shaped structure. Each second extrusion groove 201 extends through two end surfaces of the roll surface along the length direction of the axis of the roll surface, and two end surfaces of the second extrusion roll 2 are respectively provided with a stop ring 20 to block two ends of the second extrusion groove 201. Through the second extrusion groove 201 with the triangular cross section, materials can be kneaded to be thin, granular materials are prevented from being doped in the molten materials, the quality of products is guaranteed, and meanwhile, the molten materials entering the U-shaped first extrusion groove 101 can be compacted through the second extrusion groove 201.

Referring to fig. 1, after the material extruded by the first extrusion roller 1 and the second extrusion roller 2 is discharged through the discharge hole 301 on the forming ring 3, the material needs to be cut into sections, and therefore, the cutter mechanism 4 is arranged at the discharge hole 301 of the forming ring 3 and used for cutting the material discharged from the discharge hole 301 into sections.

Referring to fig. 8 and 9, the cutter mechanism 4 includes a cutter frame 401 and a blade 402, the blade 402 is disposed on the cutter frame 401 with a distance of 1-3mm between the blade 402 and the end surface of the forming ring 3. The blade 402 is rotated by a blade drive mechanism. Therefore, the blade driving mechanism drives the blade 402 to rotate, and the material discharged from the discharge hole 301 is cut into sections. Because the distance between the blade 402 and the end face of the forming ring 3 is 1-3mm, which is equivalent to the blade 402 clinging to the end face of the forming ring 3, when the material comes out from the discharge hole 301 of the forming ring 3, the material can be cut off immediately, so that the problem of too long drawn wire when the material comes out from the discharge hole 301 is ensured, the cut surface is smooth, and the quality of particles is improved.

With continued reference to fig. 8 and 9, since the blade 402 is close to the end face of the forming ring 3, when the first squeeze roller 1 needs to be repaired, the blade 402 needs to be removed to prevent the blade 402 from injuring the operator, and therefore, in the present embodiment, the cutter mechanism 4 is configured to be rotatable, and when the repair is needed, the cutter mechanism 4 can be removed. In this embodiment, one end of the tool holder 401 is connected to the frame 10 and can rotate around the connecting portion, and the frame 10 is further provided with a limiting mechanism for limiting the rotation angle of the tool holder 401, wherein the limiting mechanism comprises a first limiting pin 404 and a second limiting pin 405, and when the tool holder 401 rotates and collides with the first limiting pin 404, the blade 402 is separated from the forming ring 3 and rotates in place; when the tool holder 401 is rotated against the second restraint pin 405, it represents that the blade 402 has been rotated into the working position. A tension spring 403 is also arranged on the tool holder 401 and connected to the machine frame 10. The tool holder 401 can be tensioned by connecting the tension spring 403 with the tool holder 401, so that the tool holder 401 can be fixed conveniently, and the tool holder 401 can be pulled out and returned quickly by the tension spring 403.

With continued reference to fig. 1, a material guiding chute 5 is provided below each cutter mechanism 4 for guiding the cut particles, wherein a discharge port of the material guiding chute 5 near one side of the main driving mechanism is directly connected with a conveying belt 11, and the material is fed onto the conveying belt 11 for heat dissipation. The discharge hole of the guide chute 5 far away from one side of the main driving mechanism is connected to the conveying belt 11 through a vibration guide chute 6, the vibration guide chute 6 is of an inclined structure, namely the height of the end, connected with the guide chute 5, of the vibration guide chute 6 is higher than that of the end, connected with the conveying belt 11, of the vibration guide chute 6, and therefore cut materials can be conveyed to the conveying belt 11 from the vibration guide chute 6 conveniently. The conveyor belt 11 is driven by a conveyor belt drive mechanism.

In order to reduce cost, the energy saving reduces the use of motor, drives blade actuating mechanism, conveyer belt actuating mechanism adoption same power supply in this embodiment, and concrete structure is as follows:

referring to fig. 1 and 8, a bearing seat is provided on the base 12, a connecting shaft 21 is provided on the bearing seat, the connecting shaft 21 includes a multi-section structure, and the sections are connected by a universal coupling 26. One end of the connecting shaft 21, which is close to the first main motor 14, is provided with a driven sprocket, a driving sprocket is sleeved on the main universal coupling 16 connected with the first main motor 14, and the driving sprocket and the driven sprocket are connected through a main chain 22. Two main blade sprockets 24 and a main gear 25 are provided on the connecting shaft 21, wherein the two main blade sprockets 24 are connected to the auxiliary blade sprockets 26 on the blade carrier 401 by chains 27, respectively. The main gear 25 meshes with a driven gear 28 on a drive roller on the conveyor belt drive mechanism. Thus, when the first main motor 14 rotates, the connecting shaft 21 is rotated by the main chain 22, the connecting shaft 21 is rotated, and thereby the two blade main sprockets 24 and the one main gear 25 are rotated, and the two blade main sprockets 24 respectively rotate the two blade sub sprockets 26, thereby rotating the blade 402. The main gear 25 rotates to drive the driven gear 28 engaged therewith to rotate, thereby driving the driving roller of the conveyer belt driving mechanism to rotate and driving the conveyer belt 11 to transmit.

The working process of the embodiment is as follows:

firstly, the equipment is started, the first main motor 14 and the second main motor 15 respectively drive the first squeeze roller 1 and the second squeeze roller 2 to rotate oppositely, and meanwhile, the first main motor 14 rotates, the driving chain wheel on the main universal coupling 16 rotates, the main chain 22 drives the connecting shaft 21 to rotate, and then the blade 402 rotates, and the conveying belt 11 is driven to transmit.

Molten material is poured into a feeding hopper formed by two baffles 18, the molten material enters between the first extrusion roller 1 and the second extrusion roller 2 for rolling, and the first extrusion roller 1 and the second extrusion roller 2 are heated by conducting hot oil from a rotating joint 19 to the first extrusion roller 1 and the second extrusion roller 2. The material gets into and extrudees between first squeeze roll 1 and the second squeeze roll 2, through becoming triangle-shaped's second squeeze groove 201, thin kneading the material, also can be with the melting material compaction that gets into in the first squeeze groove 101 of U type, along with mutual extrusion between first squeeze roll 1 and the second squeeze roll 2, the melting material is extruded to both sides from the centre of the first squeeze groove 101 of U type, gets into from the both ends of first squeeze groove 101 in the shaping ring 3 at last, through the plastic, extrudes from discharge opening 301.

The material extruded from the discharging hole 301 is cut by the blade 402 of the cutter mechanism 4 and cut into a section of granular material. One part of the cut particles is directly sent to a conveyer belt 11 through a guide chute 5, the other part of the cut particles is sent to the conveyer belt 11 through vibration in the guide chute 5 and a vibration guide chute 6, the particles are cooled on the conveyer belt 11, and the conveyer belt 11 sends the cooled particles to a cyclone separator for graded packing, thus finishing the whole production process.

Example 2:

the rest of the present embodiment is the same as embodiment 1, except that in the present embodiment, since the first squeeze roll 1 and the second squeeze roll 2 have a large weight and are close to each other, the maintenance is not convenient, in the present embodiment, the second squeeze roll 2 is configured as a movable mechanism, so that when the maintenance is needed, the second squeeze roll 2 can be moved out for maintenance, and the second squeeze roll 2 is returned after the maintenance is completed. The specific mounting structure of the second press roll 2 is as follows:

referring to fig. 10 and 11, the second bearing housing 7 is clamped on the frame 10 by a mounting bracket 702, a plurality of sets of parallel guide rollers 701 are disposed on the mounting bracket 702, and the guide rollers 701 are abutted against the frame 10. The machine frame 10 is provided with a driving mechanism 8 for driving the second bearing seat 7 to move together with the second squeeze roll 2 mounted thereon, the driving mechanism 8 includes a driving motor 801, a worm and gear speed reducer 802 and a screw-nut mechanism, the driving motor 801 is connected with one end of a screw 803 of the screw-nut mechanism through the worm and gear speed reducer 802, and the other end of the screw 803 is fixed with the mounting bracket 702 of the second bearing seat 7 through a connecting seat 804. The driving motor 801 rotates, the worm gear reducer 802 drives the lead screw 803 to rotate, and the lead screw 803 rotates to drive the second bearing seat 7 to move. In this embodiment, the driving motor 801 may be a motor with a brake, so that the brake can be quickly positioned, and the moving-out and returning positions of the second bearing seat 7 can be quickly and accurately controlled.

In order to ensure the position accuracy when the driving motor 801 drives the second bearing seat 7 to move, specifically to ensure the accuracy of the position when the driving motor 801 drives the second bearing seat 7 to return after maintenance, a displacement sensor 9 is arranged between the mounting bracket 702 of the second bearing seat 7 and the machine frame 10, so that when the maintenance is completed, the driving motor 801 drives the second bearing seat 7 to return, the same distance can be returned according to the distance of moving out, and the same gap between the first extrusion roller 1 and the second extrusion roller 2 before and after maintenance is ensured. The gap between the first press roll 1 and the second press roll 2 is of course accurately adjusted by means of the displacement sensor 9 also in dependence of the degree of denseness of the different material.

The working process of the embodiment is as follows:

when the first squeeze roller 1 and the second squeeze roller 2 need to be overhauled, the screw rod 803 is driven to rotate through the driving motor 801 and the worm gear speed reducer 802, the screw rod 803 rotates to drive the second bearing seat 7 to move, the second bearing seat 7 is pulled towards the direction far away from the first squeeze roller 1, and as the plurality of groups of guide rollers 701 arranged in parallel are arranged on the mounting bracket 702 on the second bearing seat 7, the second bearing seat 7 is smooth in the moving process, after the first squeeze roller 1 and the second squeeze roller 2 are pulled to a certain distance, the driving motor 801 stops rotating, the first squeeze roller 1 and the second squeeze roller 2 can be overhauled, and at the moment, the displacement sensor 9 records the moving distance of the second bearing seat 7.

After the overhaul is finished, the second extrusion roll 2 needs to be returned, at the moment, the driving motor 801 and the worm gear speed reducer 802 drive the screw rod 803 to rotate reversely, the screw rod 803 rotates to drive the second bearing seat 7 to return reversely, and the same distance is moved reversely according to the distance recorded by the displacement sensor 9, so that the gap between the first extrusion roll 1 and the second extrusion roll 2 after returning is the same as that before overhaul, and the production precision is guaranteed.

The above embodiments are all preferred embodiments of the present application, and the scope of protection of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A calendering granulator comprising a machine frame (10), characterized in that: a rolling mechanism is arranged on a rack (10), and comprises a first extrusion roller (1) and a second extrusion roller (2), wherein a plurality of first extrusion grooves (101) are uniformly distributed on the roller surface of the first extrusion roller (1), and each first extrusion groove (101) extends through two end surfaces of the roller surface along the length direction of the axial line of the roller surface; forming rings (3) are respectively arranged on two end faces of the first extrusion roller (1), discharge holes (301) are formed in the forming rings (3), and the discharge holes (301) are communicated with the first extrusion groove (101); the roller surface of the second extrusion roller (2) is uniformly distributed with a plurality of second extrusion grooves (201), each second extrusion groove (201) is distributed along the length direction of the axis of the roller surface, two ends of each second extrusion groove (201) are blocked, and a cutter mechanism (4) is arranged at a discharge hole (301) of the forming ring (3).

2. A calender granulator as defined in claim 1, wherein: the cross section of the first extrusion groove (101) is U-shaped, and the cross section of the second extrusion groove (201) is of a triangular structure.

3. A calender granulator as defined in claim 1, wherein: the first extrusion roller (1) and the second extrusion roller (2) are both of heatable structures.

4. A calender granulator as defined in claim 1, wherein: the cutter mechanism (4) comprises a cutter frame (401) and a blade (402), the blade (402) is arranged on the cutter frame (401), and the blade (402) is driven to rotate by a blade driving mechanism; one end of the tool rest (401) is connected with the frame (10) and can rotate around the connecting part of the tool rest, and a limiting mechanism used for limiting the rotation angle of the tool rest (401) is further arranged on the frame (10).

5. The calender granulator of claim 4, wherein: a tension spring (403) is also arranged on the tool rest (401) and connected with the frame (10).

6. A calender granulator according to claim 4 or 5, characterized in that: the distance between the blade (402) of the cutter mechanism (4) and the end surface of the forming ring (3) is 1-3 mm.

7. A calender granulator according to claim 4 or 5, characterized in that: guide chutes (5) are arranged below each cutter mechanism (4), the discharge port of one guide chute (5) is connected to the conveying belt (11) through a vibration guide chute (6), and the discharge port of the other guide chute (5) is directly connected to the conveying belt (11).

8. A calender granulator as defined in claim 1, wherein: the second extrusion roller (2) is arranged on a second bearing seat (7), and the second bearing seat (7) is a movable mechanism.

9. A calender granulator according to claim 8, characterized in that: a driving mechanism (8) is arranged on the rack (10), the driving mechanism (8) is connected with the second bearing seat (7), and the second bearing seat (7) is driven to translate along the rack (10).

10. A calender granulator according to claim 9, characterized in that: and a guide roller (701) is arranged between the bottom of the second bearing seat (7) and the rack (10), and a displacement sensor (9) is arranged on the second bearing seat (7).