CN216609649U - Millstone type continuous refiner - Google Patents

Abstract

The utility model provides a millstone type continuous refiner, which comprises a bracket and a plurality of groups of millstone refining mechanisms which are fixedly arranged on the bracket from top to bottom in sequence; the grinding disc refining mechanism is arranged below the grinding disc refining mechanism, a feeding hole of the grinding disc refining mechanism is vertically aligned with a discharging hole of the grinding disc refining mechanism above the feeding hole, a feeding hole of the grinding disc refining mechanism at the top is used for adding materials, and a discharging hole of the grinding disc refining mechanism at the bottom is used for outputting finished products; the millstone gaps of the millstone refining mechanisms of all groups of millstone refining mechanisms are sequentially increased from top to bottom. The millstone type continuous refiner provided by the utility model can directly produce strip-shaped regenerated rubber finished products, and an additional material transfer device is not required to be additionally arranged between the millstone refining mechanisms, so that the structure of the whole refiner can be simplified, the floor area of equipment is reduced, and the cost of the equipment is reduced.

Description

Millstone type continuous refiner

Technical Field

The utility model belongs to the technical field of rubber refiners, and particularly relates to a millstone type continuous refiner.

Background

At present, a rubber refiner mainly has two structural forms of a roller rolling shearing type and a millstone rolling shearing type, and as the rubber cannot reach the finished product index of the regenerated rubber through one-time extrusion shearing in the refiner, materials are usually required to be repeatedly added into the refiner for mixing and forming the regenerated rubber in a sheet, a roll or a strip shape. For raising the efficiency in process of production, adopt the mode that a plurality of refiner levels were arranged in series usually at present to make the refiner discharge up to standard reclaimed rubber finished product that is located rearmost, this kind of production mode is not only big to the requirement of production site area, moreover because need set up corresponding feeding device (usually for the lifting machine, promote the last refiner exhaust material to the feed inlet of next refiner) between each refiner, consequently, the cost of whole equipment line is higher.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a millstone type continuous refiner, and aims to solve the problems of large occupied area and high cost of the current continuous production line of the refiner.

In order to achieve the purpose, the utility model adopts the technical scheme that: the millstone type continuous refiner comprises a bracket and a plurality of groups of millstone refining mechanisms which are fixedly arranged on the bracket from top to bottom in sequence; the grinding disc refining mechanism is arranged below the grinding disc refining mechanism, a feeding hole of the grinding disc refining mechanism is vertically aligned with a discharging hole of the grinding disc refining mechanism above the feeding hole, a feeding hole of the grinding disc refining mechanism at the top is used for adding materials, and a discharging hole of the grinding disc refining mechanism at the bottom is used for outputting finished products; the millstone gaps of the millstone refining mechanisms of all groups of millstone refining mechanisms are sequentially increased from top to bottom.

In one possible implementation mode, the grinding disc refining mechanisms are provided with three groups which are sequentially defined as a first refining mechanism, a second refining mechanism and a third refining mechanism from top to bottom; the first refining mechanism and the third refining mechanism are consistent in head-to-tail direction, and the second refining mechanism and the first refining mechanism are opposite in head-to-tail direction.

In some embodiments, the millstone refining mechanism comprises a screw feeder, a fixed seat, and a power mechanism; wherein, the screw feeder is horizontally fixed on the bracket and is provided with a feed inlet, and one end of the screw feeder, which is far away from the feed inlet, is fixedly connected with a fixed millstone; the fixed seat is arranged on the bracket, a rotating shaft is horizontally and rotatably connected to the fixed seat, and a movable grinding disc is fixedly connected to one end, facing the fixed grinding disc, of the rotating shaft; the power mechanism is arranged on the bracket, and the output end of the power mechanism is respectively connected with a screw shaft and a rotating shaft of the screw feeder; the movable grinding disc and the fixed grinding disc are horizontally aligned, a grinding disc gap used for matching grinding and discharging materials is arranged between the movable grinding disc and the fixed grinding disc, and a charging barrel of the screw feeder is communicated with the grinding disc gap.

Exemplarily, the power mechanism comprises a first rotary power source and a second rotary power source which are arranged on the bracket, a third chain wheel sleeved on the screw shaft of the first refining mechanism, a fourth chain wheel sleeved on the rotating shaft of the first refining mechanism, a first double-row chain wheel sleeved on the rotating shaft of the second refining mechanism, and a second double-row chain wheel sleeved on the screw shaft of the second refining mechanism; wherein, the output shaft of the first rotary power source is butted with the screw shaft of the third refining mechanism, and a first chain wheel is sleeved on the output shaft; an output shaft of the second rotary power source is butted with a rotating shaft of the third refining mechanism, and a second chain wheel is sleeved on the output shaft; two rows of gear teeth of the first double-row chain wheel are respectively connected with the first chain wheel and the third chain wheel through two first chains; two rows of gear teeth of the second double-row chain wheel are respectively connected with the second chain wheel and the fourth chain wheel through two second chains.

In some embodiments, a connecting disc is arranged at one end of the rotating shaft facing the fixed grinding disc, the connecting disc is connected with the movable grinding disc through an adjustable fastening assembly, and the adjustable fastening assembly is used for adjusting the grinding disc gap.

In the embodiment, the adjustable fastening assembly comprises a plurality of bolts and a plurality of jackscrews which are distributed at equal intervals along the circumferential direction of the connecting disc; wherein, a plurality of bolts respectively pass through the connecting disc and are screwed into the movable grinding disc; a plurality of jackscrews and each bolt are distributed in a cross mode, and each jackscrew is connected with the connecting disc in a screwing mode and penetrates through the connecting disc to be abutted against the movable grinding disc.

In some embodiments, a flange is sleeved on one end of the charging barrel, which is far away from the feeding hole, and the fixed grinding disc is fixedly connected with the flange.

In this embodiment, the disk surface of the flange is provided with an annular groove, and the fixed disk is provided with a convex ring which is embedded in the annular groove.

The millstone type continuous refiner provided by the utility model has the beneficial effects that: compared with the prior art, the millstone type continuous refiner has the advantages that the plurality of groups of millstone refining mechanisms are fixedly arranged on the bracket in an up-down stacking arrangement mode, so that the height space can be reasonably utilized, and the occupied area of the ground is reduced; because the feed inlet of the lower millstone refining mechanism is vertically aligned with the discharge outlet of the upper millstone refining mechanism, after the feed inlet of the uppermost millstone refining mechanism is added with materials, the materials can be fully rolled and sheared into small particles and discharged from the discharge outlet of the lower millstone refining mechanism due to small millstone clearance, and the small particles directly fall into the feed inlet of the lower middle millstone refining mechanism, and are rolled, sheared and kneaded by the relatively large millstone clearance of the middle millstone refining mechanism to form large particles or segments, and the discharged small particles directly fall into the lowermost millstone refining mechanism, and are rolled, sheared and kneaded again in the lowermost millstone refining mechanism with larger millstone clearance to form a final strip-shaped regenerated rubber finished product, and an additional material transfer device is not required to be additionally arranged among the millstone refining mechanisms, therefore, the whole machine structure can be simplified, and the equipment cost is reduced.

Drawings

FIG. 1 is a first schematic structural diagram of a millstone type continuous refiner provided by an embodiment of the utility model;

FIG. 2 is a schematic structural diagram II of a millstone type continuous refiner provided by the embodiment of the utility model;

FIG. 3 is a schematic structural view of a disc refiner mechanism used in an embodiment of the utility model;

fig. 4 is a partially enlarged structural view of a portion a in fig. 3.

In the figure: 10. a support; 20. a millstone refining mechanism; 20a, a first refining mechanism; 20b, a second refining mechanism; 20c, a third refining mechanism; 200. the gap of the grinding disc; 201. a feed inlet; 202. a discharge port; 21. a screw feeder; 210. a fixed grinding disc; 2101. a convex ring; 211. a charging barrel; 2111. a flange plate; 2112. a ring groove; 212. a screw shaft; 22. a fixed seat; 220. a movable grinding disc; 221. a rotating shaft; 2211. a connecting disc; 222. an adjustable fastening assembly; 2221. a bolt; 2222. carrying out top thread; 23. a power mechanism; 231. a first rotary power source; 2311. a first sprocket; 232. a second rotary power source; 2321. a second sprocket; 233. a third sprocket; 234. a fourth sprocket; 235. a first double sprocket; 2351. a first chain; 236. a second double sprocket; 2361. and a second chain.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 3 together, a description will now be given of a millstone type continuous refiner according to the present invention. The millstone type continuous refiner comprises a bracket 10 and a plurality of groups of millstone refining mechanisms 20 which are fixedly arranged on the bracket 10 from top to bottom in sequence; wherein, the feed inlet 201 of the lower millstone refining mechanism 20 is vertically aligned with the discharge outlet 202 of the upper millstone refining mechanism 20, the feed inlet 201 of the uppermost millstone refining mechanism 20 is used for adding materials, and the discharge outlet 202 of the lowermost millstone refining mechanism 20 is used for outputting finished products; the disc gap 200 of each group of disc refiner 20 increases from top to bottom.

The operating principle of the millstone type continuous refiner provided by the embodiment is as follows: the finished product regenerated rubber is usually in a sheet shape, a roll shape or a strip shape, and full extrusion and shearing are required before the product is molded, so that molecular chains and cross-linking points in the rubber are broken, and the parameter index requirement of the regenerated rubber is met, the smaller the millstone gap 200 of the millstone refiner is, the larger the shearing force is, the better the shearing effect is, and the finer the discharging shape is, so that the parameter index of the regenerated rubber can be met, but the requirement of the finished product shape of the regenerated rubber cannot be met, the larger the millstone gap 200 is, the smaller the shearing force is, but the kneading effect is improved, so that a strip material can be formed (the smaller the palm gap is when dough is kneaded by hands, the finer the dough is, and the thicker the noodle can be formed after the palm gap is increased), and the strip-shaped finished product regenerated rubber is obtained.

Compared with the prior art, the millstone type continuous refiner provided by the embodiment has the advantages that the plurality of groups of millstone refining mechanisms 20 are fixedly arranged on the bracket 10 in an up-down stacking arrangement mode, so that the height space can be reasonably utilized, and the occupied area of the ground is reduced; because the feed inlet 201 of the lower millstone refining mechanism 20 is vertically aligned with the discharge outlet 202 of the upper millstone refining mechanism 20, after the feed inlet 201 of the uppermost millstone refining mechanism 20 is added with materials, because the millstone gap 200 is small, the materials can be fully rolled, sheared, formed into small particles and discharged from the discharge outlet 202, and directly fall into the feed inlet 201 of the middle millstone refining mechanism 20 below, and the rolling, shearing and kneading action on the materials through the relatively larger millstone gap 200 of the middle millstone refining mechanism 20 is formed into larger particles or segments, after being discharged, the materials directly fall into the lowermost millstone refining mechanism 20, and are rolled, sheared and kneaded again in the lowermost millstone refining mechanism 20 with the larger millstone gap 200 to form a final strip-shaped regenerated rubber finished product, no additional material transfer device is required to be arranged between the millstone refining mechanisms 20, therefore, the whole machine structure can be simplified, and the equipment cost is reduced.

In some embodiments, referring to fig. 1 and 2, the disc refiner mechanism 20 has three sets, defined sequentially from top to bottom as a first refiner mechanism 20a, a second refiner mechanism 20b, and a third refiner mechanism 20 c; the first refining mechanism 20a and the third refining mechanism 20c have the same head-to-tail direction, and the second refining mechanism 20b has the opposite head-to-tail direction to the first refining mechanism 20 a. That is to say, three sets of grinding disc refining mechanisms 20 are distributed in an S-shaped manner, it should be understood that each set of grinding disc refining mechanism 20 is equivalent to a conventional grinding disc refiner, and the conventional grinding disc refiners are all arranged in a horizontal structure with one end feeding and the other end discharging, so that the three sets of grinding disc refining mechanisms 20 distributed in an S-shaped manner are adopted, the overall length and size of the equipment can be reduced, and the occupied area can be reduced.

As an embodiment of the grinding disc refining mechanism 20, please refer to fig. 1 and 3, or fig. 2 and 3, the grinding disc refining mechanism 20 includes a screw feeder 21, a fixing seat 22, and a power mechanism 23; wherein, the screw feeder 21 is horizontally fixed on the bracket 10 and is provided with a feed port 201, and one end of the screw feeder 21 far away from the feed port 201 is fixedly connected with a fixed grinding disc 210; the fixed seat 22 is arranged on the bracket 10, the fixed seat 22 is horizontally and rotatably connected with a rotating shaft 221, and one end of the rotating shaft 221 facing the fixed grinding disc 210 is fixedly connected with a movable grinding disc 220; the power mechanism 23 is arranged on the bracket 10, and the output end is respectively connected with the screw shaft 212 and the rotating shaft 221 of the screw feeder 21; the movable grinding disc 220 and the fixed grinding disc 210 are horizontally aligned, a grinding disc gap 200 is arranged between the movable grinding disc and the fixed grinding disc 210, the grinding disc gap 200 is used for matching grinding and discharging materials, and a cylinder 211 of the screw feeder 21 is communicated with the grinding disc gap 200. After the material enters the material barrel 211 from the material inlet 201, the material is forcibly squeezed into the gap between the movable grinding disc 220 and the fixed grinding disc 210 under the screw extrusion action of the screw shaft 212, the movable grinding disc 220 rotates relative to the fixed grinding disc 210, so that the material is repeatedly squeezed, sheared and kneaded in the grinding disc gap 200 and finally discharged from the peripheries of the movable grinding disc 220 and the fixed grinding disc 210, it should be noted that the power mechanism 23 may be shared by three groups of grinding disc refining mechanisms 20 (as shown in fig. 2), or may be individually arranged by each group of grinding disc refining mechanisms 20 (as shown in fig. 1).

Specifically, when the three groups of grinding disc refining mechanisms 20 share one power mechanism 23, please refer to fig. 2, the power mechanism 23 includes a first rotating power source 231 and a second rotating power source 232 disposed on the bracket 10, a third chain wheel 233 sleeved on the screw shaft 212 of the first refining mechanism 20a, a fourth chain wheel 234 sleeved on the rotating shaft 221 of the first refining mechanism 20a, a first double-row chain wheel 235 sleeved on the rotating shaft 221 of the second refining mechanism 20b, and a second double-row chain wheel 236 sleeved on the screw shaft 212 of the second refining mechanism 20 b; wherein, the output shaft of the first rotary power source 231 is butted with the screw shaft 212 of the third refining mechanism 20c, and the output shaft is sleeved with a first chain wheel 2311; an output shaft of the second rotary power source 232 is butted with the rotating shaft 221 of the third refining mechanism 20c, and a second chain wheel 2321 is sleeved on the output shaft; the two rows of gear teeth of the first double-row chain wheel 235 are respectively connected with the first chain wheel 2311 and the third chain wheel 233 through two first chains 2351; the two rows of teeth of the second double-row sprocket 236 are connected to the second sprocket 2321 and the fourth sprocket 234 by two second chains 2361. First rotary power source 231 and second rotary power source 232 all can be gear motor or hydraulic motor, because the torque is great in the refiner working process, choose chain drive to avoid on the one hand skidding here for use, on the other hand lies in can providing sufficient transmission distance, adopt the mode of one set of power unit 23 of three group's mill refining mechanism 20 sharing here, can be in the simplification equipment structure, when reducing equipment volume, can also reduce the quantity of power source, thereby greatly reduced equipment overall cost.

In some possible implementations, referring to fig. 2 and fig. 3, an end of the rotating shaft 221 facing the fixed grinding disc 210 is provided with a connecting disc 2211, the connecting disc 2211 is connected with the movable grinding disc 220 through an adjustable fastening assembly 222, and the adjustable fastening assembly 222 is used for adjusting the grinding disc gap 200. Aiming at different material properties and requirements of regenerated rubber products, the gap between the movable grinding disc 220 and the connecting disc 2211 is adjusted through the adjustable fastener, so that the movable grinding disc 220 is far away from or close to the fixed grinding disc 210, the purpose of adjusting the grinding disc gap 200 is achieved, and the application range of the equipment is improved.

Specifically, the adjustable fastening assembly 222 is configured as shown in FIG. 3. The adjustable fastening assembly 222 comprises a plurality of bolts 2221 and a plurality of top threads 2222 which are distributed at equal intervals along the circumferential direction of the connecting disc 2211; wherein, a plurality of bolts 2221 respectively pass through the connecting disc 2211 and are screwed into the movable grinding disc 220; a plurality of top threads 2222 are distributed in a crossed manner with the bolts 2221, and the top threads 2222 are respectively screwed with the connecting disc 2211 and are abutted with the movable grinding disc 220 through the connecting disc 2211. When the grinding disc gap 200 needs to be increased, the movable grinding disc 220 can be far away from the fixed grinding disc 210 by screwing out the top screws 2222 (target length) and screwing in the bolts 2221, otherwise, the movable grinding disc 220 can be close to the fixed grinding disc 210 by screwing out the bolts 2221 (target length) and screwing in the top screws 2222, so that the grinding disc gap 200 is reduced, the structure is simple and stable, and the grinding disc gap 200 is convenient to adjust.

In some embodiments, referring to fig. 3 and fig. 4, a flange 2111 is sleeved on an end of the barrel 211 away from the feed port 201, and the fixed grinding disc 210 is fixedly connected with the flange 2111; the disc surface of the flange plate 2111 is provided with an annular groove 2112, the fixed abrasive disc 210 is provided with a convex ring 2101, and the convex ring 2101 is embedded in the annular groove 2112. The fixed grinding disc 210 is stably and reliably connected through the flange plate 2111, and a labyrinth type sealing structure is formed by embedding the convex ring 2101 into the ring groove 2112, so that materials are prevented from entering a gap between the fixed grinding disc 210 and the flange plate 2111 under the extrusion action.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A millstone type continuous refiner, characterized by comprising:

a support;

the grinding disc refining mechanisms are sequentially and fixedly arranged on the support from top to bottom, a feed port of the grinding disc refining mechanism positioned below is vertically aligned with a discharge port of the grinding disc refining mechanism positioned above, the feed port of the grinding disc refining mechanism positioned at the uppermost position is used for adding materials, and the discharge port of the grinding disc refining mechanism positioned at the lowermost position is used for outputting finished products;

wherein, the millstone gaps of the millstone refining mechanisms of each group are sequentially increased from top to bottom.

2. The refiner of claim 1, wherein the refiner has three groups, which are defined as a first refiner, a second refiner and a third refiner from top to bottom; the first refining mechanism and the third refining mechanism are consistent in head-to-tail direction, and the second refining mechanism is opposite to the first refining mechanism in head-to-tail direction.

3. The refiner of claim 2, wherein said disc refiner mechanism comprises:

the screw feeder is horizontally fixed on the bracket and is provided with the feed port, and one end of the screw feeder, which is far away from the feed port, is fixedly connected with a fixed grinding disc;

the fixed seat is arranged on the bracket, a rotating shaft is horizontally and rotatably connected to the fixed seat, and a movable grinding disc is fixedly connected to one end, facing the fixed grinding disc, of the rotating shaft;

the power mechanism is arranged on the bracket, and the output end of the power mechanism is respectively connected with the screw shaft of the screw feeder and the rotating shaft;

the movable grinding disc and the fixed grinding disc are horizontally aligned, a grinding disc gap used for matching grinding and discharging materials is formed between the movable grinding disc and the fixed grinding disc, and a charging barrel of the screw feeder is communicated with the grinding disc gap.

4. The refiner of claim 3 wherein said power mechanism comprises:

the first rotary power source is arranged on the bracket, an output shaft is butted with a screw shaft of the third refining mechanism, and a first chain wheel is sleeved on the output shaft;

the second rotary power source is arranged on the bracket, an output shaft is butted with a rotating shaft of the third refining mechanism, and a second chain wheel is sleeved on the output shaft;

the third chain wheel is sleeved on the screw shaft of the first refining mechanism;

the fourth chain wheel is sleeved on the rotating shaft of the first refining mechanism;

the first double-row chain wheel is sleeved on a rotating shaft of the second refining mechanism, and two rows of gear teeth are respectively connected with the first chain wheel and the third chain wheel through two first chains;

and the second double-row chain wheel is sleeved on a screw shaft of the second refining mechanism, and the two rows of gear teeth are respectively connected with the second chain wheel and the fourth chain wheel through two second chains.

5. The continuous refiner of claim 3, wherein a connecting disc is arranged at one end of the rotating shaft facing the fixed grinding disc, the connecting disc is connected with the movable grinding disc through an adjustable fastening assembly, and the adjustable fastening assembly is used for adjusting the grinding disc gap.

6. The refiner of claim 5 wherein said adjustable fastening assembly comprises:

the bolts are distributed at equal intervals along the circumferential direction of the connecting disc, penetrate through the connecting disc and are screwed into the movable grinding disc respectively;

and the jackscrews are distributed along the circumferential direction of the connecting disc at equal intervals and are distributed with the bolts in a cross way, and each jackscrew is respectively connected with the connecting disc in a screwing way and penetrates through the connecting disc to be abutted against the movable grinding disc.

7. The continuous refiner of claim 3, wherein a flange is sleeved on one end of the charging barrel away from the feeding hole, and the fixed grinding disc is fixedly connected with the flange.

8. The continuous refiner of claim 7, wherein the disc surface of the flange plate is provided with a ring groove, and the fixed disc is provided with a convex ring, and the convex ring is embedded in the ring groove.

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