CN108381805B - Doubling rubber mixing machine - Google Patents
Doubling rubber mixing machine Download PDFInfo
- Publication number
- CN108381805B CN108381805B CN201810028025.0A CN201810028025A CN108381805B CN 108381805 B CN108381805 B CN 108381805B CN 201810028025 A CN201810028025 A CN 201810028025A CN 108381805 B CN108381805 B CN 108381805B
- Authority
- CN
- China
- Prior art keywords
- rubber mixing
- shearing
- rollers
- doubling
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010074 rubber mixing Methods 0.000 title claims abstract description 79
- 238000010008 shearing Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000000498 cooling water Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005096 rolling process Methods 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000004898 kneading Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/54—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with a single roller co-operating with a stationary member other than the casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a doubling rubber mixing machine, which comprises an open supporting seat and a pair of rollers arranged in the supporting seat, wherein the pair of rollers comprises two rubber mixing rollers which are arranged in parallel and are respectively connected with a power mechanism, the outer sides of the two ends of the pair of rollers are provided with feeding baffles, a shearing doubling mechanism is arranged below the pair of rollers, the shearing doubling mechanism comprises a shearing seat with two symmetrical groove surfaces at the upper end and baffle plates at the two ends of the shearing seat, the groove surfaces are matched with the outer contour of the rubber mixing rollers and have radian not more than pi, the two groove surfaces are respectively arranged opposite to the two rubber mixing rollers up and down, the middle part of the upper end of the shearing seat is provided with a connecting plane for the two groove surfaces, and the surface of the groove surface is provided with a bulge or a groove; the rubber mixing machine adopts an open mill mode, and the purposes of obviously improving the rubber mixing effect in a short time are finally realized through rolling and rubbing of a rubber mixing roller, shearing of the upper corner of a shearing seat, rolling and rubbing of the rubber mixing roller and a groove surface and shearing and rubbing of a bulge or a groove on rubber materials.
Description
Technical Field
The invention belongs to the technical field of rubber mixing, and particularly relates to a doubling rubber mixing machine.
Background
The conventional rubber mixing machine comprises an internal mixer and an open mill, rubber is mixed by pressurizing and stirring the rubber in the internal mixer through a closed space, the rubber mixing period is short, the efficiency is high, a good rubber mixing effect can be realized in a short time, but the temperature is high, a special cooling system is required to be arranged, and the rubber mixing is not suitable for long time; the open mill is in an open mode, the temperature of the open mill is relatively low, the temperature is not fast, the rubber can be repeatedly mixed, the mixing effect can exceed the level of the internal mixer, but the required period is long, and the mixing effect in a short time is poor. In summary, the existing different rubber mixing modes have respective defects, and the existing rubber mixing modes need to be improved.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides a doubling rubber mixing machine which adopts an open rubber mixing mode, and is matched with a rubber mixing roller through a shearing seat below the pair roller, and rubber materials can realize better rubber mixing effect in a short time after repeated extrusion and shearing.
The specific technical scheme of the invention is as follows:
the utility model provides a multiplication rubber mixing machine, includes open supporting seat and sets up the pair roller in the supporting seat, and the pair roller includes parallel arrangement and is connected with power unit's two rollers of mixing rubber respectively, and the supporting seat is provided with the feeding baffle in the pair roller both ends outside, and the key point is, pair roller below be provided with shearing multiplication mechanism, shearing multiplication mechanism is including the shearing seat that the upper end is provided with two symmetrical recess faces and the striker plate at shearing seat both ends, recess face and mixing rubber roller outline identical and radian are not more than pi, two recess faces set up relatively about two rollers respectively, shearing seat upper end middle part is provided with the connection plane that is used for two recess faces, recess face surface is provided with arch or slot.
The maximum drop between the convex or groove and the groove surface is 0.08-0.2mm.
The distance between the two rubber mixing rollers is 0.1-4mm, and the distance between the groove surface and the corresponding rubber mixing roller is 0.1-4mm.
The radian of the groove surface is pi/2.
The bottom of the shearing seat is provided with a lifting mechanism and an axial displacement mechanism.
The protrusions or grooves are arranged in parallel along the rotation direction of the rubber mixing roller, and each protrusion or groove is arranged along the axial direction of the rubber mixing roller.
The bulges or the grooves are in a grid shape which is uniformly arranged.
The rotation speed ratio of the two rubber mixing rollers formed by the respective power mechanisms is 1: (1.15-2.5).
The shearing seat in be provided with water cooling system, water cooling system includes a set of cooling water through-hole that sets up along the axial, the cooling water through-hole is connected with cooling water circulation equipment.
The beneficial effects of the invention are as follows: according to the invention, a shearing seat is added on the basis of the rubber mixing form of the open mill, and the two rubber mixing rollers not only squeeze rubber materials, but also form downward feeding power;
the groove surface on the shearing seat and the corner of the connecting plane form shearing edges of rubber, the two rubber mixing rollers shear the shearing edges on two sides in the process of conveying rubber downwards, and rubber is rolled between the outer surface of the rubber mixing rollers and the groove surface; meanwhile, the groove surface is provided with the bulge or the groove, the rubber material is sheared and rubbed when reaching the bulge or the groove position, the rubber material is repeatedly sheared and rubbed when passing through the whole groove surface, the rubber material achieves the effect of doubling rubber mixing, and the better rubber mixing effect can be achieved in a short time.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a left side view of the pair of rollers and shear block of fig. 1.
Fig. 3 is a schematic view of the structure of the shear block in example 1.
Fig. 4 is a schematic diagram showing the assembly structure of the counter roller and the shear block in example 2.
Fig. 5 is a schematic view of the structure of the shear block in fig. 4.
Fig. 6 is a schematic diagram showing the assembly structure of the counter roller and the shear block in example 3.
Fig. 7 is a schematic view of the structure of the shear block in fig. 6.
In the drawing, 1, a supporting seat, 2, a rubber mixing roller, 3, a feeding baffle, 4, a shearing seat, 5, a groove surface, 501, a bulge, 502, a groove, 6, a baffle plate, 7, a connecting plane, 8, a cooling water channel, 9, a fixing seat, 10, a screw rod sleeve, 11 and a screw rod.
Detailed Description
The invention relates to a doubling rubber mixing machine, which comprises an open supporting seat 1 and a pair of rollers arranged in the supporting seat 1, wherein the pair of rollers comprises two rubber mixing rollers 2 which are arranged in parallel and are respectively connected with a power mechanism, a feeding baffle 3 is arranged on the outer sides of two ends of the pair of rollers, a shearing multiplication mechanism is arranged below the pair of rollers, the shearing multiplication mechanism comprises a shearing seat 4 with two symmetrical groove surfaces 5 at the upper end and baffle plates 6 at the two ends of the shearing seat 4, the groove surfaces 5 are matched with the outer contours of the rubber mixing rollers 2 and have radians not larger than pi, the two groove surfaces 5 are respectively arranged opposite to the two rubber mixing rollers 2 up and down, a connecting plane 7 for the two groove surfaces 5 is arranged in the middle of the upper end of the shearing seat 4, and a bulge 501 or a groove 502 is arranged on the surface of the groove surface 5.
In example 1, as shown in fig. 1 to 3, two rubber mixing rolls 2 are respectively connected with a driving motor, and the rotation speed ratio is 1:2, rubber materials are put in from the upper part of the pair of rollers, and are fed to a gap position between the two rubber mixing rollers 2 by the aid of the feeding baffle 3, the rubber mixing rollers 2 with different rotation speeds can realize extrusion and rolling of the rubber materials, kneading of the rubber materials can be realized, and meanwhile, the two rubber mixing rollers 2 also form feeding power for conveying the rubber materials downwards;
the two groove surfaces 5 at the upper end of the shearing seat 4 and the rubber mixing rollers 2 are concentric arc surfaces, a connecting plane 7 between the two groove surfaces is positioned below a gap between the two rubber mixing rollers 2, the distance between the two rubber mixing rollers 2 is 2mm, the distance between the groove surfaces 5 and the corresponding rubber mixing rollers 2 is 2mm, the radian of the groove surfaces 5 is pi/2, and 1/4 outer circumferential surface of the corresponding rubber mixing rollers 2 is coated; based on the above structure, after the rubber is conveyed downwards from the gap position between the two rubber mixing rollers 2, the rubber passes through the corner between the connecting plane 7 and the groove surface 5, the corner forms a shearing action on the rubber, then the rubber enters into the gap between the rubber mixing rollers 2 and the groove surface 5, and the rubber is rolled and rubbed because the rubber mixing rollers 2 rotate and the groove surface 5 is static;
in order to facilitate the position adjustment, maintenance and replacement of the shearing seat 4, the bottom of the shearing seat 4 is sequentially provided with an axial displacement mechanism and a lifting mechanism, the axial displacement mechanism comprises a fixed seat 9 below the shearing seat 4, the fixed seat 9 is installed in the supporting seat 1 by means of the lifting mechanism, a sliding mechanism in the form of a dovetail groove is arranged between the upper end surface of the fixed seat 9 and the lower end surface of the shearing seat, and the sliding mechanism is also provided with a jacking bolt for locking and limiting; the lifting mechanism comprises a screw rod 11 on the supporting seat 1 and screw rod sleeves 10 on two sides of the fixed seat, when the screw rod 11 is driven to rotate, the screw rod sleeves 10 drive the fixed seat 9 to lift and move, the size of a gap can be accurately controlled by adopting a matched lifting mode of the screw rod 11 and the screw rod sleeves 10, and the rubber mixing machine with different gap requirements can be adapted;
in order to further improve the rubber mixing effect of the rubber material, the protrusions 501 are uniformly arranged on the groove surface 5, the shapes of the protrusions 501 are bar-shaped protrusions, the arrangement trend of the bar-shaped protrusions is not parallel to the rotation direction of the rubber mixing roller 2, the protrusions can be axially arranged or obliquely arranged, the protrusions 501 are axially arranged, the cross section of each protrusion 501 is arc-shaped, and the maximum drop height between each protrusion and the groove surface 5 is 0.1mm; based on the structure, rubber material can pass through the bulge 501 in the rolling and rubbing feeding process between the rubber mixing roller 2 and the groove surface 5, the strip-shaped bulge forms a shearing and extrusion effect on the rubber material, and all strip-shaped bulges on the whole groove surface 5 form repeated shearing and extrusion on the rubber material, so that the rubber mixing effect of the rubber material is remarkably improved.
In order to avoid the temperature rising phenomenon in the rubber mixing process, the rubber cannot be kept at a constant temperature for rubber mixing, an axial cooling water channel 8 is uniformly arranged in a shearing seat, the cooling water channel 8 is connected with a cooling water circulation device, the cooling water circulation device comprises a cooling water supply device and a hot water recovery cooling device which are connected, cooling water is supplied to the cooling water channel 8 through the cooling water supply device, heat generated during rubber mixing is carried away through a water band after passing through the cooling water channel 8, and then the heat is discharged from the other end to the hot water recovery cooling device, and the heat is returned to the cooling water supply device for ready use after cooling treatment.
In example 2, as shown in fig. 4 and 5, as another embodiment of example 1, as shown in fig. 3, the concave surface 5 is provided with the protrusions 501, the protrusions 501 are arranged in a grid shape, the cross section of each protrusion 501 is arc-shaped, the maximum height drop is 0.1mm, the grid-shaped protrusions 501 form kneading, rolling and shearing on rubber materials under the rotation of the rubber mixing roller 2, and the direction of the acting force is repeatedly changed under the action of the grid-shaped protrusions 501, so that the rubber mixing effect is more uniform and thorough;
in example 3, as shown in fig. 6 and fig. 7, as another embodiment of example 1, grooves 502 are provided on a groove surface 5, the cross section of each groove 502 is arc-shaped, the maximum depth is 0.1mm, the grooves 502 are arranged in an inclined manner, the edges formed on the groove surface 5 by the grooves 502 have shearing action on rubber materials, as shown in fig. 4, the middle of the groove surface 5 is used as a symmetry axis, inclined grooves 502 are symmetrically provided on two sides, the grooves 502 are gradually inclined from top to bottom towards the middle, and rubber materials are not easy to accumulate on two sides under the blocking action of two side baffle plates 6 and under the action of the inclined grooves 502, but gather towards the middle and pass through repeated shearing, kneading and rolling of the grooves 502, so that a rubber refining material with better rubber refining effect is finally formed.
The rubber mixing machine adopts a rubber mixing mode of an open mill, has good heat dissipation effect, realizes doubling rubber mixing through rolling and rubbing of two rubber mixing rollers 2, shearing of a connecting plane 7 in a shearing seat 4 and a corner of a groove surface 5, rolling and rubbing of the rubber mixing rollers and the groove surface 5, and shearing and rubbing of the rubber mixing rollers 2 and the bulges 501 or grooves 502, realizes doubling rubber mixing through repeated rolling, rubbing and shearing in a short time, achieves the rubber mixing effect of the internal mixer in a short time, and remarkably improves the rubber mixing efficiency under low cost and normal pressure.
Claims (7)
1. The utility model provides a doubling rubber mixing machine, includes open supporting seat (1) and sets up the pair roller in supporting seat (1), and pair roller includes parallel arrangement and is connected with power unit's two rubber mixing rollers (2) respectively, and supporting seat (1) are provided with feeding baffle (3) in pair roller both ends outside, its characterized in that: the utility model provides a pair of roller below be provided with shearing multiplication mechanism, shearing multiplication mechanism is including shearing seat (4) and striker plate (6) at shearing seat (4) both ends that the upper end was provided with two symmetry recess faces (5), recess face (5) coincide and the radian is not more than pi with rubber mixing roller (2) outline, two recess faces (5) are provided with respectively with two rubber mixing roller (2) upper and lower relative settings, shearing seat (4) upper end middle part is provided with connection plane (7) that are used for two recess faces (5), recess face (5) surface is provided with arch (501) or slot (502), arch (501) or slot (502) be a set of along rubber mixing roller (2) direction of rotation parallel arrangement, every arch (501) or slot (502) all set up along rubber mixing roller (2) axial direction, shearing seat (4) bottom be provided with elevating system and axial displacement mechanism.
2. The doubling mill of claim 1, wherein: the maximum drop between the protrusion (501) or the groove (502) and the groove surface (5) is 0.08-0.2mm.
3. The doubling mill of claim 1, wherein: the distance between the two rubber mixing rollers (2) is 0.1-4mm, and the distance between the groove surface (5) and the corresponding rubber mixing roller (2) is 0.1-4mm.
4. The doubling mill of claim 1, wherein: the radian of the groove surface (5) is pi/2.
5. The doubling mill of claim 1, wherein: the bulges (501) or the grooves (502) are uniformly arranged in a grid shape.
6. The doubling mill of claim 1, wherein: the rotation speed ratio of the two rubber mixing rollers (2) formed by the respective power mechanisms is 1: (1.15-2.5).
7. The doubling mill of claim 1, wherein: the shearing seat (4) is internally provided with a water cooling system, the water cooling system comprises a group of cooling water through holes (8) which are axially arranged, and the cooling water through holes (8) are connected with cooling water circulation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028025.0A CN108381805B (en) | 2018-01-11 | 2018-01-11 | Doubling rubber mixing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028025.0A CN108381805B (en) | 2018-01-11 | 2018-01-11 | Doubling rubber mixing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108381805A CN108381805A (en) | 2018-08-10 |
| CN108381805B true CN108381805B (en) | 2024-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810028025.0A Active CN108381805B (en) | 2018-01-11 | 2018-01-11 | Doubling rubber mixing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108381805B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274410B (en) * | 2021-12-29 | 2024-04-30 | 常丰线缆有限公司 | High-speed plastic extruder for cable preparation |
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