CN201760977U

CN201760977U - Mixing device

Info

Publication number: CN201760977U
Application number: CN2010202957325U
Authority: CN
Inventors: 姬路淳一
Original assignee: Panasonic Electric Works Electronic Materials Shanghai Co Ltd
Current assignee: Panasonic Corp of China
Priority date: 2010-08-18
Filing date: 2010-08-18
Publication date: 2011-03-16
Anticipated expiration: 2020-08-18

Abstract

The utility model relates to a mixing device which comprises at least two rolls which are arranged in parallel. A space between the surfaces of the rolls forms a mixing space. A material charging port is arranged above the mixing space. The mixing device additionally comprises a cutting assembly which is used for cutting material layers formed on the rolls and a scraping assembly which is used for scraping the material layers from the rolls. The scraping assembly comprises a scraper and a lifting device which is connected with the scraper and can enable the scraper to be separated from or to be in contact with the rolls. The utility model overcomes the defects that the scraping efficiency of the existing mixing device is low, the quality of the scraper is apt to be deteriorated and the quality of the produced products is low, and provides the mixing device which can postpone the quality deterioration of the scraper, improve the scraping efficiency and improve the product quality. The mixing device is particularly suitable for mixing materials such as tires, rubber and plastics.

Description

A kind of kneading device

Technical field

The utility model relates to a kind of kneading device.Be specially a kind of roll kneading device.

Background technology

The roll kneading device is that tire, rubber and plastics are carried out mixing device commonly used, this kneading device adopts two rolls, mixing material is pushed, different mixing of materials is also formed together twist in the lip-deep material bed of roll, adopt cutting knife to be divided into a plurality of parts with material bed, adopt cutting blade that material bed surface from roll is scraped afterwards, send into pulverizer and pulverize.When roll rotated, the roll surface of cutting blade and roll is angled to be maintained static, and its point of a knife is pressed on the roll, the power between point of a knife and the roll can be decomposed into along roll radially power and along the tangential power of roll.The power tangential along roll scrapes material bed, makes between point of a knife and the roll along roll power radially to produce frictional force.Existing kneading device designs the angle of 2 on the point of a knife of cutting blade 6 and roll very little, as shown in Figure 1, reduces friction simultaneously so that increase tangential force as far as possible.The material bed direction of rotation along roll that has some fragmentations in the process of shaving enters the space between point of a knife and the roll.The point of a knife of cutting blade 6 contacts in the shaving position with roll 2, the point of a knife of cutting blade and very little by the angle α between the tangent line of shaving position, Figure 1 shows that the schematic diagram that cooperates of cutting blade 6 and roll 2, space between the two is very narrow and small, material bed chip extruding easily is deposited in this, not only increased the friction area between point of a knife and the roll, reduced the sharp performance of point of a knife, the material bed efficient of shaving also reduces simultaneously.In addition, the rotatablely moving of roll 2 makes roll 2 heating itself, and the friction when shaving is material bed between point of a knife and material bed and the roll 2 makes point of a knife and material bed heating, the point of a knife quality speed of worsening quickening of cutting blade 6.The also feasible simultaneously material bed easy generation thermmohardening that is deposited between cutting blade 6 and the roll 2, along with constantly carrying out of sclerosis, the hardening thing that volume is bigger can be sneaked in the product, reduces the quality of product.

The utility model content

The technical problem that the utility model solves is to overcome the low shortcoming of product quality that existing kneading device shaving efficient is low, the cutting blade quality worsens and produces easily, provides a kind of cutting blade quality that delays to worsen, improve the kneading device that shaving efficient is improved the quality of products simultaneously.

Kneading device described in the utility model, comprise at least two rolls that be arranged in parallel, space between the roll surface of roll forms mixing space, top, described mixing space is provided with the material input port, also comprise to be formed on the described roll the material bed cutting assembly that cuts and with the described material bed shaving assembly that scrapes down from described roll, described shaving assembly comprises cutting blade and the uplifting device that links to each other and make described cutting blade and described roll be separated or contact with described cutting blade.

Described uplifting device comprises lever that an end is connected with described cutting blade and the drive unit that is connected with the other end of lever.

Described drive unit is a cylinder, and the push rod of described cylinder is connected with the other end of described lever.

Described uplifting device comprises the eccentric part by driven by motor, and described eccentric part is connected with described cutting blade away from an end of its rotating shaft.

Kneading device described in the utility model is compared with prior art, has following beneficial effect:

(1) cutting blade can lift by uplifting device, prevents the fragment of the space deposit bed of material between cutting blade and the roll, thereby guarantees the sharp of cutting blade blade, and the quality that delays its blade worsens, and has improved the efficient of shaving simultaneously.Sneak into product after the material bed generation thermmohardening of also having avoided in addition piling up, thereby improved the quality of product.

(2) uplifting device adopts lever and cylinder, and perhaps motor and eccentric part are simple and reliable for structure.

Description of drawings

The fit structure schematic diagram of the cutting blade that Fig. 1 adopts for existing kneading device and the roll surface of roll;

Fig. 2 is the structural representation of kneading device of the present utility model.

Reference numeral:

Roll before the roll behind the 1-, 12-, the mixing space of 3-, 4-input port, 5-cutting assembly, 16-cutting blade, 7-lever, 8-push rod, 9-cylinder, 10-shaving assembly.

The specific embodiment

The described kneading device of the utility model embodiment is used for carrying out mixing to phenol resin composition.The structure of kneading device is as shown in Figure 2 in the present embodiment: comprise two rolls that be arranged in parallel, and promptly preceding roll 12 and back roll 1, the narrow slit between preceding roll 12 and the back roll 1 forms mixing space 3.Above described mixing space 3, establish the input port 4 in the mixing space 3 with the input that phenol resin composition is arranged, phenol resin composition after dropping into mixing space 3, by preceding roll 12 and back roll 1 extruding becoming flaky resin layer and along with the rotation of roll twist in before on the surface of roll 12.Kneading device also comprise to be formed on described before the cutting assembly 5 that cuts of resin bed on the roll 12 and described resin bed carried out the shaving assembly 10 of shaving, described shaving assembly 10 comprises cutting blade 16 and the uplifting device that links to each other and make described cutting blade 16 and described roll be separated or contact with described cutting blade 16.

Described uplifting device comprises lever 7 and drive unit, and the middle part of described lever 7 is fixed, and an end is connected with described cutting blade 16, and the other end is connected with described drive unit.In the present embodiment, described drive unit is a cylinder 9, and the push rod 8 of described cylinder 9 is connected with the other end of lever 7.When the push rod 8 of cylinder 9 stretches out, an end of lever 7 with the point of a knife of cutting blade 16 is pressed in before on the roll 12, the resin bed on the preceding roll 12 is scraped down.When entering the chip of resin bed between the blade of current roll 12 and cutting blade 16, manipulating cylinder 9, make the push rod 8 withdrawal cylinders 9 of cylinder 9, one end of lever 7 drives the top of cutting blade 16 in Fig. 2 and lifts, roll 12 before leaving, the resin chip before making between the blade of roll 12 and cutting blade 16 falls.Thereby the blade of assurance cutting blade 16 is sharp, and the quality that delays its blade worsens, and has improved the efficient of shaving simultaneously.Sneak into product after the material bed generation thermmohardening of also having avoided in addition piling up, thereby improved the quality of product.Manipulating cylinder 9 once more, and push rod 8 is stretched out, and resin bed scraped on the roll 12 before cutting blade 16 is pressed in again and get.Also can set the regular hour section by the control device that links to each other with cylinder 9, as 10 minutes, making the time period of cylinder 9 every these settings of process was auto-action, lifted cutting blade 16 and the action that will lift kept for 2 seconds.

Described in the above-described embodiments uplifting device also can adopt other drives structure, as eccentric part by driven by motor, described eccentric part is connected with described cutting blade 16 away from an end of its rotating shaft, under the situation that motor is not opened, resin bed scraped on the roll 12 before cutting blade 16 is pressed in and get.Open motor, the output shaft of motor drives the eccentric part rotation, lifts thereby drive cutting blade 16, and the resin chip before making between the blade of roll 12 and cutting blade 16 falls.Motor is quit work, on the roll 12, resin bed is carried out shaving before the blade of cutting blade 16 is pressed in again.

Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.

Claims

1. kneading device, comprise at least two rolls that be arranged in parallel, space between the roll surface of roll forms mixing space, top, described mixing space is provided with the material input port, also comprise to be formed on the described roll the material bed cutting assembly that cuts and with the described material bed shaving assembly that scrapes down from described roll, it is characterized in that: described shaving assembly comprises cutting blade and the uplifting device that links to each other and make described cutting blade and described roll be separated or contact with described cutting blade.

2. kneading device according to claim 1 is characterized in that: described uplifting device comprises lever that an end is connected with described cutting blade and the drive unit that is connected with the other end of lever.

3. kneading device according to claim 2 is characterized in that: described drive unit is a cylinder, and the push rod of described cylinder is connected with the other end of described lever.

4. kneading device according to claim 1 is characterized in that: described uplifting device comprises the eccentric part by driven by motor, and described eccentric part is connected with described cutting blade away from an end of its rotating shaft.