CN216760428U - Mixing roll - Google Patents

Abstract

The application provides a mixing roll, includes: the mixing device comprises a shell, a mixing chamber and a mixing chamber, wherein the shell is provided with the mixing chamber; a mixing screw rotatably mounted inside the mixing chamber; the first driving unit is arranged on the shell, connected with the mixing screw and used for driving the mixing screw to rotate; the cutting and feeding mechanism is arranged on the shell and used for supplying raw materials into the mixing cavity; and the auxiliary material conveying mechanism is arranged on the shell, is arranged at an interval with the cutting and feeding mechanism, and is used for supplying auxiliary materials into the mixing cavity. Raw materials and auxiliary materials are independently supplied to the mixing chamber through the cutting feeding mechanism and the auxiliary material conveying mechanism, so that the problem that the auxiliary materials are polluted due to manual feeding before mixing is avoided. Moreover, automatic feeding operation can be realized through the cutting feeding mechanism and the auxiliary material conveying mechanism, and compared with manual feeding, the automatic feeding device is high in efficiency.

Description

Mixing mill

Technical Field

The application belongs to the technical field of material mixing devices, and particularly relates to a mixing roll.

Background

The mixing roll is used for mixing the raw rubber and the auxiliary materials. Taking a silica gel material as an example, the silica gel raw material needs to be mixed with auxiliary materials such as color master batch, vulcanizing agent and the like and then refined into the mixing silica gel for hot press molding or injection molding.

At present, before a mixing roll is used for mixing, silica gel raw materials and auxiliary materials need to be respectively weighed and placed in a mixing cavity of the mixing roll. However, silica gel raw material and auxiliary material are usually weighed and fed manually, and the auxiliary material is easily polluted due to frequent manual contact with the silica gel raw material and the auxiliary material, and the feeding efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a mixing roll to solve artifical manual material loading to silica gel raw materials and auxiliary material that exists among the correlation technique, easily cause the auxiliary material to pollute, and the problem that material loading efficiency is low.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

provided is a mixing mill including:

the mixing device comprises a shell, a mixing chamber and a mixing chamber, wherein the shell is provided with the mixing chamber;

a kneading screw rotatably mounted inside the kneading chamber;

the first driving unit is arranged on the shell, connected with the mixing screw and used for driving the mixing screw to rotate;

the cutting and feeding mechanism is arranged on the shell and used for supplying raw materials into the mixing cavity;

and the auxiliary material conveying mechanism is arranged on the shell, is arranged at intervals with the cutting and feeding mechanism, and is used for supplying auxiliary materials into the mixing cavity.

In one embodiment, the cutting and feeding mechanism comprises a feeding bin mounted on the housing, a feeding screw rotatably mounted in the feeding bin, and a second driving unit for driving the feeding screw to rotate, wherein the second driving unit is mounted on the feeding bin and connected with the feeding screw, and a feeding channel communicated with the mixing chamber is formed in the feeding bin.

This structure, the pay-off screw rod is at the pivoted in-process, and the convex blade on its periphery cuts blocky raw materials to carry the raw materials after will cutting to the inside of mixing chamber from the pay-off passageway, at the in-process of carrying, thereby the pay-off screw rod stirs the raw materials and carries out preliminary mixing, and blocky raw materials is after preliminary mixing, and the raw materials of being convenient for continues mixing through the pay-off passageway in mixing chamber.

In one embodiment, the number of the feeding screws is two, the two feeding screws are installed in the feeding bin at intervals, one end of each feeding screw is connected with the second driving unit, and the other end of each feeding screw points to the feeding end of the feeding channel.

This structure sets up the quantity of pay-off screw rod into two, can improve the pay-off screw rod and cut, carry and preliminary mixing's efficiency to blocky raw materials.

In one embodiment, the diameter of each of the feed screws is gradually reduced toward the feed passage by the second drive unit, and the distance between the axes of the two feed screws is gradually reduced toward the feed passage by the second drive unit.

This structure can realize progressively cutting to cubic raw materials, simultaneously, can improve cutting feeding mechanism's commonality, can realize the cutting to bulky cubic raw materials and the cubic raw materials homoenergetic of little volume.

In one embodiment, the auxiliary material conveying mechanism comprises a hopper for containing the auxiliary material and a quantitative feeding assembly for conveying the auxiliary material in the hopper into the mixing chamber, and the hopper and the quantitative feeding assembly are respectively mounted on the shell.

This structure, auxiliary material conveying mechanism carry the auxiliary material in the hopper to mixing cavity through ration pay-off subassembly, do not need artifical manual to weigh the auxiliary material, avoid artifical manual material loading to cause the pollution to the auxiliary material, can improve the material loading efficiency of auxiliary material simultaneously.

In one embodiment, the quantitative feeding assembly comprises a cylinder body installed on the shell and communicated with the discharge end of the hopper, and a material pushing unit used for conveying the auxiliary materials in the cylinder body into the mixing chamber, the material pushing unit is installed on the shell, and the output end of the material pushing unit extends into the cylinder body.

By the aid of the structure, workers can control the material pushing unit to convey quantitative auxiliary materials into the mixing chamber, the auxiliary materials are prevented from being weighed before being fed at each time, and therefore the auxiliary materials are prevented from being polluted when being in contact with hands, air and the weighing tool.

In one embodiment, the pushing unit comprises a pushing screw rotatably mounted in the cylinder and a motor for driving the pushing screw to rotate, and the motor is mounted on the shell and connected with the pushing screw;

or the material pushing unit comprises a material pushing rod arranged in the cylinder body and an air cylinder/oil cylinder used for driving the material pushing rod to move in a reciprocating mode along the central axis of the cylinder body, and the air cylinder/oil cylinder is arranged on the shell and connected with the material pushing rod.

With the structure, the worker can control the material pushing unit to convey quantitative auxiliary materials into the mixing chamber by controlling the motor or the cylinder/oil cylinder to work.

In one embodiment, the metering assembly further comprises a check valve mounted on the discharge end of the barrel; and/or the presence of a gas in the gas,

and a sealing cover for sealing the hopper is arranged at the top of the hopper.

According to the structure, after the auxiliary material conveying mechanism conveys the auxiliary material with fixed weight or fixed volume into the mixing cavity, the check valve can cut off the communication state between the cylinder and the mixing cavity, so that the residual auxiliary material in the cylinder is prevented from contacting and reacting with the raw material in the mixing cavity; the closing cap can keep apart auxiliary material in the hopper with external environment, avoids the auxiliary material in the hopper to be polluted by the dirty in the external environment.

In one embodiment, the mixing screw comprises a feeding section and a mixing section, wherein a first spiral protrusion is arranged on the outer peripheral surface of the feeding section, a second spiral protrusion and a third spiral protrusion are respectively arranged on the outer peripheral surface of the mixing section, the spiral direction of the second spiral protrusion is opposite to that of the third spiral protrusion, and a peak is formed at the intersection position of the second spiral protrusion and the third spiral protrusion; the discharge end of the cutting and feeding mechanism is arranged right opposite to the feeding section, and the discharge end of the auxiliary material conveying mechanism is arranged right opposite to the mixing section.

According to the structure, on one hand, the feeding section feeds the raw materials into the mixing section, and on the other hand, the feeding section can further mix the raw materials preliminarily mixed by the cutting and feeding mechanism, so that the mixing time of the raw materials and each auxiliary material in the mixing section can be reduced, and the mixing efficiency can be improved conveniently; before the silica gel raw material reaches the peak from the feeding section, the pressure, the power and the temperature are gradually increased until the peak reaches the maximum value, so that the mixing efficiency is gradually improved.

In one embodiment, the bottom of the shell is provided with a discharge port communicated with the mixing chamber; and/or the presence of a gas in the gas,

the casing includes casing upper cover and casing lower cover of mutual lock, the casing upper cover with the connection can be dismantled to the casing lower cover.

With the structure, after the mixing machine is used for mixing, a mixed finished product can be discharged from the bottom of the shell; the casing detachable design is convenient for clear up the mixing cavity of casing inside after mixing.

The application provides a mixing roll's beneficial effect lies in: and a mixing screw is rotatably arranged in the shell, is driven to rotate by the first driving unit, and mixes and refines the raw materials and the auxiliary materials in the mixing cavity by the rotation of the mixing screw. Raw materials and auxiliary materials are independently supplied to the mixing chamber through the cutting feeding mechanism and the auxiliary material conveying mechanism, so that the problem that the auxiliary materials are polluted due to manual feeding before mixing is avoided. Moreover, automatic feeding operation can be realized through the cutting feeding mechanism and the auxiliary material conveying mechanism, and compared with manual feeding, the automatic feeding device is high in efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a first schematic structural diagram of a mixing roll provided in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic structural diagram of a second mixing roll according to an embodiment of the present disclosure;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

fig. 6 is a cross-sectional view at C-C in fig. 4.

Wherein, in the drawings, the reference numerals are mainly as follows:

1. a housing; 11. a discharge outlet;

2. a mixing screw; 21. a feeding section; 211. a first spiral protrusion; 22. a mixing section; 221. a second spiral protrusion; 222. a third spiral protrusion; 223. carrying out peak pressing;

3. a first drive unit; 31. a gear;

4. a cutting and feeding mechanism; 41. a feeding bin; 411. a feed channel; 42. a feed screw; 421. a convex edge;

5. an auxiliary material conveying mechanism; 51. a hopper; 52. a quantitative feeding component; 521. a barrel; 522. a material pushing unit.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application 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 present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1-3, a mixer according to an embodiment of the present application will now be described. The mixing mill comprises a shell 1, a mixing screw 2, a first driving unit 3, a cutting and feeding mechanism 4 and an auxiliary material conveying mechanism 5. Wherein, casing 1 is rectangular structure, is equipped with mixing cavity on the casing 1, and mixing screw 2 rotates to be installed in mixing cavity's inside. It is easy to understand that the mixing screw 2 can mix and refine the raw materials and the auxiliary materials in the mixing chamber during the rotation in the mixing chamber. Through setting up casing 1 can guarantee that the material is kept apart with external environment at the inside mixed in-process of mixing chamber, avoids the material to be polluted by impurity such as dust in the external environment.

Referring to fig. 1, a first driving unit 3 is installed on a housing 1 and connected to a kneading screw 2 for driving the kneading screw 2 to rotate. In one possible implementation, the mixing screw 2 protrudes from the housing 1 towards one end of the first drive unit 3, the first drive unit 3 comprising a motor and a reducer, wherein an output shaft of the motor and an input end of the reducer can be driven by a belt, and an output end of the reducer is connected with an end of the mixing screw 2. Fig. 1 shows that the number of the kneading screws 2 may be two, and the two kneading screws 2 are driven by gears 31 that mesh with each other. Specifically, one end of each kneading screw 2 facing the first drive unit 3 extends from the casing 1, and two gears 31 are fitted around the ends of the kneading screws 2 extending from the casing 1. Illustratively, each gear 31 may be an interference fit with the respective mixing screw 2 to ensure that the gears 31 rotate synchronously with the mixing screws 2. The first driving unit 3 is connected with one of the mixing screws 2, so that the first driving unit 3 can drive the two mixing screws 2 to synchronously rotate, and the raw materials and the auxiliary materials are mixed in the mixing chamber conveniently. Of course, in other embodiments, the two kneading screws 2 may be driven by driving members such as motors, respectively, and are not limited to these.

Referring to fig. 1, a cutting and feeding mechanism 4 is mounted on the housing 1 for supplying raw materials into the kneading chamber. The auxiliary material conveying mechanism 5 is arranged on the shell 1 and is arranged at an interval with the cutting and feeding mechanism 4 and is used for supplying auxiliary materials into the mixing cavity. It is easy to understand that the discharge ends of the cutting and feeding mechanism 4 and the auxiliary material conveying mechanism 5 are both communicated with the mixing cavity. Fig. 1 shows that the number of the auxiliary material conveying mechanisms 5 can be multiple, and each auxiliary material conveying mechanism 5 can supply different auxiliary materials to the mixing chamber, so that different auxiliary materials can be mixed and refined with the raw materials in the mixing chamber.

The application provides a mixing roll's beneficial effect lies in: a kneading screw 2 is rotatably mounted in the casing 1, the kneading screw 2 is driven to rotate by a first drive unit 3, and the raw material and the auxiliary material in the kneading chamber are mixed and refined by the rotation of the kneading screw 2. Raw materials and auxiliary materials are independently supplied into the mixing cavity through the cutting feeding mechanism 4 and the auxiliary material conveying mechanism 5, so that the problem that the auxiliary materials are polluted due to manual feeding before mixing is avoided. Moreover, automatic feeding operation can be realized through the cutting and feeding mechanism 4 and the auxiliary material conveying mechanism 5, and compared with manual feeding, the automatic feeding device is high in efficiency.

In one embodiment, referring to fig. 1, 4 and 5, as a specific embodiment of the mixing mill provided in the embodiment of the present application, the cutting and feeding mechanism 4 includes a charging bin 41 mounted on the housing 1, a feeding screw 42 rotatably mounted in the charging bin 41, and a second driving unit (not shown) for driving the feeding screw 42 to rotate. Wherein, the main body part of the feeding bin 41 can be a box structure with an opening at the top. The worker can put the lump material into the charging bin 41 through the opening of the charging bin 41, and the lump material in the charging bin 41 contacts the feeding screw 42 in the charging bin 41.

The second driving unit is installed on the feeding bin 41 and connected with the feeding screw 42, and the feeding bin 41 is provided with a feeding channel 411 communicated with the mixing chamber. For example, the second driving unit may include a stepping motor, an output shaft of the stepping motor is connected to an end of the feeding screw 42, and the number of rotations of the feeding screw 42 may be set by adjusting the stepping motor, so that quantitative conveying of the raw material is realized without manually weighing the raw material. In a possible implementation, a gear pair may be provided between the stepping motor and the feed screw 42, and the rotation speed ratio between the output shaft of the stepping motor and the feed screw 42 may be adjusted by the gear pair.

It should be noted that the outer circumferential surface of the feed screw 42 is provided with a convex blade 421 protruding outward, and the convex blade 421 is spirally arranged along the axis of the feed screw 42. In the rotating process of the feeding screw 42, the convex blade 421 on the outer peripheral surface cuts the blocky raw material, and conveys the cut raw material to the interior of the mixing chamber from the feeding channel 411, in the conveying process, the feeding screw 42 stirs the raw material so as to carry out preliminary mixing, and after the blocky raw material is preliminarily mixed, the raw material can conveniently pass through the feeding channel 411 and continue mixing in the mixing chamber.

In one embodiment, referring to fig. 1, 4 and 5, as a specific implementation of the mixing mill provided in the embodiments of the present application, the number of the feeding screws 42 is two, and the two feeding screws 42 are installed in the charging bin 41 at intervals. Illustratively, two feed screws 42 may be arranged side by side in a horizontal plane. One end of each feed screw 42 is connected to the second driving unit, and the other end of each feed screw 42 is directed to the feeding end of the feed channel 411. Illustratively, the second driving unit may include a synchronous belt, the two ends of the feeding screw 42 are respectively sleeved with a driven wheel, an output shaft of a motor of the second driving unit is sleeved with a driving wheel, and the synchronous belt may be respectively sleeved outside the driving wheel and the two driven wheels. Of course, the present embodiment is only exemplary here, and the second driving unit may also be connected to one end of each feeding screw 42 in other manners, for example, the second driving unit may be connected to each feeding screw 42 through a gear pair, which is not limited herein.

In this embodiment, the number of the feeding screws 42 is set to two, so that the efficiency of cutting, conveying and preliminary mixing the block raw material by the feeding screws 42 can be improved.

In an embodiment, referring to fig. 1, fig. 4 and fig. 5, as a specific implementation of the mixing mill provided in the embodiment of the present application, the diameter of each feeding screw 42 is gradually reduced from the second driving unit toward the feeding channel 411, and it is worth mentioning that the height of the convex edge 421 on the outer peripheral surface of each feeding screw 42 is gradually reduced from the second driving unit toward the feeding channel 411. The distance between the axes of the two feed screws 42 is gradually reduced toward the feed passage 411 by the second drive unit. Illustratively, the spacing between the outer peripheral surfaces of the two conical screws is the same.

In this embodiment, the diameter of the feeding screw 42 is gradually reduced from the second driving unit toward the feeding channel 411, and the convex blades 421 with different heights on the outer peripheral surface of the feeding screw 42 are used to realize gradual cutting of the block-shaped raw material, specifically, when the volume of the block-shaped raw material in the feeding bin 41 is large, the convex blade 421 with the higher height can perform preliminary cutting on the raw material, and as the convex blade 421 on the feeding screw 42 conveys the raw material from the position close to the second driving unit to the position close to the feeding channel 411, the feeding screw 42 further cuts the preliminarily cut raw material by the convex blade 421 with the smaller height close to the feeding channel 411. Meanwhile, the arrangement can improve the universality of the cutting and feeding mechanism 4, and the cutting can be realized for both large-volume blocky raw materials and small-volume blocky raw materials.

In one embodiment, referring to fig. 1 and 2, as a specific implementation of the mixing mill provided by the embodiment of the present application, the auxiliary material conveying mechanism 5 includes a hopper 51 for containing the auxiliary material and a quantitative feeding assembly 52 for conveying the auxiliary material in the hopper 51 to the mixing chamber. The feeding end of the quantitative feeding component 52 is communicated with the hopper 51, and the discharging end of the quantitative feeding component 52 is communicated with the mixing cavity. The hopper 51 and the constant feeding unit 52 are mounted on the housing 1, respectively, wherein a fixing bracket may be mounted on an outer circumferential surface of the housing 1, and the hopper 51 and the constant feeding unit 52 may be mounted on the fixing bracket.

In this embodiment, the quantitative feeding component 52 can feed the auxiliary materials with fixed weight or fixed volume into the mixing chamber as required, and does not need to manually weigh the auxiliary materials. The weight of the auxiliary materials is calculated according to the weight of the raw materials, and the auxiliary materials are fed into the mixing chamber through the quantitative feeding component 52 according to the calculated weight. Enough auxiliary materials can be put into the hopper 51 at one time and can be supplemented periodically, so that the mixing efficiency is improved, and the auxiliary materials are prevented from being polluted in the manual weighing process.

In an embodiment, referring to fig. 1 and fig. 2, as a specific implementation manner of the mixing mill provided in the embodiment of the present application, the quantitative feeding assembly 52 includes a cylinder 521 mounted on the housing 1 and communicated with the discharge end of the hopper 51, and a material pushing unit 522 for delivering the auxiliary materials in the cylinder 521 to the mixing chamber, wherein the material pushing unit 522 is mounted on the housing 1, and an output end of the material pushing unit 522 extends into the cylinder 521. Illustratively, the cylinder 521 is positioned below the barrel, the side wall of the cylinder 521 is communicated with the bottom end of the hopper 51, one end of the cylinder 521 is arranged on the shell 1 and is communicated with the mixing chamber, and the output end of the material pushing unit 522 extends into the cylinder 521 from the other end of the cylinder 521. In this embodiment, the staff can control the material pushing unit 522 to convey a certain amount of the auxiliary materials into the mixing chamber, so as to avoid weighing the auxiliary materials before feeding the auxiliary materials each time, thereby avoiding the auxiliary materials from being polluted when contacting with hands, air and the weighing device.

In an embodiment, referring to fig. 1 and fig. 2, as a specific implementation of the mixing mill provided in the embodiment of the present application, the material pushing unit 522 includes a material pushing screw rotatably installed in the cylinder 521 and a motor for driving the material pushing screw to rotate. It will be readily appreciated that the pusher screw is provided with a screw thread on its outer peripheral surface which, during rotation, transports the complementary raw material from the hopper 51 through the barrel 521 to the interior of the mixing chamber. The motor is mounted on the housing 1 and connected to the pushing screw rod, specifically, one end of the pushing screw rod, which is far away from the housing 1, extends out of the cylinder 521, and an output shaft of the motor may be connected to one end of the pushing screw rod, which extends out of the cylinder 521. It is worth mentioning that the motor of the pushing unit 522 is a servo motor, that is, the number of rotation turns of the output shaft of the motor can be controlled, and the number of rotation turns of the pushing screw can be controlled by the servo motor, so as to realize the quantitative conveying of the auxiliary materials. In a possible implementation manner, the output shaft of the motor and the pushing screw rod can be driven through a gear pair, and the rotating speed ratio between the output shaft of the motor and the pushing screw rod can be adjusted through the gear pair.

In another possible implementation manner, the pushing unit 522 includes a pushing rod installed in the cylinder 521 and a cylinder/oil cylinder for driving the pushing rod to move back and forth along the central axis of the cylinder 521, and the cylinder/oil cylinder is installed on the housing 1 and connected with the pushing rod. Schematically, when auxiliary materials are required to be supplied to the mixing chamber, a worker only needs to control the output shaft of the air cylinder/oil cylinder to drive the material pushing rod to move for a preset length, and then the quantitative auxiliary materials can be conveyed to the inside of the mixing chamber. The embodiment is only exemplary, and those skilled in the art may also use an electric cylinder to drive the material pushing rod to move, which is not limited herein.

In this embodiment, when the auxiliary materials are required to be supplied to the mixing chamber, the worker only needs to control the motor or the cylinder/oil cylinder to work, so that the pushing unit 522 can be controlled to convey a certain amount of auxiliary materials to the mixing chamber.

In one embodiment, as an embodiment of the mixer provided by the embodiments of the present application, the quantitative feeding assembly 52 further comprises a non-return valve (not shown) installed on the discharging end of the cylinder 521. It will be readily appreciated that the non-return valve may control the communication between the barrel 521 and the mixing chamber. The specific structure of the check valve is not limited in this embodiment, and those skilled in the art can select a suitable check valve according to actual needs, and certainly, an existing check valve on the market can also be selected. In this embodiment, after the auxiliary material conveying mechanism 5 conveys the auxiliary material with a fixed weight or a fixed volume into the mixing chamber, the check valve can cut off the communication between the quantitative feeding component 52 and the mixing chamber, so as to prevent the residual auxiliary material in the auxiliary material conveying mechanism 5 from contacting and reacting with the raw material in the mixing chamber.

In a possible implementation, the top of the hopper 51 is provided with a cover (not shown) for closing off the hopper 51. It is easy to understand that the top of the hopper 51 is opened with an opening for feeding, and the cover can seal the opening of the hopper 51. Wherein the cover may be a sheet structure matching the shape of the opening of the hopper 51, and illustratively, the cover may be hingedly mounted on the hopper 51. In this embodiment, the sealing cover can isolate the auxiliary material in the hopper 51 from the external environment, and avoid the auxiliary material in the hopper 51 from being polluted by the dirt in the external environment.

In one embodiment, referring to fig. 1, fig. 3 and fig. 4, as a specific implementation of the mixer provided in the embodiments of the present application, the mixing screw 2 includes a feeding section 21 and a mixing section 22, wherein the feeding section 21 is located at an end of the mixing section 22 facing the cutting and feeding mechanism 4. The outer circumferential surface of the feeding section 21 is provided with a first spiral protrusion 211, and the cross-sectional shape of the first spiral protrusion 211 may be rectangular, for example. The outer peripheral surface of the kneading segment 22 is provided with a second spiral protrusion 221 and a third spiral protrusion 222, respectively, and the cross-sectional shapes of the second spiral protrusion 221 and the third spiral protrusion 222 may be approximately triangular. Wherein the lead of second helical projection 221 is equal to the lead of third helical projection 222, and the lead of second helical projection 221 is greater than the lead of first helical projection 211. The spiral direction of the second spiral projection 221 is opposite to the spiral direction of the third spiral projection 222, wherein the end of the second spiral projection 221 is connected with the end of the third spiral projection 222, the intersection position of the second spiral projection 221 and the third spiral projection 222 forms a peak 223, and fig. 4 shows that the peak 223 is located at the middle position of the mixing section 22. It is worth mentioning that the pressure, power and temperature are gradually increased until the peak 223 reaches the maximum value before the raw material reaches the peak 223 from the feeding section 21, which is beneficial to gradually improve the mixing efficiency and effect.

Referring to fig. 1, the discharge end of the cutting and feeding mechanism 4 is disposed opposite to the feeding section 21, and the discharge end of the auxiliary material conveying mechanism 5 is disposed opposite to the mixing section 22. The kneading section 22 is used for mixing and refining the raw materials and various auxiliary materials in the kneading chamber. On the one hand, the material feeding section 21 conveys the raw materials fed by the cutting and feeding mechanism 4 to the mixing section 22, and on the other hand, the material feeding section 21 can further mix the raw materials primarily mixed by the cutting and feeding mechanism 4, so that the time for combining and mixing the raw materials with various auxiliary materials in the mixing section 22 is reduced, and the mixing efficiency is improved.

In this embodiment, the feeding section 21 conveys and further mixes the raw materials by the first spiral protrusions 211 on the outer peripheral surface thereof; the crest 223 formed by the first spiral protrusion 211 and the second spiral protrusion 221 is arranged on the outer peripheral surface of the mixing section 22, so that the pressure, the power and the temperature are gradually increased before the raw material reaches the crest 223 of the mixing section 22 from the feeding section 21, and the raw material reaches the maximum value when being positioned at the crest 223, thereby being beneficial to gradually improving the mixing efficiency and improving the mixing effect of the material.

Referring to fig. 1, fig. 3 and fig. 4, the number of the auxiliary material conveying mechanisms 5 may be three, and the three auxiliary material conveying mechanisms 5 are defined as a color master conveying mechanism, a first vulcanizing agent conveying mechanism and a second vulcanizing agent conveying mechanism, respectively. Wherein, the color master batch conveying mechanism is arranged at one side of the shell 1 and is used for supplying color master batch into the mixing cavity. The discharging end of the color master batch conveying mechanism is opposite to the peak 223 position of the mixing section 22. It is worth mentioning that the mixing screw 2 has the strongest mixing effect and mixing force on the raw materials at the peak 223 position, and the discharging end of the color master conveying mechanism is opposite to the peak 223, so that the color master is favorably mixed with the raw materials better, and the color mixing effect of the raw materials is improved.

The first vulcanizing agent conveying mechanism is used for conveying a first vulcanizing agent into the mixing chamber, the second vulcanizing agent conveying mechanism is used for conveying a second vulcanizing agent into the mixing chamber, and after the first vulcanizing agent and the second vulcanizing agent are doped into raw materials, subsequent mixing materials are convenient to heat, vulcanize and mold. The first and second sulfidiser delivery mechanisms may be located side-by-side on the other side of the housing 1. The discharge end of the first vulcanizing agent conveying mechanism is opposite to one side of the peak 223 facing the feeding section 21, and the discharge end of the second vulcanizing agent conveying mechanism is opposite to one side of the peak 223 far away from the feeding section 21. That is, during the mixing process, the first vulcanizing agent is combined with the raw materials before the second vulcanizing agent, so as to meet the mixing requirement. It should be noted that the first vulcanizing agent and the second vulcanizing agent are well known to those skilled in the art, and those skilled in the art select specific vulcanizing agents according to actual needs, which are not described herein in detail.

In one embodiment, referring to fig. 6, as a specific implementation of the mixer provided in the embodiments of the present application, the bottom of the housing 1 is provided with a discharge port 11 communicating with the mixing chamber. In particular, the discharge opening 11 may be provided in the lower cover of the housing. In a possible implementation manner, the discharge port 11 is provided with a discharge valve, the communication state of the discharge port 11 and the mixing chamber can be controlled by controlling the discharge valve, and after the raw materials and various auxiliary materials are mixed in the mixing chamber, a worker can open the discharge valve to discharge the dough-shaped finished product from the discharge port 11. The specific structure of the discharge valve is not limited in this embodiment, and a person skilled in the art can select any suitable discharge valve according to actual needs, and of course, an existing discharge valve on the market can also be selected.

In a possible implementation manner, the housing 1 includes an upper housing cover and a lower housing cover that are fastened to each other, and the upper housing cover and the lower housing cover are detachably connected. Illustratively, the mixing mill also comprises a support frame, and the lower cover of the shell can be arranged on the support frame, and the lower cover of the shell is provided with the mixing chamber. The upper housing cover may be removably attached to the lower housing cover by fasteners, such as bolts. In this embodiment, casing 1 detachable design is convenient for clear up the mixing cavity of casing inside after mixing.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. A mixing mill, characterized by comprising:

the mixing device comprises a shell, a mixing chamber and a mixing chamber, wherein the shell is provided with the mixing chamber;

a kneading screw rotatably mounted inside the kneading chamber;

the first driving unit is arranged on the shell, is connected with the mixing screw and is used for driving the mixing screw to rotate;

the cutting and feeding mechanism is arranged on the shell and used for supplying raw materials into the mixing cavity;

and the auxiliary material conveying mechanism is arranged on the shell, is arranged at intervals with the cutting and feeding mechanism, and is used for supplying auxiliary materials into the mixing cavity.

2. The mixing mill according to claim 1, wherein said cutting and feeding mechanism comprises a charging bin mounted on said housing, a feeding screw rotatably mounted in said charging bin, and a second driving unit for driving said feeding screw to rotate, said second driving unit being mounted on said charging bin and connected to said feeding screw, said charging bin being provided with a feeding passage communicating with said mixing chamber.

3. A mixer according to claim 2, wherein the number of said feed screws is two, two of said feed screws are installed in said batch bin at intervals, one end of each of said feed screws is connected to said second drive unit, and the other end of each of said feed screws is directed to the feeding end of said feed channel.

4. A mixing mill according to claim 3, wherein the diameter of each of said feed screws is gradually reduced toward said feed passage by said second drive unit, and the distance between the axes of two of said feed screws is gradually reduced toward said feed passage by said second drive unit.

5. A mixer according to claim 1, wherein said auxiliary material delivery mechanism includes a hopper for containing said auxiliary material and a meter-feed assembly for delivering said auxiliary material from said hopper to said mixing chamber, said hopper and said meter-feed assembly being mounted on said housing respectively.

6. The mixing mill according to claim 5, wherein the quantitative feeding assembly comprises a barrel mounted on the housing and communicating with the discharge end of the hopper, and a pushing unit for conveying the auxiliary material in the barrel into the mixing chamber, the pushing unit being mounted on the housing, the output end of the pushing unit extending into the barrel.

7. The mixing mill according to claim 6, wherein the pushing unit comprises a pushing screw rotatably mounted in the barrel and a motor for driving the pushing screw to rotate, the motor being mounted on the housing and connected to the pushing screw;

or the material pushing unit comprises a material pushing rod arranged in the cylinder body and an air cylinder/oil cylinder used for driving the material pushing rod to move in a reciprocating mode along the central axis of the cylinder body, and the air cylinder/oil cylinder is arranged on the shell and connected with the material pushing rod.

8. A mixer according to claim 6, wherein said dosing assembly further includes a non-return valve mounted on the discharge end of said barrel; and/or the presence of a gas in the gas,

and a sealing cover for sealing the hopper is arranged at the top of the hopper.

9. A mixing mill according to any one of claims 1 to 8, wherein the mixing screw comprises a feeding section and a mixing section, a first spiral protrusion is provided on the outer peripheral surface of the feeding section, a second spiral protrusion and a third spiral protrusion are provided on the outer peripheral surface of the mixing section, respectively, the spiral direction of the second spiral protrusion is opposite to that of the third spiral protrusion, and the intersection position of the second spiral protrusion and the third spiral protrusion forms a peak; the discharge end of the cutting and feeding mechanism is arranged right opposite to the feeding section, and the discharge end of the auxiliary material conveying mechanism is arranged right opposite to the mixing section.

10. A mixer according to any one of claims 1 to 8, wherein the base of the housing is provided with a discharge opening communicating with the mixing chamber; and/or the presence of a gas in the gas,

the casing includes casing upper cover and casing lower cover of mutual lock, the casing upper cover with the connection can be dismantled to the casing lower cover.

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