CN115364756B - Weighing mixer - Google Patents

Abstract

A weigh mixer comprising: the shell, the position close to middle end of said shell both sides has first discharge door and second discharge door separately; the first rotating shaft is rotatably arranged in the shell, the second rotating shaft is parallel to the first rotating shaft and can be arranged in the shell in a relatively rotating mode, a first discharging interval is formed between a first blade and a second blade which are arranged on the first rotating shaft, a second discharging interval is formed between a third blade and a fourth blade which are arranged on the second rotating shaft, the first discharging interval and the second discharging interval correspond to the first discharging door and the second discharging door respectively, and the first discharging interval and the second discharging interval are axially staggered. The invention can effectively solve the problem of discharging extrusion of the mixer.

Description

Weighing mixer

Technical Field

The invention relates to mechanical equipment in the field of mixing, in particular to a weighing mixer.

Background

In the current pasture cultivation, the mixed forage is always required to be mixed and then fed to livestock, a batch of mixers for daily ration processing appear on the market, a part of mixers are provided with discharge ports on two sides of the middle position of the mixers for increasing discharge quantity, materials at two ends of the discharge ports are collected in the middle for discharging, but the extrusion force at the discharge ports is large in this way, and after the mixed forage is used for a long time, a discharge door or a mixer shell is easy to deform.

Disclosure of Invention

Based on the problems, the invention provides a mixer capable of effectively improving extrusion force of a discharge port, and the concrete scheme is as follows.

A weigh mixer comprising: the shell, the position close to middle end of said shell both sides has first discharge door and second discharge door separately; the first rotating shaft is rotatably arranged in the shell, a first blade and a second blade are respectively arranged on the first rotating shaft in a spiral mode, the first blade and the second blade are respectively arranged from one end of the first rotating shaft to the position of the first discharging door, and the spiral directions of the first blade and the second blade are opposite; the second rotating shaft is parallel to the first rotating shaft and is rotatably arranged in the shell, a third blade and a fourth blade are respectively arranged on the second rotating shaft in a spiral mode, the third blade and the fourth blade are respectively arranged from one end of the second rotating shaft towards the second discharging door, the third blade is arranged on the same side of the first blade and is arranged in a spiral direction opposite to the first blade, and the fourth blade is arranged on the same side of the second blade and is arranged in a spiral direction opposite to the second blade; a first discharging interval is formed between the first blade and the second blade, a second discharging interval is formed between the third blade and the fourth blade, and the first discharging interval and the second discharging interval are axially staggered.

The setting of first pivot and second pivot can guarantee that the discharge gate of mixer both sides all has the material to discharge, sets up the mixed effect that four different paddles can guarantee the material simultaneously, after the material gets into the mixer, can assemble to the intermediate position through rotatory first pivot and second pivot and discharge.

The first discharging interval formed by the first blade and the second blade at the moment is staggered with the second discharging interval formed by the third blade and the fourth blade, and the staggered arrangement ensures that the storage space of the materials is not at one position, namely, the discharging points of the materials can be staggered through the arrangement, so that the materials cannot be gathered at one point for discharging, and the extrusion of the first discharging door and the second discharging door on two sides is reduced.

In one embodiment, an end of the first blade adjacent to the first outfeed gate is configured as a first delivery end, and an end of the third blade adjacent to the second outfeed gate is configured as a third delivery end, the first delivery end being axially configured closer to the first outfeed gate than the third delivery end; one end of the second blade, which is close to the first discharging door, is configured as a second conveying end, one end of the fourth blade, which is close to the second discharging door, is configured as a fourth conveying end, and the fourth conveying end is axially configured to be closer to the second discharging door than the second conveying end.

Utilize above-mentioned first paddle and third paddle to and the position cooperation of second paddle and fourth paddle for the interval of first ejection of compact that forms can effectively stagger with the interval of second ejection of compact, thereby guarantee that the material is smooth and easy to discharge, can also reduce the production of extrusion force.

In one embodiment, a first refining plate is connected between the first conveying end and the second conveying end, and a second refining plate is connected between the third conveying end and the fourth conveying end; the first refining plate and the second refining plate are respectively arranged on the first rotating shaft and the second rotating shaft in a spiral mode, and the first refining plate and the second refining plate are respectively provided with a first refining opening and a second refining opening along the spiral direction.

The use of first refining plate and second refining plate has guaranteed not being in the state of vacuum in first ejection of compact interval and the second ejection of compact interval, and first refining plate and second refining plate can assist the material to arrange the material, and the seting up of first refining mouth and second refining mouth of seting up on it simultaneously can guarantee that its refining volume of above-mentioned first, second refining plate is less than the propelling movement volume of first paddle and second paddle, namely utilizes first, second refining plate to guarantee that the material slows down at the speed of getting into first ejection of compact interval and second ejection of compact interval, further prevents that it from forming the impact, and the refining mouth can also play the function of assisting the scattering simultaneously, prevents that the material from agglomerating and discharging in order to form the impact to the downstream equipment.

In one embodiment, the shell comprises a feeding shell at the upper end and a mixing cavity arranged at the lower end of the feeding shell; the mixing cavity comprises a material guide plate which is respectively connected with two sides of the lower end of the feeding shell and gradually inclines inwards, the lower ends of the material guide plates at two sides are respectively connected with an inwards concave arc plate, one end of each arc plate is configured to be a connecting end, the other end of each arc plate is configured to be a fixed end, the connecting end is connected with the lower end of the material guide plate, and the fixed ends at two sides are converged into the mixing cavity and are mutually connected; the first rotating shaft and the second rotating shaft are respectively arranged in the cavity of the arc plate concave, the two sides of the fixed end in the length direction are respectively provided with a tooth-shaped plate facing the first rotating shaft and the second rotating shaft, and the tooth-shaped plate is provided with a plurality of crushing openings.

In one embodiment, the first blade, the second blade, the third blade and the fourth blade are all provided with a plurality of crushing cutters.

In one embodiment, the first blade, the second blade, the third blade and the fourth blade are provided with crushing cutters, and the crushing cutters are configured to be installed along the opening direction of the crushing opening, so that the crushing cutters can pass through the corresponding crushing opening when rotating along the first rotating shaft or the second rotating shaft.

In one embodiment, the crushing cutter is configured in a round shape, the outer circle of the crushing cutter is configured with a plurality of cutter heads, and the crushing cutters are connected with the first blade, the second blade, the third blade and the fourth blade through square shafts.

In one embodiment, a base is arranged at the lower end of the mixing cavity, and the mixing cavity is connected with the base by a weighing sensor.

In one embodiment, the first discharging door and the second discharging door are respectively arranged on two sides of the material guiding plate and used for shielding a discharging hole on the material guiding plate, the first discharging door and the second discharging door both comprise a track arranged on the material guiding plate and a door plate arranged in the track and capable of moving in the track, a door opening device is arranged above the door plate, and the door opening device comprises: the supporting seat is arranged on the material guide plate; and one end of the oil cylinder is hinged with the supporting seat, and the other end of the oil cylinder is hinged with the door plate.

In one embodiment, a magnet is mounted at the lower end of the discharge port.

Drawings

Fig. 1 is a schematic diagram of a weighing mixer.

Fig. 2 is a top view of the weigh mixer.

Fig. 3 is a front view of the weigh mixer.

Fig. 4 is an internal cross-sectional view of the weigh mixer.

Fig. 5 is a schematic view of a mixing chamber.

Fig. 6 is an enlarged view of a portion of the installation of the crushing blade.

Fig. 7 is a schematic view of a first shaft structure.

Fig. 8 is a schematic diagram showing the relative positions of the first rotating shaft and the second rotating shaft.

Fig. 9 is a side view of a first refining plate.

Fig. 10 is an expanded view of the first refining plate.

In the figure: 1. a housing; 2. a first discharge door; 3. a door opening device; 4. a weighing sensor; 5. a base; 6. a first rotating shaft; 7. a second rotating shaft; 8. a magnet; 9. a second discharge door; 10. a motor; 11. an adjusting device, a 12, a crushing knife; 13. a tooth-shaped plate;

100. a mixing chamber; 101. a feed housing; 102. an arc-shaped plate; 103. a connection end; 104. a fixed end; 105. a material guide plate;

111. a first mount; 112. adjusting a screw; 113. a second mounting base;

121. a square shaft;

131. a crushing port;

201. a track; 202. a door panel;

301. a support base; 302. an oil cylinder;

61. a second blade; 62. a first refining plate; 63. the first blade, 64 and the first discharging interval;

71. a fourth blade; 72. the second refining plate, 73, the third paddle, 74 and the second discharging interval;

611. a second delivery end; 631. a first delivery end;

621. a first refining blade; 622. a second refining blade; 623. a third refining blade; 624. a first material homogenizing port; 625. a second material homogenizing port;

711. a fourth delivery end; 731. and a third delivery end.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, a weighing mixer includes a casing 1, a first rotating shaft 6 and a second rotating shaft 7 which rotate relatively are disposed in the casing 1, and are driven by a motor 10 disposed at one end of the casing 1, a first discharging door 2 and a second discharging door 9 are disposed at positions close to the middle end of two sides of the casing 1, it should be noted that the first discharging door 2 and the second discharging door 9 may be disposed at a middle position of the casing 1 or may be disposed at a position close to the middle position, and after materials enter the mixer, the first rotating shaft 6 and the second rotating shaft 7 which rotate relatively gradually convey the materials to the middle end, so that the materials can be discharged through the first discharging door 2 and the second discharging door 9 on two sides.

In daily use, the above discharging mode can gradually collect materials in the middle position, and form larger extrusion force on the first discharging door 2 and the second discharging door 9, after the service time is long, the first discharging door 2 and the second discharging door 9 can be damaged, and the following scheme is provided for the above problems.

Referring to fig. 2, 7 and 8, the first shaft 6 is provided with a first blade 63 and a second blade 61, the first blade 63 and the second blade 61 extend from two ends of the first shaft 6 toward the inner side of the first shaft 6, and are configured such that one end of the first blade 63 near the inner side of the first shaft 6 is a first conveying end 631, one end of the second blade 61 near the inner side of the first shaft 6 is a second conveying end 611, and a first discharging interval 64 is formed between the first conveying end 631 and the second conveying end 611.

The second rotating shaft 7 is provided with a third blade 73 and a fourth blade 71, the third blade 73 and the fourth blade 71 extend from two ends of the second rotating shaft 7 towards the inner side of the second rotating shaft 7 respectively, the third blade 73 is configured to be a third conveying end 731 near one end of the inner side of the second rotating shaft 7, the fourth blade 71 is configured to be a fourth conveying end 711 near one end of the inner side of the second rotating shaft 7, and a second discharging interval 74 is configured between the third conveying end 731 and the fourth conveying end 711.

The first blade 63 and the second blade 61 are configured to have opposite spiral directions, the third blade 73 and the fourth blade 71 are configured to have opposite spiral directions, the third blade 73 is arranged on the same side of the first blade 63, the spiral directions of the first blade and the second blade are opposite, and the first discharging section 64 and the second discharging section 74 are configured to be staggered.

So, after the material gets into the mixer, first pivot 6 and second pivot 7 can carry the material towards the centre to get into first ejection of compact interval 64 and second ejection of compact interval 74 respectively, first ejection of compact interval 64 corresponds to first ejection of compact door 2, second ejection of compact interval 74 corresponds to second ejection of compact door 9, so, can realize staggering the ejection of compact when above-mentioned material is discharged, relative material group can not form mutual extrusion, the excessive accumulation of material can not appear in mixer ejection of compact position department to can prevent the damage of mixer or first ejection of compact door 2, second ejection of compact door 9.

In an embodiment, the first conveying end 631 is disposed closer to the first discharging door 2 than the third conveying end 731, the fourth conveying end 711 is disposed closer to the second discharging door 9 than the second conveying end 611, such that the first discharging section 64 formed by the first conveying end 631 and the fourth conveying end 711 is disposed offset from the second discharging section 74, that is, the first discharging section 64 is disposed on the right side of the second discharging section 74 as shown in the drawing, and it should be understood that the design herein should not be limited to this arrangement, and the reverse arrangement is also possible, that is, the first conveying end 631 is disposed away from the first discharging door 2 than the third conveying end 731, and the fourth conveying end 711 is disposed away from the second discharging door 9 than the second conveying end 611, and the arrangement may also be such that the first discharging section 64 and the second discharging section 74 are offset.

Referring to fig. 2, 9 and 10, in one embodiment, a first refining plate 62 and a second refining plate 72 are respectively disposed in the first discharging section 64 and the second discharging section 74, specifically, the first refining plates 62 are respectively spirally disposed on the first rotating shaft 6, one end of the first refining plates 62 is connected to the first conveying end 631, and the other end is connected to the second conveying end 611.

The second refining plates 72 are respectively spirally disposed on the second rotating shaft 7, and are configured such that one end of the second refining plate 72 is connected to the third conveying end 731 and the other end is connected to the fourth conveying end 711.

The first and second refining plates 62 and 72 are used for assisting in discharging the materials in the first and second discharging sections 64 and 74, and the first and second refining plates 62 and 72 are provided with first and second refining openings 624 and 625, respectively, and the first and second refining plates 62 and 72 are substantially identical, so the first refining plate 62 is illustrated in this figure.

The first refining opening 624 and the second refining opening 625 are formed on the first refining plate 62, the first refining opening 624 and the second refining opening 625 are formed along the spiral direction, the design of the refining plate ensures that the first discharging section 64 and the second discharging section 74 are not completely blank, if no auxiliary discharging device is arranged in the discharging section, materials are easy to be accumulated in the discharging section, or the materials are difficult to be discharged cleanly, meanwhile, the discharging speed of the discharging device is not too fast except for the auxiliary discharging device, otherwise, the materials pass through the discharging section to be extruded again.

The provision of the above-mentioned openings ensures the conveying capability of the first and second refining plates 62, 72, and limits the conveying speed, further ensures the uniformity of the discharge, and further prevents the problem of extrusion of the material.

In one embodiment, the first and second refining ports 624, 625 are formed in the first refining plate 62, respectively, such that the first refining plate 62 produces the first refining lobe 621, the second refining lobe 622, and the third refining lobe 623, and the first refining lobe 621, the second refining lobe 622, and the third refining lobe 623 cooperate with each other and assist in discharging.

Referring to fig. 1, 4 and 5, in an embodiment, a housing 1 includes a feeding housing 101 disposed at an upper end and a mixing cavity 100 disposed at a lower end of the feeding housing 101, the feeding housing 101 is used for feeding, the mixing cavity 100 includes guide plates 105 disposed at two sides, the upper ends of the guide plates 105 are connected with the feeding housing 101 and configured to gradually lean downward, the lower ends of the guide plates 105 disposed at two sides are connected with arc plates 102, the arc plates 102 are configured as concave semicircular arc structures, one ends of the arc plates are configured as connecting ends 103, the other ends of the arc plates are configured as fixed ends 104, the connecting ends 103 are connected with the lower end of the feeding housing 101, the fixed ends 104 of the arc plates 102 disposed at two sides are disposed in the mixing cavity 100 and connected with each other, and the first rotating shaft 6 and the second rotating shaft 7 are respectively disposed in the concave cavities of the arc plates 102, so that materials are more easily mixed together.

Because many mixed materials are mostly straw materials, after the mixed materials are put into a mixer, many straws are long, and the mixed materials are easy to wind in the first rotating shaft 6 and the second rotating shaft 7 in long-time mixing, in order to solve the problems, the invention provides a scheme capable of assisting in crushing in the mixing process, and the scheme is specifically as follows.

Referring to fig. 2 and 4, the fixed end 104 is provided with a toothed plate 13 along the length direction of the first rotating shaft 6, two sides of the fixed end 104 are respectively provided with the toothed plate 13 towards one sides of the first rotating shaft 6 and the second rotating shaft 7, and a plurality of crushing openings 131 are formed in the toothed plate 13.

In one embodiment, the cross section of the tooth-shaped plate 13 is designed into an L-shaped structure, and the L-shaped structure can reduce the shredding force as far as possible and far away from the center of the rotating shaft, and the specific scheme is as follows.

Referring to fig. 4 and 6, the tooth-shaped plate 13 is configured as an L-shaped structure, the upper end of the tooth-shaped plate is connected with the fixed end 104, and the other end of the tooth-shaped plate is provided with a plurality of crushing openings 131 on a horizontal plane, so that the crushing openings 131 can be ensured to be positioned below the axes of the first rotating shaft 6 and the second rotating shaft 7, and the materials are prevented from generating larger reverse acting force on the rotating shaft itself in the shredding process, so that the shaft is damaged.

In order to further enhance the crushing effect, the invention also provides a shredding scheme, which is specifically as follows.

Referring to fig. 4 and 6, a plurality of crushing blades 12 are fixedly mounted on the first blade 63, the second blade 61, the third blade 73 and the fourth blade 71, and the crushing blades 12 can rotate along the first rotating shaft 6 and the second rotating shaft 7 to crush.

In an embodiment, the crushing blade 12 is configured as a circular structure, the outer circle of the crushing blade 12 is provided with a plurality of blades, and the crushing blade 12 is fixedly connected with the blades by adopting the square shaft 121, so that when the blades at one end of the crushing blade 12, which is exposed out of the blades, are worn seriously or damaged, the crushing blade 12 can be disassembled, and the complete blades are exposed out for use by re-clamping through the square shaft 121.

The above arrangement can prolong the service life of the whole crushing cutter 12, and the square shaft 121 provides at least four direction replacement, for this purpose, the crushing cutter 12 can be configured with 9 cutter heads or 12 cutter heads, and the cutter heads exposed outside the blades can be configured with 3 or 4 cutter heads, so that the crushing cutter 12 can be replaced for 3 or 4 times in the use process.

Through the circular structure of the crushing cutter 12, and the installation of the square shaft 121, the exposed cutter head of the crushing cutter 12 can be ensured to be in a relatively intact state all the time, and when the cutter head is damaged, the crushing cutter 12 is only required to be disassembled, and the angle is readjusted for installation.

In another embodiment, the invention provides a scheme of combining the crushing cutter 21 with the tooth-shaped plate 13, so that the crushing effect can be further improved, and the specific scheme is as follows.

With continued reference to fig. 4 and 6, the mounting of the crushing blades 12 in the radial direction, i.e. the cutter heads of the crushing blades 12 are arranged towards the crushing openings 131 of the toothed plate 13, i.e. several crushing blades 12 are mounted in the axial direction of the first and second rotation shafts 6, 7, and the crushing blades 12 are adapted to the mounting of the crushing openings 131 such that the crushing blades 12 can pass through the crushing openings 131 when the crushing blades 12 are rotated with the first rotation shaft 6 or the second rotation shaft 7.

Above-mentioned setting can install initiative breaker additional on the basis of broken mouth 131, and broken mouth 131 is when tearing up the material of winding on first pivot 6 and the second pivot 7, and broken sword 12 can also continue to cut up it to make holistic material crushing effect better.

Referring to fig. 1 and 3, in an embodiment, a base 5 is installed at the lower end of a mixing cavity 100, and a weighing sensor 4 is connected between the mixing cavity 100 and the base 5, so that materials entering the mixer can be fed back by the weighing sensor 4, and meanwhile, the required discharging weight can be controlled by the weighing sensor 4 while discharging.

When the mixer and the base 5 are installed, the positions of the weighing sensor 4 and the two need to be adjusted, otherwise, the weighing is inaccurate, and the invention also provides an adjusting device 11.

Referring to fig. 1 and 3, an adjusting device 11 is connected between the mixing chamber 100 and the base 5, the adjusting device 11 includes a first mounting seat 111 disposed outside the mixing chamber 100, and a second mounting seat 113 disposed on the base, the first mounting seat 111 and the second mounting seat 113 are connected by adjusting screws 112 and are fixed by bolts, and the adjusting device 11 can be configured with 4 adjusting devices and is respectively mounted at four corners of the base 5.

Thus, when the installation is needed, if the problem of connection between the mixer and the base 5 by the weighing sensor 4 is found, the bolt at one end of the adjusting screw 112 can be detached for installation and adjustment, and after the adjustment is completed, the weighing sensor 4 is installed in place, and the adjusting device 11 can be detached.

With continued reference to fig. 1 and 3, in an embodiment, the first discharging door 2 and the second discharging door 9 are respectively disposed at two sides of the material guiding plate 105 and are used for controlling the material discharging of the material outlet formed on the material guiding plate 105, and since the first discharging door 2 and the second discharging door 9 have substantially the same structure, the detailed explanation of the first discharging door 2 is as follows.

The first discharging door 2 comprises a rail 201 arranged on the material guiding plate 105 and a door plate 202 inserted into the rail 201, so that the door plate 202 can move in the rail 201 to realize discharging of materials, specifically, the rail 201 can be arranged at two sides of a discharging hole, and the door plate 202 is inserted into the rail 201.

In order to realize the linkage with the weighing sensor 4, the door opening device 3 is further installed on the first discharging door 2 and the second discharging door 9, specifically, the door opening device 3 comprises a supporting seat 301 arranged on the mixing cavity 100, an oil cylinder 302 is arranged on the supporting seat 301, one end of the oil cylinder 302 is hinged with the supporting seat 301, and the other end of the oil cylinder 302 is hinged with the door plate 202, so that when discharging is needed, the oil cylinder 302 can control the door plate 202 to move upwards, and when enough materials are discharged, the oil cylinder 302 can control the door plate 202 to close next.

In an embodiment, the discharge holes at the lower ends of the first discharge door 2 and the second discharge door 9 are also provided with magnets 8, and the magnets 8 are used for sucking scrap iron and other impurities in the discharged materials and preventing the scrap iron and other impurities from entering downstream equipment.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for elements thereof, and that any modifications, equivalents, improvements or changes that fall within the spirit and principles of the present invention are intended to be within the scope of the present invention, and that those not specifically described in the present specification are within the skill of the art.

Claims (9)

1. A weigh mixer comprising:

the shell, the position close to middle end of said shell both sides has first discharge door and second discharge door separately;

the first rotating shaft is rotatably arranged in the shell, a first blade and a second blade are respectively arranged on the first rotating shaft in a spiral mode, the first blade and the second blade extend towards the inner side of the first rotating shaft from two ends of the first rotating shaft respectively, and the spiral directions of the first blade and the second blade are opposite;

the second rotating shaft is parallel to the first rotating shaft and can be arranged in the shell in a relatively rotating manner, a third blade and a fourth blade are respectively arranged on the second rotating shaft in a spiral manner, the third blade and the fourth blade are respectively arranged at two ends of the second rotating shaft in an extending manner towards the inner side of the second rotating shaft, the third blade is arranged on the same side of the first blade and is arranged in a spiral direction opposite to the first blade, and the fourth blade is arranged on the same side of the second blade and is arranged in a spiral direction opposite to the second blade;

a first discharging interval is formed between the first blade and the second blade, a second discharging interval is formed between the third blade and the fourth blade, the first discharging interval and the second discharging interval correspond to the first discharging door and the second discharging door respectively, and the first discharging interval and the second discharging interval are axially staggered;

one end of the first blade close to the first discharging door is configured as a first conveying end, one end of the third blade close to the second discharging door is configured as a third conveying end, and the first conveying end is axially configured to be closer to the first discharging door than the third conveying end;

one end of the second blade, which is close to the first discharging door, is configured as a second conveying end, one end of the fourth blade, which is close to the second discharging door, is configured as a fourth conveying end, and the fourth conveying end is axially configured to be closer to the second discharging door than the second conveying end.

2. The weighing mixer according to claim 1, wherein a first refining plate is connected between the first conveying end and the second conveying end, and a second refining plate is connected between the third conveying end and the fourth conveying end;

the first refining plate and the second refining plate are respectively arranged on the first rotating shaft and the second rotating shaft in a spiral mode, and the first refining plate and the second refining plate are respectively provided with a first refining opening and a second refining opening along the spiral direction.

3. A weigh mixer as recited in claim 1 wherein said housing comprises a feed housing at an upper end and a mixing chamber at a lower end of the feed housing;

the mixing cavity comprises a material guide plate which is respectively connected with two sides of the lower end of the feeding shell and gradually inclines inwards, the lower ends of the material guide plates at two sides are respectively connected with an inwards concave arc plate, one end of each arc plate is configured to be a connecting end, the other end of each arc plate is configured to be a fixed end, the connecting end is connected with the lower end of the material guide plate, and the fixed ends at two sides are converged into the mixing cavity and are mutually connected;

the first rotating shaft and the second rotating shaft are respectively arranged in the cavity of the arc plate concave, the two sides of the fixed end in the length direction are respectively provided with a tooth-shaped plate facing the first rotating shaft and the second rotating shaft, and the tooth-shaped plate is provided with a plurality of crushing openings.

4. The weighing mixer according to claim 1, wherein a plurality of crushing cutters are arranged on each of the first blade, the second blade, the third blade and the fourth blade.

5. A weighing mixer according to claim 3, wherein said first, second, third and fourth paddles each have a crushing blade mounted thereon, said crushing blade being configured to be mounted in the direction of the opening of said crushing mouth such that said crushing blade passes through the respective crushing mouth when rotated along said first or second axis of rotation.

6. The weighing mixer according to claim 4 or 5, wherein the crushing cutter is configured in a round shape, a plurality of cutter heads are arranged on the outer circle of the crushing cutter, and a plurality of crushing cutters are connected with the first blade, the second blade, the third blade and the fourth blade by adopting square shafts.

7. A weighing mixer according to claim 3, wherein a base is arranged at the lower end of the mixing cavity, and a weighing sensor is used for connecting the mixing cavity with the base.

8. A weighing mixer according to claim 3, wherein the first and second discharge doors are respectively disposed on the guide plates at two sides and are used for shielding the discharge openings on the guide plates, the first and second discharge doors each comprise a track disposed on the guide plates and a door plate disposed in the track and movable in the track, a door opening device is disposed above the door plate, and the door opening device comprises:

the supporting seat is arranged on the material guide plate;

and one end of the oil cylinder is hinged with the supporting seat, and the other end of the oil cylinder is hinged with the door plate.

9. The weight mixer of claim 8, wherein a magnet is mounted at the lower end of the outlet.