CN218809157U - Friction material metering and conveying device - Google Patents

Abstract

The utility model discloses a friction material metering and conveying device, which comprises a supporting frame, a quantitative feeding mechanism, a metering mechanism positioned below the quantitative feeding mechanism and a movable receiving mechanism positioned below the metering mechanism; the quantitative feeding mechanism comprises a storage hopper and at least one double-helix quantitative feeding unit, and the double-helix quantitative feeding unit comprises a large spiral conveying assembly and a small spiral conveying assembly; the large spiral conveying assembly and the small spiral conveying assembly respectively comprise a conveying channel provided with a channel inlet and a channel outlet, a rotating screw rod with one end connected with a motor is arranged in the conveying channel, the rotating screw rod in the large spiral conveying assembly is a large spiral rotating screw rod provided with a large spiral blade, and the rotating screw rod in the small spiral conveying assembly is a small rotating screw rod provided with a small spiral blade; the diameter of the large helical blade is larger than that of the small helical blade, and the pitch of the large helical blade is wider than that of the small helical blade. The utility model discloses simple structure can adjust feed speed and precision better.

Description

Friction material metering and conveying device

Technical Field

The utility model relates to a friction material measures technical field, especially a friction material measures conveyor.

Background

In the process of measuring friction materials (materials), the operation process is generally divided into a plurality of steps of feeding materials (inputting the materials into a measuring mechanism), measuring the materials (weighing and measuring the materials by using the measuring mechanism) and transferring the materials after weighing and measuring to the next processing station. Through reasonable layout, the friction material metering and conveying device can be formed, wherein the operation steps of feeding materials, metering materials, transferring materials after metering and weighing and the like are sequentially and continuously carried out.

The existing feeding mechanism for pushing materials generally comprises a storage hopper and a conveying component positioned below a stored material, wherein the conveying component generally adopts a spiral conveyor (a conveying device which utilizes a motor to drive a spiral to rotate and push materials so as to realize the purpose of conveying the materials). However, most of the existing screw conveyors are of a single-screw structure (i.e., include a single screw), and the diameter of the screw blade on the screw in the single-screw structure is fixed, which results in a limited adjustable range of the feeding amount of the feeding mechanism, and if the diameter of the screw blade on the screw is large, it is difficult to ensure the precision, and if the diameter of the screw blade on the screw is small, it is difficult to ensure the speed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a friction material measures conveyor solves the limited technical problem of adjustable range of feed volume in the feed operation because of adopting single helical structure to lead to by the feed mechanism among the current friction material measures conveyor. The utility model discloses simple structure, the cost is lower, can improve the adjustable range of feed mechanism pay-off volume, compromises the precision and the speed of pay-off better.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a friction material metering and conveying device comprises a supporting frame, a quantitative feeding mechanism, a metering mechanism and a movable material receiving mechanism, wherein the metering mechanism is positioned at the upper end of the supporting frame below the quantitative feeding mechanism;

the quantitative feeding mechanism comprises a storage feeding unit and at least one double-helix quantitative feeding unit; the material storage and supply unit comprises a material storage hopper with an upper opening and a lower opening, and the material storage hopper is also connected with a material pushing assembly for pushing materials in the material storage hopper towards the inner lower opening of the material storage hopper;

the metering mechanism comprises a metering hopper with an upper opening and a lower opening, a weight sensor positioned on one side of the metering hopper and a movable door connected to the lower end of the metering hopper and used for closing the lower opening of the metering hopper;

the double-helix quantitative feeding unit comprises a large helix conveying assembly and a small helix conveying assembly;

the large spiral conveying assembly comprises a first conveying channel, a large rotary screw rod arranged in an inner cavity of the first conveying channel and a second motor connected to one side of the large rotary screw rod; the first conveying channel is also provided with a first channel inlet and a first channel outlet;

the small screw conveying assembly comprises a conveying channel II, a small rotating screw rod arranged in an inner cavity of the conveying channel II and a motor III connected to one side of the small rotating screw rod; the second conveying channel is also provided with a second channel inlet and a second channel outlet;

the first channel inlet and the second channel inlet are communicated with the storage hopper;

a large helical blade is arranged on the large rotating screw rod, and a small helical blade is arranged on the small rotating screw rod; the diameter of the large helical blade is larger than that of the small helical blade, and the pitch of the large helical blade is wider than that of the small helical blade;

the movable receiving mechanism comprises a sliding rail connected to the supporting frame and a movable hopper connected with the sliding rail in a sliding manner, and a movable door capable of being opened and closed is further arranged on the movable hopper.

Furthermore, a first blanking channel is arranged on one side of the first channel outlet and one side of the second channel outlet, and a first air cylinder and a second air cylinder are arranged on one side of the first blanking channel; the front end of the first air cylinder is connected with a first cut-off door for closing the first channel outlet; and the front end of the second cylinder is connected with a second cut-off door for closing the second channel outlet.

Furthermore, a cross-shaped stirring rod is arranged at one end of the small rotating screw rod facing the second channel outlet.

Further, the movable hopper comprises an upper hopper and a lower hopper connected below the upper hopper; the upper end and the lower end of the feeding hopper are respectively provided with a first upper opening and a first lower opening, and the upper end and the lower end of the discharging hopper are respectively provided with a second upper opening and a second lower opening; the height of the lowest end of the first lower opening is lower than that of the highest end of the second upper opening; the side of the lower end of the lower opening I is also provided with a first rotating shaft, the movable door of the movable hopper is a turnover door, one side of the turnover door is connected with the first rotating shaft, and one end of the first rotating shaft is also connected with a pneumatic device for driving the first rotating shaft to rotate.

Furthermore, the upper part of the feeding hopper is funnel-shaped, and the lower part of the feeding hopper is in a straight cylinder shape; the upper part of the discharging hopper is in a straight cylinder shape, and the lower part of the discharging hopper is in a funnel shape.

Furthermore, a sliding block capable of sliding along the upper end of the sliding rail is connected to the outer wall of the movable hopper, a sliding block driving part for driving the sliding block to slide along the sliding rail is further connected to one side of the sliding rail, and the sliding block driving part is a rodless cylinder or an electric cylinder; the pneumatic device is a turnover door cylinder, the turnover door cylinder is connected with the sliding block, and a piston rod at the front end of the turnover door cylinder is connected with the first rotating shaft through a first connecting rod.

Furthermore, the material pushing assembly comprises a first motor and a first rotating screw rod, and a first spiral belt is arranged on the first rotating screw rod.

Furthermore, the metering mechanism also comprises a first outer cover covering the weight sensor and positioned at the upper end of the supporting frame;

a first connecting bracket is arranged between the first outer cover and the measuring hopper; the first connecting bracket is connected with a rotating rod, and the rotating rod is hinged with the first connecting bracket; a second connecting rod is connected between the rotating rod and the movable door, the upper end of the second connecting rod is hinged with the rotating rod, and the lower end of the second connecting rod is fixedly connected with one end of the movable door; one end of the movable door close to the weight sensor is movably connected with the lower end of the measuring hopper;

the lower end of the elastic component is connected to the first connecting bracket, and the upper end of the elastic component is connected with the rotating rod; the rear end of the rotating rod is also provided with a movable door cylinder which can push the rotating rod to move towards the direction of the measuring hopper.

Further, the first motor, the second motor and the third motor are all variable frequency motors; the motor I, the motor II, the motor III, the weight sensor, the movable door cylinder, the pneumatic device and the slide block driving part are all connected with the PLC control system.

Further, still include the hopper, the hopper is located under the weighing hopper, just the hopper is located simultaneously the slide rail below.

(III) advantageous effects

Compared with the prior art, the utility model provides a friction material measures conveyor possesses following beneficial effect:

the utility model discloses in, connected at least one two spiral quantitative feed unit in the below of storage hopper, every two spiral quantitative feed unit contains a big spiral delivery module and a little spiral delivery module, and big spiral delivery module and little spiral delivery module are furnished with a inverter motor separately, can carry out actions such as automatic fast add, add slowly, stop according to the parameter of setting for.

The large rotating screw is provided with a large helical blade, and the small rotating screw is provided with a small helical blade; moreover, the diameter of the large helical blade is larger, the pitch of the large helical blade is wider, the diameter of the small helical blade is smaller, and the pitch of the small helical blade is also narrower; for each revolution of the screw, a volume of material between one pitch of the screw can be delivered. Under the same motor rotating speed, the large screw rotates for one circle, so that more materials are sent out from one screw pitch, and the large screw can be used for feeding a large amount of materials into the lower metering mechanism quickly in the early stage; the material among a pitch that little spiral rotation one circle was sent out is few, can be used to carry out the material of slow uniform velocity to the metering mechanism of below, ensures that the weighing value of follow-up metering mechanism reaches the target value of settlement and the error is less, guarantees the precision when the measurement.

In the little spiral delivery module, still be connected with a cross stirring rod at the tip of little rotatory screw rod, have the effect of breaing up the material, prevent that some materials from agglomerating appearing in little spiral export, a whole group drops, influences follow-up metering mechanism's measurement accuracy.

The large spiral conveying assembly comprises a first conveying channel, and the small spiral conveying assembly comprises a second conveying channel; one side of the first conveying channel is provided with a first channel outlet, and one side of the second conveying channel is provided with a second channel outlet; and a first cutting door and a second cutting door are respectively arranged on the side surfaces of the first channel outlet and the second channel outlet. When the large rotary screw stops rotating, the first cutting door can be used for closing the first channel outlet to prevent the materials in the first conveying channel from continuously leaking and falling to influence the subsequent metering precision; similarly, when the small rotary screw stops rotating, the second cutting door can be used for closing the second channel outlet, so that the situation that the materials in the second conveying channel continue to leak and fall to influence the subsequent metering precision is avoided.

And simultaneously, the utility model discloses pass through fixed all-in-one that forms of braced frame connection with quantitative feed mechanism, metering mechanism and removal receiving mechanism, and quantitative feed mechanism, metering mechanism and the removal receiving mechanism in this all can link to be connected into PLC control system, can accomplish material feed, material measurement in succession and will accomplish a plurality of steps such as the material after the weighing measurement is transferred to next processing station.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a top view of the movable receiving mechanism of the present invention.

Fig. 4 is a side view of the movable hopper with the side plates removed.

Fig. 5 is a schematic view of a connection structure between the first rotating shaft, the turnover door cylinder and the slider in the middle mobile receiving mechanism of the present invention.

Fig. 6 is a side view of the quantitative feeding mechanism of the present invention.

Fig. 7 is a right side view of fig. 6.

FIG. 8 isbase:Sub>A schematic view of the structure along the line A-A.

FIG. 9 is a schematic view of the structure from B-B direction.

FIG. 10 is a schematic view of the structure in the direction of C-C.

Fig. 11 is a left side view of the metering mechanism of the present invention.

Fig. 12 is a top view of the metering mechanism of the present invention.

In the figure:

100-slide rail, 101-slide block, 102-slide block driving component, 110-feeding hopper, 111-discharging hopper, 112-turnover door cylinder, 113-turnover door, 114-revolving shaft I, 115-connecting rod I, 116-notch and 117-shaft sleeve;

200-storage hopper, 201-spiral belt I, 202-rotary screw rod I, 203-motor I, 204-storage hopper blanking channel, 205-blanking port, 210-conveying channel I, 211-blanking channel I, 212-motor II, 213-cylinder I, 214-large rotary screw rod, 215-large spiral blade, 216-cutting gate I, 220-conveying channel II, 222-motor III, 223-cylinder II, 224-small rotary screw rod, 225-small spiral blade, 226-cutting gate II and 227-cross stirring rod;

300-support frame, 301-discharge hopper, 302-port, 310-metering hopper, 311-weight sensor, 312-movable door, 313-movable door cylinder, 314-spring I, 315-connecting bracket I, 316-connecting rod II, 317-rotating rod, 318-housing I, 319-transverse extension rod and 320-left side section.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-12, the utility model provides a friction material metering and conveying device, which comprises a supporting frame 300, a quantitative feeding mechanism, a metering mechanism and a movable receiving mechanism. The metering mechanism is connected to the upper end of the supporting frame 300, the quantitative feeding mechanism is positioned above the metering mechanism, and the movable material receiving mechanism is connected to the supporting frame 300 and positioned below the metering mechanism.

The support frame 300 plays a role of a frame for supporting connection, and the movable receiving mechanism is connected to the support frame 300 and positioned below the metering mechanism. After the metering mechanism finishes the weighing operation of the materials from the quantitative feeding mechanism, the metering mechanism discharges the materials downwards, and the discharged materials which accord with the preset weight are received by the movable material receiving mechanism and then transferred to the left side.

As shown in fig. 3, it is a top view of the movable receiving mechanism; fig. 4 and 5 are structural schematic diagrams of partial components of the movable material receiving mechanism. The movable material receiving mechanism in the embodiment comprises a linear slide rail 100, a slide block 101 connected with the upper end of the slide rail 100 in a sliding manner, a movable hopper connected to the slide block 101, and a slide block driving part 102 driving the slide block 101 to move back and forth along the slide rail 100; the movable hopper comprises an upper hopper 110 and a lower hopper 111 connected below the upper hopper 110; the upper end and the lower end of the upper hopper 110 are respectively provided with a first upper opening and a first lower opening, and the upper end and the lower end of the lower hopper 111 are respectively provided with a second upper opening and a second lower opening; the height of the lowest end of the first lower opening is lower than that of the highest end of the second upper opening; a first rotating shaft 114 is further arranged on the side of the lower end of the first lower opening, and a turnover door 113 capable of being turned over in the inner cavity of the lower hopper 111 is connected to the first rotating shaft 114; one end of the first rotating shaft 114 is also connected with a pneumatic device, namely a turnover door cylinder 112, for driving the rotating shaft to rotate.

In this embodiment, the slide rail 100 is a linear type, and includes two slide rails 100, and the two slide rails 100 are distributed in parallel. The upper ends of the two slide rails 100 are connected with a slide block 101, and the lower end of the slide block 101 is connected with the slide rails 100 in a sliding manner, so that the movable hopper connected to the slide block 101 can be driven to move back and forth along the two slide rails 100.

In this embodiment, the movable hopper penetrates through the upper surface of the slider 101, the movable hopper includes an upper hopper 110 and a lower hopper 111, which are respectively located above the upper hopper 110 and below the upper hopper 110, and the upper hopper 110 and the lower hopper 111 jointly form the movable hopper.

The upper end and the lower end of the upper hopper 110 are respectively provided with a first upper opening and a first lower opening (not marked in the drawing), the upper end and the lower end of the lower hopper 111 are respectively provided with a second upper opening and a second lower opening (not marked in the drawing), and in the moving feeding process, materials enter the upper hopper 110 from the first upper opening and downwards pass through the first lower opening and the second upper opening, and finally fall downwards from the second lower opening and are discharged. In this embodiment, for the movable hopper, the first upper opening is a feeding hole of the movable hopper, and the second lower opening is a discharging hole of the movable hopper.

In this embodiment, the first rotating shaft 114 is located at the lower end side of the upper bin 110, as shown in FIG. 4. Both ends of the first rotating shaft 114 are connected with the left and right side walls of the slider 101, as shown in fig. 5, the first rotating shaft 114 penetrates through the left and right side walls of the slider 101, and the left and right ends of the first rotating shaft 114 are further connected with a bushing 117 respectively, and the bushing 117 is located outside the slider 101.

Meanwhile, as shown in fig. 5, in this embodiment, one end of the first rotating shaft 114 is connected to the first connecting rod 115, the other end of the first connecting rod 115 is connected to the front end of the piston rod of the turnover door cylinder 112, and the rear end of the turnover door cylinder 112 is connected to the slider 101. When the piston rod of the turnover door cylinder 112 contracts backwards, the first connecting rod 115 is pushed, the first connecting rod 115 rotates to drive the first rotating shaft 114 connected with the first connecting rod to rotate, the first rotating shaft 114 rotates to drive the turnover door 113 to rotate, the turnover door 113 turns downwards by taking the first rotating shaft 114 as an axis, and one end of the turnover door 113 is far away from the first lower opening, so that the first lower opening is gradually opened, as shown in fig. 3. Accordingly, when the piston rod of the door-turning cylinder 112 extends forward, it can drive the door 113 to turn in the opposite direction, thereby closing the first lower opening.

In this embodiment, as shown in fig. 4, the movable hopper is of an up-down structure, the turnover door 113 is located at the lower end of the upper hopper 110, and meanwhile, since the first lower opening is smaller than the second upper opening, and the height of the lowest end of the first lower opening is lower than the height of the highest end of the first upper opening, the turnover door 113 is integrally disposed in the movable hopper, and the turnover door 113 is always movable in the movable hopper in the opening and closing processes. In order to leave a certain installation and movement space for the first rotating shaft 114 on one side, in this embodiment, the upper part of the upper hopper 110 is integrally funnel-shaped, and the lower part of the upper hopper 110 is integrally straight-barrel-shaped; in order to allow the turnover door 113 to be turned over with a sufficient space, the entire upper portion of the lower hopper 111 is formed in a straight cylindrical shape, and the entire lower portion of the lower hopper 111 is formed in a funnel shape. Meanwhile, a notch 116 is formed in the upper end of the lower hopper 111 and on one side of the first rotating shaft 114, the notch 116 has a certain height in the longitudinal direction, and the notch 116 is located at the connection position of the first rotating shaft 114 and the turnover door 113, which is beneficial to increasing the rotation amplitude of the turnover door 113.

The turnover door cylinder 112 is a pneumatic device for controlling the rotation of the first rotating shaft 114, and thus the turnover of the turnover door 113.

In this embodiment, the slider driving unit 102 may use a rodless cylinder or an electric cylinder for pushing the slider 101 to move linearly along the slide rail 100.

The movable material receiving mechanism in the embodiment can be used when the blanking point and the material receiving point are not on a vertical line, the movable hopper is driven by the sliding block 101 to be in a position below the blanking point along the sliding rail 100, the material falls into the movable hopper from top to bottom from the blanking point, and the turnover door 113 is in a closed state at the moment; then the movable hopper is driven by the slide block 101 to slide to the upper part of the receiving point along the slide rail 100, the turnover door 113 is opened, and the material falls from the upper hopper 110 to the lower hopper 111 and is finally discharged downwards from the second lower opening. When the materials are completely discharged, the turnover door 113 is turned over again and closed.

Because upset door 113 is whole to be arranged in inside the removal hopper, the in-process is opened in the upset, after the material falls to the lopsidedness from upset door 113, will directly shelter from by the inner wall of hopper 111 down in the in-process that drops, can not incline to reveal outside the removal hopper, and simultaneously, because hopper lower part is whole to be hopper-shaped down, the material that drops will be once more along the slope inner wall of hopper down towards the gathering of below central direction and down, reducible material is followed opening two and is unloaded the probability that the back splashes towards dispersion all around after the export.

Fig. 6-10 are schematic views of the structure associated with the metered feed mechanism. The quantitative feeding mechanism in the embodiment comprises a storage feeding mechanism and at least one double-helix quantitative feeding unit; the storage and supply mechanism comprises a storage hopper 200 with an upper opening and a lower opening, and the storage hopper 200 is also connected with a material pushing assembly which is used for scattering materials in the storage hopper 200 and pushing the materials towards the lower opening of the storage hopper 200.

The position of the quantitative feeding mechanism is fixed and is positioned above the metering mechanism. The position of the quantitative feeding mechanism is fixed, for example, by connecting the storage hopper 200 of the quantitative feeding mechanism with the support frame 300 through a connecting member. When the position of the quantitative feeding mechanism is fixed, the metering mechanism is fixedly connected to the upper end of the supporting frame 300 and positioned below the quantitative feeding mechanism, so that the relative position between the quantitative feeding mechanism and the metering mechanism is fixed.

In this embodiment, the material pushing assembly is used for scattering materials in the storage hopper 200 and pushing the materials towards the lower opening of the storage hopper 200, and includes a first motor 203 and a first rotating screw 202, where the first rotating screw 202 is provided with a first spiral belt 201. In this embodiment, the upper opening of the storage hopper 200 is a feed inlet, and the material enters the inner cavity of the storage hopper 200 from the feed inlet; the bottom of the storage hopper 200 is provided with two lower openings (blanking ports 205) for discharging the material out of the storage hopper 200, and in this embodiment, each lower opening is communicated with one storage hopper blanking channel 204.

In this embodiment, the first helical band 201 is composed of a plurality of helical blades, the rotational directions of the helical blades are sequentially distributed according to a left-handed, right-handed, left-handed, and right-handed structure, and when the first rotating screw 202 rotates, the first rotating screw can push the material towards two lower openings below the storage hopper 200 at the same time.

In this embodiment, the feeding device comprises two storage hopper discharging channels 204, and the lower end of each storage hopper discharging channel 204 is connected with a group of double-helix quantitative feeding units. That is, in this embodiment, two sets of double-screw quantitative feeding units are included below the storage hopper 200, and each set of double-screw quantitative feeding units includes a large screw conveying component and a small screw conveying component.

In this embodiment, the large spiral conveying assembly includes a first conveying channel 210, a large rotary screw 214 disposed in an inner cavity of the first conveying channel 210, and a second motor 212 connected to one side of the large rotary screw 214, and the large spiral screw 214 is provided with a large spiral blade 215, as shown in fig. 9; as shown in fig. 9, a first channel inlet is further disposed at the upper end of the right side of the first conveying channel 210, a first channel outlet (not labeled in the drawing) is further disposed at the left end of the first conveying channel 210, the first channel inlet is communicated with the first storage hopper discharging channel 204, the upper end of the first storage hopper discharging channel 204 is connected with the lower end of the storage hopper 200 and is communicated with the inner cavity of the storage hopper 200, and the lower end of the first storage hopper discharging channel 204 is connected with the upper end of the first conveying channel 210 and is communicated with the inner cavity of the first conveying channel 210. Material is pushed from the storage hopper 200 through the storage hopper feed channel 204 to the first channel inlet and from there into the first transfer channel 210.

In this embodiment, the small screw conveying assembly includes a second conveying channel 220, a small rotary screw 224 disposed in an inner cavity of the second conveying channel 220, and a third motor 222 connected to one side of the small rotary screw 224, as shown in fig. 10, a small helical blade 225 is disposed on the small rotary screw 224; as shown in fig. 10, a second channel inlet is further disposed at the upper end of the right side of the second conveying channel 220, a second channel outlet (not labeled in the drawing) is further disposed at the left end of the second conveying channel 220, the second channel inlet is communicated with the second storage hopper discharging channel 204, the upper end of the second storage hopper discharging channel 204 is connected with the lower end of the storage hopper 200 and is communicated with the inner cavity of the storage hopper 200, and the lower end of the second storage hopper discharging channel 204 is connected with the upper end of the second conveying channel 220 and is communicated with the inner cavity of the second conveying channel 220. The material is pushed from the storage hopper 200 through the storage hopper feed channel 204 to the second channel inlet, and from the second channel inlet into the second transfer channel 220.

As shown in fig. 8, 9 and 10, in the same set of double-screw quantitative feeding units, the first conveying path 210 and the second conveying path 220 are both in the shape of transversely extending circular tubes, and the tube diameter of the first conveying path 210 is larger than that of the second conveying path 220. The large screw blade 215 has a diameter larger than that of the small screw blade 225, and the pitch of the large screw blade 215 is wider than that of the small screw blade 225. In the same rotation, the larger helical blade 215 can push a larger volume of material between one pitch to the first channel outlet, and the smaller helical blade 225 can push a smaller volume of material between one pitch to the second channel outlet.

The large spiral conveying assembly can be used for carrying out a large amount of rapid feeding and feeding operations, and the feeding speed is ensured. The small spiral conveying assembly can be used for slowly and uniformly feeding and feeding, the feeding value reaches a set target value, and the error is small. When a large amount of material is fed, the large rotation screw 214 and the small rotation screw 224 are both operated at high speed, and when the set measurement value is approached, the large rotation screw 214 stops operating, the small rotation screw 224 operates at low speed, and the material is slowly fed into the measuring mechanism, so that the requirements of both speed and accuracy can be satisfied.

In this embodiment, still be equipped with cross stirring rod 227 on the tip that little rotatory screw rod 224 is close to channel outlet two, this cross stirring rod 227 has the effect of breaing up the material, prevents that some materials are in the form of a group and appear at channel outlet two, and a whole group falls from channel outlet two, influences follow-up metering mechanism's measurement accuracy.

As shown in fig. 9 and 10, a first blanking channel 211 is further provided outside the first channel outlet and the second channel outlet, and a first cylinder 213 and a second cylinder 223 are connected to the first blanking channel 211; the front end of a piston rod of the first air cylinder 213 is connected with a first cut-off door 216, and the first cut-off door 216 is arranged on the outer side of the first channel outlet; the front end of a piston rod of the second air cylinder 223 is connected with a second cut-off door 226, and the second cut-off door 226 is arranged on the outer side of the second channel outlet; after the piston rod of the cylinder one 213 is extended, the cut-off door one 216 moves towards the channel outlet one and finally closes the channel outlet one, so that the purpose of closing the channel outlet one is achieved. Similarly, after the piston rod of the second cylinder 223 is extended, the second cut-off door 226 moves towards the second channel outlet and finally closes the second channel outlet, so as to close the second channel outlet. The materials are pushed by the double-helix quantitative feeding unit to enter the first blanking channel 211, fall downwards through the first blanking channel 211, are unloaded into the weighing hopper 310 positioned right below the first blanking channel 211, and enter the next weighing and metering link.

Fig. 11 and 12 are schematic views of the structure relating to the metering mechanism. In this embodiment, the metering mechanism includes a weighing hopper 310, a weight sensor 311, and a movable door 312; the weight sensor 311 is positioned on one side of the weighing hopper 310, and the weight sensor 311 is connected with the weighing hopper 310 through a first connecting bracket 315; the upper end and the lower end of the weighing hopper 310 are communicated, and the upper port of the weighing hopper 310 is positioned right below the first blanking channel 211.

As shown in fig. 12, the movable door 312 is hinged to the left and right side walls of the lower end of the weighing hopper 310, a second connecting rod 316 is further connected to one end of the movable door 312 facing the weight sensor 311, a rotating rod 317 is connected to the upper end of the second connecting rod 316, and the rotating rod 317 is connected to the first connecting bracket 315.

As shown in fig. 12, the rotating rod 317 is U-shaped as a whole in a top view, and includes three portions, namely, a middle portion located in the middle, a left side portion 320 and a right side portion located on the left and right sides of the middle portion; the middle section of the rotating rod 317 is positioned at the front side of the movable door cylinder 313, and the left side section 320 and the right side section are respectively hinged with the first connecting bracket 315; the lower end of the second connecting rod 316 is fixedly connected with the movable door 312, and the upper end of the second connecting rod 316 is hinged with the lower end of the left section 320. As shown in fig. 11, the spring 314 is located to the left of the left segment of the rotating bar 317 (i.e., to the left of the left segment 320); the upper end of the spring 314 is connected to the upper end of the left side section 320 by a transversely extending rod 319, the transversely extending rod 319 being located between the left side section 320 and the upper end of the spring 314 as shown in fig. 12.

When the piston rod of the movable door cylinder 313 extends forwards, the piston rod of the movable door cylinder 313 pushes the middle section of the rotating rod 317 forwards, the middle section of the rotating rod 317 moves towards the measuring hopper 310, the left-hand rotating section 320 drives the upper end of the second connecting rod 316 to be pulled upwards and rotate, the movable door 312 is driven to rotate towards one side of the weight sensor 311 to be separated from the lower port of the measuring hopper 310, so that the lower port of the measuring hopper 310 is opened, and the material can be dumped out. When the piston rod of the movable door cylinder 313 retracts backwards, the spring 314 contracts, the rotating rod 317 drives the second connecting rod 316 to reset and move, the movable door 312 resets and moves, and the lower port of the weighing hopper 310 is closed.

In order to protect the weight sensor 311, in the embodiment, a first outer cover 318 is further provided on the periphery of the weight sensor 311; the lower end of the first housing 318 is connected with the upper end of the support frame 300, the front end of the first connecting bracket 315 is connected with the weighing hopper 310, and the rear end of the front end of the first connecting bracket 315 is fixedly connected with the front end of the first housing 318. Through the above structure design, the weighing hopper 310 is supported above the supporting frame 300 and below the first blanking channel 211. Of course, the first connecting bracket 315 may also be connected directly to the upper end of the support frame 300 to support the weighing hopper 310 above the support frame 300.

In this embodiment, the material discharging device further comprises a material discharging hopper 301, the material discharging hopper 301 is located under the measuring hopper 310, the material discharging hopper 301 is located under the slide rail 100, and a through opening 302 is arranged under the measuring hopper 310 at the upper end of the supporting frame 300. When the weight of the material in the measuring hopper 310 does not meet the requirement, the movable door 312 is opened, the material is discharged downwards and directly falls into the discharge hopper 301 downwards through the through opening 302; or the movable hopper moves rightwards to the positions above the discharge hopper 301 and below the metering hopper 310, materials with unsatisfactory weight are firstly discharged into the movable hopper, then the turnover door 113 is opened, and the materials are directly discharged into the discharge hopper 301 right below from the movable hopper downwards.

If the weight of the materials in the weighing hopper 310 meets the requirement, the movable hopper moves to the position right below the weighing hopper 310 to receive the materials, then slides along the lower left side of the sliding rail 100, and after the movable hopper slides to a left designated position, the turnover door 113 is opened, so that the materials can be discharged into a material receiving container of another process positioned below the turnover door. Therefore, the operation of multiple steps of material crushing, feeding, metering and weighing, material transferring after metering and weighing and the like is realized.

In this embodiment, the first motor 203, the second motor 212 and the third motor 222 are all variable frequency motors, and the rotating speed of the motors can be adjusted according to set parameters, so as to control the feeding speed of the whole feeding mechanism. The motor I203, the motor II 212, the motor III 222, the weight sensor 311, the movable door cylinder 313, the pneumatic device and the slide block driving part are all connected with the PLC control system, weight conversion is carried out through the intelligent instrument, information is transmitted to the PLC control system, and therefore operation cooperation among all mechanisms can be well achieved.

Claims (10)

1. A friction material metering and conveying device is characterized in that: the quantitative feeding device comprises a supporting frame (300), a quantitative feeding mechanism, a metering mechanism and a movable material receiving mechanism, wherein the metering mechanism is positioned at the upper end of the supporting frame (300) below the quantitative feeding mechanism;

the quantitative feeding mechanism comprises a storage feeding unit and at least one double-helix quantitative feeding unit; the material storage and supply unit comprises a material storage hopper (200) with an upper opening and a lower opening, and the material storage hopper (200) is also connected with a material pushing assembly for pushing materials in the material storage hopper (200) towards the inner lower opening of the material storage hopper (200);

the metering mechanism comprises a metering hopper (310) with an upper opening and a lower opening, a weight sensor (311) positioned on one side of the metering hopper (310) and a movable door (312) connected to the lower end of the metering hopper (310) and used for closing the lower opening of the metering hopper (310);

the double-helix quantitative feeding unit comprises a large helix conveying assembly and a small helix conveying assembly;

the large spiral conveying assembly comprises a first conveying channel (210), a large rotary screw (214) arranged in the inner cavity of the first conveying channel (210), and a second motor (212) connected to one side of the large rotary screw (214); the first conveying channel (210) is also provided with a first channel inlet and a first channel outlet;

the small screw conveying assembly comprises a second conveying channel (220), a small rotating screw (224) arranged in the inner cavity of the second conveying channel (220), and a third motor (222) connected to one side of the small rotating screw (224); a second channel inlet and a second channel outlet are also formed in the second conveying channel (220);

the first channel inlet and the second channel inlet are both communicated with the storage hopper (200);

a large helical blade (215) is arranged on the large rotating screw (214), and a small helical blade (225) is arranged on the small rotating screw (224); the diameter of the big helical blade (215) is larger than that of the small helical blade (225), and the pitch of the big helical blade (215) is wider than that of the small helical blade (225);

the movable material receiving mechanism comprises a sliding rail (100) connected to the supporting frame (300) and a movable hopper slidably connected with the sliding rail (100), and a movable hopper door capable of being opened and closed is further arranged on the movable hopper.

2. A friction material metering device as set forth in claim 1 wherein: a first blanking channel (211) is further arranged on one side of the first channel outlet and the second channel outlet, and a first cylinder (213) and a second cylinder (223) are further arranged on one side of the first blanking channel (211); a first cut-off door (216) for closing the first channel outlet is connected to the front end of the first air cylinder (213); and the front end of the second air cylinder (223) is connected with a second cut-off door (226) for closing the second channel outlet.

3. A friction material metering device as claimed in claim 2 wherein: and a cross-shaped stirring rod (227) is arranged at one end of the small rotary screw rod (224) facing the second channel outlet.

4. A friction material metering device as claimed in any one of claims 1 to 3 wherein: the movable hopper comprises an upper hopper (110) and a lower hopper (111) connected below the upper hopper (110); an upper opening I and a lower opening I are respectively arranged at the upper end and the lower end of the upper hopper (110), and an upper opening II and a lower opening II are respectively arranged at the upper end and the lower end of the lower hopper (111); the height of the lowest end of the first lower opening is lower than that of the highest end of the second upper opening; the lower end edge side of the lower opening I is further provided with a first rotating shaft (114), the movable hopper door is a turnover door (113), one side of the turnover door (113) is connected with the first rotating shaft (114), and one end of the first rotating shaft (114) is further connected with a pneumatic device for driving the first rotating shaft (114) to rotate.

5. A friction material metering device as set forth in claim 4 wherein: the upper part of the upper hopper (110) is funnel-shaped, and the lower part of the upper hopper (110) is in a straight cylinder shape; the upper part of the lower hopper (111) is in a straight cylinder shape, and the lower part of the lower hopper (111) is in a funnel shape.

6. A friction material metering device as set forth in claim 5 wherein: the outer wall of the movable hopper is connected with a sliding block (101) capable of sliding along the upper end of a sliding rail (100), one side of the sliding rail (100) is further connected with a sliding block driving part for driving the sliding block (101) to slide along the sliding rail (100), and the sliding block driving part is a rodless cylinder or an electric cylinder; the pneumatic device is a turnover door cylinder (112), the turnover door cylinder (112) is connected with the sliding block (101), and a piston rod at the front end of the turnover door cylinder (112) is connected with a first rotating shaft (114) through a first connecting rod (115).

7. A friction material metering device as set forth in claim 6 wherein: the material pushing assembly comprises a first motor (203) and a first rotating screw rod (202), and a first spiral belt (201) is arranged on the first rotating screw rod (202).

8. A friction material metering device as claimed in claim 7 wherein: the metering mechanism further comprises a first outer cover (318) which covers the weight sensor (311) and is positioned at the upper end of the support frame (300);

a first connecting bracket (315) is arranged between the first outer cover (318) and the measuring hopper (310); a rotating rod (317) is connected to the first connecting bracket (315), and the rotating rod (317) is hinged to the first connecting bracket (315); a second connecting rod (316) is further connected between the rotating rod (317) and the movable door (312), the upper end of the second connecting rod (316) is hinged to the rotating rod (317), and the lower end of the second connecting rod (316) is fixedly connected with one end of the movable door (312); one end of the movable door (312) close to the weight sensor (311) is movably connected with the lower end of the measuring hopper (310);

the lower end of the elastic component is connected to the first connecting bracket (315), and the upper end of the elastic component is connected with the rotating rod (317); the rear end of the rotating rod (317) is also provided with a movable door cylinder (313) which can push the rotating rod (317) to move towards the measuring hopper (310).

9. A friction material metering device as set forth in claim 8 wherein: the motor I (203), the motor II (212) and the motor III (222) are all variable frequency motors; the motor I (203), the motor II (212), the motor III (222), the weight sensor (311), the movable door cylinder (313), the pneumatic device and the sliding block driving part are all connected with the PLC control system.

10. A friction material metering device as set forth in claim 9 wherein: still include hopper (301), hopper (301) are located under weighing hopper (310), just hopper (301) are located simultaneously slide rail (100) below.

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