CN211768363U - Material conveying device with spiral shaft spreading mechanism - Google Patents

Abstract

A material conveying device with a screw shaft material spreading mechanism, comprising a platform for providing flat material and propelling material; the platform includes at least two or more sets of grid bars stacked alternately to form a stack of bars A push-type material conveying platform; each adjacent grid of the same group is separated by a gasket, and the thickness of the gasket is greater than that of the other group of grids, thereby forming a ventilation gap; the A screw shaft spreading mechanism is arranged above the start end of the platform; the screw shaft spreading mechanism includes a screw shaft; the screw shaft is placed above the start end of the platform, and the screw shaft has a feeding end and an end, so The rotating motion of the screw shaft causes the material to spread from the feed end of the screw shaft to the end, and spread to the platform position at the bottom of the screw shaft. The utility model does not need to set a crushing, granulating or bar making machine at the feeding port of the drying equipment, reduces equipment investment and saves costs.

Description

A material conveying device with a screw shaft spreading mechanism

【Technical field】

The utility model belongs to the technical field of material drying equipment, in particular to a material conveying device with a screw shaft material spreading mechanism.

【Background technique】

Material drying equipment is widely used in the drying process of chemical, food, medicine, building materials and other industries. In the field of sludge treatment, the mud cake produced by the sludge dewatering machine, after being crushed, granulated or made into strips, falls freely onto the mesh crawler belt, and is conveyed by the multi-layer reciprocating mesh belt. The moisture gradually evaporates, and finally the material with lower moisture content is discharged.

Chinese invention patent 201810369116.0 discloses a return air circulation heating and drying device, and Chinese invention patent 201810953665.2 discloses a closed belt dryer. The material conveying devices in these two patent documents all use conveyor belts to convey materials, wherein the conveyor belt is Mesh belt.

Such drying equipment in the prior art has the following disadvantages: 1. The drying efficiency of mud cakes with high moisture content that cannot be formed is extremely low. 2. After the mud cake falls on the mesh belt, it cannot be spread evenly in a short time, and it often accumulates together, and even blocks the ventilation mesh of the filter screen on the mesh belt, which affects the effect of ventilation and evaporation. 3. During the conveying process, the shape of the mud cake will not change, the moisture inside the mud mass cannot be discharged, and the mud mass at the bottom cannot always be in contact with the hot air during a conveying process, resulting in insufficient uniform evaporation. 4. In order to form a ventilation gap between the mud cakes and increase the evaporation area of the material, it is often necessary to set a granulator, a crusher or a bar making machine at the feeding port of the drying equipment, thus increasing the equipment investment cost.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a material conveying device with a screw shaft spreading mechanism, which does not require crushing, granulating or sliver making machines at the feeding port of the drying equipment, reduces equipment investment and saves costs.

The utility model is realized in this way:

A material conveying device with a screw shaft material spreading mechanism, comprising a platform for providing flat material and propelling material; the platform includes at least two or more sets of grid bars stacked alternately to form a stack of bars A push-type material conveying platform; each adjacent grid bar of the same group is separated by a gasket, and the thickness of the gasket is greater than that of the other group of grid bars, thereby forming a ventilation gap;

Among them, at least one group of grid bars is an active grid bar, and relative displacement is generated with respect to another adjacent group of grid bars to ensure that each group of movable grid bars performs reciprocating motion;

The movable grid bars of each group are provided with two or more series connection holes at the front and rear balance positions; the movable grid bars of each group are connected to the connected to form a movable body; each movable body, through a first driving device, guides and drives all the movable grid bars of the group to produce the same motion trajectory;

Above the start end of the platform is a screw shaft spreading mechanism; the screw shaft spreading mechanism includes a screw shaft; the screw shaft is placed above the start end of the platform, and the screw shaft has a feeding end and an end , the rotating motion of the screw shaft makes the material spread from the feed end of the screw shaft to the end, and spread to the platform position at the bottom of the screw shaft.

Further, the screw shaft is a two-way screw shaft, that is, the feed end of the screw shaft is located in the middle of the screw shaft, and the end of the screw shaft is located at both ends of the screw shaft; the rotational motion of the two-way screw shaft The material is spread from the middle to both ends by the bidirectional helical shaft, and flatly spreads to the platform position at the bottom of the bidirectional helical shaft.

Further, the two screw shafts are arranged side by side, the screw shaft close to the material conveying direction is the first screw shaft, and the screw shaft close to the beginning of the platform is the second screw shaft;

The rotation directions of the first helical shaft and the second helical shaft are opposite;

The rotating motion of the two screw shafts causes the material to be swallowed and broken by the two screw shafts, spread from the feed end of the screw shafts to the end of the screw shafts, and spread to the two screw shafts. the bottom of the platform position.

Further, the blade part on the upper part of the second screw shaft moves toward the material conveying direction; the second screw shaft is provided with a material blocking unit on the side near the start end of the platform to prevent the material from being pushed out of the start end of the platform fall.

Further, the material blocking unit tilts the start end of the platform upwards and surrounds the side of the second screw shaft close to the start end of the platform to prevent the material from being pushed out of the start end of the platform and falling.

Further, in the material blocking unit, a blocking plate is arranged on the side of the second screw shaft close to the start end of the platform to prevent the material from being pushed out of the start end of the platform and falling.

Further, in the stopper unit, a third screw shaft is arranged side by side on the side of the second screw shaft close to the start end of the platform, and the rotation direction of the third screw shaft is the same as that of the first screw shaft. The direction of rotation is the same.

Further, the screw shaft material spreading mechanism also includes a material limiting unit;

The material limiting unit includes a cover plate and a side plate; the cover plate covers the upper part of the screw shaft to restrict the material from rolling out from above the screw shaft; the side plate is arranged at the end of the screw shaft , restricting the material being pushed out to the end of the screw shaft and falling from the side of the platform;

The material limiting unit is provided with a feeding port, and the feeding port corresponds to the position of the feeding end of the screw shaft and is used for feeding.

Further, the feed port is connected to a material conveying pump for one-way conveying.

Further, a feeding unit is provided at the feeding port, and the feeding unit includes a feeding hopper, a rotating shaft and a stirring module arranged on the rotating shaft;

The feeding hopper is arranged above the feeding port; the middle part of the stirring module is empty, which is close to the side wall of the feeding hopper; the stirring module is rotated under the driving of the rotating shaft to prevent The materials are piled up, the materials are stirred and cut, and the materials are pushed to the bottom of the feeding port in time.

Further, a material rolling device is provided above the platform on the side of the screw shaft material spreading mechanism towards the material conveying direction. Reciprocating motion at a certain angle, so as to perform rolling, smoothing, squeezing, shearing and scraping actions on the materials on the platform.

Further, the angle is 90°.

Further, the first driving device includes: a set of driving central shafts, a set of guide grid bars, and a set of driving mechanisms;

The group of driving central shafts includes at least two driving central shafts;

The group of guide grid bars includes at least two guide grid bars, which are located at the left and right balance positions of the stacked bar push-type material conveying platform; at least two first guide grid bars are provided on each of the guide grid bars. The eccentric device is located at the position of the front and rear balance of the material conveying platform, and the first eccentric device corresponding to the left and right on the set of guide grids is provided with a drive center shaft; the set of guide bars The eccentric directions and eccentric distances of the first eccentric devices on the grid bars are consistent; at least two fixing holes are provided on each of the guide grid bars, which are in the same position as the series connection holes on the movable grid bars; The fixed holes on the guide grid bars and the series connection holes of the movable grid bars are fixedly connected in series through the same series connection rod;

The group of drive mechanisms includes a first drive motor and a first transmission mechanism, or a plurality of first drive motors;

The set of drive mechanisms drives the set of drive central shafts to achieve the same steering and rotational speed; the set of drive mechanisms drives the set of drive central shafts to move synchronously, respectively driving the set of guide shafts sleeved thereon The grid bars move, and the group of guide grid bars drives the group of movable grid bars connected thereto to move with the same motion track.

Further, the second driving device includes: a set of rolling drive central shafts, at least one rolling guide plate, and a set of rolling device driving mechanisms;

The group of rolling and driving central shafts includes at least two rolling and driving central shafts; the group of rolling and driving central shafts are fixed by at least one fixing plate;

Each of the rolling guide plates is provided with at least two second eccentric devices, and one of the rolling driving central shafts is inserted through each second eccentric device;

The set of driving mechanisms of the rolling device includes at least two gear steering mechanisms, the first output end of each gear steering mechanism passes through the rolling drive central shaft, and the second output end of each gear steering mechanism passes through the drive The central axis;

The driving central shaft drives the rolling drive central shaft to rotate through the gear steering mechanism, and the rolling driving central shaft drives the rolling guide plate to move through the second eccentric device, and the rolling guide The moving direction of the moving plate is at a certain angle with the moving direction of the platform, so that the rolling guide moving plate performs rolling, smoothing, squeezing, shearing and scraping actions on the material on the platform.

Further, the second driving device includes: a set of rolling drive central shafts, at least one set of rolling guide plates, and a set of rolling device driving mechanisms;

The group of rolling and driving central shafts includes at least two rolling and driving central shafts; the group of rolling and driving central shafts are fixed by at least one fixing plate;

The group of rolling guide plates includes at least two rolling guide plates, and each rolling guide plate is provided with at least two second eccentric devices, and each second eccentric device penetrates through the inside of the guide plate. A central axis of the rolling drive is provided;

The set of driving mechanisms of the rolling device includes at least two gear steering mechanisms, the first output end of each gear steering mechanism passes through the rolling drive central shaft, and the second output end of each gear steering mechanism passes through the drive The central axis;

The driving central shaft drives the rolling drive central shaft to rotate through the gear steering mechanism, and the rolling driving central shaft drives the group of rolling guide plates to move through the second eccentric device, and the one The movement direction of the group of rolling guide plates is at a certain angle with the movement direction of the platform, and the group of rolling guide plates is also fixedly connected to a rolling module, and the rolling module is in the group of rolling guides. Driven by the moving plate, the materials on the platform are rolled, smoothed, squeezed, sheared and scraped.

Further, the group of rolling device driving mechanisms includes a second driving motor and a second transmission mechanism; the second driving motor and the second transmission mechanism drive the group of rolling driving central shafts to rotate, thereby driving the rolling guide plate moves;

Alternatively, the group of driving mechanisms of the rolling device includes a plurality of second driving motors; each of the second driving motors drives one of the rolling driving central shafts to rotate, thereby driving the rolling guide plate to move.

Further, the rolling guide plates are arranged in multiple groups at intervals, and the rolling modules are arranged at intervals in multiple groups, so that the materials can be rolled and smoothed during the conveying process of the platform. , extrusion, shearing, scraping, and can ensure smooth ventilation above the material.

Further, a lower platform is also arranged below the platform, and the lower platform corresponds to the platform located above, and also includes at least two or more sets of grid bars stacked alternately; There is a gap between them; each group of movable grid bars of the platform located on the upper layer is connected to the movable grid bars on both sides of the platform or a plurality of balanced and distributed lower guiding and movable connecting bars arranged on the movable grid bars or guiding grid bars on both sides of the platform. A group of movable grid bars of the lower platform, so that each group of movable grid bars of the lower platform performs the same trajectory motion corresponding to a group of movable grid bars of the upper platform.

The advantages of the utility model are as follows: 1. During the material conveying process, the interactive grid bars create transparent gaps, which improves the fluidity of the air and is beneficial to the drying of the material. 2. During the material conveying process, the evaporation area of the material can be increased by lifting, flattening, shearing, scraping and other actions, so that the drying can be carried out more efficiently, and it is also suitable for materials with high moisture content that cannot be formed. 3. The material can be smoothly dropped from the ventilation slit to the lower platform, effectively increasing the evaporation area. 4. The screw shaft spreading mechanism makes the material spread evenly on the platform before conveying. For the agglomerated material, it will also be broken and spread evenly. There is no need to set up a crushing, granulating or bar making machine at the feeding port of the drying equipment. Reduce equipment investment and save costs.

【Description of drawings】

The present utility model will be further described below with reference to the accompanying drawings and embodiments.

FIG. 1 is a schematic diagram of the grid structure in the present invention.

FIG. 2 is a schematic view of the structure of the guide grid bar in the present invention.

Fig. 3 is a schematic diagram of a partial three-dimensional explosion structure of the stacked strip push-type material conveying device of the present invention.

FIG. 4 is a schematic diagram of a partial combined structure of the stacked strip push-type material conveying device in the present invention.

FIG. 5 is a schematic diagram of the overall structure of the stacking push-type material conveying device in the present invention.

FIG. 6 is a side view of the stacking push-type material conveying device in the present invention.

FIG. 7 is a schematic structural diagram of a dual platform used in the present invention.

8 is a schematic structural diagram of a material conveying device with a material rolling device in the present invention.

FIG. 9 is a side view of the material conveying device with the material rolling device in the present invention.

Fig. 10 is a schematic structural diagram of the fixing plate of the material rolling device in the present invention being fixed on the fixing support frame.

Figure 11 is a schematic structural diagram of the rolling guide plate of the material rolling device in the present invention.

Figure 12 is a schematic diagram of the positional relationship between the driving central axis and the rolling driving central axis in the present invention.

13 is a schematic structural diagram of a single screw shaft in the first embodiment of the screw shaft spreading mechanism of the present invention.

14 is a schematic structural diagram of the first embodiment of the screw shaft spreading mechanism in the present invention.

15 is a schematic diagram of the exploded structure of the first embodiment of the screw shaft spreading mechanism in the present invention.

Fig. 16 is a schematic view of the structure of double helical shafts in the second embodiment of the helical shaft spreading mechanism of the present invention.

17 is a schematic structural diagram of the second embodiment of the screw shaft spreading mechanism in the present invention.

18 is a schematic diagram of the exploded structure of the second embodiment of the screw shaft spreading mechanism in the present invention.

19 is a schematic structural diagram of the third embodiment of the screw shaft spreading mechanism in the present invention.

20 is a schematic diagram of the exploded structure of the third embodiment of the screw shaft spreading mechanism in the present invention.

Fig. 21 is a schematic structural diagram of three helical shafts in the fourth embodiment of the helical shaft spreading mechanism of the present invention.

Figure 22 is a schematic structural diagram of the fourth embodiment of the screw shaft spreading mechanism in the present invention.

Fig. 23 is a schematic diagram of the exploded structure of the fourth embodiment of the screw shaft spreading mechanism of the present invention.

Figure 24 is a schematic structural diagram of the fifth embodiment of the screw shaft spreading mechanism in the present invention.

Figure 25 is a schematic diagram of the exploded structure of the fifth embodiment of the screw shaft spreading mechanism of the present invention.

【Detailed ways】

As shown in FIG. 1 to FIG. 6 , a laminated push-type material conveying device 3 suitable for use in drying chamber 1 in drying equipment includes two sets of grid bars 31 stacked alternately to form a laminated push-type material conveying platform 100.

The two groups of grid bars 31 are all movable grid bars, and adjacent grid bars are displaced up and down, back and forth, to ensure that the same group of movable grid bars perform reciprocating motion with the same motion track.

Each movable grid bar 31 is provided with three series connection holes 311 balanced in the front and rear. All the movable grid bars 31 of the group are guided and driven by a driving device 32 to produce the same motion trajectory. A gap is formed between each adjacent grid bar 31 of the same group of grid bars by a spacer 313, the spacer 313 is arranged on the series connection rod 312, and the thickness of the spacer 313 is greater than that of the other group of grid bars.

The driving device 32 includes a driving motor 321 , a chain 331 , two sprockets 332 , two driving central shafts 322 , and two guiding grids 323 .

The drive motor 321 is provided outside the drying chamber 1 . Each sprocket 332 is provided at one end of a drive center shaft 322 . A chain 331 is respectively wound around two sprockets 332 located on one side of a set of driving central shafts 322, as a transmission between a set of driving central shafts 322.

The two driving center shafts 322 are disposed at the front and rear symmetrical ends of the stacking push-type material conveying platform 100 .

The two guide grids 323 are arranged on the left and right symmetrical ends of the laminated push-type material conveying platform 100 . There are two eccentric bearings 3231, three fixing holes 3232, and two escaping holes 3233 on each guide grid bar 323 at the position of front and rear balance.

The two ends of the driving center shaft 322 are respectively sleeved on the left and right corresponding eccentric bearings 3231 on the two guide grid bars 323; Tandem rod 312 .

Group A movable grid bars 31 (multiple) are driven by group A guide grid bars 323 (two) to reciprocate upward, forward, downward, backward and upward. Group B movable grid bars 31 (multiple) are driven by group B guide grid bars 323 (two) to reciprocate upward, forward, downward, backward and upward. The two groups of movable grid bars 31 A and B perform staggered motion.

A group of movable grid bars A31 and B group of movable grid bars B31 share a set of driving central shaft 322, and the difference in eccentric direction of the eccentric bearing 3231 sleeved on the driving central shaft 322 causes the two groups of movable grid bars A31 and B31 to produce staggered motion .

The driving motor 321 drives the two driving central shafts 323 through a chain 331 and two sprockets 332, and makes the two driving central shafts 323 move synchronously, respectively driving the guide grid bars 323 passing through them and driving the group of movable grids. The bar 31 moves with the same motion trajectory. In addition, in practice, the transmission mode between the two driving central shafts 323 can be not only through sprocket transmission, but also through gear transmission, or other transmission modes.

It should be noted that, in large-scale equipment, the length of the movable grid bars 31 is relatively long, so each movable grid bar 31 needs to be fixed and spliced by a plurality of segment grid bars.

In practice, the grids of group A can also reciprocate upwards, forwards, downwards, backwards, and upwards to convey materials, and the grids of group B can be used to move up, left, down, right, etc. The upward reciprocating motion is used to scrape the material from the side walls of the grid. It can also be used for the reciprocating motion of group A grid bars upward, forward, downward, backward and upward for material conveying, while group B grid bars are fixed.

In addition, a lower platform 200 with the same structure as the platform 100 may be further arranged below the platform 100 formed by the stacking push-type material conveying device 3 . Please refer to FIG. 7 , on the upper platform 100, the movable grid bars of the group A located on the left and right outermost sides are respectively provided with two lower guide connecting bars 38 connected to the movable grid bars at the corresponding positions of the lower platform 200, The grid bars of the B groups are arranged in the same way, so that each group of movable grid bars on the upper platform 100 drives the corresponding group of movable grid bars on the lower platform 200 to perform the same trajectory motion.

The advantage of setting the lower platform 200 is that a part of the material falls from the gap of the upper platform 100 to the lower platform 200 and can continue to be transported, which is equivalent to expanding the upper platform 100 and increases the evaporation area of the material, which is beneficial to the drying of the material. .

The stacked push-type material conveying platform 100 operates in both forward and reverse directions, wherein the distance of forward operation is greater than the distance of reverse operation, so that the material can be smoothly transported from the beginning to the end, and the conveying speed of the material can be controlled.

As shown in FIGS. 8 to 11 , the platform 100 of the material conveying device 3 is also provided with a material rolling device, which is driven by a driving device 4 to reciprocate at 90° with the advancing direction of the material , so as to roll, smooth, squeeze, cut and scrape the materials on the platform.

The driving device 4 includes: a set of rolling drive central shaft 41, two rolling guide plates 42, and a set of rolling device driving mechanism 43;

A set of rolling drive central shafts (not shown), including two rolling driving central shafts; the set of rolling driving central shafts are fixed by two fixing plates 411; the two fixing plates 411 are fixed on the fixed support On the rack 14 , the fixed support rack 14 is fixed in the drying chamber 1 .

The rolling guide plate 42 is provided with at least two eccentric devices 421, and each first eccentric device 421 passes through a rolling driving center shaft;

A set of rolling device driving mechanisms 43 includes two gear steering mechanisms 431. The first output end of the gear steering mechanisms 431 is provided with the rolling drive central shaft, and the second output end is provided with the driving central shaft 322.

The rolling driving central axis and the driving central axis 322 are at 90°.

The driving central shaft 322 drives the rolling driving central shaft to rotate through the gear steering mechanism 431, and the rolling driving central shaft drives the rolling guide plate 42 to move through the eccentric device 421. The movement direction of the rolling guide plate 42 is in the same direction as that of the platform. 90°, a rolling module 421 is fixedly connected to the two rolling guide plates 42, and the rolling module 421 is driven by the rolling guide plate 42 to roll, smooth, squeeze and cut the materials on the platform. Cut and scrape action.

In practice, the rolling guide plates 42 may be arranged in multiple groups, and multiple rolling modules 421 on each group of rolling guide plates may be arranged at intervals.

In this embodiment, the power of the two rolling driving central shafts 41 is transmitted by the two driving central shafts 322 through the two gear steering mechanisms 431 . In specific practice, the power of the two rolling drive central shafts 41 can also be driven by two additional independent motors, or one independent motor can be driven by a transmission mechanism.

In this embodiment, the two driving central shafts 323 and the two rolling driving central shafts 41 are in the shape of a rectangular frame, and the driving between the four is completely realized by the gear steering mechanism 431 of the same specification to realize the power transmission, and no other transmission mechanism or Other independent motors are implemented, as shown in Figure 12. It should be noted that if the material conveying device 3 is not provided with a material rolling device, the rolling driving central shaft 41 is not used to drive the material rolling device, but can also be used as a transmission mechanism to drive the driving central shaft 323, so that The two drive central shafts 323 in the same group have the same rotational speed and steering.

Above the start end of the platform 100 is further provided a screw shaft spreading mechanism 300 .

As shown in Figure 13 to Figure 15, it is the first embodiment of the screw shaft spreading mechanism 300:

The screw shaft spreading mechanism 300 includes a screw shaft 301 and a material limiting unit 310 .

The screw shaft 301 is a bidirectional screw shaft, which is horizontally placed above the start end of the platform 100. The feed end of the screw shaft 301 is the middle part and the end is the two ends. The rotation direction of the screw shaft 301 is: the blade part located on the upper part of the screw shaft 301 Move toward the beginning of the platform 100 . The rotating motion of the screw shaft 301 causes the material to spread from the middle of the screw shaft 301 to both ends, and spread to the position of the platform 100 located at the bottom of the two-way screw shaft 301 .

The material limiting unit 310 includes a cover plate 311 and two side plates 312 ; the cover plate 311 covers the upper part of the screw shaft 301 to restrict the material from rolling out from the top of the screw shaft 301 ; the two side plates 312 are respectively arranged at both ends of the screw shaft 301 , the material is restricted from being pushed out to both ends of the screw shaft 301 and falling from both sides of the platform 100 . A feed port 313 is provided in the middle of the cover plate 311 , and the feed port 313 corresponds to the position of the feed end of the screw shaft 301 for feeding.

As shown in Figure 16 to Figure 18, it is the second embodiment of the screw shaft spreading mechanism 300:

The screw shaft spreading mechanism 300 includes a screw shaft 301 , a screw shaft 302 , a material limiting unit 310 , and a material blocking unit 320 .

The screw shaft 301 and the screw shaft 302 are arranged side by side at the beginning of the platform 100 , the screw shaft 301 is close to the material conveying direction, and the screw shaft 302 is close to the beginning of the platform 100 .

The rotation direction of the screw shaft 301 is: the blade part located on the upper part of the screw shaft 301 moves towards the beginning of the platform 100; the rotation direction of the screw shaft 302 is opposite to the direction of the screw shaft 301, that is, the blade part located on the upper part of the screw shaft 302 moves towards the material conveying direction .

The rotation of the screw shaft 301 and the screw shaft 302 causes the material to be swallowed and broken by the two screw shafts 301 and 302 , and the material is spread to the platform 100 at the bottom of the two screw shafts 301 and 302 .

A stopper unit 320 is provided on the side of the screw shaft 302 close to the start end of the platform 100. The stopper unit 320 tilts the start end of the platform 100 upward and surrounds the side of the screw shaft 302 near the start end of the platform 100 to prevent the material from being pushed to the platform Drops outside the beginning of 100.

The material restricting unit 310 includes a cover plate 311 and two side plates 312; the cover plate 311 covers the upper part of the screw shafts 301 and 302 to restrict the material from rolling out from the top of the screw shafts 301 and 302; the two side plates 312 are respectively arranged on the screw shafts The two ends of the 301 and 302 restrict the material being pushed out to the two ends of the screw shafts 301 and 302 and falling from both sides of the platform 100 . A feed port 313 is provided in the middle of the cover plate 311 , and the feed port 313 corresponds to the position of the feed ends of the screw shafts 301 and 302 for feeding.

As shown in Figure 19 and Figure 20, it is the third embodiment of the screw shaft spreading mechanism 300:

The difference from the second embodiment is that the material blocking unit 320 is provided with a blocking plate 321 on the side of the screw shaft 302 close to the start end of the platform 100 to prevent the material being pushed to the start end of the platform 100 from falling.

The rest of the structure is the same as that of the second embodiment.

As shown in Figure 21 to Figure 23, it is the fourth embodiment of the screw shaft spreading mechanism 300:

The difference from the second embodiment is that the stopper unit 320 is provided with a screw shaft 303 on the side of the screw shaft 302 close to the beginning of the platform 100 .

The rest of the structure is the same as that of the second embodiment.

As shown in Figure 24 to Figure 25, it is the fifth embodiment of the screw shaft spreading mechanism 300:

The difference from the fourth embodiment is that a feeding unit 330 is provided at the feeding port 313 , and the feeding unit 330 includes a feeding hopper 331 , a rotating shaft 332 and a stirring module arranged on the rotating shaft 332 333 , the shape of the stirring module 333 is a rectangular frame, and the rectangular frame is close to the inner wall of the feeding hopper 331 . The stirring module 333 rotates under the driving of the rotating shaft 332 to prevent the accumulation of materials, stir and cut the materials, and push the materials to the bottom of the feeding port 313 in time.

In addition, the feeding unit 330 can also be a material conveying pump directly connected to the feeding port 313 for one-way feeding.

The rest of the structure is the same as that of the fourth embodiment.

In addition, it should be noted that the feeding unit 330 may also be provided in the first to third embodiments of the screw shaft spreading mechanism 300 .

Workflow: The drying room 1 of the drying equipment is provided with a multi-layered push-type material conveying device 3, and the uppermost platform 100 of the stacked-strip push-type material conveying device 3 located at the uppermost layer is provided with a screw shaft material spreading mechanism 300. The material is automatically dropped or conveyed to the feeding unit 330 located at the feeding port 313 of the screw shaft spreading mechanism 300. Through the rotation of the screw shaft, the material is spread from the middle to both ends by the two-way screw shaft, and is spread to the two-way position. On the platform 100 at the bottom of the screw shaft. If it is agglomerated or easy to stick to the shaft and hold the shaft, crushing it through the double helical shaft will also make the material spread more smoothly. The reciprocating motion of the movable grid makes the material move towards the conveying direction of the material and keeps the ventilation seam transparent. Large surface area for material evaporation, and the excess material is squeezed to the lower platform 200 for continuous transportation, or even further rolling. The material starts from the beginning of the platform 100 and moves forward in the direction of material conveying. In order to control the conveying speed of the material, the speed of the motor can be adjusted or the motor can be reversed. After the material is dried from the platform end of the material conveying device, it falls to the material conveying device on the next layer to continue drying, and finally, the material with lower moisture content is discharged from the material conveying device on the lowermost layer.

The screw shaft spreading mechanism 300 in the present invention enables the material to be spread evenly on the platform 100 before conveying, without the need to set up a sliver machine at the feed port of the drying equipment, and has a crushing effect on the agglomerated material, reducing equipment investment costs .

The above descriptions are only preferred implementation examples of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims (18)

1. The utility model provides a take screw axis stone mechanism's material conveyor which characterized in that: comprises a platform for providing the material to be tiled and propelling the material; the platform comprises at least two or more groups of grid bars which are alternately stacked and paved to form a stack of push type material conveying platform; every two adjacent grid bars of the same group of grid bars are separated by a gasket, and the thickness of the gasket is greater than that of the other group of grid bars, so that a vent seam is formed;

at least one group of grid bars are movable grid bars, relative displacement is generated relative to the other adjacent group of grid bars, and each group of movable grid bars is ensured to do reciprocating motion;

two or more series connection holes are arranged at the front and rear balanced positions on each group of movable grid bars; the movable grid bars of each group are connected into a movable body through the serial connection rods penetrating through the serial connection holes; each movable body guides and drives all the movable grids of the group to generate the movement with the same movement track through a first driving device;

a spiral shaft spreading mechanism is arranged above the starting end of the platform; the screw shaft spreading mechanism comprises a screw shaft; the screw shaft is transversely arranged above the initial end of the platform, the screw shaft is provided with a feeding end and a tail end, and the material is spread to the tail end from the feeding end of the screw shaft through the rotating motion of the screw shaft and spread to the position of the platform at the bottom of the screw shaft.

2. The material conveying device with the screw shaft spreading mechanism as set forth in claim 1, wherein: the screw shaft is a bidirectional screw shaft, namely the feed end of the screw shaft is positioned in the middle of the screw shaft, and the tail end of the screw shaft is positioned at two ends of the screw shaft; the rotary motion of the bidirectional screw shaft enables the materials to be spread from the middle to two ends by the bidirectional screw shaft and to be flatly paved on the platform at the bottom of the bidirectional screw shaft.

3. The material conveying device with the screw shaft spreading mechanism as set forth in claim 1, wherein: the two screw shafts are arranged side by side, the screw shaft close to the material conveying direction is a first screw shaft, and the screw shaft close to the starting end of the platform is a second screw shaft;

the rotating directions of the first screw shaft and the second screw shaft are opposite;

the rotary motion of the two spiral shafts ensures that materials are phagocytized and crushed by the two spiral shafts, spread from the feeding ends of the spiral shafts to the tail ends of the spiral shafts, and spread to the platform at the bottom of the two spiral shafts.

4. The material conveying device with the screw shaft spreading mechanism as set forth in claim 3, wherein:

the blade part on the upper part of the second screw shaft moves towards the material conveying direction; one side of the second spiral shaft, which is close to the starting end of the platform, is provided with a material blocking unit, so that the materials are prevented from being pushed to the outside of the starting end of the platform and falling.

5. The material conveying device with the screw shaft spreading mechanism as set forth in claim 4, wherein: the material blocking unit is used for tilting the starting end of the platform upwards and surrounding the side edge of the second spiral shaft close to the starting end of the platform, so that the material is prevented from being pushed to the outside of the starting end of the platform and falling.

6. The material conveying device with the screw shaft spreading mechanism as set forth in claim 4, wherein: the material blocking unit is characterized in that a material blocking plate is arranged on one side, close to the starting end of the platform, of the second spiral shaft, so that materials are prevented from being pushed to the outside of the starting end of the platform and falling.

7. The material conveying device with the screw shaft spreading mechanism as set forth in claim 4, wherein: and the material blocking unit is characterized in that a third screw shaft is arranged on one side of the second screw shaft close to the starting end of the platform side by side, and the rotating direction of the third screw shaft is the same as that of the first screw shaft.

8. The material conveying device with the screw shaft spreading mechanism as set forth in any one of claims 1 to 7, wherein: the spiral shaft spreading mechanism also comprises a material limiting unit;

the material limiting unit comprises a cover plate and a side plate; the cover plate covers the upper part of the spiral shaft and limits materials from being rolled out from the upper part of the spiral shaft; the side plate is arranged at the tail end of the spiral shaft and used for limiting the material to be pushed out to the tail end of the spiral shaft and fall off from the side edge of the platform;

the material limiting unit is provided with a feeding hole, and the feeding hole corresponds to the feeding end of the spiral shaft in position and is used for feeding.

9. The material conveying device with the screw shaft spreading mechanism as set forth in claim 8, wherein: the feed inlet is connected with a material conveying pump for one-way material conveying.

10. The material conveying device with the screw shaft spreading mechanism as set forth in claim 8, wherein: the feeding port is provided with a feeding unit, and the feeding unit comprises a feeding hopper, a rotating shaft and a stirring module arranged on the rotating shaft;

the feed hopper is arranged above the feed inlet; the middle part of the stirring module is hollow and is close to the side wall of the feed hopper; the stirring module is in the rotation is under the drive of rotation axis, prevents that the material from piling up, stirs the material, cuts to in time with the material propelling movement extremely the feed inlet below.

11. The material conveying device with the screw shaft spreading mechanism as set forth in any one of claims 1 or 10, wherein: screw axis stone mechanism toward one side of material direction of delivery the platform top is equipped with material rolling machine, and this material rolling machine is through the drive of a second drive arrangement and is the reciprocating motion that is certain angle with the advancing direction of material, thereby is right material on the platform rolls, trowels, extrudees, cuts, strikes off the action.

12. The material conveying device with the screw shaft spreading mechanism as set forth in claim 11, wherein: the angle is 90 °.

13. The material conveying device with the screw shaft spreading mechanism as set forth in claim 1, wherein: the first driving device includes: a group of driving central shafts, a group of guiding grid bars and a group of driving mechanisms;

the group of driving central shafts comprises at least two driving central shafts;

the group of guide grid bars comprises at least two guide grid bars which are positioned at the left and right balance positions of the strip stacking propulsion type material conveying platform; each guide grid bar is provided with at least two first eccentric devices which are positioned at the front and back balance positions of the material conveying platform, and the driving central shaft penetrates through the first eccentric devices corresponding to the left and right of the group of guide grid bars; the eccentric directions and the eccentric distances of the first eccentric devices on the group of guide grid bars are consistent; each guide grid is provided with at least two fixed holes, and the positions of the fixed holes are consistent with those of the series connection holes on the movable grid; the fixed holes on the guide grid bars and the serial holes of the movable grid bars are fixedly connected in series through the same serial connecting rod;

the group of driving mechanisms comprise a first driving motor and a first transmission mechanism, or a plurality of first driving motors;

the group of driving mechanisms drive the group of driving central shafts to realize the same steering and rotating speed; the group of driving mechanisms drive the group of driving central shafts to synchronously move and respectively drive the group of guide bars sleeved on the group of driving central shafts to move, and the group of guide bars drive the group of movable bars connected with the group of driving central shafts to move along the same movement track.

14. The material conveying device with the screw shaft spreading mechanism as set forth in claim 11, wherein: the second driving device includes: the rolling device comprises a group of rolling driving central shafts, at least one rolling guide plate and a group of rolling device driving mechanisms;

the rolling driving central shafts comprise at least two rolling driving central shafts; the group of rolling driving central shafts are fixed through at least one fixing plate;

each rolling guide plate is provided with at least two second eccentric devices, and each second eccentric device is internally provided with one rolling driving central shaft in a penetrating way;

the rolling device driving mechanism comprises at least two gear steering mechanisms, a first output end of each gear steering mechanism penetrates through the rolling driving central shaft, and a second output end of each gear steering mechanism penetrates through the driving central shaft;

the driving central shaft drives the rolling driving central shaft to rotate through the gear steering mechanism, the rolling driving central shaft drives the rolling guide plate to move through the second eccentric device, and the moving direction of the rolling guide plate and the moving direction of the platform form a certain angle, so that the rolling guide plate performs rolling, floating, extruding, shearing and scraping actions on the materials on the platform.

15. The material conveying device with the screw shaft spreading mechanism as set forth in claim 11, wherein: the second driving device includes: the rolling device comprises a group of rolling driving central shafts, at least one group of rolling guide plates and a group of rolling device driving mechanisms;

the rolling driving central shafts comprise at least two rolling driving central shafts; the group of rolling driving central shafts are fixed through at least one fixing plate;

the rolling guide plates at least comprise two rolling guide plates, each rolling guide plate is provided with at least two second eccentric devices, and each second eccentric device is internally provided with one rolling driving central shaft in a penetrating way;

the rolling device driving mechanism comprises at least two gear steering mechanisms, a first output end of each gear steering mechanism penetrates through the rolling driving central shaft, and a second output end of each gear steering mechanism penetrates through the driving central shaft;

the driving center shaft passes through the gear steering mechanism drive roll the driving center shaft and rotate, roll the driving center shaft and pass through the second eccentric device drives a set of guide plate motion that rolls, a set of motion direction that rolls the guide plate with the motion direction of platform is certain angle, a set of guide plate that rolls still fixed connection one rolls the module, it is right under a set of drive that rolls the guide plate the material on the platform rolls, trowels, extrudees, cuts, strikes off the action to roll the module.

16. The material conveying device with the screw shaft spreading mechanism as set forth in claim 14 or 15, wherein: the rolling device driving mechanism comprises a second driving motor and a second transmission mechanism; the second driving motor and the second transmission mechanism drive the group of rolling driving central shafts to rotate, so that the rolling guide plate is driven to move;

or, the set of rolling device driving mechanisms comprises a plurality of second driving motors; each second driving motor drives one rolling driving central shaft to rotate, so that the rolling guide plate is driven to move.

17. The material conveying device with the screw shaft spreading mechanism as set forth in claim 15, wherein: the guide plate that rolls is the multiunit that the interval set up, the module that rolls is a plurality of for the interval sets up for the material is in the platform transportation process, can ensure that the material is rolled, screeded, extruded, cut, strikes off, can guarantee the smoothness of ventilating of material top again.

18. The material conveying device with the screw shaft spreading mechanism as set forth in claim 1, wherein: a lower layer platform is arranged below the platform, corresponds to the platform positioned above and also comprises at least two groups or more than two groups of grid bars which are alternately laminated; gaps are arranged between every two adjacent grid bars;

each group of movable grids on the platform on the upper layer are connected to a group of movable grids on the platform on the lower layer through a plurality of lower guide connecting strips which are distributed in a balanced manner and arranged on the movable grids on the two sides of the movable grids or the guide grids, so that each group of movable grids on the platform on the lower layer all correspond to the group of movable grids on the platform on the upper layer to move along the same track.

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