CN110919852A

CN110919852A - Modular special mortar production equipment

Info

Publication number: CN110919852A
Application number: CN201811102537.3A
Authority: CN
Inventors: 钱新华
Original assignee: CHANGZHOU AIBUNA MACHINERY Co Ltd
Current assignee: CHANGZHOU AIBUNA MACHINERY Co Ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2020-03-27
Anticipated expiration: 2038-09-20
Also published as: CN110919852B

Abstract

The invention discloses modular special mortar production equipment, belongs to mortar production equipment, and aims to provide mortar production equipment with a dust absorption effect, wherein the technical scheme is as follows: the mortar mixing device comprises a mortar storage tank, wherein a box body frame is connected to the lower end of the mortar storage tank, the box body frame is divided into four layers, a material mixing layer, a raw material mixing weighing layer, a mixing layer and a packaging layer are sequentially and respectively arranged on the material mixing layer from top to bottom, a material mixing bin is arranged on the material mixing layer, a weighing hopper is arranged on the raw material mixing weighing layer, a mixing machine is arranged on the mixing layer, a packaging machine is arranged on the packaging layer, and the mortar storage tank is connected to the weighing hopper on the; the box frame is inside and be connected with the dust removal pipeline, and the one end of dust removal pipeline is located the box frame, and the box frame is worn out to the other end, has seted up a plurality of pipe orifices of connecting in advance on the dust removal pipeline, and proportioning bins upper end, weighing hopper upper end, mix machine upper end and packagine machine upper end all are provided with the pulse dust collector, and the pulse dust collector intercommunication is the pipe orifice of connecting in advance. The invention is suitable for mortar production equipment.

Description

Modular special mortar production equipment

Technical Field

The invention relates to mortar production equipment, in particular to modular special mortar production equipment.

Background

The special mortar is one kind of mortar, and is mainly suitable for mortar with special requirements of heat preservation, heat insulation, sound absorption, water resistance, corrosion resistance, radiation protection, decoration, bonding and the like. The special mortar is a granular or powdery mortar which is prepared by physically mixing dry and screened aggregate (such as quartz sand), inorganic cementing material (such as cement), additive (such as polymer) and the like according to a certain proportion, and the material can be directly used after being mixed with water. Also known as mortar dry powder, dry mix, some construction adhesives also fall into this category. The mortar plays roles of bonding, lining, protection and decoration in a thin layer in the building industry, and has extremely wide application in building and decoration engineering. The production flow of the mortar is as follows: raw material storage, raw material proportioning and weighing, mixing treatment and packaging, and is mainly used in the building and decoration industries.

Chinese patent No. CN103895106B discloses a movable mortar production device, which comprises a metering box, a mixing box, a packaging control box and a box connection limit piece. The packing control box is located subaerial, and the mode that freight container overlapped each other is adopted to the mixing box stacks on the left part of packing control box, carries out spacing fixed connection through corresponding box connection locating part between mixing box and the packing control box, prevents that mixing box and packing control box from misplacing in the horizontal direction, then through corresponding bolt fixed connection. The metering box is stacked on the mixing box in a mode that freight containers are stacked mutually. Although this kind of movable mortar production facility carries out spacing fixed connection through corresponding box connection locating part between batch meter and the mixing box, prevent batch meter and mixing box dislocation in the horizontal direction, then through corresponding bolt fixed connection, nevertheless structural all handling mortar powder of one deck, the raise dust phenomenon appears because of the batching in the processing procedure dust easily, measurement or step such as compounding, not only can cause the influence to constructor's physical and mental health, also easy dust gets into in the machine, cause the damage of machine, this problem is waited to solve urgently.

Disclosure of Invention

The invention aims to provide modular special mortar production equipment which has the effect of dust collection of the whole equipment.

The technical purpose of the invention is realized by the following technical scheme:

a modular special mortar production device comprises a mortar storage tank, wherein the upper end of the mortar storage tank is connected with a lifting machine, one end, away from the mortar storage tank, of the lifting machine is provided with a ton bag packaging bag opening module, one side of the mortar storage tank is provided with a box body frame, the box body frame is divided into four layers, a batching feeding layer, a raw material batching weighing layer, a mixing layer and a packaging layer are sequentially arranged from top to bottom respectively, the batching feeding layer is provided with a batching bin, the raw material batching weighing layer is provided with a weighing hopper, the mixing layer is provided with a mixing machine, the packaging layer is provided with a packaging machine, and the mortar storage tank is connected with the weighing hopper of the raw material batching weighing layer;

the utility model discloses a dust removal device for packing machine, including box frame, proportioning bin, weigh hopper, mixing machine upper end and packagine machine, box frame internal connection has the dust removal pipeline, the one end of dust removal pipeline is located the box frame, and the box frame is worn out to the other end, a plurality of pre-connection pipe orifices have been seted up on the dust removal pipeline, proportioning bin upper end, weigh hopper upper end, mix the machine upper end and all be provided with the pulse dust collector, the pulse dust collector.

According to the technical scheme, the ton bag body is opened by the ton bag packaging and opening module, mortar is thrown into the elevator, the elevator lifts the mortar and injects the mortar into the mortar storage tank, then the mortar in the mortar storage tank enters the weighing hopper of the raw material batching weighing layer for weighing, meanwhile, batching is thrown into the weighing hopper by the batching bin in the batching and feeding layer, the batching raw materials are weighed together with the mortar, then the batching raw materials enter the mixing machine of the mixing layer for mixing, and finally, the packaging is carried out by the packaging machine of the packaging layer to form a final finished product; at this in-process, can adsorb the dust in the production process through arranging the pulse dust collector on proportioning bins, weighing hopper, mixing machine and packagine machine, the adsorbed dust passes through the connecting tube mouth and gets into the dust removal pipeline, and the dust removal pipeline reaches the purpose of unified dust removal with dust discharge mortar production facility, has reduced spilling over of dust, has improved the cleanliness of site environment, accords with the current situation of the environment-friendly industry of modern advocating.

Furthermore, pulse dust collector and proportioning bins, weighing hopper, mix machine and packagine machine dismouting and be connected.

Through adopting above-mentioned technical scheme, the pulse dust collector through the dismouting connection can make things convenient for the staff to install, if also more convenient dismantlement when will maintaining, when long-time use back, filter core in the pulse dust collector need be changed, also makes things convenient for the staff to change the filter core.

Further, ton bag packing bag-opening module is including the main frame that is located lifting machine one side, the horizontal I-steel of upper end fixedly connected with of main frame, slide on the I-steel and be connected with the electric hoist, the lower extreme of electric hoist has hung the mount, the mount lower extreme is equipped with the ton bag body, still fixedly connected with connecting plate on the main frame, fixedly connected with is located the feeder hopper of ton bag body below on the connecting plate, the lower extreme of feeder hopper is equipped with down the hopper, the lower extreme intercommunication of hopper has the inlet pipe down, the one end that the hopper was kept away from down to the inlet pipe is connected with the feed inlet of lifting machine, it is connected with the crowded flitch that is located ton bag body both sides to rotate on the connecting plate, fixedly connected with first cylinder on the connecting plate, and the piston rod of first cylinder rotates with.

Through adopting above-mentioned technical scheme, the staff at first will fill out the ton bag body of mortar and fix on the mount, promote the ton bag body through the electric hoist, will ton the body bag and remove the top of feeder hopper for the export of the ton bag body is located the import of feeder hopper. The worker loosens the binding rope at the outlet of the ton bag body, so that the bulk materials fall into the feed hopper from the outlet of the ton bag body and finally enter the elevator from the feed pipe; if have in the ton bag body and be difficult to when the mortar that freely falls, with two crowded flitchs respectively with the both sides contact of the ton bag body, start first cylinder for crowded flitch extrudees the ton bag body, will pile up and extrude the ton bag body at the material of ton bag side, thereby make the accumulational mortar in the ton bag body enter into the lifting machine, improve the efficiency of transportation, also reduce the waste of mortar simultaneously.

Furthermore, a first air suction pipe is connected to the side wall of the feeding pipe, a pulse dust collector is arranged at one end, far away from the feeding pipe, of the first air suction pipe, and an annular channel communicated with the first air suction pipe is arranged on the inner side of one end, far away from the discharging hopper, of the feeding pipe.

Through adopting above-mentioned technical scheme, the in-process that the mortar falls from ton bag body export can produce very much dust impurity, and whole workspace is full of easily to these dust impurity to cause the influence to operation workman's healthy. Therefore, the pulse dust collector, the first air suction pipe and the annular channel are arranged, so that dust impurities enter the first air suction pipe from the annular channel under the dust suction effect of the pulse dust collector, the dust impurities are collected, and dust pollution is reduced.

Furthermore, the mortar storage tank is communicated with a single-screw conveying pipe, the single-screw conveying pipe is communicated with a weighing hopper of the raw material batching and weighing layer, the single-screw conveying pipe is inclined upwards towards one end of the weighing hopper, and the weighing hopper is also communicated with the lower end of the batching bin;

the weighing hopper comprises a top cover and a one-level butterfly valve, the top cover is located at the upper end of the weighing hopper, the one-level butterfly valve is located at the lower end of the weighing hopper, the one-level butterfly valve is electrically connected with a PLC, the top cover is communicated with a single-screw conveying pipe through a one-level rubber hose, a feeding hole is communicated with the position, corresponding to the one-level rubber hose, of the top cover, the top cover and the weighing hopper are arranged in a separated mode, the top cover is fixedly connected with a vertical frame, one end of the vertical frame, far away from the top cover, is fixedly connected to a box body frame, the edge of the top cover and the edge of the upper end of the weighing hopper are fixedly connected with gravity sensors, the gravity sensors are provided with a.

By adopting the technical scheme, when the weighing hopper is used for weighing mortar, the PLC controls the first-stage butterfly valve to be closed, the ingredients and the mortar enter the weighing hopper from the mortar storage tank and the ingredient bin through the single-screw conveying pipe, and the mortar can be prevented from entering the weighing hopper due to gravity by the inclined upward arrangement of the single-screw conveying pipe, so that the difference between the weight of the material in the weighing hopper and the specified weight is reduced;

because the separation setting between top cap and the weighing hopper, gravity sensor can measure the weight of raw materials and batching in the weighing hopper, and the vibration that the mortar produced when the top cap is difficult to produce the influence to gravity sensor's weighing result. Meanwhile, partial materials blocked in the single-screw conveying pipe in the traditional weighing hopper can also be counted into a weighing result, so that the sensitivity and the accuracy of the weighing result of the gravity sensor are insufficient. This defect can be overcome in the separation setting between top cap and the weighing hopper, and the effectual measurement accuracy who improves gravity sensor can only be weighed by the material that drops to in the weighing hopper. The gravity sensors are provided with a plurality of gravity sensors, the measurement results of each gravity sensor can be collected in the PLC and are calculated averagely, the measurement value of the weight is obtained finally, and the measurement sensitivity can be effectively improved through the arrangement of the gravity sensors.

Furthermore, a pneumatic vibrator is arranged on the outer side wall of the weighing hopper and electrically connected with the PLC.

Through adopting above-mentioned technical scheme, the mortar probably adheres on the scale hopper inner wall surface when the blanking for the material weight that actually falls into in the follow-up equipment is not enough and influences the mortar quality, and when the blanking was opened to PLC controller control one-level butterfly valve, the pneumatic vibrator of simultaneous control opened, and the impact through compressed air makes the scale hopper lateral wall produce the vibration, shakes off remaining mortar in the scale hopper, reduces the error.

Further, the bottom of mixing the machine is provided with the opening that is used for pouring the material, the bottom of mixing the machine articulates through first pivot has the lid that is used for hiding the opening, fixedly connected with second cylinder on the mixing machine, it has the actuating lever to articulate on the piston rod of second cylinder, the actuating lever keep away from second cylinder end with first pivot fixed connection, it is connected with the second pivot to rotate on the mixing machine, the second pivot with first pivot axial direction is parallel, be equipped with the piece of supporting in the second pivot, the piece of supporting with the lid supports tightly, the tip that lies in the second pivot on the mixing machine is provided with and is used for driving second pivot pivoted third cylinder.

By adopting the technical scheme, when the materials are well stirred and need to be taken out, the third air cylinder enables the second rotating shaft to rotate so as to drive the locking piece to be far away from the cover body, the piston rod of the second air cylinder stretches out and draws back so as to drive the driving rod to rotate, and along with the rotation of the driving rod, the cover body is opened so as to enable the well-stirred materials to be discharged through the opening, and the materials are not easy to remain in the mixing machine after the materials are taken out from the bottom of the mixing machine; after the stirred materials are discharged, the second air cylinder stretches to drive the driving rod to rotate in the opposite direction, and the cover body is closed to the mixer to cover the opening; then the third cylinder makes the second rotate the antiport to drive and support the tight piece and move to and support tightly with the lid, make lid and the closed tighter of mixing machine, prevent that the material from spilling from the gap between lid and the mixing machine.

Further, the lower end of the mixing machine is communicated with a discharge bin, the side wall of the discharge bin is provided with a mounting hole, and a flow aiding mechanism is mounted in the mounting hole;

flow aid mechanism includes the dead lever, the diameter of dead lever is greater than the diameter of mounting hole, dead lever coaxial coupling has the threaded rod, the diameter of threaded rod is less than the diameter of mounting hole, the cover is equipped with the rubber air cushion on the dead lever, be close to threaded rod one end on the dead lever and seted up the venthole, the threaded rod is kept away from dead lever one end and has been seted up the inlet port along the axis direction on, the inlet port is connected with the inflator, venthole and inlet port intercommunication, threaded connection has fixation nut on the threaded rod.

By adopting the technical scheme, a worker penetrates the threaded rod into the mounting hole, the rubber air cushion on the fixed rod is attached to the inner wall of the discharge bin, then the fixed nut is rotated on the threaded rod, the fixed rod is fixed on the bin wall of the discharge bin, and the air cylinder is connected to the air inlet hole, so that the installation of the flow-assisting mechanism is completed; during discharging, the air cylinder is intermittently inflated to the air inlet, air in the air inlet enters between the rubber air cushion and the bin wall of the discharging bin through the air outlet, the air jacks up the rubber air cushion to be scattered and overflowed outwards, the rubber air cushion is attached to the bin wall of the discharging bin again after being scattered and overflowed by the air, and the rubber air cushion forms the situation of continuously beating the bin wall of the discharging bin due to short time, so that materials on the bin wall of the discharging bin are shaken off, and the situation that dry-mixed mortar is accumulated in the discharging bin is reduced; meanwhile, the overflowing gas also plays a role in assisting the flow of the dry-mixed mortar, so that the discharge is smoother.

Furthermore, both sides all are provided with position sensor in the bulkhead of play feed bin, position sensor is connected with the PLC controller electricity.

Through adopting above-mentioned technical scheme, can detect out the ejection of compact condition of both sides in the feed bin, if the interior material of ejection of compact storehouse is piled up to full, position sensor can send the signal of telecommunication to give the PLC controller, and other equipment of PLC controller control stops to be defeated the material, reduces and continues the defeated material condition that causes the mortar to spill over.

Further, the lower end of the discharging bin is connected with a packaging machine, a first base is arranged beside the packaging machine, two first rotating shafts are arranged on the first base, the first rotating shafts are connected with a first conveying motor, first conveying belts are arranged on the two first rotating shafts, a shaping device is arranged beside the first conveying belts, a dust collection assembly is arranged above the first conveying belts, the dust collection assembly comprises dust collection boxes coated on the first conveying belts, and the dust collection boxes are communicated with a pulse dust collector;

shaping device is including setting up the frame on one side at first conveyer belt, it has high adjustment mechanism to extend to first conveyer belt one side in the frame, high adjustment mechanism include with frame fixed connection's stationary blade, it is connected with vertical lead screw to rotate on the stationary blade, lead screw coaxial coupling has driving motor, threaded connection has the nut on the lead screw, the nut extends the slider towards frame one side, set up the spout that supplies slider sliding connection in the frame, the nut is provided with the backup pad towards first conveyer belt one side, backup pad downwardly extending has two connecting rods, two the direction that the connecting plate is side by side is first conveyer belt width direction, two be provided with the dwang between the connecting rod, it is connected with the plastic gyro wheel to rotate on the dwang.

By adopting the technical scheme, a worker can firstly start the driving motor to drive the screw rod to rotate, the nut moves up and down along with the movement of the sliding block in the sliding groove, the rotation force of the screw rod is converted into linear motion, and the nut drives the supporting plate to move up and down, so that the shaping roller moves up and down and is adjusted to the height capable of pressing the surface of the packaged packaging bag; when the transportation, the staff places the transported substance on first conveyer belt, and wrapping bag is carried to first conveyer belt, and when the plastic gyro wheel, the plastic gyro wheel suppression is at the transported substance upper surface, rolls the suppression to the transported substance of upper surface unevenness to reach the purpose of plastic. And through the effect of pulse dust collector convulsions, will carry the article and be stained with the dust and get rid of on the skin, make things convenient for the processing of follow-up process.

In conclusion, the invention has the following beneficial effects:

1. the pulse dust collector, the pre-connection pipe orifice and the dust removal pipeline are adopted, so that the effect of discharging dust generated in the mortar production process out of equipment is achieved;

2. the weighing hopper and the top cover which are separately arranged are adopted, so that the effect of accurately measuring the materials is achieved;

3. the flow-assisting mechanism at the discharging bin is adopted, so that the effect of conveniently discharging the material from the discharging bin is achieved.

Drawings

FIG. 1 is a schematic overall view showing a box frame, a blending layer, a raw material blending weighing layer, a mixing layer and a packaging layer in this embodiment;

fig. 2 is a schematic structural diagram of a bag opening module for packaging ton bags in the embodiment;

FIG. 3 is a schematic diagram of a weighing layer for embodying the ingredient in this embodiment;

FIG. 4 is a schematic view of the mixer of the present embodiment;

FIG. 5 is a schematic diagram of the structure for embodying the driving of the second cylinder and the third cylinder of the mixer in the present embodiment;

fig. 6 is a schematic structural diagram for embodying the first rotating shaft and the second rotating shaft in the present embodiment;

FIG. 7 is a schematic structural diagram of the discharging bin in the embodiment;

FIG. 8 is a schematic cross-sectional view of the discharge bin of the present embodiment;

fig. 9 is an enlarged view at a of fig. 8 for embodying a flow aiding mechanism;

fig. 10 is a schematic structural view of a first conveyor belt for embodying a packaging layer in the present embodiment;

fig. 11 is an enlarged view of the shaping device shown at B in fig. 10.

In the figure, 1, a mortar storage tank; 11. a single screw rod conveying pipe; 2. a hoist; 3. a ton bag packaging and opening module; 31. a main frame; 32. i-shaped steel; 33. an electric hoist; 34. a fixed mount; 35. a ton bag body; 36. A feed hopper; 37. feeding a hopper; 38. a feed pipe; 381. a first air suction pipe; 382. an annular channel; 39. extruding a material plate; 310. a first cylinder; 311. a connecting plate; 4. a box frame; 5. a material mixing and feeding layer; 51. a proportioning bin; 6. a raw material ingredient weighing layer; 61. a weighing hopper; 62. a top cover; 621. a feed port; 622. a dust removal hole; 63. a primary butterfly valve; 64. a PLC controller; 65. a primary rubber hose; 66. erecting a frame; 67. a gravity sensor; 68. a pneumatic vibrator; 7. a mixed layer; 71. a mixer; 72. a first rotating shaft; 73. a cover body; 74. a second cylinder; 75. a second rotating shaft; 76. a propping block; 77. a third cylinder; 78. a drive rod; 79. a bolt; 710. a first link; 711. a second link; 712. a third link; 8. a packaging layer; 81. a packaging machine; 82. a first base; 83. a first rotating shaft; 84. a first conveying motor; 85. a first conveyor belt; 86. a shaping device; 861. a frame; 8611. a chute; 862. a height adjustment mechanism; 8621. a fixing sheet; 8622. a screw rod; 8623. a nut; 8624. a slider; 8625. a drive motor; 863. a support plate; 864. a connecting rod; 865. rotating the rod; 866. shaping rollers; 87. a dust collection assembly; 871. a dust collection box; 9. a pulse dust collector; 91. a dust removal pipeline; 92. pre-connecting the pipe orifices; 10. a discharging bin; 101. mounting holes; 102. a flow aid mechanism; 1021. fixing the rod; 1022. a threaded rod; 1023. a rubber air cushion; 1024. an air outlet; 1026. an air inlet; 103. an air cylinder; 104. fixing a nut; 105. a position sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model provides a modular special mortar production facility, as shown in fig. 1, includes mortar storage tank 1, and mortar storage tank 1 upper end is connected with lifting machine 2, and 2 lower extremes of lifting machine are connected with ton bag packing and open a bag module 3, and mortar storage tank 1 is provided with four layers of box frame 4 on one side, and four layers of box frame 4 are from the top down respectively for batching throw the bed of material 5, raw materials batching weigh layer 6, mix layer 7 and packing layer 8 in proper order. The box frame 4 internally connected has dust removal pipeline 91, and the one end of dust removal pipeline 91 is located box frame 4, and box frame 4 is worn out to the other end, has seted up a plurality of pipe orifices 92 of connecting in advance on the dust removal pipeline 91, and the batching is thrown the bed of material 5, raw materials batching and is weighed layer 6, mix layer 7 and packing layer 8 and all be provided with pulse dust collector 9, and pulse dust collector 9 intercommunication connects pipe orifice 92 in advance. The method comprises the following steps that a worker opens a ton bag body 35 firstly, mortar is put into a lifting machine 2, the lifting machine 2 lifts the mortar and injects the mortar into a mortar storage tank 1, then the mortar in the mortar storage tank 1 enters a raw material proportioning weighing layer 6 for weighing, meanwhile, a proportioning feeding layer 5 feeds proportioning into a weighing hopper 61, the weighing hopper 61 weighs proportioning and raw materials, then the proportioning raw materials enter a mixing layer 7 for mixing, and finally, the mixture is packaged through a packaging layer 8 to form a final finished product; in this manufacturing process, production facility can produce a lot of mortar dust, can adsorb the dust in the production process through pulse dust collector 9 to get into dust removal pipeline 91 through connecting pipe mouth 92 in advance, dust removal pipeline 91 discharges the mortar production facility with the dust, reaches the purpose of unified dust removal, has reduced overflowing of dust.

As shown in fig. 2, the ton bag packaging and unpacking module 3 includes a main frame 31 fixed on the side wall of the elevator 2, an i-beam 32 is fixedly connected to the upper end of the main frame 31, and an electric hoist 33 is slidably connected to the i-beam 32. A fixing frame 34 is fixedly connected to the claw of the electric hoist 33, and a ton bag body 35 with an upward opening is arranged on the fixing frame 34. The main frame 31 is fixedly connected with a connecting plate 311, the connecting plate 311 is provided with a feed hopper 36 located below the ton bag body 35, the lower end of the feed hopper 36 is connected with a lower hopper 37, the lower end of the lower hopper 37 is connected with a feed pipe 38, and one end of the feed pipe 38 far away from the lower hopper 37 is connected with a feed inlet of the elevator 2. When feeding, firstly, the ton bag body 35 filled with the material is fixed on the fixing frame 34, so that the outlet of the ton bag body 35 faces downwards. Move the ton bag body 35 to the top of feeder hopper 36 through electric hoist 33, unpack the export of ton bag body 35 apart for the material enters into feeder hopper 36, and then enters into lifting machine 2 along inlet pipe 38, has improved work efficiency.

As shown in fig. 2, in order to better let the mortar in the ton bag body 35 fall into the feeding hopper 36, a material extruding plate 39 which is vertically upward is rotatably connected to the connecting plate 311, and the material extruding plate 39 is located on two sides of the ton bag body 35. Two ends of the connecting plate 311 are respectively and fixedly connected with a first cylinder 310, and a piston rod of the first cylinder 310 is respectively and rotatably connected with one side of the connecting plate 311 far away from the feed hopper 36. In the falling process of the material, the first cylinder 310 pushes the material extruding plate 39 to rotate, so that the material accumulated on the side edge of the ton bag body 35 is extruded to the middle part of the ton bag body 35, the material fully falls into the feed hopper 36, and the waste of the material is reduced.

As shown in FIG. 2, the material generates a large amount of dust impurities during the feeding process, therefore, a first air suction pipe 381 is connected to the side wall of the feeding pipe 38, and a detachable pulse dust collector 9 is arranged at one end of the first air suction pipe 381 far away from the feeding pipe 38. The inner wall of one side of the feeding pipe 38, which is far away from the discharging hopper 37, is provided with an annular channel 382 communicated with the first air suction pipe 381, and dust impurities enter the first air suction pipe 381 from the annular channel 382 under the action of the pulse dust collector 9, so that the collection and discharge of the dust impurities are realized, and the dust pollution is reduced.

As shown in fig. 1, the material is conveyed from the ton bag 35 to the elevator 2 and then to the mortar storage tank 1, the single screw conveyer pipe 11 is connected to the lower end of the mortar storage tank 1, and the single screw conveyer pipe 11 is connected to the weighing hopper 61 of the raw material batching and weighing layer 6. The batching layer 5 is provided with a batching bin 51, and the batching bin 51 is provided with a detachable pulse dust collector 9. Weighing hopper 61 still communicates with proportioning bins 51 lower extreme, and single screw conveyer pipe 11 is to weighing hopper 61 one end tilt up, can reduce the material too big and sputter the outside condition because of the impulsive force when the conveying, also reduces the material impulsive force simultaneously too big, thereby the material gets into too much and makes weighing hopper 61's the measurement registration inaccurate condition that influences measurement accuracy.

As shown in fig. 3, the weighing hopper 61 includes a top cover 62, a vertical frame 66 fixedly connected to the top cover 62 is provided on the floor of the raw material ingredient weighing layer 6, and a gravity sensor 67 is separately provided and connected between the top cover 62 and the weighing hopper 61. In this embodiment, the gravity sensors 67 are 3 in number and are uniformly distributed along the periphery of the top cover 62, and thus the gravity distribution of each gravity sensor 67 can be more uniform. Thereby the change of gravity to producing on all directions produces timely quick feedback, further improves measurement accuracy and measuring sensitivity, also can strengthen the connection stability between top cap 62 and the weighing hopper 61 simultaneously. The gravity sensors 67 are electrically connected with the PLC 64, the measurement result of each gravity sensor 67 can be transmitted into the PLC 64 for summary calculation, the measurement value of the whole gravity is obtained, and the measurement precision and the measurement sensitivity can be effectively improved. In this embodiment, the PLC controller 64 is a S7-200 series PLC controller manufactured by siemens.

As shown in fig. 3, a first-stage butterfly valve 63 is provided at the lower end of the weighing hopper 61, and the first-stage butterfly valve 63 is electrically controlled and electrically connected to a PLC controller 64. Be connected with the one-level rubber hose 65 of vertical setting between single screw conveyer pipe 11 and the top cap 62, the one-level rubber hose 65 is directly established at single screw conveyer pipe 11 lower extreme, is equipped with feed port 621 under the one-level rubber hose 65 on the top cap 62, and the aperture of feed port 621 is 1 to 1.1 times of one-level rubber hose 65, and in this embodiment, the aperture of feed port 621 is 1.1 times of one-level rubber hose 65. The tail end of the first-level rubber hose 65 is positioned below the upper edge of the weighing hopper 61, so that the flying dust generated when the materials flow into the weighing hopper 61 from the first-level rubber hose 65 can be effectively reduced, and the flying dust escapes to the air from the gap between the top cover 62 and the weighing hopper 61.

As shown in fig. 3, a dust removing hole 622 is formed in the center of the top cover 62, a detachable pulse dust collector 9 is connected above the dust removing hole 622, and the pulse dust collector 9 is connected to the pre-connection pipe opening 92. Because the separation setting can have the clearance between top cap 62 and the weighing hopper 61, when the material of carrying is the dust form material, defeated material in-process extremely easily produces the raise dust, can pollute operational environment and cause the potential safety hazard on the one hand, and on the other hand has also caused the waste of material, especially the higher material of some unit prices, and the dust in the air of loss can bring great economic loss. The arrangement of the pulse dust collector 9 can effectively collect dust generated in the material conveying process.

As shown in fig. 3, a pneumatic vibrator 68 is mounted on the side wall below the weighing hopper 61, the pneumatic vibrator 68 is electrically connected with the PLC controller 64, when the material is weighed and then falls into the material mixing layer 7 below, the material may adhere to the inner wall surface of the weighing hopper 61, so that the weight of the material actually falling into the material mixing layer 7 is insufficient, and the pneumatic vibrator 68 can vibrate the side wall of the weighing hopper 61 through the impact of compressed air, so as to achieve the effect of sufficient falling. In the present embodiment, the pneumatic vibrator 68 is a turbine type pneumatic vibrator of a GT10 type.

As shown in fig. 1, the weighing hopper 61 is transported to a mixer 71 of the mixing layer 7 after weighing, and a pulse dust collector 9 is attached to the upper end of the mixer 71 to remove dust generated during mixing.

As shown in fig. 4 and 5, an opening for pouring out the material is provided at the bottom of the mixing machine 71, a cover 73 (see fig. 5) for covering the opening is hinged to the bottom of the mixing machine 71 through a first rotating shaft 72, a driving rod 78 is rotatably connected to the mixing machine 71, and a second air cylinder 74 is fixedly connected to the mixing machine 71, wherein the driving rod 78 is rotatably connected to an end portion of the mixing machine 71 and an end portion of the first rotating shaft 72, and the other end portion of the driving rod is rotatably connected to a piston rod of the second air cylinder 74.

As shown in fig. 7, a second rotating shaft 75, which is axially parallel to the first rotating shaft 72, is rotatably connected to the mixing machine 71, a resisting block 76 is arranged on the second rotating shaft 75, a bolt 79, which is tightly contacted with the cover 73, is threadedly connected to the resisting block 76, the bolt 79 is rotated to change the length of the bolt 79 extending out of the resisting block 76, so that the force applied to the cover 73 by the resisting block 76 when the cover 73 is tightly contacted is adjusted, and the bolt 79 is rotated according to the height of the cover 73 from the ground, so that the cover 73 can be always tightly contacted to the mixing machine 71 by the resisting block 76, thereby improving the applicability of the mixing machine 71. The third cylinder 77 is fixedly connected to the mixing machine 71, the first connecting rod 710 is rotatably connected to the mixing machine 71, the rotating connecting end of the first connecting rod 710 and the mixing machine 71 is fixedly connected to the second rotating shaft 75, the other end of the first connecting rod is rotatably connected to the second connecting rod 711, the end, far away from the first connecting rod 710, of the second connecting rod 711 is rotatably connected to the third connecting rod 712, and the end, far away from the second connecting rod 711, of the third connecting rod 712 is rotatably connected to the piston rod of the third cylinder 77.

As shown in fig. 6, when the abutting block 76 abuts against the cover 73, the second connecting rod 711 and the third connecting rod 712 are both perpendicular to the ground and located on the same straight line, so that when the third cylinder 77 fails and the third cylinder 77 cannot be retracted, the second connecting rod 711 and the third connecting rod 712 will be always located on the same straight line and perpendicular to the ground without external force, so that the abutting block 76 will always abut against the cover 73.

As shown in fig. 7, the lower end of the mixer 71 (see fig. 4) is communicated with a discharge bin 10, a mounting hole 101 is formed in the side wall of the discharge bin 10, a flow assisting mechanism 102 is mounted at the mounting hole 101 of the discharge bin 10, the flow assisting mechanism 102 can help the discharge bin 10 to discharge better, and the effect of dry-mixed mortar accumulated in the discharge bin 10 is reduced.

As shown in fig. 9, the flow assisting mechanism 102 includes a fixing rod 1021, the diameter of the fixing rod 1021 is larger than that of the mounting hole 101, the fixing rod 1021 is coaxially connected with a threaded rod 1022, the diameter of the threaded rod 1022 is smaller than that of the mounting hole 101, the threaded rod 1022 can be inserted into the mounting hole 101, and the fixing rod 1021 is sleeved with a rubber air cushion 1023, the rubber air cushion 1023 is umbrella-shaped and is tightly attached to the inner wall of the discharging bin 10; two fixing nuts 104 are connected to the threaded rod 1022 through threads, and the fixing rod 1021 is fixed in the discharging bin 10 by turning the fixing nuts 104 to the threaded rod 1022.

As shown in fig. 9, after the fixing rod 1021 is fixed, an air outlet 1024 is formed at a section of the fixing rod 1021 between the discharging bin 10 and the rubber air cushion 1023, an air inlet 1026 is formed at one end of the threaded rod 1022 far away from the fixing rod 1021 along the axial direction, and the air outlet 1024 is communicated with the air inlet 1026. The air cylinder 103 is arranged at the air inlet hole 1026, the inflation inlet of the air cylinder 103 is in threaded connection with the air inlet hole 1026, the air cylinder 103 can inflate the air inlet hole 1026, and the air cylinder can be conveniently installed and detached at the air inlet hole 1026 through threaded connection. The air cylinder 103 intermittently inflates the air inlet 1026 through the inflation inlet, the air in the air inlet 1026 passes through the air outlet 1024 and jacks up the rubber air cushion 1023 when overflowing outwards, the rubber air cushion 1023 intermittently beats on the bin wall of the discharging bin 10, and the flow assisting effect is achieved through beating vibration; meanwhile, the gas overflowing from the mixing tank can also play a role in mixing and fluidizing the dry-mixed mortar, so that the dry-mixed mortar can be discharged more smoothly.

As shown in fig. 8, position sensors 105 are disposed on the front and back sides of the discharging bin 10, and the position sensors 105 are electrically connected to the PLC controller 64, so that the discharging condition in the discharging bin 10 can be detected, and the discharging bin 10 can continue to discharge the dry-mixed mortar after the dry-mixed mortar is not accumulated on the two sides

As shown in fig. 10, after discharging through the discharging bin 10, the material reaches a packing machine 81 (see fig. 1) of the packing layer 8, the packing machine 81 packs the special mortar and then places the packed special mortar on a first conveying belt 85 on a first base 82, the first base 82 is provided with two first rotating shafts 83 which are arranged in tandem, the first conveying belt 85 is sleeved on the first rotating shaft 83, the first rotating shaft 83 is coaxially connected with a first conveying motor 84, and a shaping device 86 is arranged above the first conveying belt 85. The conveyor belt on the first conveyor belt 85 can be preliminarily pressed and reshaped by the reshaping device 86.

As shown in fig. 11, the shaping device 86 includes a frame 861 disposed beside the first conveyor belt 85, a height adjusting mechanism 862 extends from the frame 861 to one side of the first conveyor belt 85, the height adjusting mechanism 862 includes a fixing plate 8621 fixedly connected to the frame 861, a vertical screw rod 8622 is rotatably connected to the fixing plate 8621, the screw rod 8622 is driven by a driving motor 8625, a nut 8623 is screwed to the screw rod 8622, a sliding block 8624 extends from the nut 8623 to one side of the frame 861, and a sliding slot 8611 for slidably connecting the sliding block 8624 is formed in the frame 861. The nut 8623 is provided with a supporting plate 863 facing one side of the first conveying belt 85, the supporting plate 863 extends downwards to form two connecting rods 864, the two connecting plates 311 are arranged side by side in the width direction of the first conveying belt 85, a rotating rod 865 (see fig. 10) is arranged between the two connecting rods 864, and the rotating rod 865 is rotatably connected with a shaping roller 866. The staff can drive motor 8625 drive lead screw 8622 earlier and rotate, nut 8623 moves and reciprocates along with slider 8624 in spout 8611, trun into linear motion with the power of turning round of lead screw 8622, nut 8623 drives backup pad 863 and reciprocates, thereby make plastic gyro wheel 866 reciprocate, adjust to the height that can suppress the transported substance surface, when the transportation, the staff places the transported substance on first conveyer belt 85, first conveyer belt 85 carries the transported substance, when plastic gyro wheel 866, the suppression of plastic gyro wheel 866 is on the transported substance upper surface, carry out the roll suppression to the transported substance of upper surface unevenness, thereby reach the purpose of plastic.

As shown in fig. 10, a dust collection assembly 87 is arranged above the first conveyor belt 85, the dust collection assembly 87 includes a dust collection box 871 coated on the first conveyor belt 85, the dust collection box 871 is communicated with the pulse dust collector 9, and the conveyed product is stained with dust on the outer layer to be removed by the air suction effect of the pulse dust collector 9, so that the subsequent processes can be conveniently processed.

The specific implementation process comprises the following steps:

the material entering: when a large amount of bulk materials are put in the ton bag body 35 at the bag opening station, the bulk materials are firstly put in the ton bag body 35, the ton bag body 35 filled with the bulk materials is fixed on the fixed frame 34, and the ton bag body 35 is hoisted to the upper part of the feed hopper 36 through the electric hoist 33, so that the outlet of the ton bag body 35 faces to the inlet of the feed hopper 36. The pulse dust collector 9 is started, the outlet of the ton bag body 35 is opened, and the materials fall into the feed hopper 36 under the action of gravity. When the material in the ton bag body 35 is less and less, the first cylinder 310 is started, so that the material extruding plate 39 pushes the material accumulated on the side wall of the ton bag body 35 to the middle part of the ton bag body 35, and the material in the ton bag body 35 is more fully discharged. The material falls into the hoisting machine 2, and then the mortar is transported to the mortar storage tank 1 from the ground through the hoisting machine 2.

Weighing: when the weighing hopper 61 is used for weighing materials, the PLC 64 controls the first-stage butterfly valve 63 at the lower end of the weighing hopper 61 to be closed, then the mortar storage tank 1 is conveyed to the weighing hopper 61 through the single-screw conveying pipe 11, the gravity sensor 67 measures the weight of the materials in the weighing hopper 61 and the weighing hopper 61, and the vibration generated when the materials enter the top cover 62 is not easy to influence the weighing result of the gravity sensor 67. When the gravity sensor 67 detects that the weight of the materials in the weighing hopper 61 reaches a specified value, the PLC 64 controls the first-stage butterfly valve 63 to be opened, and the materials enter the material mixing layer 7 from the lower end of the weighing hopper 61 to be mixed. Meanwhile, the PLC controller 64 controls the pneumatic vibrator 68 to start working, so that the material remaining on the inner surface of the weighing hopper 61 is separated, and a sufficient blanking effect is achieved. The PLC 64 also controls the pulse dust collector 9 to work at the same time, and the dust on the weighing hopper 61 is removed.

Mixing: mortar enters the mixer 71 from the weighing hopper 61, the mixer 71 mixes the materials, when the materials are mixed and taken out from the mixer 71, the third cylinder 77 contracts to drive the second connecting rod 711 and the third connecting rod 712 to rotate, the first connecting rod 710 drives the second rotating shaft 75 to rotate along with the rotation of the second connecting rod 711, the abutting block 76 is far away from the cover 73, then the second cylinder 74 stretches to drive the first rotating shaft 72 to rotate, so that the cover 73 is opened to discharge the materials, after the stirred materials are discharged, the second cylinder 74 drives the driving rod 78 to rotate in the opposite direction, at the moment, the cover 73 covers the opening, then the third cylinder 77 extends, so that the second connecting rod 711 and the third connecting rod 712 rotate to reset to drive the first connecting rod 710 to rotate, so that the second rotating shaft 75 rotates in the opposite direction, and at the moment, the abutting block 76 and the bolt 79 move until the cover abuts against the cover 732.

Discharging: the worker places the fixed rod 1021 in the discharging bin 10, the threaded rod 1022 penetrates through the mounting hole 101 and extends out of the discharging bin 10, the fixed nut 104 is rotated on the threaded rod 1022, meanwhile, the rubber air cushion 1023 on the fixed rod 1021 is attached to the inner wall of the discharging bin 10, the worker connects the inflation inlet of the air cylinder 103 to the air inlet 1026 through threads, the air cylinder 103 intermittently inflates the air inlet 1026, the air in the air inlet 1026 enters between the rubber air cushion 1023 and the bin wall of the discharging bin 10 through the air outlet 1024, when the air is increased, the air jacks up the rubber air cushion 1023, the air cylinder 103 continuously inflates, the rubber air cushion 1023 continuously jacks up and falls down to form a phenomenon of beating the wall of the discharging bin 10, the discharging bin 10 is vibrated, and mortar in the discharging bin 10 is shaken off; if too much mortar is accumulated in the discharging bin 10, the position sensor 105 senses the accumulation of the mortar and sends an electric signal to the PLC 64, and the PLC 64 controls other equipment to stop running.

Packaging: the material passes through on the packagine machine 81 of play feed bin 10 blowing back material arrival packing layer 8, packagine machine 81 places the first conveyer belt 85 after packing special mortar, then the staff forerunner's drive motor lead screw 8622 rotates, and nut 8623 reciprocates along with slider 8624 removes in spout 8611, turns into linear motion with the power of circling round of lead screw 8622, and nut 8623 drives backup pad 863 and reciprocates to make plastic gyro wheel 866 reciprocate, adjust to the height that can suppress the transportation article surface. The first conveying motor 84 is driven, the first conveying belt 85 starts conveying, a worker places a conveyed product on the first conveying belt 85, the shaping roller 866 presses the upper surface of the conveyed product when the conveyed product passes through the shaping roller 866, and the conveyed product with the uneven upper surface is rolled and pressed, so that the purpose of shaping the upper surface is achieved; the transported articles are transported continuously, then enter the dust collection box 871 on the first conveyor belt 85, are dedusted by the pulse deduster 9, and finally, the treated finished products are output.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The modular special mortar production equipment is characterized in that: comprises a mortar storage tank (1), the upper end of the mortar storage tank (1) is connected with a hoist (2), one end of the elevator (2) far away from the mortar storage tank (1) is provided with a ton bag packaging and opening module (3), a box body frame (4) is arranged beside the mortar storage tank (1), the box body frame (4) is divided into four layers, and a material feeding layer (5), a raw material proportioning and weighing layer (6), a mixing layer (7) and a packaging layer (8) are sequentially arranged from top to bottom, the ingredient feeding layer (5) is provided with an ingredient bin (51), the raw material ingredient weighing layer (6) is provided with a weighing hopper (61), the mixing layer (7) is provided with a mixer (71), the packaging layer (8) is provided with a packaging machine (81), the mortar storage tank (1) is connected with a weighing hopper (61) of the raw material batching and weighing layer (6);

box frame (4) internal connection has dust removal pipeline (91), the one end of dust removal pipeline (91) is located box frame (4), and box frame (4) are worn out to the other end, if intervene connecting pipe mouth (92) have been seted up on dust removal pipeline (91), proportioning bins (51) upper end, weighing hopper (61) upper end, mix machine (71) upper end and packagine machine (81) upper end all are provided with pulse dust collector (9), pulse dust collector (9) intercommunication is connecting pipe mouth (92) in advance.

2. The modular special mortar production equipment of claim 1, which is characterized in that: the pulse dust collector (9) is detachably connected with the proportioning bin (51), the weighing hopper (61), the mixing machine (71) and the packing machine (81).

3. The modular special mortar production equipment of claim 2, which is characterized in that: the ton bag packaging and unpacking module (3) comprises a main frame (31) located on one side of a lifting machine (2), the upper end of the main frame (31) is fixedly connected with a transverse I-shaped steel (32), the I-shaped steel (32) is connected with an electric hoist (33) in a sliding manner, the lower end of the electric hoist (33) is hung with a fixing frame (34), the lower end of the fixing frame (34) is provided with a ton bag body (35), the main frame (31) is also fixedly connected with a connecting plate (311), the connecting plate (311) is fixedly connected with a feeding hopper (36) located below the ton bag body (35), the lower end of the feeding hopper (36) is provided with a blanking hopper (37), the lower end of the blanking hopper (37) is communicated with a feeding pipe (38), one end, far away from the blanking hopper (37), of the feeding pipe (38) is connected with a feeding hole of the lifting machine (2), and the connecting plate (311) is rotatably connected with material, the connecting plate (311) is fixedly connected with a first air cylinder (310), and a piston rod of the first air cylinder (310) is rotatably connected with one side, far away from the feed hopper (36), of the extruding plate (39) respectively.

4. A modular special mortar production plant according to claim 3, characterized in that: the side wall of the feeding pipe (38) is connected with a first air suction pipe (381), one end, far away from the feeding pipe (38), of the first air suction pipe (381) is provided with a pulse dust collector (9), and the inner side of one end, far away from the discharging hopper (37), of the feeding pipe (38) is provided with an annular channel (382) communicated with the first air suction pipe (381).

5. A modular special mortar production plant according to claim 4, characterized in that: the mortar storage tank (1) is communicated with a single-screw conveying pipe (11), the single-screw conveying pipe (11) is communicated with a weighing hopper (61) of the raw material batching and weighing layer (6), the single-screw conveying pipe (11) inclines upwards towards one end of the weighing hopper (61), and the weighing hopper (61) is also communicated with the lower end of a batching bin (51);

the weighing hopper (61) comprises a top cover (62) and a first-stage butterfly valve (63), the top cover (62) is positioned at the upper end of the weighing hopper (61), the first-stage butterfly valve (63) is positioned at the lower end of the weighing hopper (61), the first-stage butterfly valve (63) is electrically connected with a PLC (programmable logic controller) (64), the top cover (62) is communicated with the single-screw conveying pipe (11) through a first-stage rubber hose (65), a feeding hole (621) is communicated with the position, corresponding to the first-stage rubber hose (65), on the top cover (62), the top cover (62) and the weighing hopper (61) are arranged in a separated mode, the top cover (62) is fixedly connected with a vertical frame (66), one end, far away from the top cover (62), of the vertical frame (66) is fixedly connected onto a box body frame (4), the edge of the top cover (62) and the edge of the upper end of the weighing hopper (61) are fixedly connected with gravity sensors (67, the gravity sensor (67) is electrically connected with the PLC controller (64).

6. A modular special mortar production plant according to claim 5, characterized in that: and a pneumatic vibrator (68) is arranged on the outer side wall of the weighing hopper (61), and the pneumatic vibrator (68) is electrically connected with the PLC (64).

7. A modular special mortar production plant according to claim 6, characterized in that: an opening for pouring materials is arranged at the bottom of the mixing machine (71), a cover body (73) for covering the opening is hinged at the bottom of the mixing machine (71) through a first rotating shaft (72), a second air cylinder (74) is fixedly connected to the mixer (71), a piston rod of the second air cylinder (74) is hinged with a driving rod (78), the end of the driving rod (78) far away from the second air cylinder (74) is fixedly connected with the first rotating shaft (72), the mixer (71) is rotatably connected with a second rotating shaft (75), the second rotating shaft (75) is axially parallel to the first rotating shaft (72), the second rotating shaft (75) is provided with a propping block (76), the propping block (76) is propped against the cover body (73), and a third cylinder (77) for driving the second rotating shaft (75) to rotate is arranged at the end part of the mixing machine (71) positioned on the second rotating shaft (75).

8. A modular special mortar production plant according to claim 7, characterized in that: the lower end of the mixing machine (71) is communicated with a discharging bin (10), the side wall of the discharging bin (10) is provided with a mounting hole (101), and a flow aiding mechanism (102) is mounted in the mounting hole (101);

flow aid mechanism (102) includes dead lever (1021), the diameter of dead lever (1021) is greater than the diameter of mounting hole (101), dead lever (1021) coaxial coupling has threaded rod (1022), the diameter of threaded rod (1022) is less than the diameter of mounting hole (101), the cover is equipped with rubber air cushion (1023) on dead lever (1021), be close to threaded rod (1022) one end on dead lever (1021) and seted up venthole (1024), dead lever (1021) one end is kept away from in threaded rod (1022) one end and seted up inlet port (1026) along the axis direction, inlet port (1026) are connected with inflator (103), venthole (1024) and inlet port (1026) intercommunication, threaded rod (1022) are gone up threaded connection has fixation nut (104).

9. The modular special mortar production plant of claim 8, characterized in that: both sides all are provided with position sensor (105) in the bulkhead of ejection of compact storehouse (10), position sensor (105) are connected with PLC controller (64) electricity.

10. The modular special mortar production plant of claim 9, characterized in that: the lower end of the discharging bin (10) is connected with a packing machine (81), a first base (82) is arranged beside the packing machine (81), two first rotating shafts (83) are arranged on the first base (82), the first rotating shafts (83) are connected with first conveying motors (84), first conveying belts (85) are arranged on the two first rotating shafts (83), a shaping device (86) is arranged beside the first conveying belts (85), a dust collection assembly (87) is arranged above the first conveying belts (85), the dust collection assembly (87) comprises dust collection boxes (871) coated on the first conveying belts (85), and the dust collection boxes (871) are communicated with a pulse dust collector (9);

the shaping device (86) comprises a rack (861) arranged beside a first conveying belt (85), a height adjusting mechanism (862) is arranged on the rack (861) and extends to one side of the first conveying belt (85), the height adjusting mechanism (862) comprises a fixing plate (8621) fixedly connected with the rack (861), a vertical screw rod (8622) is connected to the fixing plate (8621) in a rotating mode, a driving motor (8625) is coaxially connected to the screw rod (8622), a nut (8623) is connected to the screw rod (8622) in a threaded mode, a sliding block (8624) extends out of one side of the nut (8623) towards the rack (861), a sliding groove (8611) for the sliding block (8624) to be connected is formed in the rack (861), a supporting plate (863) is arranged on one side of the nut (8623) towards the first conveying belt (85), and two connecting rods (864) extend downwards from the supporting plate (863), two direction that connecting plate (311) are side by side is first conveyer belt (85) width direction, two be provided with dwang (865) between connecting rod (864), it is connected with plastic gyro wheel (866) to rotate on dwang (865).