CN216333328U - Bale breaker and material pretreatment system - Google Patents

Abstract

A bale breaker and material preparation system, the bale breaker comprising: a material conveying platform; the material pushing device is used for pushing the material bags to move forwards on the material conveying platform; the material bag height detection unit is used for detecting the height of the material bag; the net breaking device is arranged in the material conveying platform and used for breaking the net wrapping of the material bag; the net wrapping clamping device is provided with a telescopic clamping end with adjustable height and used for clamping a net wrapping of the material bag; the first control unit is electrically connected with the material pushing device, the material bag height detection unit, the net breaking device and the net wrapping clamping device respectively. According to the automatic material bag disassembling device, the material bag can be automatically pushed through the material pushing device, the material bag height detection unit can detect the height of the material bag, so that the clamping height of the net clamping device can be conveniently adjusted, the net of the material bag can be broken through the net breaking device, the net clamping device can clamp the net, and finally the automatic material bag disassembling process is completed.

Description

Bale breaker and material pretreatment system

Technical Field

The utility model belongs to the field of crushers, and particularly relates to a bale breaker and a material pretreatment system.

Background

With the vigorous development of the environmental protection industry in China, the requirement of equipment related to environmental protection in China is more and more increased, wherein the crusher is used as the core equipment of environmental protection, and the demand is increased greatly. However, the crusher is not operated independently, and the material entering the crusher, such as straw, rag, etc., needs some pretreatment before it can be put into the crusher. The most critical of which is the need to disassemble the netting of the bales so that the material can be transported by the conveyor to the crusher. However, the means of disassembling the material bag net in the market at present mainly relies on manual work, so that a large amount of manpower is required to be input into the unpacking work to avoid wasting the capacity of the crusher, and on the other hand, manual unpacking and pushing are adopted, so that a great safety risk exists, and industrial accidents are easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a bale breaker, which solves the problem that the bale breaker needs to be manually unpacked. The utility model also provides a material pretreatment system.

A bale breaker according to an embodiment of the first aspect of the utility model comprises:

a material conveying platform;

the material pushing device is used for pushing the material bags to move forwards on the material conveying platform;

the material bag height detection unit is used for detecting the height of the material bag;

the net breaking device is arranged in the material conveying platform and used for breaking the net wrapping of the material bag;

the net wrapping clamping device is provided with a telescopic clamping end with adjustable height and is used for clamping the net wrapping of the material bag;

the first control unit is respectively electrically connected with the material pushing device, the material bag height detection unit, the net breaking device and the net wrapping clamping device.

The bale breaker according to the embodiment of the utility model has at least the following technical effects: can realize the self-propulsion to the material package through blevile of push, cancel artifical the participation and push away the material process, material package height detecting element can detect the height of material package to can be convenient for adjust the centre gripping height of package net clamping device, can break the net with the package net of material package through breaking the net device, let material and package net can separate, thereby make package net clamping device can press from both sides and get out the package net, finally accomplish the automatic disassembly process to the material package. Compared with the traditional unpacking mode, the unpacking machine provided by the embodiment of the utility model does not need to participate in the unpacking process manually, greatly improves the unpacking speed, improves the safety of personnel, reduces the investment of unpacking personnel, and is suitable for large-scale popularization and use.

According to some embodiments of the utility model, the cartridge height detection unit comprises:

the distance measuring support is arranged on the material conveying platform;

and the laser ranging sensor is electrically connected with the first control unit and arranged on the ranging bracket.

According to some embodiments of the utility model, the cartridge height detection unit is provided in plurality.

According to some embodiments of the present invention, the mesh breaking device includes a saw blade motor electrically connected to the first control unit, and a saw blade disposed on an output shaft of the saw blade motor.

According to some embodiments of the utility model, the net holding device comprises:

a first lifting mechanism having a first lifting end;

the first driving mechanism is electrically connected with the first control unit and used for driving the first lifting end to lift;

the first clamping part is connected with the first lifting end and is used for clamping the net wrapping of the material bag;

and the first height positioning unit is electrically connected with the first control unit and is used for feeding back the height of the first clamping part.

According to some embodiments of the utility model, the first height positioning unit comprises:

the first height detection switch units are electrically connected with the first control unit and are arranged at intervals along the lifting direction of the first lifting end;

and the first induction part is arranged on the first lifting end and used for triggering the first height detection switch unit.

According to some embodiments of the utility model, the net holding device further comprises:

the second lifting mechanism is provided with a second lifting end;

the second driving mechanism is electrically connected with the first control unit and used for driving the second lifting end to lift;

the second clamping part is connected with the second lifting end, and the second clamping part and the first clamping part are jointly used for clamping the net wrapping of the material bag; the second clamping part and the first clamping part have a height difference;

and the second height positioning unit is electrically connected with the first control unit and is used for feeding back the height of the second clamping part.

According to some embodiments of the utility model, the second height positioning unit comprises:

the plurality of second height detection switch units are electrically connected with the first control unit and are arranged at intervals along the lifting direction of the second lifting end;

and the second induction part is arranged on the second lifting end and used for triggering the second height detection switch unit.

According to some embodiments of the utility model, the second clamping portion and the first clamping portion are both rod-shaped structures.

According to some embodiments of the present invention, the bale breaker further includes a material bag position detecting unit electrically connected to the first control unit, and the material bag position detecting unit is configured to detect a position of the material bag on the material conveying platform.

According to some embodiments of the utility model, the material bag position detecting unit includes two position detecting switches electrically connected to the first control unit, and the two position detecting switches are used for detecting an advancing state of the material bag on the material conveying platform.

A material pretreatment system according to an embodiment of a second aspect of the present invention includes:

the bale breaker as described above;

the first chain scraper conveyor and the second chain scraper conveyor are electrically connected with the first control unit and are respectively arranged at the feeding end and the discharging end of the material conveying platform;

the screening assembly is electrically connected with the first control unit and used for screening the materials transmitted by the second chain scraper conveyor;

the single-shaft crusher is used for crushing the material screened by the screening assembly;

a frequency conversion unit for driving the single-shaft crusher;

a current detection unit for detecting current data of a main motor in the single-shaft crusher;

the second control unit is electrically connected with the frequency conversion unit, the single-shaft crusher and the current detection unit respectively;

and the display control unit is electrically connected with the second control unit.

The material pretreatment system provided by the embodiment of the utility model at least has the following technical effects: by adopting the bale breaker provided by the embodiment of the utility model, the fluency and the automation degree of the whole material pretreatment process can be improved; materials which cannot enter the crusher or do not need to enter the crusher can be screened through the screening assembly, and the frequency conversion control of the single-shaft crusher can be realized through the frequency conversion unit; the current detection unit can detect the current data of the main motor of the crusher, so that the effective control on the crusher pusher can be realized according to the current data; the visual control and adjustment of the material pretreatment system can be completed through the display control unit.

According to some embodiments of the present invention, the material pretreatment system further comprises a switch; the frequency conversion unit, the first control unit, the display control unit and the second control unit are communicated through the switch.

According to some embodiments of the present invention, the material preprocessing system further includes a data acquisition module electrically connected to the switch.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of the structure of a bale breaker of an embodiment of the present invention;

FIG. 2 is a block diagram of the electrical system of the bale breaker of an embodiment of the utility model;

FIG. 3 is a block diagram of a material pre-processing system according to an embodiment of the utility model;

FIG. 4 is an electrical system block diagram of a material pretreatment system of an embodiment of the present invention;

FIG. 5 is a hardware communication block diagram of a material pre-processing system according to an embodiment of the utility model;

fig. 6 is a schematic view of a single-shaft crusher (pusher not shown) according to an embodiment of the utility model.

Reference numerals;

the material conveying platform 110, the material pushing device 120, the material bag height detecting unit 130, the net breaking device 140, the net wrapping clamping device 150, the first lifting mechanism 151, the first clamping portion 152, the first height positioning unit 153, the second lifting mechanism 154, the second clamping portion 155, the second height positioning unit 156, the first control unit 160, the material bag position detecting unit 170, the second material bag position detecting unit 140, the third material bag position detecting unit 150, the fourth material bag position detecting unit 170, the fourth material bag position detecting unit 150, the fifth material bag position detecting unit 160, the sixth material bag position detecting unit 150, the sixth material bag position detecting unit 156, the sixth material bag position detecting unit 160, the fifth material bag height detecting unit 150, the fourth material bag height positioning unit 154, and the fourth material bag height positioning unit 156,

A first chain scraper conveyor 200,

A second chain scraper conveyor 300,

A screening assembly 400, a rotary screen 410, a magnetic separator 420,

Single-shaft crusher 500, main shaft 510, movable knife 511, fixed knife 521, adjusting bolt 522, main motor 530, transmission belt 540, reduction box 550,

A frequency conversion unit 600,

A current detection unit 700,

A second control unit 800,

Display control unit 900, switch 910, data acquisition module 920.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, if there are first, second, third, fourth, etc. described only for the purpose of distinguishing technical features, they are not to be interpreted as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.

In the description of the present invention, unless otherwise explicitly defined, terms such as arrangement, connection and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.

An embodiment of a bale breaker according to the first aspect of the utility model is described with reference to figures 1 to 6.

A bale breaker according to an embodiment of the utility model comprises: the device comprises a material conveying platform 110, a material pushing device 120, a material bag height detection unit 130, a net breaking device 140, a net wrapping clamping device 150 and a first control unit 160.

The pushing device 120 is used for pushing the material bags to move forwards on the material conveying platform 110;

a material bag height detection unit 130 for detecting the height of the material bag;

the net breaking device 140 is arranged in the material conveying platform 110 and is used for breaking the net wrapping of the material bag;

a net clamping device 150 having a height-adjustable telescopic clamping end for clamping a net of the material bag;

the first control unit 160 is electrically connected to the pushing device 120, the material bag height detecting unit 130, the net breaking device 140 and the net clamping device 150, respectively.

Referring to fig. 1 and 2, the material conveying platform 110 is horizontally disposed, and the material pack can be pushed on the material conveying platform 110, and the pushing direction of the pushing device 120 is parallel to the material conveying platform 110 and faces the direction of the discharge gate in the material conveying platform 110. After the material packages are transferred to the material transfer platform 110 by the first scraper chain conveyor 200, the material pushing device 120 may push the material packages toward the direction of the discharge gate.

In the advancing process, the material bag height detecting unit 130 can detect the height information of the material bag, and the first control unit 160 can adjust the height of the net clamping device 150 after determining the height information, so that the net clamping device 150 can clamp the net of the material bag from the upper end of the material bag. In the process, the material pushing device 120 continuously pushes the material bags, the material bags can be broken by the net breaking device 140 arranged at the bottom of the material transmission platform 110 to separate the material from the net in the net, the material pushing device 120 starts to retract after pushing a complete stroke, the material and the net are separated, and the material is discharged to the second chain plate conveyor 300 through the material discharging door on the material transmission platform 110 to perform subsequent preprocessing work.

According to the bale breaker provided by the embodiment of the utility model, the material bag can be automatically pushed through the material pushing device 120, the manual pushing process is omitted, the material bag height detection unit 130 can detect the height of the material bag, so that the clamping height of the net wrapping clamping device 150 can be conveniently adjusted, the net wrapping of the material bag can be broken through the net breaking device 140, the material and the net wrapping can be separated, the net wrapping clamping device 150 can clamp the net wrapping, and the automatic material bag dismantling process can be finally completed. Compared with the traditional unpacking mode, the unpacking machine provided by the embodiment of the utility model does not need to participate in the unpacking process manually, greatly improves the unpacking speed, improves the safety of personnel, reduces the investment of unpacking personnel, and is suitable for large-scale popularization and use.

In some embodiments of the present invention, referring to fig. 1, the pushing device 120 may employ a telescopic cylinder. With flexible hydro-cylinder level setting, the telescopic shaft alright with promoting the material package antedisplacement of flexible hydro-cylinder. Can set up the propelling movement flat board at telescopic shaft front end of telescopic cylinder to stability when guaranteeing the propelling movement material package. In some embodiments of the present invention, the pushing device 120 may also be an electric pushing device, such as: utilize the motor drive lead screw, the rethread lead screw promotes the material package and moves forward, or directly adopts flexible motor, accomplishes through the telescopic shaft of flexible motor and passes work. It should be noted here that, when the telescopic oil cylinder is used for propulsion, a larger thrust force can be provided, and the telescopic oil cylinder is suitable for propelling a material bag with a larger volume or weight. It should be noted here that when the overall structure of the bale breaker is determined, the pushing stroke of the pushing device 120 is also determined, and the pushing device only needs to push a complete stroke in the pushing process.

In some embodiments of the present invention, referring to fig. 1, the cartridge height detection unit 130 comprises: a ranging stand (not shown), a laser ranging sensor. The distance measuring bracket is arranged on the material conveying platform 110; the laser ranging sensor is electrically connected to the first control unit 160 and disposed on the ranging bracket. Laser rangefinder sensor passes through the range finding support can perpendicular to material transport platform 110 setting to can realize by the distance that down detects material platform and detect the distance of material package. A brief description of the principle of how the material package is detected is given here: when there is not the material package, the data that laser rangefinder sensor detected are the distance to material transmission platform 110, and after the material package sheltered from the laser that laser rangefinder sensor sent, the data that laser rangefinder sensor detected are the distance of laser rangefinder sensor to material package, and the difference of two distances is just the height information of material package, according to this height information alright with accurate calculation package net clamping device 150's height.

In some embodiments of the present invention, referring to fig. 1, there are a plurality of the packet height detecting units 130. Set up a plurality of material package height detecting element 130, can detect multiunit height data simultaneously, through asking the average number operation to multiunit height data, regard the average number as height information, can reduce because the height information error that the material package deformation brought. During actual calculation, the height data of the material bag can be collected by the single material bag height detection unit 130 continuously, and then the average value of the height data of the material bag collected in the time period can be obtained, so that the arrangement number of the material bag height detection units 130 can be reduced by adopting the method, but the real-time performance is worse than that of the plurality of material bag height detection units 130, and a sufficient distance needs to be reserved on the material transmission platform 110, so that the height of the bag net clamping device 150 can be adjusted.

In some embodiments of the present invention, referring to fig. 1, the breaking device 140 includes a blade motor electrically connected to the first control unit 160, and a blade disposed on an output shaft of the blade motor. Be provided with the slot-like through-hole on the material transmission platform 110, the through-hole position is located the direction that the material package marchd, and the saw bit motor sets up in the below of material transmission platform 110, and the sawtooth of saw bit can be through the packet net of through-hole cutting material package. In the continuous forward moving process of the material bag, the saw teeth can cut the bottom of the bag net at the bottom of the whole material bag, so that the internal material can be separated.

In some embodiments of the present invention, referring to fig. 1, the packet net holding device 150 comprises: a first lifting mechanism 151, a first driving mechanism (not shown), a first clamping part 152, and a first height positioning unit 153. A first lifting mechanism 151 having a first lifting end; the first driving mechanism is electrically connected with the first control unit 160 and used for driving the first lifting end to lift; the first clamping part 152 is connected with the first lifting end and used for clamping the net wrapping of the material bag; the first height positioning unit 153 is electrically connected to the first control unit 160 for feeding back the height of the first clamping portion 152.

The first lifting mechanism 151 has a lifting capability, the first clamping portion 152 is connected to the first lifting end of the first lifting mechanism 151 to have a capability of lifting simultaneously with the first lifting end, and the first driving mechanism can drive the first lifting mechanism 151 to lift. In some embodiments of the present invention, the first lifting mechanism 151 may be a telescopic cylinder, the first driving mechanism may be a matched hydraulic driving motor, the first lifting end may be a telescopic rod of the telescopic cylinder, and the first clamping portion 152 is connected to the telescopic rod, so that synchronous lifting can be realized along with lifting of the telescopic rod. First height location unit 153 sets up on the telescopic link, and then can confirm the height that has risen or descend through the flexible distance of confirming the telescopic link, finally realizes the purpose according to the first clamping part 152 height of material package height information adjustment for first clamping part 152 can realize the centre gripping to the material package net. In addition, the first lifting mechanism 151 may also adopt an electric lifting structure to adjust the height of the first clamping portion 152.

In some embodiments of the present invention, referring to fig. 1, the packet network holding device 150 further comprises: a second lifting mechanism 154, a second driving mechanism (not shown), a second clamping part 155, and a second height positioning unit 156. A second lifting mechanism 154 having a second lifting end; the second driving mechanism is electrically connected with the first control unit 160 and used for driving the second lifting end to lift; the second clamping part 155 is connected with the second lifting end, and the second clamping part 155 and the first clamping part 152 are used for clamping the net wrapping of the material bag together; the second clamping portion 155 and the first clamping portion 152 have a height difference; the second height positioning unit 156 is electrically connected to the first control unit 160 for feeding back the height of the second clamping portion 155.

The second lifting mechanism 154 also has a lifting capability, the second clamping portion 155 is connected to the second lifting end of the second lifting mechanism 154 and has a capability of lifting simultaneously with the second lifting end, and the second driving mechanism can drive the second lifting mechanism 154 to lift. In some embodiments of the present invention, the second lifting mechanism 154 may also be a telescopic cylinder, the second driving mechanism is a matched hydraulic driving motor, the second lifting end may be a telescopic rod of the telescopic cylinder, and the second clamping portion 155 is connected to the telescopic rod, so that the synchronous lifting can be realized along with the lifting of the telescopic rod. The second height positioning unit 156 is disposed on the telescopic rod, so that the height of the second clamping portion 155 can be determined by determining the telescopic distance of the telescopic rod, and the purpose of adjusting the height of the second clamping portion 155 according to the height information of the material bag is finally achieved. When the height of the second clamping part 155 and the first clamping part 152 is adjusted, the two parts are in the same vertical plane and have a certain height difference, so that the clamping of the packet net is more compact, and the packet net is prevented from falling off from the packet net clamping device 150.

In some embodiments of the present invention, referring to fig. 1, the second clamping portion 155 and the first clamping portion 152 are rod-shaped structures. The rod-shaped structure can make the second clamping part 155 and the first clamping part 152 more easily penetrate into the bag net, thereby realizing effective clamping of the bag net. The second clamping portion 155 and the first clamping portion 152 may also be shaped like a claw or other shaped structure to be clamped or grasped.

In some embodiments of the present invention, referring to fig. 1, the first height positioning unit 153 includes: first response part, a plurality of first height detection switch unit. A plurality of first height detection switch units electrically connected to the first control unit 160, the plurality of first height detection switch units being disposed at intervals along a lifting direction of the first lifting end; and the first induction part is arranged on the first lifting end and used for triggering the first height detection switch unit. Explaining by taking first elevating system 151 as telescopic cylinder, a plurality of first height detection switch units extend telescopic shaft axial arrangement, first response part sets up on the telescopic shaft, when first response part is close a certain first height detection switch unit, this first height detection switch unit can output an effective signal to can judge the position of current first response part, and first response part, first clamping part 152 all with telescopic link fixed connection, consequently after confirming first response part position, alright confirm the position of first clamping part 152.

In some embodiments of the present invention, referring to fig. 1, the second height positioning unit 156 includes: a second sensing part, a plurality of second height detection switch units. A plurality of second height detection switch units electrically connected to the first control unit 160, the plurality of second height detection switch units being disposed at intervals along a lifting direction of the second lifting end; and the second induction part is arranged on the second lifting end and used for triggering the second height detection switch unit. The second lifting mechanism 154 is used as a telescopic oil cylinder for explanation, a plurality of second height detection switch units are arranged along the axial direction of the telescopic shaft, a second induction component is arranged on the telescopic shaft, when the second induction component is close to a certain second height detection switch unit, the second height detection switch unit can output an effective signal, so that the position of the current second induction component can be judged, and the second induction component, the second clamping part 155 and the telescopic rod are fixedly connected, so that the position of the second clamping part 155 can be determined after the position of the second induction component is determined.

It should be noted that, in some embodiments of the present invention, the first height detection switch unit and the second height detection switch unit may employ a magnetic attraction detection switch or other similar proximity switch devices, and the first sensing component and the second sensing component may employ a magnet block or a metal block, so that the magnetic attraction detection switch may be triggered.

In some embodiments of the present invention, referring to fig. 1, the bale breaker further includes a material bag position detecting unit 170 electrically connected to the first control unit 160, and the material bag position detecting unit 170 may be configured to detect whether the material bag has fallen onto the material conveying platform 110. Once detecting that there is the material package to drop on the platform, just get into the bale breaking process, the bale breaking process is as follows: 1. starting the blade motor and the pusher 120; 2. starting the material bag height detection unit 130 to detect the height information of the material bag, and automatically adjusting the height of the net clamping device 150 according to the height of the material bag; 3. controlling the material pushing device 120 to push the material bag to complete the bag cutting of the material bag; 4. after the pushing device is pushed in place, the discharge doors on the two sides of the right side of the material transmission platform 110 are automatically opened for discharging, and meanwhile, the pushing device is retreated to the original position; 5. the net holding device 150 is lowered to the lowest position (i.e., the initial setting position); and 6, the discharge gate is closed again.

In some embodiments of the present invention, referring to fig. 1, the material bag position detecting unit 170 includes two position detecting switches electrically connected to the first control unit 160, and the two position detecting switches are used for detecting the advancing state of the material bag on the material conveying platform 110. Two position detection switches set up the one end of material package on material transmission platform 110 respectively to and be close the one end of arranging the bin gate, the position detection switch who is located the one end of material package is triggered, starts saw bit motor and oil pump motor and begins broken bag procedure, after the position detection switch who is close the one end of arranging the bin gate is triggered and trigger signal disappears, stops saw bit motor and horizontal cylinder and returns, arranges the bin gate and opens.

The embodiment of the utility model provides a control method of a bale breaker, which is applied to the bale breaker and comprises the following steps:

controlling the material pushing device 120 to push the material bag towards the direction of a discharge gate in the material conveying platform 110;

receiving height data collected by the material bag height detection unit 130;

confirming the height information of the material bag according to the height data;

adjusting the height of the telescopic clamping end of the net wrapping clamping device 150 according to the height information;

breaking the wrapping net of the material bag through a net breaking device 140;

the material pushing device 120 is continuously controlled to push the material bag until the material in the material bag is separated from the net, wherein the net of the material bag is clamped by the net clamping device 150, and the material in the material bag is discharged from the discharge gate.

Referring to fig. 1 and 2, the material conveying platform 110 is horizontally disposed, and the material pack can be pushed on the material conveying platform 110, and the pushing direction of the pushing device 120 is parallel to the material conveying platform 110 and faces the direction of the discharge gate in the material conveying platform 110. After the material packages are transferred to the material transfer platform 110 by the first scraper chain conveyor 200, the material pushing device 120 may push the material packages toward the direction of the discharge gate.

In the propulsion process, material package height detecting element 130 continuously gathers the altitude data, and this in-process altitude data divide into two kinds, has material package and no material package promptly, and when not having the material package, altitude data is great, and when having the material package, altitude data is less, through calculating the difference between two altitude data alright confirm the altitude information of material package. In the actual calculation, because the acquisition is continuous, whether the material bag is detected or not can be determined by judging the change value of the height data, so that the time for continuously performing the calculation is reduced.

After the height information is determined, the height of the net holding device 150 can be adjusted, so that the net holding device 150 can hold the net of the material bag from the upper end of the material bag. In the process, the material pushing device 120 continuously pushes the material bags, the material bags can be broken by the net breaking device 140 arranged at the bottom of the material transmission platform 110 to separate the material from the net in the net, the material pushing device 120 starts to retract after pushing a complete stroke, the material and the net are separated, and the material is discharged to the second chain plate conveyor 300 through the material discharging door on the material transmission platform 110 to perform subsequent preprocessing work.

According to the control method of the bale breaker provided by the embodiment of the utility model, the material bag can be automatically pushed through the material pushing device 120, the manual pushing process is cancelled, the material bag height detection unit 130 can detect the height of the material bag, so that the height information of the material bag can be conveniently obtained, the clamping height of the net clamping device 150 can be adjusted according to the height information, the net clamping device 150 can clamp the net, and the automatic dismantling process of the material bag is finally completed. Compared with the traditional unpacking mode, the unpacking machine applying the unpacking machine control method provided by the embodiment of the utility model does not need to participate in the unpacking process manually, greatly improves the unpacking speed, improves the safety of personnel, reduces the investment of unpacking personnel, and is suitable for large-scale popularization and use.

In some embodiments of the utility model, referring to fig. 1, the pod height detection unit 130 comprises a ranging bracket and a laser ranging sensor; the distance measuring bracket is arranged on the material conveying platform 110; the laser ranging sensor is electrically connected with the first control unit 160 and arranged on the ranging bracket;

confirming the height information of the material bag according to the height data, comprising the following steps:

acquiring the platform height acquired by a laser ranging sensor when no material bag is placed on the material conveying platform 110 and the material height acquired by the laser ranging sensor when the material bag is placed on the material conveying platform 110;

and calculating height information according to the height of the platform and the height of the material.

The height data that laser rangefinder sensor continuously detected, when not having the material package, what detected is that the mounted position is to the platform height of material transmission platform 110, and when blevile of push 120 was sent the material package to sheltering from laser rangefinder sensor position, what laser rangefinder sensor detected was that the mounted position is to the material height of material package upper surface, and the difference of material height and platform height just is the height information of material package. The laser ranging sensor can be replaced by an ultrasonic ranging sensor, and the effect of acquiring height data can be achieved.

In some embodiments of the present invention, referring to fig. 1, there are two material bag height detection units 130, and the two material bag height detection units 130 simultaneously collect height data, and by calculating the difference values and calculating the average value of the difference values, height information with smaller error can be obtained.

In some embodiments of the present invention, referring to fig. 1, the net wrapping holding device 150 comprises a first holding portion 152, a first height positioning unit 153, a second holding portion 155, a second height positioning unit 156; the first height positioning unit 153 includes a plurality of first height detection switch units, and the second height positioning unit 156 includes a plurality of second height detection switch units; the second clamping portion 155 and the first clamping portion 152 have a height difference; the plurality of first height detection switch units are arranged at equal intervals, and the plurality of second height detection switch units are arranged at equal intervals;

the height difference needs to satisfy the constraint formula:

h1+(C1-1)*k1<D<h2+(C2-1)*k2

in the formula, C1 is the number of the first height detection switch units, C2 is the number of the second height positioning units 156, h1 is the height of the first height detection switch unit located at the lowermost end from the material conveying platform 110, h2 is the height of the second height detection switch unit located at the lowermost end from the material conveying platform 110, k1 is the installation distance between two adjacent first height detection switch units, and k2 is the installation distance between two adjacent second height detection switch units.

The height difference between the second clamping part 155 and the first clamping part 152 is set through the constraint formula, so that the material packet net can be better clamped, and the phenomenon that the material packet net falls off or is not clamped in place is prevented.

A material pretreatment system according to an embodiment of a second aspect of the present invention includes: as described above, the bale breaker, the first apron conveyor 200, the second apron conveyor 300, the screening assembly 400, the single-shaft crusher 500, the frequency conversion unit 600, the current detection unit 700, the second control unit 800, and the display control unit 900.

A first chain conveyor 200 and a second chain conveyor 300, both electrically connected to the first control unit 160, respectively disposed at the feeding end and the discharging end of the material conveying platform 110;

a screening assembly 400 electrically connected to the first control unit 160 for screening the material conveyed by the second scraper chain conveyor 300;

a single-shaft crusher 500 for crushing the material screened by the screening assembly 400;

a frequency conversion unit 600 for driving the single-shaft crusher 500;

a current detecting unit 700 for detecting current data of the main motor 530 in the single-shaft crusher 500;

the second control unit 800 is electrically connected with the frequency conversion unit 600, the single-shaft crusher 500 and the current detection unit 700 respectively;

the display control unit 900 is electrically connected to the second control unit 800.

Referring to fig. 1 to 6, after being grabbed on first chain conveyor 200, the material package can be carried the bale breaker through first chain conveyor 200, the bale breaker can separate out the material in the material package, then discharge on second chain conveyor 300, second chain conveyor 300 further carries the material to screening subassembly 400 and screens, will not need to carry out the breakage and can't carry out broken material screening, later, through the broken granule that becomes in the material that screens can get into the breaker, in order to follow-up the use.

The frequency conversion unit 600 can adjust the rotating speed of the single-shaft crusher 500, so that a voltage reduction starting circuit similar to a soft starting circuit and the like is not needed during starting, and the whole structure is simplified. Simultaneously, after adopting the converter, possessed the ability of accurate regulation, can rotate with lower rotational speed control unipolar breaker 500 main shaft 510 to when the sword grain on can needing to change unipolar breaker 500 main shaft 510 again, convenient and quick more that can. In some embodiments of the utility model, two inching switches are respectively arranged on opposite corners of the body of the single-shaft crusher 500, and inching can be realized only when two electric switches are pressed down simultaneously, so that the safety of operators is ensured.

The current detection unit 700 can detect the current of the main motor 530 of the single-shaft crusher 500, the current value can directly and effectively feed back the workload of the main motor 530, the larger the workload is, the more the material in the single-shaft crusher 500 is, at the moment, the speed of pushing the material by the pusher of the single-shaft crusher 500 needs to be reduced, and the overload and the overcurrent of the crusher are prevented.

According to the material pretreatment system provided by the embodiment of the utility model, the bale breaker provided by the embodiment of the utility model can be used for improving the smoothness and the automation degree of the whole material pretreatment process; materials which cannot enter the crusher or do not need to enter the crusher can be screened through the screening assembly 400, and the frequency conversion control of the single-shaft crusher 500 can be realized through the frequency conversion unit 600; the current data of the main motor 530 of the crusher can be detected by the current detection unit 700, so that the effective control of the crusher pusher can be realized according to the current data; the display control unit 900 can complete the visual control and adjustment of the material pretreatment system.

For a better understanding of the single-shaft crusher 500, a brief description of the single-shaft crusher 500 is provided herein. Referring to fig. 6, the single-shaft crusher 500 comprises two main motors 530, two transmission belts 540, two reduction boxes 550 and a crusher main body, wherein the two main motors 530 need two frequency conversion units 600 for driving, so that the two main motors 530 can drive the transmission belts 540 and the reduction boxes 550 to work, and further drive the main shaft 510 of the single-shaft crusher 500 to rotate from two sides. The crusher main body comprises a frame and a main shaft 510 arranged on the frame, wherein a movable knife 511 is arranged on the main shaft 510, and fixed knives 521 are arranged on two sides of the frame, so that when the main shaft 510 rotates, materials can be crushed through the movable knife 511 and the fixed knives 521; the frame is provided with an adjusting bolt 522, and the fixed knife 521 is adjusted through the adjusting bolt 522. Here, it should be noted that, in the jog operation, only one main motor 530 may be selected to drive the main shaft 510 to rotate. The single-shaft crusher 500 further comprises a pusher which can push the material to the main shaft 510 of the crusher and then crush the movable blade 511 and the fixed blade 521. In some embodiments of the present invention, the single-shaft crusher 500 further comprises a main shaft rotation speed detection sensor, a pusher cylinder pressure detection sensor, a pusher oil tank temperature detection sensor, a main motor winding temperature detection sensor, and a main shaft bearing temperature detection sensor electrically connected to the second control unit 800, so that speed detection, pusher proportional pressure flow control, and many protection functions can be implemented, such as: stall protection, overtemperature alarm protection and overcurrent alarm.

In some embodiments of the present invention, referring to FIG. 3, screening assembly 400 includes a trommel 410 and a magnetic separator 420 arranged in series. The bale breaker unpacks the whole bale of material, the rotary screen 410 screens out impurities such as soil, sand and stones in the unpacked material, scrap iron and iron nails in the straw are separated out through the magnetic separator 420, and finally the pure straw is sent into the single-shaft crusher 500 to be crushed, so that pretreatment is achieved.

In some embodiments of the present invention, referring to fig. 2, fig. 3, and fig. 4, the material pretreatment system further includes a switch 910; the frequency conversion unit 600, the first control unit 160, the display control unit 900, and the second control unit 800 communicate through the switch 910. Carry out data interaction through switch 910, can simplify the line connection, and be convenient for carry out the function extension, can realize simultaneously through switch 910 with the communication of well accuse center, provide the basis for remote monitoring. Here, it should be noted that the two frequency conversion units 600 disposed for the main motors 530 on both sides of the crusher are communicatively connected through the CAN communication module, so that when only one frequency conversion unit 600 receives the control signal transmitted by the switch 910, the two main motors 530 CAN be synchronously controlled. Meanwhile, load current tracking can be automatically carried out between the two frequency converters, so that the load currents of the two motors are approximately equal at any time, and current out-of-tolerance accidents caused by uneven loads are avoided.

In some embodiments of the present invention, referring to fig. 5, the material preprocessing system further includes a data collecting module 920 electrically connected to the switch 910. In the field, most of the situations do not only have one crusher, but also have many other devices, and the data collected by the other devices can be transmitted to the central control center through the switch 910 by the data collection module 920.

In some embodiments of the present invention, the current detecting unit 700 may employ a current transducer, or a current sensor, which may effectively detect the current data of the crusher main motor 530.

In some embodiments of the present invention, the first control unit 160 and the second control unit 800 both employ a PLC, and particularly employ S7-200 SMART. The frequency conversion unit 600 adopts England GD 350-19-315G-4. The data acquisition module 920 employs HINET-M111T. The switch 910 employs the eastern Turing technology OPAL 8-E-8T-LV-LV.

The embodiment of the utility model provides a control method of a material pretreatment system, which is applied to the material pretreatment system, and comprises the following steps:

starting the single-shaft crusher 500, the screening assembly 400, the first apron conveyor 200, the second apron conveyor 300, and the bale breaker;

continuously acquiring current data of the single-shaft crusher 500;

if the current data is lower than the first preset current threshold value, controlling the material pusher of the single-shaft crusher 500 to move at the maximum working speed;

if the current data is higher than a second preset current threshold, controlling the material pusher of the single-shaft crusher 500 to stop working;

if the current data is between the first preset current threshold and the second preset current threshold, the advancing speed of the pusher of the single-shaft crusher 500 is inversely related to the magnitude of the current data.

Under the theoretical operational environment of the material pretreatment system, the material crushing operation can be started only by starting the single-shaft crusher 500, the screening assembly 400, the first chain scraper conveyor 200, the second chain scraper conveyor 300 and the unpacking machine opening. In practice, however, the conditions of the crusher may change as the materials to be crushed by the crusher are different, the density of the materials is different, etc., and at this time, if simple material pushing is still performed, overload may occur in the crusher main body. The control method of the material pretreatment system provided by the embodiment of the utility model can control the material pushing speed of the material pusher according to the working state of the crusher main body. The current data of the single-shaft crusher 500 can intuitively reflect the working state of the crusher, and therefore, the current data of the single-shaft crusher 500 is directly used for pushing material control of the pusher.

The principle of pushing materials is as follows: the crusher carries out full-speed feeding under the condition of light load (namely, the current data is lower than a first preset current threshold), the crusher stops feeding under the condition of heavy load (namely, the current data is higher than a second preset current threshold), and the feeding speed of the pusher is in negative correlation with the current data of the main motor 530 of the crusher within a normal working range (the current data is between the first preset current threshold and the second preset current threshold). That is, the more material in the crusher, the slower the feed rate of the feeder.

Specifically, when the current of the main motor 530 is not more than 0.3 time of the rated current 1, the maximum value of the proportional flow and the proportional pressure is 10V, and the pusher moves at the fastest speed; 2. when the current of the main motor 530 is between 0.3 times and 0.8 times of rated current, the proportional flow is linearly regulated along with the current in a reverse direction, namely, the larger the current is, the smaller the output is, and the slower the pusher speed is. 3. When the current of the main motor 530 reaches or exceeds 0.8 times of the rated current value, the proportional flow rate and the proportional pressure value are both set to 0V, which means that the pusher stops advancing. Then, the pusher retreats for 2 seconds and then returns back to advance, and the normal circulation is recovered.

According to the control method of the material pretreatment system, the bale breaker provided by the embodiment of the utility model can be used for improving the smoothness and the automation degree of the whole material pretreatment process; materials which cannot enter the crusher or do not need to enter the crusher can be screened through the screening assembly 400, and the frequency conversion control of the single-shaft crusher 500 can be realized through the frequency conversion unit 600; the current data of the main motor 530 of the crusher can be detected by the current detecting unit 700, so that the effective control of the crusher pusher can be realized according to the magnitude of the current data, and the condition of overload or long-time low-efficiency operation is avoided.

In some embodiments of the utility model, there may be loose lightweight material that is not transported in the form of a material bale, but is directly grabbed onto the first apron conveyor 200 by the grabbers. The light materials do not increase the load of the crusher greatly, so that when the light materials need to be processed by pressing, the stroke of the pusher is changed from full stroke to half stroke, namely the pusher turns back again to start advancing before the pusher backs to the final position, and the pushing frequency of the pusher is greatly improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. A bale breaker, comprising:

a material conveying platform;

the material pushing device is used for pushing the material bags to move forwards on the material conveying platform;

the material bag height detection unit is used for detecting the height of the material bag;

the net breaking device is arranged in the material conveying platform and used for breaking the net wrapping of the material bag;

the net wrapping clamping device is provided with a telescopic clamping end with adjustable height and is used for clamping the net wrapping of the material bag;

the first control unit is respectively electrically connected with the material pushing device, the material bag height detection unit, the net breaking device and the net wrapping clamping device.

2. The bale breaker of claim 1, wherein there are a plurality of bale height detection units.

3. The bale breaker of claim 1, wherein the mesh holding device comprises:

a first lifting mechanism having a first lifting end;

the first driving mechanism is electrically connected with the first control unit and used for driving the first lifting end to lift;

the first clamping part is connected with the first lifting end and is used for clamping the net wrapping of the material bag;

and the first height positioning unit is electrically connected with the first control unit and is used for feeding back the height of the first clamping part.

4. The bale breaker of claim 3, wherein the first elevation positioning unit comprises:

the first height detection switch units are electrically connected with the first control unit and are arranged at intervals along the lifting direction of the first lifting end;

and the first induction part is arranged on the first lifting end and used for triggering the first height detection switch unit.

5. The bale breaker of claim 3, wherein the mesh holding device further comprises:

the second lifting mechanism is provided with a second lifting end;

the second driving mechanism is electrically connected with the first control unit and used for driving the second lifting end to lift;

the second clamping part is connected with the second lifting end, and the second clamping part and the first clamping part are jointly used for clamping the net wrapping of the material bag; the second clamping part and the first clamping part have a height difference;

and the second height positioning unit is electrically connected with the first control unit and is used for feeding back the height of the second clamping part.

6. The bale breaker of claim 5, wherein the second elevation positioning unit comprises:

the plurality of second height detection switch units are electrically connected with the first control unit and are arranged at intervals along the lifting direction of the second lifting end;

and the second induction part is arranged on the second lifting end and used for triggering the second height detection switch unit.

7. The bale breaker of claim 1, further comprising a material bag position detection unit electrically connected to the first control unit, the material bag position detection unit being configured to detect a position of the material bag on the material conveying platform.

8. A material pretreatment system, comprising:

the bale breaker of any of claims 1 to 7;

the first chain scraper conveyor and the second chain scraper conveyor are electrically connected with the first control unit and are respectively arranged at the feeding end and the discharging end of the material conveying platform;

the screening assembly is electrically connected with the first control unit and used for screening the materials transmitted by the second chain scraper conveyor;

the single-shaft crusher is used for crushing the material screened by the screening assembly;

a frequency conversion unit for driving the single-shaft crusher;

a current detection unit for detecting current data of a main motor in the single-shaft crusher;

the second control unit is electrically connected with the frequency conversion unit, the single-shaft crusher and the current detection unit respectively;

and the display control unit is electrically connected with the second control unit.

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