阅读说明：本技术 再造烟叶预压打包超重检测装置及检测方法 (overweight detection device and detection method for prepressing and packaging of reconstituted tobacco ) 是由 崔传宝 李勇 李娜 孟献民 常青 王海龙 于 2019-09-18 设计创作，主要内容包括：本发明给出了一种再造烟叶预压打包超重检测装置；秤台通过若干升降气缸固定在支架,输送皮带机固定在秤台上侧,下料管道固定在支架上侧,双向喂料皮带机对准下料管道；检测组件的定位架一端与支架侧壁固定,另一端与非接触位移传感器固定,检测挡板固定连接在秤台的侧壁上。本发明还给出了一种利用上述的再造烟叶预压打包超重检测装置检测料箱进料重量的方法,包括以下步骤：料箱移动至下料管道下侧；升降气缸同步启动,秤台上升；启动双向喂料皮带机,再造烟叶原料落入料箱直至重量到达预定值,双向喂料皮带机停止运转,料箱内再造烟叶原料重量不再增加；输送皮带机将料箱运输至后续工位。本方法具有使用方便、误差率小,便于工业化生产的优点。(The invention provides a reconstituted tobacco pre-pressing and packing overweight detection device; the weighing platform is fixed on the support through a plurality of lifting cylinders, the conveying belt conveyor is fixed on the upper side of the weighing platform, the blanking pipeline is fixed on the upper side of the support, and the bidirectional feeding belt conveyor is aligned to the blanking pipeline; one end of a positioning frame of the detection assembly is fixed with the side wall of the support, the other end of the positioning frame is fixed with the non-contact displacement sensor, and the detection baffle is fixedly connected to the side wall of the weighing platform. The invention also provides a method for detecting the feeding weight of the material box by using the reconstituted tobacco pre-pressing and packing overweight detection device, which comprises the following steps: the material box moves to the lower side of the blanking pipeline; the lifting cylinder is synchronously started, and the weighing platform rises; starting the bidirectional feeding belt conveyor, enabling the reconstituted tobacco raw materials to fall into the material box until the weight reaches a preset value, stopping the bidirectional feeding belt conveyor, and preventing the weight of the reconstituted tobacco raw materials in the material box from increasing; the material box is conveyed to a subsequent station by the belt conveyor. The method has the advantages of convenient use, small error rate and convenient industrial production.)

1. the utility model provides a overweight detection device of reconstituted tobacco pre-compaction packing which characterized in that:

Comprises a bracket, a weighing platform, a conveying belt conveyor, a bidirectional feeding belt conveyor, a blanking pipeline and a detection assembly;

The lower part of the weighing platform is fixed at the bottom of the support through a plurality of lifting cylinders, the belt conveyor is fixedly arranged on the upper side of the weighing platform, the upper side of the belt conveyor is a conveying channel of a conveying material box, a discharging pipeline is fixed on the upper side of the support, the upper end of the discharging pipeline is a feeding port, the lower end of the discharging pipeline is a discharging port, the discharging port is aligned to the conveying channel, a gap for the feeding box to pass through is formed between the discharging pipeline and the belt conveyor, and the tail end of the bidirectional feeding belt conveyor;

the detection assembly comprises a positioning frame, a detection baffle and a non-contact displacement sensor, one end of the positioning frame is fixedly connected with the side wall of the support, the other end of the positioning frame extends to the side of the weighing platform, the non-contact displacement sensor is fixedly connected to the end part of the positioning frame extending out of the support, the detection baffle is fixedly connected to the side wall of the weighing platform, and the detection baffle corresponds to the position of the non-contact displacement sensor.

2. the reconstituted tobacco pre-pressing and packing overweight detection device according to claim 1, characterized in that:

the positioning frame comprises a bottom plate, an extension rod and a sensor mounting plate;

bottom plate fixed connection is on the basis support frame of weighing platform, and vertical extension rod fixed connection is on the bottom plate, and the bottom plate adopts welded connection with the extension rod, and the sensor mounting panel adopts welded mode to be connected with the extension rod, and the sensor mounting panel stretches out the support outside, and detection component's non-contact displacement sensor installs on the sensor mounting panel that stretches out the support outside.

3. the method for detecting the feeding weight of the bin by using the reconstituted tobacco pre-pressing and packing overweight detecting device of claim 1 or 2 comprises the following steps:

a) The material box moves to a conveying channel of the belt conveyor, the belt conveyor is started, the material box moves to the lower side of the blanking pipeline, an opening in the upper end face of the material box is aligned with a blanking opening of the blanking pipeline, and the belt conveyor is stopped;

b) The plurality of lifting cylinders are synchronously started, the weighing platform, the belt conveyor and the material box are synchronously lifted, the lifting force of the plurality of lifting cylinders to the weighing platform is a fixed value, the material box is upwards close to a discharging opening of a discharging pipeline, the detection baffle plate and the weighing platform are synchronously lifted, the detection baffle plate is far away from the non-contact displacement sensor, and the non-contact displacement sensor sends a signal to an external controller;

c) starting the bidirectional feeding belt conveyor, conveying the reconstituted tobacco raw materials to the tail end of the bidirectional feeding belt conveyor, enabling the reconstituted tobacco raw materials to fall into the material box through a discharging pipeline, enabling the weight of the reconstituted tobacco raw materials in the material box to be continuously increased, enabling the weighing platform to gradually move downwards, enabling the weight of the reconstituted tobacco raw materials in the material box to reach a preset value, enabling the detection baffle on the side wall of the weighing platform to move downwards to a non-contact displacement sensor sensing area, enabling the non-contact displacement sensor to send a signal to an external controller, stopping the bidirectional feeding belt conveyor, and enabling the weight of the reconstituted;

d) And (3) disconnecting the plurality of lifting cylinders from the air source, starting the belt conveyor, and conveying the material box and the reconstituted tobacco raw materials in the box to a subsequent station by the belt conveyor to finish the method for detecting the feeding weight of the material box.

Technical Field

The invention relates to a device for detecting the overweight of reconstituted tobacco in prepressing and packaging.

The invention also relates to a detection method of the reconstituted tobacco pre-pressing and packaging overweight detection device.

Background

in the production process of reconstituted tobacco in tobacco industry, the finished reconstituted tobacco is subjected to boxing and prepressing treatment according to a certain weight through a prepressing and packaging machine, rechecked through a rechecker, repressed after the weight is within a qualified range, and finally bound, transported and stored through a binding machine.

because the particularity of the reconstituted tobacco dust cannot be avoided in actual production, the original weighing detection device is unreasonable in structural design, is mounted at the bottom of the weighing platform and is easily influenced by the weighing platform, and the weighing platform is overweight, so that extrusion deformation is caused, a photoelectric tube and a travel switch on a track, a pressure head above the weighing platform, a movable material box, a carton positioner and the like are damaged, and a series of equipment is damaged. The failure rate of the pre-pressing packer increases year by year, and the normal production is seriously influenced. In addition, the reduction of the weighing accuracy and reliability of the reconstituted tobacco can also influence the tobacco shred ratio and the cigarette formula accuracy after the reconstituted tobacco enters the tobacco processing line of a cigarette factory, and cause the fluctuation of the internal quality of the cigarette.

Disclosure of Invention

The invention aims to solve the technical problem of providing a reconstituted tobacco pre-pressing and packing overweight detection device which is reasonable in structure and convenient to use.

the invention also provides a detection method of the device for detecting the overweight of the prepressing and packaging of the reconstituted tobacco.

in order to solve the technical problem, the invention provides a reconstituted tobacco pre-pressing and packing overweight detection device;

Comprises a bracket, a weighing platform, a conveying belt conveyor, a bidirectional feeding belt conveyor, a blanking pipeline and a detection assembly;

The lower part of the weighing platform is fixed at the bottom of the support through a plurality of lifting cylinders, the belt conveyor is fixedly arranged on the upper side of the weighing platform, the upper side of the belt conveyor is a conveying channel of a conveying material box, a discharging pipeline is fixed on the upper side of the support, the upper end of the discharging pipeline is a feeding port, the lower end of the discharging pipeline is a discharging port, the discharging port is aligned to the conveying channel, a gap for the feeding box to pass through is formed between the discharging pipeline and the belt conveyor, and the tail end of the bidirectional feeding belt conveyor;

The detection assembly comprises a positioning frame, a detection baffle and a non-contact displacement sensor, one end of the positioning frame is fixedly connected with the side wall of the support, the other end of the positioning frame extends to the side of the weighing platform, the non-contact displacement sensor is fixedly connected to the end part of the positioning frame extending out of the support, the detection baffle is fixedly connected to the side wall of the weighing platform, and the detection baffle corresponds to the position of the non-contact displacement sensor.

After the structure is adopted, the reconstituted tobacco raw materials are conveyed to a blanking pipeline through a bidirectional feeding belt conveyor and fall into a material box through the blanking pipeline, so that the boxing operation of the reconstituted tobacco raw materials is realized; along with the increase of the reconstituted tobacco raw materials in the bin, the device and the reconstituted tobacco raw materials overcome the lifting force of the lifting cylinder by gravity, the detection baffle of the detection assembly and the non-contact displacement sensor sense to generate signals, the bidirectional feeding belt conveyor is stopped to convey the reconstituted tobacco raw materials, and the overweight detection is completed; and the bin and the reconstituted tobacco raw materials with the weight reaching the standard are conveyed to the next process position by a belt conveyor.

the positioning frame of the overweight detection device for prepressing and packaging reconstituted tobacco comprises a bottom plate, an extension rod and a sensor mounting plate;

Bottom plate fixed connection is on the basis support frame of weighing platform, and vertical extension rod fixed connection is on the bottom plate, and the bottom plate adopts welded connection with the extension rod, and the sensor mounting panel adopts welded mode to be connected with the extension rod, and the sensor mounting panel stretches out the support outside, and detection component's non-contact displacement sensor installs on the sensor mounting panel that stretches out the support outside.

After adopting such structure, the structure of locating rack is more concrete, makes things convenient for non-contact displacement sensor's installation, satisfies the overweight detection device's of this reconstituted tobacco pre-compaction packing design requirement.

In order to solve the technical problem, the invention provides a method for detecting the feeding weight of a material box by using the reconstituted tobacco pre-pressing and packing overweight detection device, which comprises the following steps:

a) The material box moves to a conveying channel of the belt conveyor, the belt conveyor is started, the material box moves to the lower side of the blanking pipeline, an opening in the upper end face of the material box is aligned with a blanking opening of the blanking pipeline, and the belt conveyor is stopped;

b) The plurality of lifting cylinders are synchronously started, the weighing platform, the belt conveyor and the material box are synchronously lifted, the lifting force of the plurality of lifting cylinders to the weighing platform is a fixed value, the material box is upwards close to a discharging opening of a discharging pipeline, the detection baffle plate and the weighing platform are synchronously lifted, the detection baffle plate is far away from the non-contact displacement sensor, and the non-contact displacement sensor sends a signal to an external controller;

c) Starting the bidirectional feeding belt conveyor, conveying the reconstituted tobacco raw materials to the tail end of the bidirectional feeding belt conveyor, enabling the reconstituted tobacco raw materials to fall into the material box through a discharging pipeline, enabling the weight of the reconstituted tobacco raw materials in the material box to be continuously increased, enabling the weighing platform to gradually move downwards, enabling the weight of the reconstituted tobacco raw materials in the material box to reach a preset value, enabling the detection baffle on the side wall of the weighing platform to move downwards to a non-contact displacement sensor sensing area, enabling the non-contact displacement sensor to send a signal to an external controller, stopping the bidirectional feeding belt conveyor, and enabling the weight of the reconstituted;

d) And (3) disconnecting the plurality of lifting cylinders from the air source, starting the belt conveyor, and conveying the material box and the reconstituted tobacco raw materials in the box to a subsequent station by the belt conveyor to finish the method for detecting the feeding weight of the material box.

After the method is adopted, when the reconstituted tobacco is boxed, the weighing platform rises, the sensor loses a signal, the bidirectional feeding belt conveyor drives the reconstituted tobacco raw materials to fall into the material box through the blanking pipeline, the reconstituted tobacco raw materials continuously fall down, and when the weighing platform falls down, the detection baffle triggers the non-contact displacement sensor to generate a signal, the bidirectional feeding belt conveyor stops feeding the material box, and feeding of the material box is completed.

The method has the advantages of convenient use, small error rate and convenient industrial production.

drawings

FIG. 1 is a schematic structural view of an embodiment of the device for detecting overweight in prepressing and packing of reconstituted tobacco.

Fig. 2 is a left side view of fig. 1.

fig. 3 is an enlarged view of a portion a of fig. 2.

Detailed Description

As shown in fig. 1 to 3

The overweight detection device of reconstituted tobacco pre-compaction packing comprises a support 1, a weighing platform 2, a conveying belt conveyor 3, a bidirectional feeding belt conveyor 5, a discharging pipeline 4 and a detection assembly 6.

Support 1 is upright cuboid frame construction, and weighing platform 2 lower part is fixed in the bottom of support 1 through four lift cylinders 21, and four lift cylinders 21 are the rectangle and distribute in the four corners department of weighing platform 2 downside, and the cylinder body of every lift cylinder 21 passes through the bolt fastening with support 1, and the piston of every lift cylinder 21 passes through the bolt fastening with weighing platform 2 to every lift cylinder 21 all is connected with the air supply through the air-vent valve (not shown in the figure), guarantees that four lift cylinders 21 lift when starting is the same.

conveyor belt 3 fixed mounting is in 2 upsides of weighing platform, conveyor belt 3 upsides is the transfer passage 31 of conveying workbin 7, the welding of unloading pipeline 4 is on 1 upper portion of support, the feeding port is located at the upper end of unloading pipeline 4, the lower extreme of unloading pipeline 4 is the feed opening, the feed opening aims at transfer passage 31, the clearance that feed tank 7 passes through has between unloading pipeline 4 and the conveyor belt 3, the basic support frame lower extreme and the 1 up end welded fastening of support of two-way feed belt 5, the top of two-way feed belt 5 is in the 1 outside of support, the last port of unloading pipeline 4 is aimed at to the end of two-way feed belt 5.

The detection assembly 6 comprises a positioning frame, a detection baffle 63 and a non-contact displacement sensor 62;

The positioning frame comprises a bottom plate 61a, an extension rod 61b and a sensor mounting plate 61c, wherein the bottom plate 61a is a 50 x 70 x 5Q 235 steel plate, the bottom plate 61a is horizontally arranged, and one end of the bottom plate 61a is welded on a basic supporting frame of the weighing platform 2;

The vertical extension rod 61b is welded on the bottom plate 61a, the sensor mounting plate 61c is connected with the extension rod 61b in a welding mode, the sensor mounting plate 61c extends out of the outer side of the support 1, a hole is drilled in the position, 55mm away from the welding position, of the center line of the sensor mounting plate 61c, a hole is drilled in the position, 50mm away from the welding position, of the same center line of the sensor mounting plate 61c, the non-contact displacement sensor 62 is an inductive non-contact sensor, the width of the non-contact displacement sensor 62 is 40mm, the non-contact displacement sensor 62 is matched with the sensor mounting plate 61c through M3 & gt60 bolts, and the non-contact displacement sensor 62 is mounted on the sensor mounting plate 61c extending out;

The detection baffle 63 is fixedly connected to the side wall of the basic support frame of the weighing platform 2, the detection baffle 63 corresponds to the position of the non-contact displacement sensor 62, and when the detection baffle 63 triggers the non-contact displacement sensor 62, the distance between the non-contact displacement sensor 62 and the detection baffle 63 is 10mm, which is the sensing distance.

the method for detecting the feeding weight of the material box 7 by utilizing the reconstituted tobacco pre-pressing and packing overweight detection device comprises the following steps:

a) The material box 7 moves to the conveying channel 31 of the belt conveyor 3, the belt conveyor 3 is started, the material box 7 moves to the lower side of the blanking pipeline 4, the opening of the upper end face of the material box 7 is aligned with the blanking port of the blanking pipeline 4, and the belt conveyor 3 is stopped.

b) The lifting cylinders 21 are synchronously started, the weighing platform 2, the belt conveyor 3 and the material box 7 synchronously ascend, the lifting force of the weighing platform 2 by the lifting cylinders 21 is constant, the material box 7 is upwards close to a discharging opening of the discharging pipeline 4, the detection baffle 63 synchronously ascends with the weighing platform 2, the detection baffle 63 is far away from the non-contact displacement sensor 62, and the non-contact displacement sensor 62 sends signals to an external controller;

c) Starting the bidirectional feeding belt conveyor 5, conveying reconstituted tobacco raw materials to the tail end of the bidirectional feeding belt conveyor 5, enabling the reconstituted tobacco raw materials to fall into the material box 7 through the blanking pipeline 4, enabling the weight of the reconstituted tobacco raw materials in the material box 7 to be continuously increased, enabling the gravity of the weighing platform 2, the conveying belt conveyor 3, the material box 7 and the reconstituted tobacco raw materials to overcome the lifting force of the plurality of lifting cylinders 21, enabling the weighing platform 2 to gradually move downwards, enabling the weight of the reconstituted tobacco raw materials in the material box 7 to reach a preset value, wherein the preset value is 150kg, enabling the detection baffle 63 on the side wall of the weighing platform 2 to move downwards to a sensing area of the non-contact displacement sensor 62, enabling the non-contact displacement sensor 62 to send a signal to an;

d) and (3) disconnecting the plurality of lifting cylinders 21 from the air source, starting the belt conveyor 3, and conveying the material box 7 and the reconstituted tobacco raw materials in the box to a subsequent station by the belt conveyor 3 to finish the method for detecting the feeding weight of the material box 7.

In addition, the method can be used in cooperation with a PLC control circuit or a singlechip control circuit to realize full-automatic control through a programmed software program, after the program starts to run, a programmable controller judges the running state of the weighing platform 2, when the weighing platform 2 is in a manual or stop state, the next step is not carried out, when the weighing platform 2 is in an automatic running state, weighing and falling detection signals of the weighing platform 2 are read, when the detection signal of the weighing platform 2 rises, the finished reconstituted tobacco leaves are produced and fed, and the weighing platform 2 is normally weighed and metered; when the detection signal of the weighing platform 2 falls, the reconstituted tobacco raw material is shown to reach the specified weight or the next box-out process is carried out, and the method belongs to a normal working flow.

After the detection signal of the weighing platform 2 rises, the actual weight value of each box of finished reconstituted tobacco raw material of the weighing platform 2 is read through data transmission by a Profibus-DP network, and the programmable controller program performs corresponding digital-to-analog conversion to calculate the weight of the reconstituted tobacco raw material of the weighing platform 2.

at the moment, when the raw material of each box of finished reconstituted tobacco is more than 150kg, the bidirectional feeding belt conveyor 5 stops running, and an overweight alarm signal is output. After the technician performs maintenance and recalibration, the system is reset back again and the programmable controller begins the next program cycle.

in the process of feeding back and forth by the bidirectional feeding belt conveyor 5, the weighing standard-reaching signal has relative hysteresis, so that the scattered and falling phenomena of reconstituted tobacco can occur, the raw material of the finished reconstituted tobacco is more than 150kg, and the false alarm state occurs. Therefore, when the error range of each box of finished product reconstituted tobacco is within 1% by comparing the weight of each box of finished product reconstituted tobacco with the set weight of 150kg, the box is not considered to be an overweight fault, and the prepressing and packaging machine operates normally.

the above description is only one embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as falling within the protection scope of the present invention.