CN113306816B - Automatic batch feeder - Google Patents
Automatic batch feeder Download PDFInfo
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- CN113306816B CN113306816B CN202110641188.8A CN202110641188A CN113306816B CN 113306816 B CN113306816 B CN 113306816B CN 202110641188 A CN202110641188 A CN 202110641188A CN 113306816 B CN113306816 B CN 113306816B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0008—Opening and emptying bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
- B65G17/065—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the load carrying surface being formed by plates or platforms attached to a single traction element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/40—Chains acting as load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
- B65G47/248—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/901—Devices for picking-up and depositing articles or materials provided with drive systems with rectilinear movements only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0235—Containers
- B65G2201/0238—Bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses an automatic batch feeder which comprises an unpacking conveying platform, a multi-stage conveying chain, an automatic pulp feeder and a chain plate conveyor, wherein the unpacking conveying platform, the multi-stage conveying chain, the automatic pulp feeder and the chain plate conveyor are sequentially connected, a bag lifting machine is arranged on the unpacking conveying platform, the multi-stage conveying chain comprises at least two stages of conveying chains which are continuously conveyed, the two adjacent stages of conveying chains are matched to ensure that only a single bag of pulp is conveyed on each stage of conveying chain, and the chain plate conveyor is connected with a pulp kneader. The invention realizes the continuous automatic control of pulp from unpacking, multi-stage single-package conveying and pulp feeding to the pulper, the multi-stage single-package conveying can ensure the stability of the equipment in the continuous operation process, and the stable operation of the continuous automatic feeding of the pulp is realized.
Description
Technical Field
The invention relates to an automatic batch feeder, in particular to an automatic batch feeder suitable for continuous feeding of pulp, and belongs to the field of feeding equipment for pulp gum production.
Background
The viscose fiber is a viscose fiber product prepared by taking pulp as a raw material, performing alkalization procedures such as alkali liquor immersion, squeezing and the like, separating particle impurities and hemicellulose in the pulp to generate alkali cellulose, and then performing subsequent production. Pulp feeding is a key process for stock solution viscose preparation, and in order to ensure stable dipping concentration and yield in the feeding process, concentration adjustment needs to be carried out on alkali liquor and pulp, so that stable process and efficiency of a squeezing process and normal operation of equipment are ensured.
At present, when pulp is fed, the pulp is horizontally conveyed to a pulp feeding machine through a conveying belt, a plate turnover device is arranged at the front end of a feeding port, and the pulp needs to be turned over once after being conveyed to the plate turnover device through the conveying belt, so that the pulp is in an inclined state and then is fed in a paper separating mode in an inclined mode through the pulp feeding machine. In the prior art, the pulp is firstly manually disassembled from the outer package on the ground, and then is transported to a conveyor belt by a crane or a material transporting trolley, and then is controlled by a system to carry out the procedures of conveying, turning over the package, feeding the pulp and the like. The existing semi-automatic production mode often has the following problems: the weight of the pulp is large, and the manual removal of the pulp external package is quite difficult; the risk of manually removing the pulp outer package is high; the automation degree is low, and the continuity of the glue production flow is poor. Therefore, in order to solve the above-mentioned defects of pulp feeding, it is critical to realize continuous automatic feeding of pulp.
Utility model patents with publication numbers CN203450746U and CN 204280767U both disclose an automatic feeder suitable for pulp feeding, the latter adds a receiving turnover mechanism on the basis of the former, simplifies the process of raising pulp and reduces the labor consumption; secondly, the latter improves the angle of the blades and the number of the blades by designing a novel rotating blade, optimizes the material turning process, and is provided with a gap for the rotating blade to turn upwards between novel material conveying belts for facilitating the material turning, so that the smooth operation of the rotating process is ensured; and finally, after the material level of the material is sensed by the sensing probe, the material pushing mechanism is supported and controlled by the air cylinder to move back and forth and up and down, so that material pushing and feeding are realized, and the automation degree and efficiency are improved. However, the conveying and feeding mode is that the conveying chain conveys a plurality of unpacked pulp sheets at the same time, once the conveying belt fails to stop in time in the conveying process, a large amount of pulp sheets are stacked together, the weight borne by the blades is changed from the previous one into a plurality of bags, the weight is difficult to overcome by the motor, the pulp sheets need to be processed by people, and the processing process is complex.
Disclosure of Invention
The invention aims to provide an automatic batch feeder, which realizes the continuous automatic control of pulp from unpacking, multi-stage single-package conveying and pulp feeding to a pulper, and the multi-stage single-package conveying can ensure the stability of equipment in the continuous operation process and realize the stable operation of continuous automatic pulp feeding.
The invention is realized by the following technical scheme: an automatic batch feeder comprises an unpacking conveying platform, a multi-stage conveying chain, an automatic meal feeding machine and a chain plate conveyor which are sequentially connected, wherein a bag lifting machine is arranged on the unpacking conveying platform, the multi-stage conveying chain comprises at least two stages of conveying chains which are continuously conveyed, the adjacent two stages of conveying chains are matched with each other to ensure that only single-bag pulp is conveyed on each stage of conveying chain, and the chain plate conveyor is connected with a pulper.
The ladle machine comprises a rack, a lifting cylinder, a ladle clamping cylinder and a manipulator, wherein the lifting cylinder and the ladle clamping cylinder are sequentially arranged from top to bottom, the lifting cylinder is fixed above the unpacking conveying table through the rack, the lifting cylinder is connected with the ladle clamping cylinder and controls the ladle clamping cylinder to vertically move, and the ladle clamping cylinder controls the manipulator to act on pulp.
The multistage conveying chain comprises at least two stages of conveying chains which are continuously conveyed, an inductor is arranged on each stage of conveying chain, whether pulp exists on each stage of conveying chain is judged, and the following operations are carried out on the adjacent two stages of conveying chains according to the judgment result:
when pulp exists on the upper-stage conveying chain and pulp exists on the lower-stage conveying chain, stopping a motor of the lower-stage conveying chain;
when pulp exists on the upper-stage conveying chain and no pulp exists on the lower-stage conveying chain, the motor of the lower-stage conveying chain is started;
when no pulp exists on the upper-level conveying chain and pulp exists on the lower-level conveying chain, motors of the upper-level conveying chain and the lower-level conveying chain are both started;
when no pulp exists on the upper-level conveying chain and no pulp exists on the lower-level conveying chain, the motor on the lower-level conveying chain is started.
An inductor is arranged at an outlet of the unpacking and conveying platform, whether pulp passes through is judged, and the unpacking and conveying platform and a conveying chain connected with the unpacking and conveying platform carry out the following operations according to judgment:
when pulp is arranged at the outlet of the unpacking and conveying platform and no pulp exists on the conveying chain connected with the unpacking and conveying platform, a motor of the unpacking and conveying platform is started;
when the pulp is arranged at the outlet of the unpacking and conveying platform and the pulp is arranged on the conveying chain connected with the unpacking and conveying platform, the motor of the unpacking and conveying platform is stopped.
The automatic meal feeding machine comprises a meal feeding conveying chain, a turning plate and a paging knife, wherein the turning plate and the paging knife are sequentially arranged along the feeding direction of the meal feeding conveying chain, the turning plate is connected with the multi-stage conveying chain and is rotatably arranged on the automatic meal feeding machine, a baffle plate for supporting pulp is arranged between the turning plate and the paging knife, and the baffle plate reciprocates between the turning plate and the paging knife.
And a conveying plate with a pulley is obliquely arranged at the tail end of the multistage conveying chain, and the pulp is conveyed to the turning plate by the multistage conveying chain in a sliding manner.
The front end of the turning plate is respectively provided with two groups of inductors, whether pulp exists on the conveying plate or not and whether pulp turning is finished or not are respectively judged, and the turning plate and a conveying chain connected with the conveying plate carry out the following operations according to judgment:
when no pulp exists on the conveying plate, the conveying chain is started and conveys the pulp to the turning plate;
when pulp exists on the conveying plate, the conveying chain stops conveying the pulp to the conveying plate;
when the turning plate turns the pulp and places the pulp in the pulp feeding conveying chain, the turning plate stops rotating.
The baffle passes through the hold-in range that clutch cylinder drove and feeds the dregs of a meal conveying chain synchronous, and the baffle is connected with the return stroke cylinder, is equipped with three group's inductors in proper order along pulp conveying direction, and three group's inductors cooperate with the baffle in proper order and control the clutch respectively and combine, turn over board upset and clutch separation, and the baffle, turn over board and hold-in range carry out following operation according to control:
A. when the baffle plate is in contact with the first group of sensors, the clutch is controlled to be combined, the clutch cylinder drives the synchronous belt to be synchronous with the meal feeding conveying chain, and the baffle plate is synchronous with the meal feeding conveying chain;
B. when the baffle is contacted with the second group of sensors, the turning plate is controlled to turn over;
C. and B, when the baffle is in contact with the third group of sensors, controlling the clutch to be separated, and when the return cylinder is started to enable the baffle to be retracted to the first group of sensors, repeating the operation in the step A.
The baffle plate cylinder is arranged on the baffle plate, when the clutch cylinder is started, the baffle plate cylinder is started, and the baffle plate is lifted upwards to enable pulp to be obliquely arranged on the pulp feeding conveying chain and support the pulp; when the clutch cylinder stops, the baffle cylinder stops and the baffle descends.
When the baffle contacts the second group of sensors, the turning plate is controlled to support the pulp on the pulp feeding conveying chain.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention adopts a multi-stage single-package conveying mode, the inductor is arranged on each stage of conveying chain and is used for detecting whether the pulp reaches the stage of conveying chain, and the start and stop of the conveying chain are controlled by a program, so that the condition that only single-package pulp can pass through each stage of conveying chain is ensured, the condition that pressure is caused on subsequent pulp feeding equipment by simultaneous conveying of multiple packages of pulp during multi-stage continuous conveying is avoided, and the stable operation of the pulp continuous feeding process can be ensured.
(2) The pulp unpacking machine can realize automation of pulp unpacking, the lifting cylinder is matched with the bag clamping cylinder, the manipulator is controlled to clamp pulp and lift the pulp, and only the package bag needs to be unpacked and taken out manually, so that the labor intensity of manual unpacking is greatly reduced; meanwhile, the pulp is conveyed by the unpacking conveying platform, the unpacking conveying platform stops during unpacking, and the system judges the pulp according to the inductor at the outlet of the unpacking conveying platform and the inductor of the conveying chain connected with the inductor, so that the pulp is prevented from being stacked on the conveying chain, and the stable operation of the pulp continuous feeding process is ensured.
(3) The pulp is provided with the conveying plate at the tail end of the multi-stage single-bag conveying, the pulp is conveyed onto the conveying plate through multiple stages, and the pulp can slide down to the turning plate along the pulley of the pulp by gravity, so that a mechanical transmission structure in front of a pulp feeding blade can be reduced, and the safety in the operation process is improved; in the actual operation process, even if multiple packages of materials are accumulated on the rotating blades of the turning plate due to program runaway or other reasons, the materials can be pushed away upwards through the pulleys, and the continuous operation of the equipment is ensured.
(4) The inductor is arranged at the front end of the turning plate, and through the matching of the inductor of the conveying chain connected with the inductor, the automatic control of the turning plate can be realized, the accumulation of a plurality of packages of materials on the rotating blades of the turning plate can be avoided, and the stable operation of the pulp continuous feeding process is ensured.
(5) The automatic pulp feeding device can realize automatic pulp feeding operation of pulp, the pulp is obliquely placed on the pulp feeding conveying chain after being turned over through the turning plate, the oblique pulp is supported by the baffle plate, the baffle plate synchronously conveys the pulp along with the pulp feeding conveying chain, the obliquely arranged pulp is more easily paged by the paging knife, and the uniformity of pulp feeding is ensured.
(6) The pulp feeding device can realize continuous feeding of pulp, the baffle plate is synchronous with the pulp feeding conveying chain through the synchronous belt driven by the clutch cylinder, the baffle plate is connected with the return cylinder, and when moving along with the synchronous belt, the baffle plate is sequentially contacted with the three groups of sensors, so that the reciprocating motion of the baffle plate between the pulp feeding conveying chains can be realized, meanwhile, the stretching of the baffle plate is controlled to support the pulp, in addition, the turnover of the turnover plate can be controlled again, so that the pulp on the pulp feeding conveying chain is further conveyed forwards, and the pulp feeding efficiency is improved.
(7) The pulp is subjected to paging when the pulp feeding is finished, the paged pulp is conveyed into the pulp kneader by the chain plate, and the chain plate conveying needs to continuously run to ensure the continuity of automatic pulp feeding in order to match the continuous pulp feeding operation of the pulp.
In conclusion, the automatic pulp feeder provided by the invention is characterized in that a bale breaker, a multistage conveying chain, an automatic pulp feeder and a chain plate conveyor are used for continuously and automatically controlling pulp, a multistage single-package conveying mode and stable matching of continuous operation among all working procedures are provided for the stability of pulp feeding for the first time, and meanwhile, the pulp feeding mode is optimized for improving the uniformity of pulp feeding, the stability of automatic pulp feeding is greatly improved, the manual labor intensity is reduced by adopting program system control, and the automatic pulp feeder is suitable for industrial mass production.
Drawings
FIG. 1 is a schematic process flow diagram of the present invention.
Fig. 2 is a schematic view of the structure of the bale breaker of the present invention.
Fig. 3 is a schematic structural view of the multi-stage conveying chain of the present invention.
Fig. 4 is a schematic structural diagram of the automatic meal feeding machine of the invention.
The automatic material feeding device comprises a bale breaking conveying table 1, a multi-stage conveying chain 2, an automatic material feeding machine 3, a chain plate conveyor 4, a ladle lifting machine 5, a conveying chain 6, a pulper 7, a rack 8, a lifting cylinder 9, a bale clamping cylinder 10, a manipulator 11, a material feeding conveying chain 12, a turning plate 13, a paging knife 14, a baffle 15, a conveying plate 16, a clutch cylinder 17, a return cylinder 18, a baffle cylinder 19, a ladle turning position travel switch 20, a baffle forward travel switch 21, a flap travel switch 22 and a baffle final travel switch 23.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1:
this embodiment is an automatic batch feeder. By adopting the structure shown in fig. 1, pulp is conveyed to the pulper 7 after passing through the bale breaker, the multistage conveying chain 2, the automatic pulp feeder 3 and the chain plate conveyor 4, and is mixed and allocated with alkali liquor in the pulper 7, and by adopting multi-stage conveying and interlocking control, the automatic control of the pulp feeding process can be realized, the stability of continuous feeding can be improved, the uniformity of pulp feeding is ensured, and the product performance of subsequent viscose fibers is improved. The specific structure and the feeding process outline are as follows:
unpacking machine: the bale breaker comprises bale breaking conveying platform 1 and two-man ladle machine 5, and it locates bale breaking conveying platform 1 top to lift sack machine 5, is provided with a lift cylinder 9 and a press from both sides a package cylinder 10, and lift cylinder 9 sets gradually from top to bottom with pressing from both sides package cylinder 10, and lift cylinder 9 is fixed in the top of bale breaking conveying platform 1 through frame 8, and lift cylinder 9 connects press from both sides package cylinder 10 and control press from both sides package cylinder 10 vertical movement, and press from both sides package cylinder 10 control manipulator 11 and act on the pulp. When the pulp unpacking machine is used, the packed pulp is sent to the unpacking conveying table 1, and after the pulp is sensed by the bag lifting machine 5 on the unpacking conveying table 1, the motor of the unpacking conveying table 1 stops; the lifting cylinder 9 and the bag clamping cylinder 10 of the bag lifting machine 5 are started, the bag clamping cylinder 10 controls the mechanical arm 11 to clamp the pulp, the pulp is lifted up through the lifting cylinder 9, the lifting cylinder 9 and the bag clamping cylinder 10 are continuously operated, the pulp is placed on the unpacking conveying table 1 again, the motor of the unpacking conveying table 1 is started, and the pulp is continuously conveyed to the multistage conveying chain 2.
In a specific embodiment, for the unpacking machine, a conveying motor with 1.5KW and two pairs of photoelectric switches are configured for the unpacking conveying table 1, the conveying motor is used for controlling the conveying start and stop of the unpacking conveying table 1, and the photoelectric switches are respectively arranged at the rear end of the unpacking conveying table 1 (below the unpacking machine 5) and at the outlet of the unpacking conveying table 1. As shown in fig. 2, the unpacking steps are as follows:
the packed pulp is placed on the unpacking conveyor table 1 by a forklift, and the operator presses the manual button-1 (F) 1 ) The conveying motor is started, pulp is conveyed to the position below the bale lifting machine 5 through the bale breaking conveying table 1, when the pulp is conveyed to a photoelectric switch-1 (a) at the rear end of the bale breaking conveying table 1, an electric eye senses the pulp and transmits a signal to the interlocking system, the system transmits a stop instruction to a motor controller of a chain of the bale breaking conveying table, the conveying motor stops, the chain of the bale breaking conveying table stops, and at the moment, an operator can manually unpack the pulp package below the bale lifting machine 5.
Then press the manual button-2 (F) 2 ) The system transmits a command to the electromagnetic reversing valve, the electromagnetic reversing valve is ventilated to a lifting cylinder 9 of the ladle lifting machine 5, and the manipulator 11 moves downwards to a certain height under the action of the lifting cylinder 9, wherein the height is determined by the action distance of the lifting cylinder 9; at this moment, lift cylinder 9 downwardly extending is the longest, lift cylinder 9 is sensed to the electromagnetic induction ware on the lift cylinder 9 and is stretched the longest, transmission signal to the system, the system judges that manipulator 11 has fallen to the assigned height, send instruction to the electromagnetic directional valve, the electromagnetic directional valve is ventilated to and is pressed from both sides a packet cylinder 10, under the effect of pressing from both sides packet cylinder 10, manipulator 11 presss from both sides tight pulp, the electromagnetic induction ware on pressing from both sides packet cylinder 10 senses that die clamping cylinder has extended to the biggest, transmission signal to the system, the system assigns the instruction again to the electromagnetic directional valve, the electromagnetic directional valve changes lift cylinder 9 direction of ventilating, lift cylinder 9 rises, pulp follows manipulator 11 and rises together, at this moment, operating personnel can be very relaxed take off pulp extranal packing.
When the outer package is removed, a manual button-2 is pressed (F) 2 ) (the electromagnetic inductor on the lifting cylinder 9 senses that the lifting cylinder 9 is withdrawn and transmits a signal to the system, the operation button is pressed at the moment to be effective operation, and if the system does not receive the cylinder position information sent back by the electromagnetic inductor, the system is pressedAn operation button is invalid operation), the electromagnetic directional valve changes the ventilation direction of the lifting cylinder 9 again, the bag clamping cylinder 10 and the mechanical arm 11 are lowered and lowered to the designated height again, the electromagnetic inductor on the lifting cylinder 9 sends information to the system, the system transmits an instruction to the electromagnetic directional valve, the ventilation direction of the bag clamping cylinder 10 is changed, the mechanical arm 11 is loosened, the electromagnetic inductor on the bag clamping cylinder 10 transmits information to the system, the system sends an instruction to the electromagnetic directional valve, the ventilation direction of the lifting cylinder 9 is changed again, the lifting cylinder 9 drives the bag clamping cylinder 10 and the mechanical arm 11 to be lifted, when the lifting cylinder 9 reaches the highest point, the electromagnetic sensor transmits information to the system, the system stops sending an instruction to the electromagnetic directional valve, the electromagnetic directional valve is cut off, a signal is fed back to the system, the system makes a judgment, the chain of the unpacking conveying table can be started, and at the moment, the manual button-1 (F) is pressed. 1 ) And the conveying motor is started again.
When the pulp reaches the photoelectric switch-2 (b) (the outlet from the unpacking conveying platform 1), the conveying chain-1 (A) is started, the pulp leaves the photoelectric switch-2 (b) of the unpacking conveying platform 1, the conveying motor of the unpacking conveying platform 1 is stopped, the pulp reaches the photoelectric switch-3 (c) of the conveying chain-1 (A), and the conveying chain-1 (A) is stopped. (when the photoelectric switch-3 (c) of the conveying chain-1 (A) senses the pulp, the manual button-2 (F) of the unpacking conveying table 1 2 ) Conveyor motor incapable of starting
Multistage conveying chain 2: the device comprises at least two stages of conveying chains 6 which are continuously conveyed, an inductor is arranged on each stage of conveying chain 6, whether pulp exists on each stage of conveying chain 6 or not is judged, and the adjacent two stages of conveying chains 6 are matched to ensure that only a single package of pulp is conveyed on each stage of conveying chain 6.
In a specific embodiment, 5 stages of conveying chains 6 for continuous conveying are arranged for the multi-stage conveying chain 2, a conveying motor of 1.5KW is configured for each stage of conveying chain 6, and a pair of photoelectric switches is arranged at the forefront end of each stage of conveying chain 6, as shown in FIG. 3. The conveyor chain 6 has the following conveyor motor operating conditions:
(1) the photoelectric switch-7 (g) detects that no pulp exists on the conveying chain-5 (E), the photoelectric switch-6 (f) detects that pulp exists on the conveying chain-4 (D), 2 seconds later, the conveying motor of the conveying table-5 (E) is started, the conveying motor of the conveying chain-4 (D) is started, and the pulp is conveyed to the conveying chain-5 (E) through the conveying chain-4 (D). When the photoelectric switch-7 (g) detects the pulp, the conveying motor of the conveying chain-5 (E) stops running.
(2) The photoelectric switch-6 (f) detects that the conveying chain-4 (D) has no pulp, the conveying motor of the conveying chain-4 (D) continues to operate, the photoelectric switch-5 (e) detects that the pulp exists on the conveying chain-3 (C) (if the photoelectric switch-5 (e) detects that the pulp does not exist, the conveying chain-3 (C) stops operating immediately), 2 seconds later, the conveying motor of the conveying chain-3 (C) is started, and the pulp is conveyed to the conveying chain-4 (D) by the conveying chain-3 (C). When the photoelectric switch-6 (f) detects the pulp, the conveying motor of the conveying chain-4 (D) stops running.
(3) The photoelectric switch-5 (e) detects that the conveying chain-3 (C) has no pulp, the conveying motor of the conveying chain-3 (C) continues to operate, the photoelectric switch-4 (D) detects that the pulp exists on the conveying chain-2 (B) (if the photoelectric switch-4 (D) detects that the pulp does not exist, the conveying chain-2 (B) stops operating immediately), 2 seconds later, the conveying motor of the conveying chain-2 (B) is started, and the conveying chain-2 (B) conveys the pulp to the conveying chain-3 (C). When the photoelectric switch-5 (e) detects the pulp, the conveying motor of the conveying chain-3 (C) stops running.
(4) The photoelectric switch-4 (d) detects that the conveying chain-2 (B) has no pulp, the conveying motor of the conveying chain-2 (B) continues to operate, the photoelectric switch-3 (c) detects that the pulp exists on the conveying chain-1 (A) (if the photoelectric switch-3 (c) detects that the pulp does not exist, the conveying chain-1 (A) stops operating immediately), 2 seconds later, the conveying motor of the conveying chain-1 (A) is started, and the pulp is conveyed to the conveying chain-2 (B) by the conveying chain-1 (A). When the photoelectric switch-4 (d) detects the pulp, the conveying motor of the conveying chain-2 (B) stops running.
Based on the operation conditions, when the 5-stage conveying chain continuously operates, in order to ensure that each stage of conveying chain 6 only supplies single package of pulp, when the photoelectric switch-7 (g) of the conveying chain-5 (E) senses pulp, the conveying motor of the conveying chain-5 (E) stops, when the photoelectric switch-6 (f) of the conveying chain-4 (D) senses pulp, the conveying motor of the conveying chain-4 (D) stops, when the photoelectric switch-5 (E) of the conveying chain-3 (C) senses pulp, the conveying motor of the conveying chain-3 (C) stops, when the photoelectric switch-4 (D) of the conveying chain-2 (B) senses pulp, the conveying motor of the conveying chain-2 (B) stops, and when the photoelectric switch-3 (C) of the conveying chain-1 (A) senses pulp, the conveying motor of the unpacking conveying table 1 stops, the starting of the conveying chain 1-5 is performed on the premise that a photoelectric switch at the rear end or the front end senses pulp and judges whether materials exist or not, otherwise, the conveying chain is not started.
Automatic feed dregs of rice machine 3: comprises a turning plate 13, a feed meal conveying chain 12, a baffle plate 15, a paging knife 14 and other structures. When the pulp turning machine is used, pulp is conveyed to the turning plate 13 through the multistage conveying chain 2, the turning plate motor is started, the turning plate 13 rotates to turn the pulp, the turning plate 13 contacts the bag turning position travel switch 20, and the turning plate motor stops; starting the baffle 15, obliquely placing the turned pulp on the pulp feeding conveying chain 12, supporting the pulp, and controlling the baffle 15 and the pulp feeding conveying chain 12 to synchronously convey the pulp; pulp is sent to a separation knife 14 at the front end of the pulp feeding conveying chain 12 to be separated and then sent to the chain plate conveyor 4, the baffle 15 is reset, and the operation is repeated.
In a specific embodiment, three motors (each with a frequency converter of 0.75 KW), three cylinders, four pairs of travel switches, and a pair of photoelectric switches are mounted on the automatic meal feeding machine 3, wherein the three motors are a paging knife motor, a conveying motor of the meal feeding conveying chain 12, and a flap motor, respectively, and the paging knife motor and the conveying motor of the meal feeding conveying chain 12 are normally open. The three cylinders are a clutch cylinder 17, a return cylinder 18 and a baffle cylinder 19. The four pairs of travel switches are respectively a pulp turning position travel switch 20 arranged at the front end of the turning plate 13, and a baffle plate advancing travel switch 21, a turning plate travel switch 22 and a baffle plate end travel switch 23 which are sequentially arranged along the running direction of the pulp feeding conveying chain 12. A pair of photoelectric switches-8 (h) are arranged at the front end of the turning plate 13.
As shown in FIG. 4, in order to ensure the operation reliability of the turning plate 13, an inclined conveying plate 16 is arranged at the tail end of the conveying chain-5 (E), and pulleys are arranged on the conveying plate 16, so that the pulp can slide down to the turning plate 13 by gravity. When the pulp is detected by the photoelectric switch-8 (h), the turning plate motor is started, and the turning plate 13 starts to turn the pulp. After the turning plate 13 touches the turning position travel switch 20, the frequency of the turning plate motor is modulated to be 0Hz, the turning plate 13 stops rotating, the clutch cylinder 17 and the baffle cylinder 19 are started, the clutch cylinder 17 advances, the gear is meshed, the baffle 15 rises, pulp falls on the pulp feeding conveying chain 12, and the baffle 15 is driven by the synchronous belt to advance synchronously along with the pulp. After the turning plate 13 touches the package turning position travel switch 2010s and the pulp is detected by the photoelectric switch-7 (g), a conveying motor of the conveying chain-5 (E) is started, the pulp is conveyed to the conveying plate 16, the pulp slides down to the turning plate 13 along a pulley of the conveying plate 16, and after the photoelectric switch-7 (g) detects that no pulp exists, the motor of the conveying chain-5 (E) is closed. The baffle 15 advances, passes through the turning plate travel switch 22, the frequency of the turning plate motor is adjusted to a preset value, the turning plate 13 starts to turn over the pulp, and the turning plate 13 starts to rotate and gradually supports the pulp in front. The baffle 15 passes through the baffle terminal travel switch 23, the return cylinder 18 and the baffle cylinder 19 are started, the baffle 15 is folded, the baffle 15 returns to the initial position under the driving of the return cylinder 18, the baffle advance travel switch 21 is touched, and the baffle 15 repeats the operation. The latter pulp begins to fully support the former pulp. The turning plate 13 continuously turns over, after the turning plate contacts the turning position travel switch 20, the frequency of the turning plate motor is modulated to be 0Hz, the turning plate 13 stops rotating, and the operation is carried out according to a program.
The chain scraper conveyor 4: as shown in fig. 1, an automatic pulp feeder 3 and a pulper 7 are connected to feed the sorted pulp to the pulper 7. Normally open operation, motor power 5.5KW, inverter motor, the rotational speed is controlled by the converter. Emergency stop requirement: when the chain plate conveyor 4 stops, the meal feeding conveying chain 12 stops.
Example 2:
using the pulp automatic feeder described in example 1, the pulp consistency in the pulper 7 was sampled and tested in a specific example and compared to a prior art process using semi-automatic pulp feeding, as shown in table 1 below.
Table 1 comparative data on slurry concentration
In another specific embodiment, for example, in the stock solution preparation process of viscose fiber production, the pulp automatic feeder is adopted at the front end, so that not only the stability of the pulp dipping process but also the stability of the pressing and ageing processes can be ensured.
The squeezing has the function of squeezing out redundant alkali liquor, removing hemicellulose and impurities and ensuring the stability of the content of the alpha-cellulose. Therefore, under the premise of the same pressing process, the qualification rate of the content of the alpha-cellulose in the pressing process is improved to 95 percent from 80 percent before the pulp is used by using the automatic pulp feeder in the embodiment 1.
The ageing effect is that the alkali cellulose is kept for a certain time at a constant temperature, and is oxidized and degraded in the air, the polymerization degree is reduced to meet the process requirement, and meanwhile, the narrower the distribution of the polymerization degree, the better the strength of the fiber is. Therefore, on the premise of the same aging process, after the pulp automatic batch feeder in the embodiment 1 is adopted, the aging process parameters are as follows: the qualification rate of the polymerization degree can be improved by 10 percent.
Therefore, the stability of the pulp automatic feeding process can ensure that the polymerization degree process is more stable and the polymerization degree distribution is smaller. Therefore, in the continuous production process of viscose fiber, the strength of the viscose product before use can be improved from 2.60cN/dex to 2.72cN/dex by using the pulp automatic feeding process of example 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. An automatic batch feeder which is characterized in that: comprises an unpacking conveying platform (1), a multi-stage conveying chain (2), an automatic meal feeding machine (3) and a chain plate conveyor (4) which are connected in sequence, wherein a bale lifting machine (5) is arranged on the unpacking conveying platform (1),
multistage conveying chain (2) include conveying chain (6) that at least two-stage continuous transport, cooperate between adjacent two-stage conveying chain (6) to only supply single package pulp to carry on guaranteeing every stage of conveying chain (6), pulper (7) are connected in drag chain conveyor (4), establish the inductor on every stage of conveying chain (6) to judge whether there is pulp on every stage of conveying chain (6), adjacent two-stage conveying chain (6) carry out following operation according to the judged result:
when pulp is on the upper-stage conveying chain and pulp is on the lower-stage conveying chain, stopping a motor of the lower-stage conveying chain;
when pulp exists on the upper-stage conveying chain and no pulp exists on the lower-stage conveying chain, a motor of the lower-stage conveying chain is started;
when no pulp exists on the upper-level conveying chain and pulp exists on the lower-level conveying chain, motors of the upper-level conveying chain and the lower-level conveying chain are both started;
when the upper-level conveying chain has no pulp and the lower-level conveying chain has no pulp, the motor on the lower-level conveying chain is started,
the automatic meal feeding machine (3) comprises a meal feeding conveying chain (12), a turning plate (13) and a paging knife (14) which are sequentially arranged along the feeding direction of the meal feeding conveying chain (12), the turning plate (13) is connected with the multi-stage conveying chain (2) and is rotatably arranged on the automatic meal feeding machine (3), a baffle (15) for supporting pulp is arranged between the turning plate (13) and the paging knife (14), the baffle (15) reciprocates between the turning plate (13) and the paging knife (14),
baffle (15) are synchronous with feed dregs of rice conveying chain (12) through the hold-in range that clutch cylinder (17) drove, and baffle (15) are connected with return stroke cylinder (18), are equipped with three group's inductors in proper order along pulp direction of delivery, and three group's inductors control the clutch respectively and combine, turn over board (13) upset and clutch separation, and baffle (15), board (13) and hold-in range carry out following operation according to control:
A. when the turning plate (13) is in contact with the first group of sensors, the clutch is controlled to be combined, the clutch cylinder (17) drives the synchronous belt to be synchronous with the meal feeding conveying chain (12), and the baffle plate (15) is synchronous with the meal feeding conveying chain (12);
B. when the baffle (15) is contacted with the second group of sensors, the turning plate (13) is controlled to turn over;
C. when the baffle (15) is in contact with the third group of sensors, the clutch is controlled to be separated, and when the return cylinder (18) is started to enable the baffle (15) to return to the first group of sensors, the operation of the step A is repeated.
2. An automatic batch feeder according to claim 1, characterised in that: lift chartered plane (5) and include frame (8), promote cylinder (9), press from both sides a packet cylinder (10) and manipulator (11), promote cylinder (9) and press from both sides packet cylinder (10) and set gradually under by, promote cylinder (9) and be fixed in the top of unpacking transport platform (1) through frame (8), promote cylinder (9) connection and press from both sides packet cylinder (10) and control and press from both sides packet cylinder (10) vertical migration, press from both sides packet cylinder (10) control manipulator (11) and act on the pulp.
3. An automatic batch feeder according to claim 1, characterised in that: an inductor is arranged at an outlet of the unpacking and conveying platform (1) and used for judging whether pulp passes through, and the unpacking and conveying platform (1) and a conveying chain (6) connected with the unpacking and conveying platform (1) carry out the following operations according to the judgment:
when pulp exists at the outlet of the unpacking and conveying platform (1) and no pulp exists on a conveying chain (6) connected with the unpacking and conveying platform (1), a motor of the unpacking and conveying platform (1) is started;
when pulp exists at the outlet of the unpacking and conveying platform (1) and pulp exists on the conveying chain (6) connected with the unpacking and conveying platform (1), the motor of the unpacking and conveying platform (1) is stopped.
4. An automatic batch feeder according to claim 1, characterised in that: a conveying plate (16) with a pulley is obliquely arranged at the tail end of the multistage conveying chain (2), and the pulp is conveyed to the turning plate (13) from the multistage conveying chain (2) through the conveying plate (16) in a sliding mode.
5. An automatic batch feeder according to claim 4, characterised in that: the front end of the turning plate (13) is respectively provided with two groups of sensors, whether pulp exists on the conveying plate (16) or not and whether pulp turning is finished or not are respectively judged, and the turning plate (13) and the conveying chain (6) connected with the conveying plate (16) perform the following operations according to judgment:
when the conveying plate (16) is not provided with pulp, the conveying chain (6) is started and conveys the pulp to the turning plate (13);
when pulp exists on the conveying plate (16), the conveying chain (6) stops conveying the pulp to the conveying plate (16);
when the turning plate (13) turns the pulp and is placed on the pulp feeding conveying chain (12), the turning plate (13) stops rotating.
6. An automatic batch feeder according to claim 1, characterised in that: a baffle cylinder (19) is arranged on the baffle (15), when the clutch cylinder (17) is started, the baffle cylinder (19) is started, the baffle (15) is lifted upwards to enable the pulp to be obliquely arranged on the pulp feeding conveying chain (12) and support the pulp; when the clutch cylinder (17) is stopped, the baffle cylinder (19) is stopped, and the baffle (15) descends.
7. An automatic batch feeder according to claim 1, characterised in that: when the baffle (15) contacts the second group of sensors, the turning plate (13) is controlled to turn over the pulp, and the turning plate (13) starts to rotate and gradually supports the pulp on the pulp feeding conveying chain (12).
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