CN110978332B - Method for peeling adhesive label - Google Patents

Method for peeling adhesive label Download PDF

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Publication number
CN110978332B
CN110978332B CN201911327467.6A CN201911327467A CN110978332B CN 110978332 B CN110978332 B CN 110978332B CN 201911327467 A CN201911327467 A CN 201911327467A CN 110978332 B CN110978332 B CN 110978332B
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hot air
label
bottle
container
container bottle
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CN110978332A (en
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张飞鹏
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Fujian Baichuan Resource Regeneration Technology Co ltd
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Fujian Baichuan Resource Regeneration Technology Co ltd
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Publication of CN110978332A publication Critical patent/CN110978332A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02Separating plastics from other materials
    • B29B2017/0213Specific separating techniques
    • B29B2017/0255Specific separating techniques using different melting or softening temperatures of the materials to be separated
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention relates to a method for stripping a viscose type label, which comprises the steps of placing a container bottle to be treated in a stripping device, introducing hot air into the stripping device to soften viscose between a bottle body of the container bottle and the label, and disturbing the container bottle through the hot air to enable the label to be separated from the bottle body and conveyed to a preset position. By adopting the technical scheme of the invention, the defect that a semi-adhesive label and a full-adhesive label are difficult to peel in a traditional mechanical label peeling mode is overcome, the hot air can soften the adhesive between the bottle body and the label of the container bottle and blow the label away from the bottle body by conveying hot air, meanwhile, the bottle body of the container bottle can be subjected to certain thermal shrinkage through the hot air to be stably shaped, and in the subsequent hot water cleaning process, the bottle body is difficult to wrap impurities in the bottle body due to curling, so that the quality of the bottle body and the convenience of subsequent treatment are improved.

Description

Method for peeling adhesive label
Technical Field
The invention relates to a method for stripping an adhesive label.
Background
In the present industry, among the container bottle recycling process, viscose formula label and half viscose formula label are difficult to peel off the mark through the mechanical type and realize label and body separation, have restricted the high-speed development that the container bottle was retrieved, become the problem that the industry waited for a long time to solve, develop method and device that can peel off the label thoroughly high-efficiently more to effectively thoroughly get rid of half viscose formula label and full viscose formula label, to the recycle of container bottle, promote treatment effeciency, energy saving and consumption reduction, promotion ecological civilization meaning are significant.
In order to develop the peeling method and peeling apparatus of the present invention, we conducted investigations on the industry: container bottles on the market, in particular plastic bottles (such as mineral water, beverage bottles, etc.), generally comprise a bottle body and labels arranged on the bottle body, wherein the labels comprise adhesive labels (full adhesive labels and semi-adhesive labels), heat shrinkable film labels, etc. In order to better recycle, in the process of recycling plastic bottles, the labels need to be removed first to ensure the quality and purity of the bottle flakes.
Conventional label peeling devices typically employ mechanical peeling, such as a spiral knife slot or a knife-carrying roller, to cut the label or both the label and the body, and then blow the label away by an air stream. Through search, the application publication No. CN 108906800A, named as a plastic bottle label removing device, discloses a plastic bottle label removing device in Chinese invention patent application, the plastic bottle is placed on a support frame, then the label is pierced through a barbed needle roller, the pierced label is sucked into an air pipe through the suction force of a fan and then enters a label collecting cylinder for collection, the plastic bottle after the label is removed is placed into a cleaning cylinder for cleaning, and glue adhered to the plastic bottle and avoided is removed.
The mode of puncturing the label and then withdrawing the label is actually a mechanical label stripping mode, the label is only suitable for stripping the label of the heat shrinkable film type container bottle, the adhesive parts of the semi-adhesive label paper and the full-adhesive label cannot be completely removed, a part of the label is adhered to the bottle body and is not sucked away by a fan, the label and the bottle body are mixed together when the bottle is cleaned by hot water after being crushed, the separation treatment is difficult to carry out, and the quality is greatly reduced due to the reduction of the purity of the bottle flakes.
In view of the industrial limitation of mechanical label stripping, the inventor of the present application combines the industrial experience to carry out deep research and development on the problems, and the present application is generated by repeated tests.
Disclosure of Invention
The invention aims to provide an adhesive label stripping method with good label processing effect and high processing efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the basic flow of the adhesive label peeling method of the invention is as follows: the container bottle to be treated is placed in the stripping device, hot air is introduced into the stripping device, the bottle body is heated, shrunk and softened by the viscose glue, so that the label paper is separated from the bottle body, and the container bottle is disturbed by the hot air to separate the label from the bottle body.
In order to better peel off, a peeling device with a specific structure is designed to form pulse hot air flow, the container bottle is pushed to be sequentially pushed forwards in a jumping manner by the pulse hot air flow, the contact time of the container bottle and the hot air flow is prolonged, the container bottle and the label are fully preheated, and the viscose is guaranteed to be fully softened.
After the labels are separated through hot air flow, in order to further collect the labels, the labels are collected uniformly through cyclone separation, and meanwhile, the hot air flow separated through cyclone separation is recycled, so that hot air loss is avoided, and energy conservation and consumption reduction are realized.
Compared with the traditional mechanical label stripping, the label stripping device adopts hot air to strip the label, and realizes four purposes: the PET bottle is heated and shrunk, the viscose is softened, the separation of the label and the bottle body is promoted, the bottle body is disturbed and directionally conveyed, and impurities in circulating hot air are removed through hot air circulation so as to purify and achieve the effects of circulation and energy consumption reduction.
The label stripping device adopts a continuous adhesive type label stripping device, continuous feeding and discharging are realized, the treatment efficiency is improved, the stay time of the bottle body in the stripping device is preferably 2-10min, the bottle body can be disturbed and subjected to label separation, the bottle body can be directionally conveyed, the movable gate plate is utilized for partitioning, the pulse airflow can be realized through computer control programming, the movable gate plate has a certain horizontal inclination, and the working requirement of the cyclone separator is met by combining the pulse airflow.
In a preferred form of the invention, the hot gas stream is at a temperature of from 120 ℃ to 180 ℃.
In a preferred form of the invention, the hot gas stream is at a temperature of 150 ℃.
As a preferred mode of the present invention, the peeling device includes a feeding mechanism for conveying the container bottle, a hot air conveying mechanism for conveying the hot air flow, and a hot air circulation purification mechanism, the hot air circulation purification mechanism has a first feeding port, a first discharging port, a first air inlet, and a first air outlet, the discharging end of the feeding mechanism is disposed corresponding to the first feeding port of the hot air circulation purification mechanism, the air outlet end of the hot air conveying mechanism is disposed corresponding to the first air inlet, the first air outlet is disposed corresponding to the label collecting device, a material pushing mechanism is disposed in the hot air circulation purification mechanism, and the material pushing mechanism includes a supporting mechanism for supporting the container bottle and an air blowing mechanism for pushing the container bottle to move on the supporting mechanism toward the first discharging port.
As a preferred mode of the invention, the heated air circulation purification mechanism comprises a box body, the box body is provided with a bottom plate, a top plate and a side plate enclosed between the bottom plate and the top plate, the supporting mechanism is a plurality of carrier rollers arranged in the box body, the plurality of carrier rollers jointly form a supporting surface, an air flow gap is formed between the adjacent carrier rollers, a hot air channel is formed between the supporting surface and the bottom plate of the box body, the heated air conveying mechanism is communicated with the hot air channel, the blowing mechanism comprises a plurality of movable gate plates arranged in the hot air channel, one end of each movable gate plate is a hinged end hinged on the side plate of the box body, the other end of each movable gate plate is a movable end capable of opening and closing the air flow gap, the plurality of movable gate plates divide the hot air channel into a plurality of blowing chambers, the air outlet end of the heated air conveying mechanism is arranged, the plurality of movable shutters are arranged along a conveying direction of the container bottles.
As a preferable mode of the present invention, the driving mechanism is an air cylinder, a cylinder body of the air cylinder is hinged to a side plate of the box body, a piston rod of the air cylinder is hinged to a connecting rod, the connecting rod is connected with a horizontally disposed driving shaft, and the movable gate plate is mounted on the driving shaft.
In a preferred form of the invention, the support surface is angled at 5 to 30 ° relative to horizontal, the support surface tapering in the direction of movement of the container bottle.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a partial internal structure diagram of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 2.
In the figure:
left side plate 11 of box body 10
Right side plate 12 and front side plate 13
Rear side plate 14 bottom plate 15
Top plate 16 material cavity separating plate 17
First feed opening 101 of guide plate 18
First outlet 102 and first inlet 103
First outlet 104 feed channel 105
Discharge channel 106 level sensor 107
Chute 131
Idler 20
Adjusting shaft 31 of material layer adjusting plate 30
Adjusting handle 32
First conduit 41 of cyclone 40
Return air duct 42 label collection device 43
First centrifugal fan 50 discharging trough 51
Air inlet 511 and air outlet 512
Feeding port 513 conveying pipeline 52
Second centrifugal fan 60 hot air duct 61
Heating device 62
Mounting seat 71 air cylinder 72
Connecting rod 73 drives shaft 74
Movable gate 75 blow chamber 76
First fixing plate 81 and second fixing plate 82
First flap 83 second flap 84
First elastic member 85 and second elastic member 86
Adjusting screw 87 first adjusting nut 871
First hanging ring 872 second adjusting nut 873
Second hanging ring 874 mounting block 88
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is made with reference to the embodiments.
Referring to fig. 1 to 4, in the method for peeling the adhesive label, a container bottle to be treated (such as a mineral water bottle or a beverage bottle, which may be made of PET, but is not limited to PET) is placed in a peeling device, hot air is introduced into the peeling device to shrink the container bottle and soften the adhesive, and the container bottle is disturbed by the hot air to separate the label from the bottle body. In the peeling apparatus, the container bottles are pushed to a predetermined position by regularly disturbing the container bottles with a hot air flow. In the peeling apparatus, the peeled labels are conveyed to the cyclone 40 by the hot air circulation cleaning mechanism and deposited to the label collecting apparatus 43. Preferably, the residence time of the container bottle in the peeling device is 2-10 min.
The method of the invention is preferably used for adhesive or semi-adhesive labels.
In a preferred mode of the invention, the temperature of the hot air flow is 120 ℃ to 180 ℃, and in a preferred mode, the temperature of the hot air flow is 150 ℃. Under the stable condition, the viscose in the prior container bottle (especially mineral water bottle or beverage bottle) is softened, and after the viscose is softened, the label is loosened.
In the invention, the stripping device can be a groove body or a box body for placing the container bottle. The applicant develops and provides a label peeling device particularly suitable for implementing the method, and the label peeling device comprises a feeding mechanism for conveying a container bottle, a hot air conveying mechanism for softening glue between a bottle body of the container bottle and a label and a hot air circulation purification mechanism, wherein the hot air circulation purification mechanism is provided with a first feeding hole 101, a first discharging hole 102, a first air inlet 103 and a first air outlet 104, the first feeding hole 101 of the hot air circulation purification mechanism corresponding to the discharging end of the feeding mechanism is arranged, the air outlet end of the hot air conveying mechanism is arranged corresponding to the first air inlet 103, the first air outlet 104 is arranged corresponding to the label collecting device 43, a material pushing mechanism is arranged in the hot air circulation purification mechanism, and the material pushing mechanism comprises a supporting mechanism for supporting the container bottle and an air blowing mechanism for pushing the container bottle to move towards the first discharging hole 102 on the supporting mechanism. The supporting mechanism, the blowing mechanism and the hot air conveying mechanism are jointly used for pushing the container bottles to move, and can also be called as a material pushing mechanism.
As a preferred mode of the present invention, the heated air circulation purification mechanism includes a box body 10, the box body 10 has a bottom plate 15, a top plate 16 and side plates enclosed between the bottom plate 15 and the top plate 16, the bottom plate 15 and the top plate 16 are arranged along a horizontal direction, the supporting mechanism is a plurality of supporting rollers 20 arranged in the box body 10, the supporting rollers 20 extend along the horizontal direction, the plurality of supporting rollers 20 are arranged along a conveying direction of the container bottles, the plurality of supporting rollers 20 together form a supporting surface, in an embodiment, an included angle of the supporting surface relative to the horizontal is 5 to 30 °, and the supporting surface gradually decreases along a moving direction of the container bottles. By adopting the arrangement direction, the container bottle has a tendency of moving towards the first discharge hole 102 under the action of gravity, and the container bottle can be better pushed to move towards the first discharge hole 102 due to the disturbance of the hot air flow of the hot air conveying mechanism.
According to the invention, an air flow gap is formed between adjacent carrier rollers 20, and the air flow gap is smaller than the diameter of the bottle body of the container bottle, so that the container bottle cannot fall from the air flow gap. A hot air channel is formed between the supporting surface and the bottom plate 15 of the box body 10, and the hot air delivery mechanism is communicated with the hot air channel and is used for delivering the hot air into the hot air channel. In the invention, the blowing mechanism comprises a plurality of movable gate plates 75 arranged in the hot air channel, one end of each movable gate plate 75 is a hinged end hinged on a side plate of the box body 10, the other end of each movable gate plate is a movable end capable of opening and closing the air flow gap, the hot air channel is divided into a plurality of blowing cavities 76 by the movable gate plates 75, the air outlet end of the hot air conveying mechanism is arranged corresponding to the blowing cavities 76, the hinged end is connected with a driving mechanism for driving the movable gate plates 75 to swing to open and close the air flow gap, and the movable gate plates 75 are arranged along the conveying direction of the container bottles. For convenience of description, in fig. 3, the movable shutter 75 is provided with a first movable shutter …, a second movable shutter …, and chambers on the left side of the movable shutter 75 are respectively set as a first blowing chamber, a second blowing chamber, and a third blowing chamber … …, from left to right. As a preferred mode of the present invention, the driving mechanism is an air cylinder 72, a cylinder body of the air cylinder 72 is hinged to a side plate of the box 10, the box 10 is provided with an installation seat 71, the air cylinder 72 can be hinged to the installation seat 71, the air cylinder 72 is arranged outside the box 10, a piston rod of the air cylinder 72 is hinged to a connecting rod 73, the connecting rod 73 is connected to a horizontally arranged driving shaft 74 (specifically, the connecting rod 73 is fixedly connected to the driving shaft 74), the movable shutter plate 75 is fixedly installed on the driving shaft 74, the driving shaft 74 extends along a horizontal direction, the air cylinder 72 is arranged along a vertical direction, the connecting rod 73 can be driven to swing through the extension and contraction of the piston rod of the air cylinder 72, so as to drive the driving shaft 74 to rotate a certain angle, the driving shaft 74 can drive the movable shutter plate 75 to swing in the vertical plane while rotating a certain angle, when the, the air flow gap can be closed. In the invention, by arranging a plurality of movable gate plates 75 and controlling the orderly movement of the movable gate plates 75, for example, the first movable gate plate swings downwards and abuts against the bottom plate 15, the first movable gate plate is arranged obliquely relative to the horizontal plane, the hot air flow moves obliquely upwards in the first blowing cavity and blows the container bottles on the corresponding carrier rollers 20 obliquely upwards, the first movable gate plate swings upwards and seals the corresponding air flow gaps, the second movable gate plate swings to the bottom plate 15, the air flow moves obliquely upwards from the second blowing cavity and blows the container bottles on the corresponding carrier rollers 20 obliquely upwards, the second movable gate plate swings upwards and seals the corresponding air flow gaps, the third movable gate plate swings to the bottom plate 15, the hot air flow moves obliquely upwards from the third blowing cavity and blows the container bottles on the corresponding carrier rollers 20 obliquely upwards, through the control mode, the container bottle can be driven to be pushed to the first discharge hole 102 in a parabolic manner for multiple times, so that hot air can be fully contacted with the container bottle, the viscose on the label can be fully softened, and when the container bottle moves upwards, the label can be blown away by the hot air and blown to the first air outlet 104. Preferably, the present invention may be provided with a controller, controlled by well-known computer programming, to effect the orderly movement of each movable shutter 75, creating a pulsed air flow, so that the hot air flow is orderly conveyed in the blowing chamber, with the container bottles being regularly conveyed onwards on the carrier roller 20.
As a preferred mode of the present invention, the side plates include a front side plate 13, a rear side plate 14, a left side plate 11, and a right side plate 12, a material cavity separating plate 17 is further disposed in the box body 10, the material cavity separating plate 17 is disposed along a vertical direction, the material cavity separating plate 17, the front side plate 13, the left side plate 11, and the right side plate 12 together enclose a feeding channel 105, the feeding channel 105 is located above the carrier roller 20, an outlet end of the feeding mechanism is connected to the feeding channel 105, and the first air outlet 104 is disposed on the top plate 16. Preferably, the front side plate 13 forms a material sliding portion 131 in the feeding channel 105, the included angle of the material sliding portion 131 with respect to the vertical direction is 10-35 degrees, the material sliding portion 131 can enable the container bottles to slide onto the supporting roller 20 more smoothly, and the container bottles in the feeding channel 105 are not easy to move upwards under the action of hot air flow. The setting of material partition board 17 can avoid the container bottle to get into directly being blown to the rear end of box 10 in the box 10, form feedstock channel 105 in the box 10, feedstock channel 105 is used for saving a quantitative container bottle, can seal this feedstock channel 105 to a certain extent on the one hand, reduce the hot gas flow and escape from this feedstock channel 105, the container bottle can preheat in this feedstock channel 105 simultaneously, can rise to the predetermined value fast after making the container bottle get into bearing roller 20, guarantee that the viscose on the container bottle is fully dissolved. Preferably, a level sensor 107 may also be provided in the feed channel 105, the feeding mechanism stopping feeding when a certain amount of bottles in the feed channel 105 is reached.
As a preferred mode of the present invention, a guide plate 18 is further disposed in the box body 10, the guide plate 18, the rear side plate 14, the left side plate 11 and the right side plate 12 together enclose a discharge channel 106, one end of a support surface corresponding to the feed channel 105 is a first end, one end corresponding to the discharge channel 106 is a second end, the material layer adjusting plate further includes a material layer adjusting plate 30 disposed corresponding to the second end, one end of the material layer adjusting plate 30 is hinged to the left side plate 11 and the right side plate 12 through an adjusting shaft 31, the other end of the material layer adjusting plate 30 is an adjusting end, the adjusting end is located above the guide plate 18, the adjusting shaft 31 is connected with an adjusting handle 32, and the adjusting handle 32 is disposed outside the box body 10. Through rotating adjustment handle 32, can be so that bed of material regulating plate 30 fixes a position in a certain position of vertical face, through this kind of mode, can control the height of container bottle bed of material on bearing roller 20 for the conveying speed and the dwell time of auxiliary control container bottle guarantee that container bottle can fully contact with the hot gas flow.
In a preferred embodiment of the present invention, the feeding mechanism includes a first centrifugal fan 50, a discharging trough 51 and a conveying pipeline 52, the discharging trough 51 has an air inlet 511, an air outlet 512 and a feeding port 513, the air outlet of the first centrifugal fan 50 is connected to the air inlet of the discharging trough 51, and the air outlet 512 of the discharging trough 51 is connected to the first feeding port 101. The vials are fed from the feed opening 513 into a discharge chute 51, into which chute 51 a corresponding closure can be placed if necessary, and are moved in a conveying duct 52 by means of a first centrifugal fan 50 and fed into the feed channel.
As a preferred mode of the present invention, the hot air conveying mechanism includes a second centrifugal fan 60, a hot air duct 61 and a heating device 62, an air outlet of the second centrifugal fan 60 is connected to an inlet end of the hot air duct 61, an outlet end of the hot air duct 61 is connected to the first air inlet 103, the heating device 62 has a heating rod extending into the hot air duct 61, the heating rod can heat the air flow in the hot air duct 61, the first air outlet 104 is connected to the cyclone separator 40 through a first duct 41, an air outlet end of the cyclone separator 40 is communicated with the hot air duct 61 through a return air duct 42, and a discharge port of the cyclone separator 40 is provided with a label receiving device 43 for receiving a label. By adopting the structure, the hot air flow in the box body 10 can be conveyed to the hot air pipeline 61 for recycling, thereby saving energy consumption. The hot air pipeline 61, the cyclone separator 40, the second centrifugal fan 60, the hot air pipeline 61, the first pipeline 41, the return air pipeline 42 and the hot air circulation purification mechanism form a hot air circulation purification system, so that impurities in the circulating hot air can be removed, and the effects of circulation and energy consumption reduction can be achieved through purification.
In a preferred embodiment of the present invention, the first discharge port 102 is provided with a blanking mechanism, the blanking mechanism includes a hopper body with an open upper end, the hopper body includes a first fixed plate 81, a second fixed plate 82, a first movable plate 83 and a second movable plate 84, the first fixed plate 81 and the second fixed plate 82 together form a fixed part of the hopper body, and the fixed part is fixed on the box body 10 and is communicated with the box body 10. The first fixing plate 81 and the second fixing plate 82 are oppositely arranged and form a first feed opening and a second feed opening which are positioned at two sides of the fixing member, the first movable plate 83 is arranged on the first feed opening in an openable mode, the second movable plate 84 is arranged on the second feed opening in an openable mode, the upper end of the first movable plate 83 is hinged on the first feed opening, the lower end of the first movable plate 83 is a first swing end, the upper end of the second movable plate 84 is hinged on the second feed opening, the lower end of the second movable plate 84 is a second swing end, the fixing member further comprises a first elastic member 85 and a second elastic member 86, one end of the first elastic member 85 is connected with the fixing member, the other end of the first elastic member is connected with the first swing end, one end of the second elastic member 86 is connected with the fixing member, and the other end of the second elastic member is connected with the second swing end. By adopting the technical scheme of the invention, when the weight of the container bottle in the hopper body reaches a certain value, the first elastic member 85 and the second elastic member 86 are stretched, the first movable plate 83 and the second movable plate 84 are automatically opened, the container bottle automatically drops, and when the weight of the container bottle does not reach a corresponding value, the container bottle can be temporarily stored in the hopper body, so that the hopper body is closed to a certain extent, the escape of hot air in the box body 10 is reduced, and the effect of saving energy is achieved.
In a preferred embodiment of the present invention, the first elastic member 85 and the second elastic member 86 are both springs.
As a preferable mode of the present invention, the present invention further includes a mounting block 88 disposed on the fixing member, the mounting block 88 is provided with an adjusting screw 87, in an embodiment, the adjusting screw 87 is disposed along a horizontal direction, the adjusting screw 87 is provided with a first adjusting nut 871 and a second adjusting nut 873, the first adjusting nut 871 is welded with a first hanging ring 872, the second adjusting nut 873 is welded with a second hanging ring 874, the upper end of the first elastic member 85 is hung on the first hanging ring 872, and the upper end of the second elastic member 86 is hung on the second hanging ring 874. According to the invention, the stretching degree of the spring is adjusted by adjusting the positions of the first adjusting nut 871 and the second adjusting nut 873 on the adjusting screw 87, so that the tension of the spring on the first movable plate 83 and the second movable plate 84 can be controlled, and the storage capacity of the container bottles in the hopper body can be controlled.
As a preferred mode of the present invention, the first fixed plate 81 and the second fixed plate 82 are both disposed along a vertical direction, the first fixed plate 81 and the second fixed plate 82 are triangular, the first movable plate 83 and the second movable plate 84 are rectangular, the first movable plate 83 and the second movable plate 84 are disposed opposite to each other in a V-shape, and a lower end of the first movable plate 83 abuts against a lower end of the second movable plate 84.
The product form of the present invention is not limited to the embodiments, and any suitable changes or modifications of the similar ideas by anyone should be considered as not departing from the patent scope of the present invention.

Claims (8)

1. The method for peeling the adhesive label is characterized in that: the method comprises the steps of placing a container bottle to be treated in a stripping device, introducing hot air into the stripping device, heating and shrinking a bottle body of the container bottle and softening adhesive, disturbing the container bottle through the hot air to enable a label to be separated from the bottle body, wherein the stripping device comprises a feeding mechanism for conveying the container bottle, a hot air conveying mechanism for conveying the hot air and a hot air circulating and purifying mechanism, the hot air circulating and purifying mechanism is provided with a first feeding hole, a first discharging hole, a first air inlet and a first air outlet, the discharging end of the feeding mechanism is arranged corresponding to the first feeding hole of the hot air circulating and purifying mechanism, the air outlet end of the hot air conveying mechanism is arranged corresponding to the first air inlet, the first air outlet is arranged corresponding to a label collecting device, a material pushing mechanism is arranged in the hot air circulating and purifying mechanism, and the material pushing mechanism comprises a bearing mechanism for bearing the container bottle and a blowing mechanism for pushing the, the hot air circulation purification mechanism comprises a box body, the box body is provided with a bottom plate, a top plate and a side plate enclosed between the bottom plate and the top plate, the supporting mechanism is a plurality of carrier rollers arranged in the box body, the carrier rollers together form a supporting surface, an airflow gap is formed between adjacent carrier rollers, a hot air channel is formed between the supporting surface and a bottom plate of the box body, the hot air conveying mechanism is communicated with the hot air channel, the blowing mechanism comprises a plurality of movable flashboards arranged in the hot air channel, one end of each movable flashboard is a hinged end hinged on a side plate of the box body, the other end of each movable flashboard is a movable end capable of being used for opening and closing the airflow gap, the hot air channel is divided into a plurality of blowing chambers by the movable flashboards, the air outlet end of the hot air conveying mechanism is arranged corresponding to the air blowing cavity, the hinged end is connected with a driving mechanism used for driving the movable flashboards to swing, and the movable flashboards are arranged along the conveying direction of the container bottles.
2. The method of peeling adhesive labels as claimed in claim 1, wherein: in the peeling apparatus, the container bottles are pushed to a predetermined position by regularly disturbing the container bottles with a hot air flow.
3. The method of peeling adhesive labels as claimed in claim 2, wherein: in the peeling device, the peeled labels are conveyed to a cyclone separator through a hot air circulation purification mechanism and are deposited to a label collection device.
4. The method of peeling adhesive labels as claimed in claim 1, wherein: the temperature of the hot gas stream is between 120 ℃ and 180 ℃.
5. The method of peeling adhesive labels as claimed in claim 4, wherein: the temperature of the hot gas stream is 150 ℃.
6. The method of peeling adhesive labels as claimed in claim 4, wherein: the residence time of the container bottle in the stripping device is 2-10 min.
7. The method of peeling adhesive labels as claimed in claim 1, wherein: the driving mechanism is an air cylinder, a cylinder body of the air cylinder is hinged to a side plate of the box body, a piston rod of the air cylinder is hinged to a connecting rod, a horizontal driving shaft is connected to the connecting rod, and the movable flashboard is installed on the driving shaft.
8. The method of peeling adhesive labels as claimed in claim 2, wherein: the included angle of the supporting surface relative to the horizontal is 5-30 degrees, and the supporting surface is gradually reduced along the moving direction of the container bottle.
CN201911327467.6A 2019-12-20 2019-12-20 Method for peeling adhesive label Active CN110978332B (en)

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Application Number Priority Date Filing Date Title
CN201911327467.6A CN110978332B (en) 2019-12-20 2019-12-20 Method for peeling adhesive label

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CN110978332A CN110978332A (en) 2020-04-10
CN110978332B true CN110978332B (en) 2021-01-15

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