A multi-blade debadger

Abstract

The application discloses a multi-scraping-blade label removing machine, which comprises a cylindrical machine shell, a label removing mechanism, a stirring mechanism and a wind power label collecting mechanism, one end of the cylindrical machine shell is provided with a feeding port, the other end is provided with a discharging port, and the inner wall of the cylindrical machine shell is provided with a plurality of fixed scrapers; the label removing mechanism is arranged on the inner side of the cylindrical machine shell and comprises a rotating shaft, movable scrapers and a telescopic rotary driving element; and a plurality of movable scrapers are arranged on the outer side of the rotating shaft in a spiral arrangement. The movable scrapers arranged on the rotating shaft in a spiral arrangement are matched with the fixed scrapers arranged on the inner wall of the cylindrical machine shell, and under the driving of the telescopic rotary driving element, the movable scrapers perform spiral pushing action and telescopic action, so that the angle and direction of friction, cutting and scraping are increased, the friction, cutting and scraping in more dimensional angles are formed, the bottle bodies are scattered at the tail end of conveying through the stirring mechanism, the label suction is matched with the wind power label collecting mechanism, and the labels that are cut and scraped are prevented from being pressed at the bottom.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PET recycling, in particular to a multi-blade label removing machine. BACKGROUND

[0002] In the recycling of plastic bottles, labels are usually attached to the outside of the bottle, and the labels are usually made of plastic film. Therefore, the labels need to be removed before the bottles are cleaned and crushed to produce recycled plastic raw materials. In order to remove the labels on the bottles, the existing label removing machine generally uses fixed blades arranged on the inner wall of a sleeve, a rotating shaft is arranged in the sleeve, a movable blade is arranged on the rotating shaft, and the fixed blade and the movable blade cooperate to cut and remove the labels by rotating the screw feeder. For example, Chinese patent 201110042892.8 discloses a label removing machine, which includes a belt pulley, a support column, an inlet, a distribution box, a paper outlet, an opening cover, a fixed blade arranged on the inner wall of the machine body, a rotating shaft arranged in the machine body, a parallel blade and an inclined blade arranged on the outer wall of the rotating shaft, and the parallel blade and the inclined blade are arranged in sequence. The fixed blade is arranged on the inner wall of the machine body. The direction of the parallel blade on the outer wall of the rotating shaft is the same as the long axis direction of the rotating shaft. The fixed blade arranged on the inner wall of the machine body is arranged at an angle opposite to the direction of the inclined blade arranged on the outer wall of the rotating shaft.

[0003] For the above-mentioned prior art, most of the bottles are deposited in the lower half of the machine body during the spiral conveying, which causes the bottles to overlap and affects the collision and friction between the bottles and the blades. The labels that are cut and removed are easily pressed at the bottom and finally mixed with the bottles and discharged together, resulting in incomplete removal of the labels. Therefore, how to improve the removal rate of the labels is a technical problem to be solved. SUMMARY

[0004] The present application aims to overcome the above technical deficiencies and provide a multi-blade label removing machine to solve the technical problem of how to improve the removal rate of the labels in the prior art.

[0005] To achieve the above technical purposes, the present application adopts the following technical solutions:

[0006] The present application provides a multi-blade label removing machine, which comprises:

[0007] A cylindrical machine shell, one end of which is provided with an inlet, and the other end is provided with an outlet, and a plurality of fixed blades are arranged on the inner wall of the cylindrical machine shell;

[0008] A label removing mechanism is arranged on the inner side of the cylindrical machine shell and comprises a rotating shaft, movable blades and a telescopic rotary drive. A plurality of movable blades are arranged in a spiral on the outer side of the rotating shaft. The output end of the telescopic rotary drive is connected with the rotating shaft to drive the rotating shaft to rotate and make reciprocating telescopic motion in the axial direction.

[0009] A stirring mechanism is arranged at one end of the rotating shaft close to the discharge port for scattering the discharged bottles.

[0010] A wind label collecting mechanism is arranged on the cylindrical casing for sucking off the detached labels at the middle and tail sections of the cylindrical casing.

[0011] In some embodiments, the label removing mechanism further comprises a plurality of turning plates, a plurality of the moving scrapers are arranged in a spiral equidistant interval to form a plurality of gaps along the axial direction of the rotating shaft, and a plurality of the turning plates are arranged on the outside of the rotating shaft in parallel to the axial direction of the rotating shaft and located inside the gaps.

[0012] In some embodiments, the fixed scrapers comprise pointed scrapers, three-edged scrapers and four-edged scrapers, and a plurality of the pointed scrapers, three-edged scrapers and four-edged scrapers are evenly distributed and arranged on the inner wall of the cylindrical casing.

[0013] In some embodiments, the moving scrapers comprise a tool seat and a scraper head, the tool seat is in a spiral arc shape, and a plurality of the scraper heads are evenly distributed and arranged on the outside of the tool seat.

[0014] In some embodiments, the stirring mechanism comprises a shaft rod and a plurality of stirring rods, the shaft rod is connected with the rotating shaft, and a plurality of the stirring rods are circumferentially distributed and arranged on the outside of the shaft rod.

[0015] In some embodiments, the wind label collecting mechanism comprises a plurality of air blowers, the number of the air blowers is at least two, when the number of the air blowers is two, one of the air blowers is located at the middle section of the cylindrical casing, and the other air blower is located directly above the stirring mechanism.

[0016] In some embodiments, the wind label collecting mechanism further comprises a mesh cover, the mesh cover is arranged at the bottom of the cylindrical casing and located directly below the stirring mechanism for upward air intake.

[0017] In some embodiments, the wind label collecting mechanism further comprises a mesh bag, the mesh bag is sleeved on the air outlet of the air blower.

[0018] In some embodiments, the telescopic rotary driving member comprises a rotary driving assembly and a hydraulic push rod, the hydraulic push rod is mounted on the outside of the cylindrical casing through a frame body, the output end of the rotary driving assembly is connected with the rotating shaft for driving the rotating shaft to rotate, and the telescopic end of the hydraulic push rod is connected with the rotary driving assembly.

[0019] In some embodiments, the tail end of the pointed doctor blade, the three-edged blade doctor blade and the four-edged blade doctor blade is provided with a positioning seat, a mounting hole corresponding to the fixed doctor blade is formed on the cylindrical shell, the positioning seat is inserted into the corresponding mounting hole, a locking bolt is threadedly connected to the positioning seat, and the locking bolt abuts against the outer surface of the cylindrical shell.

[0020] Compared with the prior art, the multi-doctor-blade label removing machine provided by the application is characterized in that the movable doctor blades arranged on the rotating shaft and arranged in a spiral manner cooperate with the fixed doctor blades arranged on the inner wall of the cylindrical shell, and under the driving of the telescopic rotary driving element, the movable doctor blades perform a spiral pushing action and a telescopic action, so that the angle and direction of friction, cutting and scraping are increased, the friction, cutting and scraping in more dimensions are formed, the label on the bottle body is fully cut, the bottle body is scattered at the tail end of the conveying through the stirring mechanism, the label is sucked through the wind collecting mechanism, the label that is cut and scraped is prevented from being squeezed at the bottom, and finally mixed in the bottle body and discharged together, so that the label removal rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional structure diagram of the multi-doctor-blade label removing machine provided by the embodiment of the application;

[0022] Figure 2 is a three-dimensional structure diagram of the label removing mechanism of the multi-doctor-blade label removing machine provided by the embodiment of the application;

[0023] Figure 3 is a three-dimensional structure diagram of the fixed doctor blade of the multi-doctor-blade label removing machine provided by the embodiment of the application;

[0024] Figure 4 is a three-dimensional diagram of a partial section of the multi-doctor-blade label removing machine provided by the embodiment of the application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, cylindrical shell; 101, feeding port; 102, discharging port;

[0027] 2, fixed doctor blade; 21, pointed doctor blade; 22, three-edged blade doctor blade; 23, four-edged blade doctor blade; 201, positioning seat; 202, locking bolt;

[0028] 3, label removing mechanism; 31, rotating shaft; 32, movable doctor blade; 33, telescopic rotary driving element; 34, turning plate; 321, cutter seat; 322, doctor blade head; 331, hydraulic push rod; 332, rotary driving assembly; 3321, frame body; 3322, driving motor; 3323, driving pulley; 3324, driven pulley; 3325, transmission belt; 301, gap;

[0029] 4, stirring mechanism; 41, shaft rod; 42, stirring rod;

[0030] 5. Wind power collection mechanism; 51. Fan; 52. Net cover; 53. Net bag. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0032] In order to solve the technical problem of how to improve the removal rate of labels, the present application provides a multi-scraper label removing machine, which can realize the effect of improving the removal rate of labels.

[0033] It should be noted that the multi-scraper label removing machine described in the present application is used for but not limited to PET plastic bottle recycling, etc. For the convenience of description, in the present application, only the application of the multi-scraper label removing machine in PET plastic bottle recycling is taken as an example for description, and the principle of the application of the multi-scraper label removing machine in plastic bottle label removing processing in other scenes is substantially the same as that in PET plastic bottle recycling, which will not be described here.

[0034] Please refer to Figure 1 and Figure 2 , Figure 1 is a three-dimensional structure diagram of the multi-scraper label removing machine in an embodiment of the present application, Figure 2It is the three-dimensional drawing of the structure of the label removing mechanism of the multi-scraper label removing machine. The multi-scraper label removing machine comprises a cylindrical machine shell 1, a label removing mechanism 3, a stirring mechanism 4 and a wind power label collecting mechanism 5. One end of the cylindrical machine shell 1 is provided with a feeding port 101, and the other end is provided with a discharging port 102. The feeding port 101 is installed on the top of the cylindrical machine shell 1, and the discharging port 102 is installed on the bottom of the cylindrical machine shell 1. A plurality of fixed scrapers 2 are arranged on the inner wall of the cylindrical machine shell 1. The label removing mechanism 3 is arranged on the inner side of the cylindrical machine shell 1 and comprises a rotating shaft 31, a movable scraper 32 and a telescopic rotary driving part 33. A plurality of movable scrapers 32 are arranged in a spiral on the outer side of the rotating shaft 31. In rotation, the plastic bottles entering the cylindrical machine shell 1 can be spirally pushed from the feeding port 101 to the discharging port 102. In the pushing process, the movable scraper 32 and the fixed scraper 2 produce friction, cutting and scraping, achieving the effect of label removal of the plastic bottles. The output end of the telescopic rotary driving part 33 is connected with the rotating shaft 31 for driving the rotating shaft 31 to rotate and reciprocatingly stretch and contract in the axial direction. Based on the spiral pushing action of the basic movable scraper 32, the movable scraper 32 also produces left and right horizontal pushing action on the plastic bottles, so that the bottles are pushed and squeezed in the friction, cutting and scraping direction along the spiral pushing direction under the action of left and right horizontal pushing, increasing the angle and direction of friction, cutting and scraping, forming more multi-dimensional angle friction, cutting and scraping, and superimposed action, further cutting and scraping the label, which is more easily acted on the bottle body, making the label cutting probability higher, the cutting number more, and the label more fragmented and easier to be sucked away. The stirring mechanism 4 is arranged at one end of the rotating shaft 31 close to the discharging port 102 for dispersing the discharged bottles. After the cooperation of the movable scraper 32 and the fixed scraper 2 for label removal, in order to avoid label accumulation, the stirring mechanism 4 is used to disperse the bottles at the tail end of the conveying to provide a channel for the label to be sucked upward, improving the removal rate. The wind power label collecting mechanism 5 is arranged on the cylindrical machine shell 1 for sucking out the removed labels at the middle and tail sections of the cylindrical machine shell 1. The removed labels are sucked out from the cylindrical machine shell 1 by wind power suction, achieving the cleaning effect.

[0035] In this embodiment, the reciprocating movement of the rotating shaft 31 along the axial direction of the cylindrical casing 1 increases the left and right horizontal pushing action of the bottle body in the gap between the rotating shaft 31 and the inner wall of the cylindrical casing 1, which increases the angle and direction of friction, scratching and scraping between the bottle body and the moving scraper 32 and the fixed scraper 2, forming more multi-dimensional angle friction, scratching and scraping, and superimposed effect, improving the quality and efficiency of label scraping, and making the scraped label more fragmented. Combined with the air label collecting mechanism 5, the label can be quickly sucked out of the bottle body pile, and under the stirring of the stirring mechanism 4, the bottle body pile is scattered, the label that may be pressed in the lower layer is exposed, and the label is sucked away by the air label collecting mechanism 5, which improves the removal rate of the label.

[0036] It can be understood that the fixed scraper 2 is distributed in the gap of the spiral flow channel formed by the moving scraper 32, and is also arranged along the spiral line direction. In addition, there is a certain gap between the end of the moving scraper 32 and the end of the fixed scraper 2, so as to avoid the blade from being damaged during the horizontal pushing action.

[0037] In one embodiment, please refer to Figure 2 In order to turn up the bottle body in the label removing mechanism 3 area and promote the removal of the label, the label removing mechanism 3 further comprises a turning plate 34, a plurality of moving scrapers 32 are spirally and equidistantly arranged to form a plurality of gaps 301 along the axial direction of the rotating shaft 31, and a plurality of turning plates 34 are arranged on the outside of the rotating shaft 31 and located on the inside of the gap 301 in parallel with the axial direction of the rotating shaft 31. Through the rotation of the rotating shaft 31, the turning plate 34 turns up the bottle body.

[0038] In this embodiment, the moving scraper 32 is equidistantly arranged along the axial direction of the rotating shaft 31 and is divided into two groups along the radial direction, and two axial gaps 301 are formed between the two groups. The turning plate 34 is installed in the gap 301 and is equidistantly arranged to turn up the bottle body.

[0039] It can be understood that the moving scraper 32 is equidistantly arranged along the axial direction of the rotating shaft 31 and can be divided into multiple groups along the radial direction, which can generate more circumferential gaps 301.

[0040] In one embodiment, please refer to Figure 3 In order to form more angle friction, scratching and scraping, the fixed scraper 2 comprises a pointed scraper 21, a three-edged scraper 22 and a four-edged scraper 23. A plurality of pointed scrapers 21, three-edged scrapers 22 and four-edged scrapers 23 are uniformly arranged on the inner wall of the cylindrical casing 1. Through the arrangement of scrapers with different edges, different angles and directions of scratching are generated in the movement of the bottle body, so that the success rate of scratching and scraping is higher.

[0041] In this embodiment, the tip of the pointed scraper 21 is sharp, mainly playing a role of cutting; the tip and the three edges of the three-edged scraper 22 are sharp, playing a role of multi-directional cutting; and the four edges of the four-edged scraper 23 are sharp, and the top surface thereof is relatively frosted, playing a role of multi-directional cutting and rubbing and extruding to scrape off the label.

[0042] In one of the embodiments, referring to Figure 2 , in order to achieve the functions of the spiral feeding of the moving scraper 32 and scraping off the label, the moving scraper 32 comprises a cutter seat 321 and a scraper head 322, the cutter seat 321 is in a spiral arc shape, forming a spiral pushing structure, and a plurality of scraper heads 322 are uniformly distributed on the outer side of the cutter seat 321, and the scraper head 322 rubs, cuts and scrapes off the label in the spiral pushing material.

[0043] It can be understood that the scraper head 322 can be a square column or a serrated blade head, which can achieve the effect of rubbing, cutting and scraping off the label of the bottle body.

[0044] In one of the embodiments, referring to Figure 2 and Figure 4 , in order to remove the label squeezed at the bottom of the bottle stack, the stirring mechanism 4 comprises a shaft 41 and a stirring rod 42, the shaft 41 is connected with the rotating shaft 31, and a plurality of stirring rods 42 are circumferentially distributed on the outer side of the shaft 41 to scatter the bottle stack and stir up the label pressed at the bottom.

[0045] It can be understood that the bottle sent out from the end of the rotating shaft 31 enters the stirring mechanism 4 and is stirred up by the stirring rod 42, so that it is scattered, and part of the label is stirred up and sucked away by the wind force label collecting mechanism 5.

[0046] It should be noted that the stirring rod 42 can be a cylindrical rod, a plate or an arc surface, which can achieve the effect of stirring up the bottle; the number and distribution of the stirring rod 42 do not hinder the bottle from moving to the discharge port 102.

[0047] Further, in order to achieve the basic label suction and collection effect, the wind force label collecting mechanism 5 comprises a fan 51, the fan 51 is arranged on the cylindrical casing 1, and the number of the fan 51 is at least two, when the number of the fan 51 is two, one fan 51 is located at the middle of the cylindrical casing 1, one fan 51 is located directly above the stirring mechanism 4, one fan 51 discharges the scraped label when the label is removed by the label removing mechanism 3, and one fan 51 sucks and discharges the label after the label is removed by the label removing mechanism 3 and cooperates with the stirring mechanism 4 to check the label.

[0048] Further, in order to provide the best effect of label leak detection and removal, the wind label collecting mechanism 5 further comprises a mesh cover 52, which is arranged at the bottom of the cylindrical casing 1 and directly below the stirring mechanism 4, for upward air intake, blowing the labels upward from bottom to top, so that the labels enter the fan 51 from bottom to top and are discharged to the outside.

[0049] Further, referring to Figure 4 , in order to collect the discharged labels, the wind label collecting mechanism 5 further comprises a mesh bag 53, which is sleeved on the air outlet of the fan 51, so that the labels are collected in the mesh bag 53.

[0050] In one embodiment, referring to Figure 1 and Figure 2 , the telescopic rotary driving member 33 comprises a rotary driving assembly 332 and a hydraulic push rod 331, the hydraulic push rod 331 is mounted outside the cylindrical casing 1 through a frame body, the output end of the rotary driving assembly 332 is connected with the rotating shaft 31 for driving the rotating shaft 31 to rotate, and the telescopic end of the hydraulic push rod 331 is connected with the rotary driving assembly 332, so that the rotary driving assembly 332, the rotating shaft 31 and the moving scraper 32 are driven to move laterally and reciprocally left and right under the telescopic action of the hydraulic push rod 331.

[0051] Specifically, the rotary driving assembly 332 can comprise a frame body 3321, a driving motor 3322, a driving pulley 3323, a driven pulley 3324 and a transmission belt 3325, the driven pulley 3324 is rotationally connected to the frame body 3321, the driving motor 3322 is mounted on the frame body 3321, the driving pulley 3323 is arranged on the output shaft of the driving motor 3322, and the transmission belt 3325 is transmissionally connected between the outer sides of the driving pulley 3323 and the driven pulley 3324, wherein the driven pulley 3324 is connected with the rotating shaft 31, the driving motor 3322 drives the driving pulley 3323 to rotate, and the driven pulley 3324 and the rotating shaft 31 are driven to rotate under the transmission of the transmission belt 3325.

[0052] It can be understood that the frame body 3321 is pushed as a whole by the telescopic action of the hydraulic push rod 331, so that the transmission member thereon drives the rotating shaft 31 to move laterally.

[0053] In one embodiment, referring to Figure 3In order to facilitate the assembly and disassembly of the fixed scraper 2, the tail end of the pointed scraper 21, the three-edged blade scraper 22 and the four-edged blade scraper 23 are provided with a positioning seat 201, and the cylindrical shell 1 is provided with a mounting hole corresponding to the fixed scraper 2, the positioning seat 201 is inserted into the corresponding mounting hole, and the locking bolt 202 is threadedly connected to the positioning seat 201 and abuts against the outer surface of the cylindrical shell 1. By disassembling the locking bolt 202, the fixed scraper 2 can be disassembled from the cylindrical shell 1 for assembly and disassembly.

[0054] In order to better understand the present application, the following will be combined Figures 1 to 4 The technical solutions of the present application are described in detail: the plastic bottle body is fed into the cylindrical shell 1 from the feeding port 101, the telescopic rotary driving member 33 drives the rotating shaft 31 to rotate and reciprocatingly stretch and retract in the transverse direction, drives the movable scraper 32 to spiral feed the bottle body, and in the movement, the bottle body is rubbed, cut and scraped by the mutual extrusion and collision of the movable scraper 32 and the fixed scraper 2, and the accumulated bottle body is turned up by the turning plate 34 at intervals; in the label removing process, the removed label is sucked out by the fan 51 and collected in the mesh bag 53; after the label is removed, the discharged bottle body is scattered by the stirring rod 42 of the stirring mechanism 4, the missed label accumulated below the bottle body is checked and removed, the mesh cover 52 below the stirring mechanism 4 is connected with the outside of the cylindrical shell 1 to take in air, and the label is sucked into the upper fan 51 from the bottom to the top and discharged and collected in the mesh bag 53; finally, the bottle body after the label is removed is discharged from the discharge port 102.

[0055] The specific embodiments of the present application described above do not constitute a limitation on the scope of protection of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A multi-blade label remover, characterized in that, include: A cylindrical casing has a feed inlet at one end and a discharge outlet at the other end. Several fixed scrapers are provided on the inner wall of the cylindrical casing. The label removal mechanism is located inside the cylindrical housing and includes a rotating shaft, a movable scraper, and a telescopic rotary drive. Several movable scrapers are arranged in a spiral arrangement on the outside of the rotating shaft. The output end of the telescopic rotary drive is connected to the rotating shaft to drive the rotating shaft to rotate and perform reciprocating telescopic movements along the axial direction. A stirring mechanism is provided at one end of the rotating shaft near the discharge port, and is used to break up the discharged bottle body; as well as A wind-powered tag collection mechanism, which is installed on the cylindrical housing, is used to suck up the detached tags in the middle and tail sections of the cylindrical housing; The label removal mechanism also includes a flap, and a plurality of the movable scraper spirals are arranged at equal intervals to form a plurality of gaps that run through the axis of the rotating shaft. The plurality of flaps are arranged parallel to the axis of the rotating shaft on the outside of the rotating shaft and located on the inside of the gaps. The fixed scraper includes a pointed scraper, a triangular-edged scraper, and a quadrangular-edged scraper, and several of the pointed scrapers, triangular-edged scrapers, and quadrangular-edged scrapers are evenly distributed on the inner wall of the cylindrical housing. The movable scraper includes a tool holder and scraper heads. The tool holder is in the shape of a spiral arc, and a plurality of scraper heads are evenly distributed on the outer side of the tool holder. The stirring mechanism includes a shaft and stirring rods. The shaft is connected to the rotating shaft, and a plurality of stirring rods are arranged in a circumferential distribution on the outside of the shaft. The telescopic rotary drive includes a rotary drive assembly and a hydraulic push rod. The hydraulic push rod is mounted on the outside of the cylindrical housing via a frame. The output end of the rotary drive assembly is connected to the rotating shaft to drive the rotating shaft to rotate. The telescopic end of the hydraulic push rod is connected to the rotary drive assembly.

2. The multi-blade label remover according to claim 1, characterized in that, The wind-powered collection mechanism includes a fan, which is mounted on the cylindrical casing. There are at least two fans. When there are two fans, one fan is located in the middle section of the cylindrical casing, and the other fan is located directly above the stirring mechanism.

3. The multi-blade label remover according to claim 2, characterized in that, The wind-powered air intake mechanism also includes a mesh cover, which is located at the bottom of the cylindrical housing and directly below the tumbling mechanism, for upward air intake.

4. The multi-blade label remover according to claim 3, characterized in that, The wind-powered collection mechanism also includes a net bag, which is fitted over the air outlet of the wind turbine.

5. The multi-blade label remover according to claim 4, characterized in that, The pointed scraper, the triangular-edged scraper, and the quadrangular-edged scraper are all provided with positioning seats at their tail ends. The cylindrical housing has mounting holes that correspond one-to-one with the fixed scrapers. The positioning seats are inserted into the corresponding mounting holes. The positioning seats are threaded with locking bolts, and the locking bolts abut against the outer surface of the cylindrical housing.

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