CN214524969U - Labeling machine for waist labeling of base material - Google Patents

Abstract

The utility model discloses a labeling machine for labeling the waist of a substrate, which comprises a conveyor belt mechanism arranged on a workbench, wherein two sides of a conveyor belt of the conveyor belt mechanism are respectively and symmetrically provided with a labeling unit, and a sensor for triggering the labeling units is arranged on the workbench between the two labeling units; each labeling unit comprises a winding mechanism, a label peeling mechanism and a waist labeling mechanism which are sequentially arranged along the running direction of the conveyor belt, and an unwinding mechanism is arranged on one side of the winding mechanism, which is far away from the conveyor belt; the waist labeling device controls the guide seat to push and pull the upper and lower labeling heads through the label plate air cylinder, and opening and closing actions of the upper and lower labeling heads are realized. The utility model discloses the labeller of realization compact structure, area is little, need not air jet system and double-deck conveyer belt and can once only paste the mark to the upper and lower two sides of waist of substrate, has improved mark efficiency greatly.

Description

Labeling machine for waist labeling of base material

Technical Field

The utility model relates to a paste the mark equipment field, especially relate to a labeller that is used for base material waist to paste mark.

Background

The export package of fabrics such as blanket, shawl, etc. requires that waist marks are symmetrically pasted on both sides of the waist. The labeling operation is usually completed manually, so the defects of non-uniform labeling, low operation efficiency and high labor cost exist.

The utility model of Chinese patent No. 201410846899.9 discloses a full-automatic labeling system, which comprises a power device and a trademark unwinding mechanism driven by the power device, wherein the middle part in front of the trademark unwinding mechanism is provided with a label brushing mechanism; an upper layer of conveying belt and a lower layer of conveying belt which are parallel are arranged along the vertical direction, each layer of conveying belt is correspondingly provided with a group of waist sealing and labeling parts, the upper group of waist sealing and labeling parts and the lower group of waist sealing and labeling parts are arranged in a staggered mode, and the tail end of the upper layer of conveying belt is provided with an inclined guide plate corresponding to the lower layer of conveying belt. When the front end of the textile is labeled, the suspended end of the trademark on the textile is blown by the rear air nozzle, so that the suspended end is bent downwards, and the bent part is flatly adhered to the lower end face of the textile under the action of the rear brush. When the tail end of the textile is pasted with a mark, the front air nozzle blows air to the suspended end of the textile with the mark, the suspended end is bent downwards, and the bent part is flatly pasted on the lower end face of the textile under the action of the rotary front brush. Although the labeling system realizes the automation of waist label pasting, the labeling structure is complex, the occupied area is large, and the labeling operation production line is long, so that the labeling efficiency is still to be improved.

Disclosure of Invention

An object of the utility model is to provide a labeller of mark is pasted to substrate waist.

Realize the utility model discloses the technical scheme of purpose is: a labeler for labeling the waist of a base material comprises a conveyor belt mechanism arranged on a workbench, wherein labeling units are symmetrically arranged on two sides of a conveyor belt of the conveyor belt mechanism respectively, and a sensor for triggering the labeling units is arranged on the workbench between the two labeling units; each labeling unit comprises a winding mechanism, a label peeling mechanism and a waist labeling device which are sequentially arranged on the workbench along the running direction of the conveyor belt, and an unwinding mechanism is arranged on one side of the winding mechanism, which is far away from the conveyor belt; the label peeling mechanism comprises a label peeling plate, the label peeling plate is fixed on the workbench, and the front side of the label peeling plate is opposite to the base material to be labeled; the label is wound around the front surface of the label peeling plate from the rotating shaft of the unwinding mechanism, and the back surface of the label peeling plate is finally wound on the rotating shaft of the winding mechanism; the waist labeling device comprises a fixed seat, a label plate cylinder, a push rod, an upper guide seat, a lower guide seat, an upper labeling head and a lower labeling head, wherein the front surface of the fixed seat is vertical to the horizontal plane, and the back surface of the fixed seat is fixed on a feeding cylinder which drives the fixed seat to horizontally reciprocate; the front surface of the fixing seat is provided with a mark plate cylinder seat, the mark plate cylinder is fixed on the mark plate cylinder seat, a piston rod of the mark plate cylinder is parallel to the front surface of the fixing seat and faces one side of the base material to be labeled, the rod body of the ejector rod is parallel to the front surface of the fixing seat, the tail end of the rod body of the ejector rod is fixedly connected with the free end of the piston rod of the mark plate cylinder, the head end of the rod body of the ejector rod vertically extends out of a guide seat positioning plate towards the upper side and the lower side of the rod body of the ejector rod, and the tail ends of the upper guide seat and the lower guide seat are respectively fixed on the guide seat positioning plate; the front surfaces of the upper labeling head and the lower labeling head face one side of the conveying belt, the front surfaces of the upper labeling head and the lower labeling head are respectively provided with a sucker, the upper labeling head and the lower labeling head are arranged along the direction vertical to the front surface of the fixing seat and are positioned on the same vertical surface in an initial state, the back surfaces of the upper labeling head and the lower labeling head are respectively provided with a labeling head positioning plate, the labeling head positioning plates are vertically arranged with corresponding labeling heads, each labeling positioning plate is provided with a strip-shaped hole, the two strip-shaped holes are arranged in a splayed shape with a narrow front part and a wide back part relative to the axial direction of a piston rod of the labeling plate cylinder in the initial state, each labeling head positioning plate is sleeved at the front ends of the upper guide seat and the lower guide seat through a pin shaft penetrating through the corresponding strip-shaped hole, and the pin shaft is in sliding connection with the strip-shaped holes; the front surface of the fixed seat is provided with a bracket seat, the outer side surfaces of the upper labeling head and the lower labeling head are respectively and horizontally provided with a bracket, the front end of each bracket is hinged with the outer side surface of the corresponding labeling head, and the tail end of each bracket is fixed on the bracket seat; when the label is peeled, the label peeling plate, the upper and lower label pasting heads are limited in position by the fact that the labels closest to the upper and lower label pasting heads are positioned in front of the suckers of the upper and lower label pasting heads; the worktable in front of each lower labeling head is provided with a groove for the labeling plate to yield, and the conveyor belt mechanism, the sensor, the labeling plate cylinder and the feeding cylinder are respectively in communication connection with the control system.

Furthermore, the label peeling mechanism further comprises a label peeling driving assembly, and the label peeling plate is fixed on the label peeling driving assembly and driven by the label peeling driving assembly to reciprocate along the running direction of the conveyor belt. So that the label is aligned with the labeling head when the label is attracted.

Furthermore, the tail ends of the upper guide seat and the lower guide seat are respectively provided with a positioning groove, the upper guide seat and the lower guide seat are respectively sleeved on the upper end side and the lower end side of the guide seat positioning plate through the positioning grooves, the front surface of the fixing seat is respectively provided with a guide seat slide rail on the running path of the upper guide seat and the running path of the lower guide seat, and the upper guide seat and the lower guide seat are respectively connected with the corresponding guide seat slide rails in a sliding manner.

Furthermore, an upper vertical guide rail and a lower vertical guide rail respectively extend outwards from the upper end side and the lower end side of the front surface of the fixed seat, a screw vertically penetrates through the upper side surface of the upper vertical guide rail and penetrates into the lower vertical guide rail, two ends of the screw are respectively in threaded connection with the upper vertical guide rail and the lower vertical guide rail, a screw rod body of the screw is provided with a positive thread and a negative thread, a slider is respectively screwed in the positive thread and the negative thread sections, an upper standard seat is slidably mounted on the front surface of the upper vertical guide rail, a lower standard seat is slidably mounted on the front surface of the lower vertical guide rail, the upper standard seat is fixedly connected with the slider positioned on the upper rod body of the screw, and the lower standard seat is fixedly connected with the slider positioned on the lower rod body of the screw; the guide seat slide rails are respectively arranged on the upper standard seat and the lower standard seat; the two support seats are respectively arranged on the upper mark seat and the lower mark seat, and the tail end of each support is respectively fixed on one support seat.

The waist labeling device further comprises a synchronous belt transmission mechanism, the synchronous belt transmission mechanism is installed on a liftable synchronous belt wheel seat, a feeding cylinder seat is fixedly installed on a synchronous belt of the synchronous belt transmission mechanism, a feeding cylinder is installed on the feeding cylinder seat, and a first positioning switch used for sensing a base material to be labeled is installed on the workbench; a second positioning switch for positioning the initial position of the feeding cylinder after labeling is finished is arranged on the synchronous pulley seat, and the first positioning switch and the second positioning switch are in communication connection with the control system; when the label shifts to supreme, lower labeling head department from peeling off the mark board, synchronous belt drive mechanism starts to drive and feeds cylinder and mark board cylinder and be close to the conveyer belt until first positioning switch detects to wait to paste mark substrate back synchronous belt drive mechanism and stop, pastes the mark operation, and synchronous belt drive mechanism drives after the subsides mark end and feeds the cylinder and retreat and stop after second positioning switch senses and feeds the cylinder to guarantee to feed the cylinder and peel off the distance of mark board unchangeably, guarantee to paste the mark precision.

Furthermore, the label peeling driving assembly is a label peeling cylinder, and a damping bolt for limiting the stroke of the piston rod is arranged on a cylinder seat of the label peeling cylinder on a telescopic path of the piston rod.

Furthermore, a liftable pressing plate is installed above each groove, the middle of each pressing plate protrudes upwards to form a channel for avoiding the labeling head, pressing support plates horizontally extend outwards from two sides of each pressing plate, and the distance between the two pressing support plates is limited by the fact that the pressing support plates can be in contact with a base material to be labeled when the pressing plates descend.

Further, a press roller mechanism is installed on a running path of the conveyor belt at the front end of the sensor.

Furthermore, install the baffle that can overturn on the workstation between two subsides mark units, the axial of baffle is perpendicular with the traffic direction of conveyer belt, and when the baffle was overturn downwards to being perpendicular with the workstation, the bottom of baffle was a little higher than the conveyer belt upper surface.

Furthermore, a first mounting seat and a second mounting seat which can move back and forth relative to the side face of the conveying belt are sequentially installed on a station where each labeling unit is located along the running direction of the conveying belt, the unwinding mechanism, the label peeling mechanism and the winding mechanism are installed on the first mounting seat, and the waist labeling structure is installed on the second mounting seat.

The utility model discloses a labeller compact structure, the waist of innovation pastes mark device and unwinding mechanism, shell mark mechanism and winding mechanism cooperation, during initial condition, the mark head and the lower mark head of pasting on the waist of pasting mark device open relatively and form label absorption space, and the piston rod of mark time template cylinder stretches out, and upper and lower guide holder removes to the bar hole other end respectively and promotes upper and lower mark head upset and makes upper and lower mark head closed relatively, has realized the quick subsides mark of substrate both sides waist.

Drawings

Fig. 1 is a schematic structural diagram of a labeling machine according to an embodiment of the present invention, wherein arrows represent the moving direction of a conveyor belt;

FIG. 2 is a schematic view of a three-dimensional structure of a waist mark unit according to an embodiment of the present invention

Fig. 3 is a schematic top view of the waist labeling device according to the embodiment of the present invention;

fig. 4 is a schematic perspective view of the waist line labeling device according to the embodiment of the present invention, which does not include a bracket connected to the upper labeling head and a synchronous belt transmission mechanism;

FIG. 5 is a schematic sectional view taken along the direction A-A of the assembly of the fixing base and the sliding table shown in FIG. 4;

FIG. 6 shows a target cylinder according to an embodiment of the present invention; an upper guide seat and a lower guide seat; the assembled structure of the upper and lower labeling heads is shown.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, a labeling machine for labeling the waist of a substrate comprises a conveyor belt mechanism 200 mounted on a workbench 100, wherein two sides of a conveyor belt 2001 of the conveyor belt mechanism 200 are respectively and symmetrically provided with a labeling unit 300, a reversible baffle 400 is mounted on the workbench between the two labeling units 300, the axial direction of the baffle 400 is perpendicular to the running direction of the conveyor belt 2001, when the baffle 400 is turned downwards to be perpendicular to the workbench 100, the bottom of the baffle 400 is slightly higher than the upper surface of the conveyor belt 2001, a sensor (not shown) for triggering the labeling unit is mounted on the workbench between the two labeling units 300, and a press roller mechanism 500 is mounted on the running path of the conveyor belt 2001 at the front end of the baffle 400; each labeling unit 300 comprises a winding mechanism 10, a label peeling mechanism 20 and a waist labeling device 30 which are sequentially arranged along the running direction of the conveyor belt, an unwinding mechanism 40 is installed on one side of the winding mechanism 10, which is far away from the conveyor belt, a first mounting seat 50 and a second mounting seat 60 which can move back and forth relative to the side of the conveyor belt 2001 are sequentially installed on the station where each labeling unit 300 is located along the running direction of the conveyor belt 2001, the winding mechanism 10, the label peeling mechanism 20 and the unwinding mechanism 40 are installed on the first mounting seat 50, and the waist labeling mechanism 30 is installed on the second mounting seat 60.

The label peeling mechanism 20 comprises a label peeling plate 201 and a label peeling cylinder 202 for driving the label peeling plate 201 to reciprocate along the running direction of the conveyor belt 2001; a damping bolt 203 for limiting the stroke of the piston rod is arranged on the cylinder seat of the label stripping cylinder 202 on the telescopic path of the piston rod; the front side of the label stripping plate 201 is back to the base material to be labeled; the label (not shown) is wound around the front surface of the label peeling plate 201 from the rotary shaft of the unwinding mechanism 40, and the back surface of the label peeling plate 201 is finally wound around the rotary shaft of the winding mechanism 10.

As shown in fig. 3 to 6, the waist labeling device comprises a fixed seat 1, a label plate cylinder 2, a top rod 3, an upper guide seat 41, a lower guide seat 42, an upper labeling head 51 and a lower labeling head 52; the front surface 11 of the fixed seat 1 is vertical to the horizontal plane, and the back surface of the fixed seat 1 is fixed on a feeding cylinder 6 which drives the fixed seat to horizontally reciprocate; a target cylinder seat 21 is arranged on the front surface 11 of the fixed seat 1, the target cylinder 2 is fixed on the target cylinder seat 21, a piston rod 22 of the target cylinder 2 is parallel to the front surface 11 of the fixed seat 1 and faces one side of a base material (not shown) to be labeled, a rod body of the ejector rod 3 is parallel to the front surface 11 of the fixed seat, the tail end 31 of the ejector rod body is fixedly connected with the free end of the piston rod 22 of the target cylinder 2, a guide seat positioning plate 33 vertically extends out of the upper and lower sides of the head end 32 of the ejector rod body, a positioning groove 411 is arranged at the tail end of the upper guide seat 41, a positioning groove 421 is arranged at the tail end of the lower guide seat 42, and the upper guide seat 41 and the lower guide seat 42 are respectively sleeved at the upper and lower ends of the guide seat positioning plate 33 through the positioning groove; the front surfaces of the upper labeling head 51 and the lower labeling head 52 face one side of a base material to be labeled, the front surfaces of the upper labeling head 51 and the lower labeling head 52 are respectively provided with a sucker 53, the upper labeling head 51 and the lower labeling head 52 are arranged along the direction perpendicular to the front surface 11 of the fixing base 1 and are positioned on the same vertical plane in an initial state, the back surfaces of the upper labeling head 51 and the lower labeling head 52 are respectively provided with a labeling head positioning plate 54, the labeling head positioning plate 54 is arranged perpendicular to the corresponding labeling head, each labeling positioning plate 54 is provided with a strip-shaped hole 541, the two strip-shaped holes 541 are arranged in a splayed shape with a narrow front part and a wide back part in an axial direction of the piston rod 22 of the corresponding labeling plate cylinder in an initial state, each labeling head positioning plate 54 is respectively sleeved at the front ends of the upper guide seat 41 and the lower guide seat 42 through a pin shaft 55 penetrating through the corresponding strip-shaped hole 541, and the pin shaft 55 is slidably connected with the strip-shaped holes 541.

An upper vertical guide rail 12 and a lower vertical guide rail 13 extend outwards from the upper end side and the lower end side of the front face of the fixed seat 1 respectively, a screw 7 vertically penetrates through the upper side face of the upper vertical guide rail 12 and penetrates into the lower vertical guide rail 13, two ends of the screw 7 are in threaded connection with the upper vertical guide rail (12) and the lower vertical guide rail (13) respectively, a handle 71 is screwed at the upper end part of the screw 7, a rod body of the screw 7 is provided with a positive thread and a negative thread, a sliding block (73, 74) is screwed at the positive thread and the negative thread sections between the upper vertical guide rail 12 and the lower vertical guide rail 13 respectively, an upper standard seat 81 is slidably mounted at the front face of the upper vertical guide rail 12, a lower standard seat 82 is slidably mounted at the front face of the lower vertical guide rail 13, the upper standard seat 81 is fixedly connected with the sliding block 71 located on the rod body of the screw 7, and the lower standard seat 82 is fixedly connected with the sliding block 74 located on the rod body located below the screw 7; the upper and lower standard seats 81 and 82 are respectively provided with a guide seat slide rail 43 on the running path of the upper and lower guide seats (41, 42), and the upper and lower guide seats 41 and 42 are respectively connected with the corresponding guide seat slide rail 43 in a sliding manner.

A bracket seat 91 is respectively arranged on the upper label seat 81 and the lower label seat 82, a bracket 9 is respectively and horizontally arranged on the outer side surfaces of the upper label head 51 and the lower label head 52, the front end of each bracket 9 is hinged with the corresponding outer side surface of the label head, and the tail end of each bracket 9 is fixed on the bracket seat 91; the target cylinder 2 and the feeding cylinder 6 are respectively connected with a control system (not shown) in a communication way.

Further, the waist labeling device further comprises a synchronous belt transmission mechanism 101, the synchronous belt transmission mechanism 101 is installed on a liftable synchronous belt wheel seat 104, a synchronous belt 1011 of the synchronous belt transmission mechanism is fixedly provided with a feeding cylinder seat 61, a feeding cylinder 6 is installed on the feeding cylinder seat 61, and the workbench 100 is provided with a first positioning switch 102 for sensing a base material to be labeled; the synchronous pulley seat 104 is provided with a second positioning switch 103 for positioning the initial position of the feeding cylinder 6 after the labeling is finished, and the first positioning switch 102 and the second positioning switch 103 are both in communication connection with the control system 700.

As shown in fig. 1, a groove 1001 for giving way to the labeling plate is formed in the workbench 100 in front of each lower labeling head 51, a lifting pressing plate 600 is mounted above each groove 1001, the middle part of the pressing plate 600 protrudes upwards to form a channel for giving way to the upper labeling head 51, pressing support plates 6001 extend out from two sides of the pressing plate 600 horizontally, and the distance between the two pressing support plates 6001 is limited by the fact that the pressing support plates can contact with a base material to be labeled when the pressing plate descends; the conveyor belt mechanism 200, the sensor, the label stripping cylinder 202, the label plate cylinder 2, the feeding cylinder 6, the first positioning switch 102 and the second positioning switch 103 are respectively in communication connection with the control system 700.

The operating principle of the labeling machine of the embodiment is as follows:

in the initial state, the upper labeling head 51 and the lower labeling head 52 are opened relatively and form a label suction space perpendicular to the front surface 11 of the fixing base 1, and the feeding cylinder 6 is located at the second positioning switch 103. When a base material to be labeled is manually placed on the conveyor belt 2001, the base material to be labeled is flattened by the press roller 500 and then is continuously conveyed to a position between the two labeling units 30 by the conveyor belt 2001, the base material to be labeled is sensed by the sensor, the baffle 400 turns downwards to block the base material to be labeled, and meanwhile, the label stripping cylinder 202 receives an instruction of the control system to drive the label stripping plate 201 to move to one side of the waist labeling device to be opposite to the upper and lower labeling heads; the feeding cylinder 6 receives an instruction of the control system to extend out of a piston rod, the fixed seat 1, the target plate cylinder 2 and the upper and lower labeling heads (51, 52) are driven to move forwards to the position of a label stripping plate, the upper and lower labeling heads (51, 52) and the label stripping plate 201 respectively suck a label and a bottom film, the label is separated from the bottom film, then the label stripping plate 201 retreats, a driving motor of the synchronous belt transmission mechanism 101 drives a synchronous belt 1011 to rotate so as to drive the feeding cylinder 6 and the target plate cylinder 2 to move forwards, when the first positioning switch 102 detects a base material to be labeled, the control system sends an instruction to stop the synchronous belt transmission mechanism 101, the piston rod of the target plate cylinder 2 extends out, the upper guide seat 41 and the lower guide seat 42 respectively move towards the other end of the strip-shaped hole to push the upper labeling head 51 and the lower labeling head 52 to turn over so that the upper and lower labeling heads are relatively closed to label; after the subsides mark flow, the piston rod of mark board cylinder is packed up, goes up the mark head and opens with lower mark head, and then the piston rod of feeding cylinder 6 withdraws, and synchronous belt drive mechanism gyration drives feeding cylinder 6 and removes to second positioning switch 103 department simultaneously, accomplishes a mark flow from this.

If the position of the substrate to be labeled is slightly inclined, the baffle 400 can be righted to be attached to the side surface of the baffle.

Unwinding mechanism, winding mechanism's structure is prior art, does not describe herein repeatedly.

The tail ends of the upper guide seat and the lower guide seat can be directly and fixedly connected with the guide seat positioning plate; the guide holder slide rail sets up as required, can promote the stability of guide holder action when addding the guide holder slide rail.

The upper vertical guide rail, the lower vertical guide rail and the screw with the positive and negative threads realize the adjustment of the space between the upper and lower labeling heads, so that the labeling operation of the base materials to be labeled with different thicknesses can be matched; when the waist labeling device is a structure with nonadjustable distance between the upper and lower labeling heads, the tail end of the bracket is directly fixed on the fixed seat.

Synchronous belt drive mechanism can set up as required, and when mark device was pasted to waist only relied on the feed cylinder to drive mark board cylinder linear motion, the initial position of mark board cylinder should guarantee upper and lower labeller head and the interval of shelling the mark board effectively shell the mark within range, when the label adsorbed upper and lower labeller head, restart feed cylinder delivered the mark board cylinder to subsides mark station. However, the distance between the edge of the base material and the waist label labeling mechanism may change due to manual placement of the base material, and the strokes of the two ends of the feeding cylinder are limited by the machine, so that the strokes are fixed and unchanged, and the distance between the labeling head and the base material cannot be adjusted according to the position change of the base material to be labeled. And the synchronous belt transmission mechanism and the first positioning switch realize the adjustment of the distance between the labeling head and the base material to be labeled during labeling, and the second positioning switch ensures that the distance between the feeding cylinder and the label stripping plate is unchanged.

The label stripping plate can be fixed at the front side of the upper and lower label pasting heads, as long as the label is tightly wound on the label stripping plate, when the unwinding mechanism and the winding mechanism are started, the label closest to the upper and lower label pasting heads can be automatically separated from the bottom film and is opposite to the label pasting head, and the vacuum degree of the suction cups of the upper and lower label pasting heads can be enough to transfer the label to the upper and lower label pasting heads.

The label peeling driving assembly is a label peeling cylinder, and a damping bolt for limiting the stroke of the piston rod is arranged on a cylinder seat of the label peeling cylinder on a telescopic path of the piston rod.

The clamp plate sets up as required, adds the clamp plate and can treat when pasting the mark operation mark substrate carry on spacingly, promotes to paste the stability of mark operation.

The compression roller mechanism is arranged as required, and the compression roller mechanism is additionally arranged, so that the surface of the base material to be labeled can be more flat.

The baffle sets up as required, adds the baffle and can treat that the mark substrate is further spacing to with put askew substrate position slightly and rectify.

The first mounting seat and the second mounting seat can move back and forth relative to the side surface of the conveying belt, so that the whole adjustment of the labeling unit is realized.

The above only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent flow transform that the content of the specification was made, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a patent protection within range.

Claims (10)

1. A labeller for base material waist pastes mark which characterized in that: the automatic labeling machine comprises a conveyor belt mechanism arranged on a workbench, wherein two sides of a conveyor belt of the conveyor belt mechanism are respectively and symmetrically provided with a labeling unit, and a sensor for triggering the labeling units is arranged on the workbench between the two labeling units; each labeling unit comprises a winding mechanism, a label peeling mechanism and a waist labeling device which are sequentially arranged on the workbench along the running direction of the conveyor belt, and an unwinding mechanism is arranged on one side of the winding mechanism, which is far away from the conveyor belt; the label peeling mechanism comprises a label peeling plate, the label peeling plate is fixed on the workbench, and the front side of the label peeling plate is opposite to the base material to be labeled; the label is wound around the front surface of the label peeling plate from the rotating shaft of the unwinding mechanism, and the back surface of the label peeling plate is finally wound on the rotating shaft of the winding mechanism; the waist labeling device comprises a fixed seat, a label plate cylinder, a push rod, an upper guide seat, a lower guide seat, an upper labeling head and a lower labeling head, wherein the front surface of the fixed seat is vertical to the horizontal plane, and the back surface of the fixed seat is fixed on a feeding cylinder which drives the fixed seat to horizontally reciprocate; the front surface of the fixing seat is provided with a mark plate cylinder seat, the mark plate cylinder is fixed on the mark plate cylinder seat, a piston rod of the mark plate cylinder is parallel to the front surface of the fixing seat and faces one side of the base material to be labeled, the rod body of the ejector rod is parallel to the front surface of the fixing seat, the tail end of the rod body of the ejector rod is fixedly connected with the free end of the piston rod of the mark plate cylinder, the head end of the rod body of the ejector rod vertically extends out of a guide seat positioning plate towards the upper side and the lower side of the rod body of the ejector rod, and the tail ends of the upper guide seat and the lower guide seat are respectively fixed on the guide seat positioning plate; the front surfaces of the upper labeling head and the lower labeling head face one side of the conveying belt, the front surfaces of the upper labeling head and the lower labeling head are respectively provided with a sucker, the upper labeling head and the lower labeling head are arranged along the direction vertical to the front surface of the fixing seat and are positioned on the same vertical surface in an initial state, the back surfaces of the upper labeling head and the lower labeling head are respectively provided with a labeling head positioning plate, the labeling head positioning plates are vertically arranged with corresponding labeling heads, each labeling positioning plate is provided with a strip-shaped hole, the two strip-shaped holes are arranged in a splayed shape with a narrow front part and a wide back part relative to the axial direction of a piston rod of the labeling plate cylinder in the initial state, each labeling head positioning plate is sleeved at the front ends of the upper guide seat and the lower guide seat through a pin shaft penetrating through the corresponding strip-shaped hole, and the pin shaft is in sliding connection with the strip-shaped holes; the front surface of the fixed seat is provided with a bracket seat, the outer side surfaces of the upper labeling head and the lower labeling head are respectively and horizontally provided with a bracket, the front end of each bracket is hinged with the outer side surface of the corresponding labeling head, and the tail end of each bracket is fixed on the bracket seat; when the label is peeled, the label peeling plate, the upper and lower label pasting heads are limited in position by the fact that the labels closest to the upper and lower label pasting heads are positioned in front of the suckers of the upper and lower label pasting heads; the worktable in front of each lower labeling head is provided with a groove for the labeling plate to yield, and the conveyor belt mechanism, the sensor, the labeling plate cylinder and the feeding cylinder are respectively in communication connection with the control system.

2. A labelling machine according to claim 1, characterised in that: the label peeling mechanism further comprises a label peeling driving assembly, and the label peeling plate is fixed on the label peeling driving assembly and driven by the label peeling driving assembly to reciprocate along the running direction of the conveyor belt.

3. A labelling machine according to claim 1, characterised in that: the tail ends of the upper guide seat and the lower guide seat are respectively provided with a positioning groove, the upper guide seat and the lower guide seat are respectively sleeved on the upper end side and the lower end side of the guide seat positioning plate through the positioning grooves, the front surface of the fixing seat is respectively provided with a guide seat slide rail on the running path of the upper guide seat and the lower guide seat, and the upper guide seat and the lower guide seat are respectively in sliding connection with the corresponding guide seat slide rails.

4. A labelling machine according to claim 3, characterised in that: the upper end side and the lower end side of the front surface of the fixed seat respectively extend outwards to form an upper vertical guide rail and a lower vertical guide rail, a screw vertically penetrates through the upper side surface of the upper vertical guide rail and penetrates into the lower vertical guide rail, two ends of the screw are respectively in threaded connection with the upper vertical guide rail and the lower vertical guide rail, a screw rod body of the screw is provided with a positive thread and a negative thread, a sliding block is respectively screwed in the positive thread and the negative thread sections, an upper standard seat is arranged on the front surface of the upper vertical guide rail in a sliding manner, a lower standard seat is arranged on the front surface of the lower vertical guide rail in a sliding manner, the upper standard seat is fixedly connected with the sliding block positioned on the upper rod body of the screw, and the lower standard seat is fixedly connected with the sliding block positioned on the lower rod body of the screw; the guide seat slide rails are respectively arranged on the upper standard seat and the lower standard seat; the two support seats are respectively arranged on the upper mark seat and the lower mark seat, and the tail end of each support is respectively fixed on one support seat.

5. A labelling machine according to any of claims 1 to 4, characterised in that: the waist line labeling device also comprises a synchronous belt transmission mechanism, the synchronous belt transmission mechanism is arranged on a liftable synchronous belt wheel seat, a feeding cylinder seat is fixedly arranged on a synchronous belt of the synchronous belt transmission mechanism, a feeding cylinder is arranged on the feeding cylinder seat, and a first positioning switch for sensing a base material to be labeled is arranged on the workbench; the synchronous pulley seat is provided with a second positioning switch used for positioning the initial position of the feeding cylinder after labeling is finished, and the first positioning switch and the second positioning switch are both in communication connection with the control system.

6. A labelling machine according to claim 2, characterised in that: the label peeling driving assembly is a label peeling cylinder, and a damping bolt for limiting the stroke of the piston rod is arranged on a cylinder seat of the label peeling cylinder on a telescopic path of the piston rod.

7. A labelling machine according to claim 1, characterised in that: a liftable pressing plate is installed above each groove, the middle of each pressing plate protrudes upwards to form a channel for yielding the upper labeling head, pressing support plates horizontally extend outwards from two sides of each pressing plate, and the distance between the two pressing support plates is limited by the fact that the pressing support plates can be in contact with a base material to be labeled when the pressing plates descend.

8. A labelling machine according to claim 1, characterised in that: and a press roller mechanism is arranged on the running path of the conveyor belt at the front end of the sensor.

9. A labelling machine according to claim 1, characterised in that: install the baffle that can overturn on the workstation between two subsides mark units, the axial of baffle is perpendicular with the traffic direction of conveyer belt, and when the baffle was overturn downwards to perpendicular with the workstation, the bottom of baffle was a little higher than the conveyer belt upper surface.

10. A labelling machine according to claim 1, characterised in that: the station where each labeling unit is located is sequentially provided with a first mounting seat and a second mounting seat which can move back and forth relative to the side face of the conveying belt along the running direction of the conveying belt, the unwinding mechanism, the label peeling mechanism and the winding mechanism are arranged on the first mounting seat, and the waist labeling structure is arranged on the second mounting seat.

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