CN216889344U - Plastic bag roll labeling device - Google Patents

Abstract

The utility model discloses a labeling device for a plastic bag roll, which comprises a rack, wherein a label sticking frame is arranged on the rack, a bag tail guide mechanism with the tail end removed and positioned at the side of a bag roll is fixedly arranged on the label sticking frame, a spreading sprayer for blowing the bag tail of the bag roll to the bag tail guide mechanism is arranged on the rack, a bag tail detector is arranged at the tail end of the bag tail guide mechanism on the label sticking frame, and a label supplying component and a label sticking driver are arranged at the tail end removed position of the bag tail guide mechanism on the label sticking frame. The labeling machine can be used together with the existing winding mechanism, and is low in cost, accurate in labeling and good in appearance quality after labeling.

Description

Plastic bag roll labeling device

Technical Field

The utility model relates to the technical field of plastic bag winding equipment, in particular to a labeling device for a plastic bag roll.

Background

A bag rolling machine is a device for continuously rolling plastic bags which are processed by heat seal processing and pre-line cutting into plastic bag rolls in a bag making system. After rolling, in order to avoid the loose tail of the bag roll and improve the transportation and storage quality, the bag roll is usually packaged to a certain degree. At present, the package of the bag roll is realized by manually tying an elastic band or manually sticking a label on the tail of the bag. The manual labeling operation is complicated, the labor intensity is high, the randomness of the manual labeling is high, the tightness of the bag roll after labeling is not guaranteed, and the quality of the bag roll is influenced.

At the present stage, a bag rolling machine for automatically labeling at the last time of rolling is also provided in the market to replace manual labeling operation. The bag rolling machines usually detect the bag tail position at the initial breaking position on the basis of the existing rolling structure, and calculate the subsequent rolling revolution number of a rolling motor according to the distance between the initial breaking position and the rolling position; after the rolling motor continues to roll for the revolution, the bag tail is automatically wound on the bag roll and is located at a fixed position on the circumference of the bag roll, and then the labeling device feeds to label the bag tail on the bag roll.

Although the automatic labeling degree of the bag rolling machine is greatly improved, the bag rolling machine still has some defects. Firstly, when the bag tail is detected at the initial stage of fracture, because the bag tail has the characteristics of instantaneous movement and free flutter, the detector can only adopt a high-precision correlation type position sensor to realize accurate detection, and correspondingly, a rolling motor also needs to adopt a servo motor with higher precision to accurately position the position of the rolled bag tail; due to the use of high-precision accessories, the overall cost of the labeling device is very high, the price of two to three thousand is additionally increased when a bag rolling machine of the labeling device is assembled, and the overall cost ratio of the bag rolling machine is reduced. Secondly, the bag tail is broken and the bag tail is broken initially to have short-term movement and the bag tail is in a floating state when being continuously rolled, so that the bag tail is rolled on a bag roll at last and is often in disorder, the labeling effect of the bag tail is poor, and the appearance quality after labeling is poor.

Therefore, a labeling device which can be used together with the existing winding mechanism, has low cost, accurate labeling and good appearance quality after labeling needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a plastic bag rolling and labeling device which can be matched with the existing rolling mechanism for use, and has the advantages of lower cost, accurate labeling and good appearance quality after labeling.

In order to solve the technical problems, the technical scheme of the utility model is as follows: plastics bag book mark device, which comprises a frame, be equipped with the mark frame in the frame, the fixed bag tail guiding mechanism who goes the tail end to be located bag book side that is equipped with on the mark frame, be equipped with in the frame with the bag tail of bag book blow to bag tail guiding mechanism's the ware that blows of spreading, mark frame is last to be located bag tail guiding mechanism comes tail end department and is equipped with bag tail detector, mark frame is last to be located bag tail guiding mechanism's the tail end department of going is equipped with supplies mark subassembly and subsides mark driver.

As a preferred technical scheme, a tail-following brush is installed on the bag tail guide mechanism, and the free end of the tail-following brush is obliquely arranged on the near surface of the bag roll.

According to a preferable technical scheme, the labeling driver comprises a labeling swing arm which is arranged at the tail removing end of the labeling frame in a swinging mode, a labeling balance wheel is rotatably arranged at the free end of the labeling swing arm, and a labeling driving spring is arranged between the labeling swing arm and the labeling frame.

As a preferred technical scheme, the labeling driver comprises a labeling cylinder fixedly arranged at the tail end removing end of the labeling frame, and a piston rod of the labeling cylinder extends out towards the bag roll.

As preferred technical scheme, paste the mark driver including fixed the setting and be in the blowing of label frame's tail end department is pasted the air cock, the blowing air cock is towards the bag book jetting setting.

As a preferable technical scheme, a bag smoothing brush is further installed on the label sticking frame.

As a preferable technical scheme, a label detector is arranged on the labeling rack.

As a preferred technical solution, the spreading blower includes a fan-shaped air nozzle.

As a preferred technical scheme, the labeling frame is movably arranged on the rack, and a labeling feeding driver is arranged between the labeling frame and the rack.

According to a preferable technical scheme, a rolling-out inclined table is fixedly arranged on the rack below the bag roll.

Owing to adopted above-mentioned technical scheme, plastics bag book mark device, which comprises a frame, be equipped with the label frame in the frame, the fixed bag tail guiding mechanism who goes the tail end to be located bag book side that is equipped with on the label frame, be equipped with in the frame with the bag tail blow to the spreading blowout preventer of bag tail guiding mechanism, be located on the label frame bag tail guiding mechanism comes tail end department and is equipped with bag tail detector, be located on the label frame bag tail guiding mechanism's the tail end department of going is equipped with and supplies mark subassembly and subsides mark driver. The bag tail is blown off from the bag roll by the spreading blower, and the unfolded bag tail is laid on the bag tail guide mechanism by the aid of air flow blown by the spreading blower. Under the continuous rotation drive of the bag roll by the rolling motor, the bag tail equivalently moves in a plane one-way mode on the bag tail guide mechanism and is completely free from the influence of play and drifting. After the bag tail is detected, the labeling action time can be easily obtained according to the distance between the bag tail detector and the labeling driver and the rotating speed of the winding motor, and the labeling is accurate. Accurate labeling is not required to be dependent on the accurate stop of a servo motor, and the winding motor can be realized by adopting a conventional motor. Therefore, the cost is greatly reduced no matter the bag tail is detected or the motor is wound. And the airflow of the spreading sprayer and the support of the bag tail guide mechanism ensure that the bag tail is wound smoothly, and the appearance quality is good after labeling. The utility model can be matched with the existing winding mechanism for use, and has higher popularization value.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a schematic cross-sectional view of a middle portion of a first embodiment of the present invention;

FIG. 2 is a schematic top view of an enlarged structure according to a first embodiment of the present invention;

FIG. 3 is a schematic rear view of the first embodiment of the present invention;

FIG. 4 is a schematic view of a rolling mechanism in cooperation with a rolling mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of a configuration of an output roll of bags after labeling according to one embodiment of the present invention;

FIG. 6 is a schematic sectional view of the middle part of the second embodiment of the present invention;

fig. 7 is a schematic sectional view of the middle part of the third embodiment of the present invention.

In the figure: 1-a frame; 11-a winding mechanism; 2-label sticking frame; 21-labeling driver; 211-labeling swing arm; 212-a labelled balance wheel; 213-paste mark driving spring; 22-a bag tail detector; 23-smoothing out the bag and brushing; 24-a label feed driver; 25-a label detector; 3-a bag tail guide mechanism; 31-leading end; 32-removing tail ends; 33-a tail brush; 4-a label supply assembly; 41-paper tape; 42-a label; 5-spreading blowing device; 6, rolling out the inclined table; 7-bag rolls; 71-bag tail.

Detailed Description

The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, exemplary embodiments of the utility model are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

The first embodiment is as follows: as shown in fig. 1 to 5, the plastic bag roll labeling device includes a frame 1, where the frame 1 may be shared with a bag rolling machine or may be provided separately in this embodiment; when used with a take-up mechanism 11, the frame 1 is preferably common with a bag rolling machine. The winding mechanism 11 includes a winding motor, and a power end of the winding motor winds the plastic bag and finally winds the plastic bag into the bag roll 7, which is a known technology in the art and is not described herein again.

Be equipped with label sticking frame 2 on the frame 1, label sticking frame 2 is last to be fixed to be equipped with to go tail end 32 to be located the bag tail guiding mechanism 3 that 7 sides were rolled up to the bag, be equipped with in the frame 1 with the bag tail 71 of bag book 7 blow to the sprayer 5 that spreads of bag tail guiding mechanism 3. The spreading blower 5 can blow the bag tail 71 off the bag roll 7 and the air flow it blows can spread the spread bag tail 71 over the bag tail guide 3. The bag tail guide mechanism 3 refers to the advancing direction of the bag tail 71, and takes one end of the bag tail 71 in the coming direction as the tail end 31 and one end of the bag tail 71 in the going direction as the tail end 32. Based on the effect of the bag tail guiding mechanism 3 supporting the spread bag tail 71, it can be realized by adopting a structure capable of forming a certain plane or a smooth surface, and this embodiment is illustrated by a plate-shaped structure, and certainly, can also be realized by an arc plate or a net-shaped structure and the like. The spreading blower 5 of this embodiment includes a fan-shaped air nozzle, and the fan-shaped air nozzle can improve the blowing-off effect and the spreading effect of the bag tail 71. Preferably, the fan-shaped air nozzle is arranged on one side of the bag roll 7 far away from the bag tail guide mechanism 3, so as to play a good role in blowing off the bag tail 71.

The bag tail detector 22 is arranged at the position, located at the bag tail end 31, of the label sticking frame 2, of the bag tail guide mechanism 3, and the bag tail detector 22 can effectively detect the bag tail 71 which moves on the bag tail guide mechanism 3 in a single direction. The present embodiment illustrates that the bag tail detector 22 is directly disposed at the tail end 31 of the bag tail guide mechanism 3. Preferably, the bag tail detector 22 is directly disposed on one side of the bag tail guide mechanism 3, which is far away from the bag roll 7, of the bag tail end 31, and the bag tail end 31 of the bag tail guide mechanism 3 is provided with a bag tail 71 detection avoidance opening corresponding to the bag tail detector 22. Through the structure, the bag tail guide mechanism 3 can be right the peripheral sundries in the detection direction of the bag tail detector 22 are shielded, so that the bag tail detector 22 is penetrated through the bag tail 71 detection avoiding opening only detects the bag tail 71, and the precision of the bag tail 71 detection is improved.

The label supplying component 4 and the label sticking driver 21 are arranged at the tail removing end 32 of the bag tail guide mechanism 3 on the label sticking frame 2. The label feeding assembly 4 is used for feeding the label 42 to the tail end 32 of the tail guide mechanism 3, and the labeling driver 21 is used for adhering the fed label 42 to the tail 71 of the bag roll 7 to form a labeled package. Conventionally, the label supply assembly 4 includes a label 42 separation head, the label 42 separation head including a tape return side facing the roll of bags 7, and a label supply side opposite to the tape return side, the label supply side being connected with a label supply device, and the tape return side being connected with a tape winding device. The label 42-attached paper tape 41 fed out by the label feeder is folded back at a nearly 180 ° at the separation end of the label 42, and the label 42 having a high strength is naturally separated from the paper tape 41. The structural principle of the label supplying component 4 is well known to those skilled in the art and will not be described herein.

In this embodiment, the label detector 25 is disposed on the label frame 2 and is used for detecting the position of the label 42 supplied by the label supplying component 4 to match with the labeling action to accurately label the label. The label detector 25 may detect the length of the stepwise output of the paper tape 41 each time by the difference in color of the label 42 with respect to the paper tape 41 before separation to determine the position of the label 42, or may detect the position of the label 42 by directly sensing the separated label 42 at the trailing end 32 of the bag tail guide mechanism 3.

The labeling driver 21 comprises a labeling swing arm 211 which is arranged at the tail end 32 of the labeling frame 2 in a swinging mode, a labeling balance wheel 212 is arranged at the free end of the labeling swing arm 211 in a rotating mode, and a labeling driving spring 213 is arranged between the labeling swing arm 211 and the labeling frame 2. The labeling balance 212 is pressed against the bag roll 7 by the spring force of the labeling drive spring 213. Based on the above described swing arm balance arrangement, label 42 does not separate from paper strip 41, or only a small amount, before bag tail 71 comes, generally subject to label 42 not sticking itself to roll 7. When the tail 71 comes between the roll 7 and the labelling balance 212, the label supply assembly 4 is activated to output the label 42 between the roll 7 and the labelling balance 212. The output speed of the label pasting machine is matched with the winding speed, and the label 42 which is continuously separated can be accurately pasted to the bag tail 71 under the guiding action of the labeling balance wheel 212, so that labeling is realized. The label 42 can be firmly adhered to the tail 71 of the bag roll 7 by the pressing action of the labeling balance wheel 212, so that the labeling effect is good.

The rolling action of the labeling balance wheel 212 can reduce the rolling resistance, realize better guiding and pressing labeling effects and have extremely low labeling error rate. Of course, the labeling balance wheel 212 may be replaced by a labeling pressing plate with a smooth surface, or the labeling swing arm 211 is vertically slidably mounted, and the labeling balance wheel 212 performs labeling by pressing; these solutions are intended to be within the scope of the present invention. In addition, because the arrangement of the labeling swing arm 211 and the labeling balance 212 of the present embodiment occupies a large space at the tail end 32 of the tail guide mechanism 3, the label detector 25 of the present embodiment adopts a scheme of detecting the length of the stepwise output of the paper tape 41 every time by the color difference of the label 42 with respect to the paper tape 41 before separation to determine the position of the label 42.

Preferably, a tail-following brush 33 is installed on the bag tail guide mechanism 3, and the free end of the tail-following brush 33 is obliquely arranged on the near surface of the bag roll 7. The tail-following brush 33 has more functions, and is used for filling the gap between the bag roll 7 and the bag tail guide mechanism 3, so that the bag tail 71 guide support device can adapt to bag rolls 7 with different thicknesses and is matched with the bag tail guide mechanism 3 to guide and support the bag tail 71; secondly, the bag roll 7 can be combed to be compact, so that the appearance quality after final labeling can be improved, the advancing distance of the bag tail 71 from the detected labeling can be kept stable, the loose influence of the bag roll 7 is avoided, and the labeling accuracy is ensured; and thirdly, the plastic bag is prevented from being damaged by a rigid structure due to the flexible supporting function, and the final quality of the bag roll 7 is ensured.

In this embodiment, the label sticking frame 2 is movably mounted on the frame 1, and a label feeding driver 24 is arranged between the label sticking frame 2 and the frame 1. At the end of winding, the labeling frame 2 is driven by the labeling feeding driver 24 to the vicinity of the bag roll 7 for labeling operation. This embodiment shows that the label sticking frame 2 is vertically slidably mounted on the rack 1, and the label sticking and feeding driver 24 is realized by direct lifting driving of an air cylinder. Of course, the structure is that the labeling is fed from the lower direction, the labeling is fed towards the bag roll 7 in the horizontal direction, or the labeling is fed towards the bag roll 7 in an inclined manner; in addition, the label sticking frame 2 can also be arranged on the machine frame 1 in a swinging mode, and feeding is realized by swinging towards the bag roll 7, and the structural scheme is within the protection scope of the utility model.

A roll-out inclined table 6 is fixedly arranged below the bag roll 7 on the rack 1, and after labeling is finished, the bag roll 7 falls onto the roll-out inclined table 6 to realize output. Based on this embodiment the vertical feeding of label sticking frame 2, can set up the lift on the play book sloping platform 6 and dodge the mouth to the cooperation label sticking frame 2 feeds the operation.

In the embodiment, at the end of winding, the labeling frame 2 is driven to feed, the tail smoothing brush 33 firstly contacts with the bag roll 7 and continuously smoothes the broken plastic bag part to tightly wind the plastic bag part on the bag roll 7; the labelling balance 212 is also pressed elastically against the bag roll 7. The spreading blower 5 is then switched on to blow the bag tail 71 off the bag roll 7 and spread on the bag tail guide 3 under the action of the air flow. Under the continuous winding action of the winding motor, the bag tail 71 moves in a single direction on the bag tail guide mechanism 3 and is detected by the bag tail detector 22 when passing through the bag tail detector 22, and the bag tail detector 22 sends out a signal. The time for the bag tail 71 to reach the labelling drive 21 can easily be calculated from the distance between the bag tail detector 22 and the labelling drive 21 and the rotational speed of the take-up motor. The label supplying component 4 operates before the bag tail 71 reaches the labeling position, the labeling driver 21 can smoothly paste the synchronously output labels 42 to the bag tail 71 of the bag roll 7, and the step output length controlled by the label detector 25 is determined according to the condition that the labels 42 stuck with the bag tail 71 can be completely separated from the paper strip 41 and the next labels 42 cannot be contacted with the bag roll 7. Under the subsequent continuous rotation action of the bag roll 7, the labeling balance wheel 212 can press the label 42 of the bag tail 71 for multiple times, so that the label 42 is firmly adhered. The label holder 2 is then driven back and the roll 7 is released onto the unwind ramp 6 for output.

In this embodiment, the bag tail 71 is equivalent to one-way movement on the bag tail guide mechanism 3 before labeling, and is not affected by play and floating at all, and the bag tail detector 22 can easily detect the bag tail 71 without using a high-precision sensor. After the bag tail 71 is detected, the labeling action time can be easily obtained according to the distance between the bag tail detector 22 and the labeling driver 21 and the rotating speed of the winding motor, and the labeling is accurate. Accurate labeling is not required to be dependent on the accurate stop of a servo motor, and the winding motor can be realized by adopting a conventional motor. Therefore, the cost is greatly reduced no matter the bag tail 71 is detected or the motor is wound. The airflow of the spreading sprayer 5, the support of the bag tail guide mechanism 3 and the smoothing of the tail smoothing brush 33 are added, the bag tail 71 is wound smoothly, and the appearance quality after labeling is good. This embodiment can support current winding mechanism 11 and use, and the cooperation has core rolling and centreless rolling all can, and spreading value is higher.

Example two: as shown in fig. 6, the present embodiment is different from the first embodiment in that: the labeling driver 21 comprises a labeling cylinder fixedly arranged at the tail end 32 of the labeling frame 2, and a piston rod of the labeling cylinder extends towards the bag roll 7. In this embodiment, the label 42 is pushed by the labeling cylinder and attached to the bag roll 7. With this structure, the label feeding assembly 4 feeds the labels 42 before labeling, in which the labels are mostly separated from the paper tape 41 and a short section remains to be connected to the paper tape 41; when the tail 71 comes to the labeling driver 21, the labeling cylinder pushes the label 42 to be adhered to the tail 71 of the roll 7, and then the roll 7 is continuously rolled up to completely separate the label 42. In this embodiment, the labeling driver 21 performs labeling by instant pressing, and as an alternative to the instant pressing, the labeling driver 21 in this embodiment includes a blowing nozzle fixedly disposed at the tail-removing end 32 of the label frame 2, and the blowing nozzle is arranged toward the bag roll 7; the air flow instantly blown out by the blowing nozzle blows the label 42 to be adhered to the bag roll 7. This solution is also within the scope of protection of the present invention. Of course, no matter the blowing nozzle or the labeling cylinder, the blowing nozzle or the labeling cylinder should be used together with the labeling solenoid valve and the high-pressure air source, which are easily obtained by the skilled in the art according to the common general knowledge and are not described in detail and shown in the drawings. Based on the fact that the label 42 is mostly separated in advance when the labeling driver 21 of the present embodiment is in use, the label detector 25 of the present embodiment senses the separated label 42 directly at the tail end 32 of the tail guide mechanism 3 to detect the position of the label 42.

Example three: as shown in fig. 7, the present embodiment is different from the first embodiment in that: and a bag smoothing brush 23 is also arranged on the label sticking frame 2. The bag smoothing brush 23 mainly has two functions, namely before labeling, the bag smoothing brush is matched with the tail smoothing brush 33 to continuously smooth the plastic bag wound on the bag roll 7 to ensure the winding compactness of the bag roll 7, and after labeling, the label 42 is pressed in an auxiliary mode to enhance the adhesion effect. Preferably, the bag smoothing brush 23 is arranged on one side of the bag roll 7 far away from the bag tail guide mechanism 3.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. Plastics bag book mark device, including the frame, be equipped with mark frame, its characterized in that in the frame: the label sticking frame is fixedly provided with a bag tail guide mechanism with the tail end located on the side of the bag roll, the rack is provided with a bag tail blowing device for blowing the bag tail of the bag roll to the spreading blowing device of the bag tail guide mechanism, the label sticking frame is provided with a bag tail detector at the tail end of the bag tail guide mechanism, and the label sticking frame is provided with a label supplying assembly and a label sticking driver at the tail end of the bag tail guide mechanism.

2. The plastic bag roll labeling apparatus of claim 1, wherein: the bag tail guide mechanism is provided with a tail brush, and the free end of the tail brush is obliquely arranged on the near surface of the bag roll.

3. The plastic bag roll labeling device according to claim 1, wherein: the labeling driver comprises a labeling swing arm which is arranged at the tail removing end of the labeling frame in a swinging mode, a labeling balance wheel is rotatably arranged at the free end of the labeling swing arm, and a labeling driving spring is arranged between the labeling swing arm and the labeling frame.

4. The plastic bag roll labeling apparatus of claim 1, wherein: the labeling driver comprises a labeling cylinder fixedly arranged at the tail end removing end of the labeling frame, and a piston rod of the labeling cylinder extends out towards the bag roll.

5. The plastic bag roll labeling apparatus of claim 1, wherein: the labeling driver comprises a blowing and attaching air nozzle fixedly arranged at the tail removing end of the labeling frame, and the blowing and attaching air nozzle is arranged towards the bag roll in a blowing mode.

6. The plastic bag roll labeling apparatus of claim 1, wherein: and the label sticking frame is also provided with a bag smoothing brush.

7. The plastic bag roll labeling apparatus of claim 1, wherein: and a label detector is arranged on the labeling rack.

8. The plastic bag roll labeling apparatus of claim 1, wherein: the spreading blower comprises a fan-shaped air nozzle.

9. The plastic bag roll labeling apparatus of claim 1, wherein: the label sticking frame is movably arranged on the rack, and a label sticking and feeding driver is arranged between the label sticking frame and the rack.

10. The plastic bag roll labeling apparatus of claim 1, wherein: and a roll-out inclined table is fixedly arranged below the bag roll on the rack.

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