CN210161678U

CN210161678U - Uncoiling mechanism of bag making machine

Info

Publication number: CN210161678U
Application number: CN201920552485.3U
Authority: CN
Inventors: 林浙军
Original assignee: Pinghu Chenxing Plastic Products Co Ltd
Current assignee: Pinghu Chenxing Plastic Products Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2020-03-20
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses an unwinding mechanism of system bag machine relates to the technical field of system bag equipment, aims at solving the unstable problem of production quality of wrapping bag, and its technical scheme main points are: the utility model provides an unwinding mechanism of system bag machine, includes the frame, shelve and rotate and connect in the unwinding roller of frame front side, many rotate the drive arrangement who connects in the tensioning roller of frame ejection of compact side and be used for the drive unwinding roller, the tensioning roller top is provided with speedtransmitter for detect the transmission speed of prefabricated membrane, and send rotational speed signal, tacho sensor is connected with the controller, the controller is according to rotational speed signal control drive arrangement's drive speed. The utility model discloses a production quality of package bag is improved in the unwinding mechanism of system bag machine.

Description

Uncoiling mechanism of bag making machine

Technical Field

The utility model belongs to the technical field of the technique of system bag equipment and specifically relates to a mechanism is rolled up in unwinding of system bag machine is related to.

Background

With the development of society and the improvement of living standard, people put forward higher requirements on product packaging. Living and production articles closely related to people's life, industrial and agricultural production all need to be packaged, and the preparation of a packaging bag is an important ring.

The existing packaging bag preparation mostly adopts prefabricated films for preparation, and the preparation of the packaging bag is finished by erecting the preset cylindrical prefabricated films on an unwinding mechanism through transmission, opening, bottom sealing, cutting, filling and sealing; the unwinding mechanism of the existing bag making machine is mostly composed of a rack, an unwinding roller and a tension roller, the cylindrical prefabricated film is simply erected for rotation to realize transmission, and wrinkles often appear due to the fact that the tension degree of the prefabricated film between the unwinding roller and the tension roller is insufficient, or the tension degree is too large to cause the tearing condition of the prefabricated film, so that the production quality of packaging bags is influenced.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide an unwinding mechanism of system bag machine to improve the production quality of wrapping bag.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an unwinding mechanism of system bag machine, includes the frame, shelve and rotate and connect in the unwinding roller of frame front side, many rotate the drive arrangement who connects in the tensioning roller of frame ejection of compact side and be used for the drive unwinding roller, the tensioning roller top is provided with speedtransmitter for detect the transmission speed of prefabricated membrane, and send rotational speed signal, speedtransmitter is connected with the controller, the controller is according to rotational speed signal control drive arrangement's drive speed.

By adopting the technical scheme, the cylindrical prefabricated film is sleeved on the unwinding roller, the unwinding roller is driven by the driving device to convey the prefabricated film out, the prefabricated film is conveyed to the bag making machine after being tensioned by the tensioning roller, and the bag making machine also has the tension on the prefabricated film so as to pull the prefabricated film to the bag making machine, so that the speed sensor is arranged above the tensioning roller, and when the speed sensor detects that the conveying speed of the prefabricated film on the tensioning roller is higher than the driving speed of the driving device due to the tension of the bag making machine, the driving speed of the driving device is accelerated under the control of the controller in order to avoid the prefabricated film from being torn; when the speed sensor detects that the conveying speed of the prefabricated film on the tensioning roller is smaller than the driving speed of the driving device, the prefabricated film between the unwinding roller and the tensioning roller is loosened and easily folded, and the driving speed of the driving device is controlled to be slowed down by the controller, so that the tension degree of the prefabricated film is ensured, and the production quality of the packaging bag is improved.

The utility model discloses further set up to: the discharging side of the rack is fixed with a sliding rod, the speed sensor is connected to the sliding rod in a sliding mode through a sliding block, and the sliding block is in threaded connection with a positioning bolt.

Through adopting above-mentioned technical scheme, because the specification of prefabricated membrane differs, the width differs, for the conveying speed of more accurate detection prefabricated membrane, when prefabricated membrane width change, horizontal position is adjusted to speed sensor accessible slider to through positioning bolt fixed position, accommodation is big.

The utility model discloses further set up to: the tensioning roller is three, and three the line in tensioning roller terminal surface centre of a circle is inverted triangle-shaped, the tensioning roller gets into the side and is provided with level and smooth device.

Through adopting above-mentioned technical scheme, if the prefabricated membrane takes place fold or edge to turn over before getting into the tensioning roller and turns over, then can influence the quality of wrapping bag, get into the side at the tensioning roller and set up level and smooth device to the prefabricated membrane that gets into the tensioning roller levels, with the production quality of further improvement wrapping bag.

The utility model discloses further set up to: the flattening device comprises a fixed rod fixed on the frame, a flattening block and two connecting plates which are respectively connected with two ends of the flattening block in a rotating mode, and the two connecting plates are connected with the fixed rod in a rotating mode.

Through adopting above-mentioned technical scheme, in the course of the work, the leveling block is because self gravity acts on the prefabricated membrane surface before the tensioning roller, and when prefabricated membrane process leveling block, the folding and rolling over of prefabricated membrane edge etc. can be got rid of by the leveling block, has consequently improved the production quality of wrapping bag.

The utility model discloses further set up to: the unwinding roller is connected with a limiting block in a sliding mode, the limiting block is connected with a limiting bolt in a threaded mode, and the limiting bolt penetrates through the limiting block and abuts against the outer wall surface of the unwinding roller.

Through adopting above-mentioned technical scheme, because the width of the different specifications of prefabricated membrane is all inconsistent, so the width of the section of thick bamboo of convoluteing the prefabricated membrane is also inconsistent, after the prefabricated membrane cover of tube-shape was established on rolling back the roller, a stopper was established at its both ends cover respectively, after the stopper was spacing with the prefabricated membrane both ends of tube-shape, fixed the stopper through spacing bolt to avoid the prefabricated membrane of tube-shape to take place lateral shifting in process of production, further improved the production quality of wrapping bag.

The utility model discloses further set up to: the improved unwinding device is characterized in that grooves matched with the unwinding rollers are formed in two sides of the rack, the depth of each groove is larger than or equal to the diameter of each unwinding roller, and a cover plate is rotatably connected to one side of each groove.

Through adopting above-mentioned technical scheme, rotate and remove the apron on the recess of both sides, with the prefabricated membrane cover of tube-shape establish back on the unwinding roller, will unwind roller both ends and place respectively in the recess to rotate the apron and seal the recess, thereby the unwinding roller rotates and connects in the frame, makes unwinding roller material loading and unloading more convenient.

The utility model discloses further set up to: an annular groove is formed in the outer wall surface of one end of the unwinding roller, and a positioning block matched with the annular groove is fixed on the rack.

By adopting the technical scheme, in the production process, the positioning block transversely positions the unwinding roller through the annular groove, so that the influence on the production quality of the packaging bag caused by the transverse displacement of the unwinding roller is avoided.

The utility model discloses further set up to: the driving device comprises a motor, a driving gear connected to the motor and a synchronizing gear fixed at the other end of the unwinding roller, wherein the driving gear is meshed with the synchronizing gear.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the speed sensor detects that the conveying speed of the prefabricated film on the tensioning roller is greater than or less than the driving speed of the driving device due to the pulling force of the bag making machine, in order to avoid the prefabricated film from being torn or wrinkled, the controller controls the driving speed of the driving device to be increased or decreased, so that the tensioning degree of the prefabricated film is ensured, and the production quality of the packaging bag is improved;

2. a flattening device is arranged at the entrance side of the tensioning roller to flatten the prefabricated film entering the tensioning roller so as to further improve the production quality of the packaging bag;

3. after the limiting blocks limit the two ends of the tubular prefabricated film, the limiting blocks are fixed through the limiting bolts, so that the tubular prefabricated film is prevented from transversely deviating in the production process, and the production quality of the packaging bag is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partially enlarged schematic view at a in fig. 1.

In the figure, 1, a frame; 2. unwinding the roller; 3. a tension roller; 4. a speed sensor; 5. a controller; 6. a slide bar; 7. a slider; 8. positioning the bolt; 9. a leveling device; 91. fixing the rod; 92. flattening the whole block; 93. a connecting plate; 10. a limiting block; 11. a limit bolt; 12. a groove; 13. a cover plate; 14. an annular groove; 15. positioning blocks; 16. a motor; 17. a drive gear; 18. and (5) synchronizing gears.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an unwinding mechanism of system bag machine, including frame 1, shelve and rotate and connect in the unwinding roller 2 of frame 1 front side, many rotate the drive arrangement who connects in the tensioning roller 3 of frame 1 discharge side and be used for driving

unwinding roller

2, 3 tops of tensioning roller are provided with speedtransmitter 4 for detect the transmission speed of prefabricated membrane, and send rotational speed signal, speedtransmitter 4 is connected with controller 5, controller 5 is according to rotational speed signal control drive arrangement's drive speed. The tubular prefabricated film is sleeved on the unwinding roller 2, the unwinding roller 2 is driven by the driving device to convey the prefabricated film out, the prefabricated film is conveyed to the bag making machine after being tensioned by the tensioning roller 3, and the bag making machine also has tension on the prefabricated film so as to pull the prefabricated film to the bag making machine, so that the speed sensor 4 is arranged above the tensioning roller 3, and when the speed sensor 4 detects that the conveying speed of the prefabricated film on the side of the tensioning roller 3 is higher than the driving speed of the driving device due to the tension of the bag making machine, the controller 5 controls and accelerates the driving speed of the driving device in order to avoid the prefabricated film from being torn; when the speed sensor 4 detects that the conveying speed of the prefabricated film on the tensioning roller 3 side is smaller than the driving speed of the driving device, the prefabricated film between the unwinding roller 2 and the tensioning roller 3 is loosened and easy to wrinkle, and the controller 5 controls the driving speed of the driving device to be slowed down, so that the tension degree of the prefabricated film is ensured, and the production quality of the packaging bag is improved.

Because the prefabricated films are different in specification and width, in order to more accurately detect the conveying speed of the prefabricated films, referring to fig. 1, a sliding rod 6 is fixed on the discharge side of a rack 1, a speed sensor 4 is connected to the sliding rod 6 in a sliding manner through a sliding block 7, and the sliding block 7 is in threaded connection with a positioning bolt 8; when the width of the prefabricated film is changed, the speed sensor 4 can adjust the transverse position through the sliding block 7 and fix the position through the positioning bolt 8, and the application range is wide.

In this embodiment, referring to fig. 1, the tensioning roller 3 is three, and the line of the 3 terminal surface centre of a circle of three tensioning rollers is inverted triangle-shaped, if prefabricated membrane takes place fold or edge book before getting into tensioning roller 3, then can influence the quality of wrapping bag, is provided with leveling device 9 in the side of getting into at tensioning roller 3 to level and smooth the prefabricated membrane that gets into tensioning roller 3, with the production quality of further improvement wrapping bag.

Wherein, referring to fig. 1, leveling device 9 includes a fixing rod 91 fixed on frame 1, a leveling block 92 and two connecting plates 93 respectively connected to two ends of leveling block 92 in a rotating manner, two connecting plates 93 are all connected to fixing rod 91 in a rotating manner, the bottom of leveling block 92 is provided with an inclined surface towards unwinding roller 2, and the inclined surface inclines downwards so as to facilitate the passing of the prefabricated film. In the working process, the leveling block 92 acts on the surface of the prefabricated film before the tension roller 3 due to self gravity, and when the prefabricated film passes through the leveling block 92, the edge of the prefabricated film is turned over and the like and can be removed by the leveling block 92, so that the production quality of the packaging bag is improved.

Because the width of the different specifications of prefabricated membrane is all inconsistent, so the width of the section of thick bamboo of convoluteing prefabricated membrane is also inconsistent, refer to fig. 1, slide at unwinding roller 2 and be connected with stopper 10, stopper 10 threaded connection has spacing bolt 11, and spacing bolt 11 passes stopper 10 and butt in unwinding roller 2 outer wall. After the prefabricated membrane cover of tube-shape was established on unwinding roller 2, establish a stopper 10 at its both ends cover respectively, stopper 10 is after living tube-shape prefabricated membrane both ends are spacing, fixed stopper 10 through spacing bolt 11 to avoid the prefabricated membrane of tube-shape to take place the lateral shifting in process of production, further improved the production quality of wrapping bag.

In this embodiment, referring to fig. 1, grooves 12 matched with the unwinding roller 2 are formed in two sides of the frame 1, the depth of each groove 12 is larger than or equal to the diameter of the unwinding roller 2, and a cover plate 13 is rotatably connected to one side of each groove 12. In the operation process, the cover plates 13 on the grooves 12 on the two sides are moved away in a rotating mode, after the cylindrical prefabricated film sleeves are sleeved on the unwinding roller 2, the two ends of the unwinding roller 2 are placed in the grooves 12 respectively, the cover plates 13 are rotated to seal the grooves 12, and therefore the unwinding roller 2 is rotatably connected to the rack 1, and feeding and discharging of the unwinding roller 2 are more convenient.

In addition, referring to fig. 2, an annular groove 14 is formed in the outer wall surface of one end of the unwinding roller 2, and a positioning block 15 matched with the annular groove 14 is fixed on the frame 1; in the production process, the positioning block 15 transversely positions the unwinding roller 2 through the annular groove 14, so that the influence on the production quality of the packaging bag caused by the transverse displacement of the unwinding roller 2 is avoided.

Referring to fig. 1, the driving device of the present embodiment includes a motor 16, a driving gear 17 connected to the motor 16, and a synchronizing gear 18 fixed to the other end of the unwinding roller 2, wherein the driving gear 17 is engaged with the synchronizing gear 18.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. An unwinding mechanism of a bag making machine, characterized in that: including frame (1), shelve and rotate and connect in unwinding roller (2), the many rotations of frame (1) front side connect in tensioning roller (3) of frame (1) discharge side and be used for the drive to unwind the drive arrangement of winding roller (2), tensioning roller (3) top is provided with speedtransmitter (4) for detect the transmission speed of prefabricated membrane, and send rotational speed signal, speedtransmitter (4) are connected with controller (5), controller (5) are according to rotational speed signal control drive arrangement's drive speed.

2. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: frame (1) discharge side is fixed with slide bar (6), speedtransmitter (4) slide through being provided with slider (7) and connect in slide bar (6), slider (7) threaded connection has positioning bolt (8).

3. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: tensioning roller (3) are three, and three the line in tensioning roller (3) terminal surface centre of a circle is inverted triangle-shaped, tensioning roller (3) get into the side and are provided with level and smooth device (9).

4. The unwinding mechanism of a bag machine as claimed in claim 3, wherein: the leveling device (9) comprises a fixing rod (91) fixed on the rack (1), a leveling block (92) and two connecting plates (93) which are respectively connected to two ends of the leveling block (92) in a rotating mode, and the two connecting plates (93) are connected to the fixing rod (91) in a rotating mode.

5. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: move back winding up roller (2) and slide and be connected with stopper (10), stopper (10) threaded connection has spacing bolt (11), spacing bolt (11) pass stopper (10) and butt in moving back winding up roller (2) outer wall.

6. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: frame (1) both sides seted up with move back winding up roller (2) assorted recess (12), the degree of depth of recess (12) is more than or equal to the diameter that moves back winding up roller (2), recess (12) one side is rotated and is connected with apron (13).

7. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: an annular groove (14) is formed in the outer wall face of one end of the unwinding roller (2), and a positioning block (15) matched with the annular groove (14) is fixed on the rack (1).

8. The unwinding mechanism of a bag machine as claimed in claim 1, wherein: the driving device comprises a motor (16), a driving gear (17) connected to the motor (16) and a synchronizing gear (18) fixed to the other end of the unwinding roller (2), wherein the driving gear (17) is meshed with the synchronizing gear (18).