CN218368732U - Automatic deviation rectifying cutting device and packaging machine - Google Patents

Abstract

The utility model discloses an automatic cutting device and packagine machine rectify, this automatic cutting device that rectifies includes: the cutting mechanism comprises a support and a hobbing cutter assembly which is rotatably arranged on the support, the hobbing cutter assembly comprises a first cutting roller and a second cutting roller matched with the first cutting roller, and at least one of the first cutting roller and the second cutting roller is a hobbing cutter roller; the detection mechanism is arranged at the downstream of the cutting mechanism along the transportation direction of the packaging film and is suitable for detecting the width of a cursor on the longitudinal seal of the packaging bag; the driving mechanism is connected with the first cutting roller and the second cutting roller and is suitable for adjusting the rotation speed of the first cutting roller and the second cutting roller so as to adjust the relative position of the cutting position on the packaging film to be cut; the controller, the detection mechanism and the driving mechanism are electrically connected with the controller. The utility model discloses but cursor width on the vertical seal of automatic identification adjustment wrapping bag, compare in manual operation, can improve the detection precision to qualified wrapping bag and unqualified wrapping bag.

Description

Automatic deviation rectifying cutting device and packaging machine

Technical Field

The utility model relates to a bulk material's packing technical field, concretely relates to automatic cutting device and packagine machine rectify.

Background

In the process of packaging bulk materials by using a packaging machine, a packaging film is usually placed down by a film roll mechanism, and then the incoming packaging film is folded and formed by a former; then, longitudinally hot-melting and sealing the folded packaging film through a longitudinal sealing mechanism, so that a plurality of sequentially connected packaging bags with feed openings are formed, and hot-melting sealing strips are formed between the filling cavities of two adjacent packaging bags; after the filling cavity of the packaging bag is filled with materials by the blanking mechanism, the transverse sealing mechanism is used for carrying out hot melting sealing on the blanking opening so as to form transverse sealing; and finally, longitudinally cutting the longitudinal hot-melt sealing strip through a cutting mechanism, thereby obtaining an independent single-bag packaging finished product.

The package film is usually provided with a cursor, and when the package film is longitudinally hot-melt sealed by using the longitudinal sealing mechanism, the longitudinal sealing device of the longitudinal sealing mechanism is usually required to be aligned with the cursor, so that the cursor is located at a position where the longitudinal hot-melt sealing strip is close to a central line, that is, the central line of the longitudinal hot-melt sealing strip is aligned with the central line of the cursor on the package film. Therefore, after the longitudinal hot-melt sealing strips are longitudinally cut by the cutting mechanism in principle, the longitudinal sealing widths of the two sides of the formed packaging bag finished product are consistent, and the widths of the cursors of the two sides are consistent.

However, the cutting mechanism is often offset relative to the longitudinal hot melt seal strip to be cut, resulting in unequal widths of the longitudinal seals on both sides of the finished package being cut and unequal widths of the cursors on both sides. In the prior art, when the deviation of the cutting mechanism is corrected, an operator is often required to be configured on a station, and the operator can judge whether the cutting mechanism deviates by observing whether the widths of cursors on two sides of a finished packaging bag product are consistent or not through naked eyes; and when the cursor widths of the two sides of the finished packaging bag product are not consistent, manually adjusting the position of the cutting mechanism relative to the base of the packaging machine by an operator to correct the position of the cutting mechanism, then observing the cursor widths of the two sides of the finished packaging bag product to judge whether the offset of the cutting mechanism is eliminated, and repeating the operation until the offset of the cutting mechanism is eliminated.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in solving cutting mechanism's rectifying and rectifying through operative employee's visual observation and manual regulation and rectifies, and visual observation and manual regulation inaccuracy lead to the unqualified problem of wrapping bag finished product, for this reason among the prior art, the utility model provides an automatic cutting device and packagine machine rectify.

In a first aspect, the utility model provides an automatic cutting device rectifies, this automatic cutting device rectifies includes:

the cutting mechanism comprises a support and a hobbing cutter assembly which is rotatably arranged on the support, the hobbing cutter assembly comprises a first cutting roller and a second cutting roller matched with the first cutting roller, at least one of the first cutting roller and the second cutting roller is a hobbing cutter roller, and the hobbing cutter assembly is suitable for oppositely rolling the first cutting roller and the second cutting roller and forming a cutting position to cut a packaging film to be cut so as to form an independent packaging bag;

the detection mechanism is arranged at the downstream of the cutting mechanism along the transportation direction of the packaging film and is suitable for detecting the width of a cursor on the longitudinal seal of the packaging bag;

the driving mechanism is connected with the first cutting roller and the second cutting roller and is suitable for adjusting the rotation rate of the first cutting roller and the second cutting roller so as to adjust the relative position of the cutting position on the packaging film to be cut;

and the detection mechanism and the driving mechanism are electrically connected with the controller.

Optionally, the first cutting roller is a hobbing cutter roller, and the hobbing cutter roller includes:

the two ends of the first main shaft are rotatably arranged on the bracket;

the cutter roll base member, the cover is established and is fixed on the first main shaft, follows the axial of first main shaft, extend on the cutter roll base member outer wall and be provided with the cutter, first main shaft accessible drives the cutter roll base member and rotates to drive the cutter on the cutter roll base member with the cooperation cutting of second cutter roll wait to cut the packaging film.

Optionally, the cutters are arranged in multiple groups, and the multiple groups of cutters are arranged on the outer wall of the cutter roller base body along the circumferential direction of the first main shaft.

Optionally, the second cutting roller is a smooth roller, and the smooth roller includes:

the second main shaft is arranged in parallel with the first main shaft, and two ends of the second main shaft are rotatably arranged on the bracket;

and the smooth roll main body is sleeved and fixed on the second main shaft and is suitable for being matched with a cutter on the cutter roll base body.

Optionally, the drive mechanism comprises:

the controller and the second main shaft of the second cutting roller are connected with the power part, and the power part is suitable for driving the second main shaft to rotate and adjusting the rotating speed of the second main shaft;

the gear transmission assembly comprises a driving wheel and a driven wheel which are meshed with each other, wherein the driving wheel is installed on the second main shaft, the driven wheel is installed on the first main shaft, and the second cutting roller can drive the first cutting roller to rotate along with the second cutting roller through the gear transmission assembly.

Optionally, the bracket is of a U-shaped structure, one end of each of the first cutting roller and the second cutting roller is rotatably arranged on one side of the U-shaped bracket, and the other end of each of the first cutting roller and the second cutting roller is rotatably arranged on the other side of the U-shaped bracket; the cutting mechanism further comprises:

the adjusting mechanism is arranged on the U-shaped support, the first cutting roller is movably connected with the adjusting mechanism, and the adjusting mechanism is suitable for driving the first cutting roller to move close to or away from the second cutting roller.

Optionally, the adjustment mechanism includes two sets of adjusting parts, two sets of adjusting parts with two tip one-to-one of first roller of cutting are connected, two sets of adjusting parts all include:

the sliding block is limited on one side edge of the U-shaped bracket in a sliding mode, and the end part of the first cutting roller is rotatably arranged on the sliding block;

and the driving assembly is connected with the sliding block and is suitable for driving the sliding block to slide along the side edge of the U-shaped bracket so as to drive the first cutting roller to move towards the direction close to or far away from the second cutting roller.

Optionally, the drive assembly comprises:

the driving cylinder is arranged on the bottom edge of the U-shaped support;

and one end of the cylinder telescopic rod is connected with the driving cylinder, the other end of the cylinder telescopic rod penetrates through the bottom edge of the U-shaped support and is connected with the sliding block, and the cylinder telescopic rod is suitable for performing telescopic motion under the driving of the driving cylinder so as to drive the sliding block to slide along the side edge of the U-shaped support.

Optionally, two sides of the U-shaped bracket are provided with avoidance grooves for the telescopic rod of the cylinder to move in a telescopic manner.

Optionally, the detection mechanism is a visual sensor.

In a second aspect, the utility model provides a packaging machine, including above-mentioned automatic deviation rectification cutting device to and the frame, the automatic deviation rectification cutting device installation sets up in the frame, still include: along the conveying direction of the packaging film, a film rolling mechanism, a former, a longitudinal sealing mechanism, a blanking mechanism and a transverse sealing mechanism are sequentially arranged on the rack.

The utility model discloses technical scheme has following advantage:

1. the utility model discloses in, the independent wrapping bag that obtains is cut through shutdown mechanism in the transportation, detection mechanism detectable reaches the width of cursor on vertically sealing of independent wrapping bag, and feed back the detected value to the controller, when the detected value surpassed preset critical range, when detecting the defective work promptly, the controller then controls actuating mechanism and adjusts the rotation rate that first roller and second cut the roller, thereby adjust the relative position of cutting the position on waiting to cut the packaging film, and then can adjust the independent wrapping bag on vertically seal and the width of cursor on it.

The automatic deviation rectifying and cutting device in the embodiment can automatically identify the width of the cursor on the longitudinal seal of the packaging bag, automatically adjust the width of the longitudinal seal and the width of the cursor without manual observation and adjustment, not only can improve the detection precision of qualified packaging bags and unqualified packaging bags to remove unqualified packaging bags, prevent unqualified products from being mixed into qualified products and flowing into the market, but also can improve the rotating speed adjusting precision of a driving mechanism to the first cutting roller and the second cutting roller; meanwhile, compared with manual operation, the detection mechanism and the driving mechanism in the embodiment are electrically connected with the controller, so that feedback and control response are rapid, if the detection mechanism detects an unqualified packaging bag, the detection mechanism can feed back the unqualified packaging bag to the controller in time, and the controller can control the driving mechanism to adjust the rotation rates of the first cutting roller and the second cutting roller in time; in addition, this embodiment can reduce the human input cost.

2. The utility model discloses in, gear drive assembly can transmit the power that power unit provided for first main shaft and second main shaft, thereby it cuts the roller rotation to drive first roller and the second of cutting, and adjust first roller and the second of cutting and cut the roller corotation under power unit's drive, reversal or stall, with the rotation rate that the roller was cut to first roller and the second of realizing adjusting, thereby adjust the relative position of cutting the position on waiting to cut the wrapping film, and then can adjust the independent wrapping bag on vertically seal and the width of cursor on it.

3. The utility model discloses in through setting up the adjustable first roller of cutting of adjustment mechanism and the distance between the second roller of cutting, extend the roll that this shutdown mechanism is suitable for different specification wrapping bags and cut.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a stand-alone package;

fig. 2 is a front view of the packaging machine;

FIG. 3 is a front view of the mounting structure of the cutting mechanism and the driving mechanism;

FIG. 4 is a side view of a mounting structure of the cutting mechanism and the driving mechanism;

FIG. 5 is an isometric view of the mounting structure of the severing mechanism and gear assembly;

FIG. 6 is a front view of the mounting structure of the cutting mechanism and gear assembly;

FIG. 7 is a top view of the mounting structure of the cutting mechanism and the gear assembly;

fig. 8 isbase:Sub>A sectional view atbase:Sub>A sectionbase:Sub>A-base:Sub>A in fig. 6.

Description of reference numerals:

100. a packaging film in conveyance; 200. a separate packaging bag; 201. longitudinally sealing; 202. transversely sealing; 203. a cursor;

300. a frame; 400. a film winding mechanism; 500. a former; 600. a longitudinal sealing mechanism; 700. a blanking mechanism; 800. a transverse sealing mechanism;

1. a cutting mechanism;

11. a support; 111. an avoidance groove;

12. a first cutting roller; 121. a first main shaft; 122. a knife roll base body; 123. a cutter;

13. a second cutting roller; 131. a second main shaft; 132. a smooth roll body;

14. an adjustment mechanism; 141. an adjustment assembly; 1411. a slider; 1412. a drive assembly; 14121. a driving cylinder; 14122. a cylinder telescopic rod;

2. a detection mechanism;

3. a drive mechanism; 31. a power component; 32. a gear drive assembly; 321. a driving wheel; 322. a driven wheel.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 8, it should be noted that B1 and B2 in fig. 1 indicate the width of the cursor on the longitudinal seals on the two sides of the packaging bag, and the embodiment of the present invention provides an automatic deviation-rectifying cutting device, which includes a cutting mechanism 1, a detection mechanism 2, a driving mechanism 3 and a controller, specifically, the cutting mechanism 1 includes a support 11, and a rolling cutter assembly rotatably disposed on the support 11, the rolling cutter assembly includes a first cutting roller 12 and a second cutting roller 13 matched with the first cutting roller 12, at least one of the first cutting roller 12 and the second cutting roller 13 is a rolling cutter roller, and the rolling cutter assembly is adapted to roll the first cutting roller 12 and the second cutting roller 13 in opposite directions and form a cutting position to cut the packaging film to be cut to form an independent packaging bag 200; the detection mechanism 2 is arranged at the downstream of the cutting mechanism 1 along the transport direction of the packaging film, and the detection mechanism 2 is arranged at the left side position of the cutting mechanism 1 under the view angle shown in FIG. 2 and is suitable for detecting the width of the cursor 203 on the longitudinal seal 201 of the packaging bag; the first cutting roller 12 and the second cutting roller 13 are both connected with the driving mechanism 3, and the driving mechanism 3 is suitable for adjusting the rotation speed of the first cutting roller 12 and the second cutting roller 13 so as to adjust the relative position of the cutting position on the packaging film to be cut; the detection mechanism 2 and the driving mechanism 3 are both electrically connected with the controller.

The embodiment of the utility model provides an in, the independent wrapping bag 200 that obtains is cut through shutdown mechanism 1 in the transportation, detection mechanism 2 detectable reaches independent wrapping bag 200 vertically seals the width of cursor 203 on 201, and feed back the detected value to the controller, when the detected value surpassed preset critical range, when detecting the defective work promptly, the controller then controls actuating mechanism 3 and adjusts the rotation rate that first roller 12 and second cut roller 13, thereby adjust the relative position of cutting position on waiting to cut the packaging film, and then can adjust the independent wrapping bag 200 on vertically seal 201 and the width of cursor 203 on it.

The automatic deviation rectifying and cutting device in the embodiment can automatically identify the width of the cursor 203 on the longitudinal seal 201 of the packaging bag, automatically adjust the widths of the longitudinal seal 201 and the cursor 203, does not need manual observation and adjustment, can improve the detection precision of qualified packaging bags and unqualified packaging bags to remove unqualified packaging bags, prevent unqualified products from being mixed into qualified products and flowing into the market, and can improve the rotating speed adjusting precision of the driving mechanism 3 on the first cutting roller 12 and the second cutting roller 13; meanwhile, compared with manual operation, the detection mechanism 2 and the driving mechanism 3 in the embodiment are electrically connected with the controller, so that feedback and control response are rapid, if the detection mechanism 2 detects an unqualified packaging bag and then can feed back the unqualified packaging bag to the controller, the controller can control the driving mechanism 3 to adjust the rotation rates of the first cutting roller 12 and the second cutting roller 13 in time; in addition, this embodiment can reduce the human input cost.

Alternatively, as shown in fig. 1, the cursor 203 is a black bar. Of course, the shape and color of the cursor 203 can be adjusted according to actual needs, which is not limited in this embodiment.

Optionally, the first cutting roller 12 is a hobbing cutter roller, the hobbing cutter roller comprises a first main shaft 121 and a cutter roller base body 122, and two ends of the first main shaft 121 are rotatably arranged on the bracket 11; the knife roll base body 122 is sleeved and fixed on the first main shaft 121, a cutter 123 extends from the outer wall of the knife roll base body 122 along the axial direction of the first main shaft 121, and the first main shaft 121 can drive the knife roll base body 122 to rotate so as to drive the cutter 123 on the knife roll base body 122 to be matched with the second cutting roll 13 to cut the packaging film to be cut. Optionally, the plurality of cutting knives 123 are arranged in a plurality of groups, and the plurality of groups of cutting knives 123 are arranged on the outer wall of the knife roller base body 122 along the circumferential direction of the first main shaft 121. Preferably, as shown in fig. 5, the cutting blades 123 are provided in four sets, and four cutting operations can be performed for each rotation of the first cutting roller 12 and the second cutting roller 13. Of course, the number of the cutters 123 may be adjusted according to actual requirements, and this embodiment does not limit this.

Optionally, as an embodiment, the second cutting roller 13 is also a rolling cutter roller, and the cutting cutters 123 on the second cutting roller 13 are arranged in one-to-one correspondence with the cutting cutters 123 of the second cutting roller 13 and cooperate to cut the packaging film to be cut. Optionally, as another embodiment, the second cutting roller 13 is a smooth roller, the smooth roller includes a second main shaft 131 and a smooth roller main body 132, the second main shaft 131 is arranged in parallel with the first main shaft 121, and two ends of the second main shaft 131 are rotatably arranged on the bracket 11; the smooth roll main body 132 is sleeved and fixed on the second main shaft 131 and is suitable for matching with the cutter 123 on the cutter roll base 122. The embodiment of the utility model provides an in, when waiting to cut the packaging film and transporting to first roller 12 and the second of cutting between the roller 13, first roller 12 and the second of cutting are cut roller 13 and are rolled through the cooperation and can be treated cutting the packaging film and cut.

Optionally, the driving mechanism 3 comprises a power unit 31 and a gear assembly 32, the controller and the second main shaft 131 of the second cutting roller 13 are both connected with the power unit 31, and the power unit 31 is adapted to drive the second main shaft 131 to rotate and adjust the rotation speed of the second main shaft 131; the gear transmission assembly 32 comprises a driving wheel 321 and a driven wheel 322 which are engaged with each other, wherein the driving wheel 321 is mounted on the second main shaft 131, the driven wheel 322 is mounted on the first main shaft 121, and the second cutting roller 13 can drive the first cutting roller 12 to rotate together with the second cutting roller 13 through the gear transmission assembly 32.

So set up, gear drive assembly 32 can transmit the power that power part 31 provided to first main shaft 121 and second main shaft 131, thereby drive first cutting roller 12 and second cutting roller 13 and rotate, and adjust first cutting roller 12 and second cutting roller 13 corotation under the drive of power part 31 and accelerate, corotation speed reduction or reversal acceleration, and stall, in order to realize adjusting the rate of rotation of first cutting roller 12 and second cutting roller 13, thereby adjust the relative position of cutting position on waiting to cut the wrapping film, and then can adjust the width of vertical seal 201 and cursor 203 on it on independent wrapping bag 200.

Alternatively, the power component 31 is an electric motor; preferably, the power member 31 is a servo motor. Optionally, a speed reducer is provided between the motor and the gear assembly 32.

Alternatively, as shown in fig. 5, the bracket 11 is of a U-shaped structure, one end of each of the first cutting roller 12 and the second cutting roller 13 is rotatably disposed on one side of the U-shaped bracket 11, and the other end of each of the first cutting roller 12 and the second cutting roller 13 is rotatably disposed on the other side of the U-shaped bracket 11; the cutting mechanism 1 further comprises an adjusting mechanism 14, the adjusting mechanism 14 is arranged on the U-shaped support 11, the first cutting roller 12 is movably connected with the adjusting mechanism 14, and the adjusting mechanism 14 is suitable for driving the first cutting roller 12 to move close to or away from the second cutting roller 13. The distance between the first cutting roller 12 and the second cutting roller 13 can be adjusted by arranging the adjusting mechanism 14, and the cutting mechanism 1 is expanded to be suitable for rolling cutting of packaging bags with different specifications.

Optionally, as shown in fig. 5, the adjusting mechanism 14 includes two sets of adjusting assemblies 141 arranged along the left-right direction, the two sets of adjusting assemblies 141 are connected with two end portions of the first cutting roller 12 in a one-to-one correspondence manner, each of the two sets of adjusting assemblies 141 includes a sliding block 1411 and a driving assembly 1412, specifically, the sliding block 1411 is slidably limited on one side of the U-shaped bracket 11, and an end portion of the first cutting roller 12 is rotatably arranged on the sliding block 1411; the driving assembly 1412 is connected to the sliding block 1411 and is adapted to drive the sliding block 1411 to slide along the side of the U-shaped bracket 11 so as to drive the first cutting roller 12 to move toward or away from the second cutting roller 13.

Optionally, as shown in fig. 5, the driving assembly 1412 comprises a driving cylinder 14121 and a cylinder telescopic rod 14122, and a driving cylinder 14121 is installed on the bottom edge of the U-shaped bracket 11; one end of an air cylinder telescopic rod 14122 is connected with the driving air cylinder 14121, the other end of the air cylinder telescopic rod 5363 penetrates through the bottom edge of the U-shaped support 11 to be connected with the sliding block 1411, and the air cylinder telescopic rod 14122 is suitable for being driven by the driving air cylinder 14121 to conduct telescopic movement so as to drive the sliding block 1411 to slide along the side edge of the U-shaped support 11. Optionally, an avoidance groove 111 for the telescopic motion of the cylinder telescopic rod 14122 is provided on two sides of the U-shaped bracket 11.

Optionally, the detection mechanism 2 is a visual sensor. Preferably, the detection means 2 comprise a camera.

Optionally, the controller controls the principle of the deviation correction as follows: the detection mechanism 2 detects the widths of the cursor 203 on the longitudinal seal 201 on the same side of the N independent packaging bags 200 at each T time interval, can detect the width B1 of the cursor 203 on the longitudinal seal 201 on the left side of the packaging bags, and can also detect the width B2 of the cursor 203 on the longitudinal seal 201 on the left side of the packaging bags, the detection mechanism 2 feeds the N detection values back to the controller together, the controller calculates the average value of the N detection values, and if individual abrupt data occurs in the T period, unqualified products can be directly and automatically removed to avoid error adjustment; setting a preset threshold value of width deviation of a cursor 203 on one side of an independent packaging bag 200 as W, setting an adjustable deviation cutting adjusting value as W P when the detected width deviation is larger than W, namely, the detected width deviation is unqualified, and controlling a driving mechanism 3 to adjust the rotating speed of a first cutting roller 12 and a second cutting roller 13 by a controller when the average deviation is larger than W P, so that the relative position of a cutting position on a packaging film to be cut is adjusted, and further the width of a longitudinal seal 201 on the independent packaging bag 200 and the width of the cursor 203 on the independent packaging bag can be adjusted; after the correction is finished, the detection mechanism 2 continues to detect and feed back to the controller after delaying the preset time interval, and if the data in the continuous n circulation periods are unqualified, the machine is controlled to stop for maintenance. Alternatively, T =0.4s, w =2.5mm, p =60%, n =5; of course, T, W, P and n may be set according to actual needs, which is not limited by the embodiment of the present invention.

Example 2

As shown in fig. 1 to 8, the utility model provides a packaging machine, this packaging machine include above-mentioned automatic deviation rectification cutting device to and frame 300, the installation of automatic deviation rectification cutting device sets up on the frame 300, still include: the film rolling mechanism 400, the former 500, the longitudinal sealing mechanism 600, the blanking mechanism 700 and the transverse sealing mechanism 800 are sequentially arranged on the frame 300 along the conveying direction of the packaging film.

The beneficial effect that packagine machine in this embodiment can reach includes the beneficial effect that automatic deviation rectification cutting device can reach in embodiment 1, and this embodiment is no longer repeated here.

Optionally, the longitudinal sealing mechanism 600 and the transverse sealing mechanism 800 both adopt a hot melting sealing mode, and the hot melting temperature is controlled to be more than 150 °.

Optionally, the working process of the packaging machine in this embodiment is as follows:

(1) the film roll mechanism 400 discharges the wound packaging film, and the packaging film 100 in conveying passes through a plurality of groups of carrier rollers, is conveyed to the former 500, and is bent and folded into a packaging bag shape by the former 500;

(2) the folded packaging film is continuously conveyed to the longitudinal sealing mechanism 600, the longitudinal sealing mechanism 600 longitudinally seals the packaging film, and meanwhile, the blanking mechanism 700 extends into the packaging bag from a packaging bag blanking port to perform blanking so as to fill materials;

(3) the packaging film which is longitudinally sealed and filled with materials is continuously transported to a transverse sealing mechanism 800, the transverse sealing mechanism 800 carries out transverse sealing on the feed opening to form a transverse seal 202, and at the moment, the packaging film forms a plurality of sequentially connected packaging bags;

(4) cutting the packaging bag into single independent packaging bags 200 by a cutting mechanism 1;

(5) in the continuous transportation process of a single independent packaging bag 200, the detection mechanism 2 detects the width of the cursor 203 on the longitudinal seal 201 on one side (left side or right side) of the packaging bag and feeds the detection value back to the controller, and when an unqualified product is detected, the controller controls the driving mechanism 3 to adjust the rotation rate of the first cutting roller 12 and the second cutting roller 13, so that the relative position of the cutting position on the packaging film to be cut is adjusted, and the width of the longitudinal seal 201 and the cursor 203 on the independent packaging bag 200 can be adjusted;

taking the detection of the width B2 of the right cursor 203 of the packaging bag by the detection mechanism 2 as an example: if the B2 is larger than the preset value and the deviation exceeds the preset deviation critical range, the controller controls the driving mechanism 3 to adjust the first cutting roller 12 and the second cutting roller 13 to rotate forward in an accelerating mode, so that the cutter 123 is driven to move forward in an accelerating mode for a preset arc length, and the relative position of the cutting position on the packaging film to be cut moves leftwards for a preset distance to reduce the value of the B2; if the B2 is smaller than the preset value and the deviation exceeds the preset deviation critical range, the controller controls the driving mechanism 3 to adjust the first cutting roller 12 and the second cutting roller 13 to rotate forwards, backwards or forwards, so that the relative position of the cutting position on the packaging film to be cut moves rightwards for a preset distance to increase the value of the B2;

of course, the width B1 of the cursor 203 on the left side of the packaging bag may also be detected and adjusted, which is not described again;

(6) the detection mechanism 2 continues to detect the packaging bags with downstream seals, and if the detected packaging bags with downstream seals are still unqualified products, the controller continues to control and adjust the rotation rates of the first cutting roller 12 and the second cutting roller 13 until the detected packaging bags are qualified products.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (11)

1. An automatic deviation rectifying and cutting device is characterized by comprising:

the cutting mechanism (1) comprises a support (11) and a hobbing cutter assembly which is rotatably arranged on the support (11), wherein the hobbing cutter assembly comprises a first cutting roller (12) and a second cutting roller (13) matched with the first cutting roller (12), at least one of the first cutting roller (12) and the second cutting roller (13) is a hobbing cutter roller, and the hobbing cutter assembly is suitable for oppositely rolling the first cutting roller (12) and the second cutting roller (13) to form a cutting position so as to cut a packaging film to be cut to form an independent packaging bag (200);

the detection mechanism (2) is arranged at the downstream of the cutting mechanism (1) along the transportation direction of the packaging film, and is suitable for detecting the width of a cursor (203) on a longitudinal seal (201) of the packaging bag;

a drive mechanism (3), said first cutting roller (12) and said second cutting roller (13) being connected to said drive mechanism (3), said drive mechanism (3) being adapted to adjust the rate of rotation of said first cutting roller (12) and second cutting roller (13) to adjust the relative position of said cutting station on said film to be cut;

and the detection mechanism (2) and the driving mechanism (3) are electrically connected with the controller.

2. The automatic deviation rectifying cutting device according to claim 1, characterized in that said first cutting roller (12) is a hobbing cutter roller comprising:

a first main shaft (121) with both ends rotatably arranged on the bracket (11);

knife roll base member (122), the cover is established and is fixed on first main shaft (121), follows the axial of first main shaft (121), it is provided with cutter (123) to extend on knife roll base member (122) outer wall, and first main shaft (121) accessible drives knife roll base member (122) and rotates to cutter (123) on the drive knife roll base member (122) with second cutting roller (13) cooperation cutting treat the packaging film.

3. The automatic deviation-rectifying cutting device according to claim 2, wherein the plurality of sets of cutting knives (123) are arranged on the outer wall of the knife roller base body (122) along the circumferential direction of the first main shaft (121).

4. The automatic deviation rectifying cutting device according to claim 2, characterized in that said second cutting roller (13) is a smoothing roller comprising:

the second main shaft (131) is arranged in parallel with the first main shaft (121), and two ends of the second main shaft (131) are rotatably arranged on the bracket (11);

and the smooth roll main body (132) is sleeved and fixed on the second main shaft (131) and is suitable for being matched with the cutter (123) on the cutter roll base body (122).

5. The automatic deviation rectifying cutting device according to claim 4, characterized in that said driving mechanism (3) comprises:

the controller and the second main shaft (131) of the second cutting roller (13) are connected with the power part (31), and the power part (31) is suitable for driving the second main shaft (131) to rotate and adjusting the rotating speed of the second main shaft (131);

the gear transmission assembly (32), the gear transmission assembly (32) includes action wheel (321) and follow driving wheel (322) that mutually engage, and wherein, action wheel (321) install on second main shaft (131), follow driving wheel (322) install on first main shaft (121), second cutting roller (13) accessible gear transmission assembly (32) drive first cutting roller (12) rotate along with second cutting roller (13).

6. The automatic deviation-rectifying cutting device according to any one of claims 1-5, characterized in that the bracket (11) is of a U-shaped structure, one end of each of the first cutting roller (12) and the second cutting roller (13) is rotatably arranged on one side of the U-shaped bracket (11), and the other end of each of the first cutting roller (12) and the second cutting roller (13) is rotatably arranged on the other side of the U-shaped bracket (11); the cutting mechanism (1) further comprises:

the adjusting mechanism (14) is arranged on the U-shaped support (11), the first cutting roller (12) is movably connected with the adjusting mechanism (14), and the adjusting mechanism (14) is suitable for driving the first cutting roller (12) to move close to or away from the second cutting roller (13).

7. The automatic deviation rectifying cutting device according to claim 6, characterized in that said adjusting mechanism (14) comprises two groups of adjusting assemblies (141), said two groups of adjusting assemblies (141) are connected with two ends of said first cutting roller (12) in a one-to-one correspondence, said two groups of adjusting assemblies (141) each comprise:

the sliding block (1411) is limited on one side of the U-shaped bracket (11) in a sliding mode, and the end portion of the first cutting roller (12) is rotatably arranged on the sliding block (1411);

and the driving assembly (1412) is connected with the sliding block (1411) and is suitable for driving the sliding block (1411) to slide along the side edge of the U-shaped bracket (11) so as to drive the first cutting roller (12) to move towards or away from the second cutting roller (13).

8. The automated deviation cutting apparatus according to claim 7, wherein the drive assembly (1412) comprises:

the driving cylinder (14121) is arranged on the bottom edge of the U-shaped bracket (11);

one end of an air cylinder telescopic rod (14122) is connected with the driving air cylinder (14121), the other end of the air cylinder telescopic rod penetrates through the bottom edge of the U-shaped support (11) to be connected with the sliding block (1411), and the air cylinder telescopic rod (14122) is suitable for telescopic movement under the driving of the driving air cylinder (14121) so as to drive the sliding block (1411) to slide along the side edge of the U-shaped support (11).

9. The automatic deviation-rectifying cutting device according to claim 8, characterized in that the U-shaped bracket (11) is provided with avoidance slots (111) on two sides for the telescopic rod (14122) of the cylinder to move telescopically.

10. The automatic deviation-rectifying cutting device according to claim 1, characterized in that the detection mechanism (2) is a vision sensor.

11. A packaging machine, comprising the automatic deviation-rectifying cutting device according to any one of claims 1-10, and a frame (300), the automatic deviation-rectifying cutting device being mounted on the frame (300), further comprising: the film rolling mechanism (400), the former (500), the longitudinal sealing mechanism (600), the blanking mechanism (700) and the transverse sealing mechanism (800) are sequentially arranged on the rack (300) along the conveying direction of the packaging film.

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