CN211253221U

CN211253221U - Bag sewing machine

Info

Publication number: CN211253221U
Application number: CN201921945691.7U
Authority: CN
Inventors: 唐中权; 冯礼周; 熊乾; 李刚
Original assignee: Sichuan Wuliang Feed Co ltd
Current assignee: Sichuan Wuliang Feed Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-14
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a sack closer, including the frame of installing the sack closer aircraft nose and the conveyor of setting in sack closer head below, conveyor is last to be provided with fixing device, fixing device includes slide rail bracket, limiting plate and push rod mechanism, conveyor's one end is fixed with slide rail bracket, the last slide bar that is provided with of slide rail bracket, the slide bar is mutually perpendicular with conveyor's direction of transfer, the mobilizable cover of one end of limiting plate is established on the slide bar, push rod mechanism sets up the center at the limiting plate, push rod mechanism is used for changing the position of limiting plate, the realization is fixed the wrapping bag of equidimension not, avoided the wrapping bag to empty on conveyor to empty, cause unrestrained of fodder, and simultaneously, when having avoided the sack closer idle running, cause the suture to twine each other, the production efficiency is improved, avoided causing the damage to the sack.

Description

Bag sewing machine

Technical Field

The utility model relates to a wrapping bag seam package field specifically is a sack closer.

Background

The sack closer is a device which is made by sewing the mouths of plastic woven bags, paper-plastic composite bags, aluminum-coated paper bags and the like with threads, and mainly completes the work of splicing, seaming and the like of the bags or braided fabrics. The process is characterized by good sealing performance after sewing.

The bag sewing conveyor is most widely applied to feed bag sewing, in the feed industrial production, because a large number of packaging bags need to be sewn in a flowing manner, in order to improve the production efficiency, a bag sewing machine is combined with the conveyor, and the packaging bags are repeatedly conveyed to the bag sewing machine through the conveyor to be sewn, but the prior art has more problems in the bag sewing process of the feed packaging bags.

At present, chinese patent with publication number CN201520714070.3 discloses a firm bag sewing conveyor, which comprises a bag sewing machine head, a horizontal conveying belt is arranged below the bag sewing machine head, the conveying belt is supported by a support and is driven by rollers at two ends, a bottom frame is arranged at the middle position of the bottom of the support, a plurality of cross beams are fixed at the bottom of the support, two ends of each cross beam respectively extend out from two sides of the support, screw holes are formed in two ends of each cross beam, the bag sewing conveyor further comprises a plurality of fixing rods, each fixing rod is a screw rod matched with the screw holes in the cross beams, a connecting disc is fixed at the lower end of each fixing rod, each fixing rod penetrates through the screw holes and is fixed by nuts.

Although above-mentioned patent combines together conveyer and sack closer, the production efficiency is improved, but the conveyer can not be fixed the wrapping bag, lead to the wrapping bag to empty easily at the in-process of transportation, cause the fodder in the bag to spill, the influence still causes the waste of fodder when sewing up the wrapping bag at the back, the cost is increased, the wrapping bag is emptyd the back simultaneously, sack closer will be in idle running this moment, the suture twines on sack closer is overhead easily, when serious, will make subsequent sewing up can not go on, need the staff to manage the line, the work efficiency has seriously been reduced, therefore, current sack closer still has very big improvement space.

Meanwhile, the existing bag sewing machine has the advantage of being easy to disassemble, the sewing machine can be conveniently disassembled after finding out the tail of the thread, the bag can be repeatedly used, but the sewed packaging bag is still connected with the bag sewing machine through the thread, therefore, the thread breakage treatment is needed after the packaging bag is sewed, the manual thread breakage is usually adopted in the prior art, and the bag sewing efficiency can be influenced when the labor intensity of operators is increased in the thread breakage process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a sack closer, solved among the prior art conveyer can not carry out the shortcoming of fixing to the wrapping bag, improved production efficiency, avoided the wrapping bag to empty the unrestrained of causing the fodder to the cost has been increased. Meanwhile, an automatic thread cutting device is further arranged on the bag sewing machine, and the problems that the labor intensity of thread breakage of the bag sewing machine is high and the bag sewing efficiency is influenced in the prior art are solved.

The purpose of the utility model is realized through the following technical scheme: a bag sewing machine comprises a machine base provided with a bag sewing machine head and a conveying device arranged below the bag sewing machine head, wherein a sewing opening is formed in the bag sewing machine head, an automatic wire cutting device is arranged on one side of the sewing opening and used for cutting off a sewn suture on a packaging bag, the conveying direction of the conveying device is parallel to the movement direction of the bag sewing machine head during working, and a fixing device is arranged on the conveying device and used for fixing the packaging bag;

the fixing device comprises a slide rail support, a limiting plate and a push rod mechanism, one end of the conveying device is fixed with the slide rail support, a slide rod is arranged on the slide rail support, the slide rod is perpendicular to the conveying direction of the conveying device, a movable sleeve at one end of the limiting plate is arranged on the slide rod, the push rod mechanism is arranged at the center of the limiting plate, and the push rod mechanism is used for changing the position of the limiting plate to fix packaging bags with different sizes.

Further, the conveying device comprises a rack and a conveying belt arranged on the rack.

Further, push rod mechanism includes guide block and stopper, guide block and stopper are all fixed in the frame, the guide block is close to the conveyer belt sets up, mobilizable connecting rod of wearing to be equipped with on the guide block, there is the screw rod through threaded connection on the stopper, the one end of connecting rod with the center of limiting plate is fixed, the connecting rod perpendicular to the limiting plate sets up, the one end of screw rod is fixed with from the driving wheel, the other end with the other end of connecting rod contacts, the connecting rod with the screw rod is in on the same straight line, be connected with drive arrangement from the driving wheel.

Further, the driving device comprises a motor, a driving wheel is fixed on an output shaft of the motor, and the driving wheel is in transmission connection with the driven wheel through a belt.

Furthermore, a rotating rod is fixed on the driven wheel.

Further, the automatic thread cutting device comprises a driving rod, a cutter, a driving connecting rod and a driving motor, wherein the driving rod is slidably arranged on one side of the sewing opening, the cutter is fixed at one end, close to the sewing machine head, of the driving rod, the driving motor is fixed in the sewing opening, a driving wheel is fixed on an output shaft of the motor, one end of the driving connecting rod is hinged to the driving rod, and the other end of the driving connecting rod is hinged to the edge of the driving wheel.

Furthermore, one side of the sewing opening is provided with a raised sliding groove, and the driving rod is arranged in the sliding groove in a sliding manner.

Furthermore, the included angle between the cutting edge of the cutter and the movement direction of the cutter is an acute angle, and the cutting edge of the cutter is concave.

Furthermore, a cutting groove is further formed in the sewing opening and is located at the position opposite to the cutting edge of the cutter.

The utility model has the advantages that:

the utility model provides a sack closer, including the frame of installation sack closer aircraft nose and the conveyor of setting in sack closer aircraft nose below, conveyor is last to be provided with fixing device, fixing device includes slide rail bracket, limiting plate and push rod mechanism, conveyor's one end is fixed with slide rail bracket, the last slide bar that is provided with of slide rail bracket, the slide bar is mutually perpendicular with conveyor's direction of transfer, the mobilizable cover of one end of limiting plate is established on the slide bar, push rod mechanism sets up the center at the limiting plate, push rod mechanism is used for changing the position of limiting plate, realize fixing the wrapping bag of equidimension not, it emptys on conveyor to have avoided the wrapping bag, cause the unrestrained of fodder, and simultaneously, when having avoided sack closer empty operation, cause the suture to twine each other, and has improved production efficiency, also avoided.

The overhead seam mouthful that is provided with of sack closer, be provided with automatic tangent line device in the seam mouthful, will treat sutural wrapping bag and place on conveyor, conveyor transports the wrapping bag and sews up in sewing up the mouth, when sewing up the completion back, automatic tangent line device motion, and then will sew up the wrapping bag and sew up the suture between the mouth and cut off to realize the automatic broken string operation of sack closer, saved the manual broken string's of operating personnel process, and then reduced operating personnel's intensity of labour, improve the sack closer efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of a sack closer of the present invention;

FIG. 2 is a side view of the bag sewing machine of the present invention;

FIG. 3 is a schematic structural view of a fixing device in the sack closer of the present invention;

FIG. 4 is a schematic structural view of a push rod mechanism in the bag sewing machine of the present invention;

FIG. 5 is a top view of a bag sewing machine head of the bag sewing machine of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

in the figure, 1-machine base, 2-bag sewing machine head, 3-conveying device, 4-sewing opening, 5-sliding rail support, 6-limiting plate, 7-push rod mechanism, 8-sliding rod, 9-guiding block, 10-limiting block, 11-automatic thread cutting device, 12-machine frame, 13-conveying belt, 14-connecting rod, 15-screw rod, 16-driven wheel, 17-motor, 18-driving wheel, 19-belt, 20-rotating rod, 21-driving rod, 22-cutting knife, 23-driving connecting rod, 24-driving motor, 25-driving wheel and 26-grooving.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1 to 6, a bag sewing machine comprises a machine base 1 provided with a bag sewing machine head 2 and a conveying device 3 arranged below the bag sewing machine head 2, wherein a sewing opening 4 is arranged on the bag sewing machine head 2, an automatic thread cutting device 11 is arranged on one side of the sewing opening 4, the automatic thread cutting device 11 is used for cutting off a sewn thread on a packaging bag, the conveying direction of the conveying device 3 is parallel to the movement direction of the bag sewing machine head 2 during working, and a fixing device is arranged on the conveying device 3 and used for fixing the packaging bag;

as shown in fig. 3, the fixing device includes a slide rail bracket 5, a limiting plate 6 and a push rod mechanism 7, the slide rail bracket 5 is fixed at one end of the conveying device 3, a slide rod 8 is arranged on the slide rail bracket 5, the slide rod 8 is perpendicular to the conveying direction of the conveying device 3, the movable sleeve at one end of the limiting plate 6 is arranged on the slide rod 8, the push rod mechanism 7 is arranged at the center of the limiting plate 6, and the push rod mechanism 7 is used for changing the position of the limiting plate 6 to fix the packaging bags with different sizes.

Place the wrapping bag on conveyor 3, according to the big or small regulation push rod mechanism 7 of wrapping bag, push rod mechanism 7 drives limiting plate 6 and slides on slide bar 8, with limiting plate 6 and wrapping bag butt, makes limiting plate 6 carry on spacingly to the wrapping bag, and the effectual wrapping bag of having avoided is emptyd at the in-process of transportation, causes unrestrained of fodder, has reduced the waste of fodder. Meanwhile, the problem that the sewing machine is wound by the sewing threads when the sewing machine is in idle operation is avoided, the production efficiency is improved, and the sewing machine is prevented from being damaged.

When the sewing machine is specifically implemented, because the sizes of the packaging bags are different, the heights of the packaging bags are also different, in order to sew up the packaging bags with different sizes, the bag sewing machine head 2 is movably arranged on the machine base 1, the height of the bag sewing machine head 2 is adjusted according to the heights of the packaging bags, so that the bag sewing machine head 2 can sew up the packaging bags with different heights, and the processing range of the bag sewing machine is improved.

The conveyor 3 comprises a frame 12 and a conveyor belt 13 arranged on the frame 12. The slide rail bracket 5 is detachably fixed on the rack 12 through bolts, and it is noted that the slide rail bracket 5 cannot contact with the conveyor belt 13, so that the conveying speed of the conveyor belt 13 is prevented from being influenced, and meanwhile, the limiting plate 6 cannot contact with the conveyor belt 13.

As shown in fig. 4, the push rod mechanism 7 includes guide block 9 and stopper 10, guide block 9 and stopper 10 are all fixed in the frame, guide block 9 is close to conveyer belt 13 and sets up, mobilizable connecting rod 14 that wears to be equipped with on the guide block 9, there is screw rod 15 through threaded connection on the stopper 10, the one end of connecting rod 14 is fixed with the center of limiting plate 6, connecting rod 14 perpendicular to limiting plate 6 sets up, the one end of screw rod 15 is fixed with from driving wheel 16, the other end contacts with the other end of connecting rod 14, connecting rod 14 is located same straight line with screw rod 15, from driving wheel 16 being connected with drive arrangement, drive arrangement includes motor 17, be fixed with action wheel 18 on motor 17's the output shaft, action wheel 18 is connected through belt 19 transmission with from driving wheel 16, be fixed with dwa.

The specific working process of the push rod mechanism 7 is as follows: the motor 17 drives the driving wheel 18 to rotate, the driving wheel 18 drives the driven wheel 16 to rotate through the belt 19, the driven wheel 16 rotates in the limiting block 10, meanwhile, the driven wheel moves forwards along a thread line, the connecting rod 14 is further pushed to move forwards, the connecting rod 14 drives the limiting plate 6 to move on the sliding rod 8, and therefore the position of the limiting plate 6 is changed, the limiting plate 6 limits the packaging bag, and the packaging bag is prevented from being toppled in the transportation process. When the motor 17 stops operating, because the screw rod 15 is threaded connection with the limiting block 10, the limiting plate 6 is stabilized, and the limiting plate 6 is prevented from sliding under the action of the packaging bag.

Follow and be provided with dwang 20 on the driving wheel 16, operating personnel can be through manual rotation dwang 20, and then change limiting plate 6's position, realize the fixed to the wrapping bag.

As shown in fig. 5 and 6, the automatic thread cutting device 11 includes a driving rod 21, a cutter 22, a driving link 23 and a driving motor 24, the driving rod 21 is slidably disposed at one side of the sewing opening 4, the cutter 22 is fixed at one end of the driving rod 21 close to the sewing machine head 2, the driving motor 24 is fixed in the sewing opening 4, a driving wheel 25 is fixed on an output shaft of the motor 24, one end of the driving link 23 is hinged with the driving rod 21, and the other end is hinged with the edge of the driving wheel 25;

as described above, one side of the suture hole 4 is provided with a protruding sliding groove, and the driving rod 21 is slidably disposed in the sliding groove.

The specific implementation process of the automatic thread cutting device 11 is as follows: the driving motor 24 is started, the driving motor 24 drives the driving connecting rod 23 to do circular motion, and the driving connecting rod 23 drives the driving rod 21 to do reciprocating linear motion in the sliding chute, so that the upper cutter 22 on the driving rod 21 cuts off the suture.

According to the above, the included angle between the blade of the cutter 22 and the moving direction of the cutter 22 is an acute angle, the blade of the cutter 22 is concave, the suture hole 4 is further provided with the cutting groove 26, and the cutting groove 26 is located at the position opposite to the blade of the cutter 22.

The provision of the cutting slot 26 keeps the suture off the edge of the cutting slot 26 when the cutter 22 pushes the suture up to the cutting slot 26, and only the suture at the cutting edge of the cutter 22 enters the cutting slot 22, thereby increasing the tension of the suture and making it easier to cut.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A bag sewing machine comprises a machine base (1) provided with a bag sewing machine head (2) and a conveying device (3) arranged below the bag sewing machine head (2), and is characterized in that a sewing opening (4) is formed in the bag sewing machine head (2), an automatic thread cutting device (11) is arranged on one side of the sewing opening (4), the automatic thread cutting device (11) is used for cutting off a sewn thread on a packaging bag, the conveying direction of the conveying device (3) is parallel to the movement direction of the bag sewing machine head (2) during working, a fixing device is arranged on the conveying device (3), and the fixing device is used for fixing the packaging bag;

fixing device includes slide rail bracket (5), limiting plate (6) and push rod mechanism (7), the one end of conveyor (3) is fixed with slide rail bracket (5), be provided with slide bar (8) on slide rail bracket (5), slide bar (8) with conveyor (3)'s direction of transfer is mutually perpendicular, the mobilizable cover of one end of limiting plate (6) is established on slide bar (8), push rod mechanism (7) set up the center of limiting plate (6), push rod mechanism (7) are used for changing the position of limiting plate (6) realizes fixing the wrapping bag of equidimension not.

2. A machine as claimed in claim 1, characterized in that said conveying means (3) comprise a frame (12) and a conveyor belt (13) arranged on the frame (12).

3. A sack closer according to claim 2, characterized in that the push rod mechanism (7) comprises a guide block (9) and a stop block (10), the guide block (9) and the limiting block (10) are both fixed on the frame, the guide block (9) is arranged close to the conveyor belt (13), a connecting rod (14) is movably arranged on the guide block (9) in a penetrating way, a screw rod (15) is connected on the limiting block (10) through threads, one end of the connecting rod (14) is fixed with the center of the limit plate (6), the connecting rod (14) is perpendicular to the limiting plate (6), one end of the screw rod (15) is fixed with a driven wheel (16), the other end of the screw rod is contacted with the other end of the connecting rod (14), the connecting rod (14) and the screw rod (15) are in the same straight line, and the driven wheel (16) is connected with a driving device.

4. A bag closer according to claim 3, characterized in that the driving device comprises a motor (17), a driving wheel (18) is fixed on an output shaft of the motor (17), and the driving wheel (18) is in transmission connection with the driven wheel (16) through a belt (19).

5. A sack closer according to claim 4, characterized in that a swivelling lever (20) is fixed to the driven wheel (16).

6. A bag closer according to claim 1, wherein the automatic thread cutting device (11) comprises a driving rod (21), a cutter (22), a driving link (23) and a driving motor (24), the driving rod (21) is slidably disposed at one side of the sewing opening (4), the cutter (22) is fixed at one end of the driving rod (21) close to the bag closer (2), the driving motor (24) is fixed in the sewing opening (4), a driving wheel (25) is fixed on an output shaft of the driving motor (24), one end of the driving link (23) is hinged to the driving rod (21), and the other end is hinged to an edge of the driving wheel (25).

7. A machine according to claim 6, characterized in that one side of said stitching mouth (4) is provided with a raised runner, inside which said driving rod (21) is slidably arranged.

8. A bag closer according to claim 7, characterized in that the angle between the cutting edge of the cutter (22) and the direction of movement of the cutter (22) is acute and the cutting edge of the cutter (22) is concave.

9. A bag closer according to claim 8, characterized in that said closing opening (4) is further provided with a cutting slot (26), said cutting slot (26) being located opposite to the cutting edge of said cutter (22).