CN218804330U - Stitching device for inner and outer woven bags - Google Patents

Abstract

The utility model discloses a suturing device for woven bag inner and outer bag relates to woven bag processingequipment. The automatic bag opening and closing device comprises a frame body provided with a conveying mechanism, an opening mechanism, an ultrasonic sewing mechanism and a leveling and blanking mechanism, and further comprises a rotary bag turning mechanism and a woven bag opening mechanism matched with the opening mechanism; the rotary bag turning mechanism consists of a bag opening rotating assembly and a bag tail rotating assembly; the sack rotating assembly passes through actuating mechanism and movably installs on the support body of opening mechanism one side, the braided bag props a mouthful mechanism and installs on actuating mechanism, so that the braided bag props a mouthful mechanism and can alternate in opening the mechanism. The utility model discloses the effectual appearance that drops the phenomenon after preventing inside and outside bag both sides separation easily has improved the reliability of production, and the department of sewing up inside and outside bag after sewing up levels beautifully.

Description

Stitching device for inner and outer woven bags

Technical Field

The utility model relates to a braided bag processingequipment, more specifically say, it relates to a sewing device that is used for interior outer bag of braided bag.

Background

The sewing procedure of the inner bag and the outer bag of the traditional woven bag is realized by adopting a manual sewing mode. The mode not only wastes labor cost, but also has lower working efficiency and often cannot meet the production requirement.

In order to solve the problem, some equipment manufacturers provide corresponding woven bag production devices. The woven bag production line disclosed as CN208881195U comprises an inner bag conveying line, an outer bag conveying line and a woven bag conveying line, wherein an inner bag uncoiling mechanism, an inner bag fixed-length cutting mechanism, a turnover mechanism and an inner bag pushing mechanism are sequentially arranged on the inner bag conveying line along the conveying direction of an inner bag, the inner bag uncoiling mechanism is used for supporting an inner bag roll and uncoiling the inner bag roll, the turnover mechanism is used for fixing and overturning the end part, close to the outer bag, of the inner bag, and the inner bag pushing mechanism is used for pushing the inner bag into the outer bag; an outer bag uncoiling mechanism, an outer bag fixed-length cutting mechanism and an outer bag uncoiling mechanism are sequentially arranged on the outer bag conveying line along the conveying direction of the outer bags; the woven bag conveying line is sequentially provided with a bottom sewing mechanism, an ultrasonic welding mechanism and a leveling mechanism along the conveying direction of the woven bag, wherein the bottom sewing mechanism is used for performing spot welding sewing on the inner bag and the outer bag at the periphery of the opening of the woven bag, and the leveling mechanism is used for leveling and conveying the woven bag. The production line can automatically complete the production of woven bags, improves the automation degree, and has high efficiency and stable work.

However, in practical applications, the production line still has some problems. For example, the inner and outer bag sewing mechanism of the production line has the defects that the adsorption is unstable when the woven bag opening device of the bag opening of the woven bag separates the upper layer and the lower layer of the inner bag and the outer bag, so that the adsorbed parts drop, and the normal production is influenced. The detection shows that the main reason for the phenomenon is that the air leakage phenomenon easily occurs in the adsorption process of the opening mechanism due to the fact that the surface of the outer bag is uneven and gaps exist among the weaving strips. Moreover, the phenomenon is continuous, so that the inner bag is unstably adsorbed by the opening mechanism, and the inner bag is easy to drop.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to prior art, provide a suturing device for interior outer bag of braided bag, solved because of outer bag surface unevenness and weave and have the clearance between the strip, lead to opening the mechanism adsorption process and cause because of continuously leaking gas easily and adsorb the unstability to the inner bag, make its problem that drops.

The utility model relates to a sewing device for inner and outer woven bags, which comprises a frame body provided with a conveying mechanism, an opening mechanism, an ultrasonic sewing mechanism and a leveling blanking mechanism, and also comprises a rotary bag turning mechanism and a woven bag opening mechanism matched with the opening mechanism; the rotary bag turning mechanism consists of a bag opening rotating assembly and a bag tail rotating assembly; the sack rotating assembly passes through actuating mechanism and movably installs on the support body of opening mechanism one side, the braided bag props a mouthful mechanism and installs on actuating mechanism, so that the braided bag props a mouthful mechanism and can alternate in opening the mechanism.

The woven bag opening supporting mechanism comprises a connecting rod, an upper air pipe and a lower air pipe; the connecting rod is fixedly arranged on the driving mechanism and extends to one side, close to the opening mechanism, of the bag opening rotating assembly; the upper air pipe and the lower air pipe are fixedly arranged at the tail end of the connecting rod, one side of the upper air pipe, which is far away from the lower air pipe, is provided with a plurality of upper air outlet holes, and one side of the lower air pipe, which is far away from the upper air pipe, is provided with a plurality of lower air outlet holes; the upper air pipe and the lower air pipe are both connected with an external air supply source.

And a bag opening flattening mechanism is installed on one side of the connecting rod.

The bag opening flattening mechanism comprises a side rod, a first mounting seat, a first bolt and a pressing plate; the side rod is fixedly arranged on one side of the connecting rod, the first mounting seat is fixedly arranged on one side of the side rod, the first bolt is screwed in the first mounting seat, and the first bolt penetrates through the first mounting seat; the pressing plate is provided with a through hole with a diameter larger than that of the first bolt, and the first bolt is inserted into the through hole; the tail end of the first bolt is screwed with a locknut; and an elastic stretching assembly which enables the pressure plate to be always in an inclined state is arranged between the pressure plate and the side rods.

The elastic stretching assembly comprises a second mounting seat, a second bolt and a first spring; the second mounting seat is fixedly mounted on one side of the side rod, the second bolt is screwed in the second mounting seat, and the second bolt penetrates through the second mounting seat; one end of the first spring is fixedly installed at the end part of the second bolt, the other end of the first spring is fixedly installed on the pressing plate, and the joint of the first spring and the pressing plate is located on the pressing plate, far away from one side of the mounting base, of the through hole.

The driving mechanism comprises a first support, a first air cylinder, a mounting plate and two first sliding rods; the first support is fixedly arranged on the first support body, the two first sliding rods are fixedly arranged above the first support, and the mounting plate is provided with two through holes which are in one-to-one corresponding sliding connection with the two sliding rods; the first air cylinder is fixedly installed on the first support, and the piston end of the first air cylinder is fixedly installed on the installation plate.

The bag opening rotating assembly comprises two rollers, a rotating driving part and a hinge driving part, wherein the rotating driving part is used for driving the two rollers to rotate synchronously and in the same direction, and the hinge driving part is used for driving the rollers to move towards the outer side of the frame body;

the bag tail rotating assembly comprises a lifting driving part and a translation driving part, wherein the lifting driving part is used for lifting the bag tail of the woven bag from the conveying mechanism, and the translation driving part is used for driving the lifting driving part to move back and forth along the conveying direction.

The hinge driving part comprises a second air cylinder, a V-shaped connecting piece and a support rod; the support rod is fixedly arranged on one side of the mounting plate, and the cylinder II is rotatably arranged between the support rod and the mounting plate; the lower extreme at branch is installed in the rotation of the V type corner of V type connecting piece, the one end of V type connecting piece is connected with the piston end rotation of cylinder two, the other end of V type connecting piece rotates installs the pivot, the pivot is close to the braided bag and props the one end fixed mounting of a mouthful mechanism and has the gyro wheel, the other end and the drive end of rotation drive division of pivot are connected.

The lifting driving part comprises an upper supporting plate, a lower supporting plate, a motor II and a mounting box II; the upper supporting plate is fixedly arranged at the driving end of the translation driving part, a third air cylinder is arranged below the upper supporting plate, and the lower supporting plate is fixedly arranged at the piston end of the third air cylinder; the second motor is fixedly arranged below the lower supporting plate, and the second mounting box is fixedly connected with an output shaft of the second motor; two sides of the second mounting box are provided with a third clamping disc through elastic components, a second rotary table is arranged on the second mounting box on one side of the third clamping disc, a double-shaft motor is arranged in the second mounting box, and two shaft ends of the double-shaft motor are fixedly connected with the two second rotary tables in a one-to-one correspondence manner; and a second rotating arm is fixedly arranged on the circumferential surface of the second rotating disk, and a fourth clamping disk which can be in three-phase contact with the clamping disk is fixedly arranged at the tail end of the second rotating arm.

The conveying mechanism comprises two electric sliding rails symmetrically arranged below the frame body, a first installation box, a first motor, a first rotating disc, a first rotating arm, a first clamping disc and a second clamping disc, wherein the first installation box, the first motor, the first rotating disc, the first rotating arm, the first clamping disc and the second clamping disc are arranged on a sliding block of the electric sliding rails; the first mounting box is fixedly mounted on the sliding block, the first motor is fixedly mounted on one side of the first mounting box, and an output shaft of the first motor penetrates through the first mounting box and extends into the first mounting box; the first rotating disc is fixedly arranged on an output shaft of the first motor, the first rotating arm is fixedly arranged on one side of the first rotating disc, the first clamping disc is fixedly arranged at the tail end of the first rotating arm, and the first mounting box is fixedly provided with a second clamping disc which can be in contact with the first clamping disc; and the frame body above the electric slide rail is provided with a long slotted hole, the two clamping discs are positioned in the long slotted hole, and the top end surfaces of the two clamping discs are flush with the top end surface of the frame body.

Advantageous effects

The utility model has the advantages that:

1. the opening supporting mechanism is provided with a woven bag which mainly comprises an upper air pipe and a lower air pipe, and after the two air pipes enter the bag opening, the air pipes are supplied with air through an external air supply source. Gas blows out from the air outlet to blow to the sack, thereby makes the sack strutted more evenly, has avoided because of outer bag surface unevenness and has the clearance between the weaving strip, leads to opening mechanism to adsorb the in-process and cause the inner bag to adsorb unstably because of continuously leaking gas easily, makes its problem that drops. The problem that the inner bag and the outer bag are easy to fall off after being separated is solved, and the production reliability is improved.

2. Set up the sack mechanism that flattens in one side of ultrasonic wave sewing up the mechanism to the department of waiting to sew up of sack is sewed up through flattening at first again, can effectually avoid the upset in-process because of the interior outer bag not laminating have the unevenness that the clearance appears, leads to the not pleasing to the eye problem of interior outer bag splice behind the ultrasonic bonding.

Drawings

FIG. 1 is a schematic perspective view of the suturing device of the present invention;

fig. 2 is a schematic view of a partial structure of the conveying mechanism of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of the structure of FIG. 3 at C;

FIG. 5 is an enlarged view of the structure at B in FIG. 1;

fig. 6 is a sectional view of the mounting structure of the sleeve and the third clamping disk of the present invention.

Wherein: 1-frame body, 2-conveying mechanism, 3-opening mechanism, 4-ultrasonic wave sewing mechanism, 5-woven bag opening mechanism, 6-bag opening rotating assembly, 7-bag tail rotating assembly, 8-driving mechanism, 9-bag opening flattening mechanism, 10-photoelectric switch, 11-conveyor belt, 12-driving device, 13-guide plate, 14-material receiving mechanism, 21-electric slide rail, 22-installation box I, 23-motor I, 24-turntable I, 25-rotating arm I, 26-clamping disk I, 27-clamping disk II, 28-long slotted hole, 31-cylinder IV, 32-sealing air pipe I, 33-sealing air pipe II, 34-slide bar, 35-suction disc, 36-air hole II 41-six cylinder, 42-ultrasonic welding device, 43-supporting platform, 51-connecting rod, 52-upper air pipe, 53-lower air pipe, 54-air outlet hole, 61-roller, 62-two cylinder, 63-V-shaped connecting piece, 64-supporting rod, 65-three motor, 66-driven wheel, 67-driving belt, 71-upper supporting plate, 72-lower supporting plate, 73-two motor, 74-mounting box II, 75-three cylinder, 76-three clamping disc, 77-two rotary disc, 78-two rotary arm, 79-four clamping disc, 710-two bracket, 711-five cylinder, 712-mounting sliding plate, 713-two slide rod, 714-sleeve, 715-two spring, 716-movable rod, 717-limiting ring, 81-bracket I, 82-cylinder I, 83-mounting plate, 84-sliding rod I, 91-side rod, 92-mounting seat I, 93-bolt I, 94-pressing plate, 95-mounting seat II, 96-bolt II and 97-spring I.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, and any modifications made by anyone within the scope of the claims of the present invention will still fall within the scope of the claims of the present invention.

Referring to fig. 1, the utility model discloses a sewing device for woven bag inner and outer bag, including installing conveying mechanism 2, opening mechanism 3, rotatory bag turning mechanism, the woven bag that the cooperation opened the mechanism and used props a mouthful mechanism 5, ultrasonic wave sewing mechanism 4 and flattening blanking mechanism's support body 1. Wherein, the one side of 1 tip of support body is established to the feed end, and the braided bag passes through the feed end and puts to on the support body 1. The other side of the end part of the frame body 1 is provided with a photoelectric switch 10 for detecting whether a woven bag is arranged on the frame body 1. If there is the braided bag to be placed on support body 1, then photoelectric switch 10 sends signal to PLC, and PLC will start conveying mechanism 2 to convey the braided bag.

The conveying mechanism 2 is used for conveying the woven bag sleeved with the inner bag in the outer bag to the opening mechanism. Referring to fig. 2, the conveying mechanism 2 includes two electric slide rails 21 symmetrically installed below the frame body 1, a first installation box 22 installed on a slide block of the electric slide rail 21, a first motor 23, a first rotary table 24, a first rotary arm 25, a first clamping disc 26, and a second clamping disc 27. The first mounting box 22 is fixedly mounted on the sliding block, the first motor 23 is fixedly mounted on one side of the first mounting box 22, and an output shaft of the first motor 23 penetrates through the first mounting box 22 and extends into the first mounting box 22. The first rotating disk 24 is fixedly arranged on an output shaft of the first motor 23, the first rotating arm 25 is fixedly arranged on one side of the first rotating disk 24, the first clamping disk 26 is fixedly arranged at the tail end of the first rotating arm 25, and the second clamping disk 27 which can be contacted with the first clamping disk 26 and is completely matched after being contacted is fixedly arranged on the first mounting box 22. A long slot hole 28 is formed in the frame body 1 above the electric slide rail 21, the second clamping disc 27 is located in the long slot hole 28, and the top end face of the second clamping disc 27 is flush with the top end face of the frame body 1.

When the photoelectric switch 10 sends a signal to the PLC, the PLC sends a signal to a motor controller of the first motor 23, so that the first motor 23 acts to drive the first rotating arm 25 and the first clamping disk 26 to rotate. When the first clamping disk 26 is contacted with the second clamping disk 27, the bag tail of the woven bag can be clamped. After the clamping disc clamps the woven bag, the electric slide rail 21 is started. Under the driving action of the electric slide rail 21, the woven bag is conveyed to the rotary bag turning mechanism of the sewing device.

After the woven bag is conveyed to the rotary bag overturning mechanism, the opening mechanism 3 is firstly actuated. The opening mechanism 3 is used for opening the bag opening at the end to be sewn of the woven bag and opening the bag openings of the inner bag and the outer bag at the same time.

Referring to fig. 3, the opening mechanism 3 of the present embodiment includes a cylinder four 31, a sealing air pipe one 32 and a sealing air pipe two 33. The cylinder IV 31 is fixedly arranged on the bracket I81, and the sealing air pipe I32 is fixedly arranged at the tail end of the cylinder IV 31. Two sliding rods 34 are fixedly arranged above the first sealed air pipe 32, and the sliding rods 34 are movably inserted in the first bracket 81. One side of the first sealed air pipe 32, which is far away from the fourth cylinder 31, is provided with a plurality of first air holes, and the first air holes are internally provided with suckers 35. The second sealed air pipe 33 is fixedly installed in the frame body 1 below the first sealed air pipe 32, and the surface of the second sealed air pipe 33 is flush with the surface of the frame body 1. A plurality of second air holes 36 are formed in one side, close to the first sealing air pipe 32, of the second sealing air pipe 33, and the first sealing air pipe 32 and the second sealing air pipe 33 are connected with an external vacuum pump.

When the braided bag stops the conveying back, cylinder four 31 action to drive sealed trachea one 32 and move down, and after the piston rod of cylinder four 31 extended to the longest, cylinder four 31 stopped the action, and sucking disc 35 at this moment will press on the braided bag. And starting a vacuum pump, and exhausting the sealed air pipe through the vacuum pump. Because the inner bag is a plastic bag made of a plastic film and is not air-permeable, the two sides of the woven bag can be respectively adsorbed on the corresponding sealed air pipes by pumping air from the two sealed air pipes. When the cylinder four 31 acts to make the piston rod contract, the upper side of the woven bag is taken up, so that the bag opening of the woven bag is opened.

The rotary bag turning mechanism consists of a bag opening rotating assembly 6 and a bag tail rotating assembly 7 and is used for driving the whole woven bag to rotate by taking the central line of the woven bag as an axis. The bag mouth rotating assembly 6 is movably arranged on the frame body 1 at one side of the opening mechanism 3 through a driving mechanism 8. The woven bag opening supporting mechanism 5 is installed on the driving mechanism 8, so that the woven bag opening supporting mechanism 5 can be inserted into the opening mechanism 3 in a penetrating mode.

The driving mechanism 8 includes a first bracket 81, a first cylinder 82, a mounting plate 83, and two first sliding rods 84. The first support 81 is fixedly installed on the frame body 1, the first two sliding rods 84 are fixedly installed above the first support 81, and the installing plate 83 is provided with two through holes in one-to-one corresponding sliding connection with the first two sliding rods 84. The first air cylinder 82 is fixedly arranged on the first support 81, and the piston end of the first air cylinder 82 is fixedly arranged on the mounting plate 83.

Through the flexible action of cylinder 82, can drive mounting panel 83 and install sack swivel subassembly 6 and the braided bag on mounting panel 83 and prop a mouthful mechanism 5 and carry out the back-and-forth movement to realize sack swivel subassembly 6 and braided bag and prop a mouthful mechanism 5 and get into or shift out the sack.

Referring to fig. 4, the woven bag opening supporting mechanism 5 includes a connecting rod 51, an upper air tube 52, and a lower air tube 53. Connecting rod 51 fixed mounting is on mounting panel 83, and connecting rod 51 extends to sack rotating assembly 6 and is close to one side of opening mechanism 3 to make actuating mechanism 8 drive the braided bag and prop mouthful mechanism 5 and sack rotating assembly 6 when moving toward the braided bag direction, the braided bag props mouthful mechanism 5 and at first enters into the sack. Go up trachea 52 and lower trachea 53 and all fixed mounting at the end of connecting rod 51, go up trachea 52 and seted up a plurality of ventholes 54 on keeping away from the one side of lower trachea 53, lower trachea 53 is kept away from the one side of going up trachea 52 and is seted up a plurality of ventholes down. The upper air pipe 52 and the lower air pipe 53 are connected to an external air supply source.

When the piston rod of the first cylinder 82 of the driving mechanism 8 extends and the woven bag opening supporting mechanism 5 enters the bag opening, the external air supply source supplies air to the air pipe. Gas blows out from the venthole to blow to the sack, thereby make the sack strutted more evenly, avoided because of outer bag surface unevenness and weave and have the clearance between the strip, lead to opening mechanism 3 to adsorb the in-process and cause the inner bag to adsorb unstably because of continuously leaking gas easily, make its problem that drops.

The bag opening rotating assembly 6 of this embodiment includes two rollers 61 and a rotation driving portion for driving the two rollers 61 to rotate synchronously and in the same direction, and a hinge driving portion for driving the rollers 61 to move toward the outside of the frame body 1. The bag tail rotating assembly 7 comprises a lifting driving part for lifting the bag tail of the woven bag from the conveying mechanism 2 and a translation driving part for driving the lifting driving part to move back and forth along the conveying direction.

Specifically, the rotation driving portion includes a third motor 65, a driving wheel, and two driven wheels 66. The third motor 65 is installed at one side of the installation plate 83, and an output shaft of the third motor 65 penetrates through the installation plate 83. The driving wheel is fixedly arranged at the tail end of an output shaft of the motor III 65. The driving wheel is mounted on a mounting plate 83 on one side of the driving wheel. The hinge driving part comprises a second air cylinder 62, a V-shaped connecting piece 63 and a support rod 64. The supporting rod 64 is fixedly arranged on one side of the mounting plate 83, and the second air cylinder 62 is rotatably arranged between the supporting rod 64 and the mounting plate 83. The lower extreme at branch 64 is installed in the rotation of the V type corner of V type connecting piece 63, and the one end of V type connecting piece 63 is connected with the piston end rotation of two 62 cylinders, and the other end of V type connecting piece 63 rotates installs the pivot, and the pivot is close to the one end fixed mounting that the braided bag propped mouthful mechanism 5 and is had gyro wheel 61, and the other end fixed mounting of pivot has one to follow driving wheel 66. The driving wheel, the tensioning wheel and the two driven wheels 66 are connected by a transmission belt 67.

Referring to fig. 5 and 6, the translation driving part includes a second bracket 710, a fifth cylinder 711, and a mounting slide 712. The lifting driving part comprises an upper supporting plate 71, a lower supporting plate 72, a third air cylinder 75, a second motor 73 and a second mounting box 74. The second bracket 710 is fixedly arranged on the frame body 1, the fifth cylinder 711 is fixedly arranged on the second bracket 710, and the upper support plate 71 is fixedly arranged at the tail end of a piston rod of the fifth cylinder 711. The upper support plate 71 is fixedly connected with a mounting sliding plate 712, and the mounting sliding plate 712 is slidably mounted above the second bracket 710. A third cylinder 75 is arranged below the upper supporting plate 71, and a lower supporting plate 72 is fixedly arranged at the piston end of the third cylinder 75. Four second sliding rods 713 are fixedly mounted below the upper support plate 71, the second sliding rods 713 penetrate through the lower support plate 72, and the second sliding rods 713 are connected with the penetrating parts in a sliding mode. The second motor 73 is fixedly arranged below the lower supporting plate 72, and the second mounting box 74 is fixedly connected with an output shaft of the second motor 73. To ensure stability, the output shaft of the second motor 73 may be connected to the lower support plate 72 through a bearing housing.

The equal fixed mounting in both sides of the second 74 of installing bin has sleeve 714, and the activity is pegged graft in sleeve 714 and is had movable rod 716, and the inner wall of sleeve 714 below and the outer wall of movable rod 716 top all are equipped with spacing ring 717, and there is the interference face for two spacing rings 717 to avoided movable rod 716 to drop from sleeve 714. A third clamping disc 76 is fixedly arranged below the movable rod 716, and a second spring 715 is sleeved on the movable rod 716 between the third clamping disc 76 and the sleeve 714 so that the two clamping discs have a buffering function when clamping the woven bag. A second rotating disk 77 is arranged on the second mounting box 74 on one side of the third clamping disk 76, a double-shaft motor is mounted in the second mounting box 74, and two shaft ends of the double-shaft motor are fixedly connected with the second rotating disks 77 in a one-to-one correspondence manner. A second rotating arm 78 is fixedly arranged on the circumferential surface of the second rotating disk 77, and a fourth clamping disk 79 which can be contacted with the third clamping disk 76 is fixedly arranged at the tail end of the second rotating arm 78. In addition, the frame body 1 positioned below the second mounting box 74 is hollowed out, so that the third clamping disc 76 and the fourth clamping disc 79 can clamp the woven bag.

When the piston rod of the first cylinder 82 of the driving mechanism 8 extends and the roller 61 enters the bag opening, and the woven bag opening supporting mechanism 5 acts, the piston rod of the second cylinder 62 extends out. At the same time, the piston rod of cylinder five 711 is also extended. The piston rod of the second cylinder 62 is extended to rotate the V-shaped connecting member 63, so as to drive the roller 61 to move toward the outside of the frame body 1 and finally contact with the inner wall of the bag opening. And the extension of the piston rod of the cylinder three 75 can make the mounting box two 74 descend, and when the piston rod of the cylinder three 75 extends to the longest, the clamping disc three 76 contacts with the woven bag. After the third cylinder 75 acts in place, the double-shaft motor is started to drive the fourth clamping disc 79 to rotate, and finally the clamping disc and the third clamping disc 76 form clamping on the bag tail of the woven bag. And then, the piston rods of the third air cylinder 75 are contracted until the transmission gaps between the bag tails of the woven bags and the conveyor belt group are positioned on the same horizontal plane. At this moment, motor three 65 and motor two 73 start simultaneously, and motor three 65 orders about gyro wheel 61 and rotates to realize the upset of sack, and motor two 73 drive install bin two 74 rotates in order to realize the upset of bag tail, and the upset direction of sack and bag tail is unanimous, can realize the upset of braided bag.

For avoiding the unevenness that the in-process of overturning exists the clearance because of interior outer bag not laminating and appear, lead to the problem of the interior outer bag welding department not aesthetic after ultrasonic bonding, the utility model discloses install sack flattening mechanism 9 in one side of connecting rod 51, and sack flattening mechanism 9 is located one side that ultrasonic wave sews up mechanism 4 to make the sack treat the department of sewing up at first through the back that flattens of sack flattening mechanism 9, weld again and sew up.

Specifically, the bag mouth flattening mechanism 9 includes a side bar 91, a first mounting seat 92, a first bolt 93 and a pressing plate 94. The side rod 91 is fixedly arranged on one side of the connecting rod 51, the first mounting seat 92 is fixedly arranged on one side of the side rod 91, the first bolt 93 is screwed in the first mounting seat 92, and the first bolt 93 penetrates through the first mounting seat 92. The platen 94 is an L-shaped structure. The pressing plate 94 is provided with a through hole with a diameter larger than that of the first bolt 93, and the first bolt 93 is inserted into the through hole. The tail end of the first bolt 93 is screwed with a locknut. An elastic stretching component which enables the pressure plate 94 to be always in an inclined state is arranged between the pressure plate 94 and the side rods 91. The pressing plate 94 is inclined to the side away from the opening mechanism 3, and the position where the pressing plate 94 contacts with the woven bag and the surface of the frame body 1 have a thickness slightly larger than that of one side of the woven bag. If the sum of the wall thickness of one side of the inner bag and the wall thickness of one side of the outer bag is 0.2 mm, the distance between the pressure plate 94 and the frame body 1 can be 0.3 mm or 0.4 mm.

After the roller 61 is inserted into the pocket, the platen 94 is positioned at the seam of the pocket. When the bag turning mechanism is rotated to drive the woven bag to turn, the pressing plate 94 flattens the seam.

In this embodiment, the elastic tension assembly includes a second mounting seat 95, a second bolt 96 and a first spring 97. The second mounting seat 95 is fixedly mounted on one side of the side rod 91, and the second mounting seat 95 is located above the pressing plate 94. The second bolt 96 is screwed into the second mounting seat 95, and the second bolt 96 penetrates through the second mounting seat 95. One end of the first spring 97 is fixedly installed at the end part of the second bolt 96, the other end of the first spring 97 is fixedly installed on the pressure plate 94, and the joint of the first spring 97 and the pressure plate 94 is located on the pressure plate 94 on the side, far away from the second mounting base 95, of the through hole.

Since the second mounting seat 95 is located above the pressure plate 94, the first spring 97 is in an inclined state after being mounted. And the joint of the first spring 97 and the pressure plate 94 is positioned on the pressure plate 94 at one side of the through hole far away from the second mounting seat 95, so that when the first spring 97 is in a stretching state, one end of the pressure plate 94 is stressed, and the pressure plate 94 is in an inclined state. The second bolt 96 is used to adjust the extension length of the first spring 97, thereby changing the force of the first spring 97 on the pressure plate 94.

The ultrasonic sewing mechanism 4 is used for sewing the bag openings of the rotating woven bags so as to sew the bag openings of the inner bag and the outer bag.

Specifically, the ultrasonic stitching mechanism 4 includes a cylinder six 41, an ultrasonic welding device 42, and a support platform 43. The cylinder six 41 is arranged below the mounting plate 83, the ultrasonic welding device 42 is arranged at the tail end of a piston rod of the cylinder six 41 through a cross rod, and the supporting platform 43 is arranged in the sealed air pipe two 33 so as to divide the sealed air pipe two 33 into two sections.

When the first cylinder 82 of the driving mechanism 8 stops, the ultrasonic welding device 42 is located above the supporting platform 43. And then the air cylinder six 41 acts to enable the ultrasonic welding device 42 to descend to the position where the bag mouth of the woven bag can be sewn. When the woven bag is driven to rotate by the rotary bag turning mechanism, the ultrasonic welding device 42 works simultaneously to sew the bag opening of the woven bag.

It should be noted that the ultrasonic welding device 42 and its application to sewing a woven bag mouth described in the present embodiment are conventional techniques, and therefore, no further discussion is made herein.

The leveling and blanking mechanism is used for conveying the woven bags with the inner bags and the outer bags sewn and leveling the woven bags during conveying. Wherein, flattening blanking mechanism includes flattening mechanism and receiving agencies.

As shown in fig. 1, the flattening mechanism of the present embodiment is composed of eight conveyor belts 11 and a driving device 12 for driving the conveyor belts 11. The eight conveyor belts 11 are uniformly distributed and arranged in parallel up and down. The two vertically parallel conveyor belts 11 form a conveyor belt group, and the conveying directions of the conveying surfaces of the conveyor belt group, to which the two conveyor belts 11 are attached, are the same. The drive device 12 includes a reduction motor and a connecting shaft mounted on an output shaft of the reduction motor. The connecting shaft is connected with the conveyor belt 11 on the same horizontal plane to realize driving of the conveyor belt 11.

The feed ends of the conveyor belt groups on the two sides of the rack body 1 are positioned behind the feed ends of the two conveyor belt groups in the rack body 1. When translation drive division drives the bag tail rotating assembly 7 that the centre gripping has the braided bag that stitches to remove toward leveling mechanism direction, the braided bag contacts with two conveyer belt group feed ends in the support body 1 to realize that the braided bag enters into conveyer belt and organizes and carry out the flattening conveying.

Because the braided bag belongs to flexible bag, its two end angles will hang down, for the conveyer belt group that ensures that the end angle position of braided bag can enter into 1 both sides of support body, conveyer belt group feed end the place ahead of 1 both sides of support body all is equipped with the leading-in plate 13 that the slope was arranged to the guide is woven bag end angle department and is entered into in the conveyer belt group of 1 both sides of support body.

Note that the feed end of the conveyor belt 11 is the front in this embodiment.

Regarding receiving agencies 14, its concrete structure and theory of operation are prior art, the utility model discloses do not improve it, so this paper does not carry out more discussion to it yet.

The utility model discloses a theory of operation is:

firstly, a woven bag with a bag opening to be sewn is put into the frame body 1 through a feeding end. When the photoelectric switch 10 detects that a woven bag is placed on the frame body 1, the first motor 23 acts to drive the first rotating arm 25 and the first clamping disc 26 to rotate so as to clamp the bag tail of the woven bag. After the woven bag is clamped, the electric slide rail 21 is started. The woven bags are conveyed to the seam rotating bag overturning mechanism under the driving action of the electric slide rail 21.

And secondly, when the woven bag is conveyed to the rotary bag turning mechanism and the electric slide rail 21 stops moving, the cylinder four 31 moves to drive the sealing air pipe one 32 to move downwards, and the cylinder four 31 stops moving after a piston rod of the cylinder four 31 extends to the longest. The suction cup 35 will press on the woven bag at this time. And starting a vacuum pump, and exhausting the sealed air pipes through the vacuum pump so as to enable the two sides of the woven bag to be adsorbed on the corresponding sealed air pipes respectively. When the cylinder four 31 is reset, the upper side of the woven bag is taken up, so that the bag opening of the woven bag is opened.

And thirdly, after the bag opening of the woven bag is opened, starting the first air cylinder 82 to extend a piston rod of the first air cylinder, so that the bag opening rotating assembly 6 and the woven bag opening supporting mechanism 5 move towards the bag opening direction, and the bag opening rotating assembly 6 and the woven bag opening supporting mechanism 5 enter the bag opening.

And fourthly, after the first air cylinder 82 stops acting, starting an external air supply source, such as an air pump. The air pipe is supplied with air by an external air supply source. The air is blown out from the air outlet and blown to the bag opening, so that the bag opening is more uniformly opened.

And a fifth step, simultaneously starting the second air cylinder 62 and the third air cylinder 75 to extend the piston rods of the second air cylinder and the third air cylinder. The piston rod of the second cylinder 62 is extended to rotate the V-shaped connecting member 63, so as to drive the roller 61 to move toward the outside of the frame body 1 and finally contact with the inner wall of the bag opening. And the extension of the piston rod of the cylinder three 75 can make the mounting box two 74 descend, and when the piston rod of the cylinder three 75 extends to the longest, the clamping disc three 76 contacts with the woven bag. After the third cylinder 75 acts in place, the double-shaft motor is started to drive the fourth clamping disc 79 to rotate, and finally the clamping disc and the third clamping disc 76 form clamping on the bag tail of the woven bag. And after the fourth 79 and the third 76 clamping discs clamp the bag tail of the woven bag, the first motor 23 reversely acts to drive the first clamping disc 26 to reset, so that the first clamping disc 26 is separated from the second clamping disc 27, and the clamping of the bag tail is released.

And then, the piston rods of the third air cylinder 75 are contracted until the transmission gaps between the bag tails of the woven bags and the conveyor belt group are positioned on the same horizontal plane. Cylinder six 41 is actuated. And after the cylinder six 41 is in place, the motor three 65, the motor two 73 and the ultrasonic welding device 42 are started simultaneously. The third motor 65 drives the roller 61 to rotate so as to realize the turning of the bag opening, the second motor 73 drives the second mounting box 74 to rotate so as to realize the turning of the bag tail, and the turning directions of the bag opening and the bag tail are consistent, so that the turning of a woven bag is realized. And in the process of overturning the woven bag, the ultrasonic welding device carries out spot welding and sewing on the inner bag and the outer bag on the periphery of the opening of the woven bag.

Sixthly, after the woven bag is turned for a circle, the process of sewing the bag opening of the woven bag is completed, the second motor 73 and the third motor 65 stop simultaneously, and the sixth cylinder 41, the second cylinder 62 and the first cylinder 82 reset in sequence to move the bag opening rotating assembly 6 and the woven bag opening supporting mechanism 5 out of the bag opening. The vacuum pump stops working.

And seventhly, actuating a cylinder fifth 711 of the translation driving part, and contracting a piston rod of the cylinder fifth 711 to enable the bag tail rotating assembly 7 clamping the woven bag to move towards the leveling mechanism. When the braided bag enters into two conveyer belt groups in support body 1, biax motor counter-action makes centre gripping dish four reset to release the centre gripping to the braided bag. And the piston rod of cylinder three 75 resets after release. Next, the cylinder five 711 stops operating, and is reset. The contraction speed of the piston rod of the cylinder five 711 is preferably consistent with the conveying speed of the conveying belts 11, and the distance between two adjacent conveying belts 11 on the left and right is larger than the diameter of the clamping disc four 79.

The braided bag is at the in-process of leveling mechanism conveying, extrudees the conveying of braided bag through the group of conveyer belt, can be with the gas outgoing in the bag, realizes the flattening to the braided bag.

The braided bag will enter into receiving agencies 14 after the conveying of leveling mechanism comes out, realizes the collection to the braided bag through receiving agencies.

In the working principle of the suturing device, the control of the motor, the cylinder and the electric slide rail 21 is completed by a PLC. Although the utility model discloses structure to sewing up the device is improved, its control process is unanimous with the control process of the braided bag sewing mechanism among the prior art, the utility model discloses do not improve this control process.

The fixing device of the present invention can be fixed by any known fixing connection method, such as bolt connection, welding, etc. The fixed mounting in this embodiment is preferably achieved by welding.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims (10)

1. A sewing device for inner and outer bags of a woven bag comprises a frame body (1) provided with a conveying mechanism (2), an opening mechanism (3), an ultrasonic sewing mechanism (4) and a leveling blanking mechanism, and is characterized by further comprising a rotary bag turning mechanism and a woven bag opening mechanism (5) matched with the opening mechanism (3) for use; the rotary bag turning mechanism consists of a bag opening rotating assembly (6) and a bag tail rotating assembly (7); sack rotating assembly (6) are movably installed on support body (1) of opening mechanism (3) one side through actuating mechanism (8), the braided bag props a mouthful mechanism (5) and installs on actuating mechanism (8), so that the braided bag props a mouthful mechanism (5) and can alternate in opening mechanism (3).

2. A sewing device for inner and outer bags of a woven bag according to claim 1, wherein the woven bag mouth-stretching means (5) comprises a connecting rod (51), an upper air tube (52) and a lower air tube (53); the connecting rod (51) is fixedly arranged on the driving mechanism (8), and the connecting rod (51) extends to one side, close to the opening mechanism (3), of the bag mouth rotating assembly (6); the upper air pipe (52) and the lower air pipe (53) are fixedly arranged at the tail end of the connecting rod (51), one side of the upper air pipe (52) far away from the lower air pipe (53) is provided with a plurality of upper air outlet holes (54), and one side of the lower air pipe (53) far away from the upper air pipe (52) is provided with a plurality of lower air outlet holes; the upper air pipe (52) and the lower air pipe (53) are both connected with an external air supply source.

3. A seaming apparatus for inner and outer bags of a woven bag according to claim 2, wherein a bag mouth flattening mechanism (9) is mounted to one side of the connecting bar (51).

4. A seaming apparatus for inner and outer woven bags according to claim 3, wherein the bag mouth flattening mechanism (9) comprises a side bar (91), a first mounting seat (92), a first bolt (93) and a pressure plate (94); the side rod (91) is fixedly arranged on one side of the connecting rod (51), the first mounting seat (92) is fixedly arranged on one side of the side rod (91), the first bolt (93) is screwed in the first mounting seat (92), and the first bolt (93) penetrates through the first mounting seat (92); the pressing plate (94) is provided with a through hole with the diameter larger than that of the first bolt (93), and the first bolt (93) is inserted into the through hole; the tail end of the first bolt (93) is screwed with a locknut; an elastic stretching assembly which enables the pressing plate (94) to be always in an inclined state is arranged between the pressing plate (94) and the side rods (91).

5. A seaming apparatus for woven inner and outer bags according to claim 4, wherein the elastic tension member comprises a second mounting seat (95), a second bolt (96) and a first spring (97); the second mounting seat (95) is fixedly mounted on one side of the side rod (91), the second bolt (96) is screwed in the second mounting seat (95), and the second bolt (96) penetrates through the second mounting seat (95); one end of the first spring (97) is fixedly installed at the end part of the second bolt (96), the other end of the first spring (97) is fixedly installed on the pressing plate (94), and the joint of the first spring (97) and the pressing plate (94) is located on the pressing plate (94) on one side, far away from the second mounting seat (95), of the through hole.

6. A seaming apparatus for inner and outer woven bags according to claim 2, wherein the driving mechanism (8) comprises a first bracket (81), a first air cylinder (82), a mounting plate (83) and two first sliding bars (84); the bracket I (81) is fixedly arranged on the bracket body (1), the two sliding rods I (84) are fixedly arranged above the bracket I (81), and the mounting plate (83) is provided with two through holes which are in one-to-one corresponding sliding connection with the two sliding rods I (84); the first air cylinder (82) is fixedly installed on the first support (81), and the piston end of the first air cylinder (82) is fixedly installed on the installation plate (83).

7. A seaming apparatus for inner and outer pockets of a woven bag according to claim 6, wherein the pocket mouth rotation assembly (6) comprises two rollers (61) and a rotation driving portion for driving the two rollers (61) to rotate synchronously and in the same direction, a hinge driving portion for driving the rollers (61) to move toward the outer side of the frame body (1);

the bag tail rotating assembly (7) comprises a lifting driving part and a translation driving part, wherein the lifting driving part is used for lifting the bag tail of the woven bag from the conveying mechanism (2), and the translation driving part is used for driving the lifting driving part to move back and forth along the conveying direction.

8. A seaming apparatus for inner and outer woven bags according to claim 7, wherein the hinge driving part comprises a second cylinder (62), a V-shaped link (63) and a strut (64); the supporting rod (64) is fixedly arranged on one side of the mounting plate (83), and the second air cylinder (62) is rotatably arranged between the supporting rod (64) and the mounting plate (83); the lower extreme in branch (64) is installed in the rotation of the V type corner of V type connecting piece (63), the one end of V type connecting piece (63) is connected with the piston end rotation of two (62) of cylinder, the other end rotation of V type connecting piece (63) installs the pivot, the pivot is close to the one end fixed mounting that the braided bag propped a mouthful mechanism (5) and has gyro wheel (61), the other end of pivot is connected with the drive end that rotates the drive division.

9. A suturing device for inner and outer woven bags according to claim 7, wherein the lifting driving part comprises an upper support plate (71), a lower support plate (72), a second motor (73) and a second installation box (74); the upper supporting plate (71) is fixedly arranged at the driving end of the translation driving part, a third cylinder (75) is arranged below the upper supporting plate (71), and the lower supporting plate (72) is fixedly arranged at the piston end of the third cylinder (75); the second motor (73) is fixedly arranged below the lower supporting plate (72), and the second mounting box (74) is fixedly connected with an output shaft of the second motor (73); a clamping disc III (76) is mounted on two sides of the mounting box II (74) through elastic components, a rotary disc II (77) is arranged on the mounting box II (74) on one side of the clamping disc III (76), a double-shaft motor is mounted in the mounting box II (74), and two shaft ends of the double-shaft motor are fixedly connected with the two rotary discs II (77) in a one-to-one correspondence manner; and a second rotating arm (78) is fixedly arranged on the circumferential surface of the second rotating disk (77), and a fourth clamping disk (79) which can be in contact with the third clamping disk (76) is fixedly arranged at the tail end of the second rotating arm (78).

10. The sewing device for inner and outer woven bags according to claim 1, wherein the conveying mechanism (2) comprises two electric slide rails (21) symmetrically installed below the frame body (1), a first installation box (22) installed on a slide block of the electric slide rails (21), a first motor (23), a first rotating disc (24), a first rotating arm (25), a first clamping disc (26) and a second clamping disc (27); the first mounting box (22) is fixedly mounted on the sliding block, the first motor (23) is fixedly mounted on one side of the first mounting box (22), and an output shaft of the first motor (23) penetrates through the first mounting box (22) and extends into the first mounting box (22); the first rotating disc (24) is fixedly arranged on an output shaft of the first motor (23), the first rotating arm (25) is fixedly arranged on one side of the first rotating disc (24), the first clamping disc (26) is fixedly arranged at the tail end of the first rotating arm (25), and the first mounting box (22) is fixedly provided with a second clamping disc (27) which can be in contact with the first clamping disc (26); the rack body (1) above the electric slide rail (21) is provided with a long slot hole (28), the second clamping disk (27) is positioned in the long slot hole (28), and the top end face of the second clamping disk (27) is flush with the top end face of the rack body (1).

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