CN212862057U - Clamping hand assembly of powder material packaging bag - Google Patents

Abstract

The utility model relates to a clamping hand component of powder material packaging bag, which is arranged on a support frame, an arc-shaped feed inlet with a downward opening is also arranged on the support frame, a bag mouth fixing device comprises a first clamping hand and a second clamping hand, the first clamping hand and the second clamping hand are respectively arranged outside the arc-shaped feed inlet, and the first clamping hand and the second clamping hand are respectively hinged with the support frame; the sack cover of wrapping bag is in on the arc feed inlet periphery, first card hand is used for right the sack with the arc feed inlet compresses tightly, second card hand is used for with the sack with the arc feed inlet is sealed. The utility model discloses adopt first card hand earlier to carry out the pretension, then withdraw from the mechanism that the wrapping bag was transported to last process, the rethread second card hand seals sack and arc feed inlet, has avoided the powder material to fill the powder escape of in-process, has avoided the interference of second card hand and the mechanism that transports the wrapping bag simultaneously.

Description

Clamping hand assembly of powder material packaging bag

Technical Field

The utility model relates to an automatic feeding equipment technical field, concretely relates to card hand subassembly of powder material wrapping bag.

Background

Along with the development of intelligent manufacturing, the equipment of the production line tends to be automated more and more so as to overcome the problems of high labor cost, great harm to the health of operators by part of production procedures, unstable working efficiency and product quality caused by the difference of experience of personnel and the like in the traditional manufacturing industry. The prior art of the bag feeding machine has the problems that the equipment interference between the executing mechanisms of adjacent procedures is not easy to solve, and the powder escapes along with the air in the filling process due to the insufficient tightness of the bag opening in the powder filling process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a powder material wrapping bag's card hand subassembly, it pretensions earlier, reseals the feed inlet of sack and powder, has avoided powder material to fill the powder escape of in-process, has avoided the interference of this device and the mechanism that the wrapping bag was transported to last process simultaneously.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a clamping hand assembly of a powder material packaging bag is arranged on a support frame, an arc-shaped feeding hole with a downward opening is further formed in the support frame, a bag opening fixing device comprises a first clamping hand and a second clamping hand, the first clamping hand and the second clamping hand are respectively arranged on the outer side of the arc-shaped feeding hole, and the first clamping hand and the second clamping hand are respectively hinged with the support frame; the sack cover of wrapping bag is in on the arc feed inlet periphery, first card hand is used for right the sack with the arc feed inlet compresses tightly, second card hand is used for with the sack with the arc feed inlet is sealed.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, first card hand is two sets of at least, and is two sets of first card hand symmetry sets up the arc feed inlet outside, first card hand with the outside of arc feed inlet cooperatees.

Further, be equipped with the eighth telescoping cylinder on the hand of first card, the eighth telescoping cylinder is perpendicular the outside of arc feed inlet sets up, the stiff end of eighth telescoping cylinder pass through the connecting piece with support frame fixed connection, the expansion end of eighth telescoping cylinder with first card hand fixed connection, when the eighth telescoping cylinder extends, first card hand with the laminating in the outside of arc feed inlet.

Furthermore, a positioning piece is fixedly arranged on the first clamping hand, one end of the positioning piece is connected with the first clamping hand, and the other end of the positioning piece is matched with the arc-shaped feeding hole.

Further, the positioning piece is an elastic positioning pin.

Furthermore, the second card hand is two sets of at least, and is two sets of second card hand symmetry sets up the arc feed inlet outside, two sets of second card hand respectively with the outside of arc feed inlet cooperatees.

Further, the second card hand includes arc card hand, the outside of arc card hand pass through the connecting piece with the support frame is articulated, the inboard of arc card hand with the periphery of arc feed inlet cooperatees.

Further, the second clamping hand further comprises a seventh telescopic cylinder, the fixed end of the seventh telescopic cylinder is hinged to the support frame, the movable end of the seventh telescopic cylinder is hinged to the outer side of the arc-shaped clamping hand, and when the seventh telescopic cylinder extends, the arc-shaped clamping hand is attached to the outer side of the arc-shaped feeding hole.

The utility model has the advantages that: the utility model discloses a card hand subassembly for transport the last process and come the wrapping bag of cover on arc feed inlet to fix, seal, carry out the pretension to sack and arc feed inlet through first card hand earlier, fix a position the sack on arc feed inlet, then withdraw from the mechanism that the wrapping bag was carried to last process, the rethread second card hand seals sack and arc feed inlet, prevents to cause the material to overflow because of the leakproofness is bad at the in-process that fills the powder material for the wrapping bag. The utility model discloses adopt first card hand earlier to carry out the pretension, then withdraw from the mechanism that transports the wrapping bag, the rethread second card hand seals sack and arc feed inlet, has avoided the powder material to fill the powder escape of in-process, has avoided the interference of second card hand and the mechanism that transports the wrapping bag simultaneously.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 2 according to the present invention;

fig. 5 is a schematic view of a second embodiment of the gripper of the present invention;

FIG. 6 is a schematic view of a third embodiment of the gripper of the present invention;

FIG. 7 is an enlarged view of the portion C of FIG. 2 according to the present invention;

fig. 8 is a schematic view of the gripper assembly of the present invention;

fig. 9 is a schematic view of a second clamping arm of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the bag opening device comprises a support frame, 101, a bag storage area, 1011, a limiting plate, 1012, an elastic element, 2, a bag feeding sucker, 201, a first telescopic cylinder, 202, a second telescopic cylinder, 203, a sucker frame, 3, a bag opening sucker, 301, a third telescopic cylinder, 4, a gripper, 401, an upper pressing piece, 402, a lower pressing piece, 403, a sixth telescopic cylinder, 404, a cushion pad, 405, a mounting frame, 5, a first clamping hand, 501, an eighth telescopic cylinder, 502, a positioning piece, 6, a second clamping hand, 601, an arc-shaped clamping hand, 602, a seventh telescopic cylinder, 603, a pull rod, 604, a connecting rod, 7, an arc-shaped feed inlet, 8, a connecting rod mechanism, 801, a fourth telescopic cylinder, 802, a first pull rod, 803, a second pull rod, 804, a connecting shaft, 805 and a fifth telescopic cylinder.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The automatic bag feeding machine of the full-automatic packaging machine shown in fig. 1 mainly comprises a bag taking device for powder material packaging bags, a bag taking gripper mechanism, a gripper connecting rod mechanism and a bag opening fixing device. The bag opening device mainly structurally comprises a support frame 1, and an upper bag sucker 2, a bag opening sucker 3, a hand grip 4, a first clamping hand 5, a second clamping hand 6 and an arc-shaped feed inlet 7 which are respectively arranged on the support frame 1, wherein the upper bag sucker 2 is arranged downwards and can perform lifting movement and horizontal movement, a bag storage area 101 is arranged below the upper bag sucker 2, the bag opening sucker 3 is arranged upwards and is just opposite to one end of the upper bag sucker 2, the hand grip 4 is arranged close to the bag opening sucker 3 through a connecting rod mechanism 8, and the hand grip 4 can rotate under the driving of the connecting rod mechanism 8; arc feed inlet 7 sets up down, first card hand 5 second card hand 6 sets up respectively the arc feed inlet 7 outside, tongs 4 are used for the sack cover of opening on the arc feed inlet 7, first card hand 5 is used for right the sack with 7 pretensions of arc feed inlet, second card hand 6 be used for with the sack with arc feed inlet 7 is sealed, tongs 4 first card hand 5 second card hand 6 mutually noninterfere.

The components of the automatic bag feeding machine of the full-automatic packaging machine are described in detail.

The bag taking device for the powder material packaging bags comprises a support frame 1 and an upper bag sucker 2 arranged on the upper portion of the support frame 1, a bag opening sucker 3 arranged at the bottom of the support frame 1, and the upper bag sucker 2 and the bag opening sucker 3 are arranged oppositely. The support frame 1 is also provided with a driving mechanism, under the control of a control system, the driving mechanism drives the bag feeding sucker 2 to move up and down and horizontally, and the driving mechanism drives the bag opening sucker 3 to move up and down; the bottom of support frame 1 still is equipped with sack storage area 101, sack storage area 101 just right go up bag sucking disc 2, sack storage area 101 with it sets up side by side to open bag sucking disc 3 along the horizontal migration direction of going up bag sucking disc 2. When going up bag sucking disc 2 and doing lifting movement, can follow improve the height of settlement after absorbing the wrapping bag in bag storage area 101, it can be in when carrying out horizontal migration to go up bag sucking disc 2 bag storage area 101 with open the top of bag sucking disc 3 and carry out reciprocating motion, open the bag sucking disc and rise to the settlement height, hold the wrapping bag bottom and then move down, because simultaneously go up bag sucking disc 2 and sucked the top of wrapping bag, can open the sack of wrapping bag this moment.

As shown in fig. 2 to 3, the driving mechanism includes a first lifting mechanism and a translation mechanism, the first lifting mechanism includes a first telescopic cylinder 201, and a fixed end of the first telescopic cylinder 201 is installed on an upper portion of the support frame 1; the translation mechanism comprises a second telescopic cylinder 202 and a suction cup frame 203, the second telescopic cylinder 202 is perpendicular to the first telescopic cylinder 201, a fixing portion of the second telescopic cylinder 202 is fixedly connected with a movable end of the first telescopic cylinder 201, a movable portion of the second telescopic cylinder 202 is fixedly connected with the suction cup frame 203, and the bag feeding suction cup 2 is fixedly mounted on the suction cup frame 203. The bag feeding suckers 2 are arranged in the embodiment, so that the mouth part and the tail part of the bag can be sucked in the bag sucking process, and the bag sucking accuracy is improved. The first telescopic cylinder 201 controls the upper bag sucker 2 to lift, when a new bag needs to be sucked, the first telescopic cylinder 201 controls the upper bag sucker 2 to descend, and controls the upper bag sucker 2 to ascend and reset after the bag is sucked; the second telescopic cylinder 202 is used for horizontally moving the bag to the operation range of the bag opening suction cup 3 and the gripper 4 after the bag is sucked, and horizontally moving and resetting after the gripper 4 takes the bag away.

As shown in fig. 4, the driving mechanism further includes a second lifting mechanism, the bag opening suction cup 3 is connected to the support frame 1 through the second lifting mechanism, the second lifting mechanism includes a third telescopic cylinder 301, the third telescopic cylinder 301 is vertically disposed, a fixed end of the third telescopic cylinder 301 is disposed on the support frame 1, and the bag opening suction cup 3 is fixedly mounted on a movable end of the third telescopic cylinder 301. The third cylinder 301 opens the bag sucked in place, and pulls the bag opening by sucking the upper surface of the bag by the upper bag suction cup 2 and sucking the lower surface of the bag by the bag opening suction cup 3.

The bag feeding sucker 2 and the bag opening sucker 3 are both vacuum suckers. The vacuum chuck has flexibility, can be well attracted with the packaging bag, and does not damage the packaging bag.

The border of sack storage area 101 is equipped with limiting plate 1011, the length and width size of sack storage area 101 matches with the size of wrapping bag for it is effective spacing to carry out the wrapping bag, and the position that makes the subsequent handling snatch the sack is accurate. A plurality of vertically arranged elastic elements 1012 are arranged in the bag storage area 101, and elastic pieces or compression springs can be preferably used for the elastic elements 1012 to provide vertical elastic force. The bottom of the elastic element 1012 is fixedly connected with the support frame 1, the top of the elastic element 1012 is in contact with the packaging bag, and the top of the elastic element 1012 is used for storing the packaging bag to be taken. When the bag feeding sucker 2 moves downwards to suck the packaging bag, the elastic element 1012 can play a role in buffering, so that the bag feeding sucker 2 is prevented from being frequently collided with the packaging bag for a long time to cause abrasion to the bag feeding sucker, and the bag feeding sucker 2 can be attached to the surface of the packaging bag more tightly under the action of elasticity. When the bag is large, the elastic member 1012 compresses; when the bags are gradually reduced, the elastic element 1012 stretches to move the bags upwards, so as to ensure that the sucking discs 2 on the bags suck the bags in place.

As shown in fig. 2 to 3, the link mechanism 8 is disposed on the support frame 1, the link mechanism 8 includes a fourth telescopic cylinder 801, a first pull rod 802, and a second pull rod 803, one end of the fourth telescopic cylinder 801 is hinged to the support frame 1, the other end of the fourth telescopic cylinder 801 is hinged to one end of the first pull rod 802, and a rotation plane of the first pull rod 802 is parallel to a telescopic direction of the fourth telescopic cylinder 801; the other end of the first pull rod 802 is hinged to one end of the second pull rod 803 through a hinge, the hinge is hinged to the support frame 1, the first pull rod 802 can rotate relative to the support frame 1, and the rotation plane of the second pull rod 803 is perpendicular to the rotation plane of the first pull rod 802; the other end of the second pull rod 803 is fixedly provided with a hand grip 4.

After the gripper 4 grips the bag with an opening, the link mechanism 8 is driven by the fourth telescopic cylinder 801 to stretch, the first pull rod 802 and the second pull rod 803 rotate along a hinged point, the bag is turned over by 90 degrees and is changed from a horizontal direction to a vertical direction, and the opening of the bag is sleeved on the periphery of the arc-shaped feed opening 7.

As shown in fig. 3, the first pull rod 802 and the second pull rod 803 are respectively hinged to the support frame 1 through a connecting shaft 804, the first pull rod 802 is arranged perpendicular to the connecting shaft 804, one end of the connecting shaft 804 is fixedly connected to an end of the first pull rod 802, and the other end of the connecting shaft 804 is hinged to the support frame 1; the end of the second pull rod 803 is hinged to the connecting shaft 804, the rotation plane of the second pull rod 803 is perpendicular to the rotation plane of the first pull rod 802, and the plane of the rotation plane of the second pull rod 803 is coplanar with the axial direction of the connecting shaft 804.

In order to avoid interference between the gripper 4 and the first clamping arm 5 and the second clamping arm 6 in the subsequent process, the second pull rod 803 can be rotated at a certain angle along the hinge point in the process that the gripper 4 sends the bag to the arc-shaped feed opening 7. The following technical means can be adopted for implementation.

As shown in fig. 3, a fifth telescopic cylinder 805 is disposed on the connecting shaft 804, a fixed end of the fifth telescopic cylinder 805 is hinged to the connecting shaft 804, a telescopic end of the fifth telescopic cylinder 805 is hinged to a middle section of the second pull rod 803, and when the fifth telescopic cylinder 805 is telescopic, the second pull rod 803 and the gripper 4 thereon can be driven to rotate along a hinged point, so as to avoid devices in subsequent processes and prevent interference between the devices. The fifth telescopic cylinder 805 may also be arranged in a reverse direction, specifically, a telescopic end of the fifth telescopic cylinder 805 is hinged to the connecting shaft 804, and a fixed end of the fifth telescopic cylinder 805 is hinged to the middle section of the second pull rod 803, so that the same effect can be achieved. The fifth telescopic cylinder 805 drives the second pull rod 803 to rotate along the hinge point by a certain angle in the process that the bag is sent to the arc-shaped feed opening 7 by the gripper 4, so that interference between the gripper 4 and the first clamping arm 5 and the second clamping arm 6 is prevented.

In order to increase the grasping reliability of the packaging bag, two second pull rods 803 are arranged on the connecting shaft 804, the two second pull rods 803 are arranged in a coplanar manner and do not interfere with each other, and one fifth telescopic cylinder 805 is correspondingly arranged on each second pull rod 803. Since the feeding direction of the packing bag is close to the first pull rod 802 and the feeding direction is close to the second pull rod 803, the opening direction of the handle 4 faces the first pull rod 802 before feeding starts.

The principle of the gripper connecting rod mechanism is as follows: after the gripper 4 grabs the packaging bag, the fourth telescopic cylinder 801 extends to push the first pull rod 802 to rotate, and as the first pull rod 802 and the second pull rod 803 are hinged with the support frame 1 together through the connecting shaft 804, and the angle of the first pull rod 802 relative to the second pull rod 803 is fixed in the circumferential direction of the connecting shaft 804, the first pull rod 802 drives the second pull rod 803 to rotate along the circumferential direction of the connecting shaft 804 when rotating, so that the packaging bag is sent to the next process; in the feeding process, in order to prevent the second pull rod 803 from interfering with equipment in the subsequent process, the fifth telescopic cylinder 805 extends or contracts to enable the second pull rod 803 to rotate perpendicular to the first pull rod 802 and avoid the equipment in the subsequent process; after feeding is completed, the grippers are released to release the packaging bag, the fifth telescopic cylinder 805 contracts or extends, the fourth telescopic cylinder 801 contracts at the same time, the second pull rod 803 and the first pull rod 802 are driven to reset for standby, and a feeding reciprocating process is completed.

As shown in fig. 4, the bag taking hand grip mechanism includes a mounting frame 405 and two hand grips 4 disposed in parallel on the mounting frame 405, and the mounting frame 405 is fixedly mounted on an end of the second pull rod 803. In this embodiment, two second pull rods 803 are arranged in parallel, so that four grippers 4 are arranged in a total, the four grippers 4 are distributed in a rectangular shape, and when gripping the packaging bag, each two grippers 4 grip two ends of an open edge of the opened packaging bag, so that the four grippers 4 grip the packaging bag and effectively fix the opened packaging bag, so that the opening of the packaging bag is always kept in a fixed opening state in the process of being sent to the next procedure, and the opening of the packaging bag is sleeved on the periphery of the arc-shaped feed port 7. The gripper 4 comprises an upper pressing piece 401, a lower pressing piece 402 and a sixth telescopic cylinder 403 which are matched with each other, a fixed part of the sixth telescopic cylinder 403 is fixedly connected with the mounting rack 405, the upper pressing piece 401 and/or the lower pressing piece 402 are/is hinged with a movable part of the sixth telescopic cylinder 403, and when the movable end of the sixth telescopic cylinder 403 performs telescopic motion, the upper pressing piece 401 and/or the lower pressing piece 402 are/is driven to move relatively. Various embodiments are possible depending on the type of the sixth telescopic cylinder 403.

For example, fig. 4 shows a first embodiment of the hand grip, the sixth telescopic cylinder 403 is a finger cylinder, and the upper pressing member 401 and the lower pressing member 402 serve as a pair of clamping fingers of the finger cylinder. As shown in figure 4, the finger cylinder adopts a Y-shaped clamping jaw, a piston rod of the swinging clamping jaw inside the Y-shaped clamping jaw is provided with an annular groove, and because a finger trunnion is connected with the annular groove, fingers can move simultaneously and center automatically, and the final constant grabbing torque is ensured.

As shown in fig. 5, in a second embodiment of the gripper 4, when the sixth telescopic cylinder 403 is a common single-rod electric cylinder, hydraulic cylinder or air cylinder, the upper pressing member 401 and the lower pressing member 402 are arranged side by side, an end of the upper pressing member 401 is fixedly mounted on the mounting bracket 405, a movable portion of the sixth telescopic cylinder 403 is fixedly connected to the lower pressing member 402, and when the sixth telescopic cylinder 403 performs telescopic motion, the lower pressing member 402 is driven to move relative to the upper pressing member 401.

Fig. 6 shows a third embodiment of the hand grip 4, which is different from the second embodiment only in that a sixth telescopic cylinder 403 is mounted on an upper pressing member 401, and one end of a lower pressing member 402 is fixedly mounted on a mounting frame 405, and the other technical features are the same. Specifically, the upper pressing member 401 and the lower pressing member 402 are arranged side by side, the end portion of the lower pressing member 402 is fixedly mounted on the mounting frame 405, the movable portion of the sixth telescopic cylinder 403 is fixedly connected to the upper pressing member 401, and when the sixth telescopic cylinder 403 performs telescopic motion, the upper pressing member 401 is driven to move relative to the lower pressing member 402.

In any of the three embodiments, a buffer pad 404 is fixedly disposed on the opposite side of the upper pressing member 401 and the lower pressing member 402, and the buffer pad 404 is preferably a rubber pad.

The bag taking and grabbing mechanism plays a role in reliably clamping the packaging bag which is opened in the previous process in the feeding process, releases the packaging bag after the packaging bag is fed in place, and then resets to stand by. When the sixth telescopic cylinder 403 drives the upper pressing piece 401 and the lower pressing piece 402 to move oppositely, the upper pressing piece 401 and the lower pressing piece 402 are gradually closed, and the bag opening of the packaging bag is pressed tightly, so that the purpose of taking materials is achieved; the two parallel grippers 4 are respectively used for gripping two edges of the opened bag opening, so that the bag opening is kept in an opened state all the time in the process of conveying the packaging bag to the next procedure, and the bag opening is conveniently connected with the subsequent procedures; after the packaging bags are conveyed to the right position under the action of the link mechanism of the automatic bag feeding machine, the sixth telescopic cylinder 403 drives the upper pressing piece 401 and the lower pressing piece 402 to move back to back, the upper pressing piece 401 and the lower pressing piece 402 are gradually opened to release the bag mouths of the packaging bags, and then the gripper mechanism resets to stand by. Snatch the in-process of wrapping bag material, blotter 404 plays the cushioning effect, and it wears to the sack when pressing down piece 401 and pressing down piece 402 matched with to prevent to go up. The gripper mechanism is simple in structure, realizes accurate gripping of the opened packaging bag, can effectively fix the bag opening of the packaging bag, and can accurately provide the packaging bag keeping the opening state for the next procedure.

As shown in fig. 7, sack fixing device sets up on support frame 1, and 7 openings of arc feed inlet set up down on support frame 1, card hand subassembly includes first card hand 5 and second card hand 6, first card hand 5 second card hand 6 sets up respectively the 7 outsides of arc feed inlet, just first card hand 5 second card hand 6 respectively with support frame 1 is articulated. The first clamping hand 5 and the second clamping hand 6 are not interfered with each other, for example, when the first clamping hand 5 and the second clamping hand 6 are hinged to the top end of the support frame, the position where the first clamping hand 5 is matched with the arc-shaped feed opening 7 is slightly higher than the position where the second clamping hand 6 is matched with the arc-shaped feed opening 7, that is, the positions where the first clamping hand 5 and the second clamping hand 6 are respectively matched with the arc-shaped feed opening 7 are not on the same plane, so as to prevent mutual interference and influence the tightness of the second clamping hand 6 to the bag opening; the sack cover of wrapping bag is in on 7 peripheries of arc feed inlet, first card hand 5 is used for right the sack with arc feed inlet 7 compresses tightly, second card hand 6 be used for with the sack with arc feed inlet 7 is sealed.

In this embodiment, the first clamping hands 5 are at least two groups, and two groups of the first clamping hands 5 are symmetrically arranged on the outer side of the arc-shaped feed opening 7, and the first clamping hands 5 are matched with the outer side of the arc-shaped feed opening 7. When two sets of first card hand 5 with when the arc feed inlet 7 cooperatees, can fix the sack of wrapping bag on the arc feed inlet 7 jointly in both sides to increase the reliability for the sack location.

In this embodiment, be equipped with eighth telescoping cylinder 501 on the first jack 5, eighth telescoping cylinder 501 is perpendicular the outside of arc feed inlet 7 sets up, the stiff end of eighth telescoping cylinder 501 pass through the connecting piece with the top fixed connection of support frame 1, the expansion end of eighth telescoping cylinder 501 with first jack 5 fixed connection, when eighth telescoping cylinder 501 extends, first jack 5 with the outside laminating of arc feed inlet 7, works as when eighth telescoping cylinder 501 contracts, first jack 5 relieve with the cooperation of arc feed inlet 7 resets and awaits the orders. The eighth telescopic cylinder 501 controls the first clamping hand 5 to pre-tighten and position the bag and the arc-shaped feed opening 7, so that the bag can be further fixed by the second clamping hand 6 after the gripper 4 retreats.

In this embodiment, a positioning element 502 is fixedly arranged on the first clamping arm 5, one end of the positioning element is connected with the first clamping arm 5, and the other end of the positioning element is matched with the arc-shaped feeding hole. The positioning member 502 is cylindrical and the fit between the positioning member and the arc-shaped feed opening 7 is point-to-surface, which is more reliable than surface-to-surface. Preferably, the positioning piece 502 is an elastic positioning pin, which can effectively fix the bag opening and buffer the first clamping hand 5 and the arc-shaped feed opening 7 in the matching process, so that the positioning piece 502 is prevented from wearing the bag opening and causing impact damage to the equipment.

As shown in fig. 8, the number of the second clamping hands 6 is at least two, the second clamping hands 6 are symmetrically arranged on the outer side of the arc-shaped feed opening 7, and the second clamping hands 6 are respectively matched with the outer side of the arc-shaped feed opening 7. The second clamping hand 6 comprises an arc-shaped clamping hand 601, a third pull rod 603 and a seventh telescopic cylinder 602, an arc-shaped surface is arranged on the arc-shaped clamping hand 601, the arc-shaped surface is matched with the arc-shaped feed inlet 7, the arc-shaped clamping hand 601 is fixedly connected with one end of the third pull rod 603, and the other end of the third pull rod 603 is hinged with the support frame 1; the stiff end of seventh telescoping cylinder 602 with support frame 1 is articulated, the expansion end of seventh telescoping cylinder 602 with third pull rod 603 or arc card hand 601 is articulated, when seventh telescoping cylinder 602 extends, arc card hand 601 with the laminating of the outside of arc feed inlet 7. Two sets of second card hand 6 with when the arc feed inlet 7 matches, can with the sack of wrapping bag with arc feed inlet 7 seals.

As shown in fig. 8 and 9, the second clamping arm 6 includes an arc-shaped clamping arm 601, the outer side of the arc-shaped clamping arm 601 is hinged to the support frame 1 through a connecting member, and the inner side of the arc-shaped clamping arm 601 is matched with the periphery of the arc-shaped feed port 7. The shape and the size of the arc-shaped clamping hand 601 are both adaptive to those of the arc-shaped feed inlet 7, so that the sealing performance is improved. The two arc-shaped clamping hands 601 are matched and can surround the arc-shaped feeding hole 7 for a circle.

In this embodiment, as shown in fig. 9, the second clamping handle 6 includes two third pull rods 603 arranged in parallel, one end of each third pull rod 603 is hinged to the support frame 1, the other end of each third pull rod 603 is fixedly connected to the end of the arc-shaped clamping handle 601, and two ends of the arc-shaped clamping handle 601 are respectively fixedly connected to the two third pull rods 603.

The second clamping arm 6 further comprises a connecting rod 604, the connecting rod 604 is perpendicular to the third pull rod 603, two ends of the connecting rod 604 are fixedly connected with the third pull rod 603, and the movable end of the seventh telescopic cylinder 602 is hinged to the connecting rod 604.

The two third pull rods 603 are not collinear with the hinge point of the support frame 1, and the hinge point of the seventh telescopic cylinder 602 is not collinear with the hinge point of the support frame 1.

In order to enable the arc-shaped surface of the arc-shaped clamping handle 601 to be better attached to the arc-shaped feed inlet 7 in the rotating process, the third pull rod 603 bends towards the arc-shaped feed inlet 7, and the connecting rod 604 is fixedly connected with the bent part of the third pull rod 603.

A buffer strip is fixedly arranged in the arc-shaped surface of the arc-shaped clamping hand 601, and the shape of the buffer strip is matched with that of the arc-shaped feed inlet 7. The buffer strip plays a role in providing buffer for the arc-shaped clamping hand 601, and meanwhile, the sealing performance between the bag opening and the arc-shaped feeding hole 7 can be improved.

In this embodiment, according to actual needs, the first telescopic cylinder 201, the second telescopic cylinder 202, the third telescopic cylinder 301, the fourth telescopic cylinder 801, the fifth telescopic cylinder 805, the sixth telescopic cylinder 403, the seventh telescopic cylinder 602, and the eighth telescopic cylinder 501 are any one or a combination of several electric cylinders, hydraulic cylinders, or pneumatic cylinders.

The working process is as follows:

in this embodiment, each telescopic cylinder is controlled by the controller, and each telescopic cylinder may adopt a hydraulic cylinder, an air cylinder, or an electric cylinder.

The bag feeding sucker 2 descends to suck a bag under the driving of the first telescopic cylinder 201, and then translates towards the direction of the gripper 4 under the driving of the second telescopic cylinder 202; after the bag is translated above the bag opening sucker 3, the bag opening sucker 3 is driven by the third telescopic rod to ascend and suck the lower surface of the bag opening, the bag opening sucker 3 descends to pull the bag opening open, and then the lower pressing piece 402 of the gripper 4 moves under the driving of the sixth telescopic cylinder 403 to grab the opened bag opening; under the driving action of the link mechanism 8, the gripper 4 drives the bag to rotate anticlockwise, the bag is changed from horizontal to vertical, the bag opening is turned over by 90 degrees and sleeved on the outer side of the bottom of the arc-shaped feed port 7, and at the moment, the eighth telescopic cylinder 501 drives the first clamping hand 5 to pre-tighten and position the bag opening and the arc-shaped feed port 7; then the gripper 4 is reset, the seventh telescopic cylinder 602 drives the second clamping hand 6 to seal and tightly hold the bag opening and the arc-shaped feed opening 7, the automatic bag feeding process is completed, and the feeding of the next process can be started at the moment; in the bag feeding rotation and the returning rotation of the gripper 4, the fifth telescopic cylinder 805 drives the second pull rod 803 to avoid the positions interfering with the first clamping hand 5 and the second clamping hand 6 by telescopic driving, so as to prevent the gripper 4 from interfering with the first clamping hand 5 and the second clamping hand 6. This equipment has realized automatic going up the bag, gets the bag, send the bag accuracy, and arc feed inlet 7 laminates with the sack better, and second card hand 6 seals sack and feed inlet, prevents that the material from spilling over.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. The clamping hand assembly for the powder material packaging bag is arranged on a support frame (1), and an arc-shaped feeding hole (7) with a downward opening is further formed in the support frame (1), and is characterized by comprising a first clamping hand (5) and a second clamping hand (6), wherein the first clamping hand (5) and the second clamping hand (6) are respectively arranged on the outer side of the arc-shaped feeding hole (7), and the first clamping hand (5) and the second clamping hand (6) are respectively hinged with the support frame (1); an elastic positioning pin is fixedly arranged on the first clamping hand (5), one end of the elastic positioning pin is connected with the first clamping hand (5), and the other end of the elastic positioning pin is matched with the arc-shaped feeding hole (7); the sack cover of wrapping bag is in on arc feed inlet (7) periphery, first card hand (5) are used for right the sack with arc feed inlet (7) compress tightly, second card hand (6) be used for with the sack with arc feed inlet (7) are sealed.

2. The powder material packaging bag clamping hand assembly according to claim 1, wherein the number of the first clamping hands (5) is at least two, the two first clamping hands (5) are symmetrically arranged on the outer side of the arc-shaped feeding hole (7), and the first clamping hands (5) are matched with the outer side of the arc-shaped feeding hole (7).

3. The powder material packaging bag clamping hand assembly according to claim 1, wherein an eighth telescopic cylinder (501) is arranged on the first clamping hand (5), the eighth telescopic cylinder (501) is perpendicular to the outer side of the arc-shaped feeding hole (7), the fixed end of the eighth telescopic cylinder (501) is fixedly connected with the supporting frame (1) through a connecting piece, the movable end of the eighth telescopic cylinder (501) is fixedly connected with the first clamping hand (5), and when the eighth telescopic cylinder (501) extends, the first clamping hand (5) is attached to the outer side of the arc-shaped feeding hole (7).

4. The powder material packaging bag clamping hand assembly according to claim 1, wherein the number of the second clamping hands (6) is at least two, the two second clamping hands (6) are symmetrically arranged outside the arc-shaped feeding hole (7), and the two second clamping hands (6) are respectively matched with the outer side of the arc-shaped feeding hole (7).

5. The powder material packaging bag clamping hand assembly according to claim 1 or 4, wherein the second clamping hand (6) comprises an arc-shaped clamping hand (601), the outer side of the arc-shaped clamping hand (601) is hinged with the support frame (1) through a connecting piece, and the inner side of the arc-shaped clamping hand (601) is matched with the periphery of the arc-shaped feeding hole (7).

6. The powder material packaging bag clamping hand assembly according to claim 5, wherein the second clamping hand (6) further comprises a seventh telescopic cylinder (602), the fixed end of the seventh telescopic cylinder (602) is hinged to the support frame (1), the movable end of the seventh telescopic cylinder (602) is hinged to the outer side of the arc-shaped clamping hand (601), and when the seventh telescopic cylinder (602) extends, the arc-shaped clamping hand (601) is attached to the outer side of the arc-shaped feeding hole (7).

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