CN111348257A

CN111348257A - Clamping and conveying mechanism for packaging bag

Info

Publication number: CN111348257A
Application number: CN202010243841.0A
Authority: CN
Inventors: 汪东; 钟庆柱; 倪合青
Original assignee: ANHUI XINYUAN PACKAGING TECHNOLOGY CO LTD
Current assignee: ANHUI XINYUAN PACKAGING TECHNOLOGY CO LTD
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-30

Abstract

The invention aims to provide a clamping and conveying mechanism of a packaging bag, wherein the packaging bag is consistent in strip outlet direction and simple in structure, two groups of clamping and conveying belts are arranged on a rack at the same height, a swing arm connected with the clamping and conveying belts is in rotating fit with the rack through a rotating shaft, the rotating shaft is driven by power to rotate to drive the two groups of clamping and conveying belts to synchronously swing to a clamping and conveying position close to each other or a bag inlet position away from each other, the strip surfaces of the two groups of clamping and conveying belts are parallel to each other and are positioned in a vertical plane during the clamping and conveying position, the adjacent strip surfaces at the position form a strip-shaped constraint area, and the length direction of the strip-shaped constraint area is consistent. Two sets of clamp send the area and swing round the pivot in the vertical plane through the swing arm, for swinging in the horizontal plane round pinch plate one end tip, the arm of force is little, the motion is steady, and two sets of clamp send the synchronous swing of area moreover, guarantee that the central line that two sets of clamps sent the area is fixed unchangeable all the time, follow the terminal wrapping bag sack that comes out of clamp send the area like this and can be accurate in getting into follow-up mechanism by mistake.

Description

Clamping and conveying mechanism for packaging bag

Technical Field

The invention relates to the technical field of packaging machinery, in particular to a clamping and conveying mechanism for a packaging bag.

Background

After the material adding or filling process of the packaging bag is finished at the material loading position, the packaging bag needs to be transported to a downstream clamping and conveying mechanism, the clamping and conveying mechanism clamps the bag opening of the packaging bag and conveys the packaging bag to a subsequent mechanism, and the subsequent process finishes operations such as sealing, labeling and the like. The scheme such as make up is the sealing mode commonly used, for guaranteeing the reliability of sealing, generally implements the folding formula with sack department, implements the sewing in banded coincide region, and the wrapping bag mouth is irregular, and when sealing, the wrapping bag is probably blocked at the machine of sealing, causes the production line stagnation, more seriously can lead to sealing the machine and damage, and how to guarantee that the sack region is in the same order neat and level is very important, also is difficult.

A chinese patent entitled "bag holding mechanism for arranging bag openings" (application No. 201811165159.3) discloses the following technical solutions: when monitoring that the packaging bags reach the preset positions, the telescopic cylinder contracts to enable the rotary clamping bases to be far away from each other, when monitoring that one corner of each packaging bag close to the rotary clamping base enters the position between the rotary clamping bases, the telescopic cylinder resets, the packaging bags are clamped tightly by the second belt, the motor works to enable the first belt to drive the synchronous belt pulley to rotate through the transmission case so as to drive the second belt to move, so that the bag mouths of the packaging bags are clamped and sorted by the second belt, conveyed to the sealing machine to be sealed, and sorted by clamping the bag mouths by the second belt. In the above scheme, the one end of the clamping seat forms a running fit with the base plate through the rotating shaft, the other end swings in the plane around the rotating shaft to enable the included angle between the two clamping seats to change, the two parts of the clamping seat are respectively driven by the independent telescopic cylinders, namely, the two telescopic cylinders are arranged, on one hand, the cost is high, meanwhile, a larger arrangement space is needed, on the other hand, the more important aspect is that the two clamping seats do swinging motion around one end, the mutual far away and close motion of the clamping seats cannot guarantee complete synchronization, when the second belt clamp clamps the packaging bag, the position of the center line of the two second belts is uncertain, when the packaging bag is clamped to the tail end, the belt outlet direction of the packaging bag is uncertain, and the subsequent sealing process cannot be completed smoothly.

Disclosure of Invention

The invention aims to provide a clamping and conveying mechanism of a packaging bag, which is consistent in the strip discharging direction of the packaging bag and simple in structure.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a pinch mechanism of wrapping bag, equal altitude is provided with two sets of clamps in the frame and send the area, swing arm that links to each other with the clamp area constitutes normal running fit through pivot and frame, the axle center direction of pivot is unanimous with the advancing area direction of wrapping bag, power drive pivot rotates and drives two sets of clamp and send the synchronous swing of area to the clamp that is close to each other and send the position or the bag position of advancing that keeps away from each other, when the clamp send the position, two sets of clamps send the area face and be parallel to each other and all be located the vertical plane, the area face that this position department closed on mutually constitutes banded restraint regional, the length direction in banded restraint region is unanimous with the.

Among the above-mentioned scheme, two sets of clamps send the area and are swung in the vertical plane round the pivot through the swing arm, for swinging in the horizontal plane round pinch plate one end tip, the arm of force is little, and the motion is steady, and two sets of clamps send the synchronous swing of area moreover, guarantee that the central line that two sets of clamps sent the area is fixed unchangeable all the time, follow the terminal wrapping bag sack that comes out of pinch area like this and just can be accurate in the follow-up mechanism of entering of mistake.

Drawings

Fig. 1 and 2 are schematic diagrams of the overall structure of a pinch mechanism;

fig. 3 is a partially enlarged schematic view of fig. 1.

Detailed Description

As shown in fig. 1-3, a pinch mechanism for packaging bags, wherein two groups of pinch belts 21 are arranged on a rack 10 at equal height, a swing arm 35 connected with the pinch belts 21 is in running fit with the rack 10 through a rotating shaft 31, the direction of the shaft core of the rotating shaft 31 is consistent with the feeding direction of the packaging bags, the power-driven rotating shaft 31 rotates to drive the two groups of pinch belts 21 to swing to a mutually close pinch position or a mutually far bag feeding position, the belt surfaces of the two groups of pinch belts 21 are parallel to each other and are both located in a vertical plane when in the pinch position, the adjacent belt surfaces at the position form a belt-shaped restriction area, and the length direction of the belt-shaped restriction area is consistent with the feeding direction of the packaging bags. At the beginning, the power drives the rotating shaft 31 to rotate, the two groups of clamping and conveying belts 21 are far away from each other, after the bag mouth of the packaging bag enters between the two groups of clamping and conveying belts 21, the power drives the two groups of clamping and conveying belts 21 to approach and clamp the bag mouth, and the clamping and conveying belts 21 advance forwards to drive the packaging bag to advance forwards synchronously. Two sets of clamp send area 21 through swing arm 35 around pivot 31 in the vertical plane wobbling, for swinging in the horizontal plane around pinch plate one end tip, the arm of force is little, the motion is steady, and two sets of clamps send area 21 synchronous oscillation moreover, guarantee that the central line that two sets of clamps sent area 21 is fixed unchangeable all the time, just can be accurate in the follow-up mechanism of mistake entering from the wrapping bag sack that pinch area 21 end came out like this.

Preferably, the rotating shaft 31 forms an axial limiting and circumferential rotation fit with a bearing seat 33 fixed on the frame 10 through a bearing, one end of a swing arm 35 is connected with the rotating shaft 31, the other end of the swing arm is connected with the clamp belt 21, teeth 34 are arranged at the end part of the swing arm 35 connected with the rotating shaft 31, the teeth 34 on the two rotating shafts 31 are meshed for transmission, and the power drives the rotating shaft 31 to rotate to drive the two swing arms 35 to rotate around respective shaft cores. By the engagement of the teeth 34 and the teeth 34, the two swing arms 35 are ensured to rotate synchronously, that is, the swing angles relative to the center line are the same, and the structure can realize the synchronous rotation of the two swing arms 35 only by arranging one set of driving mechanism.

Specifically, the driving mechanism is arranged as follows: an air cylinder 36 is arranged between the two swing arms 35, the cylinder body of the air cylinder 36 is hinged with one swing arm 35, the piston rod is hinged with the other swing arm 35 through a fisheye bearing 37, and the shaft core of the hinged shaft is arranged in parallel with the shaft core of the rotating shaft 31. Two ends of the cylinder 36 are respectively hinged with the middle sections of the two swing arms 35, one cylinder 36 drives the two swing arms 35 to act, the space between the two swing arms 35 is reasonably utilized to arrange the cylinder 36, and the structure is compact.

Further, the swing arm 35 is arranged above the clamp conveying belt 21, a clamp plate 22 is fixedly connected to the lower end of the swing arm 35, the length direction of the clamp plate 22 is consistent with that of the clamp conveying belt 21, belt wheels 23 are arranged at two ends of the lower plate surface of the clamp plate 22, and the clamp conveying belt 21 and the belt wheels 23 are in belt transmission fit.

A base plate 11 is arranged on the frame 10, the surface of the base plate 11 is positioned in a horizontal plane, a transmission case 12 is fixed on the base plate 11, an input shaft of the transmission case 12 is connected with a motor 13, and an output shaft 14 protrudes to the lower part of the base plate 11 and is connected with a belt wheel 23 through a universal shaft 15. Two belt wheels 23 are arranged in each group, the universal shaft 15 only needs to be connected with one belt wheel 23 arranged close to the universal shaft 15, the belt wheel 23 can be regarded as a driving wheel, the other belt wheel 23 is a driven wheel, a belt transmission is formed between the driving wheel and the driven wheel by a pinch belt 21, and the connection mode of the two outer groups of belt wheels 23 and the universal shaft 15 is the same.

Two mounting plates 16 with vertical surfaces are arranged on the lower surface of the base plate 11 at intervals along the length direction of the rotating shaft 31, the bearing seat 33 is fixed on the mounting plates 16, namely the series of components are hung below the base plate 11, and in order to increase the connection stability of the clamping plates 22, two groups of swing arms 35 are correspondingly arranged.

Further, the swing arms 35 are in a multi-stage folded plate shape, the distance between two ends of the two swing arms 35 in the same group is small, the distance between the two ends of the two swing arms is large, and the air cylinder 36 is arranged in the position with the large distance between the two ends of the air cylinder 36 due to specific certain size and length of the air cylinder 36.

Claims

1. The utility model provides a mechanism is sent in clamp of wrapping bag which characterized in that: the equal altitude in frame (10) is provided with two sets of clamps and send area (21), swing arm (35) that link to each other with the clamp area (21) constitute normal running fit through pivot (31) and frame (10), the axle center direction of pivot (31) is unanimous with the advancing tape direction of wrapping bag, power drive pivot (31) rotate drive two sets of clamps send area (21) synchronous oscillation to the clamp that is close to each other and send the position or the bag position of advancing of keeping away from each other, when the clamp sent the position, two sets of clamps send area (21) band face and be parallel to each other and all be located the vertical plane, the band face that this position department closes on mutually constitutes banded restraint region, banded restraint region's length direction is unanimous with the advancing tape direction of wrapping bag.

2. The pinch mechanism for the envelope as claimed in claim 1, wherein: the rotating shaft (31) forms axial limiting and circumferential rotation matching with a bearing seat (33) fixed on the rack (10) through a bearing, one end of a swing arm (35) is connected with the rotating shaft (31), the other end of the swing arm is connected with the clamping conveying belt (21), teeth (34) are arranged at the end part of the swing arm (35) connected with the rotating shaft (31), the teeth (34) on the two rotating shafts (31) are meshed for transmission, and the power driving rotating shaft (31) rotates to drive the two swing arms (35) to rotate around respective shaft cores.

3. The pinch mechanism for bags of claim 2, wherein: an air cylinder (36) is arranged between the two swing arms (35), the cylinder body of the air cylinder (36) is hinged with one swing arm (35), the piston rod is hinged with the other swing arm (35) through a fisheye bearing (37), and the shaft core of the hinged shaft is arranged in parallel with the shaft core of the rotating shaft (31).

4. The bag gripping and feeding mechanism according to claim 3, wherein: swing arm (35) set up in the clamp send the top of area (21), the lower extreme fixedly connected with splint (22) of swing arm (35), the length direction of splint (22) with press from both sides send area (21) unanimous, splint (22) lower plate face's both ends position department is provided with band pulley (23), press from both sides send area (21) and band pulley (23) constitution belt drive cooperation.

5. The pinch mechanism for the envelope as claimed in claim 1, wherein: a base plate (11) is arranged on the frame (10), the surface of the base plate (11) is positioned in a horizontal plane, a transmission case (12) is fixed on the base plate (11), an input shaft of the transmission case (12) is connected with a motor (13), and an output shaft (14) protrudes to the lower part of the base plate (11) and is connected with a belt wheel (23) through a universal shaft (15).

6. The bag gripping and feeding mechanism according to claim 5, wherein: two mounting plates (16) with the plate surfaces positioned on the vertical plane are arranged on the lower plate surface of the base plate (11) at intervals along the length direction of the rotating shaft (31), the bearing seat (33) is fixed on the mounting plates (16), and two groups of swing arms (35) are correspondingly arranged.

7. The bag gripping and feeding mechanism according to claim 4, wherein: the swing arms (35) are in a multi-stage folded plate shape, the distance between two ends of the same group of two swing arms (35) is small, the distance between the two ends of the same group of two swing arms is large, and the air cylinder (36) is arranged in the position with the large distance between the two ends of the same group of two swing arms.