CN117163395A - Opening overturning device for packaging bag - Google Patents

Abstract

The invention discloses a bag opening overturning device of a packaging bag, which comprises an outer frame, wherein a main shaft is rotatably arranged on the outer frame, a bag opening mounting seat is fixedly arranged in the middle of the main shaft, a bag opening shaft is rotatably arranged on the bag opening mounting seat, bag opening claws are arranged at two ends of the bag opening shaft, the bag opening shaft is driven to rotate through a bag opening deflection adjusting device, a first swinging clamping device and a second swinging clamping device which are used for tensioning and clamping two ends of the packaging bag are also arranged at two ends of the main shaft, the main shaft is driven to rotate through the main deflection adjusting device, and an opening mechanism which is used for sucking the lower part of a bag opening of the packaging bag and enabling the lower part of the bag opening of the packaging bag to be opened is arranged below the bag opening claw on the outer frame; the device can carry out accurate opening centre gripping with the wrapping bag that the preceding process was carried to upset suit is at the discharge gate, realizes automatic opening bag cover bag, improves machining efficiency.

Description

Opening overturning device for packaging bag

Technical Field

The invention relates to the field of packaging bag conveying, in particular to a bag opening and overturning device for packaging bags.

Background

The packaging bag can effectively help the collection, movement and storage of some articles, has strong isolation capability with the outside, and is widely applied.

The existing packaging bag is usually in a sheet shape with a sealed bag opening after production, and for the subsequent bagging, the bag opening of the packaging bag needs to be opened and kept in an opened state continuously in the conveying process of the packaging bag, and a bag opening and bagging device is described in a publication of patent number 202320112521.0, and comprises a frame and a packaging bag conveying mechanism, and further comprises an upper surface bag sucking mechanism, a lower surface bag sucking mechanism, a bag opening mechanism capable of driving the upper surface bag sucking mechanism and the lower surface bag sucking mechanism to be folded or opened, a translation plate and a bag pulling mechanism, wherein the packaging bag conveying mechanism and the bag pulling mechanism are sequentially arranged on the frame along the conveying direction; the upper surface bag sucking mechanism, the lower surface bag sucking mechanism and the bag opening mechanism are respectively arranged on the translation plate, and are respectively connected with the power output end of the bag opening mechanism in a transmission way; the translation plate is in transmission connection with the power output end of the bag pulling mechanism; the device can control the translation board to move through the bag pulling mechanism and lean on wrapping bag conveying mechanism, open upper surface through the bag opening mechanism like this and inhale bag mechanism and lower surface and inhale bag mechanism, just can ensure that the wrapping bag can be carried to upper surface inhale bag mechanism and lower surface inhale between the bag mechanism, open the mechanism control upper surface and inhale bag mechanism and lower surface and inhale the upset that bag can be accomplished to bag mechanism after folding again, but the wrapping bag can only rectilinear movement after being opened the bag, still need carry out the manual work and take out the wrapping bag and remove the material that connects when the material export is vertical export, can't accomplish good automatic bag opening material that connects.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the utility model provides a bagging-off turning device of opening of wrapping bag, the device can carry out accurate opening centre gripping with the wrapping bag that the preceding process was carried to the upset suit is at the discharge gate, realizes automatic opening bagging-off, improves machining efficiency.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a bagging-off turning device of wrapping bag, includes outer frame, rotate on the outer frame and install the main shaft, main shaft middle part fixed mounting has a bag opening mount pad, it installs a bag opening axle to open to rotate on the bag opening mount pad, open bag axle both ends and install a bag opening claw, it rotates through opening bag deflection adjusting device drive to open the bag axle, main shaft both ends still are equipped with the first swing clamping device and the second swing clamping device at taut clamping wrapping bag both ends, the main shaft rotates through main deflection adjusting device drive, be located the below of opening the bag opening claw on the outer frame and install and draw wrapping bag sack lower part and make its open-ended opening mechanism.

As a preferable scheme, the bag opening deflection adjusting device comprises a bag opening deflection connecting rod fixedly connected with a bag opening shaft, a bag opening linear cylinder is hinged to the bag opening mounting seat, a guide rod of the bag opening linear cylinder is hinged to the bag opening deflection connecting rod, and the bag opening deflection connecting rod drives swing through the bag opening linear cylinder.

As a preferable scheme, the first swing clamping device and the second swing clamping device have the same structure, the first swing clamping device comprises a first clamping installation seat fixedly installed on a main shaft, a first clamping connecting rod is longitudinally installed on the first clamping installation seat in a swing mode, and the swing center of the first clamping connecting rod is perpendicular to the axis of the main shaft; the free end of the first clamping connecting rod is provided with a first bag clamping claw which is opened or closed, the first clamping connecting rod drives the reciprocating deflection through a first linear power device to enable the first bag clamping claw to be close to or far away from two sides of a bag opening of the packaging bag, and the main shaft is provided with a limiting structure for limiting the swinging range of the first clamping connecting rod; the first bag clamping claw drives to open and close to clamp or loosen two sides of a bag opening of the packaging bag through the first opening and closing power device.

As a preferable scheme, the first bag clamping claw comprises a first upper claw and a first lower claw, the first upper claw and the first lower claw are respectively hinged on a first clamping connecting rod, the first upper claw is hinged with a power end of a first opening and closing power device, the first upper claw drives to swing through the first opening and closing power device, a synchronous connecting rod is hinged between the first upper claw and the first lower claw, and the first upper claw drives the first lower claw to swing synchronously through the synchronous connecting rod when swinging.

As a preferable scheme, the main deflection adjusting device comprises a main deflection connecting rod fixedly connected with the main shaft, a supporting seat which is convenient for rotating and installing the main shaft is arranged on the outer frame, a main linear power device is hinged between the main deflection connecting rod and the outer frame, and the main linear power device drives the main deflection connecting rod to swing.

As a preferable scheme, the limiting structure comprises a fixed rod fixedly arranged on the main shaft, and a limiting jacking block which is propped against the outer side of the first clamping connecting rod is arranged on the fixed rod in a threaded manner; one side of the second swing clamping device is also provided with a corresponding limiting structure.

As a preferable scheme, the contact surfaces of the first upper claw and the first lower claw are provided with mutually matched bulges.

As a preferable scheme, two ends of the bag opening shaft are fixedly provided with claw connecting rods, the bag opening claws are arranged on the claw connecting rods, and the claw connecting rods are provided with claw adjusting mechanisms capable of adjusting the heights of the bag opening claws.

As a preferable scheme, the opening mechanism comprises an opening lifting frame which is installed on the outer frame in a lifting sliding manner, an auxiliary adsorption plate is fixedly installed on the opening lifting frame, an opening sucking disc is further installed on the opening lifting frame, an exposing hole which is convenient for exposing the opening sucking disc is formed in the auxiliary adsorption plate, and an opening lifting power device for driving the opening lifting frame to lift is installed on the outer frame.

After the technical scheme is adopted, the invention has the following effects: the bag opening turnover device of the packaging bag comprises an outer frame, a main shaft is rotatably arranged on the outer frame, a bag opening installation seat is fixedly arranged in the middle of the main shaft, a bag opening shaft is rotatably arranged on the bag opening installation seat, bag opening hooks are arranged at two ends of the bag opening shaft, the bag opening shaft is driven to rotate through a bag opening deflection adjusting device, a first swing clamping device and a second swing clamping device which are used for tensioning and clamping two ends of the packaging bag are further arranged at two ends of the main shaft, the main shaft is driven to rotate through the main deflection adjusting device, and an opening mechanism which is used for sucking the lower part of a bag opening of the packaging bag and enabling the lower part of the bag opening of the packaging bag to be opened is arranged below the bag opening hook on the outer frame; firstly, conveying a packaging bag through a previous procedure, then sucking the lower part of a packaging bag opening by an opening mechanism, sucking the upper part of the packaging bag opening by the previous procedure, driving a bag opening shaft to rotate through a bag opening deflection adjusting device after the opening of the packaging bag, then enabling a bag opening hook claw to swing and hook into the opening of the packaging bag, enabling a first swing clamping device and a second swing clamping device to clamp two sides of the packaging bag and tighten the opening of the packaging bag, stopping sucking the lower part of the packaging bag opening by the opening mechanism, and driving a main shaft to rotate by a main deflection adjusting device so that the opening of the packaging bag is upwards sleeved at a material outlet; the device can carry out accurate opening centre gripping with the wrapping bag that the preceding process was carried to upset suit is at the discharge gate, realizes automatic opening bag cover bag, improves machining efficiency.

The bag opening deflection adjusting device comprises a bag opening deflection connecting rod fixedly connected with a bag opening shaft, a bag opening linear cylinder is hinged to the bag opening mounting seat, a guide rod of the bag opening linear cylinder is hinged to the bag opening deflection connecting rod, and the bag opening deflection connecting rod drives the bag opening linear cylinder to swing; the bag opening deflection connecting rod can be controlled to swing through the expansion and contraction of the bag opening linear cylinder, and the bag opening shaft can rotate accordingly, so that the bag opening claw can swing, and the bag opening claw can extend into a bag opening, and the bag opening swing mechanism is simple and reliable in structure and convenient to use.

Because the first swing clamping device and the second swing clamping device have the same structure, the first swing clamping device comprises a first clamping installation seat fixedly installed on the main shaft, a first clamping connecting rod is installed on the first clamping installation seat in a swing mode, and the swing center of the first clamping connecting rod is perpendicular to the axis of the main shaft; the free end of the first clamping connecting rod is provided with a first bag clamping claw which is opened or closed, the first clamping connecting rod drives the reciprocating deflection through a first linear power device to enable the first bag clamping claw to be close to or far away from two sides of a bag opening of the packaging bag, the main shaft is provided with a limiting structure for limiting the swinging range of the first clamping connecting rod, and the first bag clamping claw drives the opening and closing device to open and clamp or loosen the two sides of the bag opening of the packaging bag through a first opening and closing power device; the first clamping connecting rod is driven to swing through the first linear power device, so that the first bag clamping claw can swing effectively, the first opening and closing power device can control the opening and closing of the first bag clamping claw, one side of a packaging bag is clamped effectively, tensioning is carried out, and the first bag clamping claw is matched with the bag opening hook claw to open a bag effectively.

The first bag clamping claw comprises a first upper claw and a first lower claw, the first upper claw and the first lower claw are respectively hinged on the first clamping connecting rod, the first upper claw is hinged with the power end of the first opening and closing power device, the first upper claw is driven to swing through the first opening and closing power device, a synchronous connecting rod is arranged between the first upper claw and the first lower claw, and the first lower claw is driven to swing synchronously through the synchronous connecting rod when the first upper claw swings; therefore, when the first upper claw and the first lower claw are required to be opened, the first upper claw is controlled to swing through the first opening and closing power device, and then the first upper claw can swing synchronously through the synchronous connecting rod, so that the first upper claw and the first lower claw are controlled to be opened and closed through the power device, the cost is saved, and the practicability is improved.

The main deflection adjusting device comprises a main deflection connecting rod fixedly connected with the main shaft, a supporting seat which is convenient for rotating and installing the main shaft is arranged on the outer frame, a main linear power device is hinged between the main deflection connecting rod and the outer frame, and the main linear power device drives the main deflection connecting rod to swing; the main shaft can be rotatably arranged on the outer frame through the supporting shaft, and then the main deflection connecting rod is driven to swing through the linear power device, so that the main shaft can rotate, and the bag opening hook claw, the first swing clamping device and the second swing clamping device which are arranged on the main shaft can effectively deflect, effectively deflect integrally and improve synchronism.

The limiting structure comprises a fixed rod fixedly arranged on the main shaft, and a limiting jacking block which is propped against the outer side of the first clamping connecting rod is arranged on the fixed rod in a threaded manner; one side of the second swing clamping device is also provided with a corresponding limiting structure; therefore, after the first upper claw and the first lower claw on the first clamping connecting rod clamp one side of the packaging bag, the first clamping connecting rod can effectively prop against the outer side of the first clamping connecting rod when the first clamping connecting rod deflects, so that the first clamping connecting rod is prevented from excessively large in deflection amplitude, the packaging bag is damaged, and the bag opening efficiency is guaranteed.

The contact surfaces of the first upper claw and the first lower claw are provided with mutually matched bulges; therefore, the clamping force for clamping the two sides of the packaging bag can be effectively improved, and the clamping firmness is ensured.

Because the two ends of the bag opening shaft are fixedly provided with the claw connecting rods, the bag opening claw is arranged on the claw connecting rods, and the claw connecting rods are provided with claw adjusting mechanisms capable of adjusting the height of the bag opening claw; the packaging bags in a certain height range can be accurately hooked and opened through the hook claw adjusting mechanism in a conveying manner, so that flexibility of the hook claw is improved, and the using effect is improved.

The opening mechanism comprises an opening lifting frame which is arranged on the outer frame in a lifting and sliding manner, an auxiliary adsorption plate is fixedly arranged on the opening lifting frame, an opening sucking disc is further arranged on the opening lifting frame, an exposing hole which is convenient for exposing the opening sucking disc is formed in the auxiliary adsorption plate, and an opening lifting power device for driving the opening lifting frame to lift is arranged on the outer frame; the opening lifting power device can control the opening lifting frame to ascend, the opening sucker firstly contacts the lower part of the packaging bag, then the auxiliary adsorption plate continuously ascends to contact the packaging bag, the opening lifting frame descends, and after the descending is finished, the opening sucker downwards pulls open the bag opening, so that the bag opening accuracy is ensured.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a left side view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of a bag opening claw according to an embodiment of the present invention;

FIG. 5 is a top view of a spindle according to an embodiment of the present invention

FIG. 6 is an enlarged view of a portion of FIG. 1A;

in the accompanying drawings: 1. an outer frame; 2. a main shaft; 3. opening a bag mounting seat; 4. a bag opening shaft; 5. opening a bag hook claw; 6. a bag opening deflection connecting rod; 7. a straight line cylinder for opening the bag; 8. a first clamping mount; 9. a first clamping link; 10. the second clamping installation seat; 11. a second clamping link; 12. a first bag clamping claw; 13. a second bag clamping claw; 14. a first linear cylinder; 15. a first cylinder hinged plate; 16. a second cylinder hinge plate; 17. a second linear cylinder; 18. a first upper jaw; 19. a first lower jaw; 20. a synchronous connecting rod; 21. an extension link; 22. a first opening and closing cylinder; 23. a second opening and closing cylinder; 24. a second upper jaw; 25. a second lower jaw; 26. a main deflection connecting rod; 27. a support base; 28. a main straight cylinder; 29. a fixed rod; 30. a limiting top block; 31. a protrusion; 32. a claw connecting rod; 33. a bar-shaped through hole; 34. sliding the bar-shaped hole; 35. an adjusting screw; 36. an opening lifting frame; 37. an auxiliary adsorption plate; 38. an opening sucker; 39. exposing the hole; 40. an opening lifting cylinder; 41. an opening fixing seat; 42. a ventilation rod; 43. a guide spring; 44. a guide rod.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

As shown in fig. 1 to 6, a bag opening turnover device for packaging bags comprises an outer frame 1, a main shaft 2 is rotatably mounted on the outer frame 1, a bag opening mounting seat 3 is fixedly mounted in the middle of the main shaft 2, a bag opening shaft 4 is rotatably mounted on the bag opening mounting seat 3, bag opening claws 5 are mounted at two ends of the bag opening shaft 4, the bag opening shaft 4 is driven to rotate through bag opening deflection adjusting devices, a first swing clamping device and a second swing clamping device for tensioning and clamping two ends of the packaging bags are further arranged at two ends of the main shaft 2, the main shaft 2 is driven to rotate through the main deflection adjusting devices, and an opening mechanism for sucking the lower parts of bag openings of the packaging bags and enabling the lower parts of the bag openings to be opened is mounted below the bag opening claws 5 on the outer frame 1.

In this embodiment, the bag opening deflection adjusting device includes a bag opening deflection connecting rod 6 fixedly connected with the bag opening shaft 4, a bag opening linear cylinder 7 is hinged on the bag opening mounting seat 3, a guide rod of the bag opening linear cylinder 7 is hinged with the bag opening deflection connecting rod 6, and the bag opening deflection connecting rod 6 drives swing through the bag opening linear cylinder 7; the bag opening deflection connecting rod 6 can be driven to effectively deflect through the extension of the guide rod of the bag opening linear cylinder 7, the bag opening shaft 4 fixed with the bag opening deflection connecting rod 6 can also effectively rotate, so that the bag opening hook claw 5 can swing around the center of the bag opening shaft 4, the bag opening hook claw 5 can swing to hook the bag opening of a packaging bag, the bag opening linear cylinder 7 can swing along with the bag opening linear cylinder 7 when the bag opening deflection connecting rod 6 is driven to swing, and the flexibility can be effectively improved through the hinging of the bag opening linear cylinder 7.

As shown in fig. 3, the first swing clamping device and the second swing clamping device have the same structure, the first swing clamping device comprises a first clamping installation seat 8 fixedly installed on the main shaft 2, a first clamping connecting rod 9 is installed on the first clamping installation seat 8 in a swing mode, and the swing center of the first clamping connecting rod 9 is perpendicular to the axis of the main shaft 2; the free end of the first clamping connecting rod 9 is provided with a first bag clamping claw 12 which is opened or closed, the first clamping connecting rod 9 drives the reciprocating deflection through a first linear power device to enable the first bag clamping claw 12 to be close to or far away from two sides of a bag mouth of a packaging bag, the main shaft 2 is provided with a limiting structure for limiting the swinging range of the first clamping connecting rod 9, and the first bag clamping claw 12 drives the opening and closing of the two sides of the bag mouth of the packaging bag through a first opening and closing power device to clamp or release the two sides of the bag mouth of the packaging bag; in order to accurately open the bag mouth of the packaging bag, after the bag opening hook claw 5 is hooked, the two sides of the bag mouth are tensioned, so that the bag mouth is effectively tensioned and opened, and thus the bag mouth is still accurately opened when the packaging bag is overturned, the first clamping connecting rod 9 is driven by the first linear power device to lean against one side of the bag mouth of the packaging bag, then the first clamping claw 12 is driven by the first opening and closing power device to clamp, and then the first clamping connecting rod 9 is far away from one side of the bag mouth, and the second swinging clamping device is also similar, so that the bag mouth of the packaging bag can be effectively opened, the second swinging device comprises a second clamping installation seat 10, a second clamping connecting rod 11 is arranged on the second clamping installation seat 10 in a swinging manner, the free end of the second clamping connecting rod 11 is also provided with a second bag clamping claw 13 which is opened or closed, the second clamping connecting rod 11 is driven to swing back and forth by the second linear power device, and the second clamping claw 13 is driven to open and close by the second opening and closing power device; the first linear power device comprises a first linear cylinder 14, a first cylinder hinge plate 15 and a second cylinder hinge plate 16 are fixedly mounted on the main shaft 2, the first linear cylinder 14 is hinged to the first cylinder hinge plate 15, a guide rod of the first linear cylinder 14 is hinged to the upper portion of the first clamping connecting rod 9, the first linear cylinder 14 is convenient to drive the first clamping connecting rod 9 to swing, the second linear power device also comprises a second linear cylinder 17, the second cylinder hinge plate 16 is hinged to the second linear cylinder 17, and a guide rod of the second linear cylinder 17 is hinged to the upper portion of the second clamping connecting rod 11.

As shown in fig. 6, the first bag clamping jaw 12 includes a first upper jaw 18 and a first lower jaw 19, the first upper jaw 18 and the first lower jaw 19 are respectively hinged on the first clamping connecting rod 9, the first upper jaw 18 is hinged with a power end of a first opening and closing power device, the first upper jaw 18 is driven to swing by the first opening and closing power device, a synchronous connecting rod 20 is hinged between the first upper jaw 18 and the first lower jaw 19, and the first lower jaw 19 is driven to swing synchronously by the synchronous connecting rod 20 when the first upper jaw 18 swings; an extension connecting rod 21 is arranged on the first lower claw 19, one end of a synchronous connecting rod 20 is hinged with a first upper claw 18, the other end of the synchronous connecting rod 20 is hinged with the extension connecting rod 21, a sliding strip-shaped hole 34 is arranged on the extension connecting rod 21, so that the hinged part of the extension connecting rod 21 and the first lower claw 19 can be in sliding hinge connection, the first opening and closing power device comprises a first opening and closing cylinder 22, the first opening and closing cylinder 22 is hinged to the middle part of the first clamping connecting rod 9, after a guide rod of the first opening and closing cylinder 22 is hinged with the first upper claw 18, when the first upper claw 18 swings upwards, the synchronous connecting rod 20 swings upwards, and the extension connecting rod 21 swings upwards, and the first lower claw 19 swings downwards, so that the opening and closing of the first upper claw 18 and the first lower claw 19 are controlled by a power device, the cost is saved, and the practicability is improved; the second opening and closing power device comprises a second opening and closing cylinder 23, the second opening and closing cylinder 23 is hinged to the middle of the second clamping connecting rod 11, a guide rod of the second opening and closing cylinder 23 is hinged to a second upper claw 24, and a synchronous connecting rod 20 is arranged between the second upper claw 24 and a second lower claw 25, so that the second upper claw 24 and the second lower claw 25 can be controlled to swing, and the practicability is improved.

As shown in fig. 1 and 2, the main deflection adjusting device comprises a main deflection connecting rod 26 fixedly connected with the main shaft 2, a supporting seat 27 which is convenient for rotating and installing the main shaft 2 is arranged on the outer frame 1, a main linear power device is hinged between the main deflection connecting rod 26 and the outer frame 1, and the main linear power device drives the main deflection connecting rod 26 to swing; the main linear power device comprises a main linear air cylinder 28, the main linear air cylinder 28 is vertically hinged on the outer frame 1, a guide rod of the main linear air cylinder 28 is hinged with a main deflection connecting rod 26, so that the main deflection connecting rod 26 can swing through the extension and retraction of the guide rod, the main shaft 2 can rotate, the bag opening hook claw 5, the first clamping connecting rod 9 and the second clamping connecting rod 11 which are arranged on the main shaft 2 can effectively deflect, and the main linear air cylinder 28 can swing along with the main deflection connecting rod 26, and the whole deflection is realized, so that the synchronism is improved.

As shown in fig. 3, the limiting structure comprises a fixed rod 29 fixedly installed on the main shaft 2, and a limiting top block 30 which is used for supporting the outer side of the first clamping connecting rod 9 is installed on the fixed rod 29 in a threaded manner; one side of the second swing clamping device is also provided with a corresponding limiting structure; therefore, when the first clamping connecting rod 9 and the second clamping connecting rod 11 swing outwards, the first clamping connecting rod and the second clamping connecting rod are propped against the corresponding limiting jacking blocks 30, so that the bag opening of the packaging bag is prevented from being damaged due to overlarge swing amplitude, and the bag opening accuracy is ensured.

In this embodiment, the contact surfaces of the first upper jaw 18 and the first lower jaw 19 are provided with mutually matched protrusions 31, and the second upper jaw 24 and the second lower jaw 25 are also provided with corresponding protrusions 31, so that the clamping degree is improved when clamping two sides of the bag mouth of the packaging bag, and the clamping firmness is ensured.

As shown in fig. 4, two ends of the bag opening shaft 4 are fixedly provided with a claw connecting rod 32, the bag opening claw 5 is arranged on the claw connecting rod 32, and the claw connecting rod 32 is provided with a claw adjusting mechanism capable of adjusting the height of the bag opening claw 5; the hook claw adjusting device comprises two strip-shaped through holes 33 formed in the hook claw connecting rod 32, adjusting screws 35 in threaded connection with the bag opening hook claw 5 are arranged in the strip-shaped through holes 33, the height position of the bag opening hook claw 5 can be adjusted by unscrewing or tightening the adjusting screws 35, the bag opening can be accurately hooked by the adjustment of packaging bags in a certain conveying height range, flexibility of the hook claw is improved, and using effect is improved.

As shown in fig. 6, the opening mechanism comprises an opening lifting frame 36 which is installed on the outer frame 1 in a lifting and sliding manner, an auxiliary suction plate 37 is fixedly installed on the opening lifting frame 36, an opening suction cup 38 is also installed on the opening lifting frame 36, an exposing hole 39 which is convenient for exposing the opening suction cup 38 is arranged on the auxiliary suction plate 37, and an opening lifting power device for driving the opening lifting frame 36 to lift is installed on the outer frame 1; the opening lifting power device comprises an opening lifting cylinder 40, the opening holy sword cylinder is vertically and fixedly arranged on an opening fixing seat 41, the opening fixing seat 41 is fixedly arranged on an outer frame 1, an air ventilation rod 42 penetrating through an opening lifting frame 36 and being connected with an opening sucker 38 is arranged on the opening fixing seat 41, the air ventilation rod 42 is connected with an air suction system to facilitate suction of the opening sucker 38, a guide spring 43 is further arranged between the opening lifting frame 36 and the opening fixing seat 41, a guide rod 44 is arranged in the guide spring 43, the guide effect is effectively achieved, the exposure hole 39 can ensure that the opening sucker 38 can accurately suck a packaging bag when the opening lifting power device is used, the bag mouth of the packaging bag can also uniformly contact with an auxiliary suction plate 37, the packaging bag is effectively supported, and the bag opening effect is guaranteed to be good.

The working principle of the embodiment is as follows: firstly, the packaging bag is conveyed through a previous process, then the opening lifting cylinder 40 drives the opening lifting frame 36 to ascend, the opening sucking disc 38 contacts the bottom of the packaging bag opening until the auxiliary sucking plate 37 contacts the bottom of the packaging bag opening, the opening lifting frame 36 descends, the opening sucking disc 38 pulls the bottom of the packaging bag opening, then the guide rod of the opening straight cylinder 7 stretches out, the opening deflection connecting rod 6 swings downwards, so that the opening hook claw 5 swings downwards, the opening hook claw 5 stretches into the opening, then the guide rods of the first straight cylinder 14 and the second straight cylinder 17 retract, the first clamping connecting rod 9 and the second clamping connecting rod 11 are close to two sides of the packaging bag, then the first opening and closing cylinder 22 and the second opening and closing cylinder 23 control the first clamping jaw 12 and the second clamping jaw 13 to clamp two sides of the packaging bag opening, the opening sucking disc 38 stops sucking, the first clamping connecting rod 9 and the second clamping connecting rod 11 are far away from two sides of the packaging bag, the packaging bag opening is tensioned, then the guide rod of the main straight cylinder 28 swings downwards, the main deflection connecting rod 26 swings downwards, the main shaft 2 starts to rotate, the first clamping jaw 12, the second clamping jaw 13 and the opening hook claw 5 clamp the packaging bag, the first clamping jaw 13 and the opening hook claw 5 clamp the packaging bag upwards, and the first clamping jaw 13 and the second clamping the packaging bag after the packaging bag downwards, and the first clamping jaw 13 clamping the packaging bag, and the packaging bag opening, and the next bag clamping the bag, and opening the next step, and opening.

The above examples are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and adaptations of the technical solution of the present invention should and are intended to fall within the scope of the present invention as defined in the claims.

Claims (9)

1. The utility model provides a bagging-off turning device that opens of wrapping bag, includes outer frame, its characterized in that: the automatic packaging machine is characterized in that a main shaft is rotatably mounted on the outer frame, a bag opening mounting seat is fixedly mounted in the middle of the main shaft, a bag opening shaft is rotatably mounted on the bag opening mounting seat, bag opening claws are mounted at two ends of the bag opening shaft, the bag opening shaft is driven to rotate through bag opening deflection adjusting devices, a first swing clamping device and a second swing clamping device which are used for tensioning and clamping two ends of a packaging bag are further arranged at two ends of the main shaft, the main shaft is driven to rotate through the main deflection adjusting devices, and an opening mechanism which is used for sucking the lower portion of a bag opening of the packaging bag and is arranged below the bag opening claws on the outer frame.

2. A bag opening and turning device for a packaging bag as claimed in claim 1, wherein: the bag opening deflection adjusting device comprises a bag opening deflection connecting rod fixedly connected with a bag opening shaft, a bag opening linear cylinder is hinged to the bag opening mounting seat, a guide rod of the bag opening linear cylinder is hinged to the bag opening deflection connecting rod, and the bag opening deflection connecting rod drives swing through the bag opening linear cylinder.

3. A bag opening and turning device for a packaging bag as claimed in claim 2, wherein: the first swing clamping device and the second swing clamping device have the same structure, the first swing clamping device comprises a first clamping installation seat fixedly installed on the main shaft, a first clamping connecting rod is installed on the first clamping installation seat in a swing mode, and the swing center of the first clamping connecting rod is perpendicular to the axis of the main shaft; the automatic packaging bag opening and closing device is characterized in that the free end of the first clamping connecting rod is provided with a first bag clamping claw which is opened or closed, the first clamping connecting rod drives the reciprocating deflection through a first linear power device to enable the first bag clamping claw to be close to or far away from two sides of a bag opening of a packaging bag, a limiting structure which limits the swinging range of the first clamping connecting rod is arranged on the main shaft, and the first bag clamping claw drives the opening and closing device to open and clamp or loosen the two sides of the bag opening of the packaging bag through a first opening and closing power device.

4. A bag opening and turning device for a packaging bag as claimed in claim 3, wherein: the first bag clamping claw comprises a first upper claw and a first lower claw, the first upper claw and the first lower claw are respectively hinged to a first clamping connecting rod, the first upper claw is hinged to a power end of a first opening and closing power device, the first upper claw is driven to swing through the first opening and closing power device, a synchronous connecting rod is hinged between the first upper claw and the first lower claw, and the first upper claw is driven to swing synchronously through the synchronous connecting rod when swinging.

5. The bag opening and turning device of claim 4, wherein: the main deflection adjusting device comprises a main deflection connecting rod fixedly connected with the main shaft, a supporting seat which is convenient for rotating and installing the main shaft is arranged on the outer frame, a main linear power device is hinged between the main deflection connecting rod and the outer frame, and the main linear power device drives the main deflection connecting rod to swing.

6. The bag opening and turning device of claim 5, wherein: the limiting structure comprises a fixed rod fixedly arranged on the main shaft, and a limiting jacking block which props against the outer side of the first clamping connecting rod is arranged on the fixed rod in a threaded manner; one side of the second swing clamping device is also provided with a corresponding limiting structure.

7. The bag opening and turning device of claim 6, wherein: the contact surfaces of the first upper claw and the first lower claw are provided with mutually matched protrusions.

8. The bag opening and turning device of claim 7, wherein: the bag opening shaft is characterized in that two ends of the bag opening shaft are fixedly provided with claw connecting rods, bag opening claws are arranged on the claw connecting rods, and the claw connecting rods are provided with claw adjusting mechanisms capable of adjusting the heights of the bag opening claws.

9. A bag opening and turning device of a packaging bag as claimed in any one of claims 1 to 8, wherein: the opening mechanism comprises an opening lifting frame which is installed on the outer frame in a lifting sliding manner, an auxiliary adsorption plate is fixedly installed on the opening lifting frame, an opening sucker is further installed on the opening lifting frame, an exposing hole which is convenient for exposing the opening sucker is formed in the auxiliary adsorption plate, and an opening lifting power device which drives the opening lifting frame to lift is installed on the outer frame.