CN221022598U - Pre-folding assembly of paper bag bottom closing device - Google Patents

Abstract

The utility model discloses a pre-turning assembly of a paper bag bottom closing device, which is characterized by comprising a frame, wherein a rotating shaft which is positioned in front of the front bottom closing assembly along the paper bag conveying direction is rotatably arranged on the frame, a swinging hook which swings back and forth along the paper bag conveying direction and a blowing nozzle which swings synchronously with the swinging hook are arranged on the rotating shaft, the blowing nozzle is connected with an air source and is used for continuously swinging a front turning surface towards the bag bottom direction at the moment that the swinging hook turns the front turning surface towards the bag bottom direction, the front turning surface is blown to swing towards the bag bottom direction, the pre-turning of the front turning surface can be realized through the structure, a paper beating rod can smoothly enter the lower part of the front turning surface to turn the paper beating rod and press the paper beating rod downwards to realize bottom closing, the turning angle of the front turning surface is larger, and the bottom closing success rate is improved.

Description

Pre-folding assembly of paper bag bottom closing device

Technical Field

The utility model relates to the technical field of paper bag machine production equipment, in particular to a pre-turning assembly of a paper bag bottom closing device.

Background

Square bottom paper bags are widely used in daily life, and paper bag production has fully entered mechanization. The square bottom paper bag needs to be closed at the bottom of the bag in the production and processing process; the prior patent (CN 202222118556.3) of the applicant is that the front folding surface and the rear folding surface of the paper bag which is subjected to indentation and is coated with glue can be folded through the front and rear bottom folding components to complete bottom folding; however, in the actual use process, when the paper beating rod of the front bottom closing assembly turns over the front folding surface of the bag bottom, the phenomenon that the front folding surface is not lifted along a pre-stamped crease or the gap between the front folding surface and the conveying belt is too small, so that the paper beating rod cannot be smoothly inserted below the front folding surface, the folding failure of the front folding surface is caused, the paper bag bottom closing is affected, and for a thick paper bag, because the paper is thicker, if the pre-folding angle of the folding surface is too small, the paper is easy to turn back to a direction far away from the bag bottom under the action of the elasticity and the gravity of the paper, so that the front folding surface is not folded in place; the present application therefore proposes a structure for solving the problems of the prior patents.

Disclosure of utility model

In order to solve the problems, the utility model provides the pre-folding assembly of the paper bag bottom folding device, which can realize the pre-folding of the front folding surface, is convenient for a paper beating rod to smoothly enter below the front folding surface to fold the paper beating rod, and is compacted to realize bottom folding, so that the success rate of bottom folding is improved.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a paper bag closes a subassembly of turning over in advance of end device, includes the frame, and it sets up before the frame closes end subassembly along paper bag direction of delivery before being located, including rotating the pivot that sets up in the frame, be provided with pendulum hook and air cock in the pivot, pendulum hook and air cock can follow paper bag direction of delivery reciprocal synchronous swing under the drive of pivot, the air cock is connected with the air supply for turn over before blowing and turn over a book towards bag end direction.

Through the pendulum hook can make the front turnover face perk and turn over to bag bottom direction, and the cooperation blows the mouth, can make the turnover angle of turnover face bigger, turns over the effect better.

The utility model is further provided that one end of the swing hook far away from the rotating shaft is provided with a guide head which enables the swing hook to be L-shaped.

The utility model is further characterized in that one end of the guide head, which is far away from the swing hook, is provided with a guide surface which is obliquely arranged.

The turnover surface can be smoothly inserted below the front turnover surface through the arrangement of the guide head and the guide surface.

The utility model is further characterized in that the rotating shaft is provided with a connecting frame, and the blowing nozzle is arranged on one side of the connecting frame through the connecting shaft.

The connecting shaft can be used for enabling the blowing nozzle to be rotatably adjusted with the connecting frame, and the blowing angle of the blowing nozzle can be adjusted to adapt to paper bags of different specifications.

The utility model further provides that the blowing nozzles are symmetrically arranged at two sides of the swing hook.

The utility model is further characterized in that a connecting rod is arranged between the rotating shaft and the swing hook, a connecting groove is formed in the connecting rod, and the swing hook can be adjusted up and down through bolts, the connecting groove and the connecting rod.

The relative distance between the swing hook and the paper bag can be adjusted through the arrangement of the connecting groove, so that the paper bag can be better adapted to paper bags of different specifications.

The utility model is further arranged that the blowing nozzle is arranged at the back of the swing hook in the circumferential direction of the rotating shaft in a staggered way.

Through the structure, the interference of the air blowing nozzle and the front turnover surface is avoided, and the deformation influence effect of the turnover surface caused by the air blowing nozzle is avoided.

In summary, the utility model has the following beneficial effects:

the front folding surface of the paper bag can be folded upwards through the pre-folding assembly before the crease marks enter the front folding bottom assembly, so that a larger gap is formed between the front folding surface and the paper bag, and a paper beating rod can smoothly enter the lower part of the front folding surface to fold the paper bag downwards to realize bottom folding; the air blowing nozzle capable of swinging synchronously with the swinging hook can blow the front turnover surface after the swinging hook lifts the front turnover surface, so that a larger acting force is generated to blow the turnover surface towards the bag bottom direction, the turnover angle of the turnover surface is larger, and the phenomenon that the bottom closing is influenced due to too small included angle between the turnover surface and the conveying belt due to the turnover of the turnover surface is avoided.

Drawings

Fig. 1 is a schematic view of the folding of a paper bag.

Fig. 2 is an installation schematic of the present embodiment.

Fig. 3 is a perspective view of the present embodiment.

Reference numerals: 001. a bag bottom; 002. a front turnover surface; 1. a frame; 2. a rotating shaft; 3. a swinging hook; 31. a guide head; 32. a guide surface; 4. an air blowing nozzle; 5. a connecting frame; 6. a connecting rod; 61. a connecting groove; 62. and (5) a bolt.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, this embodiment discloses a pre-folding assembly of a paper bag bottom closing device, through which a front folding surface 002 on a paper bag can be folded along a crease line toward a bag bottom 001 of the paper bag; making it a variation as shown in figure 1.

The paper bag feeding machine comprises a machine frame 1 and a power source, wherein the power source is used for driving a rotating shaft to swing, the machine frame 1 is rotatably provided with a rotating shaft 2 (which can also be used for a rear bottom closing assembly) arranged in front of a front bottom closing assembly along the paper bag conveying direction, the rotating shaft 2 is provided with a swinging hook 3 which swings reciprocally along the paper bag conveying direction and a blowing nozzle 4 which swings synchronously with the swinging hook 3, the blowing nozzle 4 is connected with an air source (not shown in the figure), as shown in fig. 3, the rotating shaft 2 is connected with the swinging hook 3 through a connecting rod 6, the swinging hook 3 is provided with a guide head 31 which enables the swinging hook 3 to be L-shaped, one end of the guide head 31 far away from the rotating shaft 2 is provided with a guide surface 32 which is obliquely arranged, when the rotating shaft 2 drives the swinging hook 3 to swing along the paper bag conveying direction, the paper bag is always in a moving state, and the moving speed of the paper bag is smaller than the linear speed of the swinging hook 3; when the front turnover surface 002 of the paper bag moves to the lower part of the rotating shaft 2, the guide head 31 swings and is inserted below the front turnover surface 002, so that the front turnover surface 002 is turned over along the crease line towards the bag bottom 001 under the drive of the guide head 31 until the rotating shaft 2 stops moving; then, set up in the pendulum hook 3 both sides and connect in the epaxial blowing nozzle 4 of pivot 2 through link 5 can blow in the moment after pivot 2 stops rotating, turn over the face 002 forward to provide a preceding face 002 and continue the effort of turning over to bag end 001 direction, thereby let the face 002 turn over the angle of turning over more greatly, avoided the face to turn over and lead to its and conveyer belt between the too little influence of contained angle and close the end.

Meanwhile, the included angle between the blowing nozzle 4 and the swinging hook 3 is distributed on the rotating shaft 2, so that the blowing nozzle 4 is positioned behind the swinging hook 3 relative to the paper bag, and therefore when the swinging hook 3 is contacted with the front turnover surface 002, the blowing nozzle 4 cannot be contacted with the front turnover surface 002, and deformation of the front turnover surface 002 caused by contact interference with the front turnover surface 002 is avoided.

The connecting frame 5 is arranged on the rotating shaft 2, the blowing nozzle 4 is rotatably arranged on the connecting frame 5, and the fixing of the blowing nozzle 4 is realized through the bolts 62, so that the angle of the blowing nozzle 4 relative to the turnover surface can be conveniently adjusted by a worker, and the blowing effect of the blowing nozzle 4 is better.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.

Claims (7)

1. The utility model provides a paper bag closes a subassembly of turning over in advance of end device, its characterized in that includes frame (1), and it sets up before frame (1) is located before closing end subassembly along paper bag direction of delivery, including rotating pivot (2) that set up on frame (1), be provided with pendulum hook (3) and air cock (4) on pivot (2), pendulum hook (3) and air cock (4) can follow paper bag direction of delivery reciprocal synchronous swing under the drive of pivot (2), air cock (4) are connected with the air supply for turn over face (002) before blowing turns over to bag end (001) direction.

2. The pre-folding assembly of a paper bag bottom closing device according to claim 1, characterized in that one end of the swinging hook (3) far away from the rotating shaft (2) is provided with a guide head (31) which makes the swinging hook take an L shape.

3. A pre-folding assembly of a paper bag bottom closing device according to claim 2, characterized in that the end of the guide head (31) remote from the swing hook (3) is a guide surface (32) arranged obliquely.

4. A pre-folding assembly of a paper bag bottom closing device according to any one of claims 1-3, characterized in that a connecting frame (5) is arranged on the rotating shaft (2), and the air blowing nozzle (4) is arranged on one side of the connecting frame (5) through a connecting shaft.

5. The pre-folding assembly of a paper bag bottom closing device according to claim 1, wherein the blowing nozzles (4) are symmetrically arranged at two sides of the swinging hooks (3).

6. A pre-folding assembly of a paper bag bottom closing device according to any one of claims 1-3, characterized in that a connecting rod (6) is arranged between the rotating shaft (2) and the swinging hook (3), a connecting groove (61) is arranged on the connecting rod (6), and the swinging hook (3) can be adjusted up and down between the connecting groove (61) and the connecting rod (6) through a bolt (62).

7. The pre-folding assembly of the paper bag bottom closing device according to claim 1, wherein the air blowing nozzle (4) is arranged at the back of the swing hook (3) in a staggered manner in the circumferential direction of the rotating shaft (2).