CN212530334U - Packaging bag folding mechanism - Google Patents

Abstract

The utility model discloses a packaging bag folding mechanism, which comprises a packaging guide rail, wherein a conveying channel for guiding the packaging bags to be conveyed is formed on the packaging guide rail; the guide assembly comprises folding guide members which are respectively arranged at two opposite sides of the conveying channel, and the two folding guide members can move in a reciprocating manner in the directions close to or away from each other so as to be used for pressing the folds at two opposite sides of the packaging bag in the packaging bag folding process to assist in folding; the folding assembly comprises two folding rollers which can move in a reciprocating manner in the directions of approaching to each other and separating from each other and are used for pressing two opposite side surfaces of the packaging bag in the packaging bag folding process so as to fold the packaging bag; during the folding process of the packaging bag, the connecting line between the two folding guide members is vertical to the connecting line between the two folding rollers. Can let product packaging efficiency higher, realize product packaging automation, reduce the human labor cost that manual packaging brought.

Description

Packaging bag folding mechanism

Technical Field

The utility model relates to a equipment for packing especially relates to a wrapping bag mechanism of folding up.

Background

At present, to long banding wrapping bag, after packing the product into, the sack of wrapping bag need be folded again and is the state that the wrapping bag did not expand the use, namely, both sides face all folds along its crease line in the wrapping bag, wholly is the platykurtic, so that follow-up wrapping bag encapsulation, however, this process needs artifical manual both sides face pressure testing to the relative both sides face of wrapping bag and presses folding with the both sides face in addition, can make the whole packing efficiency of product decline like this, also need a large amount of manpower labour cost, and can have the condition of mistake book through artifical folding, the demand of follow-up envelope is not satisfied to folding effect, and, if pack the product when being food or the higher product of sanitary requirement, still there is the risk of secondary pollution.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a packaging bag folding mechanism, which is characterized in that a through folding assembly automatically supports and presses the bag mouth of a packaging bag for folding, and the folding process of the packaging bag is carried out along the crease direction through a guide assembly, thereby improving the folding efficiency of the bag mouth of the packaging bag and reducing the cost.

The purpose of the utility model is realized by adopting the following technical scheme:

a packaging bag folding mechanism comprises a packaging guide rail, wherein a conveying channel for guiding a packaging bag to convey through is formed on the packaging guide rail; the guide assembly comprises folding guide members which are respectively arranged on two opposite sides of the conveying channel, and the two folding guide members can move in a reciprocating manner in the directions close to or away from each other so as to be used for pressing the crease marks on the two opposite sides of the packaging bag in the packaging bag folding process to assist in folding;

the folding assembly comprises two folding rollers which can move in a reciprocating manner in the directions of approaching to each other and separating from each other and are used for pressing two opposite side surfaces of the packaging bag to fold the packaging bag in the folding process of the packaging bag; in the folding process of the packaging bag, a connecting line between the two folding guide members is vertical to a connecting line between the two folding rollers.

Furthermore, one end of the conveying channel forms a feeding end for the packaging bags to enter, and the other end of the conveying channel forms a discharging end for the packaging bags to be output; the guiding assembly and the folding assembly are arranged at the feeding end, a sensor used for sensing that the packaging bag is in place is further arranged at the feeding end, and the sensor is arranged at one side of the guiding assembly and one side of the folding assembly far away from the feeding end.

Further, the guide assembly and the folding assembly may be reciprocally movable in the extending direction of the transport path.

Furthermore, the guide assembly further comprises a guide driving member, and the guide driving member is respectively in driving connection with the two folding guide members so as to simultaneously drive the two folding guide members to approach or separate from each other; the guide driving piece comprises an air claw and two first connecting plate pieces; the gas claw comprises a first claw piece and a second claw piece which can be driven to reciprocate in the directions close to and away from each other, one end of each of the two first connecting plate pieces is connected with the first claw piece and the second claw piece respectively, the other end of each of the two first connecting plate pieces extends towards the direction close to the conveying channel, and the two first connecting plate pieces are respectively arranged on two opposite sides of the conveying channel and are connected with the two folding guide pieces respectively.

Further, the directions of relative movement of the first and second jaw members are parallel to each other with respect to the horizontal direction.

Furthermore, the folding guide member is of a plate-shaped structure, the folding guide member is horizontally arranged, one end of the folding guide member is fixedly installed on the first connecting plate, the other end of the folding guide member extends towards the direction close to the conveying channel, and the thickness of the folding guide member is gradually reduced from one end close to the first connecting plate to one end close to the conveying channel.

Further, the folding assembly further comprises a second connecting plate and a clamping finger cylinder, the second connecting plate is installed between one of the first connecting plate and the folding guide member, and the clamping finger cylinder is installed on the second connecting plate; the clamping finger cylinder comprises a first clamping piece and a second clamping piece, and the two folding rollers are respectively arranged on the first clamping piece and the second clamping piece and can rotate on the first clamping piece and the second clamping piece.

Furthermore, the clamping finger cylinder comprises a release state and a folding state; when the clamping finger cylinder is in a release state, the first clamping piece and the second clamping piece swing towards the direction away from each other to avoid the conveying channel; when the clamping finger cylinder is in a folding state, the first clamping piece and the second clamping piece swing towards the mutually approaching direction so that the two folding rollers are arranged in the conveying channel, and the rotation axes of the two folding rollers are mutually parallel and are vertical to the conveying direction of the conveying channel in the first direction;

when the clamping finger cylinder is in a folding state, the roller surfaces of the two folding rollers respectively abut against the two opposite side surfaces of the two folding guide members.

Further, the surface of the folding roller is coated with anti-skid glue.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the two folding rollers opposite to the folding assembly can be relatively close to the bag opening of the packaging bag to carry out pressure test on the bag opening of the packaging bag in the conveying process of the packaging bag, so that the bag opening of the packaging bag is automatically folded, the complexity of manual operation is saved, the labor cost of manpower is reduced, and the automation degree of packaging equipment is improved;

the guide assembly can carry out pressure test to the crease lines on the two opposite sides of the packaging bag in the folding process of the folding assembly, so that the bag opening of the packaging bag can be folded along the crease line direction in the folding process, the packaging bag state requirement of subsequent packaging equipment is met, the product packaging automation degree is improved, and the error folding probability is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the folding mechanism of the packaging bag of the present invention;

fig. 2 is a second schematic view of the overall structure of the folding mechanism of the packaging bag of the present invention;

FIG. 3 is a schematic view of the folding mechanism of the present invention in step 1;

fig. 4 is a second state diagram of the packaging bag folding mechanism of the present invention in step 1;

FIG. 5 is a schematic view of the folding mechanism of the present invention in one of the states of step 2-3;

FIG. 6 is a second schematic view of the packaging bag folding mechanism of the present invention in a state of step 2-3;

FIG. 7 is a third schematic view of the packaging bag folding mechanism of the present invention in a state of step 2-3;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

fig. 9 is a schematic view of the state of the packaging bag folding mechanism of the present invention in step 4.

In the figure: 10. packaging the guide rail; 11. a delivery channel; 111. a feeding end; 112. a discharge end; 20. a guide assembly; 21. folding the guide member; 22. a pneumatic claw; 23. a first connecting plate; 221. a first claw member; 222. a second jaw member; 30. a folding assembly; 31. a folding roller; 32. a second connecting plate; 33. a finger clamping cylinder; 40. A sensor.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-2, in order to improve product packaging efficiency, the utility model discloses a wrapping bag folding mechanism, it includes packaging guide rail 10, be formed with the transfer passage 11 that is used for leading the wrapping bag to carry through on packaging guide rail 10, transfer passage 11 one end forms the feed end 111 that supplies the wrapping bag to get into, when the wrapping bag gets into transfer passage 11 from feed end 111, the wrapping bag is for being equipped with the still open state of packing product sack, transfer passage 11's the other end forms the discharge end 112 that supplies the wrapping bag output, the output is generally connected with follow-up packing product, because the wrapping bag has been folded up when the output is followed to the sack, therefore the output can be connected with wrapping bag encapsulation equipment, in order to improve the whole packaging efficiency of product.

The packaging bag folding device further comprises a guide component 20, the guide component 20 comprises folding guide components 21 which are respectively arranged on two opposite sides of the conveying channel 11, the two folding guide components 21 can move in a reciprocating mode in the directions which are close to each other or far away from each other so as to press creases on two opposite sides of the packaging bag in the packaging bag folding process and assist in folding, and because two side faces of the packaging bag are folded towards the inner side of the packaging bag along crease lines when the packaging bag is not unfolded for use, the packaging bag is flat as a whole, crease lines still exist on the two opposite sides of the packaging bag after the packaging bag is unfolded for use, the guide component 20 can press the crease lines on the two opposite sides of the packaging bag in the packaging bag folding process, so that the packaging bag can be folded along the crease lines in the original state, and the.

The folding assembly 30 further comprises a folding assembly 30, the folding assembly 30 comprises two folding rollers 31, the two folding rollers 31 can reciprocate in the directions close to and away from each other and are used for pressing two opposite side surfaces of the packaging bag in the packaging bag folding process to fold the packaging bag, in the packaging bag folding process, the connecting line between the two folding guide members 21 and the connecting line between the two folding rollers 31 are perpendicular to each other, namely, the two folding rollers 31 are abutted against the other two side surfaces of the packaging bag with crease lines in the folding process, when no packaging bag enters the conveying channel 11, the two folding rollers 31 are positioned at the positions far away from each other, so that the packaging bag cannot be interfered by the folding rollers 31 when entering the conveying channel 11, when the bag mouth of the packaging bag is positioned at the position set by the folding assembly 30, the two folding rollers 31 move towards the directions close to press the two opposite side surfaces of the packaging bag, and at the same time, the two folding guides 21 move towards the direction of approaching each other and are pressed against the other two opposite sides of the packaging bag with the crease lines, so that the packaging bag is wholly folded along the crease lines, the bag mouth is finally restored to the non-unfolded state, and the product packaging efficiency can be higher through the cooperation of the folding assembly 30 and the guide assembly 20.

Further, guide assembly 20 and the subassembly 30 of folding up all set up at feed end 111, feed end 111 still is provided with the sensor 40 that is used for responding to the wrapping bag and targets in place, sensor 40 sets up the one side of keeping away from feed end 111 at guide assembly 20 and the subassembly 30 of folding up, be about to get into transfer passage 11 from feed end 111 at the wrapping bag, sensor 40 can sense the wrapping bag and target in place, and send inductive signal for controller (like the PLC controller), the controller can convert inductive signal into corresponding control signal and carry guide assembly 20 and the subassembly 30 position of folding up at the sack and control the work of folding up to subassembly 20 and the subassembly 30 of folding up the sack of wrapping bag, the degree of automation of the utility model is improved.

The guide assembly 20 and the folding assembly 30 can move back and forth in the extending direction of the conveying channel 11, the present invention provides two kinds of folding modes of the packing bag, one is that the packing bag is temporarily transported after entering the conveying channel 11, the guide assembly 20 and the folding assembly 30 begin to fold the bag mouth of the packing bag, when the two folding rollers 31 and the two folding guides 21 are close to the packing bag, the guide assembly 20 and the folding assembly 30 extend along the extending direction of the conveying channel 11 at the same time, specifically, the guide assembly 20 moves in the direction away from the discharging end 112, so that the end of the packing bag close to the bag mouth can be folded, the other mode is that the packing bag still continues to be transported after entering the conveying channel 11, at this time, the folding assembly 30 and the guide assembly 20 begin to fold when the bag mouth part of the packing bag is transported to the folding station, and the technical scheme that the guide assembly 20 and the folding assembly 30 can move back and forth in the extending direction of the conveying channel 11 is mainly an improvement .

As a specific embodiment, the guiding assembly 20 further comprises a guiding driving member, which is respectively in driving connection with the two folding guides 21 to simultaneously drive the two folding guides 21 to approach each other or move away from each other; the guide driving part comprises an air claw 22 and two first connecting plate parts 23; the gas claw 22 comprises a first claw member 221 and a second claw member 222 which can be driven to reciprocate in directions approaching and departing from each other, one end of two first connecting plate members 23 is respectively connected with the first claw member 221 and the second claw member 222, the other end of the two first connecting plate members 23 extends in a direction approaching the conveying passage 11, and is respectively arranged at two opposite sides of the conveying passage 11 and is respectively connected with two folding guide members 21, in this example, the gas claw 22 is arranged at the lower part of the packaging guide rail 10, the two first connecting plate members 23 extend upwards in a vertical direction, and the two folding guide members 21 extend towards the conveying passage 11 in a horizontal direction.

Specifically, the directions of relative movement of the first claw member 221 and the second claw member 222 are parallel to each other with respect to the horizontal direction.

The folding guide member 21 is of a plate-shaped structure, the folding guide member 21 is horizontally arranged, one end of the folding guide member 21 is fixedly installed on the first connecting plate member 23, the other end of the folding guide member extends towards the direction close to the conveying passage 11, the thickness of the folding guide member 21 is gradually reduced from one end close to the first connecting plate member 23 to one end close to the conveying passage 11, the folding guide member 21 can accurately press the creases on two sides of the packaging bag, bag faces on two sides of the creases cannot be interfered, and the smoothness of the packaging bag opening after being folded is guaranteed.

Further, the folding assembly 30 further comprises a second connecting plate 32 and a finger cylinder 33, the second connecting plate 32 is installed between one of the first connecting plates 23 and the folding guide 21, the finger cylinder 33 is installed on the second connecting plate 32, in this case, the second connecting plate 32 is installed on the first connecting plate 23 of the second claw member 222; the finger clamping cylinder 33 includes a first clamping member and a second clamping member, and the two folding rollers 31 are respectively mounted on the first clamping member and the second clamping member and can rotate on the first clamping member and the second clamping member.

As a specific embodiment of the above scheme, the clamping finger cylinder 33 comprises a release state and a folding state;

when the clamping finger cylinder 33 is in a release state, the first clamping piece and the second clamping piece swing and turn towards the direction away from each other to avoid the conveying channel 11;

when the finger clamping cylinder 33 is in the folding state, the first clamping member and the second clamping member swing towards the direction approaching each other so that the two folding rollers 31 are arranged in the conveying channel 11, and the rotation axes of the two folding rollers 31 are parallel to each other and perpendicular to the conveying direction of the conveying channel 11 in the first direction.

When the finger clamping cylinder 33 is in the folding state, the roller surfaces of the two folding rollers 31 respectively abut against the two opposite side surfaces of the two folding guide members 21.

The utility model discloses in the implementation to first kind of packing mode is as an example, has following packing step:

1. as shown in fig. 3-4, the bag enters the conveying passage 11 from the feeding end 111, the sensor 40 senses that the bag is in place, and transmits a position signal of the bag to the corresponding controller;

2. as shown in fig. 4-8, when the bag mouth reaches the folding station where the folding assembly 30 and the guide assembly 20 are located, the first jaw 221 and the second jaw 222 of the air jaw 22 move toward each other, so that the folding guides 21 on both sides of the bag are driven by the first connecting plate 23 and pressed against the folds on both sides of the bag, and the second connecting plate 32 also drives the folding assembly 30 to reach the corresponding folding position;

3. the clamping finger cylinder 33 drives the first clamping piece and the second clamping piece to swing towards the mutually approaching direction, the two folding rollers 31 are pressed against the other two side surfaces of the packaging bag without crease lines, the surfaces of the two folding rollers 31 respectively press the packaging bag against the folding guide member 21, and the bag opening of the packaging bag is folded along the crease line direction to be flat;

4. as shown in fig. 9, after the bag opening is folded, the finger clamping cylinder 33 drives the first clamping member and the second clamping member to swing away from the surface of the bag in the direction away from each other, and the pneumatic claw 22 drives the first claw member 221 and the second claw member 222 to move in the direction away from each other, so as to fold the bag opening.

Preferably, the surface of the folding roller 31 is coated with anti-slip glue to prevent the roller surface of the packaging bag from slipping with the surface of the packaging bag in the folding process.

Through implementing above-mentioned technical scheme, can let product packaging efficiency higher, realize product packaging automation, reduce the human labor cost that manual packaging brought.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (9)

1. A packaging bag folding mechanism is characterized by comprising:

the packaging device comprises a packaging guide rail, a packaging bag and a conveying device, wherein a conveying channel for guiding the packaging bag to convey through is formed on the packaging guide rail;

the guide assembly comprises folding guide members which are respectively arranged on two opposite sides of the conveying channel, and the two folding guide members can move in a reciprocating manner in the directions close to or away from each other so as to be used for pressing the crease marks on the two opposite sides of the packaging bag in the packaging bag folding process to assist in folding;

the folding assembly comprises two folding rollers which can move in a reciprocating manner in the directions of approaching to each other and separating from each other and are used for pressing two opposite side surfaces of the packaging bag to fold the packaging bag in the folding process of the packaging bag;

in the folding process of the packaging bag, a connecting line between the two folding guide members is vertical to a connecting line between the two folding rollers.

2. The bag folding mechanism of claim 1, further comprising: one end of the conveying channel forms a feeding end for the packaging bags to enter, and the other end of the conveying channel forms a discharging end for the packaging bags to be output;

the guiding assembly and the folding assembly are arranged at the feeding end, a sensor used for sensing that the packaging bag is in place is further arranged at the feeding end, and the sensor is arranged at one side of the guiding assembly and one side of the folding assembly far away from the feeding end.

3. The bag folding mechanism of claim 2, further comprising: the guide assembly and the folding assembly are reciprocally movable in the extending direction of the transport path.

4. The bag folding mechanism of claim 1, further comprising: the guide assembly further comprises a guide driving piece which is respectively in driving connection with the two folding guide pieces so as to drive the two folding guide pieces to approach or depart from each other simultaneously;

the guide driving piece comprises an air claw and two first connecting plate pieces; the gas claw comprises a first claw piece and a second claw piece which can be driven to reciprocate in the directions close to and away from each other, one end of each of the two first connecting plate pieces is connected with the first claw piece and the second claw piece respectively, the other end of each of the two first connecting plate pieces extends towards the direction close to the conveying channel, and the two first connecting plate pieces are respectively arranged on two opposite sides of the conveying channel and are connected with the two folding guide pieces respectively.

5. The bag folding mechanism of claim 4, further comprising: the relative movement direction of the first claw member and the second claw member is parallel to the horizontal direction.

6. The bag folding mechanism of claim 4, further comprising: the folding guide piece is of a plate-shaped structure, the folding guide piece is horizontally placed, one end of the folding guide piece is fixedly installed on the first connecting plate, the other end of the folding guide piece extends towards the direction close to the conveying channel, and the thickness of the folding guide piece is gradually reduced from one end close to the first connecting plate to one end close to the conveying channel.

7. The bag folding mechanism of any one of claims 4-6, further comprising: the folding assembly further comprises a second connecting plate and a clamping finger cylinder, the second connecting plate is installed between one of the first connecting plate and the folding guide member, and the clamping finger cylinder is installed on the second connecting plate;

the clamping finger cylinder comprises a first clamping piece and a second clamping piece, and the two folding rollers are respectively arranged on the first clamping piece and the second clamping piece and can rotate on the first clamping piece and the second clamping piece.

8. The bag folding mechanism of claim 7, further comprising: the clamping finger cylinder comprises a release state and a folding state;

when the clamping finger cylinder is in a release state, the first clamping piece and the second clamping piece swing towards the direction away from each other to avoid the conveying channel;

when the clamping finger cylinder is in a folding state, the first clamping piece and the second clamping piece swing towards the mutually approaching direction so that the two folding rollers are arranged in the conveying channel, and the rotation axes of the two folding rollers are mutually parallel and are vertical to the conveying direction of the conveying channel in the first direction;

when the clamping finger cylinder is in a folding state, the roller surfaces of the two folding rollers respectively abut against the two opposite side surfaces of the two folding guide members.

9. The bag folding mechanism of claim 8, further comprising: the surface of the folding roller is coated with anti-slip glue.

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