TWI699321B - Outturned plastic bag stringing machine - Google Patents

Abstract

This creation is a plastic bag stringing machine, which includes a first eversion mechanism, a second eversion mechanism, a first stringing mechanism, and a second stringing mechanism. The first eversion mechanism and the second eversion mechanism can respectively fold the two opening edges of the two raw material belts to the outside of each other, and form two rope-threading spaces. The first rope threading mechanism and the second rope threading mechanism can respectively thread the two ropes into the two rope spaces. By folding outwards to form a space for stringing, it is possible to save the opening procedure to eliminate the interference of static electricity. In addition, by arranging the eversion mechanism in the stringing mechanism, the two procedures of turning and stringing are further separated, so that each mechanism is simplified and each step can be more simplistic, thereby reducing the manufacturing and maintenance of each mechanism Cost, and can reduce the variables in each step, so that the yield of the finished product is improved.

Description

Outturned plastic bag stringing machine

This creation relates to a rope threading machine for plastic bags, especially an outward-turning plastic bag rope threading machine.

Please refer to Figures 16 to 18, the plastic bag with a beam opening includes a bag body 91 and a threading 92. The bag body 91 has a threading space 93 formed on the periphery of its opening, and the threading 92 is inserted in the threading space 93 It can be pulled out from the notch of the string-threading space 93 to form a handle and tighten the opening of the bag 91.

Please further refer to Figure N, the plastic bag with a beam opening is manufactured by a plastic bag stringing machine with a bag body material belt 911 and a string material belt 921. During manufacturing, the bag body material belt 911 is fed into the plastic bag stringing machine and runs along the processing path. The bag body material belt 911 includes two layers of superimposed plastic long belt body 9111. The two layers of plastic long belt body 9111 will be cut into a bag body after three-sided bonding and sealing in the plastic bag stringing machine. 91. In addition, the plastic bag rope threading machine includes an inverted rope threading component 94, which can firstly open the two layers of plastic long strips 9111 before bonding and sealing the edges, and at the same time turn inward the edge of the side that will form the opening in the future Folding and bonding forms the stringing space 93, and the stringing material belt 921 is inserted into the stringing space 93 while turning inward, and then the stringing material belt 921 is inserted in the stringing space 93 and follows the bag body material belt 911 leaves the inturned threading assembly 94. Finally, the remaining three sides will be bonded and sealed and then cut, so that the two ends of the formed stringing 92 are also bonded to the two ends of the stringing space 93, thereby forming a plastic bag with a beam opening.

However, the inverted plastic bag stringing machine in the prior art has the following disadvantages:

First, there is static electricity between the two layers of bag body material belts 911, which makes it difficult to separate the inverted and threaded assembly 94, which may cause jamming or errors in the inverted and threaded assembly 94 to be manually eliminated during the production process.

Second, since the inward-turning rope-threading assembly 94 must complete the procedures of spreading, inward-turning, and rope-threading at the same time, its mechanism is complicated, which results in high manufacturing and maintenance costs of the plastic bag threading machine.

Third, since the three procedures of spreading, turning in, and threading are completed in the turning and threading assembly 94 at the same time, there are many variables, which will cause many errors and easy to make mistakes in the case of high-speed production. In turn, the yield of the finished product is reduced.

In view of the aforementioned shortcomings and deficiencies of the prior art, this creation provides a foldable plastic bag stringing machine, which has a simple mechanism and can reduce manufacturing and maintenance costs, and can be expanded, inverted, and stringed The three procedures are carried out separately to improve the yield of finished products.

In order to achieve the above creative purpose, the technical means used in this creation is to design an eversion type plastic bag stringing machine, which is used to process a bag body material belt and a stringing material belt, the bag body material belt includes overlapping A first belt body and a second belt body are combined, the first belt body has a first opening side, the second belt body has a second opening side, the first opening side is opposite to the second opening side Qi; The outward-turning plastic bag stringing machine includes: A first eversion mechanism, which is located on the travel path of the bag body material belt; when the bag body material belt passes through the first eversion mechanism, the first eversion mechanism can be used for the first eversion mechanism of the first belt. An opening edge is turned in a direction away from the second belt body, thereby forming a first stringing space; A second eversion mechanism, which is located on the travel path of the bag body material belt; when the bag body material belt passes through the second eversion mechanism, the second eversion mechanism can be used for the second eversion mechanism of the second belt. The two opening edges are folded toward the direction away from the first belt body, thereby forming a second rope-threading space; A stringing and slitting mechanism is located on the path of the stringing material belt; when the stringing material belt passes through the stringing and slitting mechanism, the stringing and slitting mechanism can travel along the stringing material belt Cut the threading material tape into a first section and a second section in the direction; A first stringing mechanism, which is located on the travel path of the bag body material belt and behind the first eversion mechanism, and the first stringing mechanism is also located on the travel path of the first section; When a strip passes through the first rope threading mechanism, the first rope threading mechanism can thread the first strip into the first rope threading space; A second rope threading mechanism, which is located on the travel path of the bag body material belt and behind the second eversion mechanism, and the second rope threading mechanism is also located on the travel path of the second slit; When the two strips pass through the second rope threading mechanism, the second rope threading mechanism can pass the second strip into the second rope threading space.

The advantage of this creation is that the first eversion mechanism and the second eversion mechanism respectively fold the first belt body and the second belt body toward the outside of each other, thereby eliminating the need to fold the first belt body and the second belt body. The belt body is relatively opened, which can eliminate the interference of static electricity and reduce a procedure. Moreover, by arranging the first eversion mechanism and the second eversion mechanism before the first rope-threading mechanism and the second rope-threading mechanism, the two procedures of turning and rope-threading are further separated, so that each mechanism can be simplified and This makes each step more simplistic, thereby reducing the manufacturing and maintenance costs of each mechanism, and reducing the variables in each step, so that the yield of the finished product can be improved.

Furthermore, in the outward-turning plastic bag stringing machine, the first outward-turning mechanism includes a back plate, which is a flat plate, and a first turning plate, which is provided on one side edge of the back plate; The first turning plate includes a curved surface, and the curved surface is connected with the back plate and sandwiched to form a first eversion space; wherein, when the bag body material belt passes through the first eversion mechanism, the bag body material The traveling direction of the belt is parallel to the back plate, and along the traveling direction of the bag body material belt, the curved surface of the first turning plate gradually turns to face the back plate; the back plate penetrates the first belt body And the second belt body; the first belt body passes through the first eversion space; the first opening edge of the first belt body runs along the curved surface of the first turning plate and follows the bag The body material belt is gradually turned over by the first turning plate toward the back plate.

Furthermore, in the outward-turning plastic bag stringing machine, the first outward-turning mechanism further includes a first positioning plate, which is a flat plate, and is parallel to the back plate and passes through the first positioning plate. In the eversion space; the first positioning plate includes a first abutting flat side, the first abutting flat side is located in the first eversion space; wherein, when the bag body material belt passes through the first eversion mechanism At this time, the first belt body penetrates between the back plate and the first positioning plate, and the first belt body abuts against the first abutting flat edge relative to the outer side surface of the second belt body.

Further, in the outward-turning plastic bag stringing machine, the second outward turning mechanism includes a turning direction; when the bag body material belt passes through the second outward turning mechanism, the turning direction is perpendicular to the The direction of travel of the bag material belt, and the turning direction is from the second opening edge toward the center of the second belt; a second positioning plate, which is a flat plate; when the bag material belt passes through the second eversion In the mechanism, the second positioning plate is parallel to the traveling direction of the bag body material belt and the turning direction; the second positioning plate includes a belt surface, a back side, and a second flat side; a second Folding plate, which is a flat plate, and is arranged parallel to and spaced apart from the second positioning plate; a gap is sandwiched between the extension plane of the second folding plate and the extension plane of the second positioning plate, and the second flip The folding board is located on one side of the back side relative to the second positioning board; the second folding board includes a folding oblique edge, which extends along the traveling direction of the bag body material belt and the folding direction; On the extension plane of the second positioning plate, the projection of the folded oblique side intersects the extension line of the second abutting flat side; wherein, when the bag body material belt passes through the second eversion mechanism, the second belt body With respect to the outer side of the first belt body, it abuts against the belt body surface of the second positioning plate and the second abutting flat edge; the second opening edge abuts against the folded oblique edge and follows the bag The body material belt is gradually turned over by the turning bevel toward the extension plane of the second positioning plate.

Further, in the outward-turning plastic bag stringing machine, the second outward-turning mechanism further includes an edge support plate, which is arranged on one side edge of the second positioning plate and faces the side of the back side Bend, and the edge supporting plate is located before the second positioning plate in the traveling direction of the bag body material belt; the edge supporting plate includes an edge supporting bevel along the traveling direction of the bag body material belt and the The folding direction extends and is connected to the second abutting flat edge; wherein, when the bag body material belt passes through the second eversion mechanism, the second belt body abuts against the outer side of the first belt body Beside the supporting edge.

Further, in the outward-turning plastic bag rope threading machine, the first rope threading mechanism includes a rope threading plate that is parallel to the traveling direction of the bag body material belt and includes a rope threading end. In the first stringing space; a guiding end opposite to the stringing end; a stringing bevel formed at the stringing end and located in the first stringing space; the stringing bevel Inclined to the traveling direction of the bag body material belt; a guide roller, which is arranged at the guide end of the rope threading plate; the axis of the guide roller is parallel to the rope threading plate and perpendicular to the rope threading end The connecting line with the guide end; wherein, when the first strip passes through the first rope-threading mechanism, the first strip abuts the guide roller and surrounds the rope-threading hypotenuse, and Thereby, it is threaded in the first stringing space.

Furthermore, in the outward-turning plastic bag stringing machine, the line between the stringing end and the guiding end is perpendicular to the traveling direction of the bag body material belt, and the stringing oblique edge is connected to the The direction of travel of the bag body material belt is 45 degrees.

Further, in the outward-turning plastic bag rope threading machine, the first rope threading mechanism further includes a limit member connected to the rope threading end of the rope threading plate and connected to the rope threading bevel Surrounded together to form a space; wherein, when the first strip passes through the first rope threading mechanism, the first strip passes through the space.

Furthermore, the outward-turning plastic bag stringing machine, wherein the outward-turning plastic bag stringing machine further includes a side-tracking mechanism, which is arranged on the travel path of the stringing material belt and is located Before the rope threading and slitting mechanism, the slitting edge chasing mechanism includes a base; a swivel seat, which is rotatably arranged on the base; two guide rollers, which are arranged parallel to each other on the swivel seat; Wherein, when the stringing material belt passes through the slitting edge chasing mechanism, the stringing material belt abuts against the two guide rollers.

Furthermore, the said outward-turning plastic bag stringing machine, wherein the outward-turning plastic bag stringing machine further comprises a stringing connection mechanism, which is arranged on the travel path of the stringing material belt and is located at the Before the threading and slitting mechanism, the threading connection mechanism includes two heat-welding parts, which can be thermally fused to join the threading material belt and the other threading material belt; a stroke buffer mechanism is arranged on the threading material The travel path of the raw material belt is located between the stringing connection mechanism and the stringing slitting mechanism. The stroke buffer mechanism includes two buffer groups that can approach or move away from each other; each buffer group includes a plurality of support belts The rope-threading material belt alternately surrounds the supporting pulleys of the two buffer groups.

In the following, in conjunction with the drawings and preferred embodiments of this creation, the technical means adopted by this creation to achieve the predetermined creation purpose are further described.

Please refer to Figure 1 to Figure 3, Figure 6, and Figure 9, the fold-out plastic bag stringing machine of this invention is used to process a bag body material belt A and a stringing material belt B. Wherein, the bag body material belt A includes a first belt body A1 and a second belt body A2 that are superimposed. The first belt body A1 has a first opening side A11, and the second belt body A2 has a second opening side. A21, the first opening side A11 is aligned with the second opening side A21, that is, it is located on the same side of the bag body material belt A. The eversion type plastic bag stringing machine includes a first eversion mechanism 10, a second eversion mechanism 20, a stringing slitting mechanism 30, a first stringing mechanism 40, a second stringing mechanism 50, a Slitting edge chasing mechanism 60, a rope threading joint mechanism 70, and a stroke buffer mechanism 80.

Please further refer to FIG. 4 to FIG. 6 and FIG. 15. As shown in FIG. 4, the first eversion mechanism 10 is located on the traveling path of the bag body material belt A. When the bag body material belt A passes through the first eversion mechanism 10, the first eversion mechanism 10 can fold the first opening edge A11 of the first belt body A1 in a direction away from the second belt body A2, in other words, toward The outer sides of the first belt body A1 and the second belt body A2 are folded, thereby forming a first stringing space A12. Specifically, in this embodiment, the first outward turning mechanism 10 includes a back plate 11, a first turning plate 12, and a first positioning plate 13.

The back plate 11 is a flat plate.

The first turning board 12 is provided on one side edge of the back board 11, the first turning board 12 includes a curved surface, and the curved surface is connected with the back board 11 and sandwiched to form a first outward turning space 14, that is to say A turning plate 12 is gradually turned toward the back plate 11 along the traveling direction of the bag body material belt A, and is sandwiched with the back plate 11 to form a first eversion space 14. In other words, the top ends of the first turning plate 12 and the back plate 11 are originally interposed to form an angle (in this embodiment, it is 90 degrees, but not limited to this), and runs along the bag body material belt A. The angle in the direction of travel gradually decreases, and finally the bottom ends of the first turning plate 12 and the back plate 11 are parallel; that is, the first turning plate 12 extends curvedly along the direction of travel of the bag body material belt A , And the side facing the back plate 11 forms the curved surface, thereby guiding and folding the first opening edge A11.

The first positioning plate 13 is a flat plate parallel to the back plate 11 and passes through the first eversion space 14. The first positioning plate 13 includes a first flat abutting edge 131, and the first flat abutting edge 131 is located in the first eversion space 14.

Wherein, when the bag body material belt A travels through the first eversion mechanism 10, the travel direction of the bag body material belt A is parallel to the back plate 11, and along the travel direction of the bag body material belt A, the first turning plate 12 The curved surface gradually turns to face the back plate 11; and at the same time, the back plate 11 is inserted between the first belt body A1 and the second belt body A2, that is, the second belt body A2 directly passes through the back plate 11 relative to the first belt body A2. One side of the folding plate 12 is not folded; and at the same time, the first belt body A1 is inserted between the back plate 11 and the first positioning plate 13 (passing through the first eversion space 14), and A belt A1 abuts against the first flat edge 131 relative to the outer side of the second belt A2, and at the same time, the first opening edge A11 runs along the curved surface of the first turning plate 12 and follows the bag The body material belt A is gradually turned over by the first turning plate 12 toward the back plate 11 while traveling.

Please further refer to FIG. 7 to FIG. 9 and FIG. 15. As shown in FIG. 15, the second eversion mechanism 20 is located on the traveling path of the bag body material belt A. When the bag body material belt A passes through the second eversion mechanism 20, the second eversion mechanism 20 can turn the second opening edge A21 of the second belt body A2 toward the direction away from the first belt body A1, in other words, toward The outer sides of the first belt body A1 and the second belt body A2 are folded, thereby forming a second stringing space A22. Specifically, in this embodiment, the second outward turning mechanism 20 includes a turning direction D1, a second positioning plate 21, a second turning plate 22, and an edge supporting plate 23.

When the bag body material belt A passes through the second eversion mechanism 20, the turning direction D1 is perpendicular to the traveling direction of the bag body material belt A, and the turning direction D1 is from the second opening edge A21 toward the center of the second belt body A2 .

The second positioning plate 21 is a flat plate, and when the bag body material belt A passes through the second eversion mechanism 20, it is parallel to the traveling direction of the bag body material belt A and the turning direction D1. The second positioning plate 21 includes a belt surface, a back side surface, and a second flat side 211.

The second turning plate 22 is a flat plate, and is parallel to and spaced apart from the second positioning plate 21. A gap is sandwiched between the imaginary extension plane on the second turning board 22 and the imaginary extension plane on the second positioning board 21, and the second turning board 22 is located on one side of the back side relative to the second positioning board 21. The second turning plate 22 includes a turning bevel edge 221. The turning bevel edge 221 extends along the traveling direction of the bag material belt A and the turning direction D1, and is folded on the extension plane of the second positioning plate 21 The projection of the oblique side 221 intersects the extension line of the second flat abutting side 211; in other words, the folded oblique side 221 extends obliquely and extends in the folding direction D1 to exceed the second flat abutting side 211.

The edge support plate 23 is a flat plate and is arranged on one side edge of the second positioning plate 21 and is bent toward the side of the back side, and in the traveling direction of the bag body material belt A, the edge support plate 23 is located on the second positioning plate 21 Before, in other words, the bag body material belt A first passes through the edge supporting plate 23 and then passes through the second positioning plate 21. The supporting board 23 includes a supporting beveled edge 231. The supporting beveled edge 231 extends along the traveling direction and the folding direction D1 of the bag body material belt A, and is connected to the second abutting flat edge 211. Specifically, since the second positioning plate 21 is horizontally arranged in this embodiment, the edge supporting plate 23 is inclined downward, and the edge supporting hypotenuse 231 extends upwardly, and is moving along the bag body material belt A. The direction gradually extends from the edge to the center, and finally connects to the second flat side 211. Thereby, the edge supporting board 23 can open the second opening edge A21 through the edge supporting hypotenuse 231 to maintain a certain tension of the second opening edge A21 before and after being folded.

Wherein, when the bag body material belt A passes through the second eversion mechanism 20, the second belt body A2 abuts against the belt body surface of the second positioning plate 21 and the second abutting flat edge relative to the outer side of the first belt body A1 211; and at the same time, the second opening side A21 abuts against the folding bevel 221, so that the second opening side A21 can follow the folding bevel 221, and as the bag body material belt A travels and is gradually folded The oblique side 221 is folded toward the extension plane of the second positioning plate 21; and at the same time, the second belt body A2 abuts against the supporting oblique side 231 relative to the outer side of the first belt body A1, thereby supporting the oblique side 231, The second abutting flat side 211 and the folded oblique side 221 cooperate to maintain the tension of the second belt body A2.

In addition, in this embodiment, the bag body material belt A first passes through the first eversion mechanism 10 and then the second eversion mechanism 20, but it is not limited to this, the bag body material belt A can pass through both at the same time; The specific structures of the first eversion mechanism 10 and the second eversion mechanism 20 are not limited to those described above. In other embodiments, the structures of the two may be completely the same, or the structures of the two may be reversed.

Please further refer to FIG. 1 and FIG. 3, the stringing and slitting mechanism 30 is located on the traveling path of the stringing material belt B. When the stringing material tape B passes through the stringing slitting mechanism 30, the stringing slitting mechanism 30 can cut the stringing material tape B into a first slit B1 and a first slit along the traveling direction of the stringing material tape B. Two points B2. Specifically, the stringing and slitting mechanism 30 includes a blade that is parallel to the direction of travel of the stringing material belt B, and its blade faces the direction opposite to the direction of travel of the stringing material belt B, thereby acting as the stringing material belt B After contacting the blade, it is cut into a first section B1 and a second section B2.

Please further refer to Figures 10 and 12, the first stringing mechanism 40 is located on the travel path of the bag body material belt A and behind the first eversion mechanism 10, and the first stringing mechanism 40 is located at the same time in the first section B1 On the path of travel. When the first strip B1 passes through the first rope threading mechanism 40, the first rope threading mechanism 40 can thread the first strip B1 into the first rope threading space A12. Specifically, in this embodiment, the first rope threading mechanism 40 includes a rope threading plate 41, a guide roller 42, and a limiting member 43.

The stringing plate 41 is parallel to the traveling direction of the bag body material belt A and includes a stringing end 411 and a guiding end 412 opposite to each other, and a stringing bevel 413. The stringing end 411 is inserted into the first stringing space A12. Specifically, the stringing plate 41 extends from the central part of the first belt body A1 toward the edge part, and thereby the first stringing space A12 has not been closed yet. The opening penetrates into the first stringing space A12. The stringing bevel 413 is formed at the stringing end 411 and is located in the first stringing space A12, and the stringing bevel 413 is inclined to the traveling direction of the bag body material belt A; specifically, the stringing end in this embodiment The connecting line between 411 and the guiding end 412 is perpendicular to the traveling direction of the bag material belt A, and the stringing oblique side 413 and the traveling direction of the bag material belt A are 45 degrees, but not limited to this.

The guiding roller 42 is provided at the guiding end 412 of the rope threading plate 41. The axis of the guiding roller 42 is parallel to the rope threading plate 41 and perpendicular to the line between the rope threading end 411 and the guiding end 412.

The limiting member 43 is a frame bar connected to the stringing end 411 of the stringing plate 41, and surrounds the stringing oblique side 413 to form a space.

Wherein, when the first strip B1 passes through the first rope threading mechanism 40, the first strip B1 abuts against the guide roller 42, and is surrounded by the space formed by the stopper 43 and the rope threading bevel 413, and It surrounds the rope-threading oblique side 413 and is turned to be threaded in the first rope-threading space A12. Through the stringing plate 41 and the stringing bevel 413 installed in the stringing space, the stringing can be threaded into the space after being folded, without the need for stringing while folding. The rope step is simplistic.

The second rope threading mechanism 50 is located on the traveling path of the bag body material belt A and behind the second eversion mechanism 20, and the second rope threading mechanism 50 is also located on the traveling path of the second section B2. When the second strip B2 passes through the second rope threading mechanism 50, the second rope threading mechanism 50 can thread the second strip B2 into the second rope threading space A22. Specifically, in this embodiment, the specific structure of the second stringing mechanism 50 is exactly the same as that of the first stringing mechanism 40, except that the second stringing space A22 corresponding to the second strap A2 and the second sub The strip B2 can also achieve the same effect as the first rope threading mechanism 40.

Please further refer to Figure 1, Figure 3, and Figure 13, the slitting edge chasing mechanism 60 is provided on the travel path of the stringing material belt B, and is located before the stringing slitting mechanism 30, the slitting edge chasing mechanism 60 includes a base Seat 61, a rotating seat 62, and two guide rollers 63. The base 61 is fixedly arranged, and the rotating base 62 is rotatably arranged on the base 61. The two guide rollers 63 are arranged on the rotating seat 62 parallel to each other. When the rope-threading material belt B passes through the slitting edge chasing mechanism 60, the rope-threading material belt B abuts the two guide rollers 63. Thereby, when the rotating base 62 rotates, the two guide rollers 63 will change the connection direction between the two along with the rotation, so that the connection direction is inclined to the original traveling direction of the threading material belt B, so the rope is threaded The raw material belt B will be guided by the two guide rollers 63 and will deviate left and right relative to its original traveling direction. In this way, the rotation of the rotating seat 62 can be used to adjust the contact of the threading raw material belt B to the threading points. The position of the blade of the strip mechanism 30 achieves the effect of controlling the thickness of the first strip B1 and the second strip B2.

Please further refer to FIG. 1 and FIG. 14, the stringing connecting mechanism 70 is provided on the traveling path of the stringing material belt B, and is located in front of the stringing slitting mechanism 30. The stringing connection mechanism 70 includes two heat-welding parts 71, and the two heat-welding parts 71 can be heat-melted to join a stringing material belt B and another stringing material belt B; specifically, the two heat-welding parts 71 are arranged separately On both sides of the belt surface of the stringing material belt B, two bundles of the stringing material belt B are joined by clamping and contacting the stringing material belt B and generating heat. In this way, when a bundle of stringing material belt B is used up, the stringing connecting mechanism 70 can connect another bundle of spare stringing material belt B to maintain the continuous operation of the entire machine and make the machine There is no need to stop the operation due to the replacement of the stringing material belt B, thereby maximizing production efficiency.

Please further refer to FIG. 3, the stroke buffer mechanism 80 and the stringing engagement mechanism 70 cooperate with each other. The stroke buffer mechanism 80 is arranged on the traveling path of the stringing material belt B and is located between the stringing engagement mechanism 70 and the stringing slitting mechanism 30. The stroke buffer mechanism 80 includes two buffer groups 81, which can approach or move away from each other. Each buffer group 81 includes a plurality of supporting pulleys 811, and the stringing material belt B alternately surrounds the supporting belt wheels 811 of the two buffer groups 81, so that the stringing material belt B will have a certain length of paragraph to travel through the stroke buffer mechanism 80 In this way, when the two thermally welded parts 71 of the stringing connection mechanism 70 begin to weld the two bundles of stringing material belts B, the two buffer groups 81 can be relatively close to release the original travel The length of the paragraph between the two buffer groups 81, so that the stringing material belt B before the stroke buffering mechanism 80 can stop traveling to facilitate welding, and the stringing material belt B after the stroke buffering mechanism 80 can continue Travel to facilitate the continuous rope manufacturing of the machine.

When used in this creation, the bag body material belt A passes through the first eversion mechanism 10, the second eversion mechanism 20, the second rope-threading mechanism 50, and the first rope-threading mechanism 40 in sequence, and is folded and threaded in sequence The rope is then bonded and edge-sealed to finally form a rope-threading plastic bag with an outwardly-turned rope space, as shown in Figure 15.

The first eversion mechanism 10 and the second eversion mechanism 20 respectively fold the first belt A1 and the second belt A2 toward the outside of each other, thereby eliminating the need for the first belt A1 and the second belt The body A2 is relatively open, which can eliminate the interference of static electricity and reduce a procedure. Moreover, by arranging the first eversion mechanism 10 and the second eversion mechanism 20 before the first rope threading mechanism 40 and the second rope threading mechanism 50, the two procedures of turning and rope threading are further separated, so that each The mechanism is simplified and each step can be more simplistic, thereby reducing the manufacturing and maintenance costs of each mechanism, and reducing the variables in each step, so that the yield of the finished product can be improved.

The above is only the preferred embodiment of this creation, and does not impose any formal restriction on this creation. Although this creation has been disclosed as above in preferred embodiments, it is not intended to limit this creation. Any technical field has Generally knowledgeable persons, without departing from the scope of this creative technical solution, can use the technical content disclosed above to make slight changes or modifications into equivalent embodiments with equivalent changes. However, any content that does not deviate from this creative technical solution is based on this Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence of the creation still fall within the scope of the technical solution for creation.

A: Bag body material belt

A1: The first belt

A11: The first opening edge

A12: The first rope space

A2: The second belt

A21: The second opening edge

A22: The second rope space

B: Threading material belt

B1: The first branch

B2: The second subsection

10: The first eversion mechanism

11: Backplane

12: The first flap

13: The first positioning plate

131: The first against the flat edge

14: The first eversion space

20: The second eversion mechanism

D1: Folding direction

21: The second positioning plate

211: The second against the flat edge

22: The second flap

221: Folding bevel

23: Edge plate

231: Support edge hypotenuse

30: Threading slitting mechanism

40: The first rope mechanism

41: Threading board

411: Thread End

412: Leading End

413: Drawstring bevel

42: Guide roller

43: limit piece

50: The second rope mechanism

60: Sub-section chasing mechanism

61: Pedestal

62: transposition

63: Guide roller

70: Threading connection mechanism

71: thermal welding parts

80: Stroke buffer mechanism

81: buffer group

811: Support pulley

91: bag body

911: Bag body material belt

9111: Plastic long belt body

92: Threading

93: Threading Space

Figure 1 is the three-dimensional appearance of this creation. Figure 2 is a schematic diagram of the travel path of the bag material belt created by this invention. Figure 3 is a schematic diagram of the travel path of the stringing material belt created by this invention. Figure 4 is a perspective view of the first eversion mechanism of this creation. Figure 5 is a top view of the first eversion mechanism of this creation. Figure 6 is a schematic diagram of the use of the first eversion mechanism of this creation. Figure 7 is a perspective view of the second eversion mechanism of this creation. Figure 8 is a top view of the second eversion mechanism of this creation. Figure 9 is a schematic diagram of the use of the second eversion mechanism of this creation. Figure 10 is a perspective view of the first rope-threading mechanism of this creation. Figure 11 is a partial enlarged view of the first rope-threading mechanism of this creation. Figure 12 is a schematic diagram of the use of the first stringing mechanism of this creation. Figure 13 is the three-dimensional appearance view of the slitting edge chasing mechanism created by this invention. Figure 14 is a three-dimensional appearance view of the threading connection mechanism created by this invention. Fig. 15 is a schematic cross-sectional view of the outward-turning-type stringing plastic bag manufactured by the outward-turning-type plastic bag stringing machine of this invention. Figure 16 is a perspective view of a plastic bag with a string in the prior art. Figure 17 is a schematic cross-sectional view of a stringed plastic bag in the prior art. Figure 18 is a schematic diagram of a plastic bag stringing machine in the prior art.

A: Bag body material belt

B: Threading material belt

10: The first eversion mechanism

20: The second eversion mechanism

30: Threading slitting mechanism

60: Sub-section chasing mechanism

70: Threading connection mechanism

80: Stroke buffer mechanism

Claims (10)

An outward-turning plastic bag stringing machine, which is used for processing a bag body material belt and a stringing material belt. The bag body material belt includes a first belt body and a second belt body that are superimposed. A belt body has a first opening side, the second belt body has a second opening side, the first opening side is aligned with the second opening side; the outward-turning plastic bag stringing machine includes A first eversion mechanism, which is located on the travel path of the bag body material belt; when the bag body material belt passes through the first eversion mechanism, the first eversion mechanism can be used for the first eversion mechanism of the first belt. An opening edge is turned in a direction away from the second belt body, thereby forming a first stringing space; A second eversion mechanism, which is located on the travel path of the bag body material belt; when the bag body material belt passes through the second eversion mechanism, the second eversion mechanism can be used for the second eversion mechanism of the second belt. The two opening edges are folded toward the direction away from the first belt body, thereby forming a second rope-threading space; A stringing and slitting mechanism is located on the path of the stringing material belt; when the stringing material belt passes through the stringing and slitting mechanism, the stringing and slitting mechanism can travel along the stringing material belt Cut the threading material tape into a first section and a second section in the direction; A first stringing mechanism, which is located on the travel path of the bag body material belt and behind the first eversion mechanism, and the first stringing mechanism is also located on the travel path of the first section; When a strip passes through the first rope threading mechanism, the first rope threading mechanism can thread the first strip into the first rope threading space; A second rope threading mechanism, which is located on the travel path of the bag body material belt and behind the second eversion mechanism, and the second rope threading mechanism is also located on the travel path of the second slit; When the two strips pass through the second rope threading mechanism, the second rope threading mechanism can pass the second strip into the second rope threading space. As described in claim 1, the outward-turning plastic bag stringing machine, wherein the first outward-turning mechanism includes A back plate, which is a flat plate; A first turn-over board arranged on one side edge of the back board; the first turn-over board includes a curved surface, and the curved surface is connected with the back board and sandwiched to form a first eversion space; Wherein, when the bag body material belt passes through the first eversion mechanism, the traveling direction of the bag body material belt is parallel to the back plate, and Along the traveling direction of the bag body material belt, the curved surface of the first turning plate gradually turns to face the back plate; The back plate penetrates between the first belt body and the second belt body; The first belt body passes through the first eversion space; The first opening edge of the first belt body runs along the curved surface of the first turning plate, and is gradually turned over by the first turning plate toward the back plate as the bag body material belt progresses. As claimed in claim 2, wherein the first eversion mechanism further includes a first positioning plate, which is a flat plate and is parallel to the back plate and passes through the first positioning plate. In the eversion space; the first positioning plate includes a first abutting flat edge, and the first abutting flat edge is located in the first eversion space; Wherein, when the bag body material belt passes through the first eversion mechanism, the first belt body passes through between the back plate and the first positioning plate, and the first belt body is relative to the second belt body The outer side surface of the device abuts against the first flat edge. As described in any one of claims 1 to 3, the outward-turning plastic bag stringing machine, wherein the second outward-turning mechanism includes A turning direction; when the bag body material belt passes through the second eversion mechanism, the turning direction is perpendicular to the traveling direction of the bag body material belt, and the turning direction is from the second opening edge toward the second belt The center of the body A second positioning plate, which is a flat plate; when the bag body material belt passes through the second eversion mechanism, the second positioning plate is parallel to the traveling direction of the bag body material belt and the turning direction; the second positioning The board includes a strip surface, a back side, and a second flat side; A second turning plate, which is a flat plate, and is arranged parallel to and spaced apart from the second positioning plate; a gap is sandwiched between the extension plane of the second turning plate and the extension plane of the second positioning plate, and The second turning board is located on one side of the back side relative to the second positioning board; the second turning board includes A folded bevel, which extends along the traveling direction of the bag body material belt and the folding direction; on the extension plane of the second positioning plate, the projection of the folded bevel and the second abutting flat edge The extension lines intersect; Wherein, when the bag body material belt passes through the second eversion mechanism The second belt body abuts against the belt body surface of the second positioning plate and the second abutting flat edge with respect to the outer side surface of the first belt body; The second opening edge abuts against the folded slanted edge, and is gradually folded by the folded slanted edge toward the extension plane of the second positioning plate as the bag body material belt progresses. As described in claim 4, the outward-turning plastic bag stringing machine, wherein the second outward-turning mechanism further includes An edge supporting plate, which is arranged on one side edge of the second positioning plate and bent toward one side of the back side, and the edge supporting plate is located in front of the second positioning plate in the traveling direction of the bag body material belt ; The bracing board contains A supporting edge, which extends along the traveling direction and the turning direction of the bag body material belt, and is connected to the second abutting flat edge; Wherein, when the bag body material belt passes through the second eversion mechanism, the second belt body abuts against the supporting bevel relative to the outer side surface of the first belt body. As described in any one of claims 1 to 3, the outward-turning plastic bag stringing machine, wherein the first stringing mechanism includes A rope piercing board, which is parallel to the traveling direction of the bag body material belt and contains A rope threading end, which is threaded in the first rope threading space; A leading end relative to the threading end; A rope-threading oblique edge formed at the rope-threading end and located in the first rope-threading space; the rope-threading oblique edge is inclined to the traveling direction of the bag body material belt; A guide roller arranged at the guide end of the rope threading plate; the axis of the guide roller is parallel to the rope threading plate and perpendicular to the line between the rope threading end and the guiding end; Wherein, when the first sub-strip passes through the first rope-threading mechanism, the first sub-strip abuts on the guide roller, and surrounds the rope-threading oblique side, and is thereby threaded on the first rope-threading mechanism In space. As described in claim 6, the line between the threading end and the guiding end is perpendicular to the direction of travel of the bag body material belt, and the threading oblique side is connected to the The direction of travel of the bag body material belt is 45 degrees. As described in claim 6, the outward-turning plastic bag stringing machine, wherein the first stringing mechanism further includes A limit piece connected to the rope threading end of the rope threading plate and surrounds the rope threading hypotenuse to form a space; Wherein, when the first strip passes through the first rope threading mechanism, the first strip passes through the space. As described in any one of claims 1 to 3, the outward-turning plastic bag stringing machine, wherein the outward-turning plastic bag stringing machine further includes A slitting edge chasing mechanism, which is arranged on the traveling path of the stringing material belt and before the stringing slitting mechanism, the slitting chasing mechanism includes A base A swivel seat, which is rotatably arranged on the base; Two guide rollers, which are arranged parallel to each other on the rotating seat; Wherein, when the stringing material belt passes through the slitting edge chasing mechanism, the stringing material belt abuts against the two guide rollers. For example, the outward-turning plastic bag stringing machine described in any one of claims 1 to 3 can process another stringing material belt; the outward-turning plastic bag stringing machine further includes A threading engagement mechanism, which is arranged on the travel path of the threading material belt and located before the stringing and slitting mechanism, the stringing engagement mechanism includes Two heat-welding parts, which can be heat-melted to join the stringing material belt and the other stringing material belt; A stroke buffering mechanism, which is arranged on the traveling path of the stringing material belt and located between the stringing engagement mechanism and the stringing slitting mechanism, the stroke buffering mechanism includes Two buffer groups, which can be close to or far away from each other; each buffer group includes a plurality of supporting pulleys, and the stringing material belt alternately surrounds the supporting pulleys of the two buffer groups.

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