CN216683547U

CN216683547U - Stringing bag production facility

Info

Publication number: CN216683547U
Application number: CN202220133034.8U
Authority: CN
Inventors: 蒋欢
Original assignee: Zhejiang Baihao Machinery Co ltd
Current assignee: Zhejiang Baihao Machinery Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-07
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a stringing bag production device, which is characterized in that an M-edge structure inserting edge forming and cutting station, a die-cut drawstring extraction port station, a drawstring introducing station, a drawstring accommodating cavity forming station and a bag body forming station are sequentially arranged on the path of a belt material, wherein the M-edge structure inserting edge forming and cutting station is provided with an M-edge structure inserting edge forming device, and a blade is also arranged at the M-edge structure inserting edge forming device; die-cut drawstring extraction mouth station is equipped with die-cut device, it is provided with the drawstring introducing device to introduce the drawstring station, the drawstring holds chamber shaping station and is provided with vertical heat-seal roller one and vertical heat-seal roller two, bag body shaping station is provided with heat-seal knife device or heat-seal point device, and M limit structure shaping, M limit structure subdivision, die-cut drawstring extraction mouth, introduction drawstring, drawstring hold the chamber shaping and all accomplish at the strip material at the uniform velocity of advancing, and the finished product bag is of high quality, and production efficiency is high.

Description

Stringing bag production facility

Technical Field

The utility model relates to the technical field of stringing bag production, in particular to stringing bag production equipment.

Background

The stringing bag is a packaging bag, generally comprising a bag body and a drawstring, wherein the drawstring is arranged at the bag mouth in a penetrating way, a notch for conveniently drawing the drawstring out is arranged at the bag mouth, the drawstring is drawn out from the notch after being filled with materials when in use, and the bag mouth is naturally tightened The defects of heat sealing displacement and the like and low production efficiency.

Disclosure of Invention

The utility model aims to provide a stringing bag production device which has the advantages of stable performance, high production efficiency and low labor cost and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a stringing bag production device is used for producing stringing bags, and is sequentially provided with an M-edge structure inserting edge forming and cutting station, a die-cut drawstring extraction port station, a drawstring introducing station, a drawstring accommodating cavity forming station and a bag body forming station on a path of a belt material, wherein the M-edge structure inserting edge forming and cutting station is provided with an M-edge structure inserting edge forming device, and a blade is also arranged at the M-edge structure inserting edge forming device; the drawing rope punching and drawing device is characterized in that a punching device is arranged at a punching drawing rope drawing opening station, a drawing rope drawing introducing device is arranged at a drawing rope introducing station, a longitudinal heat sealing roller I and a longitudinal heat sealing roller II are arranged at a drawing rope accommodating cavity forming station, and a heat sealing knife device or a heat sealing point-breaking device is arranged at a bag body forming station.

Further: m limit structure insert limit forming device including locate the outside inserted sheet of strip one side and pair set up in the inside interior fagging of strip, interior fagging is the U type structure that the side set up, follows according to strip advancing direction the guiding edge of inserted sheet is stretched into gradually by feed end to discharge end in the fagging.

Further: the inner supporting plate is supported by a support, a gap is reserved between the support and two U-shaped inner side faces of the inner supporting plate, and one end, far away from the inner supporting plate, of the support extends out of the strip.

And further: the blade is installed in inserted sheet discharge end.

And further: the punching device comprises a cutter and a concave die matched with the cutter, the cutter is driven by a motor and is arranged below the strip, the cutter is arranged above the strip, and the cutting edge of the concave die is provided with an opening facing the edge of the strip.

Further: according to the advancing path of the strip, the longitudinal heat sealing roller I is arranged in front of the longitudinal heat sealing roller II, the longitudinal heat sealing roller I is located on the upper surface of the strip, the longitudinal heat sealing roller II is located on the lower surface of the strip, heating wires are wrapped on the longitudinal heat sealing roller I and the longitudinal heat sealing roller II, a first traction roller set is arranged at the discharge end of an inserting edge forming and sectioning station of the M-edge structure, a tension adjusting roller is arranged at the discharge end of the first traction roller set, and a second traction roller set is arranged between the drawstring leading-in device and the longitudinal heat sealing roller I.

The utility model has the beneficial effects that: according to the utility model, one side of a tubular bag-shaped strip is inserted and folded into an M-edge structure, the strip is cut along the middle folding line of the M-edge structure, a notch is punched at the edge of the bag opening, the rope is threaded, and the shaping of a rope drawing accommodating cavity is completed in the uniform-speed advancing of the strip, so that the defects of the finished product of the rope drawing bag, such as folds, heat-sealing displacement and the like caused by the pause and acceleration of a film in the manufacturing process of the rope drawing bag are avoided, and the frequent acceleration, deceleration and pause are avoided because the film is in the uniform-speed motion, so that the production speed is greatly improved; meanwhile, the process flow is simple and convenient to control, and the method has prominent substantive characteristics and remarkable progress on the processing and production of the plastic stringing bag.

Drawings

Fig. 1 is a flow chart of the manufacturing process of the stringing bag of the utility model.

FIG. 2 is a schematic view of the steps of the M-side structure forming, M-side structure splitting, drawstring introduction and drawstring accommodating cavity forming process of the present invention.

Fig. 3 is a schematic view of the finished product of the stringing bag.

Fig. 4 is a schematic view of the apparatus for producing a reeving bag according to the present invention (the drawstring is double-layered).

Fig. 5 is a partially enlarged view of a portion a in fig. 4.

Fig. 6 is a partially enlarged view of fig. 4 at B.

Fig. 7 is a schematic view of the apparatus for producing a reeving bag according to the present invention (the drawstring is a single layer).

FIG. 8 is a schematic view of the insert and the inner support plate of the present invention.

Fig. 9 is a schematic view of the M-edge structure and the cut-open of the insert and the inner supporting plate according to the present invention.

In the figure, 1, strip; 2. inserting sheets; 3. a blade; 4. a first traction roller set; 5. a tension dancer roll; 6. a punching device; 601. a motor; 602, a cutter; 603. a female die; 7. drawing the rope; 8. a second traction roller set; 9. a longitudinal heat seal roller I; 10. an electric heating wire; 11. a second longitudinal heat seal roller; 12. a drawstring introduction device; 13. an inner supporting plate; 1301. a support; 14. an M-edge structure; 15. folding the edges; 16. a notch; 17. a drawstring receiving cavity; 18. longitudinally sealing edges; 19. transversely sealing edges; 20. and (5) a bag bottom.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a method for making a rope-through bag comprises the following steps:

1) forming an M-edge structure 14, and inserting and folding one side of a continuous cylindrical bag-shaped belt material into the M-edge structure 14;

2) the M-edge structure 14 is split, the formed M-edge structure 14 is cut along the middle broken line thereof to form an upper half width and a lower half width of a bag opening with a folded edge 15, and the other side of the strip material 1 is a bag bottom 20;

3) punching a drawstring extraction opening, and punching a notch 16 at the edge of the bag opening;

4) introducing a drawstring 7, advancing the strip 1 with the drawstring extraction opening punched to a drawstring introduction station, and respectively introducing the two drawstrings 7 into the folding edges 15 of the upper half and the lower half of the bag opening;

5) the drawstring accommodating cavity 17 is formed, the edge part of the corresponding folding edge 15 is taken as a longitudinal sealing edge 18, the upper half width of the bag mouth after the drawstring is introduced and the corresponding folding edge 15 are respectively sealed at the longitudinal sealing edge 18, and the lower half width of the bag mouth and the corresponding folding edge 15 are respectively sealed at the longitudinal sealing edge 18;

6) and (5) forming a bag body, and after the forming of the drawstring accommodating cavity 17 is completed, transversely sealing the belt material 1 to form a stringing bag.

Preferably: the forming of the M-edge structure 14, the splitting of the M-edge structure 14, the punching of the drawstring extraction opening, the introduction of the drawstring 7 and the forming of the drawstring accommodating cavity 17 are all completed in the uniform-speed advancing of the strip material 1.

As shown in figures 1 and 2, a tubular film is selected as a raw material for a strip material 1, one side of the strip material is inserted and folded into an M-edge structure, then the strip material is cut along a middle folding line of the M-edge structure to form an upper half width of a bag opening and a lower half width of the bag opening with a folding edge 15, the other side of the strip material is a bag bottom 20, a notch 16 is punched at the edge of the bag opening, and then a drawstring 7 is introduced, wherein the drawstring is usually a plastic tape or a plastic rope, as shown in figures 1 and 6, because the notch 16 is provided with an opening facing the bag opening, when the notch 16 is punched, when the cutter 602 cuts the strip material 1 but the cutter body of the cutter 602 does not completely penetrate through the film, because the film is flexible, the rear part of the strip material 1 can smoothly pass around the cutter body of the cutter 602, the uniform motion of the film cannot be influenced, and after the drawstring 7 is introduced, the upper half width of the bag opening and the corresponding folding edge 15 are sealed at the position of a longitudinal sealing edge 18, The lower half of the bag mouth is sealed with the corresponding folding edge at the longitudinal sealing edge 18, so that a drawstring accommodating cavity 17 for accommodating the drawstring 7 is formed at the upper half of the bag mouth and the lower half of the bag mouth, and at the moment, the drawstring 7 is visible at the gap 16. Finally, a complete stringing bag is formed through transverse sealing, and the drawstring 7 is sealed and connected with the bag opening material at the transverse sealing edge 19 during the transverse sealing.

Preferably: and 5) respectively sealing the upper half width of the bag opening and the corresponding folding edge at the sealing edge after the drawstring is introduced and sealing the lower half width of the bag opening and the corresponding folding edge at the sealing edge by adopting corresponding longitudinal heat-sealing rollers.

Preferably: in the step 6), one of a heat sealing knife device or a heat sealing point breaking device can be adopted to transversely heat seal and cut the strip material into single stringing bags or transversely heat seal and break points on the heat sealing position of the strip material to form a conjoined stringing bag, and if a point breaking knife is arranged in the heat sealing knife device, the continuous point breaking stringing bag can be manufactured; if a cutting knife is arranged in the heat sealing knife device, a single stringing bag can be manufactured.

A stringing bag production device is used for producing stringing bags, and is sequentially provided with an M-edge structure inserting edge forming and cutting station, a die-cut drawstring extraction port station, a drawstring introducing station, a drawstring accommodating cavity forming station and a bag body forming station on the path of a belt material 1, wherein the M-edge structure inserting edge forming and cutting station is provided with an M-edge structure inserting edge forming device, and a blade 3 is also arranged at the M-edge structure inserting edge forming device; the die-cut drawstring extraction opening station is provided with a die-cut device 6, the drawstring introduction station is provided with a drawstring introduction device 12, the forming station of the drawstring accommodating cavity 17 is provided with a longitudinal heat seal roller I9 and a longitudinal heat seal roller II 11, the forming station of the bag body is provided with a heat seal cutter device or a heat seal point-breaking device (not shown), and the heat seal cutter device or the heat seal point-breaking device is mature technology.

Preferably: as shown in fig. 8 and 9, the M-edge structure edge inserting forming device includes an inserting piece 2 disposed outside one side of the strip 1 and an inner supporting plate 13 disposed inside the strip 1 in a matching manner, the inner supporting plate 13 is a U-shaped structure disposed upside down, and a guiding edge of the inserting piece 2 gradually extends into the inner supporting plate 13 from a feeding end to a discharging end in the advancing direction of the strip 1.

Preferably: the inner supporting plate 13 is supported by a bracket 1301, a gap is reserved between the bracket 1301 and the two inner sides of the U-shaped inner supporting plate 13, and one end of the bracket 1301, which is far away from the inner supporting plate 13, extends out of the strip 1.

As a specific example, as shown in FIG. 8, a blade 3 is installed at the discharge end of the inserting sheet 2.

Preferably: as shown in fig. 6, the punching device 6 includes a cutter 602 and a concave die 603 adapted to the cutter 602, the cutter 602 is driven by a motor 601, where the motor 601 is a servo motor, the concave die 603 is disposed below the strip 1, the cutter 602 is disposed above the strip 1, and a cutting edge of the concave die 603 has an opening facing an edge of the strip 1, so that when the notch 16 is punched, when the cutter 602 cuts the strip 1 but a blade body of the cutter 602 does not completely penetrate through the film, since the film is flexible, a rear portion of the strip 1 can smoothly bypass the blade body of the cutter 602, so that the film can still keep a set speed and move forward at a constant speed at the punching notch 16, thereby improving production efficiency.

Preferably: as shown in fig. 4 and 7, according to the traveling path of the strip material 1, the first longitudinal heat-sealing roller 9 is arranged in front of the second longitudinal heat-sealing roller 11, the first longitudinal heat-sealing roller 9 is arranged on the upper surface of the strip material 1, the second longitudinal heat-sealing roller 11 is arranged on the lower surface of the strip material 2, the first longitudinal heat-sealing roller 9 and the second longitudinal heat-sealing roller 11 are both wrapped with heating wires 10, the first M-edge structure edge-inserting forming and cutting station discharge end is provided with a first traction roller set 4, the first traction roller set 4 discharge end is provided with a tension adjusting roller 5, and the second traction roller set 8 is arranged between the draw rope introducing device 12 and the first longitudinal heat-sealing roller 9, so that in the traveling process of the strip material 1, due to the tension of the strip material 1, the upper surface and the lower surface of the strip material 1 are respectively pressed on the first longitudinal heat-sealing roller 9 or the second longitudinal heat-sealing roller 11, the upper half of the bag mouth and the corresponding folding edge 15 are sealed at the position of the longitudinal sealing edge 18 through heating by pressure and the heating wires 10, The lower half of the bag mouth is sealed with the corresponding folding edge at the longitudinal sealing edge 18, so that a drawstring accommodating cavity 17 for accommodating the drawstring 7 is formed at the upper half of the bag mouth and the lower half of the bag mouth.

Referring to fig. 1-8, the utility model is further explained, a strip 1 is placed on a material rack, and is guided by a guide roller and then is led into a traction roller group 4, the traction roller group 4 is driven by a motor (not shown) to run at a constant speed, an M-edge structure edge inserting forming device is arranged above the traction roller group 4, wherein an inserting sheet 2 of the M-edge structure edge inserting forming device is arranged outside one side of the strip 1, an inner supporting plate 13 and the inserting sheet 2 are arranged inside the strip in a matching way, the inner supporting plate 13 is a U-shaped structure arranged in a side-inverted way, the guide edge of the inserting sheet 2 gradually extends into an inner supporting plate 13 from a feeding end to a discharging end according to the advancing direction of the strip 1, so that when the strip 1 advances, the material on one side of the strip 1 is led into the inner supporting plate 13 along with the guide edge of the inserting sheet 2 to form an M-edge structure, the discharging end of the inserting sheet 2 is provided with a blade 3 for opening, and the cutting edge of the blade 3 is positioned at the middle broken line position of the M-edge structure, when the strip with the M-edge structure passes through, the strip with the M-edge structure is cut by the blade 3 along the middle folding line of the M edge, and when the strip 1 enters the first traction roller group 4, the strip 1 is subjected to inward folding and opening, so that the upper half width of the pocket opening and the lower half width of the pocket opening of the folding edge 15 are formed.

And a tension adjusting roller 5 is arranged below the first traction roller group 4, air cylinders (not shown) are arranged on two sides of the tension adjusting roller 5 to apply pressure so as to keep the strip 1 at constant tension, and a speed sensor (not shown) is also arranged on the tension adjusting roller 5 to sense the speed change of the strip 1 and feed the speed change back to a driving motor of the first traction roller group 4, so that the front speed and the rear speed are kept consistent.

The strip 1 after passing through the tension adjusting roller 5 is pulled by the traction roller group II 8 to move forwards, a notch 16 is punched at the edge of the bag opening through the punching device 6, a cutter 602 of the punching device 6 is driven by a motor 601, a servo motor is controlled by an electric control system of the stringing bag production equipment, the motor 601 rotates rapidly for one circle at a set time to complete one-time notch 16 punching, and the strip 1 has flexibility, so that the strip can still move at a set speed at a constant speed when the notch 16 is punched, and the production efficiency is improved.

After the strip material 1 is punched, two plastic ropes or plastic belts are respectively guided into the folding edges 15 of the upper half of the bag opening and the lower half of the bag opening by the drawing rope introducing device 12, wherein when the drawing rope 7 is a plastic belt, a coiled material of a double-layer plastic belt can be adopted, as shown in figure 5, at the moment, the drawing rope introducing device 12 is arranged at the same position in a mirror manner and extends into the upper half of the bag opening and the lower half of the bag opening, and the two layers of plastic belts are respectively guided into the folding edges 15 of the upper half of the bag opening and the lower half of the bag opening; when the drawstring 7 is a plastic rope, as shown in fig. 7, the drawstring introducing device 12 can be arranged in front of and behind and respectively extend into the upper half of the bag mouth and the lower half of the bag mouth, and two plastic ropes are respectively introduced into the folding edges 15 of the upper half of the bag mouth and the lower half of the bag mouth, wherein the drawstring introducing device 2 can adopt the prior art, that is, the drawstring 7 is firstly transversely introduced into the upper half of the bag mouth and the lower half of the bag mouth by the drawstring introducing device 12, and then is turned and turned twice by the turning guide sheet on the drawstring introducing device 12 to enable the drawstring to be positioned in the folding edges 15, and the running direction of the drawstring 7 at the outlet of the drawstring introducing device 12 is consistent with the running direction of the strip 1, and the drawstring 7 can run together with the strip 1 and be wrapped in the folding edges 15.

Introduce the drawstring 7 back, draw through two 8 of traction roller set, strip 1 gets into the drawstring and holds 17 shaping stations in chamber and carry out vertical heat-seal, sets up two and indulges the heat-seal roller, promptly: a first longitudinal heat-sealing roller 9 and a second longitudinal heat-sealing roller 12, which respectively seal the upper half of the bag mouth with the corresponding folding edge 15 at the longitudinal sealing edge 18, seal the lower half of the bag mouth with the corresponding folding edge at the longitudinal sealing edge 18, thereby forming a drawstring accommodating cavity 17 for accommodating the drawstring 7 at the upper half part of the bag mouth and the lower half part of the bag mouth, the first longitudinal heat-sealing roller 9 and the second longitudinal heat-sealing roller 12 are both in synchronous belt transmission with the second traction roller group 8, so that the linear speeds of the surfaces of the first longitudinal heat-sealing roller 9, the second longitudinal heat-sealing roller 12 and the second traction roller group 8 are consistent, the surfaces of the first longitudinal heat-sealing roller 9 and the second longitudinal heat-sealing roller 12 are provided with electric heating wires 10, the shaft ends are all provided with carbon brush slip rings (not shown), a power supply is introduced, the electric heating wires 10 are electrified to generate heat, the contacted webs are heat fused at longitudinal sealing edges 18 to form a chamber 17 for the wick, and the heating wires 10 are circumferentially disposed and positioned in line with the longitudinal sealing edges 18.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stringing bag production facility which characterized in that: an M-edge structure inserting edge forming and sectioning station, a die-cut drawstring extraction port station, a drawstring introducing station, a drawstring accommodating cavity forming station and a bag body forming station are sequentially arranged on a path where a strip advances, an M-edge structure inserting edge forming device is arranged on the M-edge structure inserting edge forming and sectioning station, and a blade is further arranged at the M-edge structure inserting edge forming device; the drawing rope punching and drawing device is characterized in that a punching device is arranged at a punching drawing rope drawing opening station, a drawing rope drawing introducing device is arranged at a drawing rope introducing station, a drawing rope accommodating cavity forming station is provided with a longitudinal heat sealing roller I and a longitudinal heat sealing roller II, and a heat sealing knife device or a heat sealing point breaking device is arranged at a bag body forming station.

2. A reeving bag production apparatus as claimed in claim 1, wherein: m limit structure insert limit forming device including locate the outside inserted sheet of strip one side and pair set up in the inside interior fagging of strip, interior fagging is the U type structure that the side set up, follows according to strip advancing direction the guiding edge of inserted sheet is stretched into gradually by feed end to discharge end in the fagging.

3. A stringing bag manufacturing apparatus as claimed in claim 2, characterized in that: the inner supporting plate is supported by a support, a gap is reserved between the support and two U-shaped inner side faces of the inner supporting plate, and one end, far away from the inner supporting plate, of the support extends out of the strip.

4. A stringing bag manufacturing apparatus as claimed in claim 2, characterized in that: the blade is installed in inserted sheet discharge end.

5. A stringing bag manufacturing apparatus as claimed in claim 2, characterized in that: the punching device comprises a cutter and a concave die matched with the cutter, the cutter is driven by a motor and is arranged below the strip, the cutter is arranged above the strip, and the cutting edge of the concave die is provided with an opening facing the edge of the strip.

6. A stringing bag manufacturing apparatus as claimed in claim 1, characterized in that: according to the traveling path of the strip, the first longitudinal heat sealing roller is arranged in front of the second longitudinal heat sealing roller, the first longitudinal heat sealing roller is positioned on the upper surface of the strip, the second longitudinal heat sealing roller is positioned on the lower surface of the strip, and the first longitudinal heat sealing roller and the second longitudinal heat sealing roller are both wrapped with electric heating wires; the M-edge structure inserting edge forming and sectioning station discharge end is provided with a first traction roller set, the discharge end of the first traction roller set is provided with a tension adjusting roller, and a second traction roller set is arranged between the drawing rope introducing device and the longitudinal heat seal roller I.