A bag making machine for side zipper diaper packaging bags

Abstract

The present invention discloses a bag making machine for a side zipper type diaper packaging bag, and relates to the field of packaging technology. The present invention includes a main film overlapping unit, a zipper heat sealing unit, a triangular folding frame, a folding bottom inserting unit, a bottom inserting heat sealing unit, a portable strip welding handle unit, a heat sealing hot cutting knife mechanism, a conveying cold row mechanism and a material sorting table, which are connected in sequence. The main film overlapping unit includes a first frame, and the front side of the first frame is provided with a main film unwinding frame and a main film deviation correction unit. The present invention can be used for cutting the main film through the main film overlapping unit, and the secondary film after cutting is overlapped on the main film to provide installation space for the zipper. The zipper can be heat-sealed at the overlapped part through the zipper heat sealing unit, and then used for bag making through various subsequent units, which is conducive to the setting of the zipper, and is suitable for the production of side zipper type packaging bags. The structure is simple and is conducive to improving production efficiency, ensuring the subsequent finished product effect.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging, and in particular relates to a bag making machine for a side zipper type diaper packaging bag. Background Art

[0002] For side zipper packaging bags, only the side zipper of the entire packaging bag can be opened and closed, thereby improving the sealing of the packaging bag and facilitating the removal of internal items. For example, the application number is 202320116892.6, and the name is an invention patent for a packaging bag that can seal diapers.

[0003] The bag-making production line for this type of packaging bag is difficult to set up due to the presence of the zipper, especially since the zipper is not located at the four side corners of the packaging bag but at one side, which is even more unfavorable for the zipper's installation and thus difficult to integrate into existing paper bag equipment, affecting the production effect and efficiency of the packaging bag. Summary of the Invention

[0004] The object of the present invention is to provide a bag making machine for side zipper type diaper packaging bags, which can be used for cutting the main film through the main film overlapping unit, and overlap the cut secondary film on the main film to provide installation space for the zipper. The zipper can be heat-sealed at the overlapping part through the zipper heat sealing unit, and then used for bag making through various subsequent units, which is conducive to the setting of the zipper, and is suitable for the production of side zipper type packaging bags. It has a simple structure and is conducive to improving production efficiency, ensuring the subsequent finished product effect.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a bag-making machine for side-zipper diaper packaging bags, comprising a main film overlapping unit, a zipper heat-sealing unit, a triangular folding frame, a folding bottom inserting unit, a bottom inserting heat-sealing unit, a hand-held welding handle unit, a heat-sealing hot cutting knife mechanism, a conveying cold row mechanism and a material sorting table, which are connected in sequence.

[0007] The main film overlapping unit includes a first frame, a main film unwinding frame and a main film deflection correction frame are provided on the front side of the first frame, a tear line roller, a slitting knife, an overlapping roller and a secondary film guide line composed of a plurality of guide rollers are provided in the first frame, and an adjustment frame and a secondary film deflection correction frame connected to the secondary film guide line are provided on the top of the first frame;

[0008] The main film on the main film unwinding rack is corrected for the main film and then passes through the tear line roller and the slitting knife in sequence to set the tear line and cut out the secondary film. The secondary film is transmitted to the adjustment rack through the secondary film guide line and corrected for the secondary film before returning to the overlapping roller and overlapping with the main film output by the slitting knife. The overlapping part is at the connection between the secondary film and the main film.

[0009] The zipper heat sealing unit includes a second frame, the front and rear sides of the second frame are provided with heat sealing knife mechanisms, and the top of the second frame is fixed with a zipper guide frame;

[0010] The overlapped portion of the primary film and the secondary film output by the first frame passes through a heat-sealing knife mechanism on the front side of the second frame to form an overlapping film, and the heat-sealing line is at the position of the easy-tear line. The zipper guide frame guides the zipper along with the overlapping film to pass through the heat-sealing knife mechanism on the rear side of the second frame for heat-sealing connection, and the zipper is heat-sealed on the inner side of the overlapping portion of the overlapping film.

[0011] The triangular folding frame is used for folding the overlapping film, the bottom inserting unit is used for inserting the bottom at the fold of the overlapping film, the bottom inserting heat sealing unit is used for heat sealing the bottom inserting of the folded film, the hand-held strip welding handle unit is used for connecting the hand-held strip and the bottom inserting, the heat sealing hot cutting knife mechanism is used for cutting and blanking the folded film, the conveying cold row mechanism is used for cooling the temperature of the heat sealing part, and the material sorting table is used for sorting the finished products.

[0012] Furthermore, the main film overlapping unit and the zipper heat sealing unit are arranged horizontally and linearly on the film inlet side of the triangular folding frame, and the folding bottom insertion unit, the bottom insertion heat sealing unit, the hand-held strip welding handle unit, the heat sealing hot cutting knife mechanism and the conveying cold row mechanism are arranged vertically and linearly on the film outlet side of the triangular folding frame.

[0013] Furthermore, the material sorting table is a transversely arranged table or roller conveyor, and a feeding belt is provided between the material sorting table and the conveying cold row mechanism.

[0014] Furthermore, a heat cutting and ironing unit is provided between the portable strip welding unit and the heat sealing and hot cutting knife mechanism, and a color code photoelectric is provided between the heat cutting and ironing unit and the heat sealing and hot cutting knife mechanism.

[0015] Furthermore, the zipper is a bone zipper or a Velcro zipper, and the bone zipper is provided with a slider.

[0016] Furthermore, an ultrasonic heat sealing unit is provided between the bottom heat sealing unit and the portable strip welding handle unit, and the ultrasonic heat sealing unit is used for bottom sealing of the packaging bag.

[0017] Furthermore, when the zipper is a bone strip zipper, a slide buckle feeding unit is provided between the bottom insert heat sealing unit and the ultrasonic heat sealing unit, and a disc vibrating screen is connected to the feeding end of the slide buckle feeding unit.

[0018] Furthermore, material storage swing arm mechanisms are provided in the first frame, the bottom insertion unit at the fold, and the bottom insertion heat sealing unit. The material storage swing arm mechanism in the first frame is arranged between the main film correction and the easy-tear line roller, the material storage swing arm mechanism in the bottom insertion unit at the fold is arranged in front of the bottom insertion mechanism, and there are two material storage swing arm mechanisms in the bottom insertion heat sealing unit, which are symmetrically arranged on the front and rear sides of the heat sealing mechanism.

[0019] Furthermore, the tear line roller and the slitting knife are fixed in the first frame through a cross bar, and a roller body cooperating with the tear line roller and the slitting knife is provided in the first frame.

[0020] Furthermore, a steering roller is provided just above the heat-sealing knife mechanism on the inner rear side of the second frame, and a zipper guide groove is provided on the outer side of the steering roller.

[0021] The present invention has the following beneficial effects:

[0022] 1. The present invention can be used for slitting the main film through the main film overlapping unit, and overlap the slit secondary film on the main film to provide installation space for the zipper. The zipper can be heat-sealed at the overlapping part through the zipper heat-sealing unit, and then used for bag making through subsequent various units, which is conducive to the installation of the zipper, and is suitable for the production of side zipper packaging bags. It has a simple structure and improves production efficiency, ensuring the subsequent finished product effect.

[0023] 2. The present invention uses the design of a subsequent slide buckle feeding unit and a disc vibrating screen to automatically install the slide buckle on the zipper strip when using a bone zipper, thereby ensuring the use effect of the zipper and achieving high production efficiency.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic structural diagram of a bagging line connected to the feeding side of a triangular folding frame according to the present invention;

[0027] Figure 2 This is a schematic structural diagram of a bagging line connected to the discharge side of a triangular folding frame according to the present invention;

[0028] Figure 3 This is a block diagram of the overall material feeding principle of the present invention;

[0029] Figure 4 Schematic diagram of the cutting line and easy tear line on the main film;

[0030] Figure 5 Schematic diagram of the zipper arrangement at the overlap of the primary and secondary membranes;

[0031] Figure 6Schematic diagram of the packaging film after passing through the triangular folding frame;

[0032] Figure 7 Schematic diagram of the packaging film after inserting the bottom;

[0033] Figure 8 It is a schematic diagram of the bottom heat sealing position;

[0034] Figure 9 This is a schematic diagram of the handheld bar after connection;

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1- Main film overlapping unit, 2- Zipper heat sealing unit, 3- Triangle folding frame, 4- Folding bottom inserting unit, 5- Bottom inserting heat sealing unit, 6- Handle bar welding handle unit, 7- Heat sealing and hot cutting knife mechanism, 8- Conveying cold row mechanism, 9- Material sorting table, 10- Ultrasonic hot sealing unit, 11- Sliding buckle feeding unit, 12- Disc vibrating screen, 13- Storage swing arm mechanism, 14- Hot cutting and reinforcing ironing unit, 15- Color code photoelectric, 101- First frame, 102- Main film unwinding frame, 103- Main film deflection correction, 104- Easy tear line roller, 105- Slitting knife, 106- Overlapping roller, 107- Adjustment frame, 108- Secondary film deflection correction, 201- Second frame, 202- Heat sealing knife mechanism, 203- Zipper guide frame, 204- Zipper guide groove, 901- Feed belt. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figure 1-3 As shown, the present invention is a bag-making machine for side-zipper diaper packaging bags, comprising a main film overlapping unit 1, a zipper heat-sealing unit 2, a triangular folding frame 3, a folding bottom inserting unit 4, a bottom inserting heat-sealing unit 5, a hand-held welding handle unit 6, a heat-sealing hot cutting mechanism 7, a conveying cold row mechanism 8, and a material sorting table 9, which are connected in sequence. The main film is a packaging film with a packaging pattern provided on the surface.

[0039] The main film overlapping unit 1 includes a first frame 101, a main film unwinding frame 102 and a main film deflection correction 103 are provided on the front side of the first frame 101, an easy-tear line roller 104, a slitting knife 105, an overlapping roller 106 and a secondary film guide line composed of a plurality of guide rollers are provided inside the first frame 101, and an adjustment frame 107 connected to the secondary film guide line and a secondary film deflection correction 108 are provided on the top of the first frame 101;

[0040] Among them Figure 4 As shown, Figure 4 Schematic diagram of the slitting line and easy-tear line on the main film. The main film on the main film unwinding rack 102 passes through the main film deflection correction 103 and then passes through the easy-tear line roller 104 and the slitting knife 105 to set the easy-tear line and cut out the secondary film. The secondary film is transferred to the adjustment rack 107 and the secondary film deflection correction 108 through the secondary film guide line, and then returned to the overlapping roller 106 to overlap with the main film output by the slitting knife 105. The overlapping part is at the connection between the secondary film and the main film.

[0041] The zipper heat sealing unit 2 includes a second frame 201, a heat sealing knife mechanism 202 is provided on the front and rear sides of the second frame 201, and a zipper guide frame 203 is fixed on the top of the second frame 201;

[0042] Among them Figure 5 As shown, Figure 5 Figure 2 is a schematic diagram of a zipper arranged at the overlap of the primary and secondary films. The overlap of the primary and secondary films output by the first frame 101 passes through the heat-sealing knife mechanism 202 on the front side of the second frame 201 to form an overlapping film, with the heat-sealing line at the easy-tear line. The zipper guide frame 203 guides the zipper along with the overlapping film through the heat-sealing knife mechanism 202 on the rear side of the second frame 201 for heat-sealing. The zipper is heat-sealed to the inside of the overlapping film.

[0043] The triangular folding frame 3 is used for folding the overlapping film, such as Figure 6 The figure shows a schematic diagram of the packaging film after passing through the triangular folding frame. The bottom inserting unit 4 at the folding portion is used to insert the bottom at the folding portion of the overlapping film. Figure 7 The bottom insert heat sealing unit 5 is used to heat seal the bottom of the folded film. Figure 8 The diagram shows the heat sealing position of the insert bottom. The hand-held welding machine unit 6 is used to connect the hand-held strip and the insert bottom. Figure 9 The figure shows the schematic diagram after the hand-held strips are connected. The heat-sealing hot cutter mechanism 7 is used for cutting and blanking the folding film. The cold conveying row mechanism 8 is used to cool the temperature of the heat-sealing part. The material sorting table 9 is used for sorting the finished products.

[0044] Among them Figure 1-3 As shown, the main film overlapping unit 1 and the zipper heat sealing unit 2 are arranged horizontally and linearly on the film inlet side of the triangular folding frame 3, and the folding bottom insertion unit 4, the bottom insertion heat sealing unit 5, the hand-held strip welding handle unit 6, the heat sealing hot cutting knife mechanism 7 and the conveying cold row mechanism 8 are arranged longitudinally and linearly on the film outlet side of the triangular folding frame 3.

[0045] Among them Figure 2 As shown, the material sorting table 9 is a horizontally arranged table or roller conveyor, and a feeding belt 901 is provided between the material sorting table 9 and the conveying cold row mechanism 8.

[0046] Among them Figure 2As shown, a heat cutting and ironing unit 14 is provided between the hand-held welding unit 6 and the heat sealing and hot cutting knife mechanism 7 , and a color code photoelectric device 15 is provided between the heat cutting and ironing unit 14 and the heat sealing and hot cutting knife mechanism 7 .

[0047] The zipper is a bone zipper or a Velcro zipper, and the bone zipper is provided with a sliding buckle.

[0048] Among them Figure 2 As shown, an ultrasonic heat sealing unit 10 is provided between the bottom heat sealing unit 5 and the hand strip welding unit 6. The ultrasonic heat sealing unit 10 is used for bottom sealing of the packaging bag, that is, heat sealing between the main film and the secondary film away from the bottom.

[0049] Among them Figure 2-3 As shown, when the zipper is a bone strip zipper, a slide buckle feeding unit 11 is provided between the bottom heat sealing unit 5 and the ultrasonic hot sealing unit 10 , and a disc vibrating screen 12 is connected to the feeding end of the slide buckle feeding unit 11 .

[0050] Among them Figure 1-2 As shown, a material storage swing arm mechanism 13 is provided in the first frame 101, in the bottom insertion unit 4 at the folding portion, and in the bottom insertion heat sealing unit 5. The material storage swing arm mechanism 13 in the first frame 101 is arranged between the main film correction 103 and the easy-tear line roller 104, the material storage swing arm mechanism 13 in the bottom insertion unit 4 at the folding portion is arranged in front of the bottom insertion mechanism, and there are two material storage swing arm mechanisms 13 in the bottom insertion heat sealing unit 5, which are symmetrically arranged in the front and rear sides of the heat sealing mechanism.

[0051] The easy-tear line roller 104 and the slitting knife 105 are fixed in the first frame 101 through a cross bar, and a roller body that cooperates with the easy-tear line roller 104 and the slitting knife 105 is provided in the first frame 101.

[0052] Among them Figure 1 As shown, a steering roller is provided just above the heat-sealing knife mechanism 202 on the inner rear side of the second frame 201 , and a zipper guide groove 204 is provided on the outer side of the steering roller.

[0053] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bag making machine for side zipper diaper packaging bags, characterized by: It comprises a main film overlapping unit (1), a zipper heat sealing unit (2), a triangular folding frame (3), a folding bottom inserting unit (4), a bottom inserting heat sealing unit (5), a hand-held strip welding unit (6), a heat sealing hot cutting knife mechanism (7), a conveying cold row mechanism (8) and a material sorting table (9) which are connected in sequence; The main film overlapping unit (1) comprises a first frame (101), a main film unwinding frame (102) and a main film deflection correction (103) are provided on the front side of the first frame (101), a tear line roller (104), a slitting knife (105), an overlapping roller (106) and a secondary film guide line composed of a plurality of guide rollers are provided in the first frame (101), and an adjustment frame (107) and a secondary film deflection correction (108) connected to the secondary film guide line are provided on the top of the first frame (101); The tear line roller (104) and the slitting knife (105) are fixed in the first frame (101) via a crossbar, and a roller body cooperating with the tear line roller (104) and the slitting knife (105) is provided in the first frame (101); The zipper heat sealing unit (2) comprises a second frame (201), the front and rear sides of the second frame (201) are both provided with heat sealing knife mechanisms (202), and a zipper guide frame (203) is fixed on the top of the second frame (201); An ultrasonic heat sealing unit (10) is provided between the bottom heat sealing unit (5) and the hand-held welding handle unit (6), and a sliding buckle feeding unit (11) is provided between the bottom heat sealing unit (5) and the ultrasonic heat sealing unit (10). The feeding end of the sliding buckle feeding unit (11) is connected to a disc vibrating screen (12).

2. A bag making machine for side zipper diaper packaging bags according to claim 1, characterized in that: The main film overlapping unit (1) and the zipper heat sealing unit (2) are arranged linearly on the film inlet side of the triangular folding frame (3), and the folding bottom inserting unit (4), the bottom inserting heat sealing unit (5), the hand-held strip welding handle unit (6), the heat sealing hot cutting knife mechanism (7) and the conveying cold row mechanism (8) are arranged linearly on the film outlet side of the triangular folding frame (3).

3. The side zipper diaper packaging bag making machine according to claim 2, characterized in that: The material sorting platform (9) is a transversely arranged platform or roller conveyor, and a feeding belt (901) is provided between the material sorting platform (9) and the conveying cold row mechanism (8).

4. The side zipper diaper packaging bag making machine according to claim 1, characterized in that: A heat cutting and ironing unit (14) is provided between the hand-held welding unit (6) and the heat sealing and hot cutting knife mechanism (7), and a color code photoelectric device (15) is provided between the heat cutting and ironing unit (14) and the heat sealing and hot cutting knife mechanism (7).

5. The side zipper diaper packaging bag making machine according to claim 1, characterized in that: The first frame (101), the bottom inserting unit (4) at the folding position, and the bottom inserting heat sealing unit (5) are all provided with a material storage swing arm mechanism (13). The material storage swing arm mechanism (13) in the first frame (101) is arranged between the main film deviation correction (103) and the easy-tear line roller (104). The material storage swing arm mechanism (13) in the bottom inserting unit (4) at the folding position is arranged in front of the bottom inserting mechanism. There are two material storage swing arm mechanisms (13) in the bottom inserting heat sealing unit (5) and they are symmetrically arranged in front and rear of the heat sealing mechanism.

6. The side zipper diaper packaging bag making machine according to claim 1, characterized in that: A steering roller is provided just above the heat-sealing knife mechanism (202) on the inner rear side of the second frame (201), and a zipper guide groove (204) is provided on the outer side of the steering roller.

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