Edge sealing reinforced paper-plastic composite bag sealing device

Abstract

The utility model relates to packing bag sealing technology field, specifically disclose an edge sealing reinforced paper plastic composite bag sealing device, including mounting support, crossbeam and workstation, the mounting support is set up in pairs and the workstation is fixed between two mounting supports through crossbeam, the upper end of two mounting supports is connected and fixed with roof beam in common, the bottom surface symmetry of roof beam is equipped with two telescopic pneumatic cylinders, the output of two telescopic pneumatic cylinders is connected with flat push subassembly in common, and the below of flat push subassembly is equipped with shaping subassembly, is used for cooperating flat push subassembly and carries out the shaping treatment to bag mouth, improves the sealing effect after bag mouth sealing.

Description

Technical Field

[0001] This utility model belongs to the field of packaging bag sealing technology, specifically relating to a paper-plastic composite bag sealing device with edge sealing reinforcement. Background Technology

[0002] Paper-plastic composite bags are made of plastic and kraft paper. The plastic layer is typically made of woven polypropylene (PP) or polyethylene (PE) as the base material, while the kraft paper is made of refined composite kraft paper, featuring high strength, good water resistance, and an attractive appearance. However, most current paper-plastic composite bag sealing devices are simple compression designs with thin openings, resulting in limited sealing strength and a tendency to leak or crack, affecting the bag's effectiveness. Utility Model Content

[0003] The purpose of this utility model is to provide a paper-plastic composite bag sealing device with edge sealing reinforcement, so as to solve the problem that most of the existing paper-plastic composite bag sealing devices are simple compression designs with thin bag openings combined together, resulting in limited sealing strength after the packaging bag is sealed, and problems such as leakage and cracking are easy to occur.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sealing device for paper-plastic composite bags with enhanced edge sealing includes mounting brackets, a crossbeam, and a worktable. The mounting brackets are arranged in pairs, and the worktable is fixed between the two mounting brackets via the crossbeam. The upper ends of the two mounting brackets are connected to and fixed with a top beam. Two telescopic cylinders are symmetrically mounted on the bottom surface of the top beam. The output ends of the two telescopic cylinders are connected to a flat pushing component. A shaping component is installed below the flat pushing component to cooperate with the flat pushing component to shape the bag opening and improve the sealing effect after the bag opening is sealed.

[0006] Preferably, the push assembly includes a mounting housing, with side plates installed at both ends of the mounting housing. A limiting rod is fixedly mounted between the two side plates. A movable block is sleeved and slidably connected to the limiting rod. A screw is inserted through the movable block. A servo motor is mounted on the side of one of the side plates. The output end of the servo motor is fixedly connected to the end of the screw via a coupling.

[0007] Preferably, the movable block has an internally threaded through hole, and the screw is inserted and threadedly installed in the internally threaded through hole.

[0008] Preferably, the shaping component includes a connecting block, a short column, and a shaping pressure plate. The connecting block is fixedly connected to the side of the movable block, the short column is installed on the bottom surface of the connecting block, and the shaping pressure plate is fixedly connected to the end of the short column away from the connecting block. Two shaping edge plates are symmetrically installed at both ends of the shaping pressure plate.

[0009] Preferably, the inner bottom of the mounting housing has a narrow passage for movement, and the short column is inserted into and movably connected to the narrow passage for movement.

[0010] Preferably, the shaping edge plate includes a rectangular block inserted into the end of the shaping pressure plate. A metal shell is detachably installed on the side of the rectangular block. The metal shell has a U-shaped cross-section. Two limiting grooves are symmetrically opened on both sides of the rectangular block. Limiting blocks are inserted into and slidably connected in the two limiting grooves, and the opposite ends of the two limiting blocks are fixedly connected to the inner surface sidewall of the metal shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model involves placing a sealing strip at the bag opening, having a cooperating person perform double-layer folding of the bag opening, folding the sealing strip into the folded edge, applying glue, and finally using a flat-pushing shaping component to shape and reinforce the folded edge of the bag opening, thereby ensuring the structural strength of the bag after packaging and reducing the occurrence of leaks and cracks at the bag opening.

[0013] 2. This utility model divides the shaping main body of the shaping component into a single shaping pressure plate and two shaping side plates. The two metal shells on the sides of the two shaping side plates can be replaced, thereby keeping the shaping component clean during the shaping process, avoiding accidental influences caused by glue, ensuring the regularity of the shaping, and meeting the design requirements. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the horizontal pushing component of this utility model;

[0016] Figure 3 This is an exploded view of the structure of the flat-push component and the shaping component of this utility model;

[0017] Figure 4 This is an anatomical diagram of the shaping component of this utility model.

[0018] In the picture:

[0019] 1. Mounting bracket; 2. Crossbeam; 3. Workbench; 4. Top beam; 5. Telescopic cylinder; 6. Horizontal push assembly; 61. Mounting housing; 611. Narrow travel opening; 62. Side plate; 63. Servo motor; 64. Screw; 65. Limiting rod; 66. Movable block; 7. Shaping assembly; 71. Connecting block; 72. Short column; 73. Shaping pressure plate; 74. Shaping side plate; 741. Rectangular block; 742. Thin metal shell; 743. Limiting groove; 744. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4 As shown, this utility model provides a paper-plastic composite bag sealing device with edge sealing reinforcement, including a mounting bracket 1, a crossbeam 2, and a workbench 3. The mounting brackets 1 are arranged in pairs, and the workbench 3 is fixed between the two mounting brackets 1 through the crossbeam 2. The upper ends of the two mounting brackets 1 are connected and fixed to a top beam 4. Two telescopic cylinders 5 are symmetrically installed on the bottom surface of the top beam 4. The output ends of the two telescopic cylinders 5 are connected to a flat pushing component 6. The telescopic cylinders 5 realize the lowering of the flat pushing component 6, thereby achieving the purpose of pressing and shaping. A shaping component 7 is installed below the flat pushing component 6 to cooperate with the flat pushing component 6 to shape the bag opening and improve the sealing effect after the bag opening is sealed.

[0022] The push assembly 6 includes a mounting housing 61, with side plates 62 installed at both ends of the mounting housing 61. A limiting rod 65 is fixedly mounted between the two side plates 62. A movable block 66 is sleeved and slidably connected to the limiting rod 65. A screw 64 is inserted into the movable block 66. A servo motor 63 is mounted on the side of one of the side plates 62. The output end of the servo motor 63 is fixedly connected to the end of the screw 64 through a coupling. Specifically, the servo motor 63 drives the screw 64 to rotate forward and backward, which causes the movable block 66 to reciprocate within the mounting housing 61, thereby driving the shaping assembly 7 to shape and reinforce the folded edge of the bag opening. An internal threaded through hole is opened in the movable block 66, and the screw 64 is inserted and threaded into the internal threaded through hole. Therefore, by placing a sealing strip at the bag opening, and having the operator double-fold the bag opening, the sealing strip can be folded into the fold. With the application of glue, the shaping component 7 can finally be used to shape and reinforce the fold at the bag opening, thereby ensuring the structural strength of the bag after packaging and reducing the occurrence of leaks and cracks at the bag opening.

[0023] In a further embodiment, refer to Figure 3 and Figure 4The shaping component 7 includes a connecting block 71, a short column 72, and a shaping pressure plate 73. The connecting block 71 is fixedly connected to the side of the movable block 66, so that the reciprocating motion of the movable block 66 can drive the shaping component 7 to reciprocate for shaping. The short column 72 is installed on the bottom surface of the connecting block 71. The shaping pressure plate 73 is fixedly connected to the end of the short column 72 away from the connecting block 71, and two shaping side plates 74 are symmetrically installed at both ends of the shaping pressure plate 73. The inner bottom of the mounting housing 61 is provided with a narrow passage 611, and the short column 72 is inserted and movably connected in the narrow passage 611.

[0024] In this embodiment, the shaping plate 73 and the two shaping edge plates 74 can shape and strengthen the folded edge of the bag opening, thereby ensuring the structural strength of the bag after packaging and reducing the occurrence of leakage and cracking of the bag opening.

[0025] In a further embodiment, refer to Figure 4 The shaping plate 74 includes a rectangular block 741 inserted into the end of the shaping pressure plate 73. A metal shell 742 is detachably installed on the side of the rectangular block 741. The metal shell 742 has a U-shaped cross-section and fits snugly with three sides of the rectangular block 741. Two limiting grooves 743 are symmetrically opened on both sides of the rectangular block 741. Limiting blocks 744 are inserted into and slidably connected in the two limiting grooves 743 respectively, and the opposite ends of the two limiting blocks 744 are fixedly connected to the inner surface sidewall of the metal shell 742.

[0026] In this embodiment, the shaping main body in the shaping component 7 is divided into a single shaping pressure plate 73 and two shaping side plates 74, and the two metal shells 742 on the sides of the two shaping side plates 74 can be replaced, thereby keeping the shaping component 7 clean throughout the shaping process.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing device for paper-plastic composite bags with reinforced edge sealing, comprising a mounting bracket (1), a crossbeam (2), and a worktable (3), characterized in that, The mounting brackets (1) are arranged in pairs and the workbench (3) is fixed between the two mounting brackets (1) by a crossbeam (2). The upper ends of the two mounting brackets (1) are connected and fixed with a top beam (4). Two telescopic cylinders (5) are symmetrically installed on the bottom surface of the top beam (4). The output ends of the two telescopic cylinders (5) are connected to a flat push assembly (6). A shaping assembly (7) is installed below the flat push assembly (6) to cooperate with the flat push assembly (6) to shape the bag opening and improve the sealing effect after the bag opening is sealed.

2. The sealing device for a paper-plastic composite bag with reinforced edge sealing according to claim 1, characterized in that: The push assembly (6) includes a mounting housing (61), with side plates (62) installed at both ends of the mounting housing (61). A limiting rod (65) is fixedly mounted between the two side plates (62). A movable block (66) is sleeved and slidably connected to the limiting rod (65). A screw (64) is inserted into the movable block (66). A servo motor (63) is mounted on the side of one of the side plates (62). The output end of the servo motor (63) is fixedly connected to the end of the screw (64) through a coupling.

3. The sealing device for a paper-plastic composite bag with reinforced edge sealing according to claim 2, characterized in that: The movable block (66) has an internal threaded through hole, and the screw (64) is inserted and threaded into the internal threaded through hole.

4. The sealing device for a paper-plastic composite bag with reinforced edge sealing according to claim 2, characterized in that: The shaping component (7) includes a connecting block (71), a short column (72), and a shaping plate (73). The connecting block (71) is fixedly connected to the side of the movable block (66). The short column (72) is installed on the bottom surface of the connecting block (71). The shaping plate (73) is fixedly connected to the end of the short column (72) away from the connecting block (71). Two shaping edge plates (74) are symmetrically installed at both ends of the shaping plate (73).

5. The sealing device for a paper-plastic composite bag with reinforced edge sealing according to claim 4, characterized in that: The inner bottom of the mounting housing (61) is provided with a narrow passage (611), and the short column (72) is inserted and movably connected in the narrow passage (611).

6. The paper-plastic composite bag sealing device with edge sealing reinforcement according to claim 4, characterized in that: The shaping plate (74) includes a rectangular block (741) inserted into the end of the shaping pressure plate (73). A metal shell (742) is detachably installed on the side of the rectangular block (741). The metal shell (742) has a U-shaped cross-section. Two limiting grooves (743) are symmetrically opened on both sides of the rectangular block (741). Limiting blocks (744) are inserted and slidably connected in the two limiting grooves (743). The opposite ends of the two limiting blocks (744) are fixedly connected to the inner surface sidewall of the metal shell (742).

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