Flat mouth food bag mouth folding mechanism

Abstract

The utility model discloses a kind of flat mouth food bag bag mouth folding mechanism, relate to food processing technical field.A kind of flat mouth food bag bag mouth folding mechanism, including base and the folding mechanism of being fixed on base;Folding mechanism includes: horizontal moving unit, fixed base, vertical guide column and conveying unit.The utility model is matched with the cooperation of each structure, realizes the accurate adaptation of multiple bag types;Symmetrical arrangement conveying unit can apply continuous, uniform pressure to bag mouth fold mark, effectively overcome material resilience, ensure that fold mark depth is consistent, form stable;The mechanism significantly improves bag mouth shaping quality and production line smoothness.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, specifically to a folding mechanism for the opening of a flat-mouthed food bag. Background Technology

[0002] As a common carrier in the food packaging industry, the quality of the bag opening formation directly determines the packaging's sealing performance, appearance regularity, and safety. Among the various processes involved in bag opening formation, the bag opening folding process is crucial. Inward folding, in particular, has been widely used in the production of various types of flat-mouth food bags because it effectively reduces roughness at the bag opening edges and improves the sealing reliability of the heat-sealed area.

[0003] Currently, the mainstream methods for folding the opening of flat-mouth food bags mainly include the following: folding inward at both corners of the bag opening, folding inward on one side of the bag opening, folding inward symmetrically on both sides of the bag opening, folding inward in a stepped manner, and folding inward in a curved shape. To automate these folding methods, the industry has developed a mature folding mechanism system consisting of units such as conveying and positioning, folding execution, and preliminary guidance.

[0004] However, in the subsequent processing after the folding process, a long-standing key technical problem has remained unresolved: the shape of the bag opening fold, initially formed by the folding mechanism, is mainly maintained temporarily by mechanical guidance, and the intermolecular forces of the material itself are insufficient to form a stable crease. This makes the bag opening highly susceptible to problems such as folding deviation, edge curling, or shallowing of the crease during subsequent conveying due to equipment vibration, its own weight, or the elasticity and moisture regain of the material, affecting the quality stability of the subsequent heat-sealing process.

[0005] Therefore, in the production of flat-mouth food bags, how to provide a device that can effectively shape the bag opening edge that has already undergone preliminary inward folding is a technical problem that those skilled in the art need to solve.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] To address the aforementioned technical problems, this utility model provides a folding mechanism for the opening of a flat-mouth food bag, thereby resolving the issues raised in the background section.

[0008] This utility model provides the following technical solution: a folding mechanism for the opening of a flat-mouth food bag, including a base and a folding mechanism fixed on the base; the folding mechanism includes: a horizontal moving unit, a fixed base, a vertical guide column and a conveying unit;

[0009] The horizontal moving unit includes a fixed block, a guide shaft, an adjusting block, a screw, a fixed plate, and a rotating handle.

[0010] The fixing block consists of two blocks, which are fixed at a distance from each other on the top of the base;

[0011] The guide shaft consists of two shafts, which are fixedly inserted through two fixed blocks;

[0012] The adjustment block consists of two blocks, which slide and fit on two guide shafts.

[0013] The screw consists of two screws, each screw being screwed onto the adjusting block on the same side.

[0014] The fixing plate consists of two pieces, each fixing plate being fixed to the ends of the two guide shafts on the same side and screwed to the screw on the same side; the rotating handle is fixed to the screw.

[0015] Each side of the adjustment block has two vertically spaced guide posts fixed at intervals; the upper ends of the two vertical guide posts on the same side are fixed with fixing seats.

[0016] Each side of the fixed base is equipped with a conveying unit, and the gap between the two conveying units forms the working area for crease shaping of the flat-mouth food bag.

[0017] Preferably, a second screw is vertically screwed onto the adjusting block between the two vertical guide posts, and the second screw does not intersect with the first screw;

[0018] The lower ends of the two vertical guide posts are fixed with a fixing plate 2, and the screw 2 is threaded downward through the fixing plate 2. The lower end of the screw 2 is fixed with a rotating handle 2.

[0019] Preferably, the conveying unit includes a fixed frame fixed on a fixed base, a driving roller and a driven roller rotatably connected to the fixed frame, and a conveyor belt drively connected to the driving roller and the driven roller; the conveying surface of the conveyor belt is arranged vertically.

[0020] Preferably, it also includes a motor fixed on a fixed base, and the motor is connected to the drive roller.

[0021] The folding mechanism for the opening of a flat-mouth food bag provided in this embodiment of the invention has the following beneficial effects: Through the cooperation and coordination of various structures, this invention achieves precise adaptation to various bag types; its symmetrically arranged conveying units can apply continuous and uniform pressure to the folds at the bag opening, effectively overcoming material rebound and ensuring consistent fold depth and stable shape; this mechanism significantly improves the quality of bag opening shaping and the smoothness of production line connection. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the present invention from angle one;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model from angle two;

[0024] Figure 3 This is a structural schematic diagram of angle three of this utility model. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figures 1-3 To address the problems mentioned in the background section, this utility model provides a folding mechanism for the opening of a flat-mouth food bag to solve the aforementioned technical problems. The technical solution is as follows:

[0027] A folding mechanism for the opening of a flat-mouth food bag includes a base 100 and a folding mechanism 200 fixed on the base 100; the folding mechanism 200 includes: a horizontal moving unit, a fixed seat 240, a vertical guide column 221 and a conveying unit 230.

[0028] The horizontal moving unit includes a fixed block 264, a guide shaft 261, an adjusting block 210, a screw 262, a fixed plate 263, and a rotating handle 270.

[0029] The fixing block 264 includes two blocks, which are fixed at intervals on the top of the base 100;

[0030] The guide shaft 261 includes two shafts, which are fixedly inserted through two fixing blocks 264;

[0031] The adjustment block 210 includes two blocks, which are slidably fitted on two guide shafts 261;

[0032] The screw 262 includes two screws, each screw 262 being screwed onto the adjusting block 210 on the same side;

[0033] The fixing plate 263 includes two pieces, each fixing plate 263 is fixed to the ends of the two guide shafts 261 on the same side and screwed to the screw 262 on the same side; the rotating handle 270 is fixed on the screw 262.

[0034] Two vertical guide posts 221 are fixed vertically at intervals on each side of the adjustment block 210; a fixing seat 240 is fixed at the upper end of the two vertical guide posts 221 on the same side.

[0035] Each side of the fixing base 240 is provided with a conveying unit 230, and the gap between the two conveying units 230 forms the working area for crease shaping of the flat-mouth food bag.

[0036] In this embodiment, a second screw 222 is vertically screwed onto the adjustment block 210 between two vertical guide posts 221, and the second screw 222 does not intersect with the first screw 262;

[0037] The lower ends of the two vertical guide posts 221 are fixed with a fixing plate 223, and the screw 222 threaded downward through the fixing plate 223. The lower end of the screw 222 is fixed with a rotating handle 224.

[0038] In this embodiment, the conveying unit 230 includes a fixed frame fixed on the fixed base 240, an active roller and a driven roller rotatably connected to the fixed frame, and a conveyor belt drively connected to the active roller and the driven roller; the conveying surface of the conveyor belt is arranged vertically.

[0039] In this embodiment, a motor 250 is also included, which is fixed on the mounting base 240 and is connected to the drive roller.

[0040] The method of using the folding mechanism for the opening of a flat-mouth food bag provided in this embodiment is as follows:

[0041] (1) By rotating the rotation of both sides, the screw 262 on the same side is driven to rotate by the rotation of the two sides. Then, the two side adjustment blocks 210 respectively drive the vertical guide column 221, the fixed seat 240 and the conveying unit 230 on the same side to move synchronously until the gap between the two conveying units 230 meets the operation requirements, ensuring that the bag opening can be stably embedded and subjected to uniform pressure.

[0042] (2) Rotate the rotating handle 224 on the rotating adjustment block 210 to drive the screw 222 to rotate. Since the screw 222 is vertically screwed on the adjustment block 210 and its lower end passes through the fixing plate 223 fixed at the lower end of the vertical guide post 221, the rotation of the screw 222 will drive the vertical guide post 221 to rise and fall vertically, and then drive the conveyor unit 230 to rise and fall synchronously through the fixing seat 240, so that the height of the conveyor belt of the conveyor unit is precisely aligned with the key area of ​​the bag opening crease, ensuring that the indentation is applied to the core position.

[0043] (3) After debugging, start the motor 250 fixed on the fixed seat 240. The motor 250 drives the active roller of the conveying unit 230 to rotate. The active roller drives the driven roller to rotate synchronously through the conveyor belt. The conveyor belts of the two conveying units turn in opposite directions. The inner conveyor belts both rotate towards the center of the working area to provide power for the conveying and creasing of the bag opening.

[0044] (4) When the bag opening is fully inside the working area, the conveyor belts of the two conveyor units apply continuous and uniform clamping pressure to the bag opening. This pressure acts on the folded edge formed by the initial inward fold, forcing the material at the folded edge to form a stable folding indentation, effectively counteracting the elastic rebound tendency of the material.

[0045] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A folding mechanism for the opening of a flat-mouth food bag, characterized in that, It includes a base and a folding mechanism fixed on the base; the folding mechanism includes: a horizontal moving unit, a fixed base, a vertical guide column, and a conveying unit; The horizontal moving unit includes a fixed block, a guide shaft, an adjusting block, a screw, a fixed plate, and a rotating handle. The fixing block consists of two blocks, which are fixed at a distance from each other on the top of the base; The guide shaft consists of two shafts, which are fixedly inserted through two fixed blocks; The adjustment block consists of two blocks, which slide and fit on two guide shafts. The screw consists of two screws, each screw being screwed onto the adjusting block on the same side. The fixing plate consists of two pieces, each fixing plate being fixed to the ends of the two guide shafts on the same side and screwed to the screw on the same side; the rotating handle is fixed to the screw. Each side of the adjustment block has two vertically spaced guide posts fixed at intervals; the upper ends of the two vertical guide posts on the same side are fixed with fixing seats. Each side of the fixed base is equipped with a conveying unit, and the gap between the two conveying units forms the working area for crease shaping of the flat-mouth food bag.

2. The folding mechanism for the opening of a flat-mouth food bag according to claim 1, characterized in that, A second screw is vertically screwed onto the adjusting block between the two vertical guide posts, and the second screw does not intersect with the first screw; The lower ends of the two vertical guide posts are fixed with a fixing plate 2, and the screw 2 is threaded downward through the fixing plate 2. The lower end of the screw 2 is fixed with a rotating handle 2.

3. The folding mechanism for the opening of a flat-mouth food bag according to claim 2, characterized in that, The conveying unit includes a fixed frame fixed on a fixed base, a driving roller and a driven roller rotatably connected to the fixed frame, and a conveyor belt drively connected to the driving roller and the driven roller; the conveying surface of the conveyor belt is arranged vertically.

4. The folding mechanism for the opening of a flat-mouth food bag according to claim 3, characterized in that, It also includes a motor fixed on a mounting base, which is connected to the drive roller.

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