Film forming guide device for multi-column packaging machine

Abstract

The utility model discloses a film forming guide device for a multi-column packaging machine, which comprises a forming base and a guide seat, butt joint shafts are respectively arranged on two sides of the forming base, butt joint lug parts are respectively arranged on two sides of the guide seat, a first accommodating concave position is arranged on the front side surface of the forming base, a second accommodating concave position is arranged on the back surface of the guide seat, and the first accommodating concave position and the second accommodating concave position are mutually matched. The butt joint lug part is inserted into the butt joint shaft so that the guide base can be hung on the forming base, a forming channel can be movably formed between the first containing concave position and the second containing concave position, the top of the guide base is downwards provided with a film passing groove in a penetrating mode, and the front side face of the guide base is inwards provided with an operation window. Compared with the prior art, the device has the beneficial effects that the guide seat is hung on the forming base, so that the device has a quick dismounting function, dismounting and mounting for later maintenance are facilitated, a film is supported, film feeding is smoother, meanwhile, offset generated by long-distance conveying is reduced, and it is ensured that the two side edges of a semi-formed strip-shaped bag are always aligned.

Description

Technical Field

[0001] This utility model relates to the technical field of multi-row packaging equipment, and in particular to a film forming guide device for a multi-row packaging machine. Background Technology

[0002] In multi-row packaging machines, collar-type forming units are widely used to gradually wind flat film rolls into a cylindrical shape for subsequent longitudinal (back) and transverse sealing, ultimately producing strip-shaped packaging bags. In existing technology, the film travel distance between the forming unit and the back sealing device (i.e., the path length of the film from completion of winding to heat sealing) is crucial for forming stability. When producing strip-shaped bags with larger widths, to ensure the film is fully and smoothly wound and formed, avoiding wrinkles or twists, it is usually necessary to increase the cone length of the forming unit or adjust the forming curve, which directly leads to an increase in the film travel distance. However, the increase in film travel distance brings a series of technical problems that urgently need to be solved:

[0003] First, during long-distance transport, the film is more prone to deviation, shaking, or stagnation due to uneven tension, friction, or its own flexibility, which affects the smoothness and stability of film feeding and thus threatens the reliability of continuous production.

[0004] Secondly, the longer film path makes the film threading operation more complicated and difficult. Operators need to guide the film through the longer path and accurately align it with the subsequent back sealing device. This not only increases the operation time and labor intensity, but also increases the probability of errors when threading the film for the first time or changing the film roll.

[0005] Furthermore, during long-distance downward transport, the two longitudinal sides of the film that have been rolled up but not yet heat-sealed are prone to relative displacement or misalignment due to uneven stress, gravity, or airflow, making it difficult to maintain a flush position. Uneven sides will directly affect the sealing quality of the back seal, potentially leading to poor sealing, insufficient strength, or appearance defects.

[0006] To address the aforementioned technical issues, existing technologies typically employ fixed guide rods, fixing plates, or simple brackets to guide and support the film. However, fixed guiding devices are difficult to adjust quickly and flexibly according to different film materials or bag width specifications. Any minor adjustment may require loosening or removing multiple fasteners, or even disassembling parts of the structure. The debugging work is time-consuming and labor-intensive, and cannot meet the flexible production needs of multiple specifications and small batches. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a film forming guide device for a multi-row packaging machine.

[0008] To achieve the above objectives, this utility model discloses a film forming guide device for a multi-row packaging machine, including a forming base and a guide seat. The forming base is fixedly provided with docking shafts on both sides, and the guide seat is fixedly provided with docking ears on both sides.

[0009] The front side of the forming base is provided with a first receiving recess, and the back side of the guide seat is provided with a second receiving recess. The back side of the guide seat slides from top to bottom along the front side of the forming base until the docking ear is inserted into the docking shaft so that the guide seat is mounted on the forming base, and the first receiving recess and the second receiving recess are movable to form a forming channel. The top of the guide seat is provided with a through-membrane groove extending downwards. One end of the through-membrane groove is connected to the second receiving recess. The semi-formed strip bag formed by the collar forming device passes through the forming channel, and its two sides pass through the through-membrane groove, which serves as a guide and limiter.

[0010] An operation window is provided on the front side of the guide seat, and the operation window passes through the membrane groove and communicates with the second receiving recess.

[0011] Furthermore, the docking lug is provided with a slot, which is inserted into the docking shaft.

[0012] Furthermore, the first and second accommodating recesses are semi-circular so that the shape of the forming channel corresponds to the semi-formed strip bag and serves as a guide.

[0013] Furthermore, the diameters of the first accommodating recess and the second accommodating recess correspond to each other.

[0014] Furthermore, it also includes a pair of first clamping blocks and a pair of second clamping blocks. The pair of first clamping blocks are symmetrically arranged above the film-passing groove, and the pair of second clamping blocks are symmetrically arranged in the operation window with the film-passing groove as the center. The first clamping blocks and the second clamping blocks respectively support the two sides of the semi-formed strip bag located in the film-passing groove.

[0015] Furthermore, the front side of the guide seat is provided with a membrane fixing hole, and the first membrane block is provided with an adjustment groove, which slides along the membrane fixing hole and is fixedly connected by screws.

[0016] The left and right sides of the guide seat are respectively provided with receiving slots, and a pair of second clamping blocks are respectively slidably disposed in the two receiving slots of the guide seat.

[0017] Furthermore, the gap between a pair of first clamping blocks forms a first clamping channel, and the gap between a pair of second clamping blocks forms a second clamping channel. The first clamping channel and the second clamping channel are respectively connected to the membrane groove.

[0018] Furthermore, the height within the accommodating slot is equal to the height of the second clamping block.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The guide seat adopts a connection structure that is hung on the molded base, which enables the device to have a quick-release function and facilitates disassembly and assembly for later maintenance.

[0021] 2. The film-passing groove of this guiding device, together with the first film clamping block and the second film clamping block, provides support for the film, making the film flow smoother and reducing the offset caused by long-distance transportation, ensuring that the two sides of the semi-formed strip bag are always aligned.

[0022] 3. The operation window design creates an open operating space on the guide seat, facilitating membrane insertion. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this embodiment;

[0024] Figure 2 This is an exploded view showing the connection between the guide seat and the molding base in this embodiment;

[0025] Figure 3 This is a top view of the guide seat being mounted on the molding base in this embodiment;

[0026] Figure 4 This is a schematic diagram of the guide seat in this embodiment. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will be combined with... Figures 1-4 The accompanying drawings provide a further detailed description of this utility model.

[0028] Reference Figure 1 and Figure 2 As shown, a film forming guide device for a multi-row packaging machine includes a forming base 1, a guide seat 2, a pair of first clamping film blocks 3, and a pair of second clamping film blocks 4. The forming base 1 is fixedly mounted on the frame of the multi-row packaging machine (not shown in the figure) by bolts. The guide seat 2 is detachably mounted on the front side of the forming base 1, so that a forming channel 5 is formed between the front side of the forming base 1 and the back side of the guide seat 2. In this embodiment, the forming channel 5 is circular.

[0029] A docking shaft 11 is horizontally fixed on both sides of the molding base 1, and a docking ear 21 is provided on both sides of the guide seat 2. A slot 22 is provided on the docking ear 21. In this embodiment, the slot 22 is inverted U-shape. In use, the back of the guide seat 2 slides from top to bottom along the front side of the molding base 1 until the slot 22 is inserted into the docking shaft 11 so that the guide seat 2 is mounted on the front side of the molding base 1. At this time, the back of the guide seat 2 is in close contact with the front side of the molding base 1.

[0030] The movable connection structure between the molding base 1 and the guide seat 2 in this embodiment enables quick disassembly, facilitating disassembly and assembly for later maintenance.

[0031] Reference Figure 3 As shown, further, a first receiving recess 12 is provided inwardly on the front side of the molding base 1, and the first receiving recess 12 communicates with the top and bottom of the molding base 1; a second receiving recess 23 is provided inwardly on the back side of the guide seat 2, and the second receiving recess 23 communicates with the top and bottom of the guide seat 2. In this embodiment, the outer contours of the first receiving recess 12 and the second receiving recess 23 are semi-circular, and their diameters correspond. When the guide seat 2 is hung on the front side of the molding base 1, the above-mentioned molding channel 5 is formed between the first receiving recess 12 and the second receiving recess 23. The molding channel 5 allows the film to pass through and forms a semi-shaped strip bag under its shape.

[0032] The top of the guide seat 2 is provided with a through-film groove 24 extending downwards, and one end of the through-film groove 24 is connected to the second receiving recess 23. In use, both sides of the semi-formed strip bag are inserted into the through-film groove 24, which serves to guide and limit the alignment of the two sides.

[0033] Combined Figure 1 As shown, further, the front side of the guide seat 2 is provided with an operation window 25, which passes through the membrane groove 24 and communicates with the second receiving recess 23. In this embodiment, the operation window 25 enables the guide seat 2 to form an open operation space to facilitate membrane insertion.

[0034] Reference Figure 1 and Figure 4 As shown, a pair of first clamping blocks 3 are symmetrically arranged above the membrane groove 24 with the first receiving recess 12 as the center. Specifically, the gap between the pair of first clamping blocks 3 forms a first clamping channel 31, which is connected to the membrane groove 24.

[0035] The front side of the guide seat 2 is provided with a film clamping fixing hole 26, and the first film clamping block 3 is provided with an adjustment groove 32. The adjustment groove 32 slides along the film clamping fixing hole 26, thereby adjusting the size of the first film clamping channel 31 according to production needs. The adjustment groove 32 and the film clamping fixing hole 26 are connected by screws. The above adjustment method is a known technology and will not be described in detail here.

[0036] It should be noted that the back of the first interlayer block 3 does not extend above the first receiving recess 12 to prevent interference with the semi-formed strip bag in the first receiving recess 12.

[0037] The guide seat 2 has inwardly arranged receiving slots 27 on both the left and right sides. The receiving slots 27 are horizontally arranged and communicate with the operation window. A pair of second clamping blocks 4 are slidably arranged on the two receiving slots 27 of the guide seat 2. Specifically, one end of the second clamping block 4 is arranged in the receiving slot 27, and the other end is located in the operation window 25.

[0038] The gap between a pair of second membrane blocks 4 forms a second membrane channel 41, which is connected to the membrane groove 24.

[0039] In this embodiment, the height of the receiving slot 27 is equal to the height of the second clamping block 4, and the second clamping block 4 is located in the lower half of the guide seat 2.

[0040] The second clamping block 4 is slidably disposed within the receiving slot 27, and the width of the second clamping channel 41 can be adjusted according to production needs to ensure contact with the film.

[0041] When in use, when the two sides of the semi-formed strip bag are inserted into the film-passing groove 24, the two sides are in contact with the first film clamping block 3 and the second film clamping block 4 respectively. The first film clamping block 3 and the second film clamping block 4 support the two sides of the semi-formed strip bag to prevent deviation during the film pulling process, thereby ensuring that the two sides are aligned when back sealing, making the formed strip bag more beautiful and not deformed.

[0042] In order to ensure the forming effect when producing large (wide) strip bags, a longer film feeding distance is required. That is, the distance between the collar forming device and the back sealing device becomes longer. The film feeding groove 24 of this guiding device, together with the first film clamping block 3 and the second film clamping block 4, provides support for the film, making the film feeding smoother. At the same time, it reduces the offset caused by long-distance transportation and ensures that the two sides of the semi-formed strip bag are always aligned.

[0043] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They cannot be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A film forming guide device for a multi-row packaging machine, characterized in that, It includes a molding base (1) and a guide seat (2). The molding base (1) is fixedly provided with a docking shaft (11) on both sides, and the guide seat (2) is fixedly provided with a docking ear (21) on both sides. The front side of the forming base (1) is provided with a first receiving recess (12), and the back side of the guide seat (2) is provided with a second receiving recess (23). The back side of the guide seat (2) slides from top to bottom along the front side of the forming base (1) until the docking ear (21) is inserted into the docking shaft (11) so that the guide seat (2) is mounted on the forming base (1) and the first receiving recess (12) and the second receiving recess (23) move to form a forming channel (5). The top of the guide seat (2) is provided with a through groove (24) extending downward. One end of the through groove (24) is connected to the second receiving recess (23). The semi-formed strip bag formed by the collar forming device passes through the forming channel (5), and its two sides pass through the through groove (24). The through groove (24) plays a guiding and limiting role. The front side of the guide seat (2) is provided with an operation window (25), which passes through the membrane groove (24) and communicates with the second receiving recess (23).

2. The film forming guide device for a multi-row packaging machine according to claim 1, characterized in that, The docking ear (21) is provided with a slot (22), which is inserted into the docking shaft (11).

3. The film forming guide device for a multi-row packaging machine according to claim 1, characterized in that, The first receiving recess (12) and the second receiving recess (23) are semi-circular so that the shape of the forming channel (5) corresponds to the semi-formed strip bag and plays a guiding role.

4. The film forming guide device for a multi-row packaging machine according to claim 3, characterized in that, The diameters of the first accommodating recess (12) and the second accommodating recess (23) correspond to each other.

5. The film forming guide device for a multi-row packaging machine according to claim 1, characterized in that, It also includes a pair of first clamping blocks (3) and a pair of second clamping blocks (4). The pair of first clamping blocks (3) are symmetrically arranged above the film passing groove (24), and the pair of second clamping blocks (4) are symmetrically arranged in the operation window (25) with the film passing groove (24) as the center. The first clamping blocks (3) and the second clamping blocks (4) respectively support the two sides of the semi-formed strip bag located in the film passing groove (24).

6. The film forming guide device for a multi-row packaging machine according to claim 5, characterized in that, The front side of the guide seat (2) is provided with a membrane fixing hole (26), and the first membrane block (3) is provided with an adjustment groove (32). The adjustment groove (32) slides along the membrane fixing hole (26) and is fixedly connected by screws. The left and right sides of the guide seat (2) are respectively provided with receiving slots (27), and a pair of second clamping blocks (4) are respectively slidably disposed in the two receiving slots (27) of the guide seat (2).

7. The film forming guide device for a multi-row packaging machine according to any one of claims 5-6, characterized in that, The gap between a pair of first clamping blocks (3) forms a first clamping channel (31), and the gap between a pair of second clamping blocks (4) forms a second clamping channel (41). The first clamping channel (31) and the second clamping channel (41) are respectively connected to the membrane groove (24).

8. The film forming guide device for a multi-row packaging machine according to claim 6, characterized in that, The height of the receiving slot (27) is equal to the height of the second clamping block (4).

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