Guar gum paper bag packing automatic edge folding device

Abstract

This utility model relates to an automatic folding device for guar gum paper bag packaging, belonging to the technical field of guar gum paper bag packaging machines. It includes a frame, on which a mounting plate is slidably mounted, and on the mounting plate is an automatic sealing device for folding the guar gum paper bags. The automatic sealing device includes a telescopic electric cylinder fixed to the mounting plate, and a vertical plate slidably mounted inside the mounting plate. A heat-sealing folding head is mounted on the bottom outer surface of the vertical plate. A cleaning component for cleaning is provided on the vertical plate. This automatic folding device for guar gum paper bag packaging instantly solves the problem of powder contamination before heat sealing, eliminating quality defects such as incomplete or missed seals caused by powder, greatly improving the product's sealing qualification rate and long-term storage stability. Furthermore, by integrating the cleaning function into the folding action, it eliminates the need for additional workstations or production cycles, and cleaning and folding are completed simultaneously, ensuring high-speed continuous production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of guar gum paper bag packaging machines, specifically an automatic folding device for guar gum paper bag packaging. Background Technology

[0002] Guar gum, a natural polysaccharide extracted from guar beans, is widely used in various industrial sectors such as food, petroleum, pharmaceuticals, papermaking, and textiles due to its excellent thickening, stabilizing, and water-retaining properties. Guar gum products are usually in the form of fine powder and have strong hydrophilicity, making them extremely prone to absorbing moisture from the air, causing them to clump and deteriorate. Therefore, extremely stringent requirements are placed on the moisture-proof and airtight properties of their packaging.

[0003] Currently, the mainstream packaging form for guar gum is the multi-layer composite paper bag, which strikes a good balance between barrier properties, strength, and cost. In the sealing process of this type of packaging, heat sealing is widely used because it can form a high-strength, continuous, and uniform plastic fusion seal layer, effectively preventing the intrusion of moisture and air. It is considered a key technology for ensuring the shelf life and quality of guar gum products. Automatic folding devices are an indispensable core unit of modern automatic guar gum packaging machines. Their performance directly determines the shape of the bag opening, thus affecting the quality of the final heat seal.

[0004] However, existing automatic folding devices generally lack effective cleaning functions at the sealing area. Guar gum powder is extremely fine and easily generates dust. During the filling process, a small amount of powder inevitably splashes and adheres to the inner wall of the packaging bag and the bag opening area. When performing the folding operation, traditional folding mechanisms only perform the mechanical action of folding. This process has a fatal problem: it folds and presses the powder already adsorbed in the folding area of ​​the bag opening into the interface that will be heat-sealed; this not only contaminates the heat-sealing cover but also weakens the sealing strength, thus failing to meet production requirements. Therefore, an automatic folding device for guar gum paper bag packaging is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic folding device for guar gum paper bag packaging, which has advantages such as high automation and real-time cleaning capabilities, thus solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic folding device for packaging guar gum paper bags includes a frame, an mounting plate slidably disposed on the frame, and an automatic sealing device for folding the edges of guar gum paper bags disposed on the mounting plate;

[0008] The automatic edge sealing equipment includes a telescopic electric cylinder fixed to the mounting plate. A vertical plate is slidably arranged inside the mounting plate. A heat-sealing folding head is installed on the bottom outer surface of the vertical plate. A mounting base is fixed on the output end of the telescopic electric cylinder, and a connecting rod is hinged between the mounting base and the vertical plate.

[0009] The vertical plate is provided with a cleaning assembly for cleaning. The cleaning assembly includes a cleaning brush that is detachably installed on one side of the vertical plate. A guide rod that penetrates the interior of the vertical plate is fixed on the outer wall of the cleaning brush. A return spring is installed between the outer surface of the guide rod and the outer wall of the vertical plate. A dust collection device connected to the guide rod is provided on the top side of the frame.

[0010] Furthermore, the frame has a sliding opening inside, and a mounting platform is welded to the side of the frame away from the mounting plate. An electric telescopic rod is bolted to the upper surface of the mounting platform.

[0011] Furthermore, a connecting plate that slides and engages with the sliding opening is fixed on the left side of the mounting plate, and the bottom side of the connecting plate is connected and fixed to the output end of the electric telescopic rod.

[0012] Furthermore, in the automatic edge sealing equipment, apart from the telescopic electric cylinder and the mounting base, the number of the remaining structures is two. The two vertical plates are symmetrically distributed, and the two heat-sealing folding heads are respectively fixed between the two vertical plates.

[0013] Furthermore, the cleaning brush has a suction hole inside that communicates with the guide rod, and there are two cleaning brushes, which are symmetrically installed between the two vertical plates.

[0014] Furthermore, the dust collection device includes a dust collection box fixed to the top side of the frame. A fan and a three-way pipe are installed on one side of the dust collection box. Connecting pipes are fixed to both ends of the three-way pipe, and the two connecting pipes are respectively fixedly connected to the two guide rods.

[0015] Furthermore, the mounting plate is provided with a guide assembly for limiting the two vertical plates. The guide assembly includes a limiting rod and a buffer spring. The mounting plate has a guide opening inside, and the top side of the vertical plate extends into the guide opening. The limiting rod is fixed between the inner walls of opposite sides of the guide opening and passes through the top side of the vertical plate. One side of the buffer spring is fixed to the inner wall of the guide opening, and the other side of the buffer spring is fixed to the outer wall of the top side of the vertical plate.

[0016] Compared with the prior art, this utility model provides an automatic folding device for guar gum paper bag packaging, which has the following beneficial effects:

[0017] 1. This automatic folding device for guar gum paper bags solves the problem of powder contamination instantly before heat sealing, eliminating quality defects such as incomplete or missing seals caused by powder, greatly improving the sealing qualification rate and long-term storage stability of the product. Furthermore, the cleaning function is integrated into the folding action, eliminating the need for additional workstations or production cycles. Cleaning and folding are completed simultaneously, ensuring the efficiency of high-speed continuous production.

[0018] 2. This automatic folding device for guar gum paper bags, through the setting of a reset spring, enables the cleaning brush to have a certain elastic pressing ability, which can adapt to the slight unevenness or thickness changes of the bag opening, ensuring consistent cleaning effect. Furthermore, the installation of the guide component and buffer spring ensures the precision and smoothness of the folding and heat sealing head movement, reduces vibration and impact, and improves the service life and operational reliability of the equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the automatic edge-sealing equipment of this utility model;

[0021] Figure 3 This is a side view of the structure of the cleaning component of this utility model;

[0022] Figure 4 This utility model Figure 3 A magnified structural diagram of structure A is shown.

[0023] In the diagram: 1. Frame; 11. Mounting platform; 12. Slide opening; 2. Electric telescopic rod; 3. Mounting plate; 31. Connecting plate; 4. Automatic edge sealing equipment; 41. Telescopic electric cylinder; 42. Heat sealing folding head; 43. Mounting base; 44. Vertical plate; 45. Connecting rod; 5. Cleaning assembly; 51. Cleaning brush; 52. Guide rod; 53. Suction hole; 54. Return spring; 6. Dust collection device; 61. Dust collection box; 62. Fan; 63. T-pipe; 64. Connecting pipe; 7. Guide assembly; 71. Guide port; 72. Limiting rod; 73. Buffer spring. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 4This embodiment of an automatic folding device for guar gum paper bag packaging includes a frame 1, a mounting plate 3 slidably mounted on the frame 1, a sliding opening 12 inside the frame 1, and a mounting platform 11 welded to the side of the frame 1 away from the mounting plate 3. An electric telescopic rod 2 is bolted to the upper surface of the mounting platform 11. A connecting plate 31 that slides with the sliding opening 12 is fixed to the left side of the mounting plate 3, and the bottom side of the connecting plate 31 is connected and fixed to the output end of the electric telescopic rod 2.

[0026] Specifically, the mounting plate 3 is equipped with an automatic edge sealing device 4 for folding the edges of guar gum paper bags; the automatic edge sealing device 4 includes a telescopic electric cylinder 41 fixed on the mounting plate 3, a vertical plate 44 is slidably arranged inside the mounting plate 3, a heat sealing folding head 42 is installed on the bottom outer surface of the vertical plate 44, a mounting base 43 is fixed on the output end of the telescopic electric cylinder 41, and a connecting rod 45 is hinged between the mounting base 43 and the vertical plate 44;

[0027] It should be noted that, except for the telescopic electric cylinder 41 and the mounting base 43, the automatic sealing device 4 consists of two of each structure. Two vertical plates 44 are symmetrically distributed, and two heat-sealing folding heads 42 are fixed between the two vertical plates 44. In this application, the two vertical plates 44 are driven by the same telescopic electric cylinder 41, and through the same rigid mounting base 43 and two sets of symmetrical connecting rods 45. This ensures that their displacement, speed, and direction are the same at all times, allowing the two heat-sealing folding heads 42 to contact both sides of the bag opening absolutely synchronously, applying uniform and symmetrical pressure for folding and heat sealing. This avoids problems such as bag opening skewing, uneven folding, or excessive pressure on one side caused by left-right asynchrony, greatly improving the appearance and quality consistency of the seal. The heat-sealing fold head 42 is heated by electricity and pressure is applied to the bag opening. It is maintained at a preset temperature and pressure for a period of time, so that the inner heat-sealing film of the composite material is fused together to form a strong seal. The heat-sealing fold head 42 is a conventional technology known to the public in the prior art, so its specific structural composition and working principle will not be described in detail in this article.

[0028] To ensure the stability of the vertical plates 44 during movement, a guide assembly 7 is installed inside the mounting plate 3 to limit the movement of the two vertical plates 44. The guide assembly 7 includes a limiting rod 72 and a buffer spring 73. A guide opening 71 is provided inside the mounting plate 3, and the top side of the vertical plates 44 extends into the guide opening 71. The limiting rod 72 is fixed between the inner walls of opposite sides of the guide opening 71 and passes through the interior of the top side of the vertical plates 44. One side of the buffer spring 73 is fixed to the inner wall of the guide opening 71, and the other side of the buffer spring 73 is fixed to the outer wall of the top side of the vertical plates 44. The installation of the guide assembly 7 and the buffer spring 73 ensures the precision and smoothness of the folding and heat sealing head movement, reduces vibration and impact, and improves the service life and operational reliability of the equipment.

[0029] To improve the heat-sealing effect of the folded edges, a cleaning assembly 5 is provided on the vertical plate 44. The cleaning assembly 5 includes a cleaning brush 51 detachably installed on one side of the vertical plate 44. A guide rod 52 is fixed to the outer wall of the cleaning brush 51, penetrating the interior of the vertical plate 44. A return spring 54 is installed between the outer surface of the guide rod 52 and the outer wall of the vertical plate 44. The design of the return spring 54 allows the cleaning brush 51 to be elastically supported on the vertical plate 44 through the guide rod 52. This gives the cleaning brush 51 a buffering and self-adaptive capability when it comes into contact with the bag opening. The cleaning brush 51 has a suction hole 53 communicating with the guide rod 52 inside. There are two cleaning brushes 51, and the two cleaning brushes 51 are symmetrically installed between the two vertical plates 44.

[0030] To further improve the cleaning effect, a dust collection device 6 connected to the guide rod 52 is installed on the top side of the frame 1. The dust collection device 6 includes a dust collection box 61 fixed to the top side of the frame 1. A fan 62 and a three-way pipe 63 are installed on one side of the dust collection box 61. Connecting pipes 64 are fixed to both ends of the three-way pipe 63, and the two connecting pipes 64 are respectively fixedly connected to the two guide rods 52. With the installation of the dust collection device 6, before the heat-sealing folding head 42 contacts the bag opening, the cleaning brush 51 works first to sweep off the powder adhering to the outer wall of the bag opening, and then instantly sucks it away by negative pressure suction through the suction hole 53 and the guide rod 52, ensuring that the area contacted by the heat-sealing folding head 42 is kept clean. A detachable mesh is installed inside the dust collection box 61 for easy subsequent cleaning.

[0031] The working principle of the above embodiments is as follows:

[0032] When the paper bag filled with guar gum is conveyed into the working area of ​​the frame 1 with the bag opening open, the electric telescopic rod 2 is activated. By pushing the connecting plate 31 to slide within the sliding opening 12, it drives the entire mounting plate 3 and all the automatic sealing devices 4 on it to move downwards and closer to the bag opening. When the mounting plate 3 descends to the predetermined height, the telescopic electric cylinder 41 starts to work, and its output end retracts, pulling the mounting base 43. The mounting base 43 pulls the two vertical plates 44 through two connecting rods 45 to slide towards each other inside the mounting plate 3, i.e., move closer to the center. At the same time, the cleaning component 5 fixed on the vertical plate 44 starts to work. As the vertical plate 44 moves inward, the cleaning brush 51 first contacts the inner and outer walls on both sides of the bag opening. Under the elastic support of the return spring 54, the cleaning brush 51 can be tightly pressed against the bag wall of different thicknesses to ensure the cleaning effect.

[0033] Next, the fan 62 is started to create negative pressure in the dust collection box 61. This negative pressure is transmitted through the three-way pipe 63 and the connecting pipe 64 to the hollow pipe of the guide rod 52, and finally reaches the suction hole 53 inside the cleaning brush 51. While the cleaning brush 51 is brushing the surface of the bag opening, the negative pressure immediately sucks away the powder that falls off the brush and sends it directly into the dust collection box 61 for collection, perfectly avoiding the powder from being rolled into the folded edge.

[0034] Once cleaning is complete, the heat-sealing folding head 42 is positioned at the sealing point. By controlling the heat-sealing folding head 42, the guar paper bag can be automatically folded and sealed.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] 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. An automatic folding device for guar gum paper bag packaging, characterized in that: Includes a frame (1), on which a mounting plate (3) is slidably arranged, and on the mounting plate (3) is an automatic edge-sealing device (4) for folding the edges of guar paper bags; The automatic edge sealing device (4) includes a telescopic electric cylinder (41) fixed on the mounting plate (3), a vertical plate (44) is slidably arranged inside the mounting plate (3), a heat-sealing folding head (42) is installed on the bottom outer surface of the vertical plate (44), a mounting base (43) is fixed on the output end of the telescopic electric cylinder (41), and a connecting rod (45) is hinged between the mounting base (43) and the vertical plate (44); The vertical plate (44) is provided with a cleaning assembly (5) for cleaning. The cleaning assembly (5) includes a cleaning brush (51) detachably installed on one side of the vertical plate (44). A guide rod (52) that penetrates the interior of the vertical plate (44) is fixed on the outer wall of the cleaning brush (51). A return spring (54) is installed between the outer surface of the guide rod (52) and the outer wall of the vertical plate (44). A dust collection device (6) connected to the guide rod (52) is provided on the top side of the frame (1).

2. The automatic folding device for guar gum paper bag packaging according to claim 1, characterized in that: The frame (1) has a sliding opening (12) inside. A mounting platform (11) is welded to the side of the frame (1) away from the mounting plate (3). An electric telescopic rod (2) is bolted to the upper surface of the mounting platform (11).

3. The automatic folding device for guar gum paper bag packaging according to claim 2, characterized in that: The left side of the mounting plate (3) is fixed with a connecting plate (31) that slides with the sliding opening (12), and the bottom side of the connecting plate (31) is connected and fixed to the output end of the electric telescopic rod (2).

4. The automatic folding device for guar gum paper bag packaging according to claim 1, characterized in that: In the automatic edge sealing device (4), except for the telescopic electric cylinder (41) and the mounting base (43), the number of other structures is two. The two vertical plates (44) are symmetrically distributed, and the two heat-sealing folding heads (42) are respectively fixed between the two vertical plates (44).

5. The automatic folding device for guar gum paper bag packaging according to claim 4, characterized in that: The cleaning brush (51) has a suction hole (53) that communicates with the guide rod (52) inside. There are two cleaning brushes (51), and the two cleaning brushes (51) are symmetrically installed between the two vertical plates (44).

6. The automatic folding device for guar gum paper bag packaging according to claim 5, characterized in that: The dust collection device (6) includes a dust collection box (61) fixed to the top side of the frame (1). A fan (62) and a three-way pipe (63) are installed on one side of the dust collection box (61). Connecting pipes (64) are fixed at both ends of the three-way pipe (63), and the two connecting pipes (64) are respectively fixedly connected to the two guide rods (52).

7. The automatic folding device for guar gum paper bag packaging according to claim 4, characterized in that: The mounting plate (3) is provided with a guide assembly (7) for limiting the two vertical plates (44). The guide assembly (7) includes a limiting rod (72) and a buffer spring (73). The mounting plate (3) has a guide opening (71) inside. The top side of the vertical plate (44) extends into the guide opening (71). The limiting rod (72) is fixed between the inner walls of the opposite side of the guide opening (71) and passes through the top side of the vertical plate (44). One side of the buffer spring (73) is fixed to the inner wall of the guide opening (71), and the other side of the buffer spring (73) is fixed to the outer wall of the top side of the vertical plate (44).

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