Edge sealing device for woven bag production

Abstract

The utility model belongs to the technical field of woven bag edge sealing equipment, and particularly relates to an edge sealing device for woven bag production, which comprises a working table, the working table comprises an extension plate fixed on one side, and a conveying part for driving woven bags to be continuously conveyed is arranged in the working table. The conveying part can press the woven bag while conveying, and the workbench is provided with an edge sealing part which is located on the conveying path of the conveying part and can conduct hot melting on the upper surface and the lower surface of the woven bag at the same time; firstly, the arranged conveying component is matched with the edge sealing component, the conveying component can continuously convey woven bags, then continuous edge sealing work of the woven bags is achieved through the edge sealing component, and the working efficiency is improved while the edge sealing effect is guaranteed; the extracting and cooling part can extract harmful gas generated in the hot melting process of the woven bag and can synchronously cool the two hot-melting and forming faces of the woven bag in the gas collecting process, and therefore the hot melting quality of the woven bag is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of knitting bag edge sealing equipment, and particularly relates to an edge sealing device for knitting bag production. Background Technique

[0002] A knitting bag, also known as a snake skin bag, is a kind of plastic bag used for packaging. Its raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. The knitting density refers to the number of warp and weft yarns within a 100mm×100mm knitted fabric.

[0003] After retrieval, the application (publication) number: CN217834765U proposed an edge sealing device for a knitting bag, "including a bottom plate, a top plate is arranged on the top of the bottom plate, a purification structure is arranged at the bottom of the top plate, the purification structure includes a purification box, a sealing mechanism is arranged at the bottom of the purification box, the sealing mechanism includes a shell and a connecting plate, and the bottom of the purification box is welded to the top of the shell" and other technical features, with "solving the problem that in the process of using the existing knitting bag edge sealing device, it is usually not convenient to perform hot melt secondary sealing while automatically sewing the edge, and usually cannot absorb and filter the flue gas generated during the hot melt process, which may cause certain inconvenience to the user" and other technical effects;

[0004] However, in this device, the "hot melt roller" is located above the knitting bag. During the hot melt process, the lower edge of the knitting bag contacts the "bottom plate", and the bottom plate does not have a heating function, which easily leads to poor fusion effect on both sides of the knitting bag and affects the edge sealing effect. At the same time, the "bottom plate" has a smooth surface, and its hot melt edge sealing effect will also be affected;

[0005] Secondly, during the hot melt process of this device, the "stitching structure, hot melt roller, and communicating vessel" all need to move reciprocally, resulting in low efficiency. At the same time, if the hot melt part is removed without cooling, it is easy to cause deformation of the hot melt part and affect the quality of the knitting bag;

[0006] To solve the above problems, an edge sealing device for knitting bag production is proposed in this application. Utility Model Content

[0007] The purpose of the utility model is to provide an edge sealing device for knitting bag production, which solves the problems proposed in the above background technique.

[0008] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0009] The utility model relates to a sealing device for the production of woven bags, which comprises a workbench. The workbench includes an extension plate fixed on one side. A conveying component for continuously conveying the woven bags is arranged in the workbench, and while conveying the woven bags, the conveying component can also press the woven bags tightly. A sealing component which is located on the conveying path of the conveying component and can simultaneously heat-seal the upper and lower surfaces of the woven bags is arranged on the workbench. An extraction and cooling component which is located on the path of the conveying component and is arranged at the rear end of the sealing component is arranged on the workbench. The extraction and cooling component can collect the hot-melt harmful gas and at the same time cool the hot-melt part during the conveying process. An avoidance groove for providing installation for the sealing component and the extraction and cooling component is formed on the workbench.

[0010] Further, the conveying component includes upper conveyor belts symmetrically arranged on both sides of the upper end of the workbench, lower conveyor belts symmetrically arranged on both sides of the workbench and located at the lower end of the upper conveyor belts, and a pressing belt flush with the upper conveyor belts. A linkage shaft for simultaneously connecting the upper conveyor belts and the pressing belt on both sides is arranged at the upper end inside the workbench. A linkage shaft for simultaneously connecting the lower conveyor belts on both sides is arranged at the lower end of the workbench. Driving components are connected to both of the two linkage shafts. Support blocks for forming a support in the middle of the conveyor belts are installed on the workbench through brackets.

[0011] Further, the upper surface of the lower conveyor belt is flush with the upper surface of the workbench, and a channel for the woven bag to pass through and clamp it is formed between the upper conveyor belt and the lower conveyor belt.

[0012] Further, the sealing component includes a first hot-melt roller located at the upper end of the workbench and a second hot-melt roller located at the lower end of the workbench. The first hot-melt roller and the second hot-melt roller are respectively located at the upper and lower ends of the conveying path of the woven bag. The first hot-melt roller and the second hot-melt roller are simultaneously installed on a connecting seat, and the connecting seat is fixed on the workbench.

[0013] Further, the extraction and cooling component includes a support net fixed at the upper end inside the avoidance groove and flush with the workbench, a sealing plate fixed inside the avoidance groove, a lower branch pipe connected to one end of the sealing plate, and an air extraction hood located directly above the support net. An upper branch pipe is fixed at one end of the air extraction hood.

[0014] Further, an air extraction channel is formed between the support net and the sealing plate, and the channel is open at the side far from the lower branch pipe. A passing space for the woven bag is formed between the air extraction hood and the support net. The other ends of the lower branch pipe and the upper branch pipe are connected to a main pipe.

[0015] Further, a chamfer structure is arranged at the front end of the air extraction hood. During the conveying process of the woven bag, the upper surface is attached to the bottom of the air extraction hood and slides. The two sides of the air extraction hood are also fixed to the corresponding support blocks.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can continuously convey woven bags through the arranged conveying component for hot melt edge sealing work, effectively improving the work efficiency, and the arranged pressing belt can effectively ensure the stability of the hot melt part of the woven bag, ensuring the reliable progress of the hot melt edge sealing work;

[0018] Through the mutual cooperation of the arranged edge sealing component and the extraction and cooling component, the extraction and cooling component can uniformly heat and fully fuse the woven bag, ensuring the stability of the edge sealing. The hot melt part of the woven bag directly enters the extraction and cooling component. The extraction and cooling component can not only absorb the harmful gases generated by hot melting, but also cool the hot melt part during the movement of the woven bag to achieve rapid shaping, thereby ensuring the quality of the hot melt part of the product.

[0019] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0022] Figure 2 It is Figure 1 A schematic diagram of the rear view structure;

[0023] Figure 3 It is Figure 1 A schematic diagram of the side view structure;

[0024] Figure 4 It is a schematic diagram of the main view of the utility model with a partial section;

[0025] Figure 5 It is a schematic diagram of the partial decomposition of the conveying component in the utility model;

[0026] Figure 6 It is a schematic diagram of the enlarged edge sealing component in the utility model;

[0027] Figure 7 It is a schematic diagram of the partial enlargement and decomposition of the extraction and cooling component in the utility model;

[0028] In the drawings, the list of components represented by each reference numeral is as follows:

[0029] In the figure: 1. Workbench; 11. Extension plate; 12. Avoidance groove; 2. Conveyor component; 21. Upper conveyor belt; 22. Lower conveyor belt; 23. Pressing belt; 24. Linkage shaft; 25. Support block; 3. Edge-sealing component; 31. First hot melt roller; 32. Second hot melt roller; 33. Connection seat; 4. Extraction and cooling component; 41. Support net; 42. Sealing plate; 43. Lower branch pipe; 44. Air extraction hood; 45. Upper branch pipe; 46. Main pipe. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] Please refer to Figures 1-7 As shown, the present invention is an edge-sealing device for the production of woven bags, including a workbench 1. The workbench 1 includes an extension plate 11 fixed on one side. A conveyor component 2 for continuously conveying the woven bag is provided in the workbench 1, and the conveyor component 2 can press the woven bag while conveying. An edge-sealing component 3 located on the conveying path of the conveyor component 2 and capable of simultaneously melting the upper and lower surfaces of the woven bag is provided on the workbench 1. An extraction and cooling component 4 located on the path of the conveyor component 2 and arranged at the rear end of the edge-sealing component 3 is provided on the workbench 1. The extraction and cooling component 4 can collect the harmful hot-melt gas and simultaneously cool the hot-melt part during the conveying process. An avoidance groove 12 for providing installation for the edge-sealing component 3 and the extraction and cooling component 4 is opened on the workbench 1.

[0033] Among them, the conveying component 2 includes an upper conveyor belt 21 symmetrically arranged on both sides of the upper end of the workbench 1, a lower conveyor belt 22 symmetrically arranged on both sides of the workbench 1 and located at the lower end of the upper conveyor belt 21, and a pressing belt 23 flush with the upper conveyor belt 21. An interlocking shaft 24 that simultaneously connects the upper conveyor belts 21 and the pressing belt 23 on both sides is provided at the upper end inside the workbench 1, and an interlocking shaft 24 that simultaneously connects the lower conveyor belts 22 on both sides is provided under the workbench 1. Driving members are connected to both of the two interlocking shafts 24. Support blocks 25 that form a support in the middle of the conveyor belts are installed on the workbench 1 through brackets. In this embodiment, the upper conveyor belts 21 and the lower conveyor belts 22 arranged on both sides can clamp both sides of the woven bag, and the pressing belt 23 arranged on one side in the middle can clamp one side of the heat-melted part of the woven bag. Passing the heat-sealed edge part of the woven bag between the upper conveyor belt 21, the lower conveyor belt 22 and the conveying component 2 on one side can further ensure the stability of the woven bag during heat-sealing.

[0034] Among them, the upper surface of the lower conveyor belt 22 is flush with the upper surface of the workbench 1. A channel for the woven bag to pass through and clamp it is formed between the upper conveyor belt 21 and the lower conveyor belt 22. In this embodiment, the horizontal arrangement of the lower conveyor belt 22 and the workbench 1 facilitates the stable conveyance of the woven bag. The formed channel can not only clamp the woven bag but also be used for it to pass through, ensuring the stable conveyance of the woven bag.

[0035] Among them, the edge-sealing component 3 includes a first hot-melt roller 31 located at the upper end of the workbench 1 and a second hot-melt roller 32 located at the lower end of the workbench 1. The first hot-melt roller 31 and the second hot-melt roller 32 are respectively located at the upper and lower ends of the conveying path of the woven bag. The first hot-melt roller 31 and the second hot-melt roller 32 are simultaneously installed on a connecting seat 33, and the connecting seat 33 is fixed on the workbench 1. In this embodiment, the edge-sealing component 3 can be reliably installed on the workbench 1 and is located in the conveying path of the woven bag, and at the same time, it will not affect the conveyance of the woven bag.

[0036] Among them, the extraction and cooling component 4 includes a support net 41 fixed at the upper end inside the avoidance groove 12 and flush with the workbench 1, a sealing plate 42 fixed inside the avoidance groove 12, a lower branch pipe 43 connected to one end of the sealing plate 42, and an air extraction hood 44 located directly above the support net 41. An upper branch pipe 45 is fixed at one end of the air extraction hood 44. In this embodiment, the lower branch pipe 43 and the upper branch pipe 45 are connected through a main pipe 46, which facilitates simultaneous air extraction at the upper and lower ends and is also convenient for connection to external negative pressure equipment and a purification system.

[0037] Among them, an exhaust channel is formed between the support net 41 and the sealing plate 42, and the channel is opened on the side away from the lower branch pipe 43, and a passage space for the woven bags is formed between the exhaust hood 44 and the support net 41. The other ends of the lower branch pipe 43 and the upper branch pipe 45 are connected to the main pipe 46. In this embodiment, the extraction and cooling component 4 is provided with channels at the upper and lower ends of the woven bag conveying. The channel can dissipate heat for the hot-melt part of the woven bag while absorbing harmful gases, and will not affect the conveying work of the conveying component 2 on the woven bag.

[0038] Among them, a chamfered structure is provided at the front end of the exhaust hood 44. During the transportation of the woven bag, the upper surface is attached to the bottom of the exhaust hood 44 and slides. The two sides of the exhaust hood 44 are also fixed to the support blocks 25 at corresponding positions. In this embodiment, when the woven bag passes between the exhaust hood 44 and the support net 41, the support net 41 and the woven bag form an air flow channel, and the side of the channel away from the upper branch pipe 45 is opened. The airflow and harmful gases flow through the exhaust hood 44 to the side of the upper branch pipe 45. During the flow, the hot melt part of the woven bag is cooled and shaped.

[0039] It can be understood that, firstly, by cooperating with the conveying component 2 and the edge sealing component 3, the conveying component 2 can continuously convey the woven bag, and then realize the continuous edge sealing of the woven bag through the edge sealing component 3, thereby improving the work efficiency while ensuring the edge sealing effect, and secondly, an extraction and cooling component 4 is set at the rear end of the edge sealing component 3. The extraction and cooling component 4 can not only extract the harmful gas generated in the hot melting process of the woven bag, but also can synchronously cool the two surfaces of the woven bag hot-melt formed during the gas collection process, thereby ensuring the hot melting quality of the woven bag.

[0040] A specific application of this embodiment is: a motor is installed on the side of the workbench 1 to drive the conveying component 2 to form a conveyance, the first hot melt roller 31 and the second hot melt roller 32 can be driven by a motor or other means, the edge sealing component 3 is consistent with the conveying direction of the conveying component 2, the surfaces of the first hot melt roller 31 and the second hot melt roller 32 can also be provided with textures, and the main pipe 46 is externally connected to a purification system and a negative pressure device.

[0041] Through a calibration device, a guiding device, etc., the woven bag to be edge-sealed enters the workbench 1 through the extension plate 11. At this time, the motor on the conveying component 2 is in the on state. The motor drives the upper conveyor belt 21, the lower conveyor belt 22, and the pressing belt 23 to rotate through the linkage shaft 24 to form a conveying power. The woven bag enters between the upper conveyor belt 21 and the lower conveyor belt 22. The two ends of the woven bag are pressed and conveyed by the upper conveyor belt 21 and the lower conveyor belt 22 arranged on both sides. The side of the woven bag close to the hot melt is also pressed and conveyed by the pressing belt 23. The woven bag enters between the first hot melt roller 31 and the second hot melt roller 32. The first hot melt roller 31 and the second hot melt roller 32 in the heating state hot melt-seal the woven bag. The woven bag continues to be conveyed. The hot melt part of the woven bag enters the extraction and cooling component 4. The support net 41 drives the lower-end air flow to pass through the sealing plate 42, the support net 41, and the lower surface of the woven bag and enter the lower branch pipe 43 through an external negative pressure device, drives the upper-end air flow to pass through the air extraction hood 44 and the upper surface of the woven bag and enter the upper branch pipe 45, and finally inhales the harmful gas into the purification system through the main pipe 46 for treatment.

[0042] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A edge-sealing device for the production of woven bags, comprising a workbench (1), characterized in that: The workbench (1) includes an extension plate (11) fixed on one side. A conveying component (2) for continuously conveying woven bags is arranged in the workbench (1), and while conveying the woven bags, the conveying component (2) can also press the woven bags. A sealing edge component (3) capable of simultaneously heat-melting the upper and lower surfaces of the woven bags is arranged on the workbench (1) on the conveying path of the conveying component (2). An extraction and cooling component (4) is arranged on the workbench (1) on the path of the conveying component (2) and behind the sealing edge component (3). The extraction and cooling component (4) can collect the heat-melted harmful gases and at the same time cool the heat-melted part during the conveying process. An avoidance groove (12) for providing installation for the sealing edge component (3) and the extraction and cooling component (4) is formed on the workbench (1).

2. The edge-sealing device for woven bag production according to claim 1, characterized in that: The conveying component (2) includes an upper conveyor belt (21) symmetrically arranged on both sides of the upper end of the workbench (1) and a lower conveyor belt (22) symmetrically arranged on both sides of the workbench (1) and located at the lower end of the upper conveyor belt (21), and a pressing belt (23) flush with the upper conveyor belt (21). A linkage shaft (24) for simultaneously connecting the upper conveyor belts (21) on both sides and the pressing belt (23) is arranged at the upper end inside the workbench (1). A linkage shaft (24) for simultaneously connecting the lower conveyor belts (22) on both sides is arranged at the lower end of the workbench (1). Driving components are connected to both of the linkage shafts (24). A support block (25) for forming a support in the middle of the conveyor belt is installed on the workbench (1) through a bracket.

3. The edge sealing device for woven bag production according to claim 2, characterized in that: The upper surface of the lower conveyor belt (22) is flush with the upper surface of the workbench (1). A channel for the woven bag to pass through and clamp it is formed between the upper conveyor belt (21) and the lower conveyor belt (22).

4. A edge-sealing device for woven bag production according to claim 1, characterized in that: The sealing edge component (3) includes a first heat-melting roller (31) located at the upper end of the workbench (1) and a second heat-melting roller (32) located at the lower end of the workbench (1). The first heat-melting roller (31) and the second heat-melting roller (32) are respectively located at the upper and lower ends of the conveying path of the woven bag. The first heat-melting roller (31) and the second heat-melting roller (32) are simultaneously installed on a connecting seat (33), and the connecting seat (33) is fixed on the workbench (1).

5. A edge-sealing device for woven bag production according to claim 1, characterized in that: The extraction and cooling component (4) includes a support net (41) fixed at the upper end inside the avoidance groove (12) and flush with the workbench (1), a sealing plate (42) fixed inside the avoidance groove (12), a lower branch pipe (43) connected to one end of the sealing plate (42), and an air extraction hood (44) located directly above the support net (41). An upper branch pipe (45) is fixed at one end of the air extraction hood (44).

6. The edge sealing device for woven bag production according to claim 5, characterized in that: An air extraction channel is formed between the support net (41) and the sealing plate (42), and the side of the channel away from the lower branch pipe (43) is open. A passing space for the woven bag is formed between the air extraction hood (44) and the support net (41). The other ends of the lower branch pipe (43) and the upper branch pipe (45) are connected to a main pipe (46).

7. A edge-sealing device for woven bag production according to claim 6, characterized in that: The front end of the air extraction hood (44) is provided with a chamfer structure. During the conveying process of the woven bag, the upper surface fits and slides on the bottom of the air extraction hood (44). The two sides of the air extraction hood (44) are also fixed to the corresponding support blocks (25).

Images