Bag sealing structure of middle-sealed organ bag
By designing a central sealing accordion bag sealing structure including heat sealing, guidance, shaping and cooling structures, the problem of uneven heat sealing treatment of central sealing accordion bag in the prior art is solved, and better sealing and item protection effect are achieved.
Patent Information
- Application Number
- CN202421803974.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-26
AI Technical Summary
During the heat sealing process, existing central sealing organ bags may cause uneven clamping of the vertical edges of the bag, which will affect the sealing properties and cause the items to be invaded by oxygen or moisture.
A bag sealing structure of a central sealing organ bag is designed, including a base frame, a heat sealing structure, a guide structure, a shaping structure and a cooling structure. The heat sealing structure uses reciprocating cylinders and heating clamps to achieve heat sealing of the vertical edge of the bag; the guide structure guides the vertical edge of the bag through vertical edge guide plates and threaded rods; the shaping structure uses the roof plates and rollers to shape the vertical edge of the bag; the cooling structure uses the exhaust fan and exhaust hood to cool the vertical edge of the bag.
Through this bag sealing structure, uniform heat sealing and shaping of the vertical edges of the central sealing organ bag is achieved, which enhances the sealing of the bag and prevents the invasion of oxygen or moisture.
Smart Images
Figure CN222987722U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of middle-sealed bellows bags, and particularly relates to a bag-sealing structure of a middle-sealed bellows bag. Background Art
[0002] The middle-sealed bellows bag is a special bag, which is formed by folding the two side edges into the inner surface of the bag body, so that the originally oval-opening bag is folded into a rectangular-opening bag. The functional advantage of the middle-sealed bellows bag lies in its unique design, which can effectively protect the items in the bag and prevent them from being damaged by external factors such as sunlight, air, water vapor and oxygen.
[0003] Processing flow of the middle-sealed bellows bag: Through the packaging film roll, after unfolding, then the edge of the packaging film is heat-sealed by a heat-sealing machine, and the folding mechanism folds the packaging film into a bag shape, and a standing edge is formed on the bag for the subsequent heat-sealing machine to heat-seal the edge. However, during the heat-sealing process of the bag, it may be inconvenient to perform heat-sealing treatment on the vertical edge of the bag subsequently, which may lead to uneven heat-sealing treatment or incomplete sealing, and further may cause the items inside the bag to be invaded by oxygen or moisture.
[0004] It can be seen that the existing technology still needs to be improved. Content of the Utility Model
[0005] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide a bag-sealing structure of a middle-sealed bellows bag, aiming to solve the problem that it may be inconvenient to perform heat-sealing treatment on the vertical edge of the bag.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A bag-sealing structure of a middle-sealed bellows bag includes a chassis. A heat-sealing structure is arranged on the top of the chassis. One side of the top of the heat-sealing structure is provided with a guiding structure, and the guiding structure is located upstream of the heat-sealing structure. The other side of the top of the heat-sealing structure is provided with a shaping structure, and the shaping structure is located downstream of the heat-sealing structure. A cooling structure is arranged on one side of the chassis;
[0008] The heat-sealing structure includes a reciprocating cylinder fixed on the top of the chassis. The telescopic end of the reciprocating cylinder is fixedly connected with a movable plate. A guiding rod is movably penetrated through the inside of the movable plate. One end of the guiding rod is fixedly connected with a pushing plate. A spring is fixedly arranged between the pushing plate and the movable plate. The bottom of the pushing plate is fixedly connected with a mounting rack. A heating clamping plate is fixedly connected to the mounting rack, and an electric thermocouple is fixedly arranged on the heating clamping plate.
[0009] Preferably, the bottom of the movable plate is fixedly connected with a sliding block, and the sliding block is slidably connected to the top of the chassis. By setting the sliding block, the stability of the movement of the movable plate is increased.
[0010] Preferably, the guiding structure includes a vertical edge guide plate detachably connected to one side of the top of the chassis. A groove is formed in the vertical edge guide plate. A threaded rod passes through the vertical edge guide plate movably through the groove. The top of the threaded rod is fixedly connected with a hexagonal block, and the hexagonal block is in close contact with the vertical edge guide plate. The top of the hexagonal block is fixedly connected with a grip block. By providing the vertical edge guide plate, the groove, the hexagonal block and the grip block, the vertical edge of the bag is guided and formed.
[0011] Preferably, threaded holes are formed in the chassis, and the threaded holes are adapted to the threaded rod. By providing the threaded holes, it is convenient for the connection between the threaded rod and the chassis, thereby facilitating the installation of the vertical edge guide plate on the chassis.
[0012] Preferably, the shaping structure includes a top plate fixedly arranged on the other side of the chassis. A limiting block is fixedly connected to the inner top wall of the top plate. A roller is fixedly arranged at the bottom of the limiting block. By providing the top plate, the limiting block and the roller, the vertical edge of the heat-sealed bag is shaped.
[0013] Preferably, the cooling structure includes an exhaust hood arranged on the central axis of the chassis. The top of the exhaust hood is fixedly communicated with a sleeve. The top of the sleeve is fixedly communicated with a corrugated pipe. An installation plate is detachably connected to the top plate. A positioning bolt is threadedly penetrated through the interior of the installation plate, and the positioning bolt is threadedly connected to the top plate. By providing the exhaust hood, the sleeve, the corrugated pipe, the installation plate and the positioning bolt, the vertical edge of the heat-sealed bag is cooled.
[0014] Preferably, one end of the corrugated pipe away from the sleeve is fixedly communicated with an air collecting hood. An air extractor is fixedly connected to one side of the air collecting hood. By providing the air extractor and the air collecting hood, the air is transferred into the interior of the corrugated pipe.
[0015] Preferably, a rubber pad is fixedly connected to the installation plate. A tie strap is arranged on the rubber pad. The sleeve is detachably connected to the rubber pad on the installation plate through the tie strap. By providing the rubber pad and the tie strap, the position where the sleeve is located is stabilized.
[0016] Beneficial effects:
[0017] Through the operation of the reciprocating cylinder, the movable plate drives the spring to move, the push plate drives the mounting frame to move, and the heating clamping plate moves towards the vertical edge of the bag to fit. Through the combined use of the heating clamping plate and the thermocouple, hot air treatment is performed on the vertical edge of the bag. Then, through the combined use of the spring and the guide rod, the clamping force on the vertical edge of the bag is buffered, thereby facilitating the hot melt sealing of the paper bag edge.
[0018] Through the combined use of the groove, the hexagonal block, the grip block, the threaded rod and the threaded hole, the vertical edge guide plate can be detachably installed, and at the same time, the distance between the two vertical edge guide plates can be adjusted. Then, through the action of the vertical edge guide plate, the vertical edge of the bag is guided and formed, facilitating the downstream heat sealing of the vertical edge of the bag.
[0019] Through the combined use of the top plate, the limit block and the roller, the vertical edge of the bag after heat sealing is shaped. By operating the exhaust fan and through the combined use of the air collecting hood, the corrugated pipe and the sleeve, the air is transferred to the inside of the exhaust hood and ejected, so as to facilitate the cooling of the vertical edge of the bag after heat sealing. Brief Description of the Drawings
[0020] Figure 1 It is a schematic three-dimensional structure diagram of the present utility model.
[0021] Figure 2 It is a schematic heat sealing structure diagram of the present utility model;
[0022] Figure 3 It is a schematic shaping structure diagram of the present utility model;
[0023] Figure 4 It is the present utility model Figure 3 The enlarged structure diagram at position A in;
[0024] Figure 5 It is a schematic guiding structure diagram of the present utility model.
[0025] Description of the main component symbols: 1 - chassis;
[0026] 2 - heat sealing structure; 21 - reciprocating cylinder; 22 - movable plate; 23 - spring; 24 - push plate; 25 - mounting bracket; 26 - heating clamping plate; 27 - thermocouple; 28 - guide rod; 29 - slider;
[0027] 3 - guiding structure; 31 - vertical edge guide plate; 32 - groove; 33 - hexagonal block; 34 - grip block; 35 - threaded rod; 36 - threaded hole;
[0028] 4 - shaping structure; 41 - top plate; 42 - limit block; 43 - roller;
[0029] 5 - cooling structure; 51 - exhaust fan; 52 - air collecting hood; 53 - corrugated pipe; 54 - sleeve; 55 - exhaust hood; 56 - mounting plate; 57 - rubber pad; 58 - tie strap; 59 - positioning bolt. Detailed Description of the Preferred Embodiments
[0030] The present utility model provides a bag sealing structure for a middle-sealed bellows bag. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the attached drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.
[0031] Please refer to Figure 1-2, the utility model provides a bag sealing structure for a middle-sealed bellows bag, including a chassis 1. A heat sealing structure 2 for heat-sealing the vertical edges of the bag is provided at the top of the chassis 1. There are two sets of heat sealing structures 2, which are symmetrically distributed with the central axis of the chassis 1 as the center. On one side of the top of the heat sealing structure 2, a guiding structure 3 for guiding and forming the vertical edges of the bag is provided. There are two sets of guiding structures 3, which are symmetrically distributed with the central axis of the chassis 1 as the center, and the guiding structure 3 is located upstream of the heat sealing structure 2. On the other side of the top of the heat sealing structure 2, a shaping structure 4 for shaping the vertical edges of the bag is provided, and the shaping structure 4 is located downstream of the heat sealing structure 2. A cooling structure 5 for cooling the vertical edges of the bag after heat sealing is provided on one side of the chassis 1;
[0032] The heat sealing structure 2 includes a reciprocating cylinder 21 fixed on the top of the chassis 1. The telescopic end of the reciprocating cylinder 21 is fixedly connected with a movable plate 22. A guide rod 28 is movably penetrated through the inside of the movable plate 22. The guide rod 28 increases the stability of the movement of the push plate 24. One end of the guide rod 28 is fixedly connected with a push plate 24. A spring 23 is fixedly arranged between the push plate 24 and the movable plate 22. The bottom of the push plate 24 is fixedly connected with a mounting bracket 25. A heating clamping plate 26 is fixedly connected to the mounting bracket 25. An electric thermocouple 27 is fixedly arranged on the heating clamping plate 26. When the reciprocating cylinder 21 operates, the movable plate 22, the spring 23, the push plate 24, the mounting bracket 25 and the heating clamping plate 26 move towards the direction close to the vertical edge of the bag. At the same time, the heating clamping plate 26 is heated by the electric thermocouple 27. After heating, the heating clamping plate 26 is attached to the vertical edge of the bag to perform heat sealing treatment on the vertical edge of the bag. The spring 23 and the guide rod 28 buffer the clamping force on the vertical edge of the bag.
[0033] Please refer to Figure 2 , the bottom of the movable plate 22 is fixedly connected with a slider 29. The slider 29 is slidably connected to the top of the chassis 1. The slider 29 increases the stability of the movement of the movable plate 22.
[0034] Please refer to Figure 1 and Figure 5 , the guiding structure 3 includes a vertical edge guide plate 31 detachably connected to one side of the top of the chassis 1. The longitudinal section of the vertical edge guide plate 31 is L-shaped. A groove 32 is opened on the vertical edge guide plate 31. A threaded rod 35 is movably penetrated through the vertical edge guide plate 31 through the groove 32. A hexagonal block 33 is fixedly connected to the top of the threaded rod 35, and the hexagonal block 33 is in close contact with the vertical edge guide plate 31. A grip block 34 is fixedly connected to the top of the hexagonal block 33. The position of the vertical edge guide plate 31 is adjusted and fixed by the hexagonal block 33, the grip block 34 and the threaded rod 35 through the groove 32. The vertical edge guide plate 31 guides and forms the vertical edge of the bag.
[0035] Please refer to Figure 5, threaded holes 36 are provided on the chassis 1, and the threaded holes 36 are adapted to the threaded rods 35. The threaded holes 36 facilitate the connection between the threaded rods 35 and the chassis 1, thus facilitating the detachable installation of the vertical side guide plate 31 on the chassis 1.
[0036] Please refer to Figure 1 and Figure 3 , the shaping structure 4 includes a top plate 41 fixedly arranged on the other side of the chassis 1. A limiting block 42 is fixedly connected to the inner top wall of the top plate 41. There are two limiting blocks 42, and the two limiting blocks 42 are symmetrically distributed with the central axis of the top plate 41 as the center. A roller 43 is fixedly arranged at the bottom of the limiting block 42. The limiting block 42 and the roller 43 shape the vertical sides of the bag after heat sealing.
[0037] Please refer to Figure 1 , Figure 3 and Figure 4 , the cooling structure 5 includes an exhaust hood 55 arranged on the central axis of the chassis 1. The opening of the exhaust hood 55 gradually increases from top to bottom. A sleeve 54 is fixedly connected to the top of the exhaust hood 55. A corrugated pipe 53 is fixedly connected to the top of the sleeve 54. An installation plate 56 is detachably connected to the top plate 41. A positioning bolt 59 is threadedly penetrated through the interior of the installation plate 56, and the positioning bolt 59 is threadedly connected to the top plate 41. The positioning bolt 59 facilitates the limiting treatment of the installation plate 56. Wind is transmitted to the interior of the exhaust hood 55 through the corrugated pipe 53 and the sleeve 54 and ejected, thereby cooling the vertical sides of the bag after heat sealing.
[0038] Please refer to Figure 3-4 , one end of the corrugated pipe 53 far from the sleeve 54 is fixedly connected to a wind collecting hood 52. The opening of the wind collecting hood 52 gradually increases from left to right. A suction fan 51 is fixedly connected to one side of the wind collecting hood 52. After the suction fan 51 operates, wind is transmitted to the interior of the corrugated pipe 53 through the wind collecting hood 52.
[0039] Please refer to Figure 4 , a rubber pad 57 is fixedly connected to the installation plate 56. The rubber pad 57 is mainly made of rubber material and has a certain elasticity. A tie strap 58 is arranged on the rubber pad 57. The sleeve 54 is detachably connected to the rubber pad 57 through the tie strap 58 on the installation plate 56. The rubber pad 57 and the tie strap 58 facilitate the installation of the sleeve 54 on the installation plate 56, thereby increasing the stability of the exhaust of the exhaust hood 55.
[0040] Working principle: After the middle-sealed bellows bag is unfolded from the packaging film roll, the edges are heat-melted by a hot air blower. The bag folding mechanism folds the packaging film into a bag shape, and a standing edge is formed on the bag. The bag after forming the standing edge is transported along the central axis of the chassis 1. The holding block 34 drives the hexagonal block 33 to rotate, and the threaded rod 35 rotates and moves through the threaded hole 36 to be connected to the chassis 1, so as to position the vertical edge guide plate 31. The bag during transportation is guided and formed by the two vertical edge guide plates 31. After the bag moves between the two heat-sealing structures 2, the reciprocating cylinder 21 operates, the movable plate 22 drives the spring 23 to move, the push plate 24 drives the mounting bracket 25 to move, and the two heating clamping plates 26 move towards the adjacent side. Then, under the action of the thermocouple 27, the standing edge of the bag is heat-sealed. The spring 23 and the guide rod 28 buffer the clamping force of the two heating clamping plates 26 on the standing edge of the bag. The heat-sealed standing edge is vertically shaped by the two rollers 43. Subsequently, the exhaust fan 51 operates, and the air is transmitted through the air collecting hood 52, the corrugated pipe 53 and the sleeve 54 to the inside of the exhaust hood 55 and ejected, so as to cool the standing edge of the bag.
[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element 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.
[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection, an electrical connection or a communication connection with each other; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0043] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.
Claims
1. A sealing bag structure of a center-sealed accordion bag, characterized in that: The invention comprises a base frame (1), a heat sealing structure (2) is arranged on the top of the base frame (1), a guide structure (3) is arranged on one side of the top of the heat sealing structure (2), and the guide structure (3) is located upstream of the heat sealing structure (2), a shaping structure (4) is arranged on the other side of the top of the heat sealing structure (2), and the shaping structure (4) is located downstream of the heat sealing structure (2), and a cooling structure (5) is arranged on one side of the base frame (1); the heat sealing structure (2) comprises a reciprocating cylinder (21) fixedly arranged on the top of the base frame (1), The telescopic end of the reciprocating cylinder (21) is fixedly connected to a movable plate (22), a guide rod (28) is movably penetrated inside the movable plate (22), one end of the guide rod (28) is fixedly connected to a push plate (24), a spring (23) is fixedly arranged between the push plate (24) and the movable plate (22), the bottom of the push plate (24) is fixedly connected to a mounting frame (25), a heating clamp (26) is fixedly connected to the mounting frame (25), and a thermocouple (27) is fixedly arranged on the heating clamp (26).
2. The sealing bag structure of a center-sealed accordion bag according to claim 1, characterized in that: A slider (29) is fixedly connected to the bottom of the movable plate (22), and the slider (29) is slidably connected to the top of the base frame (1).
3. The sealing bag structure of a center-sealed accordion bag according to claim 1, characterized in that: The guide structure (3) comprises a vertical guide plate (31) detachably connected to one side of the top of the base frame (1); a groove (32) is provided on the vertical guide plate (31); a threaded rod (35) movably penetrates the vertical guide plate (31) through the groove (32); a hexagonal block (33) is fixedly connected to the top of the threaded rod (35); the hexagonal block (33) is tightly attached to the vertical guide plate (31); and a gripping block (34) is fixedly connected to the top of the hexagonal block (33).
4. The sealing bag structure of a center-sealed accordion bag according to claim 3, characterized in that: The base frame (1) is provided with a threaded hole (36), and the threaded hole (36) is adapted to fit the threaded rod (35).
5. The sealing bag structure of a center-sealed accordion bag according to claim 1, characterized in that: The shaping structure (4) comprises a top plate (41) fixedly arranged on the other side of the base frame (1); the inner top wall of the top plate (41) is fixedly connected to a limit block (42); and a roller (43) is fixedly arranged at the bottom of the limit block (42).
6. The sealing bag structure of a center-sealed accordion bag according to claim 5, characterized in that: The cooling structure (5) comprises an exhaust hood (55) arranged on the central axis of the base frame (1); the top of the exhaust hood (55) is fixedly connected to a sleeve (54); the top of the sleeve (54) is fixedly connected to a bellows (53); a mounting plate (56) is detachably connected to the top plate (41); a positioning bolt (59) is passed through the internal thread of the mounting plate (56), and the positioning bolt (59) is threadedly connected to the top plate (41).
7. The sealing bag structure of a center-sealed accordion bag according to claim 6, characterized in that: One end of the corrugated pipe (53) away from the sleeve (54) is fixedly connected to an air collecting hood (52), and one side of the air collecting hood (52) is fixedly connected to an exhaust fan (51).
8. The sealing bag structure of a center-sealed accordion bag according to claim 6, characterized in that: A rubber pad (57) is fixedly connected to the mounting plate (56), a cable tie (58) is provided on the rubber pad (57), and the sleeve (54) is detachably connected to the mounting plate (56) through the cable tie (58) and the rubber pad (57).