Plastic bag sealing device

Abstract

The utility model discloses a plastic bag sealing device, which belongs to the technical field of sealing machines and comprises a mounting rack, a vertical moving module, an arrangement mechanism and a sealing module. A loading box is fixedly mounted in the middle of the mounting rack; a vertical moving module is mounted on the mounting rack; tidying mechanisms for tidying the material bags are symmetrically mounted at the moving end of the vertical moving module and on the mounting rack; the arrangement mechanism comprises a first arrangement module and a second arrangement module, the first arrangement module is mounted at the moving end of the vertical moving module and on the mounting rack, and the second arrangement module is mounted on the first arrangement module; sealing modules used for sealing the material bags are symmetrically installed at the moving end of the vertical moving module. By means of the mode, through cooperation of the vertical moving module, the first arranging module, the second arranging module and the sealing module, the device can arrange bag openings of the material bags when the material bags bear different numbers of materials, and air in the material bags is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing machine technology, specifically to a plastic bag sealing device. Background Technology

[0002] In the production of rubber compound, many raw materials need to be packed in plastic bags during preparation for subsequent transportation and feeding. To prevent the bags from tipping over and spilling material, causing product defects, the bags are usually tied at the top with a knot or with plastic cable ties. However, using cable ties often results in the plastic cable ties getting mixed into the rubber compound. Cable ties are made of materials with high melting points and cannot melt during mixing, ultimately producing impurities. While tying the plastic bags themselves may meet the melting point requirements, the large volume at the knot and the dense, thick packing of plastic mean that it often doesn't melt properly when it enters the internal mixer due to the limited mixing time. This also makes it harder to detect during production, leading to impurities and subsequent quality risks. Therefore, a heat-sealing device is used to seal the plastic bags.

[0003] For example, Chinese patent CN218907844U discloses a heat sealing machine, which is equipped with a telescopic device and a heating device. The telescopic device controls the heating device to adhere to or separate from the plastic bag, thereby achieving the clamping and heat sealing of the plastic bag opening.

[0004] However, during the production of rubber compound, it is necessary to avoid excessive air in the materials and plastic bags; at the same time, the plastic bags carrying the raw materials are relatively large, and the bag openings are prone to overlapping; the amount of material in the plastic bags is set according to requirements, and the materials in the plastic bags are not the same, making it difficult for the device to automatically expel the air from the bag openings and to automatically straighten the bag openings.

[0005] Based on this, the present invention designs a plastic bag sealing device to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a plastic bag sealing device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A plastic bag sealing device includes a mounting frame, a vertical moving module, a sorting mechanism, and a sealing module;

[0009] A material carrier box is fixedly installed in the middle of the mounting frame; a vertical moving module is installed on the mounting frame; a sorting mechanism for sorting the material bag is symmetrically installed on the moving end of the vertical moving module and on the mounting frame; the sorting mechanism includes a first sorting module and a second sorting module, the first sorting module is installed on the moving end of the vertical moving module and on the mounting frame, and the second sorting module is installed on the first sorting module.

[0010] The vertical moving module has sealing modules symmetrically installed on its moving end for sealing the material bag.

[0011] Furthermore, the vertical movement module includes a motor, a transmission module, a threaded rod, a guide rod, and a support frame. The motor is fixedly mounted on the mounting platform; the transmission module is mounted on the mounting platform; the power input end of the transmission module is fixedly connected to the output end of the motor; the power output end of the transmission module is fixedly mounted on the threaded rod; the threaded rod is rotatably mounted on the mounting platform; the support frame is threadedly connected to the threaded rod via a threaded sleeve; guide rods are symmetrically fixedly mounted on the mounting platform; the support frame and the guide rod are in a limited sliding connection.

[0012] Furthermore, the sealing module includes a sealing cylinder, a second guide rod, a moving plate, and a heat sealing strip. The sealing cylinder is fixedly mounted on the support frame. The moving plate is fixedly mounted on the output end of the sealing cylinder. The second guide rod is symmetrically fixedly mounted on the moving plate, and the second guide rod is slidably connected to the support frame. A heat sealing strip for heat sealing the material bag is fixedly mounted on the moving plate.

[0013] Furthermore, the first sorting module includes a sorting component and a guiding component. The sorting component is mounted on a support frame, and the guiding component is mounted on the sorting component and the mounting platform.

[0014] Furthermore, the sorting assembly includes a movable frame, a first guide rod, a spring, a rolling rod, a synchronizing rod, and a connecting rod. The first guide rod is symmetrically fixedly mounted on the movable frame; the first guide rod is slidably connected to the support frame; a spring is sleeved on one of the first guide rods; the two ends of the spring are fixedly connected to the support frame and the movable frame, respectively; rolling rods are symmetrically rotatably mounted inside the movable frame; the middle part of the synchronizing rod is rotatably mounted on the support frame, and connecting rods are symmetrically arranged at the ends of the synchronizing rods. One end of the connecting rod is rotatably connected to the end of the synchronizing rod, and the other end of the connecting rod is rotatably connected to the movable frame.

[0015] Furthermore, the guide assembly includes a guide frame and a limiting rod, with the outer ends of the two first guide rods fixedly installed on the guide frame; the guide frame is symmetrically fixedly installed on the mounting platform; the guide frame and the limiting rod are in close sliding connection; the guide frame is provided with a vertical limiting section and an inclined guide section.

[0016] Furthermore, two sets of second sorting modules are symmetrically arranged on the support frame.

[0017] Furthermore, the second sorting module includes a rodless cylinder, a sorting cylinder, a mounting frame, and rollers. The rodless cylinders are symmetrically fixedly mounted on the moving frame. The sorting cylinders are fixedly mounted on the moving end of the rodless cylinders. The mounting frame is fixedly mounted on the output end of the sorting cylinders. Rollers are rotatably mounted on the mounting frame.

[0018] Compared with the prior art, the advantages of this utility model are as follows: The material bag is placed in the material carrier box, supported by the bottom of the bag within the box. Then, the vertical moving module drives the first sorting module, the second sorting module, and the sealing module to move vertically upwards. The first sorting module vertically sorts the bag opening until it reaches the top of the material inside the bag. During this process, the first sorting module squeezes the bag opening, reducing air inside the bag, thus preventing any impact on the subsequent rubber compounding process. Then, the second sorting module horizontally sorts the bag opening to prevent overlapping. Finally, the sealing module seals the bag. Through the cooperation of the vertical moving module, the first sorting module, the second sorting module, and the sealing module, the device can sort the bag opening and reduce air inside the bag when the bag carries different amounts of material. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This utility model provides a three-dimensional plastic bag sealing device. Figure 1 ;

[0021] Figure 2 This is a front view of a plastic bag sealing device according to the present invention;

[0022] Figure 3 This utility model provides a three-dimensional plastic bag sealing device. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the heat sealing strip and its connection structure;

[0024] Figure 5 This is a schematic diagram of the support frame and its connecting structure;

[0025] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0026] The labels in the diagram represent:

[0027] 1. Mounting frame; 11. Material box; 2. Vertical moving module; 21. Motor; 22. Transmission module; 23. Threaded rod; 24. Guide rod; 25. Support frame; 3. Sorting mechanism; 31. First sorting module; 311. Moving frame; 312. First guide rod; 313. Spring; 314. Rolling rod; 315. Synchronizing rod; 316. Connecting rod; 317. Guide frame; 318. Limiting rod; 32. Second sorting module; 321. Rodless cylinder; 322. Sorting cylinder; 323. Mounting frame; 324. Roller; 4. Sealing module; 41. Sealing cylinder; 42. Second guide rod; 43. Moving plate; 44. Heat sealing strip; 5. Material bag. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0030] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-3 A plastic bag sealing device includes a mounting frame 1, a vertical moving module 2, a sorting mechanism 3, and a sealing module 4;

[0031] A material carrier box 11 is fixedly installed in the middle of the mounting frame 1; a vertical moving module 2 is installed on the mounting frame 1; a sorting mechanism 3 for sorting the material bag 5 is symmetrically installed on the moving end of the vertical moving module 2 and the mounting frame 1; the sorting mechanism 3 includes a first sorting module 31 and a second sorting module 32, the first sorting module 31 is installed on the moving end of the vertical moving module 2 and the mounting frame 1, and the second sorting module 32 is installed on the first sorting module 31;

[0032] The vertical moving module 2 is symmetrically equipped with sealing modules 4 for sealing the material bag 5.

[0033] In this embodiment, when the plastic bag sealing device is working normally, the material bag 5 is placed into the material carrier box 11, and the bottom of the material bag 5 is supported by the material carrier box 11. Then, the vertical moving module 2 drives the first sorting module 31, the second sorting module 32 and the sealing module 4 to move vertically upward. The first sorting module 31 sorts the opening of the material bag 5 vertically until the first sorting module 31 moves to the upper side of the material inside the material bag 5. During this process, the first sorting module 31 squeezes the opening of the material bag 5 to reduce the amount of material inside. The air inside bag 5 is removed to prevent it from affecting the subsequent rubber compounding process. Then, the second sorting module 32 is operated to sort the horizontal direction of the bag opening of bag 5 to prevent overlapping at the bag opening. Then, the sealing module 4 seals the bag 5. Thus, through the cooperation of the vertical moving module 2, the first sorting module 31, the second sorting module 32 and the sealing module 4, the device can sort the bag opening of bag 5 and reduce the air inside bag 5 when bag 5 carries different amounts of material.

[0034] Example 2: In some embodiments, such as Figures 1-3 As shown, in a preferred embodiment of this utility model, the vertical moving module 2 includes a motor 21, a transmission module 22, a threaded rod 23, a guide rod 24, and a support frame 25. The motor 21 is fixedly mounted on the mounting frame 1; the transmission module 22 is mounted on the mounting frame 1; the power input end of the transmission module 22 is fixedly connected to the output end of the motor 21; the power output end of the transmission module 22 is fixedly mounted on the threaded rod 23; the threaded rod 23 is rotatably mounted on the mounting frame 1; the support frame 25 is threadedly connected to the threaded rod 23 via a threaded sleeve; the guide rods 24 are symmetrically fixedly mounted on the mounting frame 1; the support frame 25 and the guide rods 24 are in a limited sliding connection.

[0035] Transmission module 22 is configured as a synchronous belt and synchronous pulley transmission structure; the power input end and power output end of the synchronous belt and synchronous pulley transmission structure are both synchronous pulleys;

[0036] like Figure 4 As shown, the sealing module 4 includes a sealing cylinder 41, a second guide rod 42, a moving plate 43, and a heat sealing strip 44. The sealing cylinder 41 is fixedly mounted on the support frame 25. The moving plate 43 is fixedly mounted on the output end of the sealing cylinder 41. The second guide rod 42 is symmetrically fixedly mounted on the moving plate 43, and the second guide rod 42 is slidably connected to the support frame 25. A heat sealing strip 44 for heat sealing the material bag 5 is fixedly mounted on the moving plate 43.

[0037] The heat-sealing strip 44 is a metal strip, and an electric heating wire for heating the metal strip is installed inside the metal strip.

[0038] like Figures 1-3 , Figure 5 and Figure 6The first sorting module 31 includes a sorting component and a guiding component. The sorting component is mounted on the support frame 25, and the guiding component is mounted on the sorting component and the mounting platform 1.

[0039] The sorting assembly includes a movable frame 311, a first guide rod 312, a spring 313, a rolling rod 314, a synchronizing rod 315, and a connecting rod 316. The first guide rod 312 is symmetrically fixedly installed on the movable frame 311. The first guide rod 312 is slidably connected to the support frame 25. A spring 313 is sleeved on one of the first guide rods 312. The two ends of the spring 313 are fixedly connected to the support frame 25 and the movable frame 311, respectively. The rolling rod 314 is symmetrically rotatably installed inside the movable frame 311. The middle part of the synchronizing rod 315 is rotatably installed on the support frame 25. The ends of the synchronizing rod 315 are symmetrically provided with connecting rods 316. One end of the connecting rod 316 is rotatably connected to the end of the synchronizing rod 315, and the other end of the connecting rod 316 is rotatably connected to the movable frame 311.

[0040] The guide assembly includes a guide frame 317 and a limiting rod 318. The outer ends of two first guide rods 312 are fixedly installed on the guide frame 317. The guide frame 317 is symmetrically fixedly installed on the mounting platform 1. The guide frame 317 and the limiting rod 318 are in close sliding connection. The guide frame 317 is provided with a vertical limiting section and an inclined guide section.

[0041] Two sets of second sorting modules 32 are symmetrically arranged on the support frame 25;

[0042] The second sorting module 32 includes a rodless cylinder 321, a sorting cylinder 322, a mounting bracket 323, and rollers 324. The rodless cylinder 321 is symmetrically fixedly mounted on the moving frame 311. The sorting cylinder 322 is fixedly mounted on the moving end of the rodless cylinder 321. The mounting bracket 323 is fixedly mounted on the output end of the sorting cylinder 322. The rollers 324 are rotatably mounted on the mounting bracket 323.

[0043] In this embodiment, when the vertical moving module 2, the sorting mechanism 3, and the sealing module 4 are working normally, the material bag 5 is placed into the material box 11, and the bottom of the material bag 5 is supported by the material box 11. The motor 21 drives the threaded rod 23 to rotate through the transmission module 22. The threaded rod 23 drives the support frame 25 to move vertically under the limiting action of the guide rod 24, thereby driving the moving frame 311 to move vertically. In the initial state, the moving frame 311 is located on the lower side of the material box 11, and the limiting rod 318 is located at the bottom of the inclined guide section of the guide frame 317. At this time, the moving frame 311 is located on the outer side of the material box 11. The spring 313 is compressed. The rolling rod 314 on the inner side of the moving frame 311 slides against the material box 11 until it contacts the outside of the material bag 5. The spring 313 resets and pushes the moving frame 311 to move horizontally under the limiting action of the first guide rod 312, so that the rolling rod 314 is in contact with the material bag 5. The rolling rods 314 on both sides move from bottom to top. Push the bag 5 until the rolling rod 314 moves to the top of the material in the bag 5; the spring 313 resets and drives the moving frames 311 on both sides to move closer; the moving frames 311 on both sides are synchronously aligned when the synchronous rod 315 and the connecting rod 316 are set; until the rolling rods 314 on both sides clamp the bag 5; the air on the top of the material in the bag 5 is discharged by the rolling rods 314; after the rolling rods 314 on both sides move closer; the tidying cylinder 322 drives the rollers 324 to move closer by the mounting frame 323, so that the rollers 324 on both sides press the bag 5; then the rodless cylinder 321 drives the two sets of tidying cylinders 322 to move horizontally, so that the rollers 324 tidy the bag 5 horizontally and reduce the wrinkles at the bag opening of the bag 5; after tidying, the sealing cylinder 41 drives the moving plate 43 to move horizontally under the limiting action of the second guide rod 42, until the heat sealing strips 44 on both sides clamp the bag 5, and the heat sealing strips 44 heat seal the bag 5.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A plastic bag sealing device, comprising a mounting frame (1), a vertical moving module (2), a sorting mechanism (3), and a sealing module (4), characterized in that: A material box (11) is fixedly installed in the middle of the mounting frame (1); a vertical moving module (2) is installed on the mounting frame (1); a sorting mechanism (3) for sorting the material bag (5) is symmetrically installed on the moving end of the vertical moving module (2) and the mounting frame (1); the sorting mechanism (3) includes a first sorting module (31) and a second sorting module (32), the first sorting module (31) is installed on the moving end of the vertical moving module (2) and the mounting frame (1), and the second sorting module (32) is installed on the first sorting module (31); The vertical moving module (2) is symmetrically equipped with sealing modules (4) for sealing the material bag (5).

2. The plastic bag sealing device according to claim 1, characterized in that, The vertical moving module (2) includes a motor (21), a transmission module (22), a threaded rod (23), a guide rod (24), and a support frame (25). The motor (21) is fixedly mounted on the mounting frame (1). The transmission module (22) is mounted on the mounting frame (1). The power input end of the transmission module (22) is fixedly connected to the output end of the motor (21). The power output end of the transmission module (22) is fixedly mounted on the threaded rod (23). The threaded rod (23) is rotatably mounted on the mounting frame (1). The support frame (25) is threadedly connected to the threaded rod (23) through a threaded sleeve. The guide rods (24) are symmetrically fixedly mounted on the mounting frame (1). The support frame (25) and the guide rods (24) are in a limited sliding connection.

3. The plastic bag sealing device according to claim 2, characterized in that, The sealing module (4) includes a sealing cylinder (41), a second guide rod (42), a moving plate (43), and a heat sealing strip (44). The sealing cylinder (41) is fixedly installed on the support frame (25). The moving plate (43) is fixedly installed at the output end of the sealing cylinder (41). The second guide rod (42) is symmetrically fixedly installed on the moving plate (43). The second guide rod (42) is limited and slidably connected to the support frame (25). The heat sealing strip (44) for heat sealing the material bag (5) is fixedly installed on the moving plate (43).

4. The plastic bag sealing device according to claim 2, characterized in that, The first sorting module (31) includes a sorting component and a guide component. The sorting component is mounted on a support frame (25), and the guide component is mounted on the sorting component and the mounting platform (1).

5. The plastic bag sealing device according to claim 4, characterized in that, The sorting assembly includes a movable frame (311), a first guide rod (312), a spring (313), a rolling rod (314), a synchronizing rod (315), and a connecting rod (316). The first guide rod (312) is symmetrically fixedly installed on the movable frame (311). The first guide rod (312) is slidably connected to the support frame (25). A spring (313) is sleeved on one of the first guide rods (312). The two ends of the spring (313) are fixedly connected to the support frame (25) and the movable frame (311) respectively. The rolling rod (314) is symmetrically rotatably installed on the inner side of the movable frame (311). The middle part of the synchronizing rod (315) is rotatably installed on the support frame (25). The ends of the synchronizing rod (315) are symmetrically provided with connecting rods (316). One end of the connecting rod (316) is rotatably connected to the end of the synchronizing rod (315), and the other end of the connecting rod (316) is rotatably connected to the movable frame (311).

6. The plastic bag sealing device according to claim 5, characterized in that, The guide assembly includes a guide frame (317) and a limiting rod (318). The outer ends of two first guide rods (312) are fixedly installed on the guide frame (317). The guide frame (317) is symmetrically fixedly installed on the mounting frame (1). The guide frame (317) and the limiting rod (318) are in close contact and slidably connected. The guide frame (317) is provided with a vertical limiting section and an inclined guide section.

7. The plastic bag sealing device according to claim 5, characterized in that, Two sets of second sorting modules (32) are symmetrically arranged on the support frame (25).

8. The plastic bag sealing device according to claim 5, characterized in that, The second sorting module (32) includes a rodless cylinder (321), a sorting cylinder (322), a mounting bracket (323), and rollers (324). The rodless cylinder (321) is symmetrically fixedly mounted on the moving frame (311). The sorting cylinder (322) is fixedly mounted on the moving end of the rodless cylinder (321). The mounting bracket (323) is fixedly mounted on the output end of the sorting cylinder (322). The rollers (324) are rotatably mounted on the mounting bracket (323).

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