Bag opening double-side flattening device
By designing a double-sided flattening device for the bag opening and adding a lower heat-sealing component and an upper heat-sealing component, the problems of incomplete bag opening closure and low production efficiency are solved. This achieves effective sealing of the bag opening and continuity of the production process, improving the integrity of the sealing and production efficiency.
Patent Information
- Application Number
- CN202520412864.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing flattening device lacks a heat-sealing structure, which means that the bag opening cannot be completely sealed, potentially leading to leakage of contents. Furthermore, the flattening and heat-sealing processes are carried out separately, reducing production efficiency.
A double-sided flattening device for the bag opening was designed, with the addition of a lower heat-sealing component and an upper heat-sealing component. This device can simultaneously heat-seal the upper and lower parts of the bag opening and is equipped with a flattening component to achieve double-sided flattening of the bag opening, ensuring sealing performance and production continuity.
It achieves effective sealing of the bag opening, prevents leakage of contents, improves production efficiency and sealing integrity, enhances the strength and sealing performance of the bag opening, and improves the continuity and efficiency of the production process.
Smart Images
Figure CN223835943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of flattening devices, specifically a double-sided flattening device for bag openings. Background Technology
[0002] The background technology of bag opening flattening devices is commonly used in packaging, production, and automation fields, especially in packaging processes involving bagged products (such as food, chemicals, and pharmaceuticals). It involves applying pressure to press, flatten, and remove wrinkles from materials to meet product quality requirements. This device is primarily used to ensure the flatness of the bag opening, thereby improving the bag sealing quality and aesthetics, enhancing automation efficiency in the production process, and reducing unnecessary waste.
[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: 1. Common flattening devices may not have the corresponding heat sealing structure, which means that the material is only flattened during the packaging process, resulting in the bag opening not being completely sealed and the internal contents may leak; 2. Common flattening devices usually flatten the bag opening of the material as a whole, which means that the material needs to be flattened and heat sealed separately during the packaging process, reducing production efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a double-sided flattening device for bag openings to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a double-sided flattening device for bag openings, comprising a first connecting plate, connecting rods vertically installed through both sides of the top of the first connecting plate, first mounting blocks installed at the outer ends of the connecting rods, a support assembly installed on the top of the first connecting plate, a lower heat-sealing assembly installed on the inner side of the support assembly at the top of the first connecting plate, a second connecting plate installed above the first connecting plate on the outer side of the connecting rods, a flattening assembly installed on the top of the second connecting plate, an upper heat-sealing assembly installed on the inner side of the flattening assembly at the bottom of the second connecting plate, and second mounting blocks installed on both sides of the top of the first and second connecting plates.
[0005] The support assembly includes a first bracket installed at the bottom of a first connecting plate, first mounting plates installed at both ends of the first bracket, first fixing blocks installed at both ends of the top of the first bracket, a first connecting frame installed on the top of the first fixing blocks, a first main support plate fixedly connected to the top of the first connecting frame, a first secondary support plate installed on the upper part of one end of the first main support plate, and support blocks installed on the top of the first main support plate and the first secondary support plate.
[0006] The lower heat sealing assembly includes a first main cylinder and a first auxiliary cylinder installed on both sides of the bottom of the first connecting plate. A first fixing rod is installed at one end of the first main cylinder and the first auxiliary cylinder, and a lower heat sealer is installed at the top of the first fixing rod.
[0007] The flattening assembly includes a second bracket mounted on the top of a second connecting plate. Second mounting plates are mounted on both ends of the second bracket. A second main cylinder and a second auxiliary cylinder are mounted on the inner ends of the second bracket. A second fixing block is mounted on one end of the second main cylinder and the second auxiliary cylinder. A pressing block is mounted on the bottom of the second fixing block. A second main support plate is mounted on the bottom of the pressing block. A second auxiliary support plate is mounted on the lower inner side of the second main support plate. Flattening blocks are mounted on the bottom of the second main support plate and the second auxiliary support plate.
[0008] The upper heat sealing assembly includes a third main cylinder and a third auxiliary cylinder installed on both sides of the top of the second connecting plate. A second fixing rod is installed at one end of the third main cylinder and the third auxiliary cylinder, and an upper heat sealer is installed at the bottom of the second fixing rod.
[0009] More preferably, the first bracket bolts and nuts are installed at the bottom of the first connecting plate, the first connecting frame is installed at the top of the first fixing block by bolts and nuts, and the first secondary support plate is installed at the upper part of one end of the first main support plate by bolts and nuts.
[0010] More preferably, the first main cylinder and the first auxiliary cylinder are mounted on the bottom sides of the first connecting plate by bolts and nuts, and the first main cylinder and the first auxiliary cylinder are synchronous cylinders, and the first main cylinder, the first auxiliary cylinder and the lower heat sealer constitute a transmission structure.
[0011] More preferably, the second bracket is installed on the top of the second connecting plate by bolts and nuts, and the second auxiliary support plate is installed on the lower inner side of the second main support plate by bolts and nuts.
[0012] More preferably, the second main cylinder and the second auxiliary cylinder are synchronous cylinders, and the second main cylinder, the second auxiliary cylinder and the flattening block constitute a transmission structure.
[0013] More preferably, the third main cylinder and the third auxiliary cylinder are synchronous cylinders, and the third main cylinder, the third auxiliary cylinder and the upper heat sealer constitute a transmission structure.
[0014] More preferably, both the first connecting plate and the second connecting plate have rounded corners.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] In this invention, a lower heat-sealing component and an upper heat-sealing component are added, which enable heat sealing of the bag opening. This seals the bag opening and allows for simultaneous heat sealing of both the upper and lower parts of the bag opening, resulting in a better seal and effectively preventing leakage of the contents. It also strengthens the bag opening, preventing it from cracking and increasing the integrity and airtightness of the packaging.
[0017] In this invention, a flattening component is added, which allows the flattening of both sides of the bag opening to be performed simultaneously. This enables the bag opening to be heat-sealed by the lower heat-sealing component and the upper heat-sealing component, allowing the flattening and heat-sealing operations to be performed at the same time. This increases the continuity of the device during use and thus effectively increases production efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0019] Figure 2 This is an exploded view of the support component of this utility model;
[0020] Figure 3 This is a schematic diagram of the lower heat-sealing assembly structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the exploded structure of the flattening component of this utility model;
[0022] Figure 5 This is a schematic diagram of the heat-sealing component structure of this utility model.
[0023] In the diagram: 1. First connecting plate; 2. Connecting rod; 3. First mounting block; 4. Support assembly; 401. First bracket; 402. First mounting plate; 403. First fixing block; 404. First connecting frame; 405. First main support plate; 406. First auxiliary support plate; 407. Support block; 5. Lower heat sealing assembly; 501. First main cylinder; 502. First auxiliary cylinder; 503. First fixing rod; 504. Lower heat sealer; 6. Second 7. Connecting plate; 701. Flattening assembly; 702. Second bracket; 703. Second main cylinder; 704. Second auxiliary cylinder; 705. Second fixing block; 706. Pressing block; 707. Second main support plate; 708. Second auxiliary support plate; 709. Flattening block; 8. Upper heat sealing assembly; 801. Third main cylinder; 802. Third auxiliary cylinder; 803. Second fixing rod; 804. Upper heat sealer; 9. Second mounting block. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a double-sided flattening device for a bag opening, including a first connecting plate 1, a connecting rod 2 vertically installed through both sides of the top of the first connecting plate 1, a first mounting block 3 installed at both ends of the outer side of the connecting rod 2, a support component 4 installed on the top of the first connecting plate 1, a lower heat sealing component 5 installed on the top of the first connecting plate 1 inside the support component 4, a second connecting plate 6 installed on the outer side of the connecting rod 2 above the first connecting plate 1, a flattening component 7 installed on the top of the second connecting plate 6, an upper heat sealing component 8 installed on the bottom of the second connecting plate 6 inside the flattening component 7, and second mounting blocks 9 installed on both sides of the top of the first connecting plate 1 and the second connecting plate 6.
[0026] The support assembly 4 includes a first bracket 401 installed at the bottom of the first connecting plate 1, a first mounting plate 402 installed at both ends of the first bracket 401, a first fixing block 403 installed at both ends of the top of the first bracket 401, a first connecting frame 404 installed on the top of the first fixing block 403, a first main support plate 405 fixedly connected to the top of the first connecting frame 404, a first secondary support plate 406 installed on the upper part of one end of the first main support plate 405, and a support block 407 installed on the top of the first main support plate 405 and the first secondary support plate 406.
[0027] The lower heat sealing assembly 5 includes a first main cylinder 501 and a first auxiliary cylinder 502 installed on both sides of the bottom of the first connecting plate 1. A first fixing rod 503 is installed at one end of the first main cylinder 501 and the first auxiliary cylinder 502, and a lower heat sealer 504 is installed on the top of the first fixing rod 503.
[0028] The flattening assembly 7 includes a second bracket 701 mounted on the top of the second connecting plate 6. Second mounting plates 702 are mounted on both ends of the second bracket 701. A second main cylinder 703 and a second auxiliary cylinder 704 are mounted on the inner ends of the second bracket 701. A second fixing block 705 is mounted on one end of the second main cylinder 703 and the second auxiliary cylinder 704. A pressing block 706 is mounted on the bottom of the second fixing block 705. A second main support plate 707 is mounted on the bottom of the pressing block 706. A second auxiliary support plate 708 is mounted on the lower inner part of the second main support plate 707. A flattening block 709 is mounted on the bottom of the second main support plate 707 and the second auxiliary support plate 708.
[0029] The upper heat sealing assembly 8 includes a third main cylinder 801 and a third auxiliary cylinder 802 installed on both sides of the top of the second connecting plate 6. A second fixing rod 803 is installed at one end of the third main cylinder 801 and the third auxiliary cylinder 802, and an upper heat sealer 804 is installed at the bottom of the second fixing rod 803.
[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the first bracket 401 is bolted and nutped at the bottom of the first connecting plate 1, and the first connecting frame 404 is bolted and nutped at the top of the first fixing block 403. The first secondary support plate 406 is bolted and nutped at the upper part of one end of the first main support plate 405. This design allows for quick installation and disassembly of the first bracket 401, the first connecting frame 404, and the first secondary support plate 406, enabling workers to quickly replace parts. The entire process is relatively easy, reducing labor costs and saving time, thereby further increasing production efficiency.
[0031] In this embodiment, as Figure 1 and Figure 3 As shown, the first main cylinder 501 and the first auxiliary cylinder 502 are installed on both sides of the bottom of the first connecting plate 1 by bolts and nuts. The first main cylinder 501 and the first auxiliary cylinder 502 are synchronous cylinders, and the first main cylinder 501, the first auxiliary cylinder 502 and the lower heat sealer 504 form a transmission structure. Through this design, the first main cylinder 501 and the first auxiliary cylinder 502 can be quickly installed and disassembled, and the first main cylinder 501 and the first auxiliary cylinder 502 can simultaneously drive the lower heat sealer 504 to move vertically, thereby heat sealing the lower part of the bag opening and increasing production efficiency.
[0032] In this embodiment, as Figure 1 and Figure 4 As shown, the second bracket 701 is installed on the top of the second connecting plate 6 by bolts and nuts, and the second auxiliary support plate 708 is installed on the lower inner side of the second main support plate 707 by bolts and nuts. This design allows the second bracket 701 and the second auxiliary support plate 708 to be quickly installed and disassembled, enabling workers to quickly replace certain parts. The whole process is relatively easy, reducing labor costs and saving time, thereby further increasing production efficiency.
[0033] In this embodiment, as Figure 1 and Figure 4As shown, the second main cylinder 703 and the second auxiliary cylinder 704 are synchronous cylinders, and the second main cylinder 703, the second auxiliary cylinder 704 and the flattening block 709 constitute a transmission structure. Through this design, the second main cylinder 703 and the second auxiliary cylinder 704 can simultaneously drive the flattening block 709 to move vertically, thereby flattening the bag opening and simultaneously flattening both sides of the bag opening. This allows the subsequent heat sealing work to proceed smoothly, increases the continuity of the flattening and heat sealing work, and thus increases production efficiency.
[0034] In this embodiment, as Figure 1 and Figure 5 As shown, the third main cylinder 801 and the third auxiliary cylinder 802 are synchronous cylinders, and the third main cylinder 801, the third auxiliary cylinder 802 and the upper heat sealer 804 form a transmission structure. Through this design, the third main cylinder 801 and the third auxiliary cylinder 802 can simultaneously drive the upper heat sealer 804 to move vertically, thereby performing heat sealing work on the upper part of the bag opening, thus increasing production efficiency.
[0035] In this embodiment, as Figure 1 As shown, both the first connecting plate 1 and the second connecting plate 6 have rounded corners. This design reduces the risk of injury to workers who accidentally hit sharp edges, thus increasing safety.
[0036] The usage and advantages of this utility model: The working process of this double-sided bag opening flattening device is as follows:
[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, firstly, the bag opening is placed between the support block 407 and the flattening block 709. Then, the second main cylinder 703 and the second auxiliary cylinder 704 are activated. These cylinders simultaneously move the flattening block 709 vertically, flattening both sides of the bag opening. Next, the first main cylinder 501 and the first auxiliary cylinder 502 are opened. These cylinders move the lower heat sealer 504 vertically, further flattening the lower part of the bag opening. The first part performs heat sealing, and then the third main cylinder 801 and the third auxiliary cylinder 802 are opened. At this time, the third main cylinder 801 and the third auxiliary cylinder 802 will drive the upper heat sealer 804 to move vertically, thereby performing heat sealing on the upper part of the bag opening. When the sealing is completed, the lower heat sealer 504 and the upper heat sealer 804 will leave the bag opening first, and then the flattening block 709 will return to the waiting position through the second main cylinder 703 and the second auxiliary cylinder 704. At this time, the flattening heat sealing of the bag opening is completed.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A bag opening double-sided flattening device, comprising a first connecting plate (1), characterized in that: A connecting rod (2) is vertically installed through both sides of the top of the first connecting plate (1). A first mounting block (3) is installed at both ends of the connecting rod (2). A support assembly (4) is installed on the top of the first connecting plate (1). A lower heat sealing assembly (5) is installed on the top of the first connecting plate (1) inside the support assembly (4). A second connecting plate (6) is installed on the outside of the connecting rod (2) above the first connecting plate (1). A flattening assembly (7) is installed on the top of the second connecting plate (6). An upper heat sealing assembly (8) is installed on the bottom of the second connecting plate (6) inside the flattening assembly (7). A second mounting block (9) is installed on both sides of the top of the first connecting plate (1) and the second connecting plate (6). The support assembly (4) includes a first bracket (401) installed at the bottom of the first connecting plate (1), a first mounting plate (402) installed at both ends of the first bracket (401), a first fixing block (403) installed at both ends of the top of the first bracket (401), a first connecting frame (404) installed at the top of the first fixing block (403), a first main support plate (405) fixedly connected to the top of the first connecting frame (404), a first secondary support plate (406) installed at the upper part of one end of the first main support plate (405), and a support block (407) installed at the top of the first main support plate (405) and the first secondary support plate (406). The lower heat sealing assembly (5) includes a first main cylinder (501) and a first auxiliary cylinder (502) installed on both sides of the bottom of the first connecting plate (1). A first fixing rod (503) is installed at one end of the first main cylinder (501) and the first auxiliary cylinder (502), and a lower heat sealer (504) is installed at the top of the first fixing rod (503). The flattening assembly (7) includes a second bracket (701) installed on the top of the second connecting plate (6). The two ends of the second bracket (701) are equipped with second mounting plates (702). The two inner ends of the second bracket (701) are equipped with a second main cylinder (703) and a second auxiliary cylinder (704). A second fixing block (705) is installed at one end of the second main cylinder (703) and the second auxiliary cylinder (704). A pressing block (706) is installed at the bottom of the second fixing block (705). A second main support plate (707) is installed at the bottom of the pressing block (706). A second auxiliary support plate (708) is installed at the lower inner part of the second main support plate (707). A flattening block (709) is installed at the bottom of the second main support plate (707) and the second auxiliary support plate (708). The upper heat sealing assembly (8) includes a third main cylinder (801) and a third auxiliary cylinder (802) installed on both sides of the top of the second connecting plate (6). A second fixing rod (803) is installed at one end of the third main cylinder (801) and the third auxiliary cylinder (802), and an upper heat sealer (804) is installed at the bottom of the second fixing rod (803).
2. The bag opening double-sided flattening device according to claim 1, characterized in that: The first bracket (401) is bolted and nutped at the bottom of the first connecting plate (1), and the first connecting frame (404) is bolted and nutped at the top of the first fixing block (403), and the first secondary support plate (406) is bolted and nutped at the upper part of one end of the first main support plate (405).
3. The bag opening double-sided flattening device according to claim 1, characterized in that: The first main cylinder (501) and the first auxiliary cylinder (502) are installed on both sides of the bottom of the first connecting plate (1) by bolts and nuts. The first main cylinder (501) and the first auxiliary cylinder (502) are synchronous cylinders. The first main cylinder (501), the first auxiliary cylinder (502) and the lower heat sealer (504) constitute a transmission structure.
4. The bag opening double-sided flattening device according to claim 1, characterized in that: The second bracket (701) is installed on the top of the second connecting plate (6) by bolts and nuts, and the second auxiliary support plate (708) is installed on the lower inner side of the second main support plate (707) by bolts and nuts.
5. The bag opening double-sided flattening device according to claim 1, characterized in that: The second main cylinder (703) and the second auxiliary cylinder (704) are synchronous cylinders, and the second main cylinder (703), the second auxiliary cylinder (704) and the flattening block (709) constitute a transmission structure.
6. The bag opening double-sided flattening device according to claim 1, characterized in that: The third main cylinder (801) and the third auxiliary cylinder (802) are synchronous cylinders, and the third main cylinder (801), the third auxiliary cylinder (802) and the upper heat sealer (804) constitute a transmission structure.
7. The bag opening double-sided flattening device according to claim 1, characterized in that: Both the first connecting plate (1) and the second connecting plate (6) are rounded around their edges.