A bag forming device
The high-temperature sealing module, which uses a combination of hydraulic telescopic rod to drive dampers and springs, solves the problem of material cracking or deformation due to excessive instantaneous pressure during the high-temperature sealing process in bag forming devices. This achieves efficient material forming and precise processing, reducing production losses.
Patent Information
- Application Number
- CN202520873421.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-05-06
AI Technical Summary
In the high-temperature sealing process, existing bag forming equipment causes the upper and lower molds to be in direct rigid contact, and the instantaneous pressure peak exceeds the material's yield strength, resulting in excessive compression or stretching of the material, which leads to rupture or deformation and production losses.
The high-temperature sealing module uses a combination of hydraulic telescopic rod drive damper and spring. The damper pushes the high-temperature sealing module to squeeze the edge of the bag, forming a seal at high temperature. The spring absorbs kinetic energy to provide cushioning and reduce instantaneous pressure. Combined with the adjusting ring and bidirectional bearing, the pressure is precisely adjusted to avoid material cracking or deformation.
It effectively reduces the risk of material breakage or deformation, improves yield, reduces production losses, has a wide range of applications, and ensures processing accuracy and efficiency.
Smart Images
Figure CN224276481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bag forming devices, and in particular to a bag forming device. Background Technology
[0002] Bag forming equipment is used to manufacture various types of bags, typically in the production of plastic bags, packaging bags, etc. Its main function is to process plastic film or other materials through a series of processes to ultimately produce bags of various sizes and shapes. Bag forming equipment usually involves multiple mechanical modules, automating multiple steps such as forming, cutting, and sealing. The equipment typically extracts plastic film or other materials from rolls, heats the material through a heating system to soften and plasticize it, facilitating subsequent forming operations. Depending on the desired bag type, the material is stretched or compressed through a mold to form the basic shape of the bag. The equipment then folds the film into the outline of a bag and seals it using heat-sealing or cold-sealing techniques. Simultaneously, the equipment seals the bag opening using a heat-sealing system, typically employing hot-pressing or ultrasonic technology to ensure a secure opening. After forming and sealing, the equipment usually cuts the bags to a predetermined length or quantity using a cutting device, and automatically stacks the formed bags for subsequent packaging.
[0003] However, in the existing technology, many bag forming devices rely on manual operation or simple mechanical devices. During the high-temperature sealing process, the upper and lower molds are in direct rigid contact, and the instantaneous pressure peak exceeds the material yield strength, causing the material to be excessively squeezed or stretched and break or deform, resulting in production losses and defects. Utility Model Content
[0004] The purpose of this invention is to solve the technical problem that many existing bag forming devices rely on manual operation or simple mechanical devices. During the high-temperature sealing process, the upper and lower molds are in direct rigid contact, and the instantaneous pressure peak exceeds the material's yield strength, resulting in excessive compression or stretching of the material, causing it to crack or deform and generating production losses. Therefore, this invention proposes a bag forming device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bag forming device, including an operating table, a bracket fixedly connected to the upper surface of the operating table, a hydraulic telescopic rod fixedly connected to one side surface of the bracket, an installation plate fixedly connected to the lower end of the hydraulic telescopic rod, two dampers fixedly connected to the lower surface of the installation plate, a high-temperature sealing module fixedly connected to the lower ends of the two dampers, and two springs fixedly connected to the upper surface of the high-temperature sealing module.
[0006] Furthermore, the outer surfaces of both dampers are connected to adjusting rings by threads, and one side surface of each adjusting ring is fixedly connected to a bidirectional bearing, the side surface of which is fixedly connected to the upper end of the two springs.
[0007] Furthermore, the outer surfaces of the two dampers are embedded inside the two springs.
[0008] Furthermore, both dampers have a display plane on their outer surface, and a pressure gauge is provided on the outer surface of the display plane.
[0009] Furthermore, the outer surface of the bracket has two transverse limiting grooves, and each transverse limiting slider is embedded inside the two transverse limiting grooves. The opposing surfaces of the two transverse limiting sliders are fixedly connected to the outer surface of the mounting plate.
[0010] Furthermore, each of the two transverse limiting slides has two vertical limiting slides on its inner wall surface, and each of the four vertical limiting slides has a vertical limiting slider embedded in its inner wall surface. One side surface of each of the four vertical limiting sliders is fixedly connected to the outer surface of the two transverse limiting sliders.
[0011] 1. In this utility model, during use, the semi-finished bag is driven by a conveying device to be transported from one end of the operating table to the other. During the transport process, the hydraulic telescopic rod pushes the mounting plate downwards at regular intervals, causing the two dampers to push the high-temperature sealing module to squeeze the semi-finished bag. Under the action of high temperature, when the edge of the semi-finished bag softens, the two edges will be pressed together to form the bag seal, thus shaping the bag. The two dampers and two springs compress their stroke when the high-temperature sealing module is under force, absorbing kinetic energy and providing buffer, reducing the excessive pressure applied to the material instantaneously, reducing the risk of the material breaking or deforming due to excessive compression or stretching, improving the yield rate, and reducing production losses.
[0012] 2. In this utility model, the stroke of the hydraulic telescopic rod remains constant when different pressures are required. Rotating the two adjusting rings causes the two bidirectional bearings to rotate and compress the two springs. Referring to the pressure scale on the display plane and the position of the bidirectional bearings, the spring stroke is precisely adjusted to obtain the required pressure. This allows for the processing of bags that do not meet the required specifications, making it widely applicable. When the two springs are subjected to lateral force, the damper provides support for the springs, preventing them from bending and ensuring their normal operation. When the mounting plate moves, the two lateral limiting sliders slide synchronously inside the two lateral limiting grooves, and the four vertical limiting sliders slide inside the four vertical limiting grooves, providing lateral and vertical support for the mounting plate. This prevents the mounting plate from tilting or rotating when subjected to uneven force, ensuring processing accuracy. Attached Figure Description
[0013] Figure 1A three-dimensional structural diagram of a bag forming device provided by this utility model;
[0014] Figure 2 A cross-sectional perspective view of a support frame for a bag forming device provided by this utility model;
[0015] Figure 3 A three-dimensional structural diagram of a damper for a bag forming device provided by this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of a bag forming device provided by the present invention.
[0017] Legend: 1. Control panel; 2. Bracket; 3. Lateral limiting slide; 4. Hydraulic telescopic rod; 5. Mounting plate; 6. Lateral limiting slider; 7. Damper; 8. Spring; 9. High-temperature edge sealing module; 10. Vertical limiting slider; 11. Vertical limiting slide; 12. Adjusting ring; 13. Two-way bearing; 14. Display plane; 15. Pressure gauge. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example 1
[0020] like Figure 1-4 As shown, the present invention provides a technical solution: a bag forming device, including an operating table 1, a support 2 fixedly connected to the upper surface of the operating table 1, a hydraulic telescopic rod 4 fixedly connected to one side surface of the support 2, an mounting plate 5 fixedly connected to the lower end of the hydraulic telescopic rod 4, two dampers 7 fixedly connected to the lower surface of the mounting plate 5, a high-temperature sealing module 9 fixedly connected to the lower end of the two dampers 7, and two springs 8 fixedly connected to the upper surface of the high-temperature sealing module 9.
[0021] In this embodiment, during use, the semi-finished bag is driven by a conveying device to be transported from one end of the operating table 1 to the other end. During the transport process, the hydraulic telescopic rod 4 periodically pushes the mounting plate 5 downward, causing the two dampers 7 to push the high-temperature sealing module 9 to squeeze the semi-finished bag. Under the action of high temperature, when the edge of the semi-finished bag softens, the two edges will be pressed together to form the bag seal, thus shaping the bag. The two dampers 7 and the two springs 8 compress their stroke when the high-temperature sealing module 9 is under force, absorbing kinetic energy and providing buffering, reducing the excessive pressure applied to the material instantaneously, reducing the risk of the material breaking or deforming due to excessive compression or stretching, improving the yield rate, and reducing production losses. The hydraulic telescopic rod 4 and the high-temperature sealing module 9 are common devices in daily life and are existing technologies. Specific models can be selected according to needs, and will not be described in detail here.
[0022] Example 2
[0023] like Figure 1-4 As shown, the outer surfaces of the two dampers 7 are each connected to an adjusting ring 12 by a thread. One side surface of each of the two adjusting rings 12 is fixedly connected to a double-sided bearing 13. One side surface of the double-sided bearing 13 is fixedly connected to the upper end of the two springs 8. The outer surfaces of the two dampers 7 are embedded inside the two springs 8. The outer surfaces of the two dampers 7 are each provided with a display plane 14. The outer surface of the display plane 14 is provided with a pressure scale 15. The outer surface of the bracket 2 is provided with two transverse limiting grooves 3. The inner surfaces of the two transverse limiting grooves 3 are each provided with transverse limiting sliders 6. The opposite surfaces of the two transverse limiting sliders 6 are fixedly connected to the outer surface of the mounting plate 5. The inner wall surfaces of the two transverse limiting grooves 3 are each provided with two vertical limiting grooves 11. The inner wall surfaces of the four vertical limiting grooves 11 are each provided with vertical limiting sliders 10. One side surface of the four vertical limiting sliders 10 is fixedly connected to the outer surface of the two transverse limiting sliders 6.
[0024] In this embodiment, when different pressures are required, the stroke of the hydraulic telescopic rod 4 remains unchanged. Rotating the two adjusting rings 12 causes the two bidirectional bearings 13 to rotate and compress the two springs 8. Referring to the pressure scale 15 on the display plane 14 and the position of the bidirectional bearings 13, the stroke of the springs 8 is precisely adjusted to obtain the required pressure. This allows for the processing of bags that do not meet the required specifications, making it widely applicable. When the two springs 8 are subjected to lateral force, the damper 7 provides support for the springs 8, preventing them from bending and ensuring their normal operation. When the mounting plate 5 moves, the two lateral limiting sliders 6 slide synchronously inside the two lateral limiting grooves 3, and the four vertical limiting sliders 10 slide inside the four vertical limiting grooves 11, providing lateral and vertical support for the mounting plate 5. This prevents the mounting plate 5 from tilting or rotating when subjected to uneven force, ensuring the accuracy during processing.
[0025] Working principle: such as Figure 1-4As shown, during use, the semi-finished bags are driven from one end of the operating table 1 to the other by a conveyor. During the transfer, the hydraulic telescopic rod 4 periodically pushes the mounting plate 5 downward, causing the two dampers 7 to push the high-temperature sealing module 9 to squeeze the semi-finished bags. Under high temperature, when the edges of the semi-finished bags soften, the two edges are pressed together to form a seal, thus shaping the bag. The two dampers 7 and two springs 8 compress their stroke when the high-temperature sealing module 9 is under force, absorbing kinetic energy and providing cushioning. When different pressures are required, the stroke of the hydraulic telescopic rod 4 remains unchanged. Rotating the two adjusting rings 12 causes the two double-sided bearings 13 to rotate. By rotating and compressing the two springs 8, and referring to the pressure scale 15 and the position of the double-sided bearing 13 on the display plane 14, the stroke of the springs 8 is precisely adjusted to obtain the required pressure, which can process bags that do not require pressure. When the two springs 8 are subjected to lateral force, the damper 7 provides support for the springs 8 to prevent the springs 8 from bending and ensure that the springs 8 work normally. When the mounting plate 5 moves, the two lateral limit sliders 6 slide synchronously inside the two lateral limit slide grooves 3, and the four vertical limit sliders 10 slide inside the four vertical limit slide grooves 11, providing lateral and vertical support force for the mounting plate 5 and preventing the mounting plate 5 from tilting or rotating when the force is uneven.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A bag forming apparatus comprising an operating table (1), characterized in that: A bracket (2) is fixedly connected to the upper surface of the operating table (1). A hydraulic telescopic rod (4) is fixedly connected to one side surface of the bracket (2). A mounting plate (5) is fixedly connected to the lower end of the hydraulic telescopic rod (4). Two dampers (7) are fixedly connected to the lower surface of the mounting plate (5). A high-temperature edge sealing module (9) is fixedly connected to the lower end of the two dampers (7). Two springs (8) are fixedly connected to the upper surface of the high-temperature edge sealing module (9).
2. A bag forming apparatus as claimed in claim 1, wherein: The outer surfaces of the two dampers (7) are connected to adjusting rings (12) by threads. One side surface of each of the two adjusting rings (12) is fixedly connected to a bidirectional bearing (13). One side surface of the bidirectional bearing (13) is fixedly connected to the upper end of the two springs (8).
3. The bag forming device according to claim 2, characterized in that: The outer surfaces of the two dampers (7) are embedded inside the two springs (8).
4. The bag forming device according to claim 3, characterized in that: Both dampers (7) have a display plane (14) on their outer surface, and a pressure scale (15) is provided on the outer surface of the display plane (14).
5. The bag forming device according to claim 1, characterized in that: The bracket (2) has two transverse limiting grooves (3) on its outer surface. Each of the two transverse limiting grooves (3) is fitted with a transverse limiting slider (6). The opposite surfaces of the two transverse limiting sliders (6) are fixedly connected to the outer surface of the mounting plate (5).
6. The bag forming apparatus according to claim 5, characterized in that: Two vertical limiting slides (11) are opened on the inner wall surface of the two horizontal limiting slides (3), and vertical limiting sliders (10) are embedded on the inner wall surface of the four vertical limiting slides (11). One side surface of the four vertical limiting sliders (10) is fixedly connected to the outer surface of the two horizontal limiting sliders (6).