A constant temperature heating type packaging sealing device for saw blade trimming

Abstract

The utility model discloses a sawtooth cutter edge trimming constant temperature heating formula packing sealing equipment, including packing table, be provided with the feeding conveyor belt on the packing table, the feeding conveyor belt one side is provided with the discharge conveyor belt, the discharge conveyor belt is placed with packing bag body, be provided with the edge trimming station between the feeding conveyor belt and the discharge conveyor belt, the edge trimming station fixed mounting is in the packing table, the packing table is fixedly connected with the mounting bracket, the mounting bracket is fixedly installed with the hydraulic cylinder, in the utility model, through before sealing and edge trimming operation, the pressing plate first tight packing bag body is pressed on the edge trimming station, avoid sealing and the edge trimming process of packing bag body and the deviation of taking place, the packing bag body does not move with it when the upper heat seal head and lower heat seal head move after sealing, reduce the production of defective products, guarantee the normal feeding and sealing edge trimming operation of packing bag body later, improve the processing efficiency of packing bag.

Description

Technical Field

[0001] This utility model relates to the field of packaging sealing equipment, specifically to a serrated blade edge-cutting constant temperature heating packaging sealing equipment. Background Technology

[0002] Packaging sealing is a crucial step in ensuring product safety, extending shelf life, and preventing leakage or contamination. It is widely used in industries such as food, pharmaceuticals, daily chemicals, and electronics.

[0003] Heat sealing is a common method of packaging sealing. The essence of heat-sealed packaging is to utilize the physical properties of thermoplastic polymers (such as polyethylene and polypropylene) to achieve a seal. When heated to a viscous state, the molecular chains of the material become more mobile, interpenetrating and entangled under pressure; after cooling, the molecular chains re-solidify, forming a strong adhesive layer. This process requires no adhesives, achieving sealing solely through the melting of the material itself, offering advantages such as high efficiency, environmental friendliness, and low cost. However, in traditional packaging sealing, the melted portion of the plastic bag adheres to the heat sealer during operation. When the heat sealer is lifted, the heat-sealed plastic bag moves along with it, easily resulting in defective products and affecting the normal feeding and heat sealing of subsequent packaging bags, reducing production efficiency. Utility Model Content

[0004] In response to the technical problem that in existing packaging sealing processes, the heat-melted parts of the plastic packaging bag adhere to the heat sealer, and when the heat sealer is lifted, the heat-sealed plastic bag moves with it, easily causing defective products and affecting the normal feeding and heat sealing of subsequent packaging bags, thus reducing production efficiency, this utility model provides a serrated blade edge-cutting constant temperature heating packaging sealing device.

[0005] The technical solution adopted by this utility model is as follows: It includes a packaging platform, on which a feeding conveyor belt is provided, and on one side of the feeding conveyor belt is a discharging conveyor belt. A packaging bag body is placed on the discharging conveyor belt. A trimming platform is provided between the feeding conveyor belt and the discharging conveyor belt. The trimming platform is fixedly installed in the packaging platform. A mounting frame is fixedly connected to the packaging platform, and a hydraulic cylinder is fixedly installed on the mounting frame. An upper moving plate is fixedly connected to the piston rod end of the hydraulic cylinder. Two sets of upper heat sealing heads are fixedly installed under the upper moving plate. A lower moving plate is slidably arranged in the trimming platform. Two sets of lower heat sealing heads are fixedly installed on the lower moving plate, and the two sets of lower heat sealing heads are respectively adapted to the upper heat sealing heads. A driving mechanism is provided in the packaging platform, and a stabilizing mechanism is provided on the upper moving plate.

[0006] Furthermore, the cutting table has a sliding cavity, the lowering plate is slidably connected in the sliding cavity, and the cutting table has two sets of through grooves, both of which are connected to the sliding cavity.

[0007] By adopting the above technical solution, the lower plate is slidably set in the cutting table.

[0008] Furthermore, the drive mechanism includes a rotating shaft rotatably mounted on one side of the mounting bracket, a rotating shaft fixedly mounted on one side of the rotating shaft, and a first toothed plate and a second toothed plate meshing on both sides of the gear. The first toothed plate is fixedly connected to the lower part of the upper moving plate, and the second toothed plate is fixedly connected to the lower moving plate.

[0009] By adopting the above technical solution, the upper heat seal head and the lower heat seal head move relative to each other.

[0010] Furthermore, the stabilizing mechanism includes connecting plates fixedly installed on both sides of the upper moving plate and a pressure plate disposed below the connecting plates. A spring is fixedly connected to the lower part of the connecting plate, and the pressure plate is fixedly installed at the lower end of the spring.

[0011] By adopting the above technical solutions, the stability of the packaging bag body during the heat sealing process can be improved.

[0012] Furthermore, a telescopic rod is fixedly installed between the connecting plate and the upper heat seal head, and the spring is sleeved on the outside of the telescopic rod.

[0013] By adopting the above technical solution, displacement during spring deformation can be avoided.

[0014] Furthermore, a serrated cutter is fixedly installed under the upper moving plate, and a serrated cutter groove is provided on the cutting edge platform, with the serrated cutter being adapted to the serrated cutter groove.

[0015] By adopting the above technical solution, the packaging bag body is serrated.

[0016] The beneficial effects of this utility model are: by using a packaging table in conjunction with a feeding conveyor belt, a discharging conveyor belt, a cutting edge table, a hydraulic cylinder, an upper moving plate, an upper heat sealing head, a first toothed plate, a gear, a lower moving plate, a lower heat sealing head, and a second gear, the upper heat sealing head and the lower heat sealing head move synchronously and cooperate to perform heat sealing operations on the packaging bag body; the upper moving plate, in conjunction with a serrated cutter, a cutting edge table, and a serrated cutter groove, performs serrated cutting on the packaging bag body.

[0017] By using an upper moving plate in conjunction with a connecting plate, spring, telescopic rod, and pressure plate, the pressure plate presses the packaging bag body firmly onto the cutting table before sealing and trimming operations. This prevents the packaging bag body from shifting during sealing and trimming, improving the quality of sealing and trimming. At the same time, when the upper and lower heat sealing heads move after sealing, the packaging bag body will not move with them, reducing the generation of defective products and ensuring the normal feeding, sealing, and trimming operations of the subsequent packaging bag body, thereby improving the processing efficiency of the packaging bag. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the packaging platform in this utility model;

[0020] Figure 3 This is another cross-sectional structural diagram of the packaging platform in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the upper moving plate and the first toothed plate, and the lower moving plate and the second toothed plate in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the upper moving plate in this utility model;

[0023] Figure 6 This is a schematic diagram of the cutting edge stage in this utility model.

[0024] The following are the labels in the diagram: 1. Packaging table; 2. Feeding conveyor belt; 3. Discharge conveyor belt; 4. Packaging bag body; 5. Trimming table; 6. Mounting frame; 7. Hydraulic cylinder; 8. Upper moving plate; 9. Serrated cutter; 10. Serrated cutter groove; 11. Connecting plate; 12. Spring; 13. Pressure plate; 14. Telescopic rod; 15. Upper heat sealing head; 16. Sliding cavity; 17. Through groove; 18. Lower moving plate; 19. Lower heat sealing head; 20. Rotating shaft; 21. Gear; 22. First toothed plate; 23. Second toothed plate. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 The present invention will be further described below.

[0028] To address the problems existing in the background technology, this application proposes the following technical solution: A packaging platform 1 is included, with an infeed conveyor belt 2 on the packaging platform 1. An outfeed conveyor belt 3 is provided on one side of the infeed conveyor belt 2, and a packaging bag body 4 is placed on the outfeed conveyor belt 3. A trimming table 5 is provided between the infeed conveyor belt 2 and the outfeed conveyor belt 3. The trimming table 5 is fixedly installed in the packaging platform 1. A mounting frame 6 is fixedly connected to the packaging platform 1, and a hydraulic cylinder 7 is fixedly installed on the mounting frame 6. An upper moving plate 8 is fixedly connected to the piston rod end of the hydraulic cylinder 7. Two sets of upper heat sealing heads 15 are fixedly installed under the upper moving plate 8. A lower moving plate 18 is slidably arranged in the trimming table 5, and two sets of lower heat sealing heads 19 are fixedly installed on the lower moving plate 18. The two sets of lower heat sealing heads 19 are respectively adapted to the upper heat sealing heads 15. A driving mechanism is provided in the packaging platform 1, and a stabilizing mechanism is provided on the upper moving plate 8.

[0029] The feeding conveyor belt 2 is used to transport the untrimmed packaging bag body 4, and the discharging conveyor belt 3 is used to transport the trimmed packaging bag body 4 (food, daily chemical, etc. packaging bags). The feeding conveyor belt 2 transports the packaging bag body 4 to the trimming table 5, so that part of the packaging bag body 4 rests on the discharging conveyor belt 3. At this time, the discharging conveyor belt 3 and the packaging bag body 4 stop transporting. The hydraulic cylinder 7 works, and its piston rod end drives the upper moving plate 8 to move downward. The upper moving plate 8 drives the two sets of upper heat sealing heads 15 to move downward. Through the drive mechanism, it drives the lower moving plate 18 and the two sets of lower heat sealing heads 19 to move upward, so that the two sets of upper heat sealing heads 15 cooperate with the two sets of lower heat sealing heads 19 to be placed together. The packaging bag body 4, placed on the cutting table 5, is heat-sealed. The stability of the packaging bag body 4 during the heat-sealing process is improved by a stabilizing mechanism, thereby improving the heat-sealing quality. The feeding conveyor belt 2 and the discharging conveyor belt 3 are both existing mature products, and their drive structure and control system are existing technologies, which will not be described in detail in this utility model. Ceramic heating elements are provided in both the upper heat-sealing head 15 and the lower heat-sealing head 19. The ceramic heating elements have efficient and uniform heating performance. The temperature is precisely controlled by an intelligent temperature control system (such as a PLC or a microcontroller). The intelligent temperature control system can automatically adjust the power output of the heating elements according to the temperature feedback of the heat-sealing head to keep the heat-sealing temperature constant.

[0030] Furthermore, the cutting table 5 has a sliding cavity 16, and the lowering plate 18 is slidably connected in the sliding cavity 16. The cutting table 5 has two sets of through grooves 17, and both sets of through grooves 17 are connected to the sliding cavity 16.

[0031] The sliding cavity 16 provides movement space for the lower moving plate 18. When heat sealing the packaging bag body 4, the lower heat sealing head 19 extends out from the through groove 17 and cooperates with the upper heat sealing head 15 to heat seal the packaging bag body 4. The sliding cavity 16 guides and limits the movement of the lower moving plate 18, improving the stability of the lower moving plate 18 during movement. The through groove 17 limits the movement of the lower heat sealing head 19, ensuring a stable fit between the lower heat sealing head 19 and the upper heat sealing head 15.

[0032] To further explain, the drive mechanism includes a rotating shaft 20 rotatably mounted on one side of the mounting bracket 6, a rotating shaft 20 fixedly mounted on one side of the rotating shaft 20, and a first toothed plate 22 and a second toothed plate 23 meshing on both sides of the gear 21. The first toothed plate 22 is fixedly connected to the lower moving plate 8, and the second toothed plate 23 is fixedly connected to the upper moving plate 18.

[0033] When the piston rod of the hydraulic cylinder 7 drives the upper moving plate 8 to move downward, the upper moving plate 8 drives the first toothed plate 22 to move, the first toothed plate 22 drives the gear 21 to rotate, the gear 21 drives the second toothed plate 23 to move, and the second toothed plate 23 drives the lower moving plate 18 to move upward. Thus, during the heat sealing process, the upper heat sealing head 15 and the lower heat sealing head 19 move closer to each other, applying pressure to the packaging bag body 4 located between them, and completing the heat sealing of the packaging bag body 4. The transmission ratio between the first toothed plate 22 and the gear 21 and the transmission ratio between the second toothed plate 23 and the gear 21 are the same, so that the upper heat sealing head 15 and the lower heat sealing head 19 move synchronously. The gear 21 is set on one side of the mounting bracket 6, which facilitates daily maintenance such as lubrication and reduces the wear of the gear 21 and the first toothed plate 22 and the second toothed plate 23. When the wear is serious, it should be replaced in time.

[0034] To further explain, the stabilizing mechanism includes connecting plates 11 fixedly installed on both sides of the upper moving plate 8 and pressure plates 13 disposed below the connecting plates 11. A spring 12 is fixedly connected to the lower part of the connecting plates 11, and the pressure plate 13 is fixedly installed at the lower end of the spring 12.

[0035] The pressure plate 13 is positioned below the upper heat sealing head 15. During the heat sealing of the packaging bag body 4, the upper moving plate 8 drives the pressure plate 13 to move downwards. The pressure plate 13 contacts the telescopic rod 14 before the upper heat sealing head 15, causing the spring 12 to compress and deform. The spring 12 applies reverse pressure to the pressure plate 13, pressing the packaging bag body 4 firmly onto the cutting table 5. Subsequently, the upper heat sealing head 15, in conjunction with the lower heat sealing head 19, heat seals the packaging bag body 4, improving the stability of the packaging bag body 4 during the heat sealing process and preventing the packaging bag body 4 from shifting during the heat sealing process. After the heat seal is applied, the upper heat seal head 15 and the lower heat seal head 19 move away from each other and are removed from the heat-sealed packaging bag body 4. As the upper heat seal head 15 and the lower heat seal head 19 begin to move away from the packaging bag body 4, the compressed spring 12 keeps the pressure plate 13 pressing against the packaging bag body 4. This prevents the upper heat seal head 15 and the lower heat seal head 19 from moving with the heat-sealed packaging bag body 4, reducing the production of defective products, ensuring the normal feeding and heat sealing of the subsequent packaging bag body 4, and improving the sealing production efficiency of the packaging bag body 4.

[0036] Furthermore, a telescopic rod 14 is fixedly installed between the connecting plate 11 and the upper heat seal head 15, and a spring 12 is sleeved on the outside of the telescopic rod 14.

[0037] The telescopic rod 14 guides and limits the deformation of the spring 12, preventing the spring 12 from shifting during deformation and ensuring the normal operation of the stabilizing mechanism.

[0038] Furthermore, a serrated cutter 9 is fixedly installed under the upper moving plate 8, and a serrated cutter groove 10 is provided on the cutting table 5, with the serrated cutter 9 and the serrated cutter groove 10 being compatible.

[0039] During the heat sealing process, the serrated cutter 9 moves downwards simultaneously with the upper moving plate 8 and the upper heat sealing head 15. The serrated cutter 9 and the serrated cutter groove 10 cooperate to cut the packaging bag body 4 placed on the cutting table 5. The cut edge is serrated, which improves the aesthetics of the cut edge and facilitates the opening of the packaging. During the cutting process, the pressure plate 13 also contacts the packaging bag body 4 earlier than the serrated cutter 9 to prevent the packaging bag body 4 from shifting during the cutting operation.

[0040] The feeding conveyor belt 2, discharging conveyor belt 3, hydraulic cylinder 7, saw blade 9, upper heating head 15, lower heating head 19, gear 21, first toothed plate 22, and second toothed plate 23 of the saw-toothed edge-cutting constant-temperature heating packaging and sealing equipment of this utility model are all purchased from the market and are existing technologies. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art. The start and stop relationship between the feeding conveyor belt 2, the discharging conveyor belt 3, and the hydraulic cylinder 7 is controlled by a programmable PLC controller, which is a mature existing technology. The program involved is not described in detail in this utility model.

[0041] For specific operation, please refer to the following: Place the packaging bag body 4 on the feeding conveyor belt 2. The feeding conveyor belt 2 transports the packaging bag body 4 to a preset position. At this time, the packaging bag body 4 is located on the cutting table 5, and part of the packaging bag body 4 is placed on the discharge conveyor belt 3. Then, the discharge conveyor belt 3 and the packaging bag body 4 stop transporting. The hydraulic cylinder 7 operates, and its piston rod end drives the upper moving plate 8 to move downward. The upper moving plate 8 drives the two sets of upper heat sealing heads 15, the serrated cutter 9, the pressure plate 13, and the first toothed plate 21 to move downward. The first toothed plate 22 drives the gear 21 to rotate. The gear 21 drives the second toothed plate 23 to move. The second toothed plate 23 drives the lower moving plate 18 to move upward. The lower moving plate 18 drives the lower heat sealing head 19 to move upward. The pressure plate 13 contacts the packaging bag before the upper heat sealing head 15 and the serrated cutter 9. When the bag body 4 comes into contact with the pressure plate 13 via the spring 12, the bag body 4 is pressed firmly onto the cutting table 5. As the upper moving plate 8 continues to move downward, the upper heat sealing head 15, together with the lower heat sealing head 19, heat seals the bag body 4. The serrated cutter 9, together with the serrated cutter groove 11, cuts the edges of the bag body 4. After the sealing and cutting are completed, the hydraulic cylinder 7 moves the upper moving plate 8 upward. The upper heat sealing head 15 and the lower heat sealing head 19 move away from the bag body 4 for a certain distance, and then the pressure plate 13 moves away from the bag body 4. Subsequently, the feeding conveyor belt 2 and the discharging conveyor belt 3 work. The discharging conveyor belt 3 transports the sealed and cut bag body 4 away, and the feeding conveyor belt 2 transports the bag body 4 to be sealed and cut to the cutting table 5 for further sealing and cutting operations.

[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A serrated blade edge-cutting, constant-temperature heating packaging and sealing device, characterized in that, The system includes a packaging platform (1), on which a feeding conveyor belt (2) is installed. A discharge conveyor belt (3) is installed on one side of the feeding conveyor belt (2). A packaging bag body (4) is placed on the discharge conveyor belt (3). A trimming table (5) is installed between the feeding conveyor belt (2) and the discharge conveyor belt (3). The trimming table (5) is fixedly installed in the packaging platform (1). A mounting frame (6) is fixedly connected to the packaging platform (1). A mounting bracket (6) is fixedly installed on the mounting frame (6). A hydraulic cylinder (7) is fixedly connected to an upper moving plate (8) at the piston rod end of the hydraulic cylinder (7). Two sets of upper heat sealing heads (15) are fixedly installed under the upper moving plate (8). A lower moving plate (18) is slidably arranged in the cutting table (5). Two sets of lower heat sealing heads (19) are fixedly installed on the lower moving plate (18). The two sets of lower heat sealing heads (19) are respectively adapted to the upper heat sealing heads (15). A driving mechanism is provided in the packaging table (1). A stabilizing mechanism is provided on the upper moving plate (8).

2. The serrated blade edge-cutting constant-temperature heating packaging and sealing equipment according to claim 1, characterized in that, The cutting table (5) has a sliding cavity (16) and the lowering plate (18) is slidably connected in the sliding cavity (16). The cutting table (5) has two sets of through grooves (17) and both sets of through grooves (17) are connected to the sliding cavity (16).

3. The serrated blade edge-cutting constant-temperature heating packaging and sealing equipment according to claim 2, characterized in that, The drive mechanism includes a rotating shaft (20) rotatably mounted on one side of the mounting bracket (6), a rotating shaft (20) fixedly mounted on one side of the rotating shaft (20), and a first toothed plate (22) and a second toothed plate (23) meshing on both sides of the gear (21). The first toothed plate (22) is fixedly connected to the lower moving plate (8), and the second toothed plate (23) is fixedly connected to the lower moving plate (18).

4. The serrated blade edge-cutting constant-temperature heating packaging and sealing equipment according to claim 3, characterized in that, The stabilizing mechanism includes a connecting plate (11) fixedly installed on both sides of the upper moving plate (8) and a pressure plate (13) set below the connecting plate (11). A spring (12) is fixedly connected to the lower part of the connecting plate (11), and the pressure plate (13) is fixedly installed at the lower end of the spring (12).

5. A serrated blade edge-cutting constant-temperature heating packaging and sealing device according to claim 4, characterized in that, A telescopic rod (14) is fixedly installed between the connecting plate (11) and the upper heat seal head (15), and the spring (12) is sleeved on the outside of the telescopic rod (14).

6. A serrated blade edge-cutting constant-temperature heating packaging and sealing device according to claim 5, characterized in that, A serrated cutter (9) is fixedly installed under the upper moving plate (8), and a serrated cutter groove (10) is provided on the cutting table (5). The serrated cutter (9) is adapted to the serrated cutter groove (10).

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