Pet food packaging sealing machine with ultraviolet sterilization
Patent Information
- Application Number
- CN202522130280.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0004]然而，在宠物食品包装场景中，直线热封工艺存在显著的技术缺陷
[0006]一种具有紫外线杀菌的宠物食品包装封口机，包括机架，机架上设置有传送带，机架位于传送带的两侧设置支撑板，支撑板上设置有封口机构，两块支撑板之间设置有折角机构；所述折角机构包括竖向滑移连接于支撑板上的安装板，安装板上设置有定位板，定位板位于传送带传输方向的上方，安装板对称的两侧设置有折角组件，折角组件垂直于封口机构设置；所述折角组件包括滑移连接于定位板上的折角柱，定位板位于折角柱的两侧设置有顶边柱，顶边柱用于抵接于包装袋的内侧，折角柱位于包装袋的外侧，定位板上设置有驱动折角柱向内滑动、顶边柱向折边杆收拢的驱动组件，支撑板上设置有驱动定位板竖向滑动至打包袋内的动力组件。折角柱外滑动通过采用上述技术方案，用户使用时，当打包袋滑动至定位板的下方，动力组件驱动定位板向下运动，使折角柱和顶边柱向下运动，折角柱位于包装袋的外侧，顶边柱位于包装袋的内侧，驱动组件驱动折角柱向内滑动，对包装袋的两侧进行折角，之后，封口组件对包装袋进行封口，折角处的材料会形成多层叠加结构当于密封接触面积成倍增加，增大包装袋的密封性，同时，包装袋在使用或运输中会受到拉力、挤压、振动等外力，折角封边通过 “折线支撑” 增强了封边的抗变形能力，进一步减少水汽侵入，提高包装袋的密封性。优选的，所述定位板对应折角柱的位置开设有直形导向槽，定位板对应顶边柱的位置开设有弧形导向槽，折角柱滑移连接于直行导向槽内，驱动组件包括连杆一和连杆二，折角柱的端部穿过直行导向槽与连杆一固定，顶边柱滑移连接于弧形导向槽内并穿过弧形导向槽后与连杆二固定，两根连杆二端部固定铰接有连接杆，连接杆的中部固定连接有导向杆，连杆一内开设有导向槽，导向杆滑移连接于连杆一内，连接杆上连接有驱动连接杆相向运动或相背运动的动力件。通过采用上述技术方案，用户使用时，动力件驱动连接杆向定位板的中部运动，使连杆一拉动折角柱向内运动，连杆二在弧形限位槽内向折角柱的方向收拢，实现折角，直线导向槽给折角柱实现导向和限位的作用，弧形导向槽对顶边柱实现导向和限位的作用，使折角柱何顶边柱运动更稳定。优选的，所述动力件为动力气缸，动力气缸的活塞杆端部铰接有拉杆，拉杆远离动力气缸的端部铰接于连杆一上。通过采用上述技术方案，用户使用时，动力气缸的活塞杆伸出，推到拉杆向侧边滑动，拉动连杆一拉动折角柱向内运动，连杆二在弧形限位槽内向折角柱的方向收拢，实现折角。优选的，所述导向杆的底部固定连接有复位弹簧，复位弹簧远离导向杆的一端固定连接于定位板上。通过采用上述技术方案，用户使用时，当缸的活塞杆伸出，推到拉杆向侧边滑动，拉动连杆一拉动折角柱向内运动，导向杆挤压复位弹簧，复位弹簧的张力便于导向杆复位，进而便于连杆一和连杆二复位。优选的，所述动力组件包括固定连接于安装板上的液压缸，液压缸竖向设置，液压缸的活塞杆竖直向下冰固定连接于定位板上。通过采用上述技术方案，用户使用时，液压缸驱动定位板竖向运动，便于驱动折角柱何顶边柱滑动至于包装袋抵接或分离。优选的，所述封口机构包括固定连接于支撑板侧边的封边气缸，封边气缸水平设置，封边气缸的活塞杆相对设置，封边气缸的活塞杆延伸至支撑板内并固定连接有封边板，封边板上设置有热合板。通过采用上述技术方案，用户使用时，封边气缸的活塞杆伸出，推动封边板抵接于包装袋外，热合板对包装袋热熔后压合在一起，实现封口。优选的，所述机架位于传送带的两侧设置有挡板，挡板之间形成供包装袋穿过的间隙。通过采用上述技术方案，用户使用时，挡板对包装袋起到导向的作用，使包装袋沿传送带准确滑动至折边机构的正下方。优选的，所述挡板相背一侧固定连接有螺杆，机架上固定连接有定位座，定位座上开设有通孔，螺杆穿射于通孔内，且螺杆位于定位座的两侧螺纹连接有螺母。通过采用上述技术方案，用户使用时，拧松螺母，可以调节螺杆的位置，进而调节两块限位板之间的距离，能够对不同尺寸的包装袋进行导向。优选的，所述定位板底部的中间位置设置有紫外线灯。通过采用上述技术方案，用户使用时，紫外线灯用于对包装袋内的宠物食品进行照射，紫外线灯发射的紫外线能破坏微生物的遗传物质，阻止其繁殖甚至直接灭活，实现杀菌的作用。
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Figure CN224797386U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pet food packaging sealing, and in particular to a pet food packaging sealing machine with ultraviolet sterilization function. Background Technology
[0002] With the rapid development of the pet food industry, the requirements for pet food packaging and storage are increasingly stringent. The shelf life and nutritional value of pet food need to be preserved in a sealed environment. As a key piece of equipment in the production and packaging of pet food, the sealing quality of packaging sealing machines plays a crucial role in the sealing performance and storage stability of pet food, which in turn affects the overall quality and market competitiveness of pet food products. The performance of packaging sealing machines directly impacts whether pet food can be stored in a suitable environment, thus influencing consumers' choices and trust in pet food. Against the backdrop of a continuously expanding pet food market, the requirements for packaging sealing machines are also increasing, and their development is of great significance to promoting the healthy development of the pet food industry.
[0003] Current pet food packaging sealing machines generally employ a straight-line heat-sealing process. This process uses heating devices, such as heating strips or heating wheels, to apply high temperatures and pressure to the opening edges of packaging materials, such as composite film bags and aluminum foil bags. This melts the thermoplastic layer at the material edges, presses them together, and upon cooling, forms a straight sealing edge, thus sealing the packaging. Due to its simple structure and convenient operation, this process is widely used in the food packaging industry. Straight-line heat-sealing can be found on large-scale food production lines as well as in small food repackaging areas, making a significant contribution to the development of the food packaging industry.
[0004] However, in the pet food packaging scenario, the straight-line heat sealing process has significant technical shortcomings. Its insufficient sealing performance allows pet food to become damp and clump, affecting taste and palatability, and failing to meet the specific high-sealing requirements of pet food packaging. Existing straight-line heat sealing processes are no longer sufficient to solve the problem of insufficient resistance to moisture intrusion in pet food packaging, necessitating a new sealing technology to improve packaging airtightness. Utility Model Content
[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide a pet food packaging sealing machine with ultraviolet sterilization.
[0006] A pet food packaging sealing machine with ultraviolet sterilization includes a frame, a conveyor belt mounted on the frame, support plates on both sides of the frame and the support plates, and a sealing mechanism on the support plates. A corner-folding mechanism is located between the two support plates. The corner-folding mechanism includes a mounting plate vertically slidably connected to the support plates, a positioning plate on the mounting plate located above the conveyor belt in the transmission direction, and corner-folding components symmetrically arranged on both sides of the mounting plate, perpendicular to the sealing mechanism. Each corner-folding component includes a corner-folding post slidably connected to the positioning plate, top edge posts on both sides of the positioning plate, the top edge posts abutting against the inner side of the packaging bag, and the corner-folding posts located on the outer side of the packaging bag. A driving component on the positioning plate drives the corner-folding posts to slide inward and the top edge posts to retract towards the corner-folding rod. A power component on the support plate drives the positioning plate to slide vertically into the packaging bag. By employing the aforementioned technical solution, when the packaging bag slides below the positioning plate, the power component drives the positioning plate downwards, causing the corner posts and top edge posts to move downwards. The corner posts are located on the outside of the packaging bag, and the top edge posts are located on the inside of the packaging bag. The drive component drives the corner posts to slide inwards, folding the corners of the packaging bag. Afterwards, the sealing component seals the packaging bag. The material at the corners forms a multi-layered structure, which multiplies the sealing contact area, increasing the sealing performance of the packaging bag. At the same time, the packaging bag will be subjected to external forces such as tension, compression, and vibration during use or transportation. The corner sealing edge, through "fold line support," enhances the deformation resistance of the sealing edge, further reducing moisture intrusion and improving the sealing performance of the packaging bag. Preferably, the positioning plate has a straight guide groove corresponding to the position of the corner column and an arc-shaped guide groove corresponding to the position of the top edge column. The corner column is slidably connected in the straight guide groove. The driving assembly includes a first connecting rod and a second connecting rod. The end of the corner column passes through the straight guide groove and is fixed to the first connecting rod. The top edge column is slidably connected in the arc-shaped guide groove and passes through the arc-shaped guide groove before being fixed to the second connecting rod. The ends of the two second connecting rods are fixedly hinged to connecting rods. The middle of the connecting rod is fixedly connected to a guide rod. A guide groove is opened in the first connecting rod. The guide rod is slidably connected in the first connecting rod. A power component that drives the connecting rods to move in opposite directions is connected to the connecting rod. By adopting the above technical solution, when the user uses the device, the power component drives the connecting rod to move towards the center of the positioning plate, causing connecting rod one to pull the angled column inward, and connecting rod two to retract towards the angled column within the arc-shaped limiting groove, thus achieving the angle. The straight guide groove guides and limits the angled column, while the arc-shaped guide groove guides and limits the top edge column, making the movement of the angled column and the top edge column more stable. Preferably, the power component is a power cylinder, and a pull rod is hinged to the end of the piston rod of the power cylinder. The end of the pull rod away from the power cylinder is hinged to connecting rod one. By adopting the above technical solution, when the user uses the device, the piston rod of the power cylinder extends, pushing the pull rod to slide to the side, pulling connecting rod one to move the angled column inward, and connecting rod two to retract towards the angled column within the arc-shaped limiting groove, thus achieving the angle.Preferably, a return spring is fixedly connected to the bottom of the guide rod, and the end of the return spring away from the guide rod is fixedly connected to the positioning plate. By adopting the above technical solution, when the piston rod of the cylinder extends, it pushes the pull rod to slide to the side, pulling the connecting rod one to move the corner column inward. The guide rod compresses the return spring, and the tension of the return spring facilitates the return of the guide rod, thereby facilitating the return of connecting rod one and connecting rod two. Preferably, the power assembly includes a hydraulic cylinder fixedly connected to the mounting plate. The hydraulic cylinder is vertically arranged, and the piston rod of the hydraulic cylinder is vertically downward and fixedly connected to the positioning plate. By adopting the above technical solution, when the user uses the equipment, the hydraulic cylinder drives the positioning plate to move vertically, facilitating the sliding of the corner column and the top edge column to contact or separate from the packaging bag. Preferably, the sealing mechanism includes a sealing cylinder fixedly connected to the side of the support plate. The sealing cylinder is horizontally arranged, and the piston rods of the sealing cylinder are arranged opposite each other. The piston rods of the sealing cylinder extend into the support plate and are fixedly connected to a sealing plate, on which a heat-sealing plate is provided. By adopting the above technical solution, when the user uses the device, the piston rod of the sealing cylinder extends, pushing the sealing plate against the outside of the packaging bag. The heat-sealing plate then heat-melts the packaging bag and presses them together to achieve sealing. Preferably, the frame is equipped with baffles on both sides of the conveyor belt, forming a gap between the baffles for the packaging bag to pass through. By adopting the above technical solution, when the user uses the device, the baffles guide the packaging bag, allowing it to slide accurately along the conveyor belt directly below the folding mechanism. Preferably, a screw is fixedly connected to the opposite side of the baffle, and a positioning seat is fixedly connected to the frame. The positioning seat has a through hole, through which the screw passes, and nuts are threadedly connected to both sides of the positioning seat. By adopting the above technical solution, when the user uses the device, loosening the nuts allows adjustment of the screw's position, thereby adjusting the distance between the two limiting plates, enabling guidance of packaging bags of different sizes. Preferably, an ultraviolet lamp is installed at the center of the bottom of the positioning plate. By adopting the above technical solution, when the user uses the ultraviolet lamp, it is used to irradiate the pet food inside the packaging bag. The ultraviolet rays emitted by the ultraviolet lamp can destroy the genetic material of microorganisms, prevent their reproduction, or even directly inactivate them, thereby achieving the effect of sterilization. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a structural schematic diagram of the support plate, edge sealing mechanism, and corner bending mechanism of this application; Figure 3 This is a structural diagram of the corner component; Figure 4 This is an exploded view of the corner component; Figure 5 This is a structural diagram designed to highlight the ultraviolet lamp.
[0008] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Conveyor belt; 12. Support plate; 13. Baffle; 131. Screw; 14. Positioning seat; 141. Through hole; 2. Sealing mechanism; 21. Edge sealing cylinder; 22. Edge sealing plate; 23. Heat-sealing plate; 3. Corner bending mechanism; 31. Mounting plate; 32. Positioning plate; 321. Straight guide groove; 322. Arc guide groove; 33. Corner bending assembly; 331. Corner bending column; 332. Top edge column; 34. Drive assembly; 341. Connecting rod one; 342. Connecting rod two; 343. Connecting rod; 344. Guide rod; 345. Return spring; 35. Power component; 351. Power cylinder; 36. Power assembly; 361. Hydraulic cylinder; 37. Ultraviolet lamp. Detailed Implementation
[0009] The following will be combined with the appendix Figure 1-5 The technical solutions in the embodiments of this utility model are described in further detail below. The described embodiments are only possible technical implementations of this utility model, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are also within the protection scope of this utility model.
[0010] This application mainly adopts corner heat sealing combined with ultraviolet sterilization to improve sealing and hygiene, thereby enhancing the sealing of pet food packaging bags, reducing moisture intrusion, and sterilizing. The following is a further detailed description of this application.
[0011] This application provides a pet food packaging sealing machine with ultraviolet sterilization, including a frame 1. A conveyor belt 11 for conveying packaging bags is provided on the frame 1. Support plates 12 are provided on both sides of the conveyor belt 11 on the frame 1. Sealing mechanism 2 and corner folding mechanism 3 are installed on the support plates 12. The baffles 13 on both sides of the conveyor belt 11 guide the packaging bags, thereby improving the sealing performance of the packaging bags, reducing moisture intrusion, and sterilizing the pet food inside the packaging bags. This is because the corner folding mechanism 3 stacks multiple layers of material at the corners, increasing the sealing contact area, enhancing the edge sealing resistance to deformation, and reducing moisture intrusion. At the same time, the ultraviolet lamp 37 can sterilize the pet food.
[0012] Specifically, the corner-folding mechanism 3 includes a mounting plate 31 vertically slidably connected to the support plate 12. A positioning plate 32 is mounted on the mounting plate 31, positioned above the conveyor belt 11 in the transmission direction. Corner-folding components 33 are symmetrically arranged on both sides of the mounting plate 31, perpendicular to the sealing mechanism 2. The corner-folding components 33 include corner-folding posts 331 slidably connected to the positioning plate 32 and top edge posts 332 located on both sides of the corner-folding posts 331. The positioning plate 32 has a straight guide groove 321 corresponding to the position of the corner-folding posts 331 and an arc-shaped guide groove 322 corresponding to the position of the top edge posts 332. The corner-folding posts 331 can be made of metal, such as stainless steel, and are long and narrow to better adapt to the corner-folding operation of packaging bags. Alternatively, they can be made of high-strength plastic. The angled post 331 is slidably connected within the straight guide groove 321. The straight guide groove 321 provides guidance and limitation for the sliding of the angled post 331, ensuring the stability of its movement. The top post 332 can also be made of stainless steel, in a columnar shape, with rounded ends to avoid scratching the packaging bag, or it can be made of copper alloy. The top post 332 is slidably connected within the arc-shaped guide groove 322, which guides and limits the movement of the top post 332. The positioning plate 32 is provided with a drive assembly 34 that drives the corner column 331 to slide inward and the top edge column 332 to retract towards the folding rod. The drive assembly 34 includes a first connecting rod 341 and a second connecting rod 342. The end of the corner column 331 passes through the straight guide groove 321 and is fixed to the first connecting rod 341. The top edge column 332 passes through the arc guide groove 322 and is fixed to the second connecting rod 342. The ends of the two second connecting rods 342 are fixedly hinged to a connecting rod 343. A guide rod 344 is fixedly connected to the middle of the connecting rod 343. A guide groove is opened in the first connecting rod 341. The guide rod 344 is slidably connected in the first connecting rod 341. A power component 35 is connected to the connecting rod 343 to drive the connecting rod 343 to move in opposite directions or in opposite directions. The power component 35 can be a power cylinder 351. A pull rod is hinged to the piston rod end of the power cylinder 351, and the end of the pull rod away from the power cylinder 351 is hinged to connecting rod 341. When the piston rod of the power cylinder 351 extends, it pushes the pull rod to slide laterally, thereby pulling connecting rod 341 and causing the angle-folding column 331 to move inward. Simultaneously, connecting rod 342 retracts towards the angle-folding column 331 within the arc-shaped guide groove 322, thus achieving the angle-folding operation of the packaging bag. A return spring 345 is fixedly connected to the bottom of the guide rod 344. The end of the return spring 345 away from the guide rod 344 is fixedly connected to the positioning plate 32. After the angle-folding operation is completed, the tension of the return spring 345 facilitates the return of the guide rod 344, which in turn facilitates the return of connecting rod 341 and connecting rod 342.
[0013] The combination logic of these components of the corner-folding assembly 33 is that the power component 35 drives the connecting rod 343 to move, which in turn drives the connecting rod 341 and the connecting rod 342 to move, thereby causing the corner-folding column 331 and the top edge column 332 to move together to achieve the corner folding of the packaging bag. This combination method makes the corner-folding operation more stable and accurate. The material at the corner forms a multi-layered structure, which multiplies the sealing contact area, enhances the deformation resistance of the sealing edge, and reduces moisture intrusion. Specifically, the support plate 12 is equipped with a power component 36 that drives the positioning plate 32 to slide vertically into the packaging bag. The power component 36 includes a hydraulic cylinder 361 fixedly connected to the mounting plate 31. The hydraulic cylinder 361 is vertically arranged, and the piston rod of the hydraulic cylinder 361 is vertically downward and fixedly connected to the positioning plate 32. The hydraulic cylinder 361 can be a multi-stage hydraulic cylinder 361, which can provide a larger thrust, or a single-stage hydraulic cylinder 361, whose structure is relatively simple. When the packaging bag slides below the positioning plate 32, the hydraulic cylinder 361 drives the positioning plate 32 to move downwards, causing the corner post 331 and the top edge post 332 to enter the appropriate position on the packaging bag, preparing for the subsequent cornering operation. The power unit 36 and the cornering assembly 33 work together to first accurately deliver the positioning plate 32 to the position of the packaging bag, and then perform the cornering operation, ensuring the smooth progress of the entire cornering process.
[0014] Specifically, an ultraviolet lamp 37 is installed at the center of the bottom of the positioning plate 32. The ultraviolet lamp 37 can be a low-pressure mercury lamp, emitting ultraviolet light of a specific wavelength, which has a good sterilization effect; a medium-pressure mercury lamp can also be used. When the positioning plate 32 descends into the packaging bag, the ultraviolet lamp 37 irradiates the pet food inside the bag. The emitted ultraviolet light can destroy the genetic material of microorganisms, preventing their reproduction or even directly inactivating them, thus achieving sterilization. The ultraviolet lamp 37 works in conjunction with the corner-folding and sealing mechanism 2 to improve the hygiene quality of the pet food while ensuring the airtightness of the packaging bag.
[0015] Specifically, the sealing mechanism 2 includes a sealing cylinder 21 fixedly connected to the side of the support plate 12. The sealing cylinder 21 is horizontally positioned, and its piston rod is positioned opposite to the support plate 12. The piston rod extends into the support plate 12 and is fixedly connected to a sealing plate 22, on which a heat-sealing plate 23 is mounted. The sealing cylinder 21 can be a double-acting cylinder, enabling rapid extension and retraction, or a single-acting cylinder. The sealing plate 22 can be made of aluminum alloy, which is lightweight and has a certain strength, or it can be made of steel plate. The heat-sealing plate 23 can be a ceramic heating plate, which heats up quickly and at a uniform temperature, or it can be a resistance wire heating plate. After the folding operation is completed, the piston rod of the sealing cylinder 21 extends, pushing the sealing plate 22 against the outside of the packaging bag. The heat-sealing plate 23 heats and presses the packaging bag together, achieving sealing. The sealing mechanism 2 works in conjunction with the corner folding mechanism 3 to fold the corners first and then seal the bag, so that the multi-layered structure at the corners further enhances the sealing performance of the packaging bag after sealing.
[0016] Specifically, baffles 13 are installed on both sides of the conveyor belt 11 on the frame 1, forming a gap between the baffles 13 for the packaging bag to pass through. The baffles 13 can be made of plastic with a smooth surface to reduce friction on the packaging bag, or they can be made of metal. A screw 131 is fixedly connected to the opposite side of the baffles 13, and a positioning seat 14 is fixedly connected to the frame 1. The positioning seat 14 has a through hole 141, through which the screw 131 passes. Nuts are threadedly connected to the screw 131 on both sides of the positioning seat 14. Loosening the nuts can adjust the position of the screw 131, thereby adjusting the distance between the two baffles 13, which can guide packaging bags of different sizes, allowing the packaging bags to slide accurately along the conveyor belt 11 directly below the folding mechanism. The combination of baffles 13, screws 131, and nuts achieves adaptability to packaging bags of different sizes and improves the versatility of the equipment.
[0017] The implementation principle of this embodiment is as follows: The packaging sealing machine uses a folding mechanism 3 to stack multiple layers of material at the folding corners, increasing the sealing contact area, enhancing the edge sealing resistance to deformation, reducing moisture intrusion, and improving the sealing performance of the packaging bag. Simultaneously, ultraviolet lamps 37 sterilize the pet food inside the packaging bag, improving the hygiene quality of the pet food. Furthermore, the equipment is adaptable to packaging bags of different sizes. By adjusting the spacing of the baffles 13, it can meet the sealing requirements of pet food packaging bags of different specifications. Compared with existing sealing machines using straight-line heat sealing technology, it significantly improves sealing performance and hygiene, solving the problems of insufficient sealing and ineffective sterilization in existing sealing machines, and better meeting the special requirements of pet food packaging for high sealing and hygiene.
[0018] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A pet food packaging sealing machine with ultraviolet sterilization function, comprising a frame (1), a conveyor belt (11) mounted on the frame (1), support plates (12) mounted on both sides of the frame (1) on the conveyor belt (11), and sealing mechanisms (2) mounted on the support plates (12), characterized in that: A bending mechanism (3) is provided between the two support plates (12); The angle-folding mechanism (3) includes a mounting plate (31) vertically slidably connected to the support plate (12), a positioning plate (32) is provided on the mounting plate (31), the positioning plate (32) is located above the conveyor belt (11) in the transmission direction, and angle-folding components (33) are provided on both sides of the mounting plate (31), the angle-folding components (33) are perpendicular to the sealing mechanism (2); the angle-folding component (33) includes an angle-folding column (331) slidably connected to the positioning plate (32), The positioning plate (32) is provided with top edge posts (332) on both sides of the corner post (331). The top edge posts (332) are used to abut against the inside of the packaging bag. The corner post (331) is located on the outside of the packaging bag. The positioning plate (32) is provided with a drive assembly (34) that drives the corner post (331) to slide inward and the top edge post (332) to retract towards the folding rod. The support plate (12) is provided with a power assembly (36) that drives the positioning plate (32) to slide vertically into the packaging bag.
2. The pet food packaging sealing machine with ultraviolet sterilization according to claim 1, characterized in that: The positioning plate (32) has a straight guide groove (321) at the position corresponding to the corner post (331), and an arc-shaped guide groove (322) at the position corresponding to the top edge post (332). The corner post (331) is slidably connected in the straight guide groove. The driving assembly (34) includes a connecting rod one (341) and a connecting rod two (342). The end of the corner post (331) passes through the straight guide groove and is fixed to the connecting rod one (341). The top edge post (332) is slidably connected in the arc-shaped guide groove. After passing through the arc-shaped guide groove (322), the rod is fixed to the second connecting rod (342). The ends of the two connecting rods (342) are fixedly hinged to the connecting rods (343). The middle part of the connecting rod (343) is fixedly connected to the guide rod (344). The first connecting rod (341) has a guide groove. The guide rod (344) is slidably connected to the first connecting rod (341). The connecting rod (343) is connected to a power component (35) that drives the connecting rod (343) to move in opposite directions or in opposite directions.
3. The pet food packaging sealing machine with ultraviolet sterilization according to claim 2, characterized in that: The power component (35) is a power cylinder (351). The piston rod end of the power cylinder (351) is hinged to a tie rod, and the end of the tie rod away from the power cylinder (351) is hinged to a connecting rod (341).
4. A pet food packaging sealing machine with ultraviolet sterilization according to claim 2, characterized in that: A return spring (345) is fixedly connected to the bottom of the guide rod (344), and the end of the return spring (345) away from the guide rod (344) is fixedly connected to the positioning plate (32).
5. A pet food packaging sealing machine with ultraviolet sterilization according to claim 1, characterized in that: The power assembly (36) includes a hydraulic cylinder (361) fixedly connected to the mounting plate (31). The hydraulic cylinder (361) is vertically arranged, and the piston rod of the hydraulic cylinder (361) is fixedly connected to the positioning plate (32) vertically downward.
6. A pet food packaging sealing machine with ultraviolet sterilization according to claim 1, characterized in that: The sealing mechanism (2) includes a sealing cylinder (21) fixedly connected to the side of the support plate (12). The sealing cylinder (21) is horizontally arranged, and the piston rods of the sealing cylinder (21) are arranged opposite to each other. The piston rods of the sealing cylinder (21) extend into the support plate (12) and are fixedly connected to a sealing plate (22). A heat-sealing plate (23) is provided on the sealing plate (22).
7. A pet food packaging sealing machine with ultraviolet sterilization according to claim 1, characterized in that: The frame (1) is provided with baffles (13) on both sides of the conveyor belt (11), and a gap is formed between the baffles (13) for the packaging bag to pass through.
8. A pet food packaging sealing machine with ultraviolet sterilization according to claim 7, characterized in that: A screw (131) is fixedly connected to the opposite side of the baffle (13), and a positioning seat (14) is fixedly connected to the frame (1). A through hole (141) is opened on the positioning seat (14), and the screw (131) passes through the through hole (141). Nuts are threadedly connected to both sides of the positioning seat (14) of the screw (131).
9. A pet food packaging sealing machine with ultraviolet sterilization according to claim 1, characterized in that: An ultraviolet lamp (37) is provided at the middle position of the bottom of the positioning plate (32).