Sealing machine

Abstract

The invention provides a sealing machine which comprises a feeding conveying belt used for conveying a containing box used for containing chicken, a portal frame is arranged at a discharging port of the feeding conveying belt in a sleeving mode, a guiding feeding piece of a sealing film is arranged on the upper surface of a transverse plate of the portal frame, and T-shaped supporting frames are arranged at the left end and the right end of the lower surface of the transverse plate of the portal frame correspondingly; a heat sealing piece is arranged at the front end of each T-shaped supporting frame, a first cutting piece used for cutting a sealing film is arranged in the middle between transverse plates of the T-shaped supporting frames at the left end and the right end, and a second cutting piece is arranged at the rear end between the T-shaped supporting frames at the left end and the right end; the feeding conveying belt is provided with a separation limiting piece used for separating the feeding conveying belt into two feeding channels, and a first supporting plate is arranged on the right side face of the feeding conveying belt. The chicken weighing, boxing and sealing integrated device has the advantage that chicken weighing, boxing and sealing integrated continuous operation can be achieved, so that the production efficiency is remarkably improved, manual intervention is reduced, and the sanitation risk is reduced.

Description

Technical Field

[0001] This application relates to the field of food packaging technology, and more specifically, to a sealing machine. Background Technology

[0002] In the poultry processing and packaging sector, particularly in the retail and distribution of chicken products, packaging quantitatively or by weight chicken into disposable containers (such as plastic boxes or trays) and sealing them with sealing film is a crucial step in ensuring product hygiene, extending shelf life, and facilitating product display and sales. Traditional packaging processes typically consist of multiple separate or semi-automated steps, including manual or mechanical weighing, placing the weighed chicken into containers, covering with sealing film, and subsequent heat sealing and cutting operations. Poor coordination between these steps or insufficient equipment integration can easily lead to low overall packaging efficiency, increased labor costs, and hygiene hazards or inconsistent sealing quality due to human error. While current automated sealing equipment includes basic components such as conveyor belts, film roll feeding mechanisms, heat sealing mechanisms, and cutting mechanisms, its workflow is generally as follows: pre-placed product containers are conveyed to the sealing station via a conveyor belt; sealing film is pulled to cover the container opening; the heat sealing mechanism fuses the film to the edge of the container opening; and finally, the cutting mechanism cuts the sealing film to complete the independent sealing of each package. However, this type of equipment exhibits several shortcomings when applied to products such as chicken that require on-site weighing and packaging. The weighing and boxing processes are often separate from the sealing production line, requiring additional transfers or manual intervention. This prevents the formation of a continuous, integrated workflow from weighing to sealing, severely limiting packaging speed and increasing the risk of errors. For handling different sized containers or multi-channel parallel operations, traditional equipment lacks flexible and effective diversion and positioning guidance mechanisms, easily leading to material congestion, misalignment, or production interruptions. Meanwhile, the precision and reliability of the sealing and cutting processes are insufficient; uneven pressure or temperature distribution during heat sealing may weaken the sealing strength, and if the cutting design only adopts a single action, it is easy to cause uneven edges, adhesion, or incomplete cutting of the sealing film, affecting the appearance and sealing integrity of the finished product. In addition, the spatial layout of the various functional modules of the equipment is often loose or does not meet the requirements of ergonomics, which brings significant inconvenience to daily operation, cleaning and maintenance, and increases downtime and operating costs. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a sealing machine that can achieve the advantages of integrated continuous operation of chicken weighing, boxing and sealing, thereby significantly improving production efficiency, reducing manual intervention and reducing hygiene risks.

[0004] This invention is achieved using the following method: a sealing machine, comprising a feeding conveyor belt for conveying a container for holding chicken meat, a gantry frame fitted at the outlet of the feeding conveyor belt, a guide feeding component for sealing film provided on the upper surface of the horizontal plate of the gantry frame, T-shaped support frames provided at both ends of the lower surface of the horizontal plate of the gantry frame, a heat sealing component provided at the front end of the T-shaped support frame, a first cutting component for cutting the sealing film provided in the middle between the horizontal plates of the T-shaped support frames at both ends, and a second cutting component provided at the rear end between the T-shaped support frames at both ends; the feeding conveyor belt is provided with a separating limiting component for dividing the feeding conveyor belt into two feeding channels, a first support plate is provided on the right side of the feeding conveyor belt, and a weighing feeding component for weighing the chicken meat and conveying it into the container is provided on the upper surface of the first support plate.

[0005] Furthermore, the guiding feeding component includes a fixed plate. The fixed plate is provided at the right end of the upper surface of the horizontal plate of the gantry frame, and the fixed plate is perpendicular to the horizontal plate of the gantry frame. A U-shaped support rod is provided on the upper rear side of the left side of the fixed plate. A feeding roller driven by a first motor is provided in the middle of the left side of the fixed plate. Connecting rods are rotatably hinged to the inner sides of the two vertical plates of the U-shaped support rod, and the connecting rods are driven by a second motor. A first guide roller is provided between the two connecting rods. A fixed block is provided at the front end of the upper surface of the fixed plate. A second guide roller is rotatably provided on the fixed block, and a third motor for driving the second guide roller is provided on the fixed block. A strip-shaped feeding port is opened at the front end of the horizontal plate of the gantry frame. A third guide roller is provided on both the front and rear sides of the front end of the lower surface of the horizontal plate of the gantry frame, and the third guide roller is located at the front and rear ends of the strip-shaped feeding port.

[0006] Furthermore, a plastic film roll is placed on the feeding roller, and the front end of the plastic film roll is guided to the second guide roller via the first guide roller. The second guide roller is higher than the first guide roller, and the film roll is guided to the third guide roller at both ends for film sealing.

[0007] Furthermore, the heat-sealing component includes a heat-sealing roller. A guide rail groove is provided at the front end of the lower surface of the cross plate of the T-shaped support frame. Sliding blocks are provided at both the front and rear ends of the guide rail groove. A lifting rod is hinged to the lower surface of the sliding block. The lifting rods are arranged crosswise. The middle of the lifting rods at the front and rear ends is hinged. A connecting block is hinged to the end of the lifting rod. A support rod is provided on the lower surface of the connecting block. A first support block is provided in the middle of the lower surface of the support rod. A lifting plate is provided between the first support blocks at the left and right ends. A first telescopic cylinder is provided at the front end of the lower surface of the gantry frame. The end of the telescopic rod of the first telescopic cylinder is connected to the middle of the lifting plate.

[0008] Furthermore, the first cutting component includes a first cutting blade, and a second support plate is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. The second support plate has a strip-shaped sliding opening, and a first bolt passes through the strip-shaped sliding opening. A support sleeve is provided at the end of the first bolt, and a telescopic rod is embedded in the support sleeve. The telescopic rod is fixed by a second bolt, and a strip-shaped positioning hole is provided on the telescopic rod. The second bolt passes through the strip-shaped positioning hole. A first blade holder is provided at the end of the telescopic rod, and the first cutting blade is provided on the lower surface of the first blade holder. The support sleeve is perpendicular to the second support plate.

[0009] Furthermore, the second cutting component includes a second cutting blade, and a third support plate is provided at the rear end between the horizontal plates of the T-shaped support frames at the left and right ends. A first strip groove is provided on the lower surface of the third support plate, and a fourth motor is provided in the first strip groove. The output end of the fourth motor is connected to a first screw, and a first moving block is spirally sleeved on the first screw. A second telescopic cylinder is provided on the lower surface of the first moving block, and a second blade holder is provided at the end of the telescopic rod of the second telescopic cylinder. A second cutting blade is provided on the second blade holder, and the first cutting blade and the second cutting blade are arranged perpendicularly.

[0010] Furthermore, the separating and limiting component includes a second support block. The second support block is provided at both the front and rear ends of the upper surface of the left and right support plates of the feeding conveyor belt. A second screw is provided between the second support blocks at both ends. Multiple separating and limiting plates are spirally sleeved on the second screw, and the separating and limiting plates are arranged from left to right, forming a feeding channel between each pair of separating and limiting plates.

[0011] Furthermore, the weighing and feeding component includes a feeding conveyor belt for conveying chicken meat. A second strip-shaped groove is formed on the upper surface of the first support plate. A fifth motor is installed within the second strip-shaped groove. The output end of the fifth motor is connected to a third screw. A second moving block is spirally sleeved on the third screw. A moving plate is provided on the upper surface of the second moving block. Third telescopic cylinders are provided at both the front and rear ends of the upper surface of the moving plate. The feeding conveyor belt is located at the end of the telescopic rod of the third telescopic cylinder. A third strip-shaped groove is formed on both the front and rear surfaces of the feeding conveyor belt. A synchronous motor is installed within the third strip-shaped groove. The output end of the synchronous motor is connected to a fourth screw. A third moving block is spirally sleeved on the rod, and a U-shaped moving frame is provided on the third moving block. The lower surfaces of the two vertical plates of the U-shaped moving frame are provided with a feeding hopper corresponding to the discharge port of the feeding conveyor belt. The outer sides of the two vertical plates of the U-shaped moving frame are provided with L-shaped support plates. The L-shaped support plates are provided with a fourth telescopic cylinder. The telescopic rod of the fourth telescopic cylinder passes through the horizontal plate of the L-shaped support plate. The end of the telescopic rod of the fourth telescopic cylinder is provided with an L-shaped fixing plate. The lower surfaces of the horizontal plate of the L-shaped fixing plate are provided with tension sensors at both ends. The lower surfaces of the tension sensors are connected to an L-shaped weighing plate. The L-shaped weighing plate can realize the opening and closing of the discharge port of the feeding hopper.

[0012] Furthermore, telescopic protective sleeves are provided inside the second and third strip-shaped grooves.

[0013] Furthermore, an L-shaped dust cover is provided on the upper surface of the horizontal plate of the U-shaped movable frame.

[0014] The beneficial effects of this invention are as follows: This invention includes a feeding conveyor belt, a gantry frame, a guiding feeding component, a heat sealing component, a cutting component, a separating and limiting component, and a weighing feeding component. By integrating the weighing feeding component, automatic weighing and conveying of chicken is realized. Combined with the separating and limiting component, a multi-channel feeding is formed. With the help of the guiding feeding component, the heat sealing component, and the cutting component, continuous film covering and sealing operations are completed. This solves the problems of low efficiency, high labor costs, and hygiene hazards of traditional equipment. It has the advantage of realizing integrated continuous operation of chicken weighing, boxing, and sealing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure in the first state of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure in the second state of the present invention.

[0017] Figure 3 This is a top view of the present invention.

[0018] Figure 4 This is a structural diagram of the weighing and feeding component.

[0019] Figure 5 This is a structural diagram of the guide for feeding components.

[0020] Figure 6 This is a structural diagram of the first and second cutting components.

[0021] In the diagram: 1. Feeding conveyor belt; 2. Gantry frame; 3. Guide feeding component; 4. T-shaped support frame; 5. Heat sealing component; 6. First cutting component; 7. Second cutting component; 8. Separating and limiting component; 11. First support plate; 9. Weighing feeding component; 31. Fixed plate; 32. U-shaped support rod; 33. Feeding roller; 34. Connecting rod; 35. First guide roller; 36. Fixed block; 37. Second guide roller; 38. Strip discharge port; 39. Third guide roller; 51. Heat sealing roller; 52. Lifting rod; 53. Connecting block; 54. Support rod; 55. First support block; 56. Lifting plate; 61. First cutting blade; 62. Second support plate; 63. Strip sliding port; 64. First screw... Bolt-64, Support sleeve-65, Telescopic rod-66, Second bolt-67, Strip positioning port-68, First knife holder-69, Second cutting knife-71, Third support plate-72, Second telescopic cylinder-73, Second knife holder-74, Second support block-81, Second screw-82, Separating limit plate-83, Feeding conveyor belt-91, Second strip groove-92, Moving plate-93, Third telescopic cylinder-94, Third strip groove-95, U-shaped moving frame-96, Discharge hopper-97, L-shaped support plate-98, Fourth telescopic cylinder-99, Tension sensor-10, L-shaped weighing plate-101, Telescopic protective sleeve-102, L-shaped dust cover-103. Detailed Implementation

[0022] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In poultry processing and packaging, the separation of the weighing and sealing processes necessitates material transfer, leading to process interruptions and reduced efficiency. Specifically, the equipment lacks adaptability to different sized containers, and the diversion and positioning guidance mechanisms lack flexibility, easily causing material misalignment or congestion. Furthermore, inaccurate pressure and temperature control in the heat-sealing process affects the uniformity of sealing strength; design flaws in the cutting mechanism result in incomplete sealing film edges, compromising the sealing effect. The spatial layout of the equipment's functional modules does not conform to ergonomic principles, increasing the difficulty of operation and maintenance.

[0025] In one specific implementation, when processing multi-sized containers on a chicken retail packaging line, the fixed width of the conveyor belt causes lateral displacement of smaller containers, resulting in inaccurate sealing film coverage. During the heat-sealing process, uneven pressure distribution on the heat-sealing rollers creates weak sealing areas, and residual sealing film adheres after each cut, requiring manual intervention and extending the production cycle. Consequently, packaging speed is limited, product sealing integrity is compromised, and the continuous operation capacity of the production line decreases.

[0026] If the above problems are not resolved, the overall throughput of the packaging line will remain limited, making continuous operation from weighing to sealing impossible. Inconsistent sealing quality will increase the risk of product leakage during distribution, affecting food safety. Increased equipment maintenance complexity leads to more frequent downtime, reducing the reliability of the production line.

[0027] Please see Figures 1 to 6 As shown, this application proposes a sealing machine, including a feeding conveyor belt 1 for conveying a container for holding chicken. A gantry frame 2 is fitted at the outlet of the feeding conveyor belt 1. A guide feeding component 3 for sealing film is provided on the upper surface of the horizontal plate of the gantry frame 2. T-shaped support frames 4 are provided at both ends of the lower surface of the horizontal plate of the gantry frame 2. A heat sealing component 5 is provided at the front end of the T-shaped support frame 4. A first cutting component 6 for cutting the sealing film is provided in the middle between the horizontal plates of the T-shaped support frames 4 at both ends. A second cutting component 7 is provided at the rear end between the T-shaped support frames 4 at both ends. A dividing and limiting component 8 is provided on the feeding conveyor belt 1 for dividing the feeding conveyor belt 1 into two feeding channels. A first support plate 11 is provided on the right side of the feeding conveyor belt 1. A weighing feeding component 9 for weighing the chicken and conveying the chicken into the container is provided on the upper surface of the first support plate 11.

[0028] For ease of understanding, the following explains some key terms in this embodiment: A sealing machine is a device used to seal containers. Its main function is to automatically complete a series of operations, including conveying the containers, filling the materials, covering with sealing film, heat sealing, and cutting, to ensure the hygiene and freshness of the packaged products.

[0029] A feeding conveyor belt is a continuous conveying device used to carry and move containers. In this sealing machine, the feeding conveyor belt is responsible for transporting the containers to be packaged from the inlet to various processing stations, such as the weighing and loading station and the sealing station.

[0030] Chicken containers are used to hold chicken, and are typically disposable plastic trays or boxes. These containers are conveyed on a feeding conveyor belt, and the chicken is filled and sealed with sealing film inside a sealing machine.

[0031] A gantry frame is a support frame with a portal-shaped structure, its crossbar spanning above the discharge port of a feeding conveyor belt. This gantry frame provides stable support for various functional components installed above and below, such as guide feeders and T-shaped support frames.

[0032] The guide feeder is a mechanism used to guide and convey the sealing film. This component typically includes a series of rollers and support structures to ensure that the sealing film is smoothly and accurately drawn from the film roll and placed over the opening of the container.

[0033] The T-shaped support frame is a T-shaped structural component used to support heat-sealing and cutting parts. In this sealing machine, the T-shaped support frame is set on the lower surface of the gantry's cross plate, providing a stable working platform for heat-sealing and cutting operations.

[0034] A heat sealer is a component used to heat-fuse sealing film to the edge of a container. By applying appropriate temperature and pressure, the heat sealer enables the sealing film to adhere firmly to the container, forming a seal.

[0035] The first cutting component is a mechanism used for the initial cutting of the sealing film. This component typically cuts the sealing film covering the container horizontally or vertically after the heat-sealing operation to separate individual packages or remove excess film.

[0036] The second cutter is a mechanism used to perform a secondary cut on the sealing film. This component typically operates after the first cutter and is designed to further refine the edges of the sealing film, ensuring a clean and thorough cut, and completing the final packaging separation.

[0037] Dividing and limiting components are installed on the feeding conveyor belt to divide the working area of ​​the conveyor belt into multiple independent feeding channels. These limiting components can guide the containers to be transported stably within their respective channels, preventing material congestion or misalignment.

[0038] The first support plate is an auxiliary support structure installed on the side of the feeding conveyor belt. This support plate provides an installation foundation and structural support for laterally mounted components such as weighing and feeding parts.

[0039] The weighing and feeding unit is a mechanism that integrates weighing and material conveying functions. This component can accurately weigh chicken meat and automatically convey and fill it into containers on the feeding conveyor belt.

[0040] To achieve automated packaging of containers, this embodiment provides a sealing machine, the main technical features of which are described in detail below: The sealing machine includes a feeding conveyor belt for transporting the containers. In one implementation, the feeding conveyor belt can consist of a series of side-by-side rollers, driven by a motor to rotate and thus move the containers forward. Alternatively, the feeding conveyor belt can be a chain drive, using pallets or clamps on the chain to carry and transport the containers. In another implementation, the feeding conveyor belt can be a flat belt, using friction between the belt and the bottom of the containers for transport. For example, on a production line, containers are manually placed onto a feeding conveyor belt composed of multiple rollers, and the continuous rotation of the rollers transports the containers one by one to the subsequent workstation.

[0041] A gantry frame is fitted at the discharge port of the feeding conveyor belt. The gantry frame can consist of two vertical supports and a horizontally connecting plate, with its overall structure spanning above the feeding conveyor belt. In one implementation, the supports of the gantry frame can be directly fixed to the equipment base, and the plate can be connected to the top of the supports by bolts or welding. In another implementation, the gantry frame can be designed with adjustable height, allowing the height of the plate to be adjusted according to the height of different containers via a lifting mechanism. For example, when it is necessary to change to containers of different heights, the plate of the gantry frame can be raised or lowered using a manual screw or hydraulic cylinder to adapt to the new packaging requirements.

[0042] The upper surface of the horizontal plate of the gantry is equipped with a guide for feeding the sealing film. The guide can consist of a simple film roll support and several fixed guide rods. The film roll is placed on the support, and the sealing film is manually pulled downwards via the guide rods. Alternatively, the guide can include a film roll shaft with a friction brake, where the unwinding speed and tension of the film roll are controlled by adjusting the brake's tension. For example, a film roll is placed on a shaft with friction pads, and the operator manually passes the film head through several guide rings fixed to the horizontal plate of the gantry, then secures the film head above the container.

[0043] The gantry frame has T-shaped support frames at both ends of the lower surface of the cross plate. These T-shaped support frames can be made of bent or welded sheet metal, with their horizontal portions fixed to the lower surface of the cross plate and their vertical portions extending downwards. As one implementation, the T-shaped support frames can be directly bolted to the cross plate. In another implementation, the T-shaped support frames can be designed as detachable or adjustable structures, for example, by using grooves and locking bolts for installation, facilitating maintenance or adjustment of component spacing. For instance, two T-shaped support frames can be bolted to the left and right sides below the cross plate, their downward-extending arms providing support for subsequently installed heat-sealing and cutting components.

[0044] The front end of the T-shaped support frame is equipped with a heat-sealing element. This element can be a simple electric heating plate that is pressed downwards onto the container by a cylinder or spring mechanism to achieve a seal. Alternatively, the heat-sealing element can be a silicone pad with heating wires, the heating temperature of which is adjusted by an external controller and manually pressed by an operator. For example, a rectangular heating plate is installed at the front end of the T-shaped support frame; when the container reaches the designated position, the heating plate is driven downwards by a cylinder, contacting and heating the sealing film at the edge of the container.

[0045] A first cutting element for cutting the sealing film is located in the middle between the horizontal plates of the T-shaped support frames at both ends. The first cutting element can be a blade fixed between the horizontal plates of the T-shaped support frames; as the container passes through, the sealing film is cut open by the blade. Alternatively, the first cutting element can be a rotating blade driven by a motor, which cuts the sealing film through rotational motion. For example, a straight blade is fixed in the center between the two horizontal plates of the T-shaped support frames; after the sealing film is heat-sealed, the container continues to move forward, and the sealing film is cut laterally by this blade.

[0046] A second cutting element is located at the rear end between the T-shaped support frames on the left and right sides. This second cutting element can be a fixed blade similar to the first cutting element, used for supplementary cutting after the first cutting element. Alternatively, the second cutting element can be a manually operated scissor mechanism, used by the operator for finishing after the first cutting. For example, behind the first cutting element, another fixed blade is positioned for a second cut of the sealing film to ensure it is flush with the edge of the container.

[0047] The feeding conveyor belt is equipped with dividing and limiting components to separate the conveyor belt into two feeding channels. The dividing and limiting components can consist of several guide plates fixed to both sides of the feeding conveyor belt, which divide the conveyor belt area into two parallel channels. Alternatively, the dividing and limiting components can be made of removable plastic or metal partitions, fixed to the conveyor belt surface by snaps or slots. For example, two parallel guide plates are installed in the middle of the feeding conveyor belt, dividing it into two independent left and right channels, with the containers being transported in their respective channels.

[0048] A first support plate is provided on the right side of the feeding conveyor belt. The first support plate can be a metal plate perpendicular to the feeding conveyor belt, fixed to the equipment frame by a bracket. Alternatively, the first support plate can be designed as a foldable or telescopic structure to facilitate equipment maintenance or space adjustment. For example, an L-shaped metal plate is fixed to the right side of the feeding conveyor belt, and its upper surface provides a flat mounting area.

[0049] The upper surface of the first support plate is equipped with a weighing and feeding device for weighing and conveying the chicken meat into a holding container. The weighing and feeding device can consist of a simple electronic scale and a manual hopper. After weighing the chicken, the operator manually pours it into the holding container. Alternatively, the weighing and feeding device can include a hopper with a weighing sensor. When the chicken in the hopper reaches a preset weight, a manual valve releases the chicken. For example, a hopper with a weighing function is placed on the first support plate. The operator puts the chicken into the hopper, and once the weight reaches the target, manually pours the chicken into the holding container below.

[0050] The following example will provide a more detailed explanation of the above technical solution: Suppose a poultry processing plant at location A needs to automate the packaging of chicken products of different sizes. The plant has introduced a sealing machine as described in this embodiment to improve packaging efficiency and quality.

[0051] First, the operator places empty containers onto the feeding conveyor belt. This conveyor belt is divided into two independent feeding channels by separating and limiting components, allowing containers of different sizes to be transported in parallel within their respective channels simultaneously, or containers of the same size to be transported in two parallel rows, thereby improving material conveying efficiency. For example, the left channel transports larger containers, and the right channel transports smaller containers.

[0052] As the container moves along the conveyor belt to the first support plate on the right, the weighing and feeding unit located on the upper surface of the first support plate begins operation. The weighing and feeding unit accurately weighs the pre-placed chicken using its internal weighing mechanism. Once the chicken reaches the preset weight, the weighing and feeding unit automatically conveys the weighed chicken and fills it into the corresponding container in the lower channel. For example, the weighing and feeding unit accurately fills 200 grams of chicken into the small container in the right-hand channel.

[0053] The filled container continues to move forward along the feeding conveyor belt, entering the area below the gantry. At this point, the guide feeding components on the upper surface of the gantry's crossbars begin to function. The guide feeding components pull the sealing film from the film roll and smoothly guide it above the container, ready for the laminating operation. The sealing film is precisely positioned above the opening of the container, ensuring the integrity of the subsequent heat sealing.

[0054] The container is then moved to the front of the T-shaped support frame, beneath the heat-sealing element. Supported stably by the T-shaped support frame, the heat-sealing element applies heat and pressure to the sealing film covering the container, firmly fusing the film to the edge of the container to form a seal. This process ensures the hygiene and freshness of the chicken products.

[0055] After heat sealing, the container continues to move forward. First, the first cutter, located in the middle between the T-shaped support plates at both ends, performs a preliminary cut on the sealing film, separating the continuous sealing film between the containers. Next, the container moves to the rear of the container, below the second cutter located between the T-shaped support plates at both ends. The second cutter performs a second cut on the sealing film, further refining the edges to ensure a clean and thorough cut, ultimately separating the individual container from the continuous film strip.

[0056] Through the aforementioned collaborative operation, the sealing machine achieves a continuous automated packaging process from box conveying, chicken weighing and feeding, sealing film guiding, heat sealing to two-stage cutting. The separating and limiting components ensure smooth multi-channel parallel operation, the weighing and feeding components guarantee the accuracy of chicken filling, and the two-stage cutting improves the cutting quality of the sealing film.

[0057] Based on the above examples, the sealing machine provided in this embodiment demonstrates significant advancements in its technical concept.

[0058] Compared to existing packaging solutions with fragmented processes and insufficient automation, this sealing machine integrates the feeding conveyor belt, weighing and feeding unit, guiding and feeding unit, heat sealing unit, and two-stage cutting unit into a unified equipment framework. This achieves continuous, integrated operation from material weighing and filling to final sealing and cutting. For example, in the factory at location A mentioned above, the weighing and boxing of chicken no longer requires manual or semi-automated intervention outside the sealing line. Instead, the weighing and feeding unit completes the process directly next to the feeding conveyor belt, greatly improving the overall packaging speed and efficiency, and effectively reducing labor costs and hygiene risks associated with manual operation.

[0059] Furthermore, addressing the limited adaptability of existing equipment when handling containers of different sizes or performing multi-channel parallel operations, this sealing machine incorporates a separating and limiting component. This component divides the feeding conveyor belt into two feeding channels, allowing the equipment to flexibly adapt to different packaging needs. For example, it can simultaneously handle two different sizes of containers, or increase the conveying capacity of containers of the same size using a double-row configuration. This design effectively avoids material congestion or misalignment, improving the flexibility of the production line.

[0060] Regarding sealing and cutting precision and reliability, this sealing machine achieves two-stage cutting of the sealing film by setting up a first cutting component and a second cutting component. Compared with existing technologies that may only have one cutting, resulting in uneven edges, adhesion, or incomplete cutting, two-stage cutting allows for more precise trimming of the sealing film, ensuring the smoothness of the sealing film edges and the thoroughness of the cut, thereby improving the appearance quality and sealing integrity of the finished packaging. For example, in the example above, after the first cutting component completes the initial separation, the second cutting component refines the edges, ensuring the independence and aesthetics of each package.

[0061] Overall, this sealing machine, through its highly integrated modular design, multi-channel parallel operation capability, and refined two-stage cutting mechanism, effectively solves a series of technical problems in existing technologies, such as low automation, low efficiency, poor adaptability, and poor sealing and cutting quality. It provides an efficient, reliable, and highly adaptable solution for the automated packaging of poultry products.

[0062] In some other embodiments, this application proposes a sealing machine, which includes a feeding conveyor belt for conveying a container for holding chicken meat. A gantry frame is fitted at the outlet of the feeding conveyor belt. A guide for sealing film is provided on the upper surface of the horizontal plate of the gantry frame. T-shaped support frames are provided at both ends of the lower surface of the horizontal plate of the gantry frame. A heat sealing element is provided at the front end of the T-shaped support frame. A first cutting element for cutting the sealing film is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. A second cutting element is provided at the rear end between the T-shaped support frames at both ends. A separating limiting element for dividing the feeding conveyor belt into two feeding channels is provided on the feeding conveyor belt. A first support plate is provided on the right side of the feeding conveyor belt. A weighing element for weighing and conveying the chicken meat into the container is provided on the upper surface of the first support plate. However, in practice, the precise guidance and stable delivery of the sealing film are crucial to ensuring sealing quality. If the guide material is not properly designed, it may cause uneven tension, deviation, or wrinkles in the sealing film, thereby affecting the sealing effect and production efficiency.

[0063] Please continue reading. Figure 1 , Figure 2 and Figure 5 As shown, this application further proposes the above-mentioned sealing machine, wherein the guide feeding component 3 includes a fixed plate 31. The fixed plate 31 is provided at the right end of the upper surface of the horizontal plate of the gantry frame 2, and the fixed plate 31 is perpendicular to the horizontal plate of the gantry frame 2. A U-shaped support rod 32 is provided on the upper side of the rear end of the left side of the fixed plate 31. A feeding roller 33 driven by a first motor is provided in the middle of the left side of the fixed plate 31. Connecting rods 34 are rotatably hinged to the inner sides of the two vertical plates of the U-shaped support rod 32, and the connecting rods 34 are connected by a second motor. The motor-driven configuration includes a first guide roller 35 positioned between the two connecting rods 34, a fixing block 36 positioned at the front end of the upper surface of the fixing plate 31, a second guide roller 37 rotatably mounted on the fixing block 36, and a third motor for driving the second guide roller 37 mounted on the fixing block 36. A strip-shaped discharge port 38 is opened at the front end of the horizontal plate of the gantry frame 2, and third guide rollers 39 are positioned on both the front and rear sides of the front end of the lower surface of the horizontal plate of the gantry frame 2, with the third guide rollers 39 positioned at the front and rear ends of the strip-shaped discharge port 38.

[0064] The fixing plate, as the basic structure for guiding the feeding components, is used to support and fix other components. It can be made of sheet metal (such as stainless steel or aluminum alloy) or high-strength engineering plastics, and is connected to the horizontal plate of the gantry frame by bolts, welding, or riveting. Alternatively, the fixing plate can be integrated with the horizontal plate of the gantry frame in a one-piece molding process to improve overall rigidity and reduce assembly errors. The U-shaped support rod provides a stable support structure for rotating the hinged connecting rod. It can be bent or welded from metal profiles (such as square or round steel), or formed by casting or machining. Holes or bearing seats are usually machined into the inner surfaces of its two vertical plates to allow rotation of the connecting rod. The first motor drives the feeding roller to rotate, thereby controlling the release speed and tension of the sealing film. The first motor can be a stepper motor, servo motor, or DC geared motor, connected to the feeding roller via a transmission mechanism such as gears, belts, or chains. Alternatively, the first motor can be directly integrated into the shaft of the feeding roller, forming an integrated drive unit. The feeding roller is used to support and release the sealing film roll. The feeding roller is typically cylindrical with an anti-slip surface treatment (such as rubber coating or grooves) to ensure stable winding and release of the sealing film. It can be made of metal (such as aluminum or steel) or rigid plastic and supported on a fixed plate by bearings. A connecting rod serves as the support and drive component for the first guide roller, rotating via a second motor. The connecting rod is typically a slender rod-like structure made of metal, with both ends hinged to U-shaped support rods and the middle section used to mount the first guide roller. The second motor drives the connecting rod to rotate, thereby adjusting the position or angle of the first guide roller to achieve initial guidance and tension control of the sealing film. The second motor can be a small stepper motor or servo motor, driving the connecting rod via a worm gear, gear set, or linkage mechanism. The first guide roller provides initial guidance to the sealing film released from the feeding roller. It is typically a smooth cylindrical roller body made of lightweight and wear-resistant materials (such as aluminum alloy or hard rubber) to reduce friction and damage to the sealing film. A fixing block supports and secures the second guide roller and its drive motor. The fixing block is typically a block structure made of metal or high-strength plastic, fixed to the fixing plate by bolts or other means. The second guide roller is used for further precise guidance and tension adjustment of the sealing film. The second guide roller usually has high machining precision and surface finish to ensure smooth passage of the sealing film. It can be made of metal or ceramic materials and rotates via bearings. The third motor drives the second guide roller to rotate, actively pulling the sealing film and ensuring it is conveyed downwards at a constant speed and tension. The third motor can be a servo motor or a stepper motor, connected to the second guide roller via gear or belt drive. The strip discharge port is an opening on the cross plate of the gantry for the sealing film to pass through. This opening is usually rectangular or elongated, its size matching the width of the sealing film, with appropriate clearance to avoid friction.The third guide rollers are positioned at both ends of the strip feed opening to provide final, precise guidance and flattening as the sealing film passes through it. These third guide rollers are typically installed in pairs to grip or guide the sealing film, ensuring its smooth entry into the sealing area. They can be freely rotating rollers or driven rollers to further control the film tension.

[0065] The solution of this application provides a solid mounting base for the entire guide and loading component by setting a fixed plate at the right end of the upper surface of the horizontal plate of the gantry frame. The sealing film roll is placed on a feeding roller driven by a first motor. The first motor can actively or passively release the sealing film by controlling the rotation of the feeding roller, thereby achieving initial control of the sealing film tension. After being released from the feeding roller, the sealing film first passes through a first guide roller set between a connecting rod pivotally connected to the inner sides of the two vertical plates of the U-shaped support rod. The connecting rod is driven by a second motor, which can change the position of the first guide roller by adjusting the angle of the connecting rod, thereby initially adjusting the path of the sealing film and ensuring that the sealing film can smoothly enter the subsequent guiding stage. Subsequently, the sealing film is guided to a second guide roller rotatably mounted on a fixed block at the front end of the upper surface of the fixed plate. This second guide roller is driven by a third motor on the fixed block. The active traction of the third motor can further precisely control the conveying speed and tension of the sealing film, ensuring that the sealing film remains flat and wrinkle-free before entering the sealing area. Finally, a strip-shaped feeding port is provided at the front end of the gantry's horizontal plate, through which the sealing film is conveyed downwards. At both ends of the strip-shaped feeding port, and on both sides of the front end of the lower surface of the gantry's horizontal plate, third guide rollers are installed. These third guide rollers work together to flatten and position the sealing film, ensuring it covers the container in the correct posture and position, preparing it for subsequent heat sealing. Through the coordinated operation of the aforementioned series of guide rollers and drive motors, the guiding feeding component of this application can achieve full control over the sealing film from roll release to precise covering, effectively solving problems such as uneven tension, deviation, and wrinkles that may occur during the conveying process, ensuring a stable and accurate supply of sealing film, thus guaranteeing the efficient and high-quality operation of the sealing machine.

[0066] In one specific implementation, the fixing plate of the guide feeder can be made of 5mm thick 304 stainless steel sheet, and fixedly connected to the horizontal plate of the gantry frame with M8 bolts. The U-shaped support rod can be welded from 20mm×20mm square steel, with bearing mounting holes machined on the inner sides of its two vertical plates. The first motor can be a 60W rated power DC geared motor, connected to the shaft of the unwinding roller via a synchronous pulley to achieve unwinding of the sealing film. The unwinding roller can be an 80mm diameter aluminum alloy roller with an anodized surface. The connecting rod can be made of a 10mm diameter solid steel bar, with both ends hinged to the U-shaped support rod via self-lubricating bearings. The second motor can be a small stepper motor, driving the connecting rod to rotate via a worm gear mechanism to achieve fine adjustment of the first guide roller. The first guide roller can be a 50mm diameter hard rubber roller. The fixing block can be milled from aluminum alloy. The second guide roller can be a 60mm diameter precision steel roller with a chrome-plated surface. The third motor can be a servo motor with a rated power of 100W, which drives the second guide roller through gear transmission to achieve precise traction of the sealing film. The strip-shaped discharge port at the front end of the gantry's cross plate can be machined into a rectangular groove with a width slightly larger than the width of the sealing film by 2mm. The third guide roller can be a free-rotating stainless steel roller with a diameter of 40mm, installed on the support seats at both ends of the discharge port.

[0067] Through the above technical solution, the sealing machine of this application can achieve precise and stable guidance and conveying of the sealing film. The feeding roller driven by the first motor, together with the first guide roller and the connecting rod driven by the second motor, can effectively control the initial tension and path of the sealing film, avoiding the film roll from becoming too loose or too tight during release. The second guide roller driven by the third motor further ensures the flatness and conveying speed of the sealing film before entering the sealing area, effectively preventing the sealing film from deviating or wrinkling. The setting of the strip-shaped feeding port and the third guide rollers at both ends ensures that the sealing film can cover the container in the correct posture and position, significantly improving the utilization rate and sealing quality of the sealing film, reducing the scrap rate caused by film material problems, and thus improving the efficiency and reliability of the entire sealing process.

[0068] In some embodiments described above in this application, a sealing machine is proposed, whose guiding and feeding components include a feeding roller, a first guide roller, a second guide roller, and a third guide roller for guiding the sealing film. However, in actual operation, how to ensure that the sealing film maintains appropriate tension and flatness during the guiding process, avoiding wrinkles or skewing, thereby ensuring the quality and efficiency of subsequent lamination and sealing, is a problem that needs to be solved.

[0069] Please continue reading. Figure 1 , Figure 2 and Figure 5As shown, this application further proposes to place a plastic film roll on the feeding roller 33, with the front end of the plastic film roll being guided by the first guide roller 35 to the second guide roller 37, and the second guide roller 37 being higher than the first guide roller 35, and being guided by the second guide roller 37 to the third guide roller 39 at both ends for film sealing.

[0070] The plastic film roll, typically a cylindrical polymer film, is used for sealing. It is placed on the feed roller for stable unfolding and transport during the sealing process. Besides direct placement, the plastic film roll can also be secured to the feed roller using clips, conical sleeves, or air shafts to ensure concentricity and stability even at high speeds. The first and second guide rollers work together to provide initial and secondary guidance to the plastic film roll unfolding from the feed roller. The first guide roller typically unfolds the film roll and corrects its initial orientation, while the second guide roller further refines the film's path and tension. The guide rollers can be smooth metal rollers to reduce friction; alternatively, they can be rollers with anti-slip textures or rubber coatings to increase grip and prevent slippage. The second guide roller is higher than the first guide roller; this relative height is a key technical feature, creating an upward-sloping path for the plastic film roll as it passes through both rollers. This path effectively generates and maintains tension on the film roll, helping to smooth out wrinkles and ensure the film remains flat during transport. This height difference can be achieved by adjusting the guide roller mounting brackets, using an adjustable-height support mechanism, or via an eccentric shaft. The third guide rollers, located at both ends of the strip feed inlet, further stabilize and accurately guide the plastic film roll, after precise guidance and tension control by the second guide rollers, to the lamination and sealing area. These guide rollers ensure the film roll maintains optimal flatness and alignment upon entering the sealing position, providing a stable film material for efficient and high-quality lamination and sealing operations. The third guide rollers can be supported by free-rotating bearings or driven by an independent micro-motor for more precise film speed control.

[0071] The solution of this application achieves precise guidance and sealing of the sealing film through the following method: First, the plastic film roll is placed on a feeding roller driven by a first motor. As the feeding roller rotates, the plastic film roll is smoothly unfolded. The front end of the unfolded plastic film first passes through a first guide roller for preliminary path correction and unfolding. Subsequently, the film is guided to a second guide roller. During this process, since the height of the second guide roller is set higher than that of the first guide roller, the running path of the plastic film forms an upward tilt angle as it passes through these two guide rollers. This tilted path effectively applies and maintains appropriate tension on the plastic film, thereby significantly reducing the possibility of wrinkles or slack in the film during transportation and ensuring the flatness of the film. After being finely guided and tension-controlled by the second guide roller, the plastic film is accurately guided between the front and rear ends of a third guide roller located at the front end of the cross plate of the gantry, where a strip-shaped discharge port is opened. With the further positioning and stabilizing effect of the third guide roller, the plastic film smoothly and aligned enters the film-sealing area, aligning with the container conveyed on the feeding conveyor belt. This provides a stable, flat, and wrinkle-free sealing film for the subsequent heat-sealing operation, ensuring efficient and high-quality film-sealing. This guiding mechanism, working in conjunction with the feeding conveyor belt, gantry, and heat-sealing components, ensures the smoothness of the entire sealing process and the reliability of the sealing quality.

[0072] The following is a specific example. In one implementation, the plastic film roll placed on the feeding roller can be a multi-layer composite film with good heat-sealing performance and a certain degree of toughness, such as PET / PE composite film. The feeding roller can be driven by a first motor, which is connected to the feeding roller via a synchronous pulley to achieve precise speed control to match the speed of the feeding conveyor belt. The first and second guide rollers can be made of aluminum alloy rollers with precision grinding and hard anodizing treatment to ensure a smooth and wear-resistant surface. The mounting bracket of the second guide roller can be designed with an adjusting screw, allowing its height to be finely adjusted relative to the first guide roller, thereby adjusting the optimal tension according to the different thicknesses and materials of the plastic film rolls. The third guide roller can be a roller body coated with silicone to increase the friction against the plastic film, further ensuring the stability and positioning accuracy of the film when entering the lamination and sealing area.

[0073] Through the above technical solution, the plastic film roll, guided by the guide feeder, effectively applies and maintains appropriate tension on the plastic film through the synergistic action of the first and second guide rollers, particularly the higher height of the second guide roller compared to the first. This significantly reduces the possibility of wrinkles or slack in the film during transport, ensuring film flatness. Subsequently, the film is precisely guided between the third guide rollers, providing a stable, aligned, and wrinkle-free sealing film for subsequent lamination and sealing operations. This not only improves sealing quality and reduces scrap rates but also enhances the efficiency and reliability of the entire sealing process, enabling the sealing machine to stably and efficiently complete the lamination and sealing of containers.

[0074] In some other embodiments, this application proposes a sealing machine with a heat sealing element at the front end of a T-shaped support frame. However, in actual operation, how to ensure that the heat sealing element can accurately heat seal the container and adapt to containers of different heights, while ensuring that the heat sealing pressure is uniform and controllable, is a problem that needs to be solved.

[0075] Please continue reading. Figure 1 , Figure 2 , Figure 5 As shown, this application further proposes that the heat-sealing component 5 includes a heat-sealing roller 51, and a guide rail groove (not shown) is provided at the front end of the lower surface of the cross plate of the T-shaped support frame 4. Sliding blocks (not shown) are provided at both the front and rear ends of the guide rail groove. Lifting rods 52 are hinged to the lower surface of the sliding blocks. The lifting rods 52 are arranged crosswise. The middle of the lifting rods 52 at both ends is hinged. A connecting block 53 is hinged to the end of the lifting rod 52. A support rod 54 is provided on the lower surface of the connecting block 53. A first support block 55 is provided in the middle of the lower surface of the support rod 54. A lifting plate 56 is provided between the first support blocks 55 at the left and right ends. A first telescopic cylinder (not shown) is provided at the front end of the lower surface of the gantry frame 2. The end of the telescopic rod of the first telescopic cylinder is connected to the middle of the lifting plate 56.

[0076] The heat-sealing roller is a component used to heat and press the sealing film. It is typically cylindrical and coated with a high-temperature resistant material. Its function is to heat-fuse the sealing film to the edge of the container through rolling or pressing, forming a seal. Besides electric heating, the heat-sealing roller can also be heated by an internal hot fluid (such as hot oil or steam) or by ultrasonic vibration. The guide groove is a structure created at the front end of the lower surface of the cross plate of the T-shaped support frame to guide and limit the movement of moving components. It is usually a long, narrow groove with a smooth inner surface to reduce friction. The guide groove can be straight, or designed in an arc or irregular shape to accommodate different motion trajectories. Its main function is to provide a precise movement path for the sliding block, ensuring stable movement in a predetermined direction. The sliding block is the component that moves within the guide groove, usually made of wear-resistant material, and cooperates with the guide groove to achieve smooth linear movement. The sliding block can use a ball bearing structure to further reduce friction, or use self-lubricating materials to reduce maintenance. Its function is to act as an intermediary connecting the lifting rod and the guide rail groove, converting the movement of the lifting rod into sliding within the guide rail groove. The lifting rod is a rod-shaped component used to achieve vertical lifting motion. In this design, the lifting rods are arranged in a cross configuration, forming a linkage mechanism. The lifting rod can be made of metal materials (such as stainless steel or aluminum alloy) to ensure sufficient strength and rigidity. Besides hinged connections, the lifting rod can also cooperate with the connecting parts via sliders or rollers to achieve smoother movement. Its function is to convert horizontal force into vertical lifting motion through the linkage mechanism, thereby adjusting the height of the heat-sealing roller. The connecting block is a component connecting the end of the lifting rod to the support rod, typically having multiple connecting holes or surfaces for hinged or fixed connections with other components. The connecting block can be manufactured as a single piece or assembled from multiple components. Its function is to transmit the movement of the lifting rod and transfer force to the support rod. The support rod is a rod-shaped component connecting the connecting block and the first support block, used to support the lifting mechanism of the heat-sealing roller. The support rod needs to have sufficient load-bearing capacity and bending stiffness to ensure the stability of the heat-sealing roller during operation. The support rod can be a solid rod or a hollow tube structure, and the material can be high-strength steel or lightweight alloy. Its function is to serve as the skeleton of the heat-sealing roller lifting mechanism, bearing the weight of the heat-sealing roller and its related components. The first support block is a block-shaped component located in the middle of the lower surface of the support rod, used to connect the lifting plate. The first support block can be connected to the support rod by bolting, welding, or integral molding. Its function is to provide a stable connection point for the lifting plate and transmit the lifting movement of the lifting plate to the entire heat-sealing mechanism. The lifting plate is a flat plate-shaped component used to support the first support block and is driven by the first telescopic cylinder to achieve the overall lifting movement. The lifting plate is usually made of sheet metal and has a certain degree of rigidity. In addition to being driven by a cylinder, the lifting plate can also be lifted by a screw and nut mechanism, a hydraulic cylinder, or a gear and rack mechanism driven by a motor.Its function is to serve as the direct drive component of the heat-sealing roller lifting mechanism, achieving the overall vertical displacement of the heat-sealing roller. The first telescopic cylinder is an actuator that uses compressed air to drive the piston rod to extend and retract, providing linear reciprocating motion. The first telescopic cylinder can be a single-acting or double-acting cylinder, and depending on the control precision and speed requirements, it can be selected with or without cushioning. Besides cylinders, electric push rods, hydraulic cylinders, or stepper motors combined with lead screws can also be used to achieve precise telescopic motion. Its function is to provide power to drive the lifting plate to move up and down, thereby adjusting the height of the heat-sealing roller and applying pressure.

[0077] The solution of this application is achieved in the following way: When the sealing machine is performing heat sealing operations, the container is conveyed to the heat sealing area by a feeding conveyor belt. At this time, a first telescopic cylinder set at the front end of the lower surface of the gantry frame is connected to the middle of the lifting plate through the end of its telescopic rod, driving the lifting plate to move vertically. The lifting of the lifting plate drives the first support block connected to it, which in turn drives the support rod and the connecting block. Since the connecting block is hinged to the end of the lifting rod, and the lifting rod slides in the guide groove at the front end of the lower surface of the T-shaped support frame through a sliding block, and the lifting rods cross and are hinged in the middle, this linkage mechanism design allows the vertical movement of the lifting plate to be accurately converted into the vertical lifting of the heat sealing roller. When the first telescopic cylinder extends, the lifting plate descends, driving the heat sealing roller to descend, contacting and applying pressure to the sealing film on the container; when the first telescopic cylinder retracts, the lifting plate rises, driving the heat sealing roller to rise and detach from the container. During the descent, the heat sealing roller heats the sealing film through its own heating function and presses it against the edge of the container to complete the sealing. This linkage mechanism ensures that the heat sealing roller remains stable during lifting and lowering, and can precisely adjust the distance and pressure between the heat sealing roller and the container as needed, thereby achieving an efficient and uniform sealing effect.

[0078] The following is a specific example: the heat-sealing component can be an electrically heated heat-sealing roller with a Teflon coating to prevent the sealing film from sticking. The guide groove at the front end of the lower surface of the T-shaped support frame can be a U-shaped linear guide rail, with its inner wall precision-machined to ensure smooth movement of the sliding block. The sliding block can be a sliding bearing block with a self-lubricating bushing to reduce friction and wear. The lifting rod can be made of high-strength aluminum alloy and hinged to the connecting block and the sliding block via a pin. The connecting block can be made of cast steel with pre-drilled precise hinge holes. The support rod can be made of stainless steel tubing with a square cross-section to provide good torsional rigidity. The first support block can be bolted to the middle of the lower surface of the support rod and connected to the lifting plate with screws. The lifting plate can be made of 5mm thick aluminum plate with a connecting hole in its center for connection to the telescopic rod of the first telescopic cylinder. The first telescopic cylinder can be a double-acting cylinder with a stroke of 50mm, and its telescopic action is controlled by a solenoid valve, thereby achieving precise lifting and pressure control of the heat sealing roller.

[0079] The above technical solution concretizes the heat-sealing component into a heat-sealing roller and introduces a sophisticated linkage lifting mechanism consisting of guide rails, sliding blocks, intersecting lifting rods, connecting blocks, support rods, a first support block, and a lifting plate, driven by a first telescopic cylinder. This structural design makes the lifting motion of the heat-sealing roller more stable and precise, effectively overcoming problems such as uneven pressure and inaccurate positioning that may occur during the heat-sealing process in traditional fixed or simple lifting mechanisms. The introduction of the first telescopic cylinder allows for precise and rapid adjustment of the lifting height and applied pressure of the heat-sealing roller, thus adapting to containers of different heights and ensuring the quality and consistency of each heat seal. Furthermore, the ingenious design of the linkage mechanism efficiently converts the linear thrust of the cylinder into the vertical lifting of the heat-sealing roller, improving the transmission efficiency and response speed of the mechanism, and significantly enhancing the automation level and sealing quality of the sealing machine.

[0080] In some embodiments of this application, the sealing machine is equipped with a first cutting element for cutting the sealing film. However, in actual operation, since the width, material, or cutting requirements of the sealing film may vary, if the position or cutting depth of the first cutting element cannot be flexibly adjusted, the cutting effect may be poor, such as incomplete cutting, cutting position deviation, or unnecessary damage to the sealing film, thereby affecting the sealing quality and production efficiency.

[0081] Please continue reading. Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, this application further proposes that the first cutting component 6 includes a first cutting blade 61. A second support plate 62 is provided in the middle between the horizontal plates of the T-shaped support frames 4 at both ends, and a strip-shaped sliding opening 63 is provided on the second support plate 62. A first bolt 64 passes through the strip-shaped sliding opening 63, and a support sleeve 65 is provided at the end of the first bolt 64. A telescopic rod 66 is embedded in the support sleeve 65, and the telescopic rod 66 is fixedly installed by a second bolt 67. A strip-shaped positioning opening 68 is provided on the telescopic rod 66, and the second bolt 67 passes through the strip-shaped positioning opening 68. A first blade holder 69 is provided at the end of the telescopic rod 66, and the first cutting blade 61 is provided on the lower surface of the first blade holder 69. The support sleeve 65 is perpendicular to the second support plate 62.

[0082] The first cutting component is used to cut the sealing film, and its core functional part is the first cutting blade. The first cutting blade can take various forms, such as a sharp metal blade, a toothed blade, or a laser cutting head, to adapt to the cutting needs of sealing films of different materials and thicknesses. The second support plate is a structural component used to install and support the first cutting component. It is usually installed in the middle between the horizontal plates of the T-shaped support frame at both ends through welding, bolting, or other fixing methods to ensure its stability during the cutting process. The strip-shaped slot is a long, narrow hole opened in the second support plate, allowing the component mounted on it to move linearly within a certain range. Its length and width are designed according to the required adjustment range and precision. The first bolt is a fastener that passes through the strip-shaped slot, used to fix the support sleeve to the second support plate and allow the support sleeve to be adjusted in position along the strip-shaped slot. The first bolt can be a standard bolt, a T-bolt, or a bolt with a washer. The support sleeve is the intermediate component connecting the first bolt and the telescopic rod. It is hollow inside, accommodating the telescopic rod, providing stable support and guidance, and serving as the carrier for the movement of the first cutting element as a whole on the strip-shaped sliding edge. The telescopic rod is a retractable component embedded within the support sleeve, allowing the first cutting blade to be adjusted vertically, thereby controlling the cutting depth. The telescopic rod can employ a multi-section sleeve structure, a hydraulically or pneumatically driven piston rod structure, or achieve telescopic movement via threaded transmission. The second bolt is the fastener used to secure the telescopic rod. It passes through the strip-shaped positioning hole on the telescopic rod and mates with the threaded hole on the support sleeve or the telescopic rod, thereby locking the telescopic rod in a specific telescopic position. The second bolt can be an internal hex bolt, a wing bolt, or a fastening bolt with a handle, etc. The strip-shaped positioning hole is an elongated hole in the telescopic rod, allowing the second bolt to slide within a certain range, thus achieving the telescopic rod's telescopic adjustment. The first blade holder is the structural component for mounting the first cutting blade, typically fixed to the end of the telescopic rod, providing a stable platform for mounting and securing the first cutting blade. The first cutter holder can be designed as a clamping type, bolt-fixed type, or quick-change type. The vertical setting of the support sleeve and the second support plate ensures that the cutting direction of the first cutter remains perpendicular to the plane of the sealing film when adjusting the cutting depth, thereby ensuring the stability and accuracy of the cutting.

[0083] The solution of this application achieves precise position adjustment and cutting depth control of the first cutting component through an ingenious structural design. Specifically, the core component of the first cutting component, the first cutting blade, is mounted on the lower surface of the first blade holder, which is fixed to the end of the telescopic rod. The telescopic rod is embedded in a support sleeve, which is installed by a first bolt passing through a strip-shaped slot on a second support plate. The second support plate itself is stably positioned in the middle between the horizontal plates of the T-shaped support frames at both ends. When it is necessary to adjust the lateral position of the first cutting component, the first bolt can be loosened to allow the support sleeve, along with the telescopic rod and the first blade holder inside, to slide within the strip-shaped slot on the second support plate. After adjusting to the desired position, the first bolt is tightened to secure it. This design allows the first cutting component to be flexibly positioned laterally according to the width of the sealing film or the requirements of the cutting area. Simultaneously, to achieve adjustment of the cutting depth, a strip-shaped positioning slot is provided on the telescopic rod, through which a second bolt passes and secures the telescopic rod. By loosening the second bolt, the telescopic rod can extend and retract within the support sleeve, thereby changing the vertical height of the first blade holder and the first cutting blade, and thus adjusting the cutting depth of the first cutting blade. After adjustment, tightening the second bolt again locks the position of the telescopic rod. The vertical arrangement of the support sleeve and the second support plate ensures that the cutting direction of the first cutting blade remains perpendicular to the sealing film during depth adjustment, thus guaranteeing cutting stability and accuracy. This combination of lateral positioning and vertical depth adjustment allows the first cutting component to adapt to sealing films of different specifications and cutting requirements, effectively solving the problems of fixed position and inconvenient adjustment in traditional cutting devices, and significantly improving the adaptability and cutting quality of the sealing machine.

[0084] The following is a specific example. In one implementation, the second support plate can be made of 5mm thick 304 stainless steel, with a 10mm wide and 150mm long strip cut into it using laser cutting. The first bolt can be an M8 T-bolt, its head engaging with the strip cut, and the bolt passing through the mounting hole of the support sleeve. The support sleeve can be made of aluminum alloy, with precision-machined guide grooves inside to ensure smooth extension and retraction of the telescopic rod. The telescopic rod can adopt a two-section sleeve structure, achieving initial positioning through an internal spring or friction, and final locking with the second bolt. The second bolt can be an M6 wing bolt with a handle, allowing for easy manual adjustment by the operator. A 30mm long strip positioning opening is provided on the telescopic rod, allowing the cutting depth of the first cutting blade to be adjusted within a 30mm range. The first blade holder can be integrally molded from high-strength engineering plastic, with a clamping groove designed on its lower surface for quick installation and replacement of standard-sized trapezoidal blades as the first cutting blade.

[0085] Through the above technical solution, the first cutting component of the sealing machine possesses flexible lateral position adjustment capabilities and precise cutting depth control. Specifically, through the strip-shaped sliding opening on the second support plate and the first bolt, the first cutting component can be precisely positioned and adjusted horizontally according to the actual width of the sealing film or the cutting area requirements, avoiding an increase in scrap rate due to inaccurate cutting position. Simultaneously, through the cooperation of the support sleeve, telescopic rod, strip-shaped positioning opening, and second bolt, the cutting depth of the first cutting blade can be finely adjusted, ensuring that the sealing film is completely cut without damaging the container, thereby improving cutting efficiency and quality. This adjustable design significantly enhances the sealing machine's adaptability to sealing films of different specifications, reduces the difficulty and time of debugging during production, and thus improves overall production efficiency and product qualification rate.

[0086] In some embodiments described above in this application, the sealing machine cuts the sealing film using a first cutting element. However, in actual production, different types or positions of cutting operations may be required on the sealing film. For example, after the main cut is completed, fine trimming or secondary separation may be necessary to adapt to different packaging needs or improve cutting accuracy. A single cutting method may not be able to meet diverse production requirements.

[0087] Please continue reading. Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, this application further proposes a second cutting component 7 including a second cutting blade 71. A third support plate 72 is provided at the rear end between the horizontal plates of the T-shaped support frame 4 at both ends. A first strip groove (not shown) is provided on the lower surface of the third support plate 72. A fourth motor is provided in the first strip groove. The output end of the fourth motor is connected to a first screw. A first moving block is spirally sleeved on the first screw. A second telescopic cylinder 73 is provided on the lower surface of the first moving block. A second blade holder 74 is provided at the end of the telescopic rod of the second telescopic cylinder 73. The second cutting blade 71 is provided on the second blade holder 74, and the first cutting blade 61 and the second cutting blade 71 are arranged perpendicularly.

[0088] The second cutting component is used for secondary cutting or trimming of the sealing film. Its function is to provide additional cutting capabilities to meet different cutting needs, such as edge trimming, segmented cutting, or cutting to specific shapes. The second cutting component can be an independent cutting unit or an auxiliary cutting unit working in conjunction with the first cutting component. The second cutting blade is the core component of the second cutting component, acting directly on the sealing film to achieve cutting. Its function is to cut or slit the sealing film according to a preset cutting path or shape. The second cutting blade can be in the form of a blade, a rotary cutter, or a laser cutting head. The third support plate provides an installation and support platform for the second cutting component. Its function is to fix the drive and execution mechanism of the second cutting component, ensuring the stability and accuracy of the cutting process. The third support plate can be made of metal plate or composite material plate and fixed between the cross plates of the T-shaped support frame by bolts or welding. The fourth motor is the power source that drives the first screw to rotate. Its function is to provide precise rotational power, thereby driving the first moving block to move linearly along the first screw, realizing the positioning or reciprocating motion of the second cutting blade. The fourth motor can be a stepper motor, servo motor, or DC motor. The first screw is a mechanical transmission component that converts the rotational motion of the fourth motor into the linear motion of the first moving block. Its function is to achieve precise position adjustment or reciprocating cutting stroke of the second cutting blade. The first screw can be a trapezoidal screw or a ball screw. The first moving block is a component that moves along the first screw and carries the second telescopic cylinder. Its function is to act as a moving carrier for the second cutting blade, realizing its positioning or reciprocating motion in the horizontal direction. The first moving block can be a slider with a threaded hole, cooperating with the first screw, or moving with the assistance of a guide rail. The second telescopic cylinder is an actuator that drives the second blade holder to perform vertical telescopic motion. Its function is to control the raising and lowering of the second cutting blade, enabling it to contact or leave the sealing film to complete the cutting action. The second telescopic cylinder can be a single-acting cylinder, a double-acting cylinder, or an electric push rod. The second blade holder is a structure used to fix the second cutting blade. Its function is to firmly clamp the second cutting blade and connect it to the end of the telescopic rod of the second telescopic cylinder, ensuring the stability and accuracy of the cutting blade during the cutting process. The second cutter holder can be a metal clamp or cutter head, which secures the second cutting blade with bolts or other fasteners. The first and second cutting blades are arranged perpendicularly, which describes the relative spatial relationship between the two cutting blades. This allows the two cutting blades to perform cutting tasks in different directions or of different types. For example, the first cutting blade can perform transverse cutting, while the second cutting blade can perform longitudinal cutting or cutting at a specific angle, thus achieving more flexible and diverse cutting functions.

[0089] The solution of this application forms an independent second cutting component by setting a third support plate at the rear end between the horizontal plates of the T-shaped support frame at both ends, and configuring a fourth motor, a first screw, a first moving block, a second telescopic cylinder, and a second blade holder on its lower surface. The fourth motor drives the first screw to rotate, converting the rotational motion into the linear movement of the first moving block, enabling the second cutting blade to be precisely positioned in the horizontal direction. Simultaneously, the second telescopic cylinder controls the vertical lifting and lowering of the second blade holder and the second cutting blade to achieve the cutting action. In this way, the second cutting blade can operate independently of the first cutting blade, performing different cutting tasks. Furthermore, the first and second cutting blades are set perpendicular to each other, meaning that when the first cutting blade performs, for example, a transverse cut, the second cutting blade can perform a longitudinal cut or an edge trimming cut. This structure enables the sealing machine to perform multi-directional and multi-functional cutting of the sealing film. For example, after completing the initial transverse sealing cut, the second cutting component can longitudinally separate the sealing film or finely trim the edges to adapt to packaging needs of different sizes or shapes. This dual and directional cutting mechanism significantly enhances the flexibility and precision of the sealing machine when handling diverse packaging tasks.

[0090] The following is a concrete example: the fourth motor can be a stepper motor, whose rotation angle is controlled by precise pulse signals, thereby driving the first screw to rotate. The first screw can be a ball screw, cooperating with the ball nut inside the first moving block to achieve low-friction, high-precision linear motion. The first moving block can be an aluminum alloy block with a linear guide slider to ensure its stable movement on the third support plate. The second telescopic cylinder can be a small double-acting cylinder, whose air intake and exhaust are controlled by a solenoid valve to achieve rapid lifting and lowering of the second cutter holder. The second cutter holder can be a U-shaped metal clamp, which uses screws to fix a replaceable second cutting blade. The second cutting blade can be a sharp shearing blade or a toothed blade for achieving special cutting effects such as easy tearing. The first and second cutting blades are arranged perpendicularly; for example, the first cutting blade cuts along the width direction (lateral) of the feeding conveyor belt, while the second cutting blade cuts along the length direction (longitudinal) of the feeding conveyor belt.

[0091] By employing the aforementioned technical solution, and by setting an independent second cutting component with its second cutting blade perpendicular to the first cutting blade, this application enables multi-directional and multi-functional cutting operations on sealing film. For example, after the first cutting component completes the initial cut, the second cutting component can perform longitudinal separation, edge trimming, or create easy-tear openings on the sealing film, greatly improving the sealing machine's adaptability to different packaging forms and cutting requirements. Furthermore, the coordination of the fourth motor, the first screw, and the second telescopic cylinder makes the positioning and cutting action of the second cutting blade more precise and controllable, thereby improving cutting quality and production efficiency, and effectively solving the problem that a single cutting method cannot meet diverse production needs.

[0092] In some other embodiments, this application discloses a sealing machine, including a feeding conveyor belt for conveying a container for holding chicken meat. A gantry frame is fitted at the outlet of the feeding conveyor belt. A guide for sealing film is provided on the upper surface of the horizontal plate of the gantry frame. T-shaped support frames are provided at both ends of the lower surface of the horizontal plate of the gantry frame. A heat sealing element is provided at the front end of the T-shaped support frame. A first cutting element for cutting the sealing film is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. A second cutting element is provided at the rear end between the T-shaped support frames at both ends. A separating limiting element for dividing the feeding conveyor belt into two feeding channels is provided on the feeding conveyor belt. A first support plate is provided on the right side of the feeding conveyor belt. A weighing element for weighing and conveying the chicken meat into the container is provided on the upper surface of the first support plate.

[0093] In some embodiments of this application, the sealing machine conveys the container via a feeding conveyor belt and is equipped with a separating limiting component to form a feeding channel. However, in actual production, the size of the container may vary, or the number and width of the feeding channel may need to be adjusted according to production needs. If the structure of the separating limiting component is fixed or inconvenient to adjust, it is difficult to adapt to different specifications of container or flexibly adjust the production line, thereby affecting the versatility and production efficiency of the equipment.

[0094] Please continue reading. Figures 1 to 3 As shown, this application further proposes that the separating limiting member 8 includes a second support block 81. The second support block 81 is provided at both the front and rear ends of the upper surface of the left and right support plates of the feeding conveyor belt 1. A second screw 82 is provided between the second support blocks 81 at both ends. A plurality of separating limiting plates 83 are spirally sleeved on the second screw 82, and the separating limiting plates 83 are arranged from left to right, forming a feeding channel between each pair of separating limiting plates 83.

[0095] The dividing and limiting component is used to create independent channels on the feeding conveyor belt. Its function is to guide the containers to move along a preset path, preventing them from deviating or colliding with each other during conveying, and ensuring the stability and accuracy of feeding. It can be a fixed structure or an adjustable structure. The second support block is the structural foundation of the dividing and limiting component, used to fix and support other components. They usually have sufficient strength and stability to withstand the load of the dividing and limiting plate and the second screw, and ensure the stability of the entire dividing and limiting structure. The second support block can be fixed to the support plate of the feeding conveyor belt by welding, bolting, or integral molding. The second screw is the key component for adjusting the position of the dividing and limiting plate. By rotating the screw, the dividing and limiting plate, which is helically sleeved on it, can be driven to move along the screw axis, thereby changing the width of the feeding channel. The second screw can be made of metal materials, such as stainless steel or alloy steel, to ensure its strength and wear resistance. The dividing and limiting plate is the component that directly contacts the containers and forms the channel wall. They usually have a smooth surface to reduce friction and damage to the containers. By adjusting the distance between the dividing and limiting plates, the width of the feeding channel can be precisely controlled to accommodate containers of different sizes. The dividing and limiting plates can be made of polymer materials, metals, or composite materials, such as polyethylene, polyoxymethylene, or stainless steel. The feeding channel is the path formed by the dividing and limiting plates, used to guide the containers forward. By forming multiple feeding channels, multiple parallel conveying can be achieved, improving production efficiency. The width and number of feeding channels can be flexibly configured according to actual production needs.

[0096] This application's solution solves the problem of inconvenient fixing or adjustment of the feeding channel by introducing adjustable dividing and limiting components. Specifically, second support blocks are provided at both the front and rear ends of the upper surface of the left and right support plates of the feeding conveyor belt. These second support blocks provide a stable base for the entire dividing and limiting structure. Second screws are laterally arranged between the second support blocks at both ends. These second screws, as the core of the adjustment mechanism, have multiple dividing and limiting plates spirally mounted on them. When it is necessary to adjust the width or number of feeding channels, the dividing and limiting plates spirally mounted on them can be moved laterally along the screw axis by rotating the second screws. Because multiple dividing and limiting plates are provided and arranged sequentially from left to right, the distance between adjacent dividing and limiting plates can be finely adjusted by precisely controlling the rotation of each second screw, thereby forming a feeding channel with variable width. This structure allows the feeding conveyor belt to flexibly configure the feeding channels according to different sized containers, or adjust the number of channels according to production needs, greatly improving the adaptability of the sealing machine to different product specifications and the flexibility of the production line. In this way, the sealing machine is no longer limited to a fixed feeding channel layout, and can efficiently handle various sizes of containers, thereby improving the equipment's versatility and production efficiency.

[0097] The following is a concrete example illustrating how the separating and limiting components can be implemented: Second support blocks are fixedly installed on the upper surface of the left and right support plates of the feeding conveyor belt, near the front and rear ends, respectively. These second support blocks can be L-shaped and connected to the support plates of the feeding conveyor belt by bolts. Between the second support blocks on both sides, parallel to the conveying direction of the feeding conveyor belt, two second screws are installed. One end of each second screw can be connected to a handwheel or a small drive motor for manual or automatic adjustment. Multiple separating and limiting plates are spirally fitted onto each second screw. The bottom of these separating and limiting plates has threaded holes that match the threads of the second screws, or they are connected to the screws via nuts. The sides of the separating and limiting plates can be designed with a smooth arc to reduce obstruction to the containers. When it is necessary to adjust the feeding channels, for example, to change two wider channels into three narrower channels, the separating and limiting plates can be moved laterally along the screws by rotating the second screws until the required number and width of feeding channels are formed. For example, four dividing limit plates can be set up, and by adjusting their positions, three feeding channels can be formed, or they can be adjusted to two wider feeding channels.

[0098] Through the above technical solution, the sealing machine can achieve flexible configuration and precise adjustment of the feeding channel. Because the separating and limiting components adopt an adjustable second screw and separating and limiting plate structure, the feeding conveyor belt can quickly and easily adjust the number and width of the feeding channels according to different sized containers or different production needs. This significantly improves the versatility and adaptability of the sealing machine, avoiding the hassle of replacing or modifying equipment due to changes in product specifications, thereby effectively improving production efficiency and equipment utilization.

[0099] In some other embodiments, this application proposes a sealing machine, which includes a feeding conveyor belt for conveying a container for holding chicken meat. A gantry frame is fitted at the outlet of the feeding conveyor belt. A guide for sealing film is provided on the upper surface of the horizontal plate of the gantry frame. T-shaped support frames are provided at both ends of the lower surface of the horizontal plate of the gantry frame. A heat sealing element is provided at the front end of the T-shaped support frame. A first cutting element for cutting the sealing film is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. A second cutting element is provided at the rear end between the T-shaped support frames at both ends. A separating limiting element for dividing the feeding conveyor belt into two feeding channels is provided on the feeding conveyor belt. A first support plate is provided on the right side of the feeding conveyor belt. A weighing element for weighing and conveying the chicken meat into the container is provided on the upper surface of the first support plate.

[0100] In some embodiments described above in this application, the sealing machine is equipped with a weighing and feeding component for weighing the chicken and conveying it into a container. However, in actual operation, the weight of the chicken may be uneven, and it is necessary to precisely control the amount fed each time to ensure product quality and packaging consistency. For automated production lines, this requires a mechanism that can accurately weigh and flexibly adjust the feeding position.

[0101] Please continue reading. Figures 1 to 4 As shown, this application further proposes a weighing and feeding component 9 including a feeding conveyor belt 91 for conveying chicken meat. A second strip-shaped groove 92 is formed on the upper surface of the first support plate 11. A fifth motor (not shown) is installed within the second strip-shaped groove 92. The output end of the fifth motor is connected to a third screw. A second moving block is spirally sleeved on the third screw. A moving plate 93 is provided on the upper surface of the second moving block. Third telescopic cylinders 94 are provided at both the front and rear ends of the upper surface of the moving plate 93. The feeding conveyor belt 91 is installed at the end of the telescopic rod of the third telescopic cylinder 94. A third strip-shaped groove 95 is formed on both the front and rear surfaces of the feeding conveyor belt 91. A synchronous motor (not shown) is installed within the third strip-shaped groove 95. The output end of the synchronous motor is connected to a fourth screw (not shown). A third moving block is spirally sleeved on the fourth screw. A U-shaped moving frame 96 is provided on the third moving block. A feeding hopper 97 corresponding to the discharge port of the feeding conveyor belt 91 is provided on the lower surface of the two vertical plates of the U-shaped moving frame 96. An L-shaped support plate 98 is provided on the outer side of the two vertical plates of the U-shaped moving frame 96. A fourth telescopic cylinder 99 is provided on the L-shaped support plate 98. The telescopic rod of the fourth telescopic cylinder 99 passes through the horizontal plate of the L-shaped support plate 98. An L-shaped fixing plate 90 is provided at the end of the telescopic rod of the fourth telescopic cylinder 99. A tension sensor 10 is provided at both the front and rear ends of the lower surface of the horizontal plate of the L-shaped fixing plate 90. An L-shaped weighing plate 101 is connected to the lower surface of the tension sensor 10. The L-shaped weighing plate 101 can realize the opening and closing of the discharge port of the feeding hopper 97.

[0102] The feeding conveyor belt is used to carry and transport the chicken to be weighed. It can be a belt conveyor, chain conveyor, or roller conveyor to adapt to the conveying needs of chicken of different shapes and sizes. A second strip-shaped groove is formed on the upper surface of the first support plate, providing installation and guiding space for the moving mechanism of the weighing and feeding component. It can be a straight long groove or a guide rail groove with a specific shape to ensure smooth and accurate movement. The fifth motor is the power source driving the overall movement of the weighing and feeding component. It can be a stepper motor, servo motor, or DC motor, etc., and precise adjustment of the feeding position can be achieved by accurately controlling its speed and rotation angle. The third screw is connected to the fifth motor, converting the motor's rotational motion into linear motion, driving the second moving block to move along the second strip-shaped groove. It can be a ball screw or trapezoidal screw to provide high-precision and high-efficiency linear transmission. The second moving block is spirally sleeved on the third screw and carries the moving plate. It can be a slider structure with threaded holes or a slider that cooperates with the guide rail to ensure smooth movement under the drive of the third screw. A movable plate, positioned on the upper surface of the second movable block, serves as a support platform for the feeding conveyor belt. It can be a flat metal or composite material plate, used to mount the third telescopic cylinder and the feeding conveyor belt. The third telescopic cylinder, mounted at both ends of the upper surface of the movable plate, supports and adjusts the height or tilt angle of the feeding conveyor belt. It can be a single-acting or double-acting cylinder, controlling air pressure to extend and retract, thereby adjusting the position of the feeding conveyor belt. A third strip-shaped groove is formed on the front and rear surfaces of the feeding conveyor belt, used to mount a synchronous motor and a fourth screw to drive the movement of the U-shaped movable frame. This groove can be a slot running through the conveyor belt or an embedded guide rail slot. The synchronous motor drives the U-shaped movable frame to move within the third strip-shaped groove. It can be a stepper motor or a servo motor, achieving synchronous or independent movement of the U-shaped movable frame through precise control. The fourth screw, connected to the synchronous motor, converts the motor's rotational motion into linear motion, driving the third movable block. It can be a ball screw or trapezoidal screw, ensuring precise displacement of the U-shaped movable frame. The third moving block is spirally sleeved on the fourth screw and supports the U-shaped moving frame. It can adopt a similar structure to the second moving block to ensure smooth movement driven by the fourth screw. The U-shaped moving frame is mounted on the third moving block, with a hopper on the lower surface of its two vertical plates. This hopper can be a U-shaped structure welded from metal profiles or integrally formed, possessing sufficient rigidity to support the hopper and weighing mechanism. The hopper, located on the lower surface of the two vertical plates of the U-shaped moving frame, collects the chicken conveyed by the feeding conveyor belt and guides it into the holding box. It can adopt a funnel-shaped or conical structure to facilitate smooth material descent. An L-shaped support plate is located on the outer side of the two vertical plates of the U-shaped moving frame for mounting the fourth telescopic cylinder. This plate can be a metal plate with an L-shaped cross-section, providing stable support.The fourth telescopic cylinder is mounted on the L-shaped support plate, with its telescopic rod end connected to an L-shaped fixed plate. It controls the opening and closing of the L-shaped weighing plate, thereby controlling the discharge port of the hopper. This cylinder can be a small one, controlled by air pressure. The L-shaped fixed plate connects to the end of the fourth telescopic cylinder's telescopic rod and carries a tension sensor. It can be an L-shaped metal plate, providing a stable mounting platform. The tension sensor is located at both ends of the lower surface of the L-shaped fixed plate's crossbar, used to detect the weight borne by the L-shaped weighing plate in real time. It can be a resistance strain gauge tension sensor or a piezoelectric sensor, converting the weight signal into an electrical signal. The L-shaped weighing plate connects to the lower surface of the tension sensor and controls the opening and closing of the hopper's discharge port. It can also be an L-shaped metal plate, controlling the opening and closing of the hopper through its own movement or rotation, thus precisely controlling the amount of chicken meat discharged.

[0103] During the operation of the sealing machine, to achieve accurate weighing and feeding of the chicken, the weighing and feeding component of this application is accomplished through a series of coordinated mechanisms. First, the chicken is placed on a feeding conveyor belt. This conveyor belt is supported by a third telescopic cylinder mounted on a moving plate, and its height or tilt angle is adjusted by the extension and retraction of the third telescopic cylinder to adapt to different feeding requirements. The moving plate is spirally mounted on a third screw via a second moving block, and the third screw is driven by a fifth motor, allowing the entire feeding conveyor belt to move horizontally within a second strip-shaped groove on the upper surface of the first support plate. This mobility allows the feeding conveyor belt to be precisely aligned with different holding boxes, or its position adjusted as needed. When the chicken is conveyed to the end of the feeding conveyor belt, it falls into a discharge hopper below a U-shaped moving frame. The U-shaped moving frame is spirally mounted on a fourth screw via a third moving block, and the fourth screw is driven by a synchronous motor, allowing the U-shaped moving frame to move within the third strip-shaped groove of the feeding conveyor belt. This design allows the discharge hopper to be fine-tuned or moved as needed after receiving the chicken. The discharge port of the hopper is controlled by an L-shaped weighing plate, which is connected to an L-shaped fixed plate via a tension sensor. The L-shaped fixed plate is driven by the extension rod of a fourth telescopic cylinder, which is mounted on an L-shaped support plate. As the chicken falls into the hopper and accumulates on the L-shaped weighing plate, the tension sensor detects its weight in real time. Once the preset weight is reached, the control system drives the fourth telescopic cylinder to extend or retract, causing the L-shaped weighing plate to open the discharge port of the hopper and deliver the precisely weighed chicken to the container. In this way, the weighing and feeding system can achieve precise weighing, position adjustment, and quantitative feeding of chicken, effectively solving the problems of uneven chicken weight and insufficient feeding accuracy, and ensuring the standardization and consistency of product packaging.

[0104] The following is a concrete example illustrating how the weighing and feeding system can be implemented: The feeding conveyor belt can be a food-grade PU belt with an anti-slip texture to ensure the stability of the chicken during transport. The second groove on the upper surface of the first support plate can be a groove with a linear guide rail. The fifth motor can be a stepper motor, which drives a third screw (in the form of a ball screw) to precisely move the second moving block along the guide rail. The moving plate can be made of aluminum alloy sheet, and two sets of small double-acting cylinders are installed on it as the third telescopic cylinder to adjust the tilt angle of the feeding conveyor belt, facilitating the smooth sliding of the chicken. The front and rear surfaces of the feeding conveyor belt can be embedded with linear guide rails, forming the third groove. The synchronous motor can be a small servo motor, which drives a fourth screw (in the form of a ball screw) to move the third moving block and its U-shaped moving frame along the guide rail. The U-shaped moving frame can be welded from stainless steel square tubing, and the discharge hopper below it can be a conical stainless steel funnel. The L-shaped support plate can be fixed to the side wall of the U-shaped moving frame, and a small single-acting cylinder is installed on it as the fourth telescopic cylinder. The L-shaped fixed plate is hinged to the end of the telescopic rod of the fourth telescopic cylinder by a pin, and a high-precision tension sensor is installed at each of the front and rear ends of its lower surface. The L-shaped weighing plate connected below the tension sensor can be a flip-plate structure that can rotate around an axis. When the chicken under the weighing plate reaches the set weight, the cylinder extends and retracts, driving the L-shaped fixed plate and the L-shaped weighing plate to rotate, thereby opening the discharge port of the hopper and completing the precise quantitative feeding.

[0105] Through the above technical solution, the sealing machine of this application can achieve precise weighing and automated feeding of chicken. The weighing and feeding unit, through a movable feeding conveyor belt, a precisely driven screw mechanism, and a sensitive weighing and control system, solves the problem of inaccurate feeding caused by uneven chicken weight in traditional feeding methods. Specifically, the horizontal movement capability of the feeding conveyor belt allows the chicken to be accurately transported to the designated position, while the combination of a tension sensor and an L-shaped weighing plate can monitor the weight of the chicken in the hopper in real time and precisely control the opening and closing of the hopper according to preset values, thereby ensuring that the weight of chicken entering the container is consistent each time. This not only improves the standardization of product quality and reduces manual intervention, but also significantly improves production efficiency and packaging accuracy, making the sealing machine more adaptable and reliable when handling chicken of different specifications and batches.

[0106] In some other embodiments, this application discloses a sealing machine, whose weighing and feeding component includes a feeding conveyor belt for conveying chicken meat. A second strip-shaped groove is formed on the upper surface of a first support plate. A fifth motor is disposed within the second strip-shaped groove. The output end of the fifth motor is connected to a third screw. A second moving block is spirally sleeved on the third screw. A moving plate is disposed on the upper surface of the second moving block. Third telescopic cylinders are disposed at both the front and rear ends of the upper surface of the moving plate. The feeding conveyor belt is disposed at the end of the telescopic rod of the third telescopic cylinder. A third strip-shaped groove is formed on both the front and rear surfaces of the feeding conveyor belt. A synchronous motor is disposed within the third strip-shaped groove. The output end of the synchronous motor is connected to a third... The four-screw assembly includes a fourth screw with a third moving block spirally mounted on it. A U-shaped moving frame is mounted on the third moving block. The lower surfaces of the two vertical plates of the U-shaped moving frame have feeding hoppers corresponding to the discharge ports of the feeding conveyor belt. L-shaped support plates are mounted on the outer sides of the two vertical plates of the U-shaped moving frame. A fourth telescopic cylinder is mounted on the L-shaped support plate, with its telescopic rod passing through the horizontal plate of the L-shaped support plate. An L-shaped fixing plate is located at the end of the telescopic rod. Tension sensors are mounted at both ends of the lower surface of the horizontal plate of the L-shaped fixing plate, and an L-shaped weighing plate is connected to the lower surface of the tension sensors. The L-shaped weighing plate enables the opening and closing of the feeding hopper's discharge port. However, during the weighing and feeding process described above, the moving parts within the second and third grooves, such as the motor, screw, and moving block, are easily contaminated by dust, debris, or chicken particles in the chicken processing environment. This can lead to component wear, malfunctions, and even affect weighing accuracy and equipment hygiene.

[0107] Please continue reading. Figure 1 , Figure 2 and Figure 4 As shown, this application further proposes that the second strip groove 92 and the third strip groove 95 are provided with telescopic protective sleeves 102.

[0108] A telescopic protective sleeve is a protective device that extends and retracts with the movement of internal components. Its main function is to isolate the external environment from internal moving parts, preventing dust, liquids, debris, and other contaminants from entering the recessed area, thereby protecting internal precision mechanical components such as the fifth motor, third screw, synchronous motor, fourth screw, and second and third moving blocks from corrosion, wear, or blockage. Telescopic protective sleeves can be implemented in various ways. For example, an accordion-style protective cover can be used, constructed from multiple layers of folded material, resembling an accordion, which can flexibly extend and retract as the component moves, providing comprehensive sealing protection. Another implementation is a telescopic sleeve-type protective cover, composed of multiple nested sleeve-shaped components that extend and retract through sliding fit; these are typically made of metal or engineering plastics, offering good rigidity and durability. Additionally, a roller shutter-type protective cover can be used, where a roller mechanism rolls up or unfolds flexible material to accommodate the range of component movement.

[0109] The solution proposed in this application involves installing telescopic protective sleeves within the second and third strip-shaped grooves. This ensures that critical moving components within the weighing and feeding unit, such as the fifth motor, third screw, second moving block, synchronous motor, fourth screw, and third moving block, remain in a protected environment during operation. As the feeding conveyor belt moves within the second and third strip-shaped grooves, the telescopic protective sleeves extend or retract synchronously, ensuring that the internal space of the grooves is always effectively covered and sealed. This design cleverly isolates the moving components from the external environment, forming a physical barrier that prevents external dust, debris, liquids, and especially contaminants such as meat scraps or grease that may be generated during chicken processing, from entering the grooves. This avoids the corrosion, wear, or interference of these contaminants on the internal mechanical transmission components. Simultaneously, the installation of the telescopic protective sleeves does not affect the normal movement range of the feeding conveyor belt or the overall function of the weighing and feeding unit, ensuring smooth weighing and feeding processes.

[0110] The following is a specific example illustrating this: the telescopic protective sleeve can be a bellows-style protective cover made of wear-resistant, oil-resistant, and easy-to-clean polyurethane material. Both ends of this bellows-style protective cover are fixed to the fixed ends of the second and third strip grooves, as well as to the moving plate or U-shaped moving frame, respectively. For example, in the second strip groove, one end of the protective sleeve is fixed to the fixed position of the first support plate, and the other end is connected to the second moving block or moving plate, extending and retracting with the reciprocating movement of the moving plate. Similarly, in the third strip groove, one end of the protective sleeve is fixed to the fixed end of the feeding conveyor belt, and the other end is connected to the third moving block or U-shaped moving frame, ensuring effective protection for components such as the synchronous motor and the fourth screw when the U-shaped moving frame moves. This bellows-style design provides good sealing while maintaining sufficient flexibility to accommodate component movement, and its smooth surface facilitates daily cleaning and maintenance.

[0111] By incorporating telescopic protective sleeves within the second and third strip-shaped grooves, the aforementioned technical solution effectively prevents external contaminants, particularly debris, grease, or dust generated during chicken processing, from entering the precision transmission mechanism inside the weighing and feeding unit. This significantly reduces the risk of wear and corrosion to internal components, extends the service life of critical components such as the fifth motor, third screw, synchronous motor, and fourth screw, and reduces failure rates and maintenance costs caused by contamination. Simultaneously, it maintains a clean and hygienic internal environment for the weighing and feeding unit, which is crucial for ensuring product quality and compliance with hygiene standards in food processing equipment. Furthermore, the improved operating environment for internal components enhances the accuracy and stability of the weighing and feeding process, thereby ensuring the overall reliability and efficiency of the sealing machine.

[0112] In some embodiments described above, a weighing and feeding device for weighing and conveying chicken meat into a container is proposed. This device includes a feeding conveyor belt and a U-shaped moving frame with a hopper for receiving and conveying the chicken meat. However, during the weighing and conveying of the chicken meat, dust, debris, or liquid splashes may be generated. These impurities may fall onto the upper surface of the cross plate of the U-shaped moving frame, thereby contaminating the equipment or affecting the normal operation of the precision components below.

[0113] Please continue reading. Figure 1 and Figure 2 As shown, this application further proposes to provide an L-shaped dust cover 103 on the upper surface of the cross plate of the U-shaped mobile frame 96.

[0114] The upper surface of the horizontal plate of the U-shaped moving frame refers to the top horizontal structural part of the U-shaped moving frame, which is usually used to support or connect other components, such as the feed hopper. This surface is easily exposed to impurities in the air during chicken processing. The L-shaped dust cover is a protective cover with an L-shaped cross-section, designed to provide protection for the top and sides. This dust cover can be made of various materials; for example, transparent or semi-transparent polycarbonate can be used to allow operators to observe the interior; or metal materials such as stainless steel or aluminum alloy can be used to provide greater structural strength and corrosion resistance, and ease of cleaning. Alternatively, flexible materials such as food-grade silicone can be used to adapt to specific installation requirements and provide good sealing. The main function of the L-shaped dust cover is to act as a physical barrier to prevent dust, debris, meat scraps, and other particulate matter or liquid splashes from falling onto the upper surface of the horizontal plate of the U-shaped moving frame and any sensitive components that may be located below it.

[0115] The solution proposed in this application involves installing an L-shaped dust cover on the upper surface of the cross plate of the U-shaped moving frame. This effectively blocks and collects dust, debris, or liquid splashes generated during the weighing and conveying of chicken by the weighing and loading components. The L-shaped structure of the dust cover covers both the top and part of the side of the cross plate, forming an effective protective area. This prevents these impurities from falling directly onto the upper surface of the cross plate of the U-shaped moving frame or onto any precision components that may be located below it. This configuration ensures the hygiene of the weighing and loading components when processing chicken and protects the internal mechanisms from contamination, thereby maintaining the cleanliness and weighing accuracy of the equipment.

[0116] The following example illustrates this: an L-shaped dust cover can be integrally formed and bent from food-grade stainless steel sheet. Its horizontal portion covers the entire upper surface of the cross plate of the U-shaped moving frame, while its vertical portion extends downwards to form side protection. This dust cover can be secured to the upper surface of the cross plate of the U-shaped moving frame using bolts or clips, facilitating routine disassembly, cleaning, and maintenance. The size and shape of the dust cover precisely match the upper surface of the cross plate of the U-shaped moving frame, ensuring maximum protection without affecting the movement of the U-shaped moving frame or the normal operation of the hopper.

[0117] Through the above technical solution, the L-shaped dust cover effectively blocks and collects dust, debris, or liquid splashes generated during the weighing and conveying of chicken, significantly improving the hygiene level of the weighing and feeding components and reducing the risk of product contamination. Simultaneously, the dust cover protects the precision mechanical components and sensors beneath the U-shaped moving frame, preventing wear, malfunctions, or decreased weighing accuracy caused by impurity accumulation or intrusion, thus ensuring the long-term stable operation and weighing accuracy of the weighing and feeding components.

[0118] In this invention, the motor, conveyor belt, synchronous motor, telescopic cylinder, and tension sensor are all existing technologies, and this invention is controlled by existing control system software, so they will not be described in detail here.

[0119] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A sealing machine, characterized in that: The device includes a feeding conveyor belt for conveying containers for holding chicken. A gantry frame is fitted at the outlet of the feeding conveyor belt. A guide for sealing film is provided on the upper surface of the horizontal plate of the gantry frame. T-shaped support frames are provided at both ends of the lower surface of the horizontal plate of the gantry frame. A heat-sealing component is provided at the front end of the T-shaped support frame. A first cutting component for cutting the sealing film is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. A second cutting component is provided at the rear end between the T-shaped support frames at both ends. The feeding conveyor belt is provided with a dividing and limiting component for dividing the feeding conveyor belt into two feeding channels. A first support plate is provided on the right side of the feeding conveyor belt. A weighing and feeding component for weighing the chicken and conveying it into the container is provided on the upper surface of the first support plate.

2. A sealing machine according to claim 1, characterized in that: The guiding feeding component includes a fixed plate. The fixed plate is located on the right end of the upper surface of the horizontal plate of the gantry frame, and the fixed plate is perpendicular to the horizontal plate of the gantry frame. A U-shaped support rod is located on the upper rear side of the left side of the fixed plate. A feeding roller driven by a first motor is located in the middle of the left side of the fixed plate. Connecting rods are rotatably hinged to the inner sides of the two vertical plates of the U-shaped support rod, and the connecting rods are driven by a second motor. A first guide roller is located between the two connecting rods. A fixed block is located at the front end of the upper surface of the fixed plate. A second guide roller is rotatably mounted on the fixed block, and a third motor for driving the second guide roller is mounted on the fixed block. A strip-shaped feeding port is opened at the front end of the horizontal plate of the gantry frame. Third guide rollers are located on both the front and rear sides of the front end of the lower surface of the horizontal plate of the gantry frame, and the third guide rollers are located at the front and rear ends of the strip-shaped feeding port.

3. A sealing machine according to claim 2, characterized in that: A plastic film roll is placed on the feeding roller. The front end of the plastic film roll is guided to the second guide roller via the first guide roller. The second guide roller is higher than the first guide roller. The film roll is then guided to the third guide roller at both ends via the second guide roller for film sealing.

4. A sealing machine according to claim 1, characterized in that: The heat-sealing component includes a heat-sealing roller. A guide rail groove is provided at the front end of the lower surface of the cross plate of the T-shaped support frame. Sliding blocks are provided at both the front and rear ends of the guide rail groove. A lifting rod is hinged to the lower surface of the sliding block. The lifting rods are arranged crosswise. The middle of the lifting rods at the front and rear ends is hinged. A connecting block is hinged to the end of the lifting rod. A support rod is provided on the lower surface of the connecting block. A first support block is provided in the middle of the lower surface of the support rod. A lifting plate is provided between the first support blocks at the left and right ends. A first telescopic cylinder is provided at the front end of the lower surface of the gantry frame. The end of the telescopic rod of the first telescopic cylinder is connected to the middle of the lifting plate.

5. A sealing machine according to claim 1, characterized in that: The first cutting component includes a first cutting blade. A second support plate is provided in the middle between the horizontal plates of the T-shaped support frames at both ends. A strip-shaped sliding opening is provided on the second support plate. A first bolt is passed through the strip-shaped sliding opening. A support sleeve is provided at the end of the first bolt. A telescopic rod is embedded in the support sleeve. The telescopic rod is fixed by a second bolt. A strip-shaped positioning opening is provided on the telescopic rod. The second bolt passes through the strip-shaped positioning opening. A first blade holder is provided at the end of the telescopic rod. The first cutting blade is provided on the lower surface of the first blade holder. The support sleeve is perpendicular to the second support plate.

6. A sealing machine according to claim 5, characterized in that: The second cutting component includes a second cutting blade. A third support plate is provided at the rear end between the horizontal plates of the T-shaped support frames at both ends. A first strip groove is provided on the lower surface of the third support plate. A fourth motor is provided in the first strip groove. The output end of the fourth motor is connected to a first screw. A first moving block is spirally sleeved on the first screw. A second telescopic cylinder is provided on the lower surface of the first moving block. A second blade holder is provided at the end of the telescopic rod of the second telescopic cylinder. A second cutting blade is provided on the second blade holder, and the first cutting blade and the second cutting blade are arranged perpendicularly.

7. A sealing machine according to claim 1, characterized in that: The separating and limiting component includes a second support block. The second support block is provided at both the front and rear ends of the upper surface of the left and right support plates of the feeding conveyor belt. A second screw is provided between the second support blocks at both ends. Multiple separating and limiting plates are spirally sleeved on the second screw, and the separating and limiting plates are arranged from left to right, forming a feeding channel between each pair of separating and limiting plates.

8. A sealing machine according to claim 1, characterized in that: The weighing and feeding device includes a feeding conveyor belt for conveying chicken meat. A second strip-shaped groove is formed on the upper surface of the first support plate. A fifth motor is installed within the second strip-shaped groove. The output end of the fifth motor is connected to a third screw. A second moving block is spirally sleeved on the third screw. A moving plate is provided on the upper surface of the second moving block. Third telescopic cylinders are provided at both the front and rear ends of the upper surface of the moving plate. The feeding conveyor belt is located at the end of the telescopic rod of the third telescopic cylinder. A third strip-shaped groove is formed on both the front and rear surfaces of the feeding conveyor belt. A synchronous motor is installed within the third strip-shaped groove. The output end of the synchronous motor is connected to a fourth screw. The fourth screw... A third moving block is provided on the spiral sleeve, and a U-shaped moving frame is provided on the third moving block. The lower surfaces of the two vertical plates of the U-shaped moving frame are provided with a feeding hopper corresponding to the discharge port of the feeding conveyor belt. The outer sides of the two vertical plates of the U-shaped moving frame are provided with L-shaped support plates. The L-shaped support plates are provided with a fourth telescopic cylinder. The telescopic rod of the fourth telescopic cylinder passes through the horizontal plate of the L-shaped support plate. The end of the telescopic rod of the fourth telescopic cylinder is provided with an L-shaped fixing plate. The lower surfaces of the horizontal plate of the L-shaped fixing plate are provided with tension sensors at both ends. The lower surfaces of the tension sensors are connected to an L-shaped weighing plate. The L-shaped weighing plate can realize the opening and closing of the discharge port of the feeding hopper.

9. A sealing machine according to claim 8, characterized in that: The second and third strip grooves are provided with telescopic protective sleeves.

10. A sealing machine according to claim 8, characterized in that: The upper surface of the horizontal plate of the U-shaped mobile frame is provided with an L-shaped dust cover.

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