A tunnel-type quick-freezing machine

Abstract

This utility model discloses a tunnel-type quick-freezing machine, belonging to the technical field of quick-freezing devices. The quick-freezing machine includes a central partition and two supporting side plates. The central partition is located between the two supporting side plates and connected by side connecting plates. Support legs are provided on the top of the supporting side plates to mount the freezer body. A set of conveying components is provided on each side of the central partition. Each set includes two rotating rollers and a perforated conveyor belt, realizing primary and secondary quick-freezing of the product. The cleaning component includes a water tank, a water pump, a water collection box, nozzles, an air pump, and a perforated block. The water tank is snapped into the mounting groove of the supporting side plate. The water pump delivers water to the nozzles to rinse the conveyor belt, and the air pump blows air through small holes in the block to remove moisture. The product's appearance is improved through primary quick-freezing, water rinsing, and secondary quick-freezing. The rinsing water flows back to the water tank for recycling. This structure improves the product's appearance, prevents weight loss and cracking, and achieves automatic cleaning of the conveyor belt, improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of quick-freezing equipment technology, and in particular to a tunnel-type quick-freezing machine. Background Technology

[0002] In the food processing industry, especially in the processing of seafood such as sea cucumbers, the quick-freezing process is crucial. Quick-freezing can rapidly lower the temperature of the product, causing the moisture in the product to form tiny ice crystals, thus preserving the product's nutrients and texture to the greatest extent and extending its shelf life.

[0003] However, traditional quick-freezing methods have many problems. On the one hand, after the initial quick-freezing, products such as sea cucumbers often develop a frost on their surface, resulting in an unattractive appearance and affecting their selling price and market acceptance. Moreover, this frost phenomenon may also be accompanied by weight loss and cracking, further reducing the product's quality and economic value.

[0004] On the other hand, during the quick-freezing production process, the conveyor belt, as a key component for product transport, is prone to accumulating ice and moisture on its surface. This ice and moisture not only affects the normal operation of the conveyor belt, causing slippage and increased wear, but also breeds bacteria, affecting the hygiene and quality of the product. Traditional cleaning methods typically require manual, periodic shutdowns for cleaning, which is inefficient and ineffective, failing to meet the demands of modern large-scale production.

[0005] Therefore, developing a new type of tunnel-type quick-freezing machine that can solve the above problems is of great practical significance, in order to improve the quick-freezing quality and production efficiency of seafood products such as sea cucumbers, reduce production costs, and meet the market demand for high-quality seafood products. Utility Model Content

[0006] The purpose of this invention is to address the problem in existing technologies where sea cucumbers and other products often develop frost on their surface after initial quick-freezing, resulting in an unattractive appearance and impacting sales price and market acceptance. Furthermore, this frost phenomenon can lead to weight loss and cracking, further reducing product quality and economic value. During quick-freezing production, the conveyor belt, as a key component for product transport, easily accumulates ice and moisture on its surface. This ice and moisture not only affects the normal operation of the conveyor belt, causing slippage and increased wear, but also fosters bacterial growth, affecting the product's hygiene and quality. Traditional cleaning methods typically require periodic manual shutdowns for cleaning, which is inefficient and ineffective, failing to meet the demands of modern large-scale production. Therefore, this invention proposes a tunnel-type quick-freezing machine.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A tunnel-type quick-freezing machine includes a central partition and two supporting side plates. The central partition is located between the two supporting side plates and is parallel to each other. The central partition and the two supporting side plates are fixedly connected by a plurality of side connecting plates. The support leg has a refrigeration unit mounted on its top, and the refrigeration unit is located on top of two supporting side plates. Two sets of conveying components are respectively arranged on both sides of the central partition. Each set of conveying components includes two rotating rollers connected by a drive and a conveyor belt sleeved on them. The surface of the conveyor belt has multiple holes for conveying products through the freezer body for primary and secondary quick freezing. The cleaning assembly includes a water tank, a water pump, a water collection box, a nozzle, an air pump, and a block. The water tank is snapped into the mounting groove of one of the supporting side plates. The water inlet of the water pump is connected to the water tank, and its outlet is connected to the nozzle through the water collection box. The nozzle is positioned towards the conveyor belt to rinse away ice slag. The air outlet of the air pump is connected to the block, which has multiple small holes. The block is positioned towards the conveyor belt to blow away moisture. The product is first quick-frozen, then rinsed with water, and then quick-frozen a second time to improve its appearance. The water used for rinsing is recycled back to the water tank to achieve water recycling.

[0008] In one possible design, a mounting cavity is provided on one side of the central partition, and a servo motor is fixedly mounted in the mounting cavity by bolts. The output shaft of the servo motor is connected to the shaft end of one of the rotating rollers to drive the conveyor belt.

[0009] In one possible design, an inspection cover is detachably mounted at the opening of the mounting cavity via multiple mounting blocks and screws, and the inspection cover has tool mounting holes for operation.

[0010] In one possible design, the cleaning assembly further includes a horizontal support plate welded to a side connecting plate, and the water pump is bolted to the top of the horizontal support plate.

[0011] In one possible design, the block is an aluminum alloy component that is hollow inside and has multiple micropores on its surface, and its installation position maintains a predetermined gap with the lower surface of the conveyor belt.

[0012] In this application, when using products such as sea cucumbers that require quick freezing, the sea cucumbers are initially conveyed through one of the conveyor belts. After the sea cucumbers pass through the conveyor belt and are initially frozen by the freezer body, they are discharged from the other side. At this time, the surface of the sea cucumbers is frosted and not very attractive. So, the sea cucumbers are brushed with water and then passed through the other conveyor belt for quick freezing again, making them more attractive, less prone to weight loss, and less likely to crack. The servo motor is started, and its output shaft drives the rotating roller to rotate. The rotating roller drives the conveyor belt forward through the pulley to transport the sea cucumbers. The surface of the conveyor belt has multiple holes, and the inspection cover is fixed to the mounting block with screws to protect the servo motor and allow for quick maintenance in the future. Furthermore, an installation groove is provided on one side of the support plate. The water tank is snapped into the installation groove. When the water pump is started, the water pump draws water out of the water tank and sends it into the water collection box. Finally, multiple nozzles spray out to wash the ice crystals on the surface of the conveyor belt. The water is recycled again through the extension section of the water tank, and gas is sent into the interior of the block by an air pump. Multiple small holes are provided on the surface of the block, which can use multiple airflows to blow out the water inside the holes of the conveyor belt and dry it.

[0013] Beneficial effects: Sea cucumbers and other products often develop a frosty surface after their initial quick-freezing in the freezer, which is not aesthetically pleasing. This tunnel-type quick-freezing machine, with its two conveyor belts, allows sea cucumbers to be brushed with water after their initial freezing and then quick-frozen again via the other conveyor belt. This effectively improves the appearance of the sea cucumbers, making them more attractive, while also preventing weight loss and cracking, thus enhancing the overall quality and market competitiveness of the product.

[0014] A servo motor drives the rotating rollers, which in turn propels the conveyor belt forward to transport products. This driving method allows for precise control of the conveyor belt's speed and stability, ensuring that products do not slip or accumulate during transport, thus guaranteeing continuous and stable production.

[0015] Multiple holes are created on the surface of the conveyor belt for easy cleaning. In the cleaning assembly, a water pump draws water from the tank and sends it to a collection box. Multiple nozzles then spray water to wash away ice crystals from the conveyor belt surface. The water is recycled through an extension of the tank, achieving water resource recycling. Simultaneously, an air pump injects air into the block, using multiple streams of air ejected from the small holes on the block's surface to blow out and dry the water inside the conveyor belt's holes. This effectively prevents bacterial growth or damage caused by water accumulation, extending the conveyor belt's service life. The inspection cover is fixed to the mounting block with screws, facilitating protection of the servo motor and enabling quick maintenance, reducing equipment maintenance costs and downtime.

[0016] The central partition is located between two parallel supporting side plates and connected by multiple side connecting plates to form a stable overall structure. Support legs are installed at the top of the supporting side plates for mounting the chiller body. One of the supporting side plates has a mounting slot for connecting the water tank. The compact and rational layout of all components makes full use of space, reduces the equipment's footprint, and facilitates installation and use in the production workshop. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a tunnel-type quick-freezing machine proposed in this utility model; Figure 2 An exploded view of a tunnel-type quick-freezing machine proposed in this utility model; Figure 3 This is an exploded view of the inspection plate and the central partition plate in a tunnel-type quick-freezing machine proposed in this utility model.

[0018] In the diagram: 1. Refrigeration unit body; 2. Support side plate; 3. Water tank; 4. Water pump; 5. Inspection cover plate; 6. Side connecting plate; 7. Central partition plate; 8. Support leg; 9. Air pump; 10. Mounting groove; 11. Horizontal support plate; 12. Water collection box; 13. Nozzle; 14. Servo motor; 15. Rotating roller; 16. Block; 17. Mounting block; 18. Mounting cavity; 19. Mounting hole; 20. Conveyor belt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In one embodiment: Refer to Figure 1-3 A tunnel-type quick-freezing machine is described. The main frame of the equipment consists of a central partition 7 and two supporting side plates 2. The central partition 7 is arranged parallel to the two supporting side plates 2 and is rigidly connected by multiple side connecting plates 6. Support legs 8 support the freezer body 1, forming the core cavity for quick-freezing operations.

[0021] The conveying assembly adopts a double rotating roller 15 structure. The two rotating rollers 15 are rotatably connected to the corresponding positions of the support side plate 2 and the central partition plate 7 via bearings. A pulley is fixedly sleeved on the outer wall of the rotating roller 15. The conveyor belt 20 adopts a ring structure and is sleeved between the two pulleys. Circular holes with a diameter of 2-3 mm are evenly distributed on the surface of the conveyor belt 20 (not shown in the figure). An installation cavity 18 is opened inside the central partition plate 7. The servo motor 14 is fixed to the inner wall of the installation cavity 18 by bolts, and its output shaft is connected to the shaft end of one of the rotating rollers 15 via a coupling. A maintenance cover plate 5 is positioned on the outer wall of the installation cavity 18 by four mounting blocks 17. The maintenance cover plate 5 is fastened to the mounting blocks 17 by M4 screws. Four mounting holes 19 are opened on the surface of the cover plate for operating maintenance tools.

[0022] Two of the conveyor belts 20 can be arbitrarily controlled to change direction.

[0023] The cleaning components are integrated into the outer side of one of the side connecting plates 6. The horizontal support plate 11 is fixed to the side connecting plate 6 by welding, and the water pump 4 is fixed to the top of the horizontal support plate 11 by bolts. The water inlet of the water pump 4 is connected to the bottom of the water tank 3 through a PVC hose. The water tank 3 is fixed to the mounting groove 10 on the outer side of the support side plate 2 by snap-fit. The extension section of the water tank is provided with a return water outlet. The water outlet of the water pump 4 is connected to the water collection box 12 through a galvanized steel pipe. The water collection box 12 is arranged horizontally along the inner wall of the support side plate 2, and eight nozzles 13 are evenly distributed on its lower surface.

[0024] During equipment operation, sea cucumber products are conveyed via the first conveyor belt 20 to the bottom of the freezer body 1 for initial quick freezing. After being discharged, they are manually brushed with water and then subjected to secondary quick freezing via the second conveyor belt 20. When the servo motor 14 drives the rotating roller 15 to rotate, the running speed of the conveyor belt 20 is adjustable within the range of 0.1-0.5 m / s. When the conveyor belt 20 reaches the return section, the water pump 4 starts to pressurize the clean water in the water tank 3 to 0.2-0.3 MPa, forming a fan-shaped water curtain through the nozzles 13 to rinse the surface of the conveyor belt 20. The rinsing water flows back to the water tank 3 through the holes in the conveyor belt for recycling. Simultaneously, the air pump 9 starts to generate compressed air at 0.05-0.1 MPa, forming multiple airflows through the micropores of the block 16, which can both blow away residual moisture in the holes of the conveyor belt and achieve the drying treatment of the conveyor belt.

[0025] This structure solves the problem of surface frosting in products through a double quick-freezing process, improving the gloss of the finished sea cucumber and reducing the cracking rate. The automatic conveyor belt cleaning system reduces equipment downtime for maintenance, improves water recycling efficiency, and the pneumatic drying device extends the service life of the conveyor belt. The overall equipment adopts a modular design, reducing the footprint compared to traditional equipment, shortening installation and commissioning time, and lowering overall energy consumption.

[0026] This application can be used in the field of quick-freezing equipment, or in other fields applicable to this application.

[0027] In another embodiment: Reference Figure 1-3 A tunnel-type quick-freezing machine, used in the field of quick-freezing equipment, comprises a pneumatic cleaning system consisting of a block 16 and an air pump 9. The block 16 is made of aluminum alloy and machined into a hollow cuboid structure with uniformly distributed micropores of 0.5 mm diameter on its surface. The air pump 9 is fixed to the top of the freezer body 1 by bolts, and its air outlet is connected to the air inlet of the block 16 via a rubber hose. The installation position of the block 16 maintains a 5 mm gap with the lower surface of the conveyor belt 20 to ensure that the airflow can penetrate the conveyor belt holes.

[0028] However, as is well known to those skilled in the art, the working principles and wiring methods of the air pump 9, water pump 4, servo motor 14, and chiller body 1 are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tunnel freezer characterized in that, include: A central partition (7) and two supporting side plates (2), wherein the central partition (7) is located between the two supporting side plates (2) and is parallel to each other, and the central partition (7) and the two supporting side plates (2) are fixedly connected by a plurality of side connecting plates (6); Support leg (8), the top of which is mounted a freezer body (1), the freezer body (1) being located on top of two support side plates (2); Two sets of conveying components are respectively set on both sides of the central partition (7). Each set of conveying components includes two rotating rollers (15) connected by transmission and a conveyor belt (20) sleeved on it. The surface of the conveyor belt (20) is provided with multiple holes for conveying products through the freezer body (1) for initial quick freezing and secondary quick freezing. The cleaning assembly includes a water tank (3), a water pump (4), a water collection box (12), a nozzle (13), an air pump (9), and a block (16). The water tank (3) is snapped into the mounting groove (10) of one of the supporting side plates (2). The inlet of the water pump (4) is connected to the water tank (3), and its outlet is connected to the nozzle (13) through the water collection box (12). The nozzle (13) is positioned towards the conveyor belt (20) to rinse away ice slag. The outlet of the air pump (9) is connected to the block (16) which has multiple small holes. The block (16) is positioned towards the conveyor belt (20) to blow away moisture. The product is first quick-frozen, then brushed with water, and then quick-frozen a second time to improve its appearance. The water after rinsing is recycled to the water tank (3) to achieve water recycling.

2. The tunnel freezer of claim 1, wherein, A mounting cavity (18) is provided on one side of the central partition (7). A servo motor (14) is fixedly installed in the mounting cavity (18) by bolts. The output shaft of the servo motor (14) is connected to the shaft end of a rotating roller (15) to drive the conveyor belt (20).

3. The tunnel freezer of claim 2, wherein, The opening of the mounting cavity (18) is detachably fitted with a maintenance cover plate (5) by means of multiple mounting blocks (17) and screws. The maintenance cover plate (5) is provided with tool mounting holes (19) for operation.

4. The tunnel-type quick-freezing machine according to claim 1, characterized in that, The cleaning assembly also includes a horizontal support plate (11), which is welded and fixed to a side connecting plate (6), and the water pump (4) is fixedly installed on the top of the horizontal support plate (11) by bolts.

5. The tunnel-type quick-freezing machine according to claim 1, characterized in that, The block (16) is an aluminum alloy component with a hollow interior and multiple micropores on its surface. Its installation position maintains a predetermined gap with the lower surface of the conveyor belt (20).

6. The tunnel-type quick-freezing machine according to claim 1, characterized in that, The number of the support legs (8) is four, which are welded to the top four corners of the two support side plates (2) respectively, and together support the refrigerator body (1).

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