A tunnel cooling device for dipping chocolate

Abstract

This utility model provides a tunnel cooling device for dipping chocolate, belonging to the technical field of tunnel cooling equipment. The utility model includes a machine body with rotating rollers rotatably connected to both ends. A conveyor belt is fitted onto the outer surface of each rotating roller. A cleaning device is provided at one end of the outer surface of the machine body. The cleaning device includes two frame plates, with a shaft rotatably connected to one side of the two frame plates that are close to each other. Several stiff bristles are arranged around the outer surface of the cleaning rollers. This utility model, by setting up a cleaning device and installing a continuously rotating shaft at one end of the machine body below the conveyor belt, uses several cleaning rollers on the outer surface of the shaft to contact the bottom surface of the conveyor belt. The stiff bristles on the outer surface of the cleaning rollers clean the chocolate residue adhering to the outer surface of the conveyor belt, minimizing chocolate residue adhesion and improving the practicality and cleanliness of the cooling equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel cooling equipment, and in particular to a tunnel cooling device for dipping in chocolate. Background Technology

[0002] The chocolate dipping tunnel cooling equipment is a supporting equipment for the chocolate dipping production line. It is mainly used to quickly cool and solidify the chocolate-dipped food for subsequent packaging. The cooling part mainly consists of a condenser, compressor, evaporator, etc. It uses a small, high-efficiency refrigeration unit that can form a self-circulating air duct in the tunnel body to provide circulating cold air for the cooling tunnel, and split the cold air to the left and right to cool the food.

[0003] When chocolate-coated foods enter the conveyor belt of the cooling equipment, the chocolate coating on the outer surface will adhere to the conveyor belt. During the operation of the equipment, the residual chocolate is repeatedly heated on the surface of the conveyor belt and is easy to stick to the new coated products. At the same time, long-term residual chocolate is prone to the growth of microorganisms, which will cause food safety problems for chocolate-coated foods. Moreover, manual wiping and cleaning is inconvenient, resulting in low practicality and functionality of the cooling equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problems that, during equipment operation, residual chocolate is repeatedly heated on the surface of the conveyor belt, easily sticking to new dip-coated products. At the same time, long-term residual chocolate is prone to microbial growth, which can cause food safety issues in dip-coated chocolate products. Furthermore, manual wiping and cleaning is inconvenient, resulting in low practicality and functionality of the cooling equipment. Therefore, this invention proposes a tunnel cooling device for dip-coated chocolate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tunnel cooling device for dipping chocolate, comprising a body, universal wheels respectively provided on both sides of the bottom end of the body, a first servo motor provided on one side of the outer surface of the body, rotating rollers respectively rotatably connected to both ends of the body, a conveyor belt sleeved on the outer surface of the rotating rollers, the output end of the first servo motor being connected to one end of a rotating roller through a reducer, a condenser and an evaporator and a cooling fan provided inside the body, the cooling fan being located inside the body on both sides of the top end of the conveyor belt, and a cleaning device for cleaning the outer surface of the conveyor belt provided at one end of the outer surface of the body.

[0006] Furthermore, the cleaning device includes two frame plates, one end of which is fixedly connected to one side of the machine body. A shaft is rotatably connected to the side of the two frame plates that are close to each other. Several rectangular rods are fixedly connected to the outer circumference of the shaft. A rotating shaft is rotatably connected to the top of the two rectangular rods. A cleaning roller is fixedly connected to the outer surface of the rotating shaft. Several hard bristles are provided on the outer circumference of the cleaning roller. A second servo motor is provided on one side of one of the frame plates. The output end of the second servo motor is fixedly connected to one end of the shaft through a coupling.

[0007] Furthermore, by setting up a cleaning roller, when using the cooling equipment, the second servo motor on one side of the frame can be operated. The coupling at the output end of the second servo motor drives the shaft to rotate away from the machine body. When the shaft rotates, a cleaning roller on the outer surface will rotate to the bottom of the conveyor belt. When the cleaning roller contacts the bottom surface of the conveyor belt, it will scrape the chocolate adhering to the bottom surface of the conveyor belt away from the outer surface of the conveyor belt, thus avoiding the accumulation of chocolate paste on the outer surface of the conveyor belt as much as possible.

[0008] Furthermore, a gear is fixedly connected to one end of the rotating shaft, and a toothed ring is fixedly connected to one side of one of the frame plates, with the outer surface of the gear meshing with the inner wall of the toothed ring.

[0009] Furthermore, a support rod is fixedly connected to one side of each of the two frame plates, and a plurality of protruding rods are fixedly connected to one side of each support rod, the protruding rods being arranged linearly on one side of the support rod.

[0010] Furthermore, a sliding rod is slidably connected to one side of the inner wall of each of the two shelves. A spring is provided at one end of the sliding rod, and the two ends of the spring are fixedly connected to one end of the sliding rod and one side of the inner wall of the shelf, respectively. A striking rod is fixedly connected to the side of the two sliding rods that are close to each other. A stop block is fixedly connected to the top of the sliding rod near the shaft. A push rod is fixedly connected to the outer surface of the shaft. The top edge of the stop block is a slope.

[0011] Furthermore, a baffle is fixedly connected to the bottom end of the support rod, and the baffle and the protruding rod form a certain angle.

[0012] Furthermore, a rubber pad is fixedly connected to the side of the support rod near the striking rod, and the pad and the striking rod are at the same horizontal line.

[0013] Furthermore, a positioning groove is provided on the outer surface of one of the frame plates, and the portion of the outer surface of each rotating shaft near the gear end slides on the inner wall of the positioning groove.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, a cleaning device is installed at one end of the machine body below the conveyor belt. A continuously rotating shaft is installed thereon. Several cleaning rollers on the outer surface of the shaft contact the bottom surface of the conveyor belt. The hard bristles on the outer surface of the cleaning rollers clean the chocolate crumbs adhering to the outer surface of the conveyor belt, thereby minimizing the adhesion of chocolate crumbs to the outer surface of the conveyor belt and improving the practicality and cleanliness when using the cooling equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the body of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the frame plate of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the cleaning roller of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the baffle of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified three-dimensional structural diagram of point A;

[0022] Figure 7 This is a three-dimensional structural diagram of the shaft of this utility model.

[0023] Legend: 1. Machine body; 2. Cleaning device; 21. Frame plate; 22. Shaft; 23. Second servo motor; 24. Rectangular rod; 25. Rotating shaft; 26. Cleaning roller; 27. Gear; 28. Gear ring; 29. ​​Support rod; 210. Protruding rod; 211. Slide rod; 212. Striking rod; 213. Spring; 214. Stop block; 215. Push rod; 216. Baffle; 217. Positioning groove; 218. Gasket; 3. First servo motor; 4. Rotating roller; 5. Conveyor belt. Detailed Implementation

[0024] Example 1, such as Figure 1-3As shown, a tunnel cooling device for dipping chocolate includes a body 1. Universal wheels are installed on both sides of the bottom of the body 1. A first servo motor 3 is installed on one side of the outer surface of the body 1. Rotary rollers 4 are rotatably connected to both ends of the body 1. A conveyor belt 5 is fitted onto the outer surface of the rollers 4. The output end of the first servo motor 3 is connected to one end of a roller 4 via a reducer. A condenser, an evaporator, and a cooling fan are installed inside the body 1. The cooling fan is located inside the body 1 on both sides at the top of the conveyor belt 5. A cleaning device 2 is installed on one end of the outer surface of the body 1 to clean the outer surface of the conveyor belt 5. When using the tunnel cooling device to cool the chocolate-dipped food, the chocolate-dipped food is placed on the outer surface of the conveyor belt 5. The first servo motor 3 and the evaporator, condenser, and cooling fan inside the body 1 are controlled by a control box outside the body 1. The operation of the first servo motor 3 drives a roller 4 to rotate through its output end and the reducer. 4. The conveyor belt 5 is moved so that the food above the conveyor belt 5 enters the machine body 1. The compressor inside the machine body 1 serves as the power source, drawing in the low-temperature, low-pressure gaseous refrigerant flowing out of the evaporator. After mechanical compression, it is converted into a high-temperature, high-pressure gaseous refrigerant. Subsequently, the high-temperature, high-pressure gaseous refrigerant enters the condenser, where it releases heat under the action of the cooling fan or cooling water, condensing into a room-temperature, high-pressure liquid refrigerant. Then, the room-temperature, high-pressure liquid refrigerant flows through the throttling valve to achieve pressure and temperature reduction, converting into a low-temperature, low-pressure mist refrigerant. The mist refrigerant enters the evaporator, absorbs the heat of the air in the cooling tunnel and vaporizes, cooling the air to form a low-temperature cold air. The cooling fans located on both sides of the top of the conveyor belt 5 draw the low-temperature cold air into the main air duct, and evenly deliver it to the chocolate coating on the conveyor belt 5 through the air distribution holes. After exchanging heat with the chocolate, the slightly warmed air flows back to the evaporator through the return air port for further cooling. The vaporized refrigerant then flows back to the compressor, completing the closed loop of the refrigeration cycle. The cooled food is then output through the other end of the conveyor belt 5.

[0025] Reference Figure 1-7As shown in this embodiment: the cleaning device 2 includes two frame plates 21. One end of each frame plate 21 is fixedly connected to one side of the machine body 1. A shaft 22 is rotatably connected to the side of the two frame plates 21 that is close to each other. Several rectangular rods 24 are fixedly connected to the outer circumference of the shaft 22. A rotating shaft 25 is rotatably connected to the top of the two rectangular rods 24. A cleaning roller 26 is fixedly connected to the outer surface of the rotating shaft 25. Several hard bristles are arranged on the outer circumference of the cleaning roller 26. A second servo motor 23 is arranged on one side of one frame plate 21. The output end of the second servo motor 23 is connected via a coupling. The device is fixedly connected to one end of the shaft 22. By setting the cleaning roller 26, when using the cooling equipment, the second servo motor 23 on one side of the frame plate 21 can be operated. The shaft 22 is driven to rotate away from the machine body 1 through the coupling at the output end of the second servo motor 23. When the shaft 22 rotates, a cleaning roller 26 on the outer surface will rotate to the bottom of the conveyor belt 5. When the cleaning roller 26 contacts the bottom surface of the conveyor belt 5, it will scrape the chocolate attached to the bottom surface of the conveyor belt 5 away from the outer surface of the conveyor belt 5, so as to avoid the chocolate paste adhering and accumulating on the outer surface of the conveyor belt 5 as much as possible.

[0026] Reference Figure 2-7 As shown in this embodiment: a gear 27 is fixedly connected to one end of the rotating shaft 25, and a gear ring 28 is fixedly connected to one side of a frame plate 21. The outer surface of the gear 27 meshes with the inner wall of the gear ring 28. When the second servo motor 23 drives the shaft 22 to rotate, the gear 27 at one end of the rotating shaft 25 will rotate on the inner wall of the gear ring 28, causing the rotating shaft 25 to rotate on its own axis as it follows the shaft 22. When the rotating cleaning roller 26 contacts the bottom surface of the conveyor belt 5, the cleaning effect on the chocolate adhering to the outer surface of the conveyor belt 5 is improved. Ideally, a support rod 29 is fixedly connected to one side of each of the two support plates 21, and several protruding rods 210 are fixedly connected to one side of each support rod 29. The protruding rods 210 are arranged linearly on one side of the support rod 29. When the shaft 22 drives the rotating shaft 25 at one end of the rectangular rod 24 to rotate, the cleaning roller 26 approaches the support rod 29, and the hard bristles on the outer surface of the cleaning roller 26 will contact the protruding rods 210 on one side of the support rod 29. This causes the hard bristles of the cleaning roller 26 to contact the protruding rods 210 in an alternating manner, scraping off chocolate crumbs and other debris attached to the hard bristles of the cleaning roller 26.

[0027] Reference Figure 2-7As shown in this embodiment: Sliding rods 211 are slidably connected to one side of the inner wall of each of the two frame plates 21. A spring 213 is provided at one end of each sliding rod 211. The two ends of the spring 213 are fixedly connected to one end of the sliding rod 211 and one side of the inner wall of the frame plate 21, respectively. A striking rod 212 is fixedly connected to the side of the two sliding rods 211 that are close to each other. A stop block 214 is fixedly connected to the top of the sliding rod 211 near the shaft 22. A push rod 215 is fixedly connected to the outer surface of the shaft 22. The top edge of the stop block 214 is inclined. By setting the stop block 214 and the push rod 212… 15. When the shaft 22 rotates, when one end of the push rod 215 on the outer surface enters the outer surface of the stop 214 at the top of the slide rod 211, it will push the stop 214 to control the slide rod 211 and the striking rod 212 to move away from the body 1 and stretch the spring 213. After the shaft 22 continues to rotate and the push rod 215 moves away from the outer surface of the stop 214, the stretched spring 213 returns to its original state and pulls the slide rod 211 to move towards the frame plate 21 again, so that one end of the striking rod 212 hits the back side of the support rod 29 and knocks off the chocolate crumbs and other debris attached to the outer surface of the support rod 29 and the protruding rod 210.

[0028] Reference Figure 2-7 As shown in this embodiment: a baffle 216 is fixedly connected to the bottom end of the support rod 29. The baffle 216 and the protruding rod 210 form a certain angle. When the shaft 22 drives the cleaning roller 26 to rotate, chocolate crumbs that detach from the surface of the cleaning roller 26 due to centrifugal force are blocked by the baffle 216, preventing chocolate crumbs from splashing outward. A rubber pad 218 is fixedly connected to the side of the support rod 29 near the striking rod 212. The pad 218 and the striking rod 212 are on the same horizontal line. By setting the rubber pad 218, the striking rod 212 can move back and forth against the outer surface of the support rod 29. When the rubber pad 218 contacts and strikes the support rod 29, it is not easy to produce a loud noise. A positioning groove 217 is provided on the outer surface of a frame plate 21. The part of the outer surface of each rotating shaft 25 near the gear 27 slides on the inner wall of the positioning groove 217. When the second servo motor 23 drives the shaft 22 to rotate, the part of the rotating shaft 25 at one end of each rectangular rod 24 near the gear 27 will slide on the inner wall of the positioning groove 217. The positioning groove 217 can further limit the angle between the rotating shaft 25 and the rectangular rod 24 and the gear ring 28, and avoid the angle of the rotating shaft 25 from deflecting as much as possible.

[0029] Working Principle: When using the tunnel cooling equipment to cool chocolate-coated food, the chocolate-coated food is placed on the outer surface of the conveyor belt 5. The control box outside the machine body 1 controls the operation of the first servo motor 3 and the evaporator, condenser, and cooling fan inside the machine body 1. The operation of the first servo motor 3 drives a rotating roller 4 through its output end and reducer. The rotating roller 4 drives the conveyor belt 5 to move, causing the food above the conveyor belt 5 to enter the machine body 1. The compressor inside the machine body 1 acts as a power source, drawing in the low-temperature, low-pressure gaseous refrigerant flowing out of the evaporator and mechanically compressing it into a high-temperature, high-pressure gaseous refrigerant. Subsequently, the high-temperature, high-pressure gaseous refrigerant enters the condenser, where it is cooled by the cooling fan or cooling water. The refrigerant releases heat and condenses into a room-temperature, high-pressure liquid refrigerant. This liquid refrigerant then flows through a throttling valve to reduce pressure and temperature, transforming into a low-temperature, low-pressure mist refrigerant. The mist refrigerant enters the evaporator, absorbs heat from the air in the cooling tunnel, and vaporizes, cooling the air to form low-temperature cold air. Cooling fans located on both sides of the top of conveyor belt 5 draw this cold air into the main air duct and distribute it evenly through air distribution holes to the chocolate coating on conveyor belt 5. The air, slightly heated after exchanging heat with the chocolate, flows back to the evaporator through the return air vent for further cooling. The vaporized refrigerant then flows back to the compressor, completing the closed-loop refrigeration cycle. The cooled food is then output through the other end of conveyor belt 5. Simultaneously, the second servo motor 23 on one side of the support plate 21 can be operated. The coupling at the output end of the second servo motor 23 drives the shaft 22 to rotate away from the machine body 1. When the shaft 22 rotates, a cleaning roller 26 on its outer surface will rotate to the bottom of the conveyor belt 5. When the shaft 22 rotates, the gear 27 at one end of the rotating shaft 25 will rotate on the inner wall of the gear ring 28, causing the rotating shaft 25 to rotate on its own as it follows the shaft 22. When the rotating cleaning roller 26 contacts the bottom surface of the conveyor belt 5, it will scrape the chocolate adhering to the bottom surface of the conveyor belt 5 away from the outer surface of the conveyor belt 5, minimizing the adhesion of chocolate crumbs to the outer surface of the conveyor belt 5. When the cleaning roller 26 is close to the support rod 29, the hard bristles on the outer surface of the cleaning roller 26 will contact the protrusion 210 on one side of the support rod 29. When the shaft 22 rotates, the hard bristles of the cleaning roller 26 make intermittent contact with the protruding rod 210, scraping off chocolate crumbs and other debris attached to the hard bristles of the cleaning roller 26. In addition, when the shaft 22 rotates, one end of the push rod 215 on the outer surface enters the outer surface of the stop block 214 at the top of the slide rod 211, which pushes the stop block 214 to control the slide rod 211 and the striking rod 212 to move away from the machine body 1 and stretch the spring 213. After the shaft 22 continues to rotate and the push rod 215 moves away from the outer surface of the stop block 214, the stretched spring 213 returns to its original state and pulls the slide rod 211 to move again towards the frame plate 21, causing one end of the striking rod 212 to strike the back side of the support rod 29, knocking off the chocolate crumbs and other debris attached to the outer surface of the support rod 29 and the protruding rod 210.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A tunnel cooling device for dipping chocolate, comprising a body (1), characterized in that: Universal wheels are provided on both sides of the bottom end of the machine body (1). A first servo motor (3) is provided on one side of the outer surface of the machine body (1). Rotary rollers (4) are rotatably connected to both ends of the machine body (1). A conveyor belt (5) is fitted on the outer surface of the rotary roller (4). The output end of the first servo motor (3) is connected to one end of a rotary roller (4) through a reducer. A condenser, an evaporator, and a cooling fan are provided inside the machine body (1). The cooling fan is located inside the machine body (1) on both sides of the top of the conveyor belt (5). A cleaning device (2) is provided on one end of the outer surface of the machine body (1) to clean the outer surface of the conveyor belt (5).

2. The tunnel cooling device for dipping chocolate according to claim 1, characterized in that: The cleaning device (2) includes two frame plates (21). One end of the frame plate (21) is fixedly connected to one side of the machine body (1). The two frame plates (21) are rotatably connected to a shaft (22) on the side close to each other. Several rectangular rods (24) are fixedly connected to the outer circumference of the shaft (22). A rotating shaft (25) is rotatably connected to the top of the two rectangular rods (24). A cleaning roller (26) is fixedly connected to the outer surface of the rotating shaft (25). Several hard bristles are arranged on the outer circumference of the cleaning roller (26). A second servo motor (23) is arranged on one side of one of the frame plates (21). The output end of the second servo motor (23) is fixedly connected to one end of the shaft (22) through a coupling.

3. The tunnel cooling device for dipping chocolate according to claim 2, characterized in that: One end of the rotating shaft (25) is fixedly connected to a gear (27), and one side of the frame plate (21) is fixedly connected to a toothed ring (28). The outer surface of the gear (27) meshes with the inner wall of the toothed ring (28).

4. The tunnel cooling device for dipping chocolate according to claim 3, characterized in that: One side of each of the two frame plates (21) is fixedly connected to a support rod (29), and one side of each support rod (29) is fixedly connected to a plurality of protruding rods (210), which are arranged linearly on one side of the support rod (29).

5. The tunnel cooling device for dipping chocolate according to claim 4, characterized in that: A sliding rod (211) is slidably connected to one side of the inner wall of each of the two frame plates (21). A spring (213) is provided at one end of the sliding rod (211). The two ends of the spring (213) are fixedly connected to one end of the sliding rod (211) and one side of the inner wall of the frame plate (21), respectively. A striking rod (212) is fixedly connected to the side of the two sliding rods (211) that are close to each other. A stop block (214) is fixedly connected to the top of the sliding rod (211) that is close to the shaft (22). A push rod (215) is fixedly connected to the outer surface of the shaft (22). The top edge of the stop block (214) is a slope.

6. The tunnel cooling device for dipping chocolate according to claim 5, characterized in that: The bottom end of the support rod (29) is fixedly connected to a baffle (216), and the baffle (216) and the protruding rod (210) form a certain angle.

7. A tunnel cooling device for dipping chocolate according to claim 6, characterized in that: A rubber pad (218) is fixedly connected to the side of the support rod (29) near the striking rod (212), and the pad (218) and the striking rod (212) are on the same horizontal line.

8. The tunnel cooling device for dipping chocolate according to claim 7, characterized in that: A positioning groove (217) is provided on the outer surface of one of the frame plates (21), and the outer surface of each shaft (25) near the end of the gear (27) slides on the inner wall of the positioning groove (217).

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