Quick-frozen food conveying belt defrosting device

Abstract

The utility model relates to the technical field of defrosting devices, in particular to a defrosting device for a quick-frozen food conveying belt, which is characterized in that an air spraying pipe is directly contacted with the conveying belt for heating and defrosting, and hot air is directly sprayed onto the conveying belt for hot air defrosting, so that the hot air defrosting efficiency is improved; comprising a conveyor belt; the two stand columns are vertically installed on the two sides of the lower portion of the conveying belt, the shaft pipes are installed in the middles of the two ends of the gas spraying pipe, the two shaft pipes are rotationally connected with the two stand columns respectively, the gas spraying pipe presses the lower surface of the conveying belt in a rolling mode, the gas spraying pipe is hollow, and the rotating connector is connected with the rotating connector. A plurality of air outlet holes are formed in the outer portion of the air spraying pipe, the rotating connector is installed on a shaft pipe, the output end of the rotating connector is communicated with the interior of the air spraying pipe through the shaft pipe, the frost receiving groove is installed below the air spraying pipe, the water outlet pipe is installed on the frost receiving groove, and the input end of the water outlet pipe is communicated with the interior of the frost receiving groove.

Description

Technical Field

[0001] This utility model relates to the technical field of defrosting devices, and in particular to a defrosting device for a conveyor belt for quick-frozen food. Background Technology

[0002] Frost can form on conveyor belts used for frozen foods, affecting the quality of the food and the smooth operation of the conveyor belt. Chinese utility model patent CN220624535U discloses an automatic defrosting device for cold storage. This device includes a conveyor belt, a guide rail arranged parallel to the conveyor belt's transport direction below it, a slider slidably connected to the guide rail, a heater fixed to the upper surface of the slider with its exhaust port angled upwards, and a spring arranged parallel to the guide rail, one end of which is fixed to the slider. One end is connected to the guide rail; the other end is fixedly connected to the steel cable; one end of the steel cable is fixedly connected to the slider; the air vent sleeve is fitted onto the exhaust vent of the heater. The air vent sleeve has a fitting part, a duckbill part, and a water baffle on the duckbill part. The duckbill part is flat and has a long strip-shaped exhaust cavity. The exhaust cavity covers the width of the conveyor belt. The water baffle has an arc-shaped part and a folded edge. The arc-shaped part is inclined upward and its projection covers the exhaust cavity. The folded edge is located at the end of the arc-shaped part and is perpendicular to the arc-shaped part.

[0003] The aforementioned defrosting device can spray hot air onto the lower surface of the conveyor belt for comprehensive defrosting. However, the air outlet of the defrosting device does not directly contact the conveyor belt, and the hot air easily diffuses into the space, resulting in a decrease in the efficiency of hot air defrosting. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a defrosting device for quick-frozen food conveyor belts, in which the jet pipe directly contacts the conveyor belt for heating and defrosting, and hot air is directly sprayed onto the conveyor belt for hot air defrosting, thereby improving the efficiency of hot air defrosting.

[0005] This utility model discloses a defrosting device for a conveyor belt used in quick-freezing food production. It includes a conveyor belt, two columns, an air jet pipe, two shaft tubes, a rotary joint, a frost collection trough, and a water outlet pipe. The two columns are vertically installed on both sides below the conveyor belt. Shaft tubes are installed at the middle of both ends of the air jet pipe, and the two shaft tubes are rotatably connected to the two columns. The air jet pipe rolls and presses against the lower surface of the conveyor belt. The air jet pipe is hollow inside and has multiple air outlets on its upper outer surface. The rotary joint is installed on one of the shaft tubes, and its output end communicates with the interior of the air jet pipe through the shaft tube. The frost collection trough is installed below the air jet pipe, and the water outlet pipe is installed on the frost collection trough, with its input end communicating with the interior of the frost collection trough. The input end of the rotary joint is connected to an external hot air blower, and hot air is delivered through the rotary joint and shaft tubes. The air is injected into the jet pipe and sprayed onto the lower surface of the conveyor belt through multiple air outlets. During operation, the conveyor belt rotates to quickly freeze the food, forming frost on its surface. The jet pipe rolls and presses against the lower surface of the conveyor belt, tensioning it. The jet pipe is heated by hot air, allowing it to directly heat the frost on the conveyor belt surface, thus defrosting. Simultaneously, the hot air ejected from the multiple air outlets of the jet pipe directly onto the surface of the conveyor belt for hot air defrosting. Compared to existing technologies, this method involves the jet pipe directly contacting and tensioning the conveyor belt, allowing it to directly heat and defrost it. Furthermore, the hot air is directly sprayed onto the conveyor belt through multiple air outlets, preventing it from easily diffusing into the space and improving the efficiency of hot air defrosting.

[0006] Preferably, it also includes multiple crushing teeth, which are evenly installed on the outer surface of the jet pipe; when the multiple crushing teeth on the surface of the jet pipe press against the conveyor belt, they can crush the frost on the lower surface of the conveyor belt and improve the defrosting efficiency.

[0007] Preferably, it also includes an arc-shaped air-gathering plate, which is installed between two columns. The center of the arc-shaped air-gathering plate is located below the jet pipe, and the two side edges of the arc-shaped air-gathering plate extend beyond the sides of the jet pipe and are close to the lower surface of the conveyor belt. The arc-shaped air-gathering plate surrounds the lower part of the jet pipe, blocks the hot air discharged from the multiple air outlets at the lower part of the jet pipe, and guides the hot air to the conveyor belt, thereby improving the hot air defrosting efficiency.

[0008] Preferably, it also includes two slide rails, two sliders, and a scraper. The two slide rails are installed on the left and right side walls of the frost collection trough, and the two sliders are slidably installed on the two slide rails respectively. The two ends of the scraper are connected to the two sliders respectively, and the scraper is located inside the frost collection trough. The two sliders move back and forth synchronously along the two slide rails, thereby driving the scraper to move back and forth, so that the scraper pushes the frost blocks in the frost collection trough toward the water outlet pipe, and facilitates the discharge of frost water through the water outlet pipe.

[0009] Preferably, it also includes a lever, a push block, and two springs. The lever is mounted on a slider, and the push rod is mounted on the jet pipe. The outer end of the push rod is aligned with the lever and pushes the lever. One end of each of the two springs is connected to a slider, and the other end of each spring is connected to a slide rail. The jet pipe rotates under the drive of the conveyor belt, and the jet pipe drives the push rod to rotate. When the push rod rotates to the lower part of the jet pipe, it pushes the lever towards the water outlet pipe, causing the lever to drive the slider to move along the slide rail, thereby driving the scraper to push the frost blocks in the frost collection groove. When the push rod disengages from the lever, the elastic force of the two springs pulls the two sliders back to their original positions, thereby causing the scraper to move back and forth, which is practical.

[0010] Preferably, the device also includes a scraper and a spring plate. The lower end of the scraper is hinged to the side wall of the frost-collecting trough, the upper end of the spring plate is connected to the scraper, and the lower end of the spring plate is connected to the frost-collecting trough. The elastic force of the spring plate causes the upper end of the scraper to scrape the lower surface of the conveyor belt. The scraper is located in front of the air jet pipe. The conveyor belt that has been defrosted by the air jet pipe is conveyed to the scraper, so that under the action of the elastic force of the spring plate, the upper end of the scraper scrapes the lower surface of the conveyor belt, thereby scraping off the frost remaining on the lower surface of the conveyor belt and improving the defrosting efficiency.

[0011] Preferably, it also includes an ultraviolet lamp, which is installed on the outer surface of the scraper; the ultraviolet lamp sterilizes the lower surface of the conveyor belt that has been scraped by the scraper, thereby improving the hygiene of the frozen food.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the jet pipe directly contacts the conveyor belt and tensions the conveyor belt, so that the jet pipe directly heats and defrosts the conveyor belt, and the hot air is directly sprayed onto the conveyor belt through multiple air outlets of the jet pipe for hot air defrosting. The hot air is not easy to diffuse into the space, thus improving the efficiency of hot air defrosting. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side sectional view of the present invention;

[0015] Figure 3 It is a structural diagram of the column, jet pipe, shaft pipe, rotary joint, frost collection groove, water outlet pipe and arc-shaped air-gathering plate, etc.

[0016] Figure 4 It is a structural diagram of the column, jet pipe, shaft tube, rotary joint, crushing teeth and arc-shaped air-gathering plate, etc.

[0017] Figure 5 It is a structural diagram of components such as jet pipe, shaft tube, rotary joint, slide rail, slider, scraper, lever, lever and spring;

[0018] Figure 6 It is a structural diagram of components such as scrapers, spring plates, and ultraviolet lamps.

[0019] The following are labels in the attached diagram: 1. Conveyor belt; 2. Column; 3. Jet pipe; 4. Shaft tube; 5. Rotary joint; 6. Frost trough; 7. Water outlet pipe; 8. Crushing teeth; 9. Arc-shaped air-gathering plate; 10. Slide rail; 11. Slider; 12. Scraper; 13. Toggle block; 14. Toggle lever; 15. Spring; 16. Scraper; 17. Spring plate; 18. Ultraviolet lamp. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 4 As shown, a defrosting device for a frozen food conveyor belt includes a conveyor belt 1; it also includes two columns 2, an air jet pipe 3, two shaft tubes 4, a rotary joint 5, a frost collection trough 6, and a water outlet pipe 7. The two columns 2 are vertically installed on both sides below the conveyor belt 1. The shaft tubes 4 are installed at the middle of both ends of the air jet pipe 3. The two shaft tubes 4 are rotatably connected to the two columns 2 respectively. The air jet pipe 3 rolls and presses against the lower surface of the conveyor belt 1. The air jet pipe 3 is hollow inside and has multiple air outlets on its outer upper surface. The rotary joint 5 is installed on one of the shaft tubes 4. The output end of 5 is connected to the interior of the jet pipe 3 through the shaft tube 4. The frost collection groove 6 is installed below the jet pipe 3. The water outlet pipe 7 is installed on the frost collection groove 6. The input end of the water outlet pipe 7 is connected to the interior of the frost collection groove 6. It also includes multiple crushing teeth 8. Multiple crushing teeth 8 are evenly installed on the outer surface of the jet pipe 3. It also includes an arc-shaped air-gathering plate 9. The arc-shaped air-gathering plate 9 is installed between two columns 2. The middle part of the arc-shaped air-gathering plate 9 is located below the jet pipe 3. The two side edges of the arc-shaped air-gathering plate 9 extend out of the sides of the jet pipe 3 and are close to the lower surface of the conveyor belt 1.

[0022] The input end of the rotary joint 5 is connected to an external hot air blower. Hot air is input into the jet pipe 3 through the rotary joint 5 and the shaft tube 4, and is sprayed onto the lower surface of the conveyor belt 1 through multiple air outlets of the jet pipe 3. During operation, the conveyor belt 1 rotates to quickly freeze the food. During quick freezing, frost forms on the surface of the conveyor belt 1. The jet pipe 3 rolls and presses against the lower surface of the conveyor belt 1, tensioning the conveyor belt 1. When the multiple crushing teeth 8 on the surface of the jet pipe 3 press against the conveyor belt 1, the multiple crushing teeth 8 crush the frost on the lower surface of the conveyor belt 1. The jet pipe 3 is heated by the hot air, so that the jet pipe 3 directly heats the frost on the surface of the conveyor belt 1, thereby defrosting. Meanwhile, the hot air ejected from the multiple air outlets of the jet pipe 3 is directly sprayed onto the surface of the conveyor belt 1 for hot air defrosting. The arc-shaped air-gathering plate 9 surrounds the lower part of the jet pipe 3, shielding the hot air discharged from the multiple air outlets at the lower part of the jet pipe 3 and guiding the hot air toward the conveyor belt 1. Compared with the prior art, the jet pipe 3 directly contacts the conveyor belt 1 and tensions the conveyor belt 1, so that the jet pipe 3 directly heats and defrosts the conveyor belt 1. Moreover, the hot air is directly sprayed onto the conveyor belt 1 through the multiple air outlets of the jet pipe 3 for hot air defrosting, and the hot air is not easily diffused into the space, thus improving the hot air defrosting efficiency. Example 2

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, based on Embodiment 1, it also includes two slide rails 10, two sliders 11, and a scraper 12. The two slide rails 10 are installed on the left and right side walls of the frost collection groove 6, and the two sliders 11 are slidably installed on the two slide rails 10 respectively. The two ends of the scraper 12 are respectively connected to the two sliders 11, and the scraper 12 is located inside the frost collection groove 6. It also includes a toggle block 13, a lever 14, and two springs 15. The toggle block 13 is installed on one slider 11, and the lever 14 is installed on the jet pipe 3. The outer end of the lever 14 is aligned with the toggle block 13 and moves the toggle block 13. One end of the two springs 15 is connected to the two sliders 11 respectively, and the other end of the two springs 15 is connected to the two slide rails 10 respectively.

[0024] The jet pipe 3 rotates under the drive of the conveyor belt 1, and the jet pipe 3 drives the lever 14 to rotate. When the lever 14 rotates to the lower part of the jet pipe 3, it moves the lever 13 towards the water outlet pipe 7, so that the lever 13 drives the slider 11 to move along the slide rail 10, thereby driving the scraper 12 to push the frost blocks in the frost collection groove 6. When the lever 14 disengages from the lever 13, the elastic force of the two springs 15 pulls the two sliders 11 back to their original position, thereby causing the scraper 12 to move back and forth, so that the scraper 12 pushes the frost blocks in the frost collection groove 6 towards the water outlet pipe 7, and facilitates the discharge of frost water through the water outlet pipe 7, which is practical. Example 3

[0025] like Figure 1 , Figure 2and Figure 6 As shown, based on Embodiment 1, it also includes a scraper 16 and a spring plate 17. The lower end of the scraper 16 is hinged to the side wall of the frosting groove 6, the upper end of the spring plate 17 is connected to the scraper 16, and the lower end of the spring plate 17 is connected to the frosting groove 6. The elasticity of the spring plate 17 causes the upper end of the scraper 16 to scrape the lower surface of the conveyor belt 1. The scraper 16 is located in front of the jet pipe 3. It also includes an ultraviolet lamp 18, which is installed on the outer surface of the scraper 16.

[0026] The conveyor belt 1, after being defrosted by the jet pipe 3, is conveyed to the scraper 16. Under the elastic force of the spring plate 17, the upper end of the scraper 16 scrapes the lower surface of the conveyor belt 1, thereby scraping off the frost remaining on the lower surface of the conveyor belt 1 and improving the defrosting efficiency. The ultraviolet lamp 18 sterilizes the lower surface of the conveyor belt 1 after being scraped by the scraper 16, thereby improving the hygiene of the frozen food.

[0027] like Figures 1 to 6 As shown, this utility model discloses a defrosting device for a quick-frozen food conveyor belt. During operation, the conveyor belt 1 rotates to quickly freeze the food, forming frost on its surface. The jet pipe 3 rolls and presses against the lower surface of the conveyor belt 1, tensioning it. Then, the jet pipe 3 is heated by hot air, directly heating the frost on the conveyor belt 1 surface, thus defrosting. Simultaneously, hot air from multiple outlets of the jet pipe 3 is directly sprayed onto the surface of the conveyor belt 1 for hot air defrosting. An arc-shaped air-gathering plate 9 surrounds the lower part of the jet pipe 3, blocking the hot air from the multiple outlets and guiding it towards the conveyor belt 1, improving the hot air defrosting efficiency. During the defrosting process, the jet pipe 3 rotates under the drive of the conveyor belt 1, spraying... Pipe 3 drives lever 14 to rotate. When lever 14 rotates to the lower part of jet pipe 3, it moves block 13 towards water outlet pipe 7, causing block 13 to move slider 11 along slide rail 10, thereby driving scraper 12 to push the frost blocks in frost collection groove 6. When lever 14 disengages from block 13, the elastic force of two springs 15 pulls the two sliders 11 back to their original position, causing scraper 12 to move back and forth, pushing the frost blocks in frost collection groove 6 towards water outlet pipe 7, and facilitating the discharge of frost water through water outlet pipe 7. Finally, the conveyor belt 1 that defrosts through jet pipe 3 is conveyed to scraper 16, so that under the elastic force of spring plate 17, the upper end of scraper 16 scrapes the lower surface of conveyor belt 1, thereby scraping off the frost remaining on the lower surface of conveyor belt 1.

[0028] The main functions achieved by this utility model are:

[0029] 1. The jet pipe 3 is in direct contact with the conveyor belt 1 and tensions the conveyor belt 1, so that the jet pipe 3 directly heats and defrosts the conveyor belt 1. The hot air is directly sprayed onto the conveyor belt 1 through multiple air outlets of the jet pipe 3 for hot air defrosting. The hot air is not easily diffused into the space, thus improving the efficiency of hot air defrosting.

[0030] 2. The arc-shaped air-gathering plate 9 blocks the hot air discharged from multiple air outlets at the bottom of the jet pipe 3 and guides the hot air toward the conveyor belt 1, thereby improving the hot air defrosting efficiency.

[0031] 3. It can promote the efficient discharge of frost water from the frost blocks;

[0032] 4. It can scrape and sterilize conveyor belt 1.

[0033] The defrosting device for a quick-frozen food conveyor belt of this utility model uses common mechanical methods for installation, connection, or setting. Any method that can achieve the desired beneficial effect can be implemented. The conveyor belt 1, air jet pipe 3, shaft tube 4, rotary joint 5, frost collection groove 6, slide rail 10, slider 11, scraper 12, spring 15, scraper 16, spring plate 17, and ultraviolet lamp 18 of the defrosting device for a quick-frozen food conveyor belt of this utility model are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0034] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A defrosting device for a conveyor belt of quick-frozen food, comprising a conveyor belt (1); characterized in that, It also includes two columns (2), a jet pipe (3), two shaft tubes (4), a rotary joint (5), a frosting trough (6), and a water outlet pipe (7). The two columns (2) are vertically installed on both sides below the conveyor belt (1). The shaft tubes (4) are installed at the middle of both ends of the jet pipe (3). The two shaft tubes (4) are rotatably connected to the two columns (2) respectively. The jet pipe (3) rolls and presses the lower surface of the conveyor belt (1). The inside of the jet pipe (3) is hollow. Multiple air outlet holes are provided on the upper part of the jet pipe (3). The rotary joint (5) is installed on a shaft tube (4). The output end of the rotary joint (5) is connected to the inside of the jet pipe (3) through the shaft tube (4). The frosting trough (6) is installed below the jet pipe (3). The water outlet pipe (7) is installed on the frosting trough (6). The input end of the water outlet pipe (7) is connected to the inside of the frosting trough (6).

2. The defrosting device for a quick-frozen food conveyor belt as described in claim 1, characterized in that, It also includes multiple breaking teeth (8), and multiple breaking teeth (8) are uniformly installed on the outer surface of the jet pipe (3).

3. The defrosting device for a quick-frozen food conveyor belt as described in claim 1, characterized in that, It also includes an arc-shaped air-gathering plate (9), which is installed between two columns (2). The middle part of the arc-shaped air-gathering plate (9) is located below the jet pipe (3), and the two sides of the arc-shaped air-gathering plate (9) extend out of the sides of the jet pipe (3) and are close to the lower surface of the conveyor belt (1).

4. The defrosting device for a quick-frozen food conveyor belt as described in claim 1, characterized in that, It also includes two slide rails (10), two sliders (11) and a scraper (12). The two slide rails (10) are installed on the left and right side walls of the frost collection groove (6). The two sliders (11) are slidably installed on the two slide rails (10) respectively. The two ends of the scraper (12) are connected to the two sliders (11) respectively. The scraper (12) is located inside the frost collection groove (6).

5. A defrosting device for a quick-frozen food conveyor belt as described in claim 4, characterized in that, It also includes a lever (13), a lever (14) and two springs (15). The lever (13) is mounted on a slider (11), and the lever (14) is mounted on the jet pipe (3). The outer end of the lever (14) is aligned with the lever (13) and moves the lever (13). One end of each of the two springs (15) is connected to the two sliders (11), and the other end of each spring (15) is connected to the two slide rails (10).

6. The defrosting device for a quick-frozen food conveyor belt as described in claim 1, characterized in that, It also includes a scraper (16) and a spring plate (17). The lower end of the scraper (16) is hinged to the side wall of the frost collection groove (6). The upper end of the spring plate (17) is connected to the scraper (16), and the lower end of the spring plate (17) is connected to the frost collection groove (6). The elasticity of the spring plate (17) causes the upper end of the scraper (16) to scrape the lower surface of the conveyor belt (1). The scraper (16) is located in front of the jet pipe (3).

7. A defrosting device for a quick-frozen food conveyor belt as described in claim 6, characterized in that, It also includes an ultraviolet lamp (18), which is mounted on the outer surface of the scraper (16).

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