A preservative paper spraying device
By introducing interception and collection components into the food preservation paper spraying equipment, the problem of paraffin oil splattering was solved, enabling the effective utilization of paraffin oil and the clean operation of the equipment, reducing costs and ensuring food safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG ACADEMY OF FORESTRY SCI
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-14
AI Technical Summary
In existing spraying equipment, paraffin oil is prone to splashing onto the conveyor belt and equipment parts, causing waste and pollution, and affecting equipment operation and food safety.
A food preservation paper spraying device has been designed, equipped with interception and collection components, including an interception plate and a collection box, for intercepting excess paraffin oil sprayed from the nozzle and preventing it from splashing onto the conveyor belt and other parts of the device.
It reduces paraffin oil consumption and equipment contamination, lowers production and maintenance costs, improves resource utilization, and ensures normal equipment operation and food safety.
Smart Images

Figure CN224494744U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of food preservation paper processing technology, specifically relating to a food preservation paper spraying equipment. Background Technology
[0002] Cling film plays an indispensable role in many fields, including modern food packaging, logistics, and agricultural preservation. In food packaging, cling film comes into direct contact with food, effectively blocking the intrusion of external air, moisture, and microorganisms, slowing down the oxidation and spoilage process, thus extending shelf life and maintaining freshness and taste. For example, in the packaging of fresh foods such as fruits, vegetables, and meats, cling film prevents moisture loss, avoids drying out, inhibits bacterial growth, and reduces the possibility of spoilage.
[0003] Paraffin oil, a commonly used preservative, possesses excellent sealing, waterproofing, and stability. Spraying paraffin oil onto the surface of cling film forms a uniform, dense protective film. This film effectively prevents oxygen, moisture, and other harmful gases from contacting the food, thus slowing down oxidation and moisture loss, achieving the goal of preservation.
[0004] In existing spraying equipment, the paraffin oil sprayed from the nozzles can easily splatter onto the conveyor belt and other equipment parts during the spraying process. This not only wastes the paraffin oil and increases production costs, but also pollutes the equipment. Long-term accumulation of paraffin oil can attract dust and impurities, affecting the normal operation of the equipment, and may even breed bacteria, polluting the food packaging environment and thus affecting food safety. Utility Model Content
[0005] The purpose of this invention is to provide a food preservation paper spraying device to solve the problems mentioned in the background art.
[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0007] A food preservation paper spraying device includes a conveyor belt, and a spraying mechanism is provided in the middle of the conveyor belt;
[0008] The spraying mechanism includes a housing installed in the middle of the conveyor belt, an atomizing pump installed in the middle of the upper end of the housing, the input end of the atomizing pump being connected to a storage tank through a pipe, a spray nozzle being provided inside the housing, the output end of the atomizing pump being connected to the spray nozzle through a pipe, and collection components being provided on both the front and rear sides of the housing.
[0009] The collection assembly includes interceptor plates that are slidably disposed on the front and rear sides of the housing, a movable component between the interceptor plates and the housing, and a collection box at the bottom of the interceptor plates, the bottom of the collection box being in contact with the surface of the conveyor belt.
[0010] The movable component includes fixed plates at the front and rear ends of the housing, a rotating shaft is rotatably mounted between the two fixed plates, a first handle is connected to the front end of the rotating shaft, threaded sections are machined on both the front and rear sides of the rotating shaft, and a sliding plate is threaded to each of the two threaded sections. A connecting rod connected to the interceptor plate is fixed to the sliding plate.
[0011] A sliding rod is fixed between the two fixed plates, and the sliding plate is slidably connected to the sliding rod.
[0012] The bottom of the interceptor plate is provided with a T-shaped mounting groove, and the upper end of the collection box is provided with a T-shaped mounting strip that matches the T-shaped mounting groove.
[0013] The upper side of the housing has a threaded hole, and a screw is threaded into the threaded hole. The lower end of the screw is rotatably connected to the nozzle. A second handle is fixed to the upper end of the screw. A limiting rod is slidably provided on the upper side of the housing, and the lower end of the limiting rod is connected to the nozzle.
[0014] A door is provided on the left side of the housing.
[0015] This device is equipped with a complete interception and collection component, which can effectively intercept excess paraffin oil sprayed from the nozzle and prevent it from splashing onto the conveyor belt and other parts of the equipment. This design reduces paraffin oil loss, lowers raw material costs, and improves resource utilization.
[0016] By reducing the contamination of equipment by paraffin oil, avoiding the long-term accumulation of paraffin oil that attracts dust and impurities and breeds bacteria, the probability of equipment failure due to contamination is reduced, and the frequency and difficulty of equipment maintenance and cleaning are reduced, thereby lowering the maintenance cost of the equipment. Attached Figure Description
[0017] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of a food preservation paper spraying device according to the present invention;
[0019] Figure 2 This is a side cross-sectional view of an embodiment of a food preservation paper spraying device according to the present invention;
[0020] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0021] The symbols for the main components are explained below:
[0022] 1. Conveyor belt, 11. Housing, 12. Atomizing pump, 13. Nozzle, 2. Interceptor plate, 201. T-shaped mounting groove, 21. Collection box, 211. T-shaped mounting strip, 22. Fixing plate, 23. Rotating shaft, 231. First handle, 24. Threaded section, 25. Slide plate, 26. Connecting rod, 27. Screw, 3. Second handle, 31. Limiting rod, 32. Box door. Detailed Implementation
[0023] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] like Figure 1-3 As shown, the present invention provides a food preservation paper spraying device, which includes a conveyor belt 1 and a spraying mechanism in the middle of the conveyor belt 1.
[0025] The spraying mechanism includes a housing 11 installed in the middle of the conveyor belt 1. An atomizing pump 12 is installed in the middle of the upper end of the housing 11. The input end of the atomizing pump 13 is connected to the storage tank through a pipe. A nozzle 13 is provided inside the housing 11. The output end of the atomizing pump 13 is connected to the nozzle 3 through a pipe. Collection components are provided on both the front and rear sides of the housing 11.
[0026] The collection assembly includes a housing 11 with interceptor plates 2 slidably disposed on the front and rear sides of the housing 11, a movable part between the interceptor plates 2 and the housing 11, and a collection box 21 disposed at the bottom of the interceptor plates 2, with the bottom of the collection box 21 in contact with the surface of the conveyor belt 1.
[0027] The storage tank contains paraffin oil. The two intercepting plates 2 can be adjusted according to the width of the cling film. The paraffin oil sprayed from the nozzle 13 can be intercepted by the intercepting plates 2 on both the front and rear sides, preventing the paraffin oil from falling onto the surface of the conveyor belt 1.
[0028] The movable component includes fixed plates 22 fixed at the front and rear ends of the housing 11, a rotating shaft 23 rotatably mounted between the two fixed plates 22, a first handle 231 connected to the front end of the rotating shaft 23, threaded sections 24 machined on both the front and rear sides of the rotating shaft 23, and a sliding plate 25 threadedly connected to both threaded sections 24, and a connecting rod 26 connected to the interceptor plate 2 fixed to the sliding plate 25.
[0029] A slide bar 27 is fixed between the two fixed plates 22, and the slide plate 25 is slidably connected to the slide bar 27.
[0030] The bottom of the interceptor plate 2 is provided with a T-shaped mounting groove 201, and the upper end of the collection box 21 is provided with a T-shaped mounting strip 211 that matches the T-shaped mounting groove 201.
[0031] A threaded hole is provided on the upper side of the housing 11, and a screw 3 is threadedly connected to the threaded hole. The lower end of the screw 3 is rotatably connected to the nozzle 13. A second handle 31 is fixed on the upper end of the screw 3. A limiting rod 32 is slidably provided on the upper side of the housing 11, and the lower end of the limiting rod 32 is connected to the nozzle 13.
[0032] A door 4 is provided on the left side of the casing 11.
[0033] Conveyor belt 1 is the basic conveying component of the equipment, used to continuously transport the cling film to be sprayed. The cling film is laid flat on the surface of conveyor belt 1 and moves into the spraying area with the conveyor belt 1 for paraffin oil spraying.
[0034] Housing 11: Serving as the main frame of the spraying mechanism, it is installed in the middle of the conveyor belt 1, providing mounting support for other components. The housing 11 has threaded holes on its upper side and a door 4 on its left side for easy inspection and maintenance of internal components.
[0035] Atomizing pump 12: Installed in the middle of the upper part of the housing 11, its input end is connected to the storage tank through a pipe. The function of atomizing pump 12 is to atomize the paraffin oil in the storage tank, so that it forms fine droplets, which are easy to spray evenly on the surface of the cling film.
[0036] Nozzle 13: Located inside housing 11, it is connected to the output end of atomizing pump 12. Nozzle 13 sprays atomized paraffin oil onto the cling film on conveyor belt 1, achieving the spraying function. The height of nozzle 13 can be adjusted by an adjustment mechanism to accommodate the spraying needs of cling film of different thicknesses.
[0037] Adjustment Mechanism: A screw 3 is threaded into a threaded hole on the upper side of the housing 11. The lower end of the screw 3 is rotatably connected to the nozzle 13, and a second handle 31 is fixed to the upper end of the screw 3. By rotating the second handle 31, the screw 3 can be moved up and down within the threaded hole, thereby adjusting the height of the nozzle 13. At the same time, a limiting rod 32 is slidably provided on the upper side of the housing 11. The lower end of the limiting rod 32 is connected to the nozzle 13, and the limiting rod 32 restricts the rotation of the nozzle 13, ensuring the stability of the nozzle 13 during its up and down movement.
[0038] The collection components are located on the front and rear sides of the housing 11 to intercept excess paraffin oil sprayed from the nozzle 13, preventing it from falling onto the surface of the conveyor belt 1 and causing contamination. The specific structure is as follows:
[0039] Interceptor plate 2: Slidingly mounted on both the front and rear sides of the housing 11, it can be adjusted according to the width of the cling film to accommodate spraying operations of cling film of different sizes. The function of interceptor plate 2 is to intercept the paraffin oil sprayed from the nozzle 13 and prevent it from spreading outward.
[0040] Movable component: Used to realize the movement and adjustment of the interceptor plate 2, the specific structure is as follows:
[0041] Fixed plate 22: Fixed at both ends of the housing 11 to provide mounting support for the rotating shaft 23.
[0042] Rotating shaft 23: Rotatably mounted between two fixed plates 22. A first handle 231 is connected to the front end of the rotating shaft 23. Rotating the first handle 231 can drive the rotating shaft 23 to rotate. Threaded sections 24 are machined on both the front and rear sides of the rotating shaft 23, and the threads of the two threaded sections 24 are in opposite directions.
[0043] Slide plate 25: Both threaded sections 24 are threadedly connected to slide plates 25, and a connecting rod 26 connected to the interceptor plate 2 is fixed on the slide plate 25. When the rotating shaft 23 rotates, since the threads of the two threaded sections 24 are in opposite directions, the two slide plates 25 will move in opposite directions at the same time, thereby driving the interceptor plate 2 to move and realizing the adjustment function of the interceptor plate 2.
[0044] Slide bar 27: Fixed between two fixed plates 22, slide bar 27 is slidably connected to slide bar 27. Slide bar 27 restricts the rotation of slide bar 25, ensuring that slide bar 25 can only move in a straight line along slide bar 27.
[0045] Collection box 21: Located at the bottom of interceptor plate 2, with its bottom in contact with the surface of conveyor belt 1. Collection box 21 is used to collect paraffin oil intercepted by interceptor plate 2, preventing paraffin oil from dripping. A T-shaped mounting groove 201 is provided at the bottom of interceptor plate 2, and a T-shaped mounting strip 211 matching the T-shaped mounting groove 201 is installed at the upper end of collection box 21. Through the cooperation of the T-shaped mounting groove 201 and the T-shaped mounting strip 211, collection box 21 can be easily installed and removed, facilitating the cleaning of paraffin oil inside collection box 21.
[0046] The storage tank is used to store paraffin oil and is connected to the input of the atomizing pump 12 via a pipe to provide paraffin oil raw material for the spraying operation. The paraffin oil stored in the storage tank is atomized by the atomizing pump 12 and then sprayed out by the nozzle 13.
[0047] The working principle of this application is as follows:
[0048] Lay the plastic wrap to be sprayed flat on the conveyor belt 1. Adjust the position of the interceptor plate 2 by rotating the first handle 231 according to the width of the plastic wrap, so that the interceptor plate 2 can effectively intercept excess paraffin oil. At the same time, adjust the height of the spray head 13 by rotating the second handle 31 according to the thickness and width of the plastic wrap, so as to ensure that the distance between the spray head 13 and the plastic wrap is appropriate.
[0049] Turn on conveyor belt 1 to move the cling film into the spraying area. At the same time, start atomizing pump 12 to atomize the paraffin oil in the storage tank and spray the atomized paraffin oil evenly onto the surface of the cling film through nozzle 13.
[0050] During the spraying process, excess paraffin oil sprayed from the nozzle 13 will be intercepted by the interceptor plates 2 on both the front and rear sides and flow into the collection box 21 to prevent paraffin oil from falling onto the surface of the conveyor belt 1.
[0051] After the cling film has finished spraying and left the spraying area, turn off the atomizing pump 12 and the conveyor belt 1 to complete one spraying operation; clean the paraffin oil in the collection box 21 regularly to ensure the normal operation of the equipment.
[0052] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A coating device for food preservation paper, comprising a conveyor belt, characterized in that: A spraying mechanism is provided in the middle of the conveyor belt; The spraying mechanism includes a housing installed in the middle of the conveyor belt, an atomizing pump installed in the middle of the upper end of the housing, the input end of the atomizing pump being connected to a storage tank through a pipe, a spray nozzle being provided inside the housing, the output end of the atomizing pump being connected to the spray nozzle through a pipe, and collection components being provided on both the front and rear sides of the housing. The collection assembly includes interceptor plates that are slidably disposed on the front and rear sides of the housing, a movable component between the interceptor plates and the housing, and a collection box at the bottom of the interceptor plates, the bottom of the collection box being in contact with the surface of the conveyor belt.
2. The preservative paper spraying equipment according to claim 1, characterized in that: The movable component includes fixed plates at the front and rear ends of the housing, a rotating shaft is rotatably mounted between the two fixed plates, a first handle is connected to the front end of the rotating shaft, threaded sections are machined on both the front and rear sides of the rotating shaft, and a sliding plate is threaded to each of the two threaded sections. A connecting rod connected to the interceptor plate is fixed to the sliding plate.
3. The preservative paper spraying equipment according to claim 2, characterized in that: A sliding rod is fixed between the two fixed plates, and the sliding plate is slidably connected to the sliding rod.
4. The preservative paper spraying equipment according to claim 3, characterized in that: The bottom of the interceptor plate is provided with a T-shaped mounting groove, and the upper end of the collection box is provided with a T-shaped mounting strip that matches the T-shaped mounting groove.
5. The preservative paper spraying equipment according to claim 4, characterized in that: The upper side of the housing has a threaded hole, and a screw is threaded into the threaded hole. The lower end of the screw is rotatably connected to the nozzle. A second handle is fixed to the upper end of the screw. A limiting rod is slidably provided on the upper side of the housing, and the lower end of the limiting rod is connected to the nozzle.
6. The preservative paper spraying equipment according to claim 5, characterized in that: A door is provided on the left side of the housing.