Oil injection device for plastic shell
By using a ring-shaped transmission device and a multi-stage spraying, drying, and cleaning structure, the problems of worker health hazards and resource waste in plastic shell spraying operations have been solved, achieving efficient and safe spraying production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-20
AI Technical Summary
Existing plastic shell spraying operations pose problems such as worker health hazards, low production efficiency, and waste of spraying materials, and the conveyor belt is prone to oil stains.
The system employs a ring-shaped transmission device, combined with an oil spraying tank, a heating and drying section, and a cleaning section. Infrared sensors are used to position the oil spraying, and the drying and cleaning structures are integrated to reduce material waste and equipment contamination.
It achieves precise oil spraying, rapid drying, and effective cleaning, improving production efficiency and reducing health hazards to workers and waste of resources.
Smart Images

Figure CN224010164U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plastic shell production technical field, specifically point to a kind of for plastic shell oil injection device. BACKGROUND
[0002] Plastic shell refers to the shell made of plastic material, mainly used to protect internal components and provide structural support, plastic shell has the advantages of light weight, high specific strength, non-corrosion, good insulation, good processability, low processing cost, etc., suitable for mass production.
[0003] In further processing of plastic shell, oil injection operation is needed, which can ensure the external texture and practicality of plastic shell. In the prior art, workers usually use spray guns for oil injection operation, which can harm workers' health and reduce production efficiency. Some oil injection equipment driven by conveyor belt often causes material waste due to position limitation, and the conveyor belt is heavily contaminated. UTILITY MODEL CONTENT
[0004] The utility model solves the technical problem of the above background technology, provides an oil injection device for plastic shell.
[0005] To solve the above technical problems, the utility model provides a technical scheme: an oil injection device for plastic shell, comprising an annular transmission device and an oil injection tank arranged around the annular transmission device, wherein the annular transmission device is composed of multiple leather transmission belts and a mesh transmission belt, the mesh transmission belt is arranged in the oil injection tank, and the oil injection tank is composed of an oil injection section, a heating and drying section and a rear end cleaning section from front to back.
[0006] The first support frame is provided with multiple oil injection heads arranged transversely at the bottom, a second support frame is arranged in front of the first support frame in the oil injection section, and multiple infrared sensors are arranged transversely at the bottom of the second support frame.
[0007] The heating and drying section is connected with a hot air drying device, the cleaning section is provided with multiple pre-cleaning pipes and multiple cleaning pipes at the front and rear sides respectively, and multiple sprayers are connected at the bottom of the pre-cleaning pipes and the cleaning pipes.
[0008] Further, the top of the oil injection tank is connected with an air extraction fan communicated with the oil injection section, and a gas collection pipeline matched with the air extraction fan is connected at the top of the oil injection tank.
[0009] Further, the hot air drying device is provided with a heating and drying through-hole, and a drying fan and multiple heating nets are connected in the heating and drying through-hole.
[0010] Further, the oil injection tank is connected with support plates on the front and back sides of the oil injection section, the heating and drying section and the rear cleaning section, and a plurality of grid bars are connected to the bottom of the support plates.
[0011] Further, the annular conveying device is provided with a wastewater tank below the cleaning section, a circulating pump is connected to one side of the annular conveying device and communicates with the wastewater tank, a water delivery pipe is connected to the circulating pump and communicates with the pre-cleaning pipe, the cleaning pipe extends to the outside and is connected with a cleaning liquid inlet pipe, and a liquid discharge valve pipe is connected to one side of the annular conveying device and communicates with the wastewater tank.
[0012] Compared with the prior art, the utility model has the advantages that: the utility model transmits materials through the conveying belt, and can accurately spray oil according to the position of the materials in cooperation with the plurality of infrared sensors and the oil injection head, can quickly dry the operation in cooperation with the rear drying, sets up the multi-section type conveying structure, can reduce the pollution, and sets up the cleaning section, and can clean the conveying belt structure. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a first structure schematic view of an oil injection device for a plastic shell.
[0014] Fig. 2 It is a second structure schematic view of an oil injection device for a plastic shell.
[0015] Fig. 3 It is a side sectional view schematic view of an oil injection device for a plastic shell.
[0016] As shown in the drawings: 1, annular conveying device; 2, cortex conveying belt; 3, support plate; 4, oil injection tank; 5, mesh conveying belt; 6, oil injection section; 7, heating and drying section; 8, cleaning section; 9, first support frame; 10, oil injection head; 11, second support frame; 12, infrared sensor; 13, hot air drying equipment; 14, heating and drying through hole; 15, drying fan; 16, heating net; 17, exhaust fan; 18, gas collecting pipeline; 19, pre-cleaning pipe; 20, cleaning pipe; 21, sprayer; 22, circulating pump; 23, water delivery pipe; 24, cleaning liquid inlet pipe; 25, liquid discharge valve pipe; 26, wastewater tank; 27, grid bar. DETAILED DESCRIPTION
[0017] The utility model will be further explained in detail in combination with the drawings.
[0018] In combination with the drawings, Figs. 1-3The utility model provides a kind of oil injection device for plastic shell, including annular conveying device 1 and the oil injection tank 4 wrapped annular conveying device 1 setting, the annular conveying device 1 is by multiple cortex transmission belt 2 and mesh transmission belt 5 composition setting, the mesh transmission belt 5 is located in the oil injection tank 4 inside setting, the oil injection tank 4 is from front to back by oil injection section 6, heating drying section 7 and rear end cleaning section 8 setting.The oil injection tank 4 is located in oil injection section 6, heating drying section 7 and rear end cleaning section 8 front and back side are connected with support plate 3, the bottom of the support plate 3 is connected with multiple grid bars 27, grid bar 27 can choose cloth strip, also can choose silica gel material, can carry out semi-sealing separation with multiple cavities section, can reduce the mutual influence between oil injection section 6, heating drying section 7 and rear end cleaning section 8.
[0019] The first support frame 9 is provided in the oil injection section 6, and a plurality of transversely arranged oil injection heads 10 are connected to the bottom of the first support frame 9. The oil injection heads 10 need to be externally connected to oil and gas pipes and corresponding electric control valves for convenient control of oil injection operations. This is a common prior art and will not be described in detail. A second support frame 11 is provided in front of the first support frame 9 in the oil injection section 6. A plurality of infrared sensors 12 are transversely arranged at the bottom of the second support frame 11. Due to the large transverse width of the mesh transmission belt 5, workers may not place the plastic shell correctly or according to the rules. The position of the plastic shell can be sensed by the infrared sensors 12, so as to cooperate with the oil injection heads 10 at the rear side to position the oil injection and reduce the waste of raw materials. An air extraction fan 17 is connected to the top of the oil injection tank 4 and communicates with the oil injection section 6. A gas collection pipe 18 is connected to the top of the oil injection tank 4 and cooperates with the air extraction fan 17. The air extraction fan 17 and the gas collection pipe 18 can prevent excessive mist from accumulating and reduce pollution near the equipment.
[0020] A hot air drying device 13 is connected to the heating drying section 7. The hot air drying device 13 is provided with hot air drying holes 14. Drying fans 15 and a plurality of heating nets 16 are connected to the hot air drying holes 14. After oil injection at the front end, the plastic shell is moved under the hot air drying device 13 for hot air drying operations by the drying fans 15 and the plurality of heating nets 16.
[0021] A plurality of pre-cleaning pipes 19 and a plurality of cleaning pipes 20 are provided at the front and rear sides of the cleaning section 8. A plurality of sprayers 21 are connected to the bottom of the pre-cleaning pipes 19 and the cleaning pipes 20. The mesh transmission belt 5 cooperates with the plurality of pre-cleaning pipes 19, the plurality of cleaning pipes 20, and the plurality of sprayers 21 to clean the mesh transmission belt 5. The cleaning operation cannot be synchronized with the oil injection operation. Only when the oil injection operation stops can the flushing operation be started.
[0022] The annular conveying device 1 is provided with a wastewater tank 26 below the cleaning section 8, one side of the annular conveying device 1 is connected with a circulating pump 22 in communication with the wastewater tank 26, the circulating pump 22 is connected with a water delivery pipe 23 in communication with the pre-cleaning pipe 19, the cleaning pipe 20 extends to the outside and is connected with a cleaning liquid inlet pipe 24, one side of the annular conveying device 1 is connected with a liquid discharge valve pipe 25 in communication with the wastewater tank 26, the wastewater tank 26 is provided, so that the cleaning water can be recycled, the front end is pre-cleaned with wastewater, the rear end is cleaned with new liquid, the mesh conveying belt 5 can be fully cleaned, generally, the wastewater is cleaned first, and then the new liquid is input for cleaning operation, so that the cost can be saved.
[0023] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical solution, which should belong to the protection scope of the present application.
Claims
1. A spraying device for a plastic casing, comprising an annular conveyor (1) and a spraying tank (4) surrounding the annular conveyor (1), wherein the annular conveyor (1) is composed of multiple leather conveyor belts (2) and a mesh conveyor belt (5), wherein the mesh conveyor belt (5) is located inside the spraying tank (4), characterized in that: The oil injection tank (4) is configured from front to back as an oil injection section (6), a heating and drying section (7), and a rear cleaning section (8); The oil injection section (6) is provided with a first support frame (9), and the bottom of the first support frame (9) is connected to a plurality of horizontally arranged oil injection heads (10). The oil injection section (6) is provided with a second support frame (11) located in front of the first support frame (9), and the bottom of the second support frame (11) is provided with a plurality of infrared sensors (12). The heating and drying section (7) is connected to a hot air drying device (13), and the front and rear sides of the cleaning section (8) are respectively provided with a number of pre-cleaning pipes (19) and a number of cleaning pipes (20). The bottom of the pre-cleaning pipes (19) and the cleaning pipes (20) are connected to a number of sprayers (21).
2. The spraying device for plastic casings according to claim 1, characterized in that: The top of the fuel injection tank (4) is connected to an exhaust fan (17) that communicates with the fuel injection section (6), and the top of the fuel injection tank (4) is connected to an air collection pipe (18) that works in conjunction with the exhaust fan (17).
3. The spraying device for plastic casings according to claim 1, characterized in that: The hot air drying equipment (13) is provided with a heating and drying through hole (14), and a drying fan (15) and multiple heating grids (16) are connected in the heating and drying through hole (14).
4. The spraying device for plastic casings according to claim 1, characterized in that: The oil injection tank (4) is connected to support plates (3) on the front and rear sides of the oil injection section (6), the heating and drying section (7) and the rear cleaning section (8). Multiple baffles (27) are connected to the bottom of the support plates (3).
5. The spraying device for plastic casings according to claim 1, characterized in that: The ring-shaped transmission device (1) is located below the cleaning section (8) and has a wastewater tank (26). A circulation pump (22) connected to the wastewater tank (26) is connected to one side of the ring-shaped transmission device (1). The circulation pump (22) is connected to a water supply pipe (23) connected to the pre-cleaning pipe (19). The cleaning pipe (20) extends to the outside and is connected to a cleaning liquid inlet pipe (24). A drain valve pipe (25) connected to the wastewater tank (26) is connected to one side of the ring-shaped transmission device (1).