An apparatus for producing a shrink film of a fully degradable material
By using laser monitoring and impurity filtration mechanisms, the problem of inaccurate raw material consumption monitoring has been solved, ensuring production continuity and quality. Automatic raw material replenishment and impurity removal have been achieved, improving the automation and efficiency of fully degradable shrink film production equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI XIONGXIAN MINGPENG HEAT SHRINKABLE FILM CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-09
AI Technical Summary
Existing technologies cannot accurately monitor and determine raw material consumption, leading to frequent manual checks of remaining raw material levels, which are prone to errors or forgetfulness and affect production continuity.
The feed monitoring mechanism, which uses a laser receiver and laser emitter in conjunction with an alarm, monitors the remaining amount of raw materials in real time and issues an alarm when the amount is insufficient. Combined with a convenient impurity removal mechanism, impurities are filtered through a filter plate to ensure the quality of the raw materials.
It enables precise monitoring of raw material consumption, reduces manual intervention, prevents raw material shortages, improves production continuity, and enhances the production quality of shrink film.
Smart Images

Figure CN224334994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shrink film production technology, specifically to a shrink film production equipment made of fully degradable materials. Background Technology
[0002] Fully biodegradable shrink film is an environmentally friendly packaging material that can be completely decomposed into water, carbon dioxide and biomass under natural conditions through the action of microorganisms, without causing pollution to the environment. The production of shrink film usually requires melting and extruding the raw materials through an extruder, and then making the film through subsequent forming processes (such as blown film or cast stretching).
[0003] However, currently, when raw materials are fed into the extruder, it is impossible to accurately monitor and judge the consumption of raw materials. It requires manpower to frequently check the remaining amount of raw materials. Manual judgment is prone to errors or forgetting, resulting in the loss of raw materials and affecting subsequent normal production. Therefore, this utility model provides a shrink film production equipment for fully degradable materials to meet people's needs. Utility Model Content
[0004] This invention provides a shrink film production equipment for fully degradable materials, which can effectively solve the problem mentioned in the background art that when raw materials are discharged into the extruder, it is impossible to accurately monitor and judge the consumption of raw materials, requiring manpower to frequently check the remaining amount of raw materials. Manual judgment is prone to errors or forgetting, resulting in the loss of raw materials and affecting subsequent normal production.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a shrink film production equipment for fully degradable materials, including a support frame, an extruder fixedly installed at the top of the support frame, a feed hopper fixedly installed at one end of the top of the extruder, and a feed monitoring mechanism provided at the bottom of the feed hopper;
[0006] The feed monitoring mechanism includes a square through hole, a sealed mounting frame, a laser receiver, a laser emitter, an arc-shaped protective plate, and an alarm.
[0007] The bottom of the surface wall of the feed hopper is symmetrically provided with square through holes. A sealing frame is embedded in the interior of each of the two square through holes. A laser receiver is fixedly installed inside one of the sealing frames, and a laser emitter is fixedly installed inside the other sealing frame. An arc-shaped protective plate is fixedly installed at one end of each of the two sealing frames. An alarm is fixedly installed at one end of the top of the feed hopper.
[0008] Preferably, the laser receiver and the laser transmitter are positioned corresponding to each other, and the signal output terminal of the laser receiver is connected to the signal input terminal of the alarm.
[0009] Preferably, one end of the arc-shaped protective plate is arc-shaped and flush with the inner wall of the feed hopper, and the arc-shaped protective plate is a composite polymer transparent plate.
[0010] Preferably, a convenient impurity removal mechanism is installed at one end of the support frame;
[0011] The convenient impurity removal mechanism includes an impurity removal box, an impurity removal filter plate, a guide strip plate, a sealing long plate, a bonding block, a locking stud, and a sealing rubber gasket;
[0012] A cleaning box is fixedly installed at one end of the support frame. A cleaning filter plate is movably embedded in the middle of the cleaning box. Guide strips are fixedly connected to both sides of the cleaning filter plate. A sealing plate is fixedly connected to one end of the cleaning filter plate. Adhesive blocks are symmetrically fixedly connected to the top and bottom ends of the sealing plate. A locking stud is installed in the middle of the adhesive block. A sealing rubber gasket is fixedly bonded to the edge of the sealing plate.
[0013] Preferably, a conveying pipe is fixedly connected to the top of the impurity removal box, and the conveying pipe is connected to the bottom of one end of the extruder.
[0014] Preferably, the two inner walls of the impurity removal box are symmetrically provided with sliding grooves, the two guide strips are respectively movably engaged inside the sliding grooves, the sealing long plate and the impurity removal box are fixedly connected by locking studs, and the sealing rubber gasket is in close contact with the outer wall of the impurity removal box.
[0015] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.
[0016] 1. Equipped with a feeding monitoring mechanism, the laser receiver and laser emitter are positioned in a corresponding manner. The emitted laser monitors the remaining amount of raw material stored in the feeding hopper. When the remaining amount of raw material reaches a certain level, the laser can no longer be blocked, and a signal is promptly transmitted to the alarm to remind the staff to replenish the raw material in time. This prevents the subsequent production process from being disrupted due to insufficient replenishment after all the raw material has been consumed. It also eliminates the need for frequent manual checks of the remaining raw material, making it more convenient to use. The arc-shaped protective plate protects the laser receiver and laser emitter, preventing the raw material from impacting and damaging them without hindering laser penetration.
[0017] 2. It is equipped with a convenient impurity removal mechanism. The impurity removal filter plate can filter and purify the molten raw material, remove impurity particles mixed in the raw material, improve the quality of subsequent shrink film production, and the impurity removal filter plate is easy to install and disassemble, which greatly facilitates subsequent dismantling, cleaning and installation. The sealing rubber gasket improves the sealing performance of the installation and prevents raw material from seeping out and causing resource waste or environmental pollution. Attached Figure Description
[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0019] In the attached diagram:
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the installation structure of the impurity removal box of this utility model;
[0022] Figure 3 This is a schematic diagram of the feeding monitoring mechanism of this utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the convenient impurity removal mechanism of this utility model;
[0024] The diagram shows: 1. Support frame; 2. Extruder; 3. Feed hopper;
[0025] 4. Feed monitoring mechanism; 401. Square through hole; 402. Sealed mounting frame; 403. Laser receiver; 404. Laser emitter; 405. Arc-shaped protective plate; 406. Alarm;
[0026] 5. Convenient impurity removal mechanism; 501. Impurity removal box; 502. Impurity removal filter plate; 503. Guide strip plate; 504. Sealing long plate; 505. Adhesive block; 506. Locking stud; 507. Sealing rubber gasket. Detailed Implementation
[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0028] Example: Figure 1-4 As shown, this utility model provides a technical solution, a shrink film production equipment for fully degradable materials, including a support frame 1, an extruder 2 fixedly installed at the top of the support frame 1, a feed hopper 3 fixedly installed at one end of the top of the extruder 2, and a feed monitoring mechanism 4 provided at the bottom of the feed hopper 3;
[0029] The feed monitoring mechanism 4 includes a square through hole 401, a sealed mounting frame 402, a laser receiver 403, a laser emitter 404, an arc-shaped protective plate 405, and an alarm 406;
[0030] The bottom of the outer wall of the feed hopper 3 is symmetrically provided with square through holes 401. A sealing mounting frame 402 is embedded inside each of the two square through holes 401. A laser receiver 403 is fixedly installed inside one sealing mounting frame 402, and a laser emitter 404 is fixedly installed inside the other sealing mounting frame 402. An arc-shaped protective plate 405 is fixedly installed at one end of each sealing mounting frame 402. An alarm 406 is fixedly installed at one end of the top of the feed hopper 3. The laser receiver 403 and the laser emitter 404 are positioned correspondingly. The signal output terminal of the laser receiver 403 is connected to the signal input terminal of the alarm 406. One end of the arc-shaped protective plate 405 is arc-shaped and flush with the inner wall of the feed hopper 3. The arc-shaped protective plate 405 is a composite... The polymer transparent plate utilizes the corresponding positions of the laser receiver 403 and the laser emitter 404 to monitor the remaining amount of raw materials stored inside the feed hopper 3 through the emitted laser. When the remaining amount of raw materials reaches a certain level, the laser can no longer be blocked, and a signal can be promptly transmitted to the alarm 406 to remind the staff so that they can replenish the raw materials in time. This prevents the subsequent production process from being disrupted due to the failure to replenish the raw materials in time after they are all consumed. Moreover, it eliminates the need for frequent manual checks on the remaining amount of raw materials, making it more convenient to use. The arc-shaped protective plate 405 can protect the laser receiver 403 and the laser emitter 404, preventing the raw materials from impacting and damaging them without hindering the laser penetration.
[0031] One end of the support frame 1 is equipped with a convenient impurity removal mechanism 5;
[0032] The convenient impurity removal mechanism 5 includes an impurity removal box 501, an impurity removal filter plate 502, a guide strip plate 503, a sealing long plate 504, a bonding block 505, a locking stud 506, and a sealing rubber gasket 507.
[0033] A cleaning box 501 is fixedly installed at one end of the support frame 1. A cleaning filter plate 502 is movably embedded in the middle of the cleaning box 501. Guide strips 503 are fixedly connected to both sides of the cleaning filter plate 502. A sealing plate 504 is fixedly connected to one end of the cleaning filter plate 502. Adhesive blocks 505 are symmetrically fixedly connected to the top and bottom ends of the sealing plate 504. A locking stud 506 is installed in the middle of the adhesive block 505. A sealing rubber gasket 507 is fixedly bonded to the edge of the sealing plate 504. A conveying pipe is fixedly connected to the top of the cleaning box 501. The conveying pipe is connected to the bottom of one end of the extruder 2. The two inner walls of the impurity removal box 501 are symmetrically provided with sliding grooves. Two guide strips 503 are respectively movably engaged inside the sliding grooves. The sealing long plate 504 and the impurity removal box 501 are fixedly connected by locking studs 506. The sealing rubber gasket 507 is in close contact with the surface wall of the impurity removal box 501. The impurity removal filter plate 502 can filter and purify the molten raw material, remove impurity particles mixed in the raw material, improve the quality of subsequent shrink film production, and the impurity removal filter plate 502 is easy to install and disassemble, which greatly facilitates subsequent dismantling, cleaning and installation. The sealing rubber gasket 507 improves the sealing performance of the installation and prevents raw material from seeping outward, causing resource waste or environmental pollution.
[0034] The working principle and usage process of this utility model are as follows: First, the staff pours the raw materials used for shrink film production into the inside of the feed hopper 3. The height of the raw material pile is much higher than the horizontal plane of the laser receiver 403 and the laser emitter 404, so that the laser emitted by the laser emitter 404 is blocked by the piled raw materials, and the laser receiver 403 cannot capture the laser. The raw material enters the inside of the extruder 2 from the feed hopper 3. Inside the extruder 2, it is heated to a molten state and conveyed forward, so that it is discharged into the inside of the impurity removal box 501. The molten raw material falls on the surface of the impurity removal filter plate 502 and passes through it, which can intercept the impurity particles mixed in the raw material. The filtered raw material is used for subsequent casting and stretching in the longitudinal or transverse direction to form a film.
[0035] The raw materials inside the feed hopper 3 are continuously consumed. After they are consumed to a certain amount, the height of the accumulation is lower than the height of the laser emitter 404, and it cannot block the extension of the laser emitter 404. This allows the laser receiver 403 to successfully capture the laser and transmit the signal to the alarm 406, causing the alarm 406 to sound an alarm. The staff can then replenish the raw materials inside the feed hopper 3 in time.
[0036] After a period of production, some particulate impurities will remain on the surface of the impurity removal filter plate 502, which needs to be cleaned. Unscrew the locking stud 506, pull the sealing plate 504 outward, remove the impurity removal filter plate 502, and clean it. After cleaning, reinsert the impurity removal filter plate 502 into the impurity removal box 501, and ensure that the sealing rubber gasket 507 is in contact with the surface wall of the impurity removal box 501. Tighten the locking stud 506.
[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A shrink film production device for fully degradable materials, comprising a support frame (1), characterized in that: An extruder (2) is fixedly installed at the top of the support frame (1), and a feed hopper (3) is fixedly installed at one end of the top of the extruder (2). A feed monitoring mechanism (4) is provided at the bottom of the feed hopper (3). The feed monitoring mechanism (4) includes a square through hole (401), a sealed mounting frame (402), a laser receiver (403), a laser emitter (404), an arc-shaped protective plate (405), and an alarm (406); The bottom of the surface wall of the feed hopper (3) is symmetrically provided with square through holes (401). A sealing mounting frame (402) is embedded in the interior of each of the two square through holes (401). A laser receiver (403) is fixedly installed inside one of the sealing mounting frames (402), and a laser emitter (404) is fixedly installed inside the other sealing mounting frame (402). An arc-shaped protective plate (405) is fixedly installed at one end of each of the two sealing mounting frames (402). An alarm (406) is fixedly installed at one end of the top of the feed hopper (3).
2. The shrink film production equipment for fully degradable materials according to claim 1, characterized in that, The laser receiver (403) and the laser transmitter (404) are positioned corresponding to each other, and the signal output terminal of the laser receiver (403) is connected to the signal input terminal of the alarm (406).
3. The shrink film production equipment for fully degradable materials according to claim 1, characterized in that, One end of the arc-shaped protective plate (405) is arc-shaped and flush with the inner wall of the feed hopper (3). The arc-shaped protective plate (405) is a composite polymer transparent plate.
4. The shrink film production equipment for fully degradable materials according to claim 1, characterized in that, A convenient impurity removal mechanism (5) is installed at one end of the support frame (1); The convenient impurity removal mechanism (5) includes an impurity removal box (501), an impurity removal filter plate (502), a guide bar plate (503), a sealing long plate (504), a bonding block (505), a locking stud (506), and a sealing rubber gasket (507); A cleaning box (501) is fixedly installed at one end of the support frame (1). A cleaning filter plate (502) is movably embedded in the middle of the cleaning box (501). Guide strips (503) are fixedly connected to both sides of the cleaning filter plate (502). A sealing long plate (504) is fixedly connected to one end of the cleaning filter plate (502). Adhesive blocks (505) are symmetrically fixedly connected to the top and bottom ends of the sealing long plate (504). A locking stud (506) is installed in the middle of the adhesive block (505). A sealing rubber gasket (507) is fixedly bonded to the edge of the sealing long plate (504).
5. The shrink film production equipment for fully degradable materials according to claim 4, characterized in that, The top of the impurity removal box (501) is fixedly connected to a conveying pipe, which is connected to the bottom of one end of the extruder (2).
6. The shrink film production equipment for fully degradable materials according to claim 4, characterized in that, The two inner walls of the impurity removal box (501) are symmetrically provided with sliding grooves. The two guide strips (503) are respectively movably engaged inside the sliding grooves. The sealing long plate (504) and the impurity removal box (501) are fixedly connected by locking studs (506). The sealing rubber gasket (507) is in close contact with the outer wall of the impurity removal box (501).