An apparatus for producing a sandwich film
By introducing feeding guide rollers, feeding guide blocks, and a laser detection system into the sandwich film production equipment, the film bonding accuracy can be monitored and adjusted in real time, solving the bonding accuracy problem caused by the high-temperature shrinkage and expansion of equipment parts, and achieving high-efficiency production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JINAN LIJUN MASCH EQUIP CO LTD
- Filing Date
- 2023-10-13
- Publication Date
- 2026-07-14
AI Technical Summary
Existing sandwich film production equipment experiences shrinkage and expansion of parts during high-temperature lamination, affecting lamination accuracy and increasing defect rate and production costs.
It adopts a combination structure of feeding guide roller, feeding guide block, heating roller and pressure roller, and through the cooperation of laser reflector block, laser emitter and laser receiver, it monitors the film bonding accuracy in real time, and uses the host computer to issue alarms for adjustment to ensure accurate film bonding.
It improves film lamination accuracy, reduces defect rate, and lowers production costs.
Smart Images
Figure CN117400545B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sandwich film production technology, and more specifically to a sandwich film production equipment. Background Technology
[0002] Sandwich film is a composite material consisting of at least two layers of plastic film sandwiched with an adhesive layer. Sandwich films are commonly used in food packaging, pharmaceutical packaging, and cosmetic packaging to protect the contents from external environmental factors and bacteria. They possess waterproof, moisture-proof, oxygen-barrier, and odor-blocking properties, effectively extending the shelf life of goods, and also exhibit good mechanical properties such as tear resistance and impact resistance. Existing sandwich film lamination methods require a web-aligning device to ensure accurate adhesion of the multiple layers before lamination. However, this lamination process involves high temperatures, which can cause shrinkage and expansion of equipment parts, affecting lamination accuracy, increasing defect rates, and ultimately raising production costs. Summary of the Invention
[0003] This invention provides a production equipment for sandwich films, which solves the above-mentioned technical problems.
[0004] The solution of the present invention to the above-mentioned technical problems is as follows:
[0005] A sandwich film production device includes a feeding guide roller, a feeding guide block, a heating roller, and side plates. The side plates are mounted above an oil tank. Feeding guide rollers are installed between the side plates. There are three feeding guide rollers arranged in an equilateral triangular array. Multiple films are fed and guided by the three feeding guide rollers. Bearing sleeves are installed on the feeding guide rollers, and fixing blocks are installed on the bearing sleeves. Reflective blocks, laser emitters, and laser receivers are respectively installed on the fixing blocks of the three feeding guide rollers. A feeding guide block is located behind the feeding guide rollers between the side plates. A heating roller is located on the side of the side plates opposite to the feeding guide rollers between the feeding guide blocks. A pressure roller is located behind the heating rollers between the side plates.
[0006] The beneficial effects of this invention are as follows: During use, the user limits the position of multiple films by using the bearing sleeves of the feeding guide roller, so that the multiple films can be accurately bonded. At this time, the bearing sleeves are located on both sides of the film, so that the two sides of the film are blocked by the bearing sleeves for feeding. When the parts are heated and deformed, causing the position of the bearing sleeves to move, the reflector, laser emitter and laser receiver on the three bearing sleeves are misaligned, so that the laser receiver cannot receive the signal emitted by the laser emitter. At this time, the host computer connected to the laser emitter and laser receiver cannot receive the laser signal. At this time, the host computer issues an alarm to remind the user to adjust the bearing sleeves of the feeding guide roller, thereby ensuring the bonding accuracy of the film, which is convenient for subsequent heating by the heating roller and pressing by the pressure roller.
[0007] Based on the above technical solution, the present invention can be further improved as follows.
[0008] Furthermore, the reflector, laser emitter, and laser receiver are located in the same plane, with the laser emitter and laser receiver symmetrically distributed on both sides of the reflector.
[0009] The advantage of adopting the above-mentioned further solution is that it makes it easier to ensure the bonding accuracy of the film.
[0010] Furthermore, there are two sets of feeding guide blocks, and the two sets of feeding guide blocks are symmetrically distributed between the feeding guide roller and the heating roller.
[0011] The advantages of adopting the above-mentioned further scheme are: it facilitates the aggregation of multi-layer films and the pressing of them by heating rollers and pressure rollers.
[0012] Furthermore, the heating roller has connectors at both ends, and the heating roller is connected to the oil tank through the connectors.
[0013] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the entry of oil from the oil tank into the heat exchange roller.
[0014] Furthermore, the oil tank is equipped with a heating wire and a delivery pump, and the oil in the oil tank is delivered into the heating roller through the delivery pump.
[0015] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the circulation of oil in the tank.
[0016] Furthermore, a limiting rod is provided on the side surface of the fixing block away from the bearing sleeve, and a limiting block is provided at the end of the limiting rod away from the fixing block.
[0017] The beneficial effect of adopting the above-mentioned further solution is that the limiting rod limits the fixed block, preventing the limiting block from rotating together with the feeding guide roller.
[0018] Furthermore, the feeding guide roller, feeding guide block, heating roller, and pressure roller are mounted on the side plate via bearing seats.
[0019] The beneficial effect of adopting the above-mentioned further solution is that it facilitates the rotation of the feeding guide roller, the feeding guide block, the heating roller and the pressure roller.
[0020] Furthermore, a through hole is provided through the side plate, and the position and size of the through hole are adapted to the limiting rod.
[0021] The advantage of adopting the above-mentioned further solution is that it facilitates the adjustment of the bearing sleeve's position on the feeding guide roller.
[0022] Furthermore, the bearing sleeve is bolted onto the feeding guide roller.
[0023] The advantage of adopting the above-mentioned further solution is that it facilitates quick adjustment of the bearing sleeve position.
[0024] Furthermore, the laser transmitter and laser receiver are connected to the host computer via wires.
[0025] The advantage of adopting the above-mentioned further solution is that it makes it easier to determine whether the bearing sleeve is located in the same plane by detecting the laser signal through the host computer, thereby ensuring the film bonding accuracy.
[0026] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description
[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.
[0028] In the attached diagram:
[0029] Fig. 1 This is a top view of the present invention;
[0030] Fig. 2 This is a schematic diagram of the main structure of the present invention;
[0031] Fig. 3 This is a schematic diagram of the front view of the present invention.
[0032] The attached diagram lists the components represented by each number as follows:
[0033] 1. Bearing sleeve; 2. Feeding guide roller; 3. Fixing block; 4. Limiting rod; 5. Limiting block; 6. Feeding guide block; 7. Heating roller; 8. Side plate; 9. Pressure roller; 10. Joint; 11. Reflector block; 12. Laser emitter; 13. Oil tank; 14. Laser receiver; 15. Through hole. Detailed Implementation
[0034] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.
[0035] Please see Figs. 1 to 3 As shown, the embodiments provided by the present invention are as follows:
[0036] Example 1
[0037] A sandwich film production device includes a feeding guide roller 2, a feeding guide block 6, a heating roller 7, and side plates 8. The side plates 8 are mounted above an oil tank 13. Feeding guide rollers 2 are installed between the side plates 8. There are three feeding guide rollers 2 in total, and the three feeding guide rollers 2 are arranged in an equilateral triangular array. Multiple films are fed and guided by the three feeding guide rollers 2. A bearing sleeve 1 is installed on the feeding guide roller 2, and a fixing block 3 is installed on the bearing sleeve 1. The bearing sleeve 1 is installed on the feeding guide roller 2 by bolts. A limiting rod 4 is provided on the side surface of the fixing block 3 away from the bearing sleeve 1, and a limiting block 5 is provided on the end of the limiting rod 4 away from the fixing block 3.
[0038] Reflector blocks 11, laser emitters 12, and laser receivers 14 are respectively installed on the fixing blocks 3 of the three feeding guide rollers 2. The user limits the position of multiple films by using the bearing sleeves 1 of the feeding guide rollers 2, ensuring accurate film bonding. At this time, the bearing sleeves 1 are located on both sides of the film, allowing the film to be fed through the obstruction of the bearing sleeves 1. When the parts deform due to heat, causing the bearing sleeves 1 to shift, the reflector blocks 11, laser emitters 12, and laser receivers 14 on the three bearing sleeves 1 become misaligned. This results in the laser receiver 14 being unable to receive the signal emitted by the laser emitter 12. Consequently, the host computer connected to the laser emitter 12 and laser receiver 14 cannot receive the laser signal. The host computer then issues an alarm to remind the user to adjust the bearing sleeves 1 of the feeding guide rollers 2, thereby ensuring the film bonding accuracy and facilitating subsequent heating by the heating roller 7 and pressing by the pressure roller 9. 14 are located in the same plane. The laser emitter 12 and the laser receiver 14 are symmetrically distributed on both sides of the reflector block 11. The laser emitter 12 and the laser receiver 14 are connected to the host computer via wires. A feeding guide block 6 is provided between the side plates 8 behind the feeding guide roller 2. There are two sets of feeding guide blocks 6, and the two sets of feeding guide blocks 6 are symmetrically distributed between the feeding guide roller 2 and the heating roller 7. A heating roller is provided between the side plates 8 on the side of the feeding guide block 6 opposite to the feeding guide roller 2. The heating roller 7 has connectors 10 at both ends. The heating roller 7 is connected to the oil tank 13 through the connectors 10. The oil tank 13 contains a heating wire and a delivery pump. The oil in the oil tank 13 is sent into the heating roller 7 through the delivery pump. The pressure roller 9 is located behind the heating roller 7 between the side plates 8. The feeding guide roller 2, the feeding guide block 6, the heating roller 7 and the pressure roller 9 are mounted on the side plates 8 through the bearing seats. The side plates 8 have through holes 15, and the position and size of the through holes 15 are adapted to the limit rod 4.
[0039] In the production equipment for sandwich films based on Embodiment 1, the user limits the position of multiple films by using the bearing sleeves 1 of the feeding guide roller 2, so that the multiple films can be accurately bonded. At this time, the bearing sleeves 1 are located on both sides of the film, so that the two sides of the film are blocked by the bearing sleeves 1 for feeding. When the parts are heated and deformed, causing the position of the bearing sleeves 1 to move, the reflector 11, laser emitter 12 and laser receiver 14 on the three bearing sleeves 1 are misaligned, so that the laser receiver 14 cannot receive the signal emitted by the laser emitter 12. At this time, the host computer connected to the laser emitter 12 and the laser receiver 14 cannot receive the laser signal. At this time, the host computer issues an alarm to remind the user to adjust the bearing sleeves 1 of the feeding guide roller 2, so as to ensure the bonding accuracy of the film, which is convenient for subsequent heating by the heating roller 7 and pressing by the pressure roller 9.
[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.
Claims
1. A production equipment for sandwich films, characterized in that: The system includes a feeding guide roller (2), a feeding guide block (6), a heating roller (7), and side plates (8). The side plates (8) are mounted above the oil tank (13). Feeding guide rollers (2) are installed between the side plates (8). There are three feeding guide rollers (2), which are arranged in an equilateral triangular array. Multiple films are fed and guided by the three feeding guide rollers (2). Bearing sleeves (1) are installed on the feeding guide rollers (2). A fixing block (3) is installed on each of the three feeding guide rollers (2). A reflector (11), a laser emitter (12), and a laser receiver (14) are respectively installed on the fixing block (3). A feeding guide block (6) is provided between the side plates (8) behind the feeding guide rollers (2). A heating roller (7) is provided between the side plates (8) on the side of the feeding guide block (6) away from the feeding guide rollers (2). A pressure roller (9) is provided between the side plates (8) behind the heating roller (7).
2. The equipment for producing sandwich films according to claim 1, characterized in that: The reflector (11), laser emitter (12) and laser receiver (14) are located in the same plane, and the laser emitter (12) and laser receiver (14) are symmetrically distributed on both sides of the reflector (11).
3. The equipment for producing sandwich films according to claim 1, characterized in that: The feeding guide block (6) is provided in two sets, and the two sets of feeding guide blocks (6) are symmetrically distributed between the feeding guide roller (2) and the heating roller (7).
4. The equipment for producing sandwich films according to claim 1, characterized in that: The heating roller (7) has connectors (10) at both ends, and the heating roller (7) is connected to the oil tank (13) through the connectors (10).
5. The production equipment for sandwich films according to claim 1, characterized in that: The oil tank (13) is equipped with a heating wire and a delivery pump. The oil in the oil tank (13) is delivered into the heating roller (7) by the delivery pump.
6. The equipment for producing sandwich films according to claim 1, characterized in that: The fixed block (3) has a limiting rod (4) on the side surface away from the bearing sleeve (1), and a limiting block (5) is provided at the end of the limiting rod (4) away from the fixed block (3).
7. The production equipment for sandwich films according to claim 1, characterized in that: The feeding guide roller (2), feeding guide block (6), heating roller (7) and pressure roller (9) are mounted on the side plate (8) through bearing seats.
8. The production equipment for sandwich films according to claim 1, characterized in that: The side plate (8) has a through hole (15) through it, and the position and size of the through hole (15) are adapted to the limiting rod (4).
9. The equipment for producing sandwich films according to claim 1, characterized in that: The bearing sleeve (1) is bolted onto the feeding guide roller (2).
10. The equipment for producing sandwich films according to claim 1, characterized in that: The laser transmitter (12) and laser receiver (14) are connected to the host computer via wires.