Protective film feeding mechanism of application coating machine

By designing a protective film feeding mechanism for the coating machine, using cylinders and servo motors for automated feeding, and combining a limit structure to prevent misalignment of the rotating shaft, the problems of time-consuming, labor-intensive, and safety hazards associated with manual feeding are solved, achieving safe and efficient protective film feeding.

CN224147274UActive Publication Date: 2026-04-21TIANJIN CHEN JIE SCI & TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN CHEN JIE SCI & TECH DEV
Filing Date
2025-06-05
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing coating machines, the feeding of protective film relies on manual handling, which is labor-intensive and poses safety hazards.

Method used

Design a protective film feeding mechanism for a coating machine. The mechanism uses a cylinder to drive the feeding plate to deflect, combined with a servo motor and synchronous drum drive to achieve automatic feeding of the roll. Limit blocks and limit hoops are used to prevent lateral displacement of the rotating shaft, thereby reducing the feeding height and risk.

Benefits of technology

It reduces the difficulty and risk of manual material loading, ensures operational safety, and improves the stability and efficiency of equipment operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective film feeding mechanism of an application coating machine, which relates to the technical field of coating machines, aims to solve the technical problems of time and labor consumption and large potential safety hazard of current manual feeding, and comprises an edge protection shell, two feeding plates and a winding drum, the inner ends of the two feeding plates are rotationally installed on the two sides of the interior of the support through rotating shafts correspondingly, air cylinders are rotationally installed at the upper ends of the two sides of the interior of the support through hinge structures correspondingly, the lower ends of inner rods of the air cylinders are rotationally connected to the middles of the feeding plates through hinges, and the edge protection shell is fixed to the outer portion of the feeding plate on one side through bolts. The two feeding plates are connected through a guide roller, connecting grooves are formed in the upper sides of the outer ends of the feeding plates, cloth is wound on the winding drum, rotating shafts are fixed to the two ends of the winding drum, and the rotating shafts are clamped and limited in the connecting grooves. The automatic feeding device has the advantages that the height of a machine position feeding component is reduced, the risk of manual feeding is reduced, and the labor cost is saved.
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Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, and more specifically, to a protective film feeding mechanism for an application coating machine. Background Technology

[0002] A plastering coating machine primarily uses specific mechanical devices to evenly coat liquid adhesives, ointments, syrups, and other materials onto a substrate material. Subsequent processing steps then transform it into a usable plastering product. The process involves material conveying, precise coating, and drying / setting, aiming to achieve uniform and stable material coating on the substrate, ensuring the quality and effectiveness of the plastering product.

[0003] In existing coating machines, because the machine is mounted at a high position, the loading of protective film usually relies on manual labor to move heavy rolls of film to a higher location. This method not only consumes a lot of manpower, but also poses certain safety hazards due to the weight of the rolls, increasing the difficulty and risk of operation. Therefore, we propose a protective film loading mechanism for a coating machine. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a protective film feeding mechanism for a coating machine, so as to solve the technical problems of the current manual feeding being time-consuming, labor-intensive, and posing significant safety hazards.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a protective film feeding mechanism for a coating machine, comprising a side cover, a feeding plate, and a roll. Two feeding plates are provided, and the inner ends of the two feeding plates are rotatably mounted on both sides of a support via rotating shafts. Cylinders are rotatably mounted on the upper ends of both sides of the support via hinges, and the lower ends of the inner rods of the cylinders are rotatably connected to the middle of the feeding plates via hinges. The side cover is fixed to the outside of one feeding plate by bolts. The two feeding plates are connected by guide rollers. A connecting groove is provided on the upper side of the outer end of the feeding plate. Fabric is wound onto the roll, and rotating shafts are fixed at both ends of the roll, with the rotating shafts engaging and limiting within the connecting grooves.

[0006] In use, this utility model is powered by an external power source. The operator starts the device via an external control device. The starting cylinder drives the feeding plate to deflect downwards, then the rotating shafts at both ends of the drum are guided into the connecting groove, and then the locking limit is engaged, so that the auxiliary teeth mate with the drive teeth. The servo motor is started to complete the synchronous drum start. The two synchronous drums work with the synchronous belt to complete the transmission, driving the drive teeth to rotate. The drive teeth mesh with the auxiliary teeth to drive the drum to rotate, and the drum releases the wound fabric. Through the above structural design, this device can adjust the height of the feeding point, reduce the feeding height, reduce the difficulty of manual feeding, reduce risks, and ensure operational safety. When the drum is feeding, its two ends... The rotating shaft is inserted into the connecting slots of the two feeding plates. Then, the drum is manually pushed to compress the guide slope of the rotating shaft. During the compression process, the limiting block deflects downward. When the rotating shaft enters the inner side of the limiting band, the downward pressure disappears, and the spring-loaded component rebounds to reset the limiting block. The inner arc surface of the limiting block fits against the rotating shaft. At the same time, the limiting band unfolds when the limiting block deflects downward. After the limiting block resets, the limiting band clamps in the annular groove of the rotating shaft. Through the above structural design, the rotating shaft is initially limited by the limiting block, and at the same time, the limiting band provides lateral limitation of the rotating shaft, preventing lateral displacement of the rotating shaft during rotation from causing misalignment and separation of the drive teeth and auxiliary teeth, thus ensuring the quality of normal equipment operation.

[0007] Preferably, a synchronizing cylinder is rotatably installed at both ends of the inner side shell, and the two synchronizing cylinders are connected by a synchronous belt drive. A drive tooth is fixed on the synchronizing cylinder at the outer end of the side shell, and a servo motor is fixed on the outer side of the side shell, with the output shaft of the servo motor connected to the synchronizing cylinder at the inner end.

[0008] Preferably, the bottom of the connecting groove is provided with a storage groove, and a limit block is rotatably installed at the upper opening of the storage groove via a rotating shaft. The storage groove is provided with a spring-loaded component, which is C-shaped, and the upper end of the spring-loaded component is connected to the bottom of the limit block.

[0009] Preferably, the upper end of the limiting block is provided with a guide slope, and the inclined surface of the guide slope corresponds to the material inlet of the connecting groove, and the arc surface of the inner end of the limiting block is adapted to the rotating shaft.

[0010] Preferably, the bottom of the connecting groove is designed as a round opening, and a limiting band is provided at the bottom of the connecting groove. The upper end connecting block of the limiting band is threadedly installed on the top of the round opening of the connecting groove by a fixing screw, and the lower end of the limiting band is fixed on the inner arc surface of the limiting block.

[0011] Preferably, the rotating shaft has an annular groove, and the limiting clamp is clamped in the annular groove.

[0012] Preferably, an auxiliary tooth is fixed on the outer end of the rotating shaft at one end of the drum, and the auxiliary tooth meshes with the driving tooth.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model designs a feeding plate, which is driven by a cylinder to deflect downwards. Then, the rotating shafts at both ends of the drum are guided into the connecting groove and locked in place, so that the auxiliary teeth engage with the drive teeth. The servo motor is then started to start the synchronous drum. The two synchronous drums work with the synchronous belt to complete the transmission, driving the drive teeth to rotate. The drive teeth mesh with the auxiliary teeth to drive the drum to rotate, and the drum releases the wound fabric. Through the above structural design, this device can adjust the height of the feeding point, reduce the feeding height, reduce the difficulty of manual feeding, reduce the risk, and ensure operational safety.

[0015] 2. This utility model also incorporates a limiting block design. When the drum is being fed, the rotating shafts at both ends are inserted into the connecting grooves of the two feeding plates. Then, the drum is manually pushed, causing the rotating shafts to press against the guide slope. During the pressing process, the limiting block deflects downwards. When the rotating shaft enters the inner side of the limiting band, the downward pressure disappears, and the spring-loaded component rebounds, causing the limiting block to reset. The inner arc surface of the limiting block fits against the rotating shaft, and the limiting band unfolds when the limiting block deflects downwards. After the limiting block resets, the limiting band is clamped in the annular groove of the rotating shaft. Through the above structural design, the limiting block initially limits the rotating shaft, and at the same time, the limiting band provides lateral limiting for the rotating shaft, preventing lateral displacement of the rotating shaft during rotation that could cause misalignment and separation of the drive teeth and auxiliary teeth, thus ensuring the quality of normal equipment operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the working state of this utility model;

[0018] Figure 3 This is a schematic diagram of the extendable arm structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the side protective shell structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the roll structure of this utility model.

[0022] The following are the labels in the diagram: 1. Bracket; 101. Cylinder; 2. Side shell; 201. Servo motor; 202. Drive gear; 203. Synchronous belt; 204. Synchronous drum; 3. Feeding plate; 301. Guide roller; 302. Limiting block; 303. Storage groove; 304. Spring compression component; 305. Connecting groove; 306. Guide slope; 4. Fabric; 5. Roller; 501. Auxiliary gear; 502. Rotating shaft; 503. Annular groove; 6. Limiting band; 601. Fixing screw. Detailed Implementation

[0023] like Figures 1 to 4 As shown, the present invention relates to a protective film feeding mechanism for a coating machine, comprising a side shell 2, a feeding plate 3, and a roll 5. Two feeding plates 3 are provided, and their inner ends are rotatably mounted on both sides of a support 1 via rotating shafts. Cylinders 101 are rotatably mounted on the upper ends of both sides of the support 1 via hinges, and the lower ends of the inner rods of the cylinders 101 are rotatably connected to the middle of the feeding plate 3 via hinges. The side shell 2 is bolted to the outside of one side of the feeding plate 3. The two feeding plates 3 are connected by guide rollers 301. Synchronous cylinders 204 are rotatably mounted on both ends of the side shell 2, and the two synchronous cylinders 204 are connected by a synchronous belt 203. A drive gear 202 is fixed on the synchronous cylinder 204 at the outer end of the side shell 2. A servo motor 201 is fixed on the outer side of the side shell 2, and the output shaft of the servo motor 201... The inner end of the synchronous drum 204 is connected. An auxiliary tooth 501 is fixed on the outer end of the rotating shaft 502 at one end of the drum 5. The auxiliary tooth 501 meshes with the drive tooth 202. The starting cylinder 101 drives the feeding plate 3 to deflect downward. Then, the rotating shafts 502 at both ends of the drum 5 are guided into the connecting groove 305 and then locked in place, so that the auxiliary tooth 501 is connected with the drive tooth 202. The servo motor 201 is started to start the synchronous drum 204. The two synchronous drums 204 cooperate with the synchronous belt 203 to complete the transmission, driving the drive tooth 202 to rotate. The drive tooth 202 meshes with the auxiliary tooth 501 to drive the drum 5 to rotate. The drum 5 releases the wound fabric 4. Through the above structural design, the device can adjust the height of the feeding point, reduce the feeding height, reduce the difficulty of manual feeding, reduce the risk, and ensure the safety of operation.

[0024] like Figures 3 to 6As shown, the present invention relates to a protective film feeding mechanism for a coating machine, comprising a side cover 2, a feeding plate 3, and a roll 5. A connecting groove 305 is provided on the upper side of the outer end of the feeding plate 3. Fabric 4 is wound onto the roll 5. Rotating shafts 502 are fixed to both ends of the roll 5, and the rotating shafts 502 are engaged and limited within the connecting groove 305. A receiving groove 303 is provided at the bottom of the connecting groove 305, and a limiting block 302 is rotatably installed at the upper opening of the receiving groove 303 via a rotating shaft. A spring-loaded element 304 is provided inside the receiving groove 303. 4. The spring-loaded component 304 is C-shaped, and its upper end is connected to the bottom of the limiting block 302. The spring-loaded component 304 is made of spring steel. The upper end of the limiting block 302 is provided with a guide slope 306, and the inclined surface of the guide slope 306 corresponds to the material inlet of the connecting groove 305. The arc surface of the inner end of the limiting block 302 is adapted to the rotating shaft 502. The bottom of the connecting groove 305 is designed with a round opening, and a limiting band 6 is provided at the bottom of the connecting groove 305. The upper end connecting block of the limiting band 6 is threadedly installed on the top of the round opening of the connecting groove 305 by a fixing screw 601. The lower end of 6 is fixed to the inner arc surface of the limiting block 302. The limiting band 6 is made of non-woven fabric. An annular groove 503 is provided on the rotating shaft 502, and the limiting band 6 is clamped in the annular groove 503. When the drum 5 is feeding, the rotating shafts 502 at both ends are inserted into the connecting grooves 305 of the two feeding plates 3 respectively. Then, the drum 5 is manually pushed so that the rotating shaft 502 squeezes the guide slope 306. During the squeezing process, the limiting block 302 deflects downward. When the rotating shaft 502 enters the inner side of the limiting band 6, the downward pressure disappears, and the spring-loaded component 304 rebounds to drive the limiting band 6. The positioning block 302 resets, and the inner arc surface of the positioning block 302 fits against the rotating shaft 502. At the same time, the limiting band 6 unfolds when the positioning block 302 deflects downward. After the positioning block 302 resets, the limiting band 6 is clamped in the annular groove 503 of the rotating shaft 502. Through the above structural design, the positioning block 302 initially limits the rotating shaft 502, and at the same time, the limiting band 6 provides lateral limitation for the rotating shaft 502, preventing lateral displacement of the rotating shaft 502 during rotation from causing misalignment and separation between the drive gear 202 and the auxiliary gear 501, thus ensuring the quality of normal operation of the equipment.

[0025] Working principle: This embodiment provides a protective film feeding mechanism for a coating machine. The starting cylinder 101 drives the feeding plate 3 to deflect downwards, then the rotating shafts 502 at both ends of the roll 5 are guided into the connecting groove 305, and then locked in place, causing the auxiliary gear 501 to engage with the drive gear 202. The servo motor 201 is started to activate the synchronous drum 204. The two synchronous drums 204, in conjunction with the synchronous belt 203, complete the transmission, driving the drive gear 202 to rotate. The drive gear 202 meshes with the auxiliary gear 501, driving the roll 5 to rotate. The roll 5 releases the wound fabric 4. When the roll 5 is feeding... The rotating shafts 502 at both ends are inserted into the connecting grooves 305 of the two feeding plates 3 respectively. Then, the drum 5 is manually pushed so that the rotating shafts 502 squeeze the guide slope 306. During the squeezing process, the limiting block 302 deflects downward. When the rotating shaft 502 enters the inner side of the limiting band 6, the downward pressure disappears and the limiting block 302 is reset by the spring-loaded component 304. The inner arc surface of the limiting block 302 is in contact with the rotating shaft 502. At the same time, the limiting band 6 unfolds when the limiting block 302 deflects downward. When the limiting block 302 is reset, the limiting band 6 is clamped in the annular groove 503 of the rotating shaft 502.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A protective film feeding mechanism of a coating machine, comprising a side protective shell (2), a feeding plate (3) and a roll (5), characterized in that: There are two feeding plates (3), and the inner ends of the two feeding plates (3) are respectively rotatably installed on both sides of the inside of the bracket (1) through a rotating shaft. The upper ends of both sides of the bracket (1) are rotatably installed with cylinders (101) through a hinge structure. The lower end of the inner rod of the cylinder (101) is rotatably connected to the middle of the feeding plate (3) through a hinge. The side shell (2) is fixed to the outside of the feeding plate (3) on one side by bolts. The two feeding plates (3) are connected by guide rollers (301). The upper side of the outer end of the feeding plate (3) is provided with a connecting groove (305). The roll (5) is wound with fabric (4). Both ends of the roll (5) are fixed with rotating shafts (502), and the rotating shafts (502) are locked and limited in the connecting grooves (305).

2. The protective film feeding mechanism of a coating machine according to claim 1, characterized in that: Synchronous cylinders (204) are rotatably installed at both ends of the inner side shell (2), and the two synchronous cylinders (204) are connected by a synchronous belt (203). A drive tooth (202) is fixed on the synchronous cylinder (204) at the outer end of the side shell (2), and a servo motor (201) is fixed on the outer side of the side shell (2), and the output shaft of the servo motor (201) is connected to the synchronous cylinder (204) at the inner end.

3. The protective film feeding mechanism of a coating machine according to claim 2, characterized in that: The bottom of the connecting groove (305) is provided with a storage groove (303), and a limiting block (302) is rotatably installed at the upper opening of the storage groove (303) via a rotating shaft. The storage groove (303) is provided with a spring-loaded component (304), which is C-shaped, and the upper end of the spring-loaded component (304) is connected to the bottom of the limiting block (302).

4. The protective film feeding mechanism of a coating machine according to claim 3, characterized in that: The upper end of the limiting block (302) is provided with a guide slope (306), and the inclined surface of the guide slope (306) corresponds to the feeding part of the connecting groove (305). The arc surface of the inner end of the limiting block (302) is adapted to the rotating shaft (502).

5. The protective film feeding mechanism of a coating machine according to claim 4, characterized in that: The bottom of the connecting groove (305) is designed with a round opening, and the bottom of the connecting groove (305) is provided with a limiting band (6). The upper end connecting block of the limiting band (6) is threadedly installed on the top of the round opening of the connecting groove (305) by a fixing screw (601), and the lower end of the limiting band (6) is fixed on the inner arc surface of the limiting block (302).

6. The protective film feeding mechanism of a coating machine according to claim 5, characterized in that: The rotating shaft (502) has an annular groove (503) and the limiting band (6) is clamped in the annular groove (503).

7. The protective film feeding mechanism of a coating machine according to claim 6, characterized in that: An auxiliary tooth (501) is fixed on the outer end of the rotating shaft (502) at one end of the drum (5), and the auxiliary tooth (501) meshes with the driving tooth (202).