Film attaching machine with film pre-pull-out structure

Abstract

The utility model provides a film attaching machine with a film pre-drawing structure. The film attaching machine comprises a rack, a feeding roller assembly, a supporting roller and a guide roller, the feeding roller assembly is connected to the rack, two supporting plates which are symmetrical in the front-back direction are fixed to the rack, the two ends of the supporting roller are connected to the upper end of one supporting plate respectively, the film roll is rotationally connected to the outer portion of the supporting roller in a sleeving mode, and the two ends of the guide roller are rotationally connected with the inner side of the lower portion of one supporting plate respectively. The film attaching machine further comprises a push rod and a driving assembly. The push rod is arranged on the inner side of the film between the film roll and the guide roller and abuts against the film, and the two ends of the push rod are connected with the driving end of the driving assembly; when the driving assembly drives the push rod to be away from the film roll, the push rod is used for pushing the film to pull the film out of the film roll in advance; according to the utility model, the film can be pulled out from the film roll in advance, so that the film can be conveniently supplied and conveyed by the feeding roller assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive exterior rearview mirror electric heating sheet film application equipment, specifically, to a film application machine with a film pre-pull-out structure. Background Technology

[0002] With the continuous development of the automotive industry, most car exterior rearview mirrors on the market now have electric heating function. That is, there is an electric heating element attached to the back of the mirror glass in the car exterior rearview mirror. When the electric heating element heats up, it can heat the mirror glass in the car exterior rearview mirror, thereby evaporating the rainwater adhering to the front of the mirror glass, so as to ensure the driver's vision.

[0003] To facilitate the fixing of the electric heating element to the rear side of the mirror glass in a car's exterior rearview mirror, an adhesive film needs to be attached to the electric heating element during the manufacturing process. This adhesive film is used to bond and fix the electric heating element to the rear side of the mirror glass in the car's exterior rearview mirror. In the prior art, the process of attaching the adhesive film to the electric heating element requires an adhesive film attaching machine. For example, Chinese Patent Publication No. CN221090005U discloses an adsorption component for attaching adhesive to a heating element. This equipment is used to attach the adhesive film to the electric heating element. When using this equipment, the adhesive film on the film roll is pulled out from the film roll by a feeding roller assembly. However, because the adhesive film has a certain degree of stickiness, and there is adhesive force between each layer of adhesive film on the film roll, it is difficult to pull the adhesive film out of the film roll by relying solely on the feeding roller assembly to pull and transport the adhesive film. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a film attaching machine with a film pre-pulling structure, which can pre-pull the film from the film roll, thereby facilitating the supply and conveying of the film by the feeding roller assembly.

[0005] This utility model provides a film attaching machine with a film pre-pulling structure, including a frame, a feeding roller assembly, a support roller, and a guide roller. The feeding roller assembly is connected to the frame, and two symmetrical support plates are fixed on the frame. The two ends of the support roller are respectively connected to the upper end of one of the support plates. The support roller supports the film roll, which is rotatably sleeved on the outside of the support roller. The two ends of the guide roller are rotatably connected to the inner side of the lower part of one of the support plates. The film fed from the film roll is guided by the guide roller and fed into the feeding roller assembly. The film attaching machine also includes a push rod and a drive assembly. The push rod is located on the inner side of the film between the film roll and the guide roller and abuts against the film. Both ends of the push rod are connected to the drive end of the drive assembly. The drive assembly is used to drive the push rod closer to or away from the film roll. When the drive assembly drives the push rod away from the film roll, the push rod pushes the film to pre-pull the film out of the film roll.

[0006] By adopting the above structure, this utility model, under the combined action of the push rod and the drive assembly, when the drive assembly drives the push rod away from the film roll, the push rod can push the film so that the film is pulled out from the film roll in advance. Thus, when the subsequent feeding roller assembly pulls the film and conveys the film, the feeding roller assembly can supply and convey the film more smoothly.

[0007] In one possible implementation, the drive assembly includes two cylinders symmetrically arranged front to back, each cylinder being fixed to the outer wall of a support plate on the corresponding side. The two ends of a push rod are respectively connected to the end of the piston rod of one of the cylinders. The two cylinders are used to drive the push rod closer to or away from the film roll. With this drive assembly, when the piston rods in the two cylinders extend synchronously, the two cylinders can drive the push rod away from the film roll. At this time, the push rod can push the film to pre-pull it out of the film roll. When the piston rods of the two cylinders retract synchronously, the two cylinders can drive the push rod to move and reset. This drive assembly has the advantages of simple structure and high reliability.

[0008] In one possible implementation, a connecting seat is fixed on the outer wall of each support plate, and each cylinder is axially inserted into the connecting seat on the corresponding side and fixed to the connecting seat. With this structure, each cylinder can be reliably fixed on the outer wall of the support plate on the corresponding side, and the connecting seat can be fixed to the outer wall of the support plate by welding. After the cylinder is inserted into the connecting seat on the corresponding side, it can be tightened by bolts inserted into the side wall of the connecting seat and threaded to the connecting seat, with the inner end of the bolt abutting against the outer wall of the cylinder.

[0009] In one possible implementation, a ball joint is fixed to the end of the piston rod of each cylinder, and the two ends of the push rod are connected to the ball joints of one of the ball joints respectively; with this structure, the two ends of the push rod can be reliably movably connected to the ends of the piston rods of the two cylinders.

[0010] In one possible implementation, one of the support plates has an opening slot at its upper end. One end of the support roller is inserted into the opening slot, and a rotating shaft is radially inserted through one end of the support roller. The two ends of the rotating shaft pass through the support plates located on both sides of the opening slot and are rotatably connected to the support plates. The other end of the support roller is locked to the upper end of another support plate. With this structure, since one end of the support roller is inserted into the opening slot and rotatably connected to the support plate on that side through the rotating shaft, and the other end of the support roller is locked to the upper end of another support plate, when the other end of the support roller is unlocked, the support roller can rotate relative to one of the support plates by relying on the rotating shaft. At this time, the inner support cylinder of the film roll that has finished feeding film can be removed from the support roller, and a new film roll can be easily assembled onto the support roller. Then, the other end of the support roller can be re-locked to the upper end of the other support plate. In the above process of changing the film roll, it is not necessary to completely disassemble the support roller, thus having the advantage of convenient film roll replacement.

[0011] In one possible implementation, a pressure block is fixed to the upper end of another support plate, and the other end of the support roller is pressed against the upper end of the other support plate by the pressure block. The pressure block is fixed to the upper end of the other support plate by two screws that are symmetrically arranged on the left and right. With this structure, under the action of the pressure block, the other end of the support roller can be reliably pressed against the upper end of the other support plate, that is, the other end of the support roller can be reliably locked against the upper end of the other support plate. When the screws are removed and the pressure block is removed from the upper end of the other support plate, the locking of the other end of the support roller can be released. In addition, the lower end of the pressure block forms a semi-circular upper clamping groove, and the upper end of the other support plate forms a semi-circular lower clamping groove. The other end of the support roller is engaged with the upper and lower clamping grooves and radially limited, thereby improving the reliability of the pressure block pressing the other end of the support roller against the other support plate. Attached Figure Description

[0012] Figure 1 This is the first three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle;

[0014] Figure 3 This is a second three-dimensional structural diagram of the present invention. Detailed Implementation

[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] See Figure 1-3 As shown in the figure, this application discloses a film attaching machine with a film pre-pulling structure, including a frame 1, a feeding roller assembly 2, a support roller 3, and a guide roller 4. The feeding roller assembly 2 is connected to the frame 1, and two symmetrical support plates 5 are fixed on the frame 1. The two ends of the support roller 3 are respectively connected to the upper end of one of the support plates 5. The support roller 3 is used to support a film roll 6, which is rotatably sleeved on the outside of the support roller 3. The two ends of the guide roller 4 are respectively rotatably connected to the inner side of the lower part of one of the support plates 5. The film 61 fed from the film roll 6 is guided by the guide roller 4 and then fed into the feed roller assembly 2. The film attaching machine also includes a push rod 7 and a drive assembly. The push rod 7 is located inside the film 61 between the film roll 6 and the guide roller 4 and abuts against the film 61. Both ends of the push rod 7 are connected to the drive end of the drive assembly. The drive assembly is used to drive the push rod 7 to move closer to or away from the film roll 6. When the drive assembly drives the push rod 7 away from the film roll 6, the push rod 7 is used to push the film 61 so that the film 61 is pulled out from the film roll 6 in advance.

[0020] The drive assembly includes two cylinders 8 arranged symmetrically front to back. Each cylinder 8 is fixed to the outer wall of the support plate 5 on the corresponding side. The two ends of the push rod 7 are respectively connected to the end of the piston rod of one of the cylinders 8. The two cylinders 8 are used to drive the push rod 7 to move closer to or away from the film roll. With this drive assembly, when the piston rods in the two cylinders extend synchronously, the two cylinders can drive the push rod away from the film roll. At this time, the push rod can push the film so that the film 61 is pulled out from the film roll 6 in advance. When the piston rods of the two cylinders retract synchronously, the two cylinders can drive the push rod to move and reset. This drive assembly has the advantages of simple structure and high reliability.

[0021] Each support plate 5 has a connecting seat 81 fixed on its outer wall. Each cylinder 8 is axially inserted into the corresponding connecting seat 81 and fixed to it. With this structure, each cylinder can be reliably fixed to the outer wall of the support plate on the corresponding side. The connecting seat can be fixed to the outer wall of the support plate by welding. After the cylinder is inserted into the corresponding connecting seat, it can be tightened by bolts that are threaded into the side wall of the connecting seat and connected to it. The inner end of the bolt is in close contact with the outer wall of the cylinder.

[0022] Each cylinder 8 has a ball joint 82 fixed to the end of its piston rod, and the two ends of the push rod 7 are connected to the ball joints in one of the ball joints 82 respectively. With this structure, the two ends of the push rod can be reliably movably connected to the ends of the piston rods of the two cylinders.

[0023] One of the support plates 5 has an opening slot 51 at its upper end. One end of the support roller 3 is inserted into the opening slot 51, and a rotating shaft 31 is radially inserted through one end of the support roller 3. Both ends of the rotating shaft 31 are inserted into the support plates 5 located on both sides of the opening slot 51 and are rotatably connected to the support plates 5. The other end of the support roller 3 is locked to the upper end of another support plate 5. With this structure, since one end of the support roller is inserted into the opening slot and rotatably connected to the support plate on that side through the rotating shaft, and the other end of the support roller is locked to the upper end of another support plate, when the other end of the support roller is unlocked, the support roller can rotate relative to one of the support plates by relying on the rotating shaft. At this time, the inner support cylinder of the film roll that has finished feeding film can be removed from the support roller, and a new film roll can be easily assembled onto the support roller. Then, the other end of the support roller can be re-locked to the upper end of the other support plate. In the above process of changing the film roll, it is not necessary to completely disassemble the support roller, thus having the advantage of convenient film roll replacement.

[0024] A pressure block 9 is fixed to the upper end of another support plate 5. The other end of the support roller 3 is pressed against the upper end of the other support plate 5 by the pressure block 9. The pressure block 9 is fixed to the upper end of the other support plate 5 by two screws 91 that are symmetrical about left and right. With this structure, under the action of the pressure block, the other end of the support roller can be reliably pressed against the upper end of the other support plate, that is, the other end of the support roller can be reliably locked against the upper end of the other support plate. When the screws are removed and the pressure block is removed from the upper end of the other support plate, the locking of the other end of the support roller can be released. In addition, the lower end of the pressure block forms a semi-circular upper clamping groove, and the upper end of the other support plate forms a semi-circular lower clamping groove. The other end of the support roller is fitted with the upper and lower clamping grooves and radially limited, thereby improving the reliability of the pressure block pressing the other end of the support roller against the other support plate.

[0025] In operation, the feeding roller assembly can intermittently pull and transport the film. When the feeding roller assembly stops pulling and transporting the film, the drive assembly can drive the push rod away from the film roll. At this time, the push rod can push the film so that the film is pre-pulled out of the film roll. When the feeding roller assembly starts pulling and transporting the film, the drive assembly can drive the push rod to move synchronously and reset. At this time, the film pre-pulled out of the film roll can be pulled and transported by the feeding roller assembly. Thus, the feeding roller assembly can supply and transport the film more smoothly.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A film attaching machine with a film pre-pulling structure, comprising a frame (1), a feeding roller assembly (2), a support roller (3), and a guide roller (4); the feeding roller assembly (2) is connected to the frame (1), and two symmetrical support plates (5) are fixed on the frame (1). The two ends of the support roller (3) are respectively connected to the upper end of one of the support plates (5). The support roller (3) is used to support a film roll (6). The film roll (6) is rotatably sleeved on the outside of the support roller (3). The two ends of the guide roller (4) are respectively rotatably connected to the inner side of the lower part of one of the support plates (5). The film (61) fed out by the film roll (6) is guided by the guide roller (4) and fed into the feeding roller assembly (2); characterized in that: The film attaching machine also includes a push rod (7) and a drive assembly; the push rod (7) is located inside the film (61) between the film roll (6) and the guide roller (4) and abuts against the film (61); both ends of the push rod (7) are connected to the drive end of the drive assembly; the drive assembly is used to drive the push rod (7) to move closer to or away from the film roll (6); when the drive assembly drives the push rod (7) away from the film roll (6), the push rod (7) is used to push the film (61) so that the film (61) is pulled out from the film roll (6) in advance.

2. The film attaching machine with a film pre-stretching structure according to claim 1, characterized in that: The drive assembly includes two cylinders (8) arranged symmetrically in front and behind. Each cylinder (8) is fixed on the outer wall of the support plate (5) on the corresponding side. The two ends of the push rod (7) are respectively connected to the end of the piston rod of one of the cylinders (8). The two cylinders (8) are used to drive the push rod (7) to move closer to or away from the film roll (6).

3. The film attaching machine with a film pre-stretching structure according to claim 2, characterized in that: Each of the support plates (5) has a connecting seat (81) fixed on its outer wall. Each cylinder (8) is axially inserted into the connecting seat (81) on the corresponding side and fixed to the connecting seat (81).

4. The film attaching machine with a film pre-stretching structure according to claim 2 or 3, characterized in that: Each of the cylinders (8) has a ball joint (82) fixed to the end of the piston rod, and the two ends of the push rod (7) are respectively connected to the ball joint (82).

5. The film attaching machine with a film pre-stretching structure according to claim 1, characterized in that: One of the support plates (5) has an opening groove (51) at its upper end. One end of the support roller (3) is inserted into the opening groove (51). One end of the support roller (3) is radially connected to a rotating shaft (31). Both ends of the rotating shaft (31) are inserted into the support plates (5) located on both sides of the opening groove (51) and are rotatably connected to the support plates (5). The other end of the support roller (3) is locked to the upper end of another support plate (5).

6. The film attaching machine with a film pre-stretching structure according to claim 5, characterized in that: A pressure block (9) is fixed to the upper end of another support plate (5). The other end of the support roller (3) is pressed against the upper end of another support plate (5) by the pressure block (9). The pressure block (9) is fixed to the upper end of another support plate (5) by two screws (91) that are symmetrical about left and right.

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