An adsorption roller and a laminator

Abstract

The application provides an adsorption roller and a laminating machine. The adsorption roller comprises a main roller shaft, a negative pressure channel is arranged in the middle of the main roller shaft, and a negative pressure hole in communication with the negative pressure channel is arranged on the main roller shaft; a rotating roller is rotatably installed on the main roller shaft, and a plurality of rotating adsorption holes are arranged on the rotating roller. The rotating roller is rotatably installed on the main roller shaft, and a film belt can be transferred around the rotating roller. When the main roller shaft is connected with a negative pressure device of the laminating machine, negative pressure adsorption force is generated in the negative pressure channel, and the film belt is adsorbed through the negative pressure hole and the rotating adsorption hole. During the process of driving the film belt to move by a feeding roll and a receiving roll, the rotating adsorption holes on the rotating roller can provide adsorption power for the film belt, so that the film belt can be straightened, thereby effectively avoiding the bending deformation of the film belt in the stroke between the feeding roll and the receiving roll, and the flatness of the film belt is improved. The laminating machine adopting the adsorption roller can provide additional power for the transmission of the film belt, thereby improving the feeding quality and precision of the film belt.

Description

Technical Field

[0001] This application belongs to the field of film lamination technology, and more specifically, relates to an adsorption roller and a laminating machine using the adsorption roller. Background Technology

[0002] The film feeding mechanism of the laminator uses a combination of a feed roll and a take-up roll to unwind and feed the film belt. The feed roll is driven by a feed roller to unwind the film belt, and the take-up roll is driven by a take-up roller to rewind the film belt. The film feeding mechanism is typically equipped with multiple guide rollers positioned between the feed roll and the take-up roll. The film belt passes sequentially around the feed roll, the guide rollers, and the take-up roll to achieve film belt transport.

[0003] However, the conveyor path of the film belt is relatively long. Since multiple guide rollers cannot provide power, the conveyor power of the film belt comes entirely from the feed roller and the take-up roller. This will cause the film belt to bend or become uneven during the travel between the feed roll and the take-up roll, thus affecting the flatness of the film belt feeding. Utility Model Content

[0004] The purpose of this application is to provide an adsorption roller and a laminating machine to solve the problem in the related art where the transmission power of the film belt is provided only by the feeding roller and the take-up roller, which causes the film belt to bend or become uneven during the stroke between the feeding roll and the take-up roll.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows:

[0006] On the one hand, an adsorption roller is provided, comprising:

[0007] The main roller has a negative pressure channel in the middle, the negative pressure channel is arranged along the axial direction of the main roller, and the main roller has a negative pressure hole communicating with the negative pressure channel;

[0008] A rotating roller is rotatably mounted on the main roller shaft. The rotating roller has multiple rotating adsorption holes for communicating with the negative pressure holes to adsorb the membrane belt. The multiple rotating adsorption holes are arranged in a circumferential ring array along the rotating roller.

[0009] In one embodiment, a limiting frame is installed on the main roller shaft. The limiting frame is located between the outer circumferential surface of the main roller shaft and the inner circumferential surface of the rotating roller. The middle part of the limiting frame is provided with a limiting channel that connects the negative pressure hole and a plurality of the rotating adsorption holes.

[0010] In one embodiment, the limiting frame includes two limiting bases arranged in parallel and spaced apart, and two limiting connecting seats respectively connecting the two ends of the two limiting bases. The two limiting bases and the two limiting connecting seats are respectively installed on the main roller shaft, and the two limiting bases and the two limiting connecting seats enclose and form the limiting channel.

[0011] In one embodiment, the limiting channel has a fan-shaped structure, and the central angle of the limiting channel ranges from 60° to 120°.

[0012] In one embodiment, the rotating roller includes a rotating drum sleeved on the main roller shaft, a first rotating seat mounted on one end of the rotating drum, and a second rotating seat mounted on the other end of the rotating drum. The first rotating seat and the second rotating seat are rotatably mounted on the main roller shaft, respectively. A plurality of rotating adsorption holes are arranged in a ring array on the rotating drum.

[0013] In one embodiment, the first rotating seat has a through hole through which the main roller shaft passes, and a first bearing is installed in the through hole.

[0014] In one embodiment, the first rotating seat is provided with a receiving groove, and the bottom surface of the receiving groove is provided with the through hole, and the first bearing is installed in the receiving groove.

[0015] In one embodiment, the second rotating seat includes a rotating base, a first rotating part mounted on one end of the rotating base, and a second rotating part mounted on the other end of the rotating base, wherein the first rotating part is inserted into the negative pressure channel.

[0016] In one embodiment, a second bearing is rotatably mounted on the first rotating part, and the second bearing extends into the negative pressure channel.

[0017] On the other hand, a laminating machine is provided, including the adsorption roller provided in any of the above embodiments.

[0018] The adsorption roller and laminator provided in this application have at least the following beneficial effects: This application creates a negative pressure channel in the middle of the main roller shaft and negative pressure holes on the main roller shaft. A rotating roller is rotatably mounted on the main roller shaft, and the film belt can be transferred around the rotating roller. When the main roller shaft is connected to the negative pressure device of the laminator, the negative pressure channel generates negative pressure adsorption force, and adsorbs the film belt through the negative pressure holes and rotating adsorption holes. As the unloading and reloading rolls drive the film belt to move, the rotating adsorption holes on the rotating roller can provide adsorption power for the film belt, thus straightening the film belt and effectively preventing bending deformation of the film belt during the stroke between the unloading and reloading rolls, thereby improving the flatness of the film belt. The laminator using this adsorption roller can provide additional power for the transmission of the film belt, thereby improving the feeding quality and accuracy of the film belt. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the adsorption roller provided in the embodiments of this application;

[0021] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0022] Figure 3 A cross-sectional schematic diagram of the adsorption roller and the film belt in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of the limiting frame provided in the embodiments of this application;

[0024] Figure 5 This is an exploded view of the rotating roller provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the first rotating seat provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of the second rotating seat provided in an embodiment of this application.

[0027] The main markings in the attached figures are as follows:

[0028] 1. Main roller shaft; 11. Negative pressure channel; 12. Negative pressure hole;

[0029] 2. Rotating roller; 21. Rotating drum; 210. Rotating suction hole; 22. First rotating seat; 220. Through hole; 221. First bearing; 222. Receiving groove; 23. Second rotating seat; 231. Rotating base; 232. First rotating part; 233. Second rotating part; 234. Second bearing;

[0030] 3. Limiting frame; 31. Limiting channel; 32. Limiting base; 33. Limiting connector;

[0031] 4. Membrane strip. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0035] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrase "in one embodiment" or "in some embodiments" appears in various places throughout the specification, and not all references are to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0038] Please see Figures 1 to 3 The adsorption roller provided in this application embodiment will now be described. The adsorption roller includes a main roller shaft 1 and a rotating roller 2. A negative pressure channel 11 is provided in the middle of the main roller shaft 1, and the negative pressure channel 11 is arranged along the axial direction of the main roller shaft 1. A negative pressure hole 12 communicating with the negative pressure channel 11 is provided on the main roller shaft 1. The rotating roller 2 is rotatably mounted on the main roller shaft 1. Multiple rotating adsorption holes 210 are provided on the rotating roller 2, arranged in a circumferential annular array, and communicate with the negative pressure hole 12. The membrane belt 4 can move around the upper surface of the rotating roller 2, and at least some of the rotating adsorption holes 210 interact with the membrane belt 4 to achieve adsorption and fixation of the membrane belt 4. This structure, by providing a negative pressure channel 11 in the middle of the main roller shaft 1 and negative pressure holes 12 on the main roller shaft 1, allows the membrane belt 4 to be moved around the rotating roller 2, enabling its transport. When the main roller 1 is connected to the negative pressure device of the laminating machine, the negative pressure channel 11 generates negative pressure adsorption force, and achieves adsorption and fixation of the film belt 4 through the negative pressure hole 12 and the rotating adsorption hole 210. As the unloading roll and the take-up roll drive the film belt 4 to move, the rotating adsorption hole 210 on the rotating roller 2 can provide adsorption power for the film belt 4, so as to straighten the film belt 4, thereby effectively avoiding bending deformation of the film belt 4 during the stroke between the unloading roll and the take-up roll, and thus improving the flatness of the film belt 4.

[0039] In one embodiment, see Figures 2 to 4 As a specific embodiment of the adsorption roller provided in this application, a limiting frame 3 is installed on the main roller shaft 1. The limiting frame 3 is located between the outer circumferential surface of the main roller shaft 1 and the inner circumferential surface of the rotating roller 2. A limiting channel 31 is provided in the middle of the limiting frame 3, which connects the negative pressure hole 12 and a plurality of rotating adsorption holes 210. The negative pressure hole 12 is directly opposite the position where the membrane belt 4 contacts the rotating roller 2. With this structure, the negative pressure acting on the membrane belt 4 can be directionally limited by the limiting channel 31 of the limiting frame 3, that is, the negative pressure is limited to the position above the rotating roller 2, so as to realize the directional adsorption of the membrane belt 4 and help improve the transfer effect of the membrane belt 4.

[0040] In one embodiment, there are multiple negative pressure holes 12, which are spaced apart along the axial direction of the main roller shaft 1 and located in the area corresponding to the limiting channel 31. This structure, by providing multiple negative pressure holes 12, can increase the negative pressure and improve the negative pressure adsorption capacity of the membrane belt 4.

[0041] In one embodiment, see Figure 4 As a specific embodiment of the adsorption roller provided in this application, the limiting frame 3 includes two limiting bases 32 and two limiting connecting seats 33. The two limiting bases 32 are arranged in parallel and spaced apart, and the two limiting connecting seats 33 are respectively connected to the two ends of the two limiting bases 32. The two limiting bases 32 and the two limiting connecting seats 33 are respectively installed on the main roller shaft 1, and the two limiting bases 32 and the two limiting connecting seats 33 enclose a limiting channel 31. The two limiting bases 32 and the two limiting connecting seats 33 are detachably connected to the main roller shaft 1. Specifically, each limiting base 32 can be locked to the main roller shaft 1 with screws; similarly, each limiting connecting seat 33 can be locked to the main roller shaft 1 with screws. This structure, by setting the limiting frame 3 as two limiting bases 32 and two limiting connecting seats 33, makes it easy to assemble and disassemble the limiting frame 3, thereby adjusting the volume of the limiting channel 31 to adapt to different sizes of film belts 4.

[0042] In one embodiment, see Figure 3 In one specific embodiment of the adsorption roller provided in this application, the limiting channel 31 has a fan-shaped structure, and the central angle of the limiting channel 31 ranges from 60° to 120°. Specifically, the opening angle of the limiting channel 31 is 60° to 120°. This structure, by setting the limiting channel 31 in an open shape, gradually increases the opening area of ​​the limiting channel 31 radially from the main roller shaft 1, thereby increasing the contact area with the membrane belt 4 and thus increasing the negative pressure adsorption force on the membrane belt 4. The central angle of the limiting channel 31 can be 60°, 90°, 120°, etc., and is not limited to a single value.

[0043] In one embodiment, see Figure 2 and Figure 5 As a specific embodiment of the adsorption roller provided in this application, the rotating roller 2 includes a rotating drum 21 sleeved on the main roller shaft 1, a first rotating seat 22 mounted on one end of the rotating drum 21, and a second rotating seat 23 mounted on the other end of the rotating drum 21. The first rotating seat 22 and the second rotating seat 23 are respectively rotatably mounted on the main roller shaft 1. A plurality of rotating adsorption holes 210 are arranged in a ring array on the rotating drum 21. In this structure, the rotating drum 21 can contact the membrane belt 4; by rotatably mounting the first rotating seat 22 and the second rotating seat 23 on the main roller shaft 1, the rotating drum 21 can be driven to rotate, thereby realizing the transfer of the membrane belt 4.

[0044] In one embodiment, see Figure 6 As a specific embodiment of the adsorption roller provided in this application, the first rotating seat 22 has a through hole 220 for the main roller shaft 1 to pass through, and a first bearing 221 is installed in the through hole 220. The first rotating seat 22 can be a flange. This structure, through the first bearing 221, can reduce the friction and wear between the first rotating seat 22 and the main roller shaft 1, thereby achieving rotational protection for the first rotating seat 22.

[0045] In one embodiment, see Figure 6 As a specific embodiment of the adsorption roller provided in this application, the first rotating seat 22 is provided with a receiving groove 222, and a through hole 220 is opened on the bottom surface of the receiving groove 222. The first bearing 221 is installed in the receiving groove 222. With this structure, the receiving groove 222 can realize the positioning and receiving of the first bearing 221, so as to improve the assembly and disassembly accuracy of the first bearing 221.

[0046] In one embodiment, see Figure 7 As a specific embodiment of the adsorption roller provided in this application, the second rotating seat 23 includes a rotating base 231, a first rotating part 232 mounted on one end of the rotating base 231, and a second rotating part 233 mounted on the other end of the rotating base 231. The first rotating part 232 is inserted into the negative pressure channel 11. The second rotating seat 23 can be a flange. With this structure, the second rotating part 233 can be rotatably mounted on the housing of the laminating machine, and the second rotating seat 23 can rotate on the main roller shaft 1, facilitating the assembly and disassembly of the second rotating seat 23.

[0047] In one embodiment, the first rotating seat 22 and the second rotating seat 23 are detachably connected to the rotating roller 21, specifically, the first rotating seat 22 and the rotating roller 21 can be fixed together by screws; similarly, the second rotating seat 23 and the rotating roller 21 can be fixed together by screws. This structure facilitates the disassembly, maintenance, and replacement of the rotating roller 2, thus adapting it to different sizes of film belts 4.

[0048] In one embodiment, see Figure 7 In one specific embodiment of the adsorption roller provided in this application, a second bearing 234 is rotatably mounted on the first rotating part 232, and the second bearing 234 extends into the negative pressure channel 11. This structure reduces frictional wear between the first rotating part 232 and the inner circumferential surface of the main roller shaft 1 through the second bearing 234, thereby protecting the rotation of the first rotating part 232. The number of second bearings 234 can be multiple, such as two or three, which improves the rotational effect of the first rotating part 232 relative to the main roller shaft 1.

[0049] This application also provides a laminating machine, including the adsorption roller provided in any of the above embodiments. The film feeding mechanism of the laminating machine may include a housing, a feeding roller rotatably mounted on the housing, a feeding roll mounted on the feeding roller, a feeding drive motor for driving the feeding roller to rotate, a receiving roller rotatably mounted on the housing, a receiving roll mounted on the receiving roller, and a receiving drive motor for driving the receiving roller to rotate. The feeding drive motor is connected to the feeding roller, and the receiving drive motor is connected to the receiving roller. The main roller shaft 1 of the adsorption roller is mounted on the housing, and the adsorption roller is located between the feeding roller and the receiving roller. The film belt 4 can be fed by the feeding roll, pass around the rotating roller 2 on the adsorption roller, and be received by the receiving roll. A negative pressure channel 11 is opened in the middle of the main roller shaft 1, and a negative pressure hole 12 is opened on the main roller shaft 1. The rotating roller 2 is rotatably mounted on the main roller shaft 1, and the film belt 4 can be transferred around the rotating roller 2. When the main roller 1 is connected to the negative pressure device of the laminator, the negative pressure channel 11 generates a negative pressure adsorption force, which adsorbs the film belt 4 through the negative pressure hole 12 and the rotating adsorption hole 210. As the unloading and reloading rolls drive the film belt 4 to move, the rotating adsorption hole 210 on the rotating roller 2 provides adsorption power for the film belt 4, thus straightening the film belt 4 and effectively preventing bending deformation of the film belt 4 during the stroke between the unloading and reloading rolls, thereby improving the flatness of the film belt 4. The laminator using this adsorption roller can provide additional power for the transmission of the film belt 4, thereby improving the feeding quality and accuracy of the film belt 4.

[0050] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adsorption roller, characterized in that, include: The main roller has a negative pressure channel in the middle, the negative pressure channel is arranged along the axial direction of the main roller, and the main roller has a negative pressure hole communicating with the negative pressure channel; A rotating roller is rotatably mounted on the main roller shaft. The rotating roller has multiple rotating adsorption holes for communicating with the negative pressure holes to adsorb the membrane belt. The multiple rotating adsorption holes are arranged in a circumferential ring array along the rotating roller.

2. The adsorption roller as described in claim 1, characterized in that: A limiting frame is installed on the main roller shaft. The limiting frame is located between the outer circumferential surface of the main roller shaft and the inner circumferential surface of the rotating roller. The middle part of the limiting frame is provided with a limiting channel that connects the negative pressure hole and a plurality of the rotating adsorption holes.

3. The adsorption roller as described in claim 2, characterized in that: The limiting frame includes two limiting bases arranged in parallel and spaced apart, and two limiting connecting seats that connect the two ends of the two limiting bases respectively. The two limiting bases and the two limiting connecting seats are respectively installed on the main roller shaft, and the two limiting bases and the two limiting connecting seats enclose and form the limiting channel.

4. The adsorption roller as described in claim 2, characterized in that: The limiting channel has a fan-shaped structure, and the central angle of the limiting channel ranges from 60° to 120°.

5. The adsorption roller as described in claim 1, characterized in that: The rotating roller includes a rotating drum sleeved on the main roller shaft, a first rotating seat installed at one end of the rotating drum, and a second rotating seat installed at the other end of the rotating drum. The first rotating seat and the second rotating seat are rotatably mounted on the main roller shaft, respectively. A plurality of rotating adsorption holes are arranged in a ring array on the rotating drum.

6. The adsorption roller as described in claim 5, characterized in that: The first rotating seat has a through hole through which the main roller shaft passes, and a first bearing is installed in the through hole.

7. The adsorption roller as described in claim 6, characterized in that: The first rotating seat is provided with a receiving groove, and the bottom surface of the receiving groove is provided with the through hole, and the first bearing is installed in the receiving groove.

8. The adsorption roller as described in claim 5, characterized in that: The second rotating seat includes a rotating base, a first rotating part installed at one end of the rotating base, and a second rotating part installed at the other end of the rotating base. The first rotating part is inserted into the negative pressure channel.

9. The adsorption roller as described in claim 8, characterized in that: A second bearing is rotatably mounted on the first rotating part, and the second bearing extends into the negative pressure channel.

10. A stacking machine, characterized in that: Includes the adsorption roller as described in any one of claims 1-9.

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