A coating machine film adsorption device

Abstract

This utility model relates to the field of membrane treatment technology, and in particular to a membrane adsorption device for a coating machine. The technical solution includes: a base, a lower adsorption mechanism, and an upper adsorption mechanism. The base is provided with a sliding rod, and a top plate is provided at the top of the sliding rod. The lower adsorption mechanism is fixedly mounted on the base, and the upper adsorption mechanism is slidably mounted on the sliding rod. The lower and upper adsorption mechanisms have identical structures, each including a displacement component, a negative pressure groove, a microporous plate, a blocking plate, and connecting nozzles. The microporous plate is fixedly mounted on the opening surface of the negative pressure groove, the blocking plates are symmetrically slidably mounted within the negative pressure groove, and the connecting nozzles are equidistantly positioned on the negative pressure groove. The displacement component controls the linear movement of the blocking plates within the negative pressure groove. This utility model, through the upper and lower opposing adsorption mechanisms combined with hydraulic pressing and an adjustable blocking plate structure, achieves the positioning and bonding of the membrane head and tail during membrane roll changing and provides stable adsorption for different membrane widths.

Description

Technical Field

[0001] This utility model relates to the field of membrane treatment technology, and in particular to a coating machine membrane adsorption device. Background Technology

[0002] In the production of roll materials such as films, paper, and metal foils, coating machines need to continuously coat and shape the substrate. Due to the limited length of the roll material, roll changes are unavoidable during production. To ensure production continuity, it is necessary to achieve rapid and accurate film splicing between the end of the old roll and the beginning of the new roll.

[0003] In existing technologies, there are two main methods for splicing films: one is manual operation, using double-sided tape or glue to splice the old film with the new film. This method relies on manual positioning, which is labor-intensive, inefficient, and prone to unevenness, misalignment, or air bubbles at the film joint, thus affecting the coating quality; the other is to use automated film splicing devices, some of which use negative pressure adsorption to achieve film positioning. However, the adsorption area is fixed and cannot be flexibly adjusted according to the film width, resulting in uneven adsorption when changing rolls of film with different widths, which can easily lead to problems such as film wrinkling and misalignment.

[0004] Therefore, we propose a coating machine film adsorption device to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a coating machine film adsorption device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a coating machine film adsorption device, comprising a base, a lower adsorption mechanism and an upper adsorption mechanism, wherein a slide rod is fixedly disposed on the base, a top plate is fixedly disposed at the top end of the slide rod, the lower adsorption mechanism is fixedly disposed on the base, and the upper adsorption mechanism is slidably disposed on the slide rod;

[0007] The lower adsorption mechanism and the upper adsorption mechanism have the same structure. Both include a displacement component, a negative pressure groove, a microporous plate, a blocking plate, and a connecting nozzle. The microporous plate is fixedly disposed on the opening surface of the negative pressure groove. The blocking plate is symmetrically slidably disposed in the negative pressure groove. The connecting nozzles are equidistantly disposed on the negative pressure groove. The displacement component is used to control the linear movement of the blocking plate in the negative pressure groove.

[0008] Preferably, a hydraulic cylinder is fixedly installed on the top plate, and the output end of the hydraulic cylinder is fixedly installed on the outer wall of the upper adsorption mechanism.

[0009] Preferably, the microporous plates of the lower adsorption mechanism and the upper adsorption mechanism are distributed opposite to each other, and the microporous plate of the upper adsorption mechanism is slidably inserted into the slide rod. The output end of the hydraulic cylinder is fixed to the outer wall of the negative pressure groove of the upper adsorption mechanism, and the outer wall of the negative pressure groove of the lower adsorption mechanism is fixed to the base.

[0010] Preferably, the displacement assembly comprises a pad, a connecting rod, a screw, a bushing, a screw seat, and a motor. The pad is fixedly disposed on the outer wall of the negative pressure groove, the bushing is fixedly disposed on the pad, the screw seat is coaxially rotatably disposed on the bushing, the screw is threadedly engaged with the inner wall of the screw seat, one end of the connecting rod is fixedly disposed on the end of the screw, and the other end of the connecting rod is fixedly disposed on the end of the plug plate protruding from the negative pressure groove.

[0011] Preferably, the motor is fixedly mounted on the pad, and the output gear of the motor is in a gear-tooth meshing state with the gear ring coaxially mounted on the outer wall of the screw seat.

[0012] Preferably, a rubber sealing structure is provided at the contact positions between the blocking plate and the negative pressure groove and the microporous plate.

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

[0014] In use, the coating machine film adsorption device of this utility model can be set at a designated position and connected to an external negative pressure pump structure through a connecting nozzle, so that negative pressure is generated in the negative pressure grooves of the lower adsorption mechanism and the upper adsorption mechanism. Then, it manifests as negative pressure adsorption force through the microporous plate. During the film roll changing process of the coating machine, the film tail of the old film is adsorbed and positioned on the upper microporous plate under the manual leveling action of the negative pressure adsorption personnel, and the film head of the new film is adsorbed and positioned on the lower microporous plate under the manual leveling action of the negative pressure adsorption personnel.

[0015] Connect an external power source, then apply a layer of double-sided adhesive to the surface of the new membrane head. Next, control the hydraulic cylinder to drive the microporous plate of the upper adsorption mechanism to move down and press against the microporous plate of the lower adsorption mechanism. During this process, the membrane tail of the old membrane and the membrane head of the new membrane are glued and fixed together by the double-sided adhesive, thereby using adsorption to assist in the connection between the membrane head and the membrane tail when changing the film roll.

[0016] During the above process, the motor works, driving the screw seat to rotate through the meshing action of the gear teeth. The screw engages with the screw seat through the threaded action, and the screw is not deflected due to the positional limitation of the connecting rod, the plug plate, etc. Under the principle of the lead screw, the screw drives the plug plate to move linearly. The personnel can dynamically adjust the distance between the two plug plates according to the width of the membrane material. When the two plug plates are close to each other, the plug plates compress and seal the negative pressure area inside the negative pressure groove, thereby reducing the negative pressure adsorption area of ​​the microporous plate.

[0017] Conversely, when the two blocking plates are far apart, the negative pressure adsorption area of ​​the microporous plate is increased, thus allowing the adsorption region to switch according to the membrane width.

[0018] This utility model uses an upper and lower opposing adsorption mechanism to adsorb the old membrane tail and the new membrane head respectively. Reliable positioning is achieved under the action of negative pressure adsorption force, avoiding human operation error and improving the membrane bonding accuracy. The upper adsorption mechanism is driven to move downward by a hydraulic cylinder, so that the old membrane and the new membrane can be smoothly bonded under the action of double-sided adhesive.

[0019] The adsorption mechanism is equipped with a blocking plate, which is linearly displaced by a screw drive. This allows for dynamic adjustment of the negative pressure adsorption area, enabling flexible switching of the adsorption zone according to the membrane width and improving the adaptability of the device. A rubber sealing structure is installed between the blocking plate and the negative pressure groove to ensure the airtightness of the negative pressure cavity, prevent air leakage, and improve adsorption stability. The microporous plate design ensures uniform adsorption distribution and avoids uneven local stress on the membrane. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram showing the structural distribution of the lower adsorption mechanism and the upper adsorption mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the displacement component structure of this utility model;

[0023] Figure 4 For the present utility model Figure 3 A partial cross-sectional structural diagram.

[0024] Figure label:

[0025] 1. Base; 2. Lower adsorption mechanism; 3. Upper adsorption mechanism; 4. Slide rod; 5. Hydraulic cylinder; 6. Top plate; 7. Displacement assembly; 701. Pad; 702. Connecting rod; 703. Screw; 704. Bushing; 705. Screw seat; 706. Motor; 8. Negative pressure groove; 9. Microporous plate; 10. Blocking plate; 11. Connecting nozzle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] like Figures 1-4 As shown, the present invention proposes a coating machine film adsorption device, comprising a base 1, a lower adsorption mechanism 2, and an upper adsorption mechanism 3. A slide rod 4 is fixedly mounted on the base 1, and a top plate 6 is fixedly mounted on the top of the slide rod 4. The lower adsorption mechanism 2 is fixedly mounted on the base 1, and the upper adsorption mechanism 3 is slidably mounted on the slide rod 4. The lower adsorption mechanism 2 and the upper adsorption mechanism 3 have the same structure, each including a displacement component 7, a negative pressure groove 8, a microporous plate 9, a blocking plate 10, and a connecting nozzle 11. The microporous plate 9 is fixedly mounted on the opening surface of the negative pressure groove 8, and the blocking plate 10 is symmetrically slidably mounted within the negative pressure groove 8. The connecting nozzle... 11 are equidistantly arranged on the negative pressure groove 8. The displacement component 7 is used to control the linear movement of the blocking plate 10 in the negative pressure groove 8. The device can be set at a designated position and connected to an external negative pressure pump suction structure through the connecting nozzle 11, so that negative pressure is generated in the negative pressure groove 8 of the lower adsorption mechanism 2 and the upper adsorption mechanism 3. Then, it is expressed as negative pressure adsorption force through the microporous plate 9. During the film roll changing process of the coating machine, the film tail of the old film is adsorbed and positioned on the upper microporous plate 9 under the manual leveling action of the negative pressure adsorption personnel, and the film head of the new film is adsorbed and positioned on the lower microporous plate 9 under the manual leveling action of the negative pressure adsorption personnel.

[0029] A hydraulic cylinder 5 is fixedly installed on the top plate 6. The output end of the hydraulic cylinder 5 is fixedly installed on the outer wall of the upper adsorption mechanism 3. The microporous plates 9 of the lower adsorption mechanism 2 and the upper adsorption mechanism 3 are distributed opposite to each other. The microporous plate 9 of the upper adsorption mechanism 3 is slidably inserted into the slide rod 4. The output end of the hydraulic cylinder 5 is fixed on the outer wall of the negative pressure groove 8 of the upper adsorption mechanism 3. The outer wall of the negative pressure groove 8 of the lower adsorption mechanism 2 is fixed on the base 1 and connected to an external power source. Then, a layer of double-sided adhesive is applied to the surface of the film head of the new film. Then, the hydraulic cylinder 5 is controlled to work to drive the microporous plate 9 of the upper adsorption mechanism 3 to move down and abut against the microporous plate 9 of the lower adsorption mechanism 2. During this process, the film tail of the old film and the film head of the new film are glued and fixed together under the action of the double-sided adhesive, thereby using adsorption to assist the connection between the film head and the film tail when changing the film roll.

[0030] Example 2

[0031] like Figures 1-4As shown, the coating machine film adsorption device proposed in this utility model, compared with Embodiment 1, further includes: a displacement component 7 consisting of a pad 701, a connecting rod 702, a screw 703, a bushing 704, a screw seat 705, and a motor 706. The pad 701 is fixedly mounted on the outer wall of the negative pressure groove 8, the bushing 704 is fixedly mounted on the pad 701, the screw seat 705 is coaxially rotatably mounted on the bushing 704, the screw 703 is threadedly engaged with the inner wall of the screw seat 705, one end of the connecting rod 702 is fixedly mounted on the end of the screw 703, and the other end of the connecting rod 702 is fixedly mounted on the end of the blocking plate 10 protruding from the negative pressure groove 8. The motor 706 is fixedly mounted on the pad 701. The output gear and the gear ring coaxially arranged on the outer wall of the screw seat 705 are in a gear tooth meshing state. During the above process, the motor 706 works and drives the screw seat 705 to rotate on the bushing 704 through the gear tooth meshing action. Through the thread meshing action of the screw 703 and the screw seat 705, and the screw 703 is limited by the position of the connecting rod 702 and the blocking plate 10 to prevent deflection, under the principle of the lead screw, the screw 703 drives the blocking plate 10 to perform linear movement. The personnel can dynamically adjust the distance between the two blocking plates 10 according to the width of the membrane material. When the two blocking plates 10 are close to each other, the blocking plates 10 compress and seal the negative pressure area inside the negative pressure groove 8, thereby reducing the negative pressure adsorption area of ​​the microporous plate 9.

[0032] Rubber sealing structures are provided at the contact points between the blocking plate 10 and the negative pressure groove 8 and the microporous plate 9. The rubber sealing structures between the blocking plate 10 and the negative pressure groove 8 and the microporous plate 9 ensure the sealing of the negative pressure cavity, prevent air leakage, and improve adsorption stability.

[0033] It should be noted that the structure of motor 706 and hydraulic cylinder 5 is a mature existing technology, and its working principle and internal structure are known to those skilled in the art. This utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0034] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A coating machine film adsorption device, comprising a base (1), a lower adsorption mechanism (2), and an upper adsorption mechanism (3), characterized in that: A slide rod (4) is fixedly installed on the base (1), and a top plate (6) is fixedly installed at the top of the slide rod (4). The lower adsorption mechanism (2) is fixedly installed on the base (1), and the upper adsorption mechanism (3) is slidably installed on the slide rod (4). The lower adsorption mechanism (2) and the upper adsorption mechanism (3) have the same structure. Both include a displacement component (7), a negative pressure groove (8), a microporous plate (9), a blocking plate (10), and a connecting nozzle (11). The microporous plate (9) is fixedly disposed on the opening surface of the negative pressure groove (8). The blocking plate (10) is symmetrically slidably disposed in the negative pressure groove (8). The connecting nozzle (11) is equidistantly disposed on the negative pressure groove (8). The displacement component (7) is used to control the linear movement of the blocking plate (10) in the negative pressure groove (8).

2. The film adsorption device of claim 1, wherein: A hydraulic cylinder (5) is fixedly installed on the top plate (6), and the output end of the hydraulic cylinder (5) is fixedly installed on the outer wall of the upper adsorption mechanism (3).

3. The film-adsorbing device of claim 2, wherein: The microporous plates (9) of the lower adsorption mechanism (2) and the upper adsorption mechanism (3) are distributed opposite to each other, and the microporous plate (9) of the upper adsorption mechanism (3) is slidably inserted into the slide rod (4). The output end of the hydraulic cylinder (5) is fixed to the outer wall of the negative pressure groove (8) of the upper adsorption mechanism (3), and the outer wall of the negative pressure groove (8) of the lower adsorption mechanism (2) is fixed to the base (1).

4. The film-adsorbing device of claim 1, wherein: The displacement assembly (7) consists of a pad (701), a connecting rod (702), a screw (703), a bushing (704), a screw seat (705), and a motor (706). The pad (701) is fixedly installed on the outer wall of the negative pressure groove (8). The bushing (704) is fixedly installed on the pad (701). The screw seat (705) is coaxially rotatably installed on the bushing (704). The screw (703) is threadedly engaged with the inner wall of the screw seat (705). One end of the connecting rod (702) is fixedly installed at the end of the screw (703), and the other end of the connecting rod (702) is fixedly installed at one end of the blocking plate (10) protruding from the negative pressure groove (8).

5. The film-adsorbing device of claim 4, wherein: The motor (706) is fixedly mounted on the pad (701), and the output gear of the motor (706) is in a gear-tooth meshing state with the gear ring coaxially mounted on the outer wall of the screw seat (705).

6. The film-adsorbing device of claim 1, wherein: The blocking plate (10) is provided with a rubber sealing structure at the contact position with the negative pressure groove (8) and the microporous plate (9).

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