Servo column cutter type glue breaking structure

Abstract

The invention provides a servo column knife type glue breaking structure which comprises a coating pool, a transfer roller partially immersed in coating is rotatably arranged in the coating pool, and a material inlet roller adjacent to the transfer roller is rotatably arranged in the coating pool; a material storage groove is formed in the material inlet roller and is provided with an opening facing the transfer roller; the jet roller is arranged to be rotatable relative to the transfer roller so that the opening is selectively in sealing contact with or separated from the surface of the transfer roller. When the material spraying roller rotates to the sealing position, the coating from the flow guide plate can be efficiently captured and sealed in the material storage groove, and along with continuous rotation of the roller body, the coating is dynamically compressed to accumulate fluid pressure potential energy; when coating is needed, the material spraying roller rapidly rotates to the opening separation position, and accumulated high-pressure coating can be instantly and completely released to the surface of the transfer roller in a bursting mode.

Description

Technical Field

[0001] This invention relates to the field of coating equipment technology, specifically to a servo-driven column-blade type adhesive-cutting structure. Background Technology

[0002] In intermittent coating processes such as book block encapsulation, battery electrode coating, or color-coated sheet manufacturing, transfer coating technology is widely used due to its wide adaptability to coating viscosity and precise control over the coating start and end points. The core of this technology lies in the precise transfer of a predetermined amount of coating to the substrate surface using a transfer carrier, such as a coating roller. The uniformity of the coating start directly determines the overall quality and yield of the product.

[0003] Existing technologies commonly employ multi-roll coating systems, such as four-roll fine coaters, to transfer coatings. A typical structure includes a lifting roller, a transfer roller, a coating roller, and a support roller. Coating thickness is controlled by adjusting the gap between the rollers. However, such systems exhibit technical limitations under high-speed (e.g., linear speeds exceeding 1.5 m / s) intermittent coating conditions.

[0004] In the initial stage of coating, traditional equipment requires the coating to undergo a process of establishing a stable flow from static to stable conditions, resulting in a "flow gap." This leads to insufficient material at the beginning of the coating on the transfer carrier, creating an "uneven head" area. Although existing technologies attempt to improve this by optimizing roller surface precision or adjusting pressure, they have not solved the problem of fluid lag at the moment of valve opening. When capacity upgrades require further increases in linear speed, the response time of existing mechanical valves can no longer meet the extreme process requirements.

[0005] Therefore, developing a coating device that is purely mechanical and can achieve instantaneous full coverage of the coating start point under high-speed conditions without complex electrical control has become a technical challenge that urgently needs to be overcome in this field. Summary of the Invention

[0006] This invention proposes a servo-driven column blade adhesive-cutting structure, which solves the problem that the response delay in the existing technology of flexible and electrically controlled switching between large / small area coating characteristics still makes it difficult to meet the requirements of high-speed coating.

[0007] The technical solution of this invention is implemented as follows: A servo-driven column-blade type glue-cutting structure includes a paint tank, in which a transfer roller partially immersed in paint is rotatably disposed, and in which a feeding roller is rotatably disposed adjacent to the transfer roller; The feeding roller has a storage trough inside, and the storage trough has an opening facing the transfer roller; the feeding roller is configured to rotate relative to the transfer roller so that the opening selectively seals or separates from the surface of the transfer roller.

[0008] Furthermore, it also includes a guide plate, which is fixedly installed in the paint tank and located at the bottom of the transfer roller, with its end extending below the space between the transfer roller and the feeding roller, so as to guide the paint carried by the rotating transfer roller to the opening of the storage tank.

[0009] Furthermore, the end of the guide plate is adapted to the surface contour of the transfer roller and maintains the gap for guiding the coating.

[0010] Furthermore, the feeding roller has a pressure relief port that communicates with the storage tank.

[0011] Furthermore, the rotation axis of the feeding roller is parallel to the rotation axis of the transfer roller.

[0012] Furthermore, the outline shape of the opening is adapted to the surface curvature of the transfer roller.

[0013] Furthermore, when the opening comes into sealed contact with the surface of the transfer roller, the storage tank forms a closed cavity.

[0014] Furthermore, the feeding roller is connected to a drive mechanism configured to drive the feeding roller to perform intermittent reciprocating rotation.

[0015] Furthermore, the driving mechanism is a servo motor.

[0016] The beneficial effects of the technical solution provided in this application are as follows: 1. This invention, by embedding a storage tank inside the feeding roller and utilizing the rotation of the feeding roller itself to control the sealing contact and separation between the opening of the storage tank and the surface of the transfer roller, allows the core structure to efficiently capture and seal the coating material from the guide plate within the storage tank when the feeding roller rotates to the sealing position. As the roller continues to rotate, the coating material is dynamically compressed, accumulating fluid pressure potential energy. When coating is required, the feeding roller quickly rotates to the opening separation position, and the accumulated high-pressure coating material is instantly and explosively released onto the surface of the transfer roller. This mechanism eliminates the "flow window period" caused by the delay in fluid filling during the initial opening and closing of traditional valves, enabling the coating tip to achieve full and uniform coating coverage in a very short response time. This overcomes the bottleneck of head uniformity under high-speed operating conditions and eliminates the need for complex and expensive external pressurization and rapid electronic control systems. 2. In this invention, the fixed guide plate maintains a constant, minute gap with the bottom surface of the transfer roller, thus stably and efficiently guiding the coating layer to the opening of the storage tank. This provides a stable and sufficient source of coating for the subsequent pressurization process, ensuring the reliability and consistency of the spraying effect. Secondly, the pressure relief port on the spraying roller constitutes a clever pressure self-balancing mechanism. It allows a small amount of air or excess coating to overflow during the pressurization stage of the storage tank, effectively preventing air resistance caused by excessive pressure, ensuring the stable formation of the high-pressure coating flow, and avoiding the risk of overload on the cavity structure, thereby improving the long-term reliability of the equipment. Finally, the spraying roller, driven by a servo motor, can perform high-precision intermittent reciprocating rotation. This not only makes the sealing contact between the opening of the storage tank and the surface of the transfer roller more tight and reliable, but also achieves millisecond-level precise control of the coating opening and closing timing, further improving the contour accuracy of the coating's beginning and end points to a new level, meeting higher standard process requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the servo-driven column blade type adhesive-cutting structure of the present invention; Figure 2 This is a front view of the servo-driven column blade type glue-cutting structure of the present invention; Figure 3 This is a side view schematic diagram of the servo-driven column blade type glue-cutting structure of the present invention; Figure 4 For the present invention Figure 2 A schematic diagram of the cross section of AA.

[0019] In the diagram: 1. Paint tank, 2. Transfer roller, 3. Feeding roller, 4. Storage tank, 5. Pressure relief port, 6. Guide plate. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 4This invention provides a servo-driven column-blade type adhesive breaking structure. Its core design concept is to use a feeding roller 3 with an internal storage tank 4 that can reciprocate, in conjunction with a transfer roller 2, to achieve the pressure accumulation and instantaneous release of the coating in a purely mechanical manner, thereby eliminating the problem of unevenness at the beginning of high-speed coating.

[0022] To avoid ambiguity, all descriptions of rotation direction involving "clockwise" or "counterclockwise" in this instruction manual shall use the term "clockwise" or "counterclockwise". Figure 2 The diagrams shown are based on a uniform viewing angle. That is, the observer is facing... Figure 2 The direction of rotation as seen on the drawing plane is the basis for judgment.

[0023] The main frame of the servo-driven column-blade adhesive-cutting structure is a coating tank 1, which holds the coating to be applied, such as hot melt adhesive for book core sealing or slurry for battery electrodes. Two key rollers, a transfer roller 2 and a feeding roller 3, are arranged parallel and adjacent to each other in the coating tank 1. The transfer roller 2 is rotatably mounted on the side wall of the coating tank 1 via a rotating shaft, and a portion of its lower circumferential surface is submerged below the liquid surface of the coating tank 1. One end of the transfer roller 2 is typically connected to an external drive mechanism (not shown in the figure), such as via a belt or gear drive, enabling it to rotate continuously and stably counterclockwise, thereby continuously lifting the coating from the tank.

[0024] The feeding roller 3 is also rotatably mounted on the side wall of the paint tank 1 via a rotating shaft. Its axis of rotation is strictly parallel to that of the transfer roller 2 to ensure the accuracy of their movement during operation. The feeding roller 3 is not a solid structure internally, but rather has at least one or more storage troughs 4 formed along its axial direction. Figure 3 As shown in the cross-sectional view, the storage trough 4 is a cavity formed by a radial inward recess in the roller body, which has an opening facing and directly opposite the transfer roller 2. The outline shape of the opening is precision machined to perfectly match the curvature of the outer circumferential surface of the transfer roller 2.

[0025] To achieve precise guidance and supply of paint, a guide plate 6 is fixedly installed at the bottom of the feeding roller 3. The end of the guide plate 6 extends below the space between the transfer roller 2 and the feeding roller 3, and it is preferably rigidly fixed to the wall or internal frame of the paint tank 1 by means of bolts or other methods. The top of the guide plate 6 has a finely machined guiding surface that matches the contour of the bottom circumferential surface of the transfer roller 2, and a very small, constant gap is maintained between them for the paint to pass through. When the transfer roller 2 rotates counterclockwise, excess paint adhering to its surface is effectively scraped off and collected by the top of the guide plate 6, and forced to change its flow direction, being smoothly and centrally guided to the opening of the storage tank 4 on the feeding roller 3, providing a stable and reliable source of paint for the storage tank 4.

[0026] The core operation of this invention lies in the intermittent reciprocating rotation of the feeding roller 3. The feeding roller 3 is connected to a high-precision drive mechanism, preferably a servo motor (not shown in the figure). The servo motor is connected to the rotating shaft of the feeding roller 3 via a reduction and transmission mechanism, such as a connecting rod, cam, or direct drive, enabling precise control of the feeding roller 3 to perform rapid, intermittent reciprocating oscillations within a specific angular range. When it is necessary to interrupt coating or prepare for the next coating, the servo motor drives the feeding roller 3 to rotate counterclockwise by a small angle, causing the opening of its material storage groove 4 to fit tightly against the surface of the continuously rotating transfer roller 2. Due to the perfect fit between the opening profile and the curvature of the roller surface, an effective surface contact seal is formed between the two, at which point the material storage groove 4 transforms from an open groove into a closed cavity.

[0027] While the storage tank 4 is closed, the transfer roller 2 continues to rotate, continuously feeding paint into the sealed storage tank 4 via the guide plate 6. Because the outlet is closed, the paint is rapidly compressed within the storage tank 4, causing a sharp increase in fluid pressure, converting mechanical energy into pressure potential energy and storing it. To ensure the safety and stability of this process, a pressure relief port 5 is provided on the body of the feeding roller 3, which is connected to the internal cavity of the storage tank 4. Its function is to allow a small amount of air or a very small amount of excess paint to escape during pressure accumulation, thereby avoiding "air resistance" caused by excessive pressure. This air resistance would hinder the normal filling of paint and affect the subsequent spouting effect. Simultaneously, this design also acts as a safety valve to prevent damage to the cavity structure due to overpressure.

[0028] When the coating cycle begins and paint needs to be supplied to transfer roller 2, the servo motor immediately drives the feeding roller 3 to rotate rapidly clockwise. This action causes the opening of the storage tank 4 to separate instantly from the surface of transfer roller 2, breaking the seal. The high-pressure paint accumulated in the storage tank 4 is no longer restrained and, under the action of the huge pressure difference, is released instantaneously and completely like a jet, directly and at high speed covering the surface of the adjacent transfer roller 2. This burst-type supply method allows the coating start to achieve full paint coverage in a very short response time, completely eliminating the flow gap period when the traditional valve is opened.

[0029] After the coating is released, the servo motor drives the feeding roller 3 to remain in the open position for a period of time. During this time, the coating is guided by the guide plate 6 and continuously and steadily supplied to the transfer roller 2 through the open storage tank 4 for a stable coating phase. When the coating is about to end and the coating needs to be precisely cut off, the servo motor drives the feeding roller 3 to rotate counterclockwise again, so that the opening of the storage tank 4 re-seales with the surface of the transfer roller 2. This scrapes off excess coating on the transfer roller 2, forming a clear coating end, and starts a new round of pressure accumulation, preparing for the next initial burst coating.

[0030] Through the linkage of the above-mentioned purely mechanical structure, the conveying, cutting, accumulating and releasing of the coating are integrated into the relative movement of the transfer roller 2 and the feeding roller 3. Without the need for complex external pressurization devices or slow-responding electronic control valves, high-speed and highly uniform intermittent coating is achieved simply through reciprocating rotation, especially solving the long-standing technical problem of full coverage at the beginning of the coating.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A servo-driven column-blade type adhesive-cutting structure, characterized in that, It includes a paint tank (1), in which a transfer roller (2) partially immersed in paint is rotatably arranged, and a feeding roller (3) adjacent to the transfer roller (2) is rotatably arranged in the paint tank (1). The feeding roller (3) has a storage trough (4) inside, and the storage trough (4) has an opening facing the transfer roller (2); the feeding roller (3) is configured to rotate relative to the transfer roller (2) so that the opening selectively seals or separates from the surface of the transfer roller (2).

2. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, It also includes a guide plate (6), which is fixedly installed in the paint tank (1) and located at the bottom of the transfer roller (2), with its end extending below the transfer roller (2) and the feeding roller (3) to guide the paint carried by the rotating transfer roller (2) to the opening of the storage tank (4).

3. The servo-driven column-blade type adhesive-cutting structure as described in claim 2, characterized in that, The end of the guide plate (6) is adapted to the surface contour of the transfer roller (2) and maintains the gap for guiding the coating.

4. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, The feeding roller (3) has a pressure relief port (5) that communicates with the storage tank (4).

5. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, The rotation axis of the feed roller (3) is parallel to the rotation axis of the transfer roller (2).

6. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, The outline shape of the opening is adapted to the surface curvature of the transfer roller (2).

7. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, When the opening comes into sealed contact with the surface of the transfer roller (2), the storage tank (4) forms a closed cavity.

8. The servo-driven column-blade type adhesive-cutting structure as described in claim 1, characterized in that, The feeding roller (3) is connected to a drive mechanism configured to drive the feeding roller (3) to perform intermittent reciprocating rotation.

9. The servo-driven column-blade type adhesive-cutting structure as described in claim 8, characterized in that, The drive mechanism is a servo motor.

Images