Direct scraping type coating head for polyurethane adhesive

Abstract

The utility model relates to a polyurethane adhesive direct scraping type coating head, which comprises a box body, a rolling roller, a material guide pipe, a vertical tool bit and a hydraulic cylinder, the box body is provided with an inner cavity, one end of the material guide pipe extends into the inner cavity of the box body, the other end of the material guide pipe is positioned outside the box body, and the vertical tool bit and the hydraulic cylinder are both positioned in the inner cavity of the box body; the hydraulic cylinder comprises a telescopic rod, the telescopic rod is fixedly connected with the vertical tool bit, and the telescopic rod drives the vertical tool bit to move up and down; a small hole is formed in the box body, one end, extending into an inner cavity of the box body, of the material guide pipe extends to the small hole, and a tool nose of the vertical tool bit extends out of the small hole; the rolling roller is close to the small hole, so that when a film on the rolling roller passes through the small hole in a rotating mode, an adhesive flows into the film on the rolling roller through the material guide pipe and the small hole, the adhesive on the film is scraped and coated through the vertical tool bit, and therefore the adhesive is evenly smeared on the film on the rolling roller.

Description

Technical Field

[0001] The utility model belongs to the field of adhesive scraping devices, and in particular relates to a polyurethane adhesive direct scraping coating head. Background Art

[0002] Adhesive coating machine is a common equipment in the coating field, which evenly applies adhesive to the produced film or cloth. At present, coating heads are divided into many categories according to different coating methods. One of them is a straight scraping coating head, which is named because the scraper is upright and hangs the adhesive. In the prior art, the upper and lower distances of the straight scraping coating head are rarely adjustable. As the scraper wears, the distance between the scraper and the cloth roller always changes, which leads to uneven adhesive applied on the film or cloth. For this reason, a mechanical transmission mechanism is designed in an adjustable straight scraping coating head in Chinese patent CN212493754U, so that the coating head can be adjusted up and down. However, the upper and lower adjustment mechanism of this coating head still needs to be adjusted manually, and manual adjustment is prone to errors or mistakes, and there is still a risk of uneven coating. In addition, manual adjustment increases costs and reduces work efficiency. Summary of the invention

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a polyurethane adhesive direct scraping coating head.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a polyurethane adhesive straight scraping coating head, which comprises a box body, a rolling roller, a material guide tube, an upright knife head and a hydraulic cylinder, the box body has an inner cavity, one end of the material guide tube extends into the inner cavity of the box body, and the other end is located outside the box body, the upright knife head and the hydraulic cylinder are both located in the inner cavity of the box body; the hydraulic cylinder comprises a telescopic rod, the telescopic rod is fixedly connected to the upright knife head, and the telescopic rod drives the upright knife head to move up and down; a small hole is provided on the box body, one end of the material guide tube extending into the inner cavity of the box body extends toward the small hole, and the tip of the upright knife head extends out of the small hole; the rolling roller is close to the small hole, so that when the film on the rolling roller rotates through the small hole, the adhesive flows into the film on the rolling roller through the small hole through the material guide tube, and the upright knife head scrapes the adhesive on the film, so that the adhesive is evenly applied to the film on the rolling roller.

[0005] In the present application, a controller is also included, and the controller is electrically connected to the hydraulic cylinder, and the controller controls the lifting height of the telescopic rod of the hydraulic cylinder.

[0006] The present application also includes a sensor, which is arranged near the upright cutter head and is used to measure the height of the upright cutter head extending out of the small hole.

[0007] In the present application, the sensor and the controller are electrically connected, and the data measured by the sensor is transmitted to the controller.

[0008] In the present application, it also includes a fixed block and a follower block. The fixed block and the upright cutter head are fixedly connected by inserting a screw into a screw hole. The screw is inserted into the screw hole to fix the follower block, the fixed block and the upright cutter head, and the telescopic rod and the follower block are fixedly connected.

[0009] In the present application, a fixing plate is also included, and the fixing plate is fixed to the inner wall of the box body by bolts, and the material guide pipe is fixed on the fixing plate at an angle.

[0010] The beneficial effects of the present application are as follows: the straight scraping coating head for the polyurethane adhesive provided by the present application has a high degree of automation, and the hydraulic cylinder can be controlled by a controller to realize unmanned operation so that the upright cutter head can move up and down, thereby solving the technical problem of uneven adhesive application caused by cutter head wear and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic structural diagram of a polyurethane adhesive direct scraping coating head provided in one embodiment of the utility model.

[0012] Figure 2 A partially enlarged structural schematic diagram of a polyurethane adhesive direct scraping coating head provided in one embodiment of the utility model.

[0013] Figure 3 A simplified logic diagram of signal transmission between a controller, a hydraulic cylinder and a sensor of a polyurethane adhesive direct scraping coating head provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0015] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0016] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0017] Please refer to Figure 1-2 The present application provides a polyurethane adhesive straight scraping coating head, the coating head comprises a box body 1, a rolling roller 2, a material guide tube 4, an upright cutter head 7 and a hydraulic cylinder 13, the box body 1 has an inner cavity, one end of the material guide tube 4 extends into the inner cavity of the box body 1, and the other end is located outside the box body 1, the upright cutter head 7 and the hydraulic cylinder 13 are both located in the inner cavity of the box body 1; the hydraulic cylinder 13 comprises a telescopic rod 12, the telescopic rod 12 is fixedly connected to the upright cutter head 7, and the telescopic rod 12 drives the upright cutter head 7 moves up and down; a small hole 6 is arranged on the box body 1, one end of the guide tube 4 extending into the inner cavity of the box body 1 extends toward the small hole 6, and the tip of the upright knife head 7 extends out of the small hole 6; the rolling roller 2 is close to the small hole 6, so that when the film on the rolling roller 2 rotates through the small hole 6, the adhesive flows into the film on the rolling roller 2 through the small hole 6 through the guide tube 4, and the upright knife head 7 scrapes the adhesive on the film, so that the adhesive is evenly applied to the film on the rolling roller 2.

[0018] In one embodiment of the present application, please refer to Figure 1-2The coating head further includes a controller 15 (a commercially available CYK1 coating machine synchronous controller may be used), the controller 15 is electrically connected to the hydraulic cylinder 13 , and the controller 15 controls the lifting height of the telescopic rod 12 of the hydraulic cylinder 13 .

[0019] In one embodiment of the present application, please refer to Figure 1-2 The coating head further includes a sensor 14 , which is disposed near the upright cutter head 7 , and is used to measure the height of the upright cutter head 7 extending out of the small hole 6 .

[0020] In one embodiment of the present application, please refer to Figure 1-2 The sensor 14 and the controller 15 are electrically connected, and the data measured by the sensor 14 is transmitted to the controller 15 .

[0021] In one embodiment of the present application, please refer to Figure 1-2 The coating head further comprises a fixed block 8 and a follower block 9. The fixed block 8 is fixedly connected to the upright cutter head 7 by inserting a screw into a screw hole 11. The screw is inserted into a screw hole 10 to fix the follower block 9, the fixed block 8 and the upright cutter head 7. The telescopic rod 12 is fixedly connected to the follower block 9. In this way, when the telescopic rod 12 is lifted up and down, it drives the follower block 9 to rise and fall synchronously, and then drives the upright cutter head 7 to rise and fall synchronously.

[0022] The coating head further comprises a fixing plate 3 , which is fixed to the inner wall of the box body 1 by bolts, and the material guide tube 4 is fixed to the fixing plate 3 at an angle.

[0023] The straight scraping coating head for polyurethane adhesive provided in the present application has a high degree of automation. The hydraulic cylinder can be controlled by a controller to realize unmanned operation so that the upright cutter head can move up and down, thereby solving the technical problem of uneven adhesive coating caused by cutter head wear and improving production efficiency.

[0024] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A polyurethane adhesive direct scraping coating head, characterized in that: The invention comprises a box body, a rolling roller, a material guide tube, an upright cutter head and a hydraulic cylinder, wherein the box body has an inner cavity, one end of the material guide tube extends into the inner cavity of the box body, and the other end is located outside the box body, and the upright cutter head and the hydraulic cylinder are both located in the inner cavity of the box body; the hydraulic cylinder comprises a telescopic rod, and the telescopic rod is fixedly connected to the upright cutter head, and the telescopic rod drives the upright cutter head to move up and down; a small hole is provided on the box body, and one end of the material guide tube extending into the inner cavity of the box body extends toward the small hole, and the tip of the upright cutter head extends out of the small hole; the rolling roller is close to the small hole, so that when the film on the rolling roller rotates and passes through the small hole, the adhesive flows into the film on the rolling roller through the small hole via the material guide tube, and the upright cutter head scrapes the adhesive on the film, so that the adhesive is evenly applied to the film on the rolling roller.

2. The polyurethane adhesive direct scraping coating head according to claim 1, characterized in that: It also includes a controller, which is electrically connected to the hydraulic cylinder and controls the lifting height of the telescopic rod of the hydraulic cylinder.

3. The polyurethane adhesive direct scraping coating head according to claim 2, characterized in that: It also includes a sensor, which is arranged at a position close to the upright cutter head and is used to measure the height of the upright cutter head extending out of the small hole.

4. The polyurethane adhesive direct scraping coating head according to claim 3, characterized in that: The sensor is electrically connected to the controller, and the data measured by the sensor is transmitted to the controller.

5. The polyurethane adhesive direct scraping coating head according to claim 4, characterized in that: It also includes a fixed block and a follower block, wherein the fixed block and the upright cutter head are fixedly connected by inserting a screw into a screw hole, and the screw is inserted into the screw hole to fix the follower block, the fixed block and the upright cutter head, and the telescopic rod and the follower block are fixedly connected.

6. The polyurethane adhesive direct scraping coating head according to claim 5, characterized in that: It also includes a fixing plate, which is fixed to the inner wall of the box body by bolts, and the material guide pipe is obliquely fixed to the fixing plate.

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