A high-efficiency and precise scraper

Abstract

The utility model discloses an efficient and precise scraper, including a scraper body, wherein the scraper body includes a metal scraper box body, a baffle plate seat, a fluid confluence groove, a fluid hole, a heating unit, a heat-conducting metal column, a negative pressure tube, a negative pressure hole, a liquid suction pump tube, a liquid outlet hole, a long strip of scraping glue groove and a liquid guide hole. The utility model adopts a split design of an upper cavity and a lower cavity, and cooperates with negative pressure adsorption and negative pressure pump diversion, so that liquid glue can flow smoothly during the scraping process, effectively avoiding the blockage problem that is easy to occur in traditional scrapers when handling liquid glue. This design improves the operating efficiency and stability of the equipment. At the same time, the negative pressure adsorption function of the upper cavity can quickly suck in the scraped liquid glue, and the negative pressure pump diversion of the lower cavity ensures that the glue is quickly discharged, thereby making the liquid glue processing process more efficient and greatly improving production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive coating machines, in particular to a high-efficiency and precise scraper. Background Art

[0002] Scrapers are indispensable tools in many coating processes, especially in hot melt adhesive coating machines, where they play a critical role.

[0003] The working principle of the hot melt adhesive coating machine is to heat the solid hot melt adhesive to liquid state, and then evenly apply the liquid adhesive to the substrate through a scraper. In this process, the role of the scraper is to accurately control the coating thickness and uniformity of the liquid adhesive, thereby ensuring product quality.

[0004] However, in the prior art, the hot melt adhesive coating process faces a major challenge, namely the solidification or curing of the liquid adhesive. Since the liquid adhesive easily loses heat when it contacts a colder substrate or ambient air, it will solidify partially or completely, which not only affects the scraping effect of the scraper, but also may cause uneven coating layer and even cause equipment failure.

[0005] In order to deal with this problem, the existing technology usually adopts heating methods, such as using a heating device to preheat the scraper or substrate to maintain the fluidity of the liquid glue. However, this method is often limited in effect in practice. On the one hand, it is difficult for the heating device to achieve precise control of the temperature. The temperature may be too high, causing the properties of the glue to change, or the temperature may be too low to effectively prevent the glue from solidifying. On the other hand, long-term heating may also cause thermal damage to the scraper and substrate, further affecting product quality and equipment life.

[0006] Therefore, how to effectively handle the adhesion and solidification of the scraped liquid glue, reduce the maintenance cost of the equipment, and improve production efficiency has become a technical problem to be solved by the utility model. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a high-efficiency and precise scraper to solve the problems of blockage, increased maintenance cost, reduced production efficiency and environmental pollution caused by glue adhesion and curing proposed in the above background technology.

[0008] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0009] A high-efficiency and precise scraper, comprising a scraper body, wherein the scraper body comprises a metal scraper box, a baffle plate seat, a fluid confluence groove, a fluid hole, a heating unit, a heat-conducting metal column, a negative pressure pipe, a negative pressure hole, a liquid suction pump pipe, a liquid outlet hole, a scraping glue strip groove and a liquid guide hole;

[0010] The metal scraper box body includes an inner cavity, and the blocking plate seat is fixedly arranged in the inner cavity of the metal scraper box body to divide the inner cavity into an upper cavity and a lower cavity;

[0011] A fluid confluence groove is arranged on the upper surface of the baffle plate seat, and a fluid hole is arranged at the lowest horizontal line position of the fluid confluence groove;

[0012] The upper chamber and the lower chamber are connected via a fluid hole;

[0013] More than one heating unit for heating the baffle plate seat is embedded inside the baffle plate seat;

[0014] The baffle plate seat is fixedly connected to the metal scraper box body through more than 6 heat-conducting metal columns;

[0015] The negative pressure tube is connected to the upper chamber through the negative pressure hole on the metal scraper box body;

[0016] The liquid suction pump tube is connected to the lower cavity through the liquid outlet hole on the metal scraper box body;

[0017] A long scraping groove is provided on the upper surface of the metal scraper box body and close to one side of the metal scraper box body;

[0018] The bottom of the long strip groove for scraping glue is evenly distributed with liquid guide holes communicated with the upper cavity.

[0019] As a further solution of the present invention, the number of heating units is 2.

[0020] As a further solution of the utility model, the metal scraper box body is made of wear-resistant and corrosion-resistant aluminum alloy or titanium alloy.

[0021] As a further solution of the utility model, more than 6 heat-conducting metal pillars are evenly distributed between the baffle plate seat and the metal scraper box body.

[0022] As a further solution of the utility model, the fluid confluence groove is located in the middle of the baffle plate seat.

[0023] As a further solution of the utility model, the baffle plate seat is made of copper, aluminum, aluminum alloy or stainless steel with high thermal conductivity.

[0024] Compared with the prior art, the beneficial effect of the utility model is that through the split design of the upper chamber and the lower chamber, combined with negative pressure adsorption and negative pressure pump diversion, the liquid glue can flow smoothly during the scraping process, effectively avoiding the blockage problem that is easy to occur when the traditional scraper handles the liquid glue. This design improves the operating efficiency and stability of the equipment. At the same time, the negative pressure adsorption function of the upper chamber can quickly absorb the scraped liquid glue, while the negative pressure pump diversion of the lower chamber ensures that the glue is quickly discharged, thereby making the liquid glue processing process more efficient and greatly improving production efficiency.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 for Figure 1 A magnified schematic diagram of part A.

[0029] Figure 3 It is a structural schematic diagram of the scraper body 1.

[0030] Figure 4 for Figure 3 AA cross-sectional view of .

[0031] Figure 5 for Figure 4 An enlarged schematic diagram of part B.

[0032] Figure 6 for Figure 4 Enlarged schematic diagram of part C of FIG.

[0033] The reference numerals and names in the figures are as follows:

[0034] Scraper body 1, metal scraper box body 2, baffle plate seat 3, fluid confluence groove 4, fluid hole 5, heating unit 6, heat-conducting metal column 7, negative pressure tube 8, negative pressure hole 9, liquid suction pump tube 10, liquid outlet hole 11, scraper long groove 12, liquid guide hole 13, upper cavity 14, lower cavity 15, coil 16 and roller 17. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1—6. In the embodiment of the utility model, a high-efficiency and precise scraper includes a scraper body 1, wherein the scraper body 1 includes a metal scraper box body 2, a baffle plate seat 3, a fluid confluence groove 4, a fluid hole 5, a heating unit 6, a heat-conducting metal column 7, a negative pressure pipe 8, a negative pressure hole 9, a liquid suction pump pipe 10, a liquid outlet hole 11, a scraping glue strip groove 12 and a liquid guide hole 13;

[0037] The metal scraper box body 2 includes an inner cavity, and the baffle plate seat 3 is fixedly arranged in the inner cavity of the metal scraper box body 2 to divide the inner cavity into an upper cavity 14 and a lower cavity 15; a fluid confluence groove 4 is arranged on the upper surface of the baffle plate seat 3, and a fluid hole 5 is arranged at the lowest horizontal line position of the fluid confluence groove 4; the upper cavity 14 and the lower cavity 15 are connected through the fluid hole 5; more than one heating unit 6 for heating the baffle plate seat 3 is embedded in the interior of the baffle plate seat 3; the baffle plate seat 3 is fixedly connected to the metal scraper box body 2 through more than six heat-conducting metal columns 7; the negative pressure pipe 8 is connected to the upper cavity 14 through the negative pressure hole 9 on the metal scraper box body 2; the liquid suction pump pipe 10 is connected to the lower cavity 15 through the liquid outlet hole 11 on the metal scraper box body 2; a scraper glue strip groove 12 is arranged on the upper surface of the metal scraper box body 2 and close to one side of the metal scraper box body 2; the bottom of the scraper glue strip groove 12 is evenly distributed with liquid guide holes 13 connected to the upper cavity 14. The number of heating units 6 is two.

[0038] The metal scraper box body 2 is made of wear-resistant and corrosion-resistant aluminum alloy or titanium alloy; more than 6 heat-conducting metal columns 7 are evenly distributed between the barrier plate seat 3 and the metal scraper box body 2; the fluid confluence groove 4 is located in the middle of the barrier plate seat 3; the barrier plate seat 3 is made of copper, aluminum, aluminum alloy or stainless steel with high thermal conductivity; at the same time, in this way, the relatively thin corners of the metal scraper box body 2 with the scraper glue are heated by the heat-conducting metal columns 7, which can prevent solidification by heating and avoid direct heating of the thinner corners for a long time to cause performance degradation.

[0039] Embodiment 1:

[0040] This embodiment provides an efficient and precise scraper, which is designed to address the problems of clogging, solidification and high maintenance costs that exist in the prior art scrapers when processing liquid glue. Through innovative structural design, the purpose of effectively processing liquid glue and preventing clogging is achieved.

[0041] The efficient and precise scraper includes a scraper body 1, which is composed of a metal scraper box body 2, a barrier plate seat 3, a fluid confluence groove 4, a fluid hole 5, a heating unit 6, a heat-conducting metal column 7, a negative pressure pipe 8, a liquid suction pump pipe 10, etc. The metal scraper box body 2 is made of wear-resistant and corrosion-resistant aluminum alloy to ensure the long-term use of the scraper. The interior is divided into an upper chamber 14 and a lower chamber 15 by the barrier plate seat 3. This segmentation design is the key to the technical innovation of this invention.

[0042] The upper surface of the baffle plate seat 3 is provided with a fluid confluence groove 4, which is located in the middle of the baffle plate seat 3 and is designed to collect liquid glue flowing in from the scraping glue strip groove 12. A fluid hole 5 is provided at the lowest horizontal line position of the fluid confluence groove 4, so that the upper cavity 14 and the lower cavity 15 are connected through the fluid hole 5. This design allows the liquid glue to flow smoothly from the upper cavity 14 through the fluid hole 5 into the lower cavity 15, avoiding the problem of glue clogging and solidification in the pipeline.

[0043] In order to further prevent the solidification of the glue, two heating units 6 are embedded inside the baffle plate seat 3. The heating unit 6 can, for example, adopt an embedded structure for electrically heating metal known to a person skilled in the art in the prior art, and its heating temperature range is controlled at 40°C to 80°C, which are all implementation methods known to a person skilled in the art. So that within this temperature range, the solidification of the glue can be effectively prevented without causing damage to the various components of the scraper body 1. The heating unit 6 is connected to the metal scraper box body 2 through a heat-conducting metal column 7, and the heat-conducting metal column 7 is evenly distributed between the baffle plate seat 3 and the metal scraper box body 2, ensuring uniform distribution and effective transfer of heat.

[0044] The negative pressure pipe 8 is connected to the upper chamber 14 through the negative pressure hole 9 on the metal scraper box body 2, and the liquid suction pump pipe 10 is connected to the lower chamber 15 through the liquid outlet hole 11 on the metal scraper box body 2. When the scraper is working, the negative pressure pipe 8 generates negative pressure through the negative pressure source, so that the scraped liquid glue can be smoothly sucked into the upper chamber 14. Then, the liquid glue flows into the lower chamber 15 through the fluid hole 5, and is finally discharged through the liquid suction pump pipe 10.

[0045] A long strip groove 12 for scraping glue is provided on the upper surface of the metal scraper box 2 and near one side. The metal scraper box 2 can be fixedly mounted on the equipment and released from the part of the web 16 to be scraped after being coated with glue, which is conveyed by the roller 17, so that the glue of excess thickness can be scraped into the long strip groove 12 for scraping glue, and liquid guide holes 13 connected with the upper cavity 14 are evenly distributed at the bottom of the long strip groove 12 for scraping glue to flow into the upper cavity 14. The conveying method of the web 16 by the roller 17 belongs to the prior art part known to ordinary technicians in this field, and in the application of the hot melt adhesive coating machine, the web 16 to be scraped cooperates with the long strip groove 12 for scraping glue during the conveying process through the roller 17, and the glue scraped off at the corner position of the metal scraper box 2 can enter the long strip groove 12 for scraping glue and flow into the upper cavity 14 through the liquid guide holes 13.

[0046] Through the above design, the efficient and precise scraper of this embodiment achieves the purpose of effectively processing liquid glue and preventing clogging. The use of the heating unit 6 avoids the problem of glue solidification and reduces the maintenance cost of the equipment. At the same time, the split design of the upper chamber 14 and the lower chamber 15 and the combined use of negative pressure and liquid suction pump ensure that the glue can be scraped and discharged smoothly, thereby improving production efficiency;

[0047] For example, in the application of hot melt adhesive coating machine, the use of the efficient and precise scraper of this embodiment can effectively solve the problems of glue blockage and solidification. Due to the innovative design of the scraper body 1, the glue can be scraped off smoothly and discharged through the liquid suction pump tube 10, avoiding the blockage of the pipeline and the solidification of the glue. This not only reduces the maintenance cost and time of the equipment, but also improves the production efficiency, which is conducive to ensuring high efficiency and precision during long-term use. At the same time, the use of the heating unit 6 ensures the fluidity of the glue, further preventing the occurrence of blockage and solidification problems.

[0048] In summary, the efficient and precise scraper of this embodiment achieves the purpose of effectively processing liquid glue and preventing clogging through innovative structural design, improves the production efficiency of the equipment and reduces maintenance costs, and has significant technical progress and practicality.

[0049] The beneficial effects brought by the utility model will be more fully demonstrated in the following specific application scenarios and methods:

[0050] First of all, the present application achieves the purpose of effectively processing liquid glue and preventing blockage through innovative structural design. The split design of the upper chamber 14 and the lower chamber 15 is adopted, so that the scraped liquid glue can be processed and discharged in the upper chamber 14 and the lower chamber 15 respectively. This design not only avoids the blockage and solidification problems of glue in the pipeline, but also improves the processing efficiency of glue. Through the combined use of the negative pressure tube 8 and the liquid suction pump tube 10, the glue can be smoothly sucked into the upper chamber 14, and flows into the lower chamber 15 through the fluid hole 5, and finally discharged through the liquid suction pump tube 10. This design not only ensures the smooth discharge of glue, but also avoids the residue and accumulation of glue in the pipeline, further reducing the risk of blockage and solidification.

[0051] Secondly, the present application effectively solves the problem of glue curing by introducing the heating unit 6. The use of the heating unit 6 can keep the temperature inside the scraper body 1 within a certain range, thereby avoiding the curing of the glue. This design not only increases the service life of the scraper, but also reduces the maintenance cost of the equipment. By controlling the temperature of the heating unit 6, it can be ensured that the glue is effectively scraped and processed in a liquid state, thereby avoiding the adverse effects of the cured glue on the equipment and process.

[0052] The utility model can achieve the following effects when used specifically:

[0053] 1. Effectively prevent clogging: Through the split design of the upper chamber 14 and the lower chamber 15, combined with negative pressure adsorption and negative pressure pump diversion, the liquid glue can flow smoothly during the scraping process, effectively avoiding the clogging problem that is easy to occur when the traditional scraper handles liquid glue. This design improves the operating efficiency and stability of the equipment.

[0054] 2. Improve processing efficiency: The negative pressure adsorption function of the upper chamber 14 can quickly absorb the scraped liquid glue, while the negative pressure pump diversion of the lower chamber 15 ensures that the glue is quickly discharged, thereby making the liquid glue processing process more efficient and greatly improving production efficiency.

[0055] 3. Reduce maintenance costs: The split design of the upper chamber 14 and the lower chamber 15 effectively prevents blockage, reduces the downtime and maintenance frequency of the equipment, and thus reduces maintenance costs. At the same time, the introduction of the heating unit 6 further extends the service life of the equipment and reduces the need to replace parts.

[0056] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0057] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A high-efficiency and high-precision scraper, comprising a scraper body, characterized in that: The scraper body comprises a metal scraper box body, a baffle plate seat, a fluid confluence groove, a fluid hole, a heating unit, a heat-conducting metal column, a negative pressure pipe, a negative pressure hole, a liquid suction pump pipe, a liquid outlet hole, a scraper strip groove and a liquid guide hole; The metal scraper box body includes an inner cavity, and the blocking plate seat is fixedly arranged in the inner cavity of the metal scraper box body to divide the inner cavity into an upper cavity and a lower cavity; A fluid confluence groove is arranged on the upper surface of the baffle plate seat, and a fluid hole is arranged at the lowest horizontal line position of the fluid confluence groove; The upper chamber and the lower chamber are connected via a fluid hole; More than one heating unit for heating the baffle plate seat is embedded inside the baffle plate seat; The baffle plate seat is fixedly connected to the metal scraper box body through more than 6 heat-conducting metal columns; The negative pressure tube is connected to the upper chamber through the negative pressure hole on the metal scraper box body; The liquid suction pump tube is connected to the lower cavity through the liquid outlet hole on the metal scraper box body; A long scraping groove is provided on the upper surface of the metal scraper box body and close to one side of the metal scraper box body; The bottom of the long strip groove for scraping glue is evenly distributed with liquid guide holes communicated with the upper cavity.

2. A high-efficiency and precise scraper according to claim 1, characterized in that: The number of heating units is 2.

3. The high-efficiency and high-precision scraper according to claim 1, characterized in that: The metal scraper box body is made of wear-resistant and corrosion-resistant aluminum alloy or titanium alloy.

4. The high-efficiency and high-precision scraper according to claim 1, characterized in that: More than six heat-conducting metal columns are evenly distributed between the baffle plate seat and the metal scraper box body.

5. The high-efficiency and high-precision scraper according to claim 1, characterized in that: The fluid confluence groove is located in the middle of the baffle plate seat.

6. The high-efficiency and precise scraper according to claim 1, characterized in that: The baffle plate seat is made of copper, aluminum, aluminum alloy or stainless steel with high thermal conductivity.

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