Weld joint polishing material, preparation method and device

Abstract

The invention relates to the technical field of polishing materials, in particular to a weld joint polishing material and a preparation method and device.The weld joint polishing material comprises a base body and a coating, the base body is formed by nylon through extrusion molding, the base body is provided with a plurality of wrinkled faces, the coating is polyurethane glue containing ground powder, the coating is sprayed to the corresponding base body, and the coating is formed by bonding a plurality of wrinkled faces. By adopting the design of the nylon base body with a plurality of wrinkled surfaces, the contact area and friction force during grinding can be increased, the grinding efficiency can be improved, particularly, the performance is excellent when a welding seam with a complex shape or a large area is treated, meanwhile, the surface of the base body is coated with polyurethane glue containing ground powder, and drying and cooling treatment are performed, so that the welding quality is improved. And the firm attachment of the grinding material on the base body is ensured, the service life of the grinding tool is prolonged, and the replacement frequency is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grinding materials, and in particular to a weld grinding material, a preparation method and a device. Background Art

[0003] Weld grinding is an important part of the welding process. Its main purpose is to remove defects such as oxide layers, stains, burrs, etc. on the weld surface, improve the flatness and smoothness of the weld, and thus meet the appearance and performance requirements of the product. In addition, weld grinding can also reduce welding stress and improve the strength and toughness of the weld.

[0004] Weld grinding is an indispensable part of the welding process. It is crucial to improve the appearance quality and performance of the weld. In the process of weld grinding, it is very important to choose the right grinding material. The existing common weld grinding materials have limited contact area and friction force during grinding, resulting in low grinding efficiency during actual use. Summary of the invention

[0006] The purpose of the present invention is to provide a weld grinding material, a preparation method and a device, which can increase the contact area and friction during grinding and improve the grinding efficiency by adopting a nylon base design with multiple wrinkled surfaces, especially when processing welds with complex shapes or large areas. At the same time, by spraying polyurethane glue containing abrasive powder on the surface of the base and undergoing drying and cooling treatment, the abrasive is firmly attached to the base, the service life of the grinding tool is extended, and the replacement frequency is reduced.

[0007] To achieve the above object, the present invention provides a weld grinding material, comprising a substrate and a coating; The substrate is formed by nylon extrusion, the substrate is provided with a plurality of wrinkled surfaces, the coating is polyurethane glue containing abrasive powder, and the coating is sprayed on the corresponding substrate.

[0008] Among them, a method for preparing a weld grinding material is used to prepare the weld grinding material, comprising the following steps: Add nylon raw materials into the extrusion equipment; Extruding the added nylon raw material through an extrusion device to generate a corresponding matrix; Spraying a coating on the surface of the substrate after processing; The sprayed substrate is dried and cooled to complete the preparation of the weld grinding material.

[0009] Among them, a weld grinding material preparation device is applied to the weld grinding material preparation method, comprising an extruder, a spraying device and a conveying mechanism, wherein the conveying mechanism is arranged on one side of the extruder, the spraying device is installed on the conveying mechanism, and further comprises an auxiliary component; The auxiliary components include a guide air pump, a discharge rack, a preheating component and an absorption component. The guide cylinder is installed on the conveying mechanism. The discharge rack is arranged at the air outlet end of the guide air pump. The preheating component is connected to the discharge rack to complete the preheating of the raw materials at the feed port of the extruder. The absorption component is connected to the conveying mechanism to cooperate with the guide air pump to absorb and dissipate heat from the raw materials in the conveying mechanism.

[0010] Among them, the preheating component includes an insulating sleeve and a spiral heat release tube, the spiral heat release tube is sleeved in the feed channel of the extruder and connected to the discharge rack; the insulating sleeve is arranged on the outside of the spiral heat release tube to prevent the heat released by the spiral heat release tube from being directly dissipated into the external environment.

[0011] Wherein, the absorption component includes a suction frame, an open suction cup, a scattering suction cup and a rotating suction frame, the suction frame is connected to the suction end of the guide air pump; the open suction cup is installed on the side of the suction frame close to the extruder; there are two scattering suction cups, one of which is installed on the side of the suction frame close to the spraying equipment, and the other scattering suction cup is installed on the conveying mechanism; the scattering suction cup installed on the conveying mechanism is provided with the rotating suction frame, one side of the rotating suction frame is connected to the corresponding scattering suction cup, and the other side is connected to the conveying mechanism.

[0012] Among them, the auxiliary components also include an air curtain output rack, an air intake device, an intercepting component and a discharging component. The two air curtain output racks are installed on the conveying mechanism, and the two air curtain output racks are respectively arranged on the front and rear sides of the spraying equipment; the air outlet end of the air intake device is connected to the air inlet ends of the two air curtain output racks; the intercepting component is installed on the side of the conveying mechanism close to the extruder, and is used to block the heat generated on one side of the extruder outlet; the discharging component is installed on the conveying mechanism, and is used to monitor, screen and discharge the prepared weld grinding materials.

[0013] Among them, the intercepting component includes a workpiece sensing mechanism, a connecting bracket, an intercepting plate, a screw driving mechanism and a rolling contact mechanism, the workpiece sensing mechanism is installed on the side of the conveying mechanism close to the extruder; the connecting bracket is fixedly installed on the conveying mechanism; the intercepting plate is slidably installed on the connecting bracket; the screw driving mechanism is installed on the connecting bracket for driving the intercepting plate; the rolling contact mechanism is arranged at the bottom of the intercepting plate to ensure the stability of the intercepting plate blocking.

[0014] Among them, the discharging component includes a shooting monitoring device, a classification material receiving box and an export control mechanism, two of the shooting monitoring devices are installed on the conveying mechanism, and the two shooting monitoring devices are respectively arranged on the front and rear sides of the spraying equipment; the classification material receiving box is placed at the discharge port of the conveying mechanism; the export control mechanism is installed on the side of the conveying mechanism close to the classification material receiving box.

[0015] The weld grinding material, preparation method and device of the present invention first add nylon raw material into extrusion equipment during actual processing, extrude the added nylon raw material through the extrusion equipment to generate a corresponding matrix, spray a coating on the surface of the matrix after processing, dry and cool the matrix after spraying to complete the preparation of the weld grinding material. By adopting a nylon matrix design with multiple wrinkled surfaces, the contact area and friction force during grinding are increased, and the grinding efficiency is improved, especially when processing welds with complex shapes or large areas. At the same time, by spraying polyurethane glue containing abrasive powder on the surface of the matrix and undergoing drying and cooling treatment, the firm adhesion of the abrasive on the matrix is ​​ensured, the service life of the grinding tool is extended, and the replacement frequency is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 It is a schematic structural diagram of the weld grinding material, preparation method and device of the present invention.

[0019] Figure 2 It is a schematic diagram of the installation structure of the rotary suction rack of the present invention.

[0020] Figure 3 It is a schematic structural diagram of a cutaway heat insulation sleeve of the present invention.

[0021] Figure 4 It is a schematic diagram of the internal structure of the conveying mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the interception plate of the present invention when it is cut open.

[0023] Figure 6 The present invention Figure 5 Enlarged view of point A.

[0024] Figure 7 The present invention Figure 5 Enlarged view of point B.

[0025] In the figure: 101-extruder, 102-spraying equipment, 103-conveying mechanism, 104-guiding air pump, 105-discharge rack, 201-insulating sleeve, 202-spiral heat release pipe, 301-suction rack, 302-open suction cup, 303-scattered suction cup, 304-rotating suction rack, 401-wind curtain output rack, 402-air intake equipment, 403-workpiece sensing mechanism, 404-connecting bracket, 405-intercepting plate, 406-screw driving mechanism, 407-rolling contact mechanism, 501-shooting monitoring equipment, 502-classification receiving box, 503-export control mechanism. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0029] The present invention provides a weld grinding material including a substrate and a coating; The substrate is formed by nylon extrusion, the substrate is provided with a plurality of wrinkled surfaces, the coating is polyurethane glue containing abrasive powder, and the coating is sprayed on the corresponding substrate.

[0030] Specifically, nylon does not refer to a single substance, but includes multiple types, such as aliphatic PA, aliphatic-aromatic PA and aromatic PA. Among them, aliphatic PA has many varieties, large output and wide application. Its name is usually determined by the specific number of carbon atoms in the synthetic monomer. Common aliphatic polyamides include PA-6, PA-610, PA-612, PA-1010, PA-11, PA-12 and PA-46, etc. Aromatic polyamides include poly(p-phenylene terephthalamide) fiber (commonly known as aramid 1414) and poly(m-phenylene isophthalamide) fiber (commonly known as aramid 1313), etc. In addition, there are mixed polyamides, such as poly(m-phenylene adipamide) (MXD16) and poly(hexamethylene terephthalamide) (polyamide 6T).

[0031] Furthermore, a method for preparing a weld grinding material is provided, which is used to prepare the weld grinding material, comprising the following steps: S1: Add nylon raw materials into the extrusion equipment; S2: Extruding the added nylon raw material through an extrusion device to form a corresponding matrix; S3: spraying a coating on the surface of the substrate after processing; S4: Drying and cooling the sprayed substrate to complete the preparation of the weld grinding material.

[0032] For further information, see Figures 1 to 7 , a weld grinding material preparation device, applied to the weld grinding material preparation method, comprises an extruder 101, a spraying device 102 and a conveying mechanism 103, wherein the conveying mechanism 103 is arranged on one side of the extruder 101, the spraying device 102 is installed on the conveying mechanism 103, and further comprises an auxiliary component; The auxiliary components include a guide air pump 104, a discharge rack 105, a preheating component and an absorption component. The guide cylinder is installed on the conveying mechanism 103. The discharge rack 105 is arranged at the air outlet end of the guide air pump 104. The preheating component is connected to the discharge rack 105 to complete the preheating of the raw materials at the feed port of the extruder 101. The absorption component is connected to the conveying mechanism 103 to cooperate with the guide air pump 104 to absorb and dissipate heat from the raw materials in the conveying mechanism 103.

[0033] Specifically, the extruder 101 is mainly used to process the substrate of the grinding material, the spraying device 102 is used to spray the surface of the substrate after processing, and the conveying mechanism 103 is a material transporting and transmission device for connecting the two processes. The conveying mechanism 103 is mainly composed of a conveying channel shell and an internal transmission platform. The spraying device 102 is arranged on the conveying channel shell of the conveying mechanism 103. A certain distance is set between the spraying device 102 and the extruder 101, so that the generated substrate can be absorbed and dissipated by the guide air pump 104 in cooperation with the corresponding absorption component. In actual operation, the extruder 101 extrude the added raw materials to obtain the corresponding substrate, which is transported through the transmission platform of the conveying mechanism 103, and then the coating is sprayed on the prepared substrate through the spraying equipment 102. During the entire transmission process, the guide air pump 104 can cooperate with the absorption component to perform multiple stages of corresponding absorption and heat dissipation to ensure the stability of the material coordination during the entire preparation process. In addition, the exhaust rack is used in conjunction with the preheating component to guide and utilize the absorbed heat, and the absorbed heat is used to preheat the material at the feed end of the extruder 101 to avoid unnecessary energy loss.

[0034] Furthermore, the spiral heat release tube 202 is sleeved on the feed channel of the extruder 101 and connected to the discharge rack 105; the heat insulation sleeve 201 is arranged on the outside of the spiral heat release tube 202 to prevent the heat released by the spiral heat release tube 202 from being directly dissipated into the external environment.

[0035] When this embodiment is in use, the feed channel of the extruder 101 is made of heat-conducting material at a section where the spiral heat-release tube 202 is provided. At the same time, under the premise of ensuring that the raw materials can be stably and normally introduced, the thickness of the entire heat-conducting section made of heat-conducting material is reduced as much as possible to ensure effective and rapid heat transfer. The spiral heat-release tube 202 is spiral-shaped, and the spiral heat-release tube 202 is wound around the outside of the heat-conducting section of the feed channel. The part of the spiral heat-release tube 202 that cooperates with the heat-conducting section of the feed channel is also made of heat-conducting material, so as to quickly dissipate the guided heat. The spiral heat-release tube 202 is connected to the discharge rack 105, and the heat-insulating sleeve 201 is provided on the outside of the spiral heat-release tube 202. The heat-insulating sleeve 201 can block the heat emitted by the spiral heat-release tube 202 to a certain extent, preventing the heat from being quickly dissipated into the external environment, thereby ensuring the stability of the raw material preheating effect inside the feed channel of the extruder 101.

[0036] Furthermore, the suction frame 301 is connected to the suction end of the guide air pump 104; the open suction cup 302 is installed on the side of the suction frame 301 close to the extruder 101; there are two scattering suction cups 303, one of which is installed on the side of the suction frame 301 close to the spraying equipment 102, and the other scattering suction cup 303 is installed on the conveying mechanism 103; the scattering suction cup 303 installed on the conveying mechanism 103 is provided with the rotating suction frame 304, one side of the rotating suction frame 304 is connected to the corresponding scattering suction cup 303, and the other side is connected to the conveying mechanism 103.

[0037] When the present embodiment is in use, the suction frame 301 is arranged at the suction end of the guide air pump 104, and the open suction cup 302 and the scattered suction cup 303 are arranged on the suction frame 301. The open suction cup 302 is closer to the discharge end of the extruder 101, and the scattered suction cup 303 is closer to the spraying equipment 102. The open suction cup 302 can absorb and dissipate heat for the workpiece that has just been processed, and the scattered suction cup 303 can absorb and dissipate heat for the workpiece after the initial absorption and heat dissipation is completed. In this way, the heat can be absorbed more thoroughly, and the open suction cup 302 is arranged closer to the air inlet port of the guide air pump 104 than the scattered suction cup 303, so that most of the heat will not be lost too much when it is transmitted to the spiral heat release tube 202 for heat release, thereby ensuring the stable and reasonable use of heat. Two scattering suction cups 303 are provided, and the two scattering suction cups 303 are respectively arranged on both sides of the shell of the conveying mechanism 103, one scattering suction cup 303 is connected to the suction frame 301, and the other scattering suction cup 303 is connected to the rotating suction frame 304. The rotating suction frame 304 is arranged on one side of the discharge port of the spraying equipment 102 on the other side connected to the scattering suction cup 303, and is mainly used to dry and dissipate the workpiece after spraying by guiding the airflow.

[0038] Preferably, the auxiliary components provided by the present invention also include an air curtain output rack 401, an air intake device 402, an intercepting component and a discharging component, the intercepting component includes a workpiece sensing mechanism 403, a connecting bracket 404, an intercepting plate 405, a screw driving mechanism 406 and a rolling contact mechanism 407, and the discharging component includes a shooting monitoring device 501, a classification receiving box 502 and an export control mechanism 503.

[0039] Furthermore, the two air curtain output racks 401 are installed on the conveying mechanism 103, and the two air curtain output racks 401 are respectively arranged on the front and rear sides of the spraying equipment 102; the air outlet end of the air inlet device 402 is connected to the air inlet ends of the two air curtain output racks 401; the intercepting component is installed on the side of the conveying mechanism 103 close to the extruder 101, and is used to block the heat generated on the discharge port side of the extruder 101; the discharge component is installed on the conveying mechanism 103, and is used to monitor, screen and discharge the prepared weld grinding material.

[0040] Furthermore, the workpiece sensing mechanism 403 is installed on the side of the conveying mechanism 103 close to the extruder 101; the connecting bracket 404 is fixedly installed on the conveying mechanism 103; the intercepting plate 405 is slidably installed on the connecting bracket 404; the screw driving mechanism 406 is installed on the connecting bracket 404, and is used to drive the intercepting plate 405; the rolling contact mechanism 407 is arranged at the bottom of the intercepting plate 405, and is used to ensure the stability of the intercepting plate 405 in blocking.

[0041] When the present embodiment is in use, the two wind curtain output racks 401 are respectively arranged at one end of the feed port of the spraying equipment 102 and the end of the discharge port of the conveying mechanism 103. The two wind curtain output racks 401 use the air inlet device 402 as the wind source, and the conveying area inside the entire conveying mechanism 103 is segmented by the two wind curtain output racks 401 to prevent the residual heat inside the heat dissipation area from affecting the subsequent processing of the spraying equipment 102. The scattering suction cup 303 and the opening suction cup 302 are blocked by setting the intercepting plate 405. The bottom of the intercepting plate 405 is provided with the rolling contact mechanism 407. The dynamic contact mechanism 407 is mainly composed of a telescopic plate with rollers at the bottom and a plurality of springs. The telescopic plate is slidably arranged at the bottom of the intercepting plate 405. A plurality of springs are arranged in the guide groove in which the telescopic plate is slidably connected to the intercepting plate 405, so that when the intercepting plate 405 moves down for shielding, the bottom roller of the telescopic plate will contact the surface of the conveying platform of the conveying mechanism 103. The rolling of the bottom roller can block the two side areas accordingly without affecting the normal operation of the conveying mechanism 103, so as to ensure the concentration of heat in the absorption area of ​​the open suction cup 302, so that the heat can be collected and utilized more comprehensively and effectively. The intercepting plate 405 is slidably arranged on the connecting bracket 404, and the intercepting plate 405 is driven by the screw driving mechanism 406 provided on the connecting bracket 404. The screw driving mechanism 406 is mainly composed of a corresponding screw and a motor for driving the screw to rotate. The intercepting plate 405 is driven by the screw cooperating with the corresponding thread provided on the intercepting plate 405. The workpiece sensing mechanism 403 is also arranged on the front side of the intercepting plate 405. The workpiece sensing mechanism 403 is mainly used for sensing the substrate original for discharging. When it is sensed that the substrate original is being discharged and transmitted, the control system of the screw driving mechanism 406 can control the screw driving mechanism 406 to drive the intercepting plate 405 to be lifted, so as to avoid collision with the substrate original during the transmission process.

[0042] Furthermore, the two shooting and monitoring devices 501 are installed on the conveying mechanism 103, and the two shooting and monitoring devices 501 are respectively arranged on the front and rear sides of the spraying equipment 102; the classification material receiving box 502 is placed at the discharge port of the conveying mechanism 103; the export control mechanism 503 is installed on the side of the conveying mechanism 103 close to the classification material receiving box 502.

[0043] When the present embodiment is in use, the installation positions of the two photographing and monitoring devices 501 and the two air curtain output racks 401 correspond to each other. The photographing and monitoring devices 501 mainly analyze the surface of the substrate workpiece by acquiring the image information of the transmitted substrate workpiece, and then determine whether the transmitted substrate workpiece has defects. When a defective substrate workpiece is detected, the defective substrate workpiece can be guided to the unqualified storage area of ​​the classification collection box 502 through the subsequent export control mechanism 503. A corresponding partition is provided in the middle of the classification collection box for dividing the entire storage area into qualified areas and unqualified areas. The export control mechanism 503 is used to guide the discharged substrate original into the corresponding area of ​​the classification collection box. The said export control mechanism 503 is mainly composed of a guide plate with a plurality of rollers arranged on the inclined surface and a gear driving element driving the guide plate to move forward and backward. By driving the guide plate to move forward and backward, the discharge position of the discharged substrate original can be changed, thereby cooperating with the two said shooting monitoring devices 501 to complete the preliminary detection and classification of the substrate original; The two photographing and monitoring devices 501 are each provided with a corresponding counting template. Since the monitoring positions of the two photographing and monitoring devices 501 are different, in order to synchronize the monitoring information of the two photographing and monitoring devices 501, the manufactured substrate originals can be counted and numbered by the corresponding counting modules, and then the monitoring information can be kept uniform through the serial numbers. At the same time, when the photographing and monitoring device 501 arranged at the feeding end of the spraying equipment 102 detects that the processed substrate original has defects, the spraying equipment 102 can be controlled not to spray the defective substrate original through the control module, thereby avoiding waste of processing raw materials.

[0044] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A weld grinding material, characterized in that: Including substrate and coating; The substrate is formed by nylon extrusion, the substrate is provided with a plurality of wrinkled surfaces, the coating is polyurethane glue containing abrasive powder, and the coating is sprayed on the corresponding substrate.

2. A method for preparing a weld grinding material, used for preparing the weld grinding material as claimed in claim 1, characterized in that: The following steps are included: Add nylon raw materials into the extrusion equipment; Extruding the added nylon raw material through an extrusion device to generate a corresponding matrix; Spraying a coating on the surface of the substrate after processing; The sprayed substrate is dried and cooled to complete the preparation of the weld grinding material.

3. A device for preparing weld grinding materials, applied to the method for preparing weld grinding materials as claimed in claim 2, comprising an extruder, a spraying device and a conveying mechanism, wherein the conveying mechanism is arranged on one side of the extruder, and the spraying device is installed on the conveying mechanism, characterized in that: Also included are auxiliary components; The auxiliary components include a guide air pump, a discharge rack, a preheating component and an absorption component. The guide cylinder is installed on the conveying mechanism. The discharge rack is arranged at the air outlet end of the guide air pump. The preheating component is connected to the discharge rack to complete the preheating of the raw materials at the feed port of the extruder. The absorption component is connected to the conveying mechanism to cooperate with the guide air pump to absorb and dissipate heat from the raw materials in the conveying mechanism.

4. The device for preparing weld grinding material according to claim 3, characterized in that: The preheating component includes an insulating sleeve and a spiral heat release tube. The spiral heat release tube is sleeved on the feed channel of the extruder and connected to the discharge rack. The insulating sleeve is arranged on the outside of the spiral heat release tube to prevent the heat released by the spiral heat release tube from being directly dissipated into the external environment.

5. The device for preparing weld grinding material according to claim 3, characterized in that: The absorption component includes a suction frame, an open suction cup, a scattering suction cup and a rotating suction frame, the suction frame is connected to the suction end of the guide air pump; the open suction cup is installed on the side of the suction frame close to the extruder; there are two scattering suction cups, one of which is installed on the side of the suction frame close to the spraying equipment, and the other scattering suction cup is installed on the conveying mechanism; the scattering suction cup installed on the conveying mechanism is provided with the rotating suction frame, one side of the rotating suction frame is connected to the corresponding scattering suction cup, and the other side is connected to the conveying mechanism.

6. The device for preparing weld grinding material according to claim 3, characterized in that: The auxiliary components also include an air curtain output rack, an air intake device, an intercepting component and a discharging component. The two air curtain output racks are installed on the conveying mechanism, and the two air curtain output racks are respectively arranged on the front and rear sides of the spraying equipment; the air outlet end of the air intake device is connected to the air inlet ends of the two air curtain output racks; the intercepting component is installed on the side of the conveying mechanism close to the extruder, and is used to block the heat generated on one side of the extruder discharge port; the discharging component is installed on the conveying mechanism, and is used to monitor, screen and discharge the prepared weld grinding materials.

7. The device for preparing weld grinding material according to claim 6, characterized in that: The intercepting component includes a workpiece sensing mechanism, a connecting bracket, an intercepting plate, a screw driving mechanism and a rolling contact mechanism. The workpiece sensing mechanism is installed on the side of the conveying mechanism close to the extruder; the connecting bracket is fixedly installed on the conveying mechanism; the intercepting plate is slidably installed on the connecting bracket; the screw driving mechanism is installed on the connecting bracket for driving the intercepting plate; the rolling contact mechanism is arranged at the bottom of the intercepting plate to ensure the stability of the intercepting plate blocking.

8. The device for preparing weld grinding material according to claim 6, characterized in that: The discharging component includes a shooting monitoring device, a classification material receiving box and an export control mechanism. The two shooting monitoring devices are installed on the conveying mechanism, and the two shooting monitoring devices are respectively arranged on the front and rear sides of the spraying equipment; the classification material receiving box is placed at the discharge port of the conveying mechanism; the export control mechanism is installed on the side of the conveying mechanism close to the classification material receiving box.

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