Scraping structure and three-roller machine thereof

Abstract

The utility model provides a scraping structure and a three-roller machine thereof, the scraping structure comprises a scraper, a first clamping piece and a second clamping piece, the scraper is arranged between the first clamping piece and the second clamping piece and is detachably connected with the first clamping piece and the second clamping piece; the scraper comprises a scraper body and a blade part arranged at the end of the scraper body, the blade part is used for being matched with the discharging roller to scrape materials, a first step is arranged on the face, facing the first clamping piece, of the blade part, and one end face of the first clamping piece abuts against the first step so that the upper surface of the first clamping piece and the front side face of the blade part can be flush and smoothly in butt joint on the same plane. A second step is arranged on the surface, facing the second clamping piece, of the blade part; one end face of the second clamping piece is an inclined face, and the lower edge of the inclined face is in flush butt joint with the convex edge of the second step. The material clamping risk can be reduced, and then the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-roller grinding, in particular to a scraping structure used for a three-roller grinding machine and a three-roller grinding machine. Background Art

[0002] At present, the three-roller machine is mainly used for mixing the components and breaking up the agglomerated silver powder during the slurry production process. It consists of a slow roller, a medium-speed roller and a fast roller. The slurry after preliminary stirring enters from the gap between the slow roller and the medium-speed roller, and comes out from the gap between the fast roller and the medium-speed roller (the ratio of the two gaps is inversely proportional to the speed ratio), and then is brought to the discharge position by the fast roller and scraped out by the scraper.

[0003] The scraper structure of the existing three-roller mill has the following problems when dispersing the slurry:

[0004] 1. The scraper and the clamping piece for holding the scraper are prone to get stuck, which makes it impossible to scrape off the slurry on the fast roller, affecting the dispersion effect and causing a large waste of slurry;

[0005] 2. After the material is stuck, the clamping parts and scraper can only be disassembled, cleaned and reinstalled, which affects production efficiency.

[0006] Therefore, there is an urgent need for a scraper structure and a three-roller machine thereof that can reduce the risk of material jamming. Utility Model Content

[0007] The utility model aims to provide a scraper structure and a three-roller machine thereof, aiming to solve the technical problem that the traditional scraper structure is easy to get stuck.

[0008] To achieve the above objectives, in a first aspect, the utility model provides a scraper structure, comprising:

[0009] A scraper, a first clamping member and a second clamping member, wherein the scraper is disposed between the first clamping member and the second clamping member and is detachably connected;

[0010] The scraper comprises a scraper body and a blade portion arranged at the end of the scraper body, the blade portion is used to match the discharge roller to scrape the material, the blade portion is provided with a first step on the surface facing the first clamping member, and one end surface of the first clamping member abuts against the first step, so that the upper surface of the first clamping member and the front side surface of the blade portion are flush and smoothly butted in the same plane;

[0011] The blade portion is provided with a second step on a surface facing the second clamping member;

[0012] One end surface of the second clamping member is an inclined surface with a first preset inclination angle, and the lower side of the inclined surface is flush with the convex edge of the second step.

[0013] As a further improvement of the above solution, the blade portion has a second preset inclination angle, and one end of the first clamping member has an inclination angle that is the same as the second preset inclination angle;

[0014] A cavity is defined between a surface of the first clamping member facing the scraper body and the scraper body.

[0015] As a further improvement of the above solution, the first clamping member includes an upper surface for material to flow through and a pressing surface in contact with the scraper body, the upper surface and the pressing surface are arranged at the second preset inclination angle, and converge into an abutting end through an abutting surface;

[0016] The abutting surface is located at the end of the first clamping member and is used to abut against the first step;

[0017] A third step is recessed at the abutting end of the pressing surface, so that the cavity is formed between the pressing surface and the scraper body at the abutting end.

[0018] As a further improvement of the above solution, the second clamping member includes a clamping plate body, one end of the clamping plate body is provided with the inclined surface, and the other end thereof is provided with a guide portion;

[0019] The guide portion and the clamp body are arranged at a preset angle, preferably, the preset angle is 90°.

[0020] As a further improvement of the above solution, the first clamping member, the scraper and the second clamping member are detachably connected via a fastening assembly;

[0021] Specifically, the first clamping member is provided with a threaded blind hole, the scraper is provided with a through hole matching the threaded blind hole, and the second clamping member is provided with a countersunk hole matching the threaded blind hole; the fastening assembly passes through the countersunk hole, the through hole and the threaded blind hole in sequence to achieve a fastened and detachable connection between the first clamping member, the scraper and the second clamping member.

[0022] In a second aspect, the utility model further provides a three-roller machine, comprising the scraper structure provided in the first aspect.

[0023] Since the utility model adopts the above technical solution, the beneficial effects of this application are:

[0024] The utility model provides a scraping structure, comprising: a scraper, a first clamping member and a second clamping member, the scraper is arranged between the first clamping member and the second clamping member and can be detachably connected; the scraper comprises a scraper body and a blade portion arranged at the end of the scraper body, the blade portion is used to match and scrape materials with a discharging roller, the blade portion is provided with a first step on the surface facing the first clamping member, one end face of the first clamping member abuts against the first step, so that the upper surface of the first clamping member and the front side surface of the blade portion are flush and smoothly connected to form a whole; the blade portion is provided with a second step on the surface facing the second clamping member; one end face of the second clamping member is an inclined surface with a first preset inclination angle, and the lower side of the inclined surface is flush with the convex edge of the second step Flush docking; in the utility model, firstly, a first step is provided on the surface of the blade facing the first clamping member, and one end face of the first clamping member abuts against the first step, so that the upper surface of the first clamping member and the front side face of the blade are flush and smoothly docked in the same plane, and this same plane constitutes the flow surface of the material. Such a setting enables the material to be discharged more smoothly along the flow surface, which can greatly reduce the material jamming compared with the traditional scraper clamping method; and in some preferred embodiments, the blade has a second preset inclination angle, and one end of the first clamping member has an inclination angle that is the same as the second preset inclination angle, which further increases the fluidity of the discharge, thereby reducing the risk of material jamming, thereby ensuring that the slurry on the fast roller can be scraped clean;

[0025] Secondly, a second step is provided on the surface of the blade facing the second clamping member; one end surface of the second clamping member is an inclined surface with a first preset inclination angle, and the lower side of the inclined surface is flush with the convex edge of the second step. The second step and the inclined surface connected to the second step are arranged so that even if leakage occurs due to improper operation or other reasons, the slurry will be blocked by the second step and cannot enter the gap between the scraper and the second clamping member, thereby preventing the slurry from accumulating in the gap;

[0026] In addition, in certain preferred embodiments, a cavity is provided between the surface of the first clamping member facing the scraper body and the scraper body. The cavity is provided so that when the slurry is stuck in the gap between the scraper and the two clamping members, the deformation direction of the scraper after the slurry is stuck is changed from perpendicular to the scraper direction to parallel to the scraper. This deformation can be offset by tilting the two clamping members at a certain angle when assembling them. Due to the existence of the cavity, the deformation will not accumulate in the direction parallel to the scraper, thereby avoiding the problem of uneven mixing of the scraped material due to the deformation of the scraper, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a cross-sectional schematic diagram of the cooperation between a scraping structure and a discharging roller disclosed in the utility model;

[0029] Figure 2 It is a partially enlarged schematic diagram of a scraper end portion of a scraper structure disclosed in the utility model;

[0030] Figure 3 It is a cross-sectional schematic diagram of the scraper disclosed in the utility model;

[0031] Figure 4 It is a cross-sectional schematic diagram of the first clamping member disclosed in the utility model;

[0032] Figure 5 It is a cross-sectional schematic diagram of the second clamping member disclosed in the utility model;

[0033] Figure 6 It is a cross-sectional schematic diagram of a traditional scraper structure.

[0034] Reference numerals:

[0035] 1. scraper; 11. scraper body; 12. blade; 13. first step; 14. second step;

[0036] 2. first clamping member; 21. abutting surface; 22. upper surface; 23. pressing surface; 24. third step;

[0037] 3. second clamping member; 31. inclined surface; 32. clamping plate body; 33. flow guide portion;

[0038] 4. Cavity; 5. Discharging roller; 6. Screw;

[0039] a. A first preset inclination angle; b. A second preset inclination angle.

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the utility model are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0044] Furthermore, the technical solutions between the various implementation modes of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] Embodiment 1:

[0046] See also Figure 1-Figure 5 The utility model provides a scraping structure, comprising:

[0047] A scraper 1, a first clamping member 2 and a second clamping member 3, wherein the scraper 1 is arranged between the first clamping member 2 and the second clamping member 3 and is detachably connected;

[0048] See also Figure 1-Figure 3 The scraper 1 includes a scraper body 11 and a blade 12 arranged at the end of the scraper body 11, the blade 12 is used to match the discharge roller 5 to scrape the material, and the blade 12 is provided with a first step 13 on the surface facing the first clamping member 2, and one end surface of the first clamping member 2 abuts against the first step 13, so that the upper surface 22 of the first clamping member 2 and the front side surface of the blade 12 are flush and smoothly docked in the same plane;

[0049] The blade portion 12 is provided with a second step 14 on a surface facing the second clamping member 3;

[0050] One end surface of the second clamping member 3 is an inclined surface 31 having a first preset inclination angle a, and the lower side of the inclined surface 31 is flush with the convex edge of the second step 14;

[0051] Specifically, in this embodiment, the scraper body 11 is a plate body with a preset thickness, and the blade portion 12 is disposed on one side of the plate body;

[0052] The blade has a front side for collecting scraped materials and a rear side for facing and / or contacting the discharge roller 5, the intersection of the front side and the rear side constitutes a scraping edge, the front side and the rear side are arranged at a second preset inclination angle b, and the rear side is arranged parallel to the plane where the plate body is located;

[0053] In the present invention, first, a first step 13 is provided on the surface of the blade 12 facing the first clamping member 2, and one end surface of the first clamping member 2 abuts against the first step 13, so that the upper surface 22 of the first clamping member 2 and the front side surface of the blade 12 are flush and smoothly connected to the same plane, and this same plane constitutes the flow surface of the material. Such a setting enables the material to be discharged more smoothly along the flow surface, compared with the traditional scraper 1 clamping method (see Figure 6 ), can greatly reduce the card material (such as Figure 6 As shown in the figure, the blade of the scraper extends out of the upper and lower clamping parts, which can easily cause material jamming in the gap between the upper clamping part and the lower clamping part. As the material is pushed, the scraper is deformed perpendicular to the scraper direction. Specifically, the deformation is usually along the following direction: Figure 6 In the direction of the arrow, the gap between the blade and the discharge roller gradually increases, the material jamming becomes more and more serious, and the scraping quality is seriously affected); and in some preferred embodiments, one end of the first clamping member 2 has an inclination angle that is the same as the second preset inclination angle b, which further increases the smoothness of the discharge, thereby reducing the risk of material jamming, thereby ensuring that the slurry on the fast roller can be scraped clean, thereby improving production efficiency;

[0054] Secondly, a second step 14 is provided on the surface of the blade 12 facing the second clamping member 3; one end surface of the second clamping member 3 is an inclined surface 31 with a first preset inclination angle a, and the lower side of the inclined surface 31 is flush with the convex edge of the second step 14. The second step 14 and the inclined surface 31 connected to the second step 14 are arranged so that even if leakage occurs due to improper operation or other reasons, the slurry will be blocked by the second step 14 and cannot enter the gap between the scraper 1 and the second clamping member 3, thereby avoiding the accumulation of slurry in the gap, thereby improving the service life of the scraper 1 structure while ensuring the scraping quality;

[0055] In addition, in certain preferred embodiments, see Figure 2 , and a cavity 4 is provided between the surface of the first clamping member 2 facing the scraper body 11 and the scraper body 11. The cavity 4 is provided so that when the slurry is stuck in the gap between the scraper 1 and the two clamping members, the deformation direction of the scraper 1 after the material is stuck is changed from perpendicular to the scraper 1 to parallel to the scraper 1 (that is, in the gap at the abutment between the blade 12 and the first clamping member 2, even if a certain amount of material is stuck, the deformation caused by the pushing of the material is along the direction such as Figure 2 The deformation will be deformed in the direction indicated by the arrow), and this deformation can be offset by tilting the two clamps at a certain angle when assembling them. Moreover, due to the existence of the cavity 4, the deformation will not accumulate in the direction parallel to the scraper 1, thereby avoiding the problem of uneven mixing of the scraped material due to the deformation of the scraper 1, thereby improving production efficiency.

[0056] As a preferred embodiment, see Figure 4 The first clamping member 2 includes an upper surface 22 for material to flow through and a pressing surface 23 in contact with the scraper body 11, the upper surface 22 and the pressing surface 23 are arranged at the second preset inclination angle b, and converge into an abutting end through the abutting surface 21;

[0057] The abutting surface 21 is located at the end of the first clamping member 2 and is used to abut against the first step 13;

[0058] The arrangement of the abutting surface 21 enables the first clamping member 2 to abut against the first step 13 to achieve positioning. Since one end of the first clamping member 2 has an inclination angle that is the same as the second preset inclination angle b, the upper surface 22 of the first clamping member 2 and the front side surface of the blade 12 are flush and smoothly butted on the same plane, thereby achieving smooth material discharge.

[0059] A third step 24 is recessed at the abutting end of the pressing surface 23 to form the cavity 4 between the pressing surface 23 and the scraper body 11 at the abutting end; the cavity 4 is arranged so that when slurry is stuck in the gap between the scraper 1 and the two clamping members, the deformation direction of the scraper 1 is changed, thereby avoiding the deformation of the blade 12 of the scraper 1 and affecting the scraping quality.

[0060] As a preferred embodiment, see Figure 5 The second clamping member 3 includes a clamping plate body 32, one end of the clamping plate body 32 is provided with the inclined surface 31, and the other end thereof is provided with a guide portion 33; the inclined surface 31 is inclined from the side of the scraper 11 to the guide portion 33

[0061] The arrangement of the inclined surface 31 and the guide portion 33 allows the material to flow to a desired position under the action of the inclined surface 31 and the guide portion 33 even if leakage occurs due to improper operation or other reasons and the slurry is blocked by the second step 14.

[0062] The guide portion 33 and the clamping plate body 32 are arranged at a preset angle. Preferably, the preset angle is 90°, so as to block and guide the material.

[0063] As a preferred embodiment, the first clamping member 2, the scraper 1 and the second clamping member 3 are detachably connected via a fastening assembly;

[0064] Specifically, the first clamping member 2 is provided with a threaded blind hole, the scraper 1 is provided with a through hole matching the threaded blind hole, and the second clamping member 3 is provided with a countersunk hole matching the threaded blind hole; the fastening assembly passes through the countersunk hole, the through hole and the threaded blind hole in sequence to achieve a fastened and detachable connection between the first clamping member 2, the scraper 1 and the second clamping member 3; preferably, the fastening assembly includes a screw 6 and a washer.

[0065] Embodiment 2:

[0066] The utility model also provides a three-roller machine, comprising a frame and a slow roller, a medium-speed roller and a fast roller installed on the frame, and the material discharging portion of the fast roller is matched with the scraper structure provided in Example 1.

[0067] In order to further verify the effectiveness of the scraper structure provided by the utility model, Figure 6 The conventional scraper structure shown and the scraper structure provided by the utility model were tested and verified. After 5 to 8 samples were made using the scraper 1 with the conventional scraper structure, the scraper 1 and the clamping parts of the upper and lower parts could not scrape the slurry on the fast roller because of the material jam, and needed to be disassembled for maintenance;

[0068] When using the scraper structure provided by the utility model, the phenomenon of the slurry on the fast roller not being scraped off only occurs after making 20 to 30 samples. It can be seen that the scraper structure provided by the utility model can greatly reduce the risk of material jamming, thereby greatly reducing the maintenance frequency and improving production efficiency.

[0069] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A scraping structure, characterized in that: include: A scraper, a first clamping member and a second clamping member, wherein the scraper is disposed between the first clamping member and the second clamping member and is detachably connected; The scraper comprises a scraper body and a blade portion arranged at the end of the scraper body, the blade portion is used to match the discharge roller to scrape the material, the blade portion is provided with a first step on the surface facing the first clamping member, and one end surface of the first clamping member abuts against the first step, so that the upper surface of the first clamping member and the front side surface of the blade portion are flush and smoothly butted in the same plane; The blade portion is provided with a second step on a surface facing the second clamping member; One end surface of the second clamping member is an inclined surface with a first preset inclination angle, and the lower side of the inclined surface is flush with the convex edge of the second step.

2. A scraper structure according to claim 1, characterized in that: The blade portion has a second preset inclination angle, and one end of the first clamping member has an inclination angle that is the same as the second preset inclination angle; A cavity is defined between a surface of the first clamping member facing the scraper body and the scraper body.

3. A scraper structure according to claim 2, characterized in that: The first clamping member comprises an upper surface for materials to flow through and a pressing surface in contact with the scraper body, the upper surface and the pressing surface are arranged at the second preset inclination angle and converge into an abutting end through the abutting surface; The abutting surface is located at the end of the first clamping member and is used to abut against the first step; A third step is recessed at the abutting end of the pressing surface, so that the cavity is formed between the pressing surface and the scraper body at the abutting end.

4. A scraper structure according to any one of claims 1 to 3, characterized in that: The second clamping member comprises a clamping plate body, one end of the clamping plate body is provided with the inclined surface, and the other end thereof is provided with a guide portion; the guide portion and the clamping plate body are arranged at a preset angle.

5. A scraper structure according to claim 4, characterized in that: The preset angle is 90°.

6. A scraper structure according to any one of claims 1 to 3, characterized in that: The first clamping member, the scraper and the second clamping member are detachably connected via a fastening assembly.

7. A three-roller machine, characterized in that: It comprises a scraper structure as described in any one of claims 1 to 6.

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