Roller grinding machine

Abstract

The utility model provides a roller grinding machine which comprises a grinding machine body, the grinding machine body comprises a machine frame and at least two grinding rollers, the at least two grinding rollers are arranged on the machine frame and arranged in the first horizontal direction, and the axial direction of the grinding rollers is the second horizontal direction perpendicular to the first horizontal direction. The roller grinding machine further comprises a material scraping device, and the material scraping device comprises at least two scraping plate assemblies and a driving mechanism. The at least two scraping plate assemblies are arranged in the first horizontal direction and correspond to the at least two grinding rollers respectively, all the scraping plate assemblies are fixedly connected, each scraping plate assembly comprises an arc-shaped scraping plate, and the arc-shaped scraping plates are matched with part of the peripheries of the grinding rollers in shape and used for shoveling materials attached to the surfaces of the grinding rollers; the driving mechanism is arranged on the rack and provided with a driving piece, one end of the driving piece is connected to the scraper blade assemblies, and the driving mechanism is used for driving the scraper blade assemblies to synchronously move towards the two sides in the second horizontal direction.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical product processing equipment, in particular to a roller grinding machine. Background Art

[0002] Grease acts to reduce the friction between friction pairs in relative motion. It has functions such as anti-corrosion and friction reduction. Grease has many product categories according to its functions. In this regard, in order to save costs, manufacturers will not implement dedicated equipment, and there will be a situation where multiple products share one roller grinder. In order to ensure product quality, the grinding roller of the roller grinder must be cleaned before switching between different types of products. The current cleaning method is manual cleaning, that is, manual wiping when the equipment is continuously rotating or rotating at intervals to clean up the grease adhering to the grinding roller. This cleaning method is time-consuming, labor-intensive, inefficient, and easily causes safety hazards to cleaning personnel. Especially when frequently switching between product types, it will cause more serious waste problems, greatly increase production costs, and greatly reduce production efficiency. Utility Model Content

[0003] A main purpose of the utility model is to overcome at least one defect of the prior art and provide a roller grinding machine capable of automatically cleaning the grinding roller.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] According to one aspect of the utility model, a roller grinder is provided, comprising a grinder body, the grinder body comprising a frame and at least two grinding rollers, at least two of the grinding rollers are arranged on the frame and arranged along a first horizontal direction, the axial direction of the grinding rollers is a second horizontal direction perpendicular to the first horizontal direction; wherein the roller grinder also comprises a scraper device, the scraper device comprises at least two scraper assemblies and a driving mechanism; at least two of the scraper assemblies are arranged along the first horizontal direction and correspond to the at least two grinding rollers respectively, each of the scraper assemblies is fixedly connected, the scraper assembly comprises an arc-shaped scraper plate, the arc-shaped scraper plate matches the shape of a part of the outer periphery of the grinding roller, and is used to scrape off the material adhered to the surface of the grinding roller; the driving mechanism is arranged on the frame and has a driving member, one end of the driving member is connected to the scraper assembly, and the driving mechanism is used to drive each of the scraper assemblies to move synchronously toward both sides in the second horizontal direction.

[0006] According to one embodiment of the utility model, the scraper assembly also includes a scraper frame, the arc-shaped scraper plate is arranged on the side of the scraper frame facing the corresponding grinding roller, the scraper frames of each scraper assembly are fixedly connected via a connecting rod, and one end of the driving member is connected to the scraper frame.

[0007] According to one embodiment of the utility model, at least two of the scraper assemblies include at least one first assembly and at least one second assembly; wherein the driving member is only connected to the scraper frame of the second assembly, and the first assembly follows the second assembly.

[0008] According to one embodiment of the utility model, the first component also includes a guide component, which includes two fixed seats and a guide rod, the two fixed seats are arranged on the frame and are respectively located on both sides of the grinding roller in the second horizontal direction, and the guide rod is connected between the two fixed seats and extends along the second horizontal direction; wherein, the scraper frame of the first component is provided with a through hole penetrating along the second horizontal direction, and the guide rod is penetrated through the through hole, so that when the first component moves with the first component, it is guided by the guide rod and maintains movement along the second horizontal direction.

[0009] According to one embodiment of the utility model, the scraper frame of the second component is also provided with a through hole penetrating along the second horizontal direction, so that the scraper frame can be adjustably connected to the driving member via a connecting member penetrating the through hole; wherein the through holes provided in the first component and the second component are both long holes, the long axis direction of the long hole is the vertical direction, and the short axis direction is the first horizontal direction, the width of the long hole in the long axis direction is greater than the outer diameter of the guide rod, and the width of the long hole in the short axis direction is equal to the outer diameter of the guide rod.

[0010] According to one embodiment of the present utility model, the grinding machine body includes three grinding rollers, and the three scraper assemblies include two of the first assemblies and one of the first assemblies. Along the first horizontal direction, the first assembly is located between the two of the second assemblies.

[0011] According to one of the embodiments of the utility model, wherein: the curvature of the corresponding circular arc of the arc scraper plate is 10° to 120°; and / or, the arc scraper plate is respectively provided with chamfered structures at both ends in the second horizontal direction; and / or, along the second horizontal direction, the length of the arc scraper plate accounts for 1 / 5 to 4 / 5 of the length of the grinding roller.

[0012] According to one embodiment of the utility model, the driving member is a worm, and the driving mechanism includes a driving motor and a transmission gear set. The driving motor is transmission-connected to the transmission gear set, and the transmission gear set cooperates with the worm to drive the worm to move along the second horizontal direction.

[0013] According to one embodiment of the utility model, the roller grinder further comprises at least one limiting mechanism, and at least one limiting mechanism is arranged corresponding to at least one scraper assembly; wherein each of the limiting mechanisms comprises two limiting signal acquisition units, and the two limiting signal acquisition units are both arranged on the frame and respectively located on both sides of the corresponding grinding roller in the second horizontal direction; wherein the driving motor is a reversible motor, and the roller grinder is configured as follows: when any of the limiting signal acquisition units contacts the arc-shaped scraper plate, the reversible motor is controlled to reverse its rotation direction by means of electrical signal transmission, thereby driving the scraper assembly to move on the opposite side of the second horizontal direction.

[0014] According to one embodiment of the utility model, at least two of the scraper assemblies include at least one first assembly and at least one second assembly; wherein the driving member is only connected to the scraper frame of the second assembly, and the first assembly follows the second assembly; wherein the limiting mechanism is arranged corresponding to the second assembly.

[0015] It can be seen from the above technical solution that the advantages and positive effects of the roller grinder proposed by the utility model are:

[0016] The roller grinder proposed in the utility model includes a grinder body and a scraper device. The grinder body includes a frame and at least two grinding rollers. The at least two grinding rollers are arranged along a first horizontal direction, and the axial direction of the grinding rollers is a second horizontal direction perpendicular to the first horizontal direction. The scraper device includes at least two scraper assemblies and a driving mechanism. The at least two scraper assemblies are arranged corresponding to the at least two grinding rollers, and each scraper assembly is fixedly connected. The scraper assembly includes an arc-shaped scraper plate, which matches the shape of a part of the outer periphery of the grinding roller and is used to remove the material adhered to the surface of the grinding roller. The driving mechanism is used to drive each scraper assembly to move synchronously toward both sides in the second horizontal direction. Through the above-mentioned structural design, the utility model can realize automatic cleaning of at least two grinding rollers at the same time, which saves time and effort, has high efficiency, is conducive to reducing production costs, improving production efficiency, and can avoid safety hazards when manual cleaning is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always represent the same or similar parts. Among them:

[0018] Figure 1 is a schematic plan view of a roller grinding machine according to an exemplary embodiment;

[0019] Figure 2 yes Figure 1 A schematic plan view of a partial structure of a roller grinder is shown;

[0020] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of a scraper device of a roller grinding machine is shown;

[0021] Figure 4 yes Figure 1 An enlarged cross-sectional view of a portion of the roller grinder is shown.

[0022] The following are the descriptions of the reference numerals:

[0023] 100. Rack;

[0024] 200. Grinding roller;

[0025] 300. Scraping device;

[0026] 301. First component;

[0027] 302. Second component;

[0028] 311. Arc scraper plate;

[0029] 312. Scraper frame;

[0030] 3121.Through hole;

[0031] 320. Connecting rod;

[0032] 331. Fixed seat;

[0033] 332. Guide rod;

[0034] 341. Driving parts;

[0035] 3411. Connectors;

[0036] 342. Driving motor;

[0037] 343. Transmission gear set;

[0038] 351. Limit signal acquisition unit;

[0039] X. First horizontal direction:

[0040] Y. Second horizontal direction. DETAILED DESCRIPTION

[0041] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present invention.

[0042] In the following description of different exemplary embodiments of the utility model, reference is made to the accompanying drawings, which form a part of the utility model and in which different exemplary structures, systems and steps that can implement multiple aspects of the utility model are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the utility model. Moreover, although the terms "above", "between", "within", etc. can be used in this specification to describe different exemplary features and elements of the utility model, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the utility model.

[0043] See also Figure 1 , which representatively shows a schematic plan view of the roller grinder proposed in the utility model. In this exemplary embodiment, the roller grinder proposed in the utility model is described by taking a three-roll grinder as an example. It is easy for those skilled in the art to understand that in order to apply the relevant design of the utility model to other types of roller grinders, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the roller grinder proposed in the utility model.

[0044] like Figure 1 As shown, in one embodiment of the present invention, the roller grinding machine provided by the present invention comprises a grinding machine body, the grinding machine body comprises a frame 100 and at least two grinding rollers 200, the at least two grinding rollers 200 are arranged on the frame 100 and arranged along a first horizontal direction X, and the axial direction of the grinding roller 200 is a second horizontal direction Y perpendicular to the first horizontal direction X. Figures 2 to 4 , Figure 2 A schematic plan view of a partial structure of a roller grinder is representatively shown in FIG. Figure 3 A three-dimensional structural schematic diagram of a scraper device 300 of a roller grinder is representatively shown in FIG. Figure 4The enlarged cross-sectional view of a part of the structure of the roller grinder is representatively shown in FIG. 3 , wherein the connection structure of the driving member 341 (worm) and the connecting member 3411 (bolt) is specifically shown, and the scraper frame 312 is hidden. The structure, connection mode and functional relationship of each main component of the roller grinder proposed by the utility model will be described in detail below in conjunction with the above-mentioned drawings.

[0045] like Figures 1 to 3 As shown, in one embodiment of the present invention, the roller grinding machine proposed in the present invention further includes a scraper device 300, and the scraper device 300 includes at least two scraper assemblies and a driving mechanism. At least two scraper assemblies are arranged along the first horizontal direction X, and at least two scraper assemblies are arranged corresponding to at least two grinding rollers 200, that is, the number of scraper assemblies is the same as that of grinding rollers 200 and they are arranged one by one. The scraper assemblies are fixedly connected together. Each scraper assembly includes an arc scraper plate 311, which matches the shape of a part of the outer periphery of the grinding roller 200, and the arc scraper plate 311 can remove materials (such as grease) adhered to the surface of the grinding roller 200. The driving mechanism is arranged on the frame 100, and the driving mechanism has a driving member 341, one end of which is connected to the scraper assembly, and the driving mechanism is used to drive each scraper assembly to move synchronously on both sides in the second horizontal direction Y. Through the above structural design, the utility model can realize automatic cleaning of at least two grinding rollers 200 at the same time, which saves time and effort and has high efficiency, is conducive to reducing production costs, improving production efficiency, and can avoid the safety hazards existing in manual cleaning.

[0046] In one embodiment of the present invention, the material of the arc scraper plate 311 can be plastic, rubber or carbon fiber with corrosion resistance. Through the above design, the present invention can ensure that the structure of the arc scraper plate 311 is light and thin and has sufficient rigidity and strength, and can prevent the arc scraper plate 311 from damaging the grinding roller 200. In some embodiments, the material of the arc scraper plate 311 can also be metal.

[0047] like Figures 1 to 3 As shown, in one embodiment of the present invention, the scraper assembly may further include a scraper frame 312, and the arc-shaped scraper plate 311 is arranged on the side of the scraper frame 312 facing the corresponding grinding roller 200. The scraper frames 312 of each scraper assembly are fixedly connected via a connecting rod 320, and one end of a driving member 341 is connected to the scraper frame 312. Through the above structural design, the present invention can use the scraper frame 312 to arrange the arc-shaped scraper plate 311 and connect the driving member 341 and the connecting rod 320, which is conducive to improving the structural integrity of the scraper assembly and facilitating the overall assembly and replacement of the scraper assembly.

[0048] Based on the structural design of the scraper assembly including the scraper frame 312, in one embodiment of the utility model, the scraper frame 312 can be connected to the middle position of the arc scraper plate 311 in the second horizontal direction Y via its lower end (i.e., the end facing the grinding roller 200), thereby further improving the efficiency of processing adhered materials during reciprocating motion.

[0049] In one embodiment of the present invention, the scraper frame 312 may be made of metal, such as titanium (Ti). In some embodiments, the scraper frame 312 may also be made of corrosion-resistant plastic or carbon fiber. Through the above design, the present invention can make the scraper frame 312 lighter and have sufficient rigidity and strength.

[0050] In one embodiment of the present invention, the material of the connecting rod 320 can be metal. In some embodiments, the material of the connecting rod 320 can also be plastic or carbon fiber.

[0051] like Figure 3 As shown, in one embodiment of the present invention, at least two scraper assemblies may specifically include at least one first assembly 301 and at least one second assembly 302. The driving member 341 is only connected to the scraper frame 312 of the second assembly 302, and since the scraper assemblies are fixedly connected together, when the driving mechanism drives the second assembly 302 to move, the first assembly 301 will also move synchronously. In other words, the first assembly 301 follows the second assembly 302. Specifically, Figure 3 Taking the scraper device 300 shown as including three scraper assemblies as an example, the three scraper assemblies may include two first assemblies 301 and one first assembly 301. Through the above structural design, the utility model can use a relatively small number of drive mechanisms to achieve synchronous driving of all scraper assemblies, which is conducive to reducing the number of parts, saving space for the arrangement of parts, and reducing the structural complexity of the equipment. In some embodiments, still taking the scraper device 300 including three scraper assemblies as an example, when the scraper device 300 includes a first assembly 301 and a second assembly 302, the three scraper assemblies may also be a first assembly 301 and two second assemblies 302 respectively. Alternatively, each scraper assembly of the scraper device 300 does not distinguish between the first assembly 301 and the second assembly 302, that is, each scraper assembly can be driven by a drive mechanism, and is not limited to the above embodiment.

[0052] like Figure 3As shown, based on the structural design that the scraper assembly includes a first assembly 301 and a second assembly 302, in one embodiment of the utility model, the first assembly 301 may also include a guide assembly, the guide assembly including two fixed seats 331 and a guide rod 332, the two fixed seats 331 are both arranged on the frame 100 and are respectively located on both sides of the grinding roller 200 in the second horizontal direction Y, the guide rod 332 is connected between the two fixed seats 331 and extends along the second horizontal direction Y. On this basis, the scraper frame 312 of the first assembly 301 is provided with a through hole 3121 penetrating along the second horizontal direction Y, and the guide rod 332 is penetrated through the through hole 3121, so that when the first assembly 301 moves with the first assembly 301, it is guided by the guide rod 332 and keeps moving along the second horizontal direction Y. Through the above structural design, the utility model can guide the first component 301 along the second horizontal direction Y. Since all scraper components are fixedly connected together, it is possible to guide all scraper components including the second component 302 along the second horizontal direction Y, thereby ensuring the stability and accuracy of the movement of the scraper components, and reducing the number of guide components. In addition, since the driving mechanism is connected to the scraper frame 312 of the second component 302 via the driving member 341, the utility model only uses the guiding component to guide the first component 301, and can also avoid structural interference between the guiding component and the driving member 341 and other structures, which is conducive to improving the rationality of the structure.

[0053] In one embodiment of the present invention, the guide rod 332 may be made of metal.

[0054] In one embodiment of the present invention, the fixing seat 331 can be fixed on the frame 100 by welding.

[0055] like Figure 3 and Figure 4As shown, based on the structural design that the first component 301 includes a guide component and the scraper frame 312 of the first component 301 is provided with a through hole 3121, in one embodiment of the utility model, the scraper frame 312 of the second component 302 can also be provided with a through hole 3121 penetrating along the second horizontal direction Y, and accordingly, the scraper frame 312 of the second component 302 can be adjustably connected to the driving member 341 via a connecting member 3411 (such as but not limited to a bolt) penetrating the through hole 3121. On this basis, the through holes 3121 provided in the first component 301 and the second component 302 can both be long holes, and the so-called long holes can be understood as a channel shape with semicircular ends and a rectangular middle. Among them, the long axis direction of the long hole is the vertical direction, and the short axis direction of the long hole is the first horizontal direction X, the width of the long hole in the long axis direction is greater than the outer diameter of the guide rod 332, and the width of the long hole in the short axis direction is equal to the outer diameter of the guide rod 332. Through the above-mentioned structural design, the utility model can utilize the cooperation between the through hole 3121 of the first component 301 and the guide rod 332 to adjust the relative position of the scraper frame 312 and the guide rod 332 in the vertical direction of the first component 301, and at the same time, it can utilize the cooperation between the through hole 3121 and the connecting member 3411 of the second component 302 to adjust the relative position of the scraper frame 312 and the driving member 341 (connecting member 3411) in the vertical direction of the second component 302, thereby realizing the position adjustment of each scraper component relative to the frame 100 (that is, the grinding roller 200) in the vertical direction.

[0056] like Figure 2 and Figure 3 As shown, based on the structural design that the scraper assembly includes a first assembly 301 and a second assembly 302, in one embodiment of the utility model, the grinder body may include three grinding rollers 200. In other words, the three-roller grinder is used as an example for explanation in this embodiment, that is, the roller grinder includes three grinding rollers 200, and the scraper device 300 includes three scraper assemblies. On this basis, the three scraper assemblies may include two first assemblies 301 and one first assembly 301. Among them, along the first horizontal direction X, the first assembly 301 may be located between the two second assemblies 302. Through the above structural design, the utility model selectively connects the drive mechanism to a scraper assembly located in the middle in the second horizontal direction Y via the drive member 341, thereby further improving the rationality of the structure and facilitating the arrangement of various components.

[0057] In one embodiment of the present invention, the curvature of the corresponding arc of the arc-shaped scraper plate 311 can be 10° to 120°, such as 10°, 30°, 45°, 60°, 90°, 120°, etc. Through the above structural design, the present invention can avoid the curvature of the corresponding arc of the arc-shaped scraper plate 311 being too small, thereby enabling the arc-shaped scraper plate 311 to cover a certain area of ​​the circumferential surface of the grinding roller 200 in the circumferential direction, thereby ensuring the cleaning effect of the arc-shaped scraper plate 311. At the same time, the present invention can also avoid the curvature of the corresponding arc of the arc-shaped scraper plate 311 being too large, which causes the arc-shaped scraper plate 311 to be too large in volume, waste materials, and increase weight. In some embodiments, the curvature of the corresponding circular arc of the arc scraper plate 311 may also be less than 10°, or may be greater than 120°, such as 9.5°, 135°, 150°, etc. In addition, the curvature of the corresponding circular arc of the arc scraper plate 311 should be less than 180° to prevent the arc scraper plate from being unable to be removed from the grinding roller 200.

[0058] In one embodiment of the present invention, the two ends of the arc-shaped scraper plate 311 in the second horizontal direction Y may be provided with chamfer structures. Specifically, the corresponding angle of the chamfer structure may be 5° to 20°. Through the above structural design, the present invention can utilize the chamfer structure to prevent the arc-shaped scraper plate 311 from damaging the grinding roller 200, which is beneficial to prolonging the service life of the equipment.

[0059] In one embodiment of the present invention, along the second horizontal direction Y, the length of the arc scraper plate 311 may account for 1 / 5 to 4 / 5 of the length of the grinding roller 200, such as 1 / 5, 2 / 5, 1 / 2, 3 / 5, 4 / 5, etc. Through the above structural design, the present invention can prevent the length of the arc scraper plate 311 from being too small to affect its cleaning efficiency on the grinding roller 200, and can also prevent the length of the arc scraper plate 311 from being too large to make it difficult to adjust along the second horizontal direction Y. In some embodiments, along the second horizontal direction Y, the length of the arc scraper plate 311 may account for less than 1 / 5 of the length of the grinding roller 200, or may be greater than 4 / 5, such as 1 / 6, 5 / 6, etc., which is not limited to this embodiment.

[0060] like Figure 1 and Figure 3As shown, in one embodiment of the utility model, the driving member 341 can be a worm, and the driving mechanism can also include a driving motor 342 and a transmission gear set 343. Specifically, the driving motor 342 is connected to the transmission gear set 343, and the transmission gear set 343 cooperates with the worm to drive the worm to move along the second horizontal direction Y. Accordingly, the driving mechanism can drive the scraper assembly to move along the second horizontal direction Y by driving the worm. On this basis, by utilizing the transmission characteristics of the transmission gear set 343 and the worm, the utility model can provide a stable and precise driving function.

[0061] In one embodiment of the present invention, the worm may be made of metal, such as stainless steel, thereby ensuring sufficient structural strength.

[0062] In one embodiment of the present invention, the working voltage of the reversible motor may be 220V to 380V, for example, 220V.

[0063] In one embodiment of the present invention, the transmission gear set 343 can be specifically a gear box, and the gear box can be fixed to the frame 100 by welding. In addition, the reversible motor can be fixed to one side of the gear box by bolt connection.

[0064] like Figure 1 As shown, in one embodiment of the present invention, the roller grinder proposed in the present invention may further include at least one limiting mechanism, and at least one limiting mechanism is arranged corresponding to at least one scraper assembly. On this basis, each limiting mechanism may include two limiting signal acquisition units 351, and the two limiting signal acquisition units 351 are both arranged on the frame 100 and are respectively located on both sides of the corresponding grinding roller 200 in the second horizontal direction Y. Furthermore, the drive motor 342 is a reversible motor, that is, the rotation direction of the output shaft of the drive motor 342 is bidirectionally reversible, in other words, the worm can move toward the opposite sides of the second horizontal direction Y. Accordingly, the roller grinder proposed in the present invention can control the reversible motor to reverse the rotation direction in an electrical signal transmission mode when any limiting signal acquisition unit 351 contacts the arc scraper plate 311, thereby driving the scraper assembly to move along the opposite side of the second horizontal direction Y. Through the above structural design, the utility model can avoid the drive mechanism from excessively driving the scraper assembly to move, and avoid the scraper assembly (such as the arc scraper plate 311) and the frame 100 from being squeezed and causing equipment damage.

[0065] Based on the structural design of the roller grinder being provided with a limiting structure, in one embodiment of the present utility model, when the scraper assembly includes a first assembly 301 and a second assembly 302, that is, when the driving member 341 is only connected to the scraper frame 312 of the second assembly 302 and the first assembly 301 follows the second assembly 302, the limiting mechanism can be arranged only corresponding to the second assembly 302. Specifically, the two limiting signal acquisition units 351 of the limiting mechanism are arranged on both sides of the second horizontal direction Y corresponding to the arc-shaped scraper plate 311 of the second assembly 302, respectively. Through the above structural design, the present utility model is conducive to further reducing the number of parts on the basis of realizing the driving limiting function of the scraper assembly.

[0066] Based on the above description of several exemplary embodiments of the present invention, the main working principles of the roller grinder proposed by the present invention include:

[0067] The reversible motor drives the worm to move along the second horizontal direction Y, and the arc scraper 311 of the second component 302 is driven to move by the worm, and the arc scraper 311 of the two first components 301 are synchronously moved by the connection of the connecting rod 320. When the arc scraper 311 moves to the end of the stroke, the limit signal acquisition unit 351 is triggered, and the limit signal acquisition unit 351 is interlocked with the reversible motor signal, and the reversible motor reverses, thereby realizing the reciprocating movement of the arc scraper 311 on the grinding roller 200 along the second horizontal direction Y, thereby scraping off the grease and other materials adhered to the grinding roller 200, so that the grinding roller 200 is fully cleaned. At the same time, the upper and lower relative positions of the scraper frame 312 and the worm can be adjusted by adjusting the connecting piece 3411 on the worm, so that the arc scraper 311 can be adjusted up and down.

[0068] It should be noted that the roller grinders shown in the drawings and described in this specification are only a few examples of the many types of roller grinders that can adopt the principles of the present invention. It should be clearly understood that the principles of the present invention are by no means limited to any details or any components of the roller grinders shown in the drawings or described in this specification.

[0069] In summary, the roller grinder proposed in the utility model includes a grinder body and a scraper device 300. The grinder body includes a frame 100 and at least two grinding rollers 200. The at least two grinding rollers 200 are arranged along a first horizontal direction X, and the axial direction of the grinding roller 200 is a second horizontal direction Y perpendicular to the first horizontal direction X. The scraper device 300 includes at least two scraper assemblies and a driving mechanism. The at least two scraper assemblies are arranged corresponding to the at least two grinding rollers 200, and each scraper assembly is fixedly connected. The scraper assembly includes an arc-shaped scraper plate 311, which matches the shape of a part of the outer periphery of the grinding roller 200 and is used to remove the material adhered to the surface of the grinding roller 200. The driving mechanism is used to drive each scraper assembly to move synchronously toward both sides in the second horizontal direction Y. Through the above structural design, the utility model can simultaneously realize automatic cleaning of at least two grinding rollers 200, which saves time and effort, has high efficiency, is conducive to reducing production costs, improving production efficiency, and can avoid safety hazards when manual cleaning is used.

[0070] The exemplary embodiment of the roller grinder proposed by the utility model is described and / or illustrated in detail above. However, the embodiments of the utility model are not limited to the specific embodiments described here. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described here. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated here, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0071] Although the roller grinding machine proposed by the present invention has been described according to various specific embodiments, those skilled in the art will recognize that the present invention can be implemented with modifications within the spirit and scope of the claims.

Claims

1. A roller grinder, comprising a grinder body, wherein the grinder body comprises a frame and at least two grinding rollers, wherein the at least two grinding rollers are arranged on the frame and arranged along a first horizontal direction, and the axial direction of the grinding rollers is a second horizontal direction perpendicular to the first horizontal direction; characterized in that: The roller grinding machine also includes a scraping device, and the scraping device includes: At least two scraper assemblies are arranged along the first horizontal direction and correspond to at least two of the grinding rollers respectively, each of the scraper assemblies is fixedly connected, and the scraper assemblies include an arc-shaped scraper plate, which matches the shape of a portion of the outer circumference of the grinding roller and is used to scrape off materials adhered to the surface of the grinding roller; and The driving mechanism is arranged on the frame and has a driving member, one end of which is connected to the scraper assembly. The driving mechanism is used to drive each of the scraper assemblies to move synchronously toward both sides in the second horizontal direction.

2. The roller grinding machine according to claim 1, characterized in that The scraper assembly also includes a scraper frame, the arc-shaped scraper plate is arranged on the side of the scraper frame facing the corresponding grinding roller, the scraper frames of each scraper assembly are fixedly connected via a connecting rod, and one end of the driving member is connected to the scraper frame.

3. The roller grinding machine according to claim 2, characterized in that At least two of the scraper assemblies include at least one first assembly and at least one second assembly; wherein the driving member is only connected to the scraper frame of the second assembly, and the first assembly follows the second assembly.

4. The roller grinding machine according to claim 3, characterized in that The first component also includes a guide component, which includes two fixed seats and a guide rod. The two fixed seats are both arranged on the frame and are respectively located on both sides of the grinding roller in the second horizontal direction. The guide rod is connected between the two fixed seats and extends along the second horizontal direction. The scraper frame of the first component is provided with a through hole passing through the second horizontal direction. The guide rod is penetrated through the through hole, so that when the first component moves with the first component, it is guided by the guide rod and keeps moving along the second horizontal direction.

5. The roller grinding machine according to claim 4, characterized in that The scraper frame of the second component is also provided with a through hole penetrating along the second horizontal direction, so that the scraper frame can be adjustably connected to the driving member via a connecting member penetrating the through hole; wherein, the through holes opened in the first component and the second component are both long holes, the long axis direction of the long hole is the vertical direction, and the short axis direction is the first horizontal direction, the width of the long hole in the long axis direction is greater than the outer diameter of the guide rod, and the width of the long hole in the short axis direction is equal to the outer diameter of the guide rod.

6. The roller grinding machine according to claim 4, characterized in that The grinding machine body includes three grinding rollers, and the three scraper assemblies include two of the first assemblies and one of the first assemblies. Along the first horizontal direction, the first assembly is located between two of the second assemblies.

7. The roller grinding machine according to claim 1, characterized in that: The arc angle of the arc scraper plate is 10° to 120°; and / or The arc-shaped scraper plate is provided with chamfered structures at both ends in the second horizontal direction; and / or Along the second horizontal direction, the length of the arc-shaped scraper plate accounts for 1 / 5 to 4 / 5 of the length of the grinding roller.

8. The roller grinding machine according to claim 1, characterized in that The driving member is a worm, and the driving mechanism includes a driving motor and a transmission gear set. The driving motor is connected to the transmission gear set, and the transmission gear set cooperates with the worm to drive the worm to move along the second horizontal direction.

9. The roller grinding machine according to claim 8, characterized in that The roller grinder also includes at least one limiting mechanism, and at least one limiting mechanism is arranged corresponding to at least one scraper assembly; wherein each of the limiting mechanisms includes two limiting signal acquisition units, and the two limiting signal acquisition units are both arranged on the frame and respectively located on both sides of the corresponding grinding roller in the second horizontal direction; wherein the driving motor is a reversible motor, and the roller grinder is configured as follows: when any of the limiting signal acquisition units contacts the arc-shaped scraper plate, the reversible motor is controlled to reverse its rotation direction by means of electrical signal transmission, thereby driving the scraper assembly to move on the opposite side of the second horizontal direction.

10. The roller grinding machine according to claim 9, characterized in that The scraper assembly also includes a scraper frame, the arc-shaped scraper plate is arranged on the side of the scraper frame facing the corresponding grinding roller, the scraper frames of each scraper assembly are fixedly connected via a connecting rod, and one end of the driving member is connected to the scraper frame; at least two scraper assemblies include at least one first component and at least one second component; wherein the driving member is only connected to the scraper frame of the second component, and the first component follows the second component; wherein the limiting mechanism is arranged corresponding to the second component.

Images