Mixing equipment for CBN (Cubic Boron Nitride) grinding wheel production and CBN grinding wheel production system

Abstract

The invention relates to the technical field of grinding wheel production equipment, and provides material mixing equipment for CBN grinding wheel production and a CBN grinding wheel production system.The material mixing equipment for CBN grinding wheel production comprises a material mixing barrel and a material mixing hopper; the mixing hopper driving device is in transmission connection with the mixing hopper so as to drive the mixing hopper to rotate; the raw material feeding assembly comprises a feeding hopper arranged on the material mixing barrel, the feeding hopper penetrates through the material mixing barrel, the raw material feeding assembly further comprises a flow guide hopper and a plurality of liquid guide rod sets, the first end of the flow guide hopper is connected to a raw material outlet in the lower end of the feeding hopper, the flow guide hopper comprises a flow guide bottom plate, and each liquid guide rod set comprises a plurality of liquid guide rods arranged at intervals; and the wetting agent input device is arranged in the material mixing barrel and penetrates through the material mixing barrel, each wetting agent container is connected with a telescopic driving mechanism, each wetting agent container comprises a plurality of liquid outlets, valves capable of being opened and closed are arranged in the liquid outlets, and the material mixing efficiency can be improved through the material mixing equipment.

Description

Technical Field

[0001] The present application relates to the technical field of grinding wheel production equipment, and more specifically, to a mixing device for CBN grinding wheel production. Background Art

[0002] CBN grinding wheel is a tool used for grinding, polishing and lapping. Among them, CBN grinding wheel is made of CBN (cubic boron nitride) abrasive as raw material, and metal powder, resin powder, ceramic and electroplated metal as binder. In its production process, the abrasive and binder need to be mixed and pressed into shape in a mixing device and then sintered to melt the binder to wrap and fix the abrasive. In order to make the binder adhere well to the surface of the abrasive, the abrasive and the wetting agent are usually mixed evenly. When the binder and the wetting agent come into contact, they will adhere well to the surface of the abrasive. In the prior art, the abrasive and the wetting agent are directly put into the mixing device in proportion. This makes the abrasive agglomerate when it comes into direct contact with a large amount of wetting agent, and the mixing is uneven, which leads to a longer time required for the abrasive and the wetting agent to be completely mixed. The abrasive rubs for a long time and heats up, which accelerates the drying of the wetting agent and affects the mixing effect of the abrasive and the wetting agent. Summary of the invention

[0003] In view of this, the present application provides a mixing device for CBN grinding wheel production to solve the technical problem of poor mixing effect when mixing grinding wheel abrasive and wetting agent in the prior art.

[0004] The present application provides a mixing device for producing CBN grinding wheels, wherein the mixing device for producing CBN grinding wheels comprises: A mixing barrel, a mixing hopper rotatably arranged in the mixing barrel, the mixing hopper and the mixing barrel enclosing a mixing bin; A mixing hopper driving device, the mixing hopper driving device is drivingly connected to the mixing hopper to drive the mixing hopper to rotate; A raw material feeding assembly, comprising a feeding hopper arranged on the mixing barrel, the feeding hopper passes through the mixing barrel, the upper end of the feeding hopper is located outside the mixing barrel and forms a raw material inlet, and the lower end of the feeding hopper forms a raw material outlet, the raw material feeding assembly also comprises a guide hopper and a plurality of groups of liquid guiding rod groups, the first end of the guide hopper is connected to the raw material outlet at the lower end of the feeding hopper, the guide hopper comprises a guide bottom plate, the guide bottom plate is arranged obliquely downward from the first end of the guide hopper toward the second end of the guide hopper, the plurality of groups of liquid guiding rod groups are sequentially arranged on the guide bottom plate along the direction from the first end of the guide hopper toward the second end of the guide hopper, each group of liquid guiding rod groups comprises a plurality of liquid guiding rods arranged at intervals, and the first end of the liquid guiding rod protrudes from the upper surface of the guide bottom plate; A wetting agent input device, the wetting agent input device is arranged on the mixing barrel and passes through the mixing barrel, the wetting agent input device includes a plurality of wetting agent containers whose number is consistent with the plurality of liquid guiding rod groups and whose positions correspond, each of the wetting agent containers is connected to a telescopic driving mechanism, each of the wetting agent containers includes a plurality of liquid outlets whose number is consistent with the plurality of liquid guiding rods in the corresponding liquid guiding rod group and whose positions correspond, an openable and closable valve is arranged in the liquid outlet, the telescopic driving mechanism is used to drive the wetting agent container to move between an open position and a closed position, in the open position, the first end of each of the liquid guiding rods pushes the openable and closable valve to the open position to open the liquid outlet; in the closed position, the liquid guiding rod is spaced from the openable and closable valve, and the openable and closable valve closes the liquid outlet.

[0005] Furthermore, the liquid guiding rod is rotatably mounted on the guide bottom plate, and the wetting agent input device further comprises a liquid guiding rod driving mechanism, which is transmission-connected to each of the liquid guiding rods so as to be able to drive the liquid guiding rods to rotate.

[0006] Further, the liquid guiding rod driving mechanism includes a liquid guiding rod driving motor, and a liquid guiding rod driving gear is connected to the output shaft of the liquid guiding rod driving motor. The second end of each liquid guiding rod protrudes from the lower surface of the guide base plate and is installed with a liquid guiding rod transmission gear. The liquid guiding rod driving gear is meshed with a liquid guiding rod transmission gear, and the liquid guiding rod transmission gears corresponding to adjacent liquid guiding rods in each group of liquid guiding rods are meshed in sequence, and the liquid guiding rod transmission gear corresponding to one liquid guiding rod in each liquid guiding rod group is meshed with the liquid guiding rod transmission gear corresponding to one liquid guiding rod in the adjacent liquid guiding rod group.

[0007] Furthermore, the liquid-conducting rod comprises a rod body and a thimble serving as a first end portion of the liquid-conducting rod.

[0008] Furthermore, the feed hopper has an upper chamber, a lower chamber and a laterally extending cylindrical chamber, the upper end of the cylindrical chamber is connected to the upper chamber, the upper chamber extends to the raw material inlet, the lower end of the cylindrical chamber is connected to the lower chamber, the lower chamber extends to the raw material outlet, the width of the upper chamber is smaller than the diameter of the cylindrical chamber, the width of the lower chamber is smaller than the diameter of the cylindrical chamber, the raw material feeding assembly also includes a guide column driving mechanism and a guide column rotatably arranged in the cylindrical chamber, an inclined annular groove extending from one end to the other end is formed on the circumferential surface of the guide column, the guide column is in sealing contact with the cavity wall of the cylindrical chamber, the axis of the guide column is consistent with the axis of the cylindrical chamber, and the guide column driving mechanism is transmission-connected to one end of the guide column to drive the guide column to rotate around its axis in the cylindrical chamber.

[0009] Furthermore, the wetting agent container includes a container body and a liquid guide tube arranged at the lower end of the container body, the upper end of the liquid guide tube is connected to the container body, the lower end of the liquid guide tube forms the liquid outlet, the telescopic driving mechanism is a cylinder, the cylinder body of the cylinder is connected to the mixing barrel, and the piston rod of the cylinder is connected to the container body.

[0010] Furthermore, the mixing hopper includes a turntable and a side ring wall arranged around the upper edge of the turntable, the guide hopper is located below the upper end surface of the side ring wall, and the mixing equipment for CBN grinding wheel production also includes a binder input device, the binder input device includes a lifting cylinder that can be lifted and lowered through the mixing bin and the outside of the mixing barrel and a reciprocating drive mechanism arranged on the mixing barrel, the lower port of the lifting cylinder is formed with a release plate, the release plate includes a plurality of release through holes, the reciprocating drive mechanism includes a reciprocating rod extending into the lifting cylinder and a piston connected to the end of the reciprocating rod, and the piston is sealed with the inner wall of the lifting cylinder.

[0011] Furthermore, an inclined guide ring groove extending from one axial end to the other end of the side ring wall is formed on the inner wall surface of the side ring wall, and a guide rod is connected to the outer side of the lifting cylinder, and the end of the guide rod is located in the inclined guide ring groove.

[0012] Furthermore, the turntable forms a conical disk which gradually sinks axially therein, and a discharge port is arranged at the center of the turntable. The mixing equipment for producing the grinding wheel also includes a discharge pipe, a port at one end of the discharge pipe is connected to the discharge port, and a discharge valve is installed at one end of the discharge pipe, and the discharge valve is used to open or close the port at one end of the discharge pipe, and the other end of the discharge pipe extends out of the mixing barrel and has a discharge port. A ring gear is installed at the lower end of the conical disk, and the mixing hopper driving device is a mixing hopper driving motor arranged in the mixing barrel and located below the mixing hopper, and the output shaft of the mixing hopper driving motor is connected to a mixing hopper driving gear, and the mixing hopper driving gear is meshed with the ring gear.

[0013] In addition, the present invention also provides a CBN grinding wheel production system, wherein the CBN grinding wheel production system includes the above-mentioned mixing device for CBN grinding wheel production.

[0014] Compared with the prior art, in the mixing equipment for CBN grinding wheel production provided by the present invention, the telescopic driving mechanism can first drive the wetting agent container to the open position, at which time the wetting agent flowing out of the liquid outlet can flow along the liquid guiding rod to the guide bottom plate and cover the entire outer peripheral surface of the liquid guiding rod, and then the raw materials for grinding wheel production, while passing through the guide bucket, are contacted and mixed with the wetting agent on the guide bottom plate, and on the other hand, the raw materials for grinding wheel production, while passing through the guide bucket, form a raw material flow on the guide bottom plate, and multiple liquid guiding rods are dispersedly interspersed in the raw material flow, so that the raw materials at multiple different positions in the raw material flow are contacted and mixed with the wetting agent on the outer peripheral surface of the liquid guiding rod, thereby increasing the uniformity of the mixing of the raw material and the wetting agent and avoiding (or at least being able to slow down) the mixing of the raw material and the wetting agent. (Answers) The problem of poor mixing effect of grinding wheel abrasive and wetting agent caused by agglomeration when the raw material (abrasive) directly contacts with a large amount of wetting agent greatly improves the mixing effect of raw materials and wetting agent in grinding wheel production; in addition, since the raw material feeding assembly includes multiple groups of liquid guiding rod groups, and each group of liquid guiding rod groups corresponds to a wetting agent container, it is possible to control which wetting agent containers are in the open position and which are in the closed position according to actual needs. For example, according to the properties of the raw material, flow rate, flow rate and other factors, the number of wetting agent containers in the open position and the position of the wetting agent container in the open position can be adaptively adjusted, thereby adaptively adjusting the amount of wetting agent arranged on the guide bottom plate and the liquid guiding rod, and flexibly adapting to more complex raw material and wetting agent mixing needs.

[0015] Other advantages of the present application will be described in more detail in the specific implementation section below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a three-dimensional schematic diagram of a mixing device for producing CBN grinding wheels according to an embodiment of the present application; Figure 2 This is a three-dimensional schematic diagram of some components of a mixing device for producing CBN grinding wheels according to an embodiment of the present application; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the principle of a liquid guide pipe in a mixing device for producing CBN grinding wheels according to an embodiment of the present application; Figure 5This is a schematic diagram of the principle of meshing of transmission gears of each liquid guide rod in a mixing device for CBN grinding wheel production according to an embodiment of the present application; Figure 6 It is a cutaway perspective schematic diagram of a feed hopper in a mixing device for producing CBN grinding wheels according to an embodiment of the present application; Figure 7 This is a cross-sectional view of the internal structure of some parts of a mixing device for producing CBN grinding wheels according to an embodiment of the present application; Figure 8 for Figure 7 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. One or more embodiments of the present application are exemplarily given in the drawings to make the understanding of the technical solution disclosed in the present application more accurate and thorough. However, it should be understood that the present application can be implemented in a variety of different forms and is not limited to the embodiments described below.

[0019] The same or similar numbers in the drawings of the present application correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0021] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is 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 this application.

[0022] See also Figures 1 to 8 According to one aspect of the present invention, a mixing device for producing a CBN grinding wheel is provided, wherein the mixing device for producing a CBN grinding wheel comprises: A mixing barrel 100, a mixing hopper 200 rotatably disposed in the mixing barrel 100, and the mixing hopper 200 and the mixing barrel 100 enclose a mixing bin; A mixing hopper driving device 1, the mixing hopper driving device 1 is transmission-connected to the mixing hopper 200 to drive the mixing hopper 200 to rotate; The raw material feeding assembly includes a feeding hopper 300 arranged on the mixing barrel 100, the feeding hopper 300 penetrates the mixing barrel 100, the upper end of the feeding hopper 300 is located outside the mixing barrel 100 and forms a raw material inlet 301, and the lower end of the feeding hopper 300 forms a raw material outlet 305. The raw material feeding assembly also includes a guide bucket 3 and a plurality of groups of liquid guiding rod groups. The first end of the guide bucket 3 is connected to the raw material outlet 305 at the lower end of the feeding hopper 300. A heating chamber 2 can also be arranged below the first end of the guide bucket 3 (the guide bottom plate 31) for placing a heating element. The guide bucket 3 includes a guide bottom plate 31, and specifically can also include baffles 32 located on both sides of the guide bottom plate 31. The guide bottom plate 31 extends from the first end of the guide bucket 3 toward the first end of the guide bucket 3. The two ends are arranged obliquely downward, so that the raw materials for grinding wheel production can fall into the first end of the guide bucket 3 after entering from the feed hopper 300, and then move along the first end of the guide bucket 3 toward the second end of the guide bucket 3, and finally leave from the second end of the guide bucket 3 and fall into the mixing bin. Multiple groups of liquid guiding rod groups are arranged on the guide bottom plate 31 in sequence along the direction from the first end of the guide bucket 3 to the second end of the guide bucket 3. Each group of liquid guiding rod groups includes multiple spaced liquid guiding rods 4. The first end of the liquid guiding rod 4 protrudes from the upper surface of the guide bottom plate 31. The first end of the liquid guiding rod 4 can be arranged vertically upward or obliquely upward. The liquid guiding rod 4 is preferably perpendicular to the guide bottom plate 31. At this time, the first end of the liquid guiding rod 4 is arranged obliquely upward. A wetting agent input device is arranged on the mixing barrel 100 and passes through the mixing barrel 100. The wetting agent input device includes a plurality of wetting agent containers 5 whose number is consistent with the number of the plurality of liquid guiding rod groups and whose positions correspond. A liquid injection port 51 can be arranged on the upper end of the wetting agent container 5 for connecting a liquid injection hose. Each wetting agent container 5 is connected to a telescopic driving mechanism 6. Each wetting agent container 5 includes a plurality of liquid outlets 52 whose number is consistent with the number of the plurality of liquid guiding rods 4 in the corresponding liquid guiding rod group and whose positions correspond. An openable and closable valve is arranged in the liquid outlet 52. The telescopic driving mechanism 6 is used to drive the wetting agent container 5 to move between an open position and a closed position. In the open position, the first end of each liquid guiding rod 4 pushes the openable and closable valve to the open position so that the liquid outlet 52 is opened. In the closed position, the liquid guiding rod 4 is spaced apart from the openable and closable valve, and the openable and closable valve closes the liquid outlet 52.

[0023] Since in the mixing device for CBN grinding wheel production provided by the present invention, the telescopic driving mechanism 6 can first drive the wetting agent container 5 to the open position, at this time the wetting agent flowing out of the liquid outlet 52 can flow along the liquid guiding rod 4 to the guide bottom plate 31, and cover the entire outer peripheral surface of the liquid guiding rod 4, and then the raw material for grinding wheel production, while passing through the guide bucket 3, on the one hand, contacts and mixes with the wetting agent on the guide bottom plate 31, and on the other hand, the raw material for grinding wheel production, while passing through the guide bucket 3, forms a raw material flow on the guide bottom plate 31, and a plurality of liquid guiding rods 4 are dispersedly interspersed in the raw material flow, so that the raw materials at a plurality of different positions in the raw material flow are contacted and mixed with the wetting agent on the outer peripheral surface of the liquid guiding rod 4, thereby increasing the uniformity of the mixing of the raw material and the wetting agent, and avoiding (or at least alleviating) ) The problem of poor mixing effect of grinding wheel abrasive and wetting agent caused by the agglomeration phenomenon formed when the raw material (abrasive) directly contacts with a large amount of wetting agent greatly improves the mixing effect of the raw material and wetting agent in the production of grinding wheels; in addition, since the raw material feeding assembly includes multiple groups of liquid guiding rod groups, and each group of liquid guiding rod groups corresponds to a wetting agent container 5, it is possible to control which wetting agent containers 5 are in the open position and which wetting agent containers 5 are in the closed position according to actual needs. For example, according to the properties of the raw material, flow rate, flow rate and other factors, the number of wetting agent containers 5 in the open position and the position of the wetting agent container 5 in the open position can be adaptively adjusted, thereby adaptively adjusting the amount of wetting agent arranged on the guide bottom plate 31 and the liquid guiding rod 4, and flexibly adapting to more complex raw material and wetting agent mixing needs.

[0024] According to a preferred embodiment of the present application, the liquid guiding rod 4 is rotatably mounted on the guide bottom plate 31, and the wetting agent input device also includes a liquid guiding rod driving mechanism, which is transmission-connected to each liquid guiding rod 4 so as to drive the liquid guiding rod 4 to rotate. On the one hand, during the rotation of the liquid guiding rod 4, the wetting agent flowing along the liquid guiding rod 4 rotates accordingly to more fully contact the surrounding raw materials. On the other hand, during the rotation of the liquid guiding rod 4, the gap between the liquid guiding rod 4 and the surrounding raw materials can be increased, which is conducive to the wetting agent flowing down along the liquid guiding rod 4.

[0025] According to a specific embodiment of the present application, the liquid guiding rod driving mechanism includes a liquid guiding rod driving motor (not shown, specifically can be installed on the inner side of the side tube wall 101 or on the diversion bucket 3), the output shaft of the liquid guiding rod driving motor is connected to a liquid guiding rod driving gear, the second end of each liquid guiding rod 4 protrudes from the lower surface of the diversion bottom plate 31 and is installed with a liquid guiding rod transmission gear 9, the liquid guiding rod driving gear is meshed with one liquid guiding rod transmission gear 9, the liquid guiding rod transmission gears 9 corresponding to the adjacent liquid guiding rods 4 in each group of liquid guiding rods are meshed in sequence, and the liquid guiding rod transmission gear 9 corresponding to one liquid guiding rod 4 in each liquid guiding rod group is meshed with one liquid guiding rod in the adjacent liquid guiding rod group. The liquid guiding rod transmission gear 9 corresponding to the rod 4 is meshed (can be connected through the transition gear 22 (indirect meshing)). In this way, when the liquid guiding rod driving motor rotates, due to the linkage effect, all the liquid guiding rod transmission gears 9 will rotate. Specifically, the liquid guiding rod transmission gear 9 of the last liquid guiding rod in the first group of liquid guiding rods can be meshed with the liquid guiding rod transmission gear 9 of the last liquid guiding rod in the second group of liquid guiding rods. Then, the liquid guiding rod transmission gear 9 of the first liquid guiding rod in the second group of liquid guiding rods can be meshed with the liquid guiding rod transmission gear 9 of the first liquid guiding rod in the third group of liquid guiding rods. And so on, each liquid guiding rod transmission gear 9 forms a meshing route of a curved and circuitous route.

[0026] According to a preferred embodiment of the present invention, the liquid guiding rod 4 includes a rod body 41 and a pin 42 serving as the first end of the liquid guiding rod 4. The pin 42 can better extend into the liquid outlet 52 to lift the openable and closable valve. The connection between the pin 42 and the rod body 41 is preferably smoothly transitioned through an arc surface.

[0027] According to a specific embodiment of the present application, the mixing barrel 100 may include a side barrel wall 101 and a barrel cover 102 arranged on the side barrel wall 101, the raw material feeding assembly and the wetting agent input device are both connected to the barrel cover 102 and penetrate the barrel cover 102, and an oblique through hole 103 extending along the telescopic movement direction of the telescopic drive mechanism 6 (that is, the reciprocating linear movement direction of the wetting agent container 5) is also formed on the barrel cover 102, the wetting agent container 5 penetrates the oblique through hole 103 and is sealingly slidably matched with the peripheral wall of the oblique through hole 103, or the telescopic drive mechanism 6 penetrates the oblique through hole 103 and is sealingly slidably matched with the peripheral wall of the oblique through hole 103.

[0028] According to a preferred embodiment of the present application, the feed hopper 300 has an upper chamber 302, a lower chamber 303 and a laterally extending cylindrical chamber 304, the upper end of the cylindrical chamber 304 is connected to the upper chamber 302, the upper chamber 302 extends to the raw material inlet 301, the lower end of the cylindrical chamber 304 is connected to the lower chamber 303, the lower chamber 303 extends to the raw material outlet 305, the width of the upper chamber 302 is smaller than the diameter of the cylindrical chamber 304, the width of the lower chamber 303 is smaller than the diameter of the cylindrical chamber 304, and the raw material inlet 301 is connected to the lower chamber 303. The material feeding assembly also includes a guide column driving mechanism 12 (for example, a backflow column driving motor) and a guide column 10 rotatably arranged in the cylindrical cavity 304. The guide column 10 has an inclined annular groove 11 extending from one end to the other end formed on its circumferential surface. The guide column 10 is in sealing contact with the cavity wall of the cylindrical cavity 304. The axis of the guide column 10 is consistent with the axis of the cylindrical cavity 304. The guide column driving mechanism 12 is connected to one end of the guide column 10 to drive the guide column 10 to rotate around its axis in the cylindrical cavity 304. The guide column 10 rotates in the cylindrical cavity 304. Since there is an inclined annular groove 11 on the circumferential surface of the guide column 10, after the raw material enters the upper cavity 302 from the feed hopper 300, it needs to enter the cylindrical cavity 304 along the inclined annular groove 11 and leave the cylindrical cavity 304 to arrive at the lower cavity 303. The raw material finally leaves the inclined annular groove 11 from the position where the inclined annular groove 11 is aligned with the lower cavity 303 and falls into the lower cavity 303. However, during the rotation of the guide column 10, the position where the inclined annular groove 11 is aligned with the lower cavity 303 will change reciprocatingly along the axial direction of the guide column 10. In this way, the position where the raw material leaves the inclined annular groove 11 will also change reciprocatingly along the axial direction of the guide column 10. On the one hand, it is beneficial to the dispersion of the raw material and improves the subsequent sufficient contact and mixing effect of the raw material and the wetting agent. On the other hand, it is beneficial for the raw material to arrive at the first end of the guide bucket 3 in a thinner and more uniform manner, avoiding the situation where a large amount of raw material covers the first end of the guide bucket 3 at once, so that it can better contact and mix with the wetting agent on the guide bottom plate 31 and the liquid guiding rod 4.

[0029] According to a specific embodiment of the present application, the wetting agent container 5 includes a container body 56 and a liquid guide tube 53 arranged at the lower end of the container body 56, the upper end of the liquid guide tube 53 is connected to the container body 56, and the lower end of the liquid guide tube 53 forms a liquid outlet 52. The openable and closable valve specifically includes an elastic member 7 (such as a spring) and a blocking ball 8 connected to the elastic member 7. The liquid outlet 52 at the lower end of the liquid guide tube 53 forms an annular inner convex wall 54, and the inside of the liquid guide tube 53 is connected to a perforated plate or a blocking rod 55. The end of the elastic member 7 away from the blocking ball 8 is also connected to the perforated plate or the blocking rod 55. The blocking rod 55 and the blocking ball 8 are pressed against the annular inner convex wall 54 under the action of the elastic force of the elastic member 7 and their own weight to close the liquid outlet 52. The first end of the liquid guiding rod 4 can press the blocking ball 8 to make it overcome the elastic force of the elastic member 7 and leave the annular inner convex wall 54, thereby opening the liquid outlet 52. In addition, the telescopic driving mechanism 6 is a cylinder, the cylinder body of the cylinder is connected to the mixing barrel 100, the piston 502 of the cylinder is connected to the container body 56, and the cylinder body of the cylinder can be specifically connected to the cylinder support frame 13, and the cylinder support frame 13 is connected to the barrel cover 102.

[0030] According to one embodiment of the present application, the mixing hopper 200 includes a turntable 201 and a side ring wall 202 arranged around the upper edge of the turntable 201, the upper end of the side ring wall 202 is adjacent to the barrel cover 102, and there is a certain gap between the outer side of the side ring wall 202 and the inner wall of the mixing barrel 100, and the guide bucket 3 is located below the upper end surface of the side ring wall 202. The mixing equipment for CBN grinding wheel production also includes a binder input device, which includes a lifting cylinder 400 that can be lifted and passed through the outside of the mixing bin and the mixing barrel 100 and a reciprocating drive mechanism 500 arranged on the mixing barrel 100. The lifting cylinder 400 can specifically pass through the barrel cover 102 and be slidably sealed therewith. The lower port of the lifting cylinder 400 is formed with a release plate 401, and the release plate 401 includes a plurality of release through holes 402. The reciprocating drive mechanism 500 The driving mechanism 500 includes a reciprocating rod 501 extending into the lifting cylinder 400 and a piston 502 connected to the end of the reciprocating rod 501. The piston 502 is sealed with the inner wall of the lifting cylinder 400. The reciprocating driving mechanism 500 can be an electric push rod, which pushes the piston 502 to squeeze the binder in the lifting cylinder 400 so that it can be dispersed and flowed out from the multiple release holes 402 on the release plate 401, so as to better mix with the raw materials mixed with the wetting agent in the mixing hopper 200. The lifting cylinder 400 can form a binder inlet on the side wall between the piston 502 and the release plate 401. The binder inlet can be connected to a hose or a guide tube 17 that slides with the cylinder cover 102 in the vertical direction, so as to input the binder into the space between the piston 502 and the release plate 401 of the lifting cylinder 400.

[0031] A guide rail 14 extending in the vertical direction can be connected to the cylinder cover 102. The outer side of the lifting cylinder 400 cooperates with the guide rail 14 through a guide block 15 to limit the lifting movement of the lifting cylinder 400 and ensure the stability and reliability of the lifting movement of the lifting cylinder 400. The guide rail 14 and the guide block 15 cooperate to jointly limit the rotation of the lifting cylinder 400. In order to ensure balanced force, guide blocks 15 are provided on both symmetrical sides of the lifting cylinder 400. Guide rails 14 are provided on the cylinder cover 102 on both sides of the guide blocks 15 corresponding to the lifting cylinder 400. The guide blocks 15 can also be replaced by guide wheels.

[0032] According to the preferred embodiment of the present application, an inclined guide annular groove 203 extending from one axial end of the side annular wall 202 to the other end is formed on the inner wall surface of the side annular wall 202, and a guide rod 16 is connected to the outer side of the lifting cylinder 400, and the end of the guide rod 16 is located in the inclined guide annular groove 203. When the mixing hopper 200 rotates, the position of the inclined guide annular groove 203 on the side annular wall 202 and the guide rod 16 changes back and forth in the vertical direction, so that the lifting cylinder 400 can be driven to perform reciprocating lifting and lowering movements, so that the lifting cylinder 400 can flow out the binder through the release plate 401 at different heights in real time, thereby increasing the uniformity of the combination of the raw material and the binder. The outer side of the lifting cylinder 400 can also be connected to a stirring arm, which moves up and down accordingly, and when the mixing hopper 200 rotates and drives the raw material to rotate, it can also form a relative rotation stirring movement with the raw material, thereby further improving the mixing effect of the raw material and the binder.

[0033] As another embodiment, the lifting cylinder 400 may also be driven by an additional lifting driving device.

[0034] In addition, the turntable 201 is formed into a conical disk which gradually sinks toward the axial direction thereof, and a discharge port 203 is arranged at the center of the turntable 201. The mixing device for producing grinding wheels further comprises a discharge pipe 18, and the port discharge port 203 at one end of the discharge pipe 18 is butted, and a discharge valve (not shown) is installed at one end of the discharge pipe 18, preferably an electric control valve, and the discharge valve is used to open or close the port at one end of the discharge pipe 18, and the other end of the discharge pipe 18 extends out of the mixing barrel 100 and has a discharge port, and a ring gear 19 ( For example, the outer ring teeth, the teeth are on the outside of the annular foundation), the mixing hopper driving device 1 is a mixing hopper driving motor arranged in the mixing barrel 100 and located below the mixing hopper 200, the output shaft of the mixing hopper driving motor is connected to the mixing hopper driving gear 20, the mixing hopper driving gear 20 is engaged with the ring teeth 19, the mixing hopper driving motor can be installed on the side wall of the mixing barrel 100 below the mixing hopper 200, and a plurality of support platforms 21 can also be connected around the mixing barrel 100, and some of the support platforms 21 are used to hide the installation of electronic control equipment and lines.

[0035] According to another aspect of the present invention, a CBN grinding wheel production system is further provided, wherein the CBN grinding wheel production system comprises the above-mentioned mixing device for CBN grinding wheel production.

[0036] It should be noted that the above embodiments only express the preferred implementation of the present application, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the present application. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, such as combining different features in various embodiments, etc., which should all fall within the scope of protection of the present application.

Claims

1. A mixing device for CBN grinding wheel production, characterized in that: The mixing equipment for CBN grinding wheel production comprises: A mixing barrel, a mixing hopper rotatably arranged in the mixing barrel, the mixing hopper and the mixing barrel enclosing a mixing bin; A mixing hopper driving device, the mixing hopper driving device is drivingly connected to the mixing hopper to drive the mixing hopper to rotate; A raw material feeding assembly, comprising a feeding hopper arranged on the mixing barrel, the feeding hopper passes through the mixing barrel, the upper end of the feeding hopper is located outside the mixing barrel and forms a raw material inlet, and the lower end of the feeding hopper forms a raw material outlet, the raw material feeding assembly also comprises a guide hopper and a plurality of groups of liquid guiding rod groups, the first end of the guide hopper is connected to the raw material outlet at the lower end of the feeding hopper, the guide hopper comprises a guide bottom plate, the guide bottom plate is arranged obliquely downward from the first end of the guide hopper toward the second end of the guide hopper, the plurality of groups of liquid guiding rod groups are sequentially arranged on the guide bottom plate along the direction from the first end of the guide hopper toward the second end of the guide hopper, each group of liquid guiding rod groups comprises a plurality of liquid guiding rods arranged at intervals, and the first end of the liquid guiding rod protrudes from the upper surface of the guide bottom plate; A wetting agent input device, the wetting agent input device is arranged on the mixing barrel and passes through the mixing barrel, the wetting agent input device includes a plurality of wetting agent containers whose number is consistent with the plurality of liquid guiding rod groups and whose positions correspond, each of the wetting agent containers is connected to a telescopic driving mechanism, each of the wetting agent containers includes a plurality of liquid outlets whose number is consistent with the plurality of liquid guiding rods in the corresponding liquid guiding rod group and whose positions correspond, an openable and closable valve is arranged in the liquid outlet, the telescopic driving mechanism is used to drive the wetting agent container to move between an open position and a closed position, in the open position, the first end of each of the liquid guiding rods pushes the openable and closable valve to the open position to open the liquid outlet; in the closed position, the liquid guiding rod is spaced from the openable and closable valve, and the openable and closable valve closes the liquid outlet.

2. The mixing device for CBN grinding wheel production according to claim 1, characterized in that: The liquid guiding rod is rotatably mounted on the guide bottom plate, and the wetting agent input device further comprises a liquid guiding rod driving mechanism, which is transmission-connected to each of the liquid guiding rods so as to drive the liquid guiding rods to rotate.

3. The mixing device for CBN grinding wheel production according to claim 2, characterized in that: The liquid guiding rod driving mechanism includes a liquid guiding rod driving motor, and a liquid guiding rod driving gear is connected to the output shaft of the liquid guiding rod driving motor. The second end of each liquid guiding rod protrudes from the lower surface of the guide base plate and is installed with a liquid guiding rod transmission gear. The liquid guiding rod driving gear is meshed with a liquid guiding rod transmission gear, and the liquid guiding rod transmission gears corresponding to adjacent liquid guiding rods in each group of liquid guiding rods are meshed in sequence, and the liquid guiding rod transmission gear corresponding to one liquid guiding rod in each liquid guiding rod group is meshed with the liquid guiding rod transmission gear corresponding to one liquid guiding rod in the adjacent liquid guiding rod group.

4. The mixing device for CBN grinding wheel production according to claim 2, characterized in that: The liquid-conducting rod comprises a rod body and a thimble as a first end portion of the liquid-conducting rod.

5. The mixing device for CBN grinding wheel production according to claim 1, characterized in that: The feed hopper is provided with an upper chamber, a lower chamber and a laterally extending cylindrical chamber, the upper end of the cylindrical chamber is connected to the upper chamber, the upper chamber extends to the raw material inlet, the lower end of the cylindrical chamber is connected to the lower chamber, the lower chamber extends to the raw material outlet, the width of the upper chamber is smaller than the diameter of the cylindrical chamber, the width of the lower chamber is smaller than the diameter of the cylindrical chamber, the raw material feeding assembly also includes a guide column driving mechanism and a guide column rotatably arranged in the cylindrical chamber, an inclined annular groove extending from one end to the other end is formed on the circumferential surface of the guide column, the guide column is in sealing contact with the cavity wall of the cylindrical chamber, the axis of the guide column is consistent with the axis of the cylindrical chamber, and the guide column driving mechanism is transmission-connected to one end of the guide column to drive the guide column to rotate around its axis in the cylindrical chamber.

6. The mixing device for CBN grinding wheel production according to claim 1, characterized in that: The wetting agent container includes a container body and a liquid guide tube arranged at the lower end of the container body, the upper end of the liquid guide tube is connected to the container body, the lower end of the liquid guide tube forms the liquid outlet, the telescopic driving mechanism is a cylinder, the cylinder body of the cylinder is connected to the mixing barrel, and the piston rod of the cylinder is connected to the container body.

7. The mixing device for CBN grinding wheel production according to claim 1, characterized in that: The mixing hopper includes a turntable and a side ring wall arranged around the upper edge of the turntable, the guide hopper is located below the upper end surface of the side ring wall, and the mixing equipment for CBN grinding wheel production also includes a binder input device, the binder input device includes a lifting cylinder that can be lifted and lowered through the mixing bin and the outside of the mixing barrel and a reciprocating drive mechanism arranged on the mixing barrel, a release plate is formed at the lower port of the lifting cylinder, and the release plate includes a plurality of release through holes, the reciprocating drive mechanism includes a reciprocating rod extending into the lifting cylinder and a piston connected to the end of the reciprocating rod, and the piston is sealed with the inner wall of the lifting cylinder.

8. The mixing device for CBN grinding wheel production according to claim 7, characterized in that: An inclined guide ring groove extending from one axial end to the other end of the side ring wall is formed on the inner wall surface of the side ring wall. A guide rod is connected to the outer side of the lifting cylinder, and the end of the guide rod is located in the inclined guide ring groove.

9. The mixing device for CBN grinding wheel production according to claim 7, characterized in that: The turntable forms a conical disk which gradually sinks axially therein, and a discharge port is arranged at the center of the turntable. The mixing equipment for producing the grinding wheel also includes a discharge pipe, and the port at one end of the discharge pipe is connected to the discharge port, and a discharge valve is installed at one end of the discharge pipe, and the discharge valve is used to open or close the port at one end of the discharge pipe, and the other end of the discharge pipe extends out of the mixing barrel and has a discharge port. A ring gear is installed at the lower end of the conical disk, and the mixing hopper driving device is a mixing hopper driving motor arranged in the mixing barrel and located below the mixing hopper, and the output shaft of the mixing hopper driving motor is connected to a mixing hopper driving gear, and the mixing hopper driving gear is meshed with the ring gear.

10. A CBN grinding wheel production system, characterized in that: The CBN grinding wheel production system comprises a mixing device for CBN grinding wheel production according to any one of claims 1 to 9.

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