Precoated sand crushing and screening equipment

Abstract

The invention provides precoated sand crushing and screening equipment, belongs to the technical field of crushing and screening, and solves the problem of incomplete crushing of existing raw materials. The precoated sand crushing and screening equipment comprises a support, a crushing mechanism, a rotating mechanism, a feeding mechanism, a raw material storage bin, a collecting box, a screening charging barrel assembly and a feeding hopper assembly. The crushing mechanism and the rotating mechanism are fixed on the base; the middle part of the rotating mechanism rotationally sleeves the outer side of the crushing mechanism; the number of the screening material barrel assemblies is two, the screening material barrel assemblies are arranged on the two sides of the rotating mechanism correspondingly, and the feeding hopper assembly is installed on one screening material barrel assembly. The discharging end of the raw material storage bin is connected with the feeding end of the feeding mechanism, and the discharging end of the feeding mechanism is located above the rotating mechanism and corresponds to the feeding hopper assembly; and the collecting box is fixed on the base. Materials can be machined for multiple times, the machining precision is improved, and raw material waste is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of crushing and screening, and relates to a crushing and screening device, in particular to a coated sand crushing and screening device. Background Art

[0002] When processing coated sand, it is necessary to use natural quartz sand, thermoplastic phenolic resin, hexamethylenetetramine and reinforcing agent as raw materials, so that the surface of the sand particles is covered with a layer of solid resin film before molding, and then the coated sand is obtained through molding, cooling, crushing and screening.

[0003] During the crushing process of coated sand, the particle size of the coated sand raw sand needs to meet the processing requirements. Due to the high strength of the coated sand, the existing coated sand crushing and screening equipment has a poor crushing effect when crushing the coated sand. The current existing equipment can only crush the material once during the crushing process and then screen it. There are many unqualified materials, which leads to low production efficiency and a large waste of raw materials. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a coated sand crushing and screening device.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A coated sand crushing and screening device comprises a bracket, a crushing mechanism, a rotating mechanism, a feeding mechanism, a raw material storage bin, a collecting box, a screening barrel assembly and a feeding hopper assembly; The bracket includes a base, a side support frame and a top support plate, the bottom of the side support frame is fixed on the base, and the top support plate is fixed on the top of the side support frame; The crushing mechanism is fixed on the base, the rotating mechanism is fixed on the base, the middle part of the rotating mechanism is rotatably sleeved on the outer side of the crushing mechanism, and the rotating mechanism and the crushing mechanism are correspondingly provided with through holes for materials to pass through to form a channel for materials to pass through; The screening barrel assemblies are provided with two, and are respectively arranged on both sides of the rotating mechanism and located on the same straight line, and a feed hopper assembly is installed on one of the screening barrel assemblies; The feeding mechanism is fixed on the side support frame, the raw material storage bin is fixed on the top support plate, the discharge end of the raw material storage bin is connected to the feeding end of the feeding mechanism, and the discharge end of the feeding mechanism is located above the rotating mechanism and corresponds to the feeding hopper assembly; The collecting box is fixed on the base and is located below the rotating mechanism.

[0006] The working principle of the present invention is as follows: the middle part of the rotating mechanism is rotatably sleeved on the outside of the crushing mechanism, and the rotating mechanism drives the two screening barrel assemblies to rotate; during the rotation of the rotating mechanism, the rotating mechanism controls the materials in the raw material storage bin to fall into the feeding mechanism, and controls the materials in the feeding mechanism to fall into the feeding hopper assembly first, so as to complete the process in which the materials finally fall into the screening barrel assembly. During the rotation process, the materials in the screening barrel assembly located at the top enter the crushing mechanism and are crushed, and the crushed materials fall into the screening barrel assembly located at the bottom, and the qualified materials after crushing leak out from the screening barrel assembly located at the bottom and fall into the collection box.

[0007] With the above structure, the support structure is stable and can stably support the stable operation of the equipment. The middle rotating sleeve of the rotating mechanism is arranged on the outside of the crushing mechanism. When the rotating mechanism rotates to the predetermined position, the material in the screening barrel assembly located above can pass through the crushing mechanism to realize the crushing of the material, and the crushed material can fall into the screening barrel assembly located below. In the process of the rotating mechanism driving the two screening barrel assemblies to rotate, multiple crushing processes of the material are realized to improve the crushing accuracy, that is, the material that is unqualified in one processing can be repeatedly passed through the crushing mechanism for secondary and multiple crushing to meet the predetermined material requirements, and the qualified material after crushing can smoothly fall into the collection box for centralized collection. The reciprocating processing of the material improves the utilization rate of the material, avoids the situation of removing the unqualified material after one processing, and saves materials. The multiple processing of this equipment improves the processing accuracy. In the process of multiple crushing, the waste rate is very low.

[0008] The crushing mechanism comprises a support plate 1, a fixing member and a crushing tooth group, one end of the fixing member is fixed on the support plate 1, and the support plate 1 is fixed on the base; The fixing member is cylindrical, a material passing channel for materials to pass through is opened in the middle of the fixing member, the crushing tooth group is rotatably arranged inside the material passing channel, and a power mechanism for driving the crushing tooth group to rotate is arranged inside the fixing member; The rotating mechanism comprises a rotating cylinder, which is rotatably sleeved on the outer circumference of the fixing member, and the outer circumference of the fixing member is in contact with the inner circumference of the rotating cylinder, and two plug interfaces are correspondingly provided on the rotating cylinder; The material passing channel and the two plug ports are located in the same vertical direction to form a channel for the material to pass through; One end of the screening barrel assembly is inserted into the insertion port and fixed to the rotating barrel.

[0009] With the above structure, the fixing part is cylindrical to ensure that the rotating drum rotates more smoothly around it, and the outer circumferential surface of the fixing part fits with the inner circumferential surface of the rotating drum to avoid leakage of materials and has good sealing performance; the feeding channel can be installed with a crushing tooth group and can also ensure the passage of materials; at the same time, during the rotation of the rotating drum, when the bottom of the feeding channel is blocked by the rotating drum, the feeding channel also has a mobile storage function, until the rotating drum rotates to the feeding channel and the screening barrel assembly is connected (that is, the feeding channel and the two plug interfaces are located in the same vertical direction to form a channel for the material to pass through), the material can fall into the corresponding screening barrel assembly.

[0010] The rotating mechanism comprises a second supporting plate, a rotating plate and a connecting plate, wherein the second supporting plate is fixed on the base and parallel to the first supporting plate; The rotating plate is rotatably arranged on the second supporting plate, and the second supporting plate is provided with a power mechanism for driving the rotating plate to rotate; One end of the connecting plate is fixed to the rotating plate, and the other end of the connecting plate is connected to the screening barrel assembly.

[0011] With the above structure, the second support plate has a good supporting effect on the rotating mechanism; the power mechanism drives the rotating plate to rotate, and the rotating plate then drives the screening barrel assembly to rotate through the connecting plate, and the screening barrel assembly further drives the rotating barrel to rotate. The end of the rotating barrel is fixed on the connecting plate, and the connecting plate drives the rotating barrel to rotate, and the rotation of the rotating barrel is more stable. The rotating plate is rotatably arranged on the second support plate and driven by the power mechanism, thereby improving the supporting force of the second support plate on the rotating plate and improving the stability of the rotation of the rotating plate.

[0012] The rotating plate is provided with a fixing ring, and a support rod is provided on the circumference of the fixing ring; The feeding mechanism comprises a discharge cylinder, a material transfer assembly and a linkage rod, a cavity is provided inside the discharge cylinder, and the material transfer assembly is arranged in the cavity; One end of the discharging barrel is fixed to the side support frame, a strip hole is opened on the side of the discharging barrel, one end of the linkage rod passes through the strip hole and is fixed to the moving component, and the other end of the linkage rod abuts against the support rod to form a linkage mechanism. A feed port is provided on the upper surface of one end of the discharging barrel close to the side support frame, and a discharging port is provided on the lower surface of one end of the discharging barrel away from the side support frame.

[0013] A discharge pipe is arranged at the bottom of the raw material storage bin, and the discharge pipe is connected to the feed port.

[0014] With the above structure, a support rod is arranged on the fixed circumferential surface, and one end of the linkage rod abuts against the support rod to form a linkage mechanism; the linkage rod moves along the track (horizontally) of the strip hole, and the strip hole has a good limiting effect; the movement of the linkage rod drives the material shifting assembly to move, thereby completing the feeding process of the feeding mechanism. A discharge pipe is arranged at the bottom of the raw material storage bin to input the material into the feeding mechanism through the feed port, and the material falls into the feed hopper assembly from the discharge port under the action of the material shifting assembly, thereby completing the control of material feeding.

[0015] The material moving assembly includes a slider 1, a slider 2, a slide plate and a spring 1. The slider 1 and the slider 2 are respectively arranged at two ends of the slide plate. The slider 1, the slider 2 and the slide plate are all slidably arranged in the inner cavity of the discharge barrel. The circumferential surfaces of the slider 1 and the slider 2 are in contact with the inner cavity wall of the discharge barrel, and the slide plates press the inner cavity of the discharge barrel and cover the strip-shaped hole to form a sealing structure; A movable material storage cavity is formed between the slider 1 and the slider 2; One end of the spring one is fixed to the side support frame, and the other end of the spring one is connected to the slider one.

[0016] By adopting the above structure, the automatic feeding process can be completed during the rotation of the rotating mechanism, and the capacity of the storage chamber can be adjusted by adjusting the width of slider one and slider two, so as to control the amount of material entering the hopper assembly each time, so as to further improve the accuracy of crushing, avoid the problem of too much or too little material causing waste of energy and affecting the processing quality, and realize the mutual coordination of the rotation process and the feeding process, which greatly improves the crushing efficiency of the material and improves the processing quality.

[0017] An arc groove is arranged at the discharge port position at the bottom of the discharge barrel, the feed hopper assembly is fan-shaped, and the upper peripheral surface of the feed hopper assembly corresponds to the arc groove, so that the material passes through the discharge port and enters the feed hopper assembly.

[0018] With the above structure, the upper circumference of the feed hopper assembly corresponds to the arc groove, and the upper circumference of the feed hopper assembly butts with the arc groove to form a sealing structure, thereby preventing material leakage and improving the accuracy of material transmission.

[0019] The screening barrel assembly comprises a screening barrel and a screening net, wherein the screening net is arranged inside the screening barrel; The screening barrel is provided with a first material port at one end and a second material port at the other end, and the second material port ends of the screening barrel are inserted into the insertion port in cooperation; A material port three is provided on the inner wall of the screening barrel, and a discharge end at the bottom of the feed hopper assembly is correspondingly connected to the material port three, and the material port three is located on the side of the screening net facing the material port two.

[0020] With the above structure, during the rotation of the rotating mechanism, materials continuously enter the screening barrel assembly for processing. At the same time, some materials are processed twice, three times, or multiple times. Therefore, it is necessary to adjust the size of the storage chamber according to the actual situation to ensure the processing quality of the materials. The material port three is located on the side of the screening net facing the material port two to prevent the unprocessed and crushed materials from leaking out of the screening barrel. The screening net has a good blocking effect.

[0021] The surface of the screening net is in a broken line shape or a curved surface shape.

[0022] By adopting the above structure, the surface area of ​​the screening net is increased to increase the screening area and improve the screening effect.

[0023] The feed hopper assembly includes a hopper, a limiting feed plate and a second spring, the discharge end at the bottom of the hopper is correspondingly connected to the feed port three, and the bottom of the hopper is set as a slope surface; The limiting feed plate is located at the opening position of the discharge end at the bottom of the hopper, the upper end of the limiting feed plate is rotatably connected to the inner wall of the hopper, and the lower end of the limiting feed plate extends into the screening barrel and covers the feed port three. One end of the second spring is connected to the inner wall of the slope surface, and the other end of the second spring is connected to the middle part of the limiting feed plate.

[0024] With the above structure, when the material falls into the hopper, under the action of gravity, the spring 2 stretches, the limit feed plate opens, and the material enters the screening barrel from the material port 3. When the material in the hopper gradually decreases, the spring 2 pulls the limit feed plate to rotate so that the material port 3 is closed; at the same time, under the pulling action of the spring 2, the material is prevented from leaking out of the material port 3, forming a good sealing effect. The bottom of the hopper is set as a slope surface, which is conducive to the material entering the material port 3.

[0025] The collecting box comprises a box body and a partition, and the box body opens upward; The partition is located in the middle of the box body to divide the box body into a finished product collection bin and a raw material collection bin. The finished product collection bin is located below the screening barrel assembly, and the raw material collection bin is located below the feed hopper assembly.

[0026] With the above structure, the finished product collection bin is used to collect qualified materials that pass through the screening net after crushing; the raw material collection bin is used to collect residual materials inside the hopper. The collection box avoids the mixing of different materials and facilitates the collection of materials.

[0027] Compared with the existing technology, this coated sand crushing and screening equipment has the following advantages: 1. The middle rotating sleeve of the rotating mechanism is arranged on the outside of the crushing mechanism, and the rotating mechanism drives the two screening barrel assemblies to rotate; during the rotation of the rotating mechanism, a discharge pipe is arranged at the bottom of the material storage bin to input the material into the feeding mechanism through the feeding port, and the capacity of the storage cavity is adjusted by adjusting the width of the slider 1 and the slider 2, so as to control the amount of material entering the hopper assembly each time, so as to further improve the accuracy of crushing, avoid the problem of wasting energy and affecting the processing quality due to too much or too little material; during the rotation of the rotating mechanism, materials are continuously entering the screening barrel assembly for processing, and at the same time, some materials are processed twice, three times and multiple times; when the materials fall into the hopper, under the action of gravity, the spring 2 stretches, the limit feed plate opens, and the materials enter the screening barrel from the material port 3, and the upper peripheral surface of the feed hopper assembly docks with the arc groove to form a sealing structure to avoid leakage of materials and improve the accuracy of material transmission. Among them, the finished product collection bin is used to collect qualified materials that pass through the screening net after crushing; the raw material collection bin is used to collect residual materials inside the hopper to avoid mixing of different materials and facilitate the collection of materials.

[0028] 2. The support structure is stable and can smoothly support the stable operation of the equipment. The middle rotating sleeve of the rotating mechanism is arranged on the outside of the crushing mechanism. When the rotating mechanism rotates to the predetermined position, the material in the upper screening barrel assembly can pass through the crushing mechanism to realize the crushing of the material, and the crushed material can fall into the screening barrel assembly located below. In the process of the rotating mechanism driving the two screening barrel assemblies to rotate, multiple crushing processes of the material are realized to improve the crushing accuracy, that is, the material that fails to meet the requirements of the material can be repeatedly passed through the crushing mechanism for secondary and multiple crushing to meet the predetermined material requirements. After crushing, the qualified material can smoothly fall into the collection box for centralized collection. The reciprocating processing of the material improves the utilization rate of the material, avoids the situation of removing the unqualified material after the first processing, and saves the material. The multiple processing of this equipment improves the processing accuracy. At the same time, the waste rate is very low during the multiple crushing process.

[0029] 3. The fixing part is cylindrical to ensure that the rotating drum rotates more smoothly around it. At the same time, the outer circumference of the fixing part fits the inner circumference of the rotating drum to avoid leakage of materials and has good sealing performance; the feeding channel can be installed with a crushing tooth group to ensure the passage of materials; at the same time, during the rotation of the rotating drum, when the bottom of the feeding channel is blocked by the rotating drum, the feeding channel also has a mobile storage function until the rotating drum rotates to the feeding channel and connects with the screening barrel assembly, and the material can fall into the corresponding screening barrel assembly; the supporting plate has a good supporting effect on the rotating mechanism; the power mechanism drives the rotating plate to rotate, and the rotating plate then drives the screening barrel assembly to rotate through the connecting plate, and the screening barrel assembly further drives the rotating drum to rotate.

[0030] 4. The linkage rod moves along the track (horizontally) of the strip hole, and the strip hole has a good limiting effect; the linkage rod moves to drive the material transfer assembly to move, thereby completing the feeding process of the feeding mechanism. A discharge pipe is set at the bottom of the raw material storage bin to input the material into the feeding mechanism through the feed port. The material falls into the feed hopper assembly from the discharge port under the action of the material transfer assembly, thereby completing the control of material feeding; under the rotation of the rotating mechanism, the automatic feeding process can be completed, and under the rotation of the rotating mechanism, the rotation process and the feeding process can be coordinated with each other, which greatly improves the material crushing efficiency and processing quality.

[0031] 5. The material port three is located on the side of the screening net facing the material port two to prevent the unprocessed and crushed materials from leaking out of the screening barrel. The screening net has a good blocking effect; the surface area of ​​the screening net is increased to increase the screening area and improve the screening effect; the bottom of the hopper is set as a slope surface to facilitate the material to enter the material port three; the collection box avoids the mixing of different materials and facilitates the collection of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the present invention.

[0033] Figure 2 It is a three-dimensional structural schematic diagram of the back side of the present invention.

[0034] Figure 3 It is an exploded view of the cooperation between the crushing mechanism and the rotating mechanism in the present invention.

[0035] Figure 4 It is a front view of the present invention.

[0036] Figure 5 It is a schematic diagram of the connection structure between the screening barrel assembly and the rotating barrel in the present invention.

[0037] Figure 6 It is a schematic diagram of the connection structure between the screening barrel and the hopper in the present invention.

[0038] Figure 7 It is a schematic structural diagram of the feeding mechanism in one state of the present invention.

[0039] Figure 8 It is a structural schematic diagram of the feeding mechanism in another state of the present invention.

[0040] Fig. 9 It is a structural schematic diagram of the material moving component in the present invention.

[0041] In the figure, 1, bracket; 11, base; 12, side support plate; 13, top support plate; 2, crushing mechanism; 21, support plate 1; 22, fixing member; 22a, material passage; 23, crushing tooth group; 3, rotating mechanism; 31, support plate 2; 32, power mechanism; 33, rotating plate; 34, fixing ring; 35, connecting plate; 36, support rod; 37, rotating cylinder; 37a, plug interface; 4, feeding mechanism; 41, discharging cylinder; 41a, strip hole; 41b, arc groove; 41c, feeding port; 41d, discharging port ; 41e, mobile storage chamber; 42, slider one; 43, slider two; 44, slide plate; 45, linkage rod; 46, spring one; 5, raw material storage bin; 51, discharge pipe; 6, collection box; 61, box body; 62, partition; 6a, finished product collection bin; 6b, raw material collection bin; 7, screening barrel assembly; 71, screening barrel; 71a, feed port one; 71b, feed port two; 71c, feed port three; 72, screening net; 8, feed hopper assembly; 81, hopper; 81a, slope surface; 82, limit feed plate; 83, spring two. DETAILED DESCRIPTION

[0042] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0043] like Figure 1-Figure 9 As shown, this embodiment provides a coated sand crushing and screening device, including a bracket 1, a crushing mechanism 2, a rotating mechanism 3, a feeding mechanism 4, a raw material storage bin 5, a collecting box 6, a screening barrel assembly 7 and a feeding hopper assembly 8; The bracket 1 includes a base 11, a side support frame 12 and a top support plate 13, the bottom of the side support frame 12 is fixed on the base 11, and the top support plate 13 is fixed on the top of the side support frame 12; The crushing mechanism 2 is fixed on the base 11, the rotating mechanism 3 is fixed on the base 11, the middle part of the rotating mechanism 3 is rotatably sleeved on the outer side of the crushing mechanism 2, and the rotating mechanism 3 and the crushing mechanism 2 are correspondingly provided with through holes for materials to pass through to form a channel for materials to pass through; There are two screening barrel assemblies 7, which are respectively arranged on both sides of the rotating mechanism 3 and located on the same straight line, and a feed hopper assembly 8 is installed on one of the screening barrel assemblies 7; The feeding mechanism 4 is fixed on the side support frame 12, the raw material storage bin 5 is fixed on the top support plate 13, the discharge end of the raw material storage bin 5 is connected to the feed end of the feeding mechanism 4, and the discharge end of the feeding mechanism 4 is located above the rotating mechanism 3 and corresponds to the feeding hopper assembly 8; The collecting box 6 is fixed on the base 11 and is located below the rotating mechanism 3 .

[0044] The working principle of the present invention is as follows: the middle part of the rotating mechanism 3 is rotatably sleeved on the outside of the crushing mechanism 2, and the rotating mechanism 3 drives the two screening barrel assemblies 7 to rotate; During the rotation of the rotating mechanism 3 , the rotating mechanism 3 controls the material in the raw material storage bin 5 to fall into the feeding mechanism 4 , and controls the material in the feeding mechanism 4 to first fall into the feeding hopper assembly 8 , so as to complete the process in which the material finally falls into the screening barrel assembly 7 .

[0045] At the same time, during the rotation process, the material in the screening barrel assembly 7 located above enters the grinding mechanism 2 and is ground, and the ground material falls into the screening barrel assembly 7 located below. The qualified material after grinding (after screening) leaks out from the screening barrel assembly 7 located below and falls into the collecting box 6.

[0046] In the present invention, the support 1 has a stable structure and can stably support the stable operation of the equipment. The middle part of the rotating mechanism 3 is rotatably sleeved on the outside of the crushing mechanism 2. When the rotating mechanism 3 rotates to a predetermined position, the material in the screening barrel assembly 7 located above can pass through the crushing mechanism 2 to achieve crushing of the material, and the crushed material can fall into the screening barrel assembly 7 located below.

[0047] In the present invention, during the process of the rotating mechanism 3 driving the two screening barrel assemblies 7 to rotate, multiple crushing processes of the material are realized to improve the crushing accuracy, that is, the material that fails the first processing can be repeatedly passed through the crushing mechanism 2 for secondary and multiple crushing to meet the predetermined material requirements, and the qualified material after crushing can smoothly fall into the collection box 6 for centralized collection.

[0048] In the present invention, the reciprocating processing of materials improves the utilization rate of materials, avoids the situation of removing unqualified materials after one processing, and saves materials. The multiple processing of the equipment improves the processing accuracy. At the same time, the waste rate is very low during the multiple crushing process.

[0049] The crushing mechanism 2 includes a support plate 21, a fixing member 22 and a crushing tooth group 23, one end of the fixing member 22 is fixed on the support plate 21, and the support plate 21 is fixed on the base 11; The fixing member 22 is cylindrical, and a material passing channel 22a is provided in the middle of the fixing member 22 for materials to pass through. The crushing tooth group 23 is rotatably arranged inside the material passing channel 22a, and a power mechanism for driving the crushing tooth group 23 to rotate is provided inside the fixing member 22; The rotating mechanism 3 includes a rotating cylinder 37, which is rotatably sleeved on the outer periphery of the fixing member 22, and the outer periphery of the fixing member 22 is in contact with the inner periphery of the rotating cylinder 37, and two plug-in ports 37a are correspondingly provided on the rotating cylinder 37; The material passage 22a and the two insertion ports 37a are located in the same vertical direction to form a passage for materials to pass through; One end of the screening barrel assembly 7 is inserted into the insertion port 37 a and fixed to the rotating barrel 37 .

[0050] In the present invention, the fixing member 22 is cylindrical to ensure that the rotating cylinder 37 rotates more smoothly around it. At the same time, the outer circumference of the fixing member 22 fits the inner circumference of the rotating cylinder 37 to prevent leakage of materials and has good sealing performance. In the present invention, the feed passage 22a can be installed with the crushing tooth group 23 and can also ensure the passage of materials; at the same time, during the rotation of the rotating cylinder 37, when the bottom of the feed passage 22a is blocked by the rotating cylinder 37, the feed passage 22a also has a mobile storage function, until the rotating cylinder 37 rotates to the feed passage 22a and the screening barrel assembly 7 (that is, the feed passage 22a and the two plug interfaces 37a are located in the same vertical direction to form a channel for the material to pass through), the material can fall into the corresponding screening barrel assembly 7.

[0051] The rotating mechanism 3 includes a second supporting plate 31, a rotating plate 33 and a connecting plate 35. The second supporting plate 31 is fixed on the base 11 and is parallel to the first supporting plate 21. The rotating plate 33 is rotatably arranged on the second supporting plate 31, and the second supporting plate 31 is provided with a power mechanism 32 for driving the rotating plate 33 to rotate; One end of the connecting plate 35 is fixed to the rotating plate 33 , and the other end of the connecting plate 35 is connected to the screening barrel assembly 7 .

[0052] In the present invention, the support plate 2 31 has a good supporting effect on the rotating mechanism 3; the power mechanism 32 drives the rotating plate 33 to rotate, and the rotating plate 33 further drives the screening barrel assembly 7 to rotate through the connecting plate 35, and the screening barrel assembly 7 further drives the rotating barrel 37 to rotate.

[0053] Preferably, the end of the rotating cylinder 37 is fixed on the connecting plate 35, and the connecting plate 35 drives the rotating cylinder 37 to rotate, so that the rotation of the rotating cylinder 37 is more stable.

[0054] Preferably, the rotating plate 33 is rotatably disposed on the second supporting plate 31 and driven by the power mechanism 32 to improve the supporting force of the second supporting plate on the rotating plate 33 and improve the rotation stability of the rotating plate 33 .

[0055] A fixing ring 34 is disposed on the rotating plate 33, and a support rod 36 is disposed on the circumference of the fixing ring 34; The feeding mechanism 4 includes a discharge cylinder 41, a material moving assembly and a linkage rod 45. A cavity is provided inside the discharge cylinder 41, and the material moving assembly is arranged in the cavity. One end of the discharge barrel 41 is fixed to the side support frame 12, and a strip hole 41a is opened on the side of the discharge barrel 41. One end of the linkage rod 45 passes through the strip hole 41a and is fixed to the moving component, and the other end of the linkage rod 45 abuts against the support rod 36 to form a linkage mechanism. A feed port 41 c is formed on the upper surface of one end of the discharge cylinder 41 close to the side support frame 12 , and a discharge port 41 d is formed on the lower surface of one end of the discharge cylinder 41 away from the side support frame 12 .

[0056] A discharge pipe 51 is provided at the bottom of the raw material storage bin 5 , and the discharge pipe 51 is connected to the feed port 41 c .

[0057] In the present invention, a support rod 36 is arranged on the circumference of the fixing ring 34, and one end of the linkage rod 45 abuts against the support rod 36 to form a linkage mechanism. The linkage process is as follows: S11: The rotating plate 33 drives the support rod 36 to rotate until the support rod 36 contacts the linkage rod 45; S12: As the support rod 36 continues to move, the linkage rod 45 is driven to move; S13: Since the fixing ring 34 moves in a circular motion, the top of the support rod 36 has an ascending and descending process during the movement of the support rod 36. When the support rod 36 continues to move to the moving position, the top of the support rod 36 is separated from the linkage rod 45, and the linkage rod 45 returns to the initial position.

[0058] In the present invention, the linkage rod 45 moves along the track (laterally) of the strip hole 41 a , and the strip hole 41 a has a good limiting effect; the linkage rod 45 drives the material moving assembly to move during the movement, thereby completing the material feeding process of the feeding mechanism 4 .

[0059] In the present invention, a discharge pipe 51 is provided at the bottom of the raw material storage bin 5 to input the material into the feeding mechanism 4 through the feed port 41c. The material falls into the feed hopper assembly 8 from the discharge port 41d under the action of the material transfer assembly, thereby completing the control of the material feeding.

[0060] The material moving assembly includes a slider 1 42, a slider 2 43, a slide plate 44 and a spring 1 46. The slider 1 42 and the slider 2 43 are respectively arranged at two ends of the slide plate 44. The slider 1 42, the slider 2 43 and the slide plate 44 are all slidably arranged in the inner cavity of the discharge cylinder 41. The circumference of the slider 1 42 and the slider 2 43 fits with the inner wall of the discharge barrel 41, and the slide plate 44 presses the inner cavity of the discharge barrel 41 and covers the strip hole 41a to form a sealing structure; A movable material storage chamber 41e is formed between the slider 1 42 and the slider 2 43; One end of a spring 46 is fixed to the side support frame 12 , and the other end of the spring 46 is connected to a slider 42 .

[0061] In the present invention, the specific feeding process of the material transfer assembly, the support rod 36 and the feed hopper assembly 8 is as follows: S21: In the initial state, the storage cavity 41e between the slider 1 42 and the slider 2 43 is connected to the feed port 41c, and the material inside the raw material storage bin 5 falls into the storage cavity 41e; at this time, the spring 1 46 is in the original length state, the slider 2 43 covers the discharge port 41d, and the discharge port 41d is in a closed state; S22: The rotating mechanism 3 works, and the feed hopper assembly 8 rotates under the drive of the screening barrel assembly 7 until the feed port of the feed hopper assembly 8 completely covers the discharge port 41d, and the support rod 36 just contacts the linkage rod 45; at this time, the slider 43 covers the discharge port 41d, the discharge port 41d is in a closed state, and the storage chamber 41e and the feed port 41c are still in a connected state (such as Figure 7 shown); S23: The support rod 36 drives the linkage rod 45 to move, the discharge port 41d opens, and the storage chamber 41e (under the cooperation of the slider 1 42 and the slider 2 43) moves to be connected with the discharge port 41d, and the material falls from the discharge port 41d and enters the feed hopper assembly 8; at this time, the top of the slider 1 42 blocks the feed port 41c, and the feed port 41c is in a closed state; it should be noted that before the discharge port 41d is opened, the feed port 41c is already completely closed.

[0062] S24: The support rod 36 drives the linkage rod 45 to move until the support rod 36 and the linkage rod 45 are in a critical state of being about to be separated, and the slider 1 42 completely covers the discharge port 41d, that is, it is ensured that all the materials are discharged from the discharge port 41d; at this time, the feed port of the feed hopper assembly 8 still completely covers the discharge port 41d to prevent the material from leaking out and ensure that the material can completely fall into the feed hopper assembly 8; at the same time, the slider 1 42 blocks the feed port 41c, and the feed port 41c is still in a closed state (such as Figure 8 shown); S25: the support rod 36 continues to move, the support rod 36 is separated from the linkage rod 45, and the linkage rod 45 is restored to the initial state of S21 under the stretching action of the spring 1 46, so that the material inside the raw material storage bin 5 falls into the storage cavity 41e.

[0063] Under the driving action of the rotating mechanism 3, the above steps S21-S25 are repeated to complete the above feeding process.

[0064] In the present invention, under the rotation of the rotating mechanism 3, the automatic feeding process can be completed, and the capacity of the storage chamber 41e can be adjusted by adjusting the width of the slider 1 42 and the slider 2 43, so as to control the amount of material entering the hopper assembly 8 each time, so as to further improve the accuracy of crushing and avoid the problem of wasting energy and affecting the processing quality due to too much or too little material.

[0065] In the present invention, under the rotation action of the rotating mechanism 3, the rotation process and the feeding process can be coordinated with each other, which greatly improves the crushing efficiency of the material and improves the processing quality.

[0066] In the present invention, the circumference of slider 1 42 and slider 2 43 fits with the inner wall of the discharge barrel 41 to prevent the material from sliding in the discharge barrel 41 or being discharged uncleanly; the slide plate 44 presses the inner cavity of the discharge barrel 41 and covers the strip hole 41a to form a sealing structure to prevent the material from leaking out.

[0067] An arc groove 41b is provided at the position of the discharge port 41d at the bottom of the discharge barrel 41. The feed hopper assembly 8 is fan-shaped, and the upper circumference of the feed hopper assembly 8 corresponds to the arc groove 41b, so that the material passes through the discharge port 41d and enters the feed hopper assembly 8.

[0068] In the present invention, the upper circumferential surface of the feed hopper assembly 8 corresponds to the arc groove 41b. In the above S21-S25 process, the upper circumferential surface of the feed hopper assembly 8 is docked with the arc groove 41b to form a sealing structure to prevent material leakage and improve the accuracy of material transmission.

[0069] The screening barrel assembly 7 comprises a screening barrel 71 and a screening net 72, wherein the screening net 72 is arranged inside the screening barrel 71; A material port 1 71a is provided at one end of the screening material barrel 71, and a material port 2 71b is provided at the other end of the screening material barrel 71. The end of the material port 2 71b of the screening material barrel 71 is inserted into the insertion port 37a. A material port 3 71 c is formed on the inner wall of the screening barrel 71 , and a discharge end at the bottom of the feed hopper assembly 8 is correspondingly connected to the material port 3 71 c , and the material port 3 71 c is located on the side of the screening net 72 facing the material port 2 71 b .

[0070] In the present invention, the working process of the screening barrel assembly 7 is as follows: S31: the material inside the feed hopper assembly 8 enters the screening barrel 71 (located above the crushing mechanism 2) through the material port 3 71c; S32: the material further enters the material passage 22a and is crushed by the crushing tooth set 23; S33: The crushed material falls into the screening barrel 71 (located above and below the crushing mechanism 2); S34: The crushed material passes through the screening net 72 and falls into the collecting box 6; S35: The material that has not passed through the screening net 72 enters the material passage 22a again through the second material port 71b when the screening barrel 71 moves to the top of the crushing mechanism 2 for secondary processing.

[0071] It should be noted that during the rotation of the rotating mechanism 3, materials continuously enter the screening barrel assembly 7 to be processed. At the same time, some materials are processed twice, three times or multiple times; therefore, it is necessary to adjust the size of the storage chamber 41e according to actual conditions to ensure the processing quality of the materials.

[0072] In the present invention, the third material port 71c is located on the side of the screening net 72 facing the second material port 71b, so as to prevent the unprocessed and crushed materials from leaking out of the screening barrel 71, and the screening net 72 has a good blocking effect.

[0073] The surface of the sieve mesh 72 is in a fold line shape or a curved surface shape.

[0074] In the present invention, the surface area of ​​the screening mesh 72 is increased to increase the screening area and improve the screening effect.

[0075] The feed hopper assembly 8 includes a hopper 81, a limiting feed plate 82 and a second spring 83. The discharge end at the bottom of the hopper 81 is correspondingly connected to the third feed port 71c, and the bottom of the hopper 81 is set as a slope surface 81a. The limiting feed plate 82 is located at the opening position of the discharge end at the bottom of the hopper 81, the upper end of the limiting feed plate 82 is rotatably connected to the inner wall of the hopper 81, and the lower end of the limiting feed plate 82 extends into the screening barrel 71 and covers the feed port 3 71c; One end of the second spring 83 is connected to the inner wall of the slope surface 81 a , and the other end of the second spring 83 is connected to the middle of the limiting feed plate 82 .

[0076] In the present invention, when the material falls into the hopper 81, the spring 2 83 is stretched under the action of gravity, the limiting feed plate 82 is opened, and the material enters the screening barrel 71 from the material port 3 71c. When the material in the hopper 81 gradually decreases, the spring 2 83 pulls the limiting feed plate 82 to rotate so that the material port 3 71c is closed; at the same time, under the pulling action of the spring 2 83, the material is prevented from leaking out of the material port 3 71c (when the screening barrel 71 moves to the upper and lower parts of the crushing mechanism 2), forming a good sealing effect.

[0077] In the present invention, the bottom of the hopper 81 is configured as a slope surface 81a, which facilitates the material to enter the third material port 71c.

[0078] The collecting box 6 comprises a box body 61 and a partition 62, and the box body 61 opens upward; The partition 62 is located in the middle of the box body 61 to divide the box body 61 into a finished product collection bin 6a and a raw material collection bin 6b. The finished product collection bin 6a is located below the screening barrel assembly 7, and the raw material collection bin 6b is located below the feed hopper assembly 8.

[0079] In the present invention, the finished product collection bin 6a is used to collect qualified materials that pass through the screening net 72 after being crushed, and the raw material collection bin 6b is used to collect residual materials inside the hopper 81. The collection box 6 avoids mixing of different materials and facilitates the collection of materials.

[0080] In summary, the working principle of the present invention is as follows: the middle part of the rotating mechanism 3 is rotatably sleeved on the outside of the crushing mechanism 2, and the rotating mechanism 3 drives the two screening barrel assemblies 7 to rotate; during the rotation of the rotating mechanism 3, a discharge pipe 51 is arranged at the bottom of the material storage bin 5 to input the material into the feeding mechanism 4 through the feeding port 41c, and the capacity of the storage chamber 41e is adjusted by adjusting the width of the slider 1 42 and the slider 2 43, so as to control the amount of material entering the hopper assembly 8 each time, so as to further improve the accuracy of crushing, avoid the problem of wasting energy and affecting the processing quality due to too much or too little material; during the rotation of the rotating mechanism 3, materials are continuously entering the screening barrel assembly 7 for processing, and at the same time, some materials are processed twice, three times and multiple times; the materials fall into the hopper 81, and under the action of gravity, the spring 2 83 is stretched, the limiting feed plate 82 is opened, and the materials enter the screening barrel 71 from the feeding port 3 71c, and the upper peripheral surface of the feed hopper assembly 8 is docked with the arc groove 41b to form a sealing structure to avoid leakage of materials and improve the accuracy of material transmission. The finished product collection bin 6a is used to collect qualified materials that pass through the screening net 72 after being crushed; the raw material collection bin 6b is used to collect residual materials inside the hopper 81 to avoid mixing of different materials and facilitate the collection of materials.

[0081] In summary, in the present invention, the support 1 has a stable structure and can stably support the stable operation of the equipment. The middle part of the rotating mechanism 3 is rotatably sleeved on the outside of the crushing mechanism 2. When the rotating mechanism 3 rotates to a predetermined position, the material in the screening barrel assembly 7 located above can pass through the crushing mechanism 2 to achieve crushing of the material, and the crushed material can fall into the screening barrel assembly 7 located below. In the process of the rotating mechanism 3 driving the two screening barrel assemblies 7 to rotate, multiple crushing processes of the material are achieved to improve the crushing accuracy, that is, the material that is unqualified in one processing can be repeatedly passed through the crushing mechanism 2 for secondary and multiple crushing to meet the predetermined material requirements, and the qualified material after crushing can smoothly fall into the collection box 6 for centralized collection. The reciprocating processing of the material improves the utilization rate of the material, avoids the situation of removing the unqualified material after one processing, saves the material, and the multiple processing of the equipment improves the processing accuracy. At the same time, in the process of multiple crushing, the waste rate is very low.

[0082] In the present invention, the fixing member 22 is cylindrical to ensure that the rotating cylinder 37 rotates more smoothly around it. At the same time, the outer circumference of the fixing member 22 fits the inner circumference of the rotating cylinder 37 to avoid leakage of materials and has good sealing performance; the feeding channel 22a can be installed with the crushing tooth group 23, and can also ensure the passage of materials; at the same time, during the rotation of the rotating cylinder 37, when the bottom of the feeding channel 22a is blocked by the rotating cylinder 37, the feeding channel 22a also has a mobile storage function, until the rotating cylinder 37 rotates to the feeding channel 22a and is connected with the screening barrel assembly 7, the material can fall into the corresponding screening barrel assembly 7.

[0083] In the present invention, the support plate 2 31 has a good supporting effect on the rotating mechanism 3; the power mechanism 32 drives the rotating plate 33 to rotate, and the rotating plate 33 further drives the screening barrel assembly 7 to rotate through the connecting plate 35, and the screening barrel assembly 7 further drives the rotating barrel 37 to rotate.

[0084] In the present invention, the linkage rod 45 moves along the track (laterally) of the strip hole 41a, and the strip hole 41a has a good limiting effect; the linkage rod 45 drives the material moving assembly to move during the movement, thereby completing the material feeding process of the feeding mechanism 4. A discharge pipe 51 is arranged at the bottom of the raw material storage bin 5 to input the material into the feeding mechanism 4 through the feed port 41c, and the material falls into the feed hopper assembly 8 from the discharge port 41d under the action of the material moving assembly, thereby completing the control of material feeding.

[0085] In the present invention, under the rotation of the rotating mechanism 3, the automatic feeding process can be completed, and under the rotation of the rotating mechanism 3, the rotation process and the feeding process can be coordinated with each other, which greatly improves the crushing efficiency of the material and improves the processing quality.

[0086] In the present invention, the material port three 71c is located on the side of the screening net 72 facing the material port two 71b, so as to prevent the unprocessed and crushed materials from leaking out of the screening barrel 71, and the screening net 72 has a good blocking effect; the surface area of ​​the screening net 72 is increased to increase the screening area and improve the screening effect; the bottom of the hopper 81 is set as a slope surface 81a, which is conducive to the material entering the material port three 71c; the collecting box 6 avoids the mixing of different materials and facilitates the collection of materials.

[0087] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A coated sand crushing and screening equipment, characterized in that: It comprises a support (1), a crushing mechanism (2), a rotating mechanism (3), a feeding mechanism (4), a raw material storage bin (5), a collecting box (6), a screening barrel assembly (7) and a feeding hopper assembly (8); The bracket (1) comprises a base (11), a side support frame (12) and a top support plate (13), wherein the bottom of the side support frame (12) is fixed on the base (11), and the top support plate (13) is fixed on the top of the side support frame (12); The crushing mechanism (2) is fixed on the base (11), the rotating mechanism (3) is fixed on the base (11), the middle part of the rotating mechanism (3) is rotatably sleeved on the outer side of the crushing mechanism (2), and the rotating mechanism (3) and the crushing mechanism (2) are respectively provided with through holes for materials to pass through, so as to form a passage for materials to pass through; The screening barrel assemblies (7) are provided with two, and are respectively arranged on both sides of the rotating mechanism (3) and located on the same straight line, and a feed hopper assembly (8) is installed on one of the screening barrel assemblies (7); The feeding mechanism (4) is fixed on the side support frame (12), the raw material storage bin (5) is fixed on the top support plate (13), the discharge end of the raw material storage bin (5) is connected to the feed end of the feeding mechanism (4), and the discharge end of the feeding mechanism (4) is located above the rotating mechanism (3) and corresponds to the feeding hopper assembly (8); The collection box (6) is fixed on the base (11) and is located below the rotating mechanism (3).

2. The coated sand crushing and screening equipment according to claim 1, characterized in that: The pulverizing mechanism (2) comprises a support plate (21), a fixing member (22) and a pulverizing tooth group (23), one end of the fixing member (22) is fixed to the support plate (21), and the support plate (21) is fixed to the base (11); The fixing member (22) is cylindrical, a material passing passage (22a) is provided in the middle of the fixing member (22) for materials to pass through, a crushing tooth group (23) is rotatably arranged inside the material passing passage (22a), and a power mechanism for driving the crushing tooth group (23) to rotate is provided inside the fixing member (22); The rotating mechanism (3) comprises a rotating cylinder (37), the rotating cylinder (37) being rotatably sleeved on the outer circumference of the fixing member (22), and the outer circumference of the fixing member (22) being in contact with the inner circumference of the rotating cylinder (37), and two plug interfaces (37a) are correspondingly provided on the rotating cylinder (37); The material passing channel (22a) and the two plug ports (37a) are located in the same vertical direction to form a channel for materials to pass through; One end of the screening barrel assembly (7) is inserted into the insertion port (37a) and fixed to the rotating barrel (37).

3. The coated sand crushing and screening equipment according to claim 2, characterized in that: The rotating mechanism (3) comprises a second supporting plate (31), a rotating plate (33) and a connecting plate (35); the second supporting plate (31) is fixed on the base (11) and is parallel to the first supporting plate (21); The rotating plate (33) is rotatably arranged on the second supporting plate (31), and the second supporting plate (31) is provided with a power mechanism (32) for driving the rotating plate (33) to rotate; One end of the connecting plate (35) is fixed to the rotating plate (33), and the other end of the connecting plate (35) is connected to the screening barrel assembly (7).

4. The coated sand crushing and screening equipment according to claim 3, characterized in that: A fixing ring (34) is provided on the rotating plate (33), and a support rod (36) is provided on the circumference of the fixing ring (34); The feeding mechanism (4) comprises a discharge cylinder (41), a material transfer assembly and a linkage rod (45); a cavity is provided inside the discharge cylinder (41), and the material transfer assembly is arranged in the cavity; One end of the discharge barrel (41) is fixed to the side support frame (12), a strip hole (41a) is opened on the side of the discharge barrel (41), one end of the linkage rod (45) passes through the strip hole (41a) and is fixed to the moving component, and the other end of the linkage rod (45) abuts against the support rod (36) to form a linkage mechanism; A feed port (41c) is provided on the upper surface of one end of the discharge barrel (41) close to the side support frame (12), and a discharge port (41d) is provided on the lower surface of one end of the discharge barrel (41) away from the side support frame (12); A discharge pipe (51) is provided at the bottom of the raw material storage bin (5), and the discharge pipe (51) is butt-jointed with the feed port (41c).

5. The coated sand crushing and screening equipment according to claim 4, characterized in that: The material moving assembly comprises a slider 1 (42), a slider 2 (43), a slide plate (44) and a spring 1 (46); the slider 1 (42) and the slider 2 (43) are respectively arranged at two ends of the slide plate (44); the slider 1 (42), the slider 2 (43) and the slide plate (44) are all slidably arranged in the inner cavity of the discharge barrel (41); The circumferential surfaces of the slider 1 (42) and the slider 2 (43) are in contact with the inner cavity wall of the discharge barrel (41), and the slide plate (44) presses the inner cavity of the discharge barrel (41) and covers the strip-shaped hole (41a) to form a sealing structure; A movable material storage chamber (41e) is formed between the slider 1 (42) and the slider 2 (43); One end of the spring one (46) is fixed to the side support frame (12), and the other end of the spring one (46) is connected to the slider one (42).

6. The coated sand crushing and screening equipment according to claim 4, characterized in that: An arc-shaped groove (41b) is provided at the position of the discharge port (41d) at the bottom of the discharge barrel (41), and the feed hopper assembly (8) is fan-shaped. The upper peripheral surface of the feed hopper assembly (8) corresponds to the arc-shaped groove (41b), so that the material passes through the discharge port (41d) and enters the feed hopper assembly (8).

7. A coated sand crushing and screening device according to any one of claims 4 to 6, characterized in that: The screening barrel assembly (7) comprises a screening barrel (71) and a screening net (72), wherein the screening net (72) is arranged inside the screening barrel (71); The screening barrel (71) is provided with a first material port (71a) at one end, and a second material port (71b) at the other end, and the end of the second material port (71b) of the screening barrel (71) is inserted into the insertion port (37a); The inner wall of the screening barrel (71) is provided with a third material port (71c), the bottom discharge end of the feed hopper assembly (8) is correspondingly connected to the third material port (71c), and the third material port (71c) is located on the side of the screening net (72) facing the second material port (71b).

8. The coated sand crushing and screening equipment according to claim 7, characterized in that: The surface of the screening net (72) is in the shape of a broken line or a curved surface.

9. The coated sand crushing and screening equipment according to claim 1, characterized in that: The feed hopper assembly (8) comprises a hopper (81), a limiting feed plate (82) and a second spring (83); the discharge end at the bottom of the hopper (81) is correspondingly connected to the third feed port (71c), and the bottom of the hopper (81) is arranged as a slope surface (81a); The limiting feed plate (82) is located at the opening position of the discharge end at the bottom of the hopper (81), the upper end of the limiting feed plate (82) is rotatably connected to the inner wall of the hopper (81), and the lower end of the limiting feed plate (82) extends into the screening barrel (71) and covers the third feed port (71c). One end of the second spring (83) is connected to the inner wall of the slope surface (81a), and the other end of the second spring (83) is connected to the middle part of the limiting feed plate (82).

10. The coated sand crushing and screening equipment according to claim 1, characterized in that: The collecting box (6) comprises a box body (61) and a partition (62), and the box body (61) has an opening facing upward; The partition plate (62) is located in the middle of the box body (61) to divide the box body (61) into a finished product collection bin (6a) and a raw material collection bin (6b); the finished product collection bin (6a) is located below the screening barrel assembly (7), and the raw material collection bin (6b) is located below the feed hopper assembly (8).

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