Precoated sand crushing and screening equipment
By introducing a servo motor-driven transmission block and spring-coordinated screening network movement mechanism in the laminated sand crushing and screening equipment, the problem of poor crushing effect is solved, and the consistency of powder size and production efficiency is improved. The optimization of the collection box design reduces the wear of the collection box and improves the quality of the finished product.
Patent Information
- Application Number
- CN202420845119.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing coating sand crushing and screening equipment has poor crushing effect, resulting in inconsistent size of the crushed powder, affecting the finished product effect.
A coated sand crushing and screening equipment is designed, including a processing box, crushing mechanism, screening mechanism and collection mechanism. The transmission block is driven to rotate through a servo motor, push the screening net to move and cooperate with the spring to realize the straight line of the screening net. Reset movement to improve screening effect and improve screening effect through rubber columns while using a collection box to reduce wear in the collection box.
The consistency of crushed sand powder is improved, production efficiency is improved, and the wear of the collection box is reduced by optimizing the design of the collection box and improving the quality of the finished product.
Smart Images
Figure CN222197081U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coated sand processing, in particular to a coated sand crushing and screening device. Background Art
[0002] Coated sand is a molding sand or core sand with a layer of solid resin film on the surface of the sand before molding. There are two coating processes: cold method and hot method. The cold method uses ethanol to dissolve the resin, and adds urotropine during the sand mixing process, so that the two are coated on the surface of the sand, and the ethanol evaporates to obtain coated sand; the hot method preheats the sand to a certain temperature, adds resin to melt it, stirs to coat the resin on the surface of the sand, adds urotropine aqueous solution and lubricant, cools, crushes, and sieves to obtain coated sand, which is used for casting steel and iron parts. Coated sand mainly uses high-quality selected natural quartz sand as raw sand, thermoplastic phenolic resin, urotropine and enhancer as raw materials. According to the different technical requirements of users, the proportion is appropriately adjusted in terms of curing speed, demolding, fluidity, disintegration, casting surface finish, storage, etc. It is one of the best molding materials for automobiles, tractors, hydraulic parts, etc. When processing coated sand, it is necessary to crush the raw sand of coated sand so that the particle size of the raw sand of coated sand meets the processing requirements.
[0003] The existing coated sand crushing and screening equipment has a poor crushing effect on the coated sand, which causes serious grinding of the equipment and leads to low production efficiency. At the same time, the size of the crushed coated sand powder may not be consistent, thus affecting the effect of the finished product. Utility Model Content
[0004] The main purpose of the utility model is to provide a coated sand crushing and screening device, which solves the problem that the size of the crushed coated sand powder may be inconsistent, thereby affecting the effect of the finished product, through the provided screening mechanism.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A coated sand crushing and screening device comprises a processing box, a feeding funnel fixedly connected to the top of the processing box, a sealing door hinged to the opening of the side wall of the processing box, and a crushing mechanism connected to the side wall of the processing box, a screening mechanism connected to the side wall of the processing box, and a collecting mechanism arranged inside the processing box;
[0007] The screening mechanism comprises a sealing plate inserted in the opening of the side wall of the processing box, a sliding rod and a first spring fixedly connected to the side wall of the sealing plate, and a screening member sleeved on the outer side wall of the sliding rod;
[0008] The collecting mechanism comprises a mounting frame fixedly connected to the bottom wall of the processing box, and a collecting box connected to the mounting frame through a connecting piece for carrying the coated sand.
[0009] Preferably, the screening element comprises a rectangular frame sleeved on the outer side wall of the slide rod, a screening net fixedly connected to the bottom of the rectangular frame, a guide plate fixedly connected to the inner side wall of the processing box, and a second spring fixedly connected to one side of the rectangular frame;
[0010] The end surface of the first spring is fixedly connected to the other side of the rectangular frame.
[0011] Preferably, the screening mechanism also includes a servo motor fixedly connected to the outer wall of the processing box, a transmission shaft fixedly connected to the output end of the servo motor, a connecting ring fixedly connected to the outer wall of the transmission shaft, and a transmission block fixedly connected to the outer wall of the connecting ring.
[0012] Preferably, the screening mechanism further comprises a guide rod fixedly connected to the inner side wall of the processing box, a knob rotatably connected to the outer side wall of the processing box, and a baffle fixedly connected to the outer side wall of the knob.
[0013] Preferably, the screening mechanism further comprises a rubber column fixedly connected to the inner wall of the processing box, and the end surface of the rubber column faces the rectangular frame.
[0014] Preferably, the connecting member includes a rectangular hole opened on the outer wall of the mounting frame, a mounting groove opened on the top of the mounting frame, a horizontal wheel rotatably connected to the upper and lower inner walls of the rectangular hole, a vertical wheel rotatably connected to the inner wall of the mounting groove, and a positioning groove opened at the bottom of the collection box.
[0015] Preferably, the crushing mechanism comprises a driving motor fixedly connected to the outer side wall of the processing box, a main gear fixedly connected to the outer side wall of the output end of the driving motor, a first crushing member and a second crushing member penetrating the side wall of the processing box, and a transmission gear fixedly connected to the outer side wall of the second crushing member;
[0016] The first crushing member includes a movable shaft penetrating the side wall of the processing box and a crushing roller fixedly connected to the outer wall of the movable shaft. The second crushing member has the same composition structure as the first crushing member. The movable shaft of the first crushing member is fixedly connected to the output end of the driving motor.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] 1. In the utility model, the servo motor drive shaft rotates, thereby driving the transmission block to rotate. During this process, the transmission block will contact the screening net, thereby pushing the screening net to move along the axial direction of the slide rod and compressing the first spring until the transmission block is separated from the screening net. At this time, the first spring will push the screening net to move in the direction of the second spring, thereby realizing the horizontal linear resetting movement of the screening net, so as to screen the coated sand inside the screening net, and the screening net will drive the rectangular frame to hit the rubber column during the movement, so as to improve the screening effect of the screening net.
[0019] 2. In the utility model, the coated sand after crushing is collected by a collecting box. After the collection is completed, the sealing door is opened, so that the collecting box can be taken out. During this process, the horizontal wheels and the vertical wheels will roll inside the positioning groove, so as to improve the smoothness of the movement of the collecting box and reduce the wear on the collecting box. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the right side structure of the utility model;
[0021] Figure 2 It is a schematic diagram of the left side structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the utility model;
[0023] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle;
[0024] Figure 5 For this utility model Figure 3 A magnified schematic diagram of structure B in the middle.
[0025] In the figure: 1, processing box; 2, feeding funnel; 3, sealing door; 401, driving motor; 402, main gear; 403, movable shaft; 404, transmission gear; 405, crushing roller; 501, sealing plate; 502, sliding rod; 503, first spring; 504, rectangular frame; 505, screening net; 506, guide plate; 507, servo motor; 508, transmission shaft; 509, connecting ring; 5010, transmission block; 5011, second spring; 5012, guide rod; 5013, rubber column; 5014, knob; 5015, baffle; 601, collecting box; 602, mounting frame; 603, horizontal wheel; 604, vertical wheel. DETAILED DESCRIPTION
[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0027] Embodiment 1: Figure 1-5 As shown, a coated sand crushing and screening device comprises a processing box 1, a feeding funnel 2 fixedly connected to the top of the processing box 1, a sealing door 3 hinged to the opening of the side wall of the processing box 1, and a crushing mechanism connected to the side wall of the processing box 1, a screening mechanism connected to the side wall of the processing box 1, and a collecting mechanism arranged inside the processing box 1;
[0028] The screening mechanism includes a sealing plate 501 inserted into the opening of the side wall of the processing box 1, a sliding rod 502 and a first spring 503 fixedly connected to the side wall of the sealing plate 501, and a screening member sleeved on the outer side wall of the sliding rod 502;
[0029] The collecting mechanism comprises a mounting frame 602 fixedly connected to the inner bottom wall of the processing box 1, and a collecting box 601 connected to the mounting frame 602 via a connecting piece for carrying coated sand.
[0030] The screening element includes a rectangular frame 504 sleeved on the outer wall of the slide bar 502, a screening net 505 fixedly connected to the bottom of the rectangular frame 504, a guide plate 506 fixedly connected to the inner wall of the processing box 1, and a second spring 5011 fixedly connected to one side of the rectangular frame 504;
[0031] The end face of the first spring 503 is fixedly connected to the other side of the rectangular frame 504, wherein there are two groups of guide plates 506, both groups of guide plates 506 are inclined, and the bottom end of the guide plate 506 is in contact with the top edge of the side wall of the rectangular frame 504, wherein the top end of the guide plate 506 is located below the crushing mechanism, and the crushed coated sand is transported to the inside of the screening net 505 through the guide plate 506.
[0032] The screening mechanism also includes a servo motor 507 fixedly connected to the outer wall of the processing box 1, a transmission shaft 508 fixedly connected to the output end of the servo motor 507, a connecting ring 509 fixedly connected to the outer wall of the transmission shaft 508, and a transmission block 5010 fixedly connected to the outer wall of the connecting ring 509, wherein the transmission shaft 508 is located inside the processing box 1, and the distance between the axis of the transmission shaft 508 and the outer wall of the screening net 505 is less than the length of the transmission block 5010, and the transmission is driven by the servo motor 507. During the rotation of block 5010, the transmission block 5010 will contact the screening mesh 505, thereby pushing the screening mesh 505 to move along the axial direction of the slide rod 502 and compressing the first spring 503 until the transmission block 5010 is separated from the screening mesh 505. At this time, the first spring 503 will push the screening mesh 505 to move in the direction of the second spring 5011, thereby realizing the horizontal linear reset movement of the screening mesh 505, so as to screen the coated sand inside the screening mesh 505.
[0033] The screening mechanism also includes a guide rod 5012 fixedly connected to the inner wall of the processing box 1, a knob 5014 rotatably connected to the outer wall of the processing box 1, and a baffle 5015 fixedly connected to the outer wall of the knob 5014, wherein the rectangular frame 504 is sleeved on the outer wall of the guide rod 5012, and by rotating the knob 5014, it drives the outer wall of the baffle 5015 to fit the outer wall of the sealing plate 501, thereby fixing the screening net 505 inside the processing box 1.
[0034] The screening mechanism also includes a rubber column 5013 fixedly connected to the inner wall of the processing box 1, and the end face of the rubber column 5013 faces the rectangular frame 504. When the screening net 505 is moving, it will drive the rectangular frame 504 to collide with the rubber column 5013, thereby improving the screening effect of the screening net 505.
[0035] The crushing mechanism includes a driving motor 401 fixedly connected to the outer wall of the processing box 1, a main gear 402 fixedly connected to the outer wall of the output end of the driving motor 401, a first crushing member and a second crushing member penetrating the side wall of the processing box 1, and a transmission gear 404 fixedly connected to the outer wall of the second crushing member;
[0036] The first crushing member includes a movable shaft 403 passing through the side wall of the processing box 1, and a crushing roller 405 fixedly connected to the outer wall of the movable shaft 403. The second crushing member has the same composition structure as the first crushing member. The movable shaft 403 of the first crushing member is fixedly connected to the output end of the driving motor 401, and the inner wall of the transmission gear 404 is fixedly connected to the outer wall of the movable shaft 403 of the second crushing member, wherein the main gear 402 is meshed with the transmission gear 404.
[0037] The coated sand is transported from the feed hopper 2 to the processing box 1, and the driving motor 401 is started, so that the driving motor 401 drives the movable shaft 403 of the first crushing member and the main gear 402 to rotate forward, and then the main gear 402 drives the transmission gear 404 meshing therewith to rotate reversely, thereby driving the two crushing rollers 405 to rotate in opposite directions, so as to crush the coated sand, and the crushed coated sand will enter the interior of the screening net 505 under the action of the guide plate 506;
[0038] Then, the transmission shaft 508 is rotated by the servo motor 507, thereby driving the transmission block 5010 to rotate. During this process, the transmission block 5010 will contact the screening net 505, thereby pushing the screening net 505 to move along the axial direction of the slide bar 502 and compressing the first spring 503 until the transmission block 5010 is separated from the screening net 505. At this time, the first spring 503 will push the screening net 505 to move in the direction of the second spring 5011, thereby realizing the screening net 505 to perform a horizontal linear reset motion, so as to screen the coated sand inside the screening net 505, and the screening net 505 will drive the rectangular frame 504 to hit the rubber column 5013 during the movement, so as to improve the screening effect of the screening net 505, wherein the coated sand with a particle size larger than the aperture of the screening net 505 will remain inside the screening net 505, and the coated sand with a particle size smaller than the aperture of the screening net 505 will fall into the inside of the collecting box 601;
[0039] Then, the knob 5014 is turned to drive the baffle 5015 to separate from the sealing plate 501. At this time, the coated sand inside the screening net 505 can be transported back to the inside of the processing box 1 for secondary crushing.
[0040] Embodiment 2: Figure 1-5 As shown, a coated sand crushing and screening device comprises a processing box 1, a feeding funnel 2 fixedly connected to the top of the processing box 1, a sealing door 3 hinged to the opening of the side wall of the processing box 1, and a crushing mechanism connected to the side wall of the processing box 1, a screening mechanism connected to the side wall of the processing box 1, and a collecting mechanism arranged inside the processing box 1;
[0041] The screening mechanism includes a sealing plate 501 inserted into the opening of the side wall of the processing box 1, a sliding rod 502 and a first spring 503 fixedly connected to the side wall of the sealing plate 501, and a screening member sleeved on the outer side wall of the sliding rod 502;
[0042] The collecting mechanism comprises a mounting frame 602 fixedly connected to the inner bottom wall of the processing box 1, and a collecting box 601 connected to the mounting frame 602 via a connecting piece for carrying coated sand.
[0043] The connecting part includes a rectangular hole opened on the outer wall of the mounting frame 602, a mounting groove opened on the top of the mounting frame 602, a horizontal wheel 603 rotatably connected to the upper and lower inner walls of the rectangular hole, a vertical wheel 604 rotatably connected to the inner wall of the mounting groove, and a positioning groove opened on the bottom of the collection box 601, wherein the outer wall of the horizontal wheel 603 is in contact with the inner wall of the positioning groove, and the top surface of the vertical wheel 604 protrudes out of the mounting groove and is in contact with the inner top wall of the positioning groove.
[0044] The coated sand after crushing is collected through the collection box 601. When the collection is completed, the sealing door 3 is opened, so that the collection box 601 can be taken out. During this process, the horizontal wheel 603 and the vertical wheel 604 will roll inside the positioning groove to improve the smoothness of the movement of the collection box 601 and reduce the wear on the collection box 601.
Claims
1. A coated sand crushing and screening device, comprising a processing box (1), a feeding funnel (2) fixedly connected to the top of the processing box (1), a sealing door (3) hingedly connected to an opening of a side wall of the processing box (1), and a crushing mechanism connected to the side wall of the processing box (1), It is characterized in that It also includes a screening mechanism connected to the side wall of the processing box (1), and a collecting mechanism arranged inside the processing box (1); The screening mechanism comprises a sealing plate (501) inserted into an opening of a side wall of a processing box (1), a sliding rod (502) and a first spring (503) fixedly connected to the side wall of the sealing plate (501), and a screening element sleeved on an outer side wall of the sliding rod (502); The collection mechanism comprises a mounting frame (602) fixedly connected to the inner bottom wall of the processing box (1), and a collection box (601) connected to the mounting frame (602) via a connecting piece and used for carrying coated sand.
2. The coated sand crushing and screening equipment according to claim 1, Features: The screening element comprises a rectangular frame (504) sleeved on the outer wall of the slide bar (502), a screening net (505) fixedly connected to the bottom of the rectangular frame (504), a guide plate (506) fixedly connected to the inner wall of the processing box (1), and a second spring (5011) fixedly connected to one side of the rectangular frame (504); The end surface of the first spring (503) is fixedly connected to the other side of the rectangular frame (504).
3. The coated sand crushing and screening equipment according to claim 2, Features: The screening mechanism further comprises a servo motor (507) fixedly connected to the outer wall of the processing box (1), a transmission shaft (508) fixedly connected to the output end of the servo motor (507), a connecting ring (509) fixedly connected to the outer wall of the transmission shaft (508), and a transmission block (5010) fixedly connected to the outer wall of the connecting ring (509).
4. The coated sand crushing and screening equipment according to claim 3, Features: The screening mechanism also includes a guide rod (5012) fixedly connected to the inner wall of the processing box (1), a knob (5014) rotatably connected to the outer wall of the processing box (1), and a baffle (5015) fixedly connected to the outer wall of the knob (5014).
5. The coated sand crushing and screening equipment according to claim 4, Features: The screening mechanism further comprises a rubber column (5013) fixedly connected to the inner wall of the processing box (1), and the end surface of the rubber column (5013) faces the rectangular frame (504).
6. The coated sand crushing and screening equipment according to claim 5, Features: The connecting member comprises a rectangular hole formed on the outer wall of the mounting frame (602), a mounting groove formed on the top of the mounting frame (602), a horizontal wheel (603) rotatably connected to the upper and lower inner walls of the rectangular hole, a vertical wheel (604) rotatably connected to the inner wall of the mounting groove, and a positioning groove formed on the bottom of the collection box (601).
7. The coated sand crushing and screening equipment according to claim 6, Features: The crushing mechanism comprises a driving motor (401) fixedly connected to the outer wall of the processing box (1), a main gear (402) fixedly connected to the outer wall of the output end of the driving motor (401), a first crushing member and a second crushing member penetrating the side wall of the processing box (1), and a transmission gear (404) fixedly connected to the outer wall of the second crushing member; The first crushing member comprises a movable shaft (403) penetrating the side wall of the processing box (1), and a crushing roller (405) fixedly connected to the outer side wall of the movable shaft (403); the second crushing member has the same composition structure as the first crushing member; the movable shaft (403) of the first crushing member is fixedly connected to the output end of the driving motor (401).