Feeding structure of sand making machine and sand making machine

Abstract

The present invention provides a feeding structure of a sand making machine and a sand making machine, which belongs to the technical field of sand making machines. The structure comprises a feeding mechanism, wherein the feeding mechanism comprises a feeding hopper assembly, and a feeding opening and closing assembly is connected to the lower end of the feeding hopper assembly, and a driving assembly is vertically connected between the left side of the lower end of the feeding hopper assembly and the left side of the feeding opening and closing assembly. The intermittent gear meshing at the lower end of the driving assembly is provided with a driving member, and the feeding mechanism is driven by the rotation of a rotor, so that the feeding mechanism does not need an external driving end and does not increase energy consumption. In addition, according to the actual situation of the rotor, the number of circles required for centrifugal force rotation to throw away the material is limited by the number of teeth of the rack and the number of teeth of the main gear. When the rotor just throws out sand and gravel for crushing, a suitable amount of sand and gravel enters the rotor cavity area through a sliding opening and closing of the feeding opening and closing assembly, so that there is an uninterrupted and limited amount of feed in the rotor cavity, so that the feed amount is more stable and there will be no problem of excessive or insufficient feed.

Description

Technical Field

[0001] The invention relates to a feeding structure of a sand making machine and a sand making machine, and belongs to the technical field of sand making machines. Background Art

[0002] Artificial sand refers to sand processed by sand making machines and other ancillary equipment. In recent years, with the increasing demand for sand and gravel aggregates in the construction industry, artificial sand refers to rock, mine tailings or industrial waste particles with a particle size of less than 4.75 mm that have been processed by soil removal, mechanical crushing and screening.

[0003] However, the existing sand making machines all feed materials directly into the rotor through a simple fixed hopper, and the centrifugal force generated by the high-speed rotation of the rotor throws out the sand and gravel particles to collide with the liner and crush them to obtain machine-made sand. Because the feed is fed into the middle of the rotor cavity, the rotor needs to rotate at high speed for two to four turns to throw out the sand and gravel particles. There are requirements for the amount of sand and gravel particles fed to the rotor each time, and they cannot be accumulated too much, otherwise the thrown sand and gravel will collide with each other, resulting in some sand and gravel not directly colliding and crushing with the liner, resulting in uneven sand and gravel crushing. In view of the above shortcomings, the present invention proposes a feeding structure of a sand making machine and a sand making machine. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a feeding structure for a sand making machine and a sand making machine to solve the existing problems.

[0005] In order to achieve the above-mentioned object, the present invention is realized by the following technical scheme: a feeding structure of a sand making machine, the structure of which includes a feeding mechanism, the feeding mechanism includes a feeding hopper assembly, and the lower end of the feeding hopper assembly is connected to a feeding opening and closing assembly, and a driving assembly is vertically connected between the left side of the lower end of the feeding hopper assembly and the left side of the feeding opening and closing assembly, and the intermittent gear at the lower end of the driving assembly is meshed with a driving member;

[0006] The feed hopper assembly includes a hopper frame, and two first swing seats and two second swing seats are aligned on the front and rear sides of the hopper frame, and a hopper body is connected between the two first swing seats and the two second swing seats, and a push-pull seat is provided at the lower end of the hopper body;

[0007] The feed opening and closing assembly is composed of an opening and closing base and a draw plate movable sleeve, the upper end of the draw plate is connected to a feed hose, and the upper end of the feed hose is connected to the lower end of the hopper body;

[0008] The driving component includes a driven end, and a driving component is meshed between the upper and middle ends of the driven end. A first push-pull group is arranged on the front side of the upper end of the driving component, and a second push-pull group is arranged on the front side of the middle end of the driving component. The right end of the first push-pull group is fixedly connected to the left end of the push-pull seat, and the right end of the second push-pull group is fixedly connected to the left end of the draw plate.

[0009] A further improvement is that the two first swing seats include a first support, and an arc-shaped half-open sleeve is opened at the upper end of the first support, and a single-head swing shaft is movably sleeved in the arc-shaped half-open sleeve;

[0010] The two second swing seats include a second support, and an arc-shaped swing sliding opening is opened in the middle of the second support, and a double-head swing shaft is movable sleeved in the arc-shaped swing sliding opening.

[0011] A further improvement is that when the driving member is driven to rotate and the intermittent meshing transmission drive assembly rotates, the first push-pull group pushes and pulls the hopper body to swing at an angle of 3-5 degrees to the left and right between the two first swing seats and the two second swing seats.

[0012] A further improvement is that a draw plate slide groove is transversely opened on the top surface of the opening and closing base, a first feed hole is opened through the left side of the bottom of the draw plate slide groove, and a plurality of draw plate clamping grooves are opened on the front and rear groove walls of the draw plate slide groove;

[0013] The pumping plate comprises a pumping plate body, a second feeding hole is formed through the right end of the top surface of the pumping plate body, and a plurality of pumping plate sleeve edges are arranged on the front and rear sides of the pumping plate body.

[0014] A further improvement is that when the driving member is driven to rotate and the intermittent meshing transmission drive assembly rotates, the push-pull draw plate of the second push-pull group slides left and right on the opening and closing base, so that the second feed hole slides to the left and overlaps with the first feed hole of different sizes to connect and discharge materials. The initial state of the first feed hole and the second feed hole is misaligned and not connected.

[0015] A further improvement is that the driven end includes a rotating shaft seat, and a transmission shaft is vertically sleeved through the rotating shaft seat, and a first bevel gear, a second bevel gear and a main gear are sleeved on the shaft body of the transmission shaft from top to bottom at intervals;

[0016] The driving component comprises a driving support, and a first driving member meshing with the first bevel gear is sleeved on the upper end of the driving support, and a second driving member meshing with the second bevel gear is sleeved on the middle end of the driving support.

[0017] As a further improvement, the first push-pull group includes a first rotating disk, a first pull rod is hinged at one end of the front side of the first rotating disk, and a first connecting block is hinged at the other end of the first pull rod.

[0018] A further improvement is that the second push-pull group includes a second turntable, and a second pull rod is hinged to one end of the front side of the second turntable through a latch for movable positioning and locking, and a second connecting block is hinged to the other end of the second pull rod, a plurality of distance-adjusting screw holes are laterally spaced apart on the right side of the front end of the second turntable, and a plurality of distance-adjusting through holes are spaced apart on the left side of the second pull rod body.

[0019] As a further improvement, the driving member comprises a circular seat, and a rack is provided on one side wall of the circular seat;

[0020] The number of teeth of the rack is one-half, one-third or one-quarter of the number of teeth of the main gear, and one-quarter is preferred in the present invention.

[0021] A further improvement is that, under the one-to-one correspondence between each distance adjusting screw hole and each distance through hole, when the pin is inserted into the distance adjusting screw hole that is farther away from the center point of the second turntable, the lateral swing spacing of the second pull rod will be larger, so that the overlapping connection between the first feed hole and the second feed hole will be larger.

[0022] A further improvement is that the left and right swing angle of the hopper body of the present invention is 3 degrees.

[0023] A sand making machine also includes a frame, and a crushing box is arranged on the top surface of the frame, and a rotor is arranged in the middle of the crushing box, a plurality of lining plates are arranged in a ring on the inner wall of the crushing box, and a motor is connected to the lower end of the rotor for transmission, the feeding mechanism is installed on the frame, and the lower end of the feeding mechanism is extended and installed on the upper end of the crushing box, the lower end of the feeding opening and closing assembly extends to above the feeding port of the rotor, and the driving member is fixed on the top surface of the rotor.

[0024] As a further improvement, the rotor is of prior art and its structure is not described in detail here.

[0025] The beneficial effects of the present invention are:

[0026] The present invention provides a feeding structure of a sand making machine and a sand making machine. The feeding mechanism composed of a feeding hopper assembly, a feeding opening and closing assembly, a driving assembly and a driving member is linked to the upper end of the sand making machine. The feeding mechanism is driven by the rotation of a rotor, so that the feeding mechanism does not need an external driving end and does not increase energy consumption. In addition, according to the actual situation of the rotor, the number of circles required for centrifugal force rotation to throw away the material is limited by the number of teeth of the rack and the number of teeth of the main gear. When the rotor just throws out sand and gravel for crushing, a suitable amount of sand and gravel enters the rotor cavity area through a sliding opening and closing of the feeding opening and closing assembly, so that there is an uninterrupted and limited amount of feed in the rotor cavity, so that the feed amount is more stable and there will be no problem of excessive or insufficient feed.

[0027] In addition, it can also be linked synchronously so that when the feed opening and closing component is opened for feeding, the hopper body will have an auxiliary small swing, so that the sand and gravel in the hopper body can flow more smoothly through the feed hose and through the feed opening opened by the feed opening and closing component, thereby ensuring that the feeding quantity is relatively consistent each time and avoiding problems such as material jamming in the hopper body and unsmooth feed flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a sand making machine of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the feed hopper assembly of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the second swing seat of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the feed opening and closing assembly of the present invention;

[0033] Figure 6 It is a left side view of the driving assembly of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the second push-pull group of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the driving member of the present invention;

[0036] Fig. 9 It is an enlarged schematic diagram of part A of the present invention. DETAILED DESCRIPTION

[0037] 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 explained below in conjunction with specific implementation methods.

[0038] See also Figure 1-Figure 9The present invention provides a feeding structure of a sand making machine and a sand making machine: a feeding structure of a sand making machine and a sand making machine, wherein the structure comprises a feeding mechanism 2, wherein the feeding mechanism 2 comprises a feeding hopper assembly 21, and a feeding opening and closing assembly 22 is connected to the lower end of the feeding hopper assembly 21, and a driving assembly 23 is vertically connected between the left side of the lower end of the feeding hopper assembly 21 and the left side of the feeding opening and closing assembly 22, and a driving member 24 is meshed with an intermittent gear at the lower end of the driving assembly 23, and the feeding hopper assembly 21 comprises a hopper frame 211, and two first swing seats 212 and two second swing seats 213 are aligned on the front and rear sides of the hopper frame 211, and a hopper body 2 is connected between the two first swing seats 212 and the two second swing seats 213. 14. A push-pull seat 215 is provided at the lower end of the hopper body 214. The feed opening and closing assembly 22 is composed of an opening and closing base 221 and a drawer plate 222 that are movably arranged. A feed hose 223 is connected to the upper end of the drawer plate 222, and the upper end of the feed hose 223 is connected to the lower end of the hopper body 214. The driving assembly 23 includes a driven end 231, and a driving assembly 232 is meshed between the upper and middle ends of the driven end 231. A first push-pull group 233 is provided on the front side of the upper end of the driving assembly 232, and a second push-pull group 234 is provided on the front side of the middle end of the driving assembly 232. The right end of the first push-pull group 233 is fixedly connected to the left end of the push-pull seat 215, and the right end of the second push-pull group 234 is fixedly connected to the left end of the drawer plate 222.

[0039] The two first swing seats 212 include a first support 2121, and an arc-shaped half-open sleeve 2122 is opened at the upper end of the first support 2121, and a single-head swing shaft 2123 is movably sleeved in the arc-shaped half-open sleeve 2122. The two second swing seats 213 include a second support 2131, and an arc-shaped swing slide 2132 is opened in the middle of the second support 2131, and a double-head swing shaft 2133 is movably sleeved in the arc-shaped swing slide 2132.

[0040] When the driving member 24 is driven to rotate and intermittently mesh with the transmission driving assembly 23 to rotate, the first push-pull group 233 pushes and pulls the hopper body 214 between the two first swing seats 212 and the two second swing seats 213 to swing at an angle of 3-5 degrees to the left and right.

[0041] A draw plate slot 2211 is horizontally opened on the top surface of the opening and closing base 221, and a first feed hole 2212 is opened through the left side of the bottom of the draw plate slot 2211, and a plurality of draw plate slots 2213 are opened on the front and rear walls of the draw plate slot 2211. The draw plate 222 includes a draw plate body 2221, and a second feed hole 2222 is opened through the right end of the top surface of the draw plate body 2221, and a plurality of draw plate sleeve edges 2223 are arranged on the front and rear sides of the draw plate body 2221.

[0042] When the driving member 24 is driven to rotate and the intermittent meshing transmission drive component 23 rotates, the second push-pull group 234 pushes and pulls the drawer 222 to slide left and right on the opening and closing base 221, so that the second feed hole 2222 slides to the left and overlaps with the first feed hole 2212 of different sizes to connect and discharge materials. The initial state of the first feed hole 2212 and the second feed hole 2222 is misaligned and not connected.

[0043] The driven end 231 includes a rotating shaft seat 2311, and a transmission shaft 2312 is vertically sleeved on the rotating shaft seat 2311, and a first bevel gear 2313, a second bevel gear 2314 and a main gear 2315 are sleeved on the shaft body of the transmission shaft 2312 from top to bottom. The driving component 232 includes a driving support 2321, and a first driving member 2322 meshing with the first bevel gear 2313 is sleeved on the upper end of the driving support 2321, and a second driving member 2323 meshing with the second bevel gear 2314 is sleeved on the middle end of the driving support 2321.

[0044] The first push-pull group 233 includes a first rotating disk 2331 , and a first pull rod 2332 is hinged to one end of the front side of the first rotating disk 2331 , and a first connecting block 2333 is hinged to the other end of the first pull rod 2332 .

[0045] The second push-pull group 234 includes a second turntable 2341, and one end of the front side of the second turntable 2341 is hinged with a second pull rod 2342 for movable positioning and locking through a pin 2343, and the other end of the second pull rod 2342 is hinged with a second connecting block 2344, and a plurality of distance adjusting screw holes 2345 are laterally spaced apart on the right side of the front end of the second turntable 2341, and a plurality of distance adjusting through holes 2346 are spaced apart on the left side of the rod body of the second pull rod 2342.

[0046] The driving member 24 includes a circular seat 241 , and a rack 242 is disposed on one side wall of the circular seat 241 . The number of teeth of the rack 242 is one half, one third, or one quarter of the number of teeth of the main gear 2315 .

[0047] It also includes a frame 11, and a crushing box 12 is arranged on the top surface of the frame 11, and a rotor 13 is arranged in the middle of the crushing box 12, and a plurality of lining plates 14 are arranged in a ring on the inner wall of the crushing box 12, and a motor 15 is connected to the lower end of the rotor 13 in a transmission manner, the feeding mechanism 2 is installed on the frame 11, and the lower end of the feeding mechanism 2 is extended and installed on the upper end of the crushing box 12, the lower end of the feeding opening and closing assembly 22 extends to above the feeding port of the rotor 13, and the driving member 24 is fixedly mounted on the top surface of the rotor 13.

[0048] Working principle:

[0049] First, a large amount of sand and gravel can be fed into the cavity of the hopper body 214 at one time. Because the first feed hole 2212 and the second feed hole 2222 on the feed opening and closing assembly 22 are initially misaligned and not connected, a large amount of material will not be fed automatically when the rotor 13 is not rotating. During sand making, the motor 15 drives the rotor 13 to rotate, which will synchronously cause the driving member 24 to rotate. The number of teeth on the rack 242 is designed to be one-fourth of the number of teeth on the main gear 2315. After the rotor 13 rotates four times at high speed, the intermittent gear meshing can drive the first bevel gear 2313 and the second bevel gear 2314 on the transmission shaft 2312 to rotate one circle, and the second bevel gear 2314 drives the second bevel gear 2314 through the second driving member 2323. The push-pull group 234 pushes and pulls the drawer plate 222 to slide left and right on the opening and closing base 221, allowing the second feed hole 2222 to slide to the left and overlap with the first feed hole 2212 to connect and discharge the material into the rotor 13 cavity. It should be noted that when the pin 2343 is inserted into the distance adjusting screw hole 2345 farther away from the center point of the second turntable 2341, the lateral swing spacing of the second pull rod 2342 will be larger. Therefore, the feed opening of the feed opening and closing component 22 of the present invention can adjust the opening and closing connection diameter according to actual needs, so that the feed amount of the feed opening and closing component 22 for an opening and closing sliding is exactly the amount required for the rotor 13 to be efficiently thrown out to collide with the liner 14, which can perfectly solve the problem of unstable feeding and uneven crushing.

[0050] In addition, the first bevel gear 2313 rotates through the first push-pull group 233 to push and pull the hopper body 214 between the two first swing seats 212 and the two second swing seats 213 to swing at an angle of 3 degrees to the left and right, so that the second feed hole 2222 of the feed opening and closing assembly 22 can slide to the left and overlap with the first feed hole 2212 to connect the feeding, and the hopper body 214 will assist in swinging to feed. Compared with the static discharge of the hopper body 214 in the prior art, there will be problems of stuck material flow and uneven feeding. The dynamic small-amplitude swing of the hopper body 214 is used to assist in feeding the feed opening and closing assembly 22. Each time the feed opening and closing assembly 22 is opened, the feeding amount of the hopper body 214 is more suitable for the rotor 13 to rotate four times, so that it can be evenly centrifugally thrown out and collided with the liner 14 for crushing, thereby preventing the rotor 13 from throwing out too much sand and gravel at one time, which will cause mutual collision between sand and gravel and uneven crushing.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sand making machine, comprising a feeding mechanism (2) and a frame (11), wherein a crushing box (12) is arranged on the top surface of the frame (11), and a rotor (13) is arranged in the middle of the crushing box (12), a plurality of lining plates (14) are arranged in an annular shape on the inner wall of the crushing box (12), and a motor (15) is connected to the lower end of the rotor (13), characterized in that: The feeding mechanism (2) comprises a feeding hopper assembly (21), the lower end of the feeding hopper assembly (21) is connected to a feeding opening and closing assembly (22), and a driving assembly (23) is vertically connected between the left side of the lower end of the feeding hopper assembly (21) and the left side of the feeding opening and closing assembly (22), and the lower end of the driving assembly (23) is intermittently geared with a driving member (24); The feeding mechanism (2) is mounted on the frame (11), and the lower end of the feeding mechanism (2) is extended and mounted on the upper end of the crushing box (12), the lower end of the feeding opening and closing assembly (22) extends above the feeding port of the rotor (13), and the driving member (24) is fixedly mounted on the top surface of the rotor (13); The feed hopper assembly (21) comprises a hopper frame (211), and two first swing seats (212) and two second swing seats (213) are aligned and arranged on both sides of the hopper frame (211), and a hopper body (214) is connected between the two first swing seats (212) and the two second swing seats (213), and a push-pull seat (215) is arranged at the lower end of the hopper body (214); The feed opening and closing assembly (22) is composed of an opening and closing base (221) and a draw plate (222) that are movably sleeved, the upper end of the draw plate (222) is connected to a feed hose (223), and the upper end of the feed hose (223) is connected to the lower end of the hopper body (214); The driving component (23) comprises a driven end (231), and a driving component (232) is meshed between the upper and middle ends of the driven end (231); a first push-pull group (233) is provided on the front side of the upper end of the driving component (232), and a second push-pull group (234) is provided on the front side of the middle end of the driving component (232); the right end of the first push-pull group (233) is fixedly connected to the left end of the push-pull seat (215), and the right end of the second push-pull group (234) is fixedly connected to the left end of the draw plate (222); The driven end (231) comprises a rotating shaft seat (2311), and a transmission shaft (2312) is sleeved vertically through the rotating shaft seat (2311), and a first bevel gear (2313), a second bevel gear (2314) and a main gear (2315) are sleeved on the shaft body of the transmission shaft (2312) from top to bottom in intervals; The driving component (232) comprises a driving support (2321), wherein the upper end of the driving support (2321) is sleeved with a first driving member (2322) meshing with the first bevel gear (2313), and the middle end of the driving support (2321) is sleeved with a second driving member (2323) meshing with the second bevel gear (2314); The first push-pull group (233) comprises a first rotating disk (2331), and a first pull rod (2332) is hingedly connected to one end of the front side of the first rotating disk (2331), and a first connecting block (2333) is hingedly connected to the other end of the first pull rod (2332); The second push-pull group (234) comprises a second rotating disk (2341), and a second pull rod (2342) is hingedly connected to one end of the front side of the second rotating disk (2341) by means of a latch (2343) for movable positioning and locking, and a second connecting block (2344) is hingedly connected to the other end of the second pull rod (2342); a plurality of distance-adjusting screw holes (2345) are laterally spaced apart on the right side of the front end of the second rotating disk (2341), and a plurality of distance-adjusting through holes (2346) are spaced apart on the left side of the rod body of the second pull rod (2342); The driving member (24) comprises a circular seat (241), and a rack (242) is provided on a side wall of the circular seat (241); The number of teeth of the rack (242) is one half, one third, or one quarter of the number of teeth of the main gear (2315).

2. A sand making machine according to claim 1, characterized in that: The two first swing seats (212) include a first support seat (2121), and an arc-shaped half-open sleeve (2122) is provided at the upper end of the first support seat (2121), and a single-head swing shaft (2123) is movably sleeved in the arc-shaped half-open sleeve (2122); The two second swing seats (213) include a second support seat (2131), and an arc-shaped swing sliding opening (2132) is provided in the middle of the second support seat (2131), and a double-headed swing shaft (2133) is movably sleeved in the arc-shaped swing sliding opening (2132).

3. A sand making machine according to claim 2, characterized in that: When the driving member (24) is driven to rotate and the intermittent meshing transmission drive assembly (23) rotates, the first push-pull group (233) pushes and pulls the hopper body (214) between the two first swing seats (212) and the two second swing seats (213) to swing at an angle of 3-5 degrees to the left and right.

4. A sand making machine according to claim 3, characterized in that: The top surface of the opening and closing base (221) is provided with a draw plate slide groove (2211) in a transverse direction, a first material feeding hole (2212) is provided through the left side of the bottom of the draw plate slide groove (2211), and a plurality of draw plate clamping grooves (2213) are provided on the front and rear groove walls of the draw plate slide groove (2211); The draw plate (222) comprises a draw plate body (2221), a second material feed hole (2222) is provided through the right end of the top surface of the draw plate body (2221), and a plurality of draw plate sleeve edges (2223) are provided on the front and rear sides of the draw plate body (2221).

5. A sand making machine according to claim 4, characterized in that: When the driving member (24) is driven to rotate and the intermittent meshing transmission drive assembly (23) rotates, the second push-pull group (234) and the push-pull draw plate (222) slide left and right on the opening and closing base (221), so that the second feed hole (2222) slides leftward and overlaps with the first feed hole (2212) in different sizes to discharge materials. The first feed hole (2212) and the second feed hole (2222) are initially misaligned and not connected.

Images