Stone shaping machine

Abstract

The utility model relates to the technical field of stone shaping, in particular to a stone shaping machine. The stone reshaping device can improve the stone reshaping effect, reduce further cracking of stones, ensure that the particle sizes of the stones are basically unchanged, avoid equipment blockage caused by the stones and realize separation of the stones and crushed aggregates; comprising a rack, a rotating shaft rotationally installed on the rack, a screen drum fixedly installed on the rotating shaft and a shaping mechanism, a first motor for providing power for rotation of the rotating shaft is installed on the rack, and the shaping mechanism comprises annular frames arranged at the two ends of the screen drum in a sleeving mode and fixedly connected with the rack and a plurality of grinding rollers installed between the two annular frames; the grinding rollers are circumferentially arranged around the outer wall of the screen drum, a plurality of groups of screen bars which are uniformly distributed in the circumferential direction are arranged on the screen drum, and a gap is reserved between every two adjacent screen bars; the grinding rollers are rotatably mounted on an annular frame, a connecting frame is fixedly mounted on the annular frame, and a second motor for providing power for rotation of the grinding rollers is fixedly mounted on the connecting frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stone shaping, in particular to a stone shaping machine. BACKGROUND

[0002] Stone is the main material of paving, and natural stone has sharp corners, and the sharp corners and edges of the stone can cause damage to the asphalt adhesive film at the bonding site of the stone, and the needle-shaped flat stone is easy to break, which can also reduce the strength of the road surface, so the stone corners need to be flattened.

[0003] Chinese utility model patent CN203525817U discloses a stone shaping machine, which comprises a rack, a feeding hopper fixed above the rack, and a shaping rotor capable of performing high-speed rotary motion around its symmetry axis, a shaping cavity is formed between the shaping head of the shaping rotor and the feeding hopper, the surface of the shaping head is provided with wear-resistant parts, and the bottom of the shaping cavity is provided with a discharge port.

[0004] However, the inventor found that the shaping cavity formed between the shaping rotor and the feeding hopper is prone to stone jamming, and when the stone supply amount is large, the stone is prone to being extruded, which can cause the stone to break and the particle size of the stone to be too small; and the shaped stone is mixed with the broken stone, so that secondary screening is required. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a stone shaping machine which can improve the stone shaping effect, reduce further breakage of the stone, ensure that the particle size of the stone is basically unchanged, avoid equipment jamming caused by the stone, and realize separation of the stone and the broken stone.

[0007] (II) Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a stone shaping machine, which comprises a rack, a rotating shaft rotatably installed on the rack, a screen cylinder fixedly installed on the rotating shaft, and a shaping mechanism, a first motor is installed on the rack to provide power for rotation of the rotating shaft, the shaping mechanism comprises a ring frame which is sleeved on both ends of the screen cylinder and is fixedly connected with the rack, and a plurality of grinding rollers which are installed between the two ring frames, the grinding rollers are arranged in the circumferential direction of the outer wall of the screen cylinder, a plurality of groups of screen bars are arranged on the screen cylinder in the circumferential direction and are uniformly distributed, and a space is left between adjacent two screen bars; further, the first motor is a speed-regulating motor, and the space between the two adjacent screen bars allows the stone edge to pass through.

[0009] Preferably, the grinding roller is rotatably mounted on a ring frame, a connecting frame is fixedly mounted on the ring frame, and a second motor for providing power for rotation of each grinding roller is fixedly mounted on the connecting frame; further, one end of the grinding roller is fixedly mounted with a driven sprocket, the output end of the second motor is mounted with a driving sprocket, and the driving sprocket and the driven sprocket are connected through a chain transmission.

[0010] Preferably, the frame is mounted with a fixed cylinder, the middle and lower part of the fixed cylinder is provided with uniformly distributed screen holes, a plurality of brushes are mounted on the fixed cylinder extending to the rotating shaft, a spacing allowing the stone to pass through is left between adjacent two brushes, and the fixed cylinder is rotatably connected with the screen cylinder; further, the plurality of brushes are enclosed in a cylindrical body shape; the aperture of the screen hole is larger than the spacing between two adjacent screen strips, and the spacing between two adjacent brushes is at least 10 cm to ensure the passage of the stone.

[0011] Preferably, the top of the fixed cylinder is provided with a water spraying pipe, and a plurality of water distribution pipes penetrating through the top of the fixed cylinder are arranged on the water spraying pipe.

[0012] Preferably, the frame is provided with a lower hopper located at the bottom of the fixed cylinder and the screen cylinder, the lower hopper is provided with a partition plate, and the partition plate is located below the spacing between the fixed cylinder and the screen cylinder.

[0013] Preferably, the screen strips and the brushes are in a spiral shape; a first spiral material guiding channel is formed between adjacent two screen strips, and a second spiral material guiding channel is formed between adjacent two brushes.

[0014] Preferably, the connecting frame is mounted with an upper hopper, and the discharge end of the upper hopper extends into the feed inlet of the screen cylinder.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the stone shaping machine has the following beneficial effects: the stone is fed into the screen cylinder, the first motor drives the rotating shaft and the screen cylinder to rotate at a high speed, the centrifugal force of the screen cylinder on the stone is greater than the weight of the stone itself, the stone moves between the screen strips, the edge of the stone is exposed between the two screen strips and contacts the outer wall of the grinding roller, the edge of the stone is ground by the grinding roller, then the rotating speed of the first motor is reduced, the screen cylinder is slowed down, the weight of the stone is greater than the centrifugal force, the stone falls to the bottom of the screen cylinder, and the stone moves along the radial direction of the screen cylinder and moves out of the screen cylinder, the impact force and the friction force of the stone when contacting the grinding roller only cause damage to the edge of the stone, without causing excessive damage to the whole stone, improving the stone shaping effect, reducing the further breakage of the stone, and ensuring that the particle size of the stone is basically unchanged, under the screening effect of the screen cylinder, qualified stones are left in the screen cylinder, small particle size stones and broken stones are directly screened out, the stones and the broken stones are separated, and the stones are in a dispersed state in the screen cylinder, so that the equipment is not jammed by the stones. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 is a top view structure schematic view of the utility model;

[0019] Figure 3 is the utility model's Figure 2 A-A section structure schematic view in;

[0020] Figure 4 is the utility model's Figure 3 B-B section structure schematic view in;

[0021] In the drawing, mark: 1, rack;2, rotating shaft;3, screen cylinder;4, first motor;5, ring frame;6, grinding roller;7, screen bar;8, connecting frame;9, second motor;10, fixed cylinder;11, screen hole;12, brush;13, shower pipe;14, water distribution pipe;15, lower hopper;16, spacing plate;17, upper hopper. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4 The utility model discloses a stone shaping machine, including rack 1, rotating installation on rack 1 rotating shaft 2, fixed installation on rotating shaft 2 screen cylinder 3 and shaping mechanism, install first motor 4 on rack 1 for the rotating power of rotating shaft 2, shaping mechanism includes the ring frame 5 of the screen cylinder 3 both ends and with rack 1 fixed connection and installs multiple grinding roller 6 between two ring frames 5, grinding roller 6 is around the screen cylinder 3 outer wall circumferential arrangement, screen cylinder 3 is equipped with multiple groups of circumferential distribution screen bar 7, and the interval is left between two adjacent screen bars 7;Further, first motor 4 adopts speed regulating motor, and the interval between two adjacent screen bars 7 allows stone edge ridge to pass through.

[0025] Specifically, please refer to Figure 3 Connecting frame 8 is installed with upper hopper 17, and the discharge end of upper hopper 17 extends to the feed inlet of screen cylinder 3.

[0026] Specifically, please refer to Figure 1 Or Figure 3The grinding roller 6 is rotatably installed on the ring frame 5, the ring frame 5 is fixedly installed with a connecting frame 8, and the connecting frame 8 is fixedly installed with a second motor 9 for providing power for the rotation of each grinding roller 6; further, one end of the grinding roller 6 is fixedly installed with a driven sprocket, and the output end of the second motor 9 is installed with a driving sprocket, and the driving sprocket and the driven sprocket are connected through a chain transmission.

[0027] The stone shaping machine provided by the embodiment can improve the convenience of feeding the stone through the feeding hopper 17 to the screen cylinder 3, and under the action of the feeding hopper 17, the stone enters the screen cylinder 3 in a dispersed state, avoiding the stone from entering the screen cylinder 3 in a concentrated manner; when the screen cylinder 3 rotates at a high speed, the second motor 9 drives each grinding roller 6 to rotate, and the rotating direction of the grinding roller 6 is opposite to the rotating direction of the screen cylinder 3, so as to improve the speed difference between the screen cylinder 3 and the grinding roller 6, thereby improving the impact force at the edge ridge of the stone on the grinding roller 6, which is beneficial to the flattening of the edge ridge of the stone, and under the action of the impact force, the stone moves irregularly in the screen cylinder 3, so that the stones collide with each other, and the sharp points and edge ridges on the stones are further removed in the process of collision.

[0028] Embodiment 2

[0029] The stone shaping machine provided by the embodiment is further optimized, and specific reference can be made to Figure 3 ; the fixed cylinder 10 is installed on the rack 1, the middle and lower parts of the fixed cylinder 10 are provided with uniformly distributed screen holes 11, the rotating shaft 2 extends to the fixed cylinder 10 and is installed with a plurality of brushes 12, a spacing allowing the stone to pass through is left between the adjacent two brushes 12, and the fixed cylinder 10 is rotatably connected with the screen cylinder 3; further, the plurality of brushes 12 are enclosed in a cylindrical body shape; the diameter of the screen hole 11 is greater than the spacing between the two adjacent screen strips 7, and the spacing between the two adjacent brushes 12 is at least 10 cm, so as to ensure that the stone can pass through.

[0030] Specific reference can be made to Figure 3 ; the top of the fixed cylinder 10 is provided with a water spraying pipe 13, and the water spraying pipe 13 is provided with a plurality of water distribution pipes 14 penetrating through the top of the fixed cylinder 10.

[0031] Specific reference can be made to Figure 1 ; the rack 1 is provided with a lower hopper 15 located at the bottom of the fixed cylinder 10 and the screen cylinder 3, the lower hopper 15 is provided with a spacing plate 16, and the spacing plate 16 is located below the spacing position between the fixed cylinder 10 and the screen cylinder 3.

[0032] Specific reference can be made to Figure 3 ; the screen strips 7 and the brushes 12 are in a spiral shape; the first spiral material guiding channel is formed between the adjacent two screen strips 7, and the second spiral material guiding channel is formed between the adjacent two brushes 12.

[0033] The stone shaping machine provided by the embodiment can realize the cleaning and further screening of the stone, and ensure that the stone has uniform particle size and is free of dirt. The discharge hopper 15 can receive the stone, so as to avoid the dispersion of the stone to the lower side of the shaping machine, and facilitate the subsequent centralized removal of the stone. The spacer plate 16 can prevent the mixed qualified stone and the crushed stone from being mixed again. In another embodiment, the discharge end of the fixed cylinder 10 is lower than the feeding end of the sieve cylinder 3, so as to further improve the discharge smoothness of the stone in the sieve cylinder 3 or the fixed cylinder 10.

[0034] In use, the stone is placed into the sieve cylinder 3 through the feeding hopper 17. The first motor 4 drives the rotating shaft 2 and the sieve cylinder 3 to rotate at a high speed. The centrifugal force of the stone in the sieve cylinder 3 is greater than the gravity of the stone itself. The stone moves between the sieve bars 7. The edge of the stone is exposed between the two sieve bars 7 and contacts the outer wall of the grinding roller 6. The second motor 9 drives the grinding roller 6 to rotate. The grinding roller 6 grinds the edge of the stone. Under the impact force of the grinding roller 6, the stone moves irregularly in the sieve cylinder 3, so as to fully grind the edge of the stone. Then, the rotating speed of the first motor 4 is reduced, and the rotating speed of the sieve cylinder 3 is reduced. The gravity of the stone is greater than the centrifugal force. The stone falls to the bottom of the sieve cylinder 3. Under the action of the first spiral guide channel, the stone moves along the radial direction of the sieve cylinder 3 and is removed from the sieve cylinder 3. The stone is fully cleaned by the brush 12 and the water in the fixed cylinder 10. The qualified particle size stone falls to the discharge hopper 15 through the sieve hole 11, and the shaping, screening and cleaning of the stone are completed.

[0035] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like in the specification represent that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.

[0036] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A stone shaper characterized by comprising: The utility model provides a stone screening machine, including frame (1), rotatory installation frame (1) on the rotating shaft (2), fixed installation rotating shaft (2) on the screen cylinder (3) and shaping mechanism, first motor (4) is installed on frame (1) for the rotating shaft (2) rotation provides power, shaping mechanism includes the ring frame (5) of setting to the both ends of screen cylinder (3) and with frame (1) fixed connection and installs a plurality of grinding roller (6) between two ring frames (5), grinding roller (6) is circumferentially arranged around the outer wall of screen cylinder (3), a plurality of groups of circumferentially distributed screen bars (7) are equipped on screen cylinder (3), and the interval is left between two adjacent screen bars (7).

2. Stone shaper according to claim 1, characterized in that, Grinding roller (6) is rotatory installation on ring frame (5), and connecting frame (8) is fixedly installed on ring frame (5), and second motor (9) for the rotation of each grinding roller (6) is fixedly installed on connecting frame (8).

3. Stone shap ing machine according to claim 2, characterized in that Fixed cylinder (10) is installed on frame (1), and the middle lower part of fixed cylinder (10) is equipped with screen hole (11) uniformly, and a plurality of brushes (12) are installed on the extension of rotating shaft (2) to fixed cylinder (10), and the interval allowing stone to pass through is left between two adjacent brushes (12), and fixed cylinder (10) is rotatory connected with screen cylinder (3).

4. Stone shap ing machine according to claim 3, characterized in that The top of fixed cylinder (10) is equipped with water spraying pipe (13), and a plurality of water distribution pipes (14) are equipped on water spraying pipe (13) and pass through the top of fixed cylinder (10).

5. Stone shap ing machine according to claim 3, characterized in that, Lower hopper (15) is equipped on frame (1) and located at the bottom of fixed cylinder (10) and screen cylinder (3), and interval plate (16) is equipped on lower hopper (15), and interval plate (16) is located below the interval place of fixed cylinder (10) and screen cylinder (3).

6. Stone shap ing machine according to claim 3, characterized in that Screen bar (7) and brush (12) are all helical, and first helical material guiding passage is formed between two adjacent screen bars (7), and second helical material guiding passage is formed between two adjacent brushes (12).

7. The stone shapmg machine of claim 2, wherein, Upper hopper (17) is installed on connecting frame (8), and the discharge end of upper hopper (17) extends to the inlet of screen cylinder (3).

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