Feeding device for artificial stone preparation

Abstract

The feeding device comprises a machine base, a control device, a double-screw feeding device located above the machine base and a temporary storage bin used for being arranged at a feeding port of artificial stone extrusion equipment, a discharging port is formed in the bottom of the temporary storage bin, and a connection port is formed in the side wall of the temporary storage bin; the double-screw feeding device comprises a horizontally mounted feeding bin, two spiral shafts which are rotatably mounted in the feeding bin and are provided with spiral blades, and a driving device which is in power connection with the spiral shafts, and the driving device is electrically connected with the control device; a feeding port is formed in the top of the feeding bin and connected with a stocker used for loading artificial stone raw materials, a discharging port is formed in the end, away from the driving device, of the feeding bin, and a connecting pipe assembly is connected between the discharging port and the connecting port. Modular design is adopted, the feeding continuity is improved, installation, debugging and later maintenance are convenient, the use flexibility of equipment is improved, and the artificial stone feeding device is suitable for a continuous and automatic artificial stone production line.

Description

Technical Field

[0001] This invention relates to the field of artificial stone production equipment technology, and in particular to a feeding device for artificial stone preparation. Background Technology

[0002] Currently, artificial stone, as a common building decoration material, is typically manufactured using extrusion molding. A feeding device is usually installed before the extrusion equipment to transport the raw materials to the inlet. Existing feeding devices often suffer from the following problems: uneven feeding, susceptibility to material blockage, complex structure, inconvenient maintenance, difficulty in real-time monitoring of remaining raw materials, and the need for frequent feeding, all of which affect production efficiency and product quality.

[0003] Some existing devices use a single screw feeding method, which has limited conveying capacity and is prone to accumulation or material interruption during the feeding process. In addition, the connection between the feeding device and the extrusion equipment is often fixed, making it inconvenient to disassemble, clean, or replace parts.

[0004] Therefore, it is necessary to provide a feeding device for the preparation of artificial stone that has a reasonable structure, stable material supply, is easy to maintain, and has intelligent monitoring function. Summary of the Invention

[0005] The purpose of this invention is to provide a feeding device for the preparation of artificial stone, which solves the problems of unstable feeding, inconvenient connection, and insufficient monitoring of raw material supply in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feeding device for artificial stone preparation includes a base, a control device, a twin-screw feeding device located above the base, and a buffer hopper for use at the inlet of an artificial stone extrusion device. The bottom of the buffer hopper has a discharge port, and the side wall of the buffer hopper has a connection port. The twin-screw feeding device includes a horizontally installed feeding hopper, two spiral shafts with spiral blades rotatably installed inside the feeding hopper, and a drive device poweredly connected to the spiral shafts. The drive device is electrically connected to the control device. The top of the feeding hopper has an inlet, which is connected to a storage container for loading artificial stone raw materials. The end of the feeding hopper away from the drive device has an outlet, and a connection pipe assembly connects the outlet and the connection port.

[0008] Furthermore, an observation port is provided on the side of the buffer hopper away from the connection port, and the observation port is equipped with a transparent baffle to facilitate operators to observe the internal material status.

[0009] Furthermore, the driving device includes a driving wheel, a driven wheel, a transmission belt, and a driving motor with a reducer. The driving motor is mounted on a base, and meshing gears are installed at the ends of the two helical shafts. The driven wheel is connected to one of the helical shafts, the driving wheel is connected to the output end of the reducer, and the transmission belt is connected between the driving wheel and the driven wheel.

[0010] Furthermore, the spiral blades on the two spiral shafts are set in opposite directions to improve the uniformity and efficiency of material delivery.

[0011] Furthermore, the connecting pipe assembly includes a guide pipe, one end of which is inserted into the connecting port and extends into the interior of the buffer hopper. The other end of the guide pipe is provided with a first assembly plate, and the end of the feeding hopper near the guide pipe is provided with a second assembly plate corresponding to the position of the first assembly plate. A quick-release locking mechanism is connected between the first assembly plate and the second assembly plate.

[0012] Furthermore, the quick-release locking mechanism includes a threaded rod and a nut mounted on the threaded rod. One end of the threaded rod is rotatably connected to the second assembly plate via a rotating shaft. The first assembly plate has a notch for embedding the threaded rod.

[0013] Furthermore, the cross-sectional area of ​​the feed tube gradually decreases from the side near the discharge port to the side near the connection port, forming a tapered structure, which is conducive to smooth material transport and reduces residue.

[0014] Furthermore, the feed tube is composed of a first tube body and a second tube body, with a locking sleeve connecting the first tube body and the second tube body. The outer wall of the first tube body near the second tube body has an external thread section, and the outer wall of the second tube body near the first tube body has a first annular protrusion. The inner wall of one end of the locking sleeve has a second annular protrusion for abutting against the first annular protrusion. The inner wall of the other end of the locking sleeve has an internal thread section that connects and mates with the external thread section. The outer wall of the locking sleeve has several levers for easy manual tightening or loosening.

[0015] Furthermore, the storage device is a hollow, vertically distributed cylindrical structure, and a feeding hopper is provided at the top of the storage device.

[0016] Furthermore, the lower part of the inner cavity of the storage device is provided with a detection sensor for monitoring the remaining amount of artificial stone raw materials. The detection sensor is electrically connected to the control device, and the control device is also connected to an alert device.

[0017] Compared with the prior art, the present invention provides a feeding device for the preparation of artificial stone, which has the following beneficial effects:

[0018] (1) The present invention adopts a twin-screw feeding device with the spiral blades arranged in opposite directions, which pushes the material evenly and stably, avoids material blockage or interruption, and improves the continuity of material supply.

[0019] (2) By setting a buffer silo at the feed inlet of the artificial stone extrusion equipment, the present invention can buffer and store the input raw materials, which is conducive to continuous and stable feeding. The buffer silo is equipped with an observation port and a transparent baffle, which also facilitates real-time observation of the material status and timely detection of problems.

[0020] (3) The present invention connects the feed bin and the buffer bin by setting a connecting pipe assembly, and the connecting pipe assembly adopts a quick-install locking mechanism, which is convenient for disassembly, cleaning and maintenance, and improves the flexibility of equipment use; at the same time, the guide pipe adopts a tapered structure, which also reduces material residue and improves conveying efficiency.

[0021] (4) By setting a detection sensor in the storage container and using an alarm device, the present invention can realize automatic monitoring and alarm of the remaining amount of raw materials, thereby reducing the frequency of manual inspection;

[0022] (5) The overall structure of the present invention is reasonable and adopts a modular design, which facilitates installation, debugging and subsequent maintenance, and is suitable for continuous and automated artificial stone production lines. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall assembly of one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the buffer hopper according to one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram showing the connection of the connecting pipe assembly and the twin-screw feeding device according to one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the assembly of the feed pipe and the feed bin according to one embodiment of the present invention;

[0029] Figure 6This is a schematic diagram of the material guide tube according to one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the use of one embodiment of the present invention.

[0031] Reference numerals: 1. Base; 11. First protective cover; 111. Heat dissipation hole; 12. Second protective cover; 13. Support foot; 2. Control device; 21. Detection sensor; 22. Alert device; 3. Twin-screw feeding device; 31. Feed bin; 311. Inlet; 312. Outlet; 313. Second assembly plate; 32. Screw shaft; 321. Screw blade; 33. Drive device; 331. Drive wheel; 332. Driven wheel; 333. Transmission belt; 334. Drive motor; 335. Gear; 4. Buffer bin; 41. Discharge port; 42. 43. Connection port; 44. Observation port; 5. Transparent baffle; 6. Storage container; 7. Feeding hopper; 8. Connection pipe assembly; 9. Guide pipe; 10. First assembly plate; 11. Notch; 12. First pipe body; 13. External threaded section; 14. Second pipe body; 15. First annular convex ring; 16. Locking sleeve; 17. Second annular convex ring; 18. Internal threaded section; 19. Lever; 20. Quick-release locking mechanism; 21. Threaded rod; 22. Nut; 23. Rotating shaft; 44. Artificial stone extrusion equipment; 5. Feed port. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The present invention will now be described in further detail through detailed embodiments and in conjunction with the accompanying drawings.

[0038] Example 1

[0039] Please refer to Figures 1-7This embodiment provides a feeding device for artificial stone preparation, including a base 1, a control device 2, a twin-screw feeding device 3 located above the base 1, and a buffer hopper 4 installed at the feed inlet 71 of the artificial stone extrusion equipment 7. The buffer hopper 4 can buffer and store the input raw materials, which is conducive to continuous and stable feeding, ensuring continuous production, continuous product output, and improving production efficiency. The bottom of the buffer hopper 4 is provided with a discharge port 41, and the side wall of the buffer hopper 4 is provided with a connection port 42. The twin-screw feeding device 3 includes a horizontally installed feeding hopper 31, two parallel and rotatably installed screw shafts 32 with screw blades 321 inside the feeding hopper 31, and a drive device 33 poweredly connected to the screw shafts 32. The drive device 33 is electrically connected to the control device 2. The top of the feeding hopper 31 is provided with a feed inlet 311, and the feed inlet 311 is connected to a storage container 5 for loading artificial stone raw materials. The end of the feeding bin 31 away from the drive unit 33 is provided with a discharge port 312. A connecting pipe assembly 6 is connected between the discharge port 312 and the connection port 42. In this way, the base 1 can be placed next to the artificial stone extrusion equipment 7 and the feeding bin 31 can be connected to the buffer bin 4 fixed on the artificial stone extrusion equipment 7 by using the connecting pipe assembly 6, which greatly improves the flexibility of equipment use.

[0040] In this embodiment, as Figure 1 As shown, the storage container 5 is a hollow, vertically distributed cylindrical structure capable of temporarily storing large quantities of artificial stone raw materials. The upper part of the storage container 5 is equipped with a feeding hopper 51 for replenishing the storage container with artificial stone raw materials. Specifically, the feeding hopper 51 is in the shape of an inverted truncated pyramid, facilitating material feeding and reducing material splashing.

[0041] refer to Figures 1-3 To facilitate operators' observation of the internal material status, an observation port 43 is provided on the side of the buffer silo 4 away from the connection port 42, and a transparent baffle 44 is installed in the observation port 43. Specifically, the transparent baffle 44 is fixedly connected to the buffer silo 4 with bolts, allowing for easy disassembly and cleaning of the transparent baffle 44. The transparent baffle 44 can be made of transparent glass or transparent plastic materials such as PMMA, PC, and PP.

[0042] In this embodiment, as Figure 2As shown, the drive device 33 includes a drive wheel 331, a driven wheel 332, a transmission belt 333, and a drive motor 334 with a reducer. The drive motor 334 is mounted on the base 1. Meshing gears 335 are installed at the ends of the two spiral shafts 32. The driven wheel 332 is connected to one of the spiral shafts 32. The drive wheel 331 is connected to the output end of the reducer. The transmission belt 333 connects the drive wheel 331 and the driven wheel 332. The drive motor 334 drives the drive wheel 331 to rotate via the reducer, and then drives the driven wheel 332 to rotate via the transmission belt 333, thereby driving the spiral shafts 32 to rotate. The spiral blades 321 on the two spiral shafts 32 are arranged in opposite directions, which can improve the uniformity and efficiency of material feeding.

[0043] Specifically, such as Figure 1 and Figure 2 As shown, the base 1 is provided with a first protective cover 11 for covering the drive motor 334 and a second protective cover 12 for covering the driven wheel 332 and the gear 335. Both the first protective cover 11 and the second protective cover 12 are made of several stainless steel plates spliced ​​together. In order to improve the heat dissipation effect, several heat dissipation holes 111 are provided on the side wall of the first protective cover 11.

[0044] In this embodiment, reference Figure 1 , Figure 2 , Figures 4-6 The connecting pipe assembly 6 includes a guide pipe 61. One end of the guide pipe 61 is inserted into the connecting port 42 and extends into the interior of the buffer hopper 4. The other end of the guide pipe 61 is provided with a first mounting plate 611. The end of the feeding hopper 31 near the guide pipe 61 is provided with a second mounting plate 313 corresponding to the position of the first mounting plate 611. A quick-release locking mechanism 62 connects the first mounting plate 611 and the second mounting plate 313, facilitating disassembly, cleaning, and maintenance, and improving the flexibility of equipment use. Specifically, such as... Figure 4 and Figure 5 As shown, there are two quick-release locking mechanisms 62, symmetrically distributed. Each quick-release locking mechanism 62 includes a threaded rod 621, a nut 622 mounted on the threaded rod 621, and a washer. One end of the threaded rod 621 is rotatably connected to the second assembly plate 313 via a pivot 623. The first assembly plate 611 has a notch 6111 for inserting the threaded rod 621. The notch 6111 is U-shaped. During assembly, the threaded rod 621 is rotated and inserted into the notch 6111; tightening the nut 622 quickly and securely connects the guide tube 61 to the feeding bin 31.

[0045] Preferred, such as Figure 4 As shown, the cross-sectional area of ​​the feed pipe 61 gradually decreases from the side near the discharge port 312 to the side near the connection port 42, forming a tapered structure, which facilitates smooth material transport and reduces residue.

[0046] In this embodiment, as Figure 1 As shown, the bottom of the base 1 is also provided with four height-adjustable support feet 13, which can be adjusted by threads to facilitate the adjustment of the device level and adapt to different equipment installation heights.

[0047] Example 2

[0048] like Figures 1-6 As shown, based on Embodiment 1, this embodiment further optimizes the structure of the guide tube 61. By adopting a split splicing structure design for the guide tube 61, it is easier to disassemble, clean, or replace the guide tube 61 in sections, thus improving maintenance convenience.

[0049] For details, please refer to Figure 4 and Figure 6 The feed tube 61 is composed of a first tube body 612 and a second tube body 613 joined together. A locking sleeve 614 connects the first tube body 612 and the second tube body 613. The outer wall of the first tube body 612 near the second tube body 613 has an external thread section 6121, and the outer wall of the second tube body 613 near the first tube body 612 has a first annular protrusion 6131. ​​The inner wall of one end of the locking sleeve 614 has a second annular protrusion 6141 for abutting against the first annular protrusion 6131, and the inner wall of the other end of the locking sleeve 614 has an internal thread section 6142 that connects and mates with the external thread section 6121. The outer wall of the locking sleeve 614 has several levers 6143 for easy manual tightening or loosening. During installation, the first annular convex ring 6131 is abutted against the second annular convex ring 6141, the lever 6143 is moved and the locking sleeve 614 is tightened, so that the internal thread section 6142 and the external thread section 6121 are locked together, thereby achieving a tight connection between the two pipe bodies.

[0050] Example 3

[0051] Based on Example 1 or 2, this example further adds a raw material monitoring function.

[0052] For details, please refer to Figure 1 , Figure 2 and Figure 7The lower part of the inner cavity of the storage tank 5 is equipped with a detection sensor 21 for monitoring the remaining amount of artificial stone raw materials. The detection sensor 21 is electrically connected to the control device 2, which is also connected to an alarm device 22. The detection sensor 21, in conjunction with the alarm device 22, enables automatic monitoring and alarm of the remaining raw material amount, reducing the frequency of manual inspections and improving automation and intelligence. As an example, the alarm device 22 is an audible and visual alarm. The detection sensor 21 can be a conventional photoelectric sensor. When the height of the artificial stone raw materials in the storage tank 5 is higher than the detection sensor 21, the detection sensor 21 is not triggered. As the height of the artificial stone raw materials in the storage tank 5 decreases, when the artificial stone raw materials are consumed to a height lower than the detection sensor 21, the detection sensor 21 is triggered, thereby activating the alarm device 22 and prompting workers to replenish the artificial stone raw materials in a timely manner, avoiding disruption to production continuity due to material shortages.

[0053] It should be noted that, based on any of the above embodiments, the control device 2 can adopt a PLC controller or a single-chip microcomputer system, and integrate a touch screen operation interface to realize centralized control and status display of the drive motor 334 speed, detection sensor 21 signal, alarm prompts, etc., further improving the automation and intelligence level of the equipment.

[0054] Working principle explanation: Figure 7 As shown, the buffer hopper 4 is fixedly installed at the feed inlet 71 of the artificial stone extrusion equipment 7 using bolts. During operation, artificial stone raw materials are fed into the storage tank 5 from the feeding hopper 51 and fall into the feeding bin 31. The drive motor 334 drives two screw shafts 32 to rotate in opposite directions through the transmission mechanism, pushing the raw materials evenly to the discharge port 312, and then into the buffer hopper 4 through the guide pipe 61, and finally stably supplied to the artificial stone extrusion equipment 7 from the discharge port 41. The material status in the buffer hopper 4 can be viewed in real time through the observation port 43; the material shortage alarm is realized through the detection sensor 21; and the quick-release locking mechanism 62 facilitates the disassembly and maintenance of the connecting pipe assembly 6.

[0055] The present invention has a reasonable overall structure and modular design, which facilitates installation, debugging and subsequent maintenance, and is suitable for continuous and automated artificial stone production lines.

[0056] The above embodiments are merely illustrative of the concept and technical solution of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for the preparation of artificial stone, comprising a base, a control device, a double screw feeding device located above the base and a buffer bin for being arranged at the inlet of an artificial stone extrusion plant, characterized in that, The bottom of the buffer bin is provided with a discharge port, and the sidewall of the buffer bin is provided with a connecting port; the double-screw feeding device comprises a horizontally-installed feeding bin, two helical shafts with helical blades rotatably installed in the feeding bin, and a driving device connected with the helical shafts in power, wherein the driving device is electrically connected with the control device; the top of the feeding bin is provided with a feeding port, and the feeding port is connected with a storage device for loading artificial stone raw materials; the end of the feeding bin away from the driving device is provided with a discharge port, and the discharge port is connected with the connecting port through a connecting pipe assembly.

2. The charging device for artificial stone production according to claim 1, characterized in that, An observation port is formed on the side of the buffer bin away from the connecting port, and the observation port is provided with a transparent baffle.

3. The charging device for artificial stone preparation according to claim 1, characterized in that, The driving device comprises a driving wheel, a driven wheel, a transmission belt, and a driving motor with a speed reducer, the driving motor is installed on a base, the ends of the two helical shafts are respectively provided with meshing gears, the driven wheel is connected with one of the helical shafts, the driving wheel is connected with the output end of the speed reducer, and the transmission belt is connected between the driving wheel and the driven wheel.

4. The charging device for artificial stone production according to claim 3, characterized in that, The helical directions of the helical blades on the two helical shafts are oppositely arranged.

5. The charging device for artificial stone preparation according to claim 1, characterized in that, The connecting pipe assembly comprises a material guide pipe, one end of the material guide pipe is insertedly connected with the connecting port and extends into the interior of the buffer bin, the other end of the material guide pipe is provided with a first assembly plate, one end of the feeding bin close to the material guide pipe is provided with a second assembly plate corresponding in position to the first assembly plate, and a quick-assembly locking mechanism is connected between the first assembly plate and the second assembly plate.

6. The charging device for artificial stone production according to claim 5, characterized in that, The quick-assembly locking mechanism comprises a threaded rod and a nut installed on the threaded rod, one end of the threaded rod is rotatably connected with the second assembly plate through a rotating shaft, and the first assembly plate is formed with a gap for embedding the threaded rod.

7. The charging device for artificial stone production according to claim 5, characterized in that, The cross-sectional area of the material guide pipe gradually decreases from the side close to the discharge port to the side close to the connecting port.

8. The charging device for artificial stone production according to claim 7, characterized in that, The material guide pipe is spliced by a first pipe body and a second pipe body, a lock sleeve is connected between the first pipe body and the second pipe body, an external thread section is arranged on the outer wall of one end of the first pipe body close to the second pipe body, a first annular convex ring is arranged on the outer wall of one end of the second pipe body close to the first pipe body, a second annular convex ring for abutting against the first annular convex ring is arranged on the inner wall of one end of the lock sleeve, an internal thread section for connecting and matching with the external thread section is arranged on the inner wall of the other end of the lock sleeve, and a plurality of lever rods are arranged on the outer wall of the lock sleeve.

9. The charging device for artificial stone production according to any one of claims 1 to 8, characterized in that, The storage device is a hollow vertically-distributed cylinder structure, and the upper portion of the storage device is provided with a feeding hopper.

10. The charging device for artificial stone production according to claim 9, characterized in that, A detection sensor for monitoring the remaining amount of artificial stone raw materials is arranged on the lower portion of the inner cavity of the storage device, the detection sensor is electrically connected with the control device, and the control device is further connected with a reminding device.

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