Raw material screening device for thermal insulation material production

Abstract

The raw material screening device comprises a screening box, two screening boxes are arranged in an inner cavity of the screening box at intervals from top to bottom, the side faces of top plates of the two screening boxes make sliding contact with the inner wall of the screening box, the top faces of the two screening boxes are open, and the bottom faces of the two screening boxes are fixedly connected with screens. The two screens are obliquely arranged in opposite directions, and the aperture of the upper screen is larger than that of the lower screen; a vibration mechanism is arranged between the two screening boxes and used for driving the two screening boxes to vibrate at the same time. By means of the two screening boxes, large-particle-size heat preservation raw materials can be screened out, and meanwhile small-particle raw materials and impurities can be screened out, so that the uniformity of the particle size of the raw materials is guaranteed, and the production quality of the heat preservation materials is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation material production technology, and in particular to a raw material screening device for thermal insulation material production. Background Technology

[0002] Thermal insulation materials are materials or composites used to slow down heat flow. They are characterized by their lightweight, porous structure, and low thermal conductivity. During the production of thermal insulation materials, raw material screening devices are required to effectively separate raw materials of different particle sizes, ensuring that the raw materials entering the production process are of uniform particle size and free of impurities. This guarantees the quality stability and production efficiency of the thermal insulation materials. Screening also optimizes the utilization rate of raw materials, reduces waste, and lowers production costs.

[0003] Existing raw material screening devices for thermal insulation material production can only screen raw materials once, failing to simultaneously remove larger particles, smaller particles, and impurities. This results in uneven particle size and the presence of impurities, further impacting the production quality of the thermal insulation material. For example, utility model patent No. 202323367439.1 discloses a raw material screening device for thermal insulation material production. This device uses a motor to rotate, sequentially driving a first transmission wheel, a transmission belt, and a second transmission wheel. When the first and second transmission wheels rotate, they drive a rotating rod at the output end and a protrusion mounted above the rotating rod. The rotation of the protrusion pushes an upper connecting block, connecting rod, and screen upwards. A spring, compressed, pushes the screen downwards, creating a continuous cycle that causes the screen to vibrate and screen.

[0004] However, in actual use, the aforementioned utility model patent only uses a single sieve to screen the raw materials, which can only remove larger particles and cannot remove smaller particles and impurities. This results in the presence of impurities and smaller particles in the raw materials, affecting the uniformity of particle size and consequently impacting...

[0005] This affects the production quality of thermal insulation materials.

[0006] Therefore, it is necessary to develop a raw material screening device for the production of thermal insulation materials to address the above-mentioned shortcomings. Utility Model Content

[0007] The purpose of this invention is to provide a raw material screening device for the production of thermal insulation materials, which can screen out large-particle thermal insulation material raw materials while screening out small-particle raw materials and impurities, thereby ensuring the uniformity of raw material particle size and improving the production quality of thermal insulation materials.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model discloses a raw material screening device for the production of thermal insulation materials, including a screening box. Two screening boxes are arranged at intervals from top to bottom inside the screening box. The top plates of the two screening boxes slide in contact with the inner wall of the screening box. The top surfaces of the two screening boxes are open and the bottom surfaces are fixedly connected with screens. The two screens are inclined in opposite directions, and the aperture of the upper screen is larger than that of the lower screen. A vibration mechanism is provided between the two screening boxes to drive the two screening boxes to vibrate simultaneously.

[0010] Furthermore, the vibration mechanism includes compression springs fixedly connected to the four corners of the bottom surface of the top plates of the two screening boxes. Support plates are provided at the lower ends of both screening box top plates, and the support plates are fixedly connected to the inner wall of the screening box. The top surface of the support plates is fixedly connected to the bottom end of the compression springs. Transmission components are fixedly connected to the four corners of the top plates of the two screening boxes. Two rotating shafts are rotatably connected between the two inner walls of the screening box, and the rotating shafts are located at both ends of the inner walls of the screening box. Each rotating shaft is rotatably connected to a cam that cooperates with the transmission component. A driving component is fixedly connected to the outer wall of the screening box, and the driving component is used to drive the two rotating shafts to rotate synchronously.

[0011] Furthermore, the transmission components include a slide rod, a U-shaped seat, and rollers. The outer wall of the top of the U-shaped seat is fixedly connected to one end of the slide rod, and the rollers are rotatably connected between the inner walls of the U-shaped seat. The rollers are configured to contact and cooperate with the cam. The end of the slide rod away from the rollers passes through the support plate and is slidably connected to it. A compression spring is sleeved on the outer wall of the slide rod, and the slide rod is fixedly connected to the screening box.

[0012] Furthermore, the driving component includes a motor, which is fixedly connected to the outer wall of the screening box. Two rotating shafts pass through the outer wall of the screening box at the same end, and synchronous pulleys are coaxially fixedly sleeved on the outer ends of the two rotating shafts. The two synchronous pulleys are connected by a synchronous belt drive. The output end of the motor is coaxially fixedly connected to either rotating shaft.

[0013] Furthermore, both screening boxes have discharge ports on their side walls near the lowest point of the screen. A receiving box is detachably connected to the outer wall of the screening box below the discharge port. A guide plate is fixedly connected to the bottom of the discharge port, and the end of the guide plate away from the discharge port is located above the top opening of the receiving box.

[0014] Furthermore, a pull-out collection box is slidably connected to the bottom of the screening box.

[0015] Furthermore, the top surface of the screening box is fixedly connected to and connected to a feed inlet, which is located directly above the highest point of the screen.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] The utility model discloses a two-stage screening device for raw materials of thermal insulation material production, which comprises a screening box, two screening boxes, a vibrating mechanism and a receiving box.

[0018] In addition, the utility model discloses a vibration mechanism between two screening boxes is provided for simultaneously driving two screening boxes vibration. Can make the raw material on the screen under the action of vibration can better dispersion and separation, improve the efficiency and effect of screening. Meanwhile, the vibration mechanism also reduces the possible jam and adhesion phenomenon in the screening process, ensures the continuity and stability of screening. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in combination with the drawings.

[0020] Fig. 1 It is the three-dimensional structure schematic diagram of raw material screening device for thermal insulation material production of the utility model;

[0021] Fig. 2 It is another perspective three-dimensional structure schematic diagram of raw material screening device for thermal insulation material production of the utility model;

[0022] Fig. 3 It is the three-dimensional mechanism schematic diagram of vibration mechanism of the utility model.

[0023] Figure legend explains: 1, screening box;2, screening box;3, discharge port;4, screen;5, vibration mechanism;501, compression spring;502, support plate;503, pivot;504, cam;505, slide bar;506, U-shaped seat;507, gyro wheel;508, motor;509, synchronous pulley;510, synchronous belt;6, receiving box;7, guide plate;8, material collecting box;9, feed inlet. DETAILED DESCRIPTION

[0024] The core of the utility model provides a raw material screening device for thermal insulation material production, can screen out big granularity thermal insulation material raw material simultaneously, and screen out small particle raw material and magazine, thereby guaranteeing the uniformity of raw material granularity, improve the production quality of thermal insulation material.

[0025] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In a specific embodiment, as shown in Figs. 1-3 The present application discloses a raw material screening device for thermal insulation material production, which comprises a screening box 1, two screening boxes 2 are arranged in the inner cavity of the screening box 1 from top to bottom, the top surface of the two screening boxes 2 is open and the bottom surface is fixedly connected with a screen 4, the two screens 4 are inclined and the inclination directions are opposite, the aperture of the upper screen 4 is larger than that of the lower screen 4; a vibration mechanism 5 is arranged between the two screening boxes 2, and the vibration mechanism 5 is used to drive the two screening boxes 2 to vibrate simultaneously.

[0028] By arranging two screening boxes 2 and corresponding screens 4, multi-stage screening of raw materials for thermal insulation materials is realized, the inclined arrangement and opposite directions of the screens 4 are helpful for the flow and separation of raw materials during screening, and the arrangement of the vibration mechanism 5 can improve the efficiency and effect of screening.

[0029] In a specific embodiment, the vibration mechanism 5 comprises a compression spring 501 fixedly connected at four corners of the top plate of the two screening boxes 2, a support plate 502 is arranged below the two ends of the top plate of the two screening boxes 2, the support plate 502 is fixedly connected with the inner wall of the screening box 1, and the top surface of the support plate 502 is fixedly connected with the bottom end of the compression spring 501; a transmission member is fixedly connected at each of the four corners of the top plate of the two screening boxes 2, two rotating shafts 503 are rotatably connected between the two opposite inner walls of the screening box 1, and the rotating shafts 503 are located at the two ends of the inner wall of the screening box 1; each rotating shaft 503 is rotatably connected with a cam 504 matched with the transmission member, and a driving member is fixedly connected on the outer wall of the screening box 1, and the driving member is used to drive the two rotating shafts 503 to rotate synchronously.

[0030] Specifically, the transmission member includes a slide rod 505, a U-shaped seat 506, and a roller 507. The outer wall of the top end of the U-shaped seat 506 is fixedly connected with one end of the slide rod 505, and the roller 507 is rotatably connected between the inner walls of the U-shaped seat 506. The roller 507 is in contact with the cam 504, one end of the slide rod 505 away from the roller 507 penetrates through the support plate 502 and is slidably connected with the support plate 502, the compression spring 501 is sleeved on the outer wall of the slide rod 505, and the slide rod 505 is fixedly connected with the screening box 2.

[0031] The two rotating shafts 503 are driven to rotate synchronously by the driving member, and the cam 504 also rotates synchronously. The contour of the roller 507 and the cam 504 is in contact, and with the rotation of the cam 504, the roller 507 rolls on the surface of the cam 504

[0032] . Due to the contour design (usually eccentric) of the cam 504, the roller 507 will receive a periodic thrust during rolling. When the roller 507 receives a thrust, the force will be transmitted to the screening box 2 through the U-shaped seat 506 and the slide rod 505, the upper screening box 2 moves upward, the compression spring 501 below the upper screening box 2 returns to the state before being compressed due to the gravity of the screening box 2, and the lower screening box 2 moves downward and compresses the compression spring 501. When the roller 507 is not subjected to a thrust, the compression spring 501 above the upper screening box 2 moves downward and resets under the action of the gravity of the upper screening box 2, and the compression spring 501 below releases the stored elastic potential energy to push the lower screening box 2 upward and reset. This process is repeated continuously, so that the two screening boxes 2 produce periodic vibration in the vertical direction.

[0033] Specifically, the driving member includes a motor 508, the motor 508 is fixedly connected to the outer wall of the screening box 1, the two rotating shafts 503 penetrate the outer wall of the screening box 1 at the same end, the outer ends of the two rotating shafts 503 are coaxially fixedly sleeved with synchronous pulleys 509, and the two synchronous pulleys 509 are drivingly connected by a synchronous belt 510. The output end of the motor 508 is coaxially fixedly connected with any rotating shaft 503.

[0034] Through the rotation of the motor 508, the rotating shaft 503 coaxially fixedly connected with the motor 508 and the synchronous pulley 509 fixedly connected to the rotating shaft 503 can be driven to rotate, and through the action of the synchronous belt 510, the other synchronous pulley 509 can be driven to rotate, thereby driving the other rotating shaft 503 to rotate. The two rotating shafts 503 are driven to rotate synchronously.

[0035] In a specific embodiment, the two screening boxes 2 are provided with discharge ports 3 on the side walls close to the lowest part of the screen 4, a receiving box 6 is detachably connected to the outer wall of the screening box 1 below the discharge port 3, a guide plate 7 is fixedly connected to the bottom end of the discharge port 3, and the end of the guide plate 7 away from the discharge port 3 is located above the top opening of the receiving box 6.

[0036] Through cooperation of the discharge port 3, the material receiving box 6 and the guide plate 7, the collection and classification of the raw materials are realized.

[0037] In an embodiment, the bottom of the screening box 1 is slidingly connected with a pull-out type material collecting box 8.

[0038] Through the setting of the pull-out type material collecting box 8, the fine particles and impurities at the screening position can be conveniently collected and cleaned.

[0039] In an embodiment, the top surface of the screening box 1 is fixedly connected and communicated with a feeding port 9, and the feeding port 9 is arranged directly above the highest position of the screen 4 on one side.

[0040] Through the feeding port 9, the raw materials of the insulation materials required to be screened can be put into the screening box 1, and through the arrangement of the feeding port 9 directly above the highest position of the screen 4, the screening area of the screen 4 can be maximized, and when the raw materials fall from the high position, they will gradually disperse along the inclined direction of the screen 4 and be subjected to the screening effect of the screen 4.

[0041] The working principle of the utility model is: when the raw material screening device for insulation material production is used, first, the raw materials of the insulation materials required to be screened are put into the screening box 1 through the feeding port 9. The raw materials first fall onto the screen 4 in the screening box 1 and are moved from the higher end to the lower end of the screen 4 in the screening box 2, the raw materials with smaller particle size pass through the screen 4 and fall into the screening box 2 below, and the raw materials with larger particle size move on the screen 4 and fall into the material receiving box 6 above the screening box 1 through the guide plate 7. The raw materials in the screening box 1 are screened again through the screen 4 below, the raw materials with smaller particle size and impurities are screened out and collected through the material collecting box 8, and the raw materials that cannot pass through the screen 4 fall into the material receiving box 6 below the screening box 1 through the discharge port 3 after twice screening, so that the screening precision is greatly improved, and the impurities and uneven particle size in the raw materials are reduced.

[0042] During the screening process, the motor 508 is turned on. The rotation of the motor 508 drives the coaxially fixed rotating shaft 503 and the synchronous pulley 509 fixed on the rotating shaft 503 to rotate. Through the action of the synchronous belt 510, another synchronous pulley 509 is driven to rotate, thereby driving another rotating shaft 503 to rotate, thus driving the two rotating shafts 503 to rotate synchronously. The cam 504 also rotates synchronously with the rotating shaft 503. At the point where the roller 507 and the cam 504 meet, the roller 507 rolls on the surface of the cam 504 as the cam 504 rotates. The roller 507 receives periodic thrust during rolling. When the roller 507 receives thrust, the force is transmitted to the screening box 2 through the U-shaped seat 506 and the slide rod 505. The upper screening box 2 moves upward, causing the compression spring 501 below to...

[0043] Returning to its state before being compressed by gravity, the lower screening box 2 moves downward and compresses the compression spring 501. When the roller 507 is no longer pushed, the upper compression spring 501 moves downward and resets under the gravity of the upper screening box 2, while the lower compression spring 501 releases its stored elastic potential energy, pushing the lower screening box 2 upward and resetting. This process repeats continuously, causing the two screening boxes 2 to vibrate periodically in the vertical direction. This allows the raw materials on the screen 4 to be better dispersed and separated under the action of vibration, improving the efficiency and effect of screening. At the same time, the vibration mechanism 5 also reduces the clogging and adhesion that may occur during the screening process, ensuring the continuity and stability of screening.

[0044] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A raw material screening device for insulation material production, characterized by: The utility model provides a screening box (1), the cavity of screening box (1) is provided with two screening boxes (2) from top to bottom interval, two screening boxes (2) top plate side surface and the inner wall of screening box (1) sliding contact, two screening boxes (2) top surface opening and bottom surface all are fixedly connected with screen (4), two screen (4) are arranged in the slope and the opposite direction of slope, the aperture of screen (4) in the upper is greater than the aperture of screen (4) in the lower, be provided with vibration mechanism (5) between two screening boxes (2), vibration mechanism (5) is used for driving two screening boxes (2) vibration simultaneously, The vibration mechanism (5) includes a compression spring (501) fixedly connected at the four corners of the top plate of the two screening boxes (2), a support plate (502) is arranged below the two ends of the top plate of the two screening boxes (2), the support plate (502) is fixedly connected with the inner wall of the screening box (1), and the top surface of the support plate (502) is fixedly connected with the bottom end of the compression spring (501). Transmission members are fixedly connected to the four corners of the top plate of the two screening boxes (2), two rotating shafts (503) are rotatably connected between the two opposite inner walls of the screening box (1), and the rotating shafts (503) are located at the two ends of the inner wall of the screening box (1). Each rotating shaft (503) is rotatably connected with a cam (504) matched with the transmission member, a driving member is fixedly connected to the outer wall of the screening box (1), and the driving member is used to drive the two rotating shafts (503) to rotate synchronously. The transmission member includes a sliding rod (505), a U-shaped seat (506), and a roller (507), the top end of the U-shaped seat (506) is fixedly connected with one end of the sliding rod (505), and the roller (507) is rotatably connected between the inner walls of the U-shaped seat (506). The roller (507) is in contact with the cam (504), one end of the sliding rod (505) away from the roller (507) penetrates through the support plate (502) and is slidably connected therewith, the compression spring (501) is sleeved on the outer wall of the sliding rod (505), and the sliding rod (505) is fixedly connected with the screening box (2).

2. The raw material screening device for thermal insulation material production according to claim 1, characterized in that: The driving member includes a motor (508) fixedly connected to the outer wall of the screening box (1), the same end of the two rotating shafts (503) penetrates through the outer wall of the screening box (1), the outer ends of the two rotating shafts (503) are coaxially fixedly sleeved with synchronous pulleys (509), and the two synchronous pulleys (509) are drivingly connected by a synchronous belt (510). The output end of the motor (508) is coaxially fixedly connected with any rotating shaft (503).

3. The raw material screening device for thermal insulation material production according to claim 1, characterized in that: Two side walls of the screening boxes (2) close to the lowest part of the screen (4) are each provided with a discharge port (3), a receiving box (6) is detachably connected to the outer wall of the screening box (1) below the discharge port, a guide plate (7) is fixedly connected to the bottom end of the discharge port (3), and one end of the guide plate (7) away from the discharge port (3) is located above the top opening of the receiving box (6).

4. The raw material screening device for thermal insulation material production according to claim 1, characterized in that: The screening box (1) is slidingly connected with a pull-out type aggregate box (8) at the bottom.

5. The raw material screening device for thermal insulation material production according to claim 1, characterized in that: The screening box (1) is fixedly connected and communicated with a feeding port (9) at the top surface, and the feeding port (9) is arranged directly above the highest side of the screen (4) located above.

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