Mixing equipment for PVC (polyvinyl chloride) foam board

Abstract

The utility model relates to the technical field of mixing of PVC (polyvinyl chloride) foam boards, and discloses mixing equipment for PVC foam boards, which comprises a mixing tank, a screening bin fixed on the surface of the top of the mixing tank, a blanking hopper fixed on the top of the screening bin, and a feeding hopper fixed on the top of the blanking hopper, wherein the internal space of the screening bin is communicated with the internal space of the mixing tank; the internal space of the discharging hopper communicates with the internal space of the screening bin, powder can firstly fall to the top of the screening plate through the eccentric wheel, the driving motor, the linkage plate and the screening plate when being poured into the screening bin through the discharging hopper, the driving motor drives the eccentric wheel to rotate, and the eccentric wheel drives the screening plate to reciprocate through the linkage plate; powder at the top of the sieve plate is sieved, so that the powder falls into the mixing tank through sieve holes in the surface of the sieve plate, and agglomerated powder and impurities fall into the discharge chute, so that the powder is prevented from entering the mixing tank to participate in stirring, the powder is relatively uniformly stirred, the uniformity of the powder is relatively good, and the quality of a produced product is relatively good; the use is relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC foam board mixing, in particular to mixing equipment used for PVC foam boards. Background Art

[0002] PVC foam board is a fireproof material. It is mainly used as indoor light partition material, audio-visual space sound insulation material, fireproof material, refrigeration and air conditioning engineering packaging material, roof insulation material (instead of PU material) and furniture OA material. It has the characteristics of moisture resistance, weather resistance, impact resistance, heat insulation, acid and alkali corrosion resistance, and flame resistance.

[0003] Through patent search, it was found that a PVC foam board powder mixing and stirring device with publication number CN217648732U, which drives the rotating shaft to rotate through a servo motor, and the rotation of the rotating shaft drives the rotating plate to rotate. During the rotation process, the rotating plate drives the powder to rotate up and down inside the stirring tank, thereby improving the mixing effect of the powder and improving the stirring efficiency. However, when there are foreign objects in the powder poured into the stirring tank or the powder is lumped due to moisture, it will directly enter the inside of the stirring tank to participate in the stirring, resulting in uneven stirring of the powder, resulting in poor uniformity of the powder, resulting in reduced quality of the produced products, and relatively inconvenient to use. For this reason, we propose a mixing device for PVC foam boards to solve or improve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a mixing device for PVC foam boards, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical scheme: it includes a mixing tank, a screening bin fixed on the top surface of the mixing tank, a lower hopper fixed on the top of the screening bin, a sieve plate inserted inside the screening bin, two groups of sieve plates are symmetrically inserted inside the screening bin, a discharge chute is fixed inside the screening bin, the discharge chute is located between the two groups of sieve plates, a driving motor is fixed to one side of the surface of the screening bin through a fixing plate, an eccentric wheel is fixed to the top end of the output shaft of the driving motor, and a linkage plate is fixed to one side of the surface of the two groups of sieve plates through a fixing column.

[0006] Furthermore, a slot is provided on the top of the linkage plate, and the output shaft of the eccentric wheel passes through the slot provided on the top of the linkage plate and is slidably connected with the linkage plate through the slot.

[0007] Furthermore, a slot is provided inside the sieve plate, and an adjustment plate is slidably installed inside the slot.

[0008] Furthermore, a threaded rod is fixed on the surface of the adjustment plate, one end of the threaded rod passes through the inside of the screen plate and the linkage plate, and two sets of nuts are threadedly connected on the surface of the threaded rod, and the two sets of nuts are respectively located on the symmetrical two side surfaces of the linkage plate.

[0009] Furthermore, one end of the discharge chute passes through the surface of the screening bin and communicates with the external space.

[0010] Furthermore, the inner space of the screening bin is connected with the inner space of the mixing tank, the inner space of the lower hopper is connected with the inner space of the screening bin, and two groups of lower hoppers are symmetrically fixed on the top of the screening bin.

[0011] Furthermore, the top of the sieve plate is set with a certain inclination angle, and the side of the top of the sieve plate away from the discharge trough is higher than the side of the top of the sieve plate close to the discharge trough, and the side of the top of the sieve plate close to the discharge trough is located on the top side of the discharge trough.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by arranging an eccentric wheel, a driving motor, a linkage plate and a screen plate, the powder can first fall to the top of the screen plate when being poured into the screening bin through the lower hopper, so that the driving motor drives the eccentric wheel to rotate, and the eccentric wheel drives the screen plate to move back and forth through the linkage plate, so as to screen the powder on the top of the screen plate, so that the powder passes through the sieve holes on the surface of the screen plate and falls into the interior of the mixing tank, while the agglomerated powder and debris fall into the interior of the discharge trough through the surface of the sieve plate, thereby avoiding them from entering the interior of the mixing tank to participate in stirring, the powder is stirred relatively evenly, the powder uniformity is relatively good, the quality of the products produced is relatively good, and it is relatively convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the screening bin structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the screening bin of the utility model;

[0016] Figure 4 This is a schematic diagram of the linkage plate structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the adjustment plate of the utility model;

[0018] Figure 6 It is a schematic cross-sectional view of the internal structure of the sieve plate of the utility model.

[0019] In the figure: 1. Mixing tank; 2. Screening bin; 3. Lower hopper; 4. Discharge chute; 5. Screen plate; 6. Adjustment plate; 7. Drive motor; 8. Eccentric wheel; 9. Linkage plate; 10. Threaded rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 , including a mixing tank 1. The structure of the mixing tank 1 in the utility model is the same as that in the comparative document CN217648732U, and the usage and effect are the same, and no detailed description is given here. A screening bin 2 is fixed to the top surface of the mixing tank 1, and the internal space of the screening bin 2 is connected to the internal space of the mixing tank 1. A lower hopper 3 is fixed to the top of the screening bin 2, and the internal space of the lower hopper 3 is connected to the internal space of the screening bin 2. Two groups of lower hoppers 3 are symmetrically fixed on the top of the screening bin 2. The sieve plate 5 is inserted in the interior of the screening bin 2. Two groups of sieve plates 5 are symmetrically inserted in the interior of the screening bin 2. The top of the sieve plate 5 is set with a certain inclination angle, and the top of the sieve plate 5 is away from the discharge trough 4 One side is higher than the side of the top of the sieve plate 5 close to the discharge chute 4, the side of the top of the sieve plate 5 close to the discharge chute 4 is located on the top side of the discharge chute 4, the lower hopper 3 is located on the top side of the sieve plate 5, and the powder is poured into the lower hopper 3 and falls on the top of the sieve plate 5. The sieve plate 5 is provided with a slot inside, and an adjusting plate 6 is slidably installed inside the slot. The surface of the adjusting plate 6 is provided with a through hole of the same size as the sieve hole on the surface of the sieve plate 5, and the through hole is aligned with the sieve hole on the surface of the sieve plate 5. When the adjusting plate 6 moves, the through hole will drive the through hole to move and be misaligned with the position of the sieve hole on the surface of the sieve plate 5, thereby changing the passing area between the sieve hole of the sieve plate 5 and the through hole of the adjusting plate 6, thereby changing the screening accuracy of the sieve plate 5.

[0022] The discharge chute 4 is fixed to the inside of the screening bin 2. The discharge chute 4 is located between the two groups of sieve plates 5. One end of the discharge chute 4 passes through the surface of the screening bin 2 and is connected to the external space. The top of the discharge chute 4 is set at a certain angle. When debris and agglomerated powder fall to the top of the discharge chute 4, they will slide down from the top of the discharge chute 4 by gravity. The drive motor 7 is fixed to one side of the surface of the screening bin 2 through a fixed plate. The eccentric wheel 8 is fixed to the top of the output shaft of the drive motor 7. The drive motor 7 can drive the eccentric wheel 8 fixed at the top of the output shaft to rotate. The linkage plate 9 is fixed to one side of the surface of the two groups of sieve plates 5 through a fixed column. The top of the linkage plate 9 is provided with a slot. The output shaft of the eccentric wheel 8 passes through the inside of the slot set at the top of the linkage plate 9 and is slidably connected to the linkage plate 9 through the slot. When the eccentric wheel 8 rotates, it will drive the output The linkage plate 9 slidably connected to the surface of the shaft moves and the output shaft will slide inside the slot of the linkage plate 9. When the linkage plate 9 moves, it will drive the fixed screen plate 5 to move. When the screen plate 5 moves, it will drive the adjustment plate 6 slidably connected inside the slide groove to move. A threaded rod 10 is fixed on the surface of the adjustment plate 6. One end of the threaded rod 10 passes through the inside of the screen plate 5 and the linkage plate 9. Two sets of nuts are threadedly connected to the surface of the threaded rod 10. The two sets of nuts are respectively located on the symmetrical two side surfaces of the linkage plate 9. The threaded rod 10 connected by thread can be driven to move by rotating the nut. When the threaded rod 10 moves, it will drive the fixed adjustment plate 6 to move. At the same time, the two sets of nuts can limit the position of the threaded rod 10, so that the linkage plate 9 drives the threaded rod 10 to move when it moves, thereby preventing the adjustment plate 6 from sliding inside the sieve plate 5 when the sieve plate 5 moves.

[0023] Working principle: when mixing is required, the powder is poured into the interior of the screening bin 2 through the lower hopper 3. When the powder enters the interior of the screening bin 2, it will first fall on the top of the sieve plate 5. At this time, the driving motor 7 drives the eccentric wheel 8 to rotate. When the eccentric wheel 8 rotates, the linkage plate 9 is driven to move through the output shaft. When the linkage plate 9 moves, it drives the fixed sieve plate 5 to move. The driving motor 7 drives the eccentric wheel 8 to rotate continuously, which can drive the sieve plate 5 to move in a reciprocating cycle, so that the sieve plate 5 can screen the powder on the top, so that the powder passes through the sieve holes on the surface of the sieve plate 5 and falls into the interior of the mixing tank 1, while the agglomerated powder and debris fall into the interior of the discharge trough 4 through the surface of the sieve plate 5, thereby avoiding them from entering the interior of the mixing tank 1 to participate in the mixing. The powder is stirred relatively evenly, the powder uniformity is relatively good, the quality of the produced products is relatively good, and it is relatively convenient to use. At the same time, the screening accuracy of the powder can be adjusted by adjusting the position of the adjusting plate 6 according to the type of powder placed, thereby improving the adaptability of the equipment to the screening of different powders and improving the adaptability of the equipment.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing device for PVC foam board, characterized in that: It comprises a mixing tank (1), a screening bin (2) fixed on the top surface of the mixing tank (1), and a lower hopper (3) fixed on the top of the screening bin (2); A sieve plate (5), the sieve plate (5) is inserted inside the screening bin (2), and two groups of sieve plates (5) are symmetrically inserted inside the screening bin (2); A discharge chute (4), the discharge chute (4) is fixed inside the screening bin (2), and the discharge chute (4) is located between two sets of sieve plates (5); A driving motor (7), wherein the driving motor (7) is fixed to one side of the surface of the screening bin (2) via a fixing plate; An eccentric wheel (8), the eccentric wheel (8) is fixed to the top end of the output shaft of the driving motor (7); The linkage plate (9) is fixed to one side of the surface of the two groups of sieve plates (5) through fixing columns.

2. A mixing device for PVC foam board according to claim 1, characterized in that: The top of the linkage plate (9) is provided with a slot, and the output shaft of the eccentric wheel (8) passes through the inside of the slot provided at the top of the linkage plate (9) and is slidably connected with the linkage plate (9) through the slot.

3. A mixing device for PVC foam board according to claim 1, characterized in that: The screen plate (5) is provided with a slot inside, and an adjustment plate (6) is slidably installed inside the slot.

4. A mixing device for PVC foam board according to claim 3, characterized in that: A threaded rod (10) is fixed on the surface of the adjustment plate (6), one end of the threaded rod (10) passes through the inside of the sieve plate (5) and the linkage plate (9), and two groups of nuts are threadedly connected on the surface of the threaded rod (10), and the two groups of nuts are respectively located on the symmetrical two side surfaces of the linkage plate (9).

5. The mixing equipment for PVC foam board according to claim 1, characterized in that: One end of the discharge chute (4) passes through the surface of the screening bin (2) and communicates with the external space.

6. A mixing device for PVC foam board according to claim 1, characterized in that: The internal space of the screening bin (2) is connected to the internal space of the mixing tank (1), and the internal space of the lower hopper (3) is connected to the internal space of the screening bin (2). Two groups of lower hoppers (3) are symmetrically fixed on the top of the screening bin (2).

7. A mixing device for PVC foam board according to claim 1, characterized in that: The top of the sieve plate (5) is arranged with a certain inclination angle, and the side of the top of the sieve plate (5) away from the discharge trough (4) is higher than the side of the top of the sieve plate (5) close to the discharge trough (4), and the side of the top of the sieve plate (5) close to the discharge trough (4) is located on one side of the top of the discharge trough (4).

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