Multiple vibration screening device for hot melt adhesive powder production

Abstract

The utility model relates to the technical field of hot melt adhesive powder production, in particular to a multiple vibration screening device for hot melt adhesive powder production, which comprises a top plate, a bottom plate, a support plate, a screen frame, a driving component and a dust collection component. The screening frame is arranged in a longitudinal linear array mode through the supporting plates, the hole diameters of the screening holes are sequentially reduced from top to bottom, multi-stage screening of hot melt adhesive powder particles can be achieved, the trouble that in the traditional manual screening process, screen cloth is frequently replaced is avoided, the screening efficiency and precision are improved, the labor intensity is reduced, and the requirement for large-scale industrial production is met. The driving assembly is composed of a driving shaft, a rotating shaft, a fan-shaped plate and a check block, the driving shaft drives the fan-shaped plate to rotate, through sliding connection of the check block and the screen frame and the elastic force effect of a large spring, the screen frame rapidly reciprocates, and the screening effect is guaranteed. In addition, the device is provided with a dust suction assembly, a dust suction machine is connected with a dust suction cover through a dust suction pipe, dust generated in the screening process is adsorbed in real time, and the health of operators is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive powder production technology, specifically a multi-vibration sieving device for hot melt adhesive powder production. Background Technology

[0002] Hot melt adhesive powder is a type of malleable adhesive whose physical state changes with temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless, belonging to environmentally friendly chemical products, and is widely used in packaging, textiles, construction, and other fields. Hot melt adhesive powder granules are sold in different grades based on particle size, typically including fine powder, medium powder, and coarse powder, with each grade corresponding to a specific particle size range, allowing consumers to choose the appropriate product according to their needs.

[0003] In existing technologies, when hot melt adhesive powder particles are screened during the production process, operators often need to use sieves of different aperture sizes to separate the particles of different diameters, thereby achieving the purpose of grading. In specific operations, operators need to use multiple sieve sizes in sequence, and through multiple screening operations, separate the hot melt adhesive powder according to particle size one by one, and finally obtain particle size graded products that meet different application requirements.

[0004] However, the above screening methods have the following drawbacks: First, manual operation relies on experience and judgment, resulting in low screening efficiency and high labor intensity, making it difficult to meet the needs of large-scale industrial production. Second, frequent screen replacement is not only time-consuming and labor-intensive, but may also lead to cross-contamination of particles of different sizes due to incomplete screen cleaning, affecting the purity of hot melt adhesive powder and product quality. Third, a lot of dust adheres to the surface of the hot melt adhesive particles during production. During screening, the dust will be dispersed by the vibration, thus affecting the health of the workers. Even after screening, the dust will still adhere to the surface of the hot melt adhesive particles, requiring subsequent dust removal, which is time-consuming and labor-intensive. Therefore, this utility model proposes a multi-vibration screening device for hot melt adhesive powder production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-vibration screening device for hot melt adhesive powder production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-vibration sieving device for hot melt adhesive powder production, comprising: a top plate and a bottom plate, a plurality of support plates fixedly installed on one side between the top plate and the bottom plate, a screen frame slidably installed between the plurality of support plates, the screen frames being arranged in a longitudinal linear array with the screen holes decreasing sequentially from top to bottom, a driving assembly being provided on the other side between the top plate and the bottom plate, and a dust collection assembly being provided on the outer side of the top plate and the bottom plate, the driving assembly including a drive shaft rotatably installed between the top plate and the bottom plate, the drive shaft being fixedly connected to the inner ring surface of the rotating shaft, the outer ring surface of the rotating shaft being fixedly connected to a fan-shaped plate, the fan-shaped plate being slidably connected to one end of a stop block, the other end of the stop block being fixedly connected to one side wall of the screen frame, and a large spring being installed between the other side wall of the screen frame and the support plate.

[0007] Preferably, a material filling cover is fixedly installed on one side of the upper surface of the top plate, and a motor is fixedly installed on the other side of the upper surface of the top plate. The output end of the motor passes through the top plate and is fixedly connected to the top of the drive shaft.

[0008] Preferably, the upper and lower sides of the drive shaft are respectively rotatably sleeved in the limit bearings fixedly installed on the top plate and the bottom plate, and the top plate, the bottom plate, and the support plate are fixedly connected by a fixing rod.

[0009] Preferably, a collection box is slidably installed on one side of the lower surface of the base plate, and a support column is fixedly installed on the other side of the lower surface of the base plate. The dust collection component includes a vacuum cleaner, which is fixedly connected to the vacuum hood through a vacuum pipe.

[0010] Preferably, a set of limiting plates are fixedly connected to both sides of the screen frame away from the large spring, and a connecting rod is slidably installed between the two limiting plates, with both ends of the connecting rod fixedly connected to the support plate.

[0011] Preferably, a baffle is slidably fitted on the top of the screen frame, and a limiting pin is slidably fitted through the bottom of the baffle and slidably connected to the limiting pin. One end of the limiting pin is slidably inserted into a limiting groove opened on the top side wall of the screen frame, and the other end of the limiting pin is fixedly connected to one end of a small spring. The other end of the small spring is fixedly connected to the top of the limiting seat, and the bottom of the limiting seat is fixedly connected to the screen frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This device uses a longitudinal linear array of screen frames with progressively smaller screen apertures. Several screen frames can move synchronously, enabling multi-stage screening of hot melt adhesive powder particles. This avoids the hassle of frequently changing screens in traditional manual screening, improves screening efficiency and accuracy, reduces labor intensity, and meets the needs of large-scale industrial production.

[0014] 2. The device is equipped with a dust collection component, which adsorbs the dust that floats during the screening process in real time, effectively protecting the health of the operators. At the same time, it avoids the problem of dust re-adhering to the surface of hot melt adhesive particles after screening, eliminating the need for secondary dust removal, simplifying the workflow and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 3 This is a top view of the overall structure of this utility model;

[0018] Figure 4 This is a bottom view of the internal structure of this utility model.

[0019] In the diagram: 1. Top plate; 2. Bottom plate; 3. Support plate; 4. Screen frame; 5. Drive shaft; 6. Rotating shaft; 7. Sector plate; 8. Stop block; 9. Large spring; 10. Feeding hood; 11. Motor; 12. Limit bearing; 13. Collection box; 14. Support column; 15. Vacuum cleaner; 16. Vacuum pipe; 17. Vacuum hood; 18. Limit plate; 19. Connecting rod; 20. Baffle; 21. Limit pin; 22. Limit groove; 23. Small spring; 24. Limit seat; 25. Fixing rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figures 1 to 4This utility model provides a technical solution: a multi-vibration sieving device for hot melt adhesive powder production, comprising: a top plate 1 and a bottom plate 2, wherein a plurality of support plates 3 are fixedly installed on one side between the top plate 1 and the bottom plate 2, and a screen frame 4 is slidably installed between the plurality of support plates 3, the support plates 3 limiting the two sides of the screen frame 4, the screen frame 4 being arranged in a longitudinal linear array with the screen holes decreasing sequentially from top to bottom, thereby facilitating the sieving of hot melt adhesive powder particles of different diameters, and a driving assembly is provided on the other side between the top plate 1 and the bottom plate 2, the driving assembly being used to drive the screen frame 4 to move, thereby realizing the sieving action, and a sieving device is provided on the outer side of the top plate 1 and the bottom plate 2. The system includes a dust collection component that collects dust during the screening process, protecting the health of operators. The drive component includes a drive shaft 5 that is rotatably mounted between the top plate 1 and the bottom plate 2. The drive shaft 5 is limited by the top plate 1 and the bottom plate 2. The drive shaft 5 is fixedly connected to the inner ring of the rotating shaft 6. The outer ring of the rotating shaft 6 is fixedly connected to the fan-shaped plate 7. The fan-shaped plate 7 is slidably connected to one end of the stop block 8. The other end of the stop block 8 is fixedly connected to one side wall of the screen frame 4. A large spring 9 is installed between the other side wall of the screen frame 4 and the support plate 3. One end of the large spring 9 abuts against the screen frame 4, and the other end of the large spring 9 is fixedly connected to the support plate 3.

[0022] In use, the material is poured into the top screen frame 4. The motor 11 drives the drive shaft 5 to rotate between the top plate 1 and the bottom plate 2. The drive shaft 5 drives the fan-shaped plate 7 to move in a circular motion. The surface of the fan-shaped plate 7 slides between the baffle 8 and the fan-shaped plate 7. When the fan-shaped plate 7 rotates to different angles, the baffle 8 will cause the screen frame 4 to move back and forth laterally under the limit of the support plate 3 under the elastic force of the large spring 9. This achieves the screening of the material in the screen frame 4. The screen frames 4 are arranged in a longitudinal linear array, so that several screen frames 4 move synchronously, thereby achieving multi-stage screening. The screening aperture of the screen frame 4 decreases in sequence, so that hot melt powder particles of different sizes can be screened out, thereby achieving graded collection, reducing labor intensity and improving screening efficiency. At the same time, the dust collection component is set to absorb the dust generated during the screening process, preventing the dust from being inhaled by the workers and protecting their health. After screening is complete, there is no need for secondary dust removal of the hot melt adhesive powder particles, saving time and effort and simplifying the workflow.

[0023] A feeding hood 10 is fixedly installed on one side of the upper surface of the top plate 1 to facilitate the addition of materials. A motor 11 is fixedly installed on the other side of the upper surface of the top plate 1. The motor 11 is electrically connected to an external control device. The output end of the motor 11 passes through the top plate 1 and is fixedly connected to the top of the drive shaft 5, so that the drive shaft 5 can be rotated by the motor 11. The upper and lower sides of the drive shaft 5 are respectively rotatably sleeved in the limit bearings 12 fixedly installed on the top plate 1 and the bottom plate 2. The limit bearings 12 limit the drive shaft 5, thereby improving the rotational stability of the drive shaft 5. The top plate 1, the bottom plate 2, and the support plate 3 are fixed together by a fixing rod 25. The bottom plate 2 has a slidable collection box 13 on one side of its lower surface. The material is collected by pulling out the collection box 13. A support column 14 is fixedly installed on the other side of the bottom plate 2. The support column 14 improves the stability of the entire device. The dust collection component includes a dust collector 15. The dust collector 15 is fixedly connected to the dust collection hood 17 through a dust collection pipe 16. The dust collector 15 is fixedly installed on one side of the bottom plate 2 and is electrically connected to an external control device. By turning on the dust collector 15, the dust collection hood 17 is used to adsorb the dust generated during the screening process through the dust collection pipe 16, thereby preventing the floating dust from damaging the health of the operators.

[0024] A set of limiting plates 18 are fixedly connected to both sides of the screen frame 4 away from the large spring 9. A connecting rod 19 is slidably installed between the two limiting plates 18. Both ends of the connecting rod 19 are fixedly connected to the support plate 3. The connecting rod 19 limits the limiting plates 18, and at the same time, the sliding between the limiting plates 18 and the connecting rod 19 improves the stability of the screen frame 4 during movement. A baffle 20 is slidably sleeved on the top of the screen frame 4. The baffle 20 covers the top of the screen frame 4, so that the hot melt adhesive powder particles will not shake to the outside of the lower screen frame 4 during the screening process. A limiting pin 21 is sleeved through the bottom of the baffle 20 and slidably connected to the limiting pin 21. One end of the limiting pin 21 is slidably inserted into the limiting groove 22 opened in the top side wall of the screen frame 4, and the other end of the limiting pin 21 is fixed to one end of the small spring 23. The small spring 23 is connected to the top of the limiting seat 24, and the bottom of the limiting seat 24 is fixedly connected to the screen frame 4. The limiting seat 24 limits the limiting pin 21. When the baffle 20 needs to be disassembled, the limiting pin 21 is pulled outward, and the limiting pin 21 slides outward from the limiting seat 24 to the limiting groove 22, thereby releasing the limiting of the bottom of the baffle 20, which facilitates the disassembly of the baffle 20 and the subsequent removal of the material in the screen frame 4. At the same time, the limiting pin 21 will pull the small spring 23 to stretch. When the baffle 20 needs to be installed, the baffle 20 can be placed on the top of the screen frame 4, the limiting pin 21 is released, and under the reverse elastic force of the small spring 23, the limiting pin 21 is inserted into the limiting groove 22, thereby completing the fixation of the baffle 20.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-vibrating sieving device for hot melt adhesive powder production, comprising a top plate (1) and a bottom plate (2), characterized in that: A number of support plates (3) are fixedly installed on one side between the top plate (1) and the bottom plate (2). A screen frame (4) is slidably installed between the support plates (3). The screen frames (4) are arranged in a longitudinal linear array and the screen holes of the screen frames (4) decrease in size from top to bottom. A driving component is provided on the other side between the top plate (1) and the bottom plate (2). A dust collection component is provided on the outer side of the top plate (1) and the bottom plate (2). The drive assembly includes a drive shaft (5) rotatably mounted between the top plate (1) and the bottom plate (2). The drive shaft (5) is fixedly connected to the inner ring surface of the rotating shaft (6). The outer ring surface of the rotating shaft (6) is fixedly connected to the sector plate (7). The sector plate (7) is slidably connected to one end of the stop block (8). The other end of the stop block (8) is fixedly connected to one side wall of the screen frame (4). A large spring (9) is installed between the other side wall of the screen frame (4) and the support plate (3).

2. The multiple vibrating screen device for hot melt adhesive powder production according to claim 1, characterized in that: A feeding cover (10) is fixedly installed on one side of the upper surface of the top plate (1), and a motor (11) is fixedly installed on the other side of the upper surface of the top plate (1). The output end of the motor (11) passes through the top plate (1) and is fixedly connected to the top of the drive shaft (5).

3. The multiple vibrating screen device for hot melt adhesive powder production according to claim 2, characterized in that: The drive shaft (5) is rotatably sleeved on the upper and lower sides of the limit bearing (12) fixedly installed on the top plate (1) and the bottom plate (2), respectively. The top plate (1), the bottom plate (2), and the support plate (3) are fixedly connected by a fixing rod (25).

4. The multiple vibrating screen device for hot melt adhesive powder production according to claim 3, characterized in that: A collection box (13) is slidably installed on one side of the lower surface of the base plate (2), and a support column (14) is fixedly installed on the other side of the lower surface of the base plate (2). The dust collection assembly includes a vacuum cleaner (15), which is fixedly connected to the dust cover (17) through a vacuum pipe (16).

5. The multiple vibrating screen device for hot melt adhesive powder production according to claim 1, characterized in that: A set of limiting plates (18) are fixedly connected to both sides of the screen frame (4) away from the large spring (9). A connecting rod (19) is slidably installed between the two limiting plates (18), and both ends of the connecting rod (19) are fixedly connected to the support plate (3).

6. The multiple vibrating screen device for hot melt adhesive powder production according to claim 5, characterized in that: The top of the screen frame (4) is slidably fitted with a baffle (20), and the bottom of the baffle (20) is fitted with a limiting pin (21) and slidably connected to the limiting pin (21). One end of the limiting pin (21) is slidably inserted into the limiting groove (22) opened on the top side wall of the screen frame (4), and the other end of the limiting pin (21) is fixedly connected to one end of the small spring (23). The other end of the small spring (23) is fixedly connected to the top of the limiting seat (24), and the bottom of the limiting seat (24) is fixedly connected to the screen frame (4).

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