A hot melt adhesive packaging screening apparatus

Abstract

This application discloses a packaging and screening device for hot melt adhesive, including a movable frame and a hopper. A sorting chamber is located below the outlet of the hopper. A sorting sieve plate with perforations is installed at an incline inside the sorting chamber, dividing the inner cavity of the sorting chamber into a loading chamber and a unprocessed chamber. The bottom outlet of the loading chamber is connected to a loading device via a loading pipe. The outlet of the unprocessed chamber is connected to a secondary screening device via a connecting pipe. The secondary screening device is fixedly installed on the movable frame. During operation, hot melt adhesive particles in the hopper fall onto the surface of the sorting sieve plate. Under the action of gravity and the sorting sieve plate, some of the hot melt adhesive particles fall into the loading chamber, while the other part falls into the unprocessed chamber and is then transported to the secondary screening device via the connecting pipe for secondary screening. This invention uses an inclined sorting sieve plate inside the sorting chamber, directly dividing the sorting chamber into a "loading chamber" and a "unprocessed chamber." Large particles automatically roll into the unprocessed chamber along the inclined surface and are then sent to the secondary screening device in real time via the connecting pipe, eliminating the need for manual cleaning and improving screening efficiency.

Description

Technical Field

[0001] This utility model particularly relates to a packaging and screening device for hot melt adhesive. Background Technology

[0002] In the production and packaging of hot melt adhesive granules, screening is a crucial process to ensure product consistency and improve packaging quality. Currently, the industry commonly uses a vibrating screen based on a rotating disc. This existing technology typically includes an inclined disc screen driven by a vibrating motor. Hot melt adhesive granules bounce and move on the disc under vibration. Qualified granules smaller than the sieve aperture can pass through the screen and fall into the collection device below, while larger granules or clumps that fail to screen remain on the surface of the disc screen. However, this structure has the following problems: due to the structural characteristics of the disc, large granules that are not screened will gradually concentrate in the edge area of ​​the disc, and cannot be automatically and continuously removed. They must be manually cleaned and collected by operators after the machine is stopped. This not only greatly interrupts the continuous production process and reduces screening efficiency, but also increases labor costs and the labor intensity of operators. Finally, if secondary fine screening is required, another independent screening device is often needed, making the entire production line layout dispersed, occupying a large area, and resulting in low material flow efficiency. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a packaging and screening device for hot melt adhesive.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A packaging and screening device for hot melt adhesive includes a movable frame with a hopper for storing hot melt adhesive particles fixedly installed on the frame. A sorting chamber is located below the outlet of the hopper, and a sorting sieve plate with perforations is installed at an incline inside the sorting chamber. The sorting sieve plate divides the inner cavity of the sorting chamber into a loading chamber and a unprocessed chamber. The bottom outlet of the loading chamber is connected to a loading device via a loading pipe, and the outlet of the unprocessed chamber is connected to a secondary screening device via a connecting pipe. The secondary screening device is fixedly installed on the movable frame. During operation, the hot melt adhesive particles in the hopper fall onto the surface of the sorting sieve plate. Under the action of gravity and the sorting sieve plate, some of the hot melt adhesive particles fall into the loading chamber, while the other part falls into the unprocessed chamber and is then transported to the secondary screening device via the connecting pipe for secondary screening.

[0006] Preferably, the loading device includes a mounting plate fixedly installed on the movable frame, the mounting plate being used to directly hold the packaging box; a limiting opening is provided on the mounting plate, the lower end of the through pipe passes through the limiting opening and extends toward the secondary screening device, and when the packaging box is placed on the mounting plate, the opening of the packaging box is directly opposite the lower end outlet of the loading pipe.

[0007] Preferably, the secondary screening device includes a sorting frame, which is inclined downward from the outlet of the through pipe; the sorting frame consists of an inclined section from top to bottom and a horizontal section at the end, the inclined section is evenly provided with sorting holes, and the horizontal section is provided with a collection trough; the hot melt adhesive particles conveyed by the through pipe fall onto the surface of the inclined section, wherein particles with a size larger than the diameter of the sorting holes fall into the collection trough.

[0008] Preferably, it also includes a dust collection box located below the inclined section of the sorting frame, for collecting fine particles or dust falling from the sorting holes.

[0009] Preferably, two guide wheels are spaced apart on the movable frame located below the sorting bin, and the middle section of the loading tube passes between the two guide wheels and is clamped and guided by them, so that the lower end outlet of the loading tube is directly above the opening of the packaging box.

[0010] Preferably, the mobile frame is also provided with a tool rack.

[0011] The beneficial effects of this utility model are:

[0012] This invention features an inclined sorting screen plate within the sorting chamber, directly dividing it into a "feeding chamber" and a "processing chamber." Large particles automatically roll into the processing chamber along the inclined surface and are then transported in real-time to the secondary screening device via a conduit, eliminating the need for manual cleaning and improving screening efficiency. Furthermore, the secondary screening device is integrated with the mobile frame, allowing coarse particles to be further classified according to aperture size in the inclined section, with qualified particles being recycled, reducing the floor space required. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0014] Figure 1 This is a schematic diagram of the structure of a packaging and screening device for hot melt adhesive according to this application. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a packaging and screening device for hot melt adhesive according to this application. Figure 2 . Detailed Implementation

[0016] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0017] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0018] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, soldering, snap-fitting, or embedding to suitably replace it.

[0019] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0020] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0021] A packaging and screening device for hot melt adhesive includes a movable frame 1. A hopper 2 for storing hot melt adhesive particles is fixedly installed on the movable frame 1. A sorting chamber 3 is provided below the discharge port of the hopper 2. A sorting sieve plate 4 with sieve holes is installed inclined inside the sorting chamber 3. The sorting sieve plate 4 divides the inner cavity of the sorting chamber 3 into a loading chamber 31 and a unprocessed chamber 32. The bottom outlet of the loading chamber 31 is connected to a loading device through a loading pipe 5. The outlet of the unprocessed chamber 32 is connected to a secondary screening device through a connecting pipe 7. The secondary screening device is fixedly installed on the movable frame 1. During operation, the hot melt adhesive particles in the hopper 2 fall onto the surface of the sorting sieve plate 4. Under the action of gravity and the sorting sieve plate 4, part of the hot melt adhesive particles fall into the loading chamber 31, and the other part falls into the unprocessed chamber 32 and is then transported to the secondary screening device through the connecting pipe 7 for secondary screening.

[0022] Furthermore, the loading device includes a mounting plate 61 fixedly installed on the movable frame 1. The mounting plate 61 is used to directly support the packaging box 1-1. A limiting port 62 is opened on the mounting plate 61. The lower end of the through pipe 7 passes through the limiting port 62 and extends towards the secondary screening device. When the packaging box 1-1 is placed on the mounting plate 61, the opening of the packaging box 1-1 is directly opposite the lower outlet of the loading pipe 5.

[0023] Furthermore, the secondary screening device includes a sorting frame 81, which is inclined downward from the outlet of the through pipe 7. The sorting frame 81 consists of an inclined section 811 from top to bottom and a horizontal section 812 at the end. Sorting holes 813 are evenly opened on the inclined section 811, and a collection trough 814 is provided in the horizontal section 812. Hot melt adhesive particles conveyed by the through pipe 7 fall onto the surface of the inclined section 811, wherein particles with a size larger than the aperture of the sorting holes 813 fall into the collection trough 814.

[0024] Furthermore, it also includes a dust collection box 9, which is located below the inclined section 811 of the sorting frame 81 and is used to collect fine particles or dust falling from the sorting hole 813.

[0025] Furthermore, two guide wheels 10 are spaced apart on the movable frame 1 located below the sorting bin 3. The middle section of the loading tube 5 passes between the two guide wheels 10 and is clamped and guided by them, so that the lower end outlet of the loading tube 5 is directly above the opening of the packaging box.

[0026] Furthermore, a tool rack 11 is also provided on the mobile frame 1.

[0027] The working principle of this utility model is as follows:

[0028] like Figure 1 As shown, the bottom of the mobile frame 1 is equipped with omnidirectional casters for manual movement. The hopper 2 can be welded to the top of the mobile frame 1, with its conical discharge port facing the sorting chamber 3. The sorting chamber 3 is fixed to the middle of the mobile frame 1 by bolts, and the sorting screen plate 4 is installed at an inclination of 30-45° inside, with the screen hole diameter set according to the product specifications. The hot melt adhesive particles in the hopper 2 first fall into the sorting chamber 3. Under the action of the sorting screen plate 4, the hot melt adhesive particles smaller than the screen hole diameter fall into the loading chamber, while the hot melt adhesive particles larger than the screen hole diameter fall along the sorting screen plate 4 into the waiting chamber 32 (hereinafter, hot melt adhesive particles larger than the screen hole diameter are referred to as coarse hot melt adhesive particles). The hot melt adhesive particles located in the loading chamber 31 will enter the packaging box 1-1 through the loading pipe, while the hot melt adhesive particles located in the waiting chamber 32 will enter the secondary screening device for screening through the through pipe 7.

[0029] In the above technical solution, the material loading device is configured with the following structure: a mounting plate 61 fixed on the movable frame 1. As an example of embodiment 1, hot melt adhesive particles are loaded into a packaging box 1-1, that is, the mounting plate 61 only serves as a support, and packaging bags can also be used for packaging. The present application also provides a limiting port 62 on the mounting plate 61. The limiting port 62 has a limiting function on the through pipe 7 to prevent the through pipe 7 from shaking and deviating from the secondary screening device.

[0030] Based on the above technical solution, this application sets the secondary screening device as a sorting frame 81. The sorting frame 81 is inclined downward from the outlet of the through pipe 7. The sorting frame 81 consists of an inclined section 811 from top to bottom and a horizontal section 812 at the end. Sorting holes 813 are evenly distributed on the inclined section 811, and a collection trough 814 is provided in the horizontal section 812. The sorting holes evenly distributed on the inclined section 811 perform secondary screening of coarse hot melt adhesive particles. Only coarse hot melt adhesive particles larger than the diameter of the sorting holes can continue to fall and finally slide into the collection trough 814. Coarse hot melt adhesive particles smaller than the diameter of the sorting holes 813 will pass through the sorting holes 813 and fall into the dust collection box 9. Thus, the sorting holes 813 evenly distributed on the inclined section 811 perform secondary screening of coarse hot melt adhesive particles. The whole process does not require a motor or additional power, and the outlet of the through pipe can maintain a large flow rate without clogging.

[0031] Based on the above technical solution, two guide wheels 10 are spaced apart on the movable frame 1 located below the sorting bin 3. The middle section of the loading tube 5 passes between the two guide wheels 10 and is clamped and guided by them, so that the lower outlet of the loading tube 5 is directly above the opening of the packaging box. With this design, since the loading tube is a flexible tube and is prone to swinging, the two guide wheels 10 form a limiting channel, allowing the loading tube 5 to undergo small displacements when pushed by the movable frame 1. When workers change packaging boxes 1-1 of different heights, they only need to lightly lift or press down the loading tube 5, and the flexible tube will slide smoothly between the two wheels without loosening any fasteners.

[0032] Based on the above technical solution, a tool rack 11 is welded onto the mobile frame 1. The tool rack 11 can be used to place commonly used small tools such as gloves, wrenches, and sampling bags, which makes the design more convenient.

[0033] This invention features an inclined sorting screen plate within the sorting chamber, directly dividing it into a "feeding chamber" and a "processing chamber." Large particles automatically roll into the processing chamber along the inclined surface and are then transported in real-time to the secondary screening device via a conduit, eliminating the need for manual cleaning and improving screening efficiency. Furthermore, the secondary screening device is integrated with the mobile frame, allowing coarse particles to be further classified according to aperture size in the inclined section, with qualified particles being recycled, reducing the floor space required.

[0034] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but the scope of protection is defined by the content of the claims.

Claims

1. A packaging and screening device for hot melt adhesive, characterized in that, The device includes a movable frame (1), on which a hopper (2) for storing hot melt adhesive particles is fixedly installed. A sorting chamber (3) is provided below the outlet of the hopper (2). A sorting sieve plate (4) with sieve holes is installed at an incline inside the sorting chamber (3). The sorting sieve plate (4) divides the inner cavity of the sorting chamber (3) into a loading chamber (31) and a unprocessed chamber (32). The bottom outlet of the loading chamber (31) is connected to a loading device through a loading pipe (5). The outlet of the chamber to be processed (32) is connected to a secondary screening device through a pipe (7). The secondary screening device is fixedly installed on the mobile frame (1). During operation, the hot melt adhesive particles in the hopper (2) fall onto the surface of the sorting screen plate (4). Under the action of gravity and the sorting screen plate (4), part of the hot melt adhesive particles fall into the loading chamber (31), and the other part falls into the chamber to be processed (32) and is then transported to the secondary screening device through the pipe (7) for secondary screening.

2. The packaging and screening equipment for hot melt adhesive according to claim 1, characterized in that, The loading device includes a mounting plate (61) fixedly installed on the movable frame (1). The mounting plate (61) is used to directly hold the packaging box (1-1). A limiting port (62) is opened on the mounting plate (61). The lower end of the through pipe (7) passes through the limiting port (62) and extends to the secondary screening device. When the packaging box (1-1) is placed on the mounting plate (61), the opening of the packaging box (1-1) is directly opposite the lower end outlet of the loading pipe (5).

3. The packaging and screening equipment for hot melt adhesive according to claim 1, characterized in that, The secondary screening device includes a sorting frame (81), which is inclined downward from the outlet of the through pipe (7). The sorting frame (81) consists of an inclined section (811) from top to bottom and a horizontal section (812) at the end. Sorting holes (813) are evenly opened on the inclined section (811), and a collection trough (814) is provided in the horizontal section (812). Hot melt adhesive particles conveyed by the through pipe (7) fall onto the surface of the inclined section (811), wherein particles with a size larger than the aperture of the sorting holes (813) fall into the collection trough (814).

4. The packaging and screening equipment for hot melt adhesive according to claim 3, characterized in that, It also includes a dust collection box (9), which is located below the inclined section (811) of the sorting frame (81) and is used to collect fine particles or dust falling from the sorting hole (813).

5. The packaging and screening equipment for hot melt adhesive according to claim 1, characterized in that, Two guide wheels (10) are spaced apart on the movable frame (1) located below the sorting bin (3). The middle section of the loading tube (5) passes between the two guide wheels (10) and is clamped and guided by them, so that the lower end outlet of the loading tube (5) is directly above the opening of the packaging box.

6. The packaging and screening equipment for hot melt adhesive according to claim 1, characterized in that, The mobile frame (1) is also equipped with a tool rack (11).

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