Mixing device for low-softening-point resin raw materials

Abstract

The utility model relates to the technical field of resin production, and provides a mixing device for low-softening-point resin raw materials, which comprises a barrel, a heating block is fixedly mounted on the rear side of the bottom of the barrel, a discharge pipe is fixedly mounted on the front side of the bottom of the barrel, and a valve is fixedly mounted in the middle of an inner cavity of the discharge pipe. A control panel is fixedly installed on the front side of the outer surface of the barrel, a heating plate is fixedly installed in an inner cavity of the side wall of the barrel, and winding blocks are fixedly installed on the left side and the right side of the top of the barrel. According to the mixing device for the low-softening-point resin raw materials, through cooperative use of a scraper structure and a cylindrical structure, in the working process, after stirring is completed, a winding mechanism contained in an inner cavity of a winding block is controlled to be closed through different buttons on the front side of a control panel, and by means of the shape of a scraper, the scraper automatically moves downwards under the action of self gravity; therefore, raw materials attached to the outer surface of the cylinder and the inner wall of the barrel are scraped off, and waste caused by the fact that the stirred raw materials are attached to the inner shaft of the stirring device is avoided.

Description

Technical Field

[0001] This utility model relates to the field of resin production technology, specifically to a mixing device for low softening point resin raw materials. Background Technology

[0002] Resin generally refers to an organic polymer that softens or melts when heated, tends to flow under external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature. In a broad sense, any polymer compound that can be used as a raw material for processing plastic products is called resin. The production process of resin requires the hot melt mixing of its raw materials. Existing resin production mixing equipment on the market does not have the function of crushing raw materials. When the raw materials are large, the hot melt mixing efficiency is low, which affects the processing efficiency of the equipment and the waiting time for workers is long.

[0003] A search revealed Chinese patent publication number CN218358964U, which discloses a raw material mixing device for chemical resin processing. In this patent, a second motor and a crushing roller are installed. The second motor drives the crushing roller to rotate, crushing the raw materials. This results in fast and efficient hot-melting and mixing of the raw materials, thereby improving production efficiency. At the same time, a connecting rod and a scraper are installed to scrape the inner wall of the mixing drum, preventing the raw materials from adhering to the inner wall of the mixing drum after hot melting, thus avoiding sticking and affecting the hot melting effect of the raw materials.

[0004] However, when the above-mentioned device is used, although the raw materials are crushed and prioritized by the crushing roller, the top opening design of the feed hopper causes some raw materials to splash out of the feed hopper during crushing, resulting in material waste. At the same time, the opening design of the feed hopper causes the raw material odor to spread around the equipment during the mixing process, affecting the working environment of the staff. Secondly, the scraper structure can only scrape off the inner wall of the mixing drum during operation. After the device stops working, the scraper cannot effectively scrape off all the raw materials from the inner wall of the mixing drum, thus resulting in the problem of material waste after mixing. Utility Model Content

[0005] This utility model proposes a mixing device for low softening point resin raw materials, which has the advantages of avoiding waste caused by raw materials sticking to the inner shaft of the mixing device after stirring and avoiding waste of raw materials during the addition process, thus solving the problems of waste during raw material addition and waste after mixing and stirring.

[0006] The technical solution of this utility model is as follows: A mixing device for low softening point resin raw materials includes a cylinder. A heating block is fixedly installed on the rear side of the bottom of the cylinder. A discharge pipe is fixedly installed on the front side of the bottom of the cylinder. A valve is fixedly installed in the middle of the inner cavity of the discharge pipe. A control panel is fixedly installed on the front side of the outer surface of the cylinder. A heating plate is fixedly installed in the inner cavity of the side wall of the cylinder. Winding blocks are fixedly installed on both the left and right sides of the top of the cylinder. A motor is fixedly installed in the middle of the top of the cylinder. A cylinder is rotatably installed in the middle of the inner cavity of the cylinder. Multiple strip grooves are opened on the outer surface of the cylinder. A stirring rod is rotatably installed on the top of the inner cavity of the strip grooves through a torsion shaft. A scraper is provided on the top of the inner cavity of the cylinder.

[0007] Preferably, a feed pipe is fixedly installed on the front side of the top of the cylinder, a plurality of crushing cylinders are rotatably installed at the bottom of the inner cavity of the feed pipe, a magnetic strip is fixedly installed on the front side of the bottom of the inner cavity of the top opening of the feed pipe, and a cover plate is rotatably installed on the rear side of the inner cavity of the top opening of the feed pipe via a torsion shaft.

[0008] Preferably, the top of the discharge pipe is connected to the bottom of the inner cavity of the cylinder, and the top of the valve is lower than the bottom of the inner cavity of the cylinder. So that when in use, after the raw materials in the inner cavity of the cylinder are mixed and stirred, the valve is opened so that the raw materials can be smoothly discharged from the bottom of the inner cavity of the cylinder.

[0009] Preferably, the control panel is electrically connected to the heating block, valve, heating plate, motor and two winding blocks respectively via wires. The heating block and heating plate are electrically connected via wires. Multiple buttons are fixedly installed on the front surface of the control panel, so that when in use, the heating block, valve, heating plate, motor and two winding blocks can be started or stopped respectively by the buttons on the front surface of the control panel.

[0010] Preferably, the winding block includes a winding mechanism, a winding roller, and a winding tape wound around the outer surface of the winding roller. The bottom of the winding block is connected to the top of a scraper located at the top of the inner cavity of the cylinder via the winding tape passing through the top of the cylinder. The shape of the middle part of the scraper matches the shape of the outer surface of the cylinder, and the shape of the outer surface of the scraper matches the shape of the outer wall of the inner cavity of the cylinder. Thus, when the scraper is not working, it is fixed to the top of the inner cavity of the cylinder by the winding mechanism, the winding roller, and the winding tape wound around the outer surface of the winding roller in the inner cavity of the winding block. When the winding block is de-energized, the scraper moves downward under its own gravity, thereby scraping off the raw material adhering to the outer surface of the cylinder and the inner wall of the cylinder.

[0011] Preferably, the scraper is divided into an inner ring, an outer ring, and a connecting rod. The inner wall of the inner ring matches the shape of the outer surface of the cylinder, and the outer surface of the outer ring matches the shape of the inner wall of the cylinder. The inner ring and the outer ring are connected by a connecting rod, and the outer surface of the connecting rod is arc-shaped.

[0012] Preferably, the top of the cylinder is fixedly connected to the output shaft at the bottom of the motor, and the strip grooves are evenly opened on the outer surface of the cylinder. After the stirring rod is placed horizontally, the distance between the far end and the center of the cylinder is less than the radius of the cross-section of the inner cavity of the cylinder. Thus, when in use, the motor starts to control the cylinder to rotate, so that the stirring rod is in a perpendicular state to the outer surface of the cylinder under the combined action of the centrifugal force generated by the rotation of the cylinder and the elastic force of the torsion shaft set at the connection between the stirring rod and the top of the inner cavity of the strip groove. In this way, the raw materials in the inner cavity of the cylinder are fully stirred by the horizontally placed stirring rod.

[0013] Preferably, the shape of the cover plate's cross-section is larger than the shape of the inner cavity of the feed pipe. The front side of the bottom of the cover plate is made of magnetic material. The crushing cylinder is located at the connection between the feed pipe and the top of the cylinder. The top of the cover plate has a groove, so that when in use, the operator can rotate the cover plate backward through the groove to open it, exposing the top opening of the feed pipe. Then, the raw material to be added is poured into the inner cavity of the feed pipe. After that, the cover plate is released, and under the action of the torsion shaft, the cover plate automatically flips forward to cover the top opening of the feed pipe. With the help of the magnetic strip, the top opening of the feed pipe is sealed, thereby preventing the debris generated when the crushing cylinder rotates and crushes the raw material from splashing everywhere.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. This low softening point resin raw material mixing device uses a combination of scraper structure and cylindrical structure. During operation, after mixing, the winding mechanism inside the winding block is closed by different buttons on the front of the control panel. The shape of the scraper allows it to move automatically downward under its own gravity, thereby scraping off the raw material adhering to the outer surface of the cylinder and the inner wall of the cylinder, thus avoiding the waste caused by the raw material sticking to the inner shaft of the mixing device after mixing.

[0016] 2. This low softening point resin raw material mixing device, through the combined use of the feed pipe structure and the cover plate structure, allows the cover plate to be rotated backward and opened via the groove during operation. Then, the raw material is poured into the inner cavity of the feed pipe. Afterward, the cover plate is loosened and automatically flipped forward and reset under the action of the torque shaft. With the help of the magnetic strip, the cover plate is tightly fitted to the top opening of the feed pipe, thereby sealing the feed pipe and preventing debris from splashing out of the inner cavity of the feed pipe when the crushing cylinder at the bottom of the inner cavity starts to crush the raw material. This achieves the effect of avoiding raw material waste during the raw material addition process. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view diagram of the overall structure of this utility model;

[0019] Figure 2This is a schematic diagram of the overall structure of this utility model from the top right side.

[0020] Figure 3 This is a schematic diagram of the overall structure of this utility model from the bottom right side.

[0021] Figure 4 This is a schematic diagram of the overall structure of this utility model from the top right side after it has been cut open.

[0022] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A.

[0023] In the diagram: 1. Cylinder; 2. Heating block; 3. Discharge pipe; 4. Valve; 5. Control panel; 6. Heating plate; 7. Rewinding block; 8. Motor; 9. Cylinder; 10. Slot; 11. Stirring rod; 12. Scraper; 13. Feed pipe; 14. Crushing cylinder; 15. Magnetic strip; 16. Cover plate. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figures 1-5As shown, a mixing device for low softening point resin raw materials includes a cylinder 1. A heating block 2 is fixedly installed on the rear side of the bottom of the cylinder 1. A discharge pipe 3 is fixedly installed on the front side of the bottom of the cylinder 1. A valve 4 is fixedly installed in the middle of the inner cavity of the discharge pipe 3. The top of the discharge pipe 3 is connected to the bottom of the inner cavity of the cylinder 1. The top of the valve 4 is lower than the bottom of the inner cavity of the cylinder 1. Thus, during use, after the raw materials in the inner cavity of the cylinder 1 are mixed and stirred, the valve 4 is opened, allowing the raw materials to be smoothly discharged from the bottom of the inner cavity of the cylinder 1. A control panel 5 is fixedly installed on the front side of the outer surface of the cylinder 1. A heating plate 6 is fixedly installed in the inner cavity of the side wall of the cylinder 1. Winding blocks 7 are fixedly installed on both the left and right sides of the top of the cylinder 1. A motor 8 is fixedly installed in the middle of the top of the cylinder 1. The control panel 5 is connected to the cylinder 1 by wires. The heating block 2, valve 4, heating plate 6, motor 8, and two winding blocks 7 are electrically connected. The heating block 2 and heating plate 6 are electrically connected via wires. Multiple buttons are fixedly installed on the front surface of the control panel 5, so that the heating block 2, valve 4, heating plate 6, motor 8, and two winding blocks 7 can be started or stopped respectively by the buttons on the front surface of the control panel 5. A cylinder 9 is rotatably installed in the middle of the inner cavity of the cylinder 1. Multiple strip grooves 10 are opened on the outer surface of the cylinder 9. A stirring rod 11 is rotatably installed on the top of the inner cavity of the strip grooves 10 via a torsion shaft. The top of the cylinder 9 is fixedly connected to the output shaft at the bottom of the motor 8. The strip grooves 10 are evenly opened on the outer surface of the cylinder 9. When the stirring rod 11 is placed horizontally, the distance between the far end and the center of the cylinder 9 is... The radius of the cylinder 9 is smaller than the cross-sectional radius of the inner cavity of the cylinder 1. During use, the motor 8 starts and controls the cylinder 9 to rotate. This causes the stirring rod 11 to be perpendicular to the outer surface of the cylinder 9 under the combined action of the centrifugal force generated by the rotation of the cylinder 9 and the elastic force of the torsion shaft at the connection point between the stirring rod 11 and the top of the inner cavity of the strip groove 10. This allows the horizontally placed stirring rod 11 to fully stir the raw materials inside the cylinder 1. A scraper 12 is provided at the top of the inner cavity of the cylinder 1. The winding block 7 includes a winding mechanism, a winding roller, and a winding tape wound around the outer surface of the winding roller. The bottom of the winding block 7 is connected to the top of the scraper 12 located at the top of the inner cavity of the cylinder 1 via the winding tape. The shape of the middle part of the scraper 12 matches the shape of the outer surface of the cylinder 9, and the shape of the outer surface of the scraper 12 matches the shape of the cylinder. The inner cavity of the cylinder 1 has a matching outer wall shape. When the scraper 12 is not in operation, it is fixed to the top of the inner cavity of the cylinder 1 by the winding mechanism, winding roller, and winding tape wound around the outer surface of the winding roller within the winding block 7. When the winding block 7 is de-energized, the scraper 12 moves downwards under its own weight, scraping off the raw material adhering to the outer surface of the cylinder 9 and the inner wall of the cylinder 1. The scraper 12 consists of an inner ring, an outer ring, and a connecting rod. The inner wall of the inner ring matches the shape of the outer surface of the cylinder 9, and the outer surface of the outer ring matches the shape of the inner wall of the cylinder 1. The inner and outer rings are connected by a connecting rod with an arc-shaped outer surface. A feed pipe 13 is fixedly installed on the front side of the top of the cylinder 1. Multiple crushing cylinders 14 are rotatably installed at the bottom of the inner cavity of the feed pipe 13.A magnetic strip 15 is fixedly installed on the front side of the bottom of the inner cavity of the top opening of the feed pipe 13. A cover plate 16 is rotatably installed on the rear side of the inner cavity of the top opening of the feed pipe 13 via a torsion shaft. The cross-sectional shape of the cover plate 16 is larger than the cross-sectional shape of the inner cavity of the feed pipe 13. The front side of the bottom of the cover plate 16 is made of magnetic material. The crushing cylinder 14 is located at the connection between the feed pipe 13 and the top of the cylinder 1. A groove is opened on the top of the cover plate 16. During use, the operator rotates the cover plate 16 backward through the groove to expose the top opening of the feed pipe 13. Then, the raw material to be added is poured into the inner cavity of the feed pipe 13. After that, the cover plate 16 is released. Under the action of the torsion shaft, the cover plate 16 automatically flips forward to cover the top opening of the feed pipe 13. With the help of the magnetic strip 15, the top opening of the feed pipe 13 is sealed, thereby preventing the debris generated when the crushing cylinder 14 rotates and crushes the raw material from splashing everywhere.

[0026] Working Principle: First, assemble all components correctly. When in use, the operator rotates the cover plate 16 backward through the groove to expose the top opening of the feed pipe 13. Then, pour the raw material into the inner cavity of the feed pipe 13. Afterward, release the cover plate 16; under the action of the torque shaft, the cover plate 16 automatically flips forward to cover the top opening of the feed pipe 13. This, combined with the magnetic strip 15, seals the top opening of the feed pipe 13, preventing debris from scattering when the crushing drum 14 rotates and crushes the raw material. After the raw material enters the inner cavity of the feed pipe 13, different buttons on the front surface of the control panel 5 control the crushing drum 14, motor 8, heating plate 6, and heating block 2 to start. The crushing drum 14 crushes larger raw materials into smaller particles, which then fall into the inner cavity of the drum body 1. Simultaneously, the motor 8 starts, driving the cylinder 9 to rotate, so that the stirring rod 11 is perpendicular to the cylinder 9. The rotating cylinder 9 and stirring rod 11 fully rotate the mixing drum body. The raw material in the inner cavity of cylinder 1 is heated by heating plate 6 while being stirred, thereby improving the rapid melting of the raw material in the inner cavity of cylinder 1 and facilitating rapid stirring. After stirring for a certain period of time, the motor 8, heating block 2, heating plate 6 and winding block 7 are closed and the winding mechanism is opened by controlling the buttons on the front surface of control panel 5. Then, the stirred and mixed raw material is discharged through discharge pipe 3. At the same time, scraper 12 moves downward along the inner wall of cylinder 1 and the outer surface of cylinder 9 under its own gravity, thereby scraping the stirred and mixed raw material adhering to the inner wall of cylinder 1 and the outer surface of cylinder 9 downward. After scraping is completed, the winding mechanism in the inner cavity of winding block 7 is started by controlling the buttons on the front surface of control panel 5, so that the winding roller connected to the winding mechanism rotates and shrinks the winding belt, thereby moving scraper 12 to the top of the inner cavity of cylinder 1 and stopping. Then, raw material is added again and all the above steps are repeated.

[0027] In summary, compared with general similar devices, this mixing device for low softening point resin raw materials has the advantages of avoiding waste caused by raw materials sticking to the inner shaft of the mixing device after stirring and avoiding waste of raw materials during the addition process.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mixing device for low softening point resin raw materials, characterized in that, The cylinder (1) includes a heating block (2) fixedly installed on the rear side of the bottom of the cylinder (1), a discharge pipe (3) fixedly installed on the front side of the bottom of the cylinder (1), a valve (4) fixedly installed in the middle of the inner cavity of the discharge pipe (3), a control panel (5) fixedly installed on the front side of the outer surface of the cylinder (1), a heating plate (6) fixedly installed in the inner cavity of the side wall of the cylinder (1), winding blocks (7) fixedly installed on both the left and right sides of the top of the cylinder (1), a motor (8) fixedly installed in the middle of the top of the cylinder (1), a cylinder (9) rotatably installed in the middle of the inner cavity of the cylinder (1), a plurality of strip grooves (10) are opened on the outer surface of the cylinder (9), a stirring rod (11) is rotatably installed on the top of the inner cavity of the strip grooves (10) through a torsion shaft, and a scraper (12) is provided on the top of the inner cavity of the cylinder (1).

2. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, A feed pipe (13) is fixedly installed on the front side of the top of the cylinder (1). Multiple crushing cylinders (14) are rotatably installed at the bottom of the inner cavity of the feed pipe (13). A magnetic strip (15) is fixedly installed on the front side of the bottom of the inner cavity of the top opening of the feed pipe (13). A cover plate (16) is rotatably installed on the rear side of the inner cavity of the top opening of the feed pipe (13) via a torsion shaft.

3. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, The top of the discharge pipe (3) is connected to the bottom of the inner cavity of the cylinder (1), and the top of the valve (4) is lower than the bottom of the inner cavity of the cylinder (1).

4. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, The control panel (5) is electrically connected to the heating block (2), valve (4), heating plate (6), motor (8) and two winding blocks (7) via wires. The heating block (2) and heating plate (6) are electrically connected via wires. Multiple buttons are fixedly installed on the front surface of the control panel (5).

5. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, The winding block (7) includes a winding mechanism, a winding roller and a winding belt wound around the outer surface of the winding roller. The bottom of the winding block (7) passes through the top of the cylinder (1) and is connected to the top of the scraper (12) located at the top of the inner cavity of the cylinder (1) via the winding belt. The shape of the middle part of the scraper (12) matches the shape of the outer surface of the cylinder (9), and the shape of the outer surface of the scraper (12) matches the shape of the outer wall of the inner cavity of the cylinder (1).

6. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, The scraper (12) is divided into an inner ring, an outer ring and a connecting rod. The inner wall of the inner ring matches the shape of the outer surface of the cylinder (9), and the outer surface of the outer ring matches the shape of the inner wall of the cylinder (1). The inner ring and the outer ring are connected by a connecting rod, and the outer surface of the connecting rod is arc-shaped.

7. The mixing device for low softening point resin raw materials according to claim 1, characterized in that, The top of the cylinder (9) is fixedly connected to the output shaft at the bottom of the motor (8). The strip groove (10) is evenly opened on the outer surface of the cylinder (9). After the stirring rod (11) is placed horizontally, the distance between the far end and the center of the cylinder (9) is less than the radius of the inner cavity cross section of the cylinder (1).

8. A mixing device for low softening point resin raw materials according to claim 2, characterized in that, The shape of the cross-section of the cover plate (16) is larger than the shape of the cross-section of the inner cavity of the feed pipe (13). The front side of the bottom of the cover plate (16) is made of magnetic material. The crushing cylinder (14) is set at the connection between the feed pipe (13) and the top of the cylinder (1). The top of the cover plate (16) has a groove.

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