Preheating equipment of melamine tableware forming machine

Abstract

The utility model relates to the technical field of melamine product processing, and discloses a melamine tableware forming machine preheating device which comprises a control box used for preheating raw materials, the top of the inner wall of the control box is rotationally connected with a driving rod, and the outer wall of the driving rod is fixedly connected with a protective shell. A plurality of stirring rods are rotationally connected to the left side and the right side of the outer wall of the protective shell, the close ends of the stirring rods on the left side and the right side are connected with the outer wall of the driving rod through transmission assemblies so as to drive the stirring rods to rotate, an injection molding hole is formed in the bottom of the control box, and a feeding opening is formed in the top of the control box. Radiators are arranged on the left side and the right side of the control box. According to the utility model, the fixing of the filter screen is relieved by sliding the limiting insertion block upwards, and the limiting sliding block is pulled out to abut against the limiting insertion block, so that the limiting insertion block is prevented from resetting under the action of the limiting spring, and the filter screen is more convenient to maintain and replace.

Description

Technical Field

[0001] This utility model relates to the field of melamine product processing technology, and in particular to a preheating device for a melamine tableware molding machine. Background Technology

[0002] Melamine is melamine resin, a high-molecular polymer whose monomers are formaldehyde and melamine. Melamine is a thermosetting plastic with a dense structure, high hardness, and is not easily broken. It also has a high heat distortion temperature, strong impact resistance, and flexural strength, making melamine tableware widely used in the catering industry. The preparation of melamine tableware begins with weighing the molding material according to requirements. The molding material is then placed in a container for preheating. After preheating, the melamine resin is placed in a mold for pre-pressing. Currently, during the preheating process of melamine tableware, the high-frequency electron tube oscillator inside the control box generates a large amount of heat. If this heat is not dissipated in time, it can affect the oscillator. Existing solutions typically involve installing a fan to dissipate heat from the oscillator through the fan and ventilation holes. Additionally, a filter is usually installed to prevent impurities and melamine powder from entering the control box.

[0003] However, the filter screen is currently fixed in place, making it inconvenient to replace when it is damaged. This can lead to external impurities and melamine powder entering the control box through the heat dissipation holes and damaging the high-frequency electronic oscillator. In response to this technical problem, this application proposes a preheating device for a melamine tableware forming machine. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a preheating device for a melamine tableware forming machine. By sliding the upper limit block upwards, the filter screen can be released from its fixation. The limit slider can be pulled out to hold the limit block in place, preventing the limit block from resetting under the action of the limit spring. This makes it easier to maintain and replace the filter screen and prevents external impurities and melamine powder from entering the control box through the radiator and damaging the high-frequency electronic oscillator.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A preheating device for a melamine tableware molding machine includes a control box for preheating raw materials. A drive rod is rotatably connected to the top of the inner wall of the control box, and a protective shell is fixedly connected to the outer wall of the drive rod. Multiple stirring rods are rotatably connected to the left and right sides of the outer wall of the protective shell. The ends of the stirring rods on the left and right sides are connected to the outer wall of the drive rod through a transmission assembly to drive the stirring rods to rotate. A molding hole is provided at the bottom of the control box, and a feed inlet is provided at the top of the control box. Radiators are provided on both the left and right sides of the control box, and a filter screen is connected to the top of the radiator through a limiting assembly to limit the position of the filter screen.

[0007] Furthermore, the transmission assembly includes a plurality of first bevel gears fixedly connected to the outer wall of the drive rod, and a second bevel gear fixedly connected to the near end of the stirring rod on both the left and right sides. The bottom of the near side of the outer wall of the second bevel gear on both the left and right sides meshes with the top left and right sides of the outer wall of the first bevel gear.

[0008] Furthermore, the limiting component includes a connecting block fixedly connected to the top of the radiator, the bottom of the filter screen is inserted into the top of the outer wall of the connecting block, two sliding grooves are opened on both the front and rear sides of the radiator, a limiting spring is provided inside the sliding groove, and the inner walls of the sliding grooves on both the front and rear sides are slidably connected to the limiting blocks, and the bottom of the two limiting blocks are inserted into the front and rear sides of the top of the filter screen on one side close to the bottom.

[0009] Furthermore, one end of the limiting spring is fixedly connected to the bottom side of the inner wall of the slide groove, and the other end of the limiting spring is fixedly connected to the bottom side of the limiting block.

[0010] Furthermore, the radiator is slidably connected to both the front and rear sides by limit sliders, with the top side of the limit slider abutting against the bottom side of the limit plug.

[0011] Furthermore, a servo motor is fixedly connected to the top of the control box, and the drive end of the servo motor is fixedly connected to the top of the drive rod.

[0012] Furthermore, scrapers are fixedly connected to both the front and rear sides of the bottom of the outer wall of the protective shell, and the two scrapers abut against the inner wall of the control box on the opposite side.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the filter screen is released by sliding the limit block upward, and the limit slider is pulled out to hold the limit block, preventing the limit block from resetting under the action of the limit spring. This makes it more convenient to repair and replace the filter screen, and prevents external impurities and melamine powder from entering the control box through the heat sink and damaging the high-frequency electronic oscillator.

[0015] 2. In this invention, the protective shell and stirring rod rotate around the driving rod by rotating the driving rod. At the same time, the first bevel gear meshes with the second bevel gear, causing the stirring rod to rotate and stir the melamine powder in the control box, preventing uneven heating of the melamine powder. Attached Figure Description

[0016] Figure 1 This is a perspective view of a preheating device for a melamine tableware forming machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the stirring rod of a preheating device for a melamine tableware molding machine according to the present invention;

[0018] Figure 3 This is a schematic diagram of the drive rod of a preheating device for a melamine tableware forming machine according to the present invention;

[0019] Figure 4 This is a schematic diagram of the first bevel gear of the preheating device for a melamine tableware forming machine proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of a connecting plug for a preheating device of a melamine tableware forming machine according to the present invention;

[0021] Figure 6 This is a schematic diagram of a limit spring for a preheating device of a melamine tableware forming machine according to the present invention.

[0022] Legend:

[0023] 1. Control box; 2. Radiator; 3. Servo motor; 4. Injection hole; 5. Limit spring; 6. Drive rod; 7. Protective shell; 8. Stirring rod; 9. Scraper; 10. First bevel gear; 11. Second bevel gear; 12. Filter screen; 13. Limiting block; 14. Limiting slider; 15. Connecting block. Detailed Implementation

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

[0025] Reference Figures 1-3This utility model provides an embodiment of a melamine tableware forming machine preheating device, comprising a control box 1 for preheating raw materials. A drive rod 6 is rotatably connected to the top of the inner wall of the control box 1. A protective shell 7 is fixedly connected to the outer wall of the drive rod 6. Multiple stirring rods 8 are rotatably connected to both sides of the outer wall of the protective shell 7. Rotation of the drive rod 6 causes the protective shell 7 and the stirring rods 8 to rotate around the drive rod 6. Multiple first bevel gears 10 are fixedly connected to the outer wall of the drive rod 6. Second bevel gears 11 are fixedly connected to the adjacent ends of the stirring rods 8 on both sides. The outer walls of the second bevel gears 11 on both sides... The bottom of the first bevel gear 10 is meshed with the top left and right sides of the outer wall of the first bevel gear 10. As the drive rod 6 rotates, the first bevel gear 10 rotates and meshes with the second bevel gear 11, causing the second bevel gear 11 to rotate, which in turn drives the stirring rod 8 to rotate. The bottom of the control box 1 has a molding hole 4 through which preheated raw materials are output for molding. The top of the control box 1 has a feed inlet, through which materials are injected into the control box 1 for preheating. A servo motor 3 is fixedly connected to the top of the control box 1, and the drive end of the servo motor 3 is fixedly connected to the top of the drive rod 6, causing the drive rod 6 to rotate. (Refer to...) Figure 3 and Figure 4 Scrapers 9 are fixedly connected to the bottom front and rear sides of the outer wall of the protective shell 7. The two scrapers 9 are separated by one side and abut against the inner wall of the control box 1 to scrape the material against the inner wall of the control box 1.

[0026] Reference Figure 1 , Figure 5 and Figure 6 The control box 1 has radiators 2 on both the left and right sides to dissipate heat from the control box 1. A connecting block 15 is fixedly connected to the top of the radiator 2. The bottom of the filter screen 12 is inserted into the top of the outer wall of the connecting block 15 to prevent the filter screen 12 from shifting when connected to the top of the radiator 2. Two sliding grooves are opened on the front and rear sides of the radiator 2. Limiting springs 5 ​​are installed inside the sliding grooves. Limiting blocks 13 are slidably connected to the inner walls of the front and rear sliding grooves. The bottom of the two limiting blocks 13 is inserted into the front and rear sides of the top of the filter screen 12. One end of the limiting spring 5 is fixedly connected to the bottom side of the inner wall of the sliding groove, and the other end of the limiting spring 5 is fixedly connected to the bottom side of the limiting block 13. Under the action of the limiting spring 5, the limiting block 13 rebounds and resets to lock the filter screen 12 to limit the filter screen 12. Limiting sliders 14 are slidably connected to the front and rear sides of the radiator 2. The top side of the limiting slider 14 abuts against the bottom side of the limiting block 13 to lock the limiting block 13 when the filter screen 12 is removed.

[0027] Working principle: At the start of operation, the material is injected into the control box 1 through the feed inlet for preheating. Simultaneously, the servo motor 3 is started, driving the drive rod 6 to rotate. The rotation of the drive rod 6 causes the protective shell 7 and the stirring rod 8 to rotate around the drive rod 6. While the drive rod 6 is rotating, the first bevel gear 10 rotates and meshes with the second bevel gear 11, driving the second bevel gear 11 to rotate. The rotation of the second bevel gear 11 causes the stirring rod 8 to rotate, stirring the melamine powder in the control box 1 and preventing uneven heating of the melamine powder. When the melamine powder is heated, the radiator 2 dissipates heat to the control box 1. The filter screen 12 prevents impurities and melamine powder from entering the control box 1. When the filter screen 12 is damaged, the upward sliding limit block 13 releases the fixation of the filter screen 12. The limit slider 14 is pulled out to block the limit block 13, preventing the limit block 13 from resetting under the action of the limit spring 5. The filter screen 12 is pulled off the connecting block 15 for replacement and maintenance. The filter screen 12 is then aligned with the connecting block 15 and lowered. The limit slider 14 is pushed back into the radiator 2. Under the action of the limit spring 5, the limit block 13 springs back to reset and limits the filter screen 12.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A preheating device for a melamine tableware molding machine, characterized in that, The control box (1) is used to preheat the raw materials. A drive rod (6) is rotatably connected to the top of the inner wall of the control box (1). A protective shell (7) is fixedly connected to the outer wall of the drive rod (6). Multiple stirring rods (8) are rotatably connected to the left and right sides of the outer wall of the protective shell (7). The ends of the stirring rods (8) on the left and right sides are connected to the outer wall of the drive rod (6) through a transmission assembly to drive the stirring rods (8) to rotate. A molding hole (4) is provided at the bottom of the control box (1). A feed inlet is provided at the top of the control box (1). A radiator (2) is provided on the left and right sides of the control box (1). A filter screen (12) is connected to the top of the radiator (2) through a limiting assembly to limit the filter screen (12).

2. The melamine tableware molding machine preheating equipment according to claim 1, characterized in that: The transmission assembly includes multiple first bevel gears (10) fixedly connected to the outer wall of the drive rod (6), and second bevel gears (11) fixedly connected to the near ends of the stirring rods (8) on both the left and right sides. The bottom of the near side of the outer wall of the second bevel gears (11) on both the left and right sides meshes with the top left and right sides of the outer wall of the first bevel gears (10).

3. The preheating equipment for a melamine tableware forming machine according to claim 1, characterized in that: The limiting component includes a connecting block (15) fixedly connected to the top of the radiator (2). The bottom of the filter screen (12) is inserted into the top of the outer wall of the connecting block (15). Two sliding grooves are opened on both the front and rear sides of the radiator (2). A limiting spring (5) is provided inside the sliding groove. A limiting block (13) is slidably connected to the inner wall of the sliding groove on both the front and rear sides. The bottom of the two limiting blocks (13) is close to each other and inserted into the front and rear sides of the top of the filter screen (12).

4. The melamine tableware molding machine preheating equipment according to claim 3, characterized in that: One end of the limiting spring (5) is fixedly connected to the bottom side of the inner wall of the slide groove, and the other end of the limiting spring (5) is fixedly connected to the bottom side of the limiting block (13).

5. The melamine tableware molding machine preheating equipment according to claim 3, characterized in that: The radiator (2) has a limit slider (14) slidably connected to both the front and rear sides, and the top side of the limit slider (14) abuts against the bottom side of the limit plug (13).

6. The preheating equipment for a melamine tableware molding machine according to claim 1, characterized in that: A servo motor (3) is fixedly connected to the top of the control box (1), and the driving end of the servo motor (3) is fixedly connected to the top of the driving rod (6).

7. The preheating equipment for a melamine tableware molding machine according to claim 1, characterized in that: The protective shell (7) has scrapers (9) fixedly connected to the front and rear sides of the bottom of the outer wall, and the two scrapers (9) are in contact with the inner wall of the control box (1) on the opposite side.

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