A plastic powder supply device

Abstract

The utility model relates to a kind of plastic powder feeding device, including receiving ring, the inner wall of receiving ring is provided with stirring mechanism, the bottom of stirring mechanism is provided with azimuth adjusting mechanism, the bottom of azimuth adjusting mechanism is provided with feeding mechanism, the stirring mechanism includes hopper, the inner wall of receiving ring is fixedly installed to hopper, the top of hopper is fixedly installed with mounting bracket, the inner wall of mounting bracket is fixedly installed with first motor, the rotating shaft end of first motor is fixedly installed with rotating rod, rotating rod is fixedly installed with stirring rod on, the cutter is fixed on stirring rod. By being provided with stirring mechanism, its continuous operation can effectively break the caking and aggregation phenomenon between powder, ensure that plastic powder always keeps uniform, loose physical state, this process significantly improves the flowability and dispersibility of powder, to ensure that feeding is continuous and stable, avoid the problem of blockage or interruption of conveying due to powder agglomeration.

Description

Technical Field

[0001] This utility model relates to the field of plastic powder technology, specifically to a plastic powder feeding device. Background Technology

[0002] In the industrial applications of plastic powders, such as additive manufacturing, powder coatings, and injection molding, the stability and accuracy of the feeding device have a decisive impact on the quality of the final product.

[0003] Currently, conventional feeding devices in existing technologies still have many limitations in practical applications: First, powder is prone to agglomeration in the hopper due to electrostatic force, moisture absorption, etc., leading to conveying interruptions, requiring manual intervention, and seriously disrupting production continuity; Second, most devices lack flexible directional adjustment capabilities, making it difficult to adapt to complex and ever-changing production line layouts and multi-station feeding needs, thus limiting their practicality; Third, traditional continuous feeding modes are prone to causing excessive powder supply at one time, which not only causes fluctuations in subsequent mixing or sintering processes and affects processing uniformity, but may also lead to equipment overload, raw material spillage and waste, and even increase the risk of downtime maintenance.

[0004] Therefore, a plastic powder feeding device is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a plastic powder feeding device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic powder feeding device, including a receiving ring, a stirring mechanism provided on the inner wall of the receiving ring, an orientation adjustment mechanism provided at the bottom end of the stirring mechanism, a feeding mechanism provided at the bottom end of the orientation adjustment mechanism, the stirring mechanism including a hopper, the hopper being fixedly installed on the inner wall of the receiving ring, an mounting frame being fixedly installed at the top end of the hopper, a first motor being fixedly installed on the inner wall of the mounting frame, a rotating rod being fixedly installed on the shaft end of the first motor, a stirring rod being fixedly installed on the rotating rod, and a cutter being fixedly installed on the stirring rod;

[0007] The orientation adjustment mechanism includes a mounting ring, which is rotatably connected to the bottom end of the hopper. A gear ring is fixedly mounted on the mounting ring. A bracket is fixed to the surface of the hopper. A second motor is fixed to the bottom end of the bracket. A gear is fixed to the shaft end of the second motor. The gear meshes with the gear ring.

[0008] The feeding mechanism includes a conveying pipe, a first screw rod, and a driving block. The conveying pipe is fixedly installed at the bottom end of the mounting ring, and the bottom end of the hopper is connected to the conveying pipe. The first screw rod is rotatably connected to the inner wall of the conveying pipe, and the driving block is fixedly installed at one end of the first screw rod.

[0009] Preferably, a fixing frame is fixedly installed on the surface of the receiving ring, the fixing frame is C-shaped, and the receiving ring is circular.

[0010] Preferably, the first motor is vertically arranged, the rotating rod is cylindrical, and a second helical rod is fixedly installed at the bottom end of the rotating rod, the second helical rod being vertically arranged.

[0011] Preferably, the stirring rod is horizontally positioned, and a scraper is fixedly installed at one end of the stirring rod, with three scrapers in total.

[0012] Preferably, the second motor is vertically arranged, while the gear and the gear ring are both horizontally arranged.

[0013] Preferably, the drive block has three limiting grooves and three drive grooves, which are evenly distributed in a ring around the first helical rod.

[0014] Preferably, a third motor is fixedly installed at one end of the conveying pipe, a drive rod is fixedly installed at the shaft end of the third motor, and a limit block is fixedly installed on the drive rod.

[0015] Compared with the prior art, the present invention provides a plastic powder feeding device, which has the following beneficial effects:

[0016] 1. This utility model, by setting up a stirring mechanism, can effectively break up the agglomeration and clumping of powders through continuous operation, ensuring that the plastic powder always maintains a uniform and loose physical state. This process significantly improves the flowability and dispersibility of the powder, thereby ensuring continuous and stable feeding and avoiding blockage or conveying interruption caused by powder agglomeration. At the same time, the uniform powder state is also conducive to improving the accuracy and consistency of subsequent metering or mixing processes, providing a solid foundation for the smoothness of the overall production process and the stability of product quality.

[0017] 2. This utility model, by setting an orientation adjustment mechanism, can conveniently adjust the orientation of the feeding outlet, significantly enhancing the equipment's adaptability to diverse production layouts and process requirements, and meeting the needs of multiple material conveying paths, effectively expanding the application scope. It can quickly respond to the material supply tasks of different workstations without re-laying pipes or moving the host, greatly improving the organizational flexibility and space utilization efficiency of the production line.

[0018] 3. This utility model, by setting up a feeding mechanism, can realize intermittent feeding, effectively control the amount of powder conveyed each time, avoid overload, spillage or process fluctuation caused by excessive feeding at one time, ensure that the subsequent processing stage can obtain a continuous and stable powder supply, significantly improve the uniformity and consistency of the processing process, and at the same time, quantitative control reduces the risk of equipment failure caused by excessive load, thereby ensuring the continuous, efficient and stable operation of the production line.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a plastic powder feeding device proposed in this utility model.

[0021] Figure 2 This is a side view of the overall structure of a plastic powder feeding device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the drive block of a plastic powder feeding device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the stirring mechanism of a plastic powder feeding device proposed in this utility model;

[0024] Figure 5 This is a schematic diagram of the orientation adjustment mechanism of a plastic powder feeding device proposed in this utility model.

[0025] In the diagram: 1. Receiving ring; 21. Hopper; 22. Mounting frame; 23. Second auger; 24. Cutter; 25. Rotating rod; 26. Scraper; 27. Mixing rod; 28. First motor; 31. Gear ring; 32. Mounting ring; 33. Gear; 34. Second motor; 35. Bracket; 41. Conveying pipe; 42. First auger; 43. Drive block; 44. Drive rod; 45. Drive groove; 46. Third motor; 47. Limiting block; 48. Limiting slide; 5. Fixing frame. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] Please see Figure 1 - Figure 5 This embodiment of a plastic powder feeding device includes a receiving ring 1. A stirring mechanism is provided on the inner wall of the receiving ring 1 to stir and break up the plastic powder, preventing it from clumping. A position adjustment mechanism is provided at the bottom of the stirring mechanism to facilitate adjustment of the feeding position of the plastic powder, improving the practicality of the feeding device. A feeding mechanism is provided at the bottom of the position adjustment mechanism to provide intermittent feeding, preventing excessive feeding at once from affecting subsequent plastic powder processing. The stirring mechanism includes a hopper 21, which is fixedly installed... The hopper 21 is located on the inner wall of the receiving ring 1 and is used to hold plastic powder. A mounting frame 22 is fixedly installed on the top of the hopper 21. The mounting frame 22 is used to support the installation of the first motor 28. The first motor 28 is fixedly installed on the inner wall of the mounting frame 22 and is used to drive the rotating rod 25 to rotate. A rotating rod 25 is fixedly installed on the shaft end of the first motor 28 and is used to support the installation of the stirring rod 27. The stirring rod 27 is fixedly installed on the rotating rod 25 and is used to stir the powder. A cutter 24 is fixed on the stirring rod 27 and is used to break up clumps of powder.

[0029] The orientation adjustment mechanism includes a mounting ring 32, which is rotatably connected to the bottom of the hopper 21. The mounting ring 32 is used to support the mounting of the gear ring 31. The gear ring 31 is fixedly mounted on the mounting ring 32 and is used to mesh with the gear 33. A bracket 35 is fixed to the surface of the hopper 21. The bracket 35 is used to support the mounting of the second motor 34. The bottom end of the bracket 35 is fixed to the second motor 34. The second motor 34 has forward and reverse rotation functions and is used to drive the gear 33 to rotate. The shaft end of the second motor 34 is fixed with the gear 33, which meshes with the gear ring 31. By setting the gear 33 and the gear ring 31, the second motor 34 drives the mounting ring 32 to rotate when it is working.

[0030] The feeding mechanism includes a conveying pipe 41, a first screw rod 42, and a drive block 43. The conveying pipe 41 is fixedly installed at the bottom end of the mounting ring 32. The conveying pipe 41 is used to support the installation of the first screw rod 42. The bottom end of the hopper 21 is connected to the conveying pipe 41. The first screw rod 42 is rotatably connected to the inner wall of the conveying pipe 41. The first screw rod 42 is used to drive the plastic powder to move along the inner wall of the conveying pipe 41, thereby achieving the purpose of conveying the plastic powder. The drive block 43 is fixedly installed at one end of the first screw rod 42.

[0031] A fixing bracket 5 is fixedly installed on the surface of the receiving ring 1. The fixing bracket 5 is C-shaped and is used to install the receiving ring 1, which is circular in shape.

[0032] The first motor 28 is vertically positioned and is used to drive the rotating rod 25 to rotate. The rotating rod 25 is cylindrical in shape, and a second spiral rod 23 is fixedly installed at the bottom end of the rotating rod 25. The second spiral rod 23 is vertically positioned and is used to convey plastic powder in the hopper 21 into the conveying pipe 41.

[0033] The stirring rod 27 is set horizontally, and a scraper 26 is fixedly installed at one end of the stirring rod 27. There are three scrapers 26, which are used to clean the inner wall of the hopper 21.

[0034] The second motor 34 is set vertically and is used to drive the gear 33 to rotate. Both the gear 33 and the gear ring 31 are set horizontally.

[0035] The drive block 43 has three limiting grooves 48 and three drive grooves 45. The three limiting grooves 48 and drive grooves 45 are evenly distributed in a ring around the first spiral rod 42. The limiting groove 48 is arc-shaped and is used to support the sliding of the limiting block 47. The drive groove 45 is strip-shaped and is used to support the insertion of the drive rod 44.

[0036] A third motor 46 is fixedly installed at one end of the conveying pipe 41. The third motor 46 is used to drive the drive rod 44 to rotate. The drive rod 44 is fixedly installed at the shaft end of the third motor 46. The drive rod 44 is used to be inserted into the drive groove 45. A limit block 47 is fixedly installed on the drive rod 44. The limit block 47 is used to slide on the inner wall of the limit slide groove 48, thereby limiting the drive block 43.

[0037] When plastic powder needs to be supplied, the second motor 34 is started according to the feeding position. The second motor 34 drives the gear 33 to rotate. The gear 33 meshes with the gear ring 31, which drives the mounting ring 32 to rotate through the gear ring 31. When the mounting ring 32 rotates, it will drive the conveying pipe 41 to move until the conveying end of the conveying pipe 41 moves to the appropriate position.

[0038] After the feeding position is adjusted, the plastic powder is put into the hopper 21, and the first motor 28 and the third motor 46 are started. The first motor 28 drives the stirring rod 27 to rotate through the rotating rod 25. When the stirring rod 27 rotates, it will drive the scraper 26 and the cutter 24 to rotate. During the above movement, the stirring rod 27, the cutter 24 and the scraper 26 will stir and break up the plastic powder to prevent the plastic powder from clumping together. In addition, during the rotation of the rotating rod 25, it will also drive the second spiral rod 23 to rotate. The second spiral rod 23 will evenly transport the plastic powder into the conveying pipe 41.

[0039] While the first motor 28 is operating, the third motor 46 drives the drive rod 44 and the limit block 47 to rotate, as shown in the attached figure. Figure 3 As shown, the limiting block 47 is located on the inner wall of the limiting groove 48. As the limiting block 47 and the driving rod 44 rotate, when the driving rod 44 is inserted into the driving groove 45, the limiting block 47 disengages from the limiting groove 48. As the driving rod 44 rotates, it will drive the driving block 43 to rotate through the driving groove 45 until the driving rod 44 leaves the driving groove 45. At this time, the limiting block 47 moves back into the limiting groove 48, thereby achieving the function of limiting the movement of the driving block 43 until the driving rod 44 is inserted into the driving groove 45 again. With the above settings, the driving block 43 will perform one-third intermittent circular motion under the drive of the driving rod 44 and the limiting block 47. During the movement, the driving block 43 will drive the first spiral rod 42 to perform one-third intermittent circular motion, which is beneficial for the first spiral rod 42 to intermittently convey plastic powder.

[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] 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 plastic powder feeding device, comprising a receiving ring (1), characterized in that: The inner wall of the receiving ring (1) is provided with a stirring mechanism, the bottom end of the stirring mechanism is provided with an orientation adjustment mechanism, and the bottom end of the orientation adjustment mechanism is provided with a feeding mechanism. The stirring mechanism includes a hopper (21), which is fixedly installed on the inner wall of the receiving ring (1). A mounting frame (22) is fixedly installed on the top of the hopper (21). A first motor (28) is fixedly installed on the inner wall of the mounting frame (22). A rotating rod (25) is fixedly installed on the shaft end of the first motor (28). A stirring rod (27) is fixedly installed on the rotating rod (25). A cutter (24) is fixedly installed on the stirring rod (27). The orientation adjustment mechanism includes a mounting ring (32), which is rotatably connected to the bottom end of the hopper (21). A gear ring (31) is fixedly mounted on the mounting ring (32). A bracket (35) is fixed on the surface of the hopper (21). A second motor (34) is fixed at the bottom end of the bracket (35). A gear (33) is fixed at the shaft end of the second motor (34). The gear (33) meshes with the gear ring (31). The feeding mechanism includes a conveying pipe (41), a first screw rod (42), and a driving block (43). The conveying pipe (41) is fixedly installed at the bottom end of the mounting ring (32). The bottom end of the hopper (21) is connected to the conveying pipe (41). The first screw rod (42) is rotatably connected to the inner wall of the conveying pipe (41). The driving block (43) is fixedly installed at one end of the first screw rod (42).

2. The plastic powder feeding device according to claim 1, characterized in that: A fixing frame (5) is fixedly installed on the surface of the receiving ring (1). The fixing frame (5) is C-shaped, and the receiving ring (1) is circular.

3. The plastic powder feeding device according to claim 1, characterized in that: The first motor (28) is vertically arranged, the rotating rod (25) is cylindrical, and a second spiral rod (23) is fixedly installed at the bottom end of the rotating rod (25). The second spiral rod (23) is vertically arranged.

4. A plastic powder feeding device according to claim 1, characterized in that: The stirring rod (27) is set horizontally, and a scraper (26) is fixedly installed at one end of the stirring rod (27). There are three scrapers (26).

5. A plastic powder feeding device according to claim 1, characterized in that: The second motor (34) is vertically arranged, while the gear (33) and the gear ring (31) are both horizontally arranged.

6. A plastic powder feeding device according to claim 1, characterized in that: The drive block (43) has a limiting groove (48) and a drive groove (45). There are three limiting grooves (48) and three drive grooves (45). The three limiting grooves (48) and three drive grooves (45) are evenly distributed in a ring around the first spiral rod (42).

7. A plastic powder feeding device according to claim 1, characterized in that: A third motor (46) is fixedly installed at one end of the conveying pipe (41), and a drive rod (44) is fixedly installed at the shaft end of the third motor (46). A limit block (47) is fixedly installed on the drive rod (44).

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