A fragment feeding mechanism for powder coating production

Abstract

This utility model discloses a fragment feeding mechanism for powder coating production, including a support frame. A suction component is provided on one outer wall of the top of the support frame, and a material cylinder assembly is provided on the other outer wall of the top of the support frame. The material cylinder assembly includes a material cylinder and two cylinders. A cylinder cover is bolted to the top of the material cylinder, and an installation port is opened on one outer wall of the top of the cylinder cover. A cover plate is installed on one outer wall of the top of the cylinder cover via a movable hinge. The tops of the two cylinders are bolted to the outer walls of the bottom of the support frame. A material holding plate is slidably inserted inside the material cylinder, and a heating element is bolted to the bottom outer wall of the material holding plate. This utility model uses cylinders to drive the material holding plate to rise and fall inside the material cylinder. The material holding plate pushes the fragments upward. At the same time, because the cross-section of the material holding plate is conical, the fragments inside the material holding cylinder move towards the center of the material holding plate, which facilitates the negative pressure adsorption of fragments by the suction pipe. Moreover, during negative pressure suction, residual fragments at the bottom and edges of the material cylinder can be thoroughly removed.

Description

Technical Field

[0001] This utility model relates to the field of powder coating production technology, specifically to a fragment feeding mechanism for powder coating production. Background Technology

[0002] Powder coating is a type of solid coating that exists in the form of fine powder. Powder coatings are divided into two main categories: thermoplastic powder coatings and thermosetting powder coatings. Powder coating is a new type of solvent-free, 100% solid powder coating. It is transferred in powder form onto the substrate, melts upon baking, and cures to form a film. It is a special type of coating. In the production and processing of powder coatings, a corresponding feeder mechanism is needed to transport and feed the raw materials. This feeder mechanism, also known as a material feeder, is widely used in the raw material conveying industry for equipment such as injection molding machines and extruders. It features convenient installation, simple operation, strong long-distance conveying capacity, stable production, and reliable operation, making it an auxiliary equipment for achieving fully automated production.

[0003] For example, a powder coating production fragment feeding mechanism, with application number CN202421171238.6 and authorization announcement date of 20250304, includes a support mechanism and a suction mechanism for automatically feeding powder coating fragments. The suction mechanism is installed above the support mechanism. This utility model, by setting up a suction mechanism, starts the suction machine body and motor. The motor drives a gear to rotate via a shaft. The gear rotation drives a rack to descend, which in turn drives a lifting plate and a lifting pipe to descend. The lifting pipe descends and extends into the material cylinder. Powder coating fragments in the central area of ​​the material cylinder, under negative pressure, enter the suction machine body through the lifting pipe and the fixed pipe. As the lifting pipe continues to descend, powder coating fragments in the outer area of ​​the material cylinder gradually flow towards the central area. When the lifting pipe descends to the corresponding position, all the powder coating fragments in the material cylinder are sucked into the suction machine body.

[0004] To address the problem of powder coating fragments being difficult to adsorb at the bottom of the feed cylinder during the feeding process of the fragment feeding mechanism, existing technologies use an adjustable suction pipe structure to achieve the feeding purpose. However, the adjustable suction pipe structure is relatively complex and costly, and its exposed nature makes it susceptible to powder contamination, increasing maintenance costs. Therefore, there is an urgent need to design a fragment feeding mechanism for powder coating production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fragment feeding mechanism for powder coating production, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A powder coating production fragment feeding mechanism includes a support frame. A suction component is provided on one outer wall of the top of the support frame, and a material cylinder assembly is provided on the other outer wall of the top of the support frame. The material cylinder assembly includes a material cylinder and two cylinders. A cylinder cover is bolted to the top of the material cylinder, and an installation opening is provided on one outer wall of the top of the cylinder cover. A cover plate is bolted to one outer wall of the top of the cylinder cover. The tops of the two cylinders are bolted to the outer walls of the bottom of the support frame. A material holding plate is slidably inserted inside the material cylinder, and a heating element is bolted to the outer wall of the bottom of the material holding plate. The output end of the cylinder is fixedly connected to the material holding plate by bolts.

[0008] Furthermore, the suction assembly includes a tank, and a suction pipe is inserted into the outer wall of one side of the tank, with one end of the suction pipe inserted into the installation port.

[0009] Furthermore, a can lid is bolted to the top of the can body, and a vacuum pump is bolted to the center of the top of the can lid. A filter screen is bolted to the outer wall of one side of the bottom of the can lid.

[0010] Furthermore, the bottom of the tank is provided with a placement groove, and an elastic tube is installed on the top of the inner wall of the placement groove by bolts, and a material holding cylinder is installed on the bottom of the elastic tube by bolts.

[0011] Furthermore, the suction assembly also includes two mounting brackets, which are bolted to the outer wall of one side of the bottom of the support, and a mounting cylinder is bolted between the two mounting brackets.

[0012] Furthermore, a weighing sensor is bolted to the bottom of the inner wall of the mounting cylinder, the bottom end of the material container is in contact with the weighing sensor, and a material conveying valve pipe is threaded to the bottom end of the material container.

[0013] In the above technical solution, the powder coating production fragment feeding mechanism provided by this utility model has the following beneficial effects:

[0014] (1) By setting the material cylinder assembly, the material holding plate is driven by the cylinder to rise and fall inside the material cylinder. The material holding plate will push the fragments upward. At the same time, since the material holding plate has a conical cross section, the fragments inside the material cylinder will move towards the center of the material holding plate, which facilitates the negative pressure adsorption of fragments by the suction pipe. When the material is suctioned under negative pressure, the residual fragments at the bottom and edge of the material cylinder can be completely removed.

[0015] (2) When the suction pipe is under negative pressure, the heating plate is activated by setting the heating plate. The heating plate at the bottom of the material plate can locally heat the raw material above the material plate to prevent the fragments from getting damp and clumping. This ensures that the suction pipe can completely adsorb the fragments in the bottom edge area of ​​the material cylinder and avoid residue.

[0016] (3) Through the installation frame, installation cylinder and weighing sensor, the weighing sensor in the suction assembly is in direct contact with the material cylinder, which can monitor the weight of the adsorbed fragments in real time. Combined with the automatic control of the opening of the upper valve of the conveying valve pipe, the precise feeding amount can be adjusted, reducing manual intervention error and improving the level of production automation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a fragment feeding mechanism for powder coating production according to the present invention.

[0019] Figure 2 This is a schematic diagram of the material suction component structure provided in an embodiment of a powder coating production fragment feeding mechanism of this utility model.

[0020] Figure 3 This is a schematic diagram of the tube body and mounting frame structure provided for an embodiment of a fragment feeding mechanism for powder coating production according to this utility model.

[0021] Figure 4 This is a schematic diagram of the material cylinder assembly structure provided in an embodiment of a fragment feeding mechanism for powder coating production according to this utility model.

[0022] Figure 5 This is a schematic diagram of the material cylinder, cylinder, and material holding plate provided for an embodiment of a fragment feeding mechanism for powder coating production according to this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support frame; 2. Suction assembly; 3. Material cylinder assembly; 4. Tank body; 5. Suction pipe; 6. Mounting frame; 7. Mounting cylinder; 8. Material conveying valve pipe; 9. Tank cover; 10. Vacuum pump; 11. Filter screen; 12. Placement groove; 13. Flexible tubing; 14. Material holding cylinder; 15. Weighing sensor; 16. Material cylinder; 17. Cylinder cover; 18. Cover plate; 19. Cylinder; 20. Material holding plate; 21. Heating element; 22. Mounting port. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5As shown in the figure, the present invention provides a powder coating production fragment feeding mechanism, including a support 1, a suction component 2 on one side of the top of the support 1, and a material cylinder assembly 3 on the other side of the top of the support 1. The material cylinder assembly 3 includes a material cylinder 16 and two cylinders 19. A cylinder cover 17 is bolted to the top of the material cylinder 16, and an installation port 22 is opened on one side of the top of the cylinder cover 17. A cover plate 18 is installed on one side of the top of the cylinder cover 17 via a movable hinge. The tops of the two cylinders 19 are bolted to the bottom two sides of the support 1. A material holding plate 20 is slidably inserted into the inside of the material cylinder 16, and a heating element 21 is bolted to the bottom outer wall of the material holding plate 20. The output end of the cylinder 19 is fixedly connected to the material holding plate 20 via bolts.

[0027] Specifically, in this embodiment, a support frame 1 is included. The support frame 1 provides a supporting base for the suction assembly 2 and the cylinder assembly 3. Suction and storage areas are respectively set on both sides of the top to optimize space utilization. The suction assembly 2 is provided on one outer wall of the top of the support frame 1, and the cylinder assembly 3 is provided on the other outer wall of the top of the support frame 1. The cylinder assembly 3 includes a cylinder 16 and two cylinders 19. The cylinders 19 are preferably SMC. The CDQ2B series double-acting cylinder has a barrel 16 that serves as a temporary storage container for fragments. A barrel cover 17 is bolted on and has a mounting port 22 at the top for inserting a suction pipe 5. The barrel cover 17 is bolted to the top of the barrel 16 and opens and closes quickly via a hinge, facilitating manual feeding or cleaning of the barrel 16. A mounting port 22 is located on one side of the top of the barrel cover 17, and a cover plate 18 is mounted on the other side of the top of the barrel cover 17 via a hinge. Two cylinders 19 are bolted to the bottom sides of the support frame 1. A receiving plate 20 is slidably inserted into the barrel 16, its tapered cross-section design causing fragments to converge towards the center. The two cylinders 19 are symmetrically mounted at the bottom of the support frame 1, their output ends fixed to the receiving plate 20 with bolts, driving it to rise and fall vertically along the inner wall of the barrel 16. A heating element 21, preferably ROPEX, is bolted to the bottom outer wall of the receiving plate 20. UPT series heating resistors, heating element 21 is bolted to the bottom of the material holding plate 20, local heating prevents fragments from getting damp and clumping, and ensures that the suction pipe 5 adsorbs completely. The output end of cylinder 19 is fixedly connected to the material holding plate 20 by bolts.

[0028] This utility model provides a fragment feeding mechanism for powder coating production. The cylinder 19 drives the holding plate 20 to rise and fall inside the material cylinder 16. The holding plate 20 pushes the fragments upward. At the same time, since the cross-section of the holding plate 20 is conical, the fragments inside the material cylinder 14 will move towards the center of the holding plate 20, which facilitates the negative pressure adsorption of fragments by the suction pipe 5. Moreover, when the material is suctioned under negative pressure, the residual fragments at the bottom and edge of the material cylinder 16 can be completely removed.

[0029] In one embodiment provided by this utility model, such as Figure 2-3 As shown, the suction assembly 2 includes a tank 4, which serves as a temporary storage container for the adsorbed fragments. It is linked to the material cylinder 16 via a suction pipe 5, enabling the transfer of fragments from the material cylinder 16 to the tank 4. A suction pipe 5 is inserted into the outer wall of one side of the tank 4. One end of the suction pipe 5 is inserted into the mounting port 22 of the material cylinder 16, and the other end is connected to the tank 4, forming a negative pressure adsorption channel. One end of the suction pipe 5 is inserted inside the mounting port 22. A tank cover 9 is bolted to the top of the tank 4, and a vacuum pump 10 is bolted to the center of the top of the tank cover 9. The vacuum pump 10 is preferably a Busch R5. 0250, Vacuum pump 10, is bolted to the top of tank cover 9, providing negative pressure adsorption power for tank body 4. Filter screen 11 is bolted to the outer wall of one side of the bottom of tank cover 9, intercepting powder impurities that may enter vacuum pump 10 during adsorption, protecting the pump body from contamination. A placement groove 12 is provided at the bottom of tank body 4, and an elastic tube 13 is bolted to the top of the inner wall of placement groove 12. The elastic tube 13 is made of rubber or silicone, connecting tank body 4 and holding cylinder 14, buffering the airflow impact during material suction and reducing vibration interference of weighing sensor 15. The holding cylinder 14 is bolted to the bottom of elastic tube 13, serving as the final temporary storage container for adsorbed fragments. It is connected to tank body 4 through elastic tube 13, ensuring that fragments fall smoothly to weighing sensor 15.

[0030] In another embodiment provided by this utility model, such as Figure 2-3 As shown, the suction assembly 2 also includes two mounting brackets 6. The mounting brackets 6 are fixed to the bottom of the bracket 1 by bolts to provide stable support for the mounting cylinder 7. The mounting brackets 6 are installed on the outer wall of one side of the bottom of the bracket 1 by bolts. The mounting cylinder 7 is installed between the two mounting brackets 6 by bolts. The mounting cylinder 7 serves as the mounting base for the weighing sensor 15, ensuring accurate alignment between the weighing assembly and the suction assembly 2. The weighing sensor 15 is installed on the bottom of the inner wall of the mounting cylinder 7 by bolts. The weighing sensor 15 is preferably a ZEMIC L6E series model. The weighing sensor 15 is fixed to the bottom of the mounting cylinder 7 by bolts to monitor the weight of the fragments in the material container 14 in real time and form a closed-loop feedback signal. The bottom end of the material container 14 is in contact with the weighing sensor 15. The bottom end of the material container 14 is threadedly connected to the conveying valve pipe 8. The conveying valve pipe 8 is fixed to the bottom of the material container 14 by threaded connection and automatically opens and closes according to the data of the weighing sensor 15 to adjust the feeding amount.

[0031] Example 1

[0032] A powder coating production scrap feeding mechanism includes a support frame 1, which provides a support base for a suction assembly 2 and a material cylinder assembly 3. Suction and storage areas are respectively located on both sides of the top, optimizing space utilization. The suction assembly 2 is located on one outer wall of the top of the support frame 1, and the material cylinder assembly 3 is located on the other outer wall of the top of the support frame 1. The material cylinder assembly 3 includes a material cylinder 16 and two cylinders 19, preferably SMC cylinders. The CDQ2B series double-acting cylinder has a barrel 16 that serves as a temporary storage container for fragments. A barrel cover 17 is bolted on and has a mounting port 22 at the top for inserting a suction pipe 5. The barrel cover 17 is bolted to the top of the barrel 16 and opens and closes quickly via a hinge, facilitating manual feeding or cleaning of the barrel 16. A mounting port 22 is located on one side of the top of the barrel cover 17, and a cover plate 18 is mounted on the other side of the top of the barrel cover 17 via a hinge. Two cylinders 19 are bolted to the bottom sides of the support frame 1. A receiving plate 20 is slidably inserted into the barrel 16, its tapered cross-section design causing fragments to converge towards the center. The two cylinders 19 are symmetrically mounted at the bottom of the support frame 1, their output ends fixed to the receiving plate 20 with bolts, driving it to rise and fall vertically along the inner wall of the barrel 16. A heating element 21, preferably ROPEX, is bolted to the bottom outer wall of the receiving plate 20. UPT series heating resistors, heating element 21 is bolted to the bottom of the material holding plate 20, local heating prevents fragments from getting damp and clumping, and ensures that the suction pipe 5 adsorbs completely. The output end of cylinder 19 is fixedly connected to the material holding plate 20 by bolts.

[0033] Example 2

[0034] This embodiment further defines the features of Embodiment 1. The suction assembly 2 includes a tank 4, which serves as a temporary storage container for the adsorbed fragments. The tank 4 is linked to the material cylinder 16 via a suction pipe 5, enabling the transfer of fragments from the material cylinder 16 to the tank 4. A suction pipe 5 is inserted into the outer wall of one side of the tank 4. One end of the suction pipe 5 is inserted into the mounting port 22 of the material cylinder 16, and the other end is connected to the tank 4, forming a negative pressure adsorption channel. One end of the suction pipe 5 is inserted into the mounting port 22. A tank cover 9 is bolted to the top of the tank 4, and a vacuum pump 10 is bolted to the center of the top of the tank cover 9. The vacuum pump 10 is preferably a Busch R5. 0250, Vacuum pump 10, is bolted to the top of tank cover 9, providing negative pressure adsorption power for tank body 4. A filter screen 11 is bolted to the outer wall of one side of the bottom of tank cover 9, intercepting powder impurities that may enter vacuum pump 10 during adsorption, protecting the pump body from contamination. A placement groove 12 is provided at the bottom of tank body 4, and an elastic tube 13 is bolted to the top of the inner wall of placement groove 12. The elastic tube 13, made of rubber or silicone, connects tank body 4 to the material container 14, buffering the airflow impact during material suction and reducing vibration interference from weighing sensor 15. The material container 14 is bolted to the bottom of elastic tube 13. 4. The material container 14 serves as the final temporary storage container for the adsorbed fragments. It is connected to the tank 4 via the elastic tube 13 to ensure that the fragments fall smoothly to the weighing sensor 15. The suction assembly 2 also includes two mounting brackets 6. The mounting brackets 6 are fixed to the bottom of the bracket 1 with bolts to provide stable support for the mounting cylinder 7. The mounting brackets 6 are bolted to the outer wall of one side of the bottom of the bracket 1. The mounting cylinder 7 is bolted between the two mounting brackets 6. The mounting cylinder 7 serves as the mounting base for the weighing sensor 15, ensuring accurate alignment between the weighing assembly and the suction assembly 2. The weighing sensor 15 is bolted to the bottom of the inner wall of the mounting cylinder 7. The weighing sensor 15 is preferably a ZEMIC model. In the L6E series, the load cell 15 is fixed to the bottom of the mounting cylinder 7 with bolts to monitor the weight of the fragments in the material container 14 in real time, forming a closed-loop feedback signal. The bottom of the material container 14 is in contact with the load cell 15. The bottom of the material container 14 is threadedly connected to the conveying valve pipe 8, which is fixed to the bottom of the material container 14 by the threaded connection. The conveying valve pipe 8 automatically opens and closes according to the data of the load cell 15 to adjust the feeding amount.

[0035] Working principle: Open the cover plate 18 on the cylinder cover 17 and put the powder coating fragments into the material cylinder 16. The material receiving plate 20 is initially located at the bottom of the material cylinder. Activate the two cylinders 19, whose output ends push the material receiving plate 20 to slide upwards along the inner wall of the material cylinder 16. The conical cross-section design of the material receiving plate 20 causes the fragments to gradually gather towards the center area, avoiding residue at the edges. Subsequently, the vacuum pump 10 is activated, creating a negative pressure inside the tank 4. The suction pipe 5 draws the fragments from the material cylinder 16 through the installation port 22. At the same time, the material receiving plate 20 continues to rise, pushing the bottom fragments towards the inlet of the suction pipe 5, ensuring that the fragments at the bottom and edges of the material cylinder are completely adsorbed. In addition, the heating element 21 is activated during the suction process to locally heat the fragments above the material receiving plate 20, breaking up any residue caused by moisture or overheating. The agglomeration caused by temperature changes ensures the smooth adsorption of the suction pipe 5; the adsorbed fragments enter the tank 4 through the suction pipe 5, and the filter screen 11 intercepts powder impurities to prevent them from entering the vacuum pump 10. The fragments fall into the holding cylinder 14 through the elastic tube 13. The elastic tube 13 can alleviate the airflow impact during negative pressure adsorption and prevent fragments from splashing. The bottom of the holding cylinder 14 is in contact with the weighing sensor 15. The weighing sensor 15 collects fragment weight data in real time to form a closed-loop control. When the weight reaches the preset value, the conveying valve pipe 8 opens automatically, and the fragments are conveyed to the next process through the threaded conveying valve pipe 8; when the weight is insufficient, the system feedback signal restarts the suction process; after the suction is completed, the cylinder 19 drives the holding plate 20 to return to the bottom of the cylinder 16, waiting for the next loading.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fragment feeding mechanism for powder coating production, comprising a support frame (1), characterized in that, The support (1) has a suction assembly (2) on one side of the top outer wall and a material cylinder assembly (3) on the other side of the top outer wall. The material cylinder assembly (3) includes a material cylinder (16) and two cylinders (19). The top of the material cylinder (16) is fitted with a cylinder cover (17) by bolts, and an installation port (22) is opened on one side of the top outer wall of the cylinder cover (17). A cover plate (18) is fitted on one side of the top outer wall of the cylinder cover (17) by a movable hinge. The tops of the two cylinders (19) are fitted on the bottom outer walls of the support (1) by bolts. A material holding plate (20) is slidably inserted inside the material cylinder (16), and a heating element (21) is fitted on the bottom outer wall of the material holding plate (20) by bolts. The output end of the cylinder (19) is fixedly connected to the material holding plate (20) by bolts.

2. The powder coating production fragment feeding mechanism according to claim 1, characterized in that, The suction assembly (2) includes a tank (4), and a suction pipe (5) is inserted into the outer wall of one side of the tank (4), with one end of the suction pipe (5) inserted into the installation port (22).

3. The powder coating production fragment feeding mechanism according to claim 2, characterized in that, The top of the tank (4) is fitted with a tank cover (9) by bolts, and a vacuum pump (10) is fitted with a bolt at the center of the top of the tank cover (9). A filter screen (11) is fitted with a bolt on the outer wall of one side of the bottom of the tank cover (9).

4. The powder coating production fragment feeding mechanism according to claim 2, characterized in that, The tank (4) has a placement groove (12) at the bottom, and an elastic tube (13) is installed on the top of the inner wall of the placement groove (12) by bolts. A material container (14) is installed on the bottom of the elastic tube (13) by bolts.

5. A fragment feeding mechanism for powder coating production according to claim 4, characterized in that, The suction assembly (2) also includes two mounting brackets (6), which are bolted to the outer wall of the bottom side of the bracket (1), and a mounting cylinder (7) is bolted between the two mounting brackets (6).

6. A fragment feeding mechanism for powder coating production according to claim 5, characterized in that, A weighing sensor (15) is installed on the bottom of the inner wall of the mounting cylinder (7) by bolts. The bottom end of the material container (14) is in contact with the weighing sensor (15). The bottom end of the material container (14) is threadedly connected to the material conveying valve pipe (8).

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