Powder supply mechanism for electrostatic plastic spraying

Abstract

The utility model discloses a powder supply mechanism for electrostatic plastic spraying. The right side of the top of the rack is fixedly connected with a driving motor, the output end of the driving motor is provided with a spiral extruder, the top of the spiral extruder communicates with a feeding hopper, the front end and the back end of the top of the feeding hopper are fixedly connected with vibration screening mechanisms, and each vibration screening mechanism comprises a connecting box, a vertical plate and a screening plate. Through the arrangement of the vibration screening mechanism, raw materials can be poured in through the feeding hopper, then the vertical plate moves under the influence of external force, the vertical plate reciprocates to drive the screening plate to move along with the vertical plate, the screening plate moves to vibrate and screen the raw materials, solid waste is screened out, and other raw materials fall into the screw extruder through the screening plate. And then the driving motor is started to work, and the driving motor works to drive the screw extruder to extrude the raw materials, so that the raw materials are screened and filtered, and pollution caused by mixing of impurities into the raw materials to subsequent process processing is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic powder coating technology, specifically to an electrostatic powder coating powder supply mechanism. Background Technology

[0002] Electrostatic powder coating is a powder coating process that utilizes the principle of electrostatics. Electrostatic powder coating equipment consists of a spray gun, powder spraying chamber, powder supply system, electrostatic generator, and recovery system, and is widely used in many fields such as metal products, furniture, and automotive parts.

[0003] In the comparative case, patent publication number CN218690587U, this utility model relates to the technical field of powder supply mechanisms and discloses an electrostatic powder coating supply mechanism, including a powder supply center base; a movable component is provided on the upper surface of the powder supply center base, the movable component includes a rod one disposed on the upper surface of the powder supply center base, a tube body with one end disposed on the upper surface of the rod one, a rod two with one end bearing connected to the other end of the tube body, a frame one disposed on the outer wall of the rod two, a powder loading component is provided on the upper surface of the frame one, the powder loading component includes a frame four disposed on the upper surface of the frame one, the frame four is not connected to the frame one, and a frame three disposed on the inner wall of the frame three; the electrostatic powder coating supply mechanism, by setting a powder adding device, prevents powder from overflowing when workers add powder, reducing the harm of dust to the human body. This electrostatic powder coating supply mechanism, by setting a handle structure that facilitates the use of the device, makes operation more convenient for workers.

[0004] However, in implementing the relevant technology, the above-mentioned electrostatic powder coating feeding mechanism has the following problems. Compared with the case, the powder feeding device prevents powder from overflowing when workers add powder, reducing the harm of dust to the human body. In the existing electrostatic powder coating equipment, impurities are easily mixed in during powder feeding, which causes adhesion and contamination to the products processed in subsequent processes, reducing the safety of using electrostatic powder coating equipment.

[0005] Therefore, it is necessary to design and modify the electrostatic powder coating equipment to effectively prevent impurities from easily mixing into the powder during powder feeding, which could cause adhesion and contamination of products processed in subsequent processes. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an electrostatic powder coating feeding mechanism that has the advantages of vibrating screen filtration, thus solving the problem that impurities are easily mixed in during the powder coating process of electrostatic powder coating equipment, causing adhesion and contamination to the products processed in subsequent processes.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrostatic powder coating supply mechanism, comprising;

[0008] The frame has a drive motor fixedly connected to the top right side of the frame. The output end of the drive motor is equipped with a screw extruder. The top of the screw extruder is connected to a feed hopper. The front end and back end of the top of the feed hopper are both fixedly connected to a vibrating screen mechanism.

[0009] The vibrating screen mechanism includes a connecting box, a vertical plate, and a screen plate. The front and back ends of the top of the feed hopper are fixedly connected to the connecting box. The left and right sides of the bottom of the connecting box are slidably connected to the vertical plate. The bottom of the vertical plate extends through the inside of the feed hopper and is fixedly connected to the screen plate. The left and right sides of the inner wall of the connecting box are fixedly connected to the connecting mechanism.

[0010] In a preferred embodiment of this utility model, the connecting mechanism includes a connecting rod, an L-shaped docking plate, and a contact plate. The connecting rod is fixedly connected to both the left and right sides of the inner wall of the connecting box. The top of the vertical plate extends into the interior of the connecting box, and the inner side of the connecting rod extends through one side of the vertical plate. The front end of the vertical plate is fixedly connected to the L-shaped docking plate, and the end of the L-shaped docking plate away from the vertical plate is fixedly connected to the contact plate. A driving assembly is fixedly connected to the back end of the inner wall of the connecting box.

[0011] In a preferred embodiment of this invention, the drive assembly includes a servo motor and a cam, wherein the output end of the servo motor is fixedly connected to the cam, and the cam is located inside the contact plate.

[0012] As a preferred embodiment of this utility model, the left and right sides of the connecting box are both movably connected to cover plates via hinges, and the cover plates are used in conjunction with the connecting box.

[0013] As a preferred embodiment of this utility model, a return spring is sleeved on the surface of the connecting rod, and the left and right sides of the return spring are fixedly connected to the right side of the vertical plate and the right side of the inner wall of the connecting box, respectively.

[0014] As a preferred embodiment of this invention, a rubber pad is fixedly connected to the inner side of the contact plate, and the rubber pad is rectangular in shape.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the setting of the vibrating screen mechanism, allows raw materials to be poured in through the feed hopper. Then, the vertical plate moves under the influence of external force. The reciprocating motion of the vertical plate drives the screen plate to move accordingly. The screen plate vibrates and screens the raw materials, screening out solid waste. The remaining raw materials fall into the interior of the screw extruder through the screen plate. Then, the drive motor is started to work, and the drive motor drives the screw extruder to extrude the raw materials, thereby achieving the screening and filtration of raw materials and avoiding the contamination of subsequent processing by impurities mixed in with the raw materials. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 3D structural diagram of the central frame, drive motor, and screw extruder;

[0019] Figure 3 This utility model Figure 2 Three-dimensional view of the connecting box structure;

[0020] Figure 4 This utility model Figure 3 3D view of the L-shaped butt plate and contact plate structure;

[0021] Figure 5 This utility model Figure 3 Three-dimensional view of the central return spring structure.

[0022] In the diagram: 1. Frame; 2. Drive motor; 3. Screw extruder; 4. Feed hopper; 5. Vibrating screen mechanism; 51. Connecting box; 52. Vertical plate; 53. Screen plate; 6. Connecting mechanism; 61. Connecting rod; 62. L-shaped docking plate; 63. Contact plate; 7. Drive assembly; 71. Servo motor; 72. Cam; 8. Cover plate; 9. Return spring; 10. Rubber pad. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 5 As shown, the electrostatic powder coating feeding mechanism provided by this utility model includes:

[0025] A frame 1 is fixedly connected to a drive motor 2 on the right side of the top of the frame 1. A screw extruder 3 is installed at the output end of the drive motor 2. A feed hopper 4 is connected to the top of the screw extruder 3. A vibrating screen mechanism 5 is fixedly connected to the front and back ends of the top of the feed hopper 4.

[0026] The vibrating screen mechanism 5 includes a connecting box 51, a vertical plate 52, and a screen plate 53. The connecting box 51 is fixedly connected to the front end and back end of the top of the feed hopper 4. The vertical plate 52 is slidably connected to the left and right sides of the bottom of the connecting box 51. The bottom of the vertical plate 52 extends through the inside of the feed hopper 4 and is fixedly connected to the screen plate 53. The connecting mechanism 6 is fixedly connected to the left and right sides of the inner wall of the connecting box 51.

[0027] refer to Figure 4The connecting mechanism 6 includes a connecting rod 61, an L-shaped docking plate 62, and a contact plate 63. The connecting rod 61 is fixedly connected to the left and right sides of the inner wall of the connecting box 51. The top of the vertical plate 52 extends into the interior of the connecting box 51. The inner side of the connecting rod 61 extends through one side of the vertical plate 52. The front end of the vertical plate 52 is fixedly connected to the L-shaped docking plate 62. The end of the L-shaped docking plate 62 away from the vertical plate 52 is fixedly connected to the contact plate 63. The back end of the inner wall of the connecting box 51 is fixedly connected to the driving assembly 7.

[0028] As a technical optimization of this utility model, by setting the connecting mechanism 6, the contact plate 63 can be displaced by collision. The displacement of the contact plate 63 drives the L-shaped docking plate 62 to move. The movement of the L-shaped docking plate 62 transmits power to the vertical plate 52. The vertical plate 52 maintains horizontal movement with the surface of the connecting rod 61, thereby achieving the consistency of the mechanical power transmission direction and avoiding the phenomenon of tilting of the vertical plate 52 during the movement.

[0029] refer to Figure 4 The drive assembly 7 includes a servo motor 71 and a cam 72. The output end of the servo motor 71 is fixedly connected to the cam 72, which is located inside the contact plate 63.

[0030] As a technical optimization of this utility model, by setting the drive component 7, the servo motor 71 can drive the cam 72 to rotate clockwise. The cam 72 rotates continuously and contacts the contact plate 63, thereby causing collisions and forcing it to move, so as to realize the transmission of mechanical power and avoid the contact plate 63 being unable to move due to collisions, which would cause the machine to malfunction.

[0031] refer to Figure 2 The left and right sides of the connecting box 51 are connected to cover plates 8 by hinges, and the cover plates 8 are used in conjunction with the connecting box 51.

[0032] As a technical optimization of this utility model, the cover plate 8 can assist the feed hopper 4 in its operation and also serve as a sealing solution, preventing raw materials from floating out of the feed hopper 4 and causing resource waste during the operation of the screen plate 53.

[0033] refer to Figure 5 A return spring 9 is sleeved on the surface of the connecting rod 61. The left and right sides of the return spring 9 are fixedly connected to the right side of the vertical plate 52 and the right side of the inner wall of the connecting box 51, respectively.

[0034] As a technical optimization of this utility model, the reset spring 9 can assist the vertical plate 52 in its work and also serve as a reset buffer, preventing the vertical plate 52 from failing to reset after movement, thus preventing the machine from continuing to work.

[0035] refer to Figure 4A rubber pad 10 is fixedly connected to the inner side of the contact plate 63. The rubber pad 10 is rectangular in shape.

[0036] As a technical optimization of this utility model, the rubber pad 10 can assist the contact plate 63 in working and also play a protective role, avoiding the phenomenon of collision and damage caused by direct contact between the contact plate 63 and the cam 72.

[0037] The working principle and usage process of this utility model are as follows: When in use, the raw material is poured into the feed hopper 4, and then the servo motor 71 is started. The servo motor 71 drives the cam 72 to rotate. The rotating cam 72 contacts the rubber pad 10 and forces the contact plate 63 to move. The movement of the contact plate 63 causes the L-shaped docking plate 62 to move accordingly. The movement of the L-shaped docking plate 62 causes the vertical plate 52 and the screen plate 53 to move synchronously. While the vertical plate 52 moves stably along the surface of the connecting rod 61, it also compresses the return spring 9. The return spring 9 stores elastic potential energy. When the cam 72 rotates to the other side, it resets. The reset spring 9 pushes the vertical plate 52 back to the initial position to prepare to contact the cam 72 again for movement, so that the cam 72 continues to rotate and contact the contact plate 63 to perform work. Finally, the vertical plate 52 and the screen plate 53 achieve reciprocating motion. The reciprocating motion of the screen plate 53 performs vibratory screening of the raw materials, filtering out solid waste. The remaining raw materials fall through the screen plate 53 into the interior of the screw extruder 3. Then, the drive motor 2 is started to work. The drive motor 2 drives the screw extruder 3 to extrude the raw materials for subsequent processing.

[0038] In summary, this electrostatic powder coating feeding mechanism, through the coordinated use of frame 1, drive motor 2, screw extruder 3, feed hopper 4, vibrating screen mechanism 5, connecting box 51, vertical plate 52, screen plate 53, and connecting mechanism 6, allows the raw material to be poured in through the feed hopper 4. The vertical plate 52 then moves under external force, causing the screen plate 53 to follow suit. The screen plate 53 vibrates and screens the raw material, removing solid waste. The remaining raw material falls through the screen plate 53 into the screw extruder 3. Then, the drive motor 2 is activated, driving the screw extruder 3 to extrude the raw material. This achieves material screening and filtration, preventing impurities from contaminating subsequent processing steps and solving the problem of existing electrostatic powder coating equipment where impurities easily enter during powder feeding, causing adhesion contamination to the finished product.

[0039] 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 process, method, article, or apparatus.

[0040] 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. An electrostatic powder coating feeding mechanism, comprising: A frame (1) is fixedly connected to a drive motor (2) on the right side of the top of the frame (1). A screw extruder (3) is provided at the output end of the drive motor (2). A feed hopper (4) is connected to the top of the screw extruder (3). A vibrating screen mechanism (5) is fixedly connected to the front and back ends of the top of the feed hopper (4). The vibrating screen mechanism (5) is characterized in that it includes a connecting box (51), a vertical plate (52) and a screen plate (53). The front end and back end of the top of the feed hopper (4) are fixedly connected to the connecting box (51). The left and right sides of the bottom of the connecting box (51) are slidably connected to the vertical plate (52). The bottom of the vertical plate (52) extends through the inside of the feed hopper (4) and is fixedly connected to the screen plate (53). The left and right sides of the inner wall of the connecting box (51) are fixedly connected to the connecting mechanism (6).

2. A powder supply mechanism for electrostatic plastic spraying according to claim 1, characterized in that: The connecting mechanism (6) includes a connecting rod (61), an L-shaped docking plate (62), and a contact plate (63). The connecting rod (61) is fixedly connected to the left and right sides of the inner wall of the connecting box (51). The top of the vertical plate (52) extends into the interior of the connecting box (51). The inner side of the connecting rod (61) extends through one side of the vertical plate (52). The front end of the vertical plate (52) is fixedly connected to the L-shaped docking plate (62). The end of the L-shaped docking plate (62) away from the vertical plate (52) is fixedly connected to the contact plate (63). The back end of the inner wall of the connecting box (51) is fixedly connected to the driving assembly (7).

3. A powder supply mechanism for electrostatic plastic spraying according to claim 2, characterized in that: The drive assembly (7) includes a servo motor (71) and a cam (72). The output end of the servo motor (71) is fixedly connected to the cam (72), which is located inside the contact plate (63).

4. A powder supply mechanism for electrostatic plastic spraying according to claim 1, characterized in that: The left and right sides of the connecting box (51) are connected to cover plates (8) by hinges, and the cover plates (8) are used in conjunction with the connecting box (51).

5. A powder supply mechanism for electrostatic plastic spraying according to claim 2, characterized in that: A reset spring (9) is sleeved on the surface of the connecting rod (61). The left and right sides of the reset spring (9) are fixedly connected to the right side of the vertical plate (52) and the right side of the inner wall of the connecting box (51), respectively.

6. The electrostatic powder coating feeding mechanism according to claim 2, characterized in that: A rubber pad (10) is fixedly connected to the inner side of the contact plate (63), and the rubber pad (10) is rectangular in shape.

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