Coating screening machine
By using a cross-drive mechanism and a flexible screening fiber structure in the paint screening machine, the problem of difficult screening and waste of paint blocks during screening in traditional screens is solved, and efficient screening and environmental protection are achieved.
Patent Information
- Application Number
- CN202420927385.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-30
AI Technical Summary
When traditional screens sieving solid powder coatings, it is easy to produce paint blocks that are difficult to siev for a long time, resulting in waste and slow screening speed, which affects actual use.
A coating screening machine is designed, using a cross-drive mechanism to drive the first and second screen frames to sway the skew, and using flexible screen fibers and corrugated sleeve structures to increase the swing amplitude of the screen fibers in the screen holes, breaking the agglomeration. solid coating and reduce waste by quantitative down hopper and sealed frame structure.
It improves the screening efficiency of solid powder coatings, reduces the loss of coatings, and limits the floating of powder during the screening process, protecting the working environment.
Smart Images
Figure CN222287864U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of coating screening, and in particular relates to a coating screening machine. Background Art
[0002] Solid powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler and additives. Unlike ordinary solvent-based coatings and water-based coatings, its dispersion medium is air instead of solvent and water. It has the characteristics of no solvent pollution and low energy consumption. After long-term storage, solid powder coating will produce slight agglomeration and cannot be electrostatically sprayed. It needs to be re-screened to obtain solid coating powder with uniform particle size before it can be used.
[0003] The traditional screen for screening slightly agglomerated solid powder coatings will produce coating blocks on the screen that are difficult to screen for a long time, resulting in waste of coatings, and the screening speed is slow, affecting the actual use of the solid powder coatings.
[0004] Therefore need a kind of novel coating screening machine. Utility Model Content
[0005] In order to solve the above problems, the utility model discloses a coating screening machine.
[0006] In order to achieve the above object, the technical solution of the utility model is as follows:
[0007] A paint screening machine comprises a frame, a quantitative discharge hopper is installed on the top of the frame, a first screening frame is arranged below the quantitative discharge hopper, the bottom of the first screening frame is flexibly connected to a second screening frame, the second screening frame is provided with evenly distributed and vertically upward screening fibers, and each screening fiber is slidably inserted into a screen hole of the first screening frame, the first screening frame and the second screening frame are both provided with a horizontal corrugated sleeve, each of the horizontal corrugated sleeves is provided with a fixed square frame, and each fixed square frame is fixedly connected to the frame, the bottom of the second screening frame is flexibly connected to a discharge hopper, a cross-driving mechanism is provided on one side of the frame, and the cross-driving mechanism simultaneously drives the first screening frame and the second screening frame to shake.
[0008] As a preferred technical solution of the utility model, the bottom of the first screening frame is connected to a vertical corrugated sleeve, and the vertical corrugated sleeve is connected to the top of the second screening frame, and the bottom of the second screening frame is connected to a vertical corrugated sleeve, and the vertical corrugated sleeve is connected to the top of the discharge hopper.
[0009] As a preferred technical solution of the utility model, the cross-sectional area of a single screening fiber is equal to half the cross-sectional area of the screen hole of the first screening frame.
[0010] As a preferred technical solution of the utility model, the cross-drive mechanism includes: a second mounting rod fixedly connected to the frame, the second mounting rod fixedly installed with a driving motor, the output end of the driving motor is coaxially fixedly connected with a transmission shaft, the transmission shaft is coaxially fixedly sleeved with two first gears, the two first gears are respectively engaged with a second gear, each of the second gears is coaxially fixedly connected with a driving wheel, the eccentric column of each driving wheel is rotatably connected to a connecting rod, each of the connecting rods is rotatably connected to a fixed seat, and the two fixed seats are respectively fixedly connected to the first screening frame and the second screening frame.
[0011] As a preferred technical solution of the utility model, the eccentric columns of the two driving wheels are staggered.
[0012] As a preferred technical solution of the utility model, the second gear and the driving wheel are coaxially fixedly connected together through a coaxial rotating shaft, and the bottom of each rotating shaft is rotatably connected to a first mounting rod, and both ends of each first mounting rod are fixedly connected to the frame.
[0013] As a preferred technical solution of the present utility model, each of the first mounting rods is provided with a through hole penetrating the transmission shaft.
[0014] As a preferred technical solution of the utility model, the side walls and the bottom of the frame are wrapped with inlay panels and side panels, and the frame and the quantitative lower hopper together form a sealed box body.
[0015] The beneficial effects of the utility model are:
[0016] 1. Driven by the cross-drive mechanism, the eccentric columns of the two driving wheels are misaligned, causing the first screening frame and the second screening frame to shake. The misaligned shaking of the first screening frame and the second screening frame can increase the swing amplitude of the screening fiber in the sieve hole of the first screening frame. Then, the quantitative lower hopper slowly and quantitatively adds solid powder coating to the first screening frame. The swinging screening fiber in the first screening frame will break the slightly agglomerated solid coating into powder. The solid coating powder falls into the second screening frame from the gap between the screening fiber and the sieve hole of the first screening frame, and then falls into the discharge hopper through the sieve hole of the second screening frame. The design of adding the swinging screening fiber in the sieve hole of the first screening frame can break the agglomerated coating as much as possible, thereby improving the screening efficiency of the solid powder coating and reducing the screening loss of the solid powder coating.
[0017] 2. The frame and the quantitative lower hopper together form a sealed box, so that the paint powder floating in the air during the screening process is confined inside the paint screening machine, protecting the screening working environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model without the inlay plate and the side plate;
[0020] Figure 3 It is a cross-sectional view of the first screening frame, the second screening frame, the screening fibers, the horizontal corrugated sleeve, the fixed square frame, the vertical corrugated sleeve, the cross-driving mechanism and the discharge hopper of the embodiment of the utility model;
[0021] Figure 4 For the utility model embodiment Figure 3 The enlarged view of point A in the middle;
[0022] Figure 5 It is a structural schematic diagram of the cross-drive mechanism of an embodiment of the utility model.
[0023] List of Figure Symbols:
[0024] 1. Frame; 2. Quantitative hopper; 3. First screening frame; 4. Second screening frame; 401. Screening fiber; 5. Horizontal corrugated sleeve; 6. Fixed square frame; 7. Vertical corrugated sleeve;
[0025] 8. Cross-driving mechanism; 801. driving motor; 802. transmission shaft; 803. first gear; 804. second gear; 805. driving wheel; 806. connecting rod; 807. fixing seat; 808. first mounting rod; 809. second mounting rod;
[0026] 9. Discharge hopper; 10. Crossbeam; 11. Inlaid panel; 12. Side panel. DETAILED DESCRIPTION
[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention.
[0028] See also Figure 1-5A coating screening machine comprises a frame 1, and a quantitative lower hopper 2 is installed on the top of the frame 1. The quantitative lower hopper 2 stores slightly agglomerated solid powder coating, which is used to slowly and quantitatively add solid powder coating to the first screening frame 3. A first screening frame 3 is arranged below the quantitative lower hopper 2, and the bottom of the first screening frame 3 is flexibly connected to the second screening frame 4, and the second screening frame 4 is provided with uniformly distributed and vertically upward screening fibers 401, and each screening fiber 401 is slidably inserted into a sieve hole of the first screening frame 3, and the first screening frame 3 and the second screening frame 4 are both provided with a horizontal corrugated sleeve 5, and each horizontal corrugated sleeve 5 is provided with a fixed square frame 6, and each fixed square frame 6 is fixedly connected to the frame 1. The frame 1 is fixedly installed with a crossbeam 10 corresponding to the two fixed square frames 6, and the frames of the two fixed square frames 6 are fixedly clamped on the crossbeam 10. The rubber layer of a horizontal corrugated sleeve 5 is relatively thick, which can provide vertical support for the first screening frame 3 and the second screening frame 4, and the first screening frame 3 and the second screening frame 4 can be shaken in the horizontal direction. The bottom of the second screening frame 4 is flexibly connected to a discharge hopper 9, and a cross-driving mechanism 8 is provided on one side of the frame 1, and the cross-driving mechanism 8 drives the first screening frame 3 and the second screening frame 4 to shake at the same time. When the cross-driving mechanism 8 drives the first screening frame 3 and the second screening frame 4 to shake in the horizontal direction at the same time, the screening fiber 401 will break the slightly agglomerated solid coating into powder, and the solid coating powder falls into the second screening frame 4 from the gap between the screening fiber 401 and the sieve hole of the first screening frame 3, and then falls into the discharge hopper 9 through the sieve hole of the second screening frame 4. The agglomeration of solid powder coating has a relatively loose structure and can be easily broken by the swinging screening fiber 401.
[0029] The bottom of the first screening frame 3 is connected to a vertical corrugated sleeve 7, and the vertical corrugated sleeve 7 is connected to the top of the second screening frame 4. The bottom of the second screening frame 4 is connected to a vertical corrugated sleeve 7, and the vertical corrugated sleeve 7 is connected to the top of the discharge hopper 9. The rubber layer of the vertical corrugated sleeve 7 is relatively thin, which does not affect the first screening frame 3 and the second screening frame 4 from shaking in the horizontal direction.
[0030] The cross-sectional area of a single screening fiber 401 is equal to half of the cross-sectional area of the mesh of the first screening frame 3. The screening fiber 401 has a certain toughness. The size of the gap between the screening fiber 401 and the mesh of the first screening frame 3 is determined by the particle size of the solid coating powder.
[0031] The cross drive mechanism 8 comprises: a second mounting rod 809 fixedly connected to the frame 1, a driving motor 801 fixedly installed on the second mounting rod 809, a transmission shaft 802 coaxially fixedly connected to the output end of the driving motor 801, two first gears 803 coaxially fixedly sleeved on the transmission shaft 802, the two first gears 803 respectively mesh with a second gear 804, each second gear 804 is coaxially fixedly connected to a driving wheel 805, the eccentric column of each driving wheel 805 is rotatably connected to a connecting rod 806, each connecting rod 806 is rotatably connected to a fixing seat 807, and the two fixing seats 807 are respectively fixedly connected to the first screening frame 3 and the second screening frame 4. The eccentric columns of the two driving wheels 805 are staggered. The driving motor 801 drives the two first gears 803 to rotate simultaneously through the transmission shaft 802, and the two first gears 803 respectively drive the second gears 804 meshing therewith to rotate, and the two second gears 804 respectively drive the driving wheels 805 coaxially fixedly connected therewith to rotate, and the two driving wheels 805 respectively drive the first screening frame 3 and the second screening frame 4 to swing in the horizontal direction through a connecting rod 806 and a fixed seat 807. Due to the misalignment of the eccentric columns of the two driving wheels 805, the first screening frame 3 and the second screening frame 4 are misaligned and shaken. The misaligned shaking of the first screening frame 3 and the second screening frame 4 can increase the swing amplitude of the screening fiber 401 in the sieve hole of the first screening frame 3, thereby improving the efficiency of breaking up the solid powder coating blocks.
[0032] The second gear 804 and the driving wheel 805 are coaxially fixedly connected together through a coaxial rotating shaft, and the bottom of each rotating shaft is rotatably connected to a first mounting rod 808, and both ends of each first mounting rod 808 are fixedly connected to the frame 1. Each first mounting rod 808 is provided with a through hole penetrating the transmission shaft 802, and the transmission shaft 802 does not contact the first mounting rod 808.
[0033] The side walls and bottom of the frame 1 are wrapped with inlay panels 11 and side panels 12, and the frame 1 and the quantitative lower hopper 2 together form a sealed box. The three side walls and the bottom of the frame 1 are inlaid with inlay panels 11, and one side wall of the frame 1 is installed with a side panel 12, and an inspection port is opened on the side panel 12 for maintaining the cross drive mechanism 8. At the same time, other inspection ports can be set (not drawn in the drawings of the specification). The bottom of the discharge hopper 9 passes through the inlay panel 11 and is provided with a flange for connecting external pipes.
[0034] Working principle:
[0035] When in use, the driving motor 801 drives the two first gears 803 to rotate simultaneously through the transmission shaft 802, and the two first gears 803 respectively drive the second gears 804 meshing therewith to rotate, and the two second gears 804 respectively drive the driving wheels 805 coaxially fixedly connected therewith to rotate, and the two driving wheels 805 respectively drive the first screening frame 3 and the second screening frame 4 to shake in the horizontal direction through a connecting rod 806 and a fixing seat 807. Due to the misalignment of the eccentric columns of the two driving wheels 805, the first screening frame 3 and the second screening frame 4 are misaligned and shaken, and the first screening frame 3 and the second screening frame 4 can increase the swing amplitude of the screening fiber 401 in the sieve holes of the first screening frame 3, and then the quantitative lower hopper 2 slowly and quantitatively adds solid powder coating to the first screening frame 3, and the swinging screening fiber 401 in the first screening frame 3 will break the slightly agglomerated solid powder coating into powder, and the solid coating powder falls into the second screening frame 4 from the gap between the screening fiber 401 and the sieve holes of the first screening frame 3, and then falls into the discharge hopper 9 through the sieve holes of the second screening frame 4, and finally the solid coating powder with uniform particle size is discharged from the bend pipe at the bottom of the discharge hopper 9.
[0036] It should be noted that the above content only illustrates the technical idea of the utility model and cannot be used to limit the protection scope of the utility model. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications all fall within the protection scope of the claims of the utility model.
Claims
1. A coating material screening machine, comprising a frame (1), a quantitative lower hopper (2) being installed on the top of the frame (1), characterized in that: A first screening frame (3) is arranged below the quantitative lower hopper (2); the bottom of the first screening frame (3) is flexibly connected to a second screening frame (4); the second screening frame (4) is provided with screening fibers (401) evenly distributed and vertically upward, and each screening fiber (401) is slidably inserted into a sieve hole of the first screening frame (3); the first screening frame (3) and the second screening frame (4) are both provided with a horizontal corrugated sleeve (5) on the outer sleeve; each of the horizontal corrugated sleeves (5) is provided with a fixed square frame (6) on the outer sleeve, and each fixed square frame (6) is fixedly connected to the frame (1); the bottom of the second screening frame (4) is flexibly connected to a discharge hopper (9); a cross-driving mechanism (8) is provided on one side of the frame (1), and the cross-driving mechanism (8) simultaneously drives the first screening frame (3) and the second screening frame (4) to shake.
2. A coating screening machine according to claim 1, characterized in that: The bottom of the first screening frame (3) is connected to a vertical corrugated sleeve (7), and the vertical corrugated sleeve (7) is connected to the top of the second screening frame (4); the bottom of the second screening frame (4) is connected to a vertical corrugated sleeve (7), and the vertical corrugated sleeve (7) is connected to the top of the discharge hopper (9).
3. A coating screening machine according to claim 1, characterized in that: The cross-sectional area of a single screening fiber (401) is equal to half the cross-sectional area of the screen hole of the first screening frame (3).
4. A coating screening machine according to claim 1, characterized in that: The cross-drive mechanism (8) comprises: a second mounting rod (809) fixedly connected to the frame (1), the second mounting rod (809) being fixedly mounted with a driving motor (801), the output end of the driving motor (801) being coaxially fixedly connected with a transmission shaft (802), the transmission shaft (802) being coaxially fixedly sleeved with two first gears (803), the two first gears (803) respectively meshing with a second gear (804), each of the second gears (804) being coaxially fixedly connected with a driving wheel (805), the eccentric column of each driving wheel (805) being rotatably connected with a connecting rod (806), each of the connecting rods (806) being rotatably connected with a fixing seat (807), and the two fixing seats (807) being respectively fixedly connected with the first screening frame (3) and the second screening frame (4).
5. A coating screening machine according to claim 4, characterized in that: The eccentric columns of the two driving wheels (805) are arranged in a staggered manner.
6. A coating screening machine according to claim 4, characterized in that: The second gear (804) and the driving wheel (805) are coaxially fixedly connected together and fixedly connected via a coaxial rotating shaft, and the bottom of each rotating shaft is rotatably connected to a first mounting rod (808), and both ends of each first mounting rod (808) are fixedly connected to the frame (1).
7. A coating screening machine according to claim 6, characterized in that: Each of the first mounting rods (808) is provided with a through hole penetrating the transmission shaft (802).
8. A coating screening machine according to claim 1, characterized in that: The side walls and bottom of the frame (1) are wrapped with inlay panels (11) and side panels (12), and the frame (1) and the quantitative lower hopper (2) together form a sealed box.