Powder coating outflow property measuring device

Abstract

The utility model discloses a powder coating outflow property measuring device which comprises a support, a funnel, a plugging device and a measuring system, the funnel is arranged on the support, a discharging port is formed below the funnel, the plugging device comprises a plugging piece and a driving piece used for driving the plugging piece to move, and the discharging port can be opened or closed when the plugging piece moves. The measuring system comprises a laser transmitter, a photosensitive sensor, a controller and a timer, the photosensitive sensor and the timer are electrically connected with the controller, the laser transmitter and the photosensitive sensor are arranged on the two sides of the lower portion of the discharging port respectively, the photosensitive sensor is used for receiving laser, and the laser transmitted by the laser transmitter intersects with the central axis of the discharging port. According to the powder coating outflow property measuring device disclosed by the utility model, the timer is high in response speed, quick to start and stop, more accurate in measuring time and higher in measuring result accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating performance detection, in particular to a powder coating outflow determination device. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. Flowability is an important indicator of powder coating, which refers to the ability of powder coating to flow evenly or to be poured from a container. The better the flowability of the powder coating, the better the atomization effect after it is sprayed out of the nozzle. Therefore, it is necessary to conduct flowability testing on samples during the research and development of powder coating.

[0003] The traditional method for measuring the flowability of powder coatings is to place the powder sample on paper to make it loose and free of lumps, then weigh out 100g of the sample, put it into a vertically placed funnel, and seal its lower opening with hands or suitable strips. During the measurement, quickly open the lower opening of the funnel and start the stopwatch at the same time to let the powder flow out by itself. When the powder stops flowing out, stop the timing. The traditional measurement method has a certain error when the stopwatch is manually controlled to start and stop, and the accuracy of the measurement structure is not high. In view of this, a Chinese patent document with publication number CN219434611U discloses a powder coating fluidity detection device, which controls the start of timing by the cooperation between an infrared transmitter and an infrared receiver, and controls the end of timing by the weighing of the powder coating by an electronic scale. The response speed of the start and end of timing is faster, the test results are more accurate, and manpower is saved. However, in actual operation, the applicant found that this method still has a large error. The reason is that after the powder coating leaves the opening below the funnel and flows to the electronic scale, it also takes a certain amount of time to fall, and this time is also counted in the final test result. Obviously, the height of the funnel brings uncertainty to the time required for falling. The higher the funnel is, the longer the statistical time is, and the greater the error is. Therefore, it is necessary for the applicant to make further improvements to the above scheme to reduce the measurement error and improve the accuracy of the measurement results. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in the prior art, the time required for powder coating to fall onto the electronic scale is counted on a timer, the error is large, and the measurement result is not accurate. Based on this, the utility model provides a powder coating flowability measurement device which can reduce the error and provide accurate measurement results.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a powder coating flowability measuring device, comprising a bracket, a funnel, a sealing device and a measuring system, the funnel is arranged on the bracket, a discharge port is opened below the funnel, the sealing device comprises a sealing piece and a driving member for driving the sealing piece to move, the discharge port can be opened or closed when the sealing piece moves, the measuring system comprises a laser emitter, a photosensor, a controller and a timer, the photosensor and the timer are electrically connected to the controller, the laser emitter and the photosensor are respectively arranged on both sides below the discharge port, the photosensor is used to receive laser, and the laser emitted by the laser emitter intersects with the central axis of the discharge port.

[0006] Furthermore, the laser emitter and the photosensor are at the same level.

[0007] Furthermore, the bracket includes a conical ring and a fixing column, the fixing column is vertically connected below the conical ring, and the conical part of the funnel is cooperatively placed in the conical ring.

[0008] Furthermore, a sliding seat is slidably provided on the fixed column in the longitudinal direction, the sliding seat is an annular hollow structure, and the blocking device, the laser emitter and the photosensor are all fixedly mounted on the inner wall of the sliding seat.

[0009] Furthermore, the fixing column is arranged through the sliding seat, the sliding seat is slidable relative to the fixing column, a locking bolt is threadedly connected along the side wall of the sliding seat in a direction perpendicular to the length of the fixing column, and the end of the locking bolt is abutted against the side wall of the fixing column.

[0010] Furthermore, the blocking piece is a flat plate structure, the blocking piece is in contact with the lower end surface of the funnel, and the blocking piece and the central axis of the funnel are perpendicular to each other.

[0011] Furthermore, the driving member is a cylinder, and the blocking piece is fixedly connected to the protruding end of the cylinder.

[0012] Furthermore, an annular groove is provided on the lower end surface of the funnel, and a sealing member is installed in the annular groove.

[0013] Furthermore, the powder coating outflow testing device also includes a base and a material receiving cup placed on the base, and the material receiving cup is located directly below the discharge port.

[0014] The beneficial effects of the utility model are as follows: in the powder coating outflow measuring device of the utility model, the laser transmitter is arranged near the discharge port. When the powder coating flows out of the discharge port, the powder coating can enter the laser range in a very short time, thereby blocking the photosensitive sensor from receiving the laser. At this time, the controller controls the timer to start timing in the first time, and the response speed is fast. At the same time, when the powder coating completely leaves the discharge port, the timer can stop timing in time. Compared with the prior art, the error value caused by the height difference is reduced, the timing time is more accurate, and the measurement result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional diagram of the powder coating outflow measuring device of the utility model;

[0017] Figure 2 yes Figure 1 A three-dimensional view of the powder coating outflow test device from another perspective;

[0018] Figure 3 yes Figure 1 A top view of a device for measuring the outflow of a powder coating;

[0019] Figure 4 yes Figure 3 A cross-sectional view of the device for measuring the outflow of a powder coating along AA;

[0020] Figure 5 yes Figure 1 The circuit control block diagram of the powder coating outflow measuring device shown.

[0021] In the figure: 1. bracket, 11. conical ring, 12. fixing column, 13. sliding seat, 131. locking bolt, 2. funnel, 21. discharge port, 22. annular groove, 23. sealing member, 3. blocking device, 31. blocking piece, 32. driving member, 4. measuring system, 41. laser transmitter, 42. photosensor, 43. controller, 44. timer, 5. base, 6. collecting cup. DETAILED DESCRIPTION

[0022] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0023] See also Figure 1-Figure 5The utility model provides a powder coating outflow measuring device, including a bracket 1, a funnel 2, a blocking device 3 and a measuring system (not shown in the figure), the funnel 2 is arranged on the bracket 1, and the funnel 2 is arranged vertically, a discharge port 21 is opened below the funnel 2, and the blocking device 3 is arranged below the discharge port 21. The blocking device 3 can open or close the discharge port 21 to allow the powder coating to flow freely downward from the discharge port 21 or retain the powder coating in the funnel 2, and the measuring system is used to measure the outflow of the powder coating.

[0024] As a preferred embodiment, the bracket 1 includes a conical ring 11 and a fixed column 12. The cross section of the conical ring 11 is a conical ring structure. The fixed column 12 is vertically connected to the bottom of the conical ring 11. The conical part of the funnel 2 located at the bottom is placed in the conical ring 11, and the funnel 2 is supported and fixed by the conical ring 11. When the funnel 2 is placed in the conical ring 11, the inner wall of the conical ring 11 fits with the outer wall of the conical part of the funnel 2, thereby realizing the self-positioning function of the funnel 2, and at the same time ensuring the connection stability between the funnel 2 and the conical ring 11, effectively preventing the funnel 2 from easily moving relative to the conical ring 11. In this embodiment, there are two fixed columns 12, which are symmetrically arranged on the opposite sides of the conical ring 11.

[0025] In specific implementation, the measuring personnel can replace the funnel 2 with a discharge port 21 of different sizes to meet the measuring needs. Since the outer wall of the replaced funnel 2 is in contact with the inner wall of the conical ring 11, when the funnel 2 is placed in the conical ring 11, the funnel 2 is always in a coaxial position with the conical ring 11.

[0026] The blocking device 3 includes a blocking piece 31 and a driving member 32 for driving the blocking piece 31 to move. The blocking piece 31 is movably disposed below the discharge port 21 by the driving member 32 . The movable blocking piece 31 can open or close the discharge port 21 .

[0027] The blocking piece 31 is a flat plate structure, the blocking piece 31 fits with the lower end surface of the funnel 2, and the blocking piece 31 and the central axis of the funnel 2 are perpendicular to each other. As a preferred embodiment, the driving member 32 is a cylinder, and the blocking piece 31 is fixedly connected to the protruding end of the cylinder. When in use, the blocking piece 31 is driven by the cylinder to make a linear motion, thereby opening or closing the discharge port 21. In other embodiments, the driving member 32 can also be a motor, and the blocking piece 31 is fixedly connected to the output shaft of the motor. At this time, the driving member 32 drives the blocking piece 31 to make a deflection motion on the horizontal plane, thereby opening or closing the discharge port 21. In the utility model, the specific form in which the driving member 32 drives the blocking piece 31 to move is not limited.

[0028] In addition, an annular groove 22 is formed on the lower end surface of the funnel 2, and a seal 23 is installed in the annular groove 22. The seal 23 is in close contact with the blocking piece 31 to improve the sealing between the funnel 2 and the blocking piece 31 to prevent leakage of the powder coating. The seal 23 is made of silicone or rubber material.

[0029] The measuring system includes a laser emitter 41, a photosensor 42, a controller 43 and a timer 44, and the photosensor 42 and the timer 44 are electrically connected to the controller 43. The laser emitter 41 and the photosensor 42 are respectively arranged on both sides below the discharge port 21, and are located below the blocking piece 31 and are arranged close to the discharge port 21. The laser emitted by the laser emitter 41 intersects with the central axis of the discharge port 21. Among them, the laser emitter 41 is used to emit laser, and the photosensor 42 is used to receive the laser emitted by the laser emitter 41, convert the optical signal into an electrical signal, and transmit the signal to the controller 43, and the controller 43 is used to receive the signal and control the timer 44 to work. In a specific embodiment, the controller 43 and the timer 44 can be arranged on the outer wall of the funnel 2.

[0030] The specific working process is as follows: the measuring personnel moves the blocking piece 31 to the bottom of the funnel 2 and blocks the discharge port 21, then weighs a specific weight (for example, 100g) of powder coating and pours it into the funnel 2, then turns on the laser emitter 41. At this time, the light intensity received by the photosensitive sensor 42 is strong, and the controller 43 controls the timer 44 not to work. When the user manipulates the driving member 32 to drive the blocking piece 31 to move and open the discharge port 21, the powder coating in the funnel 2 will flow freely downward along the central axis of the discharge port 21 and intersect with the laser. Under the obstruction of the powder coating, the light intensity acting on the photosensitive sensor 42 is instantly weakened. After receiving the signal, the controller 43 will control the timer 44 to start timing. When the powder coating flows downward and completely separates from the laser, the light intensity sensed by the photosensitive sensor 42 is instantly enhanced. At this time, the controller 43 controls the timer 44 to stop timing. At this time, the time recorded on the timer 44 is the time required for the powder coating to flow freely out of the funnel 2.

[0031] In the utility model, the laser emitter 41 is arranged near the discharge port 21. When the powder coating flows out of the discharge port 21, the powder coating can enter the laser range in a very short time, thereby blocking the photosensitive sensor 42 from receiving the laser. At this time, the controller 43 controls the timer 44 to start timing in the first time, and the response speed is fast. At the same time, when the powder coating completely leaves the discharge port 21, the timer 44 can stop timing in time. Compared with the prior art, the error value caused by the height difference is reduced, the timing time is more accurate, and the measurement result is more accurate.

[0032] As a preferred embodiment, the laser emitter 41 and the photosensitive sensor 42 are at the same horizontal height. At this time, the laser emitted by the laser emitter 41 is in a horizontal state, and the emitted laser is perpendicular to the central axis of the discharge port 21 . Figure 4 In the figure, the horizontal dotted line is used to indicate the laser, and the vertical dotted line is used to indicate the central axis of the discharge port 21.

[0033] In this embodiment, a sliding seat 13 is slidably provided on the fixed column 12 in the longitudinal direction, and the sliding seat 13 is an annular hollow structure. The blocking device 3, the laser emitter 41 and the photosensitive sensor 42 are all fixedly mounted on the inner wall of the sliding seat 13. Furthermore, the driving member 32 is fixedly mounted on the sliding seat 13. When in use, the sliding seat 13 is slid to drive the blocking device 3 to move upward or downward, so as to facilitate the adjustment of the distance between the blocking piece 31 and the discharge port 21, and ensure that the blocking piece 31 can fit closely with the discharge port 21 to play a sealing role.

[0034] As a preferred embodiment, the fixed column 12 is arranged through the sliding seat 13, and the sliding seat 13 can slide relative to the fixed column 12. The upper edge of the side wall of the sliding seat 13 is threadedly connected with a locking bolt 131 in a direction perpendicular to the length of the fixed column 12, and the end of the locking bolt 131 abuts against the side wall of the fixed column 12. When in use, by moving the sliding seat 13 to close the blocking piece 31 to close the discharge port 21, the inspection personnel can lock the sliding seat 13 on the fixed column 12 by tightening the locking bolt 131, thereby achieving the fixing effect of the sliding seat 13.

[0035] The powder coating flowability measuring device of the present invention also includes a base 5 and a receiving cup 6 placed on the base 5. The receiving cup 6 is located directly below the discharge port 21. The receiving cup 6 is used to recover the powder coating falling from the funnel 2. The bracket 1 is fixedly mounted on the base 5. Specifically, the fixing column 12 is fixedly mounted on the base 5.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A powder coating outflow measuring device, characterized in that: It includes a bracket, a funnel, a blocking device and a measuring system, the funnel is arranged on the bracket, a discharge port is opened below the funnel, the blocking device includes a blocking piece and a driving member for driving the blocking piece to move, the discharge port can be opened or closed when the blocking piece moves, the measuring system includes a laser emitter, a photosensitive sensor, a controller and a timer, the photosensitive sensor and the timer are electrically connected to the controller, the laser emitter and the photosensitive sensor are respectively arranged on both sides below the discharge port, the photosensitive sensor is used to receive laser, and the laser emitted by the laser emitter intersects with the central axis of the discharge port.

2. The powder coating outflow measuring device according to claim 1, characterized in that: The laser emitter and the photosensor are at the same level.

3. The powder coating outflow measuring device according to claim 1, characterized in that: The support comprises a conical ring and a fixing column, wherein the fixing column is vertically connected below the conical ring, and the conical part of the funnel is matched and placed in the conical ring.

4. The powder coating outflow measuring device according to claim 3, characterized in that: A sliding seat is slidably provided on the fixed column along the longitudinal direction. The sliding seat is an annular hollow structure. The blocking device, the laser transmitter and the photosensor are all fixedly mounted on the inner wall of the sliding seat.

5. The powder coating outflow measuring device according to claim 4, characterized in that: The fixing column is arranged through the sliding seat, and the sliding seat can slide relative to the fixing column. A locking bolt is threadedly connected along the side wall of the sliding seat in a direction perpendicular to the length of the fixing column, and the end of the locking bolt abuts against the side wall of the fixing column.

6. The powder coating outflow measuring device according to claim 1, characterized in that: The blocking piece is a flat plate structure, the blocking piece is in contact with the lower end surface of the funnel, and the blocking piece and the central axis of the funnel are perpendicular to each other.

7. The powder coating outflow measuring device according to claim 6, characterized in that: The driving member is a cylinder, and the blocking piece is fixedly connected to the protruding end of the cylinder.

8. The powder coating outflow measuring device according to claim 6, characterized in that: An annular groove is provided on the lower end surface of the funnel, and a sealing member is installed in the annular groove.

9. The powder coating outflow measuring device according to claim 1, characterized in that: The powder coating outflow testing device further comprises a base and a material receiving cup placed on the base, wherein the material receiving cup is located directly below the material discharge port.

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