Plastic spraying adhesive force detection device

Abstract

The utility model discloses a plastic spraying adhesive force detection device which comprises a bottom plate, a positioning mechanism is arranged on the top side of the bottom plate, a round hole is formed in the center of the top side of the bottom plate, and a detection assembly is arranged in the round hole. After the plastic spraying part is fixed, the air pump is started to slowly pump out air in the storage barrel, so that the negative pressure strength in the storage barrel is gradually increased, the adsorption mechanism automatically fixes the top end of the piston rod and the plastic spraying layer together, and meanwhile, external air applies gradually-increased thrust to the piston rod; the control mechanism controls the air pump to stop running in time, at the moment, an operator can determine the plastic spraying adhesive force of the plastic spraying part according to the air pressure change monitored by the air pressure monitoring sensor, the device is high in automation degree and convenient to operate, the adsorption force borne by the plastic spraying layer can be improved along with the improvement of the plastic spraying adhesive force, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of spray coating adhesion detection devices, and particularly relates to a spray coating adhesion detection device. Background Art

[0002] A spray coating adhesion detection device is a special tool or system used to test the adhesion between a spray coating and its substrate material. These devices usually follow specific standards or specifications to ensure the accuracy and reliability of test results.

[0003] For the existing spray coating adhesion detection devices, the spray coating adhesion is generally tested by a counterweight block or a hydraulic rod. First, the accessories need to be clamped and fixed through a clamping mechanism, then one end of the device is fixed to the spray coating through an adsorption mechanism, and then a pulling force is gradually applied to the spray coating to detect the spray coating adhesion. The operation is troublesome, and the adsorption force of the adsorption mechanism will directly affect the detection range of the device, thereby reducing the applicable range of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spray coating adhesion detection device, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A spray coating adhesion detection device includes a bottom plate. A positioning mechanism is provided on the top side of the bottom plate. A round hole is opened at the central position of the top side of the bottom plate. A detection component is arranged in the round hole. The detection component includes a storage cylinder. The storage cylinder is fixedly installed in the bottom opening of the round hole. An air pump is fixedly installed on the inner bottom side of the storage cylinder, and the bottom opening of the air pump fixedly penetrates through the cylinder wall of the storage cylinder. A pressure monitoring sensor is fixedly installed on the inner ring wall of the storage cylinder. A piston rod is slidably installed in the top opening of the storage cylinder. An adsorption mechanism is arranged on the top side of the piston rod. A control mechanism is arranged between the top side of the storage cylinder and the adsorption mechanism.

[0006] Preferably, the positioning mechanism includes a support plate shaped like a U. The support plate is fixedly installed at the middle position of the top side of the bottom plate through bolts. A hydraulic rod is fixedly installed on the inner wall of the support plate corresponding to the position of the round hole through bolts. A pressing plate is fixedly installed at the bottom end of the hydraulic rod.

[0007] Preferably, a cutting knife shaped like a ring is fixedly installed on the top side of the bottom plate corresponding to the position of the round hole, and the inner ring wall of the cutting knife is coplanar with the inner wall of the round hole.

[0008] Preferably, the adsorption mechanism includes a fixed cylinder, which is arranged above the storage cylinder, and the outer peripheral wall of the fixed cylinder is in contact with the inner wall of the circular hole and the inner wall of the cutter. The axial center position of the piston rod is hollow, and the top end of the piston rod fixedly penetrates through the inner bottom wall of the fixed cylinder. A plurality of connection holes are arranged in a circumferential array at the top end of the storage cylinder.

[0009] Preferably, an annular groove is formed at the top end of the fixed cylinder, a soft ring is slidably installed in the annular groove, and the top side of the soft ring extends above the cutter.

[0010] Preferably, the control mechanism includes a plurality of pressure sensors, which are arranged in a circumferential array between the piston rod and the plurality of connection holes, and the bottom end of each pressure sensor is fixedly connected to the top side of the storage cylinder. A limiting ring is fixedly installed at the top ends of the plurality of pressure sensors. A spring is arranged between the limiting ring and the fixed cylinder, and the two ends of the spring are respectively fixedly connected to the limiting ring and the bottom side of the fixed cylinder.

[0011] The utility model has at least the following beneficial effects:

[0012] 1. When the improved plastic spraying adhesion detection device is in use, the operator places the plastic sprayed part on the bottom plate. The plastic sprayed part can be constrained and limited through the positioning component, and at the same time, a specific-sized plastic spraying layer is cut from the plastic sprayed part, and the plastic spraying layer is closely attached to the adsorption mechanism, without the operator performing other operations, which facilitates the clamping and fixing of the plastic sprayed part.

[0013] 2. According to the above, after the plastic sprayed part is fixed, the air pump is started to slowly pump out the gas in the storage cylinder, so that the negative pressure intensity in the storage cylinder gradually increases. At this time, the adsorption mechanism automatically fixes the top end of the piston rod to the plastic spraying layer. At the same time, the external gas exerts a gradually increasing thrust on the piston rod. When the plastic spraying layer is separated from the plastic sprayed part, the control mechanism controls the air pump to stop running in time. At this time, the operator can determine the plastic spraying adhesion of the plastic sprayed part according to the air pressure change monitored by the air pressure monitoring sensor. The device has a high degree of automation, is easy to operate, and the adsorption force received by the plastic spraying layer can increase with the improvement of the plastic spraying adhesion, expanding the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the whole of the present invention;

[0016] Figure 2 Front view of the internal structure of part of the bottom plate of the present utility model;

[0017] Figure 3 Schematic diagram of the internal structure of the bottom plate of the present utility model;

[0018] Figure 4 Front view of the internal structure of the fixed cylinder and the storage cylinder of the present utility model;

[0019] Figure 5 Schematic diagram of the overall structure of the storage cylinder and the piston rod of the present utility model.

[0020] In the figure: 1. Bottom plate; 2. Round hole; 3. Positioning mechanism; 31. Support plate; 32. Hydraulic rod; 33. Pressing plate; 34. Cutting knife; 4. Detection component; 41. Storage cylinder; 42. Air pump; 43. Air pressure monitoring sensor; 44. Adsorption mechanism; 441. Fixed cylinder; 443. Sealing ring; 444. Annular groove; 445. Soft ring; 45. Control mechanism; 451. Pressure sensor; 452. Limiting ring; 453. Spring; 46. Piston rod. Specific embodiments

[0021] In order to make the technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] The present utility model provides a technical solution: Refer to Figure 1 - Figure 5 , a spray coating adhesion detection device disclosed by the present utility model includes a bottom plate 1, a positioning mechanism 3 is provided on the top side of the bottom plate 1, a round hole 2 is opened at the center position of the top side of the bottom plate 1, a detection component 4 is arranged in the round hole 2, the detection component 4 includes a storage cylinder 41, the storage cylinder 41 is fixedly installed in the bottom opening of the round hole 2, an air pump 42 is fixedly installed on the inner bottom side of the storage cylinder 41, and the bottom opening of the air pump 42 fixedly penetrates the cylinder wall of the storage cylinder 41, an air pressure monitoring sensor 43 is fixedly installed on the inner ring wall of the storage cylinder 41, a piston rod 46 is slidably installed in the top opening of the storage cylinder 41, an adsorption mechanism 44 is arranged on the top side of the piston rod 46, and a control mechanism 45 is arranged between the top side of the storage cylinder 41 and the adsorption mechanism 44.

[0023] In this embodiment, when the improved spray coating adhesion detection device is in use, the operator places the spray-coated part on the bottom plate 1, and then the positioning component presses the spray-coated part downward with a specific force. While completing the restraint and limitation of the spray-coated part, a spray coating layer of a specific size is cut from the spray-coated part, and the spray coating layer is made to closely adhere to the adsorption mechanism 44. Then, the air pump 42 is started to slowly extract the gas in the storage cylinder 41, so that a negative pressure cavity is formed in the storage cylinder 41, and the negative pressure intensity gradually increases. At this time, the adsorption mechanism 44 automatically completes the fixed connection between the top end of the piston rod 46 and the spray coating layer, and as the negative pressure intensity in the storage cylinder 41 increases, the adsorption force on the spray coating layer also gradually increases. At the same time, the external gas exerts a downward thrust on the piston rod 46, and as the negative pressure intensity in the storage cylinder 41 increases, the thrust on the piston rod 46 also gradually increases. When the spray coating layer is separated from the spray-coated part, the control mechanism 45 controls the air pump 42 to stop running in a timely manner. The adsorption force on the spray coating layer can increase as the spray coating adhesion improves, and various spray-coated parts with spray coating adhesion can be detected, expanding the scope of application of the device. At this time, the operator can determine the spray coating adhesion of the spray-coated part according to the air pressure change monitored by the air pressure monitoring sensor 43. The device has a high degree of automation and is convenient to operate.

[0024] In a further preferred embodiment of the present utility model, as Figure 1 shown, the positioning mechanism 3 includes a support plate 31 arranged in a U-shaped shape. The support plate 31 is fixedly installed at the middle position on the top side of the bottom plate 1 by bolts. At the position corresponding to the circular hole 2 on the inner wall of the support plate 31, a hydraulic rod 32 is fixedly installed by bolts, and a pressing plate 33 is fixedly installed at the bottom end of the hydraulic rod 32;

[0025] In this embodiment, after the above-mentioned operator places the spray-coated part on the bottom plate 1, the hydraulic rod 32 is started to push the pressing plate 33 towards the spray-coated part, and the pressing plate 33 presses the spray-coated part with a specific pressure, so as to restrain and limit the spray-coated part through the friction between the pressing plate 33 and the spray-coated part.

[0026] In a further preferred embodiment of the present utility model, as Figure 2 and Figure 3 shown, a cutter 34 arranged in a ring shape is fixedly installed at the position corresponding to the circular hole 2 on the top side of the bottom plate 1, and the inner ring wall of the cutter 34 is coplanar with the inner wall of the circular hole 2;

[0027] In this embodiment, when the above-mentioned pressing plate 33 presses the spray-coated part, due to the mutual contact between the cutter 34 and the spray-coated part, the cutter 34 can cut off the spray coating layer on the spray-coated part, and the cut spray coating layer is inserted into the cutter 34, without the operator performing other operations, and automatically completes the cutting of the spray coating layer on the spray-coated part while completing the limit fixation of the spray-coated part.

[0028] In a further preferred embodiment of the present utility model, as Figure 3 -Figure 5 As shown in the figure, the adsorption mechanism 44 includes a fixed cylinder 441. The fixed cylinder 441 is arranged above the storage cylinder 41, and the outer peripheral wall of the fixed cylinder 441 is in contact with the inner wall of the circular hole 2 and the inner wall of the cutting knife 34. The axial center position of the piston rod 46 is hollow, and the top end of the piston rod 46 fixedly penetrates the inner bottom wall of the fixed cylinder 441. A plurality of connection holes are arranged in a circumferential array at the top end of the storage cylinder 41;

[0029] In this embodiment, while a negative pressure chamber is formed in the storage cylinder 41, the gas in the fixed cylinder 441 simultaneously flows into the storage cylinder 41 through the holes in the piston rod 46, so that a negative pressure chamber is simultaneously formed in the fixed cylinder 441, applying an adsorption force to the sprayed plastic layer, and then fixing the sprayed plastic layer to the top end of the piston rod 46.

[0030] In a further preferred embodiment of the present utility model, as Figure 4 shown, an annular groove 444 is formed at the top end of the fixed cylinder 441. A soft ring 445 is slidably installed in the annular groove 444, and the top side of the soft ring 445 extends above the cutting knife 34;

[0031] In this embodiment, during the process of the cutting knife 34 cutting off the sprayed plastic layer, due to the mutual contact between the cutting knife 34 and the soft ring 445 when the cutting knife 34 cuts off the sprayed plastic layer, the soft ring 445 deforms adaptively according to the contact position to block the gap between the open end of the fixed cylinder 441 and the sprayed plastic part, making the negative pressure chamber in the fixed cylinder 441 more stable.

[0032] In a further preferred embodiment of the present utility model, as Figure 4 and Figure 5 shown, the control mechanism 45 includes a plurality of pressure sensors 451. The plurality of pressure sensors 451 are arranged in a circumferential array between the piston rod 46 and the plurality of connection holes, and the bottom end of each pressure sensor 451 is fixedly connected to the top side of the storage cylinder 41. A limiting ring 452 is fixedly installed at the top ends of the plurality of pressure sensors 451. A spring 453 is arranged between the limiting ring 452 and the fixed cylinder 441, and the two ends of the spring 453 are respectively fixedly connected to the limiting ring 452 and the bottom side of the fixed cylinder 441;

[0033] In this embodiment, after the soft ring 445 deforms and retracts into the annular groove 444, due to the mutual contact between the sprayed plastic layer and the open end of the fixed cylinder 441, when the cutting knife 34 cuts off the sprayed plastic layer and inserts into the cutting knife 34, it pushes the fixed cylinder 441 to move a certain distance downward and compresses the spring 453. At this time, due to the pushing of the spring 453 on the fixed cylinder 441, the open end of the fixed cylinder 441 is closely attached to the sprayed plastic part, and at the same time, the pressure sensors 451 monitor the corresponding intensity of the pressure. After the pressure monitored by the pressure sensors 451 no longer changes, the air pump 42 is controlled to start, without the need for other operations by the operator;

[0034] After the above-mentioned spray-painted layer is separated from the spray-painted part, the piston rod 46 moves downward, and the fixed cylinder 441 drops accordingly, so that the pressure monitored by the pressure sensor 451 changes. At this time, the air pump 42 stops running, the hydraulic rod 32 contracts and pulls the pressure plate 33 to reset, and at the same time controls the air pressure monitoring sensor 43 to stop running synchronously, and no longer continues to detect the air pressure changes in the storage cylinder 41, so as to facilitate the subsequent use of the device.

[0035] Working principle: When the improved spray-molded adhesion testing device is used, the spray-molded part is first placed on the cutter 34, and then the hydraulic rod 32 is started to push the pressure plate 33 toward the spray-molded part, and the pressure plate 33 presses the spray-molded part with a specific pressure. At this time, the cutter 34 cuts off the spray-molded layer attached to the spray-molded part, and the spray-molded part is clamped and positioned from both sides through the bottom plate 1 and the pressure plate 33;

[0036] In the process of cutting the plastic-sprayed layer, the cutter 34 cuts off the plastic-sprayed layer and the soft ring 445, and the soft ring 445 performs adaptive deformation according to the contact position to block the gap between the open end of the fixed cylinder 441 and the plastic-sprayed part. Moreover, due to the mutual conflict between the plastic-sprayed layer and the open end of the fixed cylinder 441, the cutter 34 cuts off the plastic-sprayed layer and pushes the fixed cylinder 441 downward to move a certain distance when inserted into the cutter 34, and compresses the spring 453. At this time, due to the push of the spring 453 on the fixed cylinder 441, the open end of the fixed cylinder 441 is tightly fitted with the plastic-sprayed part, and at the same time, the pressure sensor 451 monitors the pressure of the corresponding intensity.

[0037] After the pressure monitored by the pressure sensor 451 stops changing, the air pump 42 starts to slowly extract the gas in the storage cylinder 41, so that a negative pressure cavity is formed in the storage cylinder 41 and the fixed cylinder 441, and the negative pressure cavity strength of the negative pressure cavity gradually increases. The negative pressure cavity in the fixed cylinder 441 can exert an adsorption force on the plastic spraying layer on the plastic spraying part, so that the fixed cylinder 441 and the plastic spraying layer are stably fixed together. At the same time, the external gas flows into the fixed cylinder 441 through the connecting hole and exerts a downward thrust on the piston rod 442, and the thrust increases with the increase of the negative pressure strength in the storage cylinder 41.

[0038] As the thrust of the gas on the piston rod 442 increases, the downward pulling force on the plastic-sprayed layer also increases. When the plastic-sprayed layer cut by the cutter 34 is separated from the plastic-sprayed part, the fixed cylinder 441 drops accordingly, so that the pressure monitored by the pressure sensor 451 changes accordingly. At this time, the air pump 42 stops running, and the hydraulic rod 32 contracts to pull the pressure plate 33 to reset.

[0039] It should be noted that after the above-mentioned fixed cylinder 441 moves downward, outside air flows into the round hole 2 and the fixed cylinder 441 from the gap between the sprayed part and the bottom plate 1, thereby automatically relieving the negative pressure chamber states in the round hole 2 and the fixed cylinder 441. At this time, the operator can directly remove the sprayed part from the bottom plate 1, and due to the push of the spring 453 on the fixed cylinder 441, the fixed cylinder 441 automatically moves upward to reset;

[0040] During the process of pressure change in the above-mentioned storage cylinder 41, the air pressure monitoring sensor 43 monitors the pressure change in the storage cylinder 41 in real time, so as to determine the spraying adhesion of the sprayed part according to the air pressure change in the storage cylinder 41;

[0041] It should be noted that a control panel can be installed on the bottom plate 1 to calculate and display the value of the adhesion force, and control the hydraulic rod 32, the air pump 42, the pressure sensor 451 and the air pressure monitoring sensor 43.

[0042] The above has shown and described the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder spraying adhesion detection device, comprising a bottom plate (1), characterized in that: A positioning mechanism (3) is provided on the top side of the bottom plate (1). A round hole (2) is formed at the center position of the top side of the bottom plate (1). A detection assembly (4) is arranged in the round hole (2). The detection assembly (4) includes a storage cylinder (41). The storage cylinder (41) is fixedly installed in the bottom opening of the round hole (2). An air pump (42) is fixedly installed on the inner bottom side of the storage cylinder (41), and the bottom opening of the air pump (42) fixedly penetrates through the cylinder wall of the storage cylinder (41). A barometric pressure monitoring sensor (43) is fixedly installed on the inner ring wall of the storage cylinder (41). A piston rod (46) is slidably installed in the top opening of the storage cylinder (41). An adsorption mechanism (44) is arranged on the top side of the piston rod (46). A control mechanism (45) is arranged between the top side of the storage cylinder (41) and the adsorption mechanism (44).

2. The spray coating adhesion detection device according to claim 1, characterized in that: The positioning mechanism (3) includes a support plate (31) shaped like a U. The support plate (31) is fixedly installed at the middle position of the top side of the bottom plate (1) by bolts. A hydraulic rod (32) is fixedly installed on the inner wall of the support plate (31) corresponding to the position of the round hole (2) by bolts. A pressing plate (33) is fixedly installed at the bottom end of the hydraulic rod (32).

3. The spray coating adhesion detection device according to claim 2, wherein: A cutting knife (34) shaped like a ring is fixedly installed on the top side of the bottom plate (1) corresponding to the position of the round hole (2), and the inner ring wall of the cutting knife (34) is coplanar with the inner wall of the round hole (2).

4. The spray painting adhesion detection device according to claim 3, wherein: The adsorption mechanism (44) includes a fixed cylinder (441). The fixed cylinder (441) is arranged above the storage cylinder (41), and the outer peripheral wall of the fixed cylinder (441) is in contact with the inner wall of the round hole (2) and the inner wall of the cutting knife (34). The axial center position of the piston rod (46) is hollow, and the top end of the piston rod (46) fixedly penetrates through the inner bottom wall of the fixed cylinder (441). A plurality of connection holes (443) are formed in a circumferential array at the top end of the storage cylinder (41).

5. The spray coating adhesion detection device according to claim 4, characterized in that: An annular groove (444) is formed at the top end of the fixed cylinder (441). A soft ring (445) is slidably installed in the annular groove (444), and the top side of the soft ring (445) extends above the cutting knife (34).

6. The spray coating adhesion detection device according to claim 5, wherein: The control mechanism (45) includes a plurality of pressure sensors (451). The plurality of pressure sensors (451) are arranged in a circumferential array between the piston rod (46) and the plurality of connection holes (443), and the bottom end of each pressure sensor (451) is fixedly connected to the top side of the storage cylinder (41). A limiting ring (452) is fixedly installed on the top ends of the plurality of pressure sensors (451) together. A spring (453) is arranged between the limiting ring (452) and the fixed cylinder (441), and the two ends of the spring (453) are respectively fixedly connected to the limiting ring (452) and the bottom side of the fixed cylinder (441).

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