Coating impact testing device

Abstract

The utility model discloses a coating impact testing device, which belongs to the field of thermosetting powder coating performance testing, and comprises a bottom plate, limiting mechanisms arranged at the top of the bottom plate, an adjusting mechanism arranged between the limiting mechanisms, an impact mechanism arranged at the top of the adjusting mechanism, a marking mechanism arranged at the top of the impact hammer, and a marking mechanism arranged at the bottom of the marking mechanism. The marking mechanism comprises a material storage box, the bottom of the material storage box is connected with a discharging pipe, the discharging pipe is an elastic pipe, and a stirring assembly is arranged in the material storage box. The device has the beneficial effects that a marking mechanism is arranged, marking pigment in a storage box is conveyed to the bottom of an impact hammer through a discharging pipe, so that an impact site can be marked when the impact hammer impacts a coating, and a place with unobvious deformation can be conveniently observed; and the stirring rod is arranged in the storage box, the stirring rod is driven by the rotating shaft to rotate, the pigment in the storage box is mixed, and layering or solidification of the pigment is avoided.

Description

Technical Field

[0001] The utility model relates to the field of thermosetting powder coating performance testing, in particular to a coating impact testing device. Background Art

[0002] Thermosetting powder coatings are generally composed of resins, curing agents, pigments, fillers and additives. It is a hard coating formed by heating a thermosetting resin as a film-forming substance and adding a curing agent that reacts with a cross-linking reaction. It has good decorative properties, and because low molecular weight prepolymers can form a network of cross-linked macromolecules after curing, it also has good corrosion resistance and mechanical properties. After the thermosetting powder coating is produced, it needs to be sprayed and dried, and then the coating impact test is carried out to meet production requirements.

[0003] After searching, the Chinese patent publication number CN218896008U is found, which discloses a powder coating impact resistance tester. The tester, by setting an inclined plane, ensures that the weight can fall smoothly, and when the weight hits the test plate and rebounds upward, the stop bar can be against the blocking plane of the blocking bar under the elastic force of the elastic part, thereby effectively preventing the blocking bar from sliding upward over the stop bar, and then preventing the weight from rebounding, thereby improving the accuracy of the test results and reducing the error of the test results compared with traditional impact resistance testers.

[0004] In order to make the data more representative and understand the overall condition of the coating, it is usually necessary to conduct multi-point testing on the sample. However, some test points are less deformed and may not be convenient to observe after the experiment. Utility Model Content

[0005] The purpose of the utility model is to provide a coating impact testing device in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A coating impact testing device comprises a base plate, a mounting groove is provided on the top rear side of the base plate, a limiting mechanism is arranged on the top of the base plate, an adjusting mechanism is arranged between the limiting mechanisms, an impact mechanism is arranged on the top of the adjusting mechanism, the impact mechanism comprises an impact hammer, a marking mechanism is arranged on the top of the impact hammer, the marking mechanism comprises a material storage box, a discharge pipe is connected to the bottom of the material storage box, the discharge pipe is an elastic pipe, a discharge port is provided at the bottom of the impact hammer, and a stirring assembly is arranged in the material storage box.

[0008] Preferably, the stirring assembly includes a rotating motor fixedly connected to the top of the storage box, the output end of the rotating motor is connected to a rotating shaft through a coupling, and a plurality of stirring rods located in the storage box are fixedly connected to the rotating shaft.

[0009] Preferably, the adjustment mechanism includes a stepper motor fixedly connected in the installation slot, the output end of the stepper motor is connected to a lead screw rotatably connected in the installation slot through a coupling, and a slider slidably connected in the installation slot is threadedly connected to the lead screw.

[0010] Preferably, the impact mechanism also includes a mounting frame fixedly connected to the top of the slider, a material storage box fixedly connected to the top of the mounting frame, a sleeve fixedly connected to the inner top wall of the mounting frame, a slide plate slidably connected in the sleeve, a discharge pipe is connected between the material storage box and the slide plate, a connecting column is fixedly connected to the bottom of the slide plate, an impact hammer is fixedly connected to the bottom of the connecting column, the diameter of the impact hammer is smaller than the inner diameter of the sleeve, a sliding groove is provided on the front side of the sleeve, a fixing rod is fixedly connected to the front side of the slide plate, the fixing rod passes through the sliding groove and is fixedly connected to a handle, and the impact mechanism also includes a locking assembly to prevent the impact hammer from rebounding.

[0011] Preferably, the locking assembly includes an iron ring fixedly connected to the fixed rod, the bottom of the slide groove is fixedly connected to an electromagnet located directly below the iron ring, the inner wall of the sleeve is provided with a trigger switch at the same horizontal height as the electromagnet, and an external control switch is provided on the front side of the base plate.

[0012] Preferably, the limiting mechanism comprises vertical plates fixedly connected to both sides of the top of the bottom plate, a hydraulic cylinder is fixedly connected to one side of the vertical plates close to each other, and the other end of the hydraulic cylinder is fixedly connected to the limiting plate.

[0013] The beneficial effects are: a marking mechanism is provided, and the marking pigment in the storage box is transported to the bottom of the impact hammer through the discharge pipe, so that when the impact hammer impacts the coating, the impact location can be marked, which is convenient for observing the place where the deformation is not obvious; a stirring rod is provided in the storage box, and the stirring rod is driven to rotate by the rotating shaft to mix the pigment in the storage box to avoid stratification or solidification of the pigment.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of a coating impact testing device described in the utility model;

[0017] Figure 2 It is a front view of a coating impact testing device according to the utility model;

[0018] Figure 3It is a top view of a coating impact testing device described in the utility model;

[0019] Figure 4 It is a right view of the internal structure of a coating impact testing device described in the utility model;

[0020] Figure 5 It is a schematic diagram of an impact hammer of a coating impact testing device described in the utility model;

[0021] Figure 6 It is an enlarged view of point A of a coating impact testing device described in the utility model.

[0022] The description of the accompanying drawings is as follows: 1. bottom plate; 2. limit mechanism; 201. vertical plate; 202. hydraulic cylinder; 203. limit plate; 3. adjustment mechanism; 301. stepping motor; 302. screw rod; 303. slider; 4. impact mechanism; 401. mounting frame; 402. sleeve; 403. slide plate; 404. connecting column; 405. impact hammer; 406. fixing rod; 407. handle; 408. iron ring; 409. electromagnet; 410. trigger switch; 411. external control switch; 5. marking mechanism; 501. storage box; 502. discharge pipe; 503. rotating motor; 504. rotating shaft; 505. stirring rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 6As shown, a coating impact test device comprises a bottom plate 1, a mounting groove is provided on the top rear side of the bottom plate 1, a limiting mechanism 2 is provided on the top of the bottom plate 1, the limiting mechanism 2 comprises vertical plates 201 bolted to both sides of the top of the bottom plate 1, a hydraulic cylinder 202 is fixedly connected to one side of the vertical plates 201 close to each other, and a limiting plate 203 is fixedly connected to the other end of the hydraulic cylinder 202, and the limiting plate 203 is clamped by controlling the hydraulic cylinder 202 to limit the sample, so as to avoid the sample position being offset during the test;

[0027] An adjustment mechanism 3 is provided between the limit mechanisms 2, and the adjustment mechanism 3 includes a stepper motor 301 bolted in the mounting groove, the output end of the stepper motor 301 is connected to a screw rod 302 rotatably connected in the mounting groove through a coupling, and a slider 303 slidably connected in the mounting groove is threadedly connected on the screw rod 302. When the stepper motor 301 is started, the stepper motor 301 drives the screw rod 302 to rotate, and the screw rod 302 drives the slider 303 to move, so as to facilitate impact testing of different positions of the sample;

[0028] An impact mechanism 4 is provided at the top of the adjustment mechanism 3. The impact mechanism 4 includes a mounting frame 401 bolted to the top of the slider 303. A sleeve 402 is fixedly connected to the inner top wall of the mounting frame 401. A slide plate 403 is slidably connected in the sleeve 402. A connecting column 404 is inserted at the bottom of the slide plate 403. An impact hammer 405 is fixedly connected to the bottom of the connecting column 404. The diameter of the impact hammer 405 is smaller than the inner diameter of the sleeve 402. A slide groove communicating with the inside of the sleeve 402 is provided at the front side of the sleeve 402. A fixing rod 406 is inserted at the front side of the slide plate 403. The fixing rod 406 passes through the slide groove and is welded with a handle 407. A locking assembly for facilitating the limiting of the handle 407 is provided on the outer wall of the sleeve 402. The locking assembly is identical with the one with announcement number C The invention is consistent with that disclosed in the Chinese patent of N218896008U, which is the prior art and will not be described in detail. An iron ring 408 is fixedly connected to the fixing rod 406, and an electromagnet 409 located directly below the iron ring 408 is fixedly connected to the bottom of the slide slot. A trigger switch 410 at the same level as the electromagnet 409 is provided on the inner wall of the sleeve 402, which ensures that the impact hammer 405 will not be affected by the adsorption force when it freely falls to impact the coating, and ensures that after the impact, the electromagnet 409 is energized to immediately adsorb the iron ring 408, so as to avoid the impact hammer 405 rebounding and multiple impacts on the same test point, thereby affecting the accuracy of the test. An external control switch 411 is provided on the front side of the bottom plate 1 to control the power off of the electromagnet 409;

[0029] A marking mechanism 5 is provided on the top of the impact hammer 405, and the marking mechanism 5 includes a storage box 501 bolted to the top of the mounting frame 401, a rotating motor 503 is bolted to the top of the storage box 501, and the output end of the rotating motor 503 is connected to a rotating shaft 504 through a coupling, and a plurality of stirring rods 505 located in the storage box 501 are welded on the rotating shaft 504, and a discharge pipe 502 is connected to the bottom of the storage box 501, and a control valve is provided in the discharge pipe 502. The discharge pipe 502 is a corrugated pipe, and the other end of the discharge pipe 502 is fixedly connected to the top of the slide 403. A feeding cavity connected to the discharge pipe 502 is provided inside the impact hammer 405, and a discharge port connected to the feeding cavity is provided at the bottom of the impact hammer 405. The pigment in the storage box 501 is transported to the bottom of the impact hammer 405 through the discharge pipe 502, so that the impact hammer 405 can mark the impact location while impacting the sample.

[0030] Working principle: When in use, first place the prepared sample on the top of the bottom plate 1, control the hydraulic cylinder 202 to make the limit plate 203 clamp the sample, limit the sample to avoid the sample position deviation during the test, hold the handle 407, move the impact hammer 405 to a certain height, then release the handle 407, let the impact hammer 405 fall freely, and impact the sample, when the slide plate 403 contacts the trigger switch 410, the electromagnet 409 is energized to adsorb the iron ring 408, avoid the impact hammer 405 rebounding, and impact the same test point multiple times, thereby affecting the accuracy of the test, open the control valve, and discharge the material through the discharge pipe 502. The pigment in the storage box 501 is transported to the bottom of the impact hammer 405, so that the impact hammer 405 can mark the impact location while impacting the sample, which is convenient for observing the situation of the test point. The rotating motor 503 is started, and the rotating shaft 504 is driven by the rotating motor 503 to drive the stirring rod 505 to rotate, so as to facilitate stirring the pigment in the storage box 501 to prevent the pigment from solidifying or stratifying due to long-term non-use. The stepper motor 301 is started, and the stepper motor 301 drives the screw rod 302 to rotate, and the screw rod 302 drives the slider 303 to drive the mounting frame 401 to move, so as to facilitate impact testing at different positions and make the test data more representative.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A coating impact testing device, comprising a base plate (1), a mounting groove is provided on the top rear side of the base plate (1), a limiting mechanism (2) is provided on the top of the base plate (1), an adjusting mechanism (3) is provided between the limiting mechanisms (2), an impact mechanism (4) is provided on the top of the adjusting mechanism (3), and the impact mechanism (4) includes an impact hammer (405), characterized in that: A marking mechanism (5) is arranged on the top of the impact hammer (405), and the marking mechanism (5) comprises a material storage box (501). A discharge pipe (502) is connected to the bottom of the material storage box (501), and the discharge pipe (502) is an elastic tube. A discharge port is opened at the bottom of the impact hammer (405), and a stirring assembly is arranged in the material storage box (501).

2. A coating impact testing device according to claim 1, characterized in that: The stirring assembly comprises a rotating motor (503) fixedly connected to the top of the material storage box (501), the output end of the rotating motor (503) is connected to a rotating shaft (504) via a coupling, and a plurality of stirring rods (505) located in the material storage box (501) are fixedly connected to the rotating shaft (504).

3. A coating impact testing device according to claim 1, characterized in that: The adjustment mechanism (3) comprises a stepper motor (301) fixedly connected in the installation slot, the output end of the stepper motor (301) being connected to a lead screw (302) rotatably connected in the installation slot via a coupling, and a slider (303) being threadedly connected to the lead screw (302) and slidably connected in the installation slot.

4. A coating impact testing device according to claim 3, characterized in that: The impact mechanism (4) further comprises a mounting frame (401) fixedly connected to the top of the slider (303); the material storage box (501) is fixedly connected to the top of the mounting frame (401); a sleeve (402) is fixedly connected to the inner top wall of the mounting frame (401); a slide plate (403) is slidably connected inside the sleeve (402); the discharge pipe (502) is connected between the material storage box (501) and the slide plate (403); and the bottom of the slide plate (403) is fixedly connected to A connecting column (404), the impact hammer (405) is fixedly connected to the bottom of the connecting column (404), the diameter of the impact hammer (405) is smaller than the inner diameter of the sleeve (402), a sliding groove is provided on the front side of the sleeve (402), a fixing rod (406) is fixedly connected to the front side of the slide plate (403), the fixing rod (406) passes through the sliding groove and is fixedly connected to a handle (407), and the impact mechanism (4) also includes a locking assembly to prevent the impact hammer (405) from rebounding.

5. A coating impact testing device according to claim 4, characterized in that: The locking assembly comprises an iron ring (408) fixedly connected to the fixing rod (406); the bottom of the slide groove is fixedly connected to an electromagnet (409) located directly below the iron ring (408); the inner wall of the sleeve (402) is provided with a trigger switch (410) at the same level as the electromagnet (409); and the front side of the base plate (1) is provided with an external control switch (411).

6. A coating impact testing device according to claim 1, characterized in that: The limiting mechanism (2) comprises vertical plates (201) fixedly connected to both sides of the top of the bottom plate (1); a hydraulic cylinder (202) is fixedly connected to one side of the vertical plates (201) close to each other; and the other end of the hydraulic cylinder (202) is fixedly connected to a limiting plate (203).

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