A patch coater for laboratory use

Abstract

A patch coater for laboratory use, comprising a base housing, an asbestos board, a heating plate, a heat conducting plate, a coating plate, a scraper base, a driving mechanism, a heating device, a scraper linkage mechanism, a handle rotating block and a handle; the asbestos board is covered and arranged on the top surface of the base housing; the heating plate is arranged on the upper surface of the asbestos board; the heat conducting plate is attached and arranged on the upper surface of the heating plate; the coating plate is attached and arranged on the upper surface of the heat conducting plate; the scraper base is arranged on the upper surface of the base housing; the driving mechanism is in transmission connection with the scraper connecting seat; the heating device is arranged on the top surface of the coating plate; the scraper linkage mechanism is arranged between the two scraper bases on both sides; the handle rotating block is arranged on the outer side of the scraper connecting seat; the handle is arranged on one side of the scraper connecting seat. The device of the present invention can perform electric or manual adjustment on the scraper structure to press down, the structure of the device is compact, the volume is small, and the downward pressure of the scraper device can be adjusted, and the device is flexible in the use process.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a patch coater for laboratory use. Background Art

[0002] Coaters are mainly used in the surface coating process production of films, papers, etc. This machine coats a roll of base material with a glue, coating, ink, etc. with a specific function, and then winds it up after drying. In the field of medical experiments, drugs need to be experimented in the laboratory, and the drugs in the experiments include plasters. When actually measuring the drug properties of plasters, small pieces of drug plasters are required for sampling experiments. In the existing technology, it is impossible to make drug plasters in the laboratory according to different experimental requirements. Now, a drug coating device that can be used for on-site production in the laboratory is needed, which can directly make small pieces of ointment in the laboratory for convenient experimental use. Summary of the Invention

[0003] In order to solve the above existing problems, the present invention discloses a patch coater for laboratory use, and its specific technical solution is as follows: A patch coater for laboratory use includes a base housing, an asbestos board, a heating board, a heat conducting board, a coating board, a scraper base, a driving mechanism, a heating device, a scraper linkage mechanism, a handle rotating block, and a handle.

[0004] The base housing is in a cuboid shape and is a hollow structure; one end of the upper surface of the base housing is provided with a waste liquid storage box; one side of the base housing is provided with a control panel, and one side of the base housing is provided with a power switch; the asbestos board is covered on the top surface of the base housing; the heating board is arranged on the upper surface of the asbestos board; the heat conducting board is attached to the upper surface of the heating board; the coating board is attached to the upper surface of the heat conducting board.

[0005] The scraper base is arranged on the upper surface of the base housing and is perpendicular to the base housing. A scraper connecting seat is provided at the bottom end of the scraper base, and the scraper connecting seat is fixedly connected to the scraper base; the driving mechanism is arranged inside the base housing, and the driving mechanism is in transmission with the scraper connecting seat to realize the sliding arrangement of the scraper base and the base housing.

[0006] The heating device is a lifting plate and a heating lamp. The lifting plate is arranged on one side of the scraper base, and both ends of the lifting plate are vertically and fixedly arranged on the side of the scraper base. The heating lamp is arranged on the bottom surface of the lifting plate, and the heating lamp is fixed to the lifting plate through fasteners.

[0007] The scraper linkage mechanism is arranged between the scraper bases on both sides, and the scraper linkage mechanism includes a scraper fixed slide, a scraper movable slide, a scraper sliding track, a scraper fixed sheet and a first scraper; the scraper fixed slide is arranged between the scraper bases on both sides, and the two sides of the scraper fixed slide are fixed to the side walls fixed to the scraper base; the scraper movable slide is arranged on one side of the scraper fixed slide; the scraper sliding track is arranged between the scraper fixed slide and the scraper movable slide, and the scraper movable slide is longitudinally slidable with the scraper fixed slide through the scraper sliding track, and the scraper fixed sheet is arranged on the bottom edge of the scraper movable slide; the first scraper is arranged on the bottom side of the scraper movable slide;

[0008] Furthermore, a clamping mechanism is provided at one end of the base shell, and the clamping mechanism includes a clamping seat, a clamping block and a locking bolt. The clamping seat is arranged at one end of the base shell and is fixedly connected to the base shell, and the cross-section of the clamping seat is an "L"-shaped structure; the clamping seat is arranged on the upper surface of the clamping seat, and the clamping seat is arranged in a close fit with one side of the base shell; the locking bolt passes through the side wall of the clamping seat, and the locking bolt is threadedly fixed to the clamping seat through a thread, and one end of the locking bolt extends into the clamping block and is rotatably arranged with the clamping block.

[0009] Furthermore, the heating plate, stepper motor and heating lamp are electrically connected to the control panel via wires.

[0010] Furthermore, the coating plate is made of marble.

[0011] Furthermore, the scraper base is in a "凵"-shaped structure, the top surface of the scraper base is attached to the bottom side of the asbestos board, and the bottom surface of the scraper base is attached to the upper surface of the base shell.

[0012] Furthermore, the driving mechanism includes a stepper motor and a screw rod, the stepper motor is arranged at one end inside the base shell, the screw rod is arranged at the other end inside the base shell, one end of the screw rod is connected to the stepper motor, the stepper motor realizes transmission with the screw rod, and the two ends of the screw rod are rotatably arranged with the two sides of the base shell through bearings; the screw rod passes through the scraper connecting seat, and the screw rod and the scraper connecting seat are threadedly connected.

[0013] Furthermore, blades are arranged on both sides of the top of the first scraper, the blades are arranged in the same direction, and the side surfaces of the blades on each side are sloped, and the blades on both sides are arranged at intervals.

[0014] The structural principle of the present invention is:

[0015] When the present invention is in use, place the bottom coating on the coating plate in a fitting manner. Insert one end of the bottom coating between the clamping seat and the clamping block. By tightening the locking bolt, the clamping block and the clamping seat are closed, and one end of the bottom coating is clamped. Move the scraper base horizontally to one side of the clamping mechanism of the bottom coating. By rotating and pressing down the handle, the handle rotating block loses the supporting effect on the scraper support frame. The support frame spring in the yielding state resumes deformation and presses down the scraper support frame. The scraper support frame drives the second scraper to press down. Then, adjust the gap between the second scraper and the bottom coating by rotating the side adjustment bolt, and observe the distance sensor to observe the distance between the second scraper and the bottom coating. Start the driving mechanism. The stepping motor drives the lead screw to rotate, driving the scraper base to move, and evenly scrape the coating liquid on the surface of the bottom coating. The excess waste liquid accumulates in the waste liquid storage box. Finally, the heating cover can be sealed. Start the heating plate and the exhaust fan. The heat conducting plate transfers the heat to the coating plate. The bottom coating and the coating liquid are bonded, and the air in the heating cover circulates unidirectionally to realize the coating process.

[0016] The beneficial effects of the present invention are:

[0017] The present invention designs a drug coating machine for making ointments in a drug laboratory during experiments, which can realize the on-site production of small pieces of ointments, and the production process is convenient. Through the combined drive of the stepping motor and the lead screw, the drug coating machine can realize the uniform drive of the scraper base. By electrically adjusting the downward pressure of the scraper and fitting it to the surface of the bottom coating, the scraper adopts a single-knife double-peak structure form, which can realize the two-time rapid coating process of the ointment, with a high degree of coating uniformity, and at the same time realize the heating process during the coating process of the bottom coating. The overall coating process is convenient to operate, and the efficiency of the coating process is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of Embodiment 1 of the present invention.

[0019] Figure 2 It is a front view sectional schematic diagram of Embodiment 1 of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the scraper linkage mechanism of Embodiment 1 of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0022] Figure 5 It is a front view schematic diagram of Embodiment 2 of the present invention.

[0023] Figure 6 It is a side view schematic diagram of Embodiment 2 of the present invention.

[0024] Figure 7 isFigure 6 Schematic diagram of the structure in the A-A direction

[0025] Figure 8 It is a schematic diagram of the structure of the blade linkage mechanism in Embodiment 3 of the present invention

[0026] Figure 9 It is a schematic diagram of the structure at the second blade in Embodiment 4 of the present invention

[0027] List of reference numerals

[0028] Base housing 1, waste liquid storage box 1-1, control panel 1-2, power switch 1-3, clamping mechanism 1-3, clamping seat 1-3-1, clamping block 1-3-2, locking bolt 1-3-3;

[0029] Asbestos board 2;

[0030] Heating plate 3;

[0031] Thermal conductive plate 4;

[0032] Coating plate 5;

[0033] Heating device 6, lifting plate 6-1, heating lamp 6-2, heating cover 6-3, heating cover air inlet hole 6-3-1, exhaust fan 6-3-2, blade base 7, blade connecting seat 7-1, blade holder limit hole 7-2;

[0034] Drive mechanism 8, stepping motor 8-1, lead screw 8-2;

[0035] Blade linkage mechanism 9, blade fixed slide 9-1, blade movable slide 9-2, blade sliding track 9-3, blade fixed piece 9-4, first blade 9-5, blade edge 9-6, blade support frame 9-7, support frame limit shaft 9-7-1, top connecting rod 9-8, support frame adjustment bolt 9-9, support frame spring 9-10, support cross bar 9-11, distance sensor 9-11-1, second blade 9-12, sub-blade 9-12-1, blade locking bolt 9-12-2, side adjustment bolt 9-13, middle adjustment bolt 9-14;

[0036] Handle rotating block 10;

[0037] Handle 11. Detailed implementation manners

[0038] To make the technical solutions of the present invention clearer and more definite, the present invention will be further described below with reference to the accompanying drawings. Any solutions obtained by equivalent replacement of the technical features of the technical solutions of the present invention and conventional reasoning fall within the protection scope of the present invention. In this embodiment, the fixed connections, fixed settings, and fixed structures mentioned are all well-known technologies such as gluing, welding, screw connection, bolt-nut connection, and riveting known to those skilled in the art.

[0039] Example 1

[0040] As can be seen in combination with the attached drawings, a patch coater for laboratory use includes a base housing 1, an asbestos board 2, a heating plate 3, a heat conducting plate 4, a coating plate 5, a scraper base 7, a driving mechanism 8, a heating device 6, a scraper linkage mechanism 9, a handle rotating block 10, and a handle 11;

[0041] The base housing 1 is in a cuboid shape and is a hollow structure; one end of the upper surface of the base housing 1 is provided with a waste liquid storage box 1-1; one side of the base housing 1 is provided with a control panel 1-2, and one side of the base housing 1 is provided with a power switch 1-3; the asbestos board 2 is covered on the top surface of the base housing 1; the heating plate 3 is arranged on the upper surface of the asbestos board 2; the heat conducting plate 4 is attached to the upper surface of the heating plate 3; the coating plate 5 is attached to the upper surface of the heat conducting plate 4;

[0042] The scraper base 7 is arranged on the upper surface of the base housing 1 and is perpendicular to the base housing 1. A scraper connecting seat 7-1 is provided at the bottom end of the scraper base 7, and the scraper connecting seat 7-1 is fixedly connected to the scraper base 7; the driving mechanism 8 is arranged inside the base housing 1, and the driving mechanism 8 is in transmission with the scraper connecting seat 7-1 to realize that the scraper base 7 is slidably arranged with the base housing 1;

[0043] The heating device 6 includes a lifting plate 6-1 and a heating lamp 6-2. The lifting plate 6-1 is arranged on one side of the scraper base 7, and both ends of the lifting plate 6-1 are vertically and fixedly arranged on the side of the scraper base 7. The heating lamp 6-2 is arranged on the bottom surface of the lifting plate 6-1, and the heating lamp 6-2 is fixed to the lifting plate 6-1 through a fastener;

[0044] The scraper linkage mechanism 9 is arranged between the two scraper bases 7. The scraper linkage mechanism 9 includes a scraper fixed slide plate 9-1, a scraper movable slide plate 9-2, a scraper sliding track 9-3, a scraper fixed piece 9-4, and a first scraper 9-5; the scraper fixed slide plate 9-1 is arranged between the two scraper bases 7, and both sides of the scraper fixed slide plate 9-1 are fixedly arranged on the side walls fixed to the scraper bases 7; the scraper movable slide plate 9-2 is arranged on one side surface of the scraper fixed slide plate 9-1; the scraper sliding track 9-3 is arranged between the scraper fixed slide plate 9-1 and the scraper movable slide plate 9-2, and the scraper movable slide plate 9-2 is longitudinally slidably arranged with the scraper fixed slide plate 9-1 through the scraper sliding track 9-3. The scraper fixed piece 9-4 is arranged at the bottom edge of the scraper movable slide plate 9-2; the first scraper 9-5 is arranged on the bottom side of the scraper movable slide plate 9-2;

[0045] The handle rotating block 10 is arranged on the outer side of the scraper connecting seat 7-1. One side of the handle rotating block 10 is rotatably arranged on the outer side wall of the scraper connecting seat 7-1 through a shaft; the handle 11 is arranged on one side of the scraper connecting seat 7-1, and both ends of the handle 11 are fixedly connected to one end of the handle rotating blocks 10 on both sides.

[0046] Furthermore, a clamping mechanism 1-3 is arranged at one end of the base housing 1. The clamping mechanism 1-3 includes a clamping seat 1-3-1, a clamping block 1-3-2 and a locking bolt 1-3-3. The clamping seat 1-3-1 is arranged at one end of the base housing 1 and is fixedly connected to the base housing 1. The cross section of the clamping seat 1-3-1 is in an "L" shape; the clamping block 1-3-2 is arranged on the upper surface of the clamping seat 1-3-1, and the clamping block 1-3-2 is attached to one side of the base housing 1; the locking bolt 1-3-3 penetrates through the side wall of the clamping seat 1-3-1, and the locking bolt 1-3-3 is threadedly fixed to the clamping seat 1-3-1 through threads. One end of the locking bolt 1-3-3 extends into the clamping block 1-3-2 and is rotatably arranged with the clamping block 1-3-2.

[0047] Furthermore, the heating plate 3 and the stepping motor 8-1 are electrically connected to the control panel 1-2 through wires.

[0048] Furthermore, the coating plate 5 is made of marble material.

[0049] Furthermore, the scraper base 7 is in a "U" shape structure. The top surface of the scraper base 7 is attached to the bottom side of the asbestos board 2, and the bottom surface of the scraper base 7 is attached to the upper surface of the base housing 1.

[0050] Furthermore, the driving mechanism 8 includes a stepping motor 8-1 and a lead screw 8-2. The stepping motor 8-1 is arranged at one end inside the base housing 1, and the lead screw 8-2 is arranged at the other end inside the base housing 1. One end of the lead screw 8-2 is connected to the stepping motor 8-1, and the stepping motor 8-1 drives the lead screw 8-2. Both ends of the lead screw 8-2 are rotatably arranged with both sides of the base housing 1 through bearings; the lead screw 8-2 penetrates through the scraper connecting seat 7-1, and the lead screw 8-2 is threadedly connected to the scraper connecting seat 7-1.

[0051] Furthermore, cutting edges 9-6 are arranged on both sides at the top end of the first scraper 9-5. The cutting edges 9-6 are arranged in the same direction, and the side surface of each cutting edge 9-6 is in a slope shape. The cutting edges 9-6 on both sides are arranged at intervals.

[0052] The structural principle of this embodiment is:

[0053] When this embodiment is in use, place the bottom coating on the coating plate. Clip one end of the bottom coating between the clamping seat and the clamping block. Tighten the locking bolt to close the clamping block and the clamping seat, and clamp one end of the bottom coating. Move the scraper base horizontally to one side of the clamping mechanism of the bottom coating. Electrically drive the scraper moving slide to move vertically downward along the scraper sliding track until the first scraper fits on the surface of the bottom coating. Then start the driving mechanism. The stepping motor drives the lead screw to rotate, driving the scraper base to move, and evenly scrape the coating liquid on the surface of the bottom coating. The excess waste liquid accumulates in the waste liquid storage box. When the scraper base moves horizontally for coating, the heating lamp irradiates the coated bottom coating for drying and heating at the same time.

[0054] The beneficial effects of this embodiment are:

[0055] This embodiment designs a drug coating machine for making ointments in a drug laboratory during experiments. It can realize the on-site production of small pieces of ointment, and the production process is convenient. Through the coordinated transmission of the stepping motor and the lead screw, the drug coating machine can achieve the uniform transmission of the scraper base. By electrically adjusting the downward pressure of the scraper to fit on the surface of the bottom coating, and the scraper adopts a single-knife double-peak structure, it can realize two rapid coating processes for the ointment, with a high degree of coating uniformity, and at the same time, the heating process is realized during the coating process of the bottom coating. The overall coating process is convenient to operate and the efficiency of the coating process is high.

[0056] Embodiment 2

[0057] As can be seen from the attached drawings, the difference between Embodiment 2 and Embodiment 1 lies in the heating device 6. The heating device 6 in Embodiment 2 is a heating hood 6-3, and the heating hood 6-3 is arranged on one side of the base housing 1. The heating hood 6-3 is rotatably arranged with the base housing 1 through a movable hinge.

[0058] Furthermore, one side of the heating hood 6-3 is provided with a heating hood air inlet hole 6-3-1, and one side of the top of the heating hood 6-3 is provided with an exhaust fan 6-3-2.

[0059] The structural principle of this embodiment is:

[0060] After the driving mechanism performs a single horizontal drive coating on the scraper base in this embodiment, close the heating hood, start the heating plate and the exhaust fan. The heat conducting plate transfers the heat to the coating plate, the bottom coating and the coating liquid are bonded, and the air in the heating hood circulates unidirectionally to realize the coating process.

[0061] Embodiment 3

[0062] As can be seen from the accompanying drawings, the difference between Embodiment 3 and Embodiment 1 lies in the scraper linkage mechanism 9. The scraper linkage mechanism 9 includes a scraper support frame 9-7, a top connecting rod 9-8, a support frame adjusting bolt 9-9, a support frame spring 9-10, a support cross bar 9-11, a second scraper 9-12, a side adjusting bolt 9-13 and a middle adjusting bolt 9-14. The number of the scraper support frames 9-7 is two, which are symmetrically arranged on both sides of the scraper base 7. The top connecting rod 9-8 is horizontally arranged at the top of the scraper support frame 9-7, and the bottom ends on both sides of the top connecting rod 9-8 are vertically and fixedly connected to the top surfaces of the scraper support frames 9-7 on both sides. The support frame adjusting bolt 9-9 is arranged at the top of each scraper support frame 9-7 and is perpendicular to the scraper support frame 9-7. Each support frame adjusting bolt 9-9 penetrates through the scraper support frame 9-7, and the bottom end of the support frame adjusting bolt 9-9 extends into the top end of the scraper base 7 and is in threaded connection with the scraper base 7. The support frame spring 9-10 is arranged on the outer wall of the support frame adjusting bolt 9-9. The top end of the support frame spring 9-10 abuts against the top end of the support frame adjusting bolt 9-9, and the bottom end of the support frame spring 9-10 abuts against the top surface of the scraper connection seat 7-1. The support cross bar 9-11 is arranged at the bottom ends of the scraper connection seats 7-1 on both sides, and both ends of the support cross bar 9-11 are fixedly connected to the scraper connection seat 7-1. The second scraper 9-12 is arranged on the bottom side of the support cross bar 9-11, and the second scraper 9-12 is arranged in the same direction as the support cross bar 9-11. The side adjusting bolt 9-13 is arranged at both ends on one side of the top connecting rod 9-8. Each side adjusting bolt 9-13 is fixed to the side wall of the top connecting rod 9-8. The bottom end of the side adjusting bolt 9-13 penetrates through the support cross bar 9-11 and extends into the top end of the second scraper 9-12 for rotatable setting. The middle adjusting bolt 9-14 is arranged in the middle of the upper surface of the support cross bar 9-11. The bottom end of the middle adjusting bolt 9-14 penetrates through the support cross bar 9-11 and extends into the top end of the second scraper 9-12 for threaded setting.

[0063] Furthermore, each scraper support frame 9-7 has an inverted "L" shape structure, and each scraper support frame 9-7 is attached to the side wall of the scraper base 7.

[0064] Furthermore, the top connecting rod 9-8 has an inverted "U" shape structure.

[0065] Further, a support frame limit shaft 9-7-1 is provided on the side wall of each scraper support frame 9-7. The side wall of the scraper base 7 is in a hollow structure, forming a scraper frame limit hole 7-2. The support frame limit shaft 9-7-1 is inserted into the scraper frame limit hole 7-2, and the support frame limit shaft 9-7-1 and the scraper frame limit hole 7-2 are movably arranged to realize the limit sliding of the scraper support frame 9-7 and the scraper base 7.

[0066] Further, a distance sensor 9-11-1 is provided at the top of the support cross bar 9-11. The number of the distance sensors 9-11-1 is two, and they are symmetrically arranged. Each support cross bar 9-11 is fixed to the support rod by bolts.

[0067] The structural principle of this embodiment is as follows:

[0068] When this embodiment is used, the scraper base is horizontally moved to one side of the clamping mechanism of the bottom coating. By rotating and pressing the handle downwards, the handle rotating block loses the supporting effect on the scraper support frame, and the support frame spring in the yielding state restores deformation, pressing down the scraper support frame, and the scraper support frame drives the scraper to press downwards; then, the gap between the scraper and the bottom coating is adjusted by rotating the side adjustment bolt, and the distance sensor is observed to observe the distance between the scraper and the bottom coating; the driving mechanism is started, the stepping motor drives the lead screw to rotate, driving the scraper base to move, and uniformly scraping the coating liquid on the surface of the bottom coating, and the excess waste liquid accumulates in the waste liquid storage box.

[0069] The beneficial effects of this embodiment are as follows:

[0070] The present invention designs a drug coating machine. Through the cooperation of the support frame adjustment bolt and the support frame spring, the uniform force pressing of the scraper support frame can be realized, and the pressing force of the scraper support frame can be adjusted by adjusting the elongation of the support frame adjustment bolt. Through the transmission cooperation between multiple components, the structure of the device is compact, the volume is small, and the downward pressure of the scraper device can be adjusted, and the use process of the device is flexible.

[0071] Embodiment 4

[0072] As can be seen from the attached drawings, the difference between Embodiment 4 and Embodiment 3 lies in the second scraper 9-12. A sub-scraper 9-12-1 is further provided on one side of the second scraper 9-12. The sub-scraper 9-12-1 is attached to the side wall of the second scraper 9-12. The sub-scraper 9-12-1 and the second scraper 9-12 are fixedly connected by a scraper locking bolt 9-12-2 passing through the sub-scraper 9-12-1 and extending into the side wall of the second scraper 9-12.

[0073] Further, the bottom edge height of the sub-scraper 9-12-1 is slightly higher than the bottom edge height of the second scraper 9-12.

[0074] Structural principle of this embodiment:

[0075] When scraping the coating liquid in this embodiment, when the accumulated height of the coating liquid on the bottom coating surface is relatively high, the auxiliary scraper pushes the top coating liquid, pushes and extrudes the coating liquid to the bottom side of the auxiliary scraper, and facilitates it to slide into the bottom side of the second scraper.

[0076] Advantages of this embodiment:

[0077] In this embodiment, an auxiliary scraper is added on the side of the second scraper, which can scrape off the excess coating liquid on the bottom coating surface, prevent the coating liquid from accumulating, and make the coating process smoother.

Claims

1. A patch coater for laboratory use, characterized in that, It includes a base housing (1), an asbestos board (2), a heating board (3), a heat conducting board (4), a coating board (5), a scraper base (7), a driving mechanism (8), a heating device (6), a scraper linkage mechanism (9), a handle rotating block (10), and a handle (11); the base housing (1) is in a cuboid shape and is a hollow structure; one end of the upper surface of the base housing (1) is provided with a waste liquid storage box (1-1); one side of the base housing (1) is provided with a control panel (1-2), and a power switch is provided on one side of the base housing (1); the asbestos board (2) is covered and arranged on the top surface of the base housing (1); the heating board (3) is arranged on the upper surface of the asbestos board (2); the heat conducting board (4) is attached and arranged on the upper surface of the heating board (3); the coating board (5) is attached and arranged on the upper surface of the heat conducting board (4); the scraper base (7) is arranged on the upper surface of the base housing (1) and is perpendicular to the base housing (1), and a scraper connecting seat (7-1) is provided at the bottom end of the scraper base (7), and the scraper connecting seat (7-1) is fixedly connected to the scraper base (7); the driving mechanism (8) is arranged inside the base housing (1), and the driving mechanism (8) is in transmission with the scraper connecting seat (7-1) to realize that the scraper base (7) is slidably arranged with the base housing (1); the heating device (6) is arranged on the top surface of the coating board (5); the scraper linkage mechanism (9) is arranged between the two scraper bases (7), and the scraper linkage mechanism (9) is fixed to the two scraper bases (7); the handle rotating block (10) is arranged outside the scraper connecting seat (7-1), and one side of the handle rotating block (10) is rotatably arranged on the outer side wall of the scraper connecting seat (7-1) through a shaft; the handle (11) is arranged on one side of the scraper connecting seat (7-1), and both ends of the handle (11) are fixedly connected to one end of the two handle rotating blocks (10). One end of the base housing (1) is provided with a clamping mechanism (1-3), and the clamping mechanism (1-3) includes a clamping seat (1-3-1), a clamping block (1-3-2), and a locking bolt (1-3-3). The clamping seat (1-3-1) is arranged at one end of the base housing (1) and is fixedly connected to the base housing (1), and the cross section of the clamping seat (1-3-1) is in an "L" shape structure; the clamping block (1-3-2) is arranged on the upper surface of the clamping seat (1-3-1), and the clamping block (1-3-2) is attached and arranged on one side of the base housing (1); the locking bolt (1-3-3) penetrates through the side wall of the clamping seat (1-3-1), and the locking bolt (1-3-3) is threadedly fixed to the clamping seat (1-3-1) through a thread, and one end of the locking bolt (1-3-3) extends into the clamping block (1-3-2) and is rotatably arranged with the clamping block (1-3-2). The scraper linkage mechanism (9) includes a scraper support frame (9-7), a top connecting rod (9-8), a support frame adjusting bolt (9-9), a support frame spring (9-10), a support cross bar (9-11), a second scraper (9-12), a side adjusting bolt (9-13) and a middle adjusting bolt (9-14). The number of the scraper support frames (9-7) is two, which are symmetrically arranged on both sides of the scraper base (7); the top connecting rod (9-8) is horizontally arranged at the top of the scraper support frame (9-7), and the bottom ends on both sides of the top connecting rod (9-8) are vertically and fixedly connected to the top surfaces of the scraper support frames (9-7) on both sides; the support frame adjusting bolt (9-9) is arranged at the top of each scraper support frame (9-7) and is perpendicular to the scraper support frame (9-7). Each support frame adjusting bolt (9-9) penetrates through the scraper support frame (9-7), and the bottom end of the support frame adjusting bolt (9-9) extends into the top end of the scraper base (7) and is threadedly connected to the scraper base (7); the support frame spring (9-10) is arranged on the outer wall of the support frame adjusting bolt (9-9). The top end of the support frame spring (9-10) abuts against the top end of the support frame adjusting bolt (9-9), and the bottom end of the support frame spring (9-10) abuts against the top surface of the scraper connecting seat (7-1); the support cross bar (9-11) is arranged at the bottom ends of the scraper connecting seats (7-1) on both sides, and both ends of the support cross bar (9-11) are fixedly connected to the scraper connecting seats (7-1); the second scraper (9-12) is arranged on the bottom side of the support cross bar (9-11), and the second scraper (9-12) is arranged in the same direction as the support cross bar (9-11); the side adjusting bolts (9-13) are arranged at both ends on one side of the top connecting rod (9-8). Each side adjusting bolt (9-13) is fixed to the side wall of the top connecting rod (9-8). The bottom end of the side adjusting bolt (9-13) penetrates through the support cross bar (9-11) and extends into the top end of the second scraper (9-12) and is rotatably arranged; the middle adjusting bolt (9-14) is arranged in the middle of the upper surface of the support cross bar (9-11). The bottom end of the middle adjusting bolt (9-14) penetrates through the support cross bar (9-11) and extends into the top end of the second scraper (9-12) and is threadedly arranged; A sub-scraper (9-12-1) is further arranged on one side of the second scraper (9-12). The sub-scraper (9-12-1) is attached to the side wall of the second scraper (9-12). The sub-scraper (9-12-1) is fixedly connected to the second scraper (9-12) by a scraper locking bolt (9-12-2) penetrating through the sub-scraper (9-12-1) and extending into the side wall of the second scraper (9-12).

2. The patch coater for laboratory use according to claim 1, characterized in that, The coating plate (5) is made of marble material.

3. The patch coater for laboratory use according to claim 1, wherein, The driving mechanism (8) includes a stepping motor (8-1) and a lead screw (8-2). The stepping motor (8-1) is arranged at one end inside the base housing (1), and the lead screw (8-2) is arranged at the other end inside the base housing (1). One end of the lead screw (8-2) is connected to the stepping motor (8-1), and the stepping motor (8-1) drives the lead screw (8-2). Both ends of the lead screw (8-2) are rotatably arranged on both sides of the base housing (1) through bearings. The lead screw (8-2) penetrates through the scraper connecting seat (7-1), and the lead screw (8-2) is threadedly connected to the scraper connecting seat (7-1).

4. A patch coater for laboratory use according to claim 1, characterized in that, The heating device (6) is a lifting plate (6-1) and a heating lamp (6-2). The lifting plate (6-1) is arranged on one side of the scraper base (7). Both ends of the lifting plate (6-1) are vertically and fixedly arranged on the side edges of the scraper base (7). The heating lamp (6-2) is arranged on the bottom surface of the lifting plate (6-1), and the heating lamp (6-2) is fixed to the lifting plate (6-1) through fasteners.

5. The patch coater for laboratory use according to claim 1, wherein, The heating device (6) is a heating cover (6-3). The heating cover (6-3) is arranged on one side of the base housing (1). The heating cover (6-3) is rotatably arranged on the base housing (1) through a movable hinge. One side of the heating cover (6-3) is provided with a heating cover air inlet hole (6-3-1), and one side of the top end of the heating cover (6-3) is provided with an exhaust fan (6-3-2).

6. The patch coater for laboratory use according to claim 1, wherein The scraper linkage mechanism (9) is arranged between the two scraper bases (7). The scraper linkage mechanism (9) includes a scraper fixed slide plate (9-1), a scraper movable slide plate (9-2), a scraper sliding track (9-3), a scraper fixing piece (9-4) and a first scraper (9-5). The scraper fixed slide plate (9-1) is arranged between the two scraper bases (7), and both sides of the scraper fixed slide plate (9-1) are fixedly arranged on the fixed side walls of the scraper bases (7). The scraper movable slide plate (9-2) is arranged on one side surface of the scraper fixed slide plate (9-1). The scraper sliding track (9-3) is arranged between the scraper fixed slide plate (9-1) and the scraper movable slide plate (9-2). The scraper movable slide plate (9-2) is longitudinally slidably arranged on the scraper fixed slide plate (9-1) through the scraper sliding track (9-3). The scraper fixing piece (9-4) is arranged at the bottom edge of the scraper movable slide plate (9-2). The first scraper (9-5) is arranged at the bottom side of the scraper movable slide plate (9-2).

7. A patch coater for laboratory use according to claim 6, characterized in that, Knife edges (9-6) are arranged on both sides of the top end of the first scraper (9-5). The knife edges (9-6) are arranged in the same direction, and the side surface of each knife edge (9-6) is sloped. The two knife edges (9-6) are arranged at intervals.

Images