Laboratory coating glue scraping plate device

Abstract

The utility model provides a kind of laboratory coating glue scraping plate device belongs to mechanical technical field.It solves the problem of poor stability of prior art.This laboratory coating glue scraping plate device includes rack, further include transmission shaft, blade and elastic pre-tightening component, above-mentioned rack is flat and the number of rack is two, two racks are symmetrically arranged, above-mentioned transmission shaft is respectively connected in corresponding rack by being passed, above-mentioned blade is fixedly connected at transmission shaft lower part, above-mentioned elastic pre-tightening component is connected between transmission shaft and rack, above-mentioned blade has the tendency of going down under the action of elastic pre-tightening component.This laboratory coating glue scraping plate device has high stability.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a coating scraper device for laboratory use. Background Technology

[0002] In the textile coating industry, prototyping is essential. Prototyping equipment is generally used for formula verification, process parameter optimization, and sample preparation in laboratory or small-scale production stages. This equipment not only needs to simulate actual production conditions but also needs to be flexible, controllable, and easy to operate. Commonly used prototyping equipment in the textile coating field includes laboratory coating machines, such as blade coaters, bar coaters, and roller coaters. However, these machines are generally large, expensive, and inconvenient to carry and transport.

[0003] Currently, the most commonly used simple coating equipment in laboratories is the scraper blade that comes with a small setting machine. The method of use is to fix the textile fabric in place and then use the scraper blade to coat it.

[0004] This sampling equipment is low in cost and easy to operate, but its drawback is that the scraper is in rigid contact with the fabric, which makes the coating scraping operation difficult. In severe cases, the fabric may wrinkle and be damaged, resulting in poor stability. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a laboratory coating scraper device that is highly stable and has a compact structure.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A laboratory coating scraper device includes a frame, a drive shaft, a blade, and an elastic preload assembly. The frame is flat and there are two frames arranged symmetrically on the left and right. The two ends of the drive shaft are respectively connected to the corresponding frames. The blade is fixed to the lower part of the drive shaft. The elastic preload assembly is connected between the drive shaft and the frame. Under the action of the elastic preload assembly, the blade tends to point downward.

[0008] In the aforementioned laboratory coating scraper device, the elastic pre-tightening assembly includes a swing rod, a positioning rod, and a spring. The inner end of the positioning rod is connected to the frame. The two ends of the swing rod have a cylindrical connecting cylinder one and a cylindrical connecting cylinder two, respectively. The connecting cylinders are fitted onto the drive shaft and are fixed together by fasteners. The cylindrical connecting cylinder two is fitted onto the positioning rod. The two ends of the spring act on the positioning rod and the cylindrical connecting cylinder two, respectively. Under the elastic force of the spring, the drive shaft tends to swing so that the blades on it point downwards.

[0009] In the above-mentioned laboratory coating scraper device, a stop is connected to the frame, the inner end of the positioning rod is fixed to the stop, and the inner diameter of the connecting cylinder is larger than the outer diameter of the positioning rod.

[0010] In the above-mentioned laboratory coating scraper device, the positioning rod is threaded with an adjusting nut, and the two ends of the spring press against the adjusting nut and the connecting cylinder 2, respectively.

[0011] In the above-mentioned laboratory coating scraper device, the number of adjusting nuts is at least two, and several adjusting nuts are arranged closely adjacent to each other along the axial direction of the positioning rod.

[0012] In the aforementioned laboratory coating scraper device, the stop head includes a rod-shaped body and a flexible contact cylinder. The inner end of the body is fixedly connected to the frame, the contact cylinder is sleeved on the body, and the positioning rod passes through the contact cylinder with its inner end fixedly connected to the body.

[0013] In the aforementioned laboratory coating scraper device, the contact cylinder is made of rubber.

[0014] In the aforementioned laboratory coating scraper device, the contact cylinder is made of wood.

[0015] In the above-mentioned laboratory coating scraper device, the axis of the first connecting cylinder is perpendicular to the axis of the second connecting cylinder.

[0016] In the above-mentioned laboratory coating scraper device, the side of the drive shaft has a protruding connecting piece along its axial direction, the inner end of the blade has a positioning groove that matches the connecting piece, the connecting piece is embedded in the positioning groove, and the connecting piece and the inner end of the blade are fixedly connected by fasteners.

[0017] Compared with existing technologies, the coating scraper device used in this laboratory can appropriately buffer the scraper under the elastic force of the spring during the scraping operation, avoiding rigid contact between the scraper and the fabric, thus effectively improving its operational stability.

[0018] Meanwhile, the elastic preload assembly is centrally located between the frame and the drive shaft, and is far away from the scraper. Therefore, the entire device is not only compact in structure, but also further improves its stability, making it highly practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the coating scraper device used in this laboratory.

[0020] Figure 2 This is a schematic diagram of the elastic pre-tightening component in the coating scraper device used in this laboratory.

[0021] In the diagram, 1 is the frame; 2 is the drive shaft; 3 is the blade; 3a is the positioning groove; 4 is the swing arm; 4a is the connecting cylinder one; 4b is the connecting cylinder two; 5 is the positioning rod; 6 is the spring; 8 is the stop; 8a is the body; 8b is the contact cylinder; 9 is the adjusting nut; and 10 is the connecting piece. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2 As shown, the coating scraper device used in this laboratory includes a frame 1, a drive shaft 2, a blade 3, and an elastic pre-tightening assembly. The frame 1 is flat and there are two frames 1, which are arranged symmetrically on the left and right. The two ends of the drive shaft 2 are respectively connected to the corresponding frame 1. The blade 3 is fixed to the lower part of the drive shaft 2. The elastic pre-tightening assembly is connected between the drive shaft 2 and the frame 1. Under the action of the elastic pre-tightening assembly, the blade 3 has a downward tendency.

[0026] The elastic preload assembly includes a swing rod 4, a positioning rod 5, and a spring 6. The inner end of the positioning rod 5 is connected to the frame 1. The two ends of the swing rod 4 have a cylindrical connecting cylinder 4a and a cylindrical connecting cylinder 4b, respectively. The cylindrical connecting cylinder 4a is sleeved on the drive shaft 2 and the two are fixed together by fasteners. The cylindrical connecting cylinder 4b is sleeved on the positioning rod 5. The two ends of the spring 6 act on the positioning rod 5 and the cylindrical connecting cylinder 4b, respectively. Under the elastic force of the spring 6, the drive shaft 2 tends to swing so that the blade 3 on it faces downward.

[0027] Under the elastic force of spring 6, blade 3 always tends to be in a downward position, ensuring that blade 3 can stably participate in the coating scraping operation.

[0028] The swing arm 4 is located above the drive shaft 2, and the blade 3 is located below the drive shaft 2. Simultaneously, the blade 3 generates resistance when it comes into contact with the coating. When the blade 3 swings, the spring 6 is compressed. In other words, the spring 6 cushions the blade 3, preventing rigid contact between the blade 3 and the fabric, effectively improving operational stability.

[0029] Of course, the frame 1 is installed at the corresponding fabric placement device. As to how the frame and the corresponding placement device are connected, this is not a technical problem that this patent application needs to solve. Therefore, the specific technical solution will not be described in detail in the embodiments regarding this technical feature.

[0030] A stop head 8 is connected to the frame 1, and the inner end of the positioning rod 5 is fixed to the stop head 8. The inner diameter of the connecting cylinder 4b is larger than the outer diameter of the positioning rod 5.

[0031] The stop 8 and the spring 6 are located on both sides of the drive shaft 2, and the connecting sleeve 4b is sleeved on the positioning rod 5. This structure achieves stable limiting of one end of the swing rod 4, and the swing of the swing rod 4 can only be within the set stroke range.

[0032] The positioning rod 5 is threaded with an adjusting nut 9, and the two ends of the spring 6 press against the adjusting nut 9 and the connecting cylinder 4b respectively.

[0033] The elastic force of spring 6 can be changed by adjusting nut 9, thus making the whole device more versatile.

[0034] The number of adjusting nuts 9 is at least two, and several adjusting nuts 9 are arranged closely adjacent to each other along the axial direction of the positioning rod 5.

[0035] The use of multiple adjusting nuts 9 ensures the stability of the spring 6's positioning and effectively prevents the adjusting nuts 9 from loosening during operation.

[0036] The stop head 8 includes a rod-shaped body 8a and a flexible contact cylinder 8b. The inner end of the body 8a is fixed to the frame 1, the contact cylinder 8b is sleeved on the body 8a, and the positioning rod 5 passes through the contact cylinder 8b and the inner end of the positioning rod 5 is fixed to the body 8a.

[0037] The main body 8a is used to position the contact cylinder 8b. The contact cylinder 8b contacts the connecting cylinder 4b, which can prevent the swing arm 4 from rigidly touching and reduce noise.

[0038] The contact cylinder 8b is made of rubber. However, depending on the specific circumstances, it is also feasible to use wood as the contact cylinder 8b.

[0039] The axis of the connecting cylinder 4a is perpendicular to the axis of the connecting cylinder 4b.

[0040] The drive shaft 2 has a protruding connecting piece 10 on its side along its axial direction. The inner end of the blade 3 has a positioning groove 3a that matches the connecting piece 10. The connecting piece 10 is embedded in the positioning groove 3a and the connecting piece 10 and the inner end of the blade 3 are fixedly connected by fasteners.

[0041] This structure allows the blade 3 to be stably fixed to the side of the drive shaft 2.

[0042] The coated scraper device used in this laboratory effectively improves its operational stability by providing appropriate cushioning to the scraper blade under the elastic force of the spring during the scraping operation, thus avoiding rigid contact between the scraper blade and the fabric.

[0043] Meanwhile, the elastic preload assembly is centrally located between the frame and the drive shaft, and is far away from the scraper. Therefore, the entire device is not only compact in structure, but also further improves its stability, making it highly practical.

[0044] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A laboratory coating scraper device, comprising a frame, characterized in that, It also includes a drive shaft, a blade, and an elastic preload assembly. The frame is flat and there are two frames, which are arranged symmetrically on the left and right. The two ends of the drive shaft are respectively connected to the corresponding frames. The blade is fixed to the lower part of the drive shaft. The elastic preload assembly is connected between the drive shaft and the frame. Under the action of the elastic preload assembly, the blade tends to point downward.

2. The laboratory coating scraper device according to claim 1, characterized in that, The elastic preload assembly includes a swing arm, a positioning rod, and a spring. The inner end of the positioning rod is connected to the frame. The two ends of the swing arm have a cylindrical connecting cylinder one and a cylindrical connecting cylinder two, respectively. The connecting cylinders are fitted onto the drive shaft and the two are fixed together by fasteners. The cylindrical connecting cylinder two is fitted onto the positioning rod. The two ends of the spring act on the positioning rod and the cylindrical connecting cylinder two, respectively. Under the elastic force of the spring, the drive shaft tends to swing so that the blades on it face downwards.

3. The laboratory coating scraper device according to claim 2, characterized in that, A stop is connected to the frame, and the inner end of the positioning rod is fixed to the stop. The inner diameter of the connecting cylinder is larger than the outer diameter of the positioning rod.

4. The laboratory coating scraper device according to claim 3, characterized in that, An adjusting nut is threaded onto the positioning rod, and the two ends of the spring press against the adjusting nut and the connecting cylinder 2, respectively.

5. The laboratory coating scraper device according to claim 4, characterized in that, The number of adjusting nuts is at least two, and several adjusting nuts are arranged closely adjacent to each other along the axial direction of the positioning rod.

6. The laboratory coating scraper device according to claim 5, characterized in that, The stop head includes a rod-shaped body and a flexible contact cylinder. The inner end of the body is fixed to the frame, the contact cylinder is sleeved on the body, and the positioning rod passes through the contact cylinder with its inner end fixed to the body.

7. The laboratory coating scraper device according to claim 6, characterized in that, The contact cylinder is made of rubber.

8. The laboratory coating scraper device according to claim 6, characterized in that, The contact cylinder is made of wood.

9. The laboratory coating scraper device according to claim 8, characterized in that, The axis of the first connecting cylinder is perpendicular to the axis of the second connecting cylinder.

10. The laboratory coating scraper device according to claim 9, characterized in that, The drive shaft has a protruding connecting piece on its side along its axial direction. The inner end of the blade has a positioning groove that matches the connecting piece. The connecting piece is embedded in the positioning groove and the connecting piece is fixed to the inner end of the blade by fasteners.

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