Device for detecting granularity

Abstract

The utility model relates to the technical field of granularity detection of resin particles, in particular to a device for granularity detection, which comprises a counting plate, a plurality of first grooves are arranged on the upper end face of the counting plate, each first groove can only accommodate one particle, a second groove is arranged on the lower end face of the counting plate, and each second groove can only accommodate one particle. A second groove is formed in the upper end face of the counting plate, a material pushing plate in sliding fit with the second groove is arranged in the second groove, a plurality of material pushing columns are arranged on the upper end face of the material pushing plate and correspond to through holes formed in the bottoms of the first grooves, a plurality of limiting blocks are arranged on the lower end face of the counting plate around the second groove, and the limiting blocks are used for limiting the material pushing plate in the second groove. The problems that according to a manual counting method, the detection time is long, the detection efficiency is low, different detection personnel frequently count again, and the random error of the detection result is large can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of particle size detection of resin particles, in particular to a device for particle size detection. Background Art

[0002] The general product of copolymer acetal resin (POM for short) is a milky white granular product. It is a high molecular polymer obtained by polymerization of trioxymethylene and dioxolane under the action of a catalyst, and is added with specific additives. Polyoxymethylene products are excellent engineering plastics, known as "steel" and "super steel". They have metal-like hardness, strength and rigidity, and have good self-lubrication, fatigue resistance, chemical resistance and elasticity in a wide range of temperature and humidity. It is now widely used in electronics, machinery, instrumentation, daily light industry, automobiles, building materials, agriculture and other fields. It also shows a good growth trend in many new fields of application, such as medical technology and sports equipment.

[0003] At present, the particle size detection of copolymer formaldehyde resin products usually adopts the manual counting method. This method is to obtain the number of particles contained in the copolymer formaldehyde resin product per unit mass by weighing and manual counting. The particle size is an important indicator to characterize the uniformity of the size of copolymer formaldehyde resin particles. The particle size of copolymer formaldehyde resin products is a factory inspection item in the Q / YTH 004-2022 standard, and its index range is controlled at 30 to 70 particles / g. When the prior art performs particle size detection, a balance is used to accurately weigh a certain mass of copolymer formaldehyde resin product particles, and then the number of particles of the copolymer formaldehyde resin product contained in a certain mass is obtained by manual counting, and the particle size result in units of particles / g is obtained by calculation. However, this manual counting method of the prior art has a long detection time and low detection efficiency. Different detection personnel often have to count again, and the random error of the detection result is large. Utility Model Content

[0004] The utility model provides a device for particle size detection, which can solve the problems of manual counting method, long detection time, low detection efficiency, different detection personnel often re-counting, and large random errors in detection results.

[0005] The present application provides the following technical solution: a device for particle size detection, comprising a counting plate, wherein the upper end surface of the counting plate is provided with a plurality of first grooves, each of which can only accommodate one particle, the lower end surface of the counting plate is provided with a second groove, the second groove is provided with a push plate that slides with the second groove, the upper end surface of the push plate is provided with a plurality of push posts, each push post corresponds to a through hole provided at the bottom of each first groove, the lower end surface of the counting plate is provided with a plurality of limit blocks around the second groove, and the limit blocks are used to limit the push plate in the second groove.

[0006] Beneficial effect: By setting a specified number of first grooves on the counting plate, each first groove can only accommodate one particle, and after all the first grooves are filled, the specified number of particles can be obtained. During the counting process, because the resin particles that need to be tested for particle size are usually irregular in shape, the particles are easily stuck in the first grooves after entering the first grooves, making it difficult for the particles to escape. The technical solution sets a push plate under the counting plate, and the push column of the push plate pushes the particles out of the first grooves, thereby preventing the particles from being stuck in the first grooves, ensuring that the specified number of particles can be obtained quickly and conveniently, and then facilitating subsequent particle size detection.

[0007] Furthermore, the plurality of first grooves on the upper end surface of the counting plate are distributed in a matrix shape, the upper portion of the first groove is a cylindrical hole, and the lower portion is a hemispherical groove.

[0008] Beneficial effects: The processing difficulty of the first groove is reduced, the particles of different shapes and sizes can be adapted, and the functionality and efficiency of the counting plate are improved.

[0009] Furthermore, a guide column is provided on the upper end surface of the push plate, and the guide column is slidably matched with a guide hole provided on the counting plate. A compression spring is sleeved on the guide column, and one end of the compression spring is limited to the push plate, and the other end is limited to the counting plate.

[0010] Beneficial effect: Through the sliding cooperation between the guide column and the guide hole, the push column can accurately push the particles in the first groove out of the first groove through the through hole, ensuring that the specified number of particles is obtained conveniently and accurately. The push plate is automatically reset by compressing the spring, saving time and effort and improving counting efficiency.

[0011] Furthermore, the limit block is rotatably arranged on the lower end surface of the counting board.

[0012] Beneficial effect: The push plate can be disassembled and assembled by rotating the limit block, which is simple to operate, saves time and effort, and improves loading and unloading efficiency.

[0013] Furthermore, a guide groove is provided on the upper end surface of the counting plate, and the first groove is located at the bottom of the guide groove.

[0014] Beneficial effect: The guide groove provides effective guidance for the particles, prevents the particles from falling, and improves the collection efficiency of the particles.

[0015] Furthermore, the upper end surface of the counting plate is provided with 140 to 200 first grooves.

[0016] Beneficial effect: The number of first grooves on the counting plate can be adjusted according to actual needs to meet the needs of particle size detection. 140 to 200 first grooves are easy to process and also convenient for operators to observe whether the first grooves are filled with particles.

[0017] Furthermore, the device for particle size detection is made of organic glass.

[0018] Beneficial effects: Organic glass has good transparency, allowing operators to clearly observe the particles inside the device. The surface of organic glass is smooth and flat, and it is not easy to adhere to particles or dirt, and it is easy to clean. Compared with other materials, organic glass has a lighter weight, making the device easier to carry and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of a first embodiment of a device for particle size detection according to the utility model;

[0020] Figure 2 for Figure 1 AA section view;

[0021] Figure 3 It is a rear view of the first embodiment of the utility model device for particle size detection;

[0022] Figure 4 It is a front view of a second embodiment of a device for particle size detection according to the utility model;

[0023] Figure 5 for Figure 4 BB section view. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The symbols in the drawings of the specification include: a counting plate 1, a first groove 2, a second groove 3, a pushing plate 4, a pushing column 5, a guide column 6, a limit block 7, and a guide groove 8.

[0026] Embodiment 1

[0027] like Figures 1 to 3As shown, a device for particle size detection includes a counting plate 1, and the upper end surface of the counting plate 1 is provided with a plurality of first grooves 2, each of which can only accommodate one particle. The plurality of first grooves 2 are distributed in a matrix shape, and the upper part of the first groove 2 is a cylindrical hole, and the lower part is a hemispherical groove. The lower end surface of the counting plate 1 is provided with a second groove 3, and the second groove 3 is provided with a push plate 4 that slides with the second groove 3, and the upper end surface of the push plate 4 is provided with a plurality of push posts 5, each push post 5 corresponds to a through hole provided at the bottom of each first groove 2, and the diameter of the push post 5 is smaller than the diameter of the through hole, and the push post 5 slides with the through hole and can be inserted into the first groove 2. At least two guide posts 6 are provided on the upper end surface of the push plate 4, and each guide post 6 slides with each guide hole provided on the counting plate 1, and a compression spring is sleeved on the guide post 6, and one end of the compression spring is limited to the push plate 4, and the other end is limited to the counting plate 1. The lower end surface of the counting plate 1 is provided with a plurality of rotatable limit blocks 7 around the second groove 3, the number of the limit blocks 7 is adjusted according to the actual situation, and the limit blocks 7 are used to limit the push plate 4 in the second groove 3. The limit blocks 7 are installed on the lower end surface of the counting plate 1 by bolts or rivets, and the limit blocks 7 can rotate with the bolts or rivets as fulcrums.

[0028] The device for particle size detection is made of organic glass, the counting board 1 is rectangular, the upper end surface is square, the side length L of the square is 10 cm, and the thickness H of the counting board 1 is 1 cm. The upper end surface of the counting board 1 is provided with 140 first grooves 2, and the 140 first grooves 2 are distributed in a matrix in the middle of the counting board 1. The distance K between the edge of the counting board 1 and the nearest first groove 2 is 20 cm, the diameter D of the first groove 2 is 4 mm, the distance T between the centers of two adjacent first grooves 2 is 5 mm, and the groove depth N of the first groove 2 is 3 mm.

[0029] The method of use is as follows: take 5 kg of POM particles, mix them evenly, place the device for particle size detection in the POM particles, make the upper end of the counting plate 1 face upward, and fill all the first grooves 2 with POM particles. During the filling process, the device can be properly shaken to accelerate the entry of POM particles into the first groove 2, remove the excess POM particles on the upper end of the counting plate 1, move the device to the top of a container such as a beaker for collecting POM particles, make the upper end of the counting plate 1 face downward, and allow the POM particles to enter the beaker under the action of gravity. If POM particles are stuck in the first groove 2 and cannot fall, a force can be applied to the push plate 4 so that the stacking column of the push plate 4 passes through and is inserted into the first groove 2, and the POM particles in the first groove 2 are pushed out, and at the same time, the compression spring sleeved on the guide column 6 is compressed. After the push plate 4 pushes out the POM particles, it is reset under the action of compression. A specific number of POM particles are obtained in the beaker, and the particle size of the POM particles is obtained after weighing and other operations.

[0030] Embodiment 2

[0031] like Figures 4 to 5 As shown, a device for particle size detection includes a counting plate 1, the upper end surface of the counting plate 1 is provided with a guide groove 8, the bottom of the guide groove 8 is provided with a plurality of first grooves 2, each first groove 2 can only accommodate one particle, the lower end surface of the counting plate 1 is provided with a second groove 3, the second groove 3 is provided with a push plate 4 that slides with the second groove 3, the upper end surface of the push plate 4 is provided with a plurality of push posts 5, each push post 5 corresponds to a through hole provided at the bottom of each first groove 2, the lower end surface of the counting plate 1 is provided with a plurality of limit blocks 7 around the second groove 3, and the limit blocks 7 are used to limit the push plate 4 in the second groove 3.

[0032] The method of use is as follows: take 5 kg of POM particles, mix them evenly, place the device for particle size detection in the POM particles, make the upper end face of the counting plate 1 face upward, make the POM particles fill all the first grooves 2, shake the device appropriately during the filling process to accelerate the POM particles to enter the first grooves 2, remove the excess POM particles on the upper end face of the counting plate 1, move the device to the top of the container for collecting POM particles such as a beaker, make the notch opened on one side of the guide groove 8 of the upper end face of the counting plate 1 correspond to the container mouth, tilt the counting plate 1 so that the notch is located at the bottom, apply force to the push plate 4, make the stacking column of the push plate 4 pass through the through hole and insert into the first groove 2, push out the POM particles in the first groove 2, and the pushed out POM particles slide along the guide groove 8 under the action of gravity, fall into the beaker through the notch, remove the force applied to the push plate 4, and the push plate 4 is reset under the action of gravity. A specific number of POM particles are obtained in the beaker, and the particle size of the POM particles is obtained after weighing and other operations.

[0033] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A device for particle size detection, characterized in that: It includes a counting plate, the upper end surface of the counting plate is provided with a plurality of first grooves, each of which can only accommodate one particle, the lower end surface of the counting plate is provided with a second groove, the second groove is provided with a push plate that slides with the second groove, the upper end surface of the push plate is provided with a plurality of push posts, each push post corresponds to a through hole provided at the bottom of each first groove, the lower end surface of the counting plate is provided with a plurality of limit blocks around the second groove, and the limit blocks are used to limit the push plate in the second groove.

2. The device for particle size detection according to claim 1, characterized in that: The plurality of first grooves on the upper end surface of the counting plate are distributed in a matrix shape, the upper portion of the first groove is a cylindrical hole, and the lower portion is a hemispherical groove.

3. A device for particle size detection according to claim 2, characterized in that: The upper end surface of the push plate is provided with a guide column, and the guide column is slidably matched with the guide hole provided on the counting plate. A compression spring is sleeved on the guide column, and one end of the compression spring is limited to the push plate, and the other end is limited to the counting plate.

4. The device for particle size detection according to claim 3, characterized in that: The limit block is rotatably arranged on the lower end surface of the counting plate.

5. The device for particle size detection according to claim 1, characterized in that: The upper end surface of the counting plate is provided with a guide groove, and the first groove is located at the bottom of the guide groove.

6. The device for particle size detection according to claim 1, characterized in that: The upper end surface of the counting plate is provided with 140 to 200 first grooves.

7. The device for particle size detection according to claim 1, characterized in that: The device for particle size detection is made of organic glass.

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