A device for improving the quality of longitudinal cutting of semi-finished products

By installing a cover and oil reservoir outside the cutting wheel, combined with high-pressure airflow and lubricating oil nozzles, the problem of cutting wheel jamming caused by dust is solved, achieving higher cutting quality and neater cuts, and extending the service life of the cutting wheel.

CN119750898BActive Publication Date: 2026-01-06RAINBOW (HEFEI) LIQUID CRYSTAL GLASS CO LTD
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Patent Information

Application Number
CN202411888072.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-06
Estimated Expiration
2044-12-20

AI Technical Summary

Technical Problem

During the production of LCD glass substrates, dust generated during cutting and breaking can cause the cutting wheel to jam, reducing its lifespan and cutting quality, and affecting the production line's uptime.

Method used

Design a device that includes a cover and an oil reservoir, with the lower end of the cutter wheel in contact with lubricating oil. Combined with high-pressure airflow and lubricating oil nozzles, an air curtain and lubricating oil film are formed to reduce dust emissions and extend the life of the cutter wheel.

Benefits of technology

Improve cutting quality and cut neatness, reduce the probability of dust entering the cutter wheel bearing, extend the service life of the cutter wheel, and increase the production line utilization rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a device for improving the longitudinal cutting quality of semi-finished products, comprising: a cover and a cutting wheel; the cover has a receiving cavity and an oil storage chamber located below the receiving cavity, the receiving cavity has an opening on one side, the oil storage chamber communicates with the receiving cavity, and the oil storage chamber stores lubricating oil; the cutting wheel is installed in the receiving cavity, and a portion of it is exposed outside the receiving cavity through the opening to form a cutting surface, with its lower end in contact with the lubricating oil. This invention can effectively improve the cutting quality of products, ensure neat cuts, and at the same time reduce the probability of dust entering the cutting wheel bearing and causing the cutting wheel to jam, thus extending the service life of the cutting wheel.
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Description

Technical Field

[0001] This invention relates to the field of liquid crystal glass manufacturing technology, and more specifically to a device for improving the quality of longitudinal cutting of semi-finished products. Background Technology

[0002] The semi-finished product processing step is a crucial component of LCD glass substrate production. This step primarily involves the transverse segmentation, robot loading, weighing, longitudinal segmentation, cooling, thickness measurement, automatic inspection, manual sampling, sorting, and unloading of the glass after it flows from the muffle furnace. The process involves conveying, weighing, longitudinally segmenting, sorting, packaging, and feeding the formed, pulled-down glass sheets to the grinding mill. In actual production, the products frequently undergo longitudinal segmentation and breakage. Dust generated during these processes can enter the cutting rollers, causing them to jam and reducing their lifespan and cutting quality, while also impacting production line uptime. Summary of the Invention

[0003] In order to solve the technical problems existing in the background art, the present invention proposes a device for improving the longitudinal cutting quality of semi-finished products.

[0004] The present invention proposes a device for improving the longitudinal cutting quality of semi-finished products, comprising:

[0005] The cover has a receiving cavity and an oil storage chamber located below the receiving cavity. One side of the receiving cavity has an opening, and the oil storage chamber is connected to the receiving cavity. The oil storage chamber stores lubricating oil.

[0006] The cutting wheel is installed inside the receiving cavity, and a portion of it is exposed outside the receiving cavity through an opening to form a cutting surface. Its lower end is in contact with lubricating oil.

[0007] Preferably, the cover is provided with a main nozzle located above the opening. The main nozzle is connected to an air compressor through a pipeline so that the air compressor can deliver high-pressure airflow to it, and the airflow ejected by the main nozzle is directed toward the opening to form an air curtain at the opening.

[0008] Preferably, a secondary nozzle is also provided above the opening of the cover. The pipeline connecting the main nozzle and the air compressor is divided into two paths, one of which is connected to the main nozzle and the other to the secondary nozzle. The airflow ejected by the secondary nozzle is directed toward the cutting surface.

[0009] Preferably, the lubricating oil contains volatile substances.

[0010] Preferably, the cutting wheel has oil-holding grooves on one or both sides.

[0011] Preferably, a regulating valve for controlling the on / off state and adjusting the flow rate is installed in the pipeline connecting the main nozzle and the air compressor.

[0012] Preferably, it also includes an oil storage container for storing lubricating oil, the oil storage container being connected to the oil storage chamber via a pumping pipeline.

[0013] Preferably, the receiving cavity is provided with a nozzle facing the cutting wheel, and the pumping pipeline is divided into two paths, one of which is connected to the oil storage chamber and the other is connected to the nozzle.

[0014] Preferably, the nozzle is located on the top and / or side of the cutter wheel.

[0015] Preferably, a regulating valve is installed in the pumping pipeline to control its on / off state and adjust the flow rate.

[0016] Preferably, it also includes a transfer container, an oil supply pipeline connecting the transfer container and the oil storage chamber for supplying oil from the transfer container to the oil storage chamber, and an oil return pipeline connecting the transfer container and the oil storage chamber for supplying oil from the oil storage chamber to the transfer container, and a cooler is installed in the oil return pipeline.

[0017] Preferably, a filter is provided in the oil return line and on the front side of the cooler oil inlet.

[0018] In this invention, a cover is provided outside the cutting wheel, and an oil reservoir is provided inside the cover to store lubricating oil. The lower part of the cutting wheel is in contact with the lubricating oil, so that when the cutting wheel performs the cutting operation, its cutting part is continuously immersed in the lubricating oil, which carries the lubricating oil to the cutting part. This design can form lubrication at the point where the cutting wheel contacts the glass during the cutting process, thereby improving the cutting quality of the product and ensuring a neat cut. At the same time, the lubricating oil wrapped around the cutting part can reduce the degree of dust generated during cutting, thereby reducing the probability of dust entering the cutting wheel bearing and causing the cutting wheel to jam, and extending the service life of the cutting wheel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a device for improving the longitudinal cutting quality of semi-finished products according to the present invention;

[0020] Figure 2 This is a schematic diagram of the lubricating oil delivery line in an apparatus for improving the longitudinal cutting quality of semi-finished products proposed in this invention. Detailed Implementation

[0021] Reference Figure 1 The present invention proposes a device for improving the longitudinal cutting quality of semi-finished products, comprising: a cover 1 and a cutting wheel 2, wherein:

[0022] The housing 1 has a receiving cavity 1a and an oil storage chamber 1b located below the receiving cavity 1a. The receiving cavity 1a has an opening on one side, and the oil storage chamber 1b communicates with the receiving cavity 1a. The oil storage chamber 1b stores lubricating oil. The cutting wheel 2 is installed in the receiving cavity 1a, and a portion of it passes through the opening of the receiving cavity 1a and is exposed to the outside of the receiving cavity 1a to form a cutting surface. Its lower end contacts the lubricating oil, so that when the cutting wheel 2 rotates, it continuously passes through the lubricating oil and carries the lubricating oil into the cutting area. This not only improves the neatness of the cut, but also reduces the degree of dust generated during cutting, thereby reducing the probability of dust entering the bearing of the cutting wheel 2 and causing the cutting wheel 2 to jam.

[0023] In addition, in this embodiment, a main nozzle 3 is provided at the position above the opening of the cover 1. The main nozzle 3 is connected to an air compressor through a pipeline so that the air compressor can deliver high-pressure airflow to it. The airflow sprayed by the main nozzle 3 is directed toward the opening to form an air curtain at the opening. The air curtain blocks external dust from entering the receiving cavity 1a and makes the interior of the receiving cavity a relatively independent space environment so that the transmission part of the cutter wheel 2 installed inside it does not come into contact with the outside.

[0024] Furthermore, a secondary nozzle 4 is also provided above the opening in the cover 1. The pipeline connecting the main nozzle 3 and the air compressor has two branches, one connected to the main nozzle 3 and the other to the secondary nozzle 4. The airflow ejected from the secondary nozzle 4 is directed towards the cutting surface. This not only cools the cutting area but also prevents the cutting wheel 2 from carrying dust into the receiving cavity 1a. Simultaneously, it accelerates the evaporation of the lubricating oil, thereby improving the cooling effect on the cutting wheel 2. To further enhance the cooling effect of the lubricating oil on the cutting wheel 2, the lubricating oil used in this embodiment contains harmless volatile substances.

[0025] Furthermore, the cutter wheel 2 has oil-coating grooves 2a on one or both sides to increase the amount of oil coated on the surface of the cutter wheel 2.

[0026] In addition, a regulating valve is installed in the pipeline connecting the main nozzle 3 and the air compressor to control the on / off state and adjust the flow rate. During operation, the airflow is controlled by the regulating valve to control the on / off state and adjust the airflow rate.

[0027] Reference Figure 2 The present invention proposes a device for improving the longitudinal cutting quality of semi-finished products, which further includes an oil storage container 5 for storing lubricating oil. The oil storage container 5 is connected to the oil storage chamber 1b via a pumping pipeline. During the cutting operation, when the amount of oil stored in the oil storage chamber is insufficient, lubricating oil is added to it through the oil storage container 5 to ensure that the liquid level in the oil storage chamber 1b is always kept in contact with the bottom of the cutting wheel 2.

[0028] Furthermore, the receiving cavity 1a is equipped with a nozzle 6 facing the cutting wheel 2. Specifically, the nozzle 6 can be located on the top and / or side of the cutting wheel 2. The pumping pipeline has two branches, one of which is connected to the oil storage chamber 1b, and the other is connected to the nozzle 6. During operation, lubricating oil is sprayed onto the cutting wheel 2 through the nozzle 6, which helps to cool the cutting wheel 2 quickly and ensures that the cutting parts are adequately lubricated.

[0029] Furthermore, a regulating valve is installed in the pumping pipeline to control its on / off state and adjust the flow rate. During operation, the regulating valve controls the on / off state of the pumping pipeline and adjusts the pumping volume.

[0030] The present invention proposes a device for improving the longitudinal cutting quality of semi-finished products, which further includes a transfer container 7, an oil supply pipeline connecting the transfer container 7 and the oil storage chamber 1b for supplying oil from the transfer container 7 to the oil storage chamber 1b, and an oil return pipeline connecting the transfer container 7 and the oil storage chamber 1b for supplying oil from the oil storage chamber 1b to the transfer container 7. A cooler 8 is installed in the oil return pipeline. During operation, the lubricating oil in the oil storage chamber 1b is circulated by the transfer container 7, the oil supply pipeline and the oil return pipeline, and the lubricating oil is cooled during the circulation process to ensure that the lubricating oil entering the oil storage chamber 1b is in a low temperature state, so as to use the low temperature lubricating oil to cool the cutting wheel 2.

[0031] Furthermore, a filter 9 is provided in the oil return line and on the front side of the oil inlet of the cooler 8, so as to filter impurities in the lubricating oil.

[0032] As can be seen from the above, the present invention provides a cover 1 outside the cutting wheel 2 and an oil storage chamber 1b inside the cover 1. The oil storage chamber 1b stores lubricating oil and the lower part of the cutting wheel 2 is in contact with the lubricating oil. When the cutting wheel 2 performs the cutting operation, its cutting part is continuously immersed in the lubricating oil and the lubricating oil is carried to the cutting part. This design can form lubrication at the part of the cutting wheel 2 that contacts the glass during the cutting process, thereby improving the neatness of the cut. At the same time, the lubricating oil wrapped around the cutting part can reduce the degree of dust generated during cutting, thereby reducing the probability of dust entering the bearing of the cutting wheel 2 and causing the cutting wheel 2 to jam.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for improving the quality of the longitudinal cut of a semi-finished product, characterized in that, The utility model relates to a cutting device for cutting machine, which comprises: a cover (1) having a containing cavity (1a) and an oil storage chamber (1b) below the containing cavity (1a), the containing cavity (1a) has an opening on one side, the oil storage chamber (1b) is communicated with the containing cavity (1a), and lubricating oil is stored in the oil storage chamber (1b); a main nozzle (3) is arranged above the opening of the cover (1), the main nozzle (3) is connected with an air compressor through a pipeline to deliver high-pressure airflow from the air compressor to the main nozzle (3), and the airflow sprayed by the main nozzle (3) is directed towards the opening to form an air curtain at the opening; a secondary nozzle (4) is arranged above the opening of the cover (1), the pipeline connecting the main nozzle (3) and the air compressor is divided into two branches, one branch is connected with the main nozzle (3), and the other branch is connected with the secondary nozzle (4), and the airflow sprayed by the secondary nozzle (4) is directed towards the cutting surface; a cutter wheel (2) is installed in the containing cavity (1a), and a part of the cutter wheel (2) is exposed outside the containing cavity (1a) through the opening of the containing cavity (1a) to form a cutting surface, and the lower end of the cutter wheel (2) contacts the lubricating oil.

2. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 1, characterized in that, An adjusting valve is arranged in the pipeline connecting the main nozzle (3) and the air compressor to control the on-off state and adjust the flow rate.

3. The device for improving the quality of the longitudinal cutting of a semi-finished product according to claim 1, characterized in that, The lubricating oil contains volatile substances.

4. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 1, characterized in that, An oil hanging groove (2a) is arranged on one side or both sides of the cutter wheel (2).

5. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 1, characterized in that, An oil storage container (5) is further arranged to store lubricating oil, and the oil storage container (5) is connected with the oil storage chamber (1b) through a pumping pipeline.

6. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 5, characterized in that, A nozzle (6) is arranged in the containing cavity (1a) and directed towards the cutter wheel (2), and the pumping pipeline is divided into two branches, one branch is connected with the oil storage chamber (1b), and the other branch is connected with the nozzle (6).

7. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 6, characterized in that, The nozzle (6) is arranged on the top and / or side of the cutter wheel (2).

8. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 5, characterized in that, An adjusting valve is arranged in the pumping pipeline to control the on-off state and adjust the flow rate.

9. The device for improving the quality of the longitudinal cut of a semi-finished product according to any one of claims 1-8, characterized in that, A transfer container (7) is further arranged, and a supply pipeline and a return pipeline are arranged to connect the transfer container (7) and the oil storage chamber (1b), the supply pipeline is used to deliver oil from the transfer container (7) to the oil storage chamber (1b), and the return pipeline is used to deliver oil from the oil storage chamber (1b) to the transfer container (7), and a cooler (8) is arranged in the return pipeline.

10. The device for improving the quality of the longitudinal cut of a semi-finished product according to claim 9, characterized in that, A filter (9) is arranged in the return pipeline and located on the front side of the inlet end of the cooler (8).

Citation Information

Patent Citations

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