Protection structure for charge level indicator of charging machine

Abstract

The utility model discloses a charging machine level gage protection structure, which belongs to the field of liquid crystal glass substrate production, and avoids the phenomena of error detection or no detection, empty bin formation or overflow of batch from a small bin due to the fact that batch directly impacts an upper level gage vibration rod by adding a protection cross rod of the level gage vibration rod. The charging machine mainly comprises a charging machine small stock bin, an upper level gage is arranged on the side wall of the charging machine small stock bin, a protective cross rod is arranged at a feeding port of the charging machine small stock bin through a clamp, the protective cross rod is located over an upper level gage vibration rod of the upper level gage, and the upper level gage vibration rod is located in the charging machine small stock bin. The protection device is mainly used for protecting the material level indicator of the charging machine during production of liquid crystal glass substrates.

Description

Technical Field

[0001] The utility model relates to the field of liquid crystal glass substrate production, in particular to a material level meter protection structure of a feeder. Background Art

[0002] In the production of liquid crystal glass substrates, extremely high temperatures are required to melt the batch materials. In order to reduce the heat loss of the pool furnace, a screw feeder is selected for feeding. Another outstanding advantage of the screw feeder is that it can monitor the weight and volume density of the batch materials by weighing the batch materials and setting upper and lower material level meters, thereby achieving precise control of the feeding amount.

[0003] At present, both the upper and lower material level meters adopt vibration type. The batch material enters the small silo through free fall through the first-level feeder. The vibrating rod of the upper material level meter will be constantly worn after being impacted by the batch material for a long time, resulting in false detection or no detection. On the one hand, it causes the first-level feeder not to discharge material or the discharge is uncontrolled. During the continuous feeding process of the second-level feeder, the small silo will form an empty silo or the batch material will overflow, which will cause the change of the stacking density and the unstable feeding amount. It will also cause the screw rod of the feeder to be damaged by high temperature without the wrapping of the batch material. On the other hand, after the false detection, the feeding system detects two conflicting signals, resulting in a crash, which brings safety hazards to production; at the same time, it also directly reduces the service life of the material level meter.

[0004] The unstable process state and damage to production equipment caused by the above reasons have a great impact on continuous production. Therefore, the protection of the vibration rod of the level meter is particularly important, which is of great significance to the stable and continuous production of liquid crystal glass substrates.

[0005] However, in the current production of liquid crystal glass substrates, no protection is provided for the vibrating rod of the level meter, and the above-mentioned problems often occur in the production process. Emergency operations and direct replacement of the level meter are often used to deal with such accidents, which fails to fundamentally avoid damage to the vibrating rod of the level meter. Therefore, it is necessary to take protective measures for the vibrating rod of the level meter. Utility Model Content

[0006] The purpose of the utility model is to provide a protective structure for a level meter of a feeder, which prevents the batch material from directly impacting the upper level meter vibrating rod by adding a protective cross bar of the level meter vibrating rod, thereby causing false detection or no detection, resulting in an empty bin or overflow of the batch material from a small bin.

[0007] The utility model is realized by the following technical solutions:

[0008] A feeder level meter protection structure comprises a small feeder bin, an upper level meter is arranged on the side wall of the small feeder bin, a protective cross bar is arranged at the feed inlet of the small feeder bin through a clamp, the protective cross bar is located directly above the upper level meter vibrating rod of the upper level meter, and the upper level meter vibrating rod is located in the small feeder bin.

[0009] Furthermore, the fixture is an L-shaped mounting block, one side of the L-shaped mounting block is connected to the protective cross bar, and the other side of the L-shaped mounting block is fixedly mounted on the side wall at the feed port of the small silo of the feeder.

[0010] Furthermore, one side of the L-shaped mounting block is welded to the protective cross bar, and the other side of the L-shaped mounting block is fixed to the side wall at the feed port of the small silo of the feeder by fastening bolts.

[0011] Furthermore, the L-shaped mounting block and the fastening bolts are both made of wear-resistant stainless steel.

[0012] Furthermore, the cross section of the protective cross bar is semicircular.

[0013] Furthermore, the cross-sectional diameter of the protective cross bar is larger than the diameter of the vibrating rod of the upper material level meter.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. With the extension of the service life, the vibrating rod of the material level meter is constantly worn. By adding a protective cross bar to the vibrating rod of the material level meter, the batch material is prevented from directly impacting the vibrating rod of the upper material level meter, thereby causing false detection or non-detection, resulting in empty bins or overflow of batch material from small bins; at the same time, it also avoids the feeding system detecting two conflicting signals, resulting in a crash, which brings potential safety hazards to production.

[0016] 2. Further stabilize the bulk density of the batch material, strengthen the stability of the feeding amount, avoid high temperature damage to the screw rod of the feeder; eliminate the risk of the feeding system crashing; and increase the service life of the level meter, which is of great significance to the stable and continuous production of liquid crystal glass substrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the protective cross bar of the utility model.

[0019] In the figure: 1. Small material bin of feeder; 2. Water cooling jacket of feeder; 3. Upper material level meter, 4. Lower material level meter; 5. Vibrating rod of upper material level meter; 6. Protective cross bar; 7. Clamp. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Example 1

[0022] like Figure 1 As shown, a protective structure of a feeder level meter comprises a small feeder bin 1 and a feeder water cooling jacket 2, the small feeder bin 1 and the feeder water cooling jacket 2 are connected, an upper level meter 3 and a lower level meter 4 are respectively provided on the side walls of the small feeder bin 1, a protective cross bar 6 is provided at the feed inlet of the small feeder bin 1 through a clamp 7, the protective cross bar 6 is located directly above the upper level meter vibrating rod 5 of the upper level meter 3 and the lower level meter vibrating rod of the lower level meter 4, and both the upper level meter vibrating rod 5 and the lower level meter vibrating rod are located in the small feeder bin 1.

[0023] Example 2

[0024] like Figure 2 As shown, a protective structure for a feeder level meter is provided, wherein the fixture 7 is an L-shaped mounting block, one side of the L-shaped mounting block is welded to the protective cross bar 6, and the other side of the L-shaped mounting block is fixed to the side wall at the feed port of the small feed bin 1 of the feeder by fastening bolts, so as to facilitate the disassembly and replacement of the fixture 7; the material of the L-shaped mounting block and the fastening bolts are both wear-resistant stainless steel; the cross section of the protective cross bar 6 is semicircular; the cross-sectional diameter of the protective cross bar 6 is slightly larger than the diameter of the upper level meter vibrating rod 5, and the rest is the same as Example 1.

[0025] The batch material of the liquid crystal glass substrate enters the small material bin 1 of the feeder through free fall of the first-level feeder. The upper material level meter vibrating rod 5 is protected by the protective cross bar 6, which prevents the upper material level meter vibrating rod 5 from being impacted by the batch material, thereby causing false detection or no detection, and further causing the small material bin 1 of the feeder to become empty or the batch material to overflow, changing the stacking density of the batch material in the small material bin 1 of the feeder, causing the feeding amount to change, and also avoiding high-temperature damage to the screw rod of the feeder.

[0026] The upper level meter 3 avoids false detection or non-detection, and can eliminate the situation where the feeding system detects two conflicting signals, which causes a crash. This increases the service life of the level meter and is beneficial to the stable and continuous production of liquid crystal glass substrates.

Claims

1. A material level meter protection structure for a feeder, comprising a small material bin (1) for the feeder, characterized in that: An upper material level meter (3) is provided on the side wall of the small material bin (1) of the feeder, and a protective cross bar (6) is provided at the feed inlet of the small material bin (1) of the feeder via a clamp (7). The protective cross bar (6) is located directly above an upper material level meter vibrating rod (5) of the upper material level meter (3), and the upper material level meter vibrating rod (5) is located in the small material bin (1) of the feeder.

2. The protective structure for the level meter of the feeder according to claim 1 is characterized in that: The fixture (7) is an L-shaped mounting block, one side of which is connected to the protective cross bar (6), and the other side of which is fixedly mounted on the side wall of the feed inlet of the small feed bin (1) of the feeder.

3. The protective structure for the level meter of the feeder according to claim 2 is characterized in that: One side of the L-shaped mounting block is welded to the protective cross bar (6), and the other side of the L-shaped mounting block is fixed to the side wall of the feed inlet of the small feed bin (1) of the feeder by means of fastening bolts.

4. The protective structure for the material level meter of the feeder according to claim 3 is characterized in that: The L-shaped mounting block and the fastening bolts are both made of wear-resistant stainless steel.

5. The protective structure for the material level meter of the feeder according to claim 1 is characterized in that: The cross section of the protective cross bar (6) is semicircular.

6. The protective structure for the material level meter of the feeder according to claim 5, characterized in that: The cross-sectional diameter of the protective cross bar (6) is greater than the diameter of the upper material level meter vibrating rod (5).

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