Automatic feeding device for electronic display glass production

Abstract

The utility model discloses an automatic feeding device for electronic display glass production belongs to electronic display glass manufacturing technical field, is used for the automatic feeding device of electronic display glass production, including the bunker, the inside fixed mounting of bunker has support frame, the top of support frame is provided with gravity induction assembly, the top of gravity induction assembly is provided with the tank, the inside fixed mounting of bunker in the lower position one side has infrared emitter, the inside fixed mounting of bunker in the lower position other side has infrared receiver, the outside fixed of bunker is provided with two dust removal machine, and the suction pipe of dust removal machine is penetrated to the inside of bunker and fixed. It can eliminate the instantaneous pressure fluctuation and the feeding screw out -of -control risk caused by artificial operation not in time or negligence, reduces material waste and the pollution to working environment, improves production efficiency, guarantees personnel health, alleviates the burden of environmental cleaning.

Description

Technical Field

[0001] This utility model relates to the field of electronic display glass manufacturing technology, and more specifically, to an automatic feeding device for the production of electronic display glass. Background Technology

[0002] In the production process of electronic display glass, the stable and precise feeding of the mixture into the kiln is crucial. Current technology mainly relies on operators manually controlling the fixed-frequency start of the primary feeder and the switching on / off of the dust collection equipment in the hopper. This process has significant drawbacks: Instantaneous pressure fluctuations can lead to overfeeding: When the mixture is started to be fed into the hopper, if the operator fails to start the fixed frequency mode of the primary feeder in time, the primary feeder screw will go out of control due to the sudden increase in instantaneous pressure, causing an excessive amount of mixture to rush into the secondary feeder, disrupting the feeding balance and affecting the glass melting quality.

[0003] Mixed material backflow and dust pollution: Due to the typically significant drop in height within the silo design, lighter mixed materials are prone to backflow (dust rising) during the feeding process. This not only results in material waste, but more seriously, the diffused dust poses a threat to the respiratory health of on-site operators and pollutes the working environment. Operators must manually activate dust collection equipment to address this, but there is a risk of delayed response or forgetting to shut it down.

[0004] Currently, although the fixed-frequency mode can effectively avoid overfeeding caused by instantaneous pressure fluctuations, and dust removal equipment can effectively control dust pollution, the start and stop of these two key functions in existing technologies rely entirely on manual operation. The unreliability of manual operation is the root cause of the frequent occurrence of the above problems, becoming a bottleneck restricting the improvement of production efficiency, the protection of personnel health, and environmental cleanliness.

[0005] Therefore, in view of this, we will study and improve the existing structure to provide an automatic feeding device for the production of electronic display glass, in order to achieve a more practical purpose. Utility Model Content

[0006] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide an automatic feeding device for the production of electronic display glass. It can eliminate the risk of instantaneous pressure fluctuations and feeding screw runaway caused by untimely or negligent manual operation, reduce material waste and pollution to the working environment, improve production efficiency, protect personnel health, and reduce the burden of environmental cleaning. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An automatic feeding device for the production of electronic display glass includes a hopper, a support frame fixedly installed inside the hopper, a gravity sensing component at the top of the support frame, a material tank above the gravity sensing component, an infrared transmitter fixedly installed on one side of the lower middle position inside the hopper, an infrared receiver fixedly installed on the other side of the lower middle position inside the hopper, and two dust collectors fixedly installed outside the hopper, with the suction pipes of the dust collectors penetrating into and being fixed inside the hopper. The gravity sensing component includes a base and a top support. Four sliding rods are fixedly installed at the four corners of the bottom of the top support, and the four sliding rods are slidably connected to the side of the base. A pressure sensor is fixedly installed at the top of the base. A strong spring is fixedly installed between the base and the top support. A top rod is fixedly installed at the top of the top support. The discharge port of the material tank is inserted into the top of the top rod. An umbrella-shaped protective cover is fixedly installed on the side of the top rod.

[0009] Furthermore, chucks are fixedly installed at the bottom and near the bottom of the slide rod, with the two chucks located at the bottom and top of the base, respectively.

[0010] Furthermore, the pressure sensor, infrared transmitter, and infrared receiver are all connected to a remote PLC via wireless signals.

[0011] Furthermore, both the infrared transmitter and the infrared receiver are connected to the remote PLC via wireless signals.

[0012] Furthermore, the infrared transmitter and the infrared receiver are positioned directly opposite each other, and there are no obstacles between them.

[0013] Furthermore, the powerful spring is always kept in a compressed state.

[0014] Furthermore, the dust collector's suction pipe is provided with at least three air inlets, and the three air inlets are distributed vertically and equidistantly inside the hopper.

[0015] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: This solution automatically triggers the fixed-frequency mode of the primary feeder through a gravity sensing component, achieving "fixed frequency during feeding." This completely eliminates the risk of instantaneous pressure fluctuations and feed screw runaway caused by untimely or negligent manual operation.

[0016] By monitoring the material feeding status in real time through infrared sensors, the dust removal equipment achieves intelligent linkage of "dust removal when there is material and shutdown when there is no material." This can suppress the dust generated when the mixture falls, greatly reducing material waste and pollution to the working environment.

[0017] Ultimately, this allows the mixture to be continuously, stably, and precisely fed into the kiln, improving production efficiency, protecting personnel health, and reducing the burden of environmental cleanup. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic feeding device in this utility model; Figure 2 This is a three-dimensional structural diagram of the internal structure of the silo in this utility model; Figure 3 This is a schematic diagram of the internal planar structure of the silo in this utility model; Figure 4 This is a schematic diagram of the gravity sensing component in this utility model.

[0019] Explanation of the labels in the diagram: 1. Hopper; 101. Support frame; 2. Gravity sensor component; 201. Base support; 202. Top support; 203, slide bar; 2031, chuck; 204. Pressure sensor; 205. High-strength spring; 206. Push rod; 207. Umbrella-shaped protective cover; 3. Material tank; 4. Infrared emitter; 5. Infrared receiver; 6. Dust collector. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0021] Please see Figure 1 - Figure 4 An automatic feeding device for the production of electronic display glass includes a hopper 1. A support frame 101 is fixedly installed inside the hopper 1. A gravity sensing component 2 is set at the top of the support frame 101. A material tank 3 is set above the gravity sensing component 2. An infrared transmitter 4 is fixedly installed on one side of the lower middle position inside the hopper 1. An infrared receiver 5 is fixedly installed on the other side of the lower middle position inside the hopper 1. Two dust collectors 6 are fixedly installed outside the hopper 1. The suction pipe of the dust collector 6 passes through the interior of the hopper 1 and is fixed. The gravity sensing component 2 includes a base 201 and a top support 202. Four sliding rods 203 are fixedly installed at the four corners of the bottom end of the top support 202. All four sliding rods 203 are slidably connected to the side of the base 201. A pressure sensor 204 is fixedly installed at the top of the base 201. A strong spring 205 is fixedly installed between the base 201 and the top support 202. A top rod 206 is fixedly installed at the top of the top support 202. The discharge port of the material tank 3 is inserted into the top of the top rod 206. An umbrella-shaped protective cover 207 is fixedly installed on the side of the top rod 206.

[0022] See Figure 4 Specifically, chucks 2031 are fixedly installed at the bottom and near the bottom of the slide bar 203, with the two chucks 2031 located at the bottom and top of the base 201, respectively.

[0023] The chuck 2031 can limit the distance that the slide bar 203 can slide up and down, and at the same time, it can limit the lifting direction of the top support 202 and related structures.

[0024] Specifically, the pressure sensor 204, infrared transmitter 4, and infrared receiver 5 are all connected to the remote PLC via wireless signals.

[0025] When the pressure sensor 204 detects the corresponding pressure value, it will transmit a signal to the PLC. This signal is a "pressure trigger" signal. When the PLC receives the "downward trigger" signal, it determines that the feeding action has started and immediately issues a command to start the fixed frequency mode operation of the primary feeder configured on the material tank 3, so that the material tank 3 feeds material in the fixed frequency mode.

[0026] See Figure 2 , Figure 3 Specifically, both the infrared transmitter 4 and the infrared receiver 5 are connected to the remote PLC via wireless signals.

[0027] Infrared transmitter 4 and infrared receiver 5 are combined to form an infrared sensing device. When the material flow blocks the light beam, the infrared receiver cannot receive the infrared signal or the intensity of the received infrared signal is significantly reduced. The status signal of "material passing through" or "beam blocking" is sent to the PLC. When the PLC receives the "material passing through" signal from the infrared sensor, it determines that there is mixed material being fed in and immediately issues a command to start the dust collector 6 and complete the dust removal during material feeding.

[0028] Specifically, the infrared transmitter 4 and the infrared receiver 5 are positioned directly opposite each other, and there are no obstructions between them.

[0029] This avoids the support frame 101 affecting the propagation of infrared signals and ensures the accuracy of material feeding and detection.

[0030] See Figure 4 Specifically, the powerful spring 205 is always kept in a compressed state.

[0031] In this way, when the operator lifts the material tank 3, the top rod 206 can be guaranteed to return to the initial position, thereby changing the signal value transmitted by the pressure sensor 204, and finally making the transmitted signal a "lift and release" signal. When the PLC receives the "lift release" signal, it determines that the feeding action has ended. After infrared confirmation that there is no material flow, it issues a command to shut down the fixed frequency mode of the primary feeder.

[0032] See Figure 1 , Figure 2 , Figure 3 Specifically, the suction pipe of the dust collector 6 is equipped with at least three air ports, and the three air ports are distributed at equal intervals in the upper and lower parts of the hopper 1.

[0033] Setting up multiple air vents can improve the dust collection effect when material is discharged from the inside of hopper 1.

[0034] Working principle: The entire device operation involves three processes: Feeding start detection and fixed-frequency feeding start: When the operator places the tank 3 filled with the mixture onto the gravity sensing component 2, the weight of the tank 3 is transferred to the top support 202 via the top rod 206. The top support 202 presses down, compressing the always-compressed high-strength spring 205, and then slides smoothly down the bottom support 201 via the slide rod 203. This action ultimately applies pressure to the pressure sensor 204 at the bottom of the top support 202. After the pressure sensor 204 detects that the pressure value has reached the preset "pressure trigger" threshold, it immediately sends a "pressure trigger" signal to the remote PLC via a wireless signal. Upon receiving this signal, the PLC determines that "feeding action has started." In response, the PLC immediately sends a command to the primary feeder controlling the discharge of the tank 3, forcing it to start operating in fixed-frequency mode. This ensures that the mixture begins to be discharged at a stable, preset speed, fundamentally avoiding the problem of overfeeding caused by a sudden increase in pressure.

[0035] Material feeding process monitoring and dust removal linkage: After the mixture flows out of the tank 3, it passes through the lower part of the hopper 1. Here, an infrared transmitter 4 and an infrared receiver 5, positioned directly opposite each other, form an infrared sensing light curtain. Falling material blocks the infrared beam, causing the infrared receiver 5 to either fail to receive a signal or receive a significantly weakened signal. The infrared receiver 5 sends this "beam blocking" or "material passing through" status signal to the PLC in real time.

[0036] Upon receiving this signal, the PLC, combined with the previously received "downward trigger" signal, confirms that the material is currently in an effective feeding state. Therefore, the PLC issues a command to automatically start the two dust collectors 6 installed outside the hopper 1. The dust collectors 6, through their suction pipes extending into the hopper 1 and equipped with multiple equidistant air inlets, promptly remove the dust generated during the feeding process, controlling backflow.

[0037] Feeding completion detection and automatic equipment shutdown: When the mixture in the material tank 3 is about to be emptied, the weight applied to the gravity sensing component 2 disappears when the operator lifts the material tank 3. Under the rebound action of the strong spring 205, the top support 202 drives the top rod 206 to return to the initial position, and the pressure on the pressure sensor 204 is released. The pressure sensor 204 detects the pressure change and sends a "lift release" signal to the PLC. Upon receiving the "lift release" signal, the PLC determines that the feeding action has ended. At this time, the PLC will make a comprehensive judgment, such as confirming that the infrared sensing light curtain has been restored to unobstructed flow, i.e., no material flow is passing through, and then issue instructions in sequence: turn off the fixed frequency mode of the primary feeder, and after a certain delay to ensure that the dust is completely sucked up, turn off the dust collector 6.

[0038] The above three processes complete one cycle of feeding and dust removal.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An automatic feeding device for the production of electronic display glass, comprising a hopper (1), characterized in that: A support frame (101) is fixedly installed inside the silo (1). A gravity sensing component (2) is provided at the top of the support frame (101). A material tank (3) is provided above the gravity sensing component (2). An infrared transmitter (4) is fixedly installed on one side of the lower middle position inside the silo (1). An infrared receiver (5) is fixedly installed on the other side of the lower middle position inside the silo (1). Two dust collectors (6) are fixedly installed outside the silo (1). The suction pipe of the dust collector (6) passes through the interior of the silo (1) and is fixed. The gravity sensing component (2) includes a base (201) and a top support (202). Four sliding rods (203) are fixedly installed at the four corners of the bottom end of the top support (202). The four sliding rods (203) are slidably connected to the side of the base (201). A pressure sensor (204) is fixedly installed at the top of the base (201). A strong spring (205) is fixedly installed between the base (201) and the top support (202). A top rod (206) is fixedly installed at the top of the top support (202). The outlet of the material tank (3) is inserted into the top of the top rod (206). An umbrella-shaped protective cover (207) is fixedly installed on the side of the top rod (206).

2. The automatic feeding device for electronic display glass production according to claim 1, characterized in that: The slide bar (203) is fixedly equipped with chucks (2031) at its bottom end and near the bottom end, and the two chucks (2031) are located at the bottom and top of the base (201) respectively.

3. The automatic feeding device for electronic display glass production according to claim 1, characterized in that: The pressure sensor (204), infrared transmitter (4), and infrared receiver (5) are all connected to the remote PLC via wireless signals.

4. The automatic feeding device for electronic display glass production according to claim 3, characterized in that: The infrared transmitter (4) and infrared receiver (5) are both connected to the remote PLC signal via wireless signal.

5. The automatic feeding device for electronic display glass production according to claim 1, characterized in that: The infrared transmitter (4) and the infrared receiver (5) are positioned directly opposite each other, and there are no obstacles between them.

6. The automatic feeding device for electronic display glass production according to claim 1, characterized in that: The powerful spring (205) is always kept in a compressed state.

7. The automatic feeding device for electronic display glass production according to claim 1, characterized in that: The dust collector (6) has at least three air inlets in its suction pipe, and the three air inlets are distributed equidistantly in the upper and lower parts of the hopper (1).

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