Powder press hopper level alarm

Abstract

The utility model discloses a powder press hopper liquid level alarm device, alarm device includes material cylinder cover, be equipped with quick fixture and detection mechanism on material cylinder cover, quick fixture fixed mounting on material cylinder cover, the top of material cylinder cover is equipped with the notched, and detection mechanism can detachable mounting on the notched, and detection mechanism passes through quick fixture locking, detection mechanism includes invisible infrared sensor, and invisible infrared sensor installs below sensor fixed plate, and invisible infrared sensor is embedded in the notched. The powder press hopper liquid level alarm device provided by the utility model is firm, and simple and quick to dismount, and the material cylinder is cleaned simultaneously, and it has good sealing property, can guarantee that the material in material cylinder is not polluted.

Description

Technical Field

[0001] This utility model relates to the field of powder press equipment technology, and more specifically to a powder press hopper liquid level alarm device. Background Technology

[0002] In industries such as powder metallurgy, pharmaceuticals, and food processing, powder presses are crucial forming equipment. During operation, precise control of the liquid level of powdered material (especially metal particles) within the hopper (or barrel) is paramount. A low liquid level can lead to supply interruptions, causing the press to run dry and damaging the mold; a high liquid level can result in material overflow, waste, and even affect the normal operation of the press and the workshop environment. Therefore, reliable and accurate detection of the liquid level line in the hopper and triggering alarms are core requirements for ensuring production continuity, product quality, and equipment safety.

[0003] Existing powder press hopper level detection technologies mostly employ visible light optical sensors, and many are fixedly installed. These technologies have several shortcomings in terms of avoiding material contamination, resisting powder diffuse reflection interference, facilitating equipment cleaning and maintenance, and ensuring installation sealing and stability. Consequently, they fail to meet the stringent requirements of modern industry for high precision, high reliability, high cleanliness, and high efficiency production. Therefore, there is an urgent need to develop a novel hopper level detection and alarm device to effectively overcome these deficiencies. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a liquid level alarm device for a powder press hopper. This device is securely installed, easy and quick to assemble and disassemble, and convenient for cleaning the hopper. At the same time, it has good sealing properties, which can ensure that the material inside the hopper is not contaminated.

[0005] The technical solution adopted by this utility model to solve the technical problem is: a liquid level alarm device for a powder press hopper, the alarm device including a hopper cover; the hopper cover is provided with a quick clamp and a detection mechanism; the quick clamp is fixedly installed on the hopper cover; a slot is opened at the top of the hopper cover, the detection mechanism is detachably installed on the slot, and the detection mechanism is locked by the quick clamp; the detection mechanism includes an invisible infrared sensor, the invisible infrared sensor is installed below the sensor fixing plate, and the invisible infrared sensor is embedded in the slot.

[0006] Furthermore, the quick clamp is a spring-type rotary quick clamp; the spring-type rotary quick clamp can tighten or loosen the sensor fixing plate by rotating in different directions.

[0007] Furthermore, an inner guide post is provided above the material cylinder cover, and a fixing pin is provided on the sensor fixing plate; the detection mechanism is clamped by the pin hole between the fixing pin and the inner guide post.

[0008] Furthermore, there are two inner guide posts, which are fixed to both sides of the slot by welding; there are also two fixing pins, which are fixed to the sensor mounting plate by bolts.

[0009] Furthermore, a convex ring is provided on the inner side of the groove, the detection mechanism is installed on the convex ring inside the groove, and a sealing gasket is provided between the detection mechanism and the convex ring.

[0010] Furthermore, a display hole is provided on the sensor mounting plate, which is used to observe the status of the indicator light of the invisible infrared sensor.

[0011] The beneficial effects of this utility model are as follows: Compared with the prior art, the powder press hopper liquid level alarm device provided by this utility model has the following advantages:

[0012] 1) An invisible infrared sensor is used to effectively overcome the interference of strong diffuse reflection characteristics of powdered metal particles on detection, and greatly reduce the occurrence of false alarms and missed alarms. When the liquid level of powdered metal particles in the barrel reaches the set value, it is accurately detected and an alarm is triggered.

[0013] 2) The invisible infrared sensor is located above the barrel cover. It is a non-contact detection method, which avoids the problem of the sensor probe contaminating the material and the material adhering to the sensor, which can lead to performance degradation or failure.

[0014] 3) The quick-release clamp enables rapid assembly and disassembly of the sensor and the barrel cover, significantly simplifying the installation and disassembly process and facilitating the cleaning and maintenance of the barrel;

[0015] 4) A sealing gasket is installed inside the slot to ensure the good sealing performance of the alarm device, which can effectively prevent external pollutants from entering the material cylinder and contaminating the material, and also avoid internal dust leakage that pollutes the environment or affects the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a side view of the present invention.

[0018] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the EE plane.

[0019] Figure 4 for Figure 3 A schematic diagram of the local structure of region I.

[0020] Figure 5 This is a schematic diagram of the detection mechanism in this utility model.

[0021] Figure 6 This is a schematic diagram of the material cylinder cover in this utility model.

[0022] Among them, 1-barrel cover; 11-convex ring; 12-inner hole guide post; 13-slot; 2-quick clamp; 3-detection mechanism; 31-sensor fixing plate; 32-invisible infrared sensor; 33-fixing pin; 34-display hole; 35-bolt; 4-sealing gasket. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] Example

[0025] like Figures 1-3 As shown, a liquid level alarm device for a powder press hopper includes a hopper cover 1; the hopper cover 1 is equipped with a quick clamp 2 and a detection mechanism 3; the quick clamp 2 is fixedly installed on the hopper cover 1; a slot 13 is opened at the top of the hopper cover 1, and the detection mechanism 3 is detachably installed on the slot 13, and the detection mechanism 3 is locked by the quick clamp 2; the detection mechanism 3 includes an invisible infrared sensor 32, which is installed below a sensor fixing plate 31 by bolts 35, and the invisible infrared sensor 32 is embedded in the slot 13. Compared with visible light sensors, the use of an invisible infrared sensor 32 effectively overcomes the interference of the strong diffuse reflection characteristics of powdered metal particles on detection, greatly reduces the occurrence of false alarms and missed alarms, and can achieve accurate detection of the set liquid level line; moreover, the invisible infrared sensor 32 is located on the hopper cover 1, which is a non-contact detection, avoiding the problem of material contamination of the sensor probe and material adhesion contamination of the sensor, which leads to performance degradation or failure.

[0026] like Figure 4As shown, the quick-release clamp 2 is a spring-type rotary quick-release clamp; the spring-type rotary quick-release clamp achieves tightening or loosening of the sensor fixing plate 31 by rotating in different directions. When the detection mechanism 3 is clamped, the spring-type rotary quick-release clamp 2 rotates and presses against the top of the sensor fixing plate 31; when the detection mechanism 3 needs to be disassembled, the quick-release clamp 2 is rotated in the opposite direction, and the spring-type rotary quick-release clamp 2 can be moved away from the top of the sensor fixing plate 31, at which point the detection mechanism 3 can be removed. The spring-type rotary quick-release clamp used in this embodiment is a purchased product, model QLSWC18R-18, brand IMAO.

[0027] like Figure 5 and 6 As shown, an inner guide post 12 is provided above the barrel cover 1, and a fixing pin 33 is provided on the sensor fixing plate 31. The detection mechanism 3 is clamped by the pin hole engagement between the fixing pin 32 and the inner guide post 12, and by a quick clamp. In this embodiment, there are two inner guide posts 12, which are fixed to both sides of the slot 13 by welding; there are also two fixing pins 33, which are fixed to the sensor fixing plate 31 by bolts. When the detection mechanism 3 is clamped, the pin hole engagement between the fixing pin 33 and the inner guide post 12 guides the detection mechanism 3 into the slot 13, and then the quick clamp 2 rotates and presses against the sensor fixing plate 31 to achieve clamping.

[0028] like Figure 6 As shown, a protruding ring 11 is provided on the inner side of the slot 13. The detection mechanism 3 is installed on the protruding ring 11 inside the slot 13, and a sealing gasket 4 is provided between the detection mechanism 3 and the protruding ring 11. When the detection mechanism 3 is clamped, it is guided above the protruding ring 11 of the slot 13 by the engagement of the fixing pin 33 and the inner guide post 12. The quick clamp 2 is rotated and pressed against the sensor fixing plate 31, and a seal is achieved by the polyurethane sealing gasket 4. When the material cylinder needs to be cleaned, the detection mechanism 3 must be removed and the polyurethane sealing gasket 4 must be taken out.

[0029] like Figure 5 As shown, a display hole 34 is provided on the sensor fixing plate 31, which facilitates observation of the indicator light status of the invisible infrared sensor 32.

[0030] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A liquid level alarm device for a powder press hopper, the alarm device comprising a hopper cover; characterized in that... The material cylinder cover is equipped with a quick clamp and a detection mechanism; the quick clamp is fixedly installed on the material cylinder cover; a slot is opened at the top of the material cylinder cover, and the detection mechanism is detachably installed on the slot and locked by the quick clamp; the detection mechanism includes an invisible infrared sensor and a sensor fixing plate, the invisible infrared sensor is installed below the sensor fixing plate, and the invisible infrared sensor is embedded in the slot.

2. The powder press hopper liquid level alarm device as described in claim 1, characterized in that: The quick clamp is a spring-type rotary quick clamp; the spring-type rotary quick clamp can tighten or loosen the sensor fixing plate by rotating in different directions.

3. The powder press hopper liquid level alarm device as described in claim 1, characterized in that: An inner guide post is provided above the material cylinder cover, and a fixing pin is provided on the sensor fixing plate; the detection mechanism is clamped by the pin hole between the fixing pin and the inner guide post.

4. The powder press hopper liquid level alarm device as described in claim 3, characterized in that: There are two inner guide posts, which are fixed to both sides of the slot by welding; there are also two fixing pins, which are fixed to the sensor fixing plate by bolts.

5. The powder press hopper liquid level alarm device as described in claim 1, characterized in that: A convex ring is provided on the inner side of the groove, and the detection mechanism is installed on the convex ring inside the groove. A sealing gasket is provided between the detection mechanism and the convex ring.

6. The powder press hopper liquid level alarm device as described in claim 1, characterized in that: The sensor mounting plate has a display hole for observing the status of the indicator light of the invisible infrared sensor.

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