Automatic spray gun distance measuring device with cooling effect for fluidized bed granulator

Abstract

A spray gun automatic distance measuring device with a cooling effect of a fluid bed granulator comprises a shaft connecting piece provided with a main shaft, a driving connecting piece which is located at one end of the shaft connecting piece and provided with a driving motor, and a distance adjusting connecting piece which is located at the other end of the shaft connecting piece and provided with a lifting shaft. A sensor connecting piece is arranged on the spray head located at the lower end of the lifting shaft and provided with an ultrasonic distance measuring sensor located in an inner cavity of the sensor connecting piece, an air inlet connector and an air outlet connector, the air inlet connector and the air outlet connector are located on the peripheral face of the sensor connecting piece and distributed on the two sides of the sensor connecting piece, and a fit clearance serving as an air passing channel is formed between the ultrasonic distance measuring sensor and the inner cavity of the sensor connecting piece. A path defining a cooling gas flowing track is formed among the gas flowing channel, the gas inlet connector and the gas outlet connector. The beneficial effects of the utility model lie in that the ultrasonic distance measuring sensor is arranged in the sensor connecting piece, and low-temperature gas is used as a cooling medium to carry out cooling protection on the ultrasonic distance measuring sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of medicine processing, in particular to an automatic distance measuring device for a spray gun of a boiling granulator with a cooling effect. Background Art

[0002] Fluidizing dryer is a drying equipment that heats the air through a heat exchanger to form hot air. The clean hot air is distributed through a valve plate into the body of the fluidizing dryer. The wet material that enters the body of the dryer from the feeder is boiled by the hot air. Since the hot air is in extensive contact with the material, the heat and mass transfer process is increased, so the material can be dried in a shorter time. Fluidizing dryer can be used for drying pharmaceuticals, chemical raw materials, food, grain processing, and feed.

[0003] Publication (Announcement) No.: CN220879353U discloses an automatic distance measurement spray gun adjustment device, including a main shaft and a first driving mechanism, the first driving mechanism drives the main shaft to rotate, a central shaft is arranged to rotate inside the main shaft, the central shaft is connected to a second driving mechanism and a distance adjustment mechanism, a distance sensor and a plurality of spray guns are arranged on the distance adjustment mechanism, and the second driving mechanism drives the central shaft to rotate to drive the distance adjustment mechanism to operate so as to adjust the height of the spray gun from the bottom of the drum. This device can be automatically adjusted according to the data fed back by the distance sensor, so that there is no need to stop the machine, and there will be no waste of materials due to the stoppage, but there is a defect, that is, there is a lack of cooling measures for the ultrasonic sensor, because the temperature in the chamber of the boiling granulator is relatively high, up to 100-110°, which will exceed the upper temperature limit of the ultrasonic sensor of 70°, so the sensor will be damaged by the high temperature. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a spray gun automatic distance measuring device with cooling effect for a boiling granulator to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the automatic distance measuring device of the spray gun with cooling effect of the boiling granulator comprises a shaft connecting member provided with a main shaft, a driving connecting member located at one end of the shaft connecting member and provided with a driving motor, and a distance adjusting connecting member located at the other end of the shaft connecting member and provided with a lifting shaft, the middle part and the lower end of the lifting shaft are provided with a nozzle, the nozzle located at the lower end of the lifting shaft is provided with a sensor connecting member, the sensor connecting member is provided with an ultrasonic distance measuring sensor located in its inner cavity, and an air inlet interface and an air outlet interface located on its outer peripheral surface and distributed on both sides, a matching gap as an air passage is formed between the ultrasonic distance measuring sensor and the inner cavity of the sensor connecting member, a path defining the air passage trajectory of the cooling gas is formed between the air passage and the air inlet interface and the air outlet interface, and the air inlet interface and the air outlet interface are staggered in distribution up and down.

[0006] Further improvement, the sensor connecting part includes an inner tube and an outer tube sleeve, the inner tube is used to form an air passage and a stop cap with an outer diameter larger than that of the inner tube is arranged at its upper end, the outer tube sleeve has an upper end opening and a lower end opening, the upper end opening is placed in the inner tube that can be plugged into the outer tube sleeve, and the final assembly position of the outer tube sleeve in the inner tube is confirmed by abutting with the stop cap, and the lower end opening is placed in the ultrasonic ranging sensor existing in the air passage.

[0007] To further improve, the air inlet interface and the air outlet interface are both arranged on the outer circumferential surface of the outer cylinder sleeve, and the outer cylinder sleeve and the inner cylinder are both provided with air holes that communicate with the air inlet interface and the air outlet interface.

[0008] For further improvement, a stop ring is provided at the lower end of the ultrasonic distance measuring sensor, which abuts against the bottom plate of the outer tube sleeve and quickly limits its final assembly position in the inner tube.

[0009] For further improvement, the lower end opening is formed with a first mounting groove on the bottom plate of the outer tube sleeve, and a first sealing ring is arranged in the first mounting groove.

[0010] For further improvement, a second installation groove is arranged on the outer peripheral surface of the inner tube, and a second sealing ring is arranged in the second installation groove.

[0011] Further improvement, the outer cylinder sleeve is made of metal.

[0012] Further improvement, the inner cylinder is made of plastic material.

[0013] The beneficial effects of the utility model are:

[0014] The utility model arranges the ultrasonic distance measuring sensor in the sensor connecting piece, and low-temperature gas passes through the interior of the sensor connecting piece, so that the low-temperature gas is used as a cooling medium to cool and protect the ultrasonic distance measuring sensor, and the position arrangement of the air inlet interface and the air outlet interface can extend the air trajectory of the low-temperature gas, and can take away more heat, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the full cross-section structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the full cross-section structure of the sensor connector of the utility model;

[0017] Figure 3 This is a schematic diagram of the full cross-section structure of the outer cylinder sleeve of the utility model;

[0018] Figure 4 It is a schematic diagram of the full cross-section structure of the utility model applied to a boiling granulator. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Referring to the accompanying drawings: the automatic distance measuring device of the spray gun with cooling effect of the boiling granulator comprises an axis connector 1 provided with a main axis, a drive connector 2 located at one end of the axis connector 1 and provided with a drive motor, and a distance adjustment connector 3 located at the other end of the axis connector 1 and provided with a lifting shaft 31. The middle and lower ends of the lifting shaft 31 are provided with nozzles 4. The nozzle 4 located at the lower end of the lifting shaft 31 is provided with a sensor connector 5. The sensor connector 5 is provided with an ultrasonic distance measuring sensor 6 located in its inner cavity, and an air inlet interface 7 and an air outlet interface 8 located on its outer peripheral surface and distributed on both sides. A matching gap serving as an air passage 9 is formed between the ultrasonic distance measuring sensor 6 and the inner cavity of the sensor connector 5. A path defining the air trajectory of the cooling gas is formed between the air passage 9 and the air inlet interface 7 and the air outlet interface 8. The air inlet interface 7 and the air outlet interface 8 are staggered in the upper and lower positions. The principle of the utility model is that the ultrasonic ranging sensor 6 is arranged in the sensor connecting member 5, and the sensor connecting member 5 is provided with an air inlet interface 7 and an air outlet interface 8, the air inlet interface 7 is used to be connected to the air inlet pipe, and the air outlet interface 8 is used to be connected to the air outlet pipe, so that the low-temperature gas is guided into the air passage 9 as a cooling medium to cool and protect the ultrasonic ranging sensor 6, and the air inlet interface 7 is located at the lower end, and the air outlet interface 8 is located at the upper end, and the two are distributed on the left and right, so that the air trajectory of the low-temperature gas in the air passage 9 can be extended, and the time of the low-temperature gas in the air passage 9 can be extended, and more heat can be taken away, thereby improving the heat dissipation efficiency.

[0021] The sensor connector 5 includes an inner tube 51 and an outer tube sleeve 52. The inner tube 51 is used to form the air passage 9 and is provided with a stop cap 51-a having an outer diameter greater than that of the inner tube 51 at its upper end. The outer tube sleeve 52 has an upper opening 52-a and a lower opening 52-b. The upper opening 52-a is inserted into the inner tube 51 that can be plugged into the outer tube sleeve 52, and the outer tube sleeve 52 is confirmed in the final assembly position of the inner tube 51 by contacting with the stop cap 51-a. The lower opening 52-b is inserted into the storage The ultrasonic distance measuring sensor 6 in the air passage 9, the inner tube 51 is mainly used to form the air passage 9, and the outer tube sleeve 52 is used to set the ultrasonic distance measuring sensor 6 and realize the plug-in match with the inner tube 51, so that the ultrasonic distance measuring sensor 6 can be placed in the air passage 9, and the stop cap 51-a not only forms a step structure by using the outer diameter difference between itself and the inner tube 51, but also enables the inner tube 51 to be abutted against the upper end of the outer tube sleeve 52 after being plugged with the outer tube sleeve 52, so as to quickly confirm that the outer tube sleeve 52 is in the inner tube. The final assembly position on the tube 51, and the stop cap 51-a can also be provided with a wiring channel 51-a1 which is interconnected with the air passage 9, that is, the wiring channel 51-a1 is used to extend the power-carrying wire of the ultrasonic ranging sensor 6 to the outside of the sensor connector 5 and electrically connect with the power-carrying element. The outer coat of the power-carrying wire is made of rubber material, and the outer diameter thereof is slightly larger than the inner diameter of the wiring channel 51-a1, so that the two can be closely matched, and a certain sealing effect can be achieved, which can prevent moisture from entering the wiring channel. The outer sleeve 52 is inserted into the inner sleeve 51 through the channel 51-a1, and the upper opening 52-a makes the upper end of the outer sleeve 52 have no top plate, so that the two can be plugged in and matched with the inner sleeve 51 to achieve a face-to-face setting. The lower opening 52-b is formed on the bottom plate of the outer sleeve 52 (the inner diameter of which is smaller than the inner diameter of the upper opening 52-a), which is mainly used to adapt to the outer diameter of the ultrasonic ranging sensor 6, so that the two can be snap-fitted, so that when the outer sleeve 52 is disassembled or installed, the ultrasonic ranging sensor 6 can be disassembled or installed together.

[0022] The air inlet interface 7 and the air outlet interface 8 are both arranged on the outer circumferential surface of the outer tube sleeve 52, and the outer tube sleeve 52 and the inner tube 51 are both provided with air holes 30 which are interconnected with the air inlet interface 7 and the air outlet interface 8, so that the air inlet interface 7 and the air outlet interface 8 are both located outside the outer tube sleeve 52, so as to facilitate the connection of the air inlet interface 7 and the air outlet interface 8 with the pipeline, and the air holes 30 are used to guide the low-temperature gas entering from the air inlet interface 7 into the air outlet channel 9, or to take away the heat and leave the air outlet channel 9 to enter the air outlet interface 8.

[0023] The lower end of the ultrasonic ranging sensor 6 is provided with a stop ring 61 which abuts against the bottom plate of the outer tube sleeve 52 and quickly limits its final assembly position in the inner tube 51. That is, the stop ring 61 and the bottom plate of the outer tube sleeve 52 are abutted against each other, so as to quickly determine the final assembly position of the ultrasonic ranging sensor 6 in the inner tube 51.

[0024] The lower opening 52-b is formed with a first mounting groove 52-b1 on the bottom plate of the outer tube sleeve 52, and a first sealing ring 10 is arranged in the first mounting groove 52-b1. That is, the first sealing ring 10 is utilized to make up for the matching gap between the lower opening 52-b and the ultrasonic ranging sensor 6, thereby achieving a certain sealing effect and making the air passage 9 a sealed chamber to prevent moisture from entering.

[0025] A second mounting groove 51 - b is provided on the outer circumferential surface of the inner tube 51 , and a second sealing ring 20 is provided in the second mounting groove 51 - b , that is, the second sealing ring 10 is utilized to increase the matching stability of the inner tube 51 and the outer tube sleeve 52 to prevent the two from being separated under non-human operation.

[0026] The outer sleeve 52 is made of metal material, specifically stainless steel with good rust resistance, which can prevent the outer sleeve 52 from rusting.

[0027] The inner cylinder 51 is made of plastic material, specifically polytetrafluoroethylene with extremely low thermal conductivity, which prevents the heat of the outer cylinder sleeve 52 from being quickly transferred to the inner cylinder 51, has a certain heat insulation effect, and also improves the cooling capacity of the low-temperature gas.

[0028] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An automatic distance measuring device for a spray gun with a cooling effect for a boiling granulator, comprising a shaft connecting member (1) provided with a main shaft, a driving connecting member (2) located at one end of the shaft connecting member (1) and provided with a driving motor, and a distance adjusting connecting member (3) located at the other end of the shaft connecting member (1) and provided with a lifting shaft (31), wherein a nozzle (4) is provided at the middle and lower ends of the lifting shaft (31), characterized in that: A sensor connector (5) is provided on the nozzle (4) at the lower end of the lifting shaft (31), and the sensor connector (5) is provided with an ultrasonic distance measuring sensor (6) located in its inner cavity, and an air inlet interface (7) and an air outlet interface (8) located on its outer peripheral surface and distributed on both sides. A matching gap serving as an air passage (9) is formed between the ultrasonic distance measuring sensor (6) and the inner cavity of the sensor connector (5), and a path defining a cooling gas air passage trajectory is formed between the air passage (9) and the air inlet interface (7) and the air outlet interface (8), and the air inlet interface (7) and the air outlet interface (8) are distributed in an up-and-down staggered manner.

2. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 1 is characterized in that: The sensor connecting member (5) comprises an inner tube (51) and an outer tube sleeve (52); the inner tube (51) is used to form the air passage (9) and is provided with a stop cap (51-a) having an outer diameter greater than that of the inner tube (51) at its upper end; the outer tube sleeve (52) has an upper end opening (52-a) and a lower end opening (52-b); the upper end opening (52-a) is inserted into the inner tube (51) which can be plugged into the outer tube sleeve (52) and confirms the final assembly position of the outer tube sleeve (52) in the inner tube (51) by contacting with the stop cap (51-a); the lower end opening (52-b) is inserted into the ultrasonic ranging sensor (6) existing in the air passage (9).

3. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 2, characterized in that: The air inlet interface (7) and the air outlet interface (8) are both arranged on the outer peripheral surface of the outer tube sleeve (52), and the outer tube sleeve (52) and the inner tube (51) are both provided with air holes (30) which are interconnected with the air inlet interface (7) and the air outlet interface (8).

4. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 2, characterized in that: The lower end of the ultrasonic distance measuring sensor (6) is provided with a stop ring (61) which abuts against the bottom plate of the outer cylinder sleeve (52) and quickly limits the final assembly position of the ultrasonic distance measuring sensor (6) in the inner cylinder (51).

5. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 4, characterized in that: The lower end opening (52-b) is formed with a first installation groove (52-b1) on the bottom plate of the outer tube sleeve (52), and a first sealing ring (10) is arranged in the first installation groove (52-b1).

6. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 2, characterized in that: A second installation groove (51-b) is provided on the outer peripheral surface of the inner cylinder (51), and a second sealing ring (20) is provided in the second installation groove (51-b).

7. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 2, characterized in that: The outer cylinder sleeve (52) is made of metal.

8. The automatic distance measuring device for the spray gun with cooling effect of the boiling granulator according to claim 2, characterized in that: The inner cylinder (51) is made of plastic material.

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