CN110980245B

CN110980245B - Hand-clamping-preventing cylinder for traditional Chinese medicine production

Info

Publication number: CN110980245B
Application number: CN201911238796.3A
Authority: CN
Inventors: 蔡永潮
Original assignee: Zhejiang Houdar Intelligent Technology Co Ltd
Current assignee: Zhejiang Houdar Intelligent Technology Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-07-27
Anticipated expiration: 2039-12-06
Also published as: CN113320965A; CN110980245A; CN113320965B

Abstract

The invention relates to a hand-clamping-preventing cylinder for traditional Chinese medicine production, which comprises a cylinder body piston and a piston rod, wherein the piston rod is connected with a material pushing plate, an inflating sleeve capable of elastically stretching is sleeved on the piston rod, one end of the inflating sleeve is connected with the material pushing plate in a sealing mode, the other end of the inflating sleeve is connected with the cylinder body in a sealing mode, the cylinder body, the inflating sleeve and the material pushing plate enclose an air cavity, a rod cavity is provided with a rod cavity air hole, a rodless cavity air hole is formed in the rodless cavity, a one-way valve which is opened towards the interior of the rodless cavity is arranged in the rod cavity, the air cavity is communicated with the rodless cavity through a control valve, the inflating sleeve is further provided with an exhaust mechanism which exhausts gas in the inflating sleeve when a push-pull cylinder contracts, the control valve is opened when the cylinder extends out, and the control valve is closed when the cylinder contracts. The invention has the advantage that the gap between the material pushing plate and the cylinder body is not easy to clamp an object, and solves the problem that the phenomenon of the object generation is easy to occur in the cylinder for pushing the object in the traditional Chinese medicine production process.

Description

Hand-clamping-preventing cylinder for traditional Chinese medicine production

Technical Field

The invention relates to traditional Chinese medicine production equipment, in particular to a hand clamping prevention cylinder for traditional Chinese medicine production.

Background

In the automatic production process of traditional Chinese medicines, some traditional Chinese medicines are prepared into particles, the particles are filled in medicine bottles through a bottle filling mechanism to meet the requirement of the total weight of the bottled traditional Chinese medicines, then the particles are conveyed to the next procedure through a conveying line, a bottle cap is screwed on, in the bottle filling process, due to the fact that the traditional Chinese medicine particles are just in a falling-out state and cannot stop outputting the traditional Chinese medicine particles when stopping outputting the traditional Chinese medicine particles, overweight or deficient traditional Chinese medicine particles are ejected and other reasons, the phenomenon of deficiency is caused, the overweight or deficient bottled traditional Chinese medicines are all defective traditional Chinese medicines, and the overweight or deficient traditional Chinese medicines need to be selected. The existing conveying line can not select out the overweight and overweight defective bottled traditional Chinese medicines when conveying the bottled traditional Chinese medicines, and secondary weighing is carried out manually to judge whether the bottled traditional Chinese medicines are qualified or not. A conveying mechanism capable of picking out defective bottled traditional Chinese medicines is designed, the structure is that a piston rod of an air cylinder is connected with a material pushing plate to push out defective bottled traditional Chinese medicines by arranging the air cylinder, a gap exists between the material pushing plate and a cylinder body of the air cylinder in the mechanism, and the material pushing plate and the cylinder body cause safety accidents for clamping fingers mistakenly entering the gap in the piston rod recycling process. In addition, the phenomenon that bottled traditional Chinese medicines are easy to topple due to the inertia effect in the process of bottling the defective traditional Chinese medicines.

Disclosure of Invention

The invention provides a hand-clamping prevention cylinder for traditional Chinese medicine production, which is characterized in that a gap between a material pushing plate and a cylinder body is not easy to clamp an object, and the problem that the phenomenon of generating the object easily occurs in the existing cylinder for pushing the object in the traditional Chinese medicine production process is solved.

The technical problem is solved by the following technical scheme: a hand clamping prevention cylinder for traditional Chinese medicine production comprises a cylinder body and a piston rod, wherein a piston is arranged in the cylinder body, the cylinder body is divided into a rod cavity and a rodless cavity by the piston, the piston rod is connected to the piston and extends out of the rod cavity to be connected with a material pushing plate, the hand clamping prevention cylinder is characterized in that an elastic telescopic inflating sleeve is sleeved on the piston rod, one end of the inflating sleeve is connected with the material pushing plate in a sealing mode, the other end of the inflating sleeve is connected with the cylinder body in a sealing mode, the cylinder body, the inflating sleeve and the material pushing plate are enclosed to form an air cavity, a rod cavity is arranged in the rod cavity and provided with a rod cavity air hole, a rodless cavity air hole is arranged in the rodless cavity, a check valve which is opened towards the inside of the rod cavity is arranged in the rod cavity, the air cavity is communicated with the rod cavity through a control valve, and an exhaust mechanism which exhausts air in the inflating sleeve when the cylinder contracts is further arranged on the inflating sleeve, the control valve is opened when the cylinder extends, and the control valve is closed when the cylinder contracts. The phenomenon that a clamping hand or an object is generated between the material pushing plate and the cylinder body of the air cylinder when the air cylinder contracts is prevented in a simple structure mode, and the safety during working is improved. And when the cylinder stretches out to make the scraping wings keep away from the cylinder body, the volume increase of air cavity forms negative pressure chamber to can open the effect that has the gaseous outflow of pole intracavity with higher speed, response speed when this effect can make the cylinder stretch out is faster. The gas in the rod cavity flows into the gas chamber, so that the inflation sleeve is more difficult to collapse to improve the strength of the inflation sleeve. Thereby avoiding the protective effect from being excessively reduced after the inflatable sleeve is elongated.

Preferably, the exhaust mechanism comprises a plurality of exhaust channels, inlets of the exhaust channels are arranged on the part, located in the air cavity, of the material pushing plate, outlets of the exhaust channels are located on the part, located outside the air cavity, of the material pushing plate, the piston rod seals the inlets of the exhaust channels when the piston rod extends out of the material pushing plate to push the material pushing plate, and the piston rod is disconnected from the inlets of the exhaust channels when the piston rod retracts to pull the material pushing plate. The synchronous opening and closing of the exhaust mechanism can be automatically realized by utilizing the extension and retraction of the piston rod.

Preferably, the material pushing plate is provided with an air suction hole which penetrates through the material pushing plate along a direction perpendicular to the conveying direction of the blanking conveying belt, the outlet end of the exhaust channel is provided with an air outlet nozzle which is arranged in the air suction hole in a penetrating manner, and the outlet method of the air outlet nozzle faces to one end, far away from the recovery workbench, of the air suction hole. In the process of rejecting inferior-quality bottled traditional Chinese medicines, when the material pushing plate reaches the stroke end point for recycling, the material pushing plate loses the support of the bottled traditional Chinese medicines, the bottled traditional Chinese medicines continue to move forwards under the inertia effect, the bottom of the medicine bottle can generate speed reduction due to the friction effect between the material pushing plate and the recycling workbench or the discharging conveying belt, the bottled traditional Chinese medicines tend to incline forwards at the moment, and the bottled traditional Chinese medicines are prone to topple over due to the tendency. And this technical scheme is when the cylinder shrink, and the gaseous exhaust of gas intracavity can make the suction hole produce the effect of breathing in, and the effect of breathing in produces the adsorption affinity for one side of keeping away from cylinder body at the scraping wings, and this adsorption affinity can produce the effect of backward power to the body of bottled traditional chinese medicine to reduce the possibility of empting the phenomenon more than producing, make the more difficult production of substandard product bottled traditional chinese medicine push away from empty the phenomenon.

The invention has the following advantages: the phenomenon of clamping objects is not easy to generate when the cylinder retracts, and the safety is good; the defective bottled traditional Chinese medicine is not easy to topple over when pushed out.

Drawings

FIG. 1 is a schematic view of a cylinder of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

In the figure: the piston rod 13, the material pushing plate 14, the cylinder body 15, the gap 16, the inflating sleeve 29, the air cavity 30, the piston 31, the rod cavity 32, the rodless cavity 33, the rod cavity air hole 34, the rodless cavity air hole 35, the check valve 36, the control valve 37, the exhaust channel 38, the inlet 39 of the exhaust channel, the connecting cover 40, the sealing plate 41, the inlet sealing ring 42, the air suction hole 43, the air outlet nozzle 44, the extension section 45 and the distance L8 of the air outlet end of the extension section exceeding the air outlet nozzle.

Detailed Description

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 and 2, a hand-pinching prevention cylinder for traditional Chinese medicine production comprises a cylinder body 15, a piston rod 13 and a material pushing plate 14. A gap 16 is formed between the ejector plate and the cylinder 15. The piston rod is sleeved with an inflatable sleeve 29 which can elastically stretch out and draw back. One end of the inflating sleeve is connected with the material pushing plate in a sealing mode, and the other end of the inflating sleeve is connected with the cylinder body in a sealing mode. The cylinder body, the inflating sleeve and the material pushing plate form an air cavity 30 to fill the gap 16, and the function of preventing hands from being clamped is achieved. A piston 31 is provided in the cylinder. The piston divides the cylinder into a rod chamber 32 and a rodless chamber 33. The piston rod is connected to the piston and extends through the rod cavity to connect with the material pushing plate. The rod cavity is provided with a rod cavity air hole 34. The rodless cavity is provided with a rodless cavity part air hole 35. The rod cavity air hole is provided with a one-way valve 36 which opens towards the inside of the rod cavity. The air chamber and the rod chamber are communicated through a control valve 37. The air charging sleeve is also provided with an exhaust mechanism which can exhaust the air in the air charging sleeve when the air cylinder contracts. When the cylinder extends, the control valve opens the cylinder and contracts, and the control valve closes. The exhaust mechanism includes a plurality of exhaust passages 38. The inlet 39 of the exhaust channel is arranged at the location of the stripper plate within the air cavity. All exhaust passages share an inlet of the exhaust passage. The ejector plate is provided with a connecting cover 40 located in the air cavity. The piston rod is arranged in the connecting cover in a penetrating way. The piston rod is provided with a sealing plate 41. The sealing plate is used for pulling the connecting cover to drive the material pushing plate to contract along with the piston rod. The sealing plate is also capable of sealing off the inlet of the exhaust passage by cooperating with an inlet portion sealing ring 42 on the inlet of the exhaust passage. The outlet of the exhaust channel is positioned on the part of the material pushing plate, which is positioned outside the air cavity. The material pushing plate is provided with a suction hole 43 which penetrates through the material pushing plate along the conveying direction vertical to the blanking conveying belt. The outlet end of the exhaust passage is provided with an air outlet nozzle 44 which is arranged in the air suction hole in a penetrating way. The outlet method of the air outlet nozzle faces to one end of the air suction hole far away from the recovery workbench. When the air cylinder is in a contraction state in an initial state, when the air cylinder extends to drive the material pushing plate, the control valve is opened, the inlet 39 of the exhaust channel is sealed by the sealing plate through the piston rod, and the gas in the rod cavity flows to the gas cavity and is filled in the gas cavity, so that the rigidity of the gas filling sleeve is improved. When the cylinder contracts and can pull the scraping wings, the rod cavity is inflated through the rod cavity air hole 34, the rodless cavity is deflated through the rodless cavity air hole 35, the sealing plate pulls the scraping wings through the connecting cover and loses the sealing effect on the inlet 39 of the exhaust channel, the gas in the gas cavity is discharged through the inlet 39 and the gas outlet nozzle of the exhaust channel, the gas outlet nozzle discharges the gas through jet flow, so that the suction hole sucks the gas and the suction force is generated on one side of the scraping wings, far away from the cylinder body, and the suction force is used for preventing the object pushed out by the scraping wings from tilting due to inertia movement.

The air outlet end of the air suction hole is provided with an elongated section 45. The distance L8 that the extension section surpasses the end of giving vent to anger of gas outlet nozzle is more than 1 centimetre, can improve the gas suction effect that the gas outlet nozzle blows up and produces the suction effect to the suction opening.

Claims

1. A hand clamping prevention cylinder for traditional Chinese medicine production comprises a cylinder body and a piston rod, wherein a piston is arranged in the cylinder body, the cylinder body is divided into a rod cavity and a rodless cavity by the piston, the piston rod is connected to the piston and extends out of the rod cavity to be connected with a material pushing plate, the hand clamping prevention cylinder is characterized in that an elastic telescopic inflating sleeve is sleeved on the piston rod, one end of the inflating sleeve is connected with the material pushing plate in a sealing mode, the other end of the inflating sleeve is connected with the cylinder body in a sealing mode, the cylinder body, the inflating sleeve and the material pushing plate are enclosed to form an air cavity, a rod cavity is arranged in the rod cavity and provided with a rod cavity air hole, a rodless cavity air hole is arranged in the rodless cavity, a check valve which is opened towards the inside of the rod cavity is arranged in the rod cavity, the air cavity is communicated with the rod cavity through a control valve, and an exhaust mechanism which exhausts air in the inflating sleeve when the cylinder contracts is further arranged on the inflating sleeve, the control valve is opened when the cylinder extends, and the control valve is closed when the cylinder contracts; the exhaust mechanism comprises a plurality of exhaust channels, inlets of the exhaust channels are arranged on the part, located in the air cavity, of the material pushing plate, outlets of the exhaust channels are located on the part, located outside the air cavity, of the material pushing plate, the piston rod seals the inlets of the exhaust channels when the piston rod extends out of the material pushing plate to push the material pushing plate, and the piston rod is disconnected from the inlets of the exhaust channels when the piston rod retracts to pull the material pushing plate.

2. The cylinder of claim 1, wherein the pusher plate has a suction hole extending through the pusher plate in a direction perpendicular to the feeding direction of the feeding belt, and the outlet end of the exhaust passage has a discharge nozzle penetrating the suction hole, and the discharge nozzle is directed toward the end of the suction hole away from the recovery table.