Vibration air cylinder

Abstract

The utility model discloses a vibration air cylinder which comprises a cylinder body, a rear cover is arranged at one end of the cylinder body, a front cover is arranged at the other end of the cylinder body, a piston rod is inserted into the front cover, one end of the piston rod is arranged outside the cylinder body, the other end of the piston rod is inserted into the cylinder body and penetrates through a piston located in the cylinder body, and a first air chamber is formed between the piston and the rear cover. A first air chamber is formed between the piston and the front cover, a second air chamber is formed between the piston and the front cover, the piston rod is sleeved with two sets of positioning sleeves, one set of positioning sleeves are located in the first air chamber, the other set of positioning sleeves are located in the second air chamber, air inlets and air outlets are formed in the positions, corresponding to the first air chamber and the second air chamber, of the side wall of the cylinder body, and telescopic control over the piston is achieved. According to the vibration air cylinder, the two sets of positioning sleeves are additionally arranged, stability is improved, meanwhile, cooling is achieved through the spiral air channels in the positioning sleeves, and therefore the service life of the air cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of cylinders, in particular to a vibrating cylinder. Background Art

[0002] In small packaging machinery, it is necessary to perform jitter through the telescopic movement of a cylinder to prevent particles from clogging in a conical funnel. The existing vibrating cylinder uses a built-in reversing valve to automatically reverse the piston under the action of air pressure, hitting the front and rear end covers to generate vibration. This structure of vibrating cylinder is prone to shaking during long-term use, wearing the sealing ring, and has poor dust-proof and heat dissipation performance, which easily affects the service life of the cylinder. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a vibrating cylinder. By adding double sets of positioning sleeves to the structure of a conventional cylinder, while improving stability, the spiral air path in the positioning sleeve is used to achieve cooling, thereby enhancing the service life of the cylinder.

[0004] To achieve the above purpose, the utility model proposes the following technical solution: a vibrating cylinder, including a cylinder block, one end of the cylinder block is provided with a rear cover, the other end is provided with a front cover, a piston rod is inserted through the front cover, one end of the piston rod is located outside the cylinder block, and the other end is inserted into the cylinder block and passes through a piston located inside the cylinder block. A first air chamber is formed between the piston and the rear cover, and a second air chamber is formed between the piston and the front cover. Two sets of positioning sleeves are sleeved on the piston rod, one set of positioning sleeves is located in the first air chamber, and the other set of positioning sleeves is located in the second air chamber. Air inlets and air outlets are provided on the side wall of the cylinder block corresponding to the positions of the first air chamber and the second air chamber to realize the telescopic control of the piston.

[0005] Preferably, a spiral air path is provided on the inner wall of the positioning sleeve, and both ends of the spiral air path penetrate through both ends of the positioning sleeve, so that the gas entering the first air chamber or the second air chamber enters the spiral air path to cool down the piston rod.

[0006] Preferably, multiple sets of spiral air paths are provided.

[0007] Preferably, a dust blowing sleeve is further provided at the end of the cylinder block in front of the front cover. A dust blowing port is provided on the side wall of the cylinder block between the dust blowing sleeve and the front cover. At the same time, a spiral dust blowing channel is provided on the inner wall of the dust blowing sleeve.

[0008] Preferably, a first air inlet and a second air outlet are provided on the side wall of the cylinder block corresponding to the first air chamber, and a second air inlet and a first air outlet are provided on the side wall of the cylinder block corresponding to the second air chamber. Among them, the first air inlet and the first air outlet form a group. Gas enters from the first air inlet and pushes the piston to move towards the second air chamber. The gas in the second air chamber is discharged from the first air outlet to realize the control of the piston rod to extend. The second air inlet and the second air outlet form a group. Gas enters from the second air inlet and pushes the piston to move towards the first air chamber. The gas in the first air chamber is discharged from the second air outlet to realize the retraction of the piston rod.

[0009] Compared with the prior art, the vibrating cylinder disclosed by the present invention has the following beneficial effects:

[0010] Two groups of positioning sleeves are added to the piston rod in the cylinder, which can effectively improve the stability of the telescopic movement of the piston rod, avoid shaking and wear. A spiral air channel is provided on the inner wall of the positioning sleeve, so that the entering gas can cool the piston rod through the spiral air channel. At the same time, the two groups of air inlets and outlets enable the intake air each time to be normal-temperature or low-temperature gas provided by the air source, increasing the cooling effect compared with the traditional single group of air inlets and outlets;

[0011] The dust-proof sleeve provided at the end, in cooperation with the dust-blowing channel, can effectively prevent dust from entering the inside of the piston rod and play a dust-proof role. Description of the Drawings

[0012] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 is the overall structural sectional view of the embodiment of the present invention;

[0014] Figure 2 is the structural diagram of the positioning sleeve in the embodiment of the present invention. Detailed Embodiments

[0015] The following will describe in detail the embodiments of the technical solutions of the present invention with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0016] A vibrating cylinder disclosed by the present invention has a structure as Figure 1As shown in the figure, it includes a cylinder block 1. One end of the cylinder block is provided with a rear cover 2, and the other end is provided with a front cover 3. A piston rod 4 is inserted through the front cover. A piston 5 is arranged inside the cylinder block. One end of the piston rod is located outside the cylinder block, and the other end is inserted into the cylinder block and passes through the piston. A first air chamber 6 is formed between the piston and the rear cover, and a second air chamber 7 is formed between the piston and the front cover. Two sets of positioning sleeves 8 are sleeved on the piston rod. One set of positioning sleeves is located in the first air chamber, and the other set of positioning sleeves is located in the second air chamber. The stability of the piston rod during reciprocating movement can be enhanced by the two sets of positioning sleeves.

[0017] A first air inlet 9 and a second air outlet 10 are provided on the side wall of the cylinder block corresponding to the first air chamber, and a second air inlet 11 and a first air outlet 12 are provided on the side wall of the corresponding second air chamber. During use, the first air inlet and the first air outlet form a group, and the second air inlet and the second air outlet form a group. When gas enters from the first air inlet and pushes the piston to move towards the second air chamber, the gas in the second air chamber is discharged from the first air outlet to realize the control of the piston rod extending. When gas enters from the second air inlet and pushes the piston to move towards the first air chamber, the gas in the first air chamber is discharged from the second air outlet to realize the retraction of the piston rod. The setting of these two sets of air inlet and outlet ports enables the gas entering the air chamber each time to be the normal-temperature or low-temperature gas directly provided by the gas source, thereby enhancing the cooling effect of the gas on the inside of the cylinder block, especially on the piston rod.

[0018] The positioning sleeve is sleeved on the piston rod, and its structure is as Figure 2 shown, which is a sleeve structure. A plurality of sets of spiral air channels 13 are provided on its inner wall. Both ends of these spiral air channels penetrate to both ends of the positioning sleeve, so that the gas entering the air chamber can enter the spiral air channels from the end of the positioning sleeve, and then wrap the surface of the piston rod, thereby playing a role in further cooling the piston rod.

[0019] In order to improve the dust-proof performance, a dust blowing sleeve 14 is also provided at the end of the cylinder block in front of the front cover. A dust blowing port 15 is provided on the side wall of the cylinder block between the dust blowing sleeve and the front cover. At the same time, a spiral dust blowing channel 16 is provided on the inner wall of the dust blowing sleeve. Gas enters the dust blowing channel from the dust blowing port and then is discharged from the end of the dust blowing sleeve, using the air flow to blow out the dust entering the piston rod, effectively preventing dust from entering the piston rod to play a dust-proof role.

[0020] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. A vibrating cylinder, characterized in that: It includes a cylinder body, a rear cover is provided at one end of the cylinder body, a front cover is provided at the other end, a piston rod is inserted in the front cover, one end of the piston rod is provided outside the cylinder body, and the other end is inserted into the cylinder body and passes through the piston located in the cylinder body, a first air chamber is formed between the piston and the rear cover, and a second air chamber is formed between the piston and the front cover, two groups of positioning sleeves are provided on the piston rod, one group of positioning sleeves is located in the first air chamber, and the other group of positioning sleeves is located in the second air chamber, and air inlets and air outlets are provided on the side wall of the cylinder body at positions corresponding to the first air chamber and the second air chamber to realize the extension and retraction control of the piston.

2. The vibrating cylinder according to claim 1, characterized in that: A spiral air channel is provided on the inner wall of the positioning sleeve, and two ends of the spiral air channel penetrate through two ends of the positioning sleeve, so that the gas entering the first air chamber or the second air chamber enters the spiral air channel to cool the piston rod.

3. The vibrating cylinder according to claim 2, characterized in that: The spiral airways are divided into multiple groups.

4. The vibrating cylinder according to claim 1, characterized in that: The end of the cylinder body is also provided with a dust blowing sleeve located at the front end of the front cover, a dust blowing port is provided on the side wall of the cylinder body between the dust blowing sleeve and the front cover, and a spiral dust blowing channel is provided on the inner wall of the dust blowing sleeve.

5. The vibrating cylinder according to claim 1, characterized in that: A first air inlet and a second air outlet are provided on the side wall of the cylinder body corresponding to the first air chamber, and a second air inlet and a first air outlet are provided on the side wall of the cylinder body corresponding to the second air chamber, wherein the first air inlet and the first air outlet are a group to realize piston rod extension control, and the second air inlet and the second air outlet are a group to realize piston rod retraction control.

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