Oil cylinder of paper disc forming machine

Abstract

According to the technical scheme, the oil cylinder of the paper plate forming machine is characterized by comprising a cylinder barrel and a piston rod; an end cover is fixedly arranged on the outer side of the cylinder barrel; one end of the cylinder barrel is positioned in the end cover; a rear cover is arranged on one side of the cylinder barrel; a threaded groove is formed in the end cover; a threaded hole is formed in the rear cover; the threaded groove is connected with the threaded hole through a first screw; one side of the cylinder barrel is connected with the end cover, and the end cover is connected with the rear cover through screws, so that the rear cover and the end cover are stably connected, and the shock resistance and impact resistance of the oil cylinder are improved; a chromium coating is arranged on the piston rod; the chromium coating completely covers the piston rod, so that the hardness of the piston rod can be improved, and the service life of the piston rod can be prolonged through the chromium coating; the piston rod has the advantages of being high in shock resistance and impact resistance and long in service life.

Description

Technical Field

[0001] The utility model relates to an oil cylinder, more specifically to an oil cylinder of a paper plate forming machine. Background Art

[0002] The oil cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the reduction device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. Oil cylinders are used in paper plate forming machines. The piston rod hardness of some oil cylinders is not good, which causes the piston rod surface to wear after a period of use, resulting in oil leakage from the cylinder. The seismic and impact resistance of some oil cylinders is poor, which can easily cause damage to the cylinder. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides an oil cylinder for a paper tray forming machine, which has the effects of strong shock resistance, strong impact resistance and long service life of the piston rod.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paper plate forming machine oil cylinder, including a cylinder barrel and a piston rod, characterized in that: an end cover is fixedly arranged on the outer side of the cylinder barrel; one end of the cylinder barrel is located in the end cover; a rear cover is arranged on one side of the cylinder barrel; a threaded groove is provided on the end cover; a threaded hole is provided on the rear cover; the threaded groove and the threaded hole are connected by a plurality of first screws; and a chrome-plated layer is provided on the piston rod.

[0005] The utility model is further configured as follows: a plurality of first sealing rings are arranged on the rear cover; a movable plug is arranged in the cylinder; the movable plug is fixedly connected to the piston rod; a plurality of second sealing rings are arranged on the movable plug; and a plurality of third sealing rings are arranged on the piston rod.

[0006] The utility model is further configured as follows: a groove is provided in the cylinder; the groove is in contact with and connected to the fixing plug; a plurality of fourth sealing rings and a plurality of fifth sealing rings are provided on the fixing plug; an internal thread is provided on the cylinder; a pressure cover is provided on one side of the fixing plug; a cover thread is provided on the pressure cover; the pressure cover is connected to the internal thread through the cover thread; and a plurality of sixth sealing rings are provided on the pressure cover.

[0007] The utility model is further configured as follows: a first oil port is provided on the rear cover; a second oil port is provided on the cylinder barrel; a connecting portion is provided on the outer side of the cylinder barrel; a through hole is provided on the connecting portion; and the cylinder barrel is fixedly connected to the through hole.

[0008] The utility model is further configured as follows: a connecting groove is provided on the cylinder; a flange is provided on the outer side of the piston rod; a middle hole is provided on the flange; and the connecting groove and the middle hole are connected by a second screw.

[0009] To sum up, the utility model has the following beneficial effects: a chrome-plated layer is formed on the outer side of the piston rod, which completely covers the piston rod, thereby increasing the hardness of the piston rod, and the chrome-plated layer can prolong the service life of the piston rod; one side of the cylinder barrel is connected to the end cover, and the end cover is connected to the rear cover by screws, thereby making the connection between the rear cover and the end cover firm, thereby improving the shock resistance and impact resistance of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of this embodiment;

[0011] Figure 2 It is a right view of this embodiment;

[0012] Figure 3 yes Figure 2 FF cross-sectional view;

[0013] Figure 4 yes Figure 3 A magnified view of part A;

[0014] Figure 5 yes Figure 3 A magnified view of part B;

[0015] Figure 6 Schematic diagram of the end cover and gland of this embodiment;

[0016] Figure 7 Schematic diagram of the internal thread of this embodiment;

[0017] Figure 8 Schematic diagram of the chrome plating layer in this embodiment.

[0018] Figure numerals: 1. cylinder barrel; 2. piston rod; 3. end cover; 4. rear cover; 5. threaded groove; 6. threaded hole; 7. first screw; 8. chrome plating layer; 9. first sealing ring; 10. movable plug; 11. second sealing ring; 12. third sealing ring; 13. groove; 14. fixed plug; 15. fourth sealing ring; 16. fifth sealing ring; 17. internal thread; 18. pressure cap; 19. cover thread; 20. sixth sealing ring; 21. first oil port; 22. second oil port; 23. connecting part; 24. through hole; 25. connecting groove; 26. flange; 27. middle hole; 28. second screw. DETAILED DESCRIPTION

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

[0020] This embodiment discloses a paper tray forming machine oil cylinder, such as Figures 1 to 8 As shown, the utility model has the effects of strong shock resistance, strong impact resistance and long service life of the piston rod, including a cylinder 1 and a piston rod 2; an end cover 3 is fixedly arranged on the outer side of the cylinder 1; one end of the cylinder 1 is located in the end cover 3; a back cover 4 is arranged on one side of the cylinder 1; a threaded groove 5 is opened on the end cover 3; a threaded hole 6 is opened on the back cover 4; the threaded groove 5 and the threaded hole 6 are connected by ten first screws 7; and a chrome-plated layer 8 is arranged on the piston rod 2.

[0021] By adopting the above technical solution: the outer side of the piston rod 2 is plated with a chrome-plated layer 8, so that the hardness of the piston rod 2 is high and the service life of the piston rod 2 is long; the threaded hole 6 opened on the rear cover 4 and the threaded groove 5 on the end cover 3 are connected by the first screw 7, so that the rear cover 4 and the end cover 3 are firmly connected, thereby improving the shock resistance and impact resistance of the cylinder.

[0022] Two first sealing rings 9 are arranged on the rear cover 4 ; a movable plug 10 is arranged in the cylinder 1 ; the movable plug 10 is fixedly connected to the piston rod 2 ; three second sealing rings 11 are arranged on the movable plug 10 ; and two third sealing rings 12 are arranged on the piston rod 2 .

[0023] By adopting the above technical solution: the first sealing ring 9 ensures good sealing between the rear cover 4 and the cylinder 1; the second sealing ring 11 ensures good sealing between the movable plug 10 and the cylinder 1; and the third sealing ring 12 ensures good sealing between the movable plug 10 and the piston rod 2.

[0024] The cylinder barrel 1 has a groove 13 in it; the groove 13 is in contact with and connected to a fixing plug 14; the fixing plug 14 is provided with two fourth sealing rings 15 and four fifth sealing rings 16; the cylinder barrel 1 is provided with an internal thread 17; a pressure cap 18 is provided on one side of the fixing plug 14; the pressure cap 18 has a cover thread 19; the pressure cap 18 is connected to the internal thread 17 via the cover thread 19; the pressure cap 18 is provided with two sixth sealing rings 20.

[0025] By adopting the above technical solution: the fourth sealing ring 15 and the fifth sealing ring 16 make the sealing of the fixing plug 14 good to prevent oil leakage; the inner cover thread 19 on the pressure cover 18 is connected with the inner thread 17 on the cylinder 1 so that the fixing plug 14 is firmly arranged between the groove 13 and the pressure cover 18 through the groove 13 and the pressure cover 18; the sixth sealing ring 20 makes the sealing of the pressure cover 18 good.

[0026] The rear cover 4 is provided with a first oil port 21 ; the cylinder barrel 1 is provided with a second oil port 22 ; a connecting portion 23 is provided on the outer side of the cylinder barrel 1 ; a through hole 24 is provided on the connecting portion 23 ; and the cylinder barrel 1 is fixedly connected to the through hole 24 .

[0027] By adopting the above technical solution: the first oil port 21 and the second oil port 22 facilitate the oil inlet and outlet; when the first oil port 21 is filled with oil, the piston rod 2 and the movable plug 10 are extended; when the second oil port 22 is filled with oil, the piston rod 2 and the movable plug 10 are retracted; the cylinder 1 is fixedly connected to the through hole 24 so that the cylinder 1 is fixedly connected to the connecting part 23.

[0028] The cylinder 1 is provided with a connecting groove 25 ; the outer side of the piston rod 2 is provided with a flange 26 ; the flange 26 is provided with a middle hole 27 ; the connecting groove 25 and the middle hole 27 are connected by a second screw 28 .

[0029] By adopting the above technical solution: after the second screw 28 connects the middle hole 27 and the connecting groove 25 , the flange 26 is firmly connected to the piston rod 2 , and is connected to the outside world through the flange 26 .

[0030] In summary, the utility model has the following beneficial effects: a chrome-plated layer 8 is plated on the outer side of the piston rod 2, and the chrome-plated layer 8 completely covers the piston rod 2, thereby improving the hardness of the piston rod 2, and the chrome-plated layer 8 can prolong the service life of the piston rod 2; one side of the cylinder barrel 1 is connected to the end cover 3, and the end cover 3 is connected to the rear cover 4 through the first screw 7, so that the rear cover 4 and the end cover 3 are firmly connected, thereby improving the shock resistance and impact resistance of the cylinder.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper tray forming machine oil cylinder, comprising a cylinder barrel (1) and a piston rod (2), characterized in that: An end cover (3) is fixedly arranged on the outer side of the cylinder barrel (1); one end of the cylinder barrel (1) is located inside the end cover (3); a rear cover (4) is arranged on one side of the cylinder barrel (1); a threaded groove (5) is provided on the end cover (3); a threaded hole (6) is provided on the rear cover (4); the threaded groove (5) and the threaded hole (6) are connected by a plurality of first screws (7); and a chrome-plated layer (8) is provided on the piston rod (2).

2. The oil cylinder of the paper tray forming machine according to claim 1, characterized in that: The rear cover (4) is provided with a plurality of first sealing rings (9); a movable plug (10) is provided in the cylinder barrel (1); the movable plug (10) is fixedly connected to the piston rod (2); the movable plug (10) is provided with a plurality of second sealing rings (11); and the piston rod (2) is provided with a plurality of third sealing rings (12).

3. The oil cylinder of the paper tray forming machine according to claim 2, characterized in that: The cylinder barrel (1) has a groove (13) in it; the groove (13) is in contact with and connected to a fixing plug (14); a plurality of fourth sealing rings (15) and a plurality of fifth sealing rings (16) are provided on the fixing plug (14); an internal thread (17) is provided on the cylinder barrel (1); a pressure cover (18) is provided on one side of the fixing plug (14); a cover thread (19) is provided on the pressure cover (18); the pressure cover (18) is connected to the internal thread (17) via the cover thread (19); and a plurality of sixth sealing rings (20) are provided on the pressure cover (18).

4. The oil cylinder of the paper tray forming machine according to claim 3, characterized in that: The rear cover (4) is provided with a first oil port (21); the cylinder barrel (1) is provided with a second oil port (22); a connecting portion (23) is provided on the outside of the cylinder barrel (1); a through hole (24) is provided on the connecting portion (23); and the cylinder barrel (1) is fixedly connected to the through hole (24).

5. The oil cylinder of the paper tray forming machine according to claim 4, characterized in that: The cylinder barrel (1) is provided with a connecting groove (25); the outer side of the piston rod (2) is provided with a flange (26); the flange (26) is provided with a middle hole (27); the connecting groove (25) and the middle hole (27) are connected by a second screw (28).

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