Oil shifting cylinder for die-casting machine

Abstract

The utility model discloses an oil pulling cylinder for a die-casting machine, which comprises an oil pulling cylinder body, a piston rod is fixedly arranged on the front side of the oil pulling cylinder body, and a cleaning mechanism is arranged on the front side of the oil pulling cylinder body close to the outer side of the piston rod. The cleaning mechanism comprises a fixed sleeve fixedly arranged on the front side of the oil shifting cylinder body and close to the outer side of the piston rod, the outer side of the fixed sleeve is fixedly connected with a connecting pipe, one side of the connecting pipe is movably connected with a cover body, and a movable cylinder is movably arranged on the inner side of the fixed sleeve. According to the oil poking cylinder for the die-casting machine, cleaning liquid is evenly sprayed out of the outer side of the piston rod through the cleaning opening, the multiple sets of cleaning strips are made to rotatably wipe the piston rod, multi-angle dead-corner-free automatic cleaning of the corresponding piston rod is achieved, time and labor are saved, and the phenomenon that when the piston rod stretches out and draws back, the piston rod is damaged is avoided. And more impurities can be adsorbed on the outer side of the sealing element, so that the damage to the sealing element caused by the accumulation of the impurities is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machines, in particular to an oil-displacing cylinder for a die-casting machine. Background Art

[0002] Die casting machine is a machine used for pressure casting. It includes hot press chamber and cold press chamber. Later, it was divided into two types: vertical and horizontal. The die casting machine hydraulically injects molten metal into the mold under pressure and cools it into shape. After the mold is opened, a solid metal casting can be obtained. It was originally used for die casting lead type.

[0003] The utility model with patent application number: CN201920500690.5 relates to the technical field of oil cylinders, and discloses an oil cylinder, including an oil cylinder body, the top and bottom of the oil cylinder body are fixedly connected with a fitting block, the top of the oil cylinder body is fixedly connected with a connecting block, the front of the oil cylinder body is fixedly connected with a slide bar, the interior of the slide bar is provided with a fixing hole, the exterior of the oil cylinder body is sleeved with a fixing block, and the interior of the fixing block is provided with a movable cavity. The oil cylinder is provided with a slide bar and a fixing hole through the front of the oil cylinder body, so that the bolt passes through the slide bar to fix the oil cylinder body and the fixed block, and the interior of the fixed block is provided with an active cavity, a limit ring, a bolt, an active bolt, an active spring and an active handle, so that the bolt can be pulled left and right by the active handle, and the bolt can be pulled out or inserted into the interior of the fixed hole, so that the fixed block can achieve the effect of sliding or fixed connection, and the fixed height can be adjusted at will.

[0004] However, the utility model still has some shortcomings. For example, when the device is used on a die-casting machine, the working environment of the die-casting machine is diverse. When the working environment is relatively harsh, more impurities will be adsorbed on the piston rod when the cylinder piston rod is extended and retracted. As a result, the impurities will move with the piston rod during the contraction of the piston rod and will be blocked outside the cylinder by the seal in the guide sleeve. Over time, the accumulation of impurities will cause damage to the seal, causing the cylinder to leak and affecting the service life of the cylinder. Utility Model Content

[0005] The main purpose of the utility model is to provide an oil-displacing cylinder for a die-casting machine, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The cam is provided with a plurality of cleaning strips on its inner side, and a plurality of cleaning strips are provided on its inner side.

[0008] Preferably, the fixed sleeve connecting pipe, the movable sleeve, the connecting block, the movable ring and the cleaning port are connected to each other, the connecting pipe and the cover body are threadedly connected, and the movable sleeve and several groups of connecting blocks are arranged as an integral structure.

[0009] Preferably, the movable cylinder is limitably arranged on the inner side of the cover body, and a plurality of groups of connecting blocks are evenly arranged in a circle.

[0010] Preferably, the cleaning ports in the plurality of groups are evenly arranged in a circle, and the water outlets of the cleaning ports in the plurality of groups are opposite to the piston rod.

[0011] Preferably, several groups of the cleaning strips are made of wear-resistant silicone material, and several groups of the cleaning strips are in contact with the piston rod.

[0012] Preferably, the round block is limitedly slidably arranged on the inner side of the control groove, and the round block is adapted to the control groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Cleaning liquid is sprayed evenly on the outside of the piston rod through the cleaning port, so that several groups of cleaning strips rotate and wipe the piston rod sprayed with cleaning liquid, realizing multi-angle automatic cleaning of the corresponding piston rod without dead angles, saving time and effort, and avoiding more impurities adsorbed on the outside of the piston rod when the piston rod is extended and retracted, thereby avoiding damage to the seal due to the accumulation of impurities and prolonging the service life of the oil cylinder body.

[0015] 2. When the products produced by the die-casting machine cannot come into contact with the cleaning liquid, disconnect the connecting pipe from the cleaning liquid pipeline, seal it with a cover, and then use only a few groups of cleaning strips to clean the outside of the piston rod. This allows the die-casting machine to be cleaned in real time without closing the oil cylinder body, thereby improving the working efficiency of the die-casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an oil-displacing cylinder for a die-casting machine according to the utility model;

[0017] Figure 2 It is a partial cross-sectional structural schematic diagram of an oil-displacing cylinder for a die-casting machine of the utility model;

[0018] Figure 3 This is a schematic diagram of the enlarged structure of part A of an oil-displacing cylinder for a die-casting machine according to the utility model;

[0019] Figure 4 The utility model is a partial cutaway structural schematic diagram of a cleaning mechanism of an oil-displacing cylinder for a die-casting machine.

[0020] In the figure: 1. oil cylinder body; 2. piston rod; 3. cleaning mechanism; 31. fixed sleeve; 32. connecting pipe; 33. cover body; 34. movable cylinder; 35. connecting block; 36. movable ring; 37. cleaning port; 38. circular ring; 39. cleaning strip; 310. circular block; 311. control groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, an oil-pushing cylinder for a die-casting machine comprises an oil-pushing cylinder body 1, a piston rod 2 is fixedly arranged on the front side of the oil-pushing cylinder body 1, a cleaning mechanism 3 is arranged at the front side of the oil-pushing cylinder body 1 near the outer side of the piston rod 2, the cleaning mechanism 3 comprises a fixed sleeve 31 fixedly arranged at the front side of the oil-pushing cylinder body 1 near the outer side of the piston rod 2, a connecting pipe 32 is fixedly connected to the outer side of the fixed sleeve 31, a cover body 33 is movably connected to one side of the connecting pipe 32, a movable cylinder 34 is movably arranged on the inner side of the fixed sleeve 31, a plurality of groups of connecting blocks 35 are fixedly connected to the front side of the movable cylinder 34, a movable ring 36 is fixedly arranged on the front side of the plurality of groups of connecting blocks 35, a plurality of groups of cleaning ports 37 are fixedly arranged on the inner side of the movable ring 36, a circular ring 38 is fixedly connected to the inner side of the movable cylinder 34, a plurality of groups of cleaning strips 39 are fixedly arranged on the inner side of the circular ring 38, a circular block 310 is fixedly arranged on the inner side of the circular ring 38 near the lower side, and a control groove 311 is provided on the outer side of the piston rod 2 corresponding to the circular block 310.

[0023] In this embodiment, the fixed sleeve 31, the connecting tube 32, the movable cylinder 34, the connecting block 35, the movable ring 36, and the cleaning port 37 are connected to each other. The connecting tube 32 is threadedly connected to the cover body 33. The movable cylinder 34 and several groups of connecting blocks 35 are an integrated structure. The movable cylinder 34 is limited and movable on the inner side of the cover body 33. Several groups of connecting blocks 35 are evenly arranged in a circle. Several groups of cleaning ports 37 are evenly arranged in a circle. The water outlets of several groups of cleaning ports 37 are opposite to the piston rod 2. Several groups of cleaning strips 39 are made of wear-resistant silicone material. Several groups of cleaning strips 39 are in contact with the piston rod 2. The round block 310 is limited and slidably arranged on the inner side of the control groove 311. The round block 310 is adapted to the control groove 311.

[0024] Specifically, first, the cover 33 is rotated and unscrewed to connect the connecting pipe 32 with the cleaning liquid pipeline. When the oil cylinder body 1 is working, the piston rod 2 is driven to extend and retract forward and backward, and then the round block 310 is limited to slide in the inner position of the control groove 311, so that the round ring 38 and the movable cylinder 34 are rotated according to the round block 310, and the movable cylinder 34 drives several groups of connecting blocks 35 and the movable ring 36 fixedly connected thereto to rotate, so that the several groups of cleaning ports 37 evenly spray the cleaning liquid on the outside of the piston rod 2 for subsequent deep cleaning. At the same time, the movable cylinder 34 drives the ring 38 and several groups of cleaning strips 39 to rotate, so that the several groups of cleaning strips 39 rotate and wipe the piston rod 2 sprayed with the cleaning liquid. , realizing automatic cleaning of the corresponding piston rod 2 at multiple angles without dead angles, saving time and effort, and preventing more impurities from being adsorbed on the outside of the piston rod 2 when it is extended and retracted, thereby preventing the impurities carried by the piston rod 2 during the contraction process from being blocked by the seal in the guide sleeve and accumulated outside the oil cylinder, thereby avoiding damage to the seal due to the accumulation of impurities, and improving the service life of the oil-displacing cylinder body 1. In addition, when the products produced by the die-casting machine cannot contact the cleaning liquid, the connecting pipe 32 is disconnected from the cleaning liquid pipeline, and the cover body 33 is used to seal it, and then only a few groups of cleaning strips 39 are used to clean the outside of the piston rod 2, so that there is no need to close the oil-displacing cylinder body 1, and it can be directly cleaned in real time when the die-casting machine is working, thereby improving the working efficiency of the die-casting machine.

[0025] Working principle:

[0026] When in use, first unscrew the cover 33 by rotating it, so that the connecting pipe 32 is connected to the cleaning liquid pipeline. When the oil-displacing cylinder body 1 is working, the piston rod 2 is driven to extend and retract forward and backward, and then the round block 310 is limited to slide in the inner position of the control groove 311, so that the round ring 38 and the movable cylinder 34 are rotated according to the round block 310, and the movable cylinder 34 drives several groups of connecting blocks 35 and the movable ring 36 fixedly connected thereto to rotate, so that the several groups of cleaning ports 37 evenly spray the cleaning liquid on the outside of the piston rod 2 for subsequent deep cleaning. At the same time, the movable cylinder 34 drives the ring 38 and several groups of cleaning strips 39 to rotate, so that the several groups of cleaning strips 39 rotate and wipe the piston rod 2 sprayed with the cleaning liquid. , realizing automatic cleaning of the corresponding piston rod 2 at multiple angles without dead angles, saving time and effort, and preventing more impurities from being adsorbed on the outside of the piston rod 2 when it is extended and retracted, thereby preventing the impurities carried by the piston rod 2 during the contraction process from being blocked by the seal in the guide sleeve and accumulated outside the oil cylinder, thereby avoiding damage to the seal due to the accumulation of impurities, and improving the service life of the oil-displacing cylinder body 1. In addition, when the products produced by the die-casting machine cannot contact the cleaning liquid, the connecting pipe 32 is disconnected from the cleaning liquid pipeline, and the cover body 33 is used to seal it, and then only a few groups of cleaning strips 39 are used to clean the outside of the piston rod 2, so that there is no need to close the oil-displacing cylinder body 1, and it can be directly cleaned in real time when the die-casting machine is working, thereby improving the working efficiency of the die-casting machine.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An oil-displacing cylinder for a die-casting machine, comprising an oil-displacing cylinder body (1), characterized in that: A piston rod (2) is fixedly arranged on the front side of the oil-displacing cylinder body (1); a cleaning mechanism (3) is arranged on the front side of the oil-displacing cylinder body (1) near the outer side of the piston rod (2); the cleaning mechanism (3) comprises a fixed sleeve (31) fixedly arranged on the front side of the oil-displacing cylinder body (1) near the outer side of the piston rod (2); a connecting pipe (32) is fixedly connected to the outer side of the fixed sleeve (31); a cover body (33) is movably connected to one side of the connecting pipe (32); a movable sleeve (34) is movably arranged on the inner side of the fixed sleeve (31); the movable sleeve (34) is movably connected to the inner side of the fixed sleeve (31); A plurality of connection blocks (35) are fixedly connected to the front side of the plurality of connection blocks (35), a movable ring (36) is fixedly provided on the front side of the plurality of connection blocks (35), a plurality of cleaning ports (37) are fixedly provided on the inner side of the movable ring (36), a circular ring (38) is fixedly connected to the inner side of the movable cylinder (34), a plurality of cleaning strips (39) are fixedly provided on the inner side of the circular ring (38), a circular block (310) is fixedly provided on the inner side of the circular ring (38) near the lower side, and a control groove (311) is provided on the outer side of the piston rod (2) corresponding to the position of the circular block (310).

2. The oil cylinder for a die casting machine according to claim 1, characterized in that: The fixed sleeve (31), the connecting pipe (32), the movable sleeve (34), the connecting block (35), the movable ring (36), and the cleaning port (37) are connected to each other; the connecting pipe (32) and the cover body (33) are threadedly connected; and the movable sleeve (34) and the plurality of connecting blocks (35) are integrally structured.

3. The oil cylinder for a die-casting machine according to claim 1, characterized in that: The movable cylinder (34) is disposed on the inner side of the cover body (33) in a limited and movable manner, and a plurality of groups of connecting blocks (35) are evenly arranged in a circular shape.

4. The oil cylinder for a die casting machine according to claim 1, characterized in that: The plurality of groups of cleaning ports (37) are evenly arranged in a circular shape, and the water outlets of the plurality of groups of cleaning ports (37) are all opposite to the piston rod (2).

5. The oil cylinder for a die casting machine according to claim 1, characterized in that: Several groups of the cleaning strips (39) are made of wear-resistant silicone material, and several groups of the cleaning strips (39) are in close contact with the piston rod (2).

6. The oil cylinder for a die casting machine according to claim 1, characterized in that: The round block (310) is limitedly slidably arranged on the inner side of the control groove (311), and the round block (310) is adapted to the control groove (311).

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