Safety device for ejector rod of pressing machine

Abstract

The utility model relates to the technical field of presses, in particular to a press ejector rod safety device which comprises a platform. Connecting plates are mounted on the left outer wall and the right outer wall of the platform; a mounting seat is fixed to the top of the connecting plate, an air cylinder is mounted at the top of the mounting seat, a piston end is arranged at one end of the air cylinder, and a connecting seat is fixed to one end of the piston end; a supporting rod is fixed to the top of the connecting base, the connecting plate is connected to the left outer wall and the right outer wall of the platform through fixing bolts, two threaded holes are symmetrically formed in the top of the connecting base, and threaded rods are connected into the two threaded holes in a threaded mode. The air cylinder can drive the connecting base to move through the piston end, when the connecting base and the supporting rod on the top of the connecting base are located at the bottom of the press, the press can be limited, the situation that when an operator operates improperly or the press is damaged, the press suddenly descends to hurt workers is avoided, and the overall safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, and specifically relates to a safety device for the ejector rod of a press. Background Art

[0002] A press is short for a mechanical press, a hydraulic press, or an oil press. A press refers to a forming machine used for forming industrial products by pressure, generally using a hydraulic cylinder, so it is also called an oil press. In the building materials industry, a press is short for a brick press, and presses are further divided into manual brick presses and automatic hydraulic brick presses.

[0003] Since during the operation of the press, workers need to frequently load and unload the press. If the operator operates improperly, the press may cause harm to the workers. And if the press malfunctions and suddenly drops, it will also cause harm to the workers, resulting in relatively low overall safety.

[0004] Therefore, a safety device for the ejector rod of a press is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety device for the ejector rod of a press.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A safety device for the ejector rod of a press, comprising:

[0008] A platform;

[0009] Connecting plates are installed on the left and right outer walls of the platform;

[0010] An installation seat is fixed on the top of the connecting plate, a cylinder is installed on the top of the installation seat, a piston end is arranged at one end of the cylinder, and a connecting seat is fixed at one end of the piston end;

[0011] A support rod is fixed on the top of the connecting seat.

[0012] Preferably, the connecting plates are connected to the left and right outer walls of the platform through fixing bolts.

[0013] Preferably, two threaded holes are symmetrically opened on the top of the connecting seat, and threaded rods are threadedly connected in both of the two threaded holes;

[0014] A rotating shaft is fixed on the top of the threaded rod, and a fixing plate that abuts against the top of the platform is fixed at the bottom of the threaded rod.

[0015] Preferably, a connecting sleeve is fixed on the outer wall of the support rod, a connecting block is fixed on the outer wall of the connecting sleeve, a movable groove is opened at one end of the connecting block, and a support bar is movably connected in the movable groove.

[0016] Preferably, the support bar is movably connected inside the movable slot through a movable pin.

[0017] Preferably, a fixing bar located at the top of the platform is fixed at one end of the support bar;

[0018] A first clamping hole is formed at the top of the fixing bar, a second clamping hole is formed at the top of the platform, and a fixing pin is clamped inside the first clamping hole and the second clamping hole.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] When loading and unloading the press in the present utility model, by starting the cylinder, the cylinder will drive the connecting seat to move through the piston end. When the connecting seat and the support rod on its top are located at the bottom of the press, the press can be limited, avoiding injury to workers caused by the sudden descent of the press when the operator operates improperly or the press is damaged. The overall safety is relatively high;

[0021] And by limiting the press, when the press is reset, it does not need to be fully reset, the rising height of the press is reduced, the rising time is reduced, and the production efficiency is improved.

[0022] In the present utility model, by rotating the rotating shaft, the rotating shaft will drive the threaded rod to move downward in the threaded hole. After the fixing plate at the bottom of the threaded rod abuts against the platform, the piston end can be supported, avoiding deformation or breakage of the piston end due to excessive pressure, thereby improving the working efficiency and service life of the piston end.

[0023] In the present utility model, a connecting sleeve is fixed on the outer wall of the support rod, a connecting block is fixed on the outer wall of the connecting sleeve, a movable slot is formed at one end of the connecting block, a support bar is movably connected inside the movable slot, and then the fixing pin is clamped inside the first clamping hole and the second clamping hole, so as to fix the support bar. Under the action of the support bar, the support rod can be supported assistantly, improving the compressive capacity and stability of the support rod, and further ensuring the safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0025] Figure 2 is of the present utility model Figure 1 an enlarged view of A in;

[0026] Figure 3 is a schematic diagram of the support bar structure of the present utility model;

[0027] Figure 4 is a schematic diagram of the second clamping hole structure of the present utility model.

[0028] In the figure: 1, platform; 2, connecting plate; 3, mounting seat; 4, cylinder; 5, piston end; 6, fixing pin; 7, connecting seat; 8, support rod; 9, fixing bolt; 10, threaded hole; 11, threaded rod; 12, rotating shaft; 13, fixing plate; 14, connecting sleeve; 15, connecting block; 16, moving slot; 17, support bar; 18, moving pin; 19, fixing bar; 20, first clamping hole; 21, second clamping hole. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific implementation modes.

[0031] Embodiment 1:

[0032] Please refer to Figure 1 , 2 , the present invention provides a technical solution: To achieve the above purpose, the present invention provides the following technical solution: A safety device for a press ejector rod, comprising: a platform 1; connecting plates 2 are installed on the left and right outer walls of the platform 1; a mounting seat 3 is fixed on the top of the connecting plate 2, a cylinder 4 is installed on the top of the mounting seat 3, a piston end 5 is arranged at one end of the cylinder 4, and a connecting seat 7 is fixed at one end of the piston end 5; a support rod 8 is fixed on the top of the connecting seat 7, the connecting plate 2 is connected to the left and right outer walls of the platform 1 through fixing bolts 9, two threaded holes 10 are symmetrically opened on the top of the connecting seat 7, and threaded rods 11 are threadedly connected in both of the two threaded holes 10; a rotating shaft 12 is fixed at the top of the threaded rod 11, and a fixing plate 13 that abuts against the top of the platform 1 is fixed at the bottom of the threaded rod 11.

[0033] Specifically, when the present invention is used for loading and unloading the press, by starting the cylinder 4, the cylinder 4 will drive the connecting seat 7 to move through the piston end 5. When the connecting seat 7 and the support rod 8 on its top are located at the bottom of the press, the press can be limited, avoiding the press suddenly descending to cause harm to workers when the operator operates improperly or the press is damaged, and the overall safety is relatively high;

[0034] And by limiting the press, when the press is reset, it does not need to be fully reset, the rising height of the press is reduced, the rising time is reduced, and the production efficiency is improved.

[0035] By rotating the rotating shaft 12, the rotating shaft 12 will drive the threaded rod 11 to move downward in the threaded hole 10. After the fixing plate 13 at the bottom of the threaded rod 11 abuts against the platform 1, the piston end 5 can be supported, preventing the piston end 5 from being deformed or broken due to excessive pressure, thereby improving the working efficiency and service life of the piston end 5.

[0036] Embodiment 2:

[0037] Please refer to Figure 1 、 3 As shown in Figures 3 and 4, the present utility model provides a technical solution: a safety device for a press ejector rod. A connecting sleeve 14 is fixed to the outer wall of the support rod 8, a connecting block 15 is fixed to the outer wall of the connecting sleeve 14, a movable groove 16 is formed at one end of the connecting block 15, a support bar 17 is movably connected in the movable groove 16, the support bar 17 is movably connected inside the movable groove 16 through a movable pin 18, and a fixing bar 19 located at the top of the platform 1 is fixed to one end of the support bar 17; a first clamping hole 20 is formed at the top of the fixing bar 19, a second clamping hole 21 is formed at the top of the platform 1, and a fixing pin 6 is clamped inside the first clamping hole 20 and the second clamping hole 21.

[0038] Specifically, in the present utility model, a connecting sleeve 14 is fixed to the outer wall of the support rod 8, a connecting block 15 is fixed to the outer wall of the connecting sleeve 14, a movable groove 16 is formed at one end of the connecting block 15, a support bar 17 is movably connected in the movable groove 16, and then the fixing pin 6 is clamped inside the first clamping hole 20 and the second clamping hole 21, so as to fix the support bar 17. Under the action of the support bar 17, the support rod 8 can be supported, improving the compressive capacity and stability of the support rod 8, and further ensuring the safety of workers.

[0039] Working principle:

[0040] First, when loading and unloading the press, by starting the cylinder 4, the cylinder 4 will drive the connecting seat 7 to move through the piston end 5. When the connecting seat 7 and the support rod 8 on its top are located at the bottom of the press, the press can be limited, preventing the press from suddenly descending and causing harm to workers in case of improper operation by the operator or damage to the press. The overall safety is relatively high;

[0041] And by limiting the press, when the press is reset, it does not need to be fully reset, the rising height of the press is reduced, the rising time is reduced, and the production efficiency is improved;

[0042] By rotating the rotating shaft 12, the rotating shaft 12 will drive the threaded rod 11 to move downward in the threaded hole 10. After the fixing plate 13 at the bottom of the threaded rod 11 abuts against the platform 1, the piston end 5 can be supported, preventing the piston end 5 from being deformed or broken due to excessive pressure, thereby improving the working efficiency and service life of the piston end 5;

[0043] Secondly, a connecting sleeve 14 is fixed to the outer wall of the support rod 8, a connecting block 15 is fixed to the outer wall of the connecting sleeve 14, a movable groove 16 is formed at one end of the connecting block 15, a support bar 17 is movably connected in the movable groove 16, and then the fixing pin 6 is clamped into the first clamping hole 20 and the second clamping hole 21, so that the support bar 17 can be fixed. Under the action of the support bar 17, the support rod 8 can be supported assistantly, improving the compressive capacity and stability of the support rod 8 and further ensuring the safety of workers.

[0044] It should be noted that before the press works, the rotating shaft 12 needs to be rotated in advance. The rotating shaft 12 drives the threaded rod 11 to move upward in the threaded hole 10. After the fixed plate 13 at the bottom of the threaded rod 11 is not in contact with the platform 1, the fixing pin 6 is taken out from the first clamping hole 20 and the second clamping hole 21, and then the air cylinder 4 is started. The air cylinder 4 drives the connecting seat 7 and the support column to move through the piston end 5. After the connecting seat 7 and the support column are not located at the bottom of the press, the press can be started to work.

[0045] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press ram safety device, characterized in that: include: Platform (1); The left and right outer walls of the platform (1) are both provided with connecting plates (2); A mounting seat (3) is fixed on the top of the connecting plate (2), a cylinder (4) is installed on the top of the mounting seat (3), one end of the cylinder (4) is provided with a piston end (5), and one end of the piston end (5) is fixed with a connecting seat (7); A support rod (8) is fixed on the top of the connecting seat (7).

2. A press top rod safety device according to claim 1, characterized in that: The connecting plate (2) is connected to the left and right outer walls of the platform (1) via fixing bolts (9).

3. A press top rod safety device according to claim 1, characterized in that: The top of the connecting seat (7) is symmetrically provided with two threaded holes (10), and threaded rods (11) are threadedly connected in the two threaded holes (10); A rotating shaft (12) is fixed to the top of the threaded rod (11), and a fixing plate (13) abutting against the top of the platform (1) is fixed to the bottom of the threaded rod (11).

4. A press top rod safety device according to claim 1, characterized in that: A connecting sleeve (14) is fixed on the outer wall of the support rod (8), a connecting block (15) is fixed on the outer wall of the connecting sleeve (14), a movable groove (16) is formed at one end of the connecting block (15), and a supporting bar (17) is movably connected in the movable groove (16).

5. A press top rod safety device according to claim 4, characterized in that: The support bar (17) is movably connected inside the movable groove (16) via a movable pin (18).

6. A press top rod safety device according to claim 5, characterized in that: A fixing bar (19) located on the top of the platform (1) is fixed to one end of the supporting bar (17); A first clamping hole (20) is provided on the top of the fixing strip (19), and a second clamping hole (21) is provided on the top of the platform (1). Fixing pins (6) are clamped inside the first clamping hole (20) and the second clamping hole (21).

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