Rocker arm type structure for preventing sliding block of press machine from falling
By designing a rocker-type structure on the press and limiting the rocker-arm movement with hooks and springs, the safety hazards of slider fall are solved, and the safety and operation convenience of the press are improved.
Patent Information
- Application Number
- CN202421735897.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The existing press slider is prone to accidentally slide during maintenance, resulting in safety accidents, and the safety plug is bulky and difficult to move.
A rocker arm-type structure is designed, including a rocker arm movement mechanism, hook and safety bolt. Through the cooperation of the hook and the pulling spring, the movement of the rocker arm is restricted, the slider is prevented from falling, and the start and stop of the motor is controlled through the safety switch.
It improves the safety performance of the press, reduces the weight of the safety bolt and the difficulty of handling, and ensures the stability and safety of the slider during maintenance.
Smart Images
Figure CN223199636U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rocker arm structure for preventing a slide block of a press from falling. Background Art
[0002] A press uses a motor to drive the working mechanism through a transmission mechanism, applying a process force to the workpiece. The transmission mechanism can be a belt drive or a gear reduction mechanism. The working mechanism can be a screw mechanism, a crank-connecting rod mechanism, or a hydraulic cylinder. Presses are categorized into three main types: screw presses, crank presses, and hydraulic presses. Crank presses are also called mechanical presses.
[0003] Screw presses have no fixed bottom dead center. For larger die forgings, they can be formed using multiple blows, either single or continuous, and inching. The impact force is related to the amount of deformation in the workpiece: large deformation results in low impact force, while small deformation (e.g., cold strike) results in high impact force. In these respects, they are similar to forging hammers. However, their impact force is contained within the frame, resulting in smooth operation, much less vibration than with forging hammers, and a less extensive foundation is not required.
[0004] As the industries served by presses become more and more extensive, from small household appliances to locomotive coverings, the use of presses is very wide, and people are paying more and more attention to the safe use performance of presses.
[0005] The safety bolt is used to prevent the tool holder from accidentally sliding down during punch press maintenance, potentially causing safety or mold accidents. It has a chain connection with the punch press motor start-up function. When the safety bolt is removed, the motor cannot be started. It is welded from round steel, and its strength can support the weight of the entire slider component. However, it is relatively heavy and difficult to move. Utility Model Content
[0006] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a rocker arm structure for preventing a slide block of a press from falling.
[0007] A rocker arm structure for preventing a slide of a press from falling comprises a rocker arm movable mechanism, a hook, and a safety bolt. The rocker arm movable mechanism comprises a first rocker arm, a connecting block, and a second rocker arm. The first rocker arm is connected to a first mounting seat, which is fixed to the side of the press. The first rocker arm is hinged to one end of the connecting block, and the other end of the connecting block is hinged to one end of the second rocker arm. The other end of the second rocker arm is equipped with a safety bolt.
[0008] The hook is movably arranged in the telescopic cylinder, a tension spring is provided between the bottom of the hook and the bottom of the telescopic cylinder, the bottom of the telescopic cylinder is hinged on the second mounting seat, the front end of the hook is a U-shaped bending mechanism, the second rocker arm is a channel steel, and the hook is used to hook the second rocker arm to limit it.
[0009] Preferably, a safety switch is further provided on the side of the press, and the safety switch is used to sense the support column and control the power off and on of the motor, and the motor controls the operation of the shearing machine.
[0010] Preferably, the safety bolt includes a movable column, a baffle is provided on the top of the movable column, a connecting sleeve with an annular structure is provided at the other end of the second rocker arm, the movable column is movably inserted into the connecting sleeve, and a spring is provided on the outer wall sleeve of the movable column, and the two ends of the spring respectively abut against the lower end surface of the baffle and the upper end surface of the connecting sleeve.
[0011] Beneficial effect: Compared with the prior art, the utility model limits the movement of the rocker arm through a telescopic hook structure. When the safety bolt is not needed, the rocker arm is folded and the second rocker arm is hooked with the hook. The connection between the hook and the second rocker arm is locked by the tension generated by the tension spring to prevent the hook from falling off, thereby improving the safety performance of the safety bolt. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of a rocker-type structure used to prevent the slide of a press from falling;
[0013] Figure 2 This is a diagram of the internal structure of the hook;
[0014] Figure 3 This is a schematic diagram of the installation of the safety bolt on the press;
[0015] In the figure, 1. baffle, 2. spring, 3. connecting sleeve, 4. movable column, 5. safety switch, 6. second mounting seat, 7. hook, 8. first mounting seat, 9. first rocker arm, 10. connecting block, 11. second rocker arm, 12. telescopic cylinder, 13. tension spring, 14. press, 15. slider, 16. pedestal. DETAILED DESCRIPTION
[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.
[0017] like Figure 1-3 As shown, baffle 1, spring 2, connecting sleeve 3, movable column 4, safety switch 5, second mounting base 6, hook 7, first mounting base 8, first rocker arm 9, connecting block 10, second rocker arm 11, telescopic cylinder 12, tension spring 13, press 14, slider 15, pedestal 16;
[0018] A rocker arm structure for preventing a press slide from falling, comprising a rocker arm movable mechanism, a hook 7, and a safety bolt. The rocker arm movable mechanism comprises a first rocker arm 9, a connecting block 10, and a second rocker arm 11. The first rocker arm 9 is connected to a first mounting base 8, which is fixed to the side of a press 14. The first rocker arm 9 is hinged to one end of the connecting block 10, and the other end of the connecting block 10 is hinged to one end of the second rocker arm 11. The other end of the second rocker arm 11 is equipped with a safety bolt.
[0019] The hook 7 is movably arranged in the telescopic cylinder 12. A tension spring 13 is provided between the bottom of the hook 7 and the bottom of the telescopic cylinder 12. The bottom of the telescopic cylinder 12 is hinged to the second mounting seat 6. The front end of the hook 7 is a U-shaped bending mechanism. The second rocker arm 11 is a channel steel. The hook 7 is used to hook the second rocker arm 11 to limit it.
[0020] In this embodiment, a safety switch 5 is further provided on the side of the press 14. The safety switch 5 is used to sense the support column and control the power off and on of the motor, which controls the operation of the shearing machine.
[0021] In this embodiment, the safety bolt includes a movable column 4, a baffle 1 is provided on the top of the movable column 4, a connecting sleeve 3 with an annular structure is provided at the other end of the second rocker arm 11, the movable column 4 is movably inserted into the connecting sleeve 3, and a spring 2 is provided on the outer wall of the movable column 4. The two ends of the spring 2 are respectively against the lower end surface of the baffle 1 and the upper end surface of the connecting sleeve 3. Specifically, the spring 2 plays a role in supporting the movable column 4 so that the movable column 4 is at an appropriate height and can move smoothly between the slider 15 and the base 16 with the movement of the rocker arm without interference. The other spring 2 can also play a buffering role.
[0022] Instructions for use: The press 14 includes a slider 15 and a pedestal 16. When working, the object to be processed is placed on the table of the pedestal 16, and the object is processed by the impact force generated by the sliding of the slider 15. When repairing the machine, the support column is driven by the rocker arm to rotate between the slider 15 and the table to prevent the slider 15 from falling; when the machine is working normally, there is no need to use the safety bolt, fold the rocker arm movable mechanism, hook the second rocker arm 11 with the hook 7, and lock the connection between the hook 7 and the second rocker arm 11 through the tension generated by the tension spring 13 to prevent the hook 7 from falling off, so that the hook 7 hooks the edge of the rocker arm, so that the rocker arm cannot rotate. When repairing, pull the hook 7 outward to disengage the hook 7 from the rocker arm, and then rotate it along the hinge to release the hook 7 so that the rocker arm can rotate freely.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A rocker arm structure for preventing a press slide from falling, characterized in that: It includes a rocker arm movable mechanism, a hook, and a safety bolt. The rocker arm movable mechanism includes a first rocker arm, a connecting block, and a second rocker arm. The first rocker arm is connected to a first mounting seat, and the first mounting seat is fixed to the side of the press. The first rocker arm is hinged to one end of the connecting block, and the other end of the connecting block is hinged to one end of the second rocker arm. The other end of the second rocker arm is installed with a safety bolt. The hook is movably inserted into the telescopic cylinder, a tension spring is provided between the bottom of the hook and the bottom of the telescopic cylinder, the bottom of the telescopic cylinder is hinged on the second mounting seat, the front end of the hook is a U-shaped bending mechanism, the second rocker arm is a channel steel, and the hook is used to hook the second rocker arm to limit it.
2. The rocker arm structure for preventing the slide of a press machine from falling according to claim 1, characterized in that: A safety switch is also provided on the side of the press, which is used to sense the support column and control the power off and on of the motor, and the motor controls the operation of the shearing machine.
3. The rocker arm structure for preventing the slide of a press machine from falling according to claim 1, characterized in that: The safety bolt includes a movable column, a baffle is provided on the top of the movable column, a connecting sleeve with an annular structure is provided at the other end of the second rocker arm, the movable column is movably inserted into the connecting sleeve, and a spring is provided on the outer wall of the movable column, and the two ends of the spring respectively abut against the lower end surface of the baffle and the upper end surface of the connecting sleeve.