Mechanical safety lock device of two-plate machine
By designing two sets of locking devices in the second plate machine with racks, the speed reduction and braking of high-speed racks are achieved, which solves the problem of easy damage to existing mechanical safety devices and improves the safety and use efficiency of the equipment.
Patent Information
- Application Number
- CN202420608242.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The mechanical safety devices of existing two-plate injection molding machines are relatively single, and require a large downforce during braking, which is easy to damage and shorten the use time.
A mechanical safety lock device for a two-plate machine is designed, using two sets of locking devices (pre-locking components and safety lock components) combined with racks, and the high-speed rack is reduced through the pre-locking components, and then the safety lock component knocks the groove block into the groove to realize braking control.
It effectively solves the safety problems of the second plate machine during work, ensures the normal use and locking of the equipment, improves work efficiency, and extends the use time of the mechanical safety lock device.
Smart Images
Figure CN222571518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical safety lock devices, in particular to a mechanical safety lock device for a two-platen machine. Background Art
[0002] At present, the safety protection measures for domestic two-platen injection molding machines generally only have electrical and hydraulic safety protection, but electrical and hydraulic protection cannot fully guarantee the safety of work during use. When the electronic components in the equipment safety module fail or fail, people cannot find and replace them in time. In this case, the possibility of harm to personnel during the equipment production process is greatly increased. Mechanical safety protection is the most direct and reliable protection method. At present, the safety certification agencies in developed countries require that the two-platen injection molding machine itself must be equipped with mechanical safety devices, and at the same time cooperate with electrical and hydraulic safety modules to jointly ensure the safety of operators. The mechanical safety device of the existing two-platen injection molding machine equipment is relatively simple. When braking the two-platen injection molding machine, it needs to use a large downward force, which is easy to cause damage to the braking device and shorten the use time of the mechanical safety device. To this end, a mechanical safety lock device for a two-platen machine is proposed. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In order to solve at least one aspect of the above problems, the utility model first provides a mechanical safety lock device for a two-platen machine. The mechanical safety lock device uses two sets of locking devices for auxiliary braking, which can quickly lock the rack in the running state and control the rack to stop running, thereby ensuring the safe use of the two-platen machine.
[0005] (II) Technical solution
[0006] In order to solve the technical problem, the utility model provides a mechanical safety lock device for a two-platen machine, including a rack, a pre-locking assembly and a safety lock assembly, the rack is fixedly arranged on the frame, a rear vertical plate is provided behind the frame surface end where the rack is located, a limiting cover plate is provided on the top of the rear vertical plate, a fixed setting frame is provided at the front end of the bottom of the rear vertical plate, a pre-locking fixing plate is provided at the left end of the fixed setting frame panel, a pre-locking assembly is provided at the front end of the pre-locking fixing plate, a locking fixing plate is provided on the right side of the pre-locking fixing plate, a safety lock assembly is provided at the front end of the locking fixing plate, and the safety lock assembly is arranged above the rack.
[0007] As a preferred solution of the utility model, the pre-locking component comprises a mounting plate, a fixing column is provided on the top of the mounting plate, an electrical control box is provided on the top of the front end of the fixing column, a front bracket is provided below the electrical control box, a buffer card connector is provided on the front end of the front bracket, a connecting seat is provided on the front end of the buffer card connector, an anti-slip pad is provided at the center of the bottom of the connecting seat, a telescopic electric cylinder is provided at the bottom of the anti-slip pad, a hinged seat is provided at the bottom of the telescopic electric cylinder, a connecting frame is provided at the bottom of the hinged seat, a buffer gasket is provided at the bottom of the connecting frame, an anti-slip fixing frame is provided parallel to the front end of the connecting frame, an extension plate is provided at the front end of the anti-slip fixing frame, two groups of pre-locking nails are provided at the bottom of the extension plate, and a displacement sensor is provided at the rear end of the pre-locking nail.
[0008] As a preferred solution of the utility model, the safety lock assembly includes two mounting plates, two fixing columns are provided on the top of the two mounting plates, two electrical control boxes are provided on the top of the front end of the two fixing columns, two front brackets are provided below the two electrical control boxes, a connecting seat fixing frame is provided on the front end of the two front brackets, a cylinder mounting seat is provided on the top of the connecting seat fixing frame, a cylinder limiting frame is provided on the top of the cylinder mounting seat, a cylinder body is provided in the center of the cylinder limiting frame, a cylinder cover plate is provided on the top of the cylinder body, and a tooth groove collision block is provided in the inner cavity of the connecting seat fixing frame.
[0009] Furthermore, a through hole 1 is respectively provided at the corner of the edge of the oil cylinder cover plate, and a limiting sleeve rod is respectively provided in the through hole 1, and the bottom of the limiting sleeve rod is arranged in the oil cylinder limiting frame.
[0010] Furthermore, a detection frame is provided below the left end of the connection seat, and an ultrasonic ranging sensor is provided on the left side of the detection frame.
[0011] Furthermore, the bottom of the pre-locking staple is tilted 15 degrees to the left.
[0012] Furthermore, a plurality of tooth grooves are evenly arranged on the surface of the rack, and two groups of buffer check grooves are respectively arranged on the plane wall plates of each group of tooth grooves, and buffer rubber strips are arranged in the buffer check grooves.
[0013] Furthermore, in a stationary state, the height of the tooth groove impact block is set one centimeter higher than the tooth groove.
[0014] (III) Beneficial effects
[0015] 1. The utility model provides a mechanical safety lock device for a two-platen machine, which sets the mechanical safety lock device and the rack on the same plane of the frame, and uses the mechanical safety lock device to mechanically lock the rack in a working state, effectively solving the safety problem of the two-platen machine when working, ensuring the normal use and locking of the two-platen machine, and improving its working efficiency. This scheme sets two sets of locking devices, including a pre-locking component and a safety lock component. The pre-locking component first contacts the rack to slow down the high-speed running rack, and then cooperates with the safety lock component to knock the tooth groove collision block into the tooth groove to achieve braking control of the rack, ensuring the safe use of the two-platen machine. The mechanical safety lock is a mechanical safety protection mechanism with high reliability, simple structure, and convenient disassembly and assembly. It can be well combined with the use of the two-platen machine, thereby improving the practicality and safety of the two-platen machine.
[0016] 2. The utility model arranges a distance sensor and a displacement sensor on the pre-locking device, which can quickly determine the distance between the tooth groove and the pre-locking component and detect the moving distance of the pre-locking pin in the buffer check groove, so as to facilitate the control end to determine whether to knock the tooth groove block into the tooth groove, thereby improving its working accuracy. In addition, the pre-locking device can remove part of the inertial impact force of the rack operation, reduce the impact and wear of the rack braking on the tooth groove block, and effectively extend the service life of the mechanical safety lock device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the installation structure of the mechanical safety lock device of an embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of a mechanical safety lock device according to an embodiment of the utility model;
[0019] Figure 3 This is a schematic structural diagram of region A of a mechanical safety lock device according to an embodiment of the present utility model;
[0020] Figure 4 This is a schematic structural diagram of region B of the mechanical safety lock device according to an embodiment of the present utility model;
[0021] Figure 5 Schematic diagram of the locked state of the mechanical safety lock device according to an embodiment of the present utility model.
[0022] Description of reference numerals:
[0023] 1 is a rack, 101 is a tooth groove, 102 is a buffer check groove, 2 is a rear vertical plate, 3 is a limit cover plate, 4 is a fixed setting frame, 5 is a pre-locking fixed plate, 6 is a locking fixed plate, 7 is a pre-locking component, 71 is a mounting plate, 72 is a fixed column, 73 is an electrical control box, 74 is a front bracket, 75 is a buffer card seat, 76 is a connecting seat, 77 is an anti-drop pad, 78 is a telescopic electric cylinder, 79 is an articulated seat, 710 is a connecting frame, 711 is a buffer gasket, 712 713 is an extension plate, 714 is a pre-locking staple, 715 is a displacement sensor, 716 is a detection frame, 717 is an ultrasonic ranging sensor, 8 is a safety lock assembly, 81 is a second mounting plate, 82 is a second fixed column, 83 is a second electrical control box, 84 is a second front bracket, 85 is a cylinder cover plate, 86 is a cylinder body, 87 is a limit sleeve rod, 88 is a cylinder limit frame, 89 is a cylinder mounting seat, 810 is a connecting seat fixing frame, and 811 is a tooth groove collision block. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] See also Figure 1-5The embodiment of the utility model provides a mechanical safety lock device of a two-plate machine, including a rack 1, a pre-locking component 7 and a safety lock component 8. The rack 1 is fixedly arranged on the frame, and a rear vertical plate 2 is arranged at the rear of the frame surface end where the rack 1 is located, and a limiting cover plate 3 is arranged on the top of the rear vertical plate 2. A fixed setting frame 4 is arranged at the front end of the bottom of the rear vertical plate 2. A pre-locking fixing plate 5 is arranged at the left end of the panel of the fixed setting frame 4, and a pre-locking fixing plate 5 is arranged at the front end of the pre-locking fixing plate 5. A locking fixing plate 6 is arranged on the right side of the pre-locking fixing plate 5. A safety lock component 8 is arranged at the front end of the locking fixing plate 6. The safety lock component 8 is arranged above the rack 1, and the frame ensures the support and fixed setting of the entire mechanical safety lock device by fixing the installation of the rear vertical plate 2. The top of the rear vertical plate 2 supports the setting of the limiting cover plate 3, and the front end of the limiting cover plate 3 abuts against the rear end of the pre-locking component 7 and the safety lock component 8, so as to ensure the braking support when the mechanical safety lock moves down to lock the rack 1, and ensure the stability and firmness of the use of the mechanical safety lock device. The left side of the front end of the vertical plate 2 is fixed with the pre-locking fixing plate 5 to fix the setting of the main structure of the pre-locking component 7, providing a fixed parallel support for the pre-locking component 7, and the right side of the front end of the rear vertical plate 2 is fixed with the locking fixing plate 6 to fix the setting of the main structure of the safety lock component 8, providing a fixed parallel support for the safety lock component 8. The pre-locking component 7 and the bottom of the safety lock component 8 are connected to the frame panel through the fixed setting frame 4, and the mechanical safety lock component and the rack 1 are set as a whole, which is convenient for the mechanical safety lock device to accurately and stably play its locking role and ensure the performance of the mechanical safety lock. The rack 1 is set at the specified position of the working frame. During the normal working of the rack 1, the mechanical safety lock is in a dormant state. When the rack 1 needs to be locked, a braking signal is given, and the pre-locking component 7 first limits the speed of the rack 1, which is convenient for the safety lock structure 8 to accurately hit the tooth groove collision block 811 into the tooth groove 101, thereby completing the overall accurate and rapid braking of the rack 1 and ensuring the safe use of the mechanical structure.
[0026] See also Figure 2 and Figure 3The pre-locking assembly 7 includes a mounting plate 71, a fixing column 72 is provided on the top of the mounting plate 71, an electrical control box 73 is provided on the top of the front end of the fixing column 72, a front bracket 74 is provided below the electrical control box 73, a buffer card seat 75 is provided on the front end of the front bracket 74, a connecting seat 76 is provided on the front end of the buffer card seat 75, an anti-slip pad 77 is provided at the center of the bottom of the connecting seat 76, a telescopic electric cylinder 78 is provided at the bottom of the anti-slip pad 77, an articulated seat 79 is provided at the bottom of the telescopic electric cylinder 78, a connecting frame 710 is provided at the bottom of the articulated seat 79, a buffer gasket 711 is provided at the bottom of the connecting frame 710, an anti-slip fixing frame 712 is provided parallel to the front end of the connecting frame 710, and an extension plate 713 is provided at the front end of the anti-slip fixing frame 712. Two groups of pre-locking pins 714 are provided at the bottom of the extension plate 713, and a displacement sensor 715 is provided at the rear end of the pre-locking pin 714. The bottom of the pre-locking component 7 is connected to the fixed setting frame 4 by setting a mounting plate 71, and a fixed column 72 is provided to provide a support structure for the entire set of pre-locking devices to ensure that the pre-locking device has sufficient supporting force to limit the speed of the rack 1. The electrical control box 73 provides a circuit connection for the electrical structure of the pre-locking component 7. The fixed column 72 fixes the setting of the buffer card seat 75 through the front bracket 74. The front end of the buffer card seat 75 limits the connection seat 76. The connection seat 76 can be removed from the buffer card seat 75, and the pre-locking structure on the connection seat 76 can be repaired or replaced.
[0027] The connecting seat 76 enhances the stability restriction of the telescopic electric cylinder 78 through the anti-dropping pad 77. The bottom of the telescopic electric cylinder 78 establishes the setting of the connecting frame 710 through the hinge seat 79. The front end of the connecting frame 710 extends out of the anti-dropping fixing frame 712 to ensure the fixed setting of the extension plate 713. The bottom of the extension plate 713 fixes the setting of the pre-locking nail 714 and the displacement sensor 715 to ensure the stability of its installation structure. The bottom of the connecting frame 710 is provided with a buffer gasket 711 to reduce the impact force generated by the downward braking of the pre-locking component and guide it to the surface of the frame, thereby reducing the fixed column 72 and other supporting structures, and can reduce the impact of impact force on the rack panel through its buffering performance, thereby ensuring the safe use of the rack panel. The telescopic electric cylinder 78 can control its extension and retraction according to the electrical signal, and press the pre-locking pin 714 into the anti-reverse slide groove 102 to achieve speed limiting braking of the rack 1. During the movement of the pre-locking pin 714, the displacement sensor 715 is used to detect the moving length of the anti-reverse slide groove 102, and the position of the pre-locking pin 714 and the edge of the tooth groove 101 is judged. The electrical signal controls the pre-locking structure to quickly press down the safety lock assembly to complete the safety locking control of the rack 1.
[0028] See also Figure 2The safety lock assembly 8 includes a mounting plate 81, a fixed column 82 is provided on the top of the mounting plate 81, an electrical control box 83 is provided on the top of the front end of the fixed column 82, a front bracket 84 is provided below the electrical control box 83, a connecting seat fixing frame 810 is provided on the front end of the front bracket 84, a cylinder mounting seat 89 is provided on the top of the connecting seat fixing frame 810, a cylinder limiting frame 88 is provided on the top of the cylinder mounting seat 89, a cylinder body 86 is provided in the center of the cylinder limiting frame 88, a cylinder cover plate 85 is provided on the top of the cylinder body 86, a tooth groove collision block 811 is provided in the inner cavity of the connecting seat fixing frame 810, and the bottom of the safety lock assembly 8 is established through the mounting plate 81 to establish stability with the fixed setting frame 4 The connection ensures that the frame provides structural support for the operation of the safety lock assembly 8. The safety lock assembly 8 is braked and supported by setting a second fixed column 82. The second electrical control box 83 provides circuit connection for the electrical structure of the safety lock assembly 8. The second fixed column 82 fixes the installation of the connecting seat fixing frame 810 through the second front bracket 84. The top of the connecting seat fixing frame 810 fixes the setting of the cylinder mounting seat 89. The top of the cylinder mounting seat 89 fixes the setting of the cylinder body 86 through the cylinder limit frame 88 and the cylinder cover plate 85. A through hole is set in the inner cavity of the cylinder mounting seat 89, and the bottom of the cylinder body 86 extends from the through hole into the connecting seat fixing frame 810 and is fixedly connected to the tooth groove collision block 811.
[0029] A through hole 1 is respectively provided at the corner of the edge of the cylinder cover plate 85, and a limit sleeve rod 87 is respectively provided in the through hole 1. The bottom of the limit sleeve rod 87 is set in the cylinder limit frame 88. The cylinder cover plate 85 and the cylinder limit frame 88 enhance the regulation of the extension and contraction direction of the cylinder body 86 by setting the limit sleeve rod 87 to ensure the directional stability control of the extension and contraction of the cylinder body 86. The cylinder works along the direction of the limit sleeve rod 87 to ensure that it can control the tooth groove impact block 811 to directly impact into the tooth groove 101 vertically downward.
[0030] A detection frame 716 is provided below the left end of the connecting seat 76, and an ultrasonic distance sensor 717 is provided on the left side of the detection frame 716. The ultrasonic distance sensor 717 is fixed by the detection frame 716. The ultrasonic distance sensor 717 detects the distance to the tooth groove 101. When the distance reaches a preset value, the detection signal is transmitted to the electrical control box 73 for braking judgment.
[0031] See also Figure 5 The bottom of the pre-locking pin 714 is tilted 15 degrees to the left. The pre-locking pin 714 is inserted into the buffer check groove 102 and rubs against the buffer check groove 102 to achieve the deceleration braking effect. By tilting the pre-locking pin 714, its deceleration support for the rack 1 can be increased, thereby improving its braking efficiency.
[0032] See also Figure 4A plurality of tooth grooves 101 are evenly arranged on the surface of the rack 1. Two groups of buffer check grooves 102 are respectively arranged on the plane wall plate of each group of tooth grooves 101. Buffer rubber strips are arranged in the buffer check grooves 102. The buffer rubber strips can increase the friction with the pre-locking pin 714 and reduce the wear of the pre-locking pin 714 caused by its friction. The pre-locking device 7 realizes its deceleration control by contacting with the buffer check groove 102. The safety lock assembly 8 quickly hits the tooth groove 101 to realize the braking control of the rack 1, thereby ensuring the practicality of the mechanical safety lock structure.
[0033] In a stationary state, the height of the tooth groove collision block 811 is set one centimeter higher than the tooth groove 101 to prevent the operation of the rack 1 from affecting the static safety of the tooth groove collision block 811.
[0034] The utility model provides a mechanical safety lock device for a two-plate machine, which has a simple structure and few restrictions on installation and use. It is easy to adjust or replace its braking device and can be adapted to the locking of racks of different specifications. While ensuring its mechanical braking safety, it improves the applicability of the mechanical safety lock device. This solution receives the rack running braking demand signal and performs distance measurement on the edge tooth groove of the rack. When the distance between the tooth groove and the pre-locking component 7 reaches the critical point, the pre-locking component 7 quickly presses down the pre-locking pin 714 and inserts the pre-locking pin 714 into the buffer check groove 102, so as to achieve the deceleration effect through friction and oblique support. At this time, the safety lock component 8 is controlled to quickly knock the tooth groove impact block 811 into the tooth groove 101, so as to achieve complete and safe braking of the rack 1 and ensure safe control of the rack stop.
[0035] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A mechanical safety lock device for a two-platen machine, characterized in that: The invention comprises a rack (1), a pre-locking assembly (7) and a safety lock assembly (8), wherein the rack (1) is fixedly arranged on a frame, a rear vertical plate (2) is arranged at the rear of the frame surface end where the rack (1) is located, a limit cover plate (3) is arranged on the top of the rear vertical plate (2), a fixed setting frame (4) is arranged at the front end of the bottom of the rear vertical plate (2), a pre-locking fixing plate (5) is arranged at the left end of the panel of the fixed setting frame (4), a pre-locking fixing plate (7) is arranged at the front end of the pre-locking fixing plate (5), a locking fixing plate (6) is arranged on the right side of the pre-locking fixing plate (5), a safety lock assembly (8) is arranged at the front end of the locking fixing plate (6), and the safety lock assembly (8) is arranged above the rack (1); The pre-locking assembly (7) comprises a mounting plate (71), a fixing column (72) is provided on the top of the mounting plate (71), an electrical control box (73) is provided on the top of the front end of the fixing column (72), a front bracket (74) is provided below the electrical control box (73), a buffer card seat (75) is provided on the front end of the front bracket (74), a connecting seat (76) is provided on the front end of the buffer card seat (75), an anti-slip pad (77) is provided at the bottom center of the connecting seat (76), and the anti-slip pad (77) is provided at the bottom The part is provided with a telescopic electric cylinder (78), the bottom of the telescopic electric cylinder (78) is provided with an articulated seat (79), the bottom of the articulated seat (79) is provided with a connecting frame (710), the bottom of the connecting frame (710) is provided with a buffer gasket (711), the front end of the connecting frame (710) is provided with an anti-slipping fixing frame (712) in parallel, the front end of the anti-slipping fixing frame (712) is provided with an extension plate (713), the bottom of the extension plate (713) is provided with two groups of pre-locking nails (714), and the rear end of the pre-locking nail (714) is provided with a displacement sensor (715); The safety lock assembly (8) comprises a second mounting plate (81), a second fixing column (82) is provided on the top of the second mounting plate (81), an electrical control box (83) is provided on the top of the front end of the second fixing column (82), a second front bracket (84) is provided below the second electrical control box (83), a connecting seat fixing frame (810) is provided on the front end of the second front bracket (84), a cylinder mounting seat (89) is provided on the top of the connecting seat fixing frame (810), a cylinder limiting frame (88) is provided on the top of the cylinder mounting seat (89), a cylinder body (86) is provided in the center of the cylinder limiting frame (88), a cylinder cover plate (85) is provided on the top of the cylinder body (86), and a tooth groove collision block (811) is provided in the inner cavity of the connecting seat fixing frame (810).
2. A mechanical safety lock device for a two-trigger machine according to claim 1, characterized in that: The oil cylinder cover plate (85) is provided with through holes one at the corners of the edges, and the through holes one are provided with limiting sleeve rods (87) respectively, and the bottom of the limiting sleeve rods (87) is arranged in the oil cylinder limiting frame (88).
3. A mechanical safety lock device for a two-trigger machine according to claim 1, characterized in that: A detection frame (716) is provided below the left end of the connection seat (76), and an ultrasonic distance measuring sensor (717) is provided on the left side of the detection frame (716).
4. A mechanical safety lock device for a two-trigger machine according to claim 1, characterized in that: The bottom of the pre-locking staple (714) is tilted 15 degrees to the left.
5. A mechanical safety lock device for a two-trigger machine according to claim 1, characterized in that: The surface of the rack (1) is evenly provided with a plurality of tooth grooves (101), and each group of tooth grooves (101) is provided with two groups of buffer check grooves (102) on the plane wall plate, and the buffer check grooves (102) are each provided with a buffer rubber strip.
6. A mechanical safety lock device for a two-trigger machine according to claim 1, characterized in that: In a static state, the height of the tooth groove collision block (811) is set one centimeter higher than the tooth groove (101).