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CN-121972627-A - Anti-falling device of die-casting edge trimmer

CN121972627ACN 121972627 ACN121972627 ACN 121972627ACN-121972627-A

Abstract

The application relates to the technical field of industrial equipment safety protection, and particularly discloses an anti-falling device of a die-casting edge cutter. In order to solve the problem that the seat falls down in the maintenance process of the cast edge cutter. The edge trimmer comprises a fixed base, an abutting plate, a push ring and a transmission connecting rod mechanism, wherein the base comprises two semi-annular fixed shells which are detachably connected, the two fixed shells can be clamped and fixed on a guide post of the edge trimmer together, an annular groove is formed in the top of the fixed shell, the abutting plate is slidably arranged in the annular groove and can slide along the radial direction of the guide post, the push ring is arranged above the annular groove, the transmission connecting rod mechanism is arranged between the push ring and the abutting plate, and when the push ring is subjected to the pressure of falling down of a middle seat of the edge trimmer, the transmission connecting rod mechanism drives the abutting plate to abut against and lock the guide post. The application reduces the falling condition of the seat in the overhauling process of the die-casting edge cutter.

Inventors

  • ZHANG XINLE
  • LI XIAOQIANG
  • Wei Qiandie
  • GUO HONGCHAO
  • WANG GUONING

Assignees

  • 山东宏灿材料科技有限公司

Dates

Publication Date
20260505
Application Date
20260129

Claims (8)

  1. 1. The utility model provides a die-casting bead cutter anti-falling device which is characterized by comprising The fixing base (1) comprises two semi-annular fixing shells (11) which are detachably connected, and the two fixing shells (11) can be clamped and fixed on a guide post (9) of the edge cutter together; The semi-annular abutting plate (3) is arranged at the top of the fixed shell (11), an annular groove (2) is formed in the top of the fixed shell, and the abutting plate (3) is arranged in the annular groove (2) in a sliding mode and can slide along the radial direction of the guide column (9); a push ring (6) arranged above the annular groove (2); The transmission link mechanism (7), transmission link mechanism (7) set up between push ring (6) and butt board (3), when push ring (6) receive the pressure of well seat (91) whereabouts, transmission link mechanism (7) drive butt board (3) support tightly and lock guide post (9).
  2. 2. The die-casting bead cutter safety device according to claim 1, further comprising a limiting assembly (5), the limiting assembly (5) comprising: at least one anti-falling groove (51) arranged on the bottom wall of the annular groove (2), wherein the extending direction of the anti-falling groove (51) faces to the axis of the guide post (9); The sliding block (52) is fixedly connected to the bottom of the abutting plate (3), and the sliding block (52) is in sliding fit with the anti-falling groove (51).
  3. 3. A die-casting bead cutter fall protection device according to claim 2, characterized in that the transmission link mechanism (7) comprises a first support bar (71), a second support bar (72) and a link assembly (73); The side wall of the annular groove (2) is connected with a positioning cylinder (74) which is vertically arranged, the first supporting rod (71) is arranged in the positioning cylinder (74) in a sliding manner, and the top end of the first supporting rod (71) is fixedly connected with the push ring (6); The bottom wall of the annular groove (2) is provided with a pushing groove (75), the second supporting rod (72) is arranged in the pushing groove (75) in a sliding mode, and one end of the second supporting rod (72) is connected with the abutting plate (3); The link assembly (73) is hinged between the first support rod (71) and the second support rod (72) and is configured to convert vertical movement of the first support rod (71) into radial movement of the second support rod (72).
  4. 4. A die-casting bead cutter fall preventing device according to claim 3, wherein the link assembly (73) comprises a connecting rod (731), one end of the connecting rod (731) is hinged to the bottom end of the first support rod (71), and the other end of the connecting rod (731) is hinged to the end of the second support rod (72) away from the abutment plate (3).
  5. 5. The die-casting bead cutter fall preventing device according to claim 4, wherein the link assembly (73) further comprises a tension rod (732), one end of the tension rod (732) is hinged to the bottom wall of the annular groove (2), and the other end of the tension rod (732) is hinged to the middle of the connecting rod (731).
  6. 6. The drop preventing device for the die-casting edge trimmer according to claim 5, wherein a return spring (8) is arranged in the drop preventing groove (51), one end of the return spring (8) is connected with the end wall of the drop preventing groove (51), and the other end of the drop preventing groove (51) is connected with a sliding block (52); in the standby state, the return spring (8) is used for pulling the second support rod (72) to overcome the gravity of the push ring (6) so that the push ring (6) is positioned above the abutting plate (3).
  7. 7. The anti-falling device of the die-casting edge trimmer according to claim 1, characterized in that the surface of the abutting plate (3) facing the guide post (9) is provided with a wear-resistant plate (4).
  8. 8. A die-cast bead cutter fall protection device according to claim 1, characterized in that the wear plate (4) is made of a non-metallic material having a high friction coefficient and elasticity.

Description

Anti-falling device of die-casting edge trimmer Technical Field The application relates to the technical field of industrial equipment safety protection, in particular to a falling prevention device of a die-casting edge cutter. Background In the conventional operation of the die-casting edge cutter, the equipment relies on a hydraulic system to drive a main oil cylinder so as to realize the accurate lifting of the middle seat and the die-casting edge cutting operation. However, the critical hydraulic system faces reliability challenges in actual operation, and accidents such as burst of a main oil cylinder pipe, loose hydraulic joints or failure of a valve element occur. Upon such failure, the pressure in the hydraulic circuit will be lost instantaneously, resulting in the loss of force supporting the mid-seat, which will drop down rapidly under its own weight. Such unexpected uncontrolled droops, the hazard of which is multiple and fatal. First, the falling center seat can violently strike and damage the underlying expensive mold and equipment table, resulting in significant direct economic loss and lengthy downtime for maintenance. But is more serious as it poses an extreme threat to personnel safety, particularly to service and maintenance personnel. In the case of mould changes, equipment commissioning or internal repair, maintenance personnel often need to bring body parts even entirely into the dangerous area under the seat in the equipment, which is an unavoidable link for daily operations. Under the situation, if the hydraulic system suddenly fails, the middle seat with a weight of several tons falls between the moments, and the maintainer has little reaction and escape time due to the inside of the equipment, so that the extruded serious casualties easily occur, and the consequence is not considered. Disclosure of Invention The application provides an anti-falling device of a die-casting edge cutter, which aims to reduce the falling condition of a seat in the overhauling process of the die-casting edge cutter. The application provides a die-casting edge trimmer anti-falling device which adopts the following technical scheme: An anti-falling device of a die-casting edge cutter comprises The fixing base comprises two semi-annular fixing shells which are detachably connected, and the two fixing shells can be clamped and fixed on a guide post of the edge cutter together; the semi-annular abutting plate is arranged at the top of the fixed shell, is slidably arranged in the annular groove and can slide along the radial direction of the guide post; The push ring is arranged above the annular groove; the transmission connecting rod mechanism is arranged between the push ring and the abutting plate, and when the push ring is subjected to the pressure of the falling of the middle seat, the transmission connecting rod mechanism drives the abutting plate to abut against and lock the guide post. Further, still include spacing subassembly, spacing subassembly includes: At least one anti-drop groove is formed in the bottom wall of the annular groove, and the extending direction of the anti-drop groove faces the axis of the guide post; The sliding block is fixedly connected to the bottom of the abutting plate and is in sliding fit with the anti-falling groove. Further, the transmission link mechanism comprises a first support rod, a second support rod and a link assembly; the side wall of the annular groove is connected with a positioning cylinder which is vertically arranged, the first supporting rod is arranged in the positioning cylinder in a sliding manner, and the top end of the first supporting rod is fixedly connected with the push ring; The bottom wall of the annular groove is provided with a pushing groove, the second supporting rod is arranged in the pushing groove in a sliding mode, and one end of the second supporting rod is connected with the abutting plate; the connecting rod assembly is hinged between the first support rod and the second support rod and is configured to convert vertical movement of the first support rod into radial movement of the second support rod. Further, the connecting rod assembly comprises a connecting rod, one end of the connecting rod is hinged to the bottom end of the first supporting rod, and the other end of the connecting rod is hinged to one end, away from the abutting plate, of the second supporting rod. Further, the connecting rod assembly further comprises a tension rod, one end of the tension rod is hinged to the bottom wall of the annular groove, and the other end of the tension rod is hinged to the middle of the connecting rod. Further, a reset spring is arranged in the anti-falling groove, one end of the reset spring is connected with the end wall of the anti-falling groove, and the other end of the anti-falling groove is connected with the sliding block; And in the standby state, the reset spring is used for pulling the second support rod to overcome the gravi