CN-121977355-A - Door bolt mechanism of large-scale sintering cavity

Abstract

The application discloses a door bolt mechanism of a large sintering cavity, and aims to solve the defect that a pressing block mechanism on the sintering cavity is complicated in opening and pressing a door by rotating a plurality of hand wheels. The application comprises a door bolt connecting rod, a plurality of door pressing cushion blocks fixed on a cavity door and a plurality of door bolt bodies rotatably mounted on a sintering cavity body, wherein the door bolt bodies are rotatably connected with the door bolt connecting rod, and after any one door bolt body rotates, all door bolt bodies are driven to rotate together through the door bolt connecting rod and are pressed on the corresponding door pressing cushion blocks. The door bolt mechanism facilitates the opening and compressing operation of the cavity door of the large sintering cavity, and can realize the synchronous rotation of all door bolt bodies by operating a single door bolt body, thereby providing the working efficiency and having good compressing effect of the cavity door.

Inventors

• YANG LIYUAN
• XIE RUYING
• CHEN JUN

Assignees

• 杭州大和热磁电子有限公司

Dates

Publication Date

20260505

Application Date

20251229

Claims (10)

1. 1. The door bolt mechanism of the large sintering cavity is characterized by comprising a door bolt connecting rod, a plurality of door pressing cushion blocks fixed on a cavity door and a plurality of door bolt bodies rotatably installed on the sintering cavity, wherein the door bolt bodies are rotatably connected with the door bolt connecting rod, and after any one door bolt body rotates, all door bolt bodies are driven to rotate together through the door bolt connecting rod and are pressed on the corresponding door pressing cushion blocks.
2. 2. A large sintering chamber door bolt mechanism according to claim 1 wherein the door bolt body is provided with inclined compression surfaces which bear against the door pressing pads.
3. 3. A large sintered cavity door bolt mechanism according to claim 2, wherein the door bolt body is slidably connected with an abutment block, a pre-tightening spring is arranged between the abutment block and the door bolt body, and the pressing surface is arranged on the surface of the abutment block.
4. 4. A large sintered cavity door bolt mechanism as in claim 1 wherein either door bolt body is securely attached to the handle.
5. 5. The door bolt mechanism of a large sintering cavity according to claim 1, wherein the door bolt body is provided with a shaft hole, a shaft sleeve is sleeved in the shaft hole, the shaft sleeve is fixedly connected to the sintering cavity through a door bolt screw, a limiting ring is sleeved on the door bolt screw, and the limiting ring limits the door bolt body.
6. 6. The door bolt mechanism of a large sintering cavity according to claim 1, wherein a rotating boss is arranged on the door bolt body, a T-shaped hole is arranged on the door bolt connecting rod, the rotating boss is rotationally connected with the T-shaped hole, the rotating boss is fixedly connected with a connecting rod screw, and the nut end of the connecting rod screw is limited at the large diameter of the T-shaped hole.
7. 7. The door bolt mechanism of a large sintering cavity according to claim 1, wherein the door bolt body is provided with a positioning pin hole, the sintering cavity is provided with a door opening pin hole and a door locking pin hole, the positioning pin shaft is inserted into the positioning pin hole and the door locking pin hole after the door bolt body is pressed on a door pressing cushion block, and the positioning pin shaft is inserted into the positioning pin hole and the door opening pin hole after the door bolt body is separated from the door pressing cushion block.
8. 8. The door bolt mechanism of the large sintering cavity according to claim 1, wherein the door bolt body is provided with a in-place locking mechanism and a handle, the sintering cavity is fixedly connected with a door bolt screw, the door bolt screw is provided with a positioning fluted disc, the in-place locking mechanism comprises a locking pin and a push-pull plate, the end part of the locking pin is clamped at the edge of the positioning fluted disc, the locking pin is provided with a guide pillar, the push-pull plate is provided with an inclined pushing groove, the guide pillar is movably connected with the pushing groove in a plug-in manner, the push-pull plate is connected with a return spring, a winding shaft is arranged in the handle, the winding shaft is connected with a pressing arm, and a pull rope is connected between the winding shaft and the push-pull plate.
9. 9. The latch mechanism of a large sintering chamber of claim 8 wherein the latch body has a sliding channel and a push-pull channel, the latch pin being slidably mounted in the sliding channel, and the push-pull plate and return spring being mounted in the push-pull channel.
10. 10. A large sintered cavity door bolt mechanism according to any one of claims 1 to 9 wherein the surface of the door pressing pad is provided with a slot which is slidingly connected to the height adjusting pad.

Description

Door bolt mechanism of large-scale sintering cavity Technical Field The invention relates to the technical field of semiconductor processing, in particular to a door bolt mechanism of a large-scale sintering cavity. Background The existing large-sized (about three and four meters in height) sintering cavity door bolt mechanism for opening and closing the door comprises an upper pressing block mechanism and a lower pressing block mechanism which are separated, wherein the pressing block mechanism is composed of a hand wheel, a screw rod and a pressing block, and the door is opened and pressed by rotating the hand wheels respectively, so that the door is complicated. As in chinese patent application number 2020100553039, a door anti-slip device for a sintering furnace is disclosed, in which the door is locked by a single locking structure, and the locking structure is not suitable for a large-sized sintering chamber. The large-scale sintering cavity needs a plurality of locking points to realize the locking to the door, and the hand wheel is operated alone through a plurality of locking points and is realized opening and compressing tightly of door, comparatively loaded down with trivial details. Disclosure of Invention In order to overcome the defects, the invention provides a door bolt mechanism of a large-scale sintering cavity, which is greatly convenient for opening and compressing operation of a large-scale sintering cavity door, and provides working efficiency and good compressing effect of the large-scale sintering cavity door. In order to solve the technical problems, the technical scheme is that the door bolt mechanism of the large sintering cavity comprises door bolt connecting rods, a plurality of door pressing cushion blocks fixed on a cavity door and a plurality of door bolt bodies rotatably mounted on the sintering cavity, wherein the door bolt bodies are rotatably connected with the door bolt connecting rods, and after any one door bolt body rotates, all door bolt bodies are driven to rotate together through the door bolt connecting rods and are pressed on the corresponding door pressing cushion blocks. All the door bolt bodies are connected together through the door bolt connecting rod, so that the door bolt bodies synchronously rotate. The door bolt body is rotationally connected to the sintering cavity, and the door pressing pad block is fixed on the cavity door. After the cavity door is closed, the door bolt body is rotated or the door bolt connecting rod is pushed, so that all the door bolt bodies rotate together and are pressed on the corresponding door pressing cushion blocks, and further the compression locking of the cavity door is realized. When the door needs to open the cavity door, the door bolt body is reversely rotated or the door bolt connecting rod is reversely pushed, and the door bolt connecting rod drives all the door bolt bodies up and down to rotate, so that the door bolt body is separated from the door pressing pad block, and the cavity door can be opened. The bolt mechanism disclosed by the application has the advantages that the multiple bolt bodies are connected into the integral structure through the bolt connecting rod, the synchronous rotation of all the bolt bodies can be realized by operating the single bolt body, the operation is convenient, the working efficiency is high, the bolt mechanism is suitable for opening and compressing and positioning the upper cavity door of the large-scale sintering cavity, and the compressing effect is good. Preferably, the bolt body is provided with an inclined pressing surface, and the pressing surface is pressed on the door pressing cushion block. The inclined pressing surface is used for ensuring that the door bolt body can press the pressing door cushion block. Preferably, the bolt body is connected with the abutting block in a sliding manner, a pre-tightening spring is arranged between the abutting block and the bolt body, and the pressing surface is arranged on the surface of the abutting block. Because the bolt body and the pressure door cushion block all set up a plurality of, positional deviation appears after long-time use, leads to the compression surface on the bolt body to be unable with the complete pressfitting of pressure door cushion block, in order to guarantee to compress tightly the effect, continue to rotate the bolt body to ensure that the compression surface on all bolt bodies all presss from both sides with the complete pressfitting of pressure door cushion block, guarantee to the effect of compressing tightly the location to the chamber door. Because the compression face sets up on the butt piece, butt piece sliding connection is on the keeper body, consequently the compression face on the keeper body and the in-process of continuing to rotate the keeper body after the lamination of pressure door pad piece, only the keeper body rotates, and the butt piece keeps motionless, prevents to appear the jamming p