碳棒挤压成型机构
By using a dual-heat source heating control system combining an inner diameter core mold and an outer diameter master mold, the cracking problem caused by large temperature gradients in carbon rod forming was solved, achieving efficient and uniform carbon rod forming and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN BOSHI INTELLIGENT CONTROL TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing carbon rod forming technology suffers from problems such as long cycle time, high energy consumption, uneven carbon rod density, poor dimensional accuracy, and easy cracking of products, especially the large temperature gradient caused by concentrated heat in hot pressing equipment.
It adopts a combination structure of inner diameter core mold and outer diameter female mold. The heating tube is inserted inside the inner diameter core mold, and the heat-conducting sleeve and heating sleeve are sleeved on the outer diameter female mold. The dual heat sources complement each other for heating. Combined with the temperature sensor to control the heating uniformity, it ensures that the temperature inside and outside the working mold cavity is consistent. It is extruded and formed by the cooperation of upper male mold and lower extrusion plate.
It improves the quality of carbon rod forming, reduces the risk of carbon rod cracking, enhances heating efficiency and uniformity, shortens the production cycle, and increases production efficiency.
Smart Images
Figure CN224510534U_ABST
Abstract
Claims
1. A carbon rod extrusion forming mechanism, comprising a base and a moving seat capable of moving horizontally and linearly on the base, and a die frame bottom plate detachably and fixedly installed on the moving seat, characterized in that, Also includes: An inner diameter core mold is fixedly installed on the base plate of the mold frame, and a heating tube is inserted inside the inner diameter core mold; An outer diameter female mold is fitted onto the inner diameter core mold, and a working mold cavity is formed between the outer diameter female mold and the inner diameter core mold. Toner is added into the working mold cavity. A heat-conducting sleeve is fitted onto the outer diameter female mold; A heating sleeve is fitted onto the heat-conducting sleeve; The upper male mold is connected to a first vertical drive source, which is used to drive the upper male mold to move vertically up and down so that the upper male mold can be inserted into the working mold cavity; A lower extrusion plate is disposed within the working mold cavity. The lower extrusion plate is connected to a second vertical drive source, which drives the lower extrusion plate to move vertically up and down to cooperate with the upper die to extrude the carbon powder in the working mold cavity into shape.
2. The carbon rod extrusion molding mechanism according to claim 1, wherein The movable base is also equipped with a power distribution box. Several first temperature sensors are inserted through the periphery of the heating sleeve, and a second temperature sensor is inserted through the bottom of the inner diameter core mold. The heating tube, the heating sleeve, the first temperature sensor and the second temperature sensor are all connected to the power distribution box.
3. The carbon rod extrusion molding mechanism according to claim 2, wherein The heating sleeves are stacked and fitted onto the outside of the heat-conducting sleeve. The heating sleeves have perforations on their circumferences and the heat-conducting sleeves have temperature-sensing recesses on their sidewalls. The first temperature sensors are of several kinds, and the several first temperature sensors pass through the perforations and are placed into the temperature-sensing recesses.
4. The carbon rod extrusion molding mechanism according to claim 1, wherein The outer diameter of the upper end of the inner diameter core mold gradually decreases, while the inner diameter of the upper end of the outer diameter female mold gradually increases, so that the upper end of the working mold cavity forms a trumpet-shaped material guide.
5. The carbon rod extrusion forming mechanism according to claim 1, wherein The height of the inner diameter core mold is lower than the height of the outer diameter female mold. The upper end of the outer diameter female mold is fitted with an upper heat insulation ring and a mold frame cover plate from the inside to the outside. The upper heat insulation ring and / or the mold frame cover plate can cover the heating sleeve. The upper end surfaces of the upper heat insulation ring and the mold frame cover plate are flush with the upper end surface of the outer diameter female mold.
6. The carbon rod extrusion mechanism of claim 1, wherein, The base plate of the mold frame has a centrally hollowed-out mounting groove. The lower ends of the inner diameter core mold and the outer diameter female mold are both fixedly mounted on the mold fixing block. The mold fixing block is fixedly connected to the bottom of the heat-conducting sleeve through a bottom limiting plate. The heat-conducting sleeve is fixedly overlapped in the mounting groove.
7. The carbon rod extrusion forming mechanism according to claim 6, wherein The mold fixing block is provided with a number of waist-shaped holes evenly distributed along the circumference. The output end of the second vertical drive source is connected to a push rod, which passes through the waist-shaped holes and lifts the lower extrusion plate.
8. The carbon rod extrusion forming mechanism according to claim 6, wherein The mounting groove is also provided with a heat insulation pad and a heat insulation ring. The heat-conducting sleeve overlaps the heat insulation pad and is fixedly connected to the mold base plate by bolts. The heating sleeve overlaps the heat insulation ring.
9. The carbon rod extrusion forming mechanism according to claim 8, wherein The base plate of the mold frame is also provided with a heat-insulating fiberglass board, which is fitted onto the lower end of the heating sleeve.