CN109367104B

CN109367104B - Forming device of powder forming machine

Info

Publication number: CN109367104B
Application number: CN201811117413.2A
Authority: CN
Inventors: 呼如亮
Original assignee: Ningxia Xinboning Precision Machinery Co ltd
Current assignee: Ningxia Xinboning Precision Machinery Co ltd
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2023-09-15
Anticipated expiration: 2038-09-20
Also published as: CN109367104A

Abstract

The invention belongs to the technical field of molding processing equipment, and relates to a molding device of a powder molding machine. The device comprises a main shaft, an eccentric wheel, a lower die shaft, a demolding plate, a jacking mechanism, a belt pulley and a frame, wherein the jacking mechanism comprises two groups of jacking mechanisms which are symmetrically distributed on two sides of the eccentric wheel, and the cam is fixedly sleeved on the main shaft. By means of the device, through the coaxial arrangement of the jacking mechanism and the cam and the eccentric wheel, when a product is pressed, the air cylinder plays a role in maintaining pressure, stability of pressing is improved, loss in the pressing process is reduced, quality and performance of the powder forming machine are improved, and cost of the powder forming machine is reduced.

Description

Forming device of powder forming machine

Technical Field

The invention belongs to the technical field of molding processing equipment, and relates to a molding device of a powder molding machine.

Background

In recent years, in the field of full-automatic powder forming machines, not only imported products occupy high-end markets for a long time, but also domestic enterprises continuously produce and manufacture a large number of products with low price, so that the full-automatic powder forming machines are increasingly competitive. The imported powder forming machine is positioned in the market with high quality, high performance and high price, and mainly meets the demands of a small part of clients in the domestic market, while most clients in the domestic market still use domestic powder forming machines. At present, the quality and the performance of the domestic powder forming machine are uneven, and the price is very different, but the domestic powder forming machine with lower requirements on the quality and the performance still has huge market living space due to larger market capacity. Specifically, the lower stamping die mechanism of the existing full-automatic powder forming machine is only of a single cam push rod structure, so that the forming working state is unstable and discontinuous; meanwhile, in the moving process of the cam, the energy of the lower die rod pressed by each angle is not fixed, so that the loss and the instability of the machine in the full mechanical moving process are easy to cause, and the stability of the final product cannot be ensured.

Disclosure of Invention

The invention aims to provide a forming device of a powder forming machine, which increases the stability of a product pressing process and improves the quality and performance of the powder forming machine.

The technical scheme for solving the technical problems is as follows:

a molding device of a powder molding machine comprises a main shaft, an eccentric wheel, a lower die stamping shaft, a demolding plate, a pressing mechanism, a belt pulley and a frame; the eccentric wheel is fixedly sleeved on the main shaft, the lower die shaft is fixedly arranged at the far end of the eccentric wheel, and the demoulding shaft is fixedly arranged on the demoulding plate and is positioned right below the lower die shaft; the jacking mechanism comprises a cam, a push rod and an air cylinder, wherein the cam is fixedly sleeved on the main shaft, one end of the push rod is connected with a plunger of the air cylinder, and the other end of the push rod is positioned right below the cam and is movably in pressure connection with the cam; the number of the jacking mechanisms is two, and the jacking mechanisms are symmetrically distributed on two sides of the eccentric wheel; the belt pulley is positioned at the outer side of one group of the jacking mechanism and is fixedly sleeved on the main shaft; the main shaft is arranged at the upper end of the frame in a penetrating way through the bearing, and the air cylinder is fixedly arranged at the lower end of the frame.

Preferably, the distal end of the eccentric wheel and the distal end of the cam are respectively located at opposite sides of the main shaft, wherein the distal end of the eccentric wheel refers to a position with the largest distance from the eccentric wheel shaft hole, and the distal end of the cam refers to a position with the largest distance from the cam shaft hole; the distal end of the eccentric wheel, the main shaft and the distal end of the cam are positioned on the same plane; the stripper plate is horizontally arranged, and two ends of the stripper plate are respectively and fixedly connected with plungers of cylinders on two sides.

The forming device of the powder forming machine has the beneficial effects that the eccentric wheel on the main shaft provides power for the lower die shaft and drives the lower die shaft to move downwards, so that the product pressing process is realized; the two cylinders are in an energy balance state in the process of pressing a product by utilizing the matching of the cams, the push rods and the cylinders in the two groups of pressing mechanisms which are symmetrically arranged and the coaxial arrangement of the cams and the eccentric wheels, so that the pressure maintaining effect is achieved, and the stability of the product in the pressing process is improved; the demolding shaft is driven by the air cylinders to move downwards after the products are pressed through the connection of the demolding plates and the two air cylinders, so that the products after being pressed can be smoothly demolded; the forming device is suitable for various powder forming machines, can effectively improve the stability of pressed products, reduce the loss in the pressing process, further improve the quality and performance of the powder forming machine, reduce the cost of the powder forming machine, enable the powder forming machine to have market competitiveness and occupy certain market space.

Drawings

Fig. 1 is a schematic structural view of a molding device of a powder molding machine according to the present invention.

The codes in the drawings are respectively: the device comprises a main shaft 1, an eccentric wheel 2, a lower die shaft 3, a demolding shaft 4, a demolding plate 5, a jacking mechanism 6, a cam 6-1, a push rod 6-2, a cylinder 6-3, a belt pulley 7 and a frame 8.

Detailed Description

As shown in fig. 1, a molding device of a powder molding machine comprises a main shaft 1, an eccentric wheel 2, a lower die shaft 3, a demolding shaft 4, a demolding plate 5, a pressing mechanism 6, a belt pulley 7 and a frame 8; the eccentric wheel 2 is fixedly sleeved on the main shaft 1, the lower die shaft 3 is fixedly arranged at the far end of the eccentric wheel 2, and the demoulding shaft 4 is fixedly arranged on the demoulding plate 5 and is positioned right below the lower die shaft 3; the jacking mechanism 6 comprises a cam 6-1, a push rod 6-2 and an air cylinder 6-3, wherein the cam 6-1 is fixedly sleeved on the main shaft 1, one end of the push rod 6-2 is connected with a plunger of the air cylinder 6-3, and the other end of the push rod is positioned under the cam 6-1 and is movably pressed and connected with the cam 6-1; the number of the jacking mechanisms 6 is two, the jacking mechanisms are symmetrically distributed on two sides of the eccentric wheel 2, the stripper plate 5 is horizontally arranged, and two ends of the stripper plate are fixedly connected with plungers of the air cylinders 6-3 on two sides respectively; the distal end of the eccentric wheel 2 and the distal end of the cam 6-1 are respectively positioned at the opposite side of the main shaft 1, and the distal ends of the eccentric wheel 2, the main shaft 1 and the cam 6-1 are positioned on the same plane; the belt pulley 7 is positioned at the outer side of one group of pressing mechanisms 6 and is fixedly sleeved on the main shaft 1; the main shaft 1 is arranged at the upper end of the frame 8 in a penetrating way through a bearing, and the air cylinder 6-3 is fixedly arranged at the lower end of the frame 8.

The working process of the powder forming machine forming device comprises the steps of installing a forming die on a lower die shaft 3, feeding powder materials into the forming die through a feeding mechanism, opening a motor to drive a belt pulley 7 to rotate so as to drive a main shaft 1 to rotate, and as an eccentric wheel 2, a cam 6-1 and the belt pulley 7 are coaxially arranged and fixedly sleeved on the main shaft 1, the rotation of the main shaft 1 drives the eccentric wheel 2 to rotate so as to drive a lower die shaft 3 arranged at the far end of the eccentric wheel 2 to rotate, and compacting with a demoulding shaft 4 when the lower die shaft 3 rotates downwards to a vertical direction, so that the pressing of products is completed; meanwhile, the cams 6-1 positioned at the two sides of the eccentric wheel 2 rotate along with the rotation of the main shaft 1, because the distal end of the eccentric wheel 2 and the distal end of the cam 6-1 are respectively positioned at the opposite sides of the main shaft 1, and the distal ends of the eccentric wheel 2, the main shaft 1 and the distal ends of the cams 6-1 are positioned on the same plane, and meanwhile, the lower die shaft 3 is arranged at the distal end of the eccentric wheel 2, when the lower die shaft 3 rotates to the vertical upward direction, the distal ends of the cams 6-1 are in the vertical downward state, and the plunger of the air cylinder 6-3 is compressed to the greatest extent through the push rod 6-2, so that the air cylinder 6-3 reaches the energy balance, and when the lower die shaft 3 rotates downwards to press a product, the air cylinder 6-3 which has reached the energy balance state presents the pressure maintaining state, thereby improving the stability of the product pressing; the demolding shaft 4 is fixedly arranged on the demolding plate 5, two ends of the demolding plate 5 are fixedly arranged on the plunger of the air cylinder 6-3, so that the demolding plate 5 and the demolding shaft 4 move along with the movement of the plunger, when the lower die shaft 3 rotates to be vertically upwards, the plunger of the air cylinder 6-3 is in a compression state to the greatest extent, the demolding shaft 4 is driven to form a vertical downward maximum displacement, a formed product is demolded through a mandrel in the demolding shaft 4, and then the product is removed and collected through a mechanical arm; along with the continuous rotation of the main shaft 1, the continuous circulation of powder pressing and taking out is realized.

In the forming device of the powder forming machine, under the existing working mode, two groups of pressing mechanisms 6 are added, specifically, two groups of cams 6-1, push rods 6-2 and air cylinders 6-3 are added; the eccentric wheel 2 and the cam 6-1 are coaxially designed, so that in the pressing process, the eccentric wheel 2 provides motion energy for the lower die shaft 3, the lower die shaft 3 is driven to rotate, meanwhile, the cam 6-1 is driven to rotate, the stability in the pressing process is enhanced through the pressure maintaining effect of the air cylinder 6-3, the stability of a product is effectively improved, and the loss in the pressing process is reduced; the forming device is used for a powder forming machine, can effectively improve the quality, performance and market competitiveness of the machine, and is capable of being against a high-cost imported powder forming machine, so that a certain market space is occupied.

Claims

1. The molding device of the powder molding machine is characterized by comprising a main shaft (1), an eccentric wheel (2), a lower die shaft (3), a demolding shaft (4), a demolding plate (5), a pressing mechanism (6), a belt pulley (7) and a frame (8);

the eccentric wheel (2) is fixedly sleeved on the main shaft (1), the lower die shaft (3) is fixedly arranged at the far end of the eccentric wheel (2), and the demolding shaft (4) is fixedly arranged on the demolding plate (5) and is positioned right below the lower die shaft (3);

the jacking mechanism (6) comprises a cam (6-1), a push rod (6-2) and an air cylinder (6-3), wherein the cam (6-1) is fixedly sleeved on the main shaft (1), one end of the push rod (6-2) is connected with a plunger of the air cylinder (6-3), and the other end of the push rod is positioned right below the cam (6-1) and is in movable compression joint with the cam (6-1);

the number of the jacking mechanisms (6) is two, and the jacking mechanisms are symmetrically distributed on two sides of the eccentric wheel (2);

the belt pulley (7) is positioned at the outer side of one group of pressing mechanisms (6) and is fixedly sleeved on the main shaft (1);

the main shaft (1) is arranged at the upper end of the frame (8) in a penetrating way through a bearing, and the air cylinder (6-3) is fixedly arranged at the lower end of the frame (8);

the far end of the eccentric wheel (2) and the far end of the cam (6-1) are respectively positioned at the opposite side of the main shaft (1);

the distal end of the eccentric wheel (2), the distal end of the main shaft (1) and the cam (6-1) are positioned on the same plane;

the stripper plate (5) is horizontally arranged, and two ends of the stripper plate are fixedly connected with plungers of air cylinders (6-3) on two sides respectively.