CN201149514Y - Automatic powder weighing machine - Google Patents

Abstract

The utility model provides a powder automatic weighing machine, in particular to are suitable for weighing of the multiple material multicomponent of powder material to automatic compression molding station of carrying. An automatic powder weighing machine comprises a mechanical system and an electric control system, and is characterized in that the mechanical system comprises the following modes: inhale material device (1) and be connected with workbin (2), workbin (2) top is equipped with filter cloth bag (3), is equipped with pivoted agitator (4) in the workbin, and discharge gate department in the workbin bottom installs feeder (5), and weighing hopper (6) that have the wicket hang on weighing sensor (7) to set up in the below of feeder (5), and the below of weighing hopper (6) is provided with chute (17), and material cup (8) are fixed on conveying chain (10) by chuck (9) equidistance, and correspond with chute (17). The machine can weigh various multi-component powder materials at the same time, and the powder materials are directly conveyed to a mould pressing station by a conveying device, and cups automatically return, so that the machine is very suitable for forming a production line with a multi-station forming press.

Description

Powder Automatic Weighing Machine

technical field

The utility model belongs to an automatic weighing machine, in particular to the weighing of various materials and components suitable for powder materials, which are automatically transported to a molding station.

Background technique

Powder compression molding is a production method for many mechanical parts and daily necessities. First, the powder should be weighed and then loaded into the mold. Sometimes two kinds of materials need to be loaded into the mold successively to produce double-layer products. The weight accuracy of the weighing material will directly affect the quality of the product and the utilization rate of the material. At present, most of the powder weighing is done manually, not only the labor intensity is high, the dust is flying and the environment is affected, but also the weighing error is arbitrary, which directly affects the product quality. The weighed powder has to be transported in a container such as a cup, and the cup has to be returned, resulting in a large amount of logistics at the production site, complicated management, and serious waste of manpower.

Contents of the invention

The purpose of the utility model is to provide a weighing machine suitable for automatic weighing of powder materials, cupping and sending to the molding station, and can simultaneously weigh more than two kinds of materials as required.

The purpose of this utility model is achieved in that, it is as follows in conjunction with accompanying drawing:

An automatic powder weighing machine, which is composed of a mechanical system and an electric control system. The mechanical system is composed as follows: a suction device 1 is connected to a material box 2, and a filter cloth bag 3 is installed above the material box 2. A rotating agitator 4 is installed, and a feeder 5 is installed at the discharge port at the bottom of the material box. The weighing hopper 6 with a small door is hung on the load cell 7, and is arranged below the feeder 5. The weighing hopper The bottom of 6 is provided with a slide chute 17, and the feed cup 8 is equidistantly fixed on the conveyor chain 10 by the chuck 9, and corresponds to the slide chute 17.

Said suction device 1 adopts induced draft fan.

Said material box 2 can be cylindrical, also can be " U ", according to weighing several different materials at the same time, material box can be divided into several grids accordingly.

Said feeder 5 is made up of drive motor 11, screw conveyor 12 and material pipe 13, and the diameter and pitch of screw conveyor can be selected according to the weight of every part of material.

Said feeder 5 can add a small-diameter screw conveyor 14 at the output end of the large-diameter screw conveyor 12 again.

On said conveying chain 10, travel switch 16 is provided with, and induction block 15 is housed by the spacing of chuck 9.

Said slide chute 17 is connected with a cylinder 18, which can be flipped back and forth under the push of the cylinder 18, and a recovery box 19 is provided at the corresponding lower side of the slide chute 17 turned back.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is A-A sectional view of Fig. 1;

Fig. 4 is the front view of the utility model feed box 2;

Fig. 5 is the B-B sectional view of Fig. 4;

Fig. 6 is an enlarged view of the end of the conveyor chain 10;

Fig. 7 is the enlarged view of feeder 5;

Figure 8 is a partially enlarged view of Figure 1;

In the figure 1, induced draft fan 2, material box 3, filter cloth bag 4, agitator 5, feeder 6, weighing hopper 7, load cell 8, material cup 9, chuck 10, conveyor chain 11, driving motor 12, screw Conveyor 13, material pipe 14, small-diameter screw conveyor 15, induction block 16, travel switch 17, slide trough 18, cylinder 19, recovery box

Detailed ways

Further illustrate the specific content of the utility model below in conjunction with the embodiment shown in accompanying drawing:

The powder material automatic weighing machine of the utility model is composed of a mechanical system and an electric control system. It is characterized in that the mechanical system is composed as follows: the powder to be weighed is sucked into the material box 2 by the induced draft fan 1, and a filter cloth bag 3 is installed above the material box to discharge the air. A rotating agitator 4 is installed in the material box to prevent the powder from stratifying and filling the discharge port. A feeder 5 is installed below the discharge port. On the weighing sensor 7, when the weight of the conveyed material reaches the set value, the feeding is stopped, the door below the weighing hopper is opened, and the material is dropped into the feeding cup 8, and the weighing enters the next cycle. The feeding cups are equidistantly fixed on the conveying chain 10 by chucks 9. After weighing a group of materials, the conveying chain will send the feeding cups to the designated station according to the instructions. The operator removes the feeding cups and pours the powder into the mold. The empty cup is put back to the original position and clamped by the chuck, and the conveyor chain runs according to the new instruction.

Material box 2 can be cylindrical, also can be " U ". When weighing several different materials at the same time, the U-shaped material box can be divided into several compartments accordingly.

The feeder 5 is made up of a driving motor 11, a screw conveyor 12 and a material pipe 13, and the diameter and pitch of the screw conveyor can be selected according to the weight of each portion of material. In order to further improve the weighing accuracy, a small-diameter screw conveyor 14 can be added at the output end of the large-diameter screw conveyor to further improve the delivery accuracy.

The material cup 8 is clamped on the collet 9 of the conveying chain 10. On the conveying chain 10, the sensor block 15 is installed according to the distance between the collets 9. When the chain running sensor block passes the travel switch 16, the electric control system automatically counts and accurately Controls where it stops.

The slide trough 17 can be turned back and forth under the push of the cylinder 18. When the weighed material is out of tolerance, the cylinder 18 moves the slide trough to turn backwards under the control of the electronic control system, and the material is poured into the recovery box 19, which is automatically shaved off. . The material in the recovery box is sucked back into the material box 2 after accumulating to a certain amount.

Claims (7)

1, a kind of powder automatic weighing machine, form by mechanical system and electric-control system, it is characterized in that described mechanical system forms as follows: suction device (1) is connected with hopper (2), filter cloth bag (3) is equipped with in hopper (2) top, the stirrer (4) of rotation is housed in the hopper, discharging opening place in the hopper bottom is equipped with feed appliance (5), the bucket (6) that has wicket is hung on the LOAD CELLS (7), and be arranged on the below of feed appliance (5), the below of bucket (6) is provided with lubricating substance groove (17), material cup (8) equidistantly is fixed on the carrier chain (10) by chuck (9), and corresponding with lubricating substance groove (17).

2, a kind of powder automatic weighing machine according to claim 1, said suction device (1) adopts induced draft fan.

3, a kind of powder automatic weighing machine according to claim 1, said hopper (2) can be columniform, also " U ", according to several different material of while weighing, hopper can correspondingly be separated into several lattice.

4, a kind of powder automatic weighing machine according to claim 1, said feed appliance (5) is made up of drive motor (11), spiral conveyer (12) and material pipe (13), and the diameter of spiral conveyer and pitch can be selected according to the weight of every part of material.

5, according to claim 4ly send a kind of powder automatic weighing machine, said feed appliance (5) can increase a minor diameter spiral conveyer (14) again at the output terminal of major diameter spiral conveyer (12).

6, a kind of powder automatic weighing machine according to claim 1, said carrier chain (10) is provided with travel switch (16), and by the spacing of chuck (9) sensor block (15) is housed.

7, a kind of powder automatic weighing machine according to claim 1, said lubricating substance groove (17) is connected with cylinder (18), can overturn front and back under cylinder (18) promotes, and the corresponding below of turning over behind lubricating substance groove (17) is provided with collection box (19).

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