CN107140242B - Quantitative filling device without weighing - Google Patents

Abstract

The invention discloses a weighing-free quantitative filling device which is fixed at the bottom of a hopper through a flange, wherein the middle of the flange is provided with a hole, a cylinder body is arranged below the hole, a discharging channel is arranged in the cylinder body, the bottom of the discharging channel is provided with a relative material taking turning plate for opening or closing, and the material taking turning plate is turned over through a driving device. According to the invention, the material taking turning plate is arranged at the bottom of the barrel body, the material taking turning plate rotates inwards and upwards to be retracted after the packaging bag is filled, and partial materials are taken out and returned to the hopper while the material flow is cut off, so that the distance meeting the seam requirement is reserved at the upper part of the packaging bag. The filling operation can be completed by opening and closing the material taking turning plate once, and the quick and efficient quantitative filling work can be realized without arranging a complex and expensive electronic metering device in the funnel for weighing. The spindle-shaped barrel structure is provided with the driving devices at the tips at the two sides in a hidden manner, and has the advantages of simple and reasonable structure, small volume, no influence on the filling and bagging and convenient use.

Description

Quantitative filling device without weighing

technical field

The invention relates to the field of mechanical equipment for grain and other granular materials, in particular to a non-weighing quantitative filling bag device.

Background technique

In the industrial production process of energy, machinery, electric power, automobile, light industry and environmental protection industries, it is often necessary to measure and quantitatively pack grain, fertilizer, sugar, feed and other powder or granular materials. The existing manual control filling device is shown in Figure 1. By setting the gate valve 1 at the discharge port 3 of the hopper 2, the opening and closing of the gate valve 1 is manually controlled to control the amount of filling, and the filling is manually controlled. The operation efficiency is low and the quantitative accuracy is not high. In addition, manual control makes it impossible to accurately control the filling degree of the material in the bag, so that the seam space cannot be guaranteed after the bag is too full. When seaming, it is necessary to manually reduce the material to meet the Seams are required, thus greatly reducing operating efficiency. The existing automatic quantitative filling devices include single valve control filling device and multi-valve weighing control filling device, etc. The single valve control filling device is equipped with a weighing device in the filling device, and the filling is carried out after weighing. , is to use the weighing method to complete the material height of the packaging bag, and leave the sealing size; the metering and filling device is equipped with a measuring scale in the filling device, and the bag is filled after the weighing is completed according to the actual demand. Such a quantitative bag filling device changes the bag filling amount by changing the set value of the weighing scale or the weighing bucket. The structure is relatively complicated and the cost is high. The scale needs to be adjusted regularly, and the maintenance is complicated and costly.

Contents of the invention

Aiming at the problems of high cost, complex structure, heavy maintenance workload, low weighing accuracy of manually controlled bag filling device and low efficiency of bag filling operation in the existing automatic quantitative bag filling device mentioned above, the applicant provides a reasonable structure without Weighing and quantitative bag filling device, the bag filling operation is fast and efficient, the device has a simple structure, small size, and low manufacturing cost.

The technical scheme adopted in the present invention is as follows:

A non-weighing quantitative filling device. The cylinder is set at the bottom outlet of the material hopper. There is a discharge channel inside the cylinder. The bottom of the discharge channel is provided with a relative reclaiming flap for opening or closing. The retrieving flap passes through the The drive turns over.

As a further improvement of the above technical solution:

The cylinder is fixed on the bottom of the hopper through a flange, a hole is opened in the middle of the flange, and the cylinder is arranged below the hole.

Two vertical plates are arranged symmetrically in the cylinder body, which cooperate with the cylinder body to form a middle feeding channel and two outer spaces, and a driving device is arranged in the outer spaces.

The driving device is a first cylinder, and the root of the reclaiming flap is pivotally connected to the bottom of the riser and connected to the first cylinder.

The shape of the reclaiming flap is claw-shaped, and there are two pieces in quantity. When turned up horizontally, the fingers of the two retrieving flaps are closed alternately.

The shape of the cylinder or the flange is spindle, square, round or oval.

The driving device is locked on the upper fixed piece by bolts.

A pair of bag clamping mechanisms are arranged symmetrically on the outside of the barrel, and each bag clamping mechanism includes a pair of clamping blocks and a second air cylinder.

The clamping block and the second cylinder are pivotally connected to the flange through a pair of brackets, and the two pairs of brackets are connected through a connecting rod.

Soft cuffs are arranged at the bottoms of the two pairs of brackets.

The beneficial effects of the present invention are as follows:

The present invention is arranged at the bottom of the hopper, and by setting a reversible reclaiming flap at the bottom of the cylinder, after the packaging bag is filled, it is turned inwards and upwards, and part of the materials are picked up and picked up while the material flow is cut off. Into the hopper, so as to reserve a distance to meet the seam requirements on the upper part of the packaging bag. At the same time, because the size of the reclaiming flap is fixed, the amount of material retrieved each time is the same. By controlling the distance that the retrieving flap extends into the packaging bag, the purpose of quantitative filling without weighing is realized. The bag filling operation can be completed by opening and closing the reclaiming flap once, and it is not necessary to set up complex and expensive electronic metering devices in the hopper for weighing to realize fast and efficient quantitative bag filling work, without manual addition or reduction of materials. In the present invention, two vertical plates are arranged in the spindle-shaped barrel, and air cylinders are ingeniously installed in the limited space on both sides formed by the vertical plates and the spindle-shaped barrel to drive the reclaiming flap. The wrapping bag is out of the way and easy to use. The clamping block and strap of the entrainment mechanism can conveniently fix the bag mouth and prevent it from slipping.

Description of drawings

Fig. 1 is an existing manual control filling device utilizing a flapper valve.

Fig. 2 is a schematic diagram of the present invention after putting on a packaging bag when it is used for bag filling work.

Fig. 3 is a schematic diagram of the present invention after opening the reclaiming flap when it is used for bag filling work.

Fig. 4 is the schematic diagram after the packaging bag is put down when the present invention is used for bag filling work.

Fig. 5 is a three-dimensional sectional view of the open state of the reclaiming flap of the present invention.

Fig. 6 is a perspective view of the closing state of the reclaiming flap of the present invention.

FIG. 7 is a perspective view from another angle of view of FIG. 6 .

FIG. 8 is a front view of FIG. 6 .

FIG. 9 is a side view of FIG. 6 .

FIG. 10 is a bottom view of FIG. 6 .

In the figure: 1, flapper valve; 2, hopper; 3, discharge port; 4, reclaiming flap; 41, fingers; 42, root; 5, packing bag; 6, feeding channel; 7, flange 8, fixed piece; 9, first cylinder; 10, second cylinder; 11, connecting rod; 12, bracket; 13, clamping block;

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

As shown in FIG. 2 , FIG. 3 and FIG. 4 , the non-weighing quantitative filling device of the present invention is fixed on the bottom of the hopper 2 through the flange 7 . As shown in Figures 5 to 10, a hole is opened in the middle of the flange 7 and a spindle-shaped cylinder 15 is arranged below the hole, and two vertical plates 14 are arranged symmetrically at the two tips of the spindle in the cylinder 15 and fixed 8, the vertical plate 14 is connected with the fixed plate 8, the vertical plate 14 has a slight slope, cooperates with the cylinder body 15 to form the middle part of the feeding channel 6 and the two outer spaces, and a first cylinder 9 is respectively arranged in the outer spaces. A cylinder 9 is locked on the upper fixed piece 8 by bolts. At the bottom of the cylinder body 15 are provided with two opposite claw-shaped material retrieving flaps 4, the root portion 42 of the retrieving flap 4 is pivotally connected to the bottom of the vertical plate 14, and connected to the piston rod of the first cylinder 9, the first When the cylinder 9 expands and contracts, it drives the reclaiming flap 4 to turn over. When turning up horizontally, the fingers 41 of the two retrieving flaps 4 interact to seal the bottom of the feeding channel 6 to block the material, and the retrieving flap 4 falls vertically. Open feed channel 6 when opening. As shown in FIGS. 7 and 8 , two reinforcing ribs 16 are provided at the bottom of the reclaiming flap 4 for strengthening the bearing capacity of the retrieving flap 4 . A pair of bag clamping mechanisms are arranged symmetrically on the outside of the cylinder 15, each bag clamping mechanism includes a pair of clamping blocks 13 and a second cylinder 10 for driving the clamping block 13, the clamping block 13 and the second cylinder 10 A pair of brackets 12 are pivotally connected to the flange 7, and the two pairs of brackets 12 are connected by a connecting rod 11. The bottom of the two pairs of brackets 12 is also provided with a soft band (not shown in the figure), when the clamping block 13 When clamping, the strap tightens the mouth of the bag on the outer periphery of the bottom of the cylinder body 15 at the same time. The flange 7 can be square, round or oval, and the cylinder 15 can also be square, round or oval.

During actual work, the packaging bag 5 is fully filled with materials first, and the non-weighing quantitative filling device of the present invention is used to take out part of the material at the mouth of the bag. The amount of material taken out just meets the height requirement of the packaging bag 5 seal. Concrete process is as follows: the present invention usually takes material and turns over plate 4 and closes, and as shown in Figure 2, the material that needs filling bag in the sealing hopper 2. When it is necessary to fill the bag, first put the packaging bag 5 on the bottom periphery of the cylinder 15, start the second cylinder 10, and the second cylinder 10 drives the clamping block 13 and the strap to clamp the packaging bag 5 to ensure that the mouth of the bag is tightened At the outer circumference of the bottom of the cylinder 15. As shown in Figure 3, start the first cylinder 9, open the reclaiming flap 4, the material in the hopper 2 falls into the packaging bag 5 through the feeding channel 6 under the action of gravity. As shown in Figure 4, when the packaging bag 5 is fully filled, the material will no longer drop; at this time, the first cylinder 9 is started, and the first cylinder 9 drives the retrieving flap 4 to rotate inwardly and upwardly with the root 42 as the center of rotation until the retrieving The fingers 41 of the material flap 4 are offset, and when the reclaiming flap 4 is flipped up and returned to the initial position, on the one hand, it cuts off the material flow of the bag, closes the feeding channel 6, and at the same time closes the opening of the packaging bag 5. The material is pulled back in the hopper 2, thereby leaving enough distance for the sewing machine to sew on the top of the packaging bag 5. Then the second cylinder 10 moves to open the clamping block 13, and the packaging bag 5 is separated from the bottom of the cylinder body 15, and finally the mouth of the packaging bag 5 can be sewed. Since the size and stroke of the retrieving flap 4 are fixed, it can ensure that the amount of material retrieved from the packaging bag 5 is the same, thereby ensuring a constant distance from the mouth, thereby realizing the purpose of non-weighing quantitative filling. By controlling the height change of the packaging bag 5 sleeved on the cylinder body 15, the depth at which the retrieving flap 4 extends into the packaging bag 5 is changed, so as to achieve different filling quantities and meet the seam distance required by different seaming machines.

The above description is an explanation of the present invention, not a limitation of the present invention, and the present invention can be modified in any form without violating the spirit of the present invention. Also can adopt electric motor to replace first cylinder 9 to take material turning plate 4 to drive, or adopt common transmission devices such as gear, chain, only need to drive taking material turning plate 4 to turn over, scoop up bag mouth part material and get final product. The retrieving flap 4 is not limited to the claw type, nor is the quantity limited to two pieces, it only needs to meet the requirement of closing the bottom of the feeding passage 6.

Claims (9)

1. The utility model provides a do not have ration of weighing and irritate a packet device which characterized in that: the barrel (15) is arranged at an outlet at the bottom of the material hopper (2), a blanking channel (6) is arranged inside the barrel (15), the bottom of the blanking channel (6) is provided with a material taking turning plate (4) which is opposite to the material taking turning plate for opening or closing, the material taking turning plate (4) is turned over through a driving device, when the material taking turning plate (4) rotates inwards and upwards, the material flow of the filled bag is cut off, and part of the material at the opening of the packaging bag (5) is fished back into the hopper (2); the material taking turning plates (4) are claw-shaped, the number of the material taking turning plates is two, and when the material taking turning plates are turned to be horizontal, finger parts (41) of the two material taking turning plates (4) are sealed in an interactive mode.

2. The non-weighing quantitative bagging device according to claim 1, wherein: the barrel (15) is fixed at the bottom of the hopper (2) through the flange (7), the middle of the flange (7) is provided with a hole, and the barrel (15) is arranged below the hole.

3. The non-weighing quantitative bagging device according to claim 1, wherein: two vertical plates (14) are symmetrically arranged in the cylinder body (15) and are matched with the cylinder body (15) to form a middle blanking channel (6) and two outer side spaces, and a driving device is arranged in the outer side spaces.

4. The weightless quantitative bagging device according to claim 3, wherein: the driving device is a first air cylinder (9), and the root (42) of the material taking turning plate (4) is pivoted at the bottom of the vertical plate (14) and connected to the first air cylinder (9).

5. The non-weighing quantitative bagging device according to claim 1, wherein: the shape of the cylinder body (15) or the flange (7) is spindle-shaped, square, round or oval.

6. The weightless quantitative bagging device according to claim 3, wherein: the drive is locked on the upper fixing plate (8) by means of a screw.

7. The non-weighing quantitative bagging device according to claim 1, wherein: and a pair of bag clamping mechanisms are symmetrically arranged on the outer side of the cylinder (15), and each bag clamping mechanism comprises a pair of clamping blocks (13) and a second cylinder (10).

8. The weightless quantitative bagging apparatus according to claim 7, wherein: the clamping block (13) and the second air cylinder (10) are pivoted on the flange (7) through a pair of brackets (12), and the two pairs of brackets (12) are connected through a connecting rod (11).

9. The weightless quantitative bagging apparatus according to claim 8, wherein: soft bands are arranged at the bottoms of the two pairs of brackets (12).

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