CN210312161U - Gate valve for metering - Google Patents
Gate valve for metering Download PDFInfo
- Publication number
- CN210312161U CN210312161U CN201921282356.3U CN201921282356U CN210312161U CN 210312161 U CN210312161 U CN 210312161U CN 201921282356 U CN201921282356 U CN 201921282356U CN 210312161 U CN210312161 U CN 210312161U
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- plug board
- flow equalizing
- packing box
- gate valve
- packing
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Abstract
The utility model belongs to the technical field of measurement, transport, specifically be a gate valve for measurement, including setting up packing box on the valve body, passing picture peg and the picture peg drive arrangement that packing box inserted the valve body intracavity, the key lies in: the plug board, the matched packing box and the plug board driving device are provided with two groups, and the plug board driving device comprises a flow equalizing plug board group arranged at an inlet side and a stop plug board group arranged at an outlet side, flow equalizing blanking holes are distributed in the flow equalizing plug board, and the stop plug board is a hole-free plane thin board. According to the gate valve, the flow equalizing gate and the stop gate can be opened to perform rapid large feeding; the flow equalizing plugboard is closed, the materials are uniformly discharged through the flow equalizing discharge hole, the flow and the flow speed are stable, and the weighing precision is convenient to control; and after the weighing requirement is met, the stop inserting plate is closed to complete weighing and batching, and staged, high-speed and high-precision blanking is realized.
Description
Technical Field
The utility model belongs to the technical field of measurement, transport, relate to the valve that automatic blending used, concretely relates to pneumatic push-pull valve with the staged blanking that the cooperation of measurement hopper was used.
Background
In the production of a batch of a powdery material, a weighing operation is usually carried out using a weighing hopper. The feeding and discharging ends of the metering hopper are provided with valves to assist in controlling feeding, discharging and weighing. The weighing of the measuring hopper has two ways, one is weight increase and the other is weight loss. The weight increment is that the blanking amount of the metering hopper is controlled by a valve and a weighing device, and the weight decrement is that the blanking amount of the metering hopper is controlled by the valve and the weighing device. The valve opening is large, the blanking speed is high, but the precision is difficult to control, the valve opening is small, the control precision is facilitated, but the blanking speed is low, and the production efficiency is low. The common valve only has opening and closing operations, the opening of the valve is not adjustable, the corresponding valve needs to be prepared according to the metering precision, more equipment needs to be equipped, and the production cost is high. Although the control valve with the adjustable valve opening degree can coordinate speed and precision, the structure and the electrical control are complex, and the manufacturing cost is high.
Disclosure of Invention
The utility model discloses a compromise packing speed and precision, designed a pneumatic push-pull valve, realized staged, high speed, high accuracy blanking through setting up double insertion plate on the valve body.
The technical scheme of the utility model is that: the utility model provides a gate valve for measurement, includes the packing box of setting on the valve body, passes the picture peg and the picture peg drive arrangement of packing box insertion valve body intracavity, and the key lies in: the plug board, the matched packing box and the plug board driving device are provided with two groups, and the plug board driving device comprises a flow equalizing plug board group arranged at an inlet side and a stop plug board group arranged at an outlet side, flow equalizing blanking holes are distributed in the flow equalizing plug board, and the stop plug board is a hole-free plane thin board.
According to the gate valve, two groups of gate plates are arranged, a flow equalizing gate plate is adopted on the feeding side, and a stop gate plate is adopted on the discharging side. The flow equalizing plugboard and the cut-off plugboard are opened to carry out rapid large feeding; the flow equalizing plugboard is closed, the materials are uniformly discharged through the flow equalizing discharge hole, the flow and the flow speed are stable, and the weighing precision is convenient to control; and after the weighing requirement is met, closing the stop inserting plate to finish weighing and batching.
Furthermore, according to the form and the property of the materials, the uniform flow equalizing blanking holes of the uniform flow equalizing plugboard can adopt uniformly distributed round holes, square holes or narrow slit-shaped holes.
Furthermore, in order to realize sealing and prevent materials from being taken out of the valve body, packing is arranged in each packing box and tightly pressed on two sides of the flow equalizing insertion plate or the stop insertion plate to form a clamping type sealing structure. The packing can prevent the material from being brought out along with the pulling of the inserting plate.
Furthermore, two pressing plates are arranged in each packing box, are clamped on two sides of the packing and form a packing pressing structure by means of jackscrews arranged on the packing box. The distance between the pressing plate and the packing can be adjusted by the tightness of the jackscrew so as to tightly press the packing, so that the packing is tightly attached to the flow equalizing plugboard or the cut-off plugboard, and the sealing is realized.
Further, in order to facilitate blanking, a vibrator is arranged on the valve body. The vibrator can assist blanking.
Furthermore, in order to facilitate installation and sealing, one end of the packing box is mutually attached and positioned on the valve body, and the other end of the packing box is fixed on the supporting frame. The setting of carriage is convenient for install packing drive arrangement.
Furthermore, the plug board driving device is an air cylinder fixed on the supporting frame, and an air rod of the air cylinder is positioned in the supporting frame and is connected with the flow equalizing plug board or the cut-off plug board. The cylinder drives, acts rapidly, is convenient for control, low in manufacturing cost.
Furthermore, in order to facilitate installation, the flow equalizing insertion plate or the stop insertion plate is connected with the gas pole through a bolt, and the connecting end is positioned outside the packing box. The arrangement is also beneficial to replacing the flow equalizing plugboard or the cut-off plugboard, and is convenient for maintenance.
The utility model has the advantages that: this plug valve adopts the picture peg that flow equalizes and ends the picture peg cooperation blanking, can accomplish blanking work according to quick and accurate segmentation, compromises blanking speed and weighing precision to realize stage by stage, high accuracy, high speed unloading with the help of weighing sensor. 2. The whole machine has simple and compact structure, ingenious design, convenient installation and low manufacturing cost. 3. The gate valve can be used in a batching system with batching range of 0-100kg, batching precision higher than +/-10 g and time requirement within 5 minutes.
Drawings
FIG. 1 is a schematic structural view of a gate valve according to an embodiment;
FIG. 2 is a schematic diagram of the structure of a mid-board, a packing, and a pressure plate according to an embodiment;
FIG. 3 is a schematic view of the shape of the uniform flow blanking holes in the first, second and third embodiments;
in the attached drawings, 1 represents a valve body, 2 represents a packing box, 3 represents a flow equalizing insert plate, 31 represents a flow equalizing blanking hole, 4 represents a stop insert plate, 5 represents a packing, 6 represents a pressure plate, 7 represents a jackscrew, 8 represents a vibrator, 9 represents a support frame, 91 represents an air cylinder, and 92 represents an air rod.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The first embodiment is a gate valve for metering, and is shown in fig. 1, and comprises a cylindrical valve body 1, two packing boxes 2 which are mutually penetrated, attached and welded on the valve body 1, two insertion plates which penetrate through the packing boxes 2 and are inserted into a cavity of the valve body 1, and an insertion plate driving device. The inlet side is provided with a flow equalizing plug board group, and the outlet side is provided with a stopping plug board group. Referring to fig. 1 and fig. 3, the flow equalizing insert plate 3 is distributed with circular flow equalizing blanking holes 31, and the stop insert plate 4 is a non-porous plane thin plate. Referring to fig. 2, a packing 5 is arranged in each packing box 2, and the packing 5 is tightly pressed on two sides of the flow equalizing insertion plate 3 or the cut-off insertion plate 4 to form a clamping type sealing structure. Two pressing plates 6 are arranged in each packing box 2, the two pressing plates 6 are clamped on two sides of the packing 5, and a packing 5 pressing structure is formed by means of jackscrews 7 arranged on the packing box 2. The other end of each packing box 2 is fixed on the support frame 9, the inserting plate driving device is a cylinder 91 fixed on the support frame 9, a gas rod 92 of the cylinder 91 is positioned in the support frame 9 and is connected with the flow equalizing inserting plate 3 or the stop inserting plate 4 by means of bolts, and the connecting end is positioned outside the packing box 2. The valve body 1 is also provided with a vibrator 8.
When this push-pull valve is applied to among the feed proportioning system, its theory of operation does: during initial feeding, the cylinder 91 opens the flow equalizing insertion plate 3 and the cut-off insertion plate 4 to perform rapid large feeding; when the set value is reached, the air cylinder 91 of the flow equalizing plugboard group closes the flow equalizing plugboard 3, the materials are uniformly blanked through the flow equalizing blanking hole 31, the flow and the flow speed are stable, and the weighing precision is convenient to control; and after the weighing requirement is met, closing the stop inserting plate 4 to finish weighing and batching. When the material has poor flowability, the vibrator 8 can be turned on to assist blanking.
The second embodiment has a structure substantially the same as that of the first embodiment, except that the flow equalizing blanking hole 31 is a square hole in fig. 3.
The third embodiment is basically the same as the first embodiment, except that the flow equalizing blanking holes 31 are slit-shaped holes as shown in fig. 3.
Claims (8)
1. The utility model provides a gate valve for measurement, includes packing box (2) of setting on valve body (1), passes packing box (2) and inserts picture peg and picture peg drive arrangement of valve body (1) intracavity, its characterized in that: the plug board, the matched packing box (2) and the plug board driving device are provided with two groups, the plug board driving device comprises a flow equalizing plug board group arranged at an inlet side and a stop plug board group arranged at an outlet side, flow equalizing blanking holes (31) are distributed in the flow equalizing plug board (3), and the stop plug board (4) is a hole-free plane thin plate.
2. The metering gate valve as set forth in claim 1, wherein: the flow equalizing blanking holes (31) of the flow equalizing inserting plate (3) are uniformly distributed round holes, square holes or narrow slit-shaped holes.
3. The metering gate valve as set forth in claim 1, wherein: packing (5) are arranged in each packing box (2), and the packing (5) is tightly pressed on two sides of the flow equalizing insertion plate (3) or the stop insertion plate (4) to form a clamping type sealing structure.
4. A metering gate valve as claimed in claim 3 wherein: two pressing plates (6) are arranged in each packing box (2), the two pressing plates (6) are clamped on two sides of the packing (5), and a packing (5) pressing structure is formed by means of jackscrews (7) arranged on the packing box (2).
5. The metering gate valve as set forth in claim 1, wherein: the valve body (1) is provided with a vibrator (8).
6. The metering gate valve as set forth in claim 1, wherein: one end of the packing box (2) is jointed and positioned on the valve body (1) and the other end is fixed on the supporting frame (9).
7. The metering gate valve as set forth in claim 6 wherein: the plug board driving device is an air cylinder (91) fixed on the supporting frame (9), and an air rod (92) of the air cylinder (91) is positioned in the supporting frame (9) and is connected with the flow equalizing plug board (3) or the cut-off plug board (4).
8. The metering gate valve as set forth in claim 7 wherein: the flow equalizing insertion plate (3) or the stop insertion plate (4) is connected with the gas rod (92) through bolts, and the connecting end is positioned outside the packing box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282356.3U CN210312161U (en) | 2019-08-09 | 2019-08-09 | Gate valve for metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282356.3U CN210312161U (en) | 2019-08-09 | 2019-08-09 | Gate valve for metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210312161U true CN210312161U (en) | 2020-04-14 |
Family
ID=70129022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921282356.3U Active CN210312161U (en) | 2019-08-09 | 2019-08-09 | Gate valve for metering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210312161U (en) |
-
2019
- 2019-08-09 CN CN201921282356.3U patent/CN210312161U/en active Active
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