Quantitative distributing valve

Abstract

The utility model discloses a quantitative distributing valve which comprises a shell, a feeding port is formed in the middle of the top end of the shell, and two discharging ports are formed in the bottom of the shell. A material distributing baffle capable of reciprocating in the length direction of the shell is arranged in the shell, and materials in the feeding port are quantitatively conveyed to one or two of the two discharging ports in the reciprocating motion process of the material distributing baffle. Compared with the prior art, the material distributing baffle is controlled to move through the speed reducing motor, so that materials can be fed to any discharge hole below at the same time, and can also be fed to two discharge holes at the same time; the position of the baffle is controlled through the encoder, so that materials at the feeding port at the upper end can be distributed into the two discharging ports at the lower end according to the proportion, and the material conveying proportion problem of some complex processes is solved.

Description

Technical Field

[0001] The utility model relates to the field of belt conveyor feeding, in particular to a quantitative material distribution valve. Background Art

[0002] Belt conveyor is a kind of material conveying equipment widely used in various industries. It has the advantages of high speed, stable operation, low noise, and uphill and downhill transmission. In some production processes, materials need to be transported in two directions during the material transfer process of the belt conveyor. When encountering this situation, the existing method is to use a three-way funnel with a flap valve to realize the conveying of materials in two directions. However, the existing three-way funnel itself is relatively high and occupies a large space, and cannot be used in small factories.

[0003] Chinese patent application number CN201410112692.9 discloses a belt conveyor head material dividing device, including a belt conveyor bracket, a conveying belt is installed on the belt conveyor, a first guide rod support and a second guide rod support are respectively installed on the belt conveyor bracket on both sides of the end of the belt conveying direction, a guide rod is installed between the first guide rod support and the second guide rod support, the guide rod is located above the belt, a dividing plate is installed on the guide rod, the dividing plate can slide along the guide rod, the dividing plate is connected to the telescopic rod end of the power cylinder, the power cylinder is installed on the first guide rod support, a dividing box is arranged at the end of the belt conveying direction, the dividing box is connected to the belt conveyor bracket, and two discharge ports are arranged at the lower part of the dividing box.

[0004] The above-mentioned material dividing device can only divide materials to two material outlets at the same time through the material dividing plate, and cannot quantitatively feed materials to one of the material outlets or both of the material outlets at the same time; and its structure is complicated. Summary of the invention

[0005] The purpose of the utility model is to solve the deficiencies in the prior art and provide a quantitative material dispensing valve.

[0006] In order to achieve the above-mentioned purpose, the utility model is implemented according to the following technical scheme:

[0007] A quantitative dispensing valve comprises a shell, a feed port is provided in the middle of the top of the shell, and two discharge ports are provided at the bottom of the shell; a dispensing baffle which can reciprocate in the length direction of the shell is provided in the shell, and the dispensing baffle quantitatively transports the material in the feed port to one or two of the two discharge ports during the reciprocating motion.

[0008] Furthermore, the material distribution baffle includes two side baffles and two inclined baffles, the top ends of the two inclined baffles are fixedly connected, and the two ends of the two inclined baffles are fixed on the inner end surfaces of the two side baffles; the outer walls of the two side baffles are provided with U-shaped slides, and the inner walls on both sides of the shell are provided with slide rails matching the U-shaped slides, and a driving mechanism for driving the material distribution baffle to reciprocate is provided on the outside of one end of the shell.

[0009] Furthermore, the driving mechanism includes a reduction motor fixed outside one end of the shell, a transmission shaft is axially fixed to the end of the output shaft of the reduction motor, and both ends of the transmission shaft are installed at both ends in the width direction of one end of the shell through bearing seats. Two gears are fixed on the transmission shaft, and a U-shaped frame is fixed to the outer wall of one end of the reduction motor on the two side baffles. A through hole is opened on the outer wall of one end of the shell for the front end of the U-shaped frame to pass through, and racks are respectively fixed to the lower end surfaces of the two ends of the U-shaped frame, and the two racks are meshed with the two gears on the transmission shaft.

[0010] Furthermore, an encoder is installed at the end of the transmission shaft, and the encoder is connected to the controller of the reduction motor.

[0011] Furthermore, the angle between the two inclined baffles is 60 degrees.

[0012] Furthermore, a trapezoidal boss is provided between the two discharge ports.

[0013] Furthermore, inspection doors are provided at both ends of the shell.

[0014] Furthermore, mounting supports are provided on both sides of the two discharge ports at the bottom of the shell.

[0015] Compared with the prior art, the utility model controls the movement of the material distribution baffle through a reduction motor, which can not only feed materials to any discharge port below at the same time, but also feed materials to two discharge ports at the same time; by controlling the position of the baffle through an encoder, the material at the upper feed port can be proportionally distributed to the two discharge ports at the lower end, solving the problem of material conveying ratio in some complex processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is a schematic diagram when the material distribution baffle moves to the far left.

[0018] Figure 3 It is a side view of the utility model.

[0019] Figure 4 It is a top view of the utility model.

[0020] Figure 5 for Figure 3 Enlarged view of point A.

[0021] Figure 6 This is the front view of the material distribution baffle.

[0022] Figure 7 This is a schematic diagram of the structure of the material distribution baffle after removing one of the side baffles. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] like Figure 1-Figure 7 As shown, this embodiment exemplarily shows a quantitative dosing valve, including a shell 1, a feed port 2 is opened in the middle of the top of the shell 1, and two discharge ports 3 are arranged at the bottom of the shell 1; a dosing baffle 5 which can reciprocate in the length direction of the shell 1 is arranged in the shell 1, and the dosing baffle 5 quantitatively transports the material in the feed port 2 to one or two of the two discharge ports 3 during the reciprocating motion. In order to facilitate the discharge of materials, a trapezoidal boss 4 is arranged between the two discharge ports 3.

[0025] like Figure 5 , Figure 6 and Figure 7 As shown, the material dividing baffle 5 includes two side baffles 51 and two inclined baffles 52. The top ends of the two inclined baffles 52 are fixedly connected. The angle between the two inclined baffles 52 is 60 degrees. The two ends of the two inclined baffles 52 are fixed on the inner end surfaces of the two side baffles 51. The outer walls of the two side baffles 51 are provided with U-shaped slideways 53, and the inner walls on both sides of the shell 1 are provided with slide rails 10 matched with the U-shaped slideways 53. A driving mechanism for driving the reciprocating motion of the material dividing baffle is provided on the outside of one end of the shell 1. The reciprocating motion of the material dividing baffle 5 is driven by the driving mechanism, so that the two discharge ports 3 can be divided.

[0026] Specifically, the driving mechanism includes a reduction motor 16 fixed outside one end of the shell 1, and a transmission shaft 9 is axially fixed to the output shaft end of the reduction motor 16. Both ends of the transmission shaft 9 are installed at both ends of the width direction of one end of the shell 1 through a bearing seat 12. Two gears 8 are fixed on the transmission shaft 9, and a U-shaped frame 6 is fixed to the outer wall of the two side baffles near one end of the reduction motor 16. A through hole is opened on the outer wall of one end of the shell 1 for the front end of the U-shaped frame to pass through. Racks 7 are respectively fixed to the lower end surfaces of the two ends of the U-shaped frame 6, and the two racks 7 are meshed with the two gears 8 on the transmission shaft 9; when the reduction motor 16 rotates, it drives the gear 8 on the transmission shaft 9 to rotate, and then drives the rack 7 to make a linear motion, so that the material distribution baffle 5 can be realized. Make a linear motion in the length direction inside the shell 1.

[0027] like Figure 3As shown, in some embodiments, an encoder 17 is installed at the end of the transmission shaft 9, and the encoder 17 is connected to the controller of the reduction motor 16. The reduction motor 16 adopts a servo motor. It should be noted that the installation of the encoder 17 refers to the conventional installation of a servo motor encoder, which will not be repeated in this embodiment, so as to achieve precise control of the forward and reverse rotation of the servo motor, that is, precise control of the displacement of the material distribution baffle 5.

[0028] In actual use, in order to facilitate the maintenance of the inner wall of the shell 1, maintenance doors 15 are provided at both ends of the shell 1; in order to install the entire device on the conveyor, mounting brackets 11 are provided on both sides of the two discharge ports 3 at the bottom of the shell 1.

[0029] When in use, firstly, the whole device is installed at the feeding end of the conveyor by installing the support 11, so that the discharge port 3 below it is respectively located above the two conveyors, and the controller of the reduction motor 16 is used to control the forward or reverse rotation of the reduction motor to drive the material distribution baffle 5 to move in the shell 1, and the precise position of the material distribution baffle 5 is controlled by the encoder 17. For example, when the top of the material distribution baffle 5 is moved to the center position of the feed port 2, the two discharge ports 3 can be divided according to 1:1 after feeding through the feed port 2; Figure 1 In the embodiment, when the dividing baffle 5 continues to move to the left for a distance, the two discharge ports 3 can be controlled to be divided according to a 1:2 ratio; when the dividing baffle 5 continues to move to the left until the top of the dividing baffle is located below the leftmost end of the feed port 2, only the right discharge port 3 can be divided; when the dividing baffle 5 moves to the right until the top of the dividing baffle is located below the rightmost end of the feed port 2, only the left discharge port 3 can be divided.

[0030] The technical solution of the present utility model is not limited to the above-mentioned specific embodiments, and all technical variations made according to the technical solution of the present utility model fall within the protection scope of the present utility model.

Claims

1. A quantitative dispensing valve, comprising a housing, a feed inlet is provided in the middle of the top of the housing, and two discharge ports are provided at the bottom of the housing; characterized in that: A material distribution baffle which can reciprocate in the length direction of the shell is arranged in the shell, and the material distribution baffle quantitatively transports the material in the feed port to one or two of the two discharge ports during the reciprocating motion.

2. The quantitative dispensing valve according to claim 1, characterized in that: The material distribution baffle includes two side baffles and two inclined baffles. The top ends of the two inclined baffles are fixedly connected, and the two ends of the two inclined baffles are fixed on the inner end surfaces of the two side baffles. The outer walls of the two side baffles are provided with U-shaped slides, and the inner walls on both sides of the shell are provided with slide rails matching the U-shaped slides. A driving mechanism for driving the material distribution baffle to reciprocate is provided on the outside of one end of the shell.

3. The quantitative dispensing valve according to claim 2, characterized in that: The driving mechanism includes a reduction motor fixed outside one end of the shell, a transmission shaft is axially fixed to the end of the output shaft of the reduction motor, and both ends of the transmission shaft are installed at both ends in the width direction of one end of the shell through bearing seats. Two gears are fixed on the transmission shaft, and a U-shaped frame is fixed to the outer wall of one end of the two side baffles near the reduction motor. A through hole is opened on the outer wall of one end of the shell for the front end of the U-shaped frame to pass through, and racks are respectively fixed to the lower end surfaces of the two ends of the U-shaped frame, and the two racks are meshed with two teeth on the transmission shaft.

4. The quantitative dispensing valve according to claim 3, characterized in that: An encoder is installed at the end of the transmission shaft, and the encoder is connected to the controller of the reduction motor.

5. The quantitative dispensing valve according to claim 2, characterized in that: The included angle between the two inclined baffles is 60 degrees.

6. The quantitative dispensing valve according to claim 1, characterized in that: A trapezoidal boss is arranged between the two discharge ports.

7. The quantitative dispensing valve according to claim 1, characterized in that: Both ends of the shell are provided with inspection doors.

8. The quantitative dispensing valve according to claim 1, characterized in that: Mounting supports are arranged on both sides of the two discharge ports at the bottom of the shell.

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