Bidirectional blanking hopper capable of finely feeding for flaker

Abstract

The utility model relates to the technical field of material conveying, and discloses a two-way blanking hopper capable of fine feeding for a flaker, which comprises a blanking hopper communicated with the flaker, a discharge port is arranged at the bottom of the blanking hopper, a plurality of blanking pipes are fixedly connected with the discharge port of the blanking hopper, and the blanking pipes are communicated with the blanking hopper. A first valve used for controlling the discharging hopper to be communicated with the single discharging pipe is arranged outside a discharging opening of the discharging hopper, and the first valve is connected with a first control assembly used for driving the first valve to move. The discharging pipe comprises a first discharging pipe and a second discharging pipe, a second valve is arranged in the first discharging pipe, and the second valve comprises a second valve body and a third valve body; the technical problem that a discharging hopper with a fine feeding function is high in configuration cost is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a bidirectional lower hopper of a flaking machine capable of fine feeding. Background Art

[0002] The flake machine is a crystallization equipment, also known as "caustic soda flake machine" in caustic soda flake production, which is used to make caustic soda flakes from high-temperature and high-concentration liquid caustic soda. After the caustic soda flakes are produced by the flake machine, they are transported to the packaging machine through the hopper. In order to ensure the uniform weight of the packaged products, the hopper needs to accurately feed the weighing device;

[0003] For example, the Chinese patent application number 202222545655.X, “A feeding system for a packaging machine with automatic compensation feeding”, is provided with two feeding channels, a screw conveyor and a compensation feeding pipe, for coarse feeding and fine feeding respectively;

[0004] However, in order to ensure that the feed pipe can simultaneously realize rapid coarse feeding and accurate fine feeding, the device has two channels respectively, and one discharge port needs to be equipped with two conveying channels. When it is necessary to equip the flaking machine with multiple discharge ports, the configuration cost of the equipment is relatively high. Utility Model Content

[0005] The utility model aims to provide a bidirectional lower hopper of a flaker capable of fine feeding, so as to solve the technical problem that the configuration cost of the lower hopper with the function of fine feeding is relatively high.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bidirectional lower hopper for fine feeding of a flaker, comprising a lower hopper connected to the flaker, a discharge port is provided at the bottom of the lower hopper, a plurality of discharge pipes are fixedly connected to the discharge port of the lower hopper, a first valve for controlling the connection between the lower hopper and a single discharge pipe is provided outside the discharge port of the lower hopper, and the first valve is connected to a first control component for driving the movement of the first valve;

[0007] The feeding pipe includes a first feeding pipe and a second feeding pipe, a second valve is provided in the first feeding pipe, the second valve includes a second valve plate and a third valve plate, the second valve plate and the third valve plate are symmetrically arranged, a second rotating shaft is provided at the farthest end of the second valve plate from the third valve plate, and a third rotating shaft is provided at the farthest end of the third valve plate from the second valve plate, both ends of the second rotating shaft and the third rotating shaft pass through the feeding pipe and are rotatably connected to the feeding pipe, and the second rotating shaft and the third rotating shaft are located in the same horizontal plane.

[0008] The principles and advantages of this solution are: multiple discharge pipes can be set according to the packaging needs of flake caustic soda or the production needs of the flake machine, and the first valve controls the connection between the discharge hopper and the discharge pipes to realize one flake machine feeding to multiple locations; rapid coarse feeding is realized by fully opening the second valve downward, and fine feeding is realized by closing the second valve plate and the third valve plate with a small gap between them, and the switching between coarse feeding and fine feeding can be realized only by changing the posture of the valve in the same channel. The material is transported in the discharge hopper and the discharge pipe by its own gravity. This solution has a simple structure and low configuration cost, can realize multi-directional feeding of the flake machine, and makes the use of the flake machine more flexible.

[0009] As an improvement, there are two feeding pipes, the first valve is located between the two feeding pipes, the first valve comprises a first valve plate and a first rotating shaft, the first valve plate is vertically arranged, the first rotating shaft is fixedly connected to the lower end of the first valve plate, and both ends of the first rotating shaft penetrate the feeding pipe and are rotatably connected to the feeding pipe;

[0010] The first control component includes a cylinder and a cylinder swing arm, the telescopic rod of the cylinder is rotatably connected to one end of the cylinder swing arm, the other end of the cylinder swing arm is fixedly connected to one end of the first rotating shaft, and the cylinder body of the cylinder is movably connected to the outer wall of the discharge pipe.

[0011] The beneficial effect of this improvement is that the extension and retraction of the cylinder causes the cylinder swing arm to swing around the first rotating shaft to control the rotation of the first rotating shaft, thereby controlling the flipping of the first valve plate around the first rotating shaft. When the first valve plate flips to completely cover the upper end of a certain discharge pipe, allowing the material in the discharge hopper to completely fall into another discharge pipe, the first valve realizes the connection between the other discharge pipe and the discharge hopper, and vice versa, realizing the switching of different discharge pipes.

[0012] As an improvement, the sum of the lengths of the second valve plate and the third valve plate is equal to the diameter length of the first feed pipe.

[0013] The beneficial effect of this improvement is that the second valve plate and the third valve plate can be turned over at the same frequency, so that the opening and closing speed of the second valve is accelerated, thereby improving production efficiency.

[0014] As an improvement, the discharge pipe is provided with a gear set for driving the movement of the second valve, the gear set comprising two rotating shaft gears and two driven gears, the two rotating shaft gears are respectively fixedly sleeved on the second rotating shaft and the third rotating shaft, the two driven gears are respectively meshed with the two rotating shaft gears, and the two driven gears are meshed with each other; any one of the gears in the gear set is connected to a servo motor.

[0015] The beneficial effect of this improvement is that the second valve plate and the third valve plate are synchronously flipped by the transmission of the gear set, ensuring a high synchronization rate between the second valve plate and the third valve plate, and the opening and closing drive of the second valve only needs to be equipped with one servo motor, further reducing the configuration cost.

[0016] Since the material hopper and the material pipe are transporting materials while the flaker is in continuous production, if the material pipe is in a fine feeding state at this time, the material transportation speed will slow down. As the flaker continues to produce, the material that fails to pass through the second valve will accumulate on the second valve plate and the third valve plate. Due to the limitations of the production environment, there is a phenomenon that the internal space of the material hopper and the material pipe cannot be enlarged or a temporary storage space such as a silo cannot be set. In order to avoid material overflow, this solution provides an improved method to enhance the stacking capacity of the second valve plate and the third valve plate.

[0017] As an improvement, the sum of the lengths of the second valve plate and the third valve plate is greater than the diameter of the first feed pipe.

[0018] The beneficial effect of this improvement is: the length of the second valve plate and the third valve plate is lengthened so that the second valve plate and the third valve plate can cooperate with each other to achieve fine feeding with a small gap at multiple flipping angles, thereby increasing the temporary storage space of the material above the second valve plate and the third valve plate, improving the stacking capacity of the second valve plate and the third valve plate, and leaving sufficient time for fine feeding.

[0019] As an improvement, the second rotating shaft and the third rotating shaft are respectively connected to a servo motor.

[0020] The beneficial effect of this improvement is to avoid interference between the second valve plate and the third valve plate due to flipping, and the second valve plate and the third valve plate are driven separately by two servo motors so as to operate independently.

[0021] As an improvement, the areas in the discharge hopper and the discharge pipe that come into contact with the materials are sprayed or inlaid with a protective layer with a smooth surface for preventing corrosion and crystallization.

[0022] As an improvement, the protective layer is made of silicon crystal, Teflon or CPVC sheet.

[0023] The beneficial effects of this improvement are: preventing the material from crystallizing inside the structure, affecting the action of each valve and the subsequent weighing accuracy, and extending the service life of the structure, preventing the crystallized material from affecting the quality of the finished product.

[0024] As an improvement, the first valve plate, the second valve plate and the third valve plate are gradually thinned from one side where the first rotating shaft, the second rotating shaft or the third rotating shaft is located to the other side.

[0025] The beneficial effects of this improvement are: making the valve plate fit more closely and making the material slide more smoothly along the surface of the valve plate.

[0026] As an improvement, the discharge pipe is provided with a plurality of observation doors for observing the working status of the first valve or the second valve.

[0027] The beneficial effect of this improvement is that the observation door makes it easier for staff to monitor, maintain and adjust the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0029] Figure 2 This is a schematic diagram of the first valve structure of an embodiment of the utility model.

[0030] Figure 3 This is a schematic diagram of the second valve structure of an embodiment of the utility model.

[0031] Figure 4 This is a schematic diagram of the second valve structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0032] The following is further described in detail through specific implementation methods:

[0033] The figure marks in the drawings of the specification include: a feed hopper 1, a first feed pipe 2, a second feed pipe 3, a first valve plate 4, a first rotating shaft 5, a cylinder 6, a cylinder swing arm 7, a second valve plate 8, a second rotating shaft 9, a rotating shaft gear 10, a driven gear 11, a servo motor 12, an observation door 13, a third valve plate 14 and a third rotating shaft 15.

[0034] Example 1

[0035] Basically as attached Figure 1 As shown, a bidirectional lower hopper for fine feeding of a flaker includes a lower hopper 1, a first lower feeding pipe 2 and a second lower feeding pipe 3. The upper end of the lower hopper 1 is a feeding port connected to the flaker, and the lower end of the lower hopper 1 is a discharging port connected to the lower feeding pipe. The discharging port of the lower hopper 1 is fixedly welded to the upper ends of the first lower feeding pipe 2 and the second lower feeding pipe 3 so that the lower hopper 1 is connected to the first lower feeding pipe 2 and the second lower feeding pipe 3 respectively.

[0036] As attached Figure 2 As shown, a first valve for controlling the connection between the lower hopper 1 and a single lowering pipe is provided outside the discharge port of the lower hopper 1, and the first valve is connected to a first control component for driving the movement of the first valve;

[0037] The first valve is located between the first feeding pipe 2 and the second feeding pipe 3. The first valve includes a first valve plate 4 and a first rotating shaft 5. The first valve plate 4 is vertically arranged. The first rotating shaft 5 is fixedly welded to the lower end of the first valve plate 4. Both ends of the first rotating shaft 5 penetrate the feeding pipe. Both ends of the first rotating shaft 5 are rotatably connected to the wall of the feeding pipe by bearings.

[0038] The first control component includes a cylinder 6 and a cylinder swing arm 7. The cylinder body of the cylinder 6 is hinged on the outer wall of the discharge pipe. The telescopic rod of the cylinder 6 is hinged to one end of the cylinder swing arm 7 by a pin. The other end of the cylinder swing arm 7 clamps one end of the first rotating shaft 5.

[0039] As attached Figure 3 As shown, a second valve is provided in the first feeding pipe 2, and the second valve is composed of a double valve plate that can be turned up and down. The second valve includes a second valve plate 8 and a third valve plate 14, and the second valve plate 8 and the third valve plate 14 are symmetrically arranged. A second rotating shaft 9 is welded to the farthest end of the second valve plate 8 from the third valve plate 14, and a third rotating shaft 15 is welded to the farthest end of the third valve plate 14 from the second valve plate 8. Both ends of the second rotating shaft 9 and the third rotating shaft 15 pass through the pipe wall of the first feeding pipe 2, and both ends of the second rotating shaft 9 and the third rotating shaft 15 are rotatably connected to the pipe wall of the first feeding pipe 2 by bearings, and the second rotating shaft 9 and the third rotating shaft 15 are located in the same horizontal plane; the sum of the lengths of the second valve plate 8 and the third valve plate 14 is equal to the pipe diameter length of the first feeding pipe 2. When the second valve is closed, the second valve plate 8, the third valve plate 14, the second rotating shaft 9 and the third rotating shaft 15 jointly close the first feeding pipe 2, and the second valve plate 8 and the third valve plate 14 are parallel and located in the same plane.

[0040] The inner wall of the first discharge pipe 2 is provided with a gear set for driving the movement of the second valve, and the gear set includes two rotating shaft gears 10 and two driven gears 11. The two rotating shaft gears 10 are fixedly sleeved on the second rotating shaft 9 and the third rotating shaft 15 respectively, and the two driven gears 11 are respectively meshed with the two rotating shaft gears 10, and the two driven gears 11 are meshed with each other; any one of the two rotating shaft gears 10 and the two driven gears 11 is connected to a servo motor 12. In this embodiment, the servo motor 12 is connected to the rotating shaft gear 10 where the second rotating shaft 9 is located.

[0041] The material contact areas in the discharge hopper 1 and the discharge pipe are sprayed or inlaid with a protective layer, which is made of a corrosion-resistant and crystallization-resistant material with a smooth surface, such as silicon crystal, Teflon or CPVC sheet, etc.; a plurality of observation doors 13 are provided on the discharge pipe, and the observation doors 13 are used to observe the working status of the first valve or the second valve.

[0042] The specific implementation process is as follows: the material enters from the upper end of the lower hopper 1 and falls to the lower end outlet of the lower hopper 1 by gravity;

[0043] In this embodiment, the cylinder 6 is arranged so that the first valve plate 4 blocks the first discharge pipe 2 when it is in the extended state; and the first valve plate 4 blocks the second discharge pipe 3 when the cylinder 6 is in the contracted state. At this time, if material needs to be supplied to the first discharge pipe 2, the cylinder 6 is controlled to contract, and the lower end discharge port of the discharge hopper 1 is only connected to the first discharge pipe 2, and the material falls into the first discharge pipe 2 along with the discharge hopper 1 by gravity.

[0044] At this time, fast rough feeding is performed first, the servo motor 12 drives the second rotating shaft 9 to rotate, and the gear group drives the second rotating shaft 9 and the third rotating shaft 15 to rotate at the same frequency, and the second valve plate 8 and the third valve plate 14 are turned down, and the second valve plate 8 and the third valve plate 14 are close to the inner wall of the first feeding pipe 2. At this time, the first feeding pipe 2 is fully opened, and the material falls through the second valve without obstruction with gravity;

[0045] When the falling amount of the material reaches the threshold range, the feeding mode needs to be switched to fine feeding, and the servo motor 12 drives the second rotating shaft 9 to rotate in the reverse direction, and the second valve plate 8 and the third valve plate 14 flip upward, and the second valve plate 8 and the third valve plate 14 are closed to the middle and a small gap is left between the second valve plate 8 and the third valve plate 14 for a small amount of material to pass through, thereby realizing fine feeding.

[0046] When the second valve is in the fine feeding state, the second valve plate 8 and the third valve plate 14 have two position states, as shown in the attached figure. Figure 3 As shown, the second valve plate 8 and the third valve plate 14 can first reach a closed state after turning upward, and then continue to turn upward to leave a small gap between the two; or during the turning upward process of the second valve plate 8 and the third valve plate 14, before reaching the closed state, the small gap between the second valve plate 8 and the third valve plate 14 meets the precise feeding requirement, and the turning can be stopped to reach the fine feeding state;

[0047] The difference between the two lies in the different sizes of space available for material accumulation above the second valve plate 8 and the third valve plate 14, and the different action cycles of the second valves of the second valve plate 8 and the third valve plate 14 when switching from coarse feeding to fine feeding; the two position states of the second valve for fine feeding can be specifically set according to the material discharge requirements.

[0048] Example 2

[0049] As attached Figure 4 As shown, the difference from Example 1 is that the second valve plate 8 and the third valve plate 14 are both lengthened, and the sum of the lengths of the second valve plate 8 and the third valve plate 14 is greater than the diameter of the first discharge pipe 2, so that when the second valve is closed, the second valve plate 8, the third valve plate 14 and the second rotating shaft 9 and the third rotating shaft 15 jointly close the first discharge pipe 2, and the second valve plate 8 and the third valve plate 14 are located in different planes, and the second valve plate 8 and the third valve plate 14 partially overlap; the second rotating shaft 9 and the third rotating shaft 15 are each connected to a servo motor 12.

[0050] The first valve plate 4 , the second valve plate 8 , and the third valve plate 14 are all gradually thinned from one side where the first rotating shaft 5 , the second rotating shaft 9 , or the third rotating shaft 15 is located to the other side.

[0051] The specific implementation process is as follows: the second valve plate 8 and the third valve plate 14 are controlled by two servo motors 12 respectively, and the second valve plate 8 and the third valve plate 14 are flipped one after the other to avoid motion interference. The lengthened second valve plate 8 and the third valve plate 14 can maintain a small gap that meets the requirements of precise feeding in a variety of position states.

[0052] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A bidirectional lower hopper for fine feeding of a flaker, comprising a lower hopper connected to the flaker, a discharge port being provided at the bottom of the lower hopper, characterized in that: The discharge port of the lower hopper is fixedly connected to a plurality of lowering pipes, and a first valve for controlling the communication between the lower hopper and a single lowering pipe is arranged outside the discharge port of the lower hopper, and the first valve is connected to a first control component for driving the movement of the first valve; The feeding pipe includes a first feeding pipe and a second feeding pipe, a second valve is provided in the first feeding pipe, the second valve includes a second valve plate and a third valve plate, the second valve plate and the third valve plate are symmetrically arranged, a second rotating shaft is provided at the farthest end of the second valve plate from the third valve plate, and a third rotating shaft is provided at the farthest end of the third valve plate from the second valve plate, both ends of the second rotating shaft and the third rotating shaft pass through the feeding pipe and are rotatably connected to the feeding pipe, and the second rotating shaft and the third rotating shaft are located in the same horizontal plane.

2. A two-way hopper for fine feeding of a flaker according to claim 1, characterized in that: There are two feeding pipes, the first valve is located between the two feeding pipes, the first valve comprises a first valve plate and a first rotating shaft, the first valve plate is vertically arranged, the first rotating shaft is fixedly connected to the lower end of the first valve plate, and both ends of the first rotating shaft pass through the feeding pipe and are rotatably connected to the feeding pipe; The first control component includes a cylinder and a cylinder swing arm, the telescopic rod of the cylinder is rotatably connected to one end of the cylinder swing arm, the other end of the cylinder swing arm is fixedly connected to one end of the first rotating shaft, and the cylinder body of the cylinder is movably connected to the outer wall of the discharge pipe.

3. The two-way lower hopper of a flaker capable of fine feeding according to claim 2 is characterized in that: The sum of the lengths of the second valve plate and the third valve plate is equal to the diameter of the first feed pipe.

4. A two-way lower hopper for fine feeding of a flaker according to claim 3, characterized in that: The discharge pipe is provided with a gear set for driving the movement of the second valve, and the gear set includes two rotating shaft gears and two driven gears. The two rotating shaft gears are respectively fixedly sleeved on the second rotating shaft and the third rotating shaft, and the two driven gears are respectively meshed with the two rotating shaft gears, and the two driven gears are meshed with each other; any gear in the gear set is connected to a servo motor.

5. The two-way lower hopper of a flaker capable of fine feeding according to claim 2, characterized in that: The sum of the lengths of the second valve plate and the third valve plate is greater than the diameter of the first feed pipe.

6. A two-way lower hopper for fine feeding of a flaker according to claim 5, characterized in that: The second rotating shaft and the third rotating shaft are respectively connected to a servo motor.

7. A two-way down hopper for fine feeding of a flaker according to claim 4 or 6, characterized in that: The areas in the material hopper and the material pipe that are in contact with the materials are sprayed or inlaid with a protective layer with a smooth surface for corrosion and crystallization prevention.

8. A two-way lower hopper for fine feeding of a flaker according to claim 7, characterized in that: The protective layer is made of silicon crystal, Teflon or CPVC sheet.

9. A two-way down hopper capable of fine feeding of a flaker according to claim 8, characterized in that: The first valve plate, the second valve plate and the third valve plate are gradually thinned from one side where the first rotating shaft, the second rotating shaft or the third rotating shaft is located to the other side.

10. A two-way lower hopper capable of fine feeding of a flaker according to claim 9, characterized in that: The discharge pipe is provided with a plurality of observation doors for observing the working status of the first valve or the second valve.

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