Powder feeding device with quantity control structure at discharge port

Abstract

The utility model provides a powder feeding device with a quantity control structure at a discharge port, which comprises a feeding mechanism, a weighing seat and a dust adsorption frame, and a feeding pipe is arranged at the left upper end of an internal component of the feeding mechanism. The feeding pipe is controlled by an electromagnetic valve to feed powder, and the powder is guided to the upper portion of the weighing base through a first receiving hopper, collected to a transfer groove through a collecting hopper, weighed to be quantitative, then a discharging motor drives the weighing base to rotate clockwise, the lower portion of the weighing base is made to make contact with a starting pressing column to press a start-stop button downwards, and the powder is fed into the weighing base. The sealing plate moves forwards, powder is guided to the position above the material guide plate through the inclined discharging groove, generated fine dust is adsorbed through the dust suction hood, the powder feeding precision can be improved, and the vertical position of the dust suction hood can be adjusted by additionally arranging the feeding mechanism and the dust adsorption frame, adjusting sliding blocks slide in adjusting sliding grooves and enabling nuts to be screwed with fixing studs.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder feeding devices, and particularly relates to a powder feeding device with a metering structure at the discharge port. Background Technique

[0002] Powders refer to powdery materials composed of fine particles. These materials usually have a high specific surface area and thus exhibit unique physical and chemical properties in many industrial and daily applications. Powders are also raw materials for most production products, used for formulation. During production, different amounts of powders are added according to the different requirements of the production products. Therefore, metered feeding is required during production. Inaccurate feeding amounts of powders will affect the mixed production of production products. Some common powder feeding devices control the feeding time of powders through solenoid valves or rotors for powder metering. However, due to the limitations of the devices, there may be differences in their flow rates, resulting in differences between the added amount of powders per unit time and the predetermined amount. This leads to inaccurate powder feeding and mixed differences in production products.

[0003] In summary, there are some problems with powder feeding devices with inaccurate metering during use. Therefore, it is hoped to propose a new structure to solve the above technical problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a powder feeding device with a metering structure at the discharge port to solve the problems mentioned in the above background technique.

[0005] The utility model is realized through the following technical solutions: A powder feeding device with a metering structure at the discharge port includes: a feeding mechanism, a weighing seat, and a dust adsorption frame. At the upper left end of the internal composition of the feeding mechanism, there is a feeding pipe. Below the feeding pipe, there is a first receiving hopper for receiving powders. Below the first receiving hopper, there is a protective shell for reducing the escape of dust. In the middle position on the inner side of the protective shell, there is a weighing seat for controlling the input amount of powders. On the upper surface of the weighing seat, there is a collecting hopper for the natural fall and collection of powders. At the lower right end of the outer side of the protective shell, there is a discharge slot. At the lower end of the inner side of the discharge slot, there is a guide plate integrally provided with the protective shell for guiding powders. Above the guide plate, there is a dust adsorption frame for reducing the escape of dust. On the right side of the feeding pipe, there is an adjusting frame. Below the right side of the guide plate, there is a second receiving hopper.

[0006] As a preferred embodiment, at the lower end of the inner side of the feeding pipe, there is a solenoid valve for assisting the input amount of powders. The middle cylindrical section on the outside of the protective shell is made of a transparent material. At the rear of the protective shell, there is a feeding motor for driving the weighing seat to rotate.

[0007] As a preferred embodiment, the cross-section of the collecting hopper is a trapezoidal structure that is wider at the top and narrower at the bottom. A transfer groove is provided below the collecting hopper, and an inclined discharge groove is provided on the right side of the transfer groove. The right end of the inclined discharge groove is located above the guide plate. The feeding motor drives the weighing seat to rotate, so that the powder in the transfer groove slides to the right through the inclined discharge groove and is introduced into the second receiving hopper through the guide plate.

[0008] As a preferred embodiment, a sealing plate for controlling the export of powder is provided on the inner side of the right end of the inclined discharge groove. A plugging telescopic rod is provided on the front side of the sealing plate, and a control inner hole is provided on the inner side of the front end of the guide plate.

[0009] As a preferred embodiment, a return spring is provided on the inner side of the control inner hole, a starting pressure column is provided on the inner side of the return spring, and a start-stop button for controlling the start and stop of the plugging telescopic rod is provided below the starting pressure column. The start-stop button is an automatically rebounding button. During the rotation of the weighing seat, the starting pressure column is pressed, and the start-stop button is pressed to start the plugging telescopic rod, controlling the sealing plate to move forward to open the inclined discharge groove.

[0010] As a preferred embodiment, a dust suction hood is provided at the lower end of the internal composition of the dust adsorption frame. A dust suction pipe is fixedly connected above the dust suction hood, and the upper end of the dust suction pipe is connected to an external dust suction device.

[0011] As a preferred embodiment, an adjusting slider is provided on the upper front left side of the internal composition of the dust adsorption frame. A fixing screw is fixedly connected above the rear side of the adjusting slider, and a support frame is fixedly connected to the rear side of the adjusting slider;

[0012] An adjusting chute is provided on the lower surface of the adjusting frame, and a fixing through groove is provided behind the adjusting chute. The adjusting slider is movably fitted with the adjusting chute and the fixing screw passes through the fixing through groove and is screwed with a nut. The adjusting slider slides in the adjusting chute and the nut is screwed with the fixing screw, which can adjust the up and down position of the dust suction hood.

[0013] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows: By adding a feeding mechanism and a dust adsorption frame, the feeding pipe controls the powder feeding through an electromagnetic valve and introduces it above the weighing seat through the first receiving hopper, and converges to the transfer groove through the collecting hopper. After weighing to a fixed quantity, the feeding motor drives the weighing seat to rotate clockwise, and the lower part of the weighing seat contacts the starting pressure column to press down the start-stop button, so that the sealing plate moves forward and the powder is introduced above the guide plate through the inclined discharge groove, and the generated fine dust is adsorbed by the dust suction hood, thereby improving the accuracy of powder feeding. By adding a feeding mechanism and a dust adsorption frame, the adjusting slider slides in the adjusting chute and the nut is screwed with the fixing screw, which can adjust the up and down position of the dust suction hood. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is the overall structural schematic diagram of a powder feeding device with a metering structure at the discharge port of the present invention.

[0016] Figure 2 This is the structural schematic diagram of the feeding mechanism in a powder feeding device with a metering structure at the discharge port of the present invention.

[0017] Figure 3 This is the partial sectional schematic diagram of the feeding mechanism in a powder feeding device with a metering structure at the discharge port of the present invention.

[0018] Figure 4 For Figure 3 partial sectional schematic diagram.

[0019] Figure 5 This is the structural schematic diagram of the dust adsorption frame in a powder feeding device with a metering structure at the discharge port of the present invention.

[0020] In the figure, 100 - feeding mechanism, 101 - feed pipe, 102 - solenoid valve, 103 - adjustment frame, 104 - adjustment chute, 105 - fixed through groove, 106 - first receiving hopper, 107 - protective shell, 108 - weighing seat, 109 - collecting hopper, 110 - transfer tank, 111 - inclined discharge chute, 112 - sealing plate, 113 - feeding motor, 114 - guide plate, 115 - starting pressure column, 116 - return spring, 117 - start-stop button, 118 - second receiving hopper;

[0021] 200 - dust adsorption frame, 201 - adjustment slider, 202 - support frame, 203 - fixing stud, 204 - suction pipe, 205 - suction hood. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a powder feeding device with a metering structure at the discharge port, comprising: a feeding mechanism 100, a weighing seat 108, and a dust adsorption frame 200. At the upper left end of the internal composition of the feeding mechanism 100, there is a feeding pipe 101;

[0024] Below the feeding pipe 101, there is a first receiving hopper 106 for receiving powder. Below the first receiving hopper 106, there is a protective shell 107 for reducing the escape of dust. In the middle position on the inner side of the protective shell 107, there is a weighing seat 108 for controlling the input amount of powder. On the upper surface of the weighing seat 108, there is a collecting hopper 109 for the natural fall and collection of powder;

[0025] At the lower right end of the outer side of the protective shell 107, there is a discharge chute. At the lower end of the inner side of the discharge chute, a guide plate 114 for guiding powder is integrally provided with the protective shell 107. Above the guide plate 114, there is a dust adsorption frame 200 for reducing the escape of dust. On the right side of the feeding pipe 101, there is an adjusting frame 103. Below the right side of the guide plate 114, there is a second receiving hopper 118.

[0026] At the lower end of the inner side of the feeding pipe 101, there is an electromagnetic valve 102 for assisting the input amount of powder. The middle cylindrical section on the outside of the protective shell 107 is made of a transparent material. At the rear side of the protective shell 107, there is a feeding motor 113 for driving the weighing seat 108 to rotate.

[0027] The cross-section of the collecting hopper 109 is a trapezoidal structure with a wider upper part and a narrower lower part. Below the collecting hopper 109, there is a transfer groove 110. On the right side of the transfer groove 110, there is an inclined discharge chute 111. The right end of the inclined discharge chute 111 is located above the guide plate 114. The feeding motor 113 drives the weighing seat 108 to rotate, so that the powder in the transfer groove 110 slides to the right through the inclined discharge chute 111 and is guided into the second receiving hopper 118 through the guide plate 114.

[0028] On the inner side of the right end of the inclined discharge chute 111, there is a sealing plate 112 for controlling the discharge of powder. In front of the sealing plate 112, there is a plugging telescopic rod. Inside the front end of the guide plate 114, there is a control inner hole.

[0029] Inside the control inner hole, there is a return spring 116. Inside the return spring 116, there is a starting pressure column 115. Below the starting pressure column 115, there is a start-stop button 117 for controlling the start and stop of the plugging telescopic rod. The start-stop button 117 is an automatically rebounding button. During the rotation of the weighing seat 108, the starting pressure column 115 is pressed, and the start-stop button 117 is pressed to start the plugging telescopic rod, controlling the sealing plate 112 to move forward to open the inclined discharge chute 111.

[0030] At the lower end of the internal composition of the dust adsorption frame 200, there is a dust suction hood 205. Above the dust suction hood 205, there is a dust suction pipe 204 fixedly connected. The upper end of the dust suction pipe 204 is connected to an external dust suction device.

[0031] Please refer to Figures 1 - 5 , as the first embodiment of the present utility model: First, the feeding pipe 101 controls the addition of powder through the solenoid valve 102, and the powder is introduced above the weighing seat 108 through the first receiving hopper 106, and converges into the transfer tank 110 through the collecting hopper 109. After weighing to a fixed amount, the feeding motor 113 drives the weighing seat 108 to rotate clockwise. Secondly, during the rotation of the weighing seat 108, the starting and stopping button 117 is pressed downward by the starting and stopping pressure column 115 in contact with the lower part thereof, so that the plugging telescopic rod is started to drive the sealing plate 112 to move forward. The powder is introduced above the guiding plate 114 from the transfer tank 110 through the inclined discharging chute 111, and slides into the second receiving hopper 118 under the action of gravity. And a dust adsorption frame 200 is installed outside the adjusting frame 103, and the fine dust generated by it is adsorbed by the dust suction cover 205, so as to improve the accuracy of powder feeding.

[0032] In the internal composition of the dust adsorption frame 200, an adjusting slider 201 is provided on the upper front side of the left side, a fixing screw 203 is fixedly connected above the rear side of the adjusting slider 201, and a support frame 202 is fixedly connected to the rear side of the adjusting slider 201;

[0033] An adjusting chute 104 is opened on the lower surface of the adjusting frame 103, and a fixing through groove 105 is opened behind the adjusting chute 104. The adjusting slider 201 and the adjusting chute 104 are movably fitted with each other, and the fixing screw 203 passes through the fixing through groove 105 and is screwed with a nut. The adjusting slider 201 slides in the adjusting chute 104 and the nut is screwed with the fixing screw 203, so as to adjust the up and down position of the dust suction cover 205.

[0034] Please refer to Figures 1 - 2 and Figure 5 , as the second embodiment of the present utility model: Based on the above first embodiment, the user can, according to the powder feeding amount, the fine dust splashed when the powder falls in the drop can be adsorbed by the dust suction cover 205, and the adjusting slider 201 slides in the adjusting chute 104 according to the amount of splashed dust, and the fixing screw 203 passes through the fixing through groove 105 and is screwed with the nut. After the position of the dust adsorption frame 200 is adjusted, it is fixed, so as to improve the dust adsorption effect.

[0035] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A powder feeding device with a metering structure at the discharge port, comprising: The feeding mechanism (100), the weighing seat (108), and the dust adsorption frame (200), characterized in that: at the upper left end of the internal composition of the feeding mechanism (100), there is a feeding pipe (101); Below the feeding pipe (101), there is a first receiving hopper (106) for receiving powder materials. Below the first receiving hopper (106), there is a protective shell (107) for reducing the escape of dust. In the middle position inside the protective shell (107), there is a weighing seat (108) for controlling the input amount of powder materials. On the upper surface of the weighing seat (108), there is a collecting hopper (109) for the natural falling and gathering of powder materials; At the lower right end of the outer side of the protective shell (107), there is a discharge slot. At the lower end inside the discharge slot, a guiding plate (114) for guiding powder materials is integrally provided with the protective shell (107). Above the guiding plate (114), there is a dust adsorption frame (200) for reducing the escape of dust. On the right side of the feeding pipe (101), there is an adjusting frame (103). Below the right side of the guiding plate (114), there is a second receiving hopper (118).

2. The powder feeding device with a metering structure at the discharge port according to claim 1, wherein: At the lower end inside the feeding pipe (101), there is a solenoid valve (102) for assisting the input amount of powder materials. The middle cylindrical section on the outside of the protective shell (107) is made of transparent material. At the rear of the protective shell (107), there is a feeding motor (113) for driving the weighing seat (108) to rotate.

3. A powder feeding device with a metering structure at the discharge port as described in claim 2, characterized in that: The cross-section of the collecting hopper (109) is a trapezoidal structure with a wider upper part and a narrower lower part. Below the collecting hopper (109), there is a transfer slot (110). On the right side of the transfer slot (110), there is an inclined discharge slot (111). The right end of the inclined discharge slot (111) is located above the guiding plate (114).

4. The powder feeding device with a metering structure at the discharge port according to claim 3, wherein: At the right end inside the inclined discharge slot (111), there is a sealing plate (112) for controlling the discharge of powder materials. On the front side of the sealing plate (112), there is a blocking telescopic rod. Inside the front end of the guiding plate (114), there is a control inner hole.

5. The powder feeding device with a metering structure at the discharge port according to claim 4, wherein: Inside the control inner hole, there is a return spring (116). Inside the return spring (116), there is a starting pressure column (115). Below the starting pressure column (115), there is a start-stop button (117) for controlling the start and stop of the blocking telescopic rod. The start-stop button (117) is an automatically rebounding button.

6. The powder feeding device with a metering structure at the discharge port as described in claim 1, characterized in that: At the lower end of the internal composition of the dust adsorption frame (200), there is a dust suction hood (205). Above the dust suction hood (205), there is a dust suction pipe (204) fixedly connected. The upper end of the dust suction pipe (204) is connected to an external dust suction device.

7. A powder feeding device with a metering structure at the discharge port as described in claim 1, characterized in that: At the upper left front side of the internal composition of the dust adsorption frame (200), there is an adjusting slider (201). Above the rear side of the adjusting slider (201), there is a fixed screw (203) fixedly connected. At the rear side of the adjusting slider (201), there is a support frame (202); The lower surface of the adjusting frame (103) is provided with an adjusting chute (104), and a fixed through groove (105) is provided behind the adjusting chute (104). The adjusting slider (201) is movably fitted with the adjusting chute (104), and the fixed stud (203) passes through the fixed through groove (105) and is screwed with a nut.

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