High-speed quantitative scale

Abstract

The utility model relates to a high-speed quantitative scale which comprises a scale frame, a feeding assembly and a weighing assembly arranged below the feeding assembly. The feeding assembly is arranged at the upper end of the scale frame; the weighing assembly is arranged below the feeding assembly; the feeding assembly comprises a first channel and a second channel; the first channel is perpendicular to the weighing assembly; and the bottom of the second channel is parallel to the weighing assembly, and a vibrator is arranged in the channel. The utility model provides a high-speed quantitative scale which is suitable for materials with different particle sizes and can accurately complete quantitative weighing of the materials at a high speed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to weighing equipment technical field, especially, relate to a high -speed ration scale. BACKGROUND

[0002] As a kind of weighing equipment, ration scale is widely used in material subpackaging and ration packaging link of food, chemical industry, pharmacy, agriculture and other industries.The core function is to realize the high-speed, accurate ration weighing of material, to meet the dual needs of efficiency and accuracy of modern production line.The traditional ration scale usually adopts the structure of single feeding channel combined with weighing hopper, there is the technical problem that different material physical characteristics cannot be simultaneously adapted, for example, it is difficult to simultaneously adapt powder material, small particle material and compressed wood bar and other large particle material, especially when large particle material is ration weighed, material is prone to be stuck.Moreover, when single feeding channel is used, feeding speed is fast, weighing hopper is impacted, and the technical problem of low ration weighing accuracy is caused;When feeding speed is slow, although higher ration weighing accuracy can be achieved, the technical problem of low feeding efficiency exists.

[0003] Therefore, how to provide a weighing device suitable for different particle size materials, and capable of high-speed and accurate ration weighing of material, is a technical problem to be solved in the field. INVENTION CONTENTS

[0004] To solve at least one of the above technical problems, the utility model provides a high-speed ration scale, comprising:

[0005] Scale frame, feeding assembly and weighing assembly arranged below feeding assembly;

[0006] Feeding assembly is arranged on the upper end of scale frame;Weighing assembly is arranged below feeding assembly;

[0007] Feeding assembly, comprising: first channel and second channel;

[0008] First channel is perpendicular to weighing assembly;

[0009] Second channel, bottom parallel to weighing assembly, and vibration is arranged in channel.

[0010] Further, second channel, comprising: vertically connected vertical material channel and horizontal material channel;

[0011] Vertical material channel is arranged above, and vibration is arranged in inside;

[0012] Horizontal material channel is arranged below, and parallel to weighing assembly.

[0013] Further, horizontal material channel is arranged with gate that can move up and down.

[0014] Further, a rotary scraper is arranged at the exit of the transverse channel.

[0015] Further, the first feeding channel comprises an arc gate driving member arranged at one side of the scale frame and a feeding arc gate arranged at the bottom of the first feeding channel.

[0016] The arc gate driving member is connected with the feeding arc gate and drives the feeding arc gate to rotate.

[0017] Preferably, the weighing assembly comprises a weighing sensor and a metering hopper arranged below the weighing sensor.

[0018] The metering hopper comprises an obliquely arranged hopper gate and an inwardly inclined side wall.

[0019] The hopper gate is rotatably arranged at the bottom of the side wall.

[0020] Further, the hopper gate has a double-layer structure and a first buffer pad is arranged between the inner and outer layers.

[0021] Further, the weighing assembly further comprises a mounting plate.

[0022] The mounting plate is connected with the weighing sensor at the upper end, connected with the first side of the metering hopper through a hook at the first bottom end, and screwed with the second side of the metering hopper at the second bottom end.

[0023] Further, a second buffer pad is arranged at the hook connection or / and screw connection between the mounting plate and the metering hopper.

[0024] Further, the high-speed constant-quantity scale further comprises a scale frame door rotatably arranged on the side wall of the scale frame.

[0025] A sealing ring is arranged between the scale frame door and the scale frame.

[0026] In this embodiment, a high-speed quantitative scale is given, when in use, the material to be weighed first passes through the first channel, falls vertically into the weighing assembly, most of the material to be weighed falls rapidly, rough feeding is realized; then, through the vibrator in the second channel, a small amount of material is controlled at the bottom of the second channel, flows horizontally into the weighing assembly, accurate feeding is carried out; when the weighing assembly detects that the weight of the material reaches the preset value, the feeding is stopped, and the quantitative weighing process is completed. Specifically, the material to be weighed passes through the first channel, realizes rapid vertical feeding under the action of gravity, and the main part of the target weight is reached; then the vibrator controls the material to fall horizontally into the weighing assembly, realizes more accurate and rapid feeding, so that the final quantitative weighing result efficiently and quickly reaches the target quantitative weighing result, avoids the single channel feeding mode, causes the material to overshoot, effectively controls the feeding amount, reduces the material waste, and improves the economic benefit. Moreover, the vibrator is adopted to control the material flow in the second channel, can avoid that the material to be weighed with large particle size is stuck in the channel, can also avoid that the material to be weighed with small particle size is agglomerated and blocked in the channel, can adapt to the material to be weighed with different particle sizes and densities, and has wide application range. In summary, the high-speed quantitative scale is given, is suitable for materials with different particle sizes, and can complete the quantitative weighing of the material at high speed and accurately. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative labor. In the drawings, the same components use the same reference numerals. The drawings are not drawn according to the actual proportion.

[0028] Figure 1 It is a schematic view of an embodiment of the high-speed quantitative scale of the utility model;

[0029] Figure 2 It is Figure 1 It is a sectional view of the A-A section of the embodiment shown in the drawing;

[0030] Figure 3 It is a schematic view of an embodiment of the second channel of the high-speed quantitative scale of the utility model;

[0031] Figure 4 It is a front view of an embodiment of the feeding assembly of the high-speed quantitative scale of the utility model;

[0032] Figure 5 It is a right view of an embodiment of the feeding assembly of the high-speed quantitative scale of the utility model;

[0033] Figure 6 Figure 2 is a right view of an embodiment of the weighing assembly of the high-speed constant-quantity scale of the present application;

[0034] Figure 7 Figure 3 is a partial cross-sectional view of an embodiment of the weighing assembly of the high-speed constant-quantity scale of the present application;

[0035] Figure 8 Figure 4 is a schematic view of an embodiment of the first metering hopper of the high-speed constant-quantity scale of the present application;

[0036] Figure 9 Figure 5 is a schematic view of an embodiment of the second metering hopper of the high-speed constant-quantity scale of the present application;

[0037] Figure 10 Figure 6 is a schematic view of an embodiment of the closed state of the scale frame door of the high-speed constant-quantity scale of the present application;

[0038] Figure 11 Figure 7 is a schematic view of an embodiment of the open state of the scale frame door of the high-speed constant-quantity scale of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0040] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can have a middle element.

[0041] It should be noted that if the embodiment of the utility model has directionality indication, such as up, down, left, right, front, back, the directionality indication is only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture, if the specific posture changes, the directionality indication also changes accordingly. In addition, if the embodiment of the utility model has the description of "first, second", "S1, S2", "step one, step two" and the like, the description is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or indicating the execution order of the method, and the person skilled in the art can understand that all in the utility model technical concept, without violating the utility model points, should be included in the protection scope of the utility model.

[0042] The utility model provides a kind of high-speed ration scale, reference Figure 1 And Figure 2 Including: scale frame 1, feeding assembly 2 and the weighing assembly 3 being set below feeding assembly 2;

[0043] Feeding assembly 2 is set on the upper end of scale frame 1;Weighing assembly 3 is set below feeding assembly 2;

[0044] Feeding assembly 2, including: first channel 21 and second channel 22;Preferably, both are arranged in parallel.

[0045] First channel 21 is perpendicular to weighing assembly 3;

[0046] Second channel 22, bottom is parallel to weighing assembly 3, and vibrator 4 is set in channel.

[0047] In this embodiment, a high-speed quantitative scale is given, when in use, the material to be weighed first passes through the first channel, falls vertically into the weighing assembly, most of the material to be weighed falls rapidly, and rough feeding is realized; then, the vibrator in the second channel is vibrated to control a small amount of material at the bottom of the second channel, and the material flows horizontally into the weighing assembly to perform accurate feeding; when the weighing assembly detects that the weight of the material reaches the preset value, the feeding is stopped, and the quantitative weighing process is completed. Specifically, the material to be weighed passes through the first channel, realizes rapid vertical feeding under the action of gravity, and reaches the main part of the target weight; then the vibrator controls the material to fall horizontally into the weighing assembly, and achieves more accurate and rapid feeding, so that the final quantitative weighing result efficiently and quickly reaches the target quantitative weighing result, avoids the single channel feeding mode, causes the material to overshoot, effectively controls the feeding amount, reduces the material waste, and improves the economic benefit. Moreover, the vibrator is adopted to control the material flow in the second channel, which can avoid that the large-diameter material to be weighed is stuck in the channel, and can also avoid that the small-diameter material is agglomerated and blocked in the channel, and can adapt to different particle sizes and densities of the material to be weighed, and has a wide application range. In summary, the high-speed quantitative scale is given, which is suitable for materials of different particle sizes, and can complete the quantitative weighing of the material at high speed and accurately.

[0048] Preferably, referring to Figure 2 and Figure 3 , the second channel 22 comprises a vertical channel 22a and a horizontal channel 22b connected in head-to-tail;

[0049] The vertical channel 22a is arranged at the top and is provided with a vibrator 4 at the inner side;

[0050] The horizontal channel 22b is arranged below and is parallel to the weighing assembly 3.

[0051] In this embodiment, when the second channel performs fine feeding, the material falls rapidly from the top into the vertical channel and then slowly enters the horizontal channel, which can avoid that the material is poured into the weighing assembly at one time, causes the weighing assembly to be overloaded, or the weighing result to fluctuate, so that the weighing process is more stable and controllable, and the time consumed for stabilizing the quantitative weighing result is shortened; meanwhile, the vibrator in the vertical channel vibrates to drive the horizontal channel to vibrate, which further adjusts the speed of the material entering the weighing assembly, so that the feeding process is more uniform and controllable.

[0052] More preferably, referring to Figure 2 and Figure 3 , the horizontal channel is provided with a gate 5 that can move up and down, and the height of the gate is adjusted up and down to adjust the opening size of the horizontal channel; preferably, referring to Figure 3, the gate 5 is arranged at the interface position 22b between the vertical material channel and the horizontal material channel 22a; when the accuracy requirement of the weighing is relatively low, the gate is raised to increase the cross-sectional area of the horizontal material channel, so that the material flow rate is increased; when the accuracy requirement of the weighing is relatively high, the gate is lowered to reduce the cross-sectional area of the horizontal material channel, so that the material flows into the weighing assembly slowly, the high-precision weighing is ensured, and the adjustability of the device is further improved.

[0053] More preferably, a rotary scraper is arranged at the outlet of the horizontal material channel, the rotary scraper rotates at a controllable speed, the material is slowly pushed by the blades, the material is uniformly dropped into the weighing assembly, the flow rate of the material can be further adjusted, the outlet is prevented from being blocked due to excessive moisture or viscosity of the material, and the stability of the device in operation is improved.

[0054] Preferably, referring to Figure 4 and Figure 5 , the first material inlet channel 21 comprises: an arc gate driving member 211 arranged on one side of the scale frame 1 and a feeding arc gate 212 arranged at the bottom of the first material inlet channel 21.

[0055] The arc gate driving member 211 is connected to the feeding arc gate 212 and drives the feeding arc gate 212 to rotate.

[0056] In this embodiment, the arc gate driving member is started to drive the feeding arc gate to rotate, so as to open or close the first material inlet channel, the material entering the first channel is buffered by the closed feeding arc gate, and then enters the weighing assembly through the opened feeding arc gate, so that the material is not directly discharged into the weighing assembly, the weighing assembly is not impacted, the weighing result is not fluctuated too much, the weighing result is stable, and the quantitative weighing rate is reduced. It can be understood that the operator can also gradually adjust the opening size of the arc gate through the arc gate driving member, and take into account the vertical falling of the material, so that the flow rate of the material is gradually reduced, and the fluctuation of the weighing result is reduced. For example, at the initial moment, the feeding arc gate is fully opened; at 1 / 2 moment, the feeding arc gate is opened by 1 / 2; before the feeding of the first channel is completed, the feeding arc gate is opened by 1 / 4; by adjusting the opening size of the feeding arc gate, the impact of the material falling on the weighing assembly is further reduced, the weighing result is quickly and stably, and the quantitative weighing speed is improved. Moreover, for small-particle-diameter materials (such as powder and grain), the controllable opening mode of the feeding arc gate can reduce dust flying and optimize the working environment. More preferably, referring to Figure 5 , the scale frame 1 is fixedly provided with a position sensing plate 213, and the feeding arc gate 212 is provided with a corresponding proximity sensor 214, the proximity sensor 214 detects the opening and closing position of the feeding arc gate by sensing the position sensing plate 213, and the adjustability of the feeding arc gate is further improved.

[0057] Preferably, referring to Figure 6The weighing assembly 3 comprises a weighing sensor 31 and a metering hopper 32 arranged below the weighing sensor 31.

[0058] The metering hopper 32 comprises an obliquely arranged hopper door 32b and an inwardly inclined side wall 32a.

[0059] The hopper door 32b is rotatably arranged at the bottom of the side wall 32a.

[0060] In this embodiment, the weighing sensor is used to detect the weight of the material in real time, and the oblique hopper door and the inwardly inclined side wall are combined to concentrate the material and prevent uneven accumulation of the material in the metering hopper, thereby ensuring stable weighing data and reducing errors caused by uneven distribution of the material. At the same time, the oblique design of the hopper door enables the oblique hopper door to rotate and open after the weighing is completed, so that the material can quickly slide to the discharge port, improving the weighing efficiency and reducing material residues, ensuring that the metering hopper is always clean and the discharged material always meets the predetermined target weight. Specifically, the hopper door of the metering hopper is hingedly connected to the bottom of the side wall of the metering hopper at one end and hingedly connected to an extension piece at the other end, so that the hopper door rotates around the bottom of the side wall under the action of the extension piece, which has a simple structure and high reliability. More specifically, the extension piece can be a telescopic cylinder, a telescopic oil cylinder, or a gear and rack mechanism driven by a motor, etc.

[0061] More preferably, the hopper door has a double-layer structure, and a first buffer pad is arranged between the inner and outer layers.

[0062] In this embodiment, when the material falls vertically from the feeding assembly into the metering hopper, it will generate a certain impact force, affecting the accuracy of the weighing sensor. The first buffer pad can absorb part of the impact force, reducing the direct impact on the weighing sensor, ensuring more stable and accurate weighing data, so that whether it is a small particle or a heavy block of material, the weighing stability can be ensured, and the application range of the device can be improved. In addition, since the material continuously falls into the metering hopper, it will hit the hopper door and generate a large impact noise. The hopper door has a double-layer structure, and the buffer pad arranged between the inner and outer layers can reduce the spread of noise

[0063] Preferably, referring to Figure 6 The weighing assembly 3 further comprises a mounting plate 33.

[0064] The mounting plate 33 is connected to the weighing sensor 31 at the upper end, connected to the first side of the metering hopper 32 through a hook at the first bottom end, and screwed to the second side of the metering hopper 32 at the second bottom end.

[0065] In this embodiment, the installation plate is added to the weighing assembly, which can improve the structural strength of the device, reduce the direct impact on the load cell, and improve the service life of the device. At the same time, the first side of the measuring hopper is connected to the installation plate through a hook, allowing the measuring hopper to have a small buffer when impacted by material, reducing the instantaneous impact on the load cell, and improving the stability and accuracy of the weighing data. The second side of the measuring hopper is screwed to the installation plate, providing a certain rigid support to prevent the measuring hopper from swinging excessively. In addition, the combination of the hook and the screw connection allows the operator to conveniently disassemble and install the measuring hopper. For example, the operator only needs to disassemble the screw connection between the measuring hopper and the installation plate. Then, the second side of the measuring hopper is lifted by the operator, and the first side of the measuring hopper is still supported by the hook. Finally, the operator removes the measuring hopper, completing the entire disassembly process. Since the hook can still provide support during the disassembly process of the measuring hopper, it can prevent the measuring hopper from falling during disassembly, and the operator can complete the disassembly alone, greatly improving the convenience of the device. It can be understood that the combination of the hook and the screw connection between the measuring hopper and the installation plate allows the operator to conveniently replace measuring hoppers of different volumes and ranges to adapt to different predetermined weight batching weighing requirements, greatly improving the application range of the device. For example, Figure 8 and Figure 9 The measuring hopper 31 includes a first measuring hopper 31a and a second measuring hopper 31b. The range of the first measuring hopper 31a is 0.5kg-5kg, and the range of the second measuring hopper 31b is 1kg-15kg. The hook connection and screw connection positions of the first and second measuring hoppers correspond to the hook and screw connection positions of the installation plate. The operator only needs to replace measuring hoppers of different ranges to achieve batching weighing of different ranges.

[0066] Specifically, referring to Figure 7 The measuring hopper 32 further includes a locking bolt 321, a steel sleeve 322, a retaining ring 323, and a shock-absorbing cushion 324.

[0067] The shock-absorbing cushion 324 is arranged around the steel sleeve 322.

[0068] The locking bolt 321 passes through the retaining ring 323 and the steel sleeve 322 to screw the measuring hopper 32 to the installation plate 33.

[0069] In this embodiment, by adding a locking bolt, a steel sleeve, a retaining ring, and a shock-absorbing cushion to the measuring hopper, the locking bolt is used in combination with the steel sleeve at the screw connection between the measuring hopper and the installation plate to ensure the tight connection between the measuring hopper and the installation plate. At the same time, in combination with the shock-absorbing cushion, the weighing data fluctuations caused by vibration or environmental factors are effectively reduced, and the weighing accuracy is improved. The combination of the retaining ring and the steel sleeve makes the fixation of the locking bolt more stable, further improving the reliability of the device.

[0070] Preferably, the mounting plate is provided with a second buffer pad at the hooking or screwing position of the weighing hopper.

[0071] In this embodiment, a second buffer pad is additionally arranged at the hooking or screwing position of the mounting plate and the weighing hopper, so as to isolate the vibration transmitted by the weighing hopper, and further improve the weighing accuracy of the weighing sensor. It is worth noting that the second buffer pad, the first buffer pad, the feeding arc door and the horizontal material channel provide multi-stage buffering and shock absorption for the material falling into the weighing hopper, so that the measurement value of the weighing sensor can be quickly stabilized, and the quantitative weighing of the material can be realized efficiently and accurately.

[0072] Preferably, referring to Figure 10 and Figure 11 , the high-speed quantitative scale is characterized in that further comprising: a scale frame door 6 rotatably arranged on the side wall of the scale frame 1.

[0073] A sealing ring 7 is arranged between the scale frame door 1 and the scale frame 6.

[0074] In this embodiment, the scale frame door is additionally arranged on the side wall of the scale frame, so as to facilitate the replacement of the weighing hopper and the maintenance of the high-speed quantitative scale, and improve the maintainability of the device. The sealing ring is arranged between the scale frame door and the scale frame, so as to prevent the material from overflowing or leaking from the gap of the scale frame door, and cause material waste and environmental pollution. More preferably, the high-speed quantitative scale further comprises an electric control box arranged in the scale frame door. Since the electric control box is integrated in the scale frame door, on the one hand, the sealing requirement of the electric control box can be met; on the other hand, when the electric control box is maintained, the electric control box can move with the scale frame door, and the operator only needs to open the scale frame door to easily access the electric control box without complicated disassembly; when the inside of the scale frame is maintained, the electric control box will not hinder the operator, and the maintainability of the device is further improved.

[0075] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A high speed dosing scale, characterized in that, The application relates to a weighing frame, a feeding assembly and a weighing assembly arranged below the feeding assembly. The feeding assembly is arranged at the upper end of the weighing frame. The weighing assembly is arranged below the feeding assembly. The feeding assembly comprises a first channel and a second channel. The first channel is perpendicular to the weighing assembly. The second channel is parallel to the weighing assembly at the bottom, and a vibrator is arranged in the channel. The second channel comprises a vertical channel and a horizontal channel connected in head-tail mode.

2. The high speed dosing scale of claim 1, wherein, The vertical channel is arranged at the top, and a vibrator is arranged at the inner side. The horizontal channel is arranged at the bottom and is parallel to the weighing assembly. A gate capable of moving up and down is arranged in the horizontal channel.

3. The high speed dosing scale of claim 2, wherein, A rotary scraper is arranged at the outlet of the horizontal channel.

4. The high speed dosing scale of claim 3, wherein, The first feeding channel comprises an arc gate driving element arranged at one side of the weighing frame and a feeding arc gate arranged at the bottom of the first feeding channel.

5. The high speed dosing scale of claim 1, wherein, The arc gate driving element is connected with the feeding arc gate and drives the feeding arc gate to rotate. The weighing assembly comprises a weighing sensor and a metering hopper arranged below the weighing sensor.

6. The high speed dosing scale of claim 5, wherein, The metering hopper comprises an obliquely arranged hopper gate and an inwardly inclined side wall. The hopper gate is rotatably arranged at the bottom of the side wall. The hopper gate is of double-layer structure, and a first buffer pad is arranged between the inner and outer layers.

7. The high speed dosing scale of claim 6, wherein, The weighing assembly further comprises a mounting plate.

8. The high speed dosing scale of claim 7, wherein, The mounting plate is connected with the weighing sensor at the upper end, and is connected with the first side of the metering hopper through a hook at the bottom first side and is screwed with the second side of the metering hopper at the bottom second side. Second buffer pads are arranged at the hook connection and / or screw connection between the mounting plate and the metering hopper.

9. The high speed dosing scale of claim 8, wherein, Further provided are:

10. The high speed dosing scale of claim 1, wherein, A weighing frame door rotatably arranged on the side wall of the weighing frame. A sealing ring is arranged between the weighing frame door and the weighing frame. ​

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