Double-station volumetric method feeding device with arch breaking function

Abstract

The invention discloses a double-station volumetric method feeding device with an arch breaking function, which comprises a mounting plate, a hopper, a hopper mounting base plate, a feeding port, a fine adding metering plate, a coarse adding metering plate, a spring pressing plate mechanism and an arch breaking mechanism, the hopper and the mounting plate are assembled together through a hopper mounting base plate and a spring pressing plate mechanism, two feeding ports are formed in the lower portion of the mounting plate, feeding of two stations is met, four discharging ports are formed in the bottom of the hopper, and the positions of the discharging ports of the hopper correspond to the positions of the feeding ports. The two fine metering plates and the two coarse metering plates are arranged between the hopper mounting base plate and the mounting plate in a staggered and parallel mode. A floating type attaching mode is adopted, zero gaps are formed between the metering plate and the hopper mounting base plate and the hopper mounting plate which are adjacent up and down, the service life of the metering plate is prolonged, and production safety is guaranteed. The arch breaking mechanism is adopted for medicament arch breaking treatment, it is guaranteed that medicaments can smoothly and evenly enter the metering holes, and precision is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pyrotechnic production, in particular to a double-station volumetric feeding device with an arch-breaking function. Background Art

[0002] In the field of pyrotechnic production, automatic weighing and charging technology is one of the key technologies for achieving safe and automated production of pyrotechnics. It mainly includes two methods: constant volume weighing and quantitative weighing. Constant volume weighing is to evenly load the agent into a fixed volume container and measure the amount of agent through the fixed volume container. Constant volume weighing has the characteristics of fast metering and charging, simple structure, but poor consistency of agent weight. Metering weighing requires a feeding device to feed the agent to a weighing sensor, and then the weighing sensor uses real-time feedback to control the feeding amount. The key to metering weighing is to achieve accurate control of agent feeding. The metering weighing structure is relatively complex and the feeding efficiency is low. For this reason, constant volume weighing and charging technology is more preferred in automated charging technology.

[0003] In the prior art, the metering plate weighing method is a commonly used constant volume weighing method. The use of the metering plate weighing method to achieve automated weighing and charging has a simple structure, simple control, and can reduce costs. However, due to the high processing precision requirements of key parts such as the metering plate, it is difficult to achieve the ideal processing level, which will cause a gap between the metering plate and its upper and lower adjacent components. In addition, during long-term use, the wear of the relatively moving parts will increase the gap, and drug powder will enter the gap, causing the metering plate to stagnate, resulting in poor production. It has poor maintainability, high maintenance costs, and is prone to safety accidents. At the same time, when facing certain types of drugs that are prone to arching and poor fluidity, the constant volume weighing method has poor consistency in drug dosage, and may even interrupt loading and feeding. Summary of the Invention

[0004] To address the aforementioned issues, the present invention provides a dual-station volumetric feeding device with an arch-breaking function, comprising: a mounting plate, a hopper, a hopper mounting pad, a feed port, a fine feed metering plate, a coarse feed metering plate, and a spring pressure plate mechanism. The hopper is secured to the hopper mounting pad and connected to the mounting plate via a spring pressure plate mechanism; two feed ports are provided below the mounting plate, and four discharge ports are provided at the bottom of the hopper, with the hopper discharge ports positioned correspondingly to the feed ports; two fine feed metering plates and two coarse feed metering plates are provided, staggered and parallel to each other, between the hopper mounting pad and the mounting plate.

[0005] Furthermore, the spring pressure plate mechanism specifically includes: a hopper pressure plate, a spring, a clamping screw, a side plate, and a clamping sleeve; two side plates are combined and respectively installed on both sides of the upper surface of the mounting plate; the clamping screw passes through the spring and the clamping sleeve to press the hopper pressure plate and the hopper mounting pad onto the side plate.

[0006] Furthermore, there are four spring pressure plate mechanisms.

[0007] Furthermore, the fine metering plate and the rough metering plate are both arranged between two side plates; the fine metering plate and the rough metering plate are each provided with a metering hole, and the diameter of the metering hole on the fine metering plate is much smaller than the diameter of the metering hole on the rough metering plate.

[0008] Furthermore, it also includes an arch-breaking mechanism, which specifically includes: a spring piece, a cylinder, a knocking head, a mounting block, and a support plate; the mounting block is installed at the upper end of the hopper near the top, one end of the spring piece is fixed to the mounting block, and the other end extends into the interior of the hopper near the discharge port; the support plate is vertically arranged on the rear side of the upper surface of the mounting plate, the cylinder is installed at the upper end of the support plate near the top, and the knocking head is installed on the cylinder.

[0009] Furthermore, it also includes a finishing metering pad; the finishing metering pad is installed between the mounting plate and the finishing metering plate.

[0010] The present invention provides a dual-station volumetric feeding device with an arch-breaking function, which has the following beneficial effects: The present invention adopts a floating fitting method to form a zero gap between the metering plate and its upper and lower adjacent components, thereby preventing the intrusion of powder, preventing the metering plate from being scratched or getting stuck during the metering process, extending the service life of the metering plate, reducing the maintenance cost of the device, and ensuring production safety.

[0011] The arch-breaking mechanism adopted in the present invention has a spring piece extending into each discharge port of the hopper. The vibration frequency and vibration amplitude of the spring piece are controlled by changing the knocking frequency and knocking degree of the knocking cylinder, thereby realizing arch-breaking processing of different medicines, ensuring that the medicines can enter the metering hole smoothly and evenly, thereby ensuring the accuracy of the metering medicines. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of the structure of the device provided by the present invention; Figure 2 A schematic diagram of the arch-breaking mechanism structure provided by the present invention; Figure 3 This is a structural schematic diagram of the spring pressure plate mechanism provided by the present invention.

[0014] In the figure, 1. Mounting plate; 2. Hopper; 3. Feed port; 4. Fine metering plate; 5. Coarse metering plate; 6. Spring; 7. Cylinder; 8. Striking head; 9. Mounting block; 10. Fine metering pad; 11. Hopper mounting pad; 12. Hopper pressure plate; 13. Spring; 14. Clamping screw; 15. Side plate; 16. Clamping sleeve. DETAILED DESCRIPTION

[0015] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] The following describes the implementation method of the present invention in detail with reference to the accompanying drawings. The description only includes some embodiments, not all embodiments. For the purpose of clarity, representations and descriptions that are not related to the present invention are omitted in the drawings and descriptions.

[0017] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are now described in detail below. Obviously, the implementation cases described are part of the embodiments of the present invention, not all of them, and should not be understood as limiting the scope of the implementation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-3 As shown, the present invention provides a dual-station volumetric feeding device with an arch-breaking function, comprising: a mounting plate 1, a hopper 2, a hopper mounting pad 11, a feed port 3, a fine feed metering plate 4, and a coarse feed metering plate 5, and also a spring pressure plate mechanism. The hopper 2 is fixed to the hopper mounting pad 11 and connected to the mounting plate 1 via a spring pressure plate mechanism. Two feed ports 3 are provided below the mounting plate 1 to meet the feeding needs of the two stations; there are four discharge ports at the bottom of the hopper 2, and the positions of the discharge ports of the hopper 2 correspond to the positions of the feed ports 3; two each of the fine feed metering plates 4 and the coarse feed metering plates 5 are placed in an alternating and parallel manner between the hopper mounting pad 11 and the mounting plate 1.

[0019] like Figure 3 As shown, the spring pressure plate mechanism specifically includes: a hopper pressure plate 12, a spring 13, a clamping screw 14, a side plate 15, and a clamping sleeve 16. There are four spring pressure plate mechanisms. The side plates 15 are combined into two, fixedly mounted on either side of the upper surface of the mounting plate 1. The clamping screw 14 passes through the spring 13 and the clamping sleeve 16 to clamp the hopper pressure plate 12 and the hopper mounting pad 11 against the side plates 15.

[0020] The finishing metering plate 4 and the roughing metering plate 5 are also located between the two side plates 15 ; each of the finishing metering plate 4 and the roughing metering plate 5 is provided with a metering hole, and the diameter of the metering hole on the finishing metering plate 4 is much smaller than the diameter of the metering hole on the roughing metering plate 5 .

[0021] It also includes arch breaking mechanisms, such as Figure 2 As shown, the arch-breaking mechanism specifically includes: a spring piece 6, a cylinder 7, a striking head 8, a mounting block 9, and a support plate; the mounting block 9 is installed at the upper end of the hopper 2 near the top, one end of the spring piece 6 is fixed to the mounting block 9, and the other end extends into the interior of the hopper 2 near the discharge port; the support plate is vertically arranged on the rear side of the upper surface of the mounting plate 1, the cylinder 7 is installed at the upper end of the support plate near the top, and the striking head 8 is installed on the cylinder 7. When the hopper is filled with a sufficient amount of medicine, part of the spring piece will be buried by the medicine. When the arch needs to be broken, the striking head 8 repeatedly strikes the mounting block 9 under the action of the movement of the cylinder 7, causing the spring piece to vibrate, thereby moving the medicine to achieve the purpose of breaking the arch.

[0022] It also includes a finishing metering pad 10; the finishing metering pad 10 is installed between the mounting plate 1 and the finishing metering plate 4, and is used to raise the height of the finishing metering plate so that the upper surfaces of the metering plates are at the same height.

[0023] The metering plate device used in the present invention adopts a rough metering plate and a fine metering plate. The rough metering plate 5 and the fine metering plate 4 are arranged between the hopper mounting pad 11 and the mounting plate 1, and can slide back and forth on the mounting plate 1 along the cylinder axis under the action of the cylinder.

[0024] The coarse metering plate 5 is provided with a large metering hole, and the fine metering plate 4 is provided with a small metering hole. The method of using the coarse metering plate and the fine metering plate in combination for feeding can ensure the weighing accuracy and shorten the action rhythm. The mounting plate 1 serves as the mounting plate of the power device of the constant volume feeding mechanism. The height of the side plate 15 is slightly lower than that of the coarse metering plate 5, so that the top of the coarse metering plate 5 contacts the bottom of the hopper mounting pad 11 to form zero gap. In order to ensure smooth movement of the pulling metering plate, a spring pressure plate mechanism is designed in this device, with a total of 4, corresponding to the four corners of the hopper mounting pad 11. Under the action of the spring pressure plate mechanism, the coarse metering plate 5 and the fine metering plate 4 are fitted with the hopper mounting pad 11. In this way, when the resistance encountered in the movement of the coarse metering plate 5 and the fine metering plate 4 increases, the spring force of the spring 13 of the spring pressure plate mechanism can be overcome to slightly lift the hopper mounting pad 11 and the hopper 2, ensuring the smoothness of the movement process and the zero gap between the metering plate and the hopper mounting pad 11, effectively preventing the powder from flowing between the metering plate and the hopper mounting pad 11, reducing the jamming phenomenon of the metering plate caused by the powder, ensuring safe production and improving the service life of the metering device.

[0025] An arch-breaking mechanism is used on the hopper 2. The arch-breaking mechanism is mainly composed of a striking head, a mounting block, a shrapnel, a cylinder and other components. It can be set that every N times, the cylinder drives the striking head to strike the mounting block 9, so that the mounting block 9 drives the shrapnel 6 to shake, and the shrapnel extends into the medicine. The shaking can destroy the arch bridge formed between the medicines, help the medicine flow, ensure the uniformity of the medicine in the metering hole, and help to improve the feeding accuracy of the medicine.

[0026] The present invention adopts a floating fitting method to form a zero gap between the metering plate and its upper and lower adjacent components, thereby preventing the intrusion of powder, preventing the metering plate from being scratched or getting stuck during the metering process, extending the service life of the metering plate, reducing the maintenance cost of the device, and ensuring production safety.

[0027] The combined use of a coarse metering plate and a fine metering plate for feeding achieves control over the feeding amount accuracy and ensures the consistency of the product charge amount; a double-station feeding structure is adopted to improve feeding efficiency; a knocking and arch-breaking mechanism is added to the feeding device hopper to assist the feeding mechanism in unloading, which can ensure the uniformity of the medicine in the metering hole and improve the feeding consistency of the feeding device, thereby improving the feeding qualification rate of the feeding device.

[0028] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A dual-station volumetric feeding device with arch-breaking function, comprising: The mounting plate (1), the hopper (2), the hopper mounting pad (11), the feed port (3), the fine metering plate (4), and the coarse metering plate (5), are characterized in that they further include a spring pressure plate mechanism; The hopper (2) is fixed on the hopper mounting pad (11) and connected to the mounting plate (1) via a spring pressure plate mechanism. Two feeding ports (3) are provided below the mounting plate (1). Four discharge ports are provided at the bottom of the hopper (2). The positions of the hopper discharge ports correspond to the positions of the feeding ports (3). There are two each of the fine metering plates (4) and the coarse metering plates (5), which are placed in a staggered and parallel manner between the hopper mounting pad (11) and the mounting plate (1).

2. The double-station volumetric feeding device with arch-breaking function according to claim 1 is characterized in that: The spring pressure plate mechanism specifically comprises: a hopper pressure plate (12), a spring (13), a compression screw (14), a side plate (15), and a compression sleeve (16); The side plates (15) are combined into two and fixedly mounted on both sides of the upper surface of the mounting plate (1); the hopper pressing plate (12) is pressed on the hopper mounting pad (11); the pressing screw (14) passes through the spring (13) and the pressing sleeve (16) and is connected to the side plate (15), and presses the hopper pressing plate (12) and the hopper mounting pad (11) on the side plate (15).

3. The double-station volumetric feeding device with arch-breaking function according to claim 2 is characterized in that: Specifically, there are four spring pressure plate mechanisms.

4. The double-station volumetric feeding device with arch-breaking function according to claim 1, characterized in that: The fine metering plate (4) and the rough metering plate (5) are both arranged between two side plates (15); the fine metering plate (4) and the rough metering plate (5) are each provided with a metering hole, and the diameter of the metering hole on the fine metering plate (4) is much smaller than the diameter of the metering hole on the rough metering plate (5).

5. The double-station volumetric feeding device with arch-breaking function according to claim 1, characterized in that: The invention also includes an arch-breaking mechanism, which specifically includes: a spring piece (6), a cylinder (7), a knocking head (8), a mounting block (9), and a support plate; the mounting block (9) is mounted on the upper end of the hopper (2) near the top, one end of the spring piece (6) is fixed to the mounting block (9), and the other end extends into the interior of the hopper (2) near the discharge port; the support plate is vertically arranged on the rear side of the upper surface of the mounting plate (1), the cylinder (7) is mounted on the upper end of the support plate near the top, and the knocking head (8) is mounted on the cylinder (7).

6. The double-station volumetric feeding device with arch-breaking function according to claim 1, characterized in that: It also includes a finishing metering pad (10); the finishing metering pad (10) is installed between the mounting plate (1) and the finishing metering plate (4).

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