Power-driven hopper discharge mechanism for packaging machines

Abstract

The utility model discloses a kind of packaging machine hopper power discharging mechanism, including blanking hopper, the top end of blanking hopper, bottom end is equipped with inlet and outlet, blanking hopper inside upper portion is equipped with the power shaft of vertical arrangement, blanking hopper outer upper portion one side is equipped with motor, motor is connected with power shaft by transmission mechanism, transmission mechanism, power shaft are installed in shell, shell is supported and fixed on the side wall of blanking hopper, the lower end of power shaft is connected with discharging shaft and is stretched out outside shell, multiple discharging discrete vanes are distributed outside discharging shaft, multiple discharging discrete vanes are extended to outlet from top to bottom, discharging discrete vane is obliquely arranged;The upper end of power shaft is connected with connecting seat and is stretched out outside shell, multiple inlet discrete vanes are distributed outside connecting seat, connecting seat is also equipped with downwardly inclined conical guide cover, conical guide cover covers above the shell. The present application is designed by blanking hopper to reach the purpose of improving discharging speed, preventing discharging blockage.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, and in particular to a power feeding mechanism for a packaging machine hopper. Background Technology

[0002] In chemical production, finished products in solid form, such as powders or granules, are often produced. These finished products need to be packaged into bags for transportation and sale. Therefore, powder and granule packaging machines are widely used in chemical production.

[0003] After being weighed by a weighing scale, the material in the hopper enters the packaging machine's hopper for packaging. Existing packaging machines include a hopper for both storage and discharging. Material in the hopper typically flows down by gravity, which suffers from slow discharging speed, material sticking, and blockage. Therefore, current technology uses an auger for discharging. However, because the auger blades are continuous spiral thin sheets, they easily adhere to materials with a certain viscosity, leading to a decrease in material weight. During continuous operation, as the adhered material accumulates, a piece suddenly falls off, causing another increase in material weight. This results in fluctuations and inaccuracies in the weight of a single package. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a packaging machine hopper power feeding mechanism that has fast feeding speed, does not cause material blockage, and is not easy to stick to material.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a power feeding mechanism for a packaging machine hopper, connected below the hopper of a packaging scale, including a feeding hopper, wherein the feeding hopper is a conical hopper with a narrowed bottom, the top of the feeding hopper is provided with a feeding inlet, the bottom of the feeding hopper is provided with a discharging outlet, and a bag clamp is provided at the discharging outlet; characterized in that:

[0006] The upper part of the hopper is provided with a vertically arranged power shaft, and a motor is provided on the upper side of the hopper. The motor is connected to the power shaft through a transmission mechanism. The transmission mechanism and the power shaft are installed in the housing. The housing is supported and fixed to the side wall of the hopper. The lower end of the power shaft extends out of the housing and is connected to a feeding shaft. Multiple feeding discrete blades are distributed outside the feeding shaft. The multiple feeding discrete blades extend from top to bottom to the discharge port. The feeding discrete blades are inclined. The upper end of the power shaft extends out of the housing and is connected to a connecting seat. Multiple feeding discrete blades are distributed outside the connecting seat. The connecting seat is also provided with a downwardly inclined conical guide cover, which covers the top of the housing.

[0007] As a preferred technical solution, the transmission mechanism includes a horizontal rotating shaft passing through the hopper, with a driving bevel gear connected to one end of the horizontal rotating shaft inside the hopper, a driven bevel gear connected to the power rotating shaft, and a transmission connection between the driving bevel gear and the driven bevel gear. A driven sprocket is connected to one end of the horizontal rotating shaft outside the hopper, and a driving sprocket is connected to the output end of the motor. The driving sprocket and the driven sprocket are connected by a chain drive.

[0008] As a preferred technical solution, the housing includes a horizontal sleeve that passes through the hopper. The horizontal sleeve is fixed to the hopper by a flange. A rotating shaft housing is fixed to the inner end of the horizontal sleeve. The power rotating shaft is rotatably connected to the rotating shaft housing. The horizontal sleeve and the rotating shaft housing surround the part of the transmission mechanism located inside the hopper.

[0009] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0010] 1. In this application, the motor is located on the outside of the hopper and the power shaft is powered by the transmission mechanism. This allows the device to be easily connected to the bottom of the weighing hopper. The motor does not occupy the internal space of the hopper, and the material in the weighing hopper can be easily fed into the hopper. Since the transmission mechanism needs to be located inside the hopper, a housing is used to surround the transmission mechanism to prevent the material from blocking the transmission mechanism and to ensure the normal operation of the transmission mechanism.

[0011] Second, this application adds a conical guide hood and a feeding discrete blade above the shell. On the one hand, the conical guide hood shields the shell and guides the material by utilizing its downward tilt, avoiding material accumulation on the top of the shell. On the other hand, the active rotation of the feeding discrete blade pushes the material downward, thereby increasing the material feeding speed. The combined use of the conical guide hood and the feeding discrete blade solves the problem of slow feeding as a whole.

[0012] Third, this application has multiple discrete feeding blades arranged from top to bottom in the hopper. The pressure between adjacent blades is intermittent and discontinuous. Compared with traditional continuous blades, these blades are less prone to material adhesion, which can reduce material blockage. In addition, each blade has an inclination angle, which can generate a downward force when rotating, thus accelerating the feeding speed. This application uses discrete blades to replace the traditional auger for feeding, ensuring that the feeding speed is increased without causing material blockage. Attached Figure Description

[0013] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0014] Figure 1This is a structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 This is a structural cross-sectional view of an embodiment of the present utility model;

[0016] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 5 This is a partial structural exploded view of an embodiment of the present utility model;

[0019] Figure 6 This is a partial structural cross-sectional view of an embodiment of the present utility model;

[0020] Figure 7 This is an installation diagram of an embodiment of the present utility model;

[0021] In the diagram: 1-Feeding hopper; 2-Feed inlet; 3-Discharge outlet; 4-Power shaft; 5-Motor; 6-Feeding shaft; 7-Feeding discrete blades; 8-Connecting seat; 9-Feeding discrete blades; 10-Conical guide cover; 11-Horizontal shaft; 12-Driving bevel gear; 13-Driven bevel gear; 14-Driven sprocket; 15-Driving sprocket; 16-Chain; 17-Horizontal sleeve; 18-Flange; 19-Shaft housing; 20-Hopper; 21-Packaging scale. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0023] like Figure 7 As shown, a packaging scale 21 is provided at the discharge port of the hopper 20, and a packaging machine hopper is provided at the discharge port of the hopper of the packaging scale 21. When loading, the bag-loading robot sends the packaging bag into the lower part of the hopper of the packaging scale 21 and is clamped by the bag clamp. The material in the hopper 20 enters the packaging scale 21, and then falls quantitatively from the hopper of the packaging scale 21 into the packaging machine hopper below, and is finally put into the packaging bag.

[0024] See Figure 1 and Figure 2A packaging machine hopper power unloading mechanism includes a hopper 1 connected below the weighing hopper of a packaging scale 21. The hopper 1 is a conical hopper with a narrowed bottom. The top of the hopper 1 has an inlet 2, and the bottom has an outlet 3, with a bag clamp at the outlet 3. The function of the packaging machine hopper is to guide a fixed quantity of material into the packaging bag. Therefore, both the inlet 2 and outlet 3 of the packaging machine hopper are open. In the prior art, the material in the packaging machine hopper mainly falls by gravity, although some rely on augers for unloading. However, since the material entering the packaging machine hopper is accurately weighed, although augers can achieve unloading, they are prone to material sticking and clogging. If clogging occurs, the weight of the material entering the packaging bag will be inaccurate. Therefore, the auger unloading method is not suitable for unloading the packaging machine hopper. Therefore, this application provides a packaging machine hopper power unloading mechanism that facilitates rapid unloading and prevents clogging.

[0025] See Figures 1 to 6 The upper part of the hopper 1 is provided with a vertically arranged power shaft 4. The upper side of the hopper 1 is provided with a motor 5. The motor 5 is connected to the power shaft 4 through a transmission mechanism. The transmission mechanism and the power shaft 4 are installed in the housing. The housing is supported and fixed on the side wall of the hopper 1. The lower end of the power shaft 4 extends out of the housing and is connected to a feeding shaft 6. Multiple feeding discrete blades 7 are distributed outside the feeding shaft 6. The multiple feeding discrete blades 7 extend from top to bottom to the discharge port 3. The feeding discrete blades 7 are inclined. The upper end of the power shaft 4 extends out of the housing and is connected to a connecting seat 8. Multiple inclined feeding discrete blades 9 are distributed outside the connecting seat 8. The connecting seat 8 is also provided with a downwardly inclined conical guide cover 10. The conical guide cover 10 covers the top of the housing.

[0026] In this application, the motor 5 is located on the outer side of the hopper 1, and the power shaft 4 is powered by the transmission mechanism. This allows the device to be easily connected to the bottom of the weighing hopper. The motor 5 does not occupy the internal space of the hopper 1, and the material in the weighing hopper can be easily fed into the hopper 1. Since the transmission mechanism needs to be located inside the hopper 1, in order to avoid the material from blocking the transmission mechanism, a shell is used to surround the transmission mechanism to ensure the normal operation of the transmission mechanism.

[0027] This application adds a conical guide cover 10 and a feeding discrete blade 9 above the housing. On the one hand, the conical guide cover 10 shields the housing and guides the material by utilizing the downward tilt of the conical guide cover 10, thus preventing material from piling up above the housing. On the other hand, the active rotation of the feeding discrete blade 9 pushes the material downward, thereby increasing the material feeding speed. The combined use of the conical guide cover 10 and the feeding discrete blade 9 solves the problem of slow feeding as a whole.

[0028] In this application, multiple discrete feeding blades 7 are arranged from top to bottom in the hopper 1. The pressure between adjacent blades is intermittent and discontinuous. Compared with traditional continuous blades, these blades are less prone to material adhesion, which can reduce material blockage. In addition, each blade has an inclination angle, which can generate a downward force when rotating, thus accelerating the feeding speed. This application uses discrete blades to replace the traditional auger for feeding, ensuring that the feeding speed is increased without causing material blockage.

[0029] This application divides the power shaft 4, the feeding shaft 6, and the connecting seat 8 into three parts, which can be detachably connected to each other, facilitating the assembly and disassembly of the overall structure.

[0030] The feeding discrete blades 9 located above the power shaft 4 are used to solve the problem of feeding blockage, and the discharging discrete blades 7 located below the power shaft 4 are used to solve the problem of discharging blockage. The two work together to improve the overall material discharge speed. If the feeding discrete blades 9 are missing, the feeding will be slow. If the discharging discrete blades 7 are missing, the material will be blocked and the material will be slow. Therefore, the feeding discrete blades 9 and the discharging discrete blades 7 work together and are suitable for the hopper 1 of this type of packaging machine that is completely open at both the top and bottom for discharging.

[0031] The installation method of this mechanism is as follows: the transmission mechanism and the power shaft 4 are first pre-assembled as a whole, then the feeding shaft 6 is connected to the bottom end of the power shaft 4, and then the whole is placed in the feeding hopper 1. The housing is fixed to the side wall of the feeding hopper 1, and finally the connecting seat 8 is fixed.

[0032] The inclined angle of the feeding discrete blade 7 is 70°-80°. On the one hand, the inclined angle can generate a downward force to speed up the feeding speed, and on the other hand, it is close to vertical so that the material will not stick.

[0033] See Figures 1 to 4 The transmission mechanism includes a horizontal rotating shaft 11 passing through the hopper 1. One end of the horizontal rotating shaft 11 inside the hopper 1 is connected to a driving bevel gear 12. A driven bevel gear 13 is connected to a power rotating shaft 4. The driving bevel gear 12 and the driven bevel gear 13 are connected in a transmission connection. The other end of the horizontal rotating shaft 11 outside the hopper 1 is connected to a driven sprocket 14. The output end of the motor 5 is connected to a driving sprocket 15. The driving sprocket 15 and the driven sprocket 14 are connected in a transmission connection via a chain 16. When the motor 5 is running, the driving sprocket 15, chain 16, and driven sprocket 14 drive the horizontal rotating shaft 11 to rotate, which in turn drives the power rotating shaft 4 to rotate via the driving bevel gear 12 and the driven bevel gear 13, thereby driving the blades to rotate and actively push the material downwards, increasing the feeding speed and preventing material blockage.

[0034] See Figures 2 to 4 The housing includes a horizontal sleeve 17 penetrating the hopper 1. The horizontal sleeve 17 is fixed to the hopper 1 via a flange 18. A rotating shaft housing 19 is fixed to the inner end of the horizontal sleeve 17. The power rotating shaft 4 is rotatably connected to the rotating shaft housing 19. The horizontal sleeve 17 and the rotating shaft housing 19 enclose the portion of the transmission mechanism located within the hopper 1. The horizontal sleeve 17 and the rotating shaft housing 19 are fixed together and secured to the side wall of the hopper 1 via the flange 18, providing support for the components. Here, the rotating shaft housing 19 is located at the conical guide shield 10 to prevent material accumulation above the rotating shaft housing 19. A triangular guide plate can also be placed above the horizontal sleeve 17 to avoid material accumulation and not affect the feeding speed.

[0035] In this embodiment, the bottom of the hopper 1 is a cylinder with a slightly smaller diameter. Therefore, this is a key position that affects the feeding speed. Thus, corresponding feeding discrete blades 7 need to be provided at the corresponding position of this cylinder.

[0036] The bag clamping device mentioned is the commonly used bag clamping device on the hopper 1 of the packaging machine, which will not be described in detail here.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power feeding mechanism for a packaging machine hopper, connected below the hopper of a packaging scale, comprising a feeding hopper, wherein the feeding hopper is a conical hopper with a narrowed bottom, the top of the feeding hopper has a feeding inlet, the bottom of the feeding hopper has a discharging outlet, and a bag clamp is provided at the discharging outlet; characterized in that: The upper part of the hopper is provided with a vertically arranged power shaft, and a motor is provided on the upper side of the hopper. The motor is connected to the power shaft through a transmission mechanism. The transmission mechanism and the power shaft are installed in the housing. The housing is supported and fixed to the side wall of the hopper. The lower end of the power shaft extends out of the housing and is connected to a feeding shaft. Multiple feeding discrete blades are distributed outside the feeding shaft. The multiple feeding discrete blades extend from top to bottom to the discharge port. The feeding discrete blades are inclined. The upper end of the power shaft extends out of the housing and is connected to a connecting seat. Multiple feeding discrete blades are distributed outside the connecting seat. The connecting seat is also provided with a downwardly inclined conical guide cover, which covers the top of the housing.

2. The packaging machine hopper power feeding mechanism as described in claim 1, characterized in that: The transmission mechanism includes a horizontal rotating shaft passing through the hopper. One end of the horizontal rotating shaft inside the hopper is connected to a driving bevel gear. A driven bevel gear is connected to the power rotating shaft. The driving bevel gear and the driven bevel gear are connected in a transmission connection. One end of the horizontal rotating shaft outside the hopper is connected to a driven sprocket. The output end of the motor is connected to the driving sprocket. The driving sprocket and the driven sprocket are connected in a chain transmission connection.

3. The packaging machine hopper power feeding mechanism as described in claim 1, characterized in that: The housing includes a horizontal sleeve that passes through the hopper. The horizontal sleeve is fixed to the hopper by a flange. A rotating shaft housing is fixed to the inner end of the horizontal sleeve. The power rotating shaft is rotatably connected to the rotating shaft housing. The horizontal sleeve and the rotating shaft housing enclose the part of the transmission mechanism located inside the hopper.

Images