Automatic viscous liquid canning machine
By setting empty bottle placement positions and photoelectric sensors on the top surface of the conveyor belt, combined with a quantitative cylinder structure featuring clamping components and a cylinder pushing mechanism, the problem of container tipping is solved, enabling efficient quantitative filling of viscous liquids and improving the overall efficiency and accuracy of the filling machine.
Patent Information
- Application Number
- CN202512052464.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-24
AI Technical Summary
Existing follow-up filling equipment is prone to container tipping during the filling process, which affects filling efficiency and may lead to material leakage and conveyor belt contamination. Existing solutions either affect efficiency or are incomplete.
The system employs a conveyor belt with empty bottle placement positions and photoelectric positioning sensors on the top surface, combined with a quantitative cylinder structure featuring clamping components and a cylinder pushing mechanism. The movement of the slider and quantitative filling are controlled by photoelectric sensors. Support chains and ball bearings are added to reduce wear, and electromagnetic flow meters and weighing platforms are used to ensure accurate filling.
It effectively prevents containers from tipping over, improves filling efficiency, ensures accurate quantitative filling of viscous liquids, reduces wear, reduces pipeline blockage, and improves overall filling quality and efficiency.
Smart Images
Figure CN121553892A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of filling equipment, and in particular to an automatic filling machine for viscous liquids. Background Technology
[0002] In existing technologies, automated filling equipment has been widely adopted in production lines across various industries, effectively improving production efficiency. Generally, existing automated filling machines are fixed-point type, meaning that empty containers to be filled are first transported to a designated location via a conveyor belt, and then the filling head injects material into the empty containers. This material can be dry or liquid, depending on the industry. The drawback of this filling method is the waiting time required; that is, the containers must remain stationary during filling, resulting in low filling efficiency. To address this issue, some existing technologies employ mobile following structures for filling, but... Some of these structures are still not very mature. The main problem is that when filling an empty container while it is moving, the container is prone to tipping over. This is mainly because the container is initially empty, and when the material enters, it obstructs the moving container. At this time, the container's center of gravity is also high, making the aforementioned problem more likely. Once the container tipps over, the material inside spills out, which not only affects the subsequent filling process but also contaminates the conveyor belt, making it difficult to clean. Existing technologies generally solve this problem by reducing the conveyor belt speed, but this affects filling efficiency. To solve these problems, a new solution is needed. Summary of the Invention
[0003] The purpose of this invention is to provide an automatic filling machine for viscous liquids, which solves the problem that containers are prone to tipping over during the filling process in existing follow-up filling devices.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] An automatic viscous liquid filling machine includes a conveyor belt, a filling bin, and a following filling mechanism. The conveyor belt is horizontally positioned across the lower part of the filling bin's inner cavity. The following filling mechanism is located inside the filling bin and positioned above the conveyor belt. The following filling mechanism includes a horizontal electric slide rail, a slider, a filling head, and a storage tank. The horizontal electric slide rail is horizontally fixed above the conveyor belt. The slider is slidably engaged with the horizontal electric slide rail. The filling head is fixed in the middle of the slider, with its outlet facing downwards and directly onto the conveyor belt. The inlet of the filling head is connected to the storage tank located at the top of the filling bin via a flexible hose. The top surface of the conveyor belt has an empty bottle placement position. The front end of the empty bottle placement position is equipped with a signal feedback element of a photoelectric positioning sensor. The side of the conveyor belt is equipped with a signal transmitter of a photoelectric positioning sensor adapted to the signal feedback element of the photoelectric positioning sensor.
[0006] In this solution, an empty bottle placement position is set on the top surface of the conveyor belt, which can limit and move the empty bottles placed on the conveyor belt, instead of relying solely on friction to move the empty bottles forward. This makes it less likely for the empty bottles to tip over when the material falls from the filling head into the empty bottles to be filled, effectively solving the problem mentioned in the background technology. Specifically, the empty bottles to be filled are first placed at the empty bottle placement position on the conveyor belt, and then the conveyor belt transports them forward. When the signal emitted by the signal transmitter of the photoelectric positioning sensor on one side of the conveyor belt is captured by the signal feedback of the photoelectric positioning signal sensor, it proves that the empty bottle has arrived directly under the filling head. At this time, the controller controls the slider to move forward with the empty bottle, and at the same time, the filling head performs the filling operation, delivering the liquid to be filled into the empty bottle. This filling efficiency is higher.
[0007] As a further preferred embodiment of the invention, the empty bottle placement position is provided with a left clamp and a right clamp. Each of the left and right clamps includes a fixing plate, a clamping plate, and an adjusting screw. The fixing plate is fixed to the top surface of the conveyor belt, and the clamping plate is movably disposed inside the fixing plate. The adjusting screw passes through the middle of the fixing plate and rotates and engages with the outer end face of the clamping plate. The adjusting screw is threadedly connected to the fixing plate.
[0008] The clamping position can be adjusted according to the size of the container, making it more adaptable. Turning the adjusting screws of the left and right clamps inward will reduce the clamping range, while turning them outward will expand the clamping range, adapting to different clamping and fixing methods. This method makes fixing containers more flexible.
[0009] As a further preferred embodiment of the invention, the filling head includes a lifting cylinder and a metering cylinder arranged sequentially from top to bottom. The cylinder rod of the lifting cylinder passes downward through the top of the metering cylinder and is connected to a pusher plate slidably disposed inside the metering cylinder. The metering cylinder includes a cylinder body and a discharge head. The upper side of the cylinder body is provided with an inlet for connection to a hose. The outer wall of the discharge head is provided with an external thread. The middle of the slider is provided with a discharge head through hole adapted to the discharge head. The metering cylinder and the slider are detachably connected by an external thread provided on the outer wall of the discharge head and an internal thread provided on the inner wall of the discharge head through hole.
[0010] When filling ordinary liquid materials, the filling volume can be controlled by installing a flow meter at the outlet of the storage tank. The same applies to solid materials. However, this method has some problems when dealing with viscous liquids, such as detergents. Due to their high viscosity, some liquid will adhere to the inner wall of the hose and the inner cavity of the filling head after flowing out of the storage tank. This will prevent the actual filling volume from reaching the required level. To solve the above problem, this solution designs the filling head as a metering cylinder with a cylinder pusher mechanism. This allows for metered filling. Before filling, sufficient material is fed into the metering cylinder through the hose. Then, during the filling process, the pusher plate delivers the material in the metering cylinder to the bottle to be filled. This effectively solves the problem of insufficient filling volume for viscous materials. By disassembling the metering cylinder and replacing it with metering cylinders of different sizes, various filling volume requirements can be met.
[0011] As a further preferred embodiment of the invention, the length of the discharge head is the same as the thickness of the slider, the bottom of the slider is provided with a discharge baffle that rotates via a rotating shaft, the bottom of the rotating shaft is fixed with a driven control gear, a driven control gear is meshed with the driven control gear, and the driven control gear is fixedly connected to the output shaft of a rotating motor located at one end of the slider.
[0012] The discharge baffle switch starts the filling process when it is rotated to the discharge port that can no longer block the discharge head. When it is rotated back to the discharge port that can block the discharge head, the filling process can be stopped. This structure is simple.
[0013] As a further preferred embodiment of the invention, the bottom surface of the top plate of the canning silo is provided with a top plate groove directly opposite the slider. A ball is slidably engaged in the top plate groove. The bottom surface of the ball is connected to the slider via a support chain. The position where the support chain connects to the slider is located at the opposite end of the position where the slider is connected to the horizontal electric slide rail.
[0014] Ordinary filling heads do not require material support. However, this solution replaces the original ordinary filling head with a quantitative cylinder structure with a cylinder pushing mechanism, which requires material support. This increases the load on the slider and accelerates its wear. To solve the above problem, this solution incorporates a support chain and ball bearings. By designing the support position at the opposite end of the slider and the horizontal electric slide rail connection, the slider can be well supported, thus slowing down its wear rate.
[0015] As a further preferred embodiment of the invention, a weighing platform is provided in front of the discharge port of the filling hopper, a replenishing tank is provided above the weighing platform, a replenishing head is provided at the bottom of the replenishing tank, a replenishing head solenoid valve is provided at the replenishing head, a replenishing head flow meter is provided below the replenishing head solenoid valve, a storage tank flow meter is provided at the discharge port of the storage tank, a metering cylinder flow meter is provided at the inlet of the metering cylinder, and the connection structure between the hose and the storage tank, and the connection structure between the hose and the metering cylinder are all detachable connection structures.
[0016] Although this solution incorporates a metering cylinder with a pneumatic pusher mechanism, the characteristics of viscous materials still cause some viscous material to remain on the inner wall of the metering cylinder's outlet. To ensure sufficient filling volume, a weighing platform is added at the outlet of the filling hopper. The material after initial filling is sent to the weighing platform for weighing. If the weight does not meet the standard, replenishment is required via a replenishment tank and a replenishment head to ensure that the weight of each bottle meets the standard. When the flow rate calculated by the liquid storage tank flow meter at the liquid storage tank outlet differs significantly from the flow rate calculated by the metering cylinder flow meter at the metering cylinder inlet, an alarm will be triggered, reminding the operator to remove the hose for cleaning. When the replenishment head flow meter calculates a large amount that needs replenishment, the metering cylinder must be removed and the outlet of the metering cylinder cleaned.
[0017] As a further preferred embodiment of the invention, the feed head flow meter, the liquid storage tank flow meter, and the metering cylinder flow meter are all electromagnetic flow meters.
[0018] Electromagnetic flow meters enable unobstructed pipeline flow with minimal pressure loss, making them ideal for transporting viscous liquids.
[0019] As a further preferred embodiment of the invention, a three-axis robotic arm is also provided on one side of the conveyor belt, and a clamping claw is provided at the working end of the three-axis robotic arm.
[0020] The three-axis robotic arm can quickly grab the pre-canned products from the conveyor belt and transfer them to the weighing platform.
[0021] As a further preferred embodiment of the invention, both the outer wall of the liquid storage tank and the outer wall of the hose are provided with a heat insulation layer.
[0022] The insulation layer can keep the liquid storage tank and hoses warm, so that the temperature is less likely to affect the conveying of viscous materials when the weather is cold. This is because the lower the temperature, the slower the flow rate of viscous materials, and the more likely they are to stick to the wall.
[0023] As a further preferred embodiment of the invention, the following filling mechanism has four or more sets, and the empty bottle placement position is set in correspondence with the following filling mechanism.
[0024] With four or more sets of follow-up filling mechanisms working together, the efficiency is higher. The horizontal electric slide rail is a ring slide rail. After the first set of follow-up filling mechanisms follows the material to the filling end point, it continues to move forward and returns to the initial position through the ring slide rail to perform the second round of filling operation.
[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:
[0026] 1. In this solution, an empty bottle placement position is set on the top surface of the conveyor belt, which can limit and move the empty bottles placed on the conveyor belt, instead of relying solely on friction to move the empty bottles forward. This makes it less likely for the empty bottles to tip over when the material falls from the filling head into the empty bottles to be filled, effectively solving the problem mentioned in the background technology. Specifically, the empty bottles to be filled are first placed at the empty bottle placement position on the conveyor belt, and then the conveyor belt transports them forward. When the signal emitted by the signal transmitter of the photoelectric positioning sensor on one side of the conveyor belt is captured by the signal feedback of the photoelectric positioning signal sensor, it proves that the empty bottle has arrived directly under the filling head. At this time, the controller controls the slider to move forward with the empty bottle, and at the same time, the filling head performs the filling operation, sending the liquid to be filled into the empty bottle. This filling efficiency is higher.
[0027] 2. The size of the clamping position can be adjusted according to the size of the container, making it more adaptable. Turning the adjusting screws of the left and right clamps inward will reduce the clamping range, while turning them outward will expand the clamping range, adapting to different clamping and fixing methods. This method makes fixing containers more flexible.
[0028] 3. When filling ordinary liquid materials, the filling volume can be controlled by installing a flow meter at the outlet of the storage tank. The same applies to solid materials. However, this method has some problems when dealing with viscous liquids, such as detergents. Due to their high viscosity, some liquid will adhere to the inner wall of the hose and the inner cavity of the filling head after flowing out of the storage tank. This will prevent the actual filling volume from reaching the required level. To solve the above problem, this solution designs the filling head as a metering cylinder with a cylinder pusher mechanism. This allows for metered filling. Before filling, sufficient material is fed into the metering cylinder through the hose. Then, during the filling process, the pusher plate delivers the material in the metering cylinder to the bottle to be filled. This effectively solves the problem of insufficient filling volume for viscous materials. By disassembling the metering cylinder and replacing it with metering cylinders of different sizes, various filling volume requirements can be met.
[0029] 4. The discharge baffle switch starts the filling operation when it is turned to the discharge port that can no longer block the discharge head. When it is turned back to the discharge port that can block the discharge head, the filling will be stopped. This structure is simple.
[0030] 5. Ordinary filling heads do not require material support. However, this solution replaces the original ordinary filling head with a quantitative cylinder structure with a cylinder pushing mechanism, which requires material support. This increases the load on the slider and accelerates its wear. To solve the above problem, this solution sets up a support chain and ball bearings. By designing the support position at the opposite end of the slider and the horizontal electric slide rail connection, the slider can be well supported, thus slowing down its wear rate.
[0031] 6. Although this solution includes a metering cylinder with a cylinder-driven feeding mechanism, the characteristics of viscous materials will still cause some viscous material to remain on the inner wall of the metering cylinder's outlet. To ensure sufficient filling volume, a weighing platform is added at the outlet of the filling hopper. The material after initial filling is sent to the weighing platform for weighing. If the weight does not meet the standard, it needs to be replenished through the replenishment tank and replenishment head to ensure that the weight of each bottle meets the standard. When the flow rate calculated by the liquid storage tank flow meter at the liquid storage tank outlet differs significantly from the flow rate calculated by the metering cylinder flow meter at the metering cylinder inlet, an alarm will be triggered, reminding the operator to remove the hose for cleaning. When the replenishment head flow meter calculates that a large amount needs to be replenished, the metering cylinder needs to be removed and the metering cylinder's outlet cleaned.
[0032] 7. Electromagnetic flow meters enable unobstructed pipeline flow with minimal pressure loss, making them more suitable for transporting viscous liquids.
[0033] 8. The three-axis robotic arm can quickly grab the pre-canned products from the conveyor belt and transfer them to the weighing platform.
[0034] 9. The insulation layer can keep the liquid storage tank and hoses warm, so that the temperature is less likely to affect the conveying of viscous materials when the weather is cold. This is because the lower the temperature, the slower the flow rate of viscous materials, and the more likely they are to stick to the wall.
[0035] 10. Four or more sets of following filling mechanisms can perform following filling together, which is more efficient. The horizontal electric slide rail is a ring slide rail. After the first set of following filling mechanisms follows the material to the filling end point, it continues to move forward and returns to the initial position through the ring slide rail to perform the second round of filling operation. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the structure of the present invention.
[0037] Figure 2 This is a top view of the conveyor belt of the present invention.
[0038] Figure 3 This is a schematic diagram of the connection between the filling head and the slider of the present invention.
[0039] Figure 4 This is a schematic diagram of the structure of the top plate of the canning silo of the present invention. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.
[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Specific Implementation Example 1:
[0047] Figure 1 , Figure 2 , Figure 3 , Figure 4 An automatic bottling machine for viscous liquids is shown, comprising a conveyor belt 1, a bottling bin 2, and a following bottling mechanism. The conveyor belt 1 is horizontally positioned across the lower part of the bottling bin 2's inner cavity. The following bottling mechanism is located inside the bottling bin 2 and positioned above the conveyor belt 1. The following bottling mechanism includes a horizontal electric slide rail 3, a slider 4, a bottling head 5, and a storage tank 6. The horizontal electric slide rail 3 is horizontally fixed above the conveyor belt 1. The slider 4 is slidably engaged with the electric slide rail 3. The bottling head 5 is fixed in the middle of the slider 4, with its outlet facing downwards and directly opposite the conveyor belt 1. The inlet of the bottling head 5 is connected to the storage tank 6 located at the top of the bottling bin 2 via a flexible hose 7. The top surface of the conveyor belt 1 has an empty bottle placement position 11. The front end of the empty bottle placement position 11 has a signal feedback element 8 of a photoelectric positioning sensor. The side of the conveyor belt 1 has a signal transmitter 9 of a photoelectric positioning sensor adapted to the signal feedback element 8 of the photoelectric positioning sensor.
[0048] In this solution, an empty bottle placement position is set on the top surface of the conveyor belt, which can limit and move the empty bottles placed on the conveyor belt, instead of relying solely on friction to move the empty bottles forward. This makes it less likely for the empty bottles to tip over when the material falls from the filling head into the empty bottles to be filled, effectively solving the problem mentioned in the background technology. Specifically, the empty bottles to be filled are first placed at the empty bottle placement position on the conveyor belt, and then the conveyor belt transports them forward. When the signal emitted by the signal transmitter of the photoelectric positioning sensor on one side of the conveyor belt is captured by the signal feedback of the photoelectric positioning signal sensor, it proves that the empty bottle has arrived directly under the filling head. At this time, the controller controls the slider to move forward with the empty bottle, and at the same time, the filling head performs the filling operation, delivering the liquid to be filled into the empty bottle. This filling efficiency is higher. Specific Implementation Example 2:
[0050] This embodiment further describes the empty bottle placement position 11 based on specific embodiment 1. The empty bottle placement position 11 is provided with a left clamp 10 and a right clamp 12. Both the left clamp 10 and the right clamp 12 include a fixing plate, a clamping plate and an adjusting screw. The fixing plate is fixed to the top surface of the conveyor belt 1, and the clamping plate is movably disposed inside the fixing plate. The adjusting screw passes through the middle of the fixing plate and rotates and engages with the outer end face of the clamping plate. The adjusting screw is threadedly connected to the fixing plate.
[0051] The clamping position can be adjusted according to the size of the container, making it more adaptable. Turning the adjusting screws of the left and right clamps inward will reduce the clamping range, while turning them outward will expand the clamping range, adapting to different clamping and fixing methods. This method makes fixing containers more flexible. Specific Implementation Example 3:
[0053] This embodiment further describes the filling head 5 based on specific embodiment 1. The filling head 5 includes a lifting cylinder 51 and a metering cylinder 52 arranged sequentially from top to bottom. The cylinder rod of the lifting cylinder 51 passes downward through the top of the metering cylinder 52 and is connected to the pusher plate 53 slidably arranged inside the metering cylinder 52. The metering cylinder 52 includes a cylinder body 521 and a discharge head 522. The upper side of the cylinder body 521 is provided with an inlet connected to the hose 7. The outer wall of the discharge head 522 is provided with an external thread. The middle part of the slider 4 is provided with a discharge head through hole adapted to the discharge head 522. The metering cylinder 52 and the slider 4 are detachably connected by the external thread on the outer wall of the discharge head 522 and the internal thread on the inner wall of the discharge head through hole.
[0054] When filling ordinary liquid materials, the filling volume can be controlled by installing a flow meter at the outlet of the storage tank. The same applies to solid materials. However, this method has some problems when dealing with viscous liquids, such as detergents. Due to their high viscosity, some liquid will adhere to the inner wall of the hose and the inner cavity of the filling head after flowing out of the storage tank. This will prevent the actual filling volume from reaching the required level. To solve the above problem, this solution designs the filling head as a metering cylinder with a cylinder pusher mechanism. This allows for metered filling. Before filling, sufficient material is fed into the metering cylinder through the hose. Then, during the filling process, the pusher plate delivers the material in the metering cylinder to the bottle to be filled. This effectively solves the problem of insufficient filling volume for viscous materials. By disassembling the metering cylinder and replacing it with metering cylinders of different sizes, various filling volume requirements can be met. Specific Implementation Example 4:
[0056] This embodiment further describes the discharge head 522 based on specific embodiment 3. The length of the discharge head 522 is the same as the thickness of the slider 4. The bottom of the slider 4 is provided with a discharge baffle 14 that rotates through the rotating shaft 13. A driven control gear is fixed at the bottom of the rotating shaft 13. An active control gear is meshed with the driven control gear. The active control gear is fixedly connected to the output shaft of the rotating motor 15 located at one end of the slider 4.
[0057] The discharge baffle switch starts the filling process when it is rotated to the discharge port that can no longer block the discharge head. When it is rotated back to the discharge port that can block the discharge head, the filling process can be stopped. This structure is simple. Specific Implementation Example 5:
[0059] This embodiment further describes the filling chamber 2 based on specific embodiment 4. The bottom surface of the top plate of the filling chamber 2 is provided with a top plate groove 22 at the position opposite to the slider. A ball bearing 16 is slidably engaged in the top plate groove 22. The bottom surface of the ball bearing 16 is connected to the slider 4 through a support chain 17. The position where the support chain 17 is connected to the slider 4 is located at the opposite end of the position where the slider 4 is connected to the horizontal electric slide rail 3.
[0060] Ordinary filling heads do not require material support. However, this solution replaces the original ordinary filling head with a quantitative cylinder structure with a cylinder pushing mechanism, which requires material support. This increases the load on the slider and accelerates its wear. To solve the above problem, this solution incorporates a support chain and ball bearings. By designing the support position at the opposite end of the slider and the horizontal electric slide rail connection, the slider can be well supported, thus slowing down its wear rate. Specific Implementation Example 6:
[0062] This embodiment further describes the filling chamber 2 based on specific embodiment 4. A weighing platform 18 is provided in front of the discharge port of the filling chamber 2. A replenishing tank 19 is provided above the weighing platform 18. A replenishing head is provided at the bottom of the replenishing tank 19. A replenishing head solenoid valve is provided at the replenishing head solenoid valve. A replenishing head flow meter is provided below the replenishing head solenoid valve. A liquid storage tank flow meter is provided at the discharge port of the liquid storage tank 6. A quantitative cylinder flow meter is provided at the inlet of the quantitative cylinder 5. The connection structure between the hose 7 and the liquid storage tank 6, and the connection structure between the hose 7 and the quantitative cylinder 5 are all detachable connection structures.
[0063] Although this solution incorporates a metering cylinder with a pneumatic pusher mechanism, the characteristics of viscous materials still cause some viscous material to remain on the inner wall of the metering cylinder's outlet. To ensure sufficient filling volume, a weighing platform is added at the outlet of the filling hopper. The material after initial filling is sent to the weighing platform for weighing. If the weight does not meet the standard, replenishment is required via a replenishment tank and a replenishment head to ensure that the weight of each bottle meets the standard. When the flow rate calculated by the liquid storage tank flow meter at the liquid storage tank outlet differs significantly from the flow rate calculated by the metering cylinder flow meter at the metering cylinder inlet, an alarm will be triggered, reminding the operator to remove the hose for cleaning. When the replenishment head flow meter calculates a large amount that needs replenishment, the metering cylinder must be removed and the outlet of the metering cylinder cleaned. Specific Implementation Example 7:
[0065] This embodiment further illustrates the feed head flow meter and liquid storage tank flow meter based on specific embodiment 6. The feed head flow meter, liquid storage tank flow meter and metering cylinder flow meter are all electromagnetic flow meters.
[0066] Electromagnetic flow meters enable unobstructed pipeline flow with minimal pressure loss, making them ideal for transporting viscous liquids. Specific Implementation Example 8:
[0068] This embodiment adds a three-axis robotic arm 20 to the specific embodiment 6. The three-axis robotic arm 20 is also provided on one side of the conveyor belt 1, and the working end of the three-axis robotic arm 20 is provided with a clamping claw.
[0069] The three-axis robotic arm can quickly grab the pre-canned products from the conveyor belt and transfer them to the weighing platform. Specific Implementation Example 9:
[0071] This embodiment further describes the liquid storage tank 6 and the hose 7 based on specific embodiment 1. Both the outer wall of the liquid storage tank 6 and the outer wall of the hose 7 are provided with a heat insulation layer.
[0072] The insulation layer can keep the liquid storage tank and hoses warm, so that the temperature is less likely to affect the conveying of viscous materials when the weather is cold. This is because the lower the temperature, the slower the flow rate of viscous materials, and the more likely they are to stick to the wall. Specific Implementation Example 10:
[0074] This embodiment further describes the following filling mechanism based on specific embodiment 1. The following filling mechanism has four or more sets, and the empty bottle placement position 11 is set in correspondence with the following filling mechanism.
[0075] With four or more sets of follow-up filling mechanisms working together, the efficiency is higher. The horizontal electric slide rail is a ring slide rail. After the first set of follow-up filling mechanisms follows the material to the filling end point, it continues to move forward and returns to the initial position through the ring slide rail to perform the second round of filling operation.
[0076] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An automatic filling machine for viscous liquids, comprising a conveyor belt (1), a filling bin (2), and a following filling mechanism, wherein the conveyor belt (1) is horizontally arranged across the lower part of the inner cavity of the filling bin (2), and the following filling mechanism is located inside the filling bin (2) and above the conveyor belt (1), characterized in that: The following filling mechanism includes a horizontal electric slide rail (3), a slider (4), a filling head (5), and a storage tank (6). The horizontal electric slide rail (3) is fixed horizontally above the conveyor belt (1). The slider (4) is slidably engaged with the electric slide rail (3). The filling head (5) is fixed in the middle of the slider (4). The outlet of the filling head (5) faces downwards and directly towards the conveyor belt (1). The inlet of the filling head (5) is connected to the storage tank (6) located at the top of the filling bin (2) through a hose (7). The top surface of the conveyor belt (1) is provided with an empty bottle placement position (11). The front end of the empty bottle placement position (11) is provided with a signal feedback element (8) of a photoelectric positioning sensor. The side of the conveyor belt (1) is provided with a signal transmitter (9) of a photoelectric positioning sensor that is compatible with the signal feedback element (8) of the photoelectric positioning sensor.
2. The automatic filling machine for viscous liquids according to claim 1, characterized in that: The empty bottle placement position (11) is provided with a left clamp (10) and a right clamp (12). The left clamp (10) and the right clamp (12) each include a fixing plate, a clamping plate and an adjusting screw. The fixing plate is fixed on the top surface of the conveyor belt (1), and the clamping plate is movably arranged inside the fixing plate. The adjusting screw passes through the middle of the fixing plate and rotates and engages with the outer end face of the clamping plate. The adjusting screw is threadedly connected to the fixing plate.
3. The automatic filling machine for viscous liquids according to claim 1, characterized in that: The filling head (5) includes a lifting cylinder (51) and a metering cylinder (52) arranged sequentially from top to bottom. The cylinder rod of the lifting cylinder (51) passes downward through the top of the metering cylinder (52) and is connected to the pusher plate (53) that is slidably arranged inside the metering cylinder (52). The metering cylinder (52) includes a cylinder body (521) and a discharge head (522). The upper side of the cylinder body (521) is provided with an inlet that is connected to a hose (7). The outer wall of the discharge head (522) is provided with an external thread. The middle part of the slider (4) is provided with a discharge head through hole that is adapted to the discharge head (522). The metering cylinder (52) and the slider (4) are detachably connected by the external thread on the outer wall of the discharge head (522) and the internal thread on the inner wall of the discharge head through hole.
4. The automatic filling machine for viscous liquids according to claim 3, characterized in that: The length of the discharge head (522) is the same as the thickness of the slider (4). The bottom of the slider (4) is provided with a discharge baffle (14) that rotates through a rotating shaft (13). A driven control gear is fixed at the bottom of the rotating shaft (13). An active control gear is meshed with the driven control gear. The active control gear is fixedly connected to the output shaft of a rotating motor (15) located at one end of the slider (4).
5. The automatic filling machine for viscous liquids according to claim 4, characterized in that: The bottom surface of the top plate of the canning hopper (2) is provided with a top plate groove (22) directly opposite the slider. A ball (16) is slidably engaged in the top plate groove (22). The bottom surface of the ball (16) is connected to the slider (4) through a support chain (17). The position where the support chain (17) is connected to the slider (4) is located at the opposite end of the position where the slider (4) is connected to the horizontal electric slide rail (3).
6. The automatic filling machine for viscous liquids according to claim 4, characterized in that: A weighing platform (18) is provided in front of the discharge port of the filling hopper (2). A feeding tank (19) is provided above the weighing platform (18). A feeding head is provided at the bottom of the feeding tank (19). A feeding head solenoid valve is provided at the feeding head. A feeding head flow meter is provided below the feeding head solenoid valve. A liquid storage tank flow meter is provided at the discharge port of the liquid storage tank (6). A quantitative cylinder flow meter is provided at the inlet of the quantitative cylinder (5). The connection structure between the hose (7) and the liquid storage tank (6) and the connection structure between the hose (7) and the quantitative cylinder (5) are both detachable connection structures.
7. The automatic filling machine for viscous liquids according to claim 6, characterized in that: The feed head flow meter, liquid storage tank flow meter, and metering cylinder flow meter are all electromagnetic flow meters.
8. The automatic filling machine for viscous liquids according to claim 6, characterized in that: A three-axis robotic arm (20) is also provided on one side of the conveyor belt (1), and a clamping claw is provided at the working end of the three-axis robotic arm (20).
9. The automatic filling machine for viscous liquids according to claim 1, characterized in that: The outer walls of the liquid storage tank (6) and the hose are both provided with heat insulation layers.
10. The automatic filling machine for viscous liquids according to claim 1, characterized in that: The following filling mechanism has four or more sets, and the empty bottle placement position (11) is set in correspondence with the following filling mechanism.