An automatic metering screw conveyor for putty powder raw materials

Abstract

This utility model discloses an automatic metering screw conveyor for putty powder raw materials, relating to the technical field of putty powder production equipment. It includes components such as a support frame, a support platform, a weighing device, a base plate, a feeding cylinder, a storage tank, a drive motor, and a control system. The support platform at the upper end of the support frame has a positioning groove, in which the weighing device is fixed. The base plate is slidably fitted onto four guide columns via guide sleeves and placed on the weighing device. The auger inside the feeding cylinder is driven by the drive motor. The storage tank is sealed to the feeding cylinder via mating flanges, and its inner wall has an anti-stick coating. An electric hydraulic cylinder at the lower end of the support platform can lift the base plate via a support plate, facilitating weighing device maintenance. During operation, the weighing device monitors the overall weight change in real time, and the raw material is metered by the amount of weight reduction. When a preset value is reached, the drive motor is automatically shut off. This utility model features accurate metering and convenient maintenance, effectively solving the problems of large metering errors and difficult maintenance associated with traditional devices.

Description

Technical Field

[0001] This utility model relates to the technical field of putty powder production equipment, specifically an automatic metering screw conveyor for putty powder raw materials. Background Technology

[0002] In the production and processing of putty powder, accurate metering and stable delivery of raw materials are crucial for ensuring consistent product quality. Currently, the raw material conveying equipment commonly used in putty powder production lines often employs a combination of traditional screw conveyors and independent metering devices, which presents the following technical problems:

[0003] First, the measurement accuracy is insufficient. The connection structure between traditional metering devices and conveying equipment is loose, and vibrations during equipment operation can easily lead to unstable stress on the weighing sensors. Second, the maintenance convenience is poor. The weighing components of existing equipment are mostly directly fixed under the load-bearing structure. When the weighing sensor malfunctions and needs to be repaired or replaced, it is necessary to disassemble the upper equipment such as the storage tank and conveying cylinder, which is cumbersome and time-consuming, seriously affecting the continuity of production. Therefore, the development of an automatic metering screw conveyor for putty powder raw materials that is accurate in measurement, easy to maintain, structurally stable, and has good sealing performance has become an urgent need in the industry.

[0004] Therefore, those skilled in the art have provided an automatic metering screw conveyor for putty powder raw materials to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide an automatic metering screw conveyor for putty powder raw materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic metering screw conveyor for putty powder raw materials includes a support frame, which is a cubic frame structure welded from high-strength steel. A bearing platform is horizontally installed on the upper end of the support frame. A rectangular positioning groove is formed on the upper surface of the bearing platform. A weighing device is fixedly installed in the positioning groove. A base plate is movably arranged on the upper surface of the weighing device. A feeding component is arranged on the upper end of the base plate. The weighing device is electrically connected to an external control system.

[0008] As a further embodiment of this utility model: the feeding assembly includes a feeding cylinder fixedly mounted on the upper surface of the base plate by a bracket, a drive motor fixedly mounted on one end of the feeding cylinder, and a discharge pipe fixedly connected to the other end of the feeding cylinder.

[0009] As a further embodiment of this utility model: an auger is rotatably installed inside the feeding cylinder, the output shaft of the drive motor is fixedly connected to the auger, and the drive motor is electrically connected to an external control system.

[0010] As a further embodiment of this utility model: a storage tank is provided above the side of the feeding cylinder near the drive motor. The bottom outlet of the storage tank is sealed to the flange interface of the feeding cylinder through a mating flange. The inner wall of the storage tank is provided with an anti-stick coating, and the top is provided with a feed pipe with a sealing cap.

[0011] As a further improvement of this utility model: four guide pillars are fixedly connected to the upper end of the support platform, and the four guide pillars are arranged in a matrix.

[0012] As a further improvement of this utility model: through holes are provided at the four corners of the base plate, and guide sleeves are fixedly embedded in the through holes. The base plate is slidably sleeved on the guide post through the guide sleeves.

[0013] As a further improvement of this utility model: two electric hydraulic cylinders are fixedly installed at the lower end of the support platform, and the electric hydraulic cylinders are electrically connected to an external control system.

[0014] As a further improvement of this utility model: the piston rod of the electric hydraulic cylinder passes through the support platform and is fixedly connected to a support plate, with the two support plates corresponding to the two sides of the lower end of the base plate respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Accurate and stable measurement: Through the matching installation of the positioning groove and the weighing device, combined with the guiding and limiting structure of the guide column and guide sleeve, the horizontal displacement of the base plate and the upper equipment is effectively limited, ensuring that all the weight is applied to the weighing device. With the help of a high-precision pressure sensor with temperature compensation function, the interference of environmental factors such as vibration and temperature on the weighing is significantly reduced, meeting the high-precision requirements of putty powder raw material ratio.

[0017] 2. Convenient and efficient maintenance: The lifting assembly, consisting of an electric hydraulic cylinder and a support plate, can easily lift the base plate and the upper equipment as a whole through the guide column, so that the weighing device is freed from the stress state. The weighing device can be repaired or replaced without disassembling core components such as storage tanks and feeding cylinders, which greatly shortens the maintenance time and reduces the difficulty of operation.

[0018] 3. High degree of automation: The weighing device monitors weight changes in real time, and the control system can preset the conveying threshold. When the raw material conveying reaches the standard, the drive motor is automatically shut down, realizing the automatic linkage of metering and conveying, reducing manual intervention, reducing labor intensity, and improving the standardization and consistency of the production process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic metering screw conveyor for putty powder raw materials.

[0020] Figure 2 This is a front view of the feeding component in an automatic metering screw conveyor for putty powder raw materials.

[0021] Figure 3 This is a bottom view of an automatic metering screw conveyor for putty powder raw materials.

[0022] Figure 4 This is a schematic diagram of the overall structure of the feeding component in an automatic metering screw conveyor for putty powder raw materials.

[0023] Figure 5 This is a schematic diagram of the support platform and weighing device in an automatic metering screw conveyor for putty powder raw materials.

[0024] In the diagram: 1. Support frame; 2. Bearing platform; 3. Positioning groove; 4. Weighing device; 5. Base plate; 6. Bracket; 7. Feeding cylinder; 8. Drive motor; 9. Discharge pipe; 10. Storage tank; 11. Feeding pipe; 12. Electric hydraulic cylinder; 13. Support plate; 14. Guide column; 15. Through hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Reference Figure 1-5 This embodiment provides an automatic metering screw conveyor for putty powder raw materials, which mainly consists of a support frame 1, a bearing platform 2, a weighing device 4, a base plate 5, a feeding assembly, a storage tank 10, and a lifting assembly.

[0028] The support frame 1 is a cubic frame structure welded from high-strength steel, and its bottom is fixed to the ground with expansion bolts to ensure the stability of the overall structure. The bearing platform 2 is horizontally welded to the upper end of the support frame 1, and the positioning groove 3 on its surface is adapted to the size of the weighing device 4. The weighing device 4 uses a high-precision pressure sensor with temperature compensation function, which is fixed in the groove with countersunk bolts to ensure the stability of the weighing data.

[0029] The base plate 5 is placed on the upper surface of the weighing device 4, and brass guide sleeves are inlaid in the through holes 15 at its four corners, forming a sliding fit with the four guide posts 14. This guiding structure can limit the horizontal displacement of the base plate 5, ensuring that all the weight is applied to the weighing device 4, thereby improving the measurement accuracy.

[0030] Example 2

[0031] Reference Figure 1-5 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that the support 6 of the feeding component is fixed to the base plate 5 by welding, and the drive motor 8 is a servo motor with a gearbox, which is fixedly connected to the auger through a coupling to ensure that the feeding speed is stable and controllable.

[0032] The storage tank 10 features a conical bottom design with a polytetrafluoroethylene (PTFE) anti-stick coating on the inner wall to reduce raw material adhesion. Its upper flange at the bottom is bolted to the lower flange of the feeding cylinder 7, with a silicone gasket in between to prevent powder leakage. The top feed pipe 11 is equipped with a threaded sealing cap, facilitating material feeding while preventing moisture ingress.

[0033] Two electric hydraulic cylinders 12 of the lifting assembly are symmetrically installed at the lower end of the support platform 2, and a rubber buffer pad is provided on the support plate 13 at the end of the piston rod. When it is necessary to repair or replace the weighing device 4, the electric hydraulic cylinder 12 is activated, the piston rod pushes the support plate 13 to rise, and the bottom plate 5 is lifted along the guide column 14, so that the weighing device 4 is freed from the stress state. At this time, maintenance operations can be carried out safely without disassembling the entire feeding system.

[0034] During operation, the control system first presets the required weight of putty powder to be conveyed. The sealing cover of the storage tank 10 is opened, and the raw material is added through the feed pipe 11. The raw material enters the feeding cylinder 7 through the mating flange. The drive motor 8 is started, and the auger rotates to convey the raw material from the discharge pipe 9 to the subsequent equipment. Simultaneously, the weighing device 4 monitors the total weight of the base plate 5, the feeding assembly, and the storage tank 10 in real time. When the weight reduction reaches a preset threshold, the control system automatically shuts off the drive motor 8, completing one precise metering and conveying cycle.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A putty powder raw material automatic metering screw conveyor device comprising a support frame (1), characterized in that, The support frame (1) is a cubic frame structure, welded from high-strength steel. A bearing platform (2) is horizontally installed on the upper end of the support frame (1). A rectangular positioning groove (3) is provided on the upper surface of the bearing platform (2). A weighing device (4) is fixedly installed in the positioning groove (3). A base plate (5) is movably provided on the upper surface of the weighing device (4). A feeding assembly is provided on the upper end of the base plate (5). The weighing device (4) is electrically connected to an external control system.

2. The automatic metering screw conveyor for putty powder raw materials according to claim 1, characterized in that, The feeding assembly includes a feeding cylinder (7) fixedly installed on the upper surface of the base plate (5) via a bracket (6), a drive motor (8) fixedly installed on one end of the feeding cylinder (7), and a discharge pipe (9) fixedly connected to the other end of the feeding cylinder (7).

3. The automatic metering screw conveyor for putty powder raw materials according to claim 2, characterized in that, An auger is rotatably installed inside the feeding cylinder (7), the output shaft of the drive motor (8) is fixedly connected to the auger, and the drive motor (8) is electrically connected to an external control system.

4. The automatic metering screw conveyor for putty powder raw materials according to claim 3, characterized in that, The feeding cylinder (7) is provided with a storage tank (10) on the side near the drive motor (8). The bottom outlet of the storage tank (10) is sealed to the flange interface of the feeding cylinder (7) through a mating flange. The inner wall of the storage tank (10) is provided with an anti-stick coating, and the top is provided with a feed pipe (11) with a sealing cover.

5. The automatic metering screw conveyor for putty powder raw materials according to claim 1, characterized in that, The upper end of the support platform (2) is fixedly connected to four guide columns (14), which are arranged in a matrix.

6. The automatic metering screw conveyor for putty powder raw materials according to claim 5, characterized in that, The base plate (5) has through holes (15) at each of its four corners. Guide sleeves are fixedly installed in the through holes (15), and the base plate (5) is slidably sleeved on the guide post (14) through the guide sleeves.

7. The automatic metering screw conveyor for putty powder raw materials according to claim 1, characterized in that, Two electric hydraulic cylinders (12) are fixedly installed at the lower end of the support platform (2), and the electric hydraulic cylinders (12) are electrically connected to the external control system.

8. The automatic metering screw conveyor for putty powder raw materials according to claim 7, characterized in that, The piston rod of the electric hydraulic cylinder (12) passes through the support platform (2) and is fixedly connected to the support plate (13). The two support plates (13) are respectively located on both sides of the lower end of the base plate (5).

Images