Lifting type weighing device for vertical powder weighing machine

Abstract

The utility model relates to the technical field of weighing and subpackaging equipment, in particular to a lifting type weighing device for a vertical powder weighing machine, which is characterized by comprising a track plate, a lifting driving motor, a weighing mechanism, a weighing top block and a motion conversion transmission mechanism, the upper end of the weighing mechanism is fixedly arranged, and the track plate is fixedly connected to the lower end of the weighing mechanism; the lifting driving motor is arranged on the track plate and drives the weighing ejector block to ascend and descend through the motion conversion transmission mechanism, and the motion conversion transmission mechanism is used for converting circular motion output by the lifting driving motor into linear motion driving the weighing ejector block to ascend and descend. According to the utility model, the lifting driving motor and the motion conversion transmission mechanism are matched for driving, so that the weighing top block can be driven to ascend and descend, the weighing top block is not easy to damage in long-time use, the stability and the reliability of equipment operation can be improved, and meanwhile, the subsequent maintenance times and the maintenance cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of weighing and dispensing equipment, specifically to a lifting weighing device for a vertical powder weighing machine. Background Technology

[0002] A vertical powder weighing machine is a specialized device for quantitative weighing and dispensing of powdered materials. It mainly consists of a material hopper for storing the powder and a receiving mechanism. The weight of the discharged material is controlled by the discharge port at the bottom of the hopper in conjunction with the weighing device within the receiving structure, thus achieving weighing and dispensing. For example, the utility model patent with publication number CN221394172U provides a novel vertical powder weighing machine. In existing vertical powder weighing machines, a cylinder is typically used to drive the weighing mechanism to rise and fall. Once the weighing mechanism rises and lifts the material cup, the powder inside can be accurately weighed. However, in actual production, it has been found that the cylinder is prone to damage during frequent extension and retraction, typically requiring replacement every three months. This affects the stability and reliability of the equipment, and also increases the frequency and cost of subsequent maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lifting weighing device for a vertical powder weighing machine. This device uses a lifting drive motor and a motion conversion transmission mechanism to drive the weighing top block to lift and lower. It is less prone to damage during long-term use, which helps to improve the stability and reliability of the equipment operation. At the same time, it also reduces the number of subsequent maintenance and maintenance costs.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A lifting weighing device for a vertical powder weighing machine includes a track plate, a lifting drive motor, a weighing mechanism, a weighing top block, and a motion conversion transmission mechanism. The upper end of the weighing mechanism is fixedly installed, the track plate is fixedly connected to the lower end of the weighing mechanism, the lifting drive motor is installed on the track plate and drives the weighing top block to lift and lower through the motion conversion transmission mechanism, and the motion conversion transmission mechanism is used to convert the circular motion output by the lifting drive motor into linear motion that drives the weighing top block to lift and lower.

[0005] Furthermore, the motion conversion transmission mechanism includes a gear rack and gears. The gears are fixed on the motor shaft of the lifting drive motor. The gear rack is arranged vertically and a guide component is provided between it and the track plate. The guide component is used to guide the lifting of the gear rack. The gears mesh with the gear rack for transmission. The weighing top block is fixedly installed on the upper end of the gear rack.

[0006] Furthermore, the guide assembly includes a matching guide wheel and a guide groove. The left and right sides of the toothed rack are provided with vertically arranged guide grooves. The left and right sides of the toothed rack are provided with multiple vertically spaced guide wheels. The guide wheels are rotatable and are locked onto the track plate by a locking assembly. The guide wheels are embedded in the guide grooves and the two roll in cooperation.

[0007] Furthermore, the locking assembly includes a track shaft, a first locking nut, and a second locking nut. One end of the track shaft passes through the track plate and is locked in place by the first locking nut. The guide wheel is fitted onto the other end of the track shaft and is locked in place by the second locking nut.

[0008] Furthermore, the guide wheel is a bearing.

[0009] Furthermore, it also includes a proximity switch, which is fixedly mounted on a mounting plate, which is fixedly mounted on a track plate. The proximity switch is used to limit the travel of the toothed rack during descent.

[0010] Furthermore, the weighing mechanism includes a weighing sensor, an upper fixed plate, and a lower fixed plate. The upper end of the weighing sensor is fixedly connected to the upper fixed plate, the lower fixed plate is fixedly connected to the lower end of the weighing sensor, and the track plate is fixedly connected to the lower fixed plate.

[0011] Furthermore, the lifting drive motor is a stepper motor.

[0012] Furthermore, the lifting drive motor is fixedly mounted on the motor plate, and the motor plate is fixedly mounted on the track plate.

[0013] As can be seen from the above description, the lifting weighing device for a vertical powder weighing machine provided by this utility model has the following beneficial effects: by using a lifting drive motor and a motion conversion transmission mechanism, the weighing top block can be lifted and lowered. Compared with a cylinder, the lifting drive motor is less prone to damage during long-term use, which helps to improve the stability and reliability of the equipment operation. At the same time, it also reduces the number of subsequent maintenance and maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a lifting weighing device for a vertical powder weighing machine according to the present invention.

[0015] Figure 2 for Figure 1 Top view.

[0016] Figure 3 This is a schematic diagram of the toothed rack structure.

[0017] In the diagram: 1-track plate; 2-lifting drive motor; 3-weighing mechanism; 31-weighing sensor; 32-upper fixed plate; 33-lower fixed plate; 4-weighing top block; 5-motion conversion transmission mechanism; 51-gear rack; 52-gear; 6-guide assembly; 61-guide wheel; 62-guide groove; 7-locking assembly; 71-track shaft; 72-first locking nut; 73-second locking nut; 81-proximity switch; 82-mounting plate; 9-motor plate. Detailed Implementation

[0018] The present invention will be further described below through specific embodiments.

[0019] like Figures 1 to 3 As shown, the present invention discloses a lifting weighing device for a vertical powder weighing machine, comprising a track plate 1, a lifting drive motor 2, a weighing mechanism 3, a weighing top block 4, and a motion conversion transmission mechanism 5. The upper end of the weighing mechanism 3 is fixedly installed, and the track plate 1 is fixedly connected to the lower end of the weighing mechanism 3. The lifting drive motor 2 is mounted on the track plate 1 and drives the weighing top block 4 to lift and lower through the motion conversion transmission mechanism 5. The motion conversion transmission mechanism 5 is used to convert the circular motion output by the lifting drive motor 2 into linear motion that drives the weighing top block 4 to lift and lower.

[0020] By using the lifting drive motor 2 and the motion conversion transmission mechanism 5 in combination, the weighing top block 4 can be lifted and lowered. Compared with a cylinder, the lifting drive motor 2 is less prone to damage during long-term use, which helps to improve the stability and reliability of the equipment operation. At the same time, it will also reduce the number of subsequent maintenance and maintenance costs.

[0021] The motion conversion transmission mechanism 5 includes a gear rack 51 and a gear 52. The gear 52 is fixedly mounted on the motor shaft of the lifting drive motor 2. The gear rack 51 is arranged vertically and a guide component 6 is provided between it and the track plate 1. The guide component 6 is used to guide the lifting and lowering of the gear rack 51. The gear 52 meshes with the gear rack 51 for transmission. The weighing top block 4 is fixedly installed on the upper end of the gear rack 51. Thus, when the lifting drive motor 2 drives the gear 52 to rotate, the gear 52 meshes with the gear rack 51 for transmission, and at the same time, the guide component 6 provides guidance, thereby realizing the lifting and lowering of the gear rack 51.

[0022] The guide assembly 6 includes a matching guide wheel 61 and a guide groove 62. The left and right sides of the toothed rack 51 are provided with the guide groove 62 arranged vertically. The left and right sides of the toothed rack 51 are provided with a plurality of vertically spaced guide wheels 61. The guide wheels 61 are rotatably mounted on the track plate 1 and locked by the locking assembly 7. The guide wheels 61 are embedded in the guide groove 62 and the two roll in cooperation. In this way, the toothed rack 51 can play a good guiding role in lifting and lowering, effectively ensuring the stability and smoothness of the toothed rack 51 when lifting and lowering.

[0023] In addition, preferably, each of the left and right sides of the toothed row 51 is provided with 2-3 vertically spaced guide wheels 61.

[0024] The locking assembly 7 includes a track shaft 71, a first locking nut 72, and a second locking nut 73. One end of the track shaft 71 passes through the track plate 1 and is locked in place by the first locking nut 72. Correspondingly, one end of the track shaft 71 is fixedly provided with a first locking shaft with an outer diameter smaller than its own. The outer circumferential surface of the first locking shaft is provided with a first external thread to facilitate threaded connection with the first locking nut 72. The guide wheel 61 is sleeved on the other end of the track shaft 71 and locked in place by the second locking nut 73. Correspondingly, the other end of the track shaft 71 is fixedly provided with a second locking shaft with an outer diameter smaller than its own. The outer circumferential surface of the second locking shaft is provided with a second external thread to facilitate threaded connection with the second locking nut 73. Preferably, the guide wheel 61 is a bearing, which can effectively ensure its smooth rotation.

[0025] In addition, the lifting weighing device also includes a proximity switch 81, which is fixedly installed on the mounting plate 82, which is fixedly installed on the track plate 1. The proximity switch 81 is used to limit the travel of the toothed rack 51 as it descends. Correspondingly, the toothed rack 51 is made of metal and can sense the proximity switch 81, thereby ensuring that the toothed rack 51 descends accurately into place, that is, ensuring that the weighing top block 4 descends accurately into place.

[0026] The weighing mechanism 3 includes a weighing sensor 31, an upper fixed plate 32 and a lower fixed plate 33. The upper end of the weighing sensor 31 is fixedly connected to the upper fixed plate 32, and the lower fixed plate 33 is fixedly connected to the lower end of the weighing sensor 31. The track plate 1 is fixedly connected to the lower fixed plate 33. The weighing sensor 31 can be a tension-sensitive pressure switch available on the market.

[0027] Preferably, the lifting drive motor 2 is a stepper motor.

[0028] The lifting drive motor 2 is fixedly installed on the motor plate 9, and the motor plate 9 is fixedly installed on the track plate 1 to facilitate the smooth installation of the lifting drive motor 2 on the track plate 1.

[0029] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A lifting weighing device for a vertical powder weighing machine, characterized in that: The device includes a track plate, a lifting drive motor, a weighing mechanism, a weighing top block, and a motion conversion transmission mechanism. The weighing mechanism is fixedly installed at its upper end, and the track plate is fixedly connected to the lower end of the weighing mechanism. The lifting drive motor is mounted on the track plate and drives the weighing top block to move up and down through the motion conversion transmission mechanism. The motion conversion transmission mechanism is used to convert the circular motion output by the lifting drive motor into linear motion that drives the weighing top block to move up and down.

2. The lifting weighing device for a vertical powder weighing machine according to claim 1, characterized in that: The motion conversion transmission mechanism includes a gear rack and a gear. The gear is fixedly mounted on the motor shaft of the lifting drive motor. The gear rack is arranged vertically and a guide component is provided between it and the track plate. The guide component is used to guide the lifting of the gear rack. The gear meshes with the gear rack for transmission. The weighing top block is fixedly installed on the upper end of the gear rack.

3. A lifting weighing device for a vertical powder weighing machine according to claim 2, characterized in that: The guiding assembly includes a matching guide wheel and a guide groove. The left and right sides of the toothed rack are provided with the guide groove arranged vertically. The left and right sides of the toothed rack are provided with a plurality of guide wheels arranged vertically at intervals. The guide wheel is rotatably mounted on the track plate and locked by a locking assembly. The guide wheel is embedded in the guide groove and the two roll in cooperation.

4. A lifting weighing device for a vertical powder weighing machine according to claim 3, characterized in that: The locking assembly includes a track shaft, a first locking nut, and a second locking nut. One end of the track shaft passes through the track plate and is locked in place by the first locking nut. The guide wheel is sleeved on the other end of the track shaft and locked in place by the second locking nut.

5. A lifting weighing device for a vertical powder weighing machine according to claim 3, characterized in that: The guide wheel is a bearing.

6. A lifting weighing device for a vertical powder weighing machine according to claim 2, characterized in that: It also includes a proximity switch, which is fixedly mounted on a mounting plate, which is fixedly mounted on the track plate. The proximity switch is used to limit the travel of the toothed rack during descent.

7. A lifting weighing device for a vertical powder weighing machine according to claim 1, characterized in that: The weighing mechanism includes a weighing sensor, an upper fixed plate, and a lower fixed plate. The upper end of the weighing sensor is fixedly connected to the upper fixed plate, the lower fixed plate is fixedly connected to the lower end of the weighing sensor, and the track plate is fixedly connected to the lower fixed plate.

8. A lifting weighing device for a vertical powder weighing machine according to claim 1, characterized in that: The lifting drive motor is a stepper motor.

9. A lifting weighing device for a vertical powder weighing machine according to claim 1, characterized in that: The lifting drive motor is fixedly mounted on the motor plate, and the motor plate is fixedly mounted on the track plate.

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