Dynamic packing scale sensor mounting structure

Abstract

The utility model relates to a dynamic packing scale sensor mounting structure which comprises a box body and a sensor. A scale cylinder is arranged in the box body, and connecting rods are symmetrically connected between the periphery of the scale cylinder and the top of the box body. The box is characterized in that through holes corresponding to the connecting rods are formed in the top of the box body, frames are arranged on the through holes, and the bottom edges of the frames are connected with the upper ends of the corresponding connecting rods. And gaps are formed between the frame and the top of the box body and between the upper ends of the connecting rods and the peripheries of the corresponding through holes. And supports are arranged on the box body on one side of the frame. The number of the sensors is equal to that of the connecting rods, and the sensors and the connecting rods are located between the frame and the corresponding supports. The sensor is rod-shaped, and the upper side of the inner end of the sensor is provided with a positioning pit. Screw holes are formed in the top edges, corresponding to the positioning pits, of the frame, and studs are arranged in the screw holes. And the lower ends of the studs movably extend into the corresponding positioning pits. According to the utility model, the weighing precision can be improved, and the maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model relates to a packaging scale, in particular to a sensor installation structure on a dynamic packaging scale used for real-time weighing of bulk materials during the packaging process of bulk materials. Background Art

[0002] It is well known in the fertilizer production industry that in the process of bulk fertilizer packaging, a dynamic packaging scale is required to weigh the packaged bulk fertilizer in real time. The traditional dynamic packaging scale sensor installation structure includes a box and a sensor. The box has a scale barrel inside, and there are at least two connecting rods between the scale barrel and the top of the box, and the lower ends of the two connecting rods are respectively hinged on the side walls on the opposite sides of the scale barrel. The sensor is directly installed on the connecting rod. Although the use of this dynamic packaging scale sensor installation structure can achieve real-time weighing in the fertilizer packaging process, since the sensor is directly installed on the connecting rod, when the material falls into the scale barrel, the scale barrel is impacted by the material and will shake. The shaking of the scale barrel will drive the sensor to shake, causing the sensor to change its force direction, thereby causing weighing errors. The long-term shaking of the sensor is easy to be damaged, resulting in high maintenance costs. Therefore, the use of this dynamic packaging scale sensor installation structure has low weighing accuracy and high maintenance costs. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a dynamic packaging scale sensor installation structure. The dynamic packaging scale sensor installation structure can improve weighing accuracy and reduce maintenance costs.

[0004] The above-mentioned problems to be solved by the utility model are achieved by the following technical solutions:

[0005] The utility model discloses a dynamic packaging scale sensor installation structure, comprising a box and a sensor. The box contains a weighing drum, and there are at least two connecting rods between the weighing drum and the top of the box, and the lower ends of the two connecting rods are respectively hinged on two symmetrical side walls of the weighing drum. The utility model is characterized in that: a through hole corresponding to the connecting rod is provided on the top of the box, and a frame is provided above the through hole, and the bottom edge of the frame is connected with the upper end of the corresponding connecting rod. There is a spacing between the frame and the top of the box, and between the upper end of the connecting rod and the surrounding of the corresponding through hole. There is a support on the box on one side of the frame. The number of the sensors is equal to the number of the connecting rods, and they are all located between the frame and the corresponding support. The sensor is rod-shaped, and there are positioning pits on the upper side of the inner end. There are screw holes on the top edge of the frame corresponding to the positioning pits, and there are studs in the screw holes. The lower end of the stud is movable and extends into the corresponding positioning pit. The outer end of the sensor is connected to the corresponding support by means of bolts.

[0006] A further improvement of the utility model is that the inner end of the sensor has a screw hole perpendicular to the longitudinal direction thereof, and the screw hole has a positioning screw. The upper end of the positioning screw has a radial convex head, and the positioning pit is located on the radial convex head.

[0007] A further improvement of the utility model is that the positioning pit and the lower end of the stud are both spherical.

[0008] A further improvement of the utility model is that pin seats (13) are evenly distributed around the outer periphery of the wall of the weighing cylinder, and the lower end of the connecting rod and the corresponding pin seat are hinged together by means of a pin shaft.

[0009] A further improvement of the utility model is that the lower end of the connecting rod is connected with a joint, the lower end of the joint has a pin hole, and the lower end of the connecting rod is hinged on the pin shaft by means of the joint and the pin hole thereon.

[0010] It can be seen from the above technical solutions that the utility model has a through hole corresponding to the connecting rod on the top of the box, and a frame is provided above the through hole, and the bottom edge of the frame is connected to the upper end of the corresponding connecting rod. There is a spacing between the frame and the top of the box, and between the upper end of the connecting rod and the surrounding of the corresponding through hole. There is a support on the box on one side of the frame. The number of the sensors is equal to the number of connecting rods, and they are all located between the frame and the corresponding support. The sensor is rod-shaped, and there is a positioning pit on the upper side of the inner end. There are screw holes on the top edge of the frame corresponding to the positioning pit, and there are studs in the screw holes. The lower end of the stud is movable and extends into the corresponding positioning pit. The outer end of the sensor is connected to the corresponding support by means of bolts. Since the sensors are located between the corresponding support and the frame, they are far away from the weighing barrel. When the weighing barrel is shaken by the impact of the material when the material falls into the weighing barrel, since the sensor is far away from the weighing barrel, the shaking of the weighing barrel will not drive the sensor to shake, and the force direction of the sensor will not change, thereby improving the weighing accuracy. Since the shaking of the scale barrel will not cause the sensor to shake, the sensor is not easily damaged, thereby reducing maintenance costs. Therefore, this dynamic packaging scale sensor installation structure not only improves the weighing accuracy, but also reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation structure of the dynamic packaging scale sensor of the utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of the left side. DETAILED DESCRIPTION

[0013] like Figure 1 and Figure 2As shown, the sensor installation structure of the dynamic packaging scale of the utility model comprises a box 3 and a sensor 8. A weighing barrel 1 is arranged in the box 3, and three connecting rods 12 are arranged between the weighing barrel 1 and the top of the box 3. The three connecting rods 12 are arranged symmetrically along the four sides of the weighing barrel, and they are all arranged vertically, and their lower ends are respectively hinged on the symmetrical side walls of the weighing barrel 1. Three through holes 4 corresponding to the connecting rods 12 are processed on the top of the box 3, and a frame 6 is arranged on the through holes 4. The frame 6 is a square frame, and its bottom edge is processed with screw holes. The upper ends of the connecting rods 12 are processed with threads, and the upper ends of the connecting rods 12 are respectively screwed into the screw holes on the bottom edges of the corresponding frames 6, and the upper ends of the connecting rods 12 are connected to the bottom edges of the corresponding frames 6 by means of nuts 10. There are spacings between the frame 6 and the top of the box 3, and between the upper ends of the connecting rods 12 and the four sides of the corresponding through holes 4. A support 11 is fixed to the top of the box 3 on one side of the frame 6, and the sensor 8 is located between the frame 6 and the corresponding support 11. The sensor 8 is in the shape of a rod, and a positioning pit is processed on the upper side of the inner end 81. Screw holes are processed on the top edge of the frame 6 corresponding to the positioning pit, and studs 7 are arranged in the screw holes. The lower end of the stud 7 is movably extended into the corresponding positioning pit. The outer end 82 of the sensor 8 is connected to the corresponding support 11 by means of bolts 9.

[0014] The inner end of the sensor 8 is processed with a screw hole perpendicular to the longitudinal direction thereof, and the screw hole is equipped with a positioning screw 5. The upper end of the positioning screw 5 is processed with a radial convex head 51, and the positioning pit is located on the radial convex head 51.

[0015] In order to facilitate the movable cooperation between the lower end of the stud 7 and the positioning pit, the positioning pit and the lower end of the stud 7 are both processed into a spherical shape.

[0016] In order to facilitate the connection between the connecting rod 12 and the weighing drum 1, three pin seats (13) are evenly distributed around the outer wall of the weighing drum 1, and the lower end of the connecting rod 12 and the corresponding pin seats 13 are hinged together by means of a pin shaft 14.

[0017] The lower ends of the connecting rods 12 are connected to joints 2, and the lower ends of the joints 2 are processed with pin holes. The lower ends of the connecting rods 12 are hinged on the pin shafts 14 by means of the joints 2 and the pin holes thereon.

Claims

1. A dynamic packaging scale sensor installation structure, comprising a box (3) and a sensor (8); a weighing drum (1) is arranged in the box (3), at least two connecting rods (12) are arranged between the weighing drum (1) and the top of the box (3), and the lower ends of the two connecting rods (12) are respectively hinged on two symmetrical side walls of the weighing drum (1); the characteristics are: The top of the box body (3) is provided with a through hole (4) corresponding to the connecting rod (12), and a frame (6) is provided above the through hole (4), and the bottom edge of the frame (6) is connected to the upper end of the corresponding connecting rod (12); there is a spacing between the frame (6) and the top of the box body (3), and between the upper end of the connecting rod (12) and the surrounding of the corresponding through hole (4); a support (11) is provided on the box body on one side of the frame (6); the number of the sensors (8) is equal to the number of the connecting rods (12), and they are all located between the frame (6) and the corresponding support (11); the sensor (8) is rod-shaped, and the upper side of the inner end (81) thereof is provided with a positioning pit; the top edge of the frame (6) corresponding to the positioning pit is provided with a screw hole, and the screw hole is provided with a stud (7); the lower end of the stud (7) is movably extended into the corresponding positioning pit; the outer end (82) of the sensor (8) is connected to the corresponding support (11) by means of a bolt (9).

2. The dynamic packaging scale sensor installation structure according to claim 1 is characterized in that: The inner end of the sensor (8) is provided with a screw hole perpendicular to the longitudinal direction thereof, and a positioning screw (5) is provided in the screw hole; the upper end of the positioning screw (5) is provided with a radial protrusion (51), and the positioning pit is located on the radial protrusion (51).

3. The dynamic packaging scale sensor installation structure according to claim 2 is characterized in that: The positioning pit and the lower end of the stud (7) are both spherical.

4. The dynamic packaging scale sensor installation structure according to claim 1, 2 or 3, characterized in that: Pin seats (13) are evenly distributed around the outer surface of the cylinder wall of the weighing cylinder (1); the number of the connecting rods (12) is the same as the number of the pin seats (13), and their lower ends are hinged to the corresponding pin seats (13) by means of pin shafts (14).

5. The dynamic packaging scale sensor installation structure according to claim 4 is characterized in that: The lower ends of the connecting rods (12) are connected to joints (2), and the lower ends of the joints (2) have pin holes. The lower ends of the connecting rods (12) are hinged to the corresponding pin shafts (14) by means of the joints (2) and the pin holes thereon.

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