阅读说明：本技术 一种悬吊式称重装置 (Suspension type weighing device ) 是由 毛金成 于 2020-07-23 设计创作，主要内容包括：本发明公开了一种悬吊式称重装置,包括称重门架、导轨、升降板、第一驱动机构、称重传感器、称重支架、步进电机、凸轮、锁条、弹簧、安装块和进料管,导轨竖直设置在称重门架的内壁,升降板设置在导轨上,第一驱动机构设置在称重门架上,利用第一驱动机构驱动升降板竖直移动；称重支架通过称重传感器设置在升降板上,安装块和步进电机设置在称重支架上,安装块上设置安装腔,其两侧设置导向孔,锁条设置在导向孔内,弹簧连接两侧锁条,凸轮设置在锁条之间,利用步进电机驱动凸轮以驱动锁条水平运动；采用椭圆形凸轮结构推动锁条向外突出,并且利用弹簧保证锁条与凸轮侧壁紧贴,保证了凸轮对锁条控制的响应程度。(The invention discloses a suspension type weighing device which comprises a weighing portal frame, a guide rail, a lifting plate, a first driving mechanism, a weighing sensor, a weighing support, a stepping motor, a cam, a locking bar, a spring, an installation block and a feeding pipe, wherein the guide rail is vertically arranged on the inner wall of the weighing portal frame; the weighing bracket is arranged on the lifting plate through a weighing sensor, the mounting block and the stepping motor are arranged on the weighing bracket, the mounting block is provided with a mounting cavity, two sides of the mounting cavity are provided with guide holes, the locking strips are arranged in the guide holes, the spring is connected with the locking strips at the two sides, the cam is arranged between the locking strips, and the stepping motor is used for driving the cam to drive the locking strips to move horizontally; the locking bar is pushed to protrude outwards by adopting an oval cam structure, and the locking bar is ensured to be attached to the side wall of the cam by utilizing the spring, so that the response degree of the cam to the control of the locking bar is ensured.)

1. A suspension type weighing device is characterized by comprising a weighing door frame, a guide rail, a lifting plate, a first driving mechanism, a weighing sensor, a weighing support, a stepping motor, a cam, a locking bar, a spring, an installation block and a feeding pipe, wherein the guide rail is vertically arranged on the inner wall of the weighing door frame; the weighing support is arranged on the lifting plate through the weighing sensor, the mounting block and the stepping motor are arranged on the weighing support, a mounting cavity allowing the cam to rotate is concavely arranged in the center of the mounting block, guide holes communicated with the mounting cavity are symmetrically formed in two sides of the mounting block, the locking bars are arranged in the guide holes and connected with the locking bars on two sides through the springs, the cam is arranged between the locking bars on two sides, and the stepping motor is used for driving the cam to rotate so as to drive the locking bars to horizontally move outwards; the inlet pipe is fixed on the lifter plate and extends to the mounting block side edge, the inlet pipe is connected with feeding equipment.

2. An overhead weighing apparatus as set forth in claim 1 wherein said first drive mechanism is an electric cylinder.

3. A suspended weighing apparatus as set forth in claim 1 wherein two of said rails are disposed in parallel on either side of said weighing gantry.

4. A suspended weighing apparatus as set forth in claim 1 wherein said mounting block is chamfered at its lower end.

5. An overhead weighing apparatus as set forth in claim 1 wherein said cam is oval in shape.

6. A suspended weighing apparatus as set forth in claim 1 wherein said mounting cavity is cylindrical in configuration and has a diameter to match the long diameter of said cam.

7. An overhead weighing device as set forth in claim 1 wherein said load cell is a bridge load cell.

Technical Field

The invention relates to a suspension type weighing device.

Background

In the existing automatic weighing equipment, a weighing device is usually hidden at the bottom of a belt of transmission equipment to weigh an object; it is well known that the attachment of a weighing object to another object affects the weighing result.

Disclosure of Invention

Aiming at overcoming the defects in the prior art, the invention mainly aims to overcome the defects in the prior art and discloses a suspension type weighing device which comprises a weighing portal frame, a guide rail, a lifting plate, a first driving mechanism, a weighing sensor, a weighing bracket, a stepping motor, a cam, a locking bar, a spring, an installation block and a feeding pipe, wherein the guide rail is vertically arranged on the inner wall of the weighing portal frame; the weighing support is arranged on the lifting plate through the weighing sensor, the mounting block and the stepping motor are arranged on the weighing support, a mounting cavity allowing the cam to rotate is concavely arranged in the center of the mounting block, guide holes communicated with the mounting cavity are symmetrically formed in two sides of the mounting block, the locking bars are arranged in the guide holes and connected with the locking bars on two sides through the springs, the cam is arranged between the locking bars on two sides, and the stepping motor is used for driving the cam to rotate so as to drive the locking bars to horizontally move outwards; the inlet pipe is fixed on the lifter plate and extends to the mounting block side edge, the inlet pipe is connected with feeding equipment.

Further, the first driving mechanism is an electric cylinder.

Furthermore, two guide rails are arranged on two sides of the weighing portal frame in parallel respectively.

Further, the lower end of the mounting block is provided with a chamfer.

Further, the cam is elliptical.

Further, the installation cavity is of a cylindrical structure, and the diameter of the installation cavity is matched with the long diameter of the cam.

Further, the weighing sensor is a bridge type weighing sensor.

The invention has the following beneficial effects:

an oval cam structure is adopted to push the locking bar to protrude outwards, and the locking bar is ensured to be attached to the side wall of the cam by a spring, so that the response degree of the cam to the control of the locking bar is ensured; the electric cylinder is used as a driving mechanism for driving the lifting plate, so that the lifting position of the mounting block can be better controlled.

Drawings

Fig. 1 is a schematic perspective view of a suspension-type weighing apparatus according to the present invention;

FIG. 2 is a schematic diagram of a mounting block of the suspension-type weighing apparatus according to the present invention;

FIG. 3 is a schematic view of the internal structure of FIG. 2;

FIG. 4 is a diagram illustrating a weighing state of an overhead weighing apparatus according to the present invention;

the reference numbers are as follows:

11. the weighing gantry comprises a weighing gantry body, 12, a guide rail, 13, a lifting plate, 14, a first driving mechanism, 15, a weighing sensor, 16, a weighing support, 17, a stepping motor, 18, a cam, 19, a locking bar, 20, a spring, 21, a mounting block, 22, a feeding pipe, 211, a mounting cavity, 212 and a guide hole,

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A suspension type weighing device is shown in figures 1-4 and comprises a weighing gantry 11, a guide rail 12, a lifting plate 13, a first driving mechanism 14, a weighing sensor 15, a weighing bracket 16, a stepping motor 17, a cam 18, a locking bar 19, a spring 20, a mounting block 21 and a feeding pipe 22; four guide rails 12 are arranged, each side of the weighing gantry 11 is respectively arranged in parallel and vertically, the lifting plate 13 is arranged on the guide rails 12, and the first driving mechanism 14 is arranged on the weighing gantry 11; the first driving mechanism 14 may be an electric cylinder, and the lifting plate 13 is driven by the electric cylinder to vertically move along the guide rail 12; the weighing bracket 16 is arranged on the lifting plate 13 through a weighing sensor 15; load cell 16 is preferably a bridge load cell, with load cell 16 weighing the storage vat 5. The mounting block 21 and the stepping motor 17 are arranged on the weighing bracket 16, the center of the mounting block 21 is concavely provided with a mounting cavity 211 allowing the cam 17 to rotate, two sides of the mounting block 21 are symmetrically provided with guide holes 212 communicated with the mounting cavity 211, two lock bars 19 are arranged and are respectively arranged in the guide holes 212 positioned at two sides of the mounting cavity 211 in a sliding manner, and the two lock bars 19 are connected through a spring; the cam is arranged between two locking strips 19, and the locking strips 19 are tightly attached to the side wall of the cam 18 by using a spring 20; the stepping motor 17 is connected with the cam 18 and drives the cam 18 to rotate; wherein, the cam 18 is an elliptic cylinder; when the stepping motor 17 drives the cam 18 to rotate to the position where the two sides of the short diameter are tightly attached to the locking bar 19, the other side of the locking bar 19 is hidden in the guide hole 212, and when the stepping motor rotates to the position where the long diameter is located, the locking bar 19 moves towards the two sides to protrude out of the mounting block 21, so that the storage barrel 5 is hung. The feed pipe 22 is fixed on the lifting plate 13 and extends to the side of the mounting block 21, and the feed pipe 22 is connected with a feeding device.

In order to enable the mounting block 21 to smoothly enter the opening of the storage barrel 5, the lower end of the mounting block 21 is provided with a chamfer; of course, the two side surfaces of the mounting block 21 are provided with inclined surfaces which are inclined inwards from top to bottom to form a funnel shape with a wide upper part and a narrow lower part; the structure enables the mounting block 21 to enter the storage bucket 5.

For the mounting cavity 211, it is cylindrical in structure, with a diameter matching the long diameter of the cam 18; referring to fig. 2-3, the mounting cavity 211 includes an upper portion and a lower portion; wherein the lower portion is connected with the guide hole 212. When in use, the cam 18 is arranged at the lower part of the mounting cavity 211 and extends to the upper part of the mounting cavity 211, and the inner wall of the mounting cavity 211 is used for guiding the horizontal rotation of the cam 18.

When the invention is used, as shown in fig. 1-4, a storage barrel is placed below an installation block 21, a first driving mechanism 14 drives a lifting plate 13 to move downwards, so that the installation block 21 enters the storage barrel 5, meanwhile, a feed pipe 22 also enters the storage barrel 5, a stepping motor 17 drives a cam 18 to rotate to move locking strips 19 on two sides outwards of the installation block 21, so that the locking strips 19 hook the storage barrel 5, then the storage barrel 5 is lifted by the upward movement of the first driving mechanism 14, then the material is filled into the storage barrel 5 through the feed pipe 22, weighing is carried out through a weighing sensor 15, and when the set weight is reached, the feed pipe 22 stops feeding; then, the cam 118 is driven to rotate by the stepping motor 15, the locking bar 19 moves towards the center of the mounting block 21 by the elasticity of the spring 20, the mounting block 21 is moved out of the storage bucket 5 by the first driving mechanism 14, a worker moves the storage bucket away, and the storage bucket is placed into a new storage bucket to continue the steps for filling and weighing.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the invention; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the invention.