Suspended weighing type intelligent material management cabinet

Abstract

The utility model discloses a suspension weighing type intelligent material management cabinet which comprises a cabinet body, a control measurement module, a weighing module and a connecting rod mechanism, the control measurement module, the weighing module and the connecting rod mechanism are installed in the cabinet body, and the weighing module comprises a bearing frame and a material box arranged in the bearing frame; an upper cross beam is arranged at the top in the cabinet body; the bearing frame is hung on the upper cross beam through a tension sensor; and the tension sensor is electrically connected with the control measurement module. According to the utility model, a suspension concentrated weighing mode is adopted, and the tension sensor only measures the weight of the material box and the internal materials, so that compared with an existing integral cabinet concentrated weighing mode, the tension sensor can be a small-range and high-sensitivity device, and the measurement precision of parts and the accuracy of the system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of warehouse management systems and relates to an intelligent material management cabinet, in particular to a hanging weighing type intelligent material cabinet. Background Art

[0002] In the management and use of materials and parts in high-end intelligent manufacturing and maintenance industries, there are shortcomings such as low labor efficiency, untimely replenishment of parts and materials, and inaccurate quantity statistics. These shortcomings cannot meet the requirements for standardized and refined management of materials and parts in and out of the warehouse. For this reason, intelligent material management technology has emerged.

[0003] The Chinese patent "A high-sensitivity centralized weighing and counting material management cabinet" with application number "201910123360.3" discloses a centralized weighing and counting material management cabinet, including a cabinet, a cabinet chassis, an auxiliary support unit and a control and measurement module. The cabinet is arranged on the cabinet chassis, and a number of stacked material storage drawers are arranged in the cabinet. A weighing unit is arranged on the cabinet chassis to measure the weight of the entire material management cabinet in real time; the auxiliary support unit applies a constant upward support force to the cabinet chassis, and the amplitude of the support force is less than the weight of the cabinet frame when the material is empty; wherein the auxiliary support mechanism can generate a constant upward support force on the cabinet during the measurement process, balancing most of the cabinet's own weight, reducing the load range of the sensor, but not affecting the measurement accuracy, and effectively reducing the sensor range. The problem in the application is that the cabinet itself is heavy, and the range and sensitivity of the weighing unit are related. If a large-range weighing unit is selected, the sensitivity can only be reduced, which ultimately affects the test accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a hanging weighing type intelligent material management cabinet, in which a weighing tension sensor is installed on the cabinet body, and only the material box is installed below the tension sensor, so that the weight of the cabinet body will not be loaded on the tension sensor, so that a sensor with a smaller range can be selected to achieve accurate measurement of the material.

[0005] The technical solution of the utility model is as follows:

[0006] A suspended weighing intelligent material management cabinet comprises a cabinet body, a control and measurement module installed inside the cabinet body, a weighing module and a connecting rod mechanism, wherein the weighing module comprises a load-bearing frame and a material box arranged in the load-bearing frame; an upper crossbeam is installed at the top position inside the cabinet body, and the load-bearing frame is suspended on the upper crossbeam through a tension sensor; the tension sensor is electrically connected to the control and measurement module.

[0007] In the above-mentioned hanging weighing type intelligent material management cabinet, the load-bearing frame is a frame-shaped structure, and a plurality of material boxes are stacked on the load-bearing frame.

[0008] In the above-mentioned suspended weighing type intelligent material management cabinet, each material box position in the load-bearing frame is correspondingly provided with an electrically controlled downward-flipping door, and the downward-flipping door is connected to the front door frame of the cabinet body and isolated from the load-bearing frame structure in the cabinet body.

[0009] In the above-mentioned hanging weighing type intelligent material management cabinet, 4-10 layers of material boxes are arranged in the load-bearing frame inside the cabinet.

[0010] In the above-mentioned hanging weighing type intelligent material management cabinet, the material box is placed on the guide rail in the load-bearing frame and can be pulled out and pushed in along the guide rail.

[0011] In the above-mentioned hanging weighing type intelligent material management cabinet, there are two tension sensors, the upper part of which is connected to the upper crossbeam, and the lower part is connected to the load-bearing frame.

[0012] In the above-mentioned suspended weighing type intelligent material management cabinet, two ball bearings are installed at both ends of the upper crossbeam, the inner ring of the ball bearing is connected to the upper crossbeam, and the outer ring of the ball bearing is fixed in the slot inside the cabinet body.

[0013] In the above-mentioned suspended weighing intelligent material management cabinet, a connecting rod mechanism perpendicular to the direction of the upper crossbeam rod is arranged at the bottom of the cabinet body. The connecting rod mechanism is a rigid rod with joint bearings at both ends, one end of which is fixedly connected to the bottom of the load-bearing frame, and the other end is fixedly connected to the base under the cabinet body.

[0014] In the above-mentioned suspended weighing type intelligent material management cabinet, a display control unit and a downward-flipping door electric lock are also arranged on the front of the cabinet, and the electric lock is isolated from the load-bearing frame structure in the cabinet.

[0015] The beneficial technical effects of the utility model are as follows

[0016] 1. The utility model adopts a hanging centralized weighing method, and the tension sensor only measures the weight of the material box and the internal material. Compared with the existing overall cabinet centralized weighing method, the tension sensor can use a small-range and high-sensitivity device, thereby improving the measurement accuracy of parts and the accuracy of the system.

[0017] 2. A downward-flipping door corresponding to the opening of the material box is installed on the cabinet of the utility model. The downward-flipping door is fixed on the side of the cabinet and is structurally isolated from the load-bearing frame and the material box, so that the opening and closing action of the downward-flipping door does not affect the tension measurement of the load-bearing frame, thereby improving the measurement efficiency and ensuring the measurement accuracy.

[0018] 3. In the implementation of the utility model, the upper and lower ends of the weighing module are respectively limited in freedom, wherein the upper end is installed on the upper beams on the left and right sides of the cabinet and the ball bearings at both ends of the upper beams, so that the frame and the material box can only swing forward and backward around the upper beams; the lower end is limited in the forward and backward swing of the weighing module by setting a connecting rod mechanism perpendicular to the upper beam and joint bearings at both ends of the connecting rod mechanism; through the above-mentioned freedom limitation, the tension sensor only bears downward tension but not external forces in other directions, thereby ensuring the accuracy of weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the material management cabinet of the utility model;

[0020] Figure 2 for Figure 1 Cross-sectional view in DD direction;

[0021] Figure 3 This is the structural diagram of the internal material box of the utility model;

[0022] Figure 4 It is a three-dimensional structural diagram of the utility model;

[0023] Figure 5 It is a three-dimensional structural diagram of the weighing module of the utility model;

[0024] Figure 6 This is a schematic diagram of the bottom structure of the weighing module of the utility model;

[0025] Figure 7 This is a schematic diagram of the installation of the tension sensor of the utility model;

[0026] Figure 8 This is a schematic diagram of the installation of the crossbar and cabinet of the utility model;

[0027] Fig. 9 This is a schematic diagram of the installation structure of the connecting rod mechanism of the utility model;

[0028] The figures are marked as follows: 1-cabinet; 2-tension sensor; 3-load-bearing frame; 4-lower flip door; 5-connecting rod mechanism 5; 6-base; 7-upper cover; 8-material box; 9-upper beam; 10-weighing module; 11-ball bearing; 12-spherical bearing; 13-control and measurement module; 14-guide rail. DETAILED DESCRIPTION

[0029] like Figures 1 to 4As shown, the utility model of the hanging weighing type intelligent material management cabinet includes a cabinet body 1, a control and measurement module 13 installed inside the cabinet body, and a weighing module 10. An upper cover 7 is provided at the upper end of the cabinet body 1, and a base 6 is provided at the lower end. The weighing module 10 includes a load-bearing frame 3 and a material box 8 provided on the load-bearing frame 3; wherein the load-bearing frame 3 is a frame-shaped structure, and a plurality of material boxes 8 are stacked on the load-bearing frame 3. An upper crossbeam 9 is installed at the top position in the cabinet body 1, and the load-bearing frame 3 is suspended on the upper crossbeam 9 through a tension sensor 2; wherein there are two tension sensors 2, which are respectively provided on both sides of the upper crossbeam 9. The tension sensor 2 is electrically connected to the control and measurement module 13. A display control unit and an electric control lock are also provided on the front of the cabinet body 1, and the output result of the control and measurement module 13 is displayed on the screen of the display unit.

[0030] The tension sensor uses a strain type tension and pressure sensor with a measuring range of 20kg to 200kg, which is determined according to demand.

[0031] Usually, 4-10 layers of material boxes 8 are stacked inside the material cabinet, preferably 6 layers of material boxes 8, each material box is used to store different parts. The material box 8 is placed on the guide rail 14 in the load-bearing frame 3 and can move forward and backward along the guide rail 14. When taking and placing parts, the material box 8 is freely pulled out along the guide rail 14 by hand.

[0032] As a preferred embodiment, a downward flip door 4 is provided at a position corresponding to the opening of each material box 8 on the cabinet 1, and the downward flip door is fixed on the side of the cabinet. The flip door and the electric lock are installed on the cabinet, and the space between the flip door and the load-bearing frame is isolated. The opening and closing of the downward flip door and the switch of the electric lock do not affect the tensile force measurement of the load-bearing frame, avoiding the need to wait for a long time for the data to be stable after placing the parts in the existing integral weighing cabinet, improving the measurement efficiency and ensuring the measurement accuracy.

[0033] When weighing with a suspension structure, it is necessary to limit the spatial freedom of the weighing unit so that the tension sensor only bears downward tension and is not subject to external forces in other directions. For this reason, the utility model installs two ball bearings 11 at both ends of the upper crossbeam 9, the inner ring of the ball bearing 11 is fixed on the upper crossbeam, and the outer ring of the ball bearing 11 is fixed on the upper end positions of the left and right sides of the cabinet, so that the frame and the material box can only swing forward and backward around the upper crossbeam 9. A connecting rod mechanism 5 perpendicular to the rod body direction of the upper crossbeam 9 is provided at the bottom of the cabinet 1. One end of the connecting rod mechanism 5 is fixedly connected to the bottom of the load-bearing frame 3 through a joint bearing 12, and the other end is fixedly connected to the base 6 of the cabinet 1 through a joint bearing 12. The connecting rod mechanism 5 connected by the joint bearing limits the front and rear position of the bottom of the load-bearing frame. In this way, the upper crossbeam gives the weighing module a degree of freedom to rotate around the upper crossbeam, and the bottom connecting rod mechanism 5 constrains this degree of freedom; through the limitation of the above degrees of freedom, the tension sensor only bears downward tension but not external forces in other directions, ensuring the accuracy of weighing.

[0034] The utility model adopts a hanging centralized weighing method, and the tension sensor only measures the weight of the material box and the internal material. Compared with the existing integrated cabinet centralized weighing method, the tension sensor can use a small-range and high-sensitivity device, thereby improving the measurement accuracy of parts and the accuracy of the system.

Claims

1. A hanging weighing intelligent material management cabinet, characterized in that: The invention comprises a cabinet (1), a control and measurement module (13) installed inside the cabinet, a weighing module (10) and a connecting rod mechanism (5); the weighing module (10) comprises a load-bearing frame (3) and a material box (8) arranged inside the load-bearing frame (3); an upper crossbeam (9) is installed at the top position inside the cabinet (1), and the load-bearing frame (3) is suspended on the upper crossbeam (9) through a tension sensor (2); the tension sensor (2) is electrically connected to the control and measurement module (13).

2. The hanging weighing intelligent material management cabinet according to claim 1 is characterized in that: The load-bearing frame (3) is a frame-shaped structure, and a plurality of material boxes (8) are stacked and arranged on the load-bearing frame (3).

3. The hanging weighing intelligent material management cabinet according to claim 2 is characterized in that: Each material box (8) in the load-bearing frame (3) is provided with a corresponding electrically-controlled downward-flipping door (4), the downward-flipping door being connected to the front door frame of the cabinet and being isolated from the load-bearing frame (3) structure in the cabinet.

4. The hanging weighing intelligent material management cabinet according to claim 2 is characterized in that: 4 to 10 layers of material boxes (8) are arranged in the load-bearing frame inside the cabinet.

5. The hanging weighing intelligent material management cabinet according to claim 2 is characterized in that: The material box (8) is placed on a guide rail (14) inside the load-bearing frame (3) and can be pulled out and pushed in along the guide rail (14).

6. The hanging weighing intelligent material management cabinet according to claim 1 is characterized in that: There are two tension sensors (2), the upper part of which is connected to the upper crossbeam (9), and the lower part of which is connected to the load-bearing frame (3).

7. The hanging weighing intelligent material management cabinet according to claim 1 is characterized in that: Two ball bearings (11) are respectively installed at the two ends of the upper crossbeam (9), the inner ring of the ball bearing (11) is connected to the upper crossbeam, and the outer ring of the ball bearing (11) is fixed in a slot inside the cabinet (1).

8. The hanging weighing intelligent material management cabinet according to claim 2 is characterized in that: A connecting rod mechanism (5) perpendicular to the rod direction of the upper crossbeam (9) is arranged at the bottom of the cabinet body (1); the connecting rod mechanism (5) is a rigid rod with joint bearings at both ends, one end of which is fixedly connected to the bottom of the load-bearing frame (3) and the other end of which is fixedly connected to a base (6) below the cabinet body (1).

9. The hanging weighing intelligent material management cabinet according to claim 2 is characterized in that: A display control unit and a downward-flipping door electric lock are also provided on the front of the cabinet (1); the electric lock is structurally isolated from the load-bearing frame (3) in the cabinet.

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