Automatic scale calibration device

Abstract

The invention relates to the technical field of scale calibration devices, in particular to an automatic scale calibration device. The system comprises a plant, a crane, a hoisting device, a counterweight and a batching scale, a support is fixedly installed on a roof of a plant, a rail is fixedly installed at the bottom of the support, a traveling crane is installed on the rail, two hoisting devices are symmetrically connected to the traveling crane, at least two supports are fixedly installed in the plant at intervals, a batching scale is installed on each support, and a weighing sensor is fixedly installed on each batching scale. The batching scale is located below the track, a counter weight frame is placed on the outer side close to the batching scale, and at least one counter weight is placed on the counter weight frame. The automatic scale calibration device is reasonable and compact in structure and convenient to use, achieves the purpose of automatic and accurate scale calibration through matched use of the hoisting device, the balance weight, the weighing sensor and the batching scale, has the advantages of being safe and reliable, facilitates operation, greatly improves working efficiency, and reduces labor intensity and potential safety hazards of operators.

Description

Technical Field

[0001] The invention relates to the technical field of calibration devices, in particular to an automatic calibration device. Background Art

[0002] In the production process of calcium carbide, calibration is done manually, and manual calibration has many disadvantages, such as low efficiency, large errors, high labor costs, and high labor intensity. Especially on fast-paced production lines, manual calibration often cannot ensure that the weight of each batch of products meets the standard, which brings challenges to production quality control. The main factors are as follows: (1) Human error: Manual operation is easily affected by factors such as personal experience and the placement of weights, which may lead to inaccurate calibration results. For example, visual errors may occur when reading on site, and typos may occur when recording data. (2) Irregular operation: Different people may use different methods and processes when calibrating the scale, which makes it difficult to ensure the standardization of the operation, thus affecting the accuracy of the calibration. (3) Time-consuming: Manual calibration usually requires multiple measurements and adjustments. The operation process is cumbersome, consumes a lot of time and manpower, and has high labor intensity. When personnel lift the 20kg weight up and down, there is a risk of improper placement, resulting in the risk of it falling and causing personal injury.

[0003] Therefore, it is particularly important to develop a device that can automatically, quickly and accurately calibrate weight, which not only improves the production efficiency of enterprises, but also effectively avoids economic losses caused by weight errors. Summary of the invention

[0004] The present invention provides an automatic weighing device, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that in the production process of calcium carbide, weighing is done manually, and the manual weighing method has the problems of low efficiency, large errors, high labor costs, high labor intensity and potential safety hazards.

[0005] The technical solution of the present invention is achieved through the following measures: an automatic weighing device, including a factory building, a crane, a hoisting device, a counterweight and a batching scale; a support is fixedly installed on the roof of the factory building, a track is fixedly installed at the bottom of the support, a crane is installed on the track, two hoisting devices are symmetrically connected to the crane, at least two brackets are fixedly installed at intervals in the factory building, a batching scale is installed on the bracket, a weighing sensor is fixedly installed on the batching scale, the batching scale is located below the track, a counterweight rack is placed on the outside close to the batching scale, and at least one counterweight is placed on the counterweight rack.

[0006] The following are further optimizations and / or improvements to the above technical solutions: The counterweight comprises a weight box, in which weights are placed, and lifting ears are fixedly connected to the left top and the right top of the weight box respectively.

[0007] The hoisting device is an electric hoist, a hoisting chain is connected to the electric hoist, and a hook is fixedly connected to the lower end of the hoisting chain.

[0008] A weight platform is fixedly installed on the top front side of the batching scale, the track is located directly above the weight platform, and corresponding limiters are fixedly installed on the weight platform and the crane respectively.

[0009] The above-mentioned batching scale is barrel-shaped with a larger top and a smaller bottom. A cover plate is fixedly installed on the top of the batching scale, a feed port is arranged on the rear side of the cover plate, a lower material bin is fixedly installed through a frame just above the feed port of the cover plate, a lower material bin has a lower material port at the bottom, a feed pipe is fixedly connected between the lower material port of the lower material bin and the feed port of the cover plate, and a valve is fixedly installed on the feed pipe.

[0010] The above valve is a solenoid valve or a pneumatic valve.

[0011] The invention has a reasonable and compact structure and is easy to use. It realizes the purpose of automatic and accurate calibration through the coordinated use of a lifting device, a counterweight, a weighing sensor and a batching scale. It has the characteristics of safety and reliability, facilitates operation, greatly improves work efficiency, and reduces the labor intensity and safety hazards of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the main structure of the present invention in a working state.

[0013] The codes in the attached drawings are: 1 for crane, 2 for lifting device, 3 for counterweight, 4 for batching scale, 5 for track, 6 for bracket, 7 for counterweight rack, 8 for lifting ear, 9 for lifting chain, 10 for weight platform, 11 for lower bin, 12 for feed pipe, and 13 for cover plate. DETAILED DESCRIPTION

[0014] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0015] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached Figure 1 The layout is described in detail, such as the positional relationship of front, back, top, bottom, left, right, etc., which is based on the attached manual. Figure 1 It is determined by the layout direction.

[0016] The present invention will be further described below in conjunction with embodiments and drawings: As attached Figure 1As shown, the automatic weighing device includes a factory building, a crane 1, a hoisting device 2, a counterweight 3 and a batching scale 4; a support is fixedly installed on the roof of the factory building, a track 5 is fixedly installed at the bottom of the support, a crane 1 is installed on the track 5, two hoisting devices 2 are symmetrically connected to the crane 1, at least two brackets 6 are fixedly installed at intervals in the factory building, a batching scale 4 is installed on the brackets 6, a weighing sensor is fixedly installed on the batching scale 4, the batching scale 4 is located below the track 5, a counterweight frame 7 is placed on the outside close to the batching scale 4, and at least one counterweight 3 is placed on the counterweight frame 7. The crane 1 and the weighing sensor are known and used in the prior art. The weighing sensor is in contact with the bracket 6 and can weigh the materials in the batching scale 4. The signal measured by the weighing sensor can be transmitted to the control room for remote detection and calibration by the operator. A weighing display instrument can also be set on site. The weighing display instrument can include 3 to 4 sensor input channels, a central controller, an operation panel with various function buttons and a display screen. Each sensor input channel is configured with a weighing sensor. The central controller is parameterized through the function buttons on the operation panel, and the weight value of each sensor input and the total weight of all sensor inputs can be cyclically displayed on the display screen by operating different function buttons. In this way, the purpose of automatic and accurate calibration is achieved through the coordinated use of the hoisting device 2, the counterweight 3, the weighing sensor and the batching scale 4. It is safe and reliable, convenient to operate, greatly improves work efficiency, and reduces the labor intensity and safety hazards of operators.

[0017] The above automatic calibration device can be further optimized and / or improved according to actual needs: As attached Figure 1 As shown, the counterweight 3 includes a weight box, in which weights are placed, and the left and right tops of the weight box are respectively fixedly connected with lifting ears 8. The lifting ears 8 are convenient for lifting.

[0018] As attached Figure 1 As shown, the hoisting device 2 is an electric hoist, on which a hoisting chain 9 is connected, and a hook is fixedly connected at the lower end of the hoisting chain 9. During operation, the electric hoist is connected together through the hook and the lifting lug 8 on the weight box.

[0019] As attached Figure 1As shown, a weight platform 10 is fixedly installed on the top front side of the batching scale 4, and the track 5 is located directly above the weight platform 10. Corresponding limiters are fixedly installed on the weight platform 10 and the crane 1. The limiter can be a well-known and commonly used fire-off limiter, which can limit the rise and fall of the counterweight 3; an upper limiter can be installed on the crane 1 through a support plate, and the upper limiter limits the rise of the counterweight 3. A lower limiter can be installed on the bracket 6, and the lower limiter can limit the descent of the counterweight 3. When the lower limit is reached, the counterweight 3 just sits on the bracket 6, and the batching scale 4 can be calibrated. At this time, there may be no material in the batching scale 4, and the reading of the batching scale 4 is the weight of the counterweight 3. If there is any deviation, it needs to be corrected manually or by machine.

[0020] As attached Figure 1 As shown, the batching scale 4 is a barrel-shaped one with a larger top and a smaller bottom. A cover plate 13 is fixedly installed on the top of the batching scale 4, and a feed port is arranged on the rear side of the cover plate 13. A lower bin 11 is fixedly installed through a frame directly above the feed port of the cover plate 13. A lower bin 11 is provided with a feed port at the bottom. A feed pipe 12 is fixedly connected between the feed port of the lower bin 11 and the feed port of the cover plate 13, and a valve is fixedly installed on the feed pipe 12. The lower bin 11 is located behind the crane 1, and the lower bin 11 and the crane 1 are staggered and do not affect each other during operation. The batching scale 4 is a barrel-shaped one with a larger top and a smaller bottom. A discharge port may be arranged at the bottom of the batching scale 4, and a valve is fixedly installed on the discharge port, so that the material in the lower bin 11 can enter the batching scale 4 through the feed pipe 12, and flow from the discharge port to the next process after being weighed in the batching scale 4.

[0021] The valve is a solenoid valve or a pneumatic valve as required.

[0022] Advantages of the present invention: 1. High-precision sensor: The high-precision load sensor (weighing sensor) is used to capture and transmit the precise weight information of the material in real time to ensure the accuracy of the measurement results.

[0023] 2. Automatically calibrate according to the weight value of the preset weight (weight box), without manual intervention, and can be completed by simply starting the central control operation, which greatly improves the calibration efficiency and accuracy.

[0024] 3. Real-time monitoring and alarm: The automatic calibration device of the present invention can be connected to the cloud platform through the Internet of Things technology to achieve real-time monitoring and data analysis of weight. Once an abnormal weight is found, the alarm mechanism is immediately triggered to remind the operator to deal with it in time.

[0025] 4. Easy to integrate and maintain: The device is modularly designed and easy to integrate with existing production lines. It also provides convenient maintenance and reduces maintenance costs.

[0026] The working process of the present invention is as follows: the walking function is realized by the crane 1 and the track 5 for the electric hoist, and a two-ton electric hoist is adopted. The two electric hoists lift the weight box to the specified position at the same time, and the limit is installed. After it is in place, the function of automatically descending and stopping is realized, and remote control is realized; at this time, the batching scale 4 can be in an empty state, and three (or four or more) batching scales 4 are installed with weight platforms 10 on the top. After receiving the instruction, the main control room places the weight box on the corresponding weight platform 10, and then calibrates the batching scale 4 in turn. After the calibration is completed one by one, the crane 1 drives the electric hoist back to the original position to place the weight box on the counterweight frame 7, and no personnel operation is required on site.

[0027] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. An automatic calibration device, characterized in that It includes a factory building, a crane, a lifting device, a counterweight and a batching scale; a support is fixedly installed on the roof of the factory building, a track is fixedly installed on the bottom of the support, a crane is installed on the track, two lifting devices are symmetrically connected to the crane, at least two brackets are fixedly installed at intervals in the factory building, a batching scale is installed on the bracket, a weighing sensor is fixedly installed on the batching scale, the batching scale is located below the track, a counterweight rack is placed on the outside close to the batching scale, and at least one counterweight is placed on the counterweight rack.

2. The automatic calibration device according to claim 1, characterized in that The counterweight comprises a weight box, in which weights are placed, and lifting ears are respectively fixedly connected to the left top and the right top of the weight box.

3. The automatic calibration device according to claim 1 or 2, characterized in that The hoisting device is an electric hoist, a hoisting chain is connected to the electric hoist, and a hook is fixedly connected to the lower end of the hoisting chain.

4. The automatic weighing device according to claim 1 or 2, characterized in that A weight platform is fixedly installed on the top front side of the batching scale, the track is located directly above the weight platform, and corresponding limiters are fixedly installed on the weight platform and the crane respectively.

5. The automatic weighing device according to claim 3, characterized in that A weight platform is fixedly installed on the top front side of the batching scale, the track is located directly above the weight platform, and corresponding limiters are fixedly installed on the weight platform and the crane respectively.

6. The automatic weighing device according to claim 1 or 2, characterized in that The batching scale is barrel-shaped with a larger top and a smaller bottom. A cover plate is fixedly installed on the top of the batching scale, a feed port is arranged on the rear side of the cover plate, a lower material bin is fixedly installed through a frame just above the feed port of the cover plate, a lower material bin has a lower material port at the bottom, a feed pipe is fixedly connected between the lower material port of the lower material bin and the feed port of the cover plate, and a valve is fixedly installed on the feed pipe.

7. The automatic weighing device according to claim 3, characterized in that The batching scale is barrel-shaped with a larger top and a smaller bottom. A cover plate is fixedly installed on the top of the batching scale, a feed port is arranged on the rear side of the cover plate, a lower material bin is fixedly installed through a frame just above the feed port of the cover plate, a lower material bin has a lower material port at the bottom, a feed pipe is fixedly connected between the lower material port of the lower material bin and the feed port of the cover plate, and a valve is fixedly installed on the feed pipe.

8. The automatic weighing device according to claim 5, characterized in that The batching scale is barrel-shaped with a larger top and a smaller bottom. A cover plate is fixedly installed on the top of the batching scale, a feed port is arranged on the rear side of the cover plate, a lower material bin is fixedly installed through a frame just above the feed port of the cover plate, a lower material bin has a lower material port at the bottom, a feed pipe is fixedly connected between the lower material port of the lower material bin and the feed port of the cover plate, and a valve is fixedly installed on the feed pipe.

9. The automatic weighing device according to claim 6, characterized in that The valve is a solenoid valve or a pneumatic valve.

10. The automatic weighing device according to claim 8, characterized in that The valve is a solenoid valve or a pneumatic valve.

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