A weighing sensor sensitivity detection device

Abstract

The present invention relates to the technical field of detection equipment, and proposes a weighing sensor sensitivity detection device, including a detection box, and an installation door installed on one side of the detection box for replacing weights, a loading and unloading mechanism for conveying the weighing sensor is provided at the lower part of the detection box, and a detection mechanism for detecting the sensitivity of the weighing sensor is provided inside the detection box. The present invention realizes the detection of the sensitivity of the weighing sensor by placing the weights on the weighing sensor, and achieves the purpose of measuring multiple locations on the weighing surface of the weighing sensor by setting a plurality of fixed folding plates and the corresponding weights thereunder, thereby improving the diversity of the detection position, increasing the detection accuracy, and facilitating the promotion of the equipment. In addition, by the different installation heights of the traction components in different drive slots, the effect of each weight leaving the weighing sensor in turn is achieved, thereby enriching the detection data and further improving the detection quality.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a sensitivity detection device for a weighing sensor. Background Art

[0002] After the weighing sensor is produced, it is necessary to test the sensitivity of the weighing sensor to ensure the quality of the weighing sensor. The existing weighing sensor sensitivity detection device mainly places different weights on the weighing sensor in sequence, and determines the sensitivity of the sensor by converting the value of the electrical signal transmitted by the sensor. However, it generally only detects one position on the weighing surface of the sensor, making the detection data very one-sided and not conducive to improving the detection accuracy. In view of this, we propose a weighing sensor sensitivity detection device. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the existing weighing sensor detection device, that is, the detection position is single, which is not conducive to improving the detection accuracy, and to propose a weighing sensor sensitivity detection device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A weighing sensor sensitivity detection device comprises a detection box and a mounting door installed on one side of the detection box for replacing weights, a loading and unloading mechanism for conveying the weighing sensor is provided at the lower part of the detection box, and a detection mechanism for detecting the sensitivity of the weighing sensor is provided inside the detection box;

[0006] The detection mechanism includes a driving cylinder installed on the top of the detection box, a driving block is provided at the output end of the driving cylinder, a driving member is slidably installed in the detection box, a driving sleeve is provided on the driving member and is slidably connected to the driving block, and the inner cavity of the driving sleeve is connected to the inner cavity of the driving member, a plurality of fixed folding plates for hanging weights are provided under the driving member, and a traction component for controlling the lifting and lowering of the weights is provided in the driving sleeve.

[0007] Preferably, the lower portion of the fixed folding plate is elastically hinged with two fixed half rings.

[0008] Preferably, the traction assembly includes a traction sleeve rotatably installed in the driving sleeve, a traction gear is provided on the outside of the traction sleeve, and a traction rack meshing with the traction gear is provided on the outside of the driving block. A traction rope with one end fixed to a fixed folding plate is provided on the traction sleeve and the driving block. A ratchet is fixedly installed inside the traction sleeve, a limit plate is elastically installed inside the driving sleeve, a pawl meshing with the ratchet is elastically hinged on one side of the limit plate, and a limit rod is slidably installed in the driving sleeve, one end of the limit rod is fixed to the limit plate, and the other end is slidably matched with the traction rack.

[0009] Preferably, the loading and unloading mechanism includes a transfer member rotatably mounted on the bottom of the detection box, both ends of the transfer member are provided with bearing components for placing weighing sensors, and the middle part of the transfer member is provided with a transmission component.

[0010] Preferably, the bearing assembly includes a bearing plate elastically mounted on a transfer member, a fixing rod is rotatably mounted on the transfer member, a fixing connecting rod having one end hinged to the bearing plate is rotatably mounted in the middle of the fixing rod, and a fixing sleeve is mounted on the transfer member and contacts the bearing plate.

[0011] Preferably, the transmission assembly includes a transmission rod fixedly connected to the output end of the driving cylinder, a transmission sleeve 1 is rotatably mounted on the detection box and slidingly cooperates with the transmission rod, a guide rod is provided at one end of the transmission rod, a guide groove slidably cooperates with the guide rod is provided in the transmission sleeve 1, a transmission block 1 is elastically mounted at the lower part of the transmission sleeve, a transmission sleeve 2 is rotatably mounted on the detection box and fixedly connected to the transfer member, and a transmission block 2 slidably cooperates with the transmission block 1 is provided in the transmission sleeve 2.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention realizes the detection of the sensitivity of the weighing sensor by placing weights on the weighing sensor, and achieves the purpose of measuring multiple positions on the weighing surface of the weighing sensor by setting a plurality of fixed folding plates and the corresponding weights thereunder, thereby improving the diversity of the detection positions, increasing the detection accuracy, and facilitating the promotion of the equipment. In addition, by the different installation heights of the traction components in different driving slots, the effect of each weight leaving the weighing sensor in turn is achieved, thereby enriching the detection data and further improving the detection quality.

[0014] 2. The present invention realizes automatic loading and unloading of the weighing sensor through the cooperation of the transmission sleeve 1, the transmission sleeve 2, the transmission block 1 and the transmission block 2, and achieves the function of fixing the weighing sensor with the fixed rod through the cooperation of the bearing plate and the fixed connecting rod, further improving the stability of the weighing sensor during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 It is a front cross-sectional view of the present invention;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0018] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0019] Figure 5 It is a schematic diagram of the structure of the traction assembly of the present invention;

[0020] Figure 6 It is a schematic diagram of the transmission assembly structure of the present invention.

[0021] In the figure: 1. detection box; 2. loading and unloading mechanism; 21. transfer part; 22. bearing assembly; 221. bearing plate; 222. fixed sleeve; 223. fixed rod; 224. fixed connecting rod; 23. transmission assembly; 231. transmission rod; 232. guide rod; 233. transmission sleeve one; 234. guide groove; 235. transmission block one; 236. transmission sleeve two; 237. transmission block two; 3. detection mechanism; 31. driving cylinder; 32. driving block; 33. driving member; 34. driving sleeve; 35. fixed folding plate; 36. fixed half ring; 37. traction rope; 38. traction assembly; 381. traction sleeve; 382. traction gear; 383. traction rack; 384. ratchet; 385. pawl; 386. limit plate; 387. limit rod; 4. installation door. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1

[0024] Reference Figure 1-Figure 6 A weighing sensor sensitivity detection device includes a detection box 1 and an installation door 4 installed on one side of the detection box 1 for replacing weights. A loading and unloading mechanism 2 for conveying the weighing sensor is provided at the lower part of the detection box 1. A detection mechanism 3 for detecting the sensitivity of the weighing sensor is provided inside the detection box 1. During detection, the weighing sensor is transported to the inside of the detection box 1 through the loading and unloading mechanism 2, and then detected by the detection mechanism 3. After the detection is completed, the weighing sensor that has been detected is transported out through the loading and unloading mechanism 2. In addition, the installation door 4 installed on one side of the detection box 1 can be used to replace the weights on the detection mechanism 3.

[0025] The detection mechanism 3 includes a driving cylinder 31 installed on the top of the detection box 1, and a driving block 32 is provided at the output end of the driving cylinder 31. A driving member 33 is slidably installed in the detection box 1, and a driving sleeve 34 slidably connected to the driving block 32 is provided on the driving member 33, and the inner cavity of the driving sleeve 34 is communicated with the inner cavity of the driving member 33. A plurality of fixed folding plates 35 for hanging weights are provided below the driving member 33, and a traction assembly 38 for controlling the lifting and lowering of the weights is provided in the driving sleeve 34. After the weighing sensor is transported to the detection box 1 by the loading and unloading mechanism 2, the driving cylinder 31 is started to control the driving block 32 to descend, and under the action of the gravity of the driving sleeve 34 and the driving member 33 themselves, the driving sleeve 34 and the driving member 33 also slowly descend until they fall on the position as shown in the figure. Figure 2 When the internal slide of the detection box 1 shown in the figure descends, the fixed folding plate 35 will be driven to descend together, so that the weights installed at the bottom thereof will fall on the weighing sensor. A number of fixed folding plates 35 represent that a number of weights are arranged at the bottom thereof, thereby achieving the purpose of measuring multiple locations on the weighing surface of the weighing sensor, thereby improving the diversity of the detection position, increasing the detection accuracy, and being conducive to the promotion of the equipment.

[0026] Two fixed half rings 36 are elastically hinged at the lower part of the fixed folding plate 35. When installing the weight, the fixed half ring 36 can be rotated to open, and then the upper hook of the weight is placed between the two fixed half rings 36, and then the fixed half ring 36 is loosened to complete the installation of the weight.

[0027] The traction assembly 38 includes a traction sleeve 381 rotatably mounted in the drive sleeve 34, a traction gear 382 is provided on the outside of the traction sleeve 381, a traction rack 383 meshing with the traction gear 382 is provided on the outside of the drive block 32, a traction rope 37 with one end fixed to the fixed folding plate 35 is provided on the traction sleeve 381 and the drive block 32, a ratchet 384 is fixedly mounted inside the traction sleeve 381, a limit plate 386 is elastically mounted inside the drive sleeve 34, a pawl 385 meshing with the ratchet 384 is elastically hinged on one side of the limit plate 386, a limit rod 387 is slidably mounted inside the drive sleeve 34, one end of the limit rod 387 is fixed to the limit plate 386, and the other end is slidably matched with the traction rack 383, as shown in FIG. Figure 2As shown, a plurality of driving grooves are provided in the driving sleeve 34, each of which is provided with a corresponding traction assembly 38, and different traction assemblies 38 are installed at different horizontal heights. When the driving member 33 falls to the bottom of the slide groove and stops moving, the driving block 32 moves downward under the action of the driving cylinder 31. During the movement, the traction rack 383 and the traction gear 382 provided thereon are engaged with each other to drive the traction sleeve 381 to rotate. The traction sleeve 381 controls the fixed folding plate 35 to move downward through the traction rope 37 until all the weights fall onto the weighing sensor. After the detection is completed, the driving cylinder 31 controls the driving block 32 to move upward. During the upward movement, the traction rack 383 and the traction gear 382 cooperate to control the weight to move slowly upward until it leaves the weighing sensor. Due to the different installation heights of the traction components 38 in different driving slots, the effect of each weight leaving the weighing sensor in turn can be achieved, thereby enriching the detection data and further improving the detection quality. In addition, the ratchet 384 and the pawl 385 installed in the traction sleeve 381 can prevent the traction sleeve 381 from rotating clockwise under the action of the weight gravity. Figure 5 As shown, the upper and lower ends of the traction rack 383 are extended, so when it moves, its upper or lower end will first contact the limit rod 387, and squeeze the limit rod 387 to drive the limit plate 386 to move backward, thereby separating the ratchet 384 and the pawl 385, so that when the driving block 32 descends, the traction rack 383 arranged thereon drives the traction sleeve 381 to rotate clockwise through the engagement with the traction gear 382, ​​thereby improving the stability of the weight installed in the detection mechanism 3.

[0028] Embodiment 2

[0029] Reference Figure 1-Figure 6 This embodiment is basically the same as the first embodiment, and is more optimized in that the loading and unloading mechanism 2 includes a transfer member 21 rotatably installed at the bottom of the detection box 1, and both ends of the transfer member 21 are provided with a bearing assembly 22 for placing a weighing sensor, and a transmission assembly 23 is provided in the middle of the transfer member 21. During detection, the weighing sensor is first placed on the bearing assembly 22, and then the transfer member 21 is driven to rotate by the transmission assembly 23, so that the weighing sensor placed on the bearing assembly 22 is transported to the inside of the detection box 1 for detection.

[0030] The bearing assembly 22 includes a bearing plate 221 elastically mounted on the transport member 21, a fixing rod 223 is rotatably mounted on the transport member 21, a fixing connecting rod 224 with one end hinged to the bearing plate 221 is rotatably mounted in the middle of the fixing rod 223, and a fixing sleeve 222 is mounted on the transport member 21 to abut against the bearing plate 221. Figure 1As shown, a data interface is provided on the transfer member 21. Before placement, the inspector needs to connect the data transmission line on the weighing sensor to the data interface, and then place the main body of the weighing sensor on the load-bearing plate 221. Under the action of its gravity, the load-bearing plate 221 will only move to a position that conflicts with the fixed sleeve 222. During its descent, the fixed rod 223, under the action of the fixed link 224, retracts toward the inner side of the load-bearing plate 221, thereby fixing the weighing sensor on the load-bearing plate 221, further improving the stability of the weighing sensor during detection.

[0031] The transmission assembly 23 includes a transmission rod 231 fixedly connected to the output end of the driving cylinder 31, a transmission sleeve 233 slidably matched with the transmission rod 231 is rotatably installed on the detection box 1, a guide rod 232 is provided at one end of the transmission rod 231, a guide groove 234 slidably matched with the guide rod 232 is provided in the transmission sleeve 233, a transmission block 235 is elastically installed at the lower part of the transmission sleeve 233, a transmission sleeve 236 fixedly connected to the transfer member 21 is rotatably installed on the detection box 1, and a transmission block 237 slidably matched with the transmission block 235 is provided in the transmission sleeve 236, and the detection box 1 After the end, the driving cylinder 31 will synchronously drive the transmission rod 231 to move upward. During the upward movement, the guide rod 232 installed at the bottom thereof drives the transmission sleeve 1 233 to rotate by cooperating with the guide groove 234 provided in the transmission sleeve 1 233. The transmission block 1 235 elastically installed at the bottom of the transmission sleeve 1 233 drives the rotation of the transmission sleeve 2 236 by engaging with the transmission block 237, thereby driving the transfer member 21 to rotate, thereby realizing the loading and unloading of the symmetrical weighing sensor. When the transmission sleeve 1 233 rotates in the opposite direction under the cooperation of the guide rod 232 and the guide groove 234, as shown in FIG. Figure 4 As shown, the inclined surface of the transmission block 1 235 contacts the inclined surface of the transmission block 2 237 and cannot form a clamping state, so the transmission sleeve 2 236 cannot be driven to rotate.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weighing sensor sensitivity detection device, comprising a detection box (1), and a mounting door (4) mounted on one side of the detection box (1) for replacing a weight, characterized in that: A loading and unloading mechanism (2) for conveying a weighing sensor is provided at the lower part of the detection box (1), and a detection mechanism (3) for detecting the sensitivity of the weighing sensor is provided inside the detection box (1); The detection mechanism (3) comprises a driving cylinder (31) mounted on the top of the detection box (1), a driving block (32) being provided at the output end of the driving cylinder (31), a driving member (33) being slidably mounted in the detection box (1), a driving sleeve (34) being slidably connected to the driving block (32) being provided on the driving member (33), and an inner cavity of the driving sleeve (34) being communicated with an inner cavity of the driving member (33), a plurality of fixed folding plates (35) for hanging weights being provided below the driving member (33), and a traction assembly (38) for controlling the lifting and lowering of the weights being provided in the driving sleeve (34); The traction assembly (38) comprises a traction sleeve (381) rotatably mounted in a driving sleeve (34); a traction gear (382) is provided on the outside of the traction sleeve (381); a traction rack (383) meshing with the traction gear (382) is provided on the outside of the driving block (32); and a traction rope (37) with one end fixedly connected to a fixed folding plate (35) is provided on both the traction sleeve (381) and the driving block (32).

2. A weighing sensor sensitivity detection device according to claim 1, characterized in that: The lower part of the fixed folding plate (35) is elastically hinged with two fixed half rings (36).

3. A weighing sensor sensitivity detection device according to claim 1, characterized in that: A ratchet (384) is fixedly installed inside the traction sleeve (381), a limit plate (386) is elastically installed inside the drive sleeve (34), a pawl (385) that meshes with the ratchet (384) is elastically hinged on one side of the limit plate (386), and a limit rod (387) is slidably installed inside the drive sleeve (34), one end of the limit rod (387) is fixedly connected to the limit plate (386), and the other end is slidably engaged with the traction rack (383).

4. A weighing sensor sensitivity detection device according to claim 1, characterized in that: The loading and unloading mechanism (2) comprises a transfer member (21) rotatably mounted on the bottom of the detection box (1), both ends of the transfer member (21) are provided with a bearing assembly (22) for placing a weighing sensor, and the middle of the transfer member (21) is provided with a transmission assembly (23).

5. A weighing sensor sensitivity detection device according to claim 4, characterized in that: The bearing assembly (22) comprises a bearing plate (221) elastically mounted on the transfer member (21); a fixing rod (223) is rotatably mounted on the transfer member (21); a fixing connecting rod (224) having one end hinged to the bearing plate (221) is rotatably mounted in the middle of the fixing rod (223); and a fixing sleeve (222) is mounted on the transfer member (21) and contacts the bearing plate (221).

6. A weighing sensor sensitivity detection device according to claim 4, characterized in that: The transmission assembly (23) comprises a transmission rod (231) fixedly connected to the output end of the driving cylinder (31); a transmission sleeve (233) slidably engaged with the transmission rod (231) is rotatably mounted on the detection box (1); a guide rod (232) is provided at one end of the transmission rod (231); a guide groove (234) slidably engaged with the guide rod (232) is provided in the transmission sleeve (233); and a transmission block (235) is elastically mounted at the lower portion of the transmission sleeve (233).

7. A weighing sensor sensitivity detection device according to claim 6, characterized in that: A second transmission sleeve (236) fixedly connected to the transfer member (21) is rotatably mounted on the detection box (1), and a second transmission block (237) slidably matched with the first transmission block (235) is arranged inside the second transmission sleeve (236).

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