Automatic hanging weight calibration structure of electronic belt scale

Abstract

The utility model discloses an automatic weight hanging calibration structure of an electronic belt scale, which comprises a base frame, a scale frame and a bracket are vertically arranged on the base frame in a sliding manner, an installation part is arranged on the scale frame, an installation cavity is formed in the installation part, a weight is arranged in the installation cavity through a sling, a limiting ring part is arranged outside the installation part, and a containing cavity is formed in the bracket. The bracket vertically slides to enable the accommodating cavity to support the bottom of the weight, and a sealing ring arranged on the bracket abuts against the limiting ring part to block the mounting cavity and the accommodating cavity. According to the automatic weight hanging calibration structure of the electronic belt scale provided by the utility model, the bracket vertically slides to the highest position to enable the accommodating cavity to support the bottom of the weight, and the sealing ring abuts against the limiting ring part to block and protect the mounting cavity and the accommodating cavity, so that the standard weight is prevented from being directly exposed in external air, and the safety of the standard weight is improved. The problem of weight change caused by the fact that the standard weight is easily oxidized or eroded by water vapor is avoided, and the accuracy of the calibration work of the scale frame is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic belt scale technology, and more specifically to an automatic weight calibration structure for electronic belt scales. Background Technology

[0002] A belt scale is a weighing instrument that automatically weighs loose materials placed on a belt and conveyed by the belt. It obtains the instantaneous weight of the material on the belt and the belt's transmission speed through sensors, and then integrates these two values ​​to obtain the cumulative amount of material.

[0003] According to announcement number CN 210375352 U, announcement date: April 21, 2020, an automatic calibration cantilever belt scale and feeding device are disclosed. This automatic calibration cantilever belt scale includes a frame and a belt scale body mounted on the frame. Its key feature is the inclusion of an automatic calibration mechanism, which comprises a cylinder, a standard weight, and a support platform. The cylinder is fixedly mounted on the belt scale body, and the support platform is mounted on the frame. The cylinder is connected to the standard weight via a rope, and the cylinder drives the standard weight to switch between a suspended position and a supported position on the support platform. This equipment achieves fully automated calibration, with high speed and efficiency. The horizontal arrangement of the cylinder reduces the overall design height of the equipment, resulting in a simplified structure, reasonable layout, and low manufacturing cost.

[0004] In the prior art, including the aforementioned patent, a standard weight is connected by a cylinder and a rope. The cylinder drives the standard weight to switch between a suspended position and a supported position to achieve automated calibration. However, in actual work, the standard weight is still directly exposed to the outside air, which makes it susceptible to oxidation or moisture corrosion, resulting in weight changes and calibration errors. Utility Model Content

[0005] The purpose of this invention is to provide an automatic weight calibration structure for electronic belt scales to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic weight calibration structure for an electronic belt scale, comprising a base frame on which a scale frame and a support are vertically slidably mounted. The scale frame is provided with a mounting part, which has a mounting cavity. A weight is mounted in the mounting cavity via a sling. A limiting ring is provided on the outside of the mounting part. A receiving cavity is provided on the support. The support slides vertically so that the receiving cavity supports the bottom of the weight. A sealing ring provided on the support abuts against the limiting ring to seal the mounting cavity and the receiving cavity.

[0007] Preferably, an annular groove is provided on the outer side of the mounting part, the support slides vertically so that the receiving cavity no longer supports the bottom of the weight, and the sealing ring moves into the annular groove to separate from the mounting part.

[0008] Preferably, the mounting cavity is provided with a support roller section, and the sling is supported by the support roller section so that the weight is located in the middle of the mounting cavity.

[0009] Preferably, the limiting ring is inclined, and the outer ring side of the limiting ring is the lower end, and the inner ring side of the limiting ring is provided with an abutting ring, and the sealing ring is provided with an abutting groove that cooperates with the abutting ring.

[0010] Preferably, a flexible ring is provided in the receiving cavity, and an end ring is provided at the end of the mounting part. When the sealing ring of the support abuts against the limiting ring, the flexible ring is located in the annular groove. The support is driven to slide vertically away from the mounting part so that the flexible ring moves and scrapes against the end ring.

[0011] Preferably, the outer side of the end ring is provided with a plurality of annular lower grooves in a linear array.

[0012] Preferably, the bottom of the receiving cavity is provided with a support pad for supporting the weight.

[0013] Preferably, the system also includes a drive cylinder, a mounting portion is provided on the base frame, a vertical sliding column is provided on the support, the vertical sliding column is vertically slidably mounted on the mounting portion, and the drive cylinder is mounted on the base frame to drive the vertical sliding column to slide vertically.

[0014] Preferably, the system also includes a slide, a load cell, and a fixing element. The slide is vertically slidably arranged on the base frame, and the scale frame is threadedly locked to the slide by the fixing element. The load cell is located between the slide and the base frame.

[0015] Preferably, the slide block is symmetrically provided with sliding parts, and the base frame is provided with sliding grooves, with the sliding parts slidably disposed in the sliding grooves.

[0016] In the above technical solution, the automatic weight-hanging calibration structure for electronic belt scales provided by this utility model has the following beneficial effects: by using the support to slide vertically to the highest position so that the receiving cavity supports the bottom of the weight, the scale frame is not pulled by the weight, and the sealing ring abuts against the limiting ring to seal and protect the mounting cavity and the receiving cavity, thereby avoiding the standard weight being directly exposed to the outside air, avoiding the problem of the standard weight being easily oxidized or corroded by moisture and causing weight changes, and improving the accuracy of the scale frame calibration work. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the base frame provided in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the weighing frame and slide provided in an embodiment of the present utility model;

[0022] Figure 5 A schematic diagram of the structure of the support, sealing ring, and flexible ring provided in the embodiments of this utility model;

[0023] Figure 6 Exploded view of the scale frame, support, sealing ring, and flexible ring provided in the embodiments of this utility model

[0024] Figure 7 Provided for the embodiments of this utility model Figure 2 A magnified view of a portion of point A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base frame; 11. Mounting part; 12. Sliding groove; 2. Weighing frame; 21. Mounting part; 22. Mounting cavity; 221. Support roller part; 23. Limiting ring part; 231. Abutting ring part; 24. Annular groove; 25. End ring; 251. Lower groove; 26. Mounting hole; 3. Support; 31. Receiving cavity; 32. Vertical sliding column; 41. Weight; 42. Sling; 5. Sealing ring; 51. Abutting groove; 6. Flexible ring; 7. Support pad; 91. Slide seat; 911. Sliding part; 92. Weighing sensor; 93. Fixing component; 94. Drive cylinder. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0028] like Figure 1-7As shown, an automatic weight calibration structure for an electronic belt scale includes a base frame 1 on which a scale frame 2 and a support 3 are vertically slidably mounted. The scale frame 2 is provided with a mounting part 21, and a mounting cavity 22 is opened in the mounting part 21. A weight 41 is mounted in the mounting cavity 22 by a sling 42. A limiting ring part 23 is provided on the outside of the mounting part 21. A receiving cavity 31 is opened in the support 3. The support 3 slides vertically so that the receiving cavity 31 supports the bottom of the weight 41, and a sealing ring 5 provided on the support 3 abuts against the limiting ring part 23 to seal the mounting cavity 22 and the receiving cavity 31.

[0029] Specifically, such as Figure 2 As shown, the weight 41 is placed in the mounting cavity 22 by the sling 42, and the weighing frame 2 is provided with mounting holes 26 for mounting the support roller and the bracket. When the weighing frame 2 is in normal use, the support 3 slides vertically to the highest position so that the receiving cavity 31 supports the bottom of the weight 41. At this time, the weighing frame 2 is not pulled by the weight 41, and the sealing ring 5 abuts against the limiting ring 23 to seal and protect the mounting cavity 22 and the receiving cavity 31. This avoids the standard weight 41 from being directly exposed to the outside air, avoids the problem of the standard weight 41 being easily oxidized or corroded by moisture, and improves the accuracy of the weighing frame 2 calibration.

[0030] In the above technical solution, the support 3 is vertically slid to the highest position so that the receiving cavity 31 supports the bottom of the weight 41. At this time, the weighing frame 2 is not pulled by the weight 41, and the sealing ring 5 abuts against the limiting ring 23 to seal and protect the mounting cavity 22 and the receiving cavity 31. This avoids the standard weight 41 from being directly exposed to the outside air, avoids the problem of the standard weight 41 being easily oxidized or corroded by water vapor, and improves the accuracy of the calibration work of the weighing frame 2.

[0031] As a further embodiment of this utility model, an annular groove 24 is provided on the outer side of the mounting part 21, the support 3 slides vertically so that the receiving cavity 31 no longer supports the bottom of the weight 41, and the sealing ring 5 moves into the annular groove 24 to separate from the mounting part 21.

[0032] Specifically, such as Figure 2 As shown, when the weighing frame 2 needs to be calibrated, and the weight 41 needs to be suspended to apply downward pressure to the weighing frame 2, the support 3 can slide vertically down to the low position, the receiving cavity 31 no longer supports the weight 41, and the sealing ring 5 moves into the annular groove 24 to separate from the mounting part 21, thereby avoiding the problem of weighing frame 2 calibration error caused by the sealing ring 5 abutting against the elasticity of the mounting part 21 during the calibration process, and further improving the calibration accuracy.

[0033] As a further embodiment of this utility model, a support roller portion 221 is provided in the mounting cavity 22, and the sling 42 is supported by the support roller portion 221 so that the weight 41 is located in the middle of the mounting cavity 22.

[0034] Specifically, such as Figure 2 As shown, the sling 42 is supported by the support roller 221 so that the weight 41 is located in the middle of the mounting cavity 22, thereby making the weight 41 located in the middle of the weighing frame 2 to improve the balance of the weighing frame 2.

[0035] As a further embodiment provided by this utility model, the limiting ring portion 23 is inclined, and the outer ring side of the limiting ring portion 23 is the low end. The inner ring side of the limiting ring portion 23 is provided with an abutting ring portion 231, and the sealing ring 5 is provided with an abutting groove 51 that cooperates with the abutting ring portion 231.

[0036] Specifically, such as Figure 7 As shown, the limiting ring 23 is inclined to improve the sealing stability between the sealing ring 5 and the limiting ring 23, further improving the protection of the weight 41 in the receiving cavity 31 and the mounting cavity 22. Secondly, the abutting groove 51 of the sealing ring 5 can cooperate with the abutting ring 231 to further improve the protection of the weight 41.

[0037] As a further embodiment of this utility model, a flexible ring 6 is provided in the receiving cavity 31, and an end ring 25 is provided at the end of the mounting part 21. When the sealing ring 5 of the support 3 abuts against the limiting ring part 23, the flexible ring 6 is located in the annular groove 24. The support 3 is driven to slide vertically away from the mounting part 21 so that the flexible ring 6 moves and scrapes against the end ring 25.

[0038] Specifically, such as Figure 2 As shown, when the weighing frame 2 needs to be calibrated so that the support 3 slides vertically down to the low position, the flexible ring 6 is driven to slide vertically to scrape and squeeze the end ring 25, so that the weighing frame 2 moves vertically downward in advance due to friction, thereby avoiding the problem of the weighing frame 2 sliding slowly due to dust or material jamming, thereby further improving the calibration accuracy of the weighing frame 2.

[0039] As a further embodiment provided by this utility model, the outer side of the end ring 25 is provided with a plurality of annular lower grooves 251 in a linear array.

[0040] Specifically, such as Figure 7 As shown, the outer side of the end ring 25 has a number of annular grooves 251 arranged in a linear array. When the weighing frame 2 needs to be calibrated so that the support 3 slides vertically down to the low position, the flexible ring 6 is driven to slide vertically to scrape and squeeze the end ring 25. The flexible ring 6 scrapes, squeezes and falls off several grooves 251 in sequence, thereby causing vertical vibration on the weighing frame 2. This further avoids the problem of the weighing frame 2 sliding slowly due to dust or material jamming, and improves the calibration accuracy of the weighing frame 2.

[0041] As a further embodiment of this utility model, the bottom of the receiving cavity 31 is provided with a support pad 7 for supporting the weight 41.

[0042] Specifically, the supporting pad 7 is used to support the weight 41 to further improve the protection of the weight 41 and avoid the weight 41 from being affected by hard impacts.

[0043] As a further embodiment of this utility model, it also includes a drive cylinder 94, a mounting part 11 is provided on the base frame 1, a vertical sliding column 32 is provided on the support 3, the vertical sliding column 32 is vertically slidably disposed on the mounting part 11, and the drive cylinder 94 is disposed on the base frame 1 to drive the vertical sliding column 32 to slide vertically.

[0044] Specifically, such as Figure 2 As shown, the vertical sliding column 32 of the support 3 is vertically slidably disposed on the mounting part 11, thereby improving the vertical sliding stability of the support 3. When the support 3 slides vertically to its lowest position, the support 3 abuts against the mounting part 11 to avoid the vibration of the support 3 interfering with the weighing frame 2 during the calibration process.

[0045] As a further embodiment of this utility model, it also includes a slide 91, a weighing sensor 92, and a fixing member 93. The slide 91 is vertically slidably arranged on the base frame 1, and the weighing frame 2 is threadedly locked to the slide 91 by the fixing member 93. The weighing sensor 92 is located between the slide 91 and the base frame 1.

[0046] Specifically, such as Figure 4 As shown, the weighing frame 2 is first fixed to the slide 91 by the fastener 93. The weighing sensor 92 is located between the slide 91 and the base frame 1. When the weighing frame 2 is pressed, the slide 91 slides vertically to apply pressure to the weighing sensor 92, thereby realizing the weighing of materials. The presence of the slide 91 is used to further improve the vertical sliding performance of the weighing frame 2.

[0047] As a further embodiment provided by this utility model, a sliding part 911 is symmetrically arranged on the slide block 91, and a sliding groove 12 is opened on the base frame 1, with the sliding part 911 slidably disposed in the sliding groove 12.

[0048] Specifically, the slide block 91 is symmetrically provided with sliding parts 911, and the base frame 1 is provided with sliding grooves 12. The sliding parts 911 are slidably disposed in the sliding grooves 12 to improve the vertical sliding stability of the slide block 91 and reduce the horizontal offset of the slide block 91.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electronic belt scale automatic code hanging calibration structure, characterized in that, Including base frame (1), vertical sliding is provided with scale frame (2) and support seat (3) on it, the scale frame (2) is provided with installation part (21), the installation cavity (22) is set in the installation part (21), the weight (41) is set in the installation cavity (22) through the sling (42), the outside of the installation part (21) is provided with the limit ring part (23), the support seat (3) is provided with the containing cavity (31), the support seat (3) vertically slides to make the containing cavity (31) support the bottom of the weight (41), and the sealing ring (5) provided on the support seat (3) is in contact with the limit ring part (23) to block the installation cavity (22) and the containing cavity (31).

2. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, The outside of the installation part (21) is provided with annular groove (24), the support seat (3) vertically slides to make the containing cavity (31) no longer support the bottom of the weight (41), and the sealing ring (5) moves into the annular groove (24) to separate from the installation part (21).

3. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, The installation cavity (22) is provided with supporting roller part (221), and the sling (42) is supported by the supporting roller part (221) to make the weight (41) located in the middle of the installation cavity (22).

4. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, The limit ring part (23) is inclined, and the outer ring side of the limit ring part (23) is low, and the inner ring side of the limit ring part (23) is provided with a contact ring part (231), and the sealing ring (5) is provided with a contact groove (51) matched with the contact ring part (231).

5. The automatic load calibration structure of an electronic belt scale according to claim 2, characterized in that, The containing cavity (31) is provided with a flexible ring (6), and the end of the installation part (21) is provided with an end ring (25), when the sealing ring (5) of the support seat (3) is in contact with the limit ring part (23), the flexible ring (6) is located in the annular groove (24), and the support seat (3) is driven to vertically slide away from the installation part (21) to make the flexible ring (6) move and rub the end ring (25).

6. The automatic load calibration structure of an electronic belt scale according to claim 5, characterized in that, The outside of the end ring (25) is linearly arrayed with a plurality of annular recesses (251).

7. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, The bottom of the containing cavity (31) is provided with a supporting pad (7) for supporting the weight (41).

8. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, It also includes a drive cylinder (94), the base frame (1) is provided with a mounting part (11), the support seat (3) is provided with a vertical sliding column (32), the vertical sliding column (32) is vertically slidably arranged on the mounting part (11), and the drive cylinder (94) is arranged on the base frame (1) to drive the vertical sliding column (32) to vertically slide.

9. The automatic load calibration structure of an electronic belt scale according to claim 1, characterized in that, It also includes a sliding seat (91), a weighing sensor (92) and a fixing member (93), the sliding seat (91) is vertically slidably arranged on the base frame (1), the scale frame (2) is screwed on the sliding seat (91) through the fixing member (93), and the weighing sensor (92) is located between the sliding seat (91) and the base frame (1).

10. The automatic load calibration structure of an electronic belt scale according to claim 9, characterized in that, The sliding seat (91) is symmetrically provided with a sliding part (911), and the base frame (1) is provided with a sliding groove (12), and the sliding part (911) is slidably arranged in the sliding groove (12).

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