Scale calibration tool of vacuum suction scale

Abstract

The utility model provides a scale calibration tool of a vacuum material suction scale, and belongs to the technical field of material suction devices. Comprising a mounting frame, a material suction barrel and an auxiliary plate, a plurality of protruding blocks are fixedly arranged on the outer wall of the material suction barrel in the circumferential direction of the material suction barrel, sensors are arranged below the protruding blocks, the material suction barrel is connected to the mounting frame through the sensors, the sensors are in acting connection with a displayer, and the auxiliary plate is horizontally connected to the outer side wall of the discharging end of the material suction barrel and used for containing weights. A worker only needs to place the weight on the auxiliary plate, the measured weight value is displayed through the displayer, then the standard value of the weight is compared, verification work can be carried out, the worker does not need to carry the weight to carry out climbing work, and the effects of reducing labor intensity and improving operation safety are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of suction devices, in particular to a scale calibration tool for a vacuum suction scale. Background Art

[0002] The vacuum suction scale is a device that can absorb and store materials in a vacuum environment and is used to transport raw materials to the injection molding machine. When the injection molding machine is short of materials, it will send a signal to the vacuum suction scale, and then the vacuum suction scale will transport the raw materials to the injection molding machine. After a certain amount of raw materials are injected, the vacuum suction scale will automatically stop feeding.

[0003] The vacuum suction scale usually includes a suction barrel and a weighing device. The suction barrel is installed on the weighing device, and the weighing device is connected to a display. The outer wall of the suction barrel is provided with a feeding pipe for connecting to the material storage mechanism, and a vacuum tube for connecting to the vacuum pump. Starting the vacuum pump can evacuate the suction barrel to form a pressure difference between the inside and outside of the suction barrel, so that the raw materials in the material storage mechanism can be sucked into the suction barrel, and the weight of the raw materials can be displayed on the display. In the actual production process, in order to ensure the production quality of the product, the vacuum suction scale needs to inject a certain amount of raw materials into the injection molding machine each time. Therefore, the staff needs to calibrate the vacuum suction scale every day to ensure that the weighing value of the raw materials is accurate.

[0004] The traditional way to calibrate a scale is to have a worker carry multiple weights and climb to the top of the suction barrel when the barrel is empty, and compare the weight of the weights with the value on the display to verify the accuracy of the weighing device. However, the weights used for this calibration are heavy, and the worker needs to climb to work, which is not only labor-intensive, but also poses a safety hazard. Utility Model Content

[0005] In view of the above problems, the utility model provides a scale calibration tool for a vacuum suction scale.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] Provided is a calibration tool for a vacuum suction scale, comprising a mounting frame, a suction barrel and an auxiliary plate, wherein a plurality of protrusions are fixedly arranged on the outer wall of the suction barrel around its circumference, sensors are arranged under the plurality of protrusions, the suction barrel is connected to the mounting frame via the sensors, the plurality of sensors are operatively connected to displays, the auxiliary plate is horizontally connected to the outer wall of the discharge end of the suction barrel, and the auxiliary plate is used for placing weights.

[0008] Furthermore, a bracket is provided on the outside of the mounting frame, a weight frame for storing weights is provided on the bracket, a notch is provided on one side of the weight frame, and a guide plate is movably connected between the notch and the auxiliary plate.

[0009] Furthermore, one end of the guide plate is rotatably connected to the notch of the weight frame, and the other end of the guide plate is movably overlapped on the auxiliary plate. The weight frame is provided with a limiter for limiting the rotation of the guide plate.

[0010] Furthermore, the limiting member includes a limiting column and a spring. A first mounting groove for accommodating the limiting column is provided on an inner wall on one side of the weight frame perpendicular to the guide plate. A second mounting groove for communicating with the first mounting groove is provided on the guide plate. The spring is arranged in the first mounting groove, and two ends of the spring are respectively abutted against the limiting column and the inner bottom wall of the first mounting groove. A pull rod with an outer diameter smaller than that of the limiting column is fixedly provided at one end of the limiting column close to the inner bottom wall of the first mounting groove, and an end of the pull rod away from the limiting column movably passes through the side wall of the weight frame and is connected to a positioning block with an outer diameter larger than that of the pull rod.

[0011] Furthermore, an elastic block is arranged at the movable end of the guide plate, and a groove for inserting the elastic block is opened at the top of the auxiliary plate. When the guide plate is rotated and overlapped on the auxiliary plate, the elastic block is inserted into the groove.

[0012] Furthermore, a plurality of third installation grooves are provided on the guide plate at intervals along its own transport direction, and rollers are rotatably provided in each of the plurality of third installation grooves, and the axis of the rollers is parallel to the rotation axis of the guide plate.

[0013] Furthermore, a movable plate for pushing the weights in the frame is slidably arranged in the weight frame along the transport direction of the guide plate, and a driving member for driving the movable plate to move is arranged on the weight frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. Since the auxiliary plate is installed on the outer wall of the discharge end of the suction barrel, the staff only needs to place the weight on the auxiliary plate, display the measured weight value on the display, and then compare it with the standard value of the weight itself to perform the calibration work. There is no need to carry weights for high-altitude operations, which has the effect of reducing labor intensity and improving operation safety;

[0016] Second, one end of the guide plate is rotatably connected to the notch of the weight frame, and the other end of the guide plate is movably overlapped on the auxiliary plate. The weight frame and the auxiliary plate can be connected by rotating the guide plate, so that the staff can drag the weights through the guide plate, which has the effect of reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a calibration tool for a vacuum suction scale according to an embodiment of the present application.

[0018] Figure 2 This is a schematic diagram of the calibration work of a calibration tool for a vacuum suction scale according to an embodiment of the present application.

[0019] Figure 3This is a schematic diagram of the assembly of various components on a weight frame of a calibration tool for a vacuum suction scale according to an embodiment of the present application.

[0020] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A.

[0021] Among them, 1. mounting frame; 2. auxiliary plate; 21. groove; 3. sensor; 4. bracket; 5. weight frame; 51. first mounting groove; 6. guide plate; 61. second mounting groove; 62. third mounting groove; 7. limit member; 71. limit column; 72. spring; 73. positioning block; 8. elastic block; 9. roller; 10. moving plate; 20. driving member; 30. suction bucket; 40. weight. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The present application embodiment discloses a vacuum suction scale calibration tool, referring to Figure 1 , Figure 2 and Figure 3 , including a mounting frame 1, a suction barrel 30 and an auxiliary plate 2. A plurality of protrusions are integrally fixed on the outer wall of the suction barrel 30 around its circumference, and sensors 3 are installed under the plurality of protrusions. The suction barrel 30 is connected to the mounting frame 1 through the sensors 3, and the plurality of sensors 3 are functionally connected to a display (not shown in the figure). The auxiliary plate 2 is horizontally bolted to the outer wall of the discharge end of the suction barrel 30, and the auxiliary plate 2 is used to place a weight 40.

[0024] In the embodiment of the present application, the sensor 3 is specifically a weighing sensor, which can be used to detect the weight of the suction barrel 30 and display the specific weight value through the display. The display is connected to a controller. When the suction barrel 30 is in an unloaded state, the staff adjusts the controller to return the weight value on the display to zero. In this way, the weight value displayed subsequently can only be the load value on the suction barrel 30, which is more convenient for the staff to directly read the load weight. The controller can be a computer control system.

[0025] Since the auxiliary plate 2 is installed on the outer wall of the discharge end of the suction barrel 30, the staff only needs to place the weight 40 on the auxiliary plate 2, display the measured weight value on the display, and then compare it with the standard value of the weight 40 itself to perform the calibration work. The staff no longer needs to carry the weight 40 for high-altitude operations, which has the effect of reducing labor intensity and improving operation safety.

[0026] Furthermore, a bracket 4 is installed outside the mounting frame 1, and a weight frame 5 for accommodating the weight 40 is bolted to the bracket 4. A notch is opened on one side of the weight frame 5, and a guide plate 6 is movably connected between the notch and the auxiliary plate 2.

[0027] In the embodiment of the present application, the staff can store the weight 40 in the weight frame 5. When it is used, it is only necessary to connect the auxiliary plate 2 and the weight frame 5 through the guide plate 6, and then drag the weight 40 from the notch along the guide plate 6 to the auxiliary plate 2. Then, the guide plate 6 is folded up to start the calibration work, which has the effect of reducing labor intensity.

[0028] Specifically, one end of the guide plate 6 is rotatably connected to the notch of the weight frame 5 through a hinge, and the other end of the guide plate 6 is movably overlapped on the auxiliary plate 2. A limiter 7 for limiting the rotation of the guide plate 6 is installed on the weight frame 5.

[0029] In the embodiment of the present application, the guide plate 6 can be rotated to make the movable end of the guide plate 6 overlap the auxiliary plate 2. After the verification is completed, the weight 40 is dragged back into the weight frame 5 through the guide plate 6, and then the guide plate 6 is rotated to close the gap in the weight frame 5. Finally, the movement of the guide plate 6 is limited by the limit piece 7.

[0030] Reference Figure 4 The limiting member 7 includes a limiting column 71 and a spring 72. A first mounting groove 51 for accommodating the limiting column 71 is provided on the inner wall of one side of the weight frame 5 perpendicular to the guide plate 6. A second mounting groove 61 for communicating with the first mounting groove 51 is provided on the guide plate 6. The spring 72 is arranged in the first mounting groove 51, and the two ends of the spring 72 are respectively in contact with the limiting column 71 and the inner bottom wall of the first mounting groove 51. A pull rod with an outer diameter smaller than that of the limiting column 71 is integrally fixed to one end of the limiting column 71 close to the inner bottom wall of the first mounting groove 51, and the end of the pull rod away from the limiting column 71 movably passes through the side wall of the weight frame 5 and is integrally fixed with a positioning block 73 with an outer diameter larger than that of the pull rod.

[0031] In the embodiment of the present application, after the weight 40 is stored in the weight frame 5, the staff needs to pull the positioning block 73 outward to make the limiting column completely enter the first installation groove 51, then rotate the guide plate 6 to make the second installation groove 61 communicate with the first installation groove 51, and then release the positioning block 73. Under the elastic force of the spring 72, one end of the limiting column 71 is forced to be inserted into the second installation groove 61, and the other end is still in the first installation groove 51. In this way, the movement of the guide plate 6 can be limited.

[0032] In order to improve the installation stability between the guide plate 6 and the auxiliary plate 2, an elastic block 8 is adhered to the movable end of the guide plate 6, and a groove 21 for inserting the elastic block 8 is provided on the top of the auxiliary plate 2. When the guide plate 6 is rotated and overlapped on the auxiliary plate 2, the elastic block 8 is inserted into the groove 21. The elastic block 8 can be a rubber block.

[0033] In order to facilitate the staff to drag the weight 40 on the guide plate 6, a plurality of third installation grooves 62 are spaced apart along its own transportation direction, and rollers 9 are rotatably arranged in the plurality of third installation grooves 62, and the axis of the rollers 9 is parallel to the rotation axis of the guide plate 6.

[0034] Furthermore, a moving plate 10 for pushing the weights 40 in the frame is slidably arranged in the weight frame 5 along the transport direction of the guide plate 6 , and a driving member 20 for driving the moving plate 10 to move is installed on the weight frame 5 .

[0035] In the embodiment of the present application, the driving member 20 can be a cylinder or other linear driving device. The driving member 20 drives the weight 40 to move onto the auxiliary plate 2, which can further reduce the labor intensity of the staff.

[0036] The implementation principle of the calibration tool of a vacuum suction scale in the embodiment of the present application is as follows: the auxiliary plate 2 is installed on the outer wall of the discharge end of the suction barrel 30, so the staff only needs to place the weight 40 on the auxiliary plate 2, display the measured weight value on the display, and then compare it with the standard value of the weight 40 itself to perform the calibration work. The staff no longer needs to carry the weight 40 for high-altitude operations, which has the effect of reducing labor intensity and improving operation safety.

[0037] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A calibration tool for a vacuum suction scale, characterized in that: The invention comprises a mounting frame (1), a suction barrel (30) and an auxiliary plate (2); a plurality of protrusions are fixedly arranged on the outer wall of the suction barrel (30) around its circumference; sensors (3) are arranged below the plurality of protrusions; the suction barrel (30) is connected to the mounting frame (1) via the sensors (3); the plurality of sensors (3) are operatively connected to a display; the auxiliary plate (2) is horizontally connected to the outer wall of the discharge end of the suction barrel (30); and the auxiliary plate (2) is used to place a weight (40).

2. The calibration tool for a vacuum suction scale according to claim 1, characterized in that: A bracket (4) is provided on the outside of the mounting frame (1), and a weight frame (5) for storing a weight (40) is provided on the bracket (4). A notch is provided on one side of the weight frame (5), and a guide plate (6) is movably connected between the notch and the auxiliary plate (2).

3. The calibration tool for a vacuum suction scale according to claim 2, characterized in that: One end of the guide plate (6) is rotatably connected to the notch of the weight frame (5), and the other end of the guide plate (6) is movably overlapped on the auxiliary plate (2). A limiter (7) for limiting the rotation of the guide plate (6) is provided on the weight frame (5).

4. The calibration tool for a vacuum suction scale according to claim 3 is characterized in that: The limiting member (7) comprises a limiting column (71) and a spring (72); a first mounting groove (51) for accommodating the limiting column (71) is provided on an inner wall of one side of the weight frame (5) perpendicular to the guide plate (6); a second mounting groove (61) for communicating with the first mounting groove (51) is provided on the guide plate (6); the spring (72) is arranged in the first mounting groove (51), and two ends of the spring (72) are respectively abutted against the limiting column (71) and the inner bottom wall of the first mounting groove (51); a pull rod having an outer diameter smaller than that of the limiting column (71) is fixedly provided at one end of the limiting column (71) close to the inner bottom wall of the first mounting groove (51); and an end of the pull rod away from the limiting column (71) movably passes through the side wall of the weight frame (5) and is connected to a positioning block (73) having an outer diameter larger than that of the pull rod.

5. The calibration tool for a vacuum suction scale according to claim 3 is characterized in that: The movable end of the guide plate (6) is provided with an elastic block (8), and the top of the auxiliary plate (2) is provided with a groove (21) for the elastic block (8) to be inserted into. When the guide plate (6) is rotated and overlapped on the auxiliary plate (2), the elastic block (8) is inserted into the groove (21).

6. The calibration tool for a vacuum suction scale according to claim 3 is characterized in that: The guide plate (6) is provided with a plurality of third installation grooves (62) spaced apart along its own transport direction, and rollers (9) are rotatably arranged in each of the plurality of third installation grooves (62), wherein the axis of the rollers (9) is parallel to the rotation axis of the guide plate (6).

7. The calibration tool for a vacuum suction scale according to claim 3 is characterized in that: A movable plate (10) for pushing the weights (40) in the frame is slidably arranged in the weight frame (5) along the transport direction of the guide plate (6), and a driving member (20) for driving the movable plate (10) to move is arranged on the weight frame (5).

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