Weighing machine

Abstract

The utility model discloses a weighing machine, which relates to the technical field of weighing, and comprises a control host, a weighing assembly is arranged on the front surface of the control host, a positioning assembly is arranged at the top of the weighing assembly, an extension assembly is arranged at one end of the positioning assembly, a conveyor is arranged on one side of the weighing assembly, and the conveyor is arranged on the other side of the control host. A second conveyor is arranged on the other side of the weighing assembly, supporting frames are arranged at the bottoms of the conveyor and the second conveyor, and the supporting frames correspond to the bottoms of the weighing assembly. According to the weighing machine provided by the utility model, the positioning of a product conveyed to the weighing platform is realized through the arranged positioning assembly, the second mounting frames and the positioning rods are driven to move on the outer wall of the lead screw through the arranged moving blocks, and the two second mounting frames are arranged in a staggered manner, so that the clamping and positioning of the product are realized in the moving process; and the product is moved to the middle of the weighing platform, so that the accuracy of the weighing data is prevented from being influenced by the position deviation of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, in particular to a weighing machine. Background Art

[0002] Checkweighers, also known as weight sorters, are automatic checkweighing equipment widely used in production lines in the pharmaceutical, food, chemical and other industries. They can detect overweight or underweight unqualified products in the production line in real time. With the development of the manufacturing industry, most food products are sold by weight. During the production process, the weight of the product needs to be tested to control the weight of the product within the allowable error range.

[0003] However, the existing weighing machines do not have an ideal positioning effect on products. When the products are transmitted to the weighing machine, they are easily offset due to inertia, thereby affecting the accuracy of the weighing data. Therefore, it is necessary to provide a weighing machine to solve the problem. Utility Model Content

[0004] The main purpose of the utility model is to provide a weighing machine, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A weighing machine comprises a control host, a weighing assembly is arranged on the front of the control host, a positioning assembly is arranged on the top of the weighing assembly, an extension assembly is arranged at one end of the positioning assembly, a conveyor is arranged on one side of the weighing assembly, and a second conveyor is arranged on the other side of the weighing assembly, a support frame is arranged at the bottom of the conveyor and the second conveyor, and the support frame is arranged corresponding to the bottom of the weighing assembly;

[0007] The weighing assembly comprises a load-bearing frame, a support rod is arranged on the top of the load-bearing frame, a weighing platform is arranged on the top of the support rod, a first installation frame is arranged in the middle of the bottom of the weighing platform, and a weighing device is arranged inside the first installation frame;

[0008] The positioning assembly includes a mounting plate, a driving motor is arranged on the side of the mounting plate, a lead screw is arranged on the side of the driving motor, a moving block is arranged outside the lead screw, a second mounting frame is arranged on the side of the moving block, a rotating shaft is arranged in the middle of the second mounting frame, and a positioning rod is arranged outside the rotating shaft;

[0009] The extension assembly comprises a cylinder, a connecting plate is arranged on the outer wall of the cylinder, an ejection plate is arranged at one end of the cylinder, and an L-shaped extension rod is arranged on the side of the ejection plate.

[0010] Preferably, the bottom of the bearing frame corresponds to the bottom of the supporting frame, and the top of the bearing frame is arranged adjacent to the second conveyor and the bottom of the conveyor, the bearing frame is connected to the support rod by bolts, and there are four groups of support rods, which are symmetrically distributed on the top of the bearing frame, and the top of the support rod is connected to the weighing platform by bolts.

[0011] Preferably, the two sides of the top of the weighing platform are respectively arranged corresponding to the top of the conveyor and the second conveyor, and the weighing platform, the conveyor and the second conveyor are arranged on the same horizontal line, the weighing platform is connected to the first mounting frame by bolts, and the first mounting frame is located in the middle of the top of the weighing platform, the bottom inner wall of the first mounting frame is connected to the weighing device by bolts, the top of the weighing device is in contact with the bottom of the weighing platform, and the weighing device is electrically connected to the control host.

[0012] Preferably, the bottom of the mounting plate is connected to the supporting frame by bolts, and there are two mounting plates, which are symmetrically distributed on both sides of the top of the supporting frame. The middle of the mounting plate is connected to the weighing platform by bolts, and a through groove is provided on one side of the mounting plate close to the top of the weighing platform, and the through groove is arranged corresponding to the mounting plate.

[0013] Preferably, the mounting plate is connected to the driving motor by bolts, the output end of the driving motor is connected to the lead screw transmission, both ends of the lead screw are installed inside the through groove on the side of the mounting plate by bearings, and the end of the lead screw close to the driving motor passes through the mounting plate, a moving block is sleeved on the outer wall of the lead screw, and the outer wall of the moving block is slidably connected to the inner wall of the through groove, and there are two moving blocks, which are staggered at the two ends of the two lead screws.

[0014] Preferably, the side of the moving block away from the mounting plate is connected to the second mounting frame by bolts, and a servo motor is installed on the side of the second mounting frame by bolts, and the output end of the servo motor is transmission-connected to the rotating shaft, and the rotating shaft is installed inside the second mounting frame through a bearing, and a protrusion is fixedly connected to the outer wall of the rotating shaft, and the rotating shaft sleeve is arranged inside the positioning rod, and a groove is provided at one end of the positioning rod close to the rotating shaft, and the rotating shaft and the protrusion are both clamped in the inside of the groove.

[0015] Preferably, the side of the connecting plate is connected to the side outer wall of the positioning rod by bolts, and there are two connecting plates, which are symmetrically distributed on the sides of the positioning rod, the connecting plate is connected to the cylinder by bolts, and the cylinder and the positioning rod are arranged adjacent to each other, a slide groove is opened in the middle of the positioning rod, and the L-shaped extension rod is slidably connected to the inside of the slide groove, there are two L-shaped extension rods, which are staggered above the weighing platform, the end of the cylinder away from the positioning rod is connected to the ejection plate by bolts, and the side of the ejection plate is connected to the L-shaped extension rod by bolts.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The positioning assembly is used to position the product transferred to the weighing platform. The moving block is used to drive the second mounting frame and the positioning rod to move on the outer wall of the lead screw. The two second mounting frames are staggered to achieve the clamping and positioning of the product during the movement, so that the product is moved to the middle of the weighing platform to prevent the product from being offset and affecting the accuracy of the weighing data.

[0018] 2. The positioning rod is limited by the rotating shaft and the convex block, and the rotating shaft is driven by the servo motor to drive the positioning rod to rotate, so as to facilitate the adjustment of the position of the positioning rod, facilitate the loading and unloading of the symmetrical weighing platform, and improve the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first-view stereogram of the entire device of the utility model;

[0020] Figure 2 It is a second perspective stereogram of the entire device of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the weighing assembly of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the positioning assembly of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the extension component of the utility model.

[0024] In the figure: 1. control host; 2. conveyor; 3. second conveyor; 4. support frame; 5. weighing assembly; 6. load-bearing frame; 7. support rod; 8. weighing platform; 9. first mounting frame; 10. weighing device; 11. positioning assembly; 12. mounting plate; 13. through slot; 14. drive motor; 15. lead screw; 16. moving block; 17. second mounting frame; 18. servo motor; 19. rotating shaft; 20. protrusion; 21. groove; 22. positioning rod; 23. extension assembly; 24. slide slot; 25. L-shaped extension rod; 26. cylinder; 27. connecting plate; 28. ejector plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1-Figure 5As shown, the weighing machine comprises a control host 1, a weighing component 5 is arranged on the front of the control host 1, and a positioning component 11 is arranged on the top of the weighing component 5, an extension component 23 is arranged at one end of the positioning component 11, a conveyor 2 is arranged on one side of the weighing component 5, and a second conveyor 3 is arranged on the other side of the weighing component 5, and a support frame 4 is arranged at the bottom of the conveyor 2 and the second conveyor 3, and the support frame 4 is arranged corresponding to the bottom of the weighing component 5;

[0027] See also Figure 1 , Figure 2 , Figure 3 As shown, the weighing assembly 5 includes a load-bearing frame 6, a support rod 7 is arranged on the top of the load-bearing frame 6, a weighing platform 8 is arranged on the top of the support rod 7, and a first installation frame 9 is arranged in the middle of the bottom of the weighing platform 8, and a weighing device 10 is arranged inside the first installation frame 9, the bottom of the load-bearing frame 6 corresponds to the bottom of the support frame 4, and the top of the load-bearing frame 6 is arranged adjacent to the bottom of the second conveyor 3 and the conveyor 2, the load-bearing frame 6 is connected to the support rod 7 by bolts, and the support rod 7 has four groups, which are symmetrically distributed on the top of the load-bearing frame 6, respectively, to support The top of the rod 7 is connected to the weighing platform 8 by bolts, and the two sides of the top of the weighing platform 8 are respectively arranged corresponding to the tops of the conveyor 2 and the second conveyor 3, and the weighing platform 8, the conveyor 2 and the second conveyor 3 are arranged on the same horizontal line, the weighing platform 8 is connected to the first installation frame 9 by bolts, and the first installation frame 9 is located in the middle of the top of the weighing platform 8, and the bottom inner wall of the first installation frame 9 is connected to the weighing device 10 by bolts, the top of the weighing device 10 is in contact with the bottom of the weighing platform 8, and the weighing device 10 is electrically connected to the control host 1;

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the positioning assembly 11 includes a mounting plate 12, a driving motor 14 is arranged on the side of the mounting plate 12, a lead screw 15 is arranged on the side of the driving motor 14, a moving block 16 is arranged outside the lead screw 15, a second mounting frame 17 is arranged on the side of the moving block 16, and a rotating shaft 19 is arranged in the middle of the second mounting frame 17, and a positioning rod 22 is arranged outside the rotating shaft 19. The bottom of the mounting plate 12 is connected to the carrier frame 6 by bolts, and there are two mounting plates 12, which are symmetrically distributed on both sides of the top of the carrier frame 6. The mounting plate 1 2 is connected to the weighing platform 8 by bolts, a through slot 13 is opened on the top side of the mounting plate 12 close to the weighing platform 8, and the through slot 13 is arranged corresponding to the mounting plate 12, the mounting plate 12 is connected to the driving motor 14 by bolts, the output end of the driving motor 14 is connected to the lead screw 15 by transmission, the two ends of the lead screw 15 are installed in the through slot 13 on the side of the mounting plate 12 through bearings, and the end of the lead screw 15 close to the driving motor 14 passes through the mounting plate 12, and a moving block 16 is sleeved on the outer wall of the lead screw 15, and the outer wall of the moving block 16 is connected to the through slot 13. The inner wall of the groove 13 is slidably connected, there are two moving blocks 16, which are staggered and distributed at the two ends of the two lead screws 15. The side of the moving block 16 away from the mounting plate 12 is connected to the second mounting frame 17 by bolts. A servo motor 18 is installed on the side of the second mounting frame 17 by bolts. The output end of the servo motor 18 is transmission-connected to the rotating shaft 19. The rotating shaft 19 is installed inside the second mounting frame 17 through a bearing. The outer wall of the rotating shaft 19 is fixedly connected with a protrusion 20, and the rotating shaft 19 is sleeved inside the positioning rod 22. The positioning rod 22 A groove 21 is provided at one end close to the rotating shaft 19, and the rotating shaft 19 and the protrusion 20 are both clamped in the groove 21. The positioning assembly 11 is provided to realize the positioning of the product transmitted to the weighing platform 8. The second mounting frame 17 and the positioning rod 22 are driven to move on the outer wall of the lead screw 15 by the moving block 16, and the two second mounting frames 17 are staggered, so as to realize the clamping and positioning of the product during the movement, so that the product is moved to the middle of the weighing platform 8, so as to prevent the product position from being offset and affecting the accuracy of the weighing data;

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the extension assembly 23 includes a cylinder 26, a connecting plate 27 is provided on the outer wall of the cylinder 26, and an ejection plate 28 is provided at one end of the cylinder 26, and an L-shaped extension rod 25 is provided on the side of the ejection plate 28, and the side of the connecting plate 27 is connected to the side outer wall of the positioning rod 22 by bolts, and there are two connecting plates 27, which are symmetrically distributed on the sides of the positioning rod 22, and the connecting plate 27 is connected to the cylinder 26 by bolts, and the cylinder 26 is adjacent to the positioning rod 22, and a slide groove 24 is provided in the middle of the positioning rod 22, and the L-shaped extension rod 25 is slidably connected There are two L-shaped extension rods 25 inside the slide 24, which are staggered above the weighing platform 8. The end of the cylinder 26 away from the positioning rod 22 is connected to the ejector plate 28 by bolts, and the side of the ejector plate 28 is connected to the L-shaped extension rod 25 by bolts. The positioning rod 22 is limited by the set rotating shaft 19 and the protrusion 20. The rotating shaft 19 is driven by the set servo motor 18 to drive the positioning rod 22 to rotate, thereby facilitating the adjustment of the position of the positioning rod 22, facilitating the loading and unloading of the weighing platform 8, and improving the convenience of using the device.

[0030] It should be noted that the utility model is a weighing machine. When in use, the two positioning rods 22 and the L-shaped extension rod 25 are in a vertical state with the weighing platform 8, which is convenient for loading and unloading of products. The products to be weighed are transmitted through the conveyor 2, and the weighing platform 8 and the conveyor 2 are kept horizontal, so that they are flattened and transmitted to the top of the weighing platform 8, and then the servo motor 18 is operated to make the rotating shaft 19 drive the positioning rod 22 and the L-shaped extension rod 25 to rotate, so that the positioning rod 22 and the top of the weighing platform 8, the positioning rod 22 and the weighing platform 8 remain parallel, and then the through slot 13 is operated to make the moving block 16 drive the second installation frame 17, the positioning rod 22 and the L-shaped extension rod 25 to move on the outer wall of the screw 15, and the two groups of positioning rods 22 are simultaneously above the weighing platform 8. The step makes a reverse movement, thereby realizing the positioning of the product above the weighing platform 8, and then the cylinder 26 is operated to drive the L-shaped extension rod 25 to retract, so that the product is kept in the middle of the weighing platform 8, and the weight of the product is weighed by the weighing device 10 arranged at the bottom of the weighing platform 8, and the weighing device 10 is electrically connected to the control host 1, and the weighing data is recorded and displayed by the control host 1. After the weighing is completed, the positioning rod 22 close to the side of the second conveyor 3 is raised by rotating the rotating shaft 19, and the positioning rod 22 close to the side of the conveyor 2 is continuously moved on the second mounting frame 17 by the moving block 16, so that the positioning rod 22 can push the product on the weighing platform 8, and push the product to the second conveyor 3 to complete the weighing.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A weighing machine, comprising a control host (1), characterized in that: A weighing component (5) is arranged on the front of the control host (1), and a positioning component (11) is arranged on the top of the weighing component (5), an extension component (23) is arranged at one end of the positioning component (11), a conveyor (2) is arranged on one side of the weighing component (5), and a second conveyor (3) is arranged on the other side of the weighing component (5), and a support frame (4) is arranged at the bottom of the conveyor (2) and the second conveyor (3), and the support frame (4) is arranged corresponding to the bottom of the weighing component (5); The weighing assembly (5) comprises a load-bearing frame (6), a support rod (7) is arranged on the top of the load-bearing frame (6), a weighing platform (8) is arranged on the top of the support rod (7), and a first installation frame (9) is arranged in the middle of the bottom of the weighing platform (8), and a weighing device (10) is arranged inside the first installation frame (9); The positioning assembly (11) comprises a mounting plate (12), a driving motor (14) is arranged on the side of the mounting plate (12), a lead screw (15) is arranged on the side of the driving motor (14), a moving block (16) is arranged outside the lead screw (15), a second mounting frame (17) is arranged on the side of the moving block (16), a rotating shaft (19) is arranged in the middle of the second mounting frame (17), and a positioning rod (22) is arranged outside the rotating shaft (19); The extension assembly (23) comprises a cylinder (26), a connecting plate (27) is arranged on the outer wall of the cylinder (26), and an ejection plate (28) is arranged at one end of the cylinder (26), and an L-shaped extension rod (25) is arranged on the side of the ejection plate (28).

2. The weighing machine according to claim 1, characterized in that: The bottom of the carrier frame (6) corresponds to the bottom of the support frame (4), and the top of the carrier frame (6) is arranged adjacent to the bottom of the second conveyor (3) and the conveyor (2). The carrier frame (6) is connected to the support rod (7) by bolts, and there are four groups of support rods (7), which are symmetrically distributed on the top of the carrier frame (6). The top of the support rod (7) is connected to the weighing platform (8) by bolts.

3. The weighing machine according to claim 2, characterized in that: The two sides of the top of the weighing platform (8) are respectively arranged corresponding to the top of the conveyor (2) and the second conveyor (3), and the weighing platform (8), the conveyor (2) and the second conveyor (3) are arranged on the same horizontal line. The weighing platform (8) is connected to the first installation frame (9) by bolts, and the first installation frame (9) is located in the middle of the top of the weighing platform (8). The bottom inner wall of the first installation frame (9) is connected to the weighing device (10) by bolts, the top of the weighing device (10) is in contact with the bottom of the weighing platform (8), and the weighing device (10) is electrically connected to the control host (1).

4. The weighing machine according to claim 1, characterized in that: The bottom of the mounting plate (12) is connected to the carrier frame (6) by bolts, and there are two mounting plates (12), which are symmetrically distributed on both sides of the top of the carrier frame (6). The middle of the mounting plate (12) is connected to the weighing platform (8) by bolts. A through groove (13) is provided on one side of the mounting plate (12) close to the top of the weighing platform (8), and the through groove (13) is arranged corresponding to the mounting plate (12).

5. The weighing machine according to claim 4, characterized in that: The mounting plate (12) is connected to the driving motor (14) by bolts, the output end of the driving motor (14) is transmission-connected to the lead screw (15), both ends of the lead screw (15) are mounted inside the through groove (13) on the side of the mounting plate (12) by bearings, and the end of the lead screw (15) close to the driving motor (14) passes through the mounting plate (12), a moving block (16) is sleeved on the outer wall of the lead screw (15), and the outer wall of the moving block (16) is slidably connected to the inner wall of the through groove (13), and there are two moving blocks (16), which are staggered and distributed at the two ends of the two lead screws (15).

6. The weighing machine according to claim 5, characterized in that: The side of the moving block (16) away from the mounting plate (12) is connected to the second mounting frame (17) by bolts, and a servo motor (18) is installed on the side of the second mounting frame (17) by bolts, and the output end of the servo motor (18) is transmission-connected to a rotating shaft (19), and the rotating shaft (19) is installed inside the second mounting frame (17) by a bearing, and a protrusion (20) is fixedly connected to the outer wall of the rotating shaft (19), and the rotating shaft (19) is sleeved inside a positioning rod (22), and a groove (21) is provided at one end of the positioning rod (22) close to the rotating shaft (19), and the rotating shaft (19) and the protrusion (20) are both clamped inside the groove (21).

7. The weighing machine according to claim 1, characterized in that: The side of the connecting plate (27) is connected to the side outer wall of the positioning rod (22) by bolts, and there are two connecting plates (27), which are symmetrically distributed on the side of the positioning rod (22). The connecting plate (27) is connected to the cylinder (26) by bolts, and the cylinder (26) is arranged adjacent to the positioning rod (22). A slide groove (24) is opened in the middle of the positioning rod (22), and an L-shaped extension rod (25) is slidably connected to the inside of the slide groove (24). There are two L-shaped extension rods (25), which are staggered and distributed above the weighing platform (8). One end of the cylinder (26) away from the positioning rod (22) is connected to the ejection plate (28) by bolts, and the side of the ejection plate (28) is connected to the L-shaped extension rod (25) by bolts.

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