Weight checking equipment

Abstract

The utility model discloses a weight checking device which comprises a weighing table body, a supporting assembly is installed at the bottom end of the weighing table body, a PLC control table is installed at one end of the weighing table body in the length direction of the weighing table body, and a second conveying mechanism is installed between two side vertical plates in the upstream direction. A first conveying mechanism is installed between the two side vertical plates in the downstream direction, and two protection assemblies are symmetrically installed in the middles of the top ends of the two side vertical plates. The weighing table body is arranged to weigh materials conveyed by the first conveying mechanism on the upper portion in a rolling mode, the PLC control table controls the first conveying mechanism to start, stop and turn, the weight of qualified materials is input into the PLC control table firstly in the using process, the weighing table body feeds back information to the PLC control table for comparison after weighing, the first conveying mechanism rotates forwards according with a preset value, and otherwise the first conveying mechanism rotates backwards according with the preset value. Therefore, qualified and unqualified materials are separated.

Description

Technical Field

[0001] The utility model relates to the technical field of weight checking equipment, in particular to a weight checking equipment. Background Art

[0002] Most of the checkweighing equipment on the current market adopts weight sorting machines. Weight sorting machines are a kind of equipment that plays an important role in industrial production and quality control. Their working principle is usually based on advanced weighing sensors and precise control systems. They can quickly and accurately measure the weight of items and screen and classify items according to the preset weight range. They have a very wide range of applications. With its high efficiency and precision, weight sorting machines provide strong support for product quality control in various industries.

[0003] A Chinese patent with the authorization announcement number CN216433220U discloses a vertical checkweighing device, comprising: a checkweighing platform, wherein a body is provided on the outside of the checkweighing platform, and rollers are provided at the top of the checkweighing platform, and a column is provided on one side of the body, and a display screen is provided on the top of the column; a guardrail is provided on both sides of the body, and a through hole is provided on one side of the guardrail, and docking rods are provided inside the through hole, and the docking rods are docked with the body, and the docking rods are evenly spaced and have a mounting groove in the middle of the top. The above scheme limits the guardrail by the mutual cooperation of the limit block and the docking rod, and the guardrail is used to prevent the material from falling during the operation of the vertical checkweighing device, and the mutual cooperation of the movable column and the threaded groove facilitates the height adjustment of the vertical checkweighing device, and the mutual cooperation of the docking groove and the convex plate facilitates the docking of the vertical checkweighing device with the material conveying platform.

[0004] In actual use, after the materials are weighed and differentiated, if the materials are unqualified, they can only be removed manually to avoid mixing the unqualified materials with the qualified materials. Therefore, in actual use, this device increases labor costs, reduces production efficiency, and makes the entire detection process less smooth and efficient. Utility Model Content

[0005] The main purpose of the present invention is to provide a weighing check device that can effectively solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A weighing device comprises a weighing platform body, a support assembly is installed at the bottom end of the weighing platform body, a PLC console is installed at one end of the weighing platform body along its length direction, a base plate is placed on the load-bearing end of the weighing platform body, two side vertical plates are symmetrically installed on the top end of the base plate along both sides of its length direction, a conveying mechanism 2 is installed in the upstream direction between the two side vertical plates, and a conveying mechanism 1 is installed in the downstream direction between the two side vertical plates, and two protective assemblies are symmetrically installed in the middle of the top ends of the two side vertical plates.

[0008] Preferably, the conveying mechanism 1 includes two rollers 1, and the two rollers 1 are rotatably installed on one side between the two side vertical plates, and a conveyor belt 1 is rollingly installed between the outer surfaces of the two rollers 1.

[0009] Preferably, the right end of the roller shaft 1 located at the most upstream is fixedly installed with a first double-groove pulley 2, and the right end of the roller shaft 1 located at the most downstream is fixedly installed with a first single-groove pulley 1, and the first single-groove pulley 1 and the first double-groove pulley 2 are connected by a belt 1.

[0010] Preferably, the conveying mechanism 2 includes a servo motor and two roller shafts 2, the two roller shafts 2 are rotatably installed on the other side between the two side vertical plates, and a conveyor belt 2 is jointly rolledly installed between the outer surfaces of the two roller shafts 2. The servo motor is fixedly installed on the leftmost side vertical plate, and the output shaft of the servo motor is fixedly connected to the frontmost roller shaft 2 through a coupling.

[0011] Preferably, a second single-groove pulley 2 is fixedly installed on the right end of the roller shaft 2 located at the most upstream, and a second double-groove pulley 2 is fixedly installed on the right end of the roller shaft 2 located at the most downstream, and the roller shaft 2 and the second double-groove pulley 2 are connected by belt 2, and the second double-groove pulley 2 and the first double-groove pulley 2 are connected by belt 3.

[0012] Preferably, the two protective components include two fixed blocks, which are respectively installed in the middle part of the two side panels away from the end faces, and two sliding rods are respectively fixedly installed on the top of the two fixed blocks, and the top of the two sliding rods are fixedly installed with limiting blocks.

[0013] Preferably, two slip rings are respectively slid on the two sliding rods, two connecting rods are respectively installed on the outer surfaces of the two slip rings, the bottom ends of the two connecting rods are respectively rotatably installed with two balls in contact with the upper surface of the conveyor belt, and the outer surfaces of the two sliding rods are respectively sleeved with two recoil springs, and the head and tail ends of the two recoil springs are respectively held between the two limit blocks and the two slip rings.

[0014] Preferably, the support assembly includes a fixed frame, the weighing platform body is mounted on the top of the fixed frame by screw threads, four through-threaded holes are respectively opened at the four corners of the top of the fixed frame, threaded support rods are respectively threadedly installed in the inner cavities of the four threaded holes, and a self-locking universal wheel is fixedly installed at the bottom end of the fixed frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the utility model, a weighing platform is set up to weigh the material conveyed by the upper conveying mechanism. The PLC console controls the start, stop and direction of the conveying mechanism. When in use, the weight of qualified materials is first input into the PLC console. After the weighing platform body weighs, the information is fed back to the PLC console for comparison. If it meets the preset value, the conveying mechanism will rotate forward, otherwise it will reverse, thereby separating qualified and unqualified materials.

[0017] 2. In the present invention, two protective components are provided to gather the materials conveyed by the conveying mechanism 1 to prevent the materials from rolling down from the conveying mechanism 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the weighing platform body and the support assembly in the present utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between two conveying mechanisms and two protective components in the present invention;

[0021] Figure 4 This is a schematic diagram of the split structure of the two conveying mechanisms in the present utility model;

[0022] Figure 5 It is a schematic diagram of the side elevation structure of the protective component in the present utility model.

[0023] In the figure: 1. Weighing platform body; 2. Support assembly; 21. Fixed frame; 22. Self-locking universal wheel; 23. Threaded hole; 24. Threaded support rod; 3. PLC console; 4. Bottom plate; 5. Side plate; 6. Conveying mechanism 1; 61. Roller 1; 62. Conveyor belt 1; 63. First single-groove pulley 1; 64. First double-groove pulley 2; 65. Belt 1; 7. Conveying mechanism 2; 71. Roller 2; 72. Conveyor belt 2; 73. Servo motor; 74. Second double-groove pulley 2; 75. Second single-groove pulley 2; 76. Belt 2; 77. Belt 3; 8. Protection assembly; 81. Fixed block; 82. Slide rod; 83. Limit block; 84. Slip ring; 841. Connecting rod; 85. Return spring; 86. Ball bearing. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 5 As shown, a checkweighing device includes a weighing platform body 1, a support assembly 2 is installed at the bottom end of the weighing platform body 1, a PLC console 3 is installed at one end of the weighing platform body 1 along its length, a bottom plate 4 is placed on the load-bearing end of the weighing platform body 1, two side uprights 5 are symmetrically installed on the top of the bottom plate 4 along both sides of its length, a conveying mechanism 2 is installed upstream between the two side uprights 5, a conveying mechanism 1 is installed downstream between the two side uprights 5, and two protective assemblies 8 are symmetrically installed in the middle of the top of the two side uprights 5;

[0026] The weighing platform body 1 is provided to weigh the materials conveyed by the upper conveying mechanism 6, and the PLC console 3 controls the start, stop and direction of the conveying mechanism 6. When in use, the weight of qualified materials is first input into the PLC console 3. After the weighing platform body 1 weighs, the information is fed back to the PLC console 3 for comparison. If it meets the preset value, the conveying mechanism 6 rotates forward, otherwise it rotates reversely, thereby separating qualified and unqualified materials. Two protective components 8 are provided to gather the materials conveyed on the conveying mechanism 6 to prevent the materials from rolling down from the conveying mechanism 6.

[0027] Specifically, the conveying mechanism 6 includes two rollers 61, which are rotatably mounted on one side between the two side vertical plates 5, and a conveyor belt 62 is rotatably mounted between the outer surfaces of the two rollers 61.

[0028] A first double-groove pulley 2 64 is fixedly mounted on the right end of the most upstream roller shaft 1 61 , and a first single-groove pulley 1 63 is fixedly mounted on the right end of the most downstream roller shaft 1 61 . The first single-groove pulley 1 63 and the first double-groove pulley 2 64 are linked by a belt 1 65 .

[0029] The conveying mechanism 2 7 includes a servo motor 73 and two roller shafts 2 71 . The two roller shafts 2 71 are rotatably mounted on the other side between the two side vertical plates 5 . A conveyor belt 2 72 is rotatably mounted between the outer surfaces of the two roller shafts 2 71 . The servo motor 73 is fixedly mounted on the leftmost side vertical plate 5 . The output shaft of the servo motor 73 is fixedly connected to the frontmost roller shaft 2 71 via a coupling.

[0030] A second single-groove pulley 75 is fixedly mounted on the right end of the second roller shaft 71 located at the most upstream position, and a second double-groove pulley 74 is fixedly mounted on the right end of the second roller shaft 71 located at the most downstream position. The second roller shaft 71 and the second double-groove pulley 74 are connected via a second belt 76, and the second double-groove pulley 74 and the first double-groove pulley 64 are connected via a third belt 77.

[0031] The servo motor 73 is started to drive the most downstream roller shaft 2 71 to rotate. The most downstream roller shaft 2 71 and the most upstream roller shaft 2 71 are respectively installed with a second double-groove pulley 2 74 and a second single-groove pulley 2 75. The second double-groove pulley 2 74 and the second single-groove pulley 2 75 are mutually driven by a belt 2 76. In this way, the servo motor 73 drives the two roller shafts 2 71 to roll and transport the material on the conveyor belt 2 72.

[0032] The most upstream roller shaft 1 61 and the most downstream roller shaft 1 61 are respectively mounted with a first double-groove pulley 2 64 and a first single-groove pulley 1 63, which are linked by a belt 1 65. The first double-groove pulley 2 64 is further linked to the second double-groove pulley 2 74 by a belt 3 77. When the second double-groove pulley 2 74 is driven by a servo motor 73, it can drive the conveyor belt 1 62 to rotate and transmit.

[0033] Since placing the material directly on the conveying mechanism 1 6 will have a certain impact force, which will affect the weighing effect of the weighing platform body 1, so when testing the weight of the material, first place the material on the conveying mechanism 2 7, and the conveying mechanism 2 7 will roll the material to the conveying mechanism 1 6, so as to reduce the impact force of the material falling when it is placed;

[0034] It is worth mentioning here that the gravity sensor installed on the load-bearing end of the weighing platform body 1 is only located below the conveying mechanism 1 6;

[0035] After the material is rolled onto conveyor belt 1 62 , the weighing platform body 1 weighs it. When the gravity of the material is qualified, the PLC console 3 controls the servo motor 73 to continue to rotate forward, rolling the material from conveying mechanism 1 6 to its downstream side. On the contrary, when the gravity of the material exceeds the standard, the PLC console 3 controls the servo motor 73 to reverse, and the material is then rolled from conveying mechanism 1 6 to conveying mechanism 2 7 until it rolls down from the upstream side of conveying mechanism 2 7 .

[0036] Specifically, the two protection components 8 include two fixed blocks 81, which are respectively installed in the middle of the two side panels 5 away from the end surfaces. Two sliding rods 82 are fixedly installed on the top of the two fixed blocks 81, and the top of the two sliding rods 82 are fixedly installed with limit blocks 83.

[0037] Two sliding rings 84 are respectively slidably mounted on the two sliding rods 82. Two connecting rods 841 are respectively mounted on the outer surfaces of the two sliding rings 84. Two balls 86 are rotatably mounted at the bottom ends of the two connecting rods 841 and contact the upper surface of the conveyor belt 62. Two recoil springs 85 are respectively sleeved on the outer surfaces of the two sliding rods 82. The head and tail ends of the two recoil springs 85 are respectively held between the two limit blocks 83 and the two sliding rings 84.

[0038] When the conveying mechanism 6 is in operation, the two connecting rods 841 are rotated so that the two connecting rods 841 are close to each other. In this way, the two connecting rods 841 form a protection to prevent the materials conveyed by the conveying mechanism 6 from rolling down from both sides. At the same time, in order to prevent the conveying mechanism 6 from causing unnecessary displacement of the two connecting rods 841 when the conveying state is in progress, the bottom ends of the two connecting rods 841 that are close to each other are rotatably mounted with balls 86 that rotate with the conveying mechanism 6.

[0039] In order to prevent the material from hitting the two connecting rods 841 during transportation, causing them to slide away from each other and lose their protective function, two recoil springs 85 are provided, and the head and tail ends of the two recoil springs 85 are respectively supported between the two limit blocks 83 and the two slip rings 84. In this way, the slip rings 84 are respectively supported and limited by the tension of the two recoil springs 85, thereby preventing the material from hitting the connecting rod 841 and causing unnecessary displacement.

[0040] Specifically, the support assembly 2 includes a fixed frame 21, and the weighing platform body 1 is screw-threadedly mounted on the top of the fixed frame 21. Four through-threaded holes 23 are respectively opened at the four corners of the top of the fixed frame 21. Threaded support rods 24 are respectively threadedly mounted in the inner cavities of the four threaded holes 23. Four self-locking universal wheels 22 are fixedly mounted at the bottom of the fixed frame 21.

[0041] In order to facilitate the user to push the device to the designated working area, four self-locking universal wheels 22 are fixedly installed at the bottom end of the fixed frame 21. It is worth mentioning here that in the working state, because the conveying mechanism 1 6 and the conveying mechanism 2 7 on the top of the support assembly 2 will produce a certain amplitude during operation, or because of the flatness of the ground, the self-locking universal wheels 22 in the device will slide unnecessarily, which will make it difficult for the device to operate stably. Therefore, after the device is pushed to the designated working area, the four threaded support rods 24 are screwed respectively so that the four threaded support rods 24 are in contact with the ground, thereby improving the stability of the device.

[0042] It should be noted that the weighing platform body 1, PLC console 3, and servo motor 73 used in the present invention are all existing technologies, and their specific installation methods, circuit connection methods, and control methods are all conventional designs, which will not be elaborated in detail in the present invention.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A checkweighing device, comprising a weighing platform body (1), characterized in that: A PLC control console (3) is installed at one end of the weighing platform body (1) along its length direction, a base plate (4) is placed on the load-bearing end of the weighing platform body (1), two side vertical plates (5) are symmetrically installed on the top of the base plate (4) along both sides of its length direction, a conveying mechanism 2 (7) is installed in the upstream direction between the two side vertical plates (5), and a conveying mechanism 1 (6) is installed in the downstream direction between the two side vertical plates (5), and two protective components (8) are symmetrically installed in the middle of the top of the two side vertical plates (5).

2. The checkweighing device according to claim 1, characterized in that: The conveying mechanism (6) comprises two roller shafts (61), the two roller shafts (61) being rotatably mounted on one side between the two side vertical plates (5), and a conveyor belt (62) being rollably mounted between the outer surfaces of the two roller shafts (61).

3. The checkweighing device according to claim 2, characterized in that: A first double-groove pulley 2 (64) is fixedly mounted on the right end of the roller shaft 1 (61) located at the most upstream, and a first single-groove pulley 1 (63) is fixedly mounted on the right end of the roller shaft 1 (61) located at the most downstream, and the first single-groove pulley 1 (63) and the first double-groove pulley 2 (64) are connected to each other via a belt 1 (65).

4. The checkweighing device according to claim 3, characterized in that: The conveying mechanism 2 (7) includes a servo motor (73) and two roller shafts 2 (71). The two roller shafts 2 (71) are rotatably mounted on the other side between the two side vertical plates (5). A conveyor belt 2 (72) is rollably mounted between the outer surfaces of the two roller shafts 2 (71). The servo motor (73) is fixedly mounted on the leftmost side vertical plate (5). The output shaft of the servo motor (73) is fixedly connected to the frontmost roller shaft 2 (71) through a coupling.

5. The checkweighing device according to claim 4, characterized in that: A second single-groove pulley 2 (75) is fixedly mounted on the right end of the roller shaft 2 (71) located at the most upstream, and a second double-groove pulley 2 (74) is fixedly mounted on the right end of the roller shaft 2 (71) located at the most downstream. The roller shaft 2 (71) and the second double-groove pulley 2 (74) are connected to each other via a belt 2 (76), and the second double-groove pulley 2 (74) and the first double-groove pulley 2 (64) are connected to each other via a belt 3 (77).

6. The checkweighing device according to claim 2, characterized in that: The two protection components (8) include two fixed blocks (81), the two fixed blocks (81) are respectively mounted on the middle portions of the two side vertical plates (5) away from the end faces, the top ends of the two fixed blocks (81) are respectively fixedly mounted with two slide rods (82), and the top ends of the two slide rods (82) are both fixedly mounted with a limit block (83).

7. The checkweighing device according to claim 6, characterized in that: Two sliding rings (84) are respectively slid on the two sliding rods (82), two connecting rods (841) are respectively installed on the outer surfaces of the two sliding rings (84), and two balls (86) in contact with the upper surface of the conveyor belt (62) are respectively rotatably installed at the bottom ends of the two connecting rods (841). Two return springs (85) are respectively sleeved on the outer surfaces of the two sliding rods (82), and the head and tail ends of the two return springs (85) are respectively supported between the two limit blocks (83) and the two sliding rings (84).

8. The checkweighing device according to claim 1, characterized in that: A support assembly (2) is installed at the bottom end of the weighing platform body (1).

9. The checkweighing device according to claim 8, characterized in that: The support assembly (2) includes a fixed frame (21), and the weighing platform body (1) is installed on the top of the fixed frame (21). Four through-threaded holes (23) are respectively opened at the four corners of the top of the fixed frame (21), and threaded support rods (24) are respectively threadedly installed in the inner cavities of the four threaded holes (23).

10. The checkweighing device according to claim 9, characterized in that: A self-locking universal wheel (22) is fixedly mounted on the bottom end of the fixed frame (21).

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