A rod weighing and removing device

Abstract

The utility model relates to the field of bar production discloses a kind of bar weighing and removing device, including support seat, conveyer a, weighing platform, conveyer b, falling mechanism and display controller, the conveyer a, weighing platform, conveyer b are sequentially fixedly installed on the upper portion of support seat from left to right, the falling mechanism is fixedly connected in support seat right side, the lower portion of support seat is provided with adjusting assembly;The adjusting assembly includes fixedly installed in the deceleration motor of the lower side inner wall of support seat. In the utility model, adjusting assembly is driven bidirectional screw rod rotation by deceleration motor, drives threaded sleeve to move along screw rod, then it is slid by the hinged link of staggered arrangement to push moving piece, finally realize the automatic adjustment of the spacing of guide piece, without manual disassembly or replacement component, different diameter bar can be quickly adapted, and without shutdown, substantially shorten the time of change type, improve the adaptability of equipment to multi-specification production.

Description

Technical Field

[0001] This utility model relates to the field of bar production, and in particular to a bar weighing and rejection device. Background Technology

[0002] In the large-scale production of bar stock, including metal bars, plastic bars, and construction steel bars, weight is one of the key indicators for measuring product quality. Bar stock that does not meet weight requirements (such as being overweight or underweight) may lead to problems such as breakage and assembly errors in subsequent processing stages, and may even affect the performance and safety of the end product.

[0003] The bar weighing and rejection device is an automated equipment used in industrial production to detect the weight of bar-shaped materials and automatically reject unqualified products. Through the mechanical movement of mechanical structures including push rods, baffles, levers, and tilting plates, unqualified products are forcibly pushed away or guided to the rejection channel.

[0004] Traditional bar weighing and rejection devices typically have fixed guide structures. When it is necessary to inspect bars of different diameters, manual disassembly and replacement of guide components are required, necessitating machine downtime. This severely impacts production efficiency and makes it difficult to meet the flexible production needs of multiple varieties and small batches. Therefore, a bar weighing and rejection device is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a bar weighing and rejection device, which aims to improve the problem in the prior art that "the traditional device has a fixed guiding structure, and when changing bars of different diameters, it is necessary to manually disassemble and replace parts and stop the machine, resulting in low production efficiency and difficulty in adapting to the needs of flexible production of multiple varieties and small batches".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bar weighing and rejection device, comprising a support base, a conveyor a, a weighing platform, a conveyor b, a falling mechanism and a display controller, wherein the conveyor a, the weighing platform and the conveyor b are fixedly installed on the upper part of the support base from left to right, the falling mechanism is fixedly connected to the right side of the support base, and an adjustment component is provided at the lower part of the support base;

[0007] The adjustment assembly includes a geared motor fixedly installed on the inner wall of the lower side of the support base. The output shaft of the geared motor is fixedly connected to two sets of connecting rods. Two bidirectional threaded rods are fixedly connected to the outer sides of the two sets of connecting rods. Two sets of threaded sleeves are threadedly connected to the outer sides of the bidirectional threaded rods. Moving parts are slidably connected to the lower part of the support base near the front and rear sides of the threaded sleeves. The two sets of threaded sleeves and the two adjacent sets of moving parts are hinged by multiple sets of hinge rods. A guide is fixedly connected to the upper part of the moving parts.

[0008] As a further description of the above technical solution:

[0009] The two adjacent sets of hinge rods are arranged in an alternating vertical arrangement.

[0010] As a further description of the above technical solution:

[0011] The outer side of the connecting rod and the end of the bidirectional threaded rod are supported on the lower part of the support seat by a bearing seat.

[0012] As a further description of the above technical solution:

[0013] The moving part is connected to the lower part of the support base via a linear bearing.

[0014] As a further description of the above technical solution:

[0015] The guide component has bends on both the left and right sides.

[0016] As a further description of the above technical solution:

[0017] Auxiliary components are provided between conveyor a and the weighing platform and between the weighing platform and conveyor b. The auxiliary components include side plates fixedly installed on the outside of conveyor a and conveyor b. Multiple sets of side plates are provided. A protective plate is fixedly connected to the opposite side of two adjacent sets of side plates. A protrusion is provided on the opposite side of two adjacent sets of side plates. A guide groove is provided on the left side of the protective plate.

[0018] As a further description of the above technical solution:

[0019] The upper part of the guide groove is inclined.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the adjustment component drives the bidirectional threaded rod to rotate through the geared motor, which in turn drives the threaded sleeve to move along the threaded rod. Then, the moving part is pushed to slide through the staggered hinged rods, thus realizing the automatic adjustment of the guide spacing. It can quickly adapt to bars of different diameters without manual disassembly or replacement of parts, and without stopping the machine, which greatly shortens the changeover time and improves the equipment's adaptability to multi-variety production.

[0022] 2. In this utility model, the auxiliary components between the conveyor and the weighing platform guide the bar material to smoothly transition from the conveying mechanism to the weighing platform through the inclined guide groove, avoiding the decrease in weighing accuracy caused by impact or positional deviation; the protective plate can prevent the bar material from colliding during the transfer process and ensure the stability of the weighing process. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2This is a bottom-view three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the auxiliary component in this utility model.

[0026] Legend:

[0027] 1. Support base; 2. Conveyor a; 3. Weighing platform; 4. Conveyor b; 5. Lowering mechanism; 6. Display controller; 7. Adjustment component; 71. Gear motor; 72. Connecting rod; 73. Bidirectional threaded rod; 74. Threaded sleeve; 75. Hinge rod; 76. Moving part; 77. Guide part; 8. Auxiliary component; 81. Side plate; 82. Protective plate; 83. Guide groove; 84. Protrusion. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 and Figure 2This utility model provides an embodiment of a bar weighing and rejection device, comprising a support base 1, a conveyor a2, a weighing platform 3, a conveyor b4, a falling mechanism 5, and a display controller 6. The display controller 6 serves as the control and monitoring center of the device, receiving weight data transmitted from the weighing platform 3 and comparing it with a preset standard to determine whether the bar is qualified; simultaneously, it displays real-time weighing results, equipment operating status, and other information, and controls the linkage action of components such as the adjustment component 7 and the falling mechanism 5 to achieve automated control. The conveyor a2, weighing platform 3, and conveyor b4 are fixedly installed on the upper part of the support base 1 from left to right. The support base 1 serves as the basic frame of the entire device, used to fix and install all upper components such as the conveyor a2, weighing platform 3, conveyor b4, and falling mechanism 5, and also provides a mounting point for the lower adjustment component 7. Space and structural support ensure the stability of the overall device. Conveyors a2 and b4 are used to transport bars. Weighing platform 3 consists of a transmission belt mechanism and a weighing sensor. The weighing sensor is the core component of the dynamic checkweigher. It is responsible for converting the weight signal of the product into an electrical signal and transmitting it to the display controller 6 for processing. The falling mechanism 5 consists of an outer frame, a cylinder and a movable plate. It is the component for rejecting unqualified bars. When the display controller 6 determines that the bar is unqualified, the movable plate of the falling mechanism 5 moves to guide the unqualified bar from the conveyor b4 to the waste collection area, thereby separating qualified and unqualified products. The above components are conventional technologies in existing falling weighing rejection devices, so they will not be described in detail. The falling mechanism 5 is fixedly connected to the right side of the support base 1. An adjustment component 7 is provided at the lower part of the support base 1.

[0030] Reference Figure 1 and Figure 2 The adjusting assembly 7 includes a geared motor 71 fixedly installed on the inner wall of the lower side of the support base 1. The geared motor 71 is a worm gear type, which provides a power source and drives the connecting rod 72 and the double-threaded rod 73 to rotate through the output shaft. It is the driving component for the adjusting action. Two sets of connecting rods 72 are fixedly connected to the output shaft of the geared motor 71. The connecting rods 72 connect the output shaft of the geared motor 71 to the double-threaded rod 73, transmitting the rotational power of the motor to the double-threaded rod 73. The outer sides of both sets of connecting rods 72 are fixedly connected to the double-threaded rod 73. The outer side of the threaded rod 73 is provided with threads in opposite directions. When rotated, it can drive two sets of threaded sleeves 74 to move in opposite directions. The outer side of the bidirectional threaded rod 73 is threaded with two sets of threaded sleeves 74. The threaded sleeves 74 move axially when the threaded rod rotates. The moving part 76 is pushed by the hinge rod 75 to convert the rotational motion into linear motion. The moving part 76 is slidably connected to the front and rear sides of the support base 1 near the threaded sleeves 74. The moving part 76 can move in the front and rear direction of the support base 1, driving the upper guide part 77 to adjust its position. It is the actuator for pitch adjustment.

[0031] Reference Figure 1 and Figure 2Two sets of threaded sleeves 74 are hinged to two adjacent sets of moving parts 76 via multiple sets of hinge rods 75. The two adjacent sets of hinge rods 75 are staggered vertically. The hinge rods 75 connect the threaded sleeves 74 and the moving parts 76, and the staggered vertical arrangement of the adjacent hinge rods 75 transmits force through their own angle changes, causing the moving parts 76 to slide synchronously, thereby achieving smooth adjustment of the spacing of the guide parts 77. The guide parts 77 are fixedly connected to the upper part of the moving parts 76. The guide parts 77 are bent on both sides to guide and limit the bar material during conveying, preventing the bar material from deviating. The spacing can be adjusted by the moving parts 76 to adapt to bars of different diameters. The outer side of the connecting rod 72 and the end of the bidirectional threaded rod 73 are supported on the lower part of the support base 1 by bearing seats. The moving parts 76 are connected to the lower part of the support base 1 by linear bearings.

[0032] Reference Figures 1-3 Auxiliary components 8 are provided between conveyor a2 and weighing platform 3, and between weighing platform 3 and conveyor b4. The auxiliary components 8 include side plates 81 fixedly installed on the outside of conveyor a2 and conveyor b4. Multiple sets of side plates 81 are provided. The side plates 81 serve as the support frame for the auxiliary components 8, fixing components such as protective plates 82 and protrusions 84. Protective plates 82 are fixedly connected to the opposite side of two adjacent sets of side plates 81. Protrusions 84 are provided on the opposite side of two adjacent sets of side plates 81. The protrusions 84 are inserted into the outside of conveyor a2 and conveyor b4 to increase the stability of the side plates 81. A guide groove 83 is provided on the left side of the protective plate 82. The upper part of the guide groove 83 is inclined. The protective plate 82 and the guide groove 83 are used to guide the bar to smoothly transition from conveyor a2 to weighing platform 3, or from weighing platform 3 to conveyor b4, to avoid the bar from affecting the weighing accuracy due to impact or positional displacement.

[0033] Working principle: During use, the bar enters the conveyor a2 on the left side of the device from the upstream process. During the conveying process, the adjustment component 7 at the bottom of the support seat 1 adjusts the guide spacing according to the diameter of the bar: the reduction motor 71 starts and drives the bidirectional threaded rod 73 to rotate through the connecting rod 72, so that the two sets of threaded sleeves 74 on the outside move in opposite directions; the threaded sleeves 74 push the moving part 76 to slide along the support seat 1 through the upper and lower interlocking hinge rods 75. The linear bearing reduces friction and finally drives the upper guide part 77 to adjust the spacing. The bending structure on both sides forms a stable lateral constraint on the bar to prevent deviation.

[0034] The bars conveyed by conveyor a2 smoothly enter the weighing platform 3 via auxiliary component 8. The guide groove 83 of auxiliary component 8 has an inclined design at the top to guide the bars through the transition. The protective plate 82 and the protrusion 84 limit lateral swaying and prevent impact on the weighing platform 3. The weighing platform 3 has a built-in weighing sensor that collects the weight data of the bars in real time and transmits the signal to the display controller 6. After receiving the weight data, the display controller 6 compares it with the preset qualified weight range. If it is qualified, the bars are transferred to conveyor b4 via auxiliary component 8 on the right side of the weighing platform 3 and continue to be conveyed to the next process. If it is unqualified, the display controller 6 triggers the falling mechanism 5 to operate. Its movable plate flips and guides the bars to the waste collection area when they reach the end of conveyor b4, completing the rejection process.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rod weighing and removing device, comprising a supporting seat (1), a conveyor a (2), a weighing table (3), a conveyor b (4), a falling mechanism (5) and a display controller (6), characterized in that: The conveyor a (2), weighing platform (3), and conveyor b (4) are fixedly installed on the upper part of the support base (1) from left to right. The falling mechanism (5) is fixedly connected to the right side of the support base (1). An adjustment component (7) is provided at the lower part of the support base (1). The adjustment assembly (7) includes a geared motor (71) fixedly installed on the inner wall of the lower side of the support base (1). The output shaft of the geared motor (71) is fixedly connected to two sets of connecting rods (72). Two sets of bidirectional threaded rods (73) are fixedly connected to the outer side of the two sets of connecting rods (72). Two sets of threaded sleeves (74) are threadedly connected to the outer side of the bidirectional threaded rods (73). Moving parts (76) are slidably connected to the front and rear sides of the lower part of the support base (1) near the threaded sleeves (74). The two sets of threaded sleeves (74) and the two adjacent moving parts (76) are hinged by multiple sets of hinge rods (75). A guide (77) is fixedly connected to the upper part of the moving part (76).

2. A bar weighing and rejecting apparatus according to claim 1, characterized in that: The two adjacent sets of hinge rods (75) are arranged in an alternating manner.

3. A bar weighing and rejecting apparatus according to claim 1, characterized in that: The outer side of the connecting rod (72) and the end of the bidirectional threaded rod (73) are supported on the lower part of the support seat (1) by a bearing seat.

4. A bar weighing and rejecting apparatus according to claim 1, characterized in that: The movable part (76) is connected to the lower part of the support base (1) by a linear bearing.

5. The bar weighing and rejection device according to claim 1, characterized in that: The guide (77) is bent on both the left and right sides.

6. The bar weighing and rejection device according to claim 1, characterized in that: Auxiliary components (8) are provided between conveyor a (2) and weighing platform (3) and between weighing platform (3) and conveyor b (4). The auxiliary components (8) include side plates (81) fixedly installed on the outside of conveyor a (2) and conveyor b (4). There are multiple sets of side plates (81). A protective plate (82) is fixedly connected to the opposite side of two adjacent sets of side plates (81). A protrusion (84) is provided on the opposite side of two adjacent sets of side plates (81). A guide groove (83) is provided on the left side of the protective plate (82).

7. The bar weighing and rejection device according to claim 6, characterized in that: The upper part of the guide groove (83) is inclined.

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