Weighing and sorting device for bearing rolling body bar raw materials
By designing an automated weighing and sorting device, the problem of low quality inspection efficiency of bearing rolling element bar raw materials was solved, achieving efficient automated quality inspection and sorting, and reducing quality inspection costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-17
AI Technical Summary
In the existing technology, the quality inspection efficiency of bearing rolling element bar raw materials is low, and it usually requires the cooperation of multiple people, resulting in high quality inspection costs.
Design an automated weighing and sorting device including a chain conveyor, a weighing device, a pneumatic pushing mechanism, and a collection box. The device uses a PLC control module and a logic operation module to realize the automatic conveying, weighing, and sorting of bar raw materials. The pneumatic pushing mechanism collects qualified and unqualified products into different collection boxes.
This improved the efficiency of weight quality inspection of bearing rolling element bar stock, reduced labor costs, and enabled an automated weight quality inspection process.
Smart Images
Figure CN223996671U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of weighing and sorting technology of bearing rolling element bar raw materials, and specifically relates to a weighing and sorting device for bearing rolling element bar raw materials. Background Technology
[0002] Rolling elements are the core components of bearings; their presence enables rolling friction between relatively moving surfaces. Rolling elements are mainly classified by shape into balls, cylindrical rollers, tapered rollers, and needle rollers. The raw material for bearing rolling elements is formed by cutting a whole bar of stock. Weight inspection of these raw materials is a crucial process for controlling their quality. This inspection involves using a weighing device to sort the raw materials that meet the weight requirements into a qualified area, while those that do not meet the requirements are sorted into an unqualified area. The significance of weight inspection for bearing rolling element raw materials is twofold: First, it checks if the material density meets the standard. If the weight of the bars does not meet the standard, it may indicate a problem with the material density, which in turn affects the strength and durability of the rolling elements. For example, insufficient material density may cause the rolling elements to deform or break under pressure, leading to bearing failure. Second, weight inspection also involves the uniformity and consistency of the material. Significant weight differences within the same batch of bars indicate uneven internal structure and the presence of defects such as porosity and inclusions. These defects may not be completely eliminated during subsequent processing, leading to potential problems in the finished product. For example, during heat treatment or machining, uneven material may cause stress concentration, thereby reducing the product's fatigue life. Furthermore, weight inspection is related to production cost control. Large weight deviations in raw materials lead to material waste. For instance, excessively heavy bars require more processing, increasing time and energy consumption; while excessively light bars may require rework, affecting production efficiency. At the same time, consistent weight helps optimize production process parameters, improving the stability and efficiency of the production line. Therefore, weight inspection of bearing rolling element raw materials is a crucial step in controlling the quality of manufactured bearing rolling elements.
[0003] In existing technologies, the weight inspection of bearing rolling element bar stock involves manual weighing using a weighing device. The standard weight for manufacturing the rolling elements is determined based on the process parameters. Bars meeting the standard weight are manually placed in a qualified container, while those not meeting the standard weight are placed in the same container. The main technical problem with this method is low efficiency; the entire inspection process typically requires multiple people, increasing costs. To address these shortcomings, the inventors have developed a weighing and sorting device for bearing rolling element bar stock, effectively resolving these deficiencies. Utility Model Content
[0004] To address the aforementioned technical problems, this invention provides a weighing and sorting device for bearing rolling element bar stock. The device features a scientifically designed structure, significantly improving the efficiency of weight inspection of rolling element bar stock. This invention solves the problem in existing technologies where weight inspection efficiency is low, and the entire weight inspection process typically requires multiple people, leading to increased costs.
[0005] The technical solution adopted in this utility model is as follows: a weighing and sorting device for bearing rolling element rod raw materials, including a first chain conveyor, a second chain conveyor, and a weighing device. The first chain conveyor is horizontally fixedly arranged on the left side of the weighing device, and the second chain conveyor is horizontally fixedly arranged on the right side of the weighing device. The weighing device is located in the middle of the first and second chain conveyors, which are horizontally aligned. A qualified product push port is located on the upper left rear side of the second chain conveyor, and a non-qualified product push port is located on the upper right front side of the second chain conveyor. Two sliding chutes are provided, one inclined and fixedly arranged behind the qualified product push port, and the other inclined and fixedly arranged behind the non-qualified product push port. The pneumatic pushing mechanism is divided into pneumatic pushing mechanism one and pneumatic pushing mechanism two, which have the same structure. The pneumatic pushing mechanism one is fixedly installed at the front position corresponding to the qualified product pushing port, and the pneumatic pushing mechanism two is fixedly installed at the rear position corresponding to the unqualified product pushing port. The qualified product collection box is placed at the lower part of the sliding chute at the rear side of the qualified product pushing port, and the unqualified product collection box is placed at the lower part of the sliding chute at the front side of the unqualified product pushing port. The bar material is placed on chain conveyor one, chain conveyor two, or a weighing device, and the bar material is transported online from left to right using chain conveyor one, chain conveyor two, and the weighing device.
[0006] The weighing device includes a support frame, which is a cuboid structure. A lateral support frame is fixedly mounted on the rear side of the support frame and is L-shaped. A control box is fixedly mounted on the upper rear side of the lateral support frame. A weight display screen is located on the lower front side of the control box, and an interactive interface is located on the upper front side of the control box. A PLC control module is fixedly mounted inside the upper part of the control box. A logic operation module is fixedly mounted on the lower left side of the PLC control module, and a storage module is fixedly mounted on the right side of the logic operation module. The logic operation module and storage module are fixed to the rear backplate inside the control box. A support plate is horizontally and equidistantly mounted on the upper part of the support frame. Two load cells are symmetrically positioned on the upper part of the support plate. Four guide buffer mechanisms are correspondingly positioned on the upper part of the support plate. The weighing support plate is mounted on the symmetrically positioned load cells and is located at the inner center of the four guide buffer mechanisms. A short chain conveyor is fixedly mounted on the upper part of the four guide buffer mechanisms, and the bottom of the front and rear sides of the short chain conveyor is fixed to the upper front and rear ends of the weighing support plate.
[0007] The weighing sensors are fixedly connected to the weight display screen, PLC control module, logic operation module, and storage module via signal lines; the interactive interface is fixedly connected to the PLC control module, logic operation module, and storage module via signal transmission lines; the motors of chain conveyor one, chain conveyor two, and short chain conveyor are fixedly connected to the PLC control module via signal transmission lines.
[0008] The short chain conveyor is at the same height as chain conveyor one and chain conveyor two, and is arranged horizontally in a linear fashion.
[0009] The guiding and buffering mechanism includes a base protrusion, which is fixed on a support plate. A guide rod is installed in the base protrusion, and a tightening screw hole is opened in the upper middle position of the base protrusion. The guide rod is tightened and fixed by the cooperation of the tightening screw and the tightening screw hole. A buffer spring is fixed on the upper part of the base protrusion. An upper base protrusion is fitted on the guide rod. The bottom of the upper base protrusion contacts the upper part of the buffer spring, and the upper part of the upper base protrusion is fixedly connected to the bottom of the short chain conveyor.
[0010] The sliding chute includes a sliding chute body, which is a cuboid structure with openings at both ends and protrusions on both sides. A reinforcing support plate is set at the bottom of the sliding chute body. One end of the reinforcing support plate is fixed to the side of the chain conveyor, and the other end is fixedly connected to the middle of the bottom of the sliding chute body. The upper end of the sliding chute body is fixedly set on the outer side of the qualified product push port or the unqualified product push port, and the upper end of the sliding chute body is flush with the qualified product push port or the unqualified product push port.
[0011] The pneumatic pushing mechanism includes a fixed frame, which is U-shaped. A cylinder is fixedly installed on the front side of the fixed frame near the upper part. A guide hole is opened in the middle of the fixed frame near the bottom. The guide hole and the cylinder are arranged in a front-to-back correspondence. The telescopic rod of the cylinder passes through the front side of the fixed frame and the guide hole and extends to the rear side of the fixed frame. A pushing plate is horizontally fixed on the rear end of the cylinder telescopic rod. An arc-shaped concave surface is opened on the rear side of the pushing plate. Weight reduction holes are symmetrically opened on the left and right ends of the pushing plate. A proximity switch is installed at the upper rear end of the fixed frame and is fixed by a nut.
[0012] The solenoid valve of the cylinder is fixedly connected to the PLC control module via a signal line, and the proximity switch is fixedly connected to the PLC control module via a signal transmission line.
[0013] The fixed frame of the pneumatic pushing mechanism one is fixedly installed on the front side of the chain conveyor two near the left end. The fixed frame of the pneumatic pushing mechanism one corresponds to the qualified product pushing port, and the pushing plate of the pneumatic pushing mechanism one faces the qualified product pushing port. There is a gap between the pushing plate and the chain plate surface of the chain conveyor two. The proximity switch sensing head of the pneumatic pushing mechanism one is vertically facing the upper middle position of the chain conveyor two.
[0014] The fixed frame of the second pneumatic pushing mechanism is fixedly installed on the rear side of the second chain conveyor, near the right end. The fixed frame of the second pneumatic pushing mechanism corresponds to the non-conforming product pushing port, and the pushing plate of the second pneumatic pushing mechanism faces the non-conforming product pushing port. There is a gap between the pushing plate and the surface of the chain plate of the second chain conveyor. The proximity switch sensing head of the second pneumatic pushing mechanism is vertically facing the upper middle position of the second chain conveyor.
[0015] The weight inspection process of this bearing rolling element bar material weighing and sorting device is as follows: First, the weighing device is started via the control keys on the interactive interface, and simultaneously, chain conveyor one and chain conveyor two are started; then, according to the process parameters of different rolling elements, the weight threshold of the bar material is set through the interactive interface (bar material with a weight within the weight threshold range is considered qualified bar material), and stored in the storage module; the bar material cut from the cutting equipment is conveyed to chain conveyor one via a conveyor, and chain conveyor one continues to convey the bar material to the short chain conveyor of the weighing device. At this time, due to the weight of the bar material itself (at this time, the short chain conveyor and the weighing support plate are considered constant weight), the weight of the short chain conveyor and the weighing support plate themselves, the weight of the bar material itself is used as the basis for the quality inspection. As the bar stock and short chain conveyor move downwards, the upper support cylinder at the bottom of the short chain conveyor moves slightly downwards along the guide rod. When the weighing support plate contacts the load cell, the load cell transmits the detected weight signal to the storage module. Simultaneously, the storage module transmits the acquired weight signal to the PLC control module (at this time, the PLC control module sends a stop command to the motor of the short chain conveyor, stopping the conveyor). The PLC control module then transmits the acquired weight signal to the logic operation module. The logic operation module performs a comparison operation (the PLC control module retrieves a pre-set weight threshold for qualified bar stock from the storage module) and transmits the weight signal of the bar stock that meets the weight threshold. The signal is sent to the PLC control module, which then sends a start control command to the motor of the short chain conveyor. The short chain conveyor continues to transport the qualified bar stock to the right until it reaches the second chain conveyor. The second chain conveyor continues to move the bar stock to the right. When the bar stock reaches the position of the pneumatic pushing mechanism, the proximity switch on the pneumatic pushing mechanism senses the bar stock and transmits the signal to the PLC control module. The PLC control module sends a start control command to the solenoid valve of the cylinder of the pneumatic pushing mechanism. The cylinder's extension rod extends through the guide hole, pushing the pushing plate backward. When the pushing plate contacts the qualified bar stock, the pushing plate... Under the action of the conveyor belt, the bar stock rolls along the qualified product push port and sliding chute into the qualified product collection box. When the weight of the bar stock measured by the weighing sensor does not meet the preset weight threshold after comparison by the logic operation module, the PLC control module sends a shut-off control command to the proximity switch on the pneumatic pushing mechanism one. When the bar stock moves to the position of the proximity switch on the pneumatic pushing mechanism two under the conveyor belt two, the proximity switch of the pneumatic pushing mechanism two transmits the sensed signal to the PLC control module. The PLC control module sends a start control command to the solenoid valve of the cylinder of the pneumatic pushing mechanism two, and the pneumatic pushing mechanism two rolls the bar stock along the unqualified product push port and sliding chute into the unqualified product collection box. The above process completes the weight quality inspection process of the bar stock.
[0016] The beneficial effects of this utility model are as follows: by setting up chain plate conveyor 1, chain plate conveyor 2, weighing device, sliding chute, pneumatic pushing mechanism 1, pneumatic pushing mechanism 2, qualified product collection box and unqualified product collection box, the automatic conveying, automatic weighing and automatic sorting and collection of bar raw materials are realized, which greatly improves the efficiency of weight quality inspection of rolling bar raw materials and reduces the labor cost of weight quality inspection of bar raw materials. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the weighing device of this utility model;
[0019] Figure 3 This is a partial enlarged view of the support plate, weighing sensor, and weighing support plate of the weighing device of this utility model;
[0020] Figure 4 This is a schematic diagram of the guiding and buffering mechanism of this utility model;
[0021] Figure 5 This is a structural diagram of the chain conveyor, sliding chute, pneumatic pushing mechanism, qualified product collection box and unqualified product collection box of this utility model;
[0022] Figure 6 This is a schematic diagram of the pneumatic pushing mechanism of this utility model;
[0023] The diagram is labeled as follows: 1. Chain conveyor one; 2. Chain conveyor two; 3. Weighing device; 31. Support frame; 32. Side support frame; 33. Control box; 34. Weight display screen; 35. Interactive interface; 36. PLC control module; 37. Logic operation module; 38. Storage module; 39. Support plate; 310. Weighing sensor; 311. Guide buffer mechanism; 3111. Base protrusion; 3112. Guide rod; 3113. Tightening screw hole; 3114. Buffer spring; 3115. Upper protrusion. 312. Weighing support plate; 313. Short chain conveyor; 4. Qualified product push port; 5. Unqualified product push port; 6. Sliding chute; 61. Sliding chute body; 62. Reinforcing support plate; 7. Pneumatic pushing mechanism; 71. Fixing frame; 72. Cylinder; 73. Guide hole; 74. Pushing plate; 75. Arc-shaped concave surface; 76. Weight reduction hole; 77. Proximity switch; 8. Pneumatic pushing mechanism one; 9. Pneumatic pushing mechanism two; 10. Qualified product collection box; 11. Unqualified product collection box; 12. Bar stock raw material. Detailed Implementation
[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model provides a weighing and sorting device for bearing rolling element bar raw materials:
[0026] like Figure 1 As shown, chain conveyor 1 is horizontally fixed on the left side of weighing device 3, and chain conveyor 2 is horizontally fixed on the right side of weighing device 3. Weighing device 3 is located in the middle of chain conveyor 1 and chain conveyor 2, and chain conveyor 1 and chain conveyor 2 are horizontally aligned. Short chain conveyor 313 is at the same height as chain conveyor 1 and chain conveyor 2, and is horizontally arranged linearly from left to right.
[0027] The chain conveyor 1 and chain conveyor 2 are controlled by a control switch to open and close. During the weight quality inspection of the bar raw material 12, chain conveyor 1 and chain conveyor 2 are in the normally open state.
[0028] The above-mentioned weighing device 3 can be used to weigh the bar stock 12 online, and the logic operation module 37 can be used to compare and calculate the weight to determine whether the bar stock 12 is qualified or unqualified.
[0029] The short chain conveyor 313 is at the same height as the chain conveyor 1 and the chain conveyor 2, and is arranged horizontally in a linear fashion, forming a conveyor line for conveying the bar material 12, thus providing online conveying conditions for weighing and sorting the bearing rolling element bar material 12.
[0030] like Figure 1 As shown in Figure 5, the qualified product push port 4 is located on the upper left rear side of the chain conveyor 2, and the unqualified product push port 5 is located on the upper right front side of the chain conveyor 2. The main purpose of the above arrangement is to push the bar material 12 through the qualified product push port 4 or the unqualified product push port 5 into the qualified product collection box 10 or the unqualified product collection box 11 with the push cooperation of the pneumatic push mechanism 8 or the pneumatic push mechanism 9, thereby realizing the weight sorting of the bar material 12.
[0031] like Figure 2 , 3As shown in Figure 4, the bracket 31 is a cuboid structure, and the side bracket 32 is fixedly installed on the rear side of the bracket 31. The side bracket 32 is L-shaped. The control box 33 is fixedly installed on the upper rear side of the side bracket 32. The weight display screen 34 is installed on the lower front side of the control box 33. The interactive interface 35 is installed on the upper front side of the control box 33. The PLC control module 36 is fixedly installed on the upper inside of the control box 33. The logic operation module 37 is fixedly installed on the lower left side of the PLC control module 36. The storage module 38 is fixedly installed on the right side of the logic operation module 37. The logic operation module 37 and the storage module 38 are fixed to the rear backplate inside the control box 33.
[0032] The bracket 31 provides fixed support for the support plate 39, weighing sensor 310, guide buffer mechanism 311, weighing support plate 312, and short chain conveyor 313. The lateral bracket 32 provides a platform for the fixed installation of the control box 33, weight display screen 34, interactive interface 35, PLC control module 36, logic operation module 37, and storage module 38. The weight display screen 34 displays the weight of the bar material 12 measured by the weighing sensor 310. The interactive interface 35 allows setting the weight threshold of the bearing rolling element bar material 12 and manually controlling the start and stop of chain conveyor 1, chain conveyor 2, and short chain conveyor 313. Through the settings of the PLC control module 36, the short chain conveyor 313, the cylinders 72 of the first pneumatic pushing mechanism 8, the cylinders 72 of the second pneumatic pushing mechanism 9, and the proximity switch 77 of the first pneumatic pushing mechanism 8 can be automatically controlled. Through the settings of the logic operation module 37, the weight of the bar material 12 detected by the weighing sensor 310 can be compared with a set weight threshold. Through the settings of the storage module 38, the weight data of the bar material 12 detected by the weighing sensor 310 can be stored.
[0033] like Figure 2 As shown in Figure 3, the support plate 39 is horizontally and equidistantly arranged on the upper part of the bracket 31. Two load cells 310 are provided, and the two load cells 310 are symmetrically arranged on the upper part of the support plate 39. The guide buffer mechanism 311 is arranged in a quadrilateral shape on the upper part of the support plate 39. The weighing support plate 312 is arranged on the symmetrically arranged load cells 310. The weighing support plate 312 is located at the inner center of the four guide buffer mechanisms 311. The short chain plate conveyor 313 is fixedly arranged on the upper part of the four guide buffer mechanisms 311. The bottom of the front and rear sides of the short chain plate conveyor 313 is fixed to the upper front and rear ends of the weighing support plate 312.
[0034] The aforementioned support plate 39 provides a high horizontal support plane for the load cell 310, thereby improving the weighing accuracy of the load cell 310 on the bar material 12. The aforementioned guide and buffer mechanism 311 provides stable guidance for the short chain conveyor 313 and radially limits its movement to prevent radial swaying. Furthermore, it provides axial buffering for the short chain conveyor 313, effectively protecting the load cell 310 from the impact cycles of the bar material.
[0035] The aforementioned setting of the weighing support plate 312 can evenly distribute the gravity from the bar material 12.
[0036] like Figure 1 As shown, chain conveyor 1 and chain conveyor 2 are horizontally aligned left and right. Short chain conveyor 313 is at the same height as chain conveyor 1 and chain conveyor 2, and is arranged linearly horizontally with the same height. The main purpose of this arrangement is to form a linear automated conveyor line that automatically transports the bar material 12, providing the necessary conditions for efficient weight sorting of the bar material 12.
[0037] like Figure 1 and 5 As shown, the qualified product push port 4 is located on the upper left rear side of the chain conveyor 2, and the unqualified product push port 5 is located on the upper right front side of the chain conveyor 2. The above-mentioned setting of the qualified product push port 4 and the unqualified product push port 5 provides a rolling sorting outlet for the sorting and feeding of qualified or unqualified bar raw materials 12.
[0038] like Figure 1 As shown in Figure 5, two sliding chutes 6 are provided, one is inclined and fixedly set on the rear side of the qualified product push port 4, and the other is inclined and fixedly set on the front side of the unqualified product push port 5. With the above-mentioned setting of the sliding chutes 6, when sorting the bar raw material 12, it can automatically slide into the qualified product collection box 10 or the unqualified product collection box 11 by its own weight, thereby realizing the weight sorting of the bar raw material 12.
[0039] like Figure 1 , 5As shown, the pneumatic pushing mechanism 8 is fixedly installed at the front position corresponding to the qualified product pushing port 4, and the pneumatic pushing mechanism 9 is fixedly installed at the rear position corresponding to the unqualified product pushing port 5. Through the above-mentioned arrangement of the pneumatic pushing mechanism 8 and the pneumatic pushing mechanism 9, the qualified bar stock 12 can be pushed and rolled out using the pneumatic pushing mechanism 8, and the unqualified bar stock 12 can be pushed and rolled out using the pneumatic pushing mechanism 9.
[0040] like Figure 1 , 5 As shown, the qualified product collection box 10 is placed at the lower part of the sliding chute 6 behind the qualified product push port 4, and the unqualified product collection box 9 is placed at the lower part of the sliding chute 6 in front of the unqualified product push port 5. The aforementioned arrangement of the qualified product collection box 10 provides space for sorting and collecting qualified bar stock 12. The aforementioned arrangement of the unqualified product collection box 10 provides space for sorting and collecting unqualified bar stock 12.
[0041] like Figure 1 , 5 As shown in Figure 6, the pneumatic pushing mechanism 7 includes a fixed frame 71, which is U-shaped. A cylinder 72 is fixedly installed on the front side of the fixed frame 71 near the upper part. A guide hole 73 is opened in the middle of the fixed frame 71 near the bottom. The guide hole 73 and the cylinder 72 are arranged in a front-to-back correspondence. The telescopic rod of the cylinder 72 passes through the front side of the fixed frame 71 and the guide hole 73 and extends to the rear side of the fixed frame 71. A pushing plate 74 is horizontally fixed on the rear end of the telescopic rod of the cylinder 72. An arc-shaped concave surface 75 is opened on the rear side of the pushing plate 74. Weight reduction holes 76 are symmetrically opened on the left and right ends of the pushing plate 74. A proximity switch 77 is installed at the upper rear end of the fixed frame 71 and is fixed by a nut.
[0042] The guide hole 73 provides guidance for the extension and retraction of the cylinder 72. The mounting bracket 71 provides a platform for the cylinder 72 and a vertical mounting position for the proximity switch 77. The arc-shaped concave surface 75 on the push plate 74 ensures that when the cylinder 72 extends, it first contacts the bar material 12, quickly aligning it. The proximity switch 77, in conjunction with the PLC control module 36, can quickly detect the position of the bar material 12 and simultaneously initiate the extension of the cylinder 72.
[0043] like Figure 1-6As shown, the weight inspection process of this bearing rolling element bar material weighing and sorting device is as follows: First, the weighing device 3 is started via the control keys on the interactive interface 35, and simultaneously the chain conveyor 1 and chain conveyor 2 are started; then, according to the process parameters of different rolling elements, the weight threshold of the bar material 12 is set via the interactive interface 35 (bar weight within the weight threshold range is considered qualified bar material 12), and stored in the storage module 38; the bar material 12 cut from the cutting equipment is conveyed to the chain conveyor 1 via the conveyor, and the chain conveyor 1 continues to convey the bar material to the short chain conveyor 313 of the weighing device 3. At this time, due to the bar material 12 itself... Under the weight of the short chain conveyor 313 and the weighing support plate 312 (which are considered constant weights), the bar stock 12 and the short chain conveyor 313 move downwards. This causes the upper convex cylinder 3115 at the bottom of the short chain conveyor 313 to move slightly downwards along the guide rod 3112. When the weighing support plate 312 contacts the weighing sensor 310, the weighing sensor 310 transmits the detected weight signal to the storage module 38. At the same time, the storage module 38 transmits the acquired weight signal to the PLC control module 36 (at this time, the PLC control module 36 sends a stop signal to the motor of the short chain conveyor 313). Upon receiving the control command (stopping the short chain conveyor 313), the PLC control module 36 transmits the acquired weight signal to the logic operation module 37. The logic operation module 37 performs a comparison operation (the PLC control module 36 retrieves the pre-set weight threshold of qualified bar material from the storage module 38) and transmits the weight signal of the bar material 12 that meets the weight threshold to the PLC control module 36. The PLC control module 36 sends a start control command to the motor of the short chain conveyor 313, and the qualified bar material 12 continues to be conveyed to the right by the short chain conveyor 313 until it reaches the second chain conveyor 2. The second chain conveyor 2 continues to convey the bar material 12 to the right. Moving to the right, when the bar material 12 moves to the position of the pneumatic pushing mechanism 8, the proximity switch 77 on the pneumatic pushing mechanism 8 senses the bar material 12 and transmits the sensed signal to the PLC control module 36. The PLC control module 36 sends a start control command to the solenoid valve of the cylinder 72 of the pneumatic pushing mechanism 8. The telescopic rod of the cylinder 72 extends through the guide hole 73 and pushes the pushing plate 74 to the rear. When the pushing plate 74 contacts the qualified bar material 12, the bar material 12 rolls along the qualified product pushing port 4 and the sliding chute 6 into the qualified product collection box 10 under the pushing action of the pushing plate 74.When the weight of the bar stock 12 measured by the weighing sensor 310 is compared by the logic operation module 37 and does not meet the preset weight threshold, the PLC control module 36 sends a shut-off control command to the proximity switch 77 on the pneumatic pushing mechanism 8. When the bar stock 12 moves to the position of the proximity switch 77 on the pneumatic pushing mechanism 9 under the conveying action of the chain conveyor 2, the proximity switch 77 of the pneumatic pushing mechanism 9 transmits the sensed signal to the PLC control module 36. The PLC control module 36 sends a start control command to the solenoid valve of the cylinder 72 of the pneumatic pushing mechanism 9. The pneumatic pushing mechanism 9 then rolls the bar stock 12 along the non-conforming product push port 5 and the sliding chute 6 into the non-conforming product collection box 11. The above process completes the weight quality inspection process of the bar stock 12.
[0044] Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A kind of bearing rolling body bar stock raw material weighing sorting device, including chain conveyor one (1), chain conveyor two (2), weighing device (3), chain conveyor one (1) is transversely fixed and arranged at the left side position of weighing device (3), chain conveyor two (2) is transversely fixed and arranged at the right side position of the weighing device (3), it is characterized by: The weighing device (3) is arranged in the middle position of the chain conveyor one (1) and the chain conveyor two (2), the chain conveyor one (1) and the chain conveyor two (2) are horizontally aligned left and right; the qualified product pushing port (4) is arranged in the upper left rear side position of the chain conveyor two (2), the unqualified product pushing port (5) is arranged in the upper right front side position of the chain conveyor two (2); the sliding chute (6) is provided with two, one is arranged in the rear side of the qualified product pushing port (4), the other is arranged in the front side of the unqualified product pushing port (5); the pneumatic pushing mechanism (7) is divided into pneumatic pushing mechanism one (8) and pneumatic pushing mechanism two (9), the pneumatic pushing mechanism (7), the pneumatic pushing mechanism one (8) and the pneumatic pushing mechanism two (9) are the same structure; the pneumatic pushing mechanism (8) is fixedly arranged in the front side position corresponding to the qualified product pushing port (4), the pneumatic pushing mechanism two (9) is fixedly arranged in the rear side position corresponding to the unqualified product pushing port (5); the qualified product collecting box (10) is placed in the lower position of the sliding chute (6) on the rear side of the qualified product pushing port (4), the unqualified product collecting box (9) is placed in the lower position of the sliding chute (6) on the front side of the unqualified product pushing port (5); the bar raw material (12) is placed on the chain conveyor one (1), the chain conveyor two (2) or the weighing device (3), and the bar raw material (12) is conveyed from left to right on line by the chain conveyor one (1), the chain conveyor two (2) and the weighing device (3).
2. The apparatus for weighing and sorting the bar stock material of bearing rolling elements according to claim 1, characterized in that: The weighing device (3) includes a support (31) in a cuboid structure, a lateral support (32) fixedly arranged at a rear side of the support (31), the lateral support (32) being in an L shape; a control box (33) fixedly arranged at an upper rear side of the lateral support (32), a weight display screen (34) arranged at a lower front side of the control box (33), an interactive interface (35) arranged at an upper front side of the control box (33); a PLC control module (36) fixedly arranged at an upper inner side of the control box (33), a logic operation module (37) fixedly arranged at a lower left side of the PLC control module (36), a storage module (38) fixedly arranged at a right side of the logic operation module (37), the logic operation module (37) and the storage module (38) being fixed to a rear inner side of the control box (33); a support plate (39) horizontally and equidistantly arranged at an upper side of the support (31), two weighing sensors (310) symmetrically arranged at an upper side of the support plate (39); four guiding and buffering mechanisms (311) correspondingly arranged at the upper side of the support plate (39), a weighing support plate (312) arranged above the two symmetrically arranged weighing sensors (310), the weighing support plate (312) being located at an inner center of the four guiding and buffering mechanisms (311), a short chain plate conveyor (313) fixedly arranged at upper sides of the four guiding and buffering mechanisms (311), the front and rear bottom sides of the short chain plate conveyor (313) being fixed to the front and rear upper sides of the weighing support plate (312).
3. The apparatus for weighing and sorting of bearing rolling element bar stock according to claim 2, wherein: The weighing sensors (310) are respectively fixedly connected to the weight display screen (34), the PLC control module (36), the logic operation module (37) and the storage module (38) through signal lines; the interactive interface (35) is fixedly connected to the PLC control module (36), the logic operation module (37) and the storage module (38) through a signal transmission line; motors of the chain plate conveyor one (1), the chain plate conveyor two (2) and the short chain plate conveyor (313) are fixedly connected to the PLC control module (36) through signal transmission lines.
4. The apparatus for weighing and sorting the bar stock material of bearing rolling elements according to claim 2, characterized in that: The short chain plate conveyor (313) is linearly arranged horizontally and equidistantly with the chain plate conveyor one (1) and the chain plate conveyor two (2).
5. The apparatus for weighing and sorting of bearing rolling element bar stock material according to claim 1, wherein: The guiding and buffering mechanism (311) comprises a base protruding cylinder (3111) fixed on the support plate (39), a guiding rod (3112) installed in the base protruding cylinder (3111), a jacking wire hole (3113) formed in the middle of the upper part of the base protruding cylinder (3111), and the guiding rod (3112) is fixed by the cooperation of the jacking wire and the jacking wire hole (3113); the buffering spring (3114) is fixed on the upper part of the base protruding cylinder (3111), and the upper seat protruding cylinder (3115) is sleeved on the guiding rod (3112), the bottom of the upper seat protruding cylinder (3115) is in contact with the upper part of the buffering spring (3114), and the upper part of the upper seat protruding cylinder (3115) is fixedly connected with the bottom of the short chain plate conveyor (313).
6. The apparatus for weighing and sorting of bearing rolling element bar stock material according to claim 1, wherein: The sliding chute (6) comprises a sliding chute body (61) which is a cuboid structure with open ends and protruding sides, and a reinforcing support plate (62) is arranged at the bottom of the sliding chute body (61), one end of the reinforcing support plate (62) is fixed with the side of the chain plate conveyor two (2), and the other end is fixedly connected with the middle of the bottom of the sliding chute body (61); the upper end of the sliding chute body (61) is fixedly arranged on the corresponding outer side of the qualified product pushing port (4) or the unqualified product pushing port (5), and the upper end of the sliding chute body (61) is flush with the qualified product pushing port (4) or the unqualified product pushing port (5).
7. The apparatus for weighing and sorting of bearing rolling element bar stock according to claim 1, wherein: The pneumatic pushing mechanism (7) comprises a fixing frame (71), the fixing frame (71) is in the shape of a U, a cylinder (72) is fixedly installed on the front side of the fixing frame (71) near the upper part, a guide hole (73) is formed in the middle of the fixing frame (71) near the bottom, the guide hole (73) is arranged in front of and behind the cylinder (72), and the telescopic rod of the cylinder (72) extends to the rear side of the fixing frame (71) through the front side of the fixing frame (71) and the guide hole (73); a pushing plate (74) is transversely fixed on the rear end of the telescopic rod of the cylinder (72), an arc-shaped concave surface (75) is formed on the rear side of the pushing plate (74), and weight-reducing holes (76) are symmetrically formed on the left and right ends of the pushing plate (74); a proximity switch (77) is installed on the upper rear end of the fixing frame (71), and the proximity switch (77) is fixed by a nut.
8. The apparatus for weighing and sorting of bearing rolling element bar stock according to claim 7, wherein: The electromagnetic valve of the cylinder (72) is fixedly connected with the PLC control module (36) through a signal line, and the proximity switch (77) is fixedly connected with the PLC control module (36) through a signal transmission line.
9. The apparatus according to claim 1, wherein: The fixing frame (71) of the pneumatic pushing mechanism one (8) is fixedly arranged on the front side of the chain plate conveyor two (2) near the left end, the fixing frame (71) of the pneumatic pushing mechanism one (8) corresponds to the qualified product pushing port (4), the pushing plate (74) of the pneumatic pushing mechanism one (8) faces the position of the qualified product pushing port (4), the pushing plate (74) is spaced apart from the chain plate surface of the chain plate conveyor two (2), and the sensing head of the proximity switch (77) of the pneumatic pushing mechanism one (8) vertically faces the middle of the upper part of the chain plate conveyor two (2).
10. The apparatus for weighing and sorting of bearing rolling element bar stock material according to claim 1, wherein: The fixed frame (71) of the pneumatic pushing mechanism two (9) is fixedly arranged at the rear side of the chain conveyor two (2) near the right end position. The fixed frame (71) of the pneumatic pushing mechanism two (9) corresponds to the unqualified product pushing port (5), and the pushing plate (74) of the pneumatic pushing mechanism two (9) faces the position of the unqualified product pushing port (5). The pushing plate (74) is arranged with a spacing from the chain plate surface of the chain conveyor two (2). The sensing head of the proximity switch (77) of the pneumatic pushing mechanism two (9) vertically faces the middle position of the upper part of the chain conveyor two (2).