Defect removing mechanism

Abstract

The utility model relates to a defective product removing mechanism which comprises a support and further comprises a first driving source, a second driving source, a third driving source, a fourth driving source and a fourth driving source. The first removing part is fixedly arranged at the output end of the first driving source; the first driving source can drive the first removing part to move back and forth in a reciprocating manner; the second removing part is movably arranged on the first removing part; and the second removing part can be close to or far away from one end of the first removing part. The defective product removing device has unique structural design and a reasonable working mode, has remarkable advantages in the field of defective product removing, can effectively solve many problems existing in a traditional removing mode, and provides powerful support for improving production efficiency and guaranteeing product quality.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a defect rejection mechanism. Background Technology

[0002] In modern industrial production, with the continuous expansion of production scale and the increasing speed of production, product quality control has become increasingly important. To ensure the pass rate of outgoing products, it is necessary to promptly detect and remove defective products during the production process. However, traditional defective product removal methods mostly rely on manual operation, which has many drawbacks. Manual inspection and removal are inefficient, unable to keep up with the high-speed production pace, and easily lead to a large number of defective products being mixed into the finished product, affecting the overall product quality. Moreover, the accuracy of manual operation is greatly affected by subjective factors, and fatigue and misjudgment are prone to occur during long-term work. In addition, some existing automated removal equipment has a complex structure, poor versatility, and is difficult to adapt to the removal needs of different specifications and types of products, and the maintenance cost is also high. In view of this, developing a defective product removal mechanism with a reasonable structure, high efficiency, and strong versatility is of great practical significance. Summary of the Invention

[0003] The purpose of this utility model is to provide a unique structural design and a reasonable working method, which has significant advantages in the field of defective product rejection. It can effectively solve many problems existing in traditional rejection methods, provide strong support for improving production efficiency and ensuring product quality, and has broad application prospects and high practical value. This defective product rejection mechanism solves the above-mentioned technical problems.

[0004] To achieve the above technical solution, the technical solution of this utility model is as follows: A defective rejection mechanism mainly includes a support, a first drive source, a first rejection component, and a second rejection component. The support serves as the supporting structure of the entire mechanism, providing a stable mounting base for other components. The first drive source is fixed on the support, and its main function is to provide lifting power, driving the connected components to reciprocate in the up-down direction. The first rejection component is fixed at the output end of the first drive source, and can reciprocate back and forth under the drive of the first drive source to complete the corresponding rejection action. The second rejection component is movably set on the first rejection component and has the function of moving closer to or away from the first rejection component. Through its cooperation with the first rejection component, it can flexibly and accurately reject defective products, meeting the usage needs in different scenarios.

[0005] Furthermore, a linear lifting module is selected as the first drive source. This module features high motion precision and strong stability, enabling precise control of the lifting displacement at the output end to meet the positional accuracy requirements during defect rejection. Sensors are installed at both the beginning and end positions of the linear lifting module. These sensors monitor the motion status of the module in real time. When the module reaches the starting or ending position, the sensors promptly provide feedback signals to ensure the accuracy and safety of the motion, preventing abnormal situations such as overtravel. They also provide crucial positional information for the automated control of the entire rejection mechanism.

[0006] Furthermore, the first rejection component mainly consists of a defective rejection mounting base plate, a first slide cylinder, a rejection suction head mounting base, a suction head assembly, and a filter. The defective rejection mounting base plate is fixed to the output end of the first drive source and serves as the basic load-bearing structure for the entire first rejection component. The first slide cylinder, located on one side of the defective rejection mounting base plate, drives the second rejection component to reciprocate horizontally, allowing for flexible adjustment of its position to adapt to different layouts and rejection requirements. The rejection suction head mounting base is detachably mounted on the output end of the first slide cylinder, facilitating the replacement and maintenance of the suction head assembly and improving the operability and adaptability of the mechanism. The suction head assembly is telescopically inserted into the rejection suction head mounting base; its unique telescopic structure allows for better contact and engagement with the defective products to be rejected, ensuring reliable suction. The filters arranged in an array on the defective product rejection mounting base are connected to the suction head assembly via pipelines. The filters can filter and purify the airflow of the suction head assembly during the process of picking up defective products, preventing impurities from entering the suction head assembly and affecting its normal operation. At the same time, it also helps to maintain the cleanliness of the entire mechanism, improves its operational reliability and service life.

[0007] Furthermore, the suction head assembly specifically includes a suction head movably inserted into a rejection suction head holder, with a spring fitted onto the suction head and a nut screwed onto one end. The spring provides elastic cushioning when the suction head contacts defective products, ensuring full contact between the suction head and the surface of the defective product, improving suction stability, and preventing damage to the defective product or suction head due to rigid contact. The square-shaped nut facilitates tightening or loosening with tools, simplifying the assembly and maintenance of the suction head assembly. The suction head has a through-hole for airflow, a key structural element for suction. In conjunction with an external air source and filter, it generates suction force under airflow to pick up defective products. One end of the suction head tapers outward along its axis into a frustum shape. This design helps to better align with defective products, increasing the contact area and further improving suction accuracy and success rate.

[0008] Furthermore, the second rejection component includes a second rejection base plate, a second slide cylinder, a second suction head holder, and a second suction head assembly. The second rejection base plate is slidably connected to the defective rejection mounting base plate via a linear guide. This connection allows the second rejection base plate to slide smoothly and steadily on the first rejection component, ensuring the accuracy and stability of the second rejection component's movement. The linear guide sliding connection is secured by a wedge block assembly, which effectively prevents the second rejection base plate from loosening or shifting during movement, ensuring its positional accuracy. A second slide cylinder is located on one side of the second rejection base plate, and its output end has a second suction head holder parallel to the rejection suction head holder. An array of retractable second suction head assemblies is arranged on the second suction head holder, and one end of each second suction head assembly is connected to a second filter. The second suction head assembly and the suction head assembly in the first rejection component adopt the same structure. The second filter and the filter also adopt the same structure. This design ensures that the entire rejection mechanism can maintain consistent suction performance and working reliability under different positions and working conditions, and facilitates standardized production, interchangeability and maintenance of parts.

[0009] Furthermore, in practical applications, this defect rejection mechanism can work in conjunction with other equipment such as inspection devices on the production line. After the inspection device performs quality inspection on the products, it transmits information such as the location and type of defective products to the control system. Based on this information, the control system controls the actions of components such as the first drive source, the first slide cylinder, and the second slide cylinder of the defect rejection mechanism. For example, when a defective product is detected at a specific location, the first drive source drives the first rejection component to descend to a suitable height. Then, the first slide cylinder and / or the second slide cylinder drive the corresponding suction head assembly to move above the defective product. The suction head assembly generates suction to pick up the defective product. Subsequently, with the coordinated cooperation of all components, the defective product is transferred to the designated collection area, completing the rejection process. The entire process achieves automated and precise operation, effectively improving the efficiency and quality of defective product rejection on the production line.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1) This utility model has the ability to efficiently and accurately remove defective products:

[0012] Multi-component coordinated movement: This defective product rejection mechanism, through the coordinated operation of a first drive source, a first rejection component, and a second rejection component, can achieve precise positioning and removal of defective products in three-dimensional space. The first drive source provides accurate lifting power, enabling the suction head assembly to reach defective product positions at different heights. The first slide cylinder in the first rejection component and the second slide cylinder in the second rejection component can drive the suction head assembly to move flexibly in the horizontal direction. Combined with the suction head assembly's own telescopic structure and adjustable approach and distance functions, both scattered single defective products and concentrated multiple defective products can be efficiently and accurately rejected, effectively improving the accuracy and success rate of defective product rejection on the production line.

[0013] Precise position control: The linear lifting module, combined with initial and final position sensors and precise stroke control of each slide cylinder, enables high-precision position control of the entire mechanism during movement. This ensures that the suction head assembly moves accurately above defective products each time and performs the suction operation with the appropriate posture and force, minimizing misoperation and product damage, guaranteeing the accuracy of the rejection process, and thus improving the stability of product quality on the production line.

[0014] 2) This utility model has good versatility and adaptability:

[0015] Adjustable suction head assembly: The structural design of the suction head assembly gives it a degree of versatility. Its extendable and replaceable features can adapt to the rejection needs of defective products of different shapes, sizes, and materials. By changing different specifications of suction heads or adjusting the extension degree of the suction heads, various types of defective products can be effectively picked up. There is no need to design different rejection mechanisms for each type of defective product, which greatly reduces production costs, improves the adaptability of the equipment, and can be widely used on production lines of various products.

[0016] Modular structural design: The entire defect rejection mechanism adopts a modular design concept. Each component, such as the first rejection component and the second rejection component, is relatively independent and has a clearly defined function, making it easy to combine and adjust according to actual production needs. For example, when facing production lines with different layouts or different distributions of defective products, the positional relationship between the second rejection component and the first rejection component can be flexibly changed, or the number of suction head assemblies can be increased or decreased, easily achieving optimized configuration of the mechanism, better meeting diverse usage scenarios, and improving the equipment's versatility and scalability.

[0017] 3) Stable and reliable working performance:

[0018] A reliable suction and filtration system: The suction head assembly, with its spring-loaded cushioning design and filter purification function, ensures the stability and reliability of the defective product suction process. The spring ensures a closer contact between the suction head and the defective product, improving the success rate of suction while preventing damage caused by hard impacts; the filter filters the airflow, preventing impurities from entering the suction head assembly and affecting suction power and equipment lifespan. This ensures that the suction head assembly can perform its suction function stably for a long time, reducing rejection failures caused by insufficient suction or clogging, and improving the overall reliability of the mechanism.

[0019] Robust connections and motion structure: The stable installation of the bracket, the sliding connection of the linear guide and the cooperation of the wedge block assembly, as well as the firm connections between various components, ensure that the entire mechanism will not loosen or shift during high-speed, frequent movements. The high-quality design and precise control of power components such as the linear lifting module and the slide cylinder also make the mechanism's movement smoother and more accurate, further enhancing its stability, reducing equipment failure rates, ensuring the continuous and stable removal of defective products, and guaranteeing the normal operation of the production line.

[0020] In conclusion, this defect rejection mechanism, with its unique structural design and reasonable working method, has significant advantages in the field of defect rejection. It can effectively solve many problems existing in traditional rejection methods, providing strong support for improving production efficiency and ensuring product quality. It has broad application prospects and high practical value. Attached Figure Description

[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] Figure 1 A 3D diagram of the defect rejection mechanism. Detailed Implementation

[0023] 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.

[0024] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Please see the appendix Figure 1 As shown: A defect rejection mechanism includes a support 1, a first drive source 2, a first rejection component 3 and a second rejection component 4.

[0026] The support frame serves as the foundation for the entire mechanism, providing a stable mounting platform for the first drive source, the first rejection component, and the second rejection component. Its rational structural design allows it to withstand the forces and vibrations generated during the movement of each component, ensuring the overall stability of the mechanism. The defective rejection mounting plate of the first rejection component is firmly connected to the output end of the first drive source, providing a solid foundation for the installation and movement of subsequent components. The second rejection mounting plate of the second rejection component is connected to the defective rejection mounting plate via a linear guide and is secured by a wedge block assembly. This connection method ensures smooth sliding of the second rejection component on the first rejection component and effectively prevents loosening or displacement during movement, ensuring the accuracy of the relative positions of each component and the stability of movement. This allows the entire mechanism to operate stably during high-speed, frequent rejection operations, reducing the probability of malfunctions caused by mechanical instability.

[0027] The first drive source 2 is fixed on the bracket 1 and is used to provide lifting power;

[0028] The first rejection component 3 is fixedly mounted at the output end of the first driving source 2; the first driving source 2 can drive the first rejection component 3 to move back and forth; and

[0029] The second rejection component 4 is movably disposed on the first rejection component 3; the second rejection component 4 can move closer to or away from one end of the first rejection component 3.

[0030] Based on the above embodiments, the first drive source 2 is a linear lifting module; sensors are provided at both the beginning and end positions of the linear lifting module. The first drive source, using a linear lifting module, can provide precise and stable lifting power to the first rejection component. The linear lifting module itself has high motion accuracy, and the accompanying beginning and end position sensors further enhance the accuracy of position control. During the rejection process, the first rejection component and its suction head assembly can be precisely raised and lowered to a height suitable for the defective product, effectively locating both high and low-positioned defective products. Simply put, when processing defective products stacked at different heights, the linear lifting module can quickly and accurately adjust the suction head height according to control system commands, ensuring precise contact between the suction head and the defective product, greatly improving the positioning accuracy of defective product rejection.

[0031] Based on the above embodiments, the first rejection component 3 includes a defective rejection mounting base 31 fixed to the output end of the first drive source 2; a first slide cylinder 32 is provided on one side of the defective rejection mounting base 31; the first slide cylinder 32 can drive the second rejection component 4 to move back and forth; a rejection suction head fixing seat 33 is detachably installed at the output end of the first slide cylinder 32; a suction head assembly 34 is telescopically inserted on the rejection suction head fixing seat 33; a filter 35 is arrayed on the defective rejection mounting base 31; the filter 35 is connected to the suction head assembly 34 by pipeline. The first slide cylinder in the first rejection component can drive the second rejection component to move flexibly in the horizontal direction, while the second slide cylinder of the second rejection component itself can independently adjust the horizontal position of the second suction head assembly it carries. This multi-level horizontal motion control capability allows the suction head assembly to cover the working area in all directions on the horizontal plane and move precisely above the defective products. For example, when defective products are distributed in a scattered manner on the conveyor belt, the suction head assembly can quickly move from one defective product position to another through the coordinated action of the first and second slide cylinders, and can accurately stop directly above each defective product, achieving efficient one-by-one rejection, effectively reducing rejection errors and improving the accuracy of rejection operations.

[0032] Based on the above embodiments, the suction head assembly 34 includes a suction head 341 movably inserted into the removal suction head fixing seat 33; a spring 342 is sleeved on the suction head 341; and a nut 343 is screwed onto one end of the suction head 341.

[0033] Based on the above embodiments, the nut 343 is square-shaped; the suction head 341 has a through-hole for airflow; one end of the suction head 341 tapers outward along the axis into a frustum shape. The suction head assembly features an ingenious structural design; the movable suction head, coupled with a spring, provides a certain degree of elastic extension and contraction. When the suction head contacts a defective product, the spring acts as a buffer, allowing the suction head to better conform to the surface of the defective product, ensuring a stable sealed space is formed during suction, thereby generating reliable suction. For example, for defective products with uneven surfaces or a certain curvature, the spring allows the suction head to adaptively adjust its angle and height, tightly conforming to the defective product and avoiding insufficient suction due to poor contact. The square nut screwed onto one end of the suction head facilitates installation and disassembly, making it easy to maintain and replace the suction head, ensuring it is always in good working condition. The through-hole for airflow is a key structure for generating suction; through connection with a filter and external air source, it can form an effective negative pressure area at the end of the suction head, thereby firmly adsorbing defective products. The design of the suction head tapering outwards into a frustum shape along its axis increases the contact area between the suction head and defective products, further improving the stability and success rate of suction. For example, when suctioning small, round defective products, the frustum-shaped suction head can better wrap around the defective product, ensuring even distribution of suction force and effectively preventing the defective product from slipping during suction, thus guaranteeing the efficient execution of rejection operations.

[0034] Based on the above embodiments, the second rejection component 4 includes a second rejection base plate 41; a linear guide sliding connection is provided between the second rejection base plate 41 and the defective product rejection mounting base plate 31; the linear guide sliding connection is pressed and fixed by a wedge block assembly; a second slide cylinder 42 is provided on one side of the second rejection base plate 41; a second suction head fixing seat 43 is provided at the output end of the second slide cylinder 42, which is parallel to the rejection suction head fixing seat 33; a retractable second suction head assembly 44 is arrayed on the second suction head fixing seat 43; a second filter 45 is connected to one end of the second suction head assembly 44 via a pipeline. The filters arrayed on the second rejection mounting base plate are connected to the suction head assembly pipeline, which can effectively filter the airflow entering the suction head assembly, prevent impurities from entering the suction head and pipeline system, and avoid the situation where the suction power decreases or disappears due to impurities clogging the airflow holes, thus ensuring the stability and continuity of the suction power of the suction head assembly. The solenoid valve provided on the bracket can precisely control the opening and closing of the air path, and open or close the air path in a timely manner according to the rhythm and needs of defective product rejection, so as to achieve precise control of the suction power of the suction head assembly. The array of vacuum gauges can monitor the vacuum level at the suction head assembly in real time, providing feedback information for the control of the solenoid valve and ensuring that the gas path system is always in optimal working condition.

[0035] Based on the above embodiments, the second suction head assembly 44 and the suction head assembly 34 adopt the same structural configuration; the second filter 45 and the filter 35 adopt the same structural configuration.

[0036] Based on the above embodiments, the bracket 1 is provided with a battery valve; the bracket 1 is provided with an array of vacuum gauges.

[0037] When the production line starts operating, after the products are inspected by the detection device, the device transmits relevant information about the defective products (such as location and type) to the control system. Based on the received information, the control system activates the first drive source, lowering the first rejection component to a suitable height, bringing the suction head assembly close to the plane where the defective product is located. Then, according to the specific location and distribution of the defective products, the control system activates the first and / or second slide cylinders, driving the corresponding suction head assembly to move directly above the defective product. During this process, the suction head assembly, under the action of springs, adaptively adjusts its contact state with the surface of the defective product, ensuring full contact between the suction head and the defective product. Then, an external air source provides airflow to the filter and suction head assembly, generating suction at the suction head assembly, firmly adhering the defective product to the suction head. Due to the frustum-shaped design at one end of the suction head and the cushioning effect of the springs, a high success rate is ensured when picking up defective products of different shapes and sizes. After defective products are adsorbed, the first drive source drives the first rejection component to rise. Simultaneously, the first and / or second sliding cylinders adjust the position of the suction head assembly as needed, moving the defective products above the designated collection area. Then, the air source is turned off, the suction disappears, and the defective products fall into the collection area under gravity, completing the rejection operation. Throughout the process, the components work closely together to achieve automated and precise rejection operations based on different defective product conditions, effectively ensuring the quality of products on the production line.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art should be able to make equivalent embodiments by making some changes or modifications to the above-disclosed technical content without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A defect rejection mechanism, comprising a support (1) characterized in that, The defect removal mechanism also includes: The first drive source (2) is fixed on the bracket (1) and is used to provide lifting power; The first rejection component (3) is fixedly mounted at the output end of the first driving source (2); the first driving source (2) can drive the first rejection component (3) to move back and forth; and The second rejection component (4) is movably disposed on the first rejection component (3); the second rejection component (4) can move closer to or away from one end of the first rejection component (3).

2. The defect rejection mechanism as described in claim 1, characterized in that: The first driving source (2) is a linear lifting module; sensors are provided at the beginning and end positions of the linear lifting module.

3. The defect rejection mechanism as described in claim 1, characterized in that: The first rejection component (3) includes a defect rejection mounting base plate (31) fixed to the output end of the first drive source (2); a first slide cylinder (32) is provided on one side of the defect rejection mounting base plate (31); the first slide cylinder (32) can drive the second rejection component (4) to move back and forth; a rejection suction head fixing seat (33) is detachably installed at the output end of the first slide cylinder (32); a suction head assembly (34) is telescopically inserted on the rejection suction head fixing seat (33); a filter (35) is arrayed on the defect rejection mounting base plate (31); the filter (35) is connected to the suction head assembly (34) via a pipeline.

4. The defect rejection mechanism as described in claim 3, characterized in that: The suction head assembly (34) includes a suction head (341) movably inserted into the removal suction head fixing seat (33); a spring (342) is sleeved on the suction head (341); and a nut (343) is screwed onto one end of the suction head (341).

5. The defect rejection mechanism as described in claim 4, characterized in that: The nut (343) is square; the suction head (341) has a through airflow hole; one end of the suction head (341) is tapered outward along the axis into a frustum shape.

6. The defect rejection mechanism as described in claim 1, characterized in that: The second rejection component (4) includes a second rejection base plate (41); a linear rail sliding connection is provided between the second rejection base plate (41) and the defective rejection mounting base plate (31); the linear rail sliding connection is pressed and fixed by a wedge block assembly; a second slide cylinder (42) is provided on one side of the second rejection base plate (41); a second suction head fixing seat (43) is provided at the output end of the second slide cylinder (42) and is arranged parallel to the rejection suction head fixing seat (33); a retractable second suction head assembly (44) is arrayed on the second suction head fixing seat (43); a second filter (45) is connected to one end of the second suction head assembly (44) via a pipe.

7. The defect rejection mechanism as described in claim 6, characterized in that: The second suction head assembly (44) has the same structure as the suction head assembly (34); the second filter (45) has the same structure as the filter (35).

8. The defect rejection mechanism as described in claim 1, characterized in that: The bracket (1) is equipped with a battery valve; the bracket (1) is also equipped with an array of vacuum gauges.

Images