Multi-channel testing equipment with automatic feeding and discharging functions

Abstract

The utility model relates to the technical field of automatic operation, and discloses an automatic loading and unloading multi-channel test device, which comprises a turntable mechanism, a test cabinet, a test fixture for bearing a product, a loading mechanism for loading the product, a carrying mechanism for carrying the test fixture, and an unloading mechanism for unloading the product, the feeding mechanism, the carrying mechanism and the discharging mechanism are sequentially distributed in the rotating direction of the rotating disc mechanism, the testing cabinet is located on one side of the carrying mechanism and comprises a plurality of testing positions, and each testing position is provided with a testing seat used for being matched with the corresponding testing jig. The utility model has the following technical effects: the automatic test of products is realized, the test efficiency is improved, and the test device is suitable for large-batch test requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated operations, and particularly relates to a multi-channel testing device with automatic loading and unloading. Background Art

[0002] In the field of electronic product manufacturing, circuit boards are often used to monitor product voltage, current parameters, and product usage status, etc., so as to protect the products. Therefore, the electrical performance testing of circuit boards is also particularly important.

[0003] It is known that the device for testing the electrical performance of a circuit board usually includes a test male socket and a test female socket. The circuit board is placed between the test male socket and the test female socket, and electrical connection is achieved by using the probes on the test male socket or the test female socket to perform the electrical performance testing of the circuit board.

[0004] In the prior art, a manual operation method is mostly adopted, where the circuit boards are manually placed into the test male socket and the test female socket one by one. After the testing is completed, the circuit boards are taken down. The testing efficiency of this method is relatively poor, and it can only meet the testing requirements of small production volumes and cannot be applied to large-volume testing requirements. Summary of the Utility Model

[0005] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a multi-channel testing device with automatic loading and unloading, which realizes the automated testing of products, improves the testing efficiency at the same time, and is applicable to large-volume testing requirements.

[0006] The technical purpose to be achieved by the utility model is realized through the following technical solutions:

[0007] The utility model provides a multi-channel testing device with automatic loading and unloading, including a turntable mechanism, a testing cabinet, a testing fixture for carrying products, a loading mechanism for product loading, a handling mechanism for handling the testing fixture, and a unloading mechanism for product unloading;

[0008] The loading mechanism, the handling mechanism, and the unloading mechanism are sequentially distributed around the rotation direction of the turntable mechanism, and the testing cabinet is located on one side of the handling mechanism;

[0009] The testing cabinet includes a plurality of testing positions, and a testing socket for pairing with the testing fixture is provided on each testing position.

[0010] In some implementation manners, the handling mechanism includes a six-axis robot and a clamping module for clamping the testing fixture. The clamping module is connected to the driving end of the six-axis robot. The six-axis robot has strong spatial mobility and high degrees of freedom, and is suitable for driving requirements of complex trajectories.

[0011] In some implementations, the clamping module includes an opening clamp cylinder, a first jaw, and a second jaw. The mounting end of the opening clamp cylinder is connected to the driving end of the six-axis manipulator, and the driving end of the opening clamp cylinder is connected to the first jaw and the second jaw. Under the driving action of the opening clamp cylinder, the first jaw and the second jaw clamp or release the test fixture, achieving the automatic handling effect of the test fixture.

[0012] In some implementations, a first pin is provided on one side of the first jaw opposite to the second jaw, and a second pin is provided at a position corresponding to the first pin on the second jaw;

[0013] The test fixture is provided with a first socket and a second socket respectively for matching with the first pin and the second pin. By using the structural design of the pins and sockets, on the one hand, the accuracy of handling the test fixture can be improved, and on the other hand, the handling stability of the test fixture can also be improved.

[0014] In some implementations, the first jaw includes a mounting end, a connecting end, and a clamping end connected in sequence. A first step is formed between the mounting end and the connecting end, and a second step is formed between the connecting end and the clamping end;

[0015] The mounting end and the clamping end extend in opposite directions based on the connecting end;

[0016] The first jaw and the second jaw are in a symmetric relationship. With this structural design of the first jaw and the second jaw, it is convenient to insert the test fixture into the test position, realizing the feeding, handling, and discharging of the test fixture.

[0017] In some implementations, positioning tables for positioning the test fixture are provided at positions on the turntable mechanism opposite to the feeding mechanism, the handling mechanism, and the discharging mechanism;

[0018] The test fixture is provided with a number of placement positions for product positioning, enabling multiple products to be tested at one time through one test fixture, improving the test efficiency.

[0019] In some implementations, the feeding mechanism includes a tray feeding and conveying module and a product feeding and handling module. The product feeding and handling module operates between the tray feeding and conveying module and the turntable mechanism to achieve the automatic feeding and handling of the product.

[0020] In some implementations, the discharging mechanism includes a tray discharging and conveying module and a product discharging and handling module. The product discharging and handling module operates between the tray discharging and conveying module and the turntable mechanism to achieve the automatic discharging and handling of the product.

[0021] In some implementations, a tray transfer mechanism is further included. The tray transfer mechanism operates between the tray loading and conveying module and the tray unloading and conveying module to achieve automatic handling of empty trays.

[0022] In some implementations, a defective product re-injection mechanism is further included. The defective product re-injection mechanism is located on one side of the unloading mechanism to improve the accuracy of testing.

[0023] In summary, the present utility model has at least the following advantages:

[0024] A multi-channel testing device with automatic loading and unloading provided by the present utility model enables products and testing fixtures to be transferred between various operating mechanisms by means of a turntable mechanism, realizing automatic loading, handling, and unloading and conveying. In addition, multiple testing positions are provided for simultaneous testing operations. During the testing process at some testing positions, the handling mechanism can unload and handle the testing fixtures that have completed testing, eliminating the waiting time for the operation of the handling mechanism and effectively improving the testing efficiency, which is applicable to large-volume testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the multi-channel testing device according to Embodiment 1 of the present utility model;

[0026] Figure 2 Schematic diagram of the handling mechanism according to Embodiment 2 of the present utility model;

[0027] Figure 3 Schematic diagram of the clamping module and the testing fixture according to Embodiment 2 of the present utility model;

[0028] Figure 4 Schematic diagram of the multi-loading mechanism, unloading mechanism, tray transfer mechanism, and defective product re-injection mechanism according to Embodiment 3 of the present utility model;

[0029] 100, turntable mechanism;

[0030] 200, testing cabinet; 210, testing seat;

[0031] 300, testing fixture; 310, placement position;

[0032] 400, loading mechanism; 410, tray loading and conveying module; 420, product loading and handling module;

[0033] 500, handling mechanism; 510, six-axis manipulator; 520, clamping module; 521, clamping cylinder; 522, first clamping jaw; 522a, mounting end; 522b, connecting end; 522c, clamping end; 523, second clamping jaw; 524, first pin; 525, second pin;

[0034] 600. Blanking mechanism; 610. Tray blanking and conveying module; 620. Product blanking and handling module;

[0035] 700. Tray transfer mechanism;

[0036] 800. Defective product re-injection mechanism. Detailed implementation manner

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0038] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0039] Embodiment 1:

[0040] Please refer to Figure 1 , an automatic loading and unloading multi-channel testing device, including a turntable mechanism 100, a testing cabinet 200, a testing fixture 300 for carrying products, a loading mechanism 400 for product loading, a handling mechanism 500 for handling the testing fixture 300, and a blanking mechanism 600 for product blanking.

[0041] The loading mechanism 400, the handling mechanism 500, and the blanking mechanism 600 are sequentially distributed around the rotation direction of the turntable mechanism 100, and the testing cabinet 200 is located on one side of the handling mechanism 500.

[0042] It can be understood that the turntable mechanism 100 plays a role of rotational transmission. The loading mechanism 400, the handling mechanism 500, and the blanking mechanism 600 are sequentially distributed around the rotation direction of the turntable mechanism 100. After each rotation operation of the turntable mechanism 100, the loading mechanism 400, the handling mechanism 500, and the blanking mechanism 600 can perform corresponding operations on the products or the testing fixture 300 at the corresponding positions on the turntable mechanism 100, achieving the effect of multi-mechanism simultaneous operation.

[0043] Furthermore, the testing cabinet 200 includes multiple testing positions, and each testing position is provided with a testing seat 210 for pairing with the testing fixture 300.

[0044] After the test fixture 300 holds the product, the handling mechanism 500 transports the test fixture 300 to the test cabinet 200, so that the test fixture 300 is paired with the test socket 210 at one of the test positions in the test cabinet 200. Here, the test fixture 300 and the paired test socket 210 can be understood as a male test socket and a female test socket. The product is placed in the test fixture 300, and then the test fixture 300 and the test socket 210 are electrically connected to realize the electrical performance test of the product. Since the test cabinet 200 includes multiple test positions, when the handling mechanism 500 transports the test fixture 300 to the test cabinet 200 for testing one by one, the completion times of the tests are also different. Therefore, in one state, it is possible to satisfy that after the handling mechanism 500 transports the test fixture 300 to the test cabinet 200 for testing, immediately afterwards, it is also possible to transport the test fixture 300 that has completed the test in the test cabinet 200 to the turntable mechanism 100.

[0045] Specifically, the operation process of the multi-channel test equipment is as follows. In the first operation, the test fixture 300 in the no-load state can be placed on the turntable mechanism 100 manually or by the handling mechanism 500. For example, the test fixture 300 in the no-load state is placed on the turntable mechanism 100 corresponding to the loading mechanism 400 position. After the loading mechanism 400 loads the product to be tested onto the test fixture 300, the turntable mechanism 100 rotates to make the test fixture 300 rotate to the corresponding handling mechanism 500 position. The handling mechanism 500 transports the entire test fixture 300 from the turntable mechanism 100 to the test cabinet 200, so that the test fixture 300 is paired with a test socket 210 in the test cabinet 200, and the electrical performance test of the product carried by the test fixture 300 is performed.

[0046] Repeat this cycle until after the first test fixture 300 completes the test in the test cabinet 200, the handling mechanism 500 transports the test fixture 300 that has completed the test to the turntable mechanism 100 position. Under the rotational transmission of the turntable mechanism 100, the test fixture 300 moves to the corresponding unloading mechanism 600 position, and the unloading mechanism 600 unloads the product that has completed the test on the test fixture 300. Finally, the test fixture 300 in the no-load state moves to the corresponding loading mechanism 400 position under the rotational transmission of the turntable mechanism 100, and the loading mechanism 400 loads the product to be tested onto the test fixture 300, and operates in this cycle.

[0047] A multi-channel testing device with automatic loading and unloading provided by the utility model enables products and test fixtures 300 to flow between various operating mechanisms by means of a turntable mechanism 100, realizes automatic feeding, handling, and unloading transportation, and is provided with multiple test positions where test operations can be carried out simultaneously. During the testing process at some test positions, the handling mechanism 500 can carry out unloading and handling of the test fixtures 300 that have completed testing, saving the operation waiting time of the handling mechanism 500, effectively improving the testing efficiency, and being applicable to large-volume testing requirements.

[0048] Embodiment 2:

[0049] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the multi-channel testing device of the utility model. Please refer to Figure 2 and Figure 3 .

[0050] The handling mechanism 500 includes a six-axis manipulator 510 and a clamping module 520 for clamping the test fixture 300. The clamping module 520 is connected to the driving end of the six-axis manipulator 510. The six-axis manipulator 510 has strong spatial mobility and high degrees of freedom, being suitable for driving requirements with complex trajectories.

[0051] It can be known that the test cabinet 200 includes multiple test positions. In order to maximize the test quantity accommodation of the test cabinet 200, the test cabinet 200 can be designed as a multi-layer cabinet structure, and there are several test positions on each layer. For example, the test cabinet 200 is a three-layer cabinet structure, and there are three test positions on each layer. To meet different test requirements, two test cabinets 200 or three test cabinets 200 can also be set, etc. Therefore, the requirements for the operating degrees of freedom of the handling mechanism 500 are relatively high, and the six-axis manipulator 510 can meet the free changes in multiple angles.

[0052] In some embodiments, the clamping module 520 includes an opening clamping cylinder 521, a first clamping jaw 522, and a second clamping jaw 523. The mounting end of the opening clamping cylinder 521 is connected to the driving end of the six-axis manipulator 510, and the driving end of the opening clamping cylinder 521 is connected to the first clamping jaw 522 and the second clamping jaw 523. Under the driving action of the opening clamping cylinder 521, the first clamping jaw 522 and the second clamping jaw 523 clamp or release the test fixture 300, realizing the automatic handling effect of the test fixture 300.

[0053] When it is necessary to clamp the test fixture 300, the opening and closing cylinder 521 is used to drive the first jaw 522 and the second jaw 523 to approach each other, so that the test fixture 300 is clamped between the first jaw 522 and the second jaw 523; when it is necessary to release the test fixture 300, the opening and closing cylinder 521 is used to drive the first jaw 522 and the second jaw 523 to move away from each other, so that the test fixture 300 is disengaged from the first jaw 522 and the second jaw 523.

[0054] Further, a first pin 524 is provided on a surface of the first jaw 522 opposite to the second jaw 523, and a second pin 525 is provided at a position corresponding to the first pin 524 on the second jaw 523; a first jack and a second jack are provided on the test fixture 300 for matching with the first pin 524 and the second pin 525 respectively.

[0055] By using the mutual matching of the first pin 524 and the first jack, and the mutual matching of the second pin 525 and the second jack, on the one hand, the accuracy of handling and loading the test fixture 300 can be improved, and on the other hand, the handling stability of the test fixture 300 can also be improved.

[0056] The first jaw 522 includes a mounting end 522a, a connecting end 522b, and a clamping end 522c that are connected in sequence. The mounting end is used to connect to the driving end of the opening and closing cylinder 521, and the clamping end 522c is used to clamp the test fixture 300. A first step is formed between the mounting end and the connecting end 522b, and a second step is formed between the connecting end 522b and the clamping end 522c. The mounting end and the clamping end 522c extend in opposite directions based on the connecting end 522b; here, it can also be understood that the first jaw 522 is a Z-shaped structure.

[0057] It can be understood that the first jaw 522 and the second jaw 523 have the same structure. The first jaw 522 and the second jaw 523 are respectively connected to the driving end of the opening and closing cylinder 521, and the first jaw 522 and the second jaw 523 are in a symmetric relationship.

[0058] The first jaw 522 and the second jaw 523 designed with this kind of structure present a cantilever form, which is convenient for inserting the test fixture 300 into the test position and will not interfere with the internal structure of the test cabinet 200, realizing the loading, handling, and unloading of the test fixture 300.

[0059] In some embodiments, positioning tables for positioning the test fixture 300 are provided at positions on the turntable mechanism 100 opposite to the loading mechanism 400, the handling mechanism 500, and the unloading mechanism 600. By positioning the test fixture 300 through the positioning tables on the turntable mechanism 100, the accuracy of loading the product onto the test fixture 300 can be improved, and the accuracy of transporting the test fixture 300 to the test cabinet 200 and unloading the test fixture 300 onto the turntable mechanism 100 can also be improved.

[0060] A number of placement positions 310 for product positioning are provided on the test fixture 300. Therefore, multiple products can be tested at one time using a single test fixture 300, improving the test efficiency.

[0061] For example, four placement positions 310 for product positioning are provided on a test fixture 300. Understanding in combination with the operation process of the overall equipment, during the process of the loading mechanism 400 sequentially loading four products to be tested onto the same test fixture 300, the unloading mechanism 600 synchronously unloads four products that have completed the test from the same test fixture 300 in sequence. Also, the handling mechanism 500 performs the actions of transporting the test fixture 300 to be tested from the turntable mechanism 100 to the test cabinet 200 and transporting the test fixture 300 that has completed the test in the test cabinet 200 to the turntable mechanism 100. Synchronously, the test fixture 300 in the test cabinet 200 is paired with the test seat 210 to perform the electrical performance test of the product.

[0062] In a test requirement, the electrical performance test time is close to the operation time of the loading mechanism 400, the handling mechanism 500, and the unloading mechanism 600 after one rotation of the turntable mechanism 100. Thus, the operation waiting time of each mechanism can be minimized, improving the operation efficiency.

[0063] Embodiment 3:

[0064] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the multi-channel test equipment of the present utility model. Please refer to Figure 4 .

[0065] The loading mechanism 400 includes a tray loading and conveying module 410 and a product loading and handling module 420. The product loading and handling module 420 operates between the tray loading and conveying module 410 and the turntable mechanism 100 to achieve automatic loading and handling of products.

[0066] The tray at the tray loading and conveying module 410 carries products to be tested. After the tray is conveyed to the designated position by the tray loading and conveying module 410, the product loading and handling module 420 loads the products onto the turntable mechanism 100 one by one, achieving automatic loading of products.

[0067] The blanking mechanism 600 includes a tray blanking and conveying module 610 and a product blanking and handling module 620. The product blanking and handling module 620 operates between the tray blanking and conveying module 610 and the turntable mechanism 100 to achieve automatic blanking and handling of products.

[0068] The tray at the tray blanking and conveying module 610 is in an empty state. The product blanking and handling module 620 discharges products one by one onto the tray until the tray is in a full state. Then, the tray blanking and conveying module 610 conveys the tray for blanking, realizing automatic blanking of products.

[0069] Furthermore, the multi-channel testing device further includes a tray transfer mechanism 700. The tray transfer mechanism 700 operates between the tray loading and conveying module 410 and the tray blanking and conveying module 610 to achieve automatic handling of empty trays.

[0070] It can be known that after the product loading and handling module 420 loads products one by one onto the turntable mechanism 100, the tray at the tray loading and conveying module 410 is in an empty state. At this time, the tray transfer mechanism just transfers the tray at the tray loading and conveying module 410 to the tray blanking and conveying module 610 to carry the products to be blanked.

[0071] In some embodiments, it further includes a defective product re-injection mechanism 800. The defective product re-injection mechanism 800 is located on one side of the blanking mechanism 600 to improve the accuracy of testing.

[0072] After the product completes the test, the handling mechanism 500 transports the test fixture 300 to the turntable mechanism 100. The turntable mechanism 100 rotates to the position of the blanking mechanism 600. The blanking mechanism 600 can obtain the test results of the products carried by the test fixture 300 through the test cabinet 200. If the test results do not meet the requirements, the non-conforming products are blanked to the defective product re-injection mechanism 800 through the blanking mechanism 600, and then the products at the defective product re-injection mechanism 800 are tested again to ensure the quality of the products.

[0073] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0074] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0075] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0076] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0077] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. An automatic loading and unloading multi-channel testing device, characterized in that, It includes a turntable mechanism (100), a test cabinet (200), a test fixture (300) for carrying products, a feeding mechanism (400) for product feeding, a handling mechanism (500) for handling the test fixture (300), and a discharging mechanism (600) for product discharging; The feeding mechanism (400), the handling mechanism (500), and the discharging mechanism (600) are sequentially distributed around the rotation direction of the turntable mechanism (100), and the test cabinet (200) is located on one side of the handling mechanism (500); The test cabinet (200) includes a plurality of test positions, and a test seat (210) for pairing with the test fixture (300) is provided at each test position.

2. The multi-channel testing device for automatic loading and unloading according to claim 1, wherein The handling mechanism (500) includes a six-axis robot (510) and a clamping module (520) for clamping the test fixture (300), and the clamping module (520) is connected to the driving end of the six-axis robot (510).

3. The multi-channel testing device with automatic loading and unloading according to claim 2, characterized in that, The clamping module (520) includes an opening clamping cylinder (521), a first clamping jaw (522), and a second clamping jaw (523). The mounting end of the opening clamping cylinder (521) is connected to the driving end of the six-axis robot (510), and the driving end of the opening clamping cylinder (521) is connected to the first clamping jaw (522) and the second clamping jaw (523).

4. The multi-channel testing device with automatic loading and unloading according to claim 3, characterized in that, A first pin (524) is provided on one side of the first clamping jaw (522) opposite to the second clamping jaw (523), and a second pin (525) is provided at a position corresponding to the first pin (524) on the second clamping jaw (523); First insertion holes and second insertion holes for respectively matching with the first pin (524) and the second pin (525) are formed on the test fixture (300).

5. The multi-channel testing device with automatic loading and unloading according to claim 3, characterized in that, The first clamping jaw (522) includes a mounting end (522a), a connecting end (522b), and a clamping end (522c) that are sequentially connected. A first step is formed between the mounting end (522a) and the connecting end (522b), and a second step is formed between the connecting end (522b) and the clamping end (522c); The mounting end (522a) and the clamping end (522c) extend in opposite directions based on the connecting end (522b); The first clamping jaw (522) and the second clamping jaw (523) are in a symmetrical relationship.

6. The multi-channel testing device with automatic loading and unloading according to claim 1, characterized in that Positioning platforms for positioning the test fixture (300) are provided at positions on the turntable mechanism (100) opposite to the feeding mechanism (400), the handling mechanism (500), and the discharging mechanism (600); A number of placement positions (310) for product positioning are provided on the test fixture (300).

7. The multi-channel testing device with automatic loading and unloading according to claim 1, characterized in that, The feeding mechanism (400) includes a tray feeding and conveying module (410) and a product feeding and handling module (420), and the product feeding and handling module (420) operates between the tray feeding and conveying module (410) and the turntable mechanism (100).

8. The multi-channel testing device with automatic loading and unloading according to claim 7, wherein The blanking mechanism (600) includes a tray blanking and conveying module (610) and a product blanking and handling module (620), and the product blanking and handling module (620) operates between the tray blanking and conveying module (610) and the turntable mechanism (100).

9. The multi-channel testing device with automatic loading and unloading according to claim 8, wherein, It further includes a tray transporting mechanism (700), and the tray transporting mechanism (700) operates between the tray loading and conveying module (410) and the tray blanking and conveying module (610).

10. The multi-channel testing device with automatic loading and unloading according to claim 1, wherein, It further includes a defective product re-injection mechanism (800), and the defective product re-injection mechanism (800) is located on one side of the blanking mechanism (600).

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