Feeding device

Abstract

The utility model relates to the technical field of semiconductor material processing equipment, specifically discloses feeding equipment. The equipment includes main body structure frame, positioning platform and two adapter blocks, the central part of main body structure frame top is equipped with processing hole, and processing hole extends along the vertical direction, positioning platform is used for positioning product in the feeding position, and positioning platform has the positioning member, and the positioning member is used for positioning the edge of product, two adapter blocks are arranged on the both sides of main body structure frame respectively, and the adapter block can move along the vertical direction relative to main body structure frame, and the positioning platform is connected in the adapter block. The equipment improves the stability, accuracy and versatility of processing in the chip feeding process through the optimization design of specific structure, and improves the processing quality of product.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor material processing equipment technology, and in particular to feeding equipment. Background Technology

[0002] In chip-wafer bonding processes, chip pick-up and transfer are critical steps. Currently, there are two main methods for loading chips: one is using a wafer ring attached to an adhesive film, and the other is placing it in a tray. Precisely adjusting the angle of the wafer relative to the horizontal plane (or a certain plane) before the wafer is lifted by the ejector pins is crucial, as it directly affects the stability of subsequent processes and product quality.

[0003] For chip loading methods using adhesive films, precise wafer angle adjustment is required before the ejector pins are lifted. Existing film expansion equipment lacks a stable and precise basic structure for angle adjustment. Current film expansion equipment has certain shortcomings in its structural design, making it difficult to guarantee stable and accurate adjustment of the wafer angle in the vertical direction. Due to the lack of a clear operation center, wafer angle deviations are prone to occur during film expansion, significantly reducing the stability and accuracy of film expansion and affecting the subsequent chip-wafer bonding quality.

[0004] For chip loading methods using trays, precise wafer angle positioning is also required before the ejector pins rise. Typically, the tray is fixed first, then the wafer is picked up based on its position. However, existing equipment falls short in terms of accuracy and stability in product angle positioning. The product is prone to angle shifts during positioning, making it impossible to ensure the product is in the precise angular position before the ejector pins rise. This affects the accuracy of subsequent tilt adjustment operations and the quality of product posture adjustment. Furthermore, existing equipment has limitations in versatility, making it difficult to flexibly adjust angles to adapt to different process requirements and to customize angle settings based on the characteristics of different chips and wafers. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device to solve the problems of poor stability of the feeding structure, inaccurate positioning, and insufficient versatility.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A feeding device for processing products includes a main structural frame, a positioning platform, and two adapter blocks. The main structural frame has a processing hole at its top center, extending vertically. The positioning platform positions the product at the feeding position and includes a positioning element for positioning the edge of the product. The two adapter blocks are respectively located on both sides of the main structural frame and are movable vertically relative to the main structural frame. The positioning platform is connected to the adapter blocks.

[0008] As an optional technical solution for the feeding device, the feeding device also includes two drive components, which are respectively located on both sides of the main structural frame, and each drive component is used to drive one of the adapter blocks.

[0009] As an optional technical solution for the feeding equipment, the drive assembly includes a drive unit, a transmission mounting plate, a mounting block, and a lead screw extending in the vertical direction. The mounting block is fixedly connected to a nut, the transmission mounting plate is fixedly connected to a bearing seat, the lead screw and the bearing seat are rotatably connected through a bearing, the lead screw and the nut are in a transmission engagement, and the output end of the drive unit is coaxially connected to the lead screw.

[0010] As an optional technical solution for the feeding equipment, the mounting block is fixedly connected to at least one sliding shaft, the sliding shaft extends in the vertical direction, and the transmission mounting plate is fixedly connected to a linear bearing. The number of linear bearings is the same as that of the sliding shaft, and each linear bearing is slidably engaged with one of the sliding shafts.

[0011] As an optional technical solution for the feeding equipment, a first sensor is provided on the main structural frame, which is used to detect the position of the adapter block.

[0012] As an optional technical solution for the feeding equipment, the positioning platform is a first platform component. The first platform component includes a cover plate, and the two connecting blocks are fixed to the cover plate. The positioning element in the first platform component is defined as a feeding block. The feeding block is located at the bottom of the cover plate and is used to support the edge of the product.

[0013] As an optional technical solution for the feeding equipment, the feeding equipment also includes a film expansion assembly, which includes a tension ring and a spring-loaded connecting block. The tension ring is located at the top of the main structural frame and surrounds the processing hole. The spring-loaded connecting block is located above the tension ring and is elastically connected to the tension ring through an elastic element extending vertically. A spring-loaded pin extending vertically is inserted through the spring-loaded connecting block, with the head of the spring-loaded pin located above the spring-loaded connecting block and the pin shaft passing through the tension ring. The product can be clamped between the head of the spring-loaded pin and the bottom surface of the cover plate.

[0014] As an optional technical solution for the feeding equipment, a second sensor is provided at the bottom of the cover plate. The second sensor is used to detect whether the product is located at the feeding position.

[0015] As an optional technical solution for the feeding equipment, the positioning platform is a second platform component. The positioning element in the second platform component is defined as a pallet. Each pallet is fixed to a connecting block. The pallet is provided with a vacuum channel, which is used to adsorb the edge of the product that is attached to the surface of the pallet.

[0016] As an optional technical solution for the feeding equipment, at least one third sensor is provided at the top of the pallet, which is used to detect the relative positional relationship between the pallet and the product.

[0017] The beneficial effects of this utility model are:

[0018] The main structural frame of the feeding equipment features a processing hole at its top center, providing a stable foundation for subsequent processing. This processing hole extends vertically, ensuring the processing occurs in the vertical direction and providing a clear operational center. This facilitates subsequent processing in the vertical direction, guaranteeing the stability and accuracy of the process. The positioning platform uses positioning components to locate the product's edges, accurately positioning it at the feeding position and effectively preventing product displacement during positioning. Two adapter blocks are located on either side of the main structural frame and can move vertically. The positioning platform is connected to these adapter blocks, allowing for flexible vertical adjustment of its position. This facilitates height adjustment during product feeding and processing, enhancing the versatility of the feeding equipment to adapt to different processing needs. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the feeding device provided in Embodiment 1 of this utility model from a first-view perspective;

[0020] Figure 2 This is a side view of the feeding device provided in Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional view of the feeding device provided in Embodiment 1 of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of the feeding device provided in Embodiment 1 of this utility model from a second perspective;

[0023] Figure 5 This is a partial structural diagram of the feeding device provided in Embodiment 1 of this utility model from a third-person perspective;

[0024] Figure 6 This is a bottom view of the first platform component provided in Embodiment 1 of this utility model;

[0025] Figure 7 This is a schematic diagram of the feeding device provided in Embodiment 2 of this utility model.

[0026] In the picture:

[0027] 100. Main structural frame; 101. Horizontal connecting plate; 102. Vertical plate; 103. Fixing plate;

[0028] 210. Drive unit; 220. Coupling; 230. Bearing housing; 240. Transmission mounting plate; 250. Sliding shaft; 260. Nut; 270. First sensor; 271. First sensor piece; 280. Lead screw; 290. Linear bearing;

[0029] 300, Adapter Block;

[0030] 400. Film expansion assembly; 410. Tensioning ring; 420. Spring-loaded connecting block; 430. Spring-loaded pin; 440. Elastic element; 450. Front limit block;

[0031] 500. First platform component; 510. Cover plate; 520. Feeding block; 530. Rear limit block; 540. Second sensor; 550. Front clearance hole;

[0032] 600, Second platform component; 610, Tray; 620, Vacuum channel; 630, Third sensor. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] Example 1

[0038] like Figures 1 to 6 As shown, this embodiment provides a feeding device for processing products. The feeding device includes a main structural frame 100, a positioning platform, and two transition blocks 300. A processing hole is provided at the center of the top of the main structural frame 100, and the processing hole extends vertically. The positioning platform is used to position the product at the feeding position. The positioning platform has a positioning component for positioning the edge of the product. The two transition blocks 300 are respectively located on both sides of the main structural frame 100. The transition blocks 300 can move vertically relative to the main structural frame 100. The positioning platform is connected to the transition blocks 300.

[0039] The main structural frame 100 of the feeding equipment has a processing hole at the top center, providing a stable foundation for subsequent processing. The processing hole extends vertically, ensuring the processing is carried out vertically and providing a clear operational center. This facilitates subsequent processing in the vertical direction, guaranteeing the stability and accuracy of the process. The positioning platform uses positioning components to locate the product edges, accurately positioning the product at the feeding position and effectively preventing product displacement during positioning. Two adapter blocks 300 are located on both sides of the main structural frame 100 and can move vertically. The positioning platform is connected to the adapter blocks 300, allowing for flexible vertical adjustment of the positioning platform's position. This facilitates height adjustment during product feeding and processing, enhancing the versatility of the feeding equipment to adapt to different processing needs.

[0040] In this embodiment, the axis of the processing hole coincides with the axis of the product located at the feeding position.

[0041] The above-mentioned constraints determine the positional relationship between the processing hole and the product, ensuring that the product is in a precise position before processing. This helps to optimize the specific structure of the feeding equipment and reduce the space occupied.

[0042] For example, two positioning elements are provided; the two positioning elements are symmetrically arranged about the processing hole in the projection of the horizontal plane.

[0043] Within the horizontal plane projection, the two positioning components are symmetrically arranged about the processing hole, which further improves the stability and symmetry of the positioning. This is conducive to the accurate execution of subsequent processing and avoids product damage or poor processing results due to uneven force during processing. It ensures uniform force on the product, improves the quality of product processing, and helps to improve the stability and accuracy of processing.

[0044] In this embodiment, the main structural frame 100 includes a horizontal connecting plate 101, a fixing plate 103 and two vertical plates 102. The horizontal connecting plate 101 is located directly above the fixing plate 103, and the vertical plates 102 extend in the vertical direction, with the upper and lower ends respectively connected to the horizontal connecting plate 101 and the fixing plate 103.

[0045] In this embodiment, the feeding device also includes two drive components, which are respectively located on both sides of the main structural frame 100. Each drive component is used to drive a transition block 300.

[0046] Two drive components are respectively located on both sides of the main structural frame 100, with each drive component driving a transition block 300. This independent drive method enables independent driving and precise control of the transition blocks 300 on both sides. The height and movement speed of the positioning platform on both sides can be flexibly adjusted according to actual needs, achieving more flexible movement adjustment. This ensures the synchronization and stability of the positioning platform on both sides during subsequent processing, adapting to the shape, size, and processing requirements of different products. It avoids tilting or shaking problems that may be caused by unilateral drive, ensuring the accuracy and flexibility of subsequent processing and improving the versatility and adaptability of the loading equipment.

[0047] Furthermore, the drive assembly includes a drive unit 210, a transmission mounting plate 240, a mounting block, and a lead screw 280 extending vertically. A nut 260 is fixedly connected to the mounting block, and a bearing housing 230 is fixedly connected to the transmission mounting plate 240. The lead screw 280 and the bearing housing 230 are rotatably connected via a bearing. The lead screw 280 and the nut 260 are in a transmission engagement. The output end of the drive unit 210 is coaxially connected to the lead screw 280. Specifically, the drive unit 210 is a motor.

[0048] The drive assembly employs a transmission mechanism consisting of a drive unit 210, a lead screw 280, and a nut 260. The output end of the drive unit 210 is coaxially connected to the lead screw 280, transmitting power to it. Through the transmission mechanism between the lead screw 280 and the nut 260, the power of the drive unit 210 is efficiently converted into linear motion of the adapter block 300, enabling precise up-and-down movement of the mounting block and ensuring the stability and accuracy of subsequent processing. This transmission method offers advantages such as high precision, high efficiency, and smooth transmission, ensuring the positioning platform accurately reaches the loading position, guaranteeing accurate height adjustment of the positioning platform, and ensuring the stability and reliability of the loading equipment. The transmission mounting plate 240 is fixedly connected to the bearing seat 230, and the lead screw 280 is rotatably connected to the bearing seat 230 via a bearing, providing stable support and smooth rotation for the lead screw 280. This reduces vibration and errors during transmission, improves transmission accuracy and efficiency, and thus accurately controls the position and speed of the adapter block 300, extending the service life of the loading equipment.

[0049] In this embodiment, the drive assembly also includes a coupling 220, and the drive unit 210 is connected to the lead screw 280 through the coupling 220.

[0050] Furthermore, the mounting block is fixedly connected to at least one sliding shaft 250, which extends vertically. A linear bearing 290 is fixedly connected to the transmission mounting plate 240. The number of linear bearings 290 is the same as that of the sliding shafts 250, and each linear bearing 290 is in sliding engagement with one sliding shaft 250.

[0051] The sliding shaft 250 fixed to the mounting block and the linear bearing 290 fixed to the transmission mounting plate 240 slide in contact, providing stable guidance for the lifting and lowering movement of the adapter block 300. During the screw and nut transmission process, the movement direction of the adapter block 300 is effectively restricted, ensuring it can only move vertically, reducing swaying and deviation during movement, and further improving the motion accuracy and stability of the feeding equipment. This structure ensures the accurate vertical trajectory of the adapter block 300, providing precise guidance for its up-and-down movement, reducing deviation and swaying during movement, and making the positioning platform's movement more stable and accurate. This ensures the stability and accuracy of the adapter block 300's movement, improves the motion accuracy of the feeding equipment, and further enhances the accuracy of subsequent processing.

[0052] In this embodiment, a first sensor 270 is provided on the main structural frame 100, which is used to detect the position of the adapter block 300. Specifically, the first sensor 270 is provided with a first sensor piece 271 for sensing light occlusion.

[0053] A first sensor 270 is installed on the main structural frame 100 to detect the position of the adapter block 300. This sensor can acquire the position information of the adapter block 300 in real time and feed it back to the control system. Through the feedback from the first sensor 270, the feeding equipment can understand the position information of the adapter block 300 in real time, thereby precisely controlling the movement of the adapter block 300. This ensures that the positioning platform accurately reaches the feeding position, preventing collisions during robotic arm feeding, providing positional assurance for subsequent feeding operations, and preventing feeding errors or equipment collisions caused by inaccurate positioning of the adapter block 300. This improves the accuracy and reliability of subsequent processing. The control system can adjust the drive unit 210 based on this information to ensure that the adapter block 300 accurately reaches the set position, realizing automated and intelligent control of the feeding equipment.

[0054] In this embodiment, the processing at the feeding equipment is a film expansion operation performed on the product.

[0055] For example, the positioning platform is a first platform component 500, which includes a cover plate 510. Two adapter blocks 300 are fixed to the cover plate 510. The positioning element in the first platform component 500 is defined as a feeding block 520. The feeding block 520 is located at the bottom of the cover plate 510 and is used to support the edge of the product.

[0056] In this embodiment, the product is taken as a wafer ring. Specifically, the center of the cover plate 510 is hollowed out to be adjusted according to the size of the chip carried on the corresponding wafer ring.

[0057] The material feeding block 520 of the first platform component 500 is located at the bottom of the cover plate 510, providing stable support for the product's edges and ensuring a stable position for the product during the film expansion process. This also facilitates product loading and positioning, preventing shaking or displacement during operation and guaranteeing the film expansion effect and stability. The above structural design ensures a tight connection between the positioning platform and the adapter block 300. The movement of the adapter block 300 synchronously drives the cover plate 510 and the material feeding block 520, making the product positioning and lifting operations more coordinated and consistent.

[0058] Furthermore, the feeding equipment also includes a film expansion assembly 400, which includes a tension ring 410 and a spring-loaded connecting block 420. The tension ring 410 is located at the top of the main structural frame 100 and surrounds the processing hole. The spring-loaded connecting block 420 is located above the tension ring 410 and is elastically connected to the tension ring 410 via an elastic element 440 extending vertically. A spring-loaded pin 430 extending vertically passes through the spring-loaded connecting block 420. The head of the spring-loaded pin 430 is located above the spring-loaded connecting block 420, and the pin shank of the spring-loaded pin 430 passes through the tension ring 410. The product can be clamped between the head of the spring-loaded pin 430 and the bottom surface of the cover plate 510. Specifically, the elastic element 440 is a telescopic spring.

[0059] The tension ring 410 of the film expansion assembly 400 is arranged around the processing hole to provide support for the film expansion operation. The spring-loaded connecting block 420 is elastically connected to the tension ring 410 via an elastic element 440. The spring-loaded pin 430 passes through the spring-loaded connecting block 420, with its rod passing through the tension ring 410. When the product is clamped between the head of the spring-loaded pin 430 and the bottom surface of the cover plate 510, the elastic force of the elastic element 440 allows the spring-loaded pin 430 to automatically adjust its clamping force according to the different thicknesses of the product, improving the adaptability of the feeding equipment to different products and preventing product misalignment and the peeling of the attached blue film. Simultaneously, during the film expansion process, the tension ring 410 can stretch the adhesive film on the wafer ring to complete the film expansion operation, and the elastic element 440 ensures the stability of the film expansion process.

[0060] The top of the tension ring 410 is provided with a front limiting block 450 extending vertically and a rear clearance hole. The bottom of the cover plate 510 is provided with a rear limiting block 530 extending vertically and a front clearance hole 550. The front limiting block 450 and the front clearance hole 550 are in clearance fit, and the rear clearance hole and the rear limiting block 530 are in clearance fit.

[0061] In this embodiment, the film expansion assembly 400 is detachably connected to the main structural frame 100, and the first platform assembly 500 is detachably connected to the main structural frame 100.

[0062] In this embodiment, a second sensor 540 is provided at the bottom of the cover plate 510. The second sensor 540 is used to detect whether the product is in the loading position. Specifically, the second sensor 540 is provided with a second sensor piece for sensing light occlusion.

[0063] A second sensor 540 is installed at the bottom of the cover plate 510 to detect whether the product is in the feeding position. Only when the product is in the correct position will the feeding equipment perform the subsequent film expansion operation to ensure that the product is accurately placed in the feeding position. This provides the necessary conditions for the subsequent film expansion operation, improves the automation level and feeding accuracy of the feeding equipment, ensures the success rate of the film expansion operation, and avoids problems such as film expansion failure or product damage caused by inaccurate product position.

[0064] When the first sensor 270 detects that the first sensor piece 271 is blocking, it ensures that the feeding position is correct, thereby placing the wafer ring on the feeding block 520. When the second sensor 540 detects that the wafer ring is in the correct position, the drive unit 210 drives the lead screw nut to lower the cover plate 510 to perform film expansion. When the wafer ring contacts multiple spring-loaded pins 430, it is lifted up. Then, the front limit block 450 and the rear limit block 530 will ensure the front and rear directions are limited. It continues to descend until the upper surface of the wafer ring contacts the lower surface of the cover plate 510. Due to the force of the elastic element 440, the wafer ring is fixed to the cover plate 510. Then, the adhesive film on the wafer ring contacts, and the tension ring 410 begins to expand the film.

[0065] In this embodiment, the first sensor 270 can provide real-time position feedback through the encoder to achieve accurate feedback on the position of the adapter block 300.

[0066] Example 2

[0067] like Figure 3 , Figure 4 and Figure 7 As shown, the feeding equipment in this second embodiment is basically the same as that in the first embodiment. The difference is that the positioning platform is the second platform component 600, and the positioning component in the second platform component 600 is defined as a pallet 610. Each pallet 610 is fixed to a transition block 300. A vacuum channel 620 is provided in the pallet 610. The vacuum channel 620 is used to adsorb the edge of the product attached to the surface of the pallet 610.

[0068] In this embodiment, the product is taken as a tray. The top surface of the tray has a groove for storing chips. In this embodiment, the processing at the loading equipment involves fine-tuning the tilt angle of the tray with the product to accommodate the ejector pins. The positioning platform adopts a second platform component 600. The tray 610 has a vacuum channel 620. The product edge, which is attached to the upper surface of the tray 610, is fixed by vacuum adsorption, which can provide a reliable fixing effect and prevent the product from moving or shaking during the posture adjustment process. This ensures the smooth operation of the tilt angle fine-tuning operation and guarantees the stability and quality of the tilt angle fine-tuning operation. At the same time, the separate design of the two trays 610 allows for a certain degree of sway adjustment, thereby eliminating the flatness problem of the tray itself.

[0069] In this embodiment, at least one third sensor 630 is provided at the top of the tray 610. The third sensor 630 is used to detect the relative positional relationship between the tray 610 and the product. Specifically, the third sensor 630 is provided with a third sensor sheet for sensing light occlusion.

[0070] A third sensor 630 is installed at the top of the pallet 610 to detect the relative position between the pallet 610 and the product. This allows for timely detection of whether the product is placed accurately, preventing adsorption failure due to improper product placement. This enables the feeding equipment to monitor the product's position on the pallet 610 in real time, promptly identify and correct any potential positional deviations, and ensure the product's positional accuracy during attitude adjustment. This further improves the accuracy and success rate of fine-tuning the product's tilt angle.

[0071] When the first sensor 270 senses that the first sensor piece 271 is blocked, it can ensure that the feeding position is correct, thereby placing the tray on the pallet 610; when the third sensor 630 detects the positioning information, the vacuum channel 620 opens to fix the tray. At this time, the drive unit 210 drives the lead screw nut to move the pallet 610 to the set position and automatically adjusts the height position of the tray.

[0072] In this embodiment, the first sensor 270 adopts a structure that combines a reading head and a grating ruler, which can provide real-time feedback on the position of the adapter block 300.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A feeding device for processing products, characterized in that, The feeding equipment includes: The main structural frame (100) has a processing hole at the center of the top, which extends vertically. A positioning platform is used to position the product at the loading position. The positioning platform has a positioning component, which is used to position the edge of the product. Two adapter blocks (300) are respectively located on both sides of the main structural frame (100). The adapter blocks (300) can move vertically relative to the main structural frame (100). The positioning platform is connected to the adapter blocks (300).

2. The feeding device according to claim 1, characterized in that, The feeding device also includes two drive components, which are respectively located on both sides of the main structural frame (100), and each drive component is used to drive one of the adapter blocks (300).

3. The feeding device according to claim 2, characterized in that, The drive assembly includes a drive unit (210), a transmission mounting plate (240), a mounting block, and a lead screw (280) extending in a vertical direction. The mounting block is fixedly connected to a nut (260), and the transmission mounting plate (240) is fixedly connected to a bearing seat (230). The lead screw (280) and the bearing seat (230) are rotatably connected by a bearing. The lead screw (280) and the nut (260) are in a transmission engagement. The output end of the drive unit (210) is coaxially connected to the lead screw (280).

4. The feeding device according to claim 3, characterized in that, The mounting block is fixedly connected to at least one sliding shaft (250), which extends in a vertical direction. A linear bearing (290) is fixedly connected to the transmission mounting plate (240). The number of linear bearings (290) is the same as that of the sliding shafts (250), and each linear bearing (290) is in sliding engagement with one of the sliding shafts (250).

5. The feeding device according to claim 1, characterized in that, The main structural frame (100) is provided with a first sensor (270), which is used to detect the position of the adapter block (300).

6. The feeding device according to claim 1, characterized in that, The positioning platform is a first platform component (500), which includes a cover plate (510). Two adapter blocks (300) are fixed to the cover plate (510). The positioning element in the first platform component (500) is defined as a feeding block (520). The feeding block (520) is located at the bottom of the cover plate (510) and is used to support the edge of the product.

7. The feeding device according to claim 6, characterized in that, The feeding device also includes a film expansion assembly (400), which includes a tension ring (410) and a spring-loaded connecting block (420). The tension ring (410) is located on the top of the main structural frame (100) and is arranged around the processing hole. The spring-loaded connecting block (420) is located above the tension ring (410) and is elastically connected to the tension ring (410) through an elastic element (440) extending in the vertical direction. A spring-loaded pin (430) extending in the vertical direction is inserted through the spring-loaded connecting block (420). The head of the spring-loaded pin (430) is located above the spring-loaded connecting block (420), and the pin rod of the spring-loaded pin (430) passes through the tension ring (410). The product can be clamped between the head of the spring-loaded pin (430) and the bottom surface of the cover plate (510).

8. The feeding device according to claim 6, characterized in that, The bottom end of the cover plate (510) is provided with a second sensor (540), which is used to detect whether the product is located at the loading position.

9. The feeding device according to claim 1, characterized in that, The positioning platform is a second platform component (600), and the positioning element in the second platform component (600) is defined as a tray (610). Each tray (610) is fixed to a transition block (300). A vacuum channel (620) is provided in the tray (610), and the vacuum channel (620) is used to adsorb the edge of the product that is attached to the upper surface of the tray (610).

10. The feeding device according to claim 9, characterized in that, The top of the tray (610) is provided with at least one third sensor (630), which is used to detect the relative positional relationship between the tray (610) and the product.

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