An adjustable thick film printing material feeding mechanism
By adopting the coordinated design of transmission devices, clamping components and output components in the thick film printing and cutting mechanism, the product damage problem of traditional cutting mechanism when facing material skew or displacement abnormality is solved, and automatic adjustment is achieved, improving the cutting efficiency and quality.
Patent Information
- Application Number
- CN202421402111.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-19
AI Technical Summary
When the traditional thick film printing and cutting mechanism faces the material skewed or displaced abnormally, it is easy to cause the product to break or damage, and the adjustment process requires manual operation, which is complex in operation and unstable in accuracy.
An adjustable thick film printing and cutting mechanism is designed, using transmission device, clamping assembly and output assembly to work together to achieve precise clamping and positioning of thick film materials, and improve accuracy and efficiency through automated adjustment processes.
It improves the cutting efficiency and quality of thick film materials, reduces interference from human factors, enhances the versatility and flexibility of the equipment, and ensures the precise treatment of materials of different specifications and thicknesses.
Smart Images

Figure CN222699486U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thick film printing, in particular to an adjustable thick film printing blanking mechanism. Background Art
[0002] With the continuous development of modern industrial technology, thick film printing technology has become one of the key processes in the manufacture of chip resistors and chip circuit devices. Thick film printing quality plays a very important role in product quality and reliability. Thick film printing technology is a special printing process, which is mainly used in fields with high requirements on the thickness of printing materials, such as electronic components, ceramic circuits, etc. This technology uses special thick film conductor slurry, resistor slurry, dielectric slurry, ink and other printing slurries and printing equipment to print patterns, texts, etc. directly on ceramic or silicon wafer substrates to form the required circuits or graphics. Since ceramic or silicon wafer substrates are easily damaged by external forces, the entire operation process has high requirements on the accuracy, stability and reliability of the equipment.
[0003] For example, Chinese patent CN201620441463.6 discloses a photovoltaic solar cell silicon wafer printing unloading mechanism, which conveys the printed cells in the printing equipment to the empty battery holders in the battery holder positioning mechanism for storage through the battery holder unloading conveyor device. The battery holder positioning mechanism inserts and stores the cells layer by layer through intermittent rising. When the battery holder is full of cells, it is output to the designated position by the battery holder unloading conveyor device. The utility model realizes fully automatic unloading of cells, avoids manual unloading, has a fast unloading speed, and has a low cell damage rate, thereby improving the quality of the finished product.
[0004] However, in the traditional thick film printing process, fixed or simple adjustable designs are usually used, although they can meet the full automatic unloading of materials under normal conditions. In the actual thick film printing production process, due to the skew of the material on the conveyor belt, or the abnormal displacement of the next material, the up and down movement of the receiving bin will cause the product to break or the entire material to be damaged. In addition, the adjustment process of the traditional unloading mechanism usually requires manual operation, which is not only complicated to operate, but also easy to cause unstable adjustment accuracy due to human factors.
[0005] Based on this, the utility model designs an adjustable thick film printing material feeding mechanism to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an adjustable thick film printing blanking mechanism.
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] An adjustable thick film printing unloading mechanism comprises a workbench, a transmission device, a clamping assembly and an output assembly, wherein the top of the workbench is provided with a transmission device, the bottom of the transmission device is connected with a clamping assembly, the right side of the clamping assembly is provided with an output assembly, the output assembly comprises a mounting frame and a belt conveying mechanism, and the top of the mounting frame is fixedly provided with a belt conveying mechanism;
[0009] The transmission device comprises a vertical transmission assembly, a connecting plate and a bottom plate, wherein the front side of the vertical transmission assembly is slidably connected with the connecting plate, the bottom of the connecting plate is fixedly connected with the bottom plate, and the bottom plate is arranged directly below the vertical transmission assembly;
[0010] The clamping assembly comprises a clamping guide rail and a sliding block. The clamping guide rail is fixedly installed at the bottom of the base plate, and two sliding blocks that move relatively are slidably connected to the clamping guide rail.
[0011] Furthermore, a conveying guide rail is fixedly installed on the top of the workbench, and a storage plate is slidably connected to the top of the conveying guide rail, and the storage plate corresponds to the clamping assembly;
[0012] Furthermore, a mounting hole is provided at the center of the top of the storage plate, and an electric push rod is fixedly installed inside the mounting hole;
[0013] Furthermore, the transmission device also includes a fixed frame, a horizontal transmission assembly and a mounting plate, the front side of the fixed frame is fixedly mounted with the horizontal transmission assembly, the top of the front side of the fixed frame is fixedly mounted with a plurality of stop sensors, the front side of the horizontal transmission assembly is slidably connected with the mounting plate, and the front side of the mounting plate is fixedly mounted with the vertical transmission assembly;
[0014] Furthermore, the horizontal transmission assembly and the vertical transmission assembly have the same structure, and support plates are fixedly connected to the left and right sides of the angle between the connecting plate and the bottom plate;
[0015] Furthermore, the clamping assembly further comprises a clamping portion and a pressing portion, and two of the clamping portions and the pressing portion are provided, the two clamping portions are respectively fixedly mounted on the bottom of the two sliding blocks, and the two pressing portions are symmetrically arranged on the left and right sides of the clamping guide rail;
[0016] Furthermore, the clamping part includes a connecting block, a limiting rod, a grab plate, a gripper and a protective pad. The connecting block is fixedly connected to the bottom of the slider, the limiting rods are fixedly connected to the left and right sides of the connecting block, the side of the connecting block away from the clamping guide rail is fixedly connected to the gripper, the edge of the gripper away from the clamping guide rail is fixedly connected to the gripper, and the inner side wall of the gripper and the gripper is fixedly connected to the protective pad.
[0017] Furthermore, the clamping part includes a fixed block, a connecting rod, a pressure plate, a sliding rod, a buffer spring, a pressure block and a protective pad 2. The fixed block is fixedly connected to the bottom plate, the bottom of the fixed block is fixedly connected to the connecting rod, the bottom of the connecting rod is provided with a pressure plate, the top of the pressure plate is fixedly connected to the sliding rod, the sliding rod is slidably connected in the connecting rod, a buffer spring is sleeved on the outer wall of the sliding rod, both ends of the bottom of the pressure plate are fixedly connected to the pressure blocks, and the bottom of the pressure block is fixedly connected to the protective pad 2.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1. The utility model sets a transmission device, a clamping assembly and an output assembly to cooperate with each other, and uses the transmission device to drive the clamping assembly to move in the horizontal and vertical directions to achieve accurate clamping and positioning of thick film materials, and transports the clamped thick film materials to the next process through the output assembly, thereby improving efficiency. At the same time, the adjustment process of the clamping assembly has a high degree of automation, which reduces the interference of human factors and improves the stability of the adjustment accuracy.
[0020] 2. The utility model makes the clamping more stable by setting the clamping part and the pressing part of the clamping assembly. At the same time, the setting of the protective pad 1 and the protective pad 2 effectively avoids damage to the thick film material during the clamping process, thereby improving the quality of the printed product. In addition, the transmission device adopts a combination of a vertical transmission assembly and a horizontal transmission assembly to achieve the free movement of the clamping assembly in three-dimensional space, so that it can adapt to thick film materials of different specifications and thicknesses, thereby improving the versatility and flexibility of the equipment.
[0021] 3. The utility model is provided with an electric push rod, and through the extension and retraction of the electric push rod, the workpiece placed on the top of the storage plate can be pushed upward, thereby adjusting the height of the workpiece placed on the storage plate, which is convenient for the clamping component to clamp, so that the thick film material on the storage plate can be automatically pushed to the bottom of the clamping component during the clamping process, further improving the degree of automation and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0023] Figure 1 It is a three-dimensional diagram of an adjustable thick film printing blanking mechanism of the utility model;
[0024] Figure 2It is a cross-sectional view of a storage plate in an adjustable thick film printing blanking mechanism of the utility model;
[0025] Figure 3 It is a three-dimensional diagram of a clamping component in an adjustable thick film printing blanking mechanism of the utility model;
[0026] Figure 4 It is a three-dimensional diagram of the clamping part of an adjustable thick film printing blanking mechanism of the utility model;
[0027] Figure 5 It is a three-dimensional diagram of the pressing part in an adjustable thick film printing blanking mechanism of the utility model;
[0028] The numbers in the figure represent:
[0029] 1. Workbench; 11. Conveying guide rail; 12. Storage plate; 121. Mounting hole; 122. Electric push rod; 2. Transmission device; 21. Fixed frame; 22. Horizontal transmission assembly; 23. Mounting plate; 24. Vertical transmission assembly; 25. Connecting plate; 26. Bottom plate; 27. Support plate; 3. Clamping assembly; 31. Clamping guide rail; 32. Sliding block; 33. Clamping part; 331. Connecting block; 332. Limiting rod; 333. Grabbing plate; 334. Gripping hand; 335. Protective pad 1; 34. Pressing part; 341. Fixed block; 342. Connecting rod; 343. Pressing plate; 344. Sliding rod; 345. Buffer spring; 346. Pressing block; 347. Protective pad 2; 4. Output assembly; 41. Mounting frame; 42. Belt conveying mechanism; 5. Stop sensor. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] The terms “left”, “right”, “front”, “back”, “upper” and “lower” mentioned in the following description are oriented in the viewing direction of the stereoscopic image.
[0032] In some embodiments, please refer to the attached instructions. Figure 1-5, an adjustable thick film printing unloading mechanism, comprising a workbench 1, a transmission device 2, a clamping assembly 3 and an output assembly 4, the top of the workbench 1 is provided with a transmission device 2, the bottom of the transmission device 2 is connected with the clamping assembly 3, the right side of the clamping assembly 3 is provided with the output assembly 4, the output assembly 4 comprises a mounting frame 41 and a belt conveying mechanism 42, the top of the mounting frame 41 is fixedly provided with a belt conveying mechanism 42, the belt conveying mechanism 42 adopts a mature structure of the existing technology, the workpiece is clamped by the clamping assembly 3 and placed on the belt conveying mechanism 42, and the workpiece is conveyed to the next process for subsequent processing through the transmission of the belt conveying mechanism 42;
[0033] The transmission device 2 includes a vertical transmission assembly 24, a connecting plate 25 and a bottom plate 26. The front side of the vertical transmission assembly 24 is slidably connected to the connecting plate 25, and the bottom of the connecting plate 25 is fixedly connected to the bottom plate 26. The bottom plate 26 is arranged directly below the vertical transmission assembly 24.
[0034] The clamping assembly 3 includes a clamping guide rail 31 and a slider 32. The clamping guide rail 31 is fixedly installed at the bottom of the base plate 26. Two sliders 32 that can move relative to each other are slidably connected to the clamping guide rail 31. When the slider 32 slides on the clamping guide rail 31, the limit block can prevent the slider 32 from falling off the clamping guide rail 31, thereby ensuring the safe operation of the device. A slide groove matching the clamping guide rail 31 is provided inside the slider 32. Through the cooperation of the slide groove and the clamping guide rail 31, the slider 32 can slide more smoothly on the clamping guide rail 31, thereby improving the clamping accuracy of the clamping assembly 3.
[0035] Furthermore, a conveying guide rail 11 is fixedly installed on the top of the workbench 1, and a placing plate 12 is slidably connected to the top of the conveying guide rail 11. The placing plate 12 corresponds to the clamping assembly 3. After the workpiece is placed on the placing plate 12 and the printing operation is completed, the printed workpiece is transported to the bottom of the clamping assembly 3 through the conveying guide rail 11. The clamping assembly 3 moves under the drive of the transmission device 2 to clamp the workpiece placed on the placing plate 12 and place it on the output assembly 4, thereby realizing automatic unloading of the workpiece and improving work efficiency.
[0036] Furthermore, a mounting hole 121 is opened at the center position of the top of the storage plate 12, and an electric push rod 122 is fixedly installed inside the mounting hole 121. Through the extension and retraction of the electric push rod 122, the workpiece placed on the top of the storage plate 12 can be pushed upward, thereby adjusting the height of the workpiece placed on the storage plate 12, making it easier for the clamping assembly 3 to clamp and improving the working efficiency of the device.
[0037] Furthermore, the transmission device 2 also includes a fixed frame 21, a horizontal transmission component 22 and a mounting plate 23. The fixed frame 21 can be fixedly installed on the frame or workbench of the thick film printing machine according to installation requirements to provide stable support for the entire transmission device 2. The front side of the fixed frame 21 is fixedly installed with a horizontal transmission component 22, and the top of the front side of the fixed frame 21 is fixedly installed with a plurality of stop sensors 5. The stop sensor 5 adopts a photoelectric sensor. By reasonably arranging the position of the stop sensor 5, when the workpiece reaches a predetermined position, the stop sensor 5 can sense the workpiece and stop the movement of the clamping component 3, thereby further improving the positioning accuracy and the blanking accuracy. The front side of the horizontal transmission component 22 is slidably connected with the mounting plate 23, and the front side of the mounting plate 23 is fixedly installed with a vertical transmission component 24. The horizontal position of the mounting plate 23 is controlled by setting the horizontal transmission component 22, and the vertical position of the connecting plate 25 is controlled by setting the vertical transmission component 24. The horizontal transmission component 22 and the vertical transmission component 24 cooperate with each other to realize precise control of the clamping component 3 in three-dimensional space to meet the blanking requirements of workpieces of different sizes and shapes.
[0038] Furthermore, the horizontal transmission assembly 22 and the vertical transmission assembly 24 have the same structure. The horizontal transmission assembly 22 and the vertical transmission assembly 24 are provided with a screw, a movable block, a servo motor and a coupling. The servo motor is used to drive the screw to rotate, and then drive the movable block to slide on the screw, so as to control the position of the mounting plate 23 in the horizontal direction, and control the position of the connecting plate 25 in the vertical direction, and then control the position of the clamping assembly 3, so that the clamping assembly 3 can clamp the workpiece at any position on the storage plate 12 and move it to the belt conveyor mechanism 42 of the output assembly 4, thereby realizing accurate positioning and unloading of the workpiece. The left and right sides of the angle between the connecting plate 25 and the bottom plate 26 are fixedly connected with a support plate 27. The support plate 27 can be used to enhance the structural strength between the connecting plate 25 and the bottom plate 26, improve the stability and reliability of the entire device, and ensure that no deformation or loosening occurs during high-speed operation and clamping of heavy objects, thereby ensuring the stability and accuracy of the device.
[0039] Furthermore, the clamping assembly 3 also includes a clamping part 33 and a pressing part 34. Two clamping parts 33 and two pressing parts 34 are provided. The two clamping parts 33 are respectively fixedly installed at the bottom of the two sliders 32, and the two pressing parts 34 are symmetrically arranged on the left and right sides of the clamping guide rail 31. The two symmetrically arranged clamping parts 33 are used to clamp the workpiece under the drive of the clamping guide rail 31 and the slider 32, and the workpiece is pressed on the top of the workpiece by the two pressing parts 34, thereby ensuring the stability and accuracy of the workpiece during the transmission process.
[0040] Furthermore, the clamping portion 33 includes a connecting block 331, a limiting rod 332, a gripping plate 333, a gripping hand 334 and a protective pad 335. The connecting block 331 is fixedly connected to the bottom of the slider 32, the limiting rod 332 is fixedly connected to the left and right sides of the connecting block 331, the side of the connecting block 331 away from the clamping guide rail 31 is fixedly connected to the gripping plate 333, the edge of the gripping plate 333 away from the clamping guide rail 31 is fixedly connected to the gripping hand 334, and the gripping plate 333 and the gripping hand 334 are fixedly connected. A protective pad 335 is fixedly connected to the inner wall of 4, and the connecting block 331 clamps the workpiece through the driving of the clamping guide rail 31 and the slider 32, and adjusts the clamping force between the gripping plate 333 and the gripping hand 334 and the workpiece to meet the clamping requirements of workpieces of different sizes and shapes. At the same time, the protective pad 335 arranged on the inner side of the gripping plate 333 and the gripping hand 334 can prevent the gripping plate 333 and the gripping hand 334 from causing damage to the workpiece when clamping the workpiece, thereby improving the yield rate of the workpiece.
[0041] Furthermore, the pressing part 34 includes a fixed block 341, a connecting rod 342, a pressure plate 343, a sliding rod 344, a buffer spring 345, a pressure block 346 and a protective pad 347. The fixed block 341 is fixedly connected to the bottom plate 26, the bottom of the fixed block 341 is fixedly connected to the connecting rod 342, the bottom of the connecting rod 342 is provided with a pressure plate 343, the top of the pressure plate 343 is fixedly connected to the sliding rod 344, the sliding rod 344 is slidably connected in the connecting rod 342, the outer wall of the sliding rod 344 is sleeved with a buffer spring 345, and both ends of the bottom of the pressure plate 343 are fixedly connected. A pressure block 346 is connected, and a protective pad 347 is fixedly connected to the bottom of the pressure block 346. The setting of the protective pad 347 can prevent the pressure block 346 from causing damage to the workpiece when pressing the workpiece, thereby protecting the quality of the workpiece. At the same time, one end of the buffer spring 345 is fixedly connected to the bottom of the connecting rod 342, and the other end of the buffer spring 345 is fixedly connected to the top of the pressure plate 343. By utilizing the elastic force of the buffer spring 345, the pressure block 346 can have a certain buffering effect when pressing the workpiece, thereby avoiding excessive impact force on the workpiece and improving the service life and stability of the device.
[0042] The working principle of the utility model is as follows: first, after the workpiece is placed on the placement plate 12 and the printing operation is completed, the printed workpiece is transported to the bottom of the clamping assembly 3 through the conveying guide rail 11. At this time, the transmission device 2 starts to work, and the horizontal transmission assembly 22 and the vertical transmission assembly 24 work together to drive the mounting plate 23 and the connecting plate 25 to move accurately in three-dimensional space, so that the clamping assembly 3 moves to the top of the workpiece. The gripper 334 of the clamping part 33, driven by the clamping guide rail 31 and the slider 32, tightly clamps the workpiece, and at the same time, the pressing block 346 of the pressing part 34 presses the workpiece to ensure the stability and accuracy of the workpiece during the transmission process. Subsequently, the transmission device 2 works again to drive the clamping assembly 3 to clamp the workpiece. The workpiece moves to the belt conveyor mechanism 42 of the output component 4. When the workpiece reaches the predetermined position, the stop sensor 5 will sense the workpiece and stop the movement of the clamping component 3 to ensure that the workpiece can be accurately placed on the belt conveyor mechanism 42. Finally, the belt conveyor mechanism 42 sends the workpiece out of the device to complete the entire automatic unloading process. During the entire process, due to the setting of the clamping component 3 and the clamping part 34, the stability and accuracy of the workpiece during transmission can be ensured, and the work efficiency and yield rate can be improved. By accurately controlling the position and clamping force of the clamping component 3 and clamping the workpiece through the clamping part 34, accurate positioning and unloading of the workpiece are achieved, which improves the work efficiency and yield rate and reduces the production cost.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An adjustable thick film printing unloading mechanism, comprising a workbench (1), a transmission device (2), a clamping assembly (3) and an output assembly (4), characterized in that: A transmission device (2) is arranged on the top of the workbench (1); a clamping assembly (3) is connected to the bottom of the transmission device (2); an output assembly (4) is arranged on the right side directly below the clamping assembly (3); the output assembly (4) comprises a mounting frame (41) and a belt conveying mechanism (42); and the belt conveying mechanism (42) is fixedly mounted on the top of the mounting frame (41); The transmission device (2) comprises a vertical transmission assembly (24), a connecting plate (25) and a bottom plate (26); the front side of the vertical transmission assembly (24) is slidably connected to the connecting plate (25); the bottom of the connecting plate (25) is fixedly connected to the bottom plate (26); and the bottom plate (26) is arranged directly below the vertical transmission assembly (24); The clamping assembly (3) comprises a clamping guide rail (31) and a slider (32); the clamping guide rail (31) is fixedly mounted on the bottom of the base plate (26); and two sliders (32) are slidably connected to the clamping guide rail (31) and are movable relative to each other.
2. The adjustable thick film printing blanking mechanism according to claim 1 is characterized in that: A conveying guide rail (11) is fixedly mounted on the top of the workbench (1), and a storage plate (12) is slidably connected to the top of the conveying guide rail (11), and the storage plate (12) corresponds to the clamping assembly (3).
3. The adjustable thick film printing blanking mechanism according to claim 2 is characterized in that: A mounting hole (121) is provided at the center of the top of the storage plate (12), and an electric push rod (122) is fixedly installed inside the mounting hole (121).
4. The adjustable thick film printing blanking mechanism according to claim 1, characterized in that: The transmission device (2) further comprises a fixed frame (21), a horizontal transmission assembly (22) and a mounting plate (23); the horizontal transmission assembly (22) is fixedly mounted on the front side of the fixed frame (21); a plurality of stop sensors (5) are fixedly mounted on the top of the front side of the fixed frame (21); the front side of the horizontal transmission assembly (22) is slidably connected to the mounting plate (23); and the front side of the mounting plate (23) is fixedly mounted with a vertical transmission assembly (24).
5. The adjustable thick film printing blanking mechanism according to claim 4 is characterized in that: The horizontal transmission assembly (22) and the vertical transmission assembly (24) have the same structure, and support plates (27) are fixedly connected to the left and right sides of the angle between the connecting plate (25) and the bottom plate (26).
6. The adjustable thick film printing blanking mechanism according to claim 1, characterized in that: The clamping assembly (3) further comprises a clamping portion (33) and a pressing portion (34), wherein two clamping portions (33) and two pressing portions (34) are provided, the two clamping portions (33) are respectively fixedly mounted on the bottom of the two sliding blocks (32), and the two pressing portions (34) are symmetrically arranged on the left and right sides of the clamping guide rail (31).
7. The adjustable thick film printing blanking mechanism according to claim 6, characterized in that: The clamping portion (33) comprises a connecting block (331), a limiting rod (332), a grab plate (333), a gripper (334) and a protective pad (335); the connecting block (331) is fixedly connected to the bottom of the slider (32); the limiting rod (332) is fixedly connected to the left and right sides of the connecting block (331); the gripper (333) is fixedly connected to the side of the connecting block (331) away from the clamping guide rail (31); the gripper (334) is fixedly connected to the edge of the gripper (333) away from the clamping guide rail (31); and the protective pad (335) is fixedly connected to the inner side walls of the gripper (333) and the gripper (334).
8. The adjustable thick film printing blanking mechanism according to claim 7, characterized in that: The clamping part (34) includes a fixed block (341), a connecting rod (342), a pressure plate (343), a sliding rod (344), a buffer spring (345), a pressure block (346) and a second protective pad (347). The fixed block (341) is fixedly connected to the bottom plate (26). The bottom of the fixed block (341) is fixedly connected to the connecting rod (342). The bottom of the connecting rod (342) is provided with a pressure plate (343). The top of the pressure plate (343) is fixedly connected to the sliding rod (344). The sliding rod (344) is slidably connected in the connecting rod (342). The outer wall of the sliding rod (344) is sleeved with a buffer spring (345). Both ends of the bottom of the pressure plate (343) are fixedly connected to pressure blocks (346). The bottom of the pressure block (346) is fixedly connected to the second protective pad (347).
Citation Information
Patent Citations
Photovoltaic solar cell silicon chip printing unloading mechanism
CN205602667U