Chip mounting device

Abstract

The utility model relates to a chip mounting device. The chip mounting device comprises a rack, a winding and unwinding mechanism, a chip stripping mechanism and a chip taking mechanism, and the winding and unwinding mechanism, the chip stripping mechanism and the chip taking mechanism are all arranged on the rack; the stripping mechanism comprises a stripping platform and a placing platform, the stripping platform and the placing platform are arranged at an interval, and a stripping gap for a material belt to pass through is formed; the winding and unwinding mechanism is used for releasing a material belt attached with a sheet, the winding and unwinding mechanism can drive the material belt to be conveyed, sequentially pass through the sheet stripping platform and the sheet stripping gap and then are conveyed to the bottom side of the sheet stripping platform, in the process that the material belt moves towards the sheet stripping gap, the sheet is stripped from the material belt, and the sheet moves towards the placing platform from the sheet stripping platform. The winding and unwinding mechanism is further used for winding the stripped material belt. The sheet taking mechanism is used for sucking the sheets on the placing platform, and the sheet taking mechanism drives the sheets to move and carry out sheet pasting. According to the chip mounting device, the production efficiency can be improved, and materials can be saved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a chip mounting device. Background Art

[0002] In the manufacturing process of some products, a chip mounting device is required to mount chips on the products for protection, identification, etc. Taking the battery cell as an example, it is necessary to use a chip mounting device to attach insulating sheets between the battery cells to reduce the risk of short circuit between the battery cells, improve the reliability of the battery cells, and at the same time, the insulating sheets can also prevent the battery cells from being damaged by external forces and play a role in protecting the battery cells.

[0003] For traditional chip mounting devices, frequent loading is required, which affects the time utilization rate of the battery production line and reduces the efficiency of the battery production line. Therefore, how to provide a chip mounting device that can improve efficiency has become an urgent problem to be solved. Summary of the Utility Model

[0004] Based on this, in view of the above problems, it is necessary to provide a chip mounting device that can improve efficiency.

[0005] A chip mounting device, the chip mounting device includes a frame, a winding and unwinding mechanism, a peeling mechanism and a chip picking mechanism, and the winding and unwinding mechanism, the peeling mechanism and the chip picking mechanism are all arranged on the frame;

[0006] The peeling mechanism includes a peeling platform and a placement platform, the peeling platform and the placement platform are arranged at intervals, and a peeling gap for the supply tape to pass through is formed;

[0007] The winding and unwinding mechanism is used to release the supply tape attached with the sheet material, and the winding and unwinding mechanism can drive the supply tape to transmit and sequentially pass through the peeling platform and the peeling gap and then transfer to the bottom side of the peeling platform. During the movement of the supply tape towards the peeling gap, the sheet material is peeled off from the supply tape, and the sheet material moves from the peeling platform to the placement platform. The winding and unwinding mechanism is also used to wind up the peeled supply tape; the chip picking mechanism is used to pick up the sheet material on the placement platform, and the chip picking mechanism drives the sheet material to move and perform chip mounting.

[0008] In some embodiments, a first positioning block and a second positioning block are formed on the placement platform. The first positioning block is arranged along the direction in which the sheet material moves towards the placement platform, and the second positioning block is arranged at intervals on both sides opposite to the first positioning block along a direction intersecting with the direction in which the sheet material moves towards the placement platform, and the first positioning block and the second positioning block jointly define a positioning area for positioning the sheet material.

[0009] In some embodiments, the surface of the placement platform for placing the sheet material is coated with an anti-adhesive coating.

[0010] In some of these embodiments, the flaking mechanism further includes a first detection member for detecting the thickness of the strip before the strip enters the flaking platform to determine whether there is a sheet on the strip; and / or

[0011] The flaking mechanism further includes a second detection member for detecting whether the sheet is peeled off to the placement platform, and the sheet taking mechanism is used to suck the sheet after the sheet is peeled off to the placement platform.

[0012] In some of these embodiments, a rejection mechanism is further included. The rejection mechanism is disposed on the sheet taking mechanism and is used to reject the waste on the sheet when the sheet taking mechanism presses the sheet against the placement platform.

[0013] In some of these embodiments, the sheet taking mechanism includes a vacuum chuck. The vacuum chuck is an annular chuck and has a central hole;

[0014] The rejection mechanism includes a rejection driving member and a rejection push rod. The rejection driving member is in transmission connection with the rejection push rod, and the rejection push rod passes through the central hole of the vacuum chuck and can protrude from the vacuum chuck under the action of the rejection driving member to knock off the waste on the sheet.

[0015] In some of these embodiments, the rewinding and unwinding mechanism includes an unwinding assembly, an unwinding driving assembly and a winding assembly. The unwinding assembly is located upstream of the flaking mechanism and is used to release the strip with the sheet attached. The winding assembly is located downstream of the flaking mechanism and is used to wind the strip after flaking. The unwinding driving assembly is located between the flaking mechanism and the winding assembly and is used to drive the strip to transmit.

[0016] In some of these embodiments, the unwinding driving assembly includes an unwinding driving member, an unwinding roller and a pressing roller. The unwinding roller and the pressing roller are distributed on opposite sides of the strip in the thickness direction of the strip, and the pressing roller presses the strip against the unwinding roller. The unwinding driving member is in transmission connection with the unwinding roller and is used to drive the unwinding roller to drive the strip to transmit.

[0017] In some of these embodiments, the rewinding and unwinding mechanism further includes an unwinding tension adjusting assembly located between the unwinding assembly and the flaking mechanism and used to adjust the unwinding tension; and / or

[0018] The rewinding and unwinding mechanism further includes a winding tension adjusting assembly located between the flaking mechanism and the winding assembly and used to adjust the winding tension.

[0019] In some embodiments, the unwinding mechanism further includes a tension isolating component, which is located between the unwinding tension adjusting component and the stripping mechanism and is used to isolate the unwinding tension and the stripping tension when the stripping mechanism strips.

[0020] In some embodiments, the patch device further includes a visual detection mechanism and a control mechanism, wherein the visual detection mechanism is disposed on the frame and electrically connected to the control mechanism;

[0021] The sheet picking mechanism includes a vacuum suction cup, and the visual inspection mechanism is used to take a picture of the vacuum suction cup and the sheet after the vacuum suction cup absorbs the sheet. The control mechanism obtains the relative position between the vacuum suction cup and the sheet based on the image taken by the visual inspection mechanism, and corrects the patch position of the sheet based on the relative position. The control mechanism determines whether the sheet is qualified based on the image taken by the visual inspection mechanism, and controls the vacuum suction cup to pick up the sheet again if the sheet is unqualified.

[0022] The above-mentioned patch device, by designing a reeling and unreeling mechanism and using a coiled material to feed the sheet material, can increase the number of sheets stored and reduce the frequency of loading, thereby helping to improve the time utilization rate of the production line and achieve higher production efficiency. In addition, the sheet and the material strip can be automatically peeled off during the process of unwinding and rewinding the coil material, and then passing through the stripping platform and the stripping gap to the bottom side of the stripping platform. This method can use thin sheets and material strips, which is conducive to saving materials. Moreover, the automatic stripping of the sheet and the material strip ensures that the force on each part of the sheet during the stripping process is more balanced, reducing the problems of wrinkling and warping of the sheet, thereby achieving efficient and stable patching. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a patch device in one embodiment of the present application;

[0024] Figure 2 for Figure 1 a right side view of the patch device shown;

[0025] Figure 3 for Figure 1 A top view of the patch device shown;

[0026] Figure 4 for Figure 1 A rear view of the patch device is shown;

[0027] Figure 5 for Figure 1 A front view of a peeling mechanism in the patch device shown;

[0028] Figure 6 for Figure 5A left side view of the peeling mechanism in the patch device shown;

[0029] Figure 7 for Figure 5 A top view of a peeling mechanism in the patch device shown;

[0030] Figure 8 for Figure 1 The left side view of the patch device shown is when the sheet removal mechanism cooperates with the rejection mechanism and the vacuum suction cup rotates outward and cannot absorb the sheet;

[0031] Figure 9 for Figure 8 The left side view of the film taking mechanism and the rejecting mechanism shown;

[0032] Figure 10 for Figure 1 The left side view of the patch device is shown, in which the sheet picking mechanism cooperates with the rejection mechanism, and the vacuum suction cup rotates downward and is able to absorb the sheet;

[0033] Figure 11 for Figure 1 A front view of the visual inspection mechanism in the patch device shown;

[0034] Figure 12 for Figure 11 Left side view of the visual inspection mechanism shown.

[0035] Figure Number:

[0036] 1. SMT device; 2. Battery cell; 3. Coil; 4. Sheet; 401. Hollow area; 5. Material strip;

[0037] 10. Frame; 20. Rewinding and unwinding mechanism; 30. Stripping mechanism; 40. Sheet taking mechanism; 50. Rejecting mechanism; 60. Visual inspection mechanism; 70. Waste collection mechanism; 80. Sheet collection mechanism;

[0038] 21. Unwinding assembly; 211. Unwinding shaft; 212. Damper; 22. Unwinding drive assembly; 221. Unwinding roller; 222. Pressure roller; 23. Rewinding assembly; 231. Rewinding shaft; 24. Unwinding tension adjustment assembly; 241. Unwinding tension drive; 242. Unwinding tension roller; 25. Rewinding tension adjustment assembly; 251. Rewinding tension roller; 26. Tension barrier assembly; 261. Barrier block; 262. Pressure block; 263. Barrier drive; 27. Transition roller assembly; 271. Transition roller;

[0039] 31. Peeling platform; 311. Output end; 32. Placement platform; 321. First positioning block; 322. Second positioning block; 33. First detection member; 34. Second detection member; 35. Peeling gap;

[0040] 41. Vacuum suction cup; 42. Lifting cylinder; 43. Longitudinal cylinder; 44. Transverse motor; 45. Transverse drive gear; 46. Transverse drive rack; 47. Rotary drive motor; 48. Rotary mounting plate;

[0041] 51. Rejection push rod; 52. Rejection drive member;

[0042] 61. Camera; 62. Light source. Specific embodiments

[0043] To make the above objects, features, and advantages of the present application more apparent and understandable, the following detailed description of the specific embodiments of the present application will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 of the present application.

[0045] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0046] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0047] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0049] Please refer to Figure 1 and Figure 7 , this application provides a patch device 1 for pasting a sheet 4 onto a to-be-patched component. Among them, the sheet 4 can be an insulating sheet or other sheet materials, and the to-be-patched component can be a battery cell 2 or other components, which are not specifically limited here. For the convenience of description, the following embodiments will take the sheet 4 as an insulating sheet and the to-be-patched component as a battery cell 2 as an example for illustration.

[0050] Please refer to again Figures 1 to 5 , and Figure 7 , the patch device has a patching station. The patch device 1 includes a frame 10, a winding and unwinding mechanism 20, a sheet peeling mechanism 30, a sheet picking mechanism 40, a rejection mechanism 50, a vision inspection mechanism 60 and a control mechanism. The winding and unwinding mechanism 20, the sheet peeling mechanism 30, the sheet picking mechanism 40, the vision inspection mechanism 60 and the control mechanism are all arranged on the frame 10. The rejection mechanism 50 is arranged on the sheet picking mechanism 40, and the winding and unwinding mechanism 20, the sheet peeling mechanism 30, the sheet picking mechanism 40, the rejection mechanism 50 and the vision inspection mechanism 60 are all electrically connected to the control mechanism.

[0051] The peeling mechanism 30 includes a peeling platform 31 and a placement platform 32. The peeling platform 31 and the placement platform 32 are arranged at intervals, and a peeling gap 35 for the feeding tape 5 to pass through is formed. The winding and unwinding mechanism 20 is used to release the tape 5 with the sheet 4 attached, and the winding and unwinding mechanism 20 can drive the tape 5 to transmit and pass through the peeling platform 31 and the peeling gap 35 in sequence and then transfer to the bottom side of the peeling platform 31. During the movement of the tape 5 towards the peeling gap 35, the sheet 4 is peeled off from the tape 5, and the sheet 4 moves from the peeling platform 31 to the placement platform 32. The winding and unwinding mechanism 20 is also used to wind the peeled tape 5. The sheet picking mechanism 40 is used to pick up the sheet 4 on the placement platform 32, and the sheet picking mechanism 40 drives the sheet 4 to move and perform patchwork. Specifically, the sheet picking mechanism 40 drives the sheet 4 to move to the patching station for patching. The rejection mechanism 50 is used to reject the waste on the sheet 4 when the sheet picking mechanism 40 presses the sheet 4 against the placement platform 32. The vision inspection mechanism 60 is used to take pictures of the sheet picking mechanism 40 and the sheet 4 and feed them back to the control mechanism to judge whether the sheet 4 is qualified and correct the patching position of the sheet 4. The control mechanism is used to control the operation of the winding and unwinding mechanism 20, the peeling mechanism 30, the sheet picking mechanism 40, the rejection mechanism 50 and the vision inspection mechanism 60. The winding and unwinding mechanism 20, the peeling mechanism 30, the sheet picking mechanism 40, the rejection mechanism 50, the vision inspection mechanism 60 and the control mechanism cooperate together to achieve automatic patching.

[0052] In a traditional chip mounter, a sheet material (including a sheet and a base material, with the sheet adhered to the base material) is clamped by a magazine and fed in a stacked manner. The feeding quantity is affected by the strength of the sheet material and the stacking method. Each magazine can feed approximately 600 sheets at a time. In a battery production line with a production rate of 20 ppm, the sheet material needs to be manually loaded every 0.5 hours on average, which affects the time utilization rate of the production line, results in low production efficiency of the production line, and causes waste of manpower. In addition, in a traditional chip mounter, the sheet materials are stacked. A lifting cylinder is provided at the bottom of the stacked sheet materials to push the sheet materials upward. After the picking mechanism picks up the sheet, the translation mechanism clamps the base material of the sheet material and drives the base material to move horizontally. At the same time, the picking mechanism drives the sheet to move vertically to separate the sheet from the base material. This separation method needs to overcome the adhesion force between the sheet and the base material and is likely to damage the sheet and the base material. Therefore, thick sheets and thick base materials need to be used. In this application, by designing a winding and unwinding mechanism 20 and adopting a method of feeding the sheet 4 with a coil material 3, the number of stored sheets can be increased and the feeding frequency can be reduced, which is beneficial to improving the time utilization rate of the production line and has high production efficiency. In addition, when the strip 5 is transmitted during the unwinding and winding of the coil material 3 and passes through the sheet peeling platform 31 and the sheet peeling gap 35 in sequence and then is transmitted to the bottom side of the sheet peeling platform 31, the automatic peeling of the sheet 4 from the strip 5 can be realized. This method can use thin sheets 4 and strips 5, which is beneficial to saving materials. Moreover, by adopting the method of automatically peeling the sheet 4 from the strip 5, the force on each part of the sheet 4 during the peeling process is relatively balanced, reducing the problems of wrinkling and warping of the sheet 4, thus realizing efficient and stable chip mounting.

[0053] Please refer to again Figure 1 , wherein, the winding and unwinding mechanism 20 includes an unwinding assembly 21, an unwinding drive assembly 22 and a winding assembly 23. The unwinding assembly 21 is located upstream of the sheet peeling mechanism 30 and is used to release the strip 5 attached with the sheet 4. The winding assembly 23 is located downstream of the sheet peeling mechanism 30 and is used to wind the strip 5 after sheet peeling. The unwinding drive assembly 22 is located between the sheet peeling mechanism 30 and the winding assembly 23 and is used to drive the strip 5 to transmit. This design can drive the strip 5 to unwind, transmit and wind automatically. In addition, since the unwinding drive assembly 22 is located between the sheet peeling mechanism 30 and the winding assembly 23, when the unwinding drive assembly 22 pulls the strip 5 to transmit, the strip 5 maintains a certain tension and passes through the sheet peeling mechanism 30 to facilitate sheet peeling.

[0054] In some alternative embodiments, the unwinding assembly 21 includes an unwinding shaft 211 and a damper 212. The unwinding shaft 211 is rotatably installed on the frame 10 and is used to assemble the coil material 3 attached with the sheet 4. The damper 212 is installed on the unwinding shaft 211 to prevent the unwinding shaft 211 and the coil material 3 from idling due to inertia. In this way, the coil material 3 needs to be released under a certain pulling force, ensuring that the strip 5 has a certain tension during unwinding.

[0055] In some alternative embodiments, the winding assembly 23 includes a winding shaft 231 and a winding driving member. The winding driving member is installed on the frame 10 and is in transmission connection with the winding shaft 231. The winding driving member is used to drive the winding shaft 231 to rotate so as to provide winding tension, thereby realizing the winding of the strip 5 after the peeling of the peeling sheet 4.

[0056] In some alternative embodiments, the unwinding driving assembly 22 includes an unwinding driving member, an unwinding roller 221 and a pressing roller 222. The unwinding roller 221 and the pressing roller 222 are distributed on opposite sides of the strip 5 along the thickness direction of the strip 5, and the pressing roller 222 presses the strip 5 against the unwinding roller 221. The unwinding driving member is in transmission connection with the unwinding roller 221 and is used to drive the unwinding roller 221 to drive the strip 5 to be transmitted. Since the pressing roller 222 presses the strip 5 against the unwinding roller 221, during the process of the unwinding driving member driving the unwinding roller 221 to rotate, a sliding friction force is generated between the unwinding roller 221 and the strip 5, and the strip 5 can be pulled to run, so as to realize the unwinding and transmission of the strip 5. This way of pulling the strip 5 to run is simple and reliable.

[0057] The winding and unwinding mechanism 20 further includes an unwinding tension adjusting assembly 24. The unwinding tension adjusting assembly 24 is located between the unwinding assembly 21 and the peeling mechanism 30 and is used to adjust the unwinding tension. Specifically, the unwinding tension adjusting assembly 24 is used to cache or release the strip 5 during the unwinding of the strip 5, so as to maintain the unwinding tension of the strip 5.

[0058] In some alternative embodiments, the unwinding tension adjusting assembly 24 includes an unwinding tension driving member 241 and an unwinding tension roller 242. The unwinding tension driving member 241 is in transmission connection with the unwinding tension roller 242 and is used to drive the unwinding tension roller 242 to move. According to the moving distance of the unwinding tension roller 242, the strip 5 with a corresponding surplus can be released, so as to realize the adjustment of the unwinding tension of the strip 5.

[0059] The winding and unwinding mechanism 20 further includes a winding tension adjusting assembly 25. The winding tension adjusting assembly 25 is located between the peeling mechanism 30 and the winding assembly 23 and is used to adjust the winding tension. Specifically, the winding tension adjusting assembly 25 is used to cache or release the strip 5 during the winding of the strip 5, so as to maintain the winding tension of the strip 5.

[0060] In some alternative embodiments, the winding tension adjusting assembly 25 includes a winding tension driving member and a winding tension roller 251. The winding tension driving member is in transmission connection with the winding tension roller 251 and is used to drive the winding tension roller 251 to move. According to the moving distance of the winding tension roller 251, the strip 5 with a corresponding surplus can be released, so as to realize the adjustment of the winding tension of the strip 5.

[0061] The unwinding mechanism 20 also includes a tension isolation component 26, which is located between the unwinding tension adjustment component 24 and the peeling mechanism 30, and is used to isolate the unwinding tension and the peeling tension when the peeling mechanism 30 peels the film, so as to avoid the unwinding tension and the peeling tension from affecting each other and ensure smooth peeling.

[0062] Generally speaking, the tension of the material strip 5 when unwinding is less than the tension when the sheet 4 and the material strip 5 are peeled off. By designing the tension isolation component 26, the unwinding tension will not affect the peeling tension after the tension isolation component 26 is separated. The unwinding tension can be separated from the peeling tension, avoiding the unwinding tension affecting the peeling tension during peeling, thereby ensuring the smooth peeling.

[0063] In some optional embodiments, the tension isolation assembly 26 includes a isolation block 261, a pressure block 262 and a isolation drive 263. The isolation block 261 and the pressure block 262 are distributed on opposite sides of the material strip 5 along the thickness direction of the material strip 5, and the isolation drive 263 drives the pressure block 262 to move so that the pressure block 262 abuts against the isolation block 261. As a result, the unwinding tension and the peeling tension of the material strip 5 are isolated and will not affect each other.

[0064] The unwinding and rewinding mechanism 20 also includes a transition roller assembly 27, which is arranged on the frame 10 and includes multiple transition rollers 271. Each transition roller 271 is arranged between the unwinding mechanism and the rewinding mechanism, and is used to carry the material strip 5 and can change the transmission direction of the material strip 5.

[0065] Please refer again Figure 1 , and also see Figures 5 to 7 In some optional embodiments, a first positioning block 321 and a second positioning block 322 are formed on the placement platform 32. The first positioning block 321 is set along the direction in which the sheet 4 moves toward the placement platform 32, and the second positioning block 322 is set along the direction in which the sheet 4 moves toward the placement platform 32 (such as Figure 7 The direction of intersection (as indicated by the X direction in the Figure 7 The first positioning block 321 is spaced apart from the second positioning block 322 (indicated by the Y direction in the figure), and the first positioning block 321 and the second positioning block 322 jointly define a positioning area for positioning the sheet 4. For example, the second positioning blocks 322 are spaced apart from each other on either side of the first positioning block 321 in a direction perpendicular to the direction in which the sheet 4 moves toward the placement platform 32. The first positioning block 321 can limit and position the sheet 4 in the direction in which the sheet 4 moves toward the placement platform 32, while the second positioning block 322 can limit and position the sheet 4 in a direction intersecting the direction in which the sheet 4 moves toward the placement platform 32, thereby allowing the sheet 4 to be fixed on the placement platform 32 for subsequent processing.

[0066] In some alternative embodiments, the surface of the placement platform 32 where the sheet 4 is placed is coated with an anti-sticking coating. The surface of the placement platform 32 where the sheet 4 is placed is the top surface of the placement platform 32. The anti-sticking coating is provided so that the sheet 4 will not adhere to the placement platform 32 after moving to the placement platform 32, facilitating the sheet picking mechanism 40 to pick up the sheet 4.

[0067] In some alternative embodiments, the sheet peeling mechanism 30 further includes a first detection member 33 for detecting the thickness of the strip 5 before the strip 5 enters the peeling platform 31 to determine whether there is a sheet 4 on the strip 5; and / or, the sheet peeling mechanism 30 further includes a second detection member 34 for detecting whether the sheet 4 has been peeled to the placement platform 32, and the sheet picking mechanism 40 is used to pick up the sheet 4 after the sheet 4 has been peeled to the placement platform 32.

[0068] Among them, the first detection member 33 can be an ultrasonic sensor, and the second detection member 34 can be a laser sensor. Of course, the specific forms of the first detection member 33 and the second detection member 34 are not limited to the above one, and can also be other forms, which can be specifically set according to requirements.

[0069] The first detection member 33 and the second detection member 34 are electrically connected to the control mechanism. The first detection member 33 detects the thickness of the strip 5 and feeds it back to the control mechanism. The control mechanism determines whether there is a sheet 4 on the strip 5 before it enters the peeling platform 31 based on the thickness fed back by the first detection member 33. For example, taking the sheet 4 as an insulating sheet, the thickness of the insulating sheet is approximately 0.05 mm, and the thickness of the strip 5 is approximately 0.03 mm. When the thickness detected by the first detection member 33 is close to 0.08 mm, it indicates that there is a sheet 4 on the strip 5, and the control mechanism controls other mechanisms to maintain their original working states and work normally; when the thickness detected by the first detection member 33 is close to 0.03 mm, it indicates that there is no sheet 4 on the strip 5, and the control mechanism controls the strip 5 to continue running until the thickness detected by the first detection member 33 is close to 0.08 mm.

[0070] The second detection member 34 detects whether the sheet 4 has been peeled to the placement platform 32 and feeds it back to the control mechanism. If so, the control mechanism controls the strip 5 to pause running, and at the same time controls the sheet picking mechanism 40 to move to the placement platform 32 and pick up the sheet 4; if not, the control mechanism controls other mechanisms to maintain their original working states, and the strip 5 continues to run until the second detection member 34 detects that the sheet 4 has been peeled to the placement platform 32.

[0071] By providing the first detection member 33 and / or the second detection member 34, the operation of the sheet peeling mechanism 30 can be monitored in real time to ensure the peeling accuracy and reliability.

[0072] Please refer to Figures 1 to 4 and also refer toFigures 8 to 10 The sheet taking mechanism 40 includes a three-axis drive assembly, a rotary drive assembly, and a vacuum chuck 41. The rotary drive assembly is arranged on the three-axis drive assembly, and the vacuum chuck 41 is arranged on the rotary drive assembly. The three-axis drive assembly drives the vacuum chuck 41 to achieve translation in three degrees of freedom, so as to realize the transformation of the position of the vacuum chuck 41. The rotary drive assembly drives the chuck to rotate, so as to realize the transformation of the adsorption angle of the chuck. The three-axis drive assembly and the rotary drive assembly cooperate to facilitate the chuck to adsorb the sheet 4.

[0073] In some alternative embodiments, the three-axis drive assembly includes a lifting drive assembly, a transverse drive assembly, and a longitudinal drive assembly. The lifting drive assembly includes a lifting cylinder 42 and a lifting mounting plate. The lifting cylinder 42 is in transmission connection with the lifting mounting plate and is used to drive the lifting mounting plate to drive the transverse drive assembly, the longitudinal drive assembly, the rotary drive assembly, and the vacuum chuck 41 to lift. The longitudinal drive assembly includes a longitudinal cylinder 43 and a longitudinal mounting plate. The longitudinal drive motor is fixedly connected to the longitudinal mounting plate and is used to drive the transverse drive assembly, the rotary drive assembly, and the vacuum chuck 41 to move along the width direction of the strip 5 through the longitudinal mounting plate. The transverse drive assembly includes a transverse motor 44, a transverse transmission gear 45, and a transverse transmission rack 46. The transverse motor 44 is in transmission connection with the transverse transmission gear 45, and the transverse transmission gear 45 meshes with the transverse transmission rack 46. The rotary drive assembly and the vacuum chuck 41 are both mounted on the transverse transmission rack 46. When the transverse motor 44 works, it drives the transverse transmission rack 46, the rotary drive assembly, and the vacuum chuck 41 to reciprocate in the direction in which the sheet 4 moves towards the placement platform 32 and in the direction opposite to the movement direction.

[0074] In some alternative embodiments, the rotary drive assembly includes a rotary drive motor 47 and a rotary mounting plate 48. The vacuum chuck 41 and the rejection mechanism 50 are both mounted on the rotary mounting plate 48. The rotary drive motor 47 drives the vacuum chuck 41 and the rejection mechanism 50 to rotate through the rotary mounting plate 48.

[0075] In some alternative embodiments, the vacuum chuck 41 is an annular chuck and has a central hole; the rejection mechanism 50 includes a rejection driving member 52 and a rejection push rod 51. The rejection driving member 52 is in transmission connection with the rejection push rod 51, and the rejection push rod 51 passes through the central hole of the vacuum chuck 41 and can protrude from the vacuum chuck 41 under the action of the rejection driving member 52 to push off the waste on the sheet 4.

[0076] During actual operation, the rejection driving member 52 drives the rejection push rod 51 to protrude from the vacuum chuck 41 to press the surface of the sheet 4, so as to push off the waste on the sheet 4. Then, the rejection driving member 52 drives the rejection push rod 51 to retract above the surface of the vacuum chuck 41 pressing the sheet 4, so as to avoid the rejection push rod 51 interfering with the vacuum chuck 41 adsorbing the sheet 4.

[0077] The waste removing mechanism 50 knocks off the waste on the sheet 4 to form a sheet 4 with a hollowed-out area 401, which is used to avoid the pole posts of the battery cell 2 during the subsequent chip mounting process.

[0078] The chip mounting device 1 further includes a waste collection mechanism 70, which is located below the placement platform 32 and is used to receive the knocked-off waste. Specifically, for example, clearance holes can be designed on the placement platform 32. When the sheet 4 is positioned on the placement platform 32, the position of the waste on the sheet 4 is arranged opposite to the clearance holes. When the waste removing mechanism 50 knocks off the waste, the waste can fall through the clearance holes and be collected in the waste collection mechanism 70.

[0079] For example, the waste collection mechanism 70 can be a collection bucket, a collection basin or other forms of collection containers, and specific forms are not limited here.

[0080] Please refer to Figures 1 to 4 and also refer to Figures 11 to 12 The chip mounting device 1 further includes a vision detection mechanism 60. The vision detection mechanism 60 is electrically connected to the control mechanism. The vision detection mechanism 60 is used to take pictures of the vacuum chuck 41 and the sheet 4 after the vacuum chuck 41 sucks the sheet 4. The control mechanism obtains the relative position between the vacuum chuck 41 and the sheet 4 according to the image taken by the vision detection mechanism 60, corrects the chip mounting position of the sheet 4 according to the relative position, and the control mechanism judges whether the sheet 4 is qualified according to the image taken by the vision detection mechanism 60, and controls the vacuum chuck 41 to pick up the sheet again when the sheet 4 is unqualified.

[0081] Specifically, after the waste on the sheet 4 is removed, the sheet picking mechanism 40 adsorbs the sheet 4 and drives the sheet 4 to move into the detection area of the vision detection mechanism 60. The vision detection mechanism 60 takes pictures of the vacuum chuck 41 and the sheet 4 and feeds them back to the control mechanism. The control mechanism obtains the relative position between the vacuum chuck 41 and the sheet 4 according to the image and can judge whether the sheet 4 is qualified. If the relative position between the vacuum chuck 41 and the sheet 4 meets the requirements, for example, the central axis of the central hole of the vacuum chuck 41 coincides with the central axis of the hollowed-out area 401, the control mechanism controls the chuck to drive the sheet 4 to move to the chip mounting station along the preset path for direct chip mounting. If the relative position between the vacuum chuck 41 and the sheet 4 does not meet the requirements, for example, the central axis of the central hole of the vacuum chuck 41 does not coincide with the central axis of the hollowed-out area 401, after the control mechanism controls the chuck to drive the sheet 4 to move to the chip mounting station along the preset path, the control mechanism controls the chuck to drive the sheet 4 to make a small movement at the chip mounting station according to the deviation degree to correct the chip mounting position of the sheet 4 on the battery cell 2 and ensure the accuracy of chip mounting.

[0082] In addition, the control mechanism can also determine whether the sheet 4 is qualified based on the image. For example, if there are cracks, black spots, or notches on the sheet 4, it is determined to be unqualified. If the control mechanism determines that the sheet 4 is unqualified, the control mechanism controls the sheet retrieval mechanism 40 to drive the sheet 4 for recycling. The control mechanism then controls the sheet retrieval mechanism 40 to re-retrieve the sheet according to the previous steps and take photos for inspection until the control mechanism determines that the sheet 4 is qualified. The control mechanism then controls the sheet retrieval mechanism 40 to drive the sheet 4 to the patch station for patching.

[0083] In some optional embodiments, the visual inspection mechanism 60 includes a camera 61 and a light source 62. The camera 61 is used to take pictures, and the light source 62 emits a light beam to illuminate the photographing area of the camera 61 to obtain a clear image. It is understood that the photographing area here is the inspection area of the visual inspection mechanism 60.

[0084] In some optional embodiments, the patch device 1 further includes a sheet collecting mechanism 80, which is used to collect sheets 4 that are determined by the control mechanism to be unqualified. Specifically, the sheet collecting mechanism 80 can be a collection container with a collection cavity, or a collection platform. The vacuum suction cup 41 drives the sheet 4 to adhere to the collection platform to achieve collection of the sheet 4.

[0085] Next, the specific working process of the entire patch device 1 is described in detail.

[0086] The web 3 is manually installed onto the unwinding shaft 211 of the unwinding assembly 21 and threaded. This process involves passing the web 5 through the transition rollers 271 and winding it onto the rewinding assembly 23. The control mechanism controls the tension-breaking assembly 26 to compress the web 5 and the unwinding tension drive 241 of the unwinding tension adjustment assembly 24 and the rewinding tension drive of the rewinding tension adjustment assembly 25 to adjust the unwinding and rewinding tensions. The control mechanism then controls the tension-breaking assembly 26 to release the web 5 and the unwinding drive of the unwinding drive assembly 22 to transport the web 5. As the web 5 passes the stripping platform 31, it abuts the stripping platform 31 and moves through the stripping gap 35 between the stripping platform 31 and the placement platform 32 toward the bottom of the stripping platform 31. The sheet 4 on the web 5 moves from the stripping platform 31 to the placement platform 32, separating the web 5 from the sheet 4.

[0087] Afterwards, the second detector 34 detects the presence of a sheet 4 on the placement platform 32 and sends a feedback to the control mechanism, which stops the stripping process. The control mechanism then controls the vacuum suction cup 41 of the sheet removal mechanism 40 to press the sheet 4 against the placement platform 32. The ejector drive 52 then drives the ejector pusher 51 to push the waste material off the sheet 4, where it is collected by the waste collection mechanism 70.

[0088] Next, the vacuum chuck 41 drives the sheet 4 to move to the detection area of the vision detection mechanism 60 for photographing detection and feedback to the control mechanism. The control mechanism determines whether the sheet 4 is qualified based on the image captured by the vision detection mechanism 60 and obtains the relative position between the vacuum chuck 41 and the sheet 4. If the sheet 4 is unqualified, the control mechanism controls the vacuum chuck 41 to drive the sheet 4 to move to the sheet collection mechanism 80 for recycling. Then, after picking up a new sheet 4 from the placement platform 32 again, the detection is carried out again until the sheet 4 is qualified. Next, the vacuum chuck 41 drives the sheet 4 to move to the chip placement station for chip placement. If the relative position between the vacuum chuck 41 and the sheet 4 meets the requirements, for example, the central axis of the central hole of the vacuum chuck 41 coincides with the central axis of the hollow area 401, the control mechanism controls the chuck to drive the sheet 4 to move to the chip placement station along a preset path for direct chip placement. If the relative position between the vacuum chuck 41 and the sheet 4 does not meet the requirements, for example, the central axis of the central hole of the vacuum chuck 41 does not coincide with the central axis of the hollow area 401, after the control mechanism controls the chuck to drive the sheet 4 to move to the chip placement station along a preset path, the control mechanism controls the chuck to drive the sheet 4 to move slightly again at the chip placement station to correct the chip placement position of the sheet 4 on the battery cell 2 to ensure the accuracy of chip placement.

[0089] For the above chip placement device 1, by designing the unwinding and rewinding mechanism 20 and adopting the method of feeding the sheet 4 with the coil material 3, the number of stored sheets can be increased and the feeding frequency can be reduced, which is beneficial to improving the time utilization rate of the production line and has a high production efficiency. In addition, during the unwinding and rewinding of the coil material 3 of the strip 5, and during the process of sequentially passing through the sheet peeling platform 31 and the sheet peeling gap 35 and then being transmitted to the bottom side of the sheet peeling platform 31, the automatic peeling of the sheet 4 from the strip 5 can be realized. This method only requires the use of a thin sheet 4 and strip 5, which is beneficial to saving materials. Moreover, by adopting the method of automatically peeling the sheet 4 from the strip 5, the force on each part of the sheet 4 during the peeling process is relatively balanced, reducing the problems of wrinkling and warping of the sheet 4, thus realizing efficient and stable chip placement.

[0090] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. [[ID=&]]

[0091] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A chip mounting device, characterized in that, The patch device includes a frame (10), a winding and unwinding mechanism (20), a sheet peeling mechanism (30) and a sheet picking mechanism (40). The winding and unwinding mechanism (20), the sheet peeling mechanism (30) and the sheet picking mechanism (40) are all arranged on the frame (10). The sheet peeling mechanism (30) includes a peeling platform (31) and a placing platform (32). The peeling platform (31) and the placing platform (32) are arranged at intervals, and a peeling gap (35) for the supply tape (5) to pass through is formed. The winding and unwinding mechanism (20) is used to release the tape (5) attached with the sheet (4), and the winding and unwinding mechanism (20) can drive the tape (5) to transmit and pass through the peeling platform (31) and the peeling gap (35) in sequence and then transfer to the bottom side of the peeling platform (31). During the movement of the tape (5) towards the peeling gap (35), the sheet (4) is peeled off from the tape (5), and the sheet (4) moves from the peeling platform (31) to the placing platform (32). The winding and unwinding mechanism (20) is also used to wind the peeled tape (5). The sheet picking mechanism (40) is used to suck the sheet (4) on the placing platform (32), and the sheet picking mechanism (40) drives the sheet (4) to move and perform patching.

2. The patch device according to claim 1, wherein, A first positioning block (321) and a second positioning block (322) are formed on the placing platform (32). The first positioning block (321) is arranged along the direction in which the sheet (4) moves towards the placing platform (32). The second positioning block (322) is arranged at intervals on both sides opposite to the first positioning block (321) along a direction intersecting with the direction in which the sheet (4) moves towards the placing platform (32). The first positioning block (321) and the second positioning block (322) jointly define a positioning area for positioning the sheet (4).

3. The patch device according to claim 2, wherein The surface of the placing platform (32) for placing the sheet (4) is coated with an anti-adhesive coating.

4. The patch device according to claim 1, characterized in that, The sheet peeling mechanism (30) further includes a first detection member (33). The first detection member (33) is used to detect the thickness of the tape (5) before the tape (5) enters the peeling platform (31) to judge whether there is a sheet (4) on the tape (5); and / or The sheet peeling mechanism (30) further includes a second detection member (34). The second detection member (34) is used to detect whether the sheet (4) is peeled to the placing platform (32). The sheet picking mechanism (40) is used to suck the sheet (4) after the sheet (4) is peeled to the placing platform (32).

5. The patch device according to claim 1, characterized in that, It further includes a rejection mechanism (50). The rejection mechanism (50) is arranged on the sheet picking mechanism (40) and is used to reject the waste on the sheet (4) when the sheet picking mechanism (40) presses the sheet (4) against the placing platform (32).

6. The patch device according to claim 5, wherein The sheet picking mechanism (40) includes a vacuum chuck (41). The vacuum chuck (41) is an annular chuck and has a central hole. The rejection mechanism (50) includes a rejection driving member (52) and a rejection push rod (51). The rejection driving member (52) is in transmission connection with the rejection push rod (51). The rejection push rod (51) passes through the central hole of the vacuum suction cup (41) and can protrude from the vacuum suction cup (41) under the action of the rejection driving member (52) to push off the waste on the sheet material (4).

7. The patch device according to claim 1, wherein The rewinding and unwinding mechanism (20) includes an unwinding assembly (21), an unwinding driving assembly (22), and a winding assembly (23). The unwinding assembly (21) is located upstream of the sheet peeling mechanism (30) and is used to release the strip (5) attached with the sheet material (4). The winding assembly (23) is located downstream of the sheet peeling mechanism (30) and is used to wind the strip (5) after sheet peeling. The unwinding driving assembly (22) is located between the sheet peeling mechanism (30) and the winding assembly (23) and is used to drive the strip (5) to transmit.

8. The patch device according to claim 7, characterized in that, The unwinding driving assembly (22) includes an unwinding driving member, an unwinding roller (221), and a pressing roller (222). The unwinding roller (221) and the pressing roller (222) are distributed on opposite sides of the strip (5) along the thickness direction of the strip (5). The pressing roller (222) presses the strip (5) against the unwinding roller (221). The unwinding driving member is in transmission connection with the unwinding roller (221) and is used to drive the unwinding roller (221) to drive the strip (5) to transmit.

9. The patch device according to claim 7, wherein The rewinding and unwinding mechanism (20) further includes an unwinding tension adjusting assembly (24). The unwinding tension adjusting assembly (24) is located between the unwinding assembly (21) and the sheet peeling mechanism (30) and is used to adjust the unwinding tension; and / or The rewinding and unwinding mechanism (20) further includes a winding tension adjusting assembly (25). The winding tension adjusting assembly is located between the sheet peeling mechanism (30) and the winding assembly (23) and is used to adjust the winding tension.

10. The patch device according to claim 9, characterized in that, The rewinding and unwinding mechanism (20) further includes a tension isolation assembly (26). The tension isolation assembly (26) is located between the unwinding tension adjusting assembly (24) and the sheet peeling mechanism (30) and is used to isolate the unwinding tension and the sheet peeling tension when the sheet peeling mechanism (30) peels the sheet.

11. The patch device according to claim 1, characterized in that, The chip mounting device further includes a visual inspection mechanism (60) and a control mechanism. The visual inspection mechanism (60) is arranged on the frame (10) and is electrically connected to the control mechanism; The sheet taking mechanism (40) includes a vacuum suction cup (41). The visual inspection mechanism (60) is used to take pictures of the vacuum suction cup (41) and the sheet material (4) after the vacuum suction cup (41) sucks the sheet material (4). The control mechanism obtains the relative position between the vacuum suction cup (41) and the sheet material (4) according to the image taken by the visual inspection mechanism (60), corrects the chip mounting position of the sheet material (4) according to the relative position, and the control mechanism judges whether the sheet material (4) is qualified according to the image taken by the visual inspection mechanism (60), and controls the vacuum suction cup (41) to take the sheet again when the sheet material (4) is unqualified.

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