Methods, systems, cutting control devices, and film application methods for multi-piece products

Abstract

This invention discloses a method, system, cutting control device, and multi-piece product film application method for cutting multiple products. The multi-piece product cutting method includes the following steps: controlling a cutting table to fix the parts to be cut on it; the parts to be cut include a base film and multiple products attached side-by-side and spaced apart on the base film; determining, through image recognition, whether the spacing between adjacent products in the parts to be cut meets the cutting requirements, which are that when the cutting mechanism cuts a product at a set starting and ending position, it will not cut adjacent products; if yes, the cutting mechanism is controlled to cut each product sequentially; if not, cutting is paused. This invention uses image recognition to determine if the spacing between adjacent products meets the requirements before cutting, thus avoiding cutting adjacent products while cutting one product, which improves cutting safety.

Description

Technical Field

[0001] This invention relates to the field of semiconductor devices, and in particular to a method, system, cutting control device, and method for applying films to multiple wafers. Background Technology

[0002] QFN (Quad Flat No-leads) is a common integrated circuit package widely used in various electronic devices.

[0003] When cutting QFN products using dicing equipment disclosed in patent documents such as CN221912710U (authorization announcement number) and CN115464791A (application publication number), in order to save energy and control costs, as shown in the appendix... Figure 1 As shown, multiple products 130 are typically attached to the base film 120 of a film holder 110 for processing.

[0004] Furthermore, to ensure thorough cutting, the cutter 330 needs to start cutting from a certain distance in front of each product and end at a certain distance behind it. Specifically, when cutting each product, the starting position of the cutter (the X-coordinate of the projection of the cutter's center onto the cutting table) is determined by the X-coordinate of one of the product's apex corners and the allowance A in front of the product. 前 It is determined that the cutting end position of the cutter is determined by the cutting start position, the product width, and the allowance A behind the product. 后 To be determined jointly.

[0005] Therefore, it is necessary to accurately control the spacing between adjacent products and the allowance A in front of the product. 前 Product rear allowance A 后 This is to prevent the cutter from cutting another product while cutting one product. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned problems existing in the prior art and to provide a method, system, cutting control device, and method for applying film to multiple products.

[0007] The objective of this invention is achieved through the following technical solution:

[0008] The method for cutting multiple products includes the following steps:

[0009] The control cutting table fixes the workpiece to be cut on it, the workpiece to be cut includes a base film and multiple pieces of product attached side by side and spaced apart on the base film;

[0010] Image recognition determines whether the spacing between adjacent products in the workpiece to be cut meets the cutting requirements. When the spacing between adjacent products meets the cutting requirements, the cutting mechanism will not cut adjacent products when cutting a product according to the set cutting start position and cutting end position.

[0011] Once the spacing between adjacent products is determined to meet the cutting requirements, the cutting mechanism is controlled to cut each product sequentially.

[0012] Cutting is paused when it is determined that the spacing between adjacent products does not meet the cutting requirements.

[0013] Preferred,

[0014] When it is determined that the distance between adjacent products is not less than the distance threshold, it is determined that the distance between adjacent products meets the cutting requirements;

[0015] When it is determined that the distance between adjacent products is less than the distance threshold, it is determined that the distance between adjacent products does not meet the cutting requirements;

[0016] The distance threshold is determined according to the following formula: ;

[0017] Where L is the distance threshold, R is the cutting radius of the cutting mechanism, H is the thickness of the product, h is the cutting depth of the cutting blade on the bottom film, and m is the set control quantity.

[0018] Preferably, the allowance in front of the product used to determine the start position of the cut and the allowance behind the product used to determine the end position of the cut are L / 2.

[0019] Preferably, before determining the spacing between adjacent products, image recognition is used to determine whether the long or short sides of each product on the workpiece to be cut are parallel. If the long or short sides of adjacent products are determined to be parallel, the spacing between adjacent products is determined. If the long or short sides of adjacent products are determined to be non-parallel, the determination of the spacing between adjacent products is stopped.

[0020] Preferably, when it is determined that the long or short sides of each product are parallel, image recognition is used to determine whether the long or short side of the product extends along the X-axis or Y-axis. If so, the spacing between adjacent products is determined. If not, the cutting table is rotated to extend the long or short side of the product along the X-axis or Y-axis before the spacing between adjacent products is determined.

[0021] Preferably, before controlling the cutting mechanism to cut, the spindle is controlled to run at a predetermined cutting speed, and it is determined whether the vibration values ​​detected by the vibration detection components near both ends of the spindle do not exceed the vibration threshold. If so, the spindle is determined to be normal and cutting continues; otherwise, the spindle is determined to be abnormal and cutting is stopped.

[0022] Preferably, the vibration detection assembly includes an axial detection sensor and a radial detection sensor.

[0023] Multi-piece product cutting system, including:

[0024] A fixing unit is used to control the cutting table to fix the workpiece to be cut on it, the workpiece to be cut including a base film and multiple pieces of products attached side by side and spaced apart on the base film;

[0025] The image recognition unit is used to determine whether the spacing between adjacent products meets the cutting requirements. When the spacing between adjacent products meets the cutting requirements, the cutting mechanism will not cut adjacent products when cutting a product according to the set cutting start position and cutting end position.

[0026] The cutting unit is used to control the cutting mechanism to cut each product sequentially when the spacing between adjacent products meets the cutting requirements.

[0027] An alarm unit is used to pause cutting when it is determined that the spacing between adjacent products does not meet the cutting requirements.

[0028] The method for applying film to multiple products includes the following steps:

[0029] Multiple products are attached side-by-side and spaced apart on the base film of the membrane holder to obtain the test sample;

[0030] Determine whether the spacing between adjacent products on the test item meets the cutting requirements. When the spacing between adjacent products meets the cutting requirements, the cutting mechanism will not cut adjacent products when cutting a product according to the set cutting start position and cutting end position.

[0031] Once it is determined that the spacing between adjacent products on the item to be tested meets the requirements, it is placed into the qualified product box.

[0032] When it is determined that the spacing between adjacent products on the test item does not meet the requirements, an anomaly is handled.

[0033] A cutting control device includes a memory and a processor. The memory stores a program that can be executed by the processor. When the program is executed, it implements the multi-piece product cutting method as described above or the multi-piece product film application method as described above.

[0034] The advantages of the technical solution of this invention are mainly reflected in:

[0035] This invention uses image recognition to detect whether the spacing between adjacent products on the workpiece to be cut meets the requirements before cutting. Cutting is only carried out when the spacing meets the requirements, which effectively ensures that the spacing between adjacent products meets the requirement that adjacent products will not be cut when cutting one product. This helps to improve the safety and quality of cutting.

[0036] The distance threshold determination formula of this invention considers multiple factors, providing an accurate reference for product spacing identification and thus ensuring the accuracy of the judgment. Simultaneously, by controlling the allowance in front of and behind the product, the cutter ensures that it does not contact any product when it descends to the cutting height, effectively preventing damage to the product due to discontinuous cutting action.

[0037] This invention determines whether the long or short sides of two products are parallel before determining the spacing. This allows for faster identification of any product abnormalities, preventing inaccurate spacing measurements from affecting judgment accuracy when products are in abnormal condition, thus ensuring accurate identification. Before determining the spacing, the extension direction of the product's long or short side is also determined to ensure it matches the axial direction of the cutter, thereby ensuring safe cutting of the product.

[0038] When the distance between adjacent products meets the cutting requirements, this invention first runs the spindle at a predetermined cutting speed and uses axial and radial detection sensors to detect whether there is any abnormality in the vibration of the spindle. When an abnormality is detected, cutting is paused, which can effectively avoid the cutting accuracy being affected by large cutter vibration and further avoid the situation of cutting two products. Attached Figure Description

[0039] Figure 1 This is a top view of the workpiece to be cut, the front allowance of each product on it, and the rear allowance of each product.

[0040] Figure 2 This is a schematic diagram of the dicing device of the present invention cutting the workpiece;

[0041] Figure 3 This is a flowchart illustrating the multi-piece product cutting method of the present invention;

[0042] Figure 4 This is a schematic diagram of how a vision inspection component is used to collect images of the workpiece to be cut on the cutting table in this invention.

[0043] Figure 5 This is a schematic diagram illustrating the principle of determining the spatial threshold in this invention;

[0044] Figure 6This is a flowchart illustrating the process of parallel detection of product side edges in the multi-piece product cutting method of the present invention.

[0045] Figure 7 This is a perspective view of the vibration detection component mounted on the main shaft in this invention;

[0046] Figure 8 The present invention provides a multi-piece product cutting method, which includes a flowchart of detecting spindle vibration by a vibration detection component and determining whether to cut based on the vibration value before cutting. Detailed Implementation

[0047] The objectives, advantages, and features of this invention will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this invention, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this invention.

[0048] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0049] The method for cutting multiple products disclosed in this invention will be described below with reference to the accompanying drawings. Figure 1 As shown, the multi-piece product cutting method includes an annular film frame 110, a base film 120 attached to the film frame 110, and multiple pieces of product 130 attached side by side and spaced apart to the base film 120.

[0050] The multi-piece product cutting method is based on a dicing device, as shown in the attached figure. Figure 2 As shown, similar to existing dicing equipment, it includes:

[0051] The cutting table (not shown in the figure) is used to place and fix the workpiece 100 to be cut. It uses vacuum adsorption to adsorb and fix the bottom film 120 of the workpiece 100 to be cut, and uses a ring of gripper assembly to fix the film frame 110 where the bottom film 120 is located.

[0052] The first moving mechanism 200 drives the cutting table to translate between the loading / unloading position and the cutting position, and drives the cutting table to rotate. Its specific structure is known technology and will not be described in detail here.

[0053] The cutting mechanism 300 includes a second moving mechanism 310 and a main shaft 320 driven by the second moving mechanism 310 to move horizontally and vertically. The specific structure of the second moving mechanism 310 is known technology and will not be described in detail here. The second moving mechanism drives the main shaft 320 to translate along the axis of the main shaft, which is defined as the Y-axis direction. The direction in which the first moving mechanism 200 drives the cutting table to translate is defined as the X-axis direction, which is perpendicular to the Y-axis direction. The main shaft 320 is connected to a cutter 330 that is driven to rotate by it.

[0054] The cutting control device 400 is connected to the cutting table, the first moving mechanism and the cutting mechanism 300, and controls their operation.

[0055] The cutting control device 400 is also connected to a vision inspection component 500. The vision inspection component 500 includes, for example, an industrial camera, a lens, and a light source. The vision inspection component 500 is disposed on the side of the main shaft or on the second moving mechanism and moves synchronously with the main shaft. The vision inspection component 500 acquires images of the workpiece 100 to be cut on the cutting table. The cutting control device 400 performs image recognition based on the images acquired by the vision inspection component 500. The specific content of the image recognition can be determined as needed. For example, it can identify the position coordinates of the top corner of each product on the workpiece to be cut, etc., which is not limited here.

[0056] As attached Figure 3 Appendix Figure 4 As shown, the multi-piece product cutting method includes the following steps:

[0057] The workpiece 100 to be cut is placed concentrically on the cutting table in a predetermined state, either manually or through automated equipment (loading and unloading robot).

[0058] After confirming that the workpiece 100 to be cut is placed on the cutting table, the cutting table is controlled to fix the workpiece 100 to be cut on it.

[0059] The vision detection component 500 is controlled to acquire an image of the workpiece 100 to be cut on the top of the cutting table and determine through image recognition whether the spacing between adjacent products 130 in the workpiece 100 meets the cutting requirements. When the spacing between adjacent products meets the cutting requirements, the cutting mechanism 300 will not cut adjacent products 130 when cutting a product 130 according to the set cutting start position and cutting end position.

[0060] When determining whether the spacing between adjacent products 130 meets the cutting requirements, the method involves determining whether the spacing between adjacent products 130 is less than a distance threshold. If the spacing between adjacent products 130 is not less than the distance threshold, the spacing between adjacent products 130 is determined to meet the cutting requirements; if the spacing between adjacent products 130 is less than the distance threshold, the spacing between adjacent products 130 is determined to not meet the cutting requirements. The specific method for determining the spacing between two adjacent products 130 through image recognition is known technology and not an innovation of this invention, and will not be elaborated here.

[0061] As attached Figure 5 As shown, when the cutter 330 is tangent to the first upper apex A and the second upper apex B of two adjacent products 130, the distance AB between the first upper apex A and the second upper apex B is the spacing between the two products 130. The distance OA from the center O of the cutter 330 to the first upper apex A is equal to the distance OB from the center O of the cutter 330 to the second upper apex B, which is equal to the radius R of the cutter 330. Simultaneously, the radius R of the cutter 330 is equal to the thickness H of the product 130 plus the cutting depth h of the cutter 330 on the bottom film plus the distance OC from the center O of the cutter 330 to the top surface of the product 130 when the cut is complete. Therefore, OC = ， Meanwhile, point C is the midpoint of AB, the connection between the first upper vertex angle A and the second upper vertex angle B, i.e., AC = BC. According to the Pythagorean theorem, we have... therefore, .

[0062] Meanwhile, considering the impact of various errors on positioning accuracy, the distance threshold is determined according to the following formula: ;

[0063] Where L is the distance threshold and m is the set control amount. The set control amount is determined by taking into account factors such as equipment accuracy error and film placement error. It is preferably 4.5mm. Under this set control amount, when cutting at the start and end positions, the cutter can be prevented from contacting any of the adjacent products.

[0064] When it is determined that the spacing between adjacent products 130 meets the cutting requirements, the cutting mechanism 300 is controlled to cut each product 130 in sequence.

[0065] For example, when there are only two products 130 on the part to be cut 100, it is only necessary to determine that the distance between the two products 130 meets the cutting requirements; when the number of products 130 on the part to be cut 100 is greater than 2, for example, the part to be cut 100 includes 3 products 130, which are defined as product 1, product 2 and product 3 from left to right, then it is necessary to determine that the distance between product 1 and product 2 and the distance between product 2 and product 3 both meet the cutting requirements.

[0066] The specific process of controlling the cutting mechanism to perform cutting is a known technology and is not an innovation of this invention, so it will not be described in detail here.

[0067] Conversely, if it is determined that the distance between any two adjacent products 130 does not meet the cutting requirements, the cutting will be paused. At the same time, an alarm can be set up to remind the staff to handle the situation. Alternatively, the parts to be cut on the cutting table can be transferred to the abnormal parts box by the loading and unloading robot for storage, and the next part to be cut can be processed.

[0068] Correspondingly, the allowance A in front of the product used to determine the starting position of the cutting is... 前 And the allowance A behind the product used to determine the end position of the cutting 后 This ensures that, regardless of whether the cutting starts or ends, when the cutter 330 moves down to the cutting height, it will be positioned between two adjacent products 130 and maintain a distance from them, thus effectively guaranteeing the safety of the cutting process.

[0069] As attached Figure 6 As shown, before determining the spacing between adjacent products 130, image recognition is used to determine whether the long or short sides of each product 130 on the workpiece to be cut are parallel. The specific image processing method for determining whether the long or short sides of each product 130 are parallel is a known technology and is not an innovation of this invention, so it will not be described in detail here.

[0070] If it is determined that the long or short sides of all products 130 are parallel (i.e., all products have parallel long or short sides), then the spacing between adjacent products 130 is determined. If it is determined that the long or short sides of any two products 130 are not parallel (i.e., any two products have parallel long or short sides), then the determination of the spacing between adjacent products is paused. In this case, an alarm can be triggered to prompt manual intervention, or the parts to be cut can be transferred to the abnormal parts box by a loading and unloading robot for processing the next part. This avoids product 130 skewing affecting cutting quality and ensures that the spacing between adjacent products 130 determined by image recognition is accurate.

[0071] As attached Figure 6As shown, since the axis of the cutter on the spindle is fixed, determining that the long or short sides of each product 130 are parallel does not guarantee that the extension direction of the long or short sides of each product matches the axis of the cutter. Therefore, when determining that the long or short sides of each product 130 are parallel, it is necessary to further determine whether the long or short sides of the product extend along the X-axis or Y-axis direction through image recognition. (See attached image.) Figure 2 As shown, when the workpiece is placed on the cutting table, after adjusting the cutting table using a known edge-finding method, the long side of the product will theoretically extend along the Y-axis. Therefore, when determining that the long or short sides of each product 130 are parallel, image recognition can be used to determine whether any long side of any product extends along the Y-axis. If so, the spacing between adjacent products is further determined. If not, that is, the long side of each product maintains a certain angle with the Y-axis, the cutting table can be rotated according to the angle between the long side and the Y-axis, thereby rotating the product until its long side extends along the Y-axis. At this point, the spacing between adjacent products can be further determined. Here, the specific image recognition methods for identifying whether the long or short side of a product extends along the Y-axis or X-axis and for determining the angle between the long or short side of a product and the Y-axis or X-axis are known technologies and not innovative in this invention, and will not be elaborated here.

[0072] Because the distance between the cutter and product 130 is very small and the cutting path on product 130 is very narrow at the start and end of the cutting, and because the spindle 320 may vibrate significantly during cutting due to unbalanced operation or axial movement, thus affecting the cutting accuracy of the cutter 330 and increasing the risk of the cutter 330 cutting two adjacent products 130, therefore, as shown in the attached... Figure 7 As shown, a vibration detection assembly 340 is provided near both ends of the main spindle 320. The vibration detection assembly 340 includes a fixing frame 341, which is approximately C-shaped and surrounds the top of the main spindle. The two ends of the fixing frame 341 are connected to the main spindle 320 by fastening bolts. The axis of the fastening bolts extends horizontally and is perpendicular to the axis of the main spindle 320. Meanwhile, an axial detection sensor 342 and a radial detection sensor 343 are provided on the fixing frame 341. The axial detection sensor 342 and the radial detection sensor 343 can be known vibration sensors. The axial detection sensor 342 is located on one side of the fixing frame 341, and the radial detection sensor 343 is located on the top of the fixing frame 341.

[0073] As attached Figure 8As shown, before the cutting mechanism 300 starts cutting, the spindle 320 is controlled to operate at a predetermined cutting speed. It is determined whether the vibration values ​​detected by the two vibration detection components 340 near both ends of the spindle 320 do not exceed a first vibration threshold. If so, the spindle 320 is considered normal, and cutting continues. If not, the spindle 320 is considered abnormal, and cutting stops. The first vibration threshold is, for example, 0.02 mm / s. When the vibration value detected by either the axial detection sensor 342 or the radial detection sensor 343 exceeds the vibration threshold, the spindle 320 is considered abnormal, cutting is stopped, and an alarm is triggered to alert for manual intervention. Conversely, when the vibration values ​​detected by both the axial detection sensor 342 and the radial detection sensor 343 do not exceed the vibration threshold, the spindle is considered normal, and cutting can begin.

[0074] Furthermore, during the cutting process, the vibration values ​​detected by the axial detection sensor 342 and the radial detection sensor 343 can be continuously acquired, and it can be determined whether the vibration values ​​detected by the axial detection sensor 342 and the radial detection sensor 343 exceed the cutting vibration threshold, for example, 0.05 mm / s. If so, the cutting is determined to be abnormal, the cutting is stopped, and an alarm is triggered to remind manual handling; otherwise, the cutting continues. Example 2

[0075] This embodiment discloses a multi-piece product cutting system, including:

[0076] A fixing unit is used to control the cutting table to fix the workpiece 100 to be cut, including the base film 120 and multiple pieces of product 130 attached side by side and at intervals to the base film 120.

[0077] The image recognition unit is used to determine whether the spacing between adjacent products 130 meets the cutting requirements. The cutting requirements are that when the cutting mechanism 300 cuts a product 130 according to the set cutting start position and cutting end position, it will not cut the adjacent product 130.

[0078] The cutting unit is used to control the cutting mechanism 300 to cut each product 130 sequentially when it is determined that the spacing between adjacent products 130 meets the cutting requirements.

[0079] An alarm unit is used to pause cutting when it is determined that the spacing between any adjacent products 130 does not meet the cutting requirements. Example 3

[0080] This embodiment discloses a method for applying film to multiple products, including the following steps:

[0081] Multiple products 130 are attached side-by-side and spaced apart on the base film 120 on the film holder 110 to obtain the test product; when attaching the products 130 to the base film, they can be attached manually or by using a known attachment robot to attach multiple products to the base film, which is not limited here.

[0082] To determine whether the spacing between adjacent products 130 on the test item meets the cutting requirements, the cutting requirement is that when the cutting mechanism 300 cuts a product 130 according to the set cutting start and cutting end positions, it will not cut its adjacent products 130. This determination can be achieved manually using measuring tools and comparing the distance with a distance threshold. Alternatively, it can be achieved through image recognition, similar to Embodiment 1 above.

[0083] When it is determined that the spacing between adjacent products 130 on the product to be tested meets the requirements, it is placed into the qualified product box. In practice, the qualified product to be tested can be placed into the qualified product box manually, or it can be done by attaching robot.

[0084] When it is determined that the spacing between adjacent products 130 on the test item does not meet the requirements, an anomaly is handled. The anomaly handling can be set as needed. For example, the test item that does not meet the requirements can be placed in the unqualified material box; or, it can be placed in the film peeling machine to separate the product from the base film and then re-apply the film. There is no limitation here. Example 4

[0085] This embodiment discloses a cutting control device 400, including a memory and a processor. The memory stores a program that can be executed by the processor. When the program is executed, it implements the multi-piece product cutting method or the multi-piece product film application method as described above.

[0086] This invention has many other embodiments, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this invention.

Claims

1. A method of cutting a multi-piece product, characterized by, The method comprises the following steps: controlling a cutting table to fix a to-be-cut piece thereon, the to-be-cut piece comprising a bottom film and a plurality of products attached side by side and at intervals on the bottom film; determining, through image recognition, whether the distance between adjacent products in the to-be-cut piece meets the cutting requirement, and when the distance between adjacent products meets the cutting requirement, the cutting mechanism will not cut the adjacent product when cutting one product according to the set cutting start position and cutting end position; controlling the cutting mechanism to cut the products one by one when it is determined that the distance between adjacent products meets the cutting requirement; suspending cutting when it is determined that the distance between adjacent products does not meet the cutting requirement; determining that the distance between adjacent products meets the cutting requirement when it is determined that the distance between adjacent products is not less than a distance threshold value; determining that the distance between adjacent products does not meet the cutting requirement when it is determined that the distance between adjacent products is less than the distance threshold value; the distance threshold value is determined according to the following formula: wherein L is a distance threshold, R is a cutter radius of the cutting mechanism, H is a thickness of the product, h is a cutting depth of the cutter on the base film, and m is a set control amount. the product front reservation amount for determining the cutting start position and the product rear reservation amount for determining the cutting end position are L / 2.

2. The multi-piece product cutting method of claim 1, wherein: Before determining the distance between adjacent products, determining, through image recognition, whether the long side or the short side of each product on the to-be-cut piece is parallel, and if it is determined that the long side or the short side of adjacent products is parallel, then determining the distance between adjacent products, and if it is determined that the long side or the short side of adjacent products is not parallel, then stopping the determination of the distance between adjacent products.

3. The multi-piece product cutting method of claim 2, wherein: When it is determined that the long side or the short side of each product is parallel, determining, through image recognition, whether the long side or the short side of the product extends along the X-axis direction or the Y-axis direction, and if so, determining the distance between adjacent products, and if not, rotating the cutting table to make the long side or the short side of the product extend along the X-axis direction or the Y-axis direction before determining the distance between adjacent products.

4. The method of claim 1-3, wherein: Before controlling the cutting mechanism to cut, controlling the main shaft to operate at a predetermined cutting speed, and determining whether the vibration values detected by the vibration detection components close to both ends of the main shaft are all not more than a vibration threshold value, and if so, determining that the main shaft is normal and continuing cutting, and if not, determining that the main shaft is abnormal and stopping cutting.

5. The multi-piece product cutting method of claim 4, wherein: The vibration detection components comprise axial detection sensors and radial detection sensors.

6. A multi-piece product cutting system characterized by, comprise: a fixing unit for controlling a cutting table to fix a to-be-cut piece thereon, the to-be-cut piece comprising a bottom film and a plurality of products attached side by side and at intervals on the bottom film; an image recognition unit for determining whether the distance between adjacent products meets the cutting requirement, and when the distance between adjacent products meets the cutting requirement, the cutting mechanism will not cut the adjacent product when cutting one product according to the set cutting start position and cutting end position; and for determining that the product front reservation amount for determining the cutting start position and the product rear reservation amount for determining the cutting end position are L / 2; a cutting unit for controlling the cutting mechanism to cut the products one by one when it is determined that the distance between adjacent products meets the cutting requirement, and for determining that the distance between adjacent products meets the cutting requirement when it is determined that the distance between adjacent products is not less than a distance threshold value; The distance threshold is determined according to the following formula: Wherein, L is the distance threshold, R is the cutter radius of the cutting mechanism, H is the thickness of the product, h is the cutting depth of the cutter on the bottom film, and m is the set control amount. The alarm unit is configured to suspend the cutting when it is determined that the distance between the adjacent products does not meet the cutting requirement, and determine that the distance between the adjacent products does not meet the cutting requirement when it is determined that the distance between the adjacent products is less than the distance threshold.

7. A method of applying a film to a multi-piece product, characterized by, The method comprises the following steps: Attaching a plurality of products side by side and at intervals on the bottom film on the film frame to obtain a product to be detected; Determining whether the distance between the adjacent products on the product to be detected meets the cutting requirement, and the cutting mechanism will not cut the adjacent product when cutting one product according to the set cutting start position and cutting end position if the distance between the adjacent products meets the cutting requirement; Placing the product to be detected into a qualified product box when it is determined that the distance between the adjacent products meets the requirement; Abnormal processing when it is determined that the distance between the adjacent products does not meet the requirement; Determining that the distance between the adjacent products meets the cutting requirement when it is determined that the distance between the adjacent products is not less than the distance threshold; Determining that the distance between the adjacent products does not meet the cutting requirement when it is determined that the distance between the adjacent products is less than the distance threshold; The distance threshold is determined according to the following formula: Wherein, L is the distance threshold, R is the cutter radius of the cutting mechanism, H is the thickness of the product, h is the cutting depth of the cutter on the bottom film, and m is the set control amount. The product front reservation amount for determining the cutting start position and the product rear reservation amount for determining the cutting end position are L / 2.

8. A cutting control device comprising a memory and a processor, the memory storing a program executable by the processor, characterized in that: The program is executed to implement the multi-piece product cutting method according to any one of claims 1-5 or the multi-piece product film attaching method according to claim 7.

Images