Separation device and magnetic force detector

Abstract

The utility model provides a separating device and a magnetic detector. The separating device comprises a covering plate, a magnetic carrier plate and a separating part, a substrate placing area is defined on the upper surface of the magnetic carrier plate; m through holes are formed in the positions, not defined as the substrate placement areas, of the two opposite sides of the magnetic carrier plate respectively; the cover plate covers the upper surface of the magnetic carrier plate and the cover plate and the edge of the magnetic carrier plate are magnetically adsorbed as a whole; the separating part is arranged below the magnetic carrier plate; n lug bosses are arranged on the upper surface of the separating part; the two opposite sides of the magnetic carrier plate are each correspondingly provided with at least one protruding part. The sectional area of each lug boss is smaller than or equal to that of the corresponding through hole; the height of the protruding part is larger than the thickness of the magnetic carrier plate, and the magnetic carrier plate and the covering plate are separated based on the height of the protruding part penetrating through the through hole. According to the utility model, the cover plate and the magnetic carrier plate are directly disassembled through the separation part, so that the separation steps are effectively reduced, and the mechanical automation is conveniently realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of semiconductor package detection, especially to a separating device and a magnetic force detector. BACKGROUND

[0002] In 2.5D and 3D packaging technology, flip chip attach (FCA) technology is often used. FCA technology aligns and attaches the solder points on the chip with the pads on the substrate, then uses a solder reflow process to form solder balls between the chip and the substrate pads, and finally fills the gap between the chip and the substrate with underfill glue, thereby realizing electrical, thermal and mechanical connection between the chip and the substrate.

[0003] Therefore, in order to ensure accurate alignment during the chip mounting process, the substrate needs to be plasticized by an auxiliary plasticizing device to ensure that the solder points on the substrate chip and the pads on the substrate are aligned and attached to the reflow soldering process without affecting the alignment effect due to deformation, etc. Figure 1 As shown in the figure, the auxiliary plasticizing device 1 includes a cover plate 11 and a magnetic boat plate 12. The magnetic boat plate 12 is provided with a plurality of plasticizing pins 121 for fixing and plasticizing the substrate (not shown in the figure). After placing the pads of the substrate upwards on the upper surface of the magnetic boat plate 12, the cover plate 11 is placed on the magnetic boat plate 12 with the edges magnetically attracted to fix the substrate and prevent displacement. Since the cover plate 11 is a frame structure, the pads of the substrate can still be exposed in the middle to facilitate subsequent chip mounting and reflow soldering process. At the same time, since the cover plate 11 and the magnetic boat plate 12 are magnetically attracted, it is also convenient to disassemble the substrate after the reflow soldering process.

[0004] The magnetic boat plate 12 and the cover plate 11 need to be repeatedly disassembled and used, and the current disassembly means is to pry the cover plate 11 first after the reflow soldering process, and then use a magnetic attraction device to attract the magnetic boat plate 12 down. The whole process is complicated to operate.

[0005] It should be noted that the above introduction of the technical background is only to facilitate a clear and complete description of the technical solutions of the present application, and to facilitate the understanding of those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art just because they are described in the background section of the present application. UTILITY MODEL CONTENT

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide a separating device and a magnetic force detector to solve the problem of complex separating steps of the magnetic boat plate and the cover plate in the prior art.

[0007] In order to achieve the above object and other related objects, the utility model provides a separating device for separating a magnetic carrier plate and a cover plate, comprising: a cover plate, a magnetic carrier plate and a separating component;

[0008] The upper surface of the magnetic carrier plate defines a substrate placement area; the opposite sides of the magnetic carrier plate and positions not defined as the substrate placement area are respectively provided with m penetrating holes; m is an integer greater than or equal to 1;

[0009] The cover plate covers the upper surface of the magnetic carrier plate, and the cover plate and the edge of the magnetic carrier plate are magnetically adsorbed as a whole;

[0010] The separating component is arranged below the magnetic carrier plate; the upper surface of the separating component is provided with n protruding parts; n is an integer greater than or equal to 2 and less than or equal to 2m; at least one protruding part is correspondingly arranged on each of the opposite sides of the magnetic carrier plate; the cross-sectional area of each protruding part is less than or equal to the cross-sectional area of the corresponding penetrating hole; the height of the protruding part is greater than the thickness of the magnetic carrier plate, and the magnetic carrier plate and the cover plate are separated based on the height of the protruding part penetrating the penetrating hole.

[0011] Optionally, the separating component further comprises a substrate; the upper surface of the separating component is provided with 2m protruding parts; m protruding parts are arranged on the opposite sides of the substrate and correspond to the penetrating holes.

[0012] Optionally, the separating device further comprises a displacement mechanism; the displacement mechanism contacts the lower surface of the separating component, and the distance between the protruding part and the cover plate is adjusted based on the displacement mechanism.

[0013] Optionally, the displacement mechanism comprises a receiving plate and an adjusting rod; the upper surface of the receiving plate is connected to the lower surface of the separating component, and the lower surface is connected to the upper end surface of the adjusting rod; the height of the displacement mechanism is adjusted based on the adjusting rod.

[0014] Optionally, the displacement mechanism further comprises a bearing, four stabilizing struts and four connecting rods; the bearing is arranged on the periphery of the adjusting rod; each of the stabilizing struts and each of the connecting rods is correspondingly arranged; the first end of each of the connecting rods is connected to the periphery of the bearing, and the second end is connected to the side surface of the corresponding stabilizing strut; the four stabilizing struts are arranged on the same reference plane and have equal distances from the bearing.

[0015] In order to achieve the above object and other related objects, the utility model provides a magnetic force detector for detecting the magnetic force between the separated magnetic carrier plate and cover plate, the magnetic force detection mechanism comprises a pressure sensing mechanism and the above separating device; the pressure sensing mechanism is arranged below the separating component.

[0016] Optionally, when the separating device further comprises a displacement mechanism, and the displacement mechanism comprises a receiving plate and an adjusting rod, the pressure sensing mechanism is arranged on the upper end surface of the adjusting rod.

[0017] Optionally, the magnetic force detector further comprises a stepper motor, a transmission shaft of the stepper motor is connected to an eccentric wheel, the eccentric wheel abuts against the lower end surface of the adjusting rod, and the displacement amount of the adjusting rod in the height direction is adjusted based on the rotation of the eccentric wheel.

[0018] Optionally, the magnetic force detector further comprises a conveying belt, the conveying belt defines a separating area, the area of the separating area is greater than or equal to the area of one magnetic carrier plate, and the conveying belt is provided with m through holes on both sides of the separating area and in the direction parallel to the conveying direction, the positions of the through holes are arranged in one-to-one correspondence with the positions of the through holes.

[0019] Optionally, the magnetic force detector comprises two conveying tracks, both the conveying tracks extend along the conveying direction, and a preset interval is arranged between the two conveying tracks, the preset interval is equal to the width of the side of the magnetic carrier plate in the non-conveying direction, the two conveying tracks are oppositely provided with grooves, the width of the groove is greater than or equal to the thickness of the magnetic carrier plate, the side of the magnetic carrier plate is embedded into the corresponding groove, and the moving structure is arranged in the groove.

[0020] Optionally, the side of the magnetic carrier plate parallel to the conveying direction is further provided with a stepped structure, the groove is correspondingly arranged as a stepped groove, and the surface of the stepped structure is attached to the surface of the stepped groove.

[0021] As described above, the separating device and the magnetic force detector have the following beneficial effects:

[0022] 1. The separating device directly disassembles the cover plate and the magnetic carrier plate through the separating component, effectively reduces the separating steps, and facilitates the realization of mechanical automation.

[0023] 2. The magnetic force detector is used for detecting whether the magnetic force between the separated magnetic carrier plate and the cover plate reaches the preset magnetic force, avoiding the magnetic force attenuation that may occur due to the repeated disassembly and multiple entry into the high-temperature environment of the magnetic carrier plate and the cover plate, and thus improving the welding yield between the chip and the substrate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure schematic view of an auxiliary plastic device is shown.

[0025] Figure 2 A structure schematic view of the separating device is shown.

[0026] Figure 3 A structure schematic view of a displacement mechanism of the present application is shown.

[0027] Figure 4 A structure schematic view of a magnetic force detector of the present application is shown.

[0028] Figure 5 A waveform diagram schematic view of reading pressure based on the magnetic force detector in the present application is shown.

[0029] Figure 6 A structure schematic view of a stepping motor of the present application is shown.

[0030] Figure 7 A structure schematic view of a transmission belt of the present application is shown.

[0031] Element number explanation

[0032] 1 auxiliary plastic device

[0033] 11 cover plate

[0034] 12 magnetic carrier plate

[0035] 121 plastic column

[0036] 2 magnetic force detector

[0037] 21 separation device

[0038] 211 magnetic carrier plate

[0039] 2111 substrate placement area

[0040] 2112 through hole

[0041] 212 cover plate

[0042] 2121 contact portion

[0043] 213 separation component

[0044] 2131 substrate

[0045] 2132 protruding portion

[0046] 214 displacement mechanism

[0047] 2141 bearing plate

[0048] 2142 adjustment rod

[0049] 2143 bearing

[0050] 2144 connecting rod

[0051] 2145 stabilizing strut

[0052] 22 pressure analysis device

[0053] 23 stepper motor

[0054] 24 conveyor belt

[0055] 241 separation area

[0056] 2411 through hole

[0057] 242 conveying track DETAILED DESCRIPTION

[0058] The embodiments of the present application will be described herein below with reference to specific drawings. Other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification. The present application can also be implemented or applied in other different embodiments, and the details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0059] Please refer to Figures 2 to 7 . It is to be noted that the drawings provided in the present embodiment only schematically illustrate the basic concept of the present application, and thus the drawings only show the components related to the present application instead of showing the number, shape and size of the components in actual implementation. The shape, number and proportion of the components in actual implementation can be randomly changed, and the layout of the components can be more complicated.

[0060] As shown in Figure 2 , the present embodiment provides a separation device 2 for separating a magnetic carrier plate 211 and a cover plate 212, which comprises the cover plate 212, the magnetic carrier plate 211 and a separation component 213.

[0061] As shown in Figure 2 , the cover plate 212 covers the upper surface of the magnetic carrier plate 211; and the cover plate 212 and the magnetic carrier plate 211 are magnetically adsorbed as a whole.

[0062] As shown in Figure 2 , the magnetic carrier plate 211 defines a substrate placement area 2111; and m through holes 2112 are respectively arranged at the positions of the opposite sides of the magnetic carrier plate 211 which are not defined as the substrate placement area 2111; m is an integer greater than or equal to 1.

[0063] In the embodiment, the magnetic carrier plate 211 is provided with two substrate placing areas 2111, and the substrate (not shown in the figure) to be arranged will be arranged in the substrate placing area 2111, and the through hole 2112 is arranged along the periphery of the chip, facilitating the subsequent separation of the cover plate 212 covering the chip by the separation component 213.

[0064] It should be noted that the position of the through hole 2112 can be part of magnetic adsorption (such as Figure 2 The upper surface of the protruding part 2132 contacts the contact part 2121 of the lower surface of the cover plate 212), or not as part of magnetic adsorption; when the through hole 2112 is located at the position of the through hole 2112, the through hole 2112 needs to be considered to penetrate the magnetic plate material, so the position of the through hole 2112 does not have a magnetic force, and a plurality of through holes 2112 with a certain distance are preferably arranged to ensure that each through hole 2112 does not affect the adsorption force. The through hole 2112 can also not be the position of magnetic adsorption, at which time the shape is randomly arranged and does not directly affect the magnetic force. In the embodiment, the two sides of the magnetic carrier plate 211 are respectively provided with 4 through holes 2112, and a certain distance is arranged between each through hole 2112. In fact, the number and shape of the through hole 2112 are not required, as long as the cover plate 212 can be adsorbed without affecting the cover plate 212, and the separation component 213 is arranged to facilitate separation, which is within the protection scope of the embodiment.

[0065] As shown in Figure 2 The separation component 213 is arranged below the magnetic carrier plate 211; the upper surface of the separation component 213 is provided with n protruding parts 2132; n is an integer greater than or equal to 2 and less than or equal to 2m; at least one protruding part 2132 is arranged on the opposite sides of the magnetic carrier plate 211 respectively; the cross-sectional area of each protruding part 2132 is less than or equal to the cross-sectional area of the corresponding through hole, so that the protruding part 2132 can smoothly pass through the corresponding through hole 2112, and the height of the protruding part 2132 is greater than the thickness of the magnetic carrier plate 211, so as to lift the cover plate 212 by adjusting the penetration depth of the protruding part 2132; the protruding part 2132 penetrates the through hole 2112 and contacts the cover plate 212 by adjusting the penetration depth of the protruding part 2132, and adjusts the applied pressure to separate the magnetic carrier plate 211 and the cover plate 212 based on the height of the protruding part 2132 penetrating the through hole 2112.

[0066] Specifically, in the embodiment, the separation component 213 further comprises a substrate 2131; in the embodiment, the upper surface of the separation component 213 is provided with 2m protruding parts 2132; m protruding parts 2132 are arranged on the opposite sides of the substrate 2131 and correspond to the through holes 2112.

[0067] It should be noted that the structure of the separating component 213 is not limited to the embodiment. In another embodiment, the separating component 213 does not have the substrate 2131, but the protruding portions 2132 are directly arranged on a telescopic rod or other structure, and the telescopic rod is adjusted so that the protruding portions 2132 pass through the through holes 2112 and contact the cover plate 212. By applying force, the magnetic carrier plate 211 and the cover plate 212 can still be separated.

[0068] It should be further noted that the shape of the protruding portions 2132 is not limited to the embodiment and can be any shape. Meanwhile, the number of the protruding portions 2132 is also not limited, as long as at least one protruding portion 2132 is arranged on each of the opposite sides of the magnetic carrier plate 211 to ensure that the two sides are balanced and the cover plate 212 is lifted. In the embodiment, the magnetic carrier plate 211 has four through holes 2112 on each side, and the number of the protruding portions 2132 of the separating component 213 is at least greater than 1 on each side of the magnetic carrier plate 211, so that the protruding portions 2132 can finally apply upward force to both sides of the cover plate 212. Meanwhile, in order to avoid uneven force on both sides, it is preferred that the number of the protruding portions 2132 on both sides is the same and the positions are symmetrically arranged. In the embodiment, it is more preferred that the number of the protruding portions 2132 is the same as the number of the through holes 2112 and is arranged correspondingly, so that the force is more uniform and the separation efficiency is improved.

[0069] It should be noted that the shape of the magnetic carrier plate 211 is not limited to the embodiment and the position of the through holes 2112 is not limited to the embodiment. As long as the magnetic carrier plate 211 is arranged with the through holes 2112 on the periphery of the substrate placement area 2111 to cooperate with the separating component 213 for separation, it is within the protection scope of the embodiment. In another example, the magnetic carrier plate 211 is square, and each of the four sides is arranged with m through holes. The upper surface of the separating component is arranged with 4m protruding portions, and each of the through holes on the magnetic carrier plate 211 is correspondingly arranged.

[0070] Specifically, the separating device 21 further comprises a displacement mechanism 214. The displacement mechanism 214 contacts the lower surface of the separating component 213 and adjusts the distance between the protruding portions 2132 and the cover plate 212 based on the displacement mechanism 214.

[0071] As an example, as shown in Figure 3 The displacement mechanism 214 comprises a receiving plate 2141 and an adjusting rod 2142.

[0072] As a further example, the upper surface of the receiving plate 2141 connects the lower surface of the separating component 213, the lower surface connects the upper end surface of the adjusting rod 2142, the height of the displacement mechanism 214 is adjusted based on the adjusting rod 2142, and the separating component 213 is moved along the direction in which the height of the adjusting rod 2142 is adjusted. The upper end surface of the adjusting rod 2142 has a change in height relative to the reference plane, the height of the displacement mechanism 214 is adjusted based on the adjusting rod 2142, and the penetration depth of the protruding portion 2132 is adjusted.

[0073] In the present embodiment, as shown in Figure 3 The displacement mechanism 214 further includes a bearing 2143, four stabilizing struts 2145, and four connecting rods 2144. In the present embodiment, the bearing 2143 is disposed on the periphery of the adjusting rod 2142 to fix the moving direction of the adjusting rod 2142 and to keep it stable and reduce damage caused by movement. Each stabilizing strut 2145 is disposed in one-to-one correspondence with each connecting rod 2144. The first end of each connecting rod 2144 is connected to the periphery of the bearing 2143, and the second end is connected to the side surface of the corresponding stabilizing strut 2145. The four stabilizing struts 2145 are disposed on the same reference plane and have equal distances from the bearing 2143. The stability of the up-and-down movement of the adjusting rod 2142 is ensured by disposing the stabilizing struts 2145 around the periphery and stabilizing the bearing 2143 through the connecting rods 2144. The upper surface of the receiving plate 2141 connects the lower surface of the separating component 213, and the up-and-down movement of the adjusting rod 2142 drives the up-and-down movement of the receiving plate 2141. In the case where the magnetic carrier plate 211 and the cover plate 212 need to be disassembled, the receiving plate 2141 is lifted upward to ensure that the protruding portion 2132 contacts the cover plate 212 and provides a certain upward force.

[0074] It should be noted that the displacement mechanism 214 is not limited to the present embodiment, and any device that can drive the separating component 213 is within the scope of protection of the present embodiment.

[0075] It should be noted that, in addition to the displacement mechanism 214 provided in the present embodiment, the separating component 213 in the separating device 21 provided in the present embodiment can also be disassembled from the cover plate 212 by manually providing an upward force, or other ways of providing an upward force to disassemble the cover plate 212, which are not limited to the present embodiment.

[0076] In order to ensure that the chip is correctly adhered to the substrate during the entire reflow soldering process, the magnetic carrier plate 211 and the cover plate 212 need to be fixed and work in a high temperature environment during the entire process. Therefore, the magnetic carrier plate 211 and the cover plate 212 need to be repeatedly disassembled and assembled for use. However, due to long-term baking work, the magnetic beads in the magnetic carrier plate may gradually lose magnetism due to high temperature, which may weaken the overall adsorption force, affect the shaping effect of the substrate, cause abnormal welding in subsequent processes, and affect the quality and reliability of the final product.

[0077] Based on this, as shown in Figure 4 The embodiment also provides a magnetic force detector 2 for detecting the magnetic force between the separated magnetic carrier plate 211 and the cover plate 212, which comprises a pressure sensing mechanism (not shown in the figure) and the separation device 21 described above.

[0078] As shown in Figure 4 The pressure sensing mechanism is arranged below the separation component 213 and receives the pressure of the separation component 213.

[0079] Specifically, when the separation device 21 further comprises a displacement mechanism 214, and the displacement mechanism 214 comprises a receiving plate 2141 and an adjusting rod 2142, the pressure sensing mechanism is arranged on the upper end surface of the adjusting rod 2142 and receives the pressure of the receiving plate 2141.

[0080] In the embodiment, the upper end surface of the adjusting rod 2142 is provided with a pressure sensing mechanism, which senses the pressure change of the upper end surface of the adjusting rod 2142 to represent the force change of the receiving plate 2141 (i.e. the force change of the corresponding separation component 213); as Figure 5As shown, the pressure is read out by the pressure analysis device 22: when the protruding portion 2132 has not yet contacted the cover plate 212, the magnetic force exists between the cover plate 212 and the magnetic carrier plate 211, at which time the pressure sensing mechanism has not yet fed back the pressure of the contact; and when the protruding portion 2132 contacts and starts to exert an upward force on the cover plate 212 against the magnetic force and has not yet separated the magnetic carrier plate 211 from the cover plate 212, at which time the pressure sensing mechanism has already fed back the pressure of the contact. By detecting the magnitude of the pressure fed back on the pressure sensing mechanism, it can be obviously found that the stronger the magnetic force is, the greater the pressure required for the separation is. Similarly, the minimum magnetic force required for each pair of cover plate 212 and magnetic carrier plate 211 to complete the industrial production can be set as the preset magnetic force, and the pressure sensing mechanism is used to continuously detect whether the maximum pressure (when just contacting the cover plate) during the separation process reaches the preset magnetic force, and if not, it is considered that the magnetism of this pair of cover plate 212 and magnetic carrier plate 211 is insufficient and needs to be replaced, avoiding subsequent problems such as difficulty in ensuring plasticity of the substrate affecting the effect of the welding point due to insufficient magnetism. When it is considered that this pair of cover plate 212 and magnetic carrier plate 211 cannot continue to participate in the production and manufacturing process, it needs to be replaced or adjusted, avoiding subsequent situations such as failure of auxiliary positioning affecting manufacturing precision due to insufficient magnetic force.

[0081] It should be noted that the magnetic force detector 2 provided in the embodiment can be arranged before the reflow soldering process or after the reflow soldering process. When arranged before the reflow soldering process, the cover plate 212 and the magnetic carrier plate 211 that do not reach the preset magnetic force can be directly replaced; when arranged after the reflow soldering process, the welding between the chip and the substrate needs to be checked to avoid welding failure and the like, and the cover plate 212 and the magnetic carrier plate 211 that do not reach the preset magnetic force still need to be replaced.

[0082] Specifically, in the embodiment, the magnetic force detector 2 further comprises a stepping motor 23, as shown in Figure 6 The transmission shaft of the stepping motor 23 is connected to an eccentric wheel; the eccentric wheel abuts against the lower end face of the adjusting rod 2142, and the displacement amount of the adjusting rod 2142 in the height direction is adjusted based on the rotation of the eccentric wheel. The adjusting rod 2142 is displaced up and down and reciprocated by the stepping motor 23, so as to intermittently lift the cover plate 212 by the protruding portion 2132.

[0083] Specifically, as shown in Figure 7As shown, in the first embodiment, in order to meet the needs of industrial automation and facilitate the detection of the magnetic force detector 2 of the present embodiment on multiple pairs of cover plates 212 and magnetic carrier plates 211 in industrial production, the magnetic force detector 2 further comprises a conveyor belt 24. The conveyor belt defines a separation area 241; the area of the separation area 241 is greater than or equal to the area of one magnetic carrier plate 211; and the conveyor belt is provided with m through holes 2411 on both sides parallel to the direction of the transmission direction in the separation area 241; the positions of the through holes 2411 are one-to-one corresponding to the positions of the through holes 2112, which ensures that the protruding part 213 can pass through the through hole 2112 by aligning the protruding part 2132. A plurality of magnetic carrier plates 211 are arranged along the transmission direction, and are separated by the separation mechanism 213 (the protruding part 2132) when the magnetic carrier plates 211 are transmitted to the separation area 241 position; the setting of the conveyor belt 24 can automatically separate the multiple magnetic carrier plates 211 by the automatic equipment, and can quickly detect the magnetic size of the edge position between each pair of cover plates 212 and the magnetic carrier plate 211.

[0084] In the second embodiment, the magnetic force detector 2 comprises two conveyor tracks 242; both conveyor tracks 242 extend along the transmission direction and are provided with a predetermined interval between the two conveyor tracks 242; the predetermined interval is equal to the width of the side of the magnetic carrier plate 211 in the non-transmission direction (at this time, multiple magnetic carrier plates 211 can be arranged in the transmission direction); the opposite sides of the two conveyor tracks 242 are provided with grooves (not shown in the figure); the width of the groove is greater than or equal to the thickness of the magnetic carrier plate 211, and the side edge of the magnetic carrier plate 211 is embedded in the corresponding position of the groove, that is, the two side edges of the magnetic carrier plate 211 can be clamped by embedding the grooves on both sides, which facilitates the subsequent protruding part 2132 to penetrate the through hole 2112 on the magnetic carrier plate 211; the groove is provided with a moving structure and the moving structure is arranged at the position where the magnetic carrier plate 211 contacts the groove, such as a moving structure including but not limited to a roller, to push the magnetic carrier plate 211 to move along the transmission direction. In the second embodiment, the two side edges of the multiple magnetic carrier plates 211 are clamped by the two conveyor tracks and pushed along the transmission direction, which can be understood as a horizontal "hanging basket" type of conveying method; compared with the need to set a larger area conveyor belt, the setting of the conveyor track can reduce the material, and there is no need to set through holes 2411 on both sides of the conveyor belt.

[0085] In this embodiment, when a stepped structure is provided on the side of the magnetic carrier plate 211 parallel to the transmission direction (that is, the side clamped in the groove), the groove is set as a stepped groove; the surface of the stepped structure is completely fitted with the surface of the stepped groove. At this time, by setting the stepped shape, the contact area between the groove and the clamping position of the magnetic carrier plate 211 is increased, increasing the friction force and also helping to maintain the stability of the magnetic carrier plate 211 during transmission and movement. Therefore, in this embodiment, the shape and number of steps of the stepped structure are not limited; any arrangement that ensures the surface of the stepped structure can fit with the surface of the stepped groove is within the protection scope of this embodiment.

[0086] It should be noted that when the two sides of the magnetic carrier plate 211 are clamped by the grooves, care should be taken to avoid the through hole 2112 being clamped inside the grooves. Alternatively, a conveyor belt and grooves can be used simultaneously for transmission to further ensure the stability of the transmission process. However, the actual transmission method is not limited to this embodiment.

[0087] In summary, this utility model provides a separation device and a magnetic detector. The separation device includes a cover plate, a magnetic carrier plate, and a separation component. The upper surface of the magnetic carrier plate defines a substrate placement area. m through holes are respectively provided on opposite sides of the magnetic carrier plate at positions not defined as substrate placement areas. The cover plate covers the upper surface of the magnetic carrier plate, and the edges of the cover plate and the magnetic carrier plate are magnetically adsorbed as a single unit. The separation component is located below the magnetic carrier plate. n protrusions are provided on the upper surface of the separation component. At least one protrusion is provided on each opposite side of the magnetic carrier plate. The cross-sectional area of ​​each protrusion is less than or equal to the cross-sectional area of ​​the corresponding through hole. The height of the protrusion is greater than the thickness of the magnetic carrier plate. The magnetic carrier plate and the cover plate are separated based on the height of the protrusions passing through the through holes. This utility model directly disassembles the cover plate and the magnetic carrier plate using the separation component, effectively reducing the separation steps and facilitating mechanical automation. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0088] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A separating device for separating a magnetic carrier plate and a cover plate, characterized in that The separating device comprises a cover plate, a magnetic carrier plate and a separating component; An upper surface of the magnetic carrier plate defines a substrate placement area; opposite sides of the magnetic carrier plate and positions not defined as the substrate placement area are respectively provided with m through holes; m is an integer greater than or equal to 1; The cover plate covers the upper surface of the magnetic carrier plate and is magnetically adsorbed with the edges of the magnetic carrier plate as a whole; The separating component is arranged below the magnetic carrier plate; an upper surface of the separating component is provided with n protrusions; n is an integer greater than or equal to 2 and less than or equal to 2m; at least one protrusion is respectively arranged on each of the opposite sides of the magnetic carrier plate; a cross-sectional area of each protrusion is less than or equal to a cross-sectional area of the corresponding through hole; a height of the protrusion is greater than a thickness of the magnetic carrier plate, and the magnetic carrier plate and the cover plate are separated based on the height of the protrusion passing through the through hole.

2. The separation device of claim 1, wherein: The separating component further comprises a substrate; an upper surface of the separating component is provided with 2m protrusions; m protrusions are arranged on opposite sides of the substrate and correspond to the through holes.

3. The separation device of claim 1, wherein: The separating device further comprises a displacement mechanism; the displacement mechanism contacts a lower surface of the separating component and adjusts a distance between the protrusions and the cover plate based on the displacement mechanism.

4. The separation device of claim 3, wherein: The displacement mechanism comprises a receiving plate and an adjusting rod; an upper surface of the receiving plate is connected to a lower surface of the separating component, a lower surface is connected to an upper end surface of the adjusting rod, and a height of the displacement mechanism is adjusted based on the adjusting rod.

5. The separation device of claim 4, wherein: The displacement mechanism further comprises a bearing, four stabilizing struts and four connecting rods; the bearing is arranged on the periphery of the adjusting rod; each of the stabilizing struts and each of the connecting rods is arranged one-to-one; a first end of each of the connecting rods is connected to the periphery of the bearing, and a second end is connected to a side surface of the corresponding stabilizing strut; the four stabilizing struts are arranged on the same reference plane and have equal distances from the bearing.

6. A magnetic force detector for detecting a magnetic force between a magnetic carrier sheet and a cover sheet, characterized by: The magnetic force detection mechanism comprises a pressure sensing mechanism and the separating device according to any one of claims 1-5; the pressure sensing mechanism is arranged below the separating component.

7. The magnetic force detector according to claim 6, characterized by: When the separating device further comprises a displacement mechanism and the displacement mechanism comprises a receiving plate and an adjusting rod, the pressure sensing mechanism is arranged on an upper end surface of the adjusting rod.

8. The magnetic force detector according to claim 7, characterized by: The magnetic force detector further comprises a stepper motor; a transmission shaft of the stepper motor is connected to an eccentric wheel; the eccentric wheel abuts a lower end surface of the adjusting rod, and the displacement amount of the adjusting rod in the height direction is adjusted based on the rotation of the eccentric wheel.

9. The magnetic force detector according to claim 6, characterized by: The magnetic force detector further comprises a conveyor belt; the conveyor belt defines a separation area; an area of the separation area is greater than or equal to an area of one of the magnetic carrier plates, and the conveyor belt is provided with m through holes on two side edges parallel to the direction of the transmission direction in the separation area; the positions of the through holes correspond one-to-one to the positions of the through holes.

10. The magnetic force detector according to claim 6 or 9, characterized by: The magnetic force detector comprises two conveying tracks; both of the conveying tracks extend along a conveying direction and are provided with a preset interval; the preset interval is equal to the width of the side of the magnetic carrier plate in a non-conveying direction; the two conveying tracks are oppositely provided with grooves; the width of the groove is greater than or equal to the thickness of the magnetic carrier plate, and the side of the magnetic carrier plate is embedded in the groove at a corresponding position; a moving structure is arranged in the groove, and the moving structure is arranged at a position where the magnetic carrier plate is in contact with the groove.

11. The magnetic force detector according to claim 10, characterized by: The side of the magnetic carrier plate parallel to the direction of the conveying direction is further provided with a stepped structure; the groove is correspondingly provided as a stepped groove; the surface of the stepped structure is attached to the surface of the stepped groove.

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