Material box feeding device of die bonder

Abstract

The invention belongs to the technical field of die bonders, and particularly relates to a material box feeding device of a die bonder, which comprises a substrate bin, an automatic feeding lifting mechanism and a pushing mechanism arranged in a feeding rack, the automatic feeding lifting mechanism is used for supporting the substrate bin to move in the Z-axis direction, the pushing mechanism is arranged at the top of the automatic feeding lifting mechanism, and the automatic feeding lifting mechanism is used for supporting the substrate bin to move in the Z-axis direction. The substrate bin comprises a feeding frame and a clamp arranged at the top of the feeding frame, the feeding frame is used for containing a first type of substrate, the clamp is used for containing a second type of substrate, the pushing mechanism is used for pushing the first type of substrate into the die bonder for chip mounting, and the second type of substrate is manually pushed into the die bonder for chip mounting. The problem of chip mounting on a long substrate is solved, mounting on a substrate with the length of two meters can be supported to the maximum extent, and the one-time production length is not smaller than 600 mm.

Description

Technical Field

[0001] The invention belongs to the technical field of crystal bonding machines, and in particular relates to a material box loading device of a crystal bonding machine. Background Art

[0002] A die bonder is a semiconductor device that is mainly used for back-end mounting of semiconductor chips. Its working principle is to fix the chip and the electrical substrate together to form a reliable electrical connection between the chip and the substrate.

[0003] The substrate size that traditional die bonders can support is generally less than 300mm, which cannot meet the die bonding needs of large-sized substrates. Summary of the invention

[0004] In order to solve the above technical problem, that is, to solve the chip mounting problem on a long substrate, the present invention provides the following technical solution:

[0005] A material box loading device for a crystal bonding machine comprises a feeding frame, wherein a substrate material bin, an automatic feeding and lifting mechanism and a pushing mechanism are arranged inside the feeding frame, wherein the automatic feeding and lifting mechanism is used to carry the substrate material bin and move in the Z-axis direction, wherein the pushing mechanism is arranged on the top of the automatic feeding and lifting mechanism, wherein the substrate material bin comprises a feeding frame and a clamp arranged on the top of the feeding frame, wherein the feeding frame is used to accommodate a first type of substrate, and the clamp is used to accommodate a second type of substrate, wherein the pushing mechanism is used to push the first type of substrate into the crystal bonding machine for chip mounting, and wherein the second type of substrate is manually pushed into the crystal bonding machine for chip mounting.

[0006] Furthermore, the loading frame is a cavity of a rectangular structure, with left and right sides being open, and a plurality of layers of supporting strips are arranged on both sides of the cavity of the loading frame, and the supporting strips between the two sides are used to place the first substrate.

[0007] Furthermore, the loading material frame is composed of a cavity enclosed by a material frame bottom plate arranged at the bottom, a material frame side plate arranged at the front side of the material frame bottom plate, a material frame rear plate arranged at the rear side of the material frame bottom plate and an upper plate for pushing the material, and the material frame rear plate is composed of material frame support bars and material frame support columns arranged on both sides respectively, and a material frame support rod column arranged in the middle, wherein a plurality of layers of support bars one are arranged at intervals between the material frame support bars and the material frame support rod columns, and a plurality of layers of support bars two are arranged at intervals between the material frame support columns and the material frame support rod columns, and support bar one of each layer is connected end to end with support bar two; a plurality of layers of support bars three are arranged at intervals from bottom to top on the inner side of the material frame side plate, and the length of support bar three is equal to the sum of the length of support bar one and the length of support bar two.

[0008] Furthermore, a slide rail in the Y-axis direction is arranged on the bottom plate of the material frame, the side plate of the material frame is slidably connected to the bottom plate of the material frame, the bottom of the side plate of the material frame is connected to a slider arranged on the slide rail through a material frame adjustment guide block, and the material frame adjustment guide block is connected to the bottom of the side plate of the material frame; the top of the side plate of the material frame is movably connected to the upper plate for pushing materials, the side plate of the material frame is connected to the upper plate for pushing materials through a material frame width adjustment locking plate, and the material frame width adjustment locking plate is connected with a handle screw.

[0009] Furthermore, a reinforced track movable edge group is arranged on the front side of the top of the pusher upper plate, and the reinforced track movable edge group includes a discharge conveying side plate one, and the discharge conveying side plate one is slidably connected to the discharge conveying upper plate, and a plurality of pressure plates are embedded on the discharge conveying side plate one at intervals, and the pressure plate is connected to the front side of the discharge conveying side plate one through a spring pressure plate, and the top of the pressure plate is higher than the top of the discharge conveying side plate one; a discharge conveying side plate two is arranged on the rear side of the top of the pusher upper plate, and a track baffle is arranged on the top of the discharge conveying side plate two; a rectangular clamp is clamped between the discharge conveying side plate one and the discharge conveying side plate two, and the clamp consists of two rectangular structures of groove two and groove three, and groove two is arranged at the top of groove two.

[0010] Furthermore, the bottom surface of groove two is suspended above the top surface of the pusher upper plate, and the two side surfaces of groove two are respectively in contact with the inner side wall of the discharge conveying side plate one and the inner side wall of the discharge conveying side plate two; the bottom surface area of ​​groove three is larger than the bottom surface area of ​​groove two, the bottom surface of groove three is mounted on the top of groove two, the bottom of groove three is a hollow structure, the bottom of groove three is connected on both sides by a number of transverse baffles, and the two side surfaces of groove three are respectively in contact with the inner side wall of the track baffle and the inner side wall of the pressing plate, and groove three of the clamp is used to clamp the second substrate.

[0011] Furthermore, a baffle structure is provided on the side plate of the material frame near the outlet of the feeding frame, including a baffle and a baffle cylinder mounting plate. The baffle is provided with a cylinder connecting block. The baffle cylinder mounting plate is provided with a cylinder, the cylinder is connected to the cylinder connecting block, and the baffle is provided at the outlet of the feeding frame.

[0012] Furthermore, the automatic loading and lifting mechanism includes a loading base plate, a sliding plate is slidably connected to the loading base plate, triangular mounting seats are arranged at both ends of the sliding plate, a material frame base plate is mounted on the top of the triangular mounting seat, and a substrate silo is arranged on the triangular mounting seat.

[0013] Furthermore, a driving motor mounting plate is connected to the bottom of the feeding bottom plate, a servo motor is arranged on the driving motor mounting plate, a rotating shaft of the servo motor is passed through the bottom of the driving motor mounting plate, and a synchronous wheel 1 is rotatably connected to the rotating shaft of the servo motor;

[0014] The drive motor mounting plate is also provided with a screw rod, the top end of the screw rod is connected to the top of the drive motor mounting plate through a bearing, the screw rod nut connecting block on the screw rod is threadedly connected to the sliding plate, the bottom end of the screw rod is sleeved with a screw rod fixing seat, the screw rod fixing seat is fixed on the feeding bottom plate, and the bottom end of the screw rod is rotatably connected to a synchronous wheel 2;

[0015] The first synchronous wheel is connected with the second synchronous wheel through an outer-surrounding synchronous belt transmission.

[0016] Furthermore, a brake is arranged on the driving motor mounting plate, a rotating shaft is arranged at the bottom of the brake, a synchronous wheel 1 is rotatably connected to the rotating shaft of the brake, and the synchronous wheel 1 is also connected to the synchronous wheel 2 through an outer winding synchronous belt transmission; a hand wheel is arranged at the bottom end of the rotating shaft of the brake.

[0017] Furthermore, the pushing mechanism comprises a pushing plate, on which a first-stage pushing portion group and a second-stage pushing portion group are slidably connected;

[0018] Two sets of synchronous wheels three and idler wheels two are arranged on the top of the push plate, and each set of synchronous wheels three and idler wheels two are connected by a conveyor belt. Two closed-loop stepper motors are arranged on the bottom of the push plate, and each synchronous wheel three is connected to the rotating shaft of a closed-loop stepper motor; the first-stage pusher group and the second-stage pusher group are respectively connected to a conveyor belt.

[0019] Furthermore, a section of the pushing part group includes a pushing buffer seat, which is slidably connected to a guide rod seat, and a linear bearing seat is embedded in the guide rod seat. The two ends of the guide rod in the linear bearing seat are respectively connected to the two sides of the guide rod seat, and the compression spring in the linear bearing seat is connected to the side of the guide rod seat through the compression spring sheet metal; a guide rod cylinder is arranged on the pushing buffer seat, and the guide rod cylinder is connected to the guide rod seat; a pushing piece is connected to the linear bearing seat.

[0020] Furthermore, a photoelectric sensor is arranged on the linear bearing seat, and a buffer induction sheet is arranged on the guide rod seat.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The material box feeding device of the present invention is compatible with two feeding methods. For products less than 600mm, the material box can be automatically transported; for substrates with a length of 600mm-2000mm, the feeding method with a rectangular reinforcing plate fixture can be supported. It has good compatibility with product lengths and meets the needs of rapid switching of different substrate lengths.

[0023] Make one device compatible with multiple products, achieving good economy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure decomposition of the material box loading device of the first die bonder according to a specific embodiment of the present invention, omitting the upper part of the feeding frame;

[0025] Figure 2 It is a structural schematic diagram of a material box loading device of a die bonder according to a specific embodiment of the present invention, omitting the upper part of the feeding frame;

[0026] Figure 3 The schematic diagram of the structure of the material box loading device of the second die bonder of the specific embodiment of the present invention is omitted. The clamp in this embodiment is longer than Figure 1 The length of the fixture in

[0027] Figure 4 for Figure 3 The main view of

[0028] Figure 5 for Figure 3 Rear view of

[0029] Figure 6 for Figure 3 A schematic diagram of the structure of the substrate silo in the embodiment of the present invention, comprising a second type of substrate;

[0030] Figure 7 for Figure 3 A schematic diagram of the structure of the substrate silo in FIG. 2 , omitting the second type of substrate;

[0031] Figure 8 for Figure 6 Rear view of

[0032] Fig. 9 for Figure 6 The main view of

[0033] Fig.10 for Fig. 9 Cross-sectional view in the AA direction;

[0034] Fig.11 for Fig. 9 Cross-sectional view in the BB direction;

[0035] Fig.12 for Fig. 9 The cross-sectional view in CC direction;

[0036] Fig.13 for Figure 6 Left view of;

[0037] Fig.14 for Figure 3 The structural diagram of the automatic feeding and lifting mechanism in FIG.

[0038] Fig.15 for Figure 3 The schematic diagram of the structure of the automatic feeding and lifting mechanism at the first angle, omitting the sliding plate and the triangular mounting seat;

[0039] Fig.16 for Figure 3 The schematic diagram of the structure of the automatic feeding and lifting mechanism at the second angle, omitting the sliding plate and the triangular mounting seat;

[0040] Fig.17 for Figure 3 A schematic diagram of the structure of the pusher mechanism at the first angle;

[0041] Fig.18 for Figure 3 A schematic diagram of the structure of the pusher mechanism at the second angle;

[0042] Fig.19 for Fig.17 The main view;

[0043] Fig. 20 for Fig.19 Cross-sectional view in DD direction;

[0044] Fig.21 for Fig.19 Cross-sectional view in the EE direction.

[0045] Reference numerals:

[0046] 1 is a substrate silo;

[0047] 101 is the material frame bottom plate; 102 is the material frame side plate; 103 is the material frame support bar; 104 is the material frame support rod column; 105 is the material frame support column; 106 is the material push upper plate; 107 is the support bar 1; 108 is the support bar 2; 109 is the support bar 3; 110 is the inlet 1; 111 is the inlet 2;

[0048] 112 is a protrusion 1; 113 is a slide rail 1; 114 is a slider 1; 115 is a guide rail block for adjusting the material frame; 116 is a horizontal plate of the guide rail block; 117 is a vertical plate of the guide rail block; 118 is a protrusion 2; 119 is a locking plate for adjusting the width of the material frame; 120 is a fixing part; 121 is an adjusting part; 122 is a handle;

[0049] 123 is a baffle; 124 is a baffle cylinder mounting plate; 125 is a cylinder connecting block; 126 is a cylinder; 127 is a slide rail three; 128 is a slider three; 129 is a limit sheet metal two; 130 is a material frame support plate;

[0050] 131 is the first discharging conveying side plate; 132 is the first groove; 133 is the pressing plate; 134 is the first compression spring; 135 is the spring pressing plate; 136 is the second discharging conveying side plate; 137 is the track stop bar; 138 is the second groove; 139 is the third groove; 140 is the horizontal stop bar;

[0051] 141 is the second slide rail; 142 is the first limit plate; 143 is the second slider; 144 is the material pushing and width adjustment support block; 145 is the horizontal plate body of the support block; 146 is the vertical plate body of the support block; 147 is the material loading frame; 148 is the fixture; 149 is the adjustment plate; 150 is the second substrate;

[0052] 2 is a material pushing mechanism;

[0053] 201 is a pusher buffer seat; 202 is a compression spring sheet metal; 203 is a slide rail six; 204 is a slider six; 205 is a guide rod cylinder; 206 is a guide rod seat; 207 is a linear bearing seat; 208 is a guide rod; 209 is a compression spring two;

[0054] 210 is a photoelectric sensor; 211 is a buffer induction sheet; 212 is a push sheet 1; 213 is a horizontal sheet; 214 is a longitudinal sheet; 215 is a vertical sheet; 216 is a fixed sheet; 217 is a push sheet 2; 218 is a closed-loop stepper motor; 219 is a slide rail 5; 220 is a slider 5; 221 is a synchronous wheel 3; 222 is an idler wheel 2; 223 is a conveyor belt 2; 224 is a push plate; 225 is a synchronous belt pressing plate; 226 is a belt pressing plate;

[0055] 3 is the automatic feeding and lifting mechanism;

[0056] 301 is a loading bottom plate; 302 is a slide rail four; 303 is a guide rail pad, 304 is a slider four; 305 is a sliding plate; 306 is a triangular mounting seat; 307 is a drive motor mounting plate; 308 is a brake; 309 is a servo motor; 310 is a synchronous wheel one; 311 is a synchronous wheel two;

[0057] 312 is a screw rod; 313 is a screw rod support bearing seat; 314 is a bearing; 315 is a shaft retaining spring; 316 is a screw rod nut connecting block; 317 is a screw rod fixing seat; 318 is a synchronous belt 1; 319 is an idler wheel 1; 320 is a hand wheel; and 4 is a feeding rack. DETAILED DESCRIPTION

[0058] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the protection scope of the present invention.

[0059] It should be noted that the directions or positional relationships indicated by terms such as “center”, “up”, “down”, “horizontal”, “left”, “right”, “front”, “back”, “lateral” and “longitudinal” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0060] Combination Figure 1 , Figure 2 As shown, the present invention provides a material box feeding device for a die bonding machine, the die bonding machine comprises a material box feeding device and a die bonding main machine, the material box feeding device is used to feed the die bonding main machine, that is, to transport substrates to the die bonding main machine. The material box feeding device is arranged upstream of the die bonding main machine.

[0061] The material box feeding device of the present invention is compatible with two feeding methods:

[0062] The first is manual loading through a rectangular fixture 148. This loading method is compatible with substrates with a maximum length of 2000 mm. For substrates with a length of 600 mm-2000 mm, the rectangular fixture 148 is used for loading;

[0063] Secondly, the material is automatically loaded through the loading frame 147 , which is compatible with substrates of smaller lengths and suitable for substrates less than 600 mm, and is automatically transported through the loading frame 147 .

[0064] Combination Figure 1-Figure 5 As shown, the material box feeding device includes:

[0065] The feeder rack 4 is provided with a substrate silo 1, an automatic loading and lifting mechanism 3, and a pushing mechanism 2 inside. The automatic loading and lifting mechanism 3 is used to carry the substrate silo 1 and move in the Z-axis direction. The pushing mechanism 2 is arranged on the top of the automatic loading and lifting mechanism 3. The pushing mechanism 2 is used to push the substrates in the substrate silo 1 into the die bonding host for chip mounting. The feeder rack 4 provides an external door for the substrate silo 1, the automatic loading and lifting mechanism 3, and the pushing mechanism 2. There are reserved openings on the left and right sides of the feeder rack 4 for substrates to enter and exit.

[0066] The substrate silo 1 is mainly used for storing substrates.

[0067] Combination Figure 6-Figure 8 As shown, the substrate silo 1 includes a loading material frame 147, and the loading material frame 147 includes a material frame bottom plate 101 arranged at the bottom, a material frame support strip 103 is arranged at the end of the rear side of the material frame bottom plate 101 close to the left side, a material frame support column 105 is arranged at the end of the rear side of the material frame bottom plate 101 close to the right side, a material frame support rod column 104 is arranged in the middle of the rear side of the material frame bottom plate 101, and a material frame side plate 102 is arranged on the front side of the material frame bottom plate 101. A material pushing upper plate 106 is mounted on the plane where the material frame side plate 102 and the tops of the material frame support strip 103, the material frame support column 105, and the material frame support rod column 104 are located. The interior of a cavity with a rectangular structure enclosed by the material frame side plate 102, the material frame support strip 103, the material frame support column 105, the material frame support rod column 104, and the material pushing upper plate 106 is used to store the first type of substrate, and the length of the first type of substrate is less than 600 mm.

[0068] Combination Figure 6-Figure 8 As shown, multiple layers of support strips 107 are arranged between the material frame support strip 103 and the material frame support rod column 104 from bottom to top, and the two ends of the support strip 107 are respectively threadedly connected to the material frame support strip 103 and the material frame support rod column 104. An inlet 110 is provided on the front side of the support strip 107. Multiple layers of support strips 2 108 are arranged between the material frame support rod column 104 and the material frame support column 105 from bottom to top, and the support strips 107 and the support strips 2 108 of each layer are located at the same height, and the two ends of the support strips 2 108 are respectively threadedly connected to the material frame support rod column 104 and the material frame support column 105. An inlet 2 111 is provided on the front side of the support strip 2 108. The support strips 107 of each layer are connected to the support strips 2 108 end to end.

[0069] Combination Figure 6-Figure 8 , Fig.12 As shown, multiple layers of support strips 109 are arranged from bottom to top on the inner side of the material frame side plate 102, and the support strips 109 are integrally connected to the inner side of the material frame side plate 102. The length of the support strip 109 is equal to the sum of the length of the support strip 107 and the length of the support strip 2 108. The support strips 109 of each layer are arranged opposite to the support strips 107 and the support strips 108 of the same layer. The support strips 107, the support strips 2 108, and the support strips 3 109 are all arranged in 20 layers. The first type of substrate is mounted between the support strips of each layer on both sides of the inner side of the material frame 147.

[0070] like Figure 6 As shown, a protrusion 112 is provided at both ends of the front side of the material frame bottom plate 101, and a slide rail 113 is provided on the protrusion 112. The length of the slide rail 113 is equal to the sum of the width of the material frame bottom plate 101 and the width of the protrusion 112. Two sliders 114 are slidably connected to the slide rail 113. The tops of the two sliders 114 are provided with a material frame adjustment guide rail block 115. The material frame adjustment guide rail block 115 has a guide rail block horizontal plate body 116 and a guide rail block vertical plate body 117. The guide rail block vertical plate body 117 is vertically provided on the middle part of the guide rail block horizontal plate body 116. The guide rail block horizontal plate body 116 is provided between the two sliders 114. The guide rail block vertical plate body 117 is attached to the outer side of the material frame side plate 102.

[0071] Combination Figure 6 , Fig.10 , Fig.12 As shown, two ends of the front side of the pusher upper plate 106 are extended outward to form an integral protrusion 118, and two ends of the outer side of the material frame side plate 102 are provided with material frame width adjustment locking plates 119. The material frame width adjustment locking plates 119 include a fixing portion 120 and an adjusting portion 121. The fixing portion 120 is connected to the outer side of the material frame side plate 102, and the adjusting portion 121 is connected to the bottom of the pusher upper plate 106 at the bottom of the protrusion 118 through a handle screw.

[0072] A handle 122 is provided in the middle of the material frame side plate 102 .

[0073] When adjusting the width of the loading material frame 147, grasp the handle 122, push the material frame side plate 102, slide the slider 114 along the slide rail 113, drive the material frame side plate 102 to move, tighten the handle screw of the material frame width adjustment locking plate 119 to complete the change of the width of the loading material frame 147.

[0074] The substrate silo 1 also includes a silo for loading the second type of substrates, which is a rectangular fixture 148. The length of the second type of substrates ranges from 600 mm to 2000 mm.

[0075] like Figure 6 As shown, the rectangular clamp 148 is arranged on the top of the pusher upper plate 106, and a reinforcing track movable edge group is arranged on the front side of the top of the pusher upper plate 106, and the reinforcing track movable edge group includes a discharge conveying side plate 131, and a plurality of grooves 132 are arranged at intervals on the top of the discharge conveying side plate 131, and each groove 132 is embedded with a pressing plate 133, and the pressing plate 133 is threadedly connected with the corresponding groove 132, and a compression spring 134 is passed through the right side of the pressing plate 133, and the compression spring 134 is connected to the front side of the discharge conveying side plate 131 through a spring pressure plate 135, and the top of the pressing plate 133 is higher than the top of the discharge conveying side plate 131.

[0076] Combination Figure 6 , Figure 7 As shown, the rear side of the top of the pusher upper plate 106 is provided with a discharge conveying side plate 136, and the top of the discharge conveying side plate 136 is provided with a track stop 137. A rectangular clamp 148 is clamped between the discharge conveying side plate 131 and the discharge conveying side plate 136.

[0077] Combination Figure 6 , Figure 7 As shown, the rectangular clamp 148 is composed of two rectangular structures of groove 2 138 and groove 3 139 , and groove 3 139 is arranged on the top of groove 2 138 .

[0078] The bottom surface of the second groove 138 is suspended above the top surface of the material pushing upper plate 106 , and the two side surfaces of the second groove 138 are in contact with the inner side wall of the first material discharging conveying side plate 131 and the inner side wall of the second material discharging conveying side plate 136 respectively.

[0079] The bottom area of ​​the groove three 139 is larger than the bottom area of ​​the groove two 138. The bottom of the groove three 139 is mounted on the top of the groove two 138. The bottom of the groove three 139 is a hollow structure. The bottom of the groove three 139 is connected to both sides by a plurality of transverse baffles 140. The two sides of the groove three 139 are respectively in contact with the inner side wall of the track baffle 137 and the inner side wall of the press plate 133. A notch is provided on the side of the groove three 139 to facilitate the placement of the clamp 148. The groove three 139 of the clamp 148 is used to clamp the second substrate. In this embodiment, the number of press plates 133 is 15.

[0080] The pressing plate 133 is pushed by the spring pressing plate 135 connected to it. The spring pressing plate 135 applies pressure, and the pressing plate 133 can move slightly, so that the second substrate is forced to lean against the track baffle 137 on the other side of the discharge conveying side plate 136. The track baffle 137 is the reference edge. This design makes the position of the second substrate more precise and makes the clamp 148 move more smoothly to avoid jamming.

[0081] like Figure 7 As shown, a slide rail 141 is provided at the protrusion 118 on the top of the pusher upper plate 106 , one end of the slide rail 141 is close to the inner wall of the discharge conveying side plate 136 , one end of the slide rail 141 is located on the protrusion 118 , and the end of the slide rail 141 is connected to a limiting sheet metal 142 .

[0082] A slider block 143 is slidably connected to the slide rail 141, and a pusher width adjustment support block 144 is connected to the slider block 143. The horizontal support plate 145 in the pusher width adjustment support block 144 is threadedly connected to the top of the pusher upper plate 106. The top of the pusher width adjustment support block 144 is integrally connected with a support block vertical plate 146, and the inner side of the support block vertical plate 146 is attached to the outer wall of the discharge conveying side plate 131.

[0083] When the second substrate 150 is placed on the fixture 148 , the fixture 148 is pushed, and the second substrate moves along with the fixture 148 .

[0084] The hopper width of the second type of substrate can also be adjusted according to the width of the second type of substrate. By adjusting the discharge conveying side plate 131, the pushing width adjustment support block 144 drives the sliding block 143 to move along the sliding rail 141. After driving the discharge conveying side plate 131 to move, tighten the handle screw of the adjusting sheet metal 149 on the protrusion 118 to complete the change in width between the discharge conveying side plate 131 and the discharge conveying side plate 136, so as to adapt to fixtures and second type of substrates of different widths.

[0085] Combination Figure 6 , Fig.11As shown, a baffle structure is provided on the material frame side plate 102 near the outlet of the material loading frame 147, including a baffle 123 and a baffle cylinder mounting plate 124, the baffle cylinder mounting plate 124 is provided on the material frame side plate 102, a cylinder 126 is provided on the side of the baffle cylinder mounting plate 124 away from the baffle 123, a cylinder connecting block 125 is provided on the side of the middle of the baffle 123 near the baffle cylinder mounting plate 124, one end of the cylinder connecting block 125 is provided on the middle of the baffle 123, the other end of the cylinder connecting block 125 is sleeved on the cylinder 126, and the baffle 123 is provided at the outlet of the material loading frame 147. The baffle 123 is slidably connected with the baffle cylinder mounting plate 124. The baffle cylinder mounting plate 124 is provided with a slide rail 3 127 at the upper and lower positions on one side close to the baffle 123, and the baffle 123 is provided with a slider 3 128 at the upper and lower positions on one side close to the baffle cylinder mounting plate 124. The sliders 3 128 at the upper and lower positions are respectively slidably connected to the slide rail 3 127 at the upper and lower positions. The end of the slide rail 3 127 is provided with a limited position sheet metal 2 129. The cylinder 126 drives the baffle 123 to slide, and the baffle 123 closes the outlet of the material frame side plate 102, which can block the substrate from sliding out.

[0086] like Figure 6 As shown, the material frame support plate 130 is provided between the protrusion 1 112 and the protrusion 2 118 of the material frame 147, the bottom end of the material frame support plate 130 is threadedly connected to the material frame bottom plate 101, and the top end of the material frame support plate 130 is connected to the protrusion 2 118 of the material pushing upper plate 106 through a handle screw, and an adjustment sheet metal 149 is provided at the bottom of the handle screw. The material frame support plate 130 plays a role in supporting the material frame 147.

[0087] Combination Figure 3 , Figure 14-16 As shown, the automatic loading and lifting mechanism 3 is used to lift the substrate silo 1 in the Z-axis direction.

[0088] The automatic loading and lifting mechanism 3 includes a loading base plate 301, two sides of which are provided with slide rails 302, and below which are provided guide rail pads 303, and on which are slidably connected slide blocks 304; a sliding plate 305 is slidably connected to the loading base plate 301 through the structure of the slide blocks 304, and two ends of the sliding plate 305 are provided with triangular mounting seats 306. The material frame base plate 101 is mounted above the top of the triangular mounting seat 306. The entire substrate silo 1 is arranged on the triangular mounting seat 306, and the rear side of the substrate silo 1 is close to the sliding plate 305. Thus, the automatic loading and lifting mechanism 3 drives the substrate silo 1 to move on the Z axis.

[0089] Combination Figure 14-16As shown, a driving motor mounting plate 307 is connected to the bottom of the loading base plate 301, and a brake 308 and a servo motor 309 are arranged on the driving motor mounting plate 307. The rotating shaft of the servo motor 309 is passed through the bottom of the driving motor mounting plate 307, and a synchronous wheel 310 is rotatably connected to the rotating shaft of the servo motor 309. A rotating shaft is arranged at the bottom of the brake 308, and a synchronous wheel 310 is rotatably connected to the rotating shaft of the brake 308.

[0090] A screw rod 312 is also provided on the driving motor mounting plate 307, and a screw rod support bearing seat 313 is provided on the top of the driving motor mounting plate 307. A bearing 314 is provided in the screw rod support bearing seat 313. The top end of the screw rod 312 is rotatably connected to the bearing 314, and a retaining ring is provided on the top end of the screw rod 312, and the retaining ring adopts a shaft retaining spring 315.

[0091] A screw nut connecting block 316 is sleeved outside the nut on the screw 312, and the screw nut connecting block 316 is threadedly connected to the sliding plate 305;

[0092] The bottom end of the screw rod 312 is sleeved with a screw rod fixing seat 317 , and the screw rod fixing seat 317 is fixed on the loading bottom plate 301 .

[0093] The bottom end of the screw rod 312 passes through the drive motor mounting plate 307 and is rotatably connected to the second synchronous wheel 311 .

[0094] The two synchronous wheels 1 310 and the synchronous wheel 2 311 are connected by a synchronous belt 1 318 wrapped around the outside.

[0095] An idler wheel 319 is arranged between the two synchronous wheels 310, and a synchronous belt 318 is located inside the idler wheel 319. The idler wheel 319 is connected to the drive motor mounting plate 307 through a pin screw and a tension adjustment plate.

[0096] A hand wheel 320 is provided at the bottom end of the rotating shaft of the brake 308 .

[0097] A safety cover is also provided on the drive motor mounting plate 307. Except for the hand wheel 320, the three synchronous wheels, the idler wheel 319 and the synchronous belt 318 are all covered in the safety cover.

[0098] By manually controlling the hand wheel 320 and the brake 308, manual operation and debugging are facilitated.

[0099] The movement of the servo motor 309 drives the synchronous wheel 310 connected to the servo motor 309 to rotate, which is transmitted through the synchronous belt 318, driving the synchronous wheel 310 connected to the screw rod 312 to rotate. The screw rod 312 rotates, and the screw nut connecting block 316 drives the sliding plate 305 to move along the slide rail 302 on the loading bottom plate 301, thereby driving the substrate silo 1 to move up and down.

[0100] Combination Fig.17 , 18 As shown, the material pushing mechanism includes a material pushing plate 224, and a slide rail 5 219 is arranged on the front side of the top of the material pushing plate 224, and two sliding blocks 5 220 are slidably connected at both ends of the slide rail 5 219. The bottom of the material pushing plate 224 is connected to the top of the loading bottom plate 301.

[0101] Combination Figure 17-21 As shown, two groups of synchronous wheels 3 221 and idler wheels 222 are arranged in the middle of the top of the push plate 224, and each group of synchronous wheels 3 221 and idler wheels 222 are connected through a conveyor belt 2 223. Two closed-loop stepper motors 218 are arranged at the bottom of the push plate 224, and each synchronous wheel 3 221 is connected to the rotating shaft of a closed-loop stepper motor 218.

[0102] Combination Fig.17 As shown, the pushing mechanism includes a first-stage pushing part group arranged on the right side and a second-stage pushing part group arranged on the left side.

[0103] A material pushing section group includes a material pushing buffer seat 201, a sixth slide rail 203, a sixth slide block 204, a guide rod cylinder 205, a guide rod seat 206, a linear bearing seat 207, and a material pushing piece 212.

[0104] The pusher buffer seat 201 is connected to two sliders 5 220 arranged at the bottom thereof. The pusher buffer seat 201 is connected to a synchronous belt pressing plate 225 and a belt pressing plate 226 at the bottom thereof, and the conveyor belt 223 is clamped between the synchronous belt pressing plate 225 and the belt pressing plate 226, and then the conveyor belt 223 moves, the pusher buffer seat 201 moves, and thus the first or second pusher group moves.

[0105] A slide rail 6 203 is arranged on the left side of the top of the push material buffer seat 201, and a slider 6 204 is slidably connected to the slide rail 6 203. A guide rod cylinder 205 is arranged on the right side of the push material buffer seat 201.

[0106] A guide rod seat 206 is provided on the common top surface where the slider 6 204 and the guide rod cylinder 205 are located, and a linear bearing seat 207 is embedded on the guide rod seat 206. The two ends of the guide rod 208 in the linear bearing seat 207 are respectively connected to the two sides of the guide rod seat 206, and the compression spring 209 in the linear bearing seat 207 is connected to the side of the guide rod seat 206 through the compression spring sheet metal 202. The compression spring sheet metal 202 is embedded in the outer side of the guide rod seat 206.

[0107] A photoelectric sensor 210 is disposed on the top of the body of the linear bearing seat 207 , and a buffer induction sheet 211 is connected to the guide rod seat 206 . The top of the buffer induction sheet 211 is located between the photoelectric sensors 210 .

[0108] A push piece 212 is connected to the top of the body of the linear bearing seat 207.

[0109] The material pusher 212 includes a horizontal piece 213, a vertical piece 214, a vertical piece 215 and a fixed piece 216. The left end of the horizontal piece 213 is integrally connected to the front end of the vertical piece 214. The length of the horizontal piece 213 is greater than the length of the vertical piece 214. The bottom of the right end of the horizontal piece 213 is connected to the vertical piece 215. The rear end of the vertical piece 214 is connected to the rear end of the fixed piece 216. The fixed piece 216 is connected to the top surface of the linear bearing seat 207. The top of the material pusher 212 is also provided with an L-shaped structure to facilitate pushing the first substrate.

[0110] Two-stage pusher group,

[0111] It also includes the same structural connection relationship as a first-stage pushing part group, and also includes a pushing buffer seat 201, a slide rail 6 203, a slider 6 204, a guide rod cylinder 205, a guide rod seat 206, and a linear bearing seat 207. The difference from the first-stage pushing part group is the pushing piece. The pushing piece used is a pushing piece 217, which will not be repeated.

[0112] The second pusher piece 217 also has a horizontal piece and a vertical piece, a vertical piece and a fixed piece, the left end of the horizontal piece is integrally connected to the front end of the vertical piece, the length of the horizontal piece is less than the length of the vertical piece, the bottom of the right end of the horizontal piece is connected to the vertical piece, the rear end of the vertical piece is connected to the front end of the fixed piece, and the fixed piece is connected to the top surface of the linear bearing seat of the second-stage pusher group. The top of the second pusher piece 217 is also provided with an I-shaped structure to facilitate pushing the first substrate.

[0113] When the automatic loading and lifting mechanism 3 drives the substrate bin 1 to move to the appropriate Z-axis position, it is necessary to push the material, and the guide rod cylinder 205 moves, driving the guide rod seat 206 and the linear bearing seat 207 to drive the slider 6 204 to slide along the slide rail 6 203 in the Y-axis direction, so that the push piece 1 212 is inserted into the substrate bin 1 through the inlet 110, or the push piece 2 217 is inserted into the substrate bin 1 through the inlet 2 111, and then the closed-loop stepper motor 218 connected to the push piece 1 212 or the push piece 2 217 is operated, and the conveyor belt 2 223 corresponding to the push piece 1 212 or the push piece 2 217 drives the first pusher group or the second pusher group to move as a whole along the X-axis direction. The push piece 1 212 or the push piece 2 217 pushes the first type of substrate in the substrate bin 1 to move.

[0114] Under normal circumstances, the linear bearing seat 207 and the guide rod seat 206 will not move relative to each other due to the middle compression spring 209. During the movement, if the material is stuck, causing the push piece 1 212 or the push piece 217 to be stuck, the push piece 1 212 or the push piece 217 is rigidly connected to the linear bearing seat 207 with screws, and the linear bearing seat 207 does not move. At this time, the guide rod seat 206 continues to move, causing the linear bearing seat 207 and the guide rod seat 206 to move relative to each other along the guide rod 208.

[0115] A photoelectric sensor 210 is fixed on the linear bearing seat 207, and a buffer induction sheet 211 is installed on the guide rod seat 206. When the material is stuck, the buffer induction sheet 211 moves to the photoelectric sensor 210 to trigger an alarm signal.

[0116] When the pushing mechanism 2 is installed on the upper end of the automatic loading and lifting mechanism 3, in order to ensure that the first type of substrate can be fully pushed into the main machine, this embodiment is provided with two-stage pushing parts, which push the material in two stages to make the pushing stroke larger in a limited space.

[0117] The two-stage pusher assembly is driven by the closed-loop stepper motor 218 and the conveyor belt 223. The two closed-loop stepper motors 218 and the conveyor belt 223 operate independently. The two-stage pusher assembly is connected to the conveyor belt 223 and driven by the conveyor belt 223 to move along the slide rail 5 219.

[0118] The material box loading device of the present invention is compatible with two loading methods: one is loading with a rectangular clamp, the length of the rectangular clamp can be customized as needed, and this loading method is compatible with substrates with a maximum length of 2000mm; the other is loading with a loading frame 147, which is compatible with substrates with smaller lengths; the spacing between two adjacent layers of support bars in the loading frame 147 is 10mm, and 20 layers are supported. After the pushing mechanism 2 pushes each first type of substrate, the servo motor 309 lifts the height of the substrate silo 1 through the slide rail four 302 to allow the pushing mechanism 2 to push the next first type of substrate.

[0119] The material pushing mechanism 2 is divided into two sections to push the first type of substrate in and out of the loading frame 147. The material pushing piece 1 212 or the material pushing piece 217 can move in the left and right directions and can also move in the front and back directions. The left and right directions can push the material, and the front and back directions can adjust the position of the material pushing piece 1 212 or the material pushing piece 217 relative to the first type of substrate.

[0120] The present invention realizes automatic material box conveying for products less than 600mm; and can support the loading method with rectangular clamps for substrates with a length of 600mm-2000mm. It has good compatibility with product lengths and meets the needs of fast switching of different substrate lengths. It enables one device to be compatible with multiple products, achieving good economy and efficiency.

[0121] The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the needs of different situations.

[0122] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A material box feeding device for a die bonder, comprising a feeding frame, characterized in that: A substrate hopper, an automatic loading and lifting mechanism, and a pushing mechanism are arranged inside the feeder rack. The automatic loading and lifting mechanism is used to carry the substrate hopper and move it in the Z-axis direction. The pushing mechanism is arranged on the top of the automatic loading and lifting mechanism. The substrate hopper includes a loading frame and a clamp arranged on the top of the loading frame. The loading frame is used to accommodate the first type of substrate, and the clamp is used to accommodate the second type of substrate. The pushing mechanism is used to push the first type of substrate into the die bonding machine for chip mounting, and the second type of substrate is manually pushed into the die bonding machine for chip mounting.

2. The material box feeding device according to claim 1, characterized in that: The loading frame is a cavity of rectangular structure, with left and right sides being open. Several layers of supporting strips are arranged on both sides of the cavity of the loading frame, and the supporting strips between the two sides are used to place the first substrate.

3. The material box feeding device according to claim 2, characterized in that: The loading material frame is composed of a cavity enclosed by a material frame bottom plate arranged at the bottom, a material frame side plate arranged at the front side of the material frame bottom plate, a material frame rear plate arranged at the rear side of the material frame bottom plate and an upper plate for pushing the material, and the material frame rear plate is composed of material frame support bars and material frame support columns arranged on both sides respectively, and a material frame support rod column arranged in the middle, wherein a plurality of layers of support bars one are arranged at intervals between the material frame support bars and the material frame support rod columns, and a plurality of layers of support bars two are arranged at intervals between the material frame support columns and the material frame support rod columns, and support bars one and support bars two of each layer are connected end to end; a plurality of layers of support bars three are arranged at intervals from bottom to top on the inner side of the material frame side plate, and the length of support bar three is equal to the sum of the length of support bar one and the length of support bar two.

4. The material box feeding device according to claim 3, characterized in that: A slide rail in the Y-axis direction is arranged on the bottom plate of the material frame, the side plate of the material frame is slidably connected to the bottom plate of the material frame, the bottom of the side plate of the material frame is connected to the slider arranged on the slide rail through the material frame adjustment guide block, and the material frame adjustment guide block is connected to the bottom of the side plate of the material frame; the top of the side plate of the material frame is movably connected to the upper plate for pushing the material, the side plate of the material frame is connected to the upper plate for pushing the material through the material frame width adjustment lock plate, and the material frame width adjustment lock plate is connected with a handle screw.

5. The material box feeding device according to claim 4, characterized in that: A reinforced track movable edge group is arranged on the front side of the top of the pusher upper plate, and the reinforced track movable edge group includes a discharge conveying side plate one, which is slidably connected to the discharge conveying upper plate, and a plurality of pressure plates are embedded on the discharge conveying side plate one at intervals, and the pressure plate is connected to the front side of the discharge conveying side plate one through a spring pressure plate, and the top of the pressure plate is higher than the top of the discharge conveying side plate one; a discharge conveying side plate two is arranged on the rear side of the top of the pusher upper plate, and a track baffle is arranged on the top of the discharge conveying side plate two; a rectangular clamp is clamped between the discharge conveying side plate one and the discharge conveying side plate two, and the clamp consists of two rectangular structures of groove two and groove three, and groove two is arranged at the top of groove two.

6. The material box feeding device according to claim 5, characterized in that: The bottom surface of groove two is suspended above the top surface of the pusher upper plate, and the two side surfaces of groove two are respectively in contact with the inner side wall of the discharge conveying side plate one and the inner side wall of the discharge conveying side plate two; the bottom surface area of ​​groove three is larger than the bottom surface area of ​​groove two, the bottom surface of groove three is mounted on the top of groove two, the bottom of groove three is a hollow structure, the bottom of groove three is connected to both sides by a number of transverse baffles, and the two side surfaces of groove three are respectively in contact with the inner side wall of the track baffle and the inner side wall of the pressing plate, and the groove three of the clamp is used to clamp the second substrate.

7. The material box feeding device according to claim 3, characterized in that: The automatic feeding and lifting mechanism comprises a feeding bottom plate, a sliding plate is slidably connected to the feeding bottom plate, triangular mounting seats are arranged at both ends of the sliding plate, a material frame bottom plate is mounted on the top of the triangular mounting seat, and a substrate bin is arranged on the triangular mounting seat; a driving motor mounting plate is connected to the bottom of the feeding bottom plate, a servo motor is arranged on the driving motor mounting plate, a rotating shaft of the servo motor is passed through the bottom of the driving motor mounting plate, and a synchronous wheel 1 is rotatably connected to the rotating shaft of the servo motor; The drive motor mounting plate is also provided with a screw rod, the top end of the screw rod is connected to the top of the drive motor mounting plate through a bearing, the screw rod nut connecting block on the screw rod is threadedly connected to the sliding plate, the bottom end of the screw rod is sleeved with a screw rod fixing seat, the screw rod fixing seat is fixed on the feeding bottom plate, and the bottom end of the screw rod is rotatably connected to a synchronous wheel 2; The first synchronous wheel is connected with the second synchronous wheel through an outer-surrounding synchronous belt transmission.

8. The material box feeding device according to claim 7, characterized in that: A brake is arranged on the driving motor mounting plate, a rotating shaft is arranged at the bottom of the brake, a synchronous wheel 1 is rotatably connected to the rotating shaft of the brake, and the synchronous wheel 1 is also connected to the synchronous wheel 2 through an outer winding synchronous belt transmission; a hand wheel is arranged at the bottom end of the rotating shaft of the brake.

9. The material box feeding device according to claim 1, characterized in that: The pushing mechanism comprises a pushing plate, on which a first-stage pushing part group and a second-stage pushing part group are slidably connected; Two sets of synchronous wheels three and idler wheels two are arranged on the top of the push plate, and each set of synchronous wheels three and idler wheels two are connected by a conveyor belt. Two closed-loop stepper motors are arranged on the bottom of the push plate, and each synchronous wheel three is connected to the rotating shaft of a closed-loop stepper motor; the first-stage pusher group and the second-stage pusher group are respectively connected to a conveyor belt.

10. The material box feeding device according to claim 9, characterized in that: A pusher assembly includes a pusher buffer seat, a guide rod seat is slidably connected to the pusher buffer seat, a linear bearing seat is embedded in the guide rod seat, two ends of the guide rod in the linear bearing seat are respectively connected to the two sides of the guide rod seat, and the compression spring in the linear bearing seat is connected to the side of the guide rod seat through the compression spring sheet metal; a guide rod cylinder is arranged on the pusher buffer seat, and the guide rod cylinder is connected to the guide rod seat; a pusher sheet is connected to the linear bearing seat.

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