A wind power anchor bolt transportation device
Patent Information
- Application Number
- CN202610798123.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-04
- Publication Date
- 2026-08-18
AI Technical Summary
首先,锚栓重量大,人工调整位置困难且存在安全隐患,操作人员易受挤压或砸伤
[0016]The beneficial effects of this invention compared with the prior art are as follows: the positioning component, placement component, and filling component of this invention work alternately to automatically complete the packaging and transportation of multiple sets of wind power anchor bolts, thereby improving the transportation efficiency of wind power anchor bolts. The filling component of this invention automatically places the wind power anchor bolts, and the position of the wind power anchor bolts is adjusted by the setting push block and toggle block, so that the wind power anchor bolts are accurately placed in the circular groove of the pad, thereby improving the stability of the wind power anchor bolts during transportation and packaging.
Smart Images

Figure CN122585485A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wind power anchor bolt transportation technology, and in particular to a wind power anchor bolt transportation device. Background Technology
[0002] In the wind power equipment manufacturing industry, anchor bolts, as key fasteners connecting wind turbine towers and foundations, are typically long and require strict surface protection. After production and processing, anchor bolts need to be packaged and transported to the wind farm for safe installation. Anchor bolt packaging usually involves placing them in circular grooves on specialized wooden blocks, along with positioning and filling operations, to prevent displacement, collisions, and surface damage during transportation.
[0003] Currently, the packaging and pre-transportation processing of wind turbine anchor bolts largely relies on manual or semi-mechanized operations. Operators must hoist the anchor bolts to the packaging station, manually adjust their position to fit into the grooves on the wooden blocks, and then place filler material to secure them. This method has significant drawbacks. First, the anchor bolts are heavy, making manual adjustment difficult and posing safety hazards, as operators are easily crushed or injured. Second, manual positioning accuracy is low; the anchor bolts are difficult to accurately align into the grooves, often requiring repeated trial placements, resulting in low efficiency. Furthermore, when multiple anchor bolts need to be packaged sequentially, manual operation makes multi-station coordination difficult, easily causing discontinuous production cycles and affecting overall transportation preparation efficiency.
[0004] While some existing auxiliary equipment can achieve mechanical handling of anchor bolts, it typically lacks the function of precise fine-tuning the bolt position. Especially during the process of placing the anchor bolt into the groove of the wooden block, it is difficult to ensure a tight fit between the anchor bolt and the groove. If the gap between the anchor bolt and the groove is not adequately filled during transportation, it can cause the anchor bolt to wobble, increasing the risk of surface impact and even affecting the accuracy of subsequent installation. Summary of the Invention
[0005] To address the aforementioned technical problems, this invention discloses a wind power anchor bolt transportation device.
[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a wind power anchor bolt transportation device, characterized in that: it includes a base, a placement frame is slidably arranged on the base, the placement frame is provided with a placement groove 1 and a placement groove 2, and a placement mechanism for placing a fixing rod on the placement frame is provided on both sides of the base. The base has a placement component and a filling component on each side. The placement component includes a support and a clamping mechanism. A conveyor belt is provided on the support. Multiple sets of wooden blocks are placed on the conveyor belt. The clamping mechanism places the wooden blocks on the conveyor belt onto the placement frame. The filling component includes a second mounting frame, on which a placement box is slidably mounted. Multiple sets of wind turbine anchors are placed inside the placement box. Multiple sets of second baffles are slidably mounted inside the placement box, and the second baffles alternately block the wind turbine anchors inside the placement box. The filling component also includes an adjustment mechanism, which adjusts the position of the wind turbine anchors on the placement frame.
[0007] Furthermore, a mounting bracket is provided on one side of the base, and a pressing plate is slidably mounted on the mounting bracket to press down on multiple sets of pads.
[0008] Furthermore, the placement mechanism includes a loading rack that is slidably mounted on a base, a placement column that is rotatably mounted on the loading rack, and multiple sets of fixing rods that are placed on the placement column. The placement column is fixed to the fixing rods by an electromagnet block.
[0009] Furthermore, the placement rack is equipped with a material picking trough, a second placement trough, and a first placement trough. The packaged wind turbine anchor bolts are lifted through the material picking trough, the fixing rod is placed in the first placement trough, and the bottom layer of padding wood is placed in the second placement trough.
[0010] Furthermore, the placement assembly also includes a second base, on which a rotating frame is rotatably mounted. The clamping mechanism includes a clamping frame slidably mounted within the rotating frame. Multiple sets of clamping blocks are slidably mounted on the clamping frame. A spring is provided between the clamping blocks and the clamping frame. The clamping blocks clamp the wooden block.
[0011] Furthermore, a pressing frame is slidably disposed on the clamping frame, and the pressing frame is in contact with multiple sets of clamping blocks. When the pressing frame moves, it squeezes the multiple sets of clamping blocks.
[0012] Furthermore, the adjustment mechanism includes a base three, an adjustment plate slidably disposed on the base three, a lifting frame slidably disposed on the adjustment plate, and a pushing block slidably disposed on the lifting frame, the pushing block pushing the wind turbine anchor bolt to move.
[0013] Furthermore, the pushing block is provided with a toggle block, which toggle the wind turbine anchor bolt to move.
[0014] Furthermore, the adjustment mechanism also includes a mounting box, in which a baffle is slidably disposed, and the baffle blocks a pair of wind power anchor bolts.
[0015] Furthermore, the placement box is provided with a discharge chute, and the end of the wind power anchor bolt with the nut inside the placement box faces the discharge chute.
[0016] The beneficial effects of this invention compared with the prior art are as follows: the positioning component, placement component, and filling component of this invention work alternately to automatically complete the packaging and transportation of multiple sets of wind power anchor bolts, thereby improving the transportation efficiency of wind power anchor bolts. The filling component of this invention automatically places the wind power anchor bolts, and the position of the wind power anchor bolts is adjusted by the setting push block and toggle block, so that the wind power anchor bolts are accurately placed in the circular groove of the pad, thereby improving the stability of the wind power anchor bolts during transportation and packaging. Attached Figure Description
[0017] Figure 1 This is a front view of the overall structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 3 This is a schematic diagram of the positioning component structure of the present invention.
[0020] Figure 4 This is a left view of the positioning component of the present invention.
[0021] Figure 5 This is a schematic diagram of the positioning component structure of the present invention.
[0022] Figure 6 This is a schematic diagram of the component placement structure of the present invention.
[0023] Figure 7 This is a top view of the component structure of the present invention.
[0024] Figure 8 The front view of the component structure of this invention is shown.
[0025] Figure 9 This is a schematic diagram of the three-structured pad of the present invention.
[0026] Figure 10 This is a schematic diagram of the filling component structure of the present invention.
[0027] Figure 11 This is a top view of the filling component structure of the present invention.
[0028] Figure 12 This is a partial structural cross-sectional view of the placement box of the present invention.
[0029] Figure 13 This is a schematic diagram of the placement box structure of the present invention.
[0030] Figure 14 This is a cross-sectional view of the placement box structure of the present invention.
[0031] Reference numerals: 1-Positioning component; 2-Placement component; 3-Filling component; 101-Base 1; 102-Placement frame; 103-Motor 1; 104-Mounting frame 1; 105-Pressing plate; 106-Electric cylinder 1; 107-Motor 2; 108-Feeding rack; 109-Placement column; 110-Motor 3; 111-Fixing rod; 112-Placement slot 1; 113-Retrieving slot; 114-Placement slot 2; 201-Bracket; 202-Conveyor belt; 203-Wooden block 1; 204-Wooden block 2; 205-Clamping frame; 206-Clamping block; 207-Pressing frame; 208-Electric cylinder 2; 209-Base 210-Rotating frame; 211-Gear 1; 212-Gear 2; 213-Motor 4; 214-Spring; 215-Motor 5; 216-Wooden block 3; 301-Mounting frame 2; 302-Placement box; 303-Electric cylinder 3; 304-Wind power anchor bolt; 305-Mounting box; 306-Motor 6; 307-Baffle 1; 308-Base 3; 309-Adjusting plate; 310-Motor 7; 311-Lifting frame; 312-Push block; 313-Motor 8; 314-Toggle block; 315-Electric cylinder 4; 316-Motor 9; 317-Baffle 2; 318-Blocking groove; 319-Discharge chute. Detailed Implementation
[0032] refer to Figures 1 to 14 As shown, this invention discloses a wind turbine anchor bolt transportation device. This invention stacks multiple sets of wind turbine anchor bolts 304 together for fixation. Multiple sets of wooden blocks are inserted and fixed using fixing rods 111, and the wind turbine anchor bolts 304 are placed among the wooden blocks to complete the fixation of the wind turbine anchor bolts 304, improving the stability of the wind turbine anchor bolts 304 during transportation. The positioning component 1 of this invention automatically positions the fixing rods 111 and places them on the placement frame 102. The placement component 2 of this invention inserts multiple sets of wooden blocks onto the fixing rods 111 respectively, completing the stacking of the fixing rods 111. Simultaneously, the filling component 3 places the wind turbine anchor bolts 304 on the wooden blocks, improving the placement efficiency of the wind turbine anchor bolts 304. Furthermore, the pushing block 312 and the actuating block 314 provided in the filling component 3 adjust the position of the wind turbine anchor bolts 304, ensuring the accuracy of the placement position of the wind turbine anchor bolts 304.
[0033] refer to Figures 1 to 5 The positioning component 1 shown includes a base 101, a placement frame 102 slidably mounted on the base 101, a motor 103 mounted on the base 101, a lead screw mounted on the output shaft of the motor 103, and the placement frame 102 and the lead screw on the motor 103 are connected by threads. When the motor 103 is started, it drives the placement frame 102 to move on the base 101, thereby adjusting the position of the placement frame 102.
[0034] The placement rack 102 is equipped with a placement slot 112, a material picking slot 113, and a placement slot 2 114. The fixing rod 111 is placed on the placement slot 112, and an electromagnet block is installed in the placement slot 112. The placement slot 112 fixes the fixing rod 111 by means of the electromagnet block. The first pad 203 is the bottom pad among the stacked pads. The lower end of the first pad 203 is placed in the placement slot 2 114. The fixing rod 111 passes through both ends of the first pad 203 to fix the first pad 203. The forklift is inserted into the placement rack 102 through the material picking slot 113, and then the stacked wind power anchor bolts 304 are lifted by means of the first pad 203.
[0035] Both sides of the base 101 are equipped with a motor 107 and a feeding rack 108. The feeding rack 108 is slidably connected to the base 101. A lead screw is installed on the output shaft of the motor 107. The feeding rack 108 is threadedly connected to the lead screw on the output shaft of the motor 107. When the motor 107 starts, it drives the feeding rack 108 to slide on the base 101. A placement column 109 is rotatably mounted on the feeding rack 108. An electromagnet block is installed inside the placement column 109. Multiple sets of fixing rods 111 are placed on the placement column 109. The placement column 109 controls the fixing rods 111 through the electromagnet block. 11. Fixing is performed. A motor 3 110 is installed on the feeding rack 108. The output shaft of the motor 3 110 is connected to the placement column 109. When the motor 3 110 starts, it drives the placement column 109 to rotate. The placement column 109 drives the fixing rod 111 to move. When a set of fixing rods 111 is aligned with the placement slot 112, the electromagnet block on the placement column 109 that attracts this set of fixing rods 111 is turned off. At this time, the fixing rods 111 fall into the placement slot 112. At the same time, the electromagnet block in the placement slot 112 is activated, and the fixing of the placement slot 112 and the fixing rods 111 is completed.
[0036] The base 101 is also provided with a mounting bracket 104 on its side. A pressing plate 105 is slidably mounted on the mounting bracket 104. The pressing plate 105 presses down on the pad 204. An electric cylinder 106 is mounted on the mounting bracket 104. The movable end of the electric cylinder 106 is connected to the pressing plate 105.
[0037] refer to Figures 6 to 9As shown in component 2, it includes a support 201, on which a conveyor belt 202 is rotatably mounted. The conveyor belt 202 is used to transport the wooden blocks. The wooden blocks include a first wooden block 203, a second wooden block 204, and a third wooden block 216. One side of the first wooden block 203 has a protrusion, and the lower end of the protrusion of the first wooden block 203 is inserted into the second placement groove 114. The other side of the first wooden block 203 has a circular groove. One side of the second wooden block 204 is flat, and the other side of the second wooden block 204 has a circular groove. Both sides of the third wooden block 216 have multiple sets of circular grooves. The circular grooves limit the movement of the wind turbine anchor bolts 304. When the wind turbine anchor bolts 304 are stacked, the first wooden block 203 is placed at the bottom, the stacking of multiple sets of wind turbine anchor bolts 304 is limited by the third wooden block 216, and the second wooden block 204 is placed at the top.
[0038] The placement component 2 also includes a base 209, on which a rotating frame 210 is rotatably mounted. A motor 215 is mounted on the side of the base 209. A gear 211 is mounted on the output shaft of the motor 215. A gear 212 is coaxially mounted on the rotating frame 210. Gear 211 meshes with gear 212. When the motor 215 starts, it drives gear 211 to rotate. Gear 211 drives the rotating frame 210 to rotate on the base 209 through gear 212, thereby adjusting the position of the base 209.
[0039] refer to Figure 7 , Figure 8 As shown, a clamping frame 205 is slidably disposed within the base 209. A motor 213 is disposed on the rotating frame 210. A lead screw is disposed on the output shaft of the motor 213. The clamping frame 205 and the lead screw on the output shaft of the motor 213 are connected by threads. When the motor 213 starts, it drives the clamping frame 205 to slide on the rotating frame 210. Multiple sets of clamping blocks 206 are slidably disposed on the clamping frame 205. A spring 214 is disposed between the clamping blocks 206 and the clamping frame 205. A pressing frame 207 is slidably disposed on the clamping frame 205. The pressing frame 207 and the clamping blocks 206 are connected by threads. 6. For the fit, the clamping frame 205 is also equipped with multiple sets of electric cylinders 208. The movable end of the electric cylinder 208 is connected to the pressing frame 207. When the electric cylinder 208 is started, it pushes the pressing frame 207 to move. The pressing frame 207 squeezes the multiple sets of clamping blocks 206. The multiple sets of clamping blocks 206 move closer to each other to clamp the pads on the conveyor belt 202. After clamping is completed, the rotating frame 210 is driven to rotate on the base 209. The clamping frame 205 drives the multiple sets of pads to move. The clamping frame 205 is driven to slide on the rotating frame 210 to adjust the position of the multiple sets of pads and complete the placement of the pads.
[0040] refer to Figures 10 to 14The filling component 3 shown includes a mounting frame 301, on which a placement box 302 is slidably mounted. Multiple sets of wind turbine anchors 304 are installed inside the placement box 302. An electric cylinder 303 is mounted on the mounting frame 301, with its movable end connected to the placement box 302. A discharge chute 319 is provided on the placement box 302. One end of each wind turbine anchor 304 with a nut faces the discharge chute 319. Two sets of motors 316 are mounted on the side of the placement box 302, with lead screws mounted on the output shafts of the motors 316. Two sets of baffles 317 are slidably installed inside the box 302. The two sets of baffles 317 are respectively connected to the lead screws on the output shafts of two sets of motors 316 through threads. When the motors 316 start, they drive the baffles 317 to move. Multiple sets of blocking grooves 318 are provided inside the box 302. The baffles 317 move in the blocking grooves 318. The baffles 317 block the wind power anchors 304 through the blocking grooves 318. The two sets of baffles 317 alternately block the wind power anchors 304 in the box 302 to ensure that the wind power anchors 304 are discharged one by one.
[0041] The filling component 3 also includes a mounting box 305, in which a baffle 307 is slidably disposed. A motor 306 is disposed on the side of the mounting box 305. A lead screw is disposed on the output shaft of the motor 306. The baffle 307 is threadedly connected to the lead screw on the output shaft of the motor 306. When the motor 306 starts, it drives the baffle 307 to slide in the mounting box 305. The baffle 307 blocks one end of the wind power anchor bolt 304.
[0042] The filling component 3 also includes a base 308, on which an adjusting plate 309 is slidably mounted. An electric cylinder 315 is mounted on the base 308, with its movable end connected to the adjusting plate 309. A lifting frame 311 is slidably mounted on the adjusting plate 309, and a motor 310 is mounted on the adjusting plate 309. A lead screw is mounted on the output shaft of the motor 310. The lifting frame 311 and the lead screw on the output shaft of the motor 310 are connected by threads. When started, the lifting frame 311 slides on the adjusting plate 309. The lifting frame 311 is equipped with a motor 313. A lead screw is installed on the output shaft of the motor 313. A push block 312 is slidably installed inside the lifting frame 311. The push block 312 is connected to the lead screw on the output shaft of the motor 313 by a thread. A toggle block 314 is installed on the push block 312. The push block 312 pushes the wind power anchor 304 to move. The toggle block 314 is used to toggle the wind power anchor 304 so that the wind power anchor 304 enters the circular recess.
[0043] Working principle: During operation, multiple sets of wind turbine anchor bolts 304 to be packaged are placed in the placement box 302. First, the placement frame 102 is driven to move on the base 101. When the placement frame 102 drives the placement slot 112 to align with the fixing rod 111, the electromagnet block on the placement column 109 is controlled to place the fixing rod 111 on the placement slot 112. At the same time, the electromagnet block on the placement slot 112 is activated to fix the fixing rod 111. The motor 310 is started, and the motor 310 drives the placement column 109 to rotate. The placement column 109 continues to drive the fixing rod 111 to align with the placement slot 112. The multiple sets of fixing rods 111 on the placement frame 102 are then placed.
[0044] When placing the wooden blocks and wind turbine anchor bolts 304 onto the placement frame 102, the conveyor belt 202 is first started. The conveyor belt 202 transports the wooden blocks to the lower end of the clamping frame 205, driving the clamping frame 205 to move on the rotating frame 210. The clamping frame 205 drives multiple sets of clamping blocks 206 to align with the wooden blocks. Then, the electric cylinder 208 is started, driving the pressing frame 207 to move. The pressing frame 207 drives multiple sets of clamping blocks 206 to move, clamping the wooden blocks. Then, the rotating frame 210 is rotated by starting motor 215. The rotating frame 210 drives multiple sets of pads to rotate. After the rotating frame 210 aligns the pads with multiple sets of fixing rods 111, the height of the clamping frame 205 is adjusted. The clamping frame 205 drives the pads to be inserted into the fixing rods 111. When the pads reach the installation position, the pressing frame 207 is activated to reset, the clamping block 206 releases the clamp on the pads, and then the clamping frame 205 is driven to reset. At this time, the placement of the pads is completed.
[0045] When placing the blocks, first place block 1 203, then place multiple sets of block 3 216, and finally place block 2 204 on top.
[0046] After placing the wooden blocks, the wind turbine anchor bolts 304 need to be placed on the blocks. After the clamping frame 205 resets, the placement box 302 is driven to descend and approach the wooden blocks on the placement frame 102. When the wind turbine anchor bolts 304 need to be placed, the upper set of baffles 317 is driven to move. At this time, the wind turbine anchor bolts 304 in the placement box 302 fall onto the lower set of baffles 317. The upper set of baffles 317 is then reset, and the wind turbine anchor bolts 304 in the placement box 302 no longer fall. The lower set of baffles 317 is then driven to move, and the lower set of baffles 317 releases its obstruction of the wind turbine anchor bolts 304 in the placement box 302. At this time, the wind turbine anchor bolts 304 fall onto the wooden blocks, completing the placement of the wind turbine anchor bolts 304.
[0047] During the installation of the wind turbine anchor 304, when accurate adjustment of its position is required, firstly, the drive baffle 307 slides within the mounting box 305, blocking one end of the wind turbine anchor 304 to prevent excessive displacement. Then, the position of the push block 312 is adjusted. When the push block 312 is in contact with the wind turbine anchor 304, the drive adjusting plate 309 slides on the base 308. 9 drives the push block 312 to move the wind power anchor bolt 304, so that one end of the wind power anchor bolt 304 is tightly attached to the baffle 307. When the wind power anchor bolt 304 is not placed in the circular groove of the pad, the actuating block 314 is attached to the wind power anchor bolt 304, driving the push block 312 to move on the lifting frame 311. The push block 312 drives the actuating block 314 to move, and the actuating block 314 actuates the wind power anchor bolt 304 to complete the adjustment of the position of the wind power anchor bolt 304.
[0048] After stacking the wind turbine anchor bolts 304 and placing the second set of wooden blocks 204, drive the placement frame 102 to reset, start the electric cylinder 106, and the electric cylinder 106 drives the pressing plate 105 to press the second set of wooden blocks 204, so that the multiple sets of wooden blocks and wind turbine anchor bolts 304 are tightly attached. The nuts are tightened on the fixing rod 111 by hand to package the multiple sets of wind turbine anchor bolts 304. Drive the pressing plate 105 to reset, and use a forklift inserted into the material picking trough 113 to lift out and transport the stacked wind turbine anchor bolts 304.
Claims
1. A wind turbine anchor bolt transportation device, characterized in that: It includes a base (101), a placement rack (102) is slidably arranged on the base (101), the placement rack (102) is provided with a placement slot (112) and a placement slot (114), and a placement mechanism for placing a fixing rod (111) on the placement rack (102) is provided on both sides of the base (101); The base (101) is provided with a placement component (2) and a filling component (3) on both sides respectively. The placement component (2) includes a support (201) and a clamping mechanism. A conveyor belt (202) is provided on the support (201). Multiple sets of pads are placed on the conveyor belt (202). The clamping mechanism places the pads on the conveyor belt (202) onto the placement frame (102). The filling component (3) includes a second mounting frame (301), on which a placement box (302) is slidably disposed. Multiple sets of wind power anchors (304) are placed in the placement box (302). Multiple sets of second baffles (317) are slidably disposed in the placement box (302). The second baffles (317) alternately block the wind power anchors (304) in the placement box (302). The filling component (3) also includes an adjustment mechanism, which adjusts the position of the wind power anchors (304) on the placement frame (102).
2. The wind power anchor bolt transportation device according to claim 1, characterized in that: The base (101) is provided with a mounting bracket (104) on its side. A pressing plate (105) is slidably provided on the mounting bracket (104) and the pressing plate (105) presses down on multiple sets of pads.
3. The wind power anchor bolt transportation device according to claim 1, characterized in that: The placement mechanism includes a loading rack (108) that is slidably mounted on a base (101). A placement column (109) is rotatably mounted on the loading rack (108). Multiple sets of fixing rods (111) are placed on the placement column (109). The placement column (109) is fixed to the fixing rods (111) by an electromagnet block.
4. A wind power anchor bolt transportation device according to claim 3, characterized in that: The placement rack (102) is provided with a material picking trough (113), a second placement trough (114), and a first placement trough (112). The packaged wind power anchor bolts (304) are lifted through the material picking trough (113), the fixing rod (111) is placed in the first placement trough (112), and the bottom layer of pad wood is placed in the second placement trough (114).
5. A wind power anchor bolt transportation device according to claim 1, characterized in that: The placement component (2) also includes a base two (209), on which a rotating frame (210) is rotatably mounted. The clamping mechanism includes a clamping frame (205) slidably mounted in the rotating frame (210). Multiple sets of clamping blocks (206) are slidably mounted on the clamping frame (205). A spring (214) is provided between the clamping block (206) and the clamping frame (205). The clamping block (206) clamps the pad wood.
6. A wind power anchor bolt transportation device according to claim 5, characterized in that: A pressing frame (207) is slidably disposed on the clamping frame (205). The pressing frame (207) is in contact with multiple sets of clamping blocks (206). When the pressing frame (207) moves, it squeezes the multiple sets of clamping blocks (206).
7. A wind turbine anchor bolt transportation device according to claim 1, characterized in that: The adjustment mechanism includes a base three (308), an adjustment plate (309) is slidably arranged on the base three (308), a lifting frame (311) is slidably arranged on the adjustment plate (309), a pushing block (312) is slidably arranged on the lifting frame (311), and the pushing block (312) pushes the wind power anchor bolt (304) to move.
8. A wind power anchor bolt transportation device according to claim 7, characterized in that: The push block (312) is provided with a toggle block (314), which toggle the wind power anchor bolt (304) to move.
9. A wind power anchor bolt transportation device according to claim 8, characterized in that: The adjustment mechanism also includes a mounting box (305), in which a baffle (307) is slidably disposed, which blocks the wind power anchor bolt (304).
10. A wind power anchor bolt transportation device according to claim 1, characterized in that: The placement box (302) is provided with a discharge chute (319), and the end of the wind power anchor bolt (304) with a nut inside the placement box (302) faces the discharge chute (319).