Conveyor transport system

Abstract

The invention relates to a conveying system comprising a carrier attached by a fastening structure to a linear motor shuttle driven along a track by a linear motor stator. While the carrier is advancing along the track, a tray pack or other conveyed object is conveyed by the carrier at a conveying section between the carrier and an infeed and outfeed conveyor.

Description

Technical Field

[0001] This invention generally relates to electrically driven conveyors. Specifically, it relates to linear motor conveyors and the conveying of pallets or other transported objects between linear motor conveyors and other conveyors. Background Technology

[0002] Linear motor conveyors (such as the ACOPOStrak conveyor system manufactured and sold by B&R Industrial Automation GmbH in Eggelsberg, Austria) electromagnetically transport products via a network of linear motor stator tracks. Shuttles are independently controlled to move around the tracks and transport products from one linear motor track to another. However, the shuttles themselves are not designed to support certain product shapes and sizes or to transfer products between the shuttle and other conveyors. Summary of the Invention

[0003] One version of the conveying system includes a linear motor conveyor, carriers, and conveying components. The linear motor conveyor includes: a track having one or more feed or discharge conveying sections; a stator having drive coils arranged along the track; and a plurality of shuttles driven by the stator along the track. Each of the plurality of carriers is mounted to one of the plurality of shuttles to support the conveyed object. The conveying component conveys the conveyed object from one of the carriers to the discharge conveyor at the discharge conveying section, or from the feed conveyor to the carrier at the feed conveying section.

[0004] One version of the carrier for a linear motor conveyor includes: a support surface on which the conveyed object is placed; a fastening structure that can be attached to a linear motor shuttle; and a conveying member that moves the conveyed object from the support surface to the discharge conveyor as the carrier moves in the conveying direction. Attached Figure Description

[0005] Figure 1 This is a top view of one version of a conveying system with a pusher to move palletized packages or other conveyed objects from a linear motor conveyor to a conveyor belt.

[0006] Figure 2 This is an isometric view of a linear motor shuttle attached to the bottom of the carrier, and... Figure 1 They are used together with conveyors.

[0007] Figure 3 yes Figure 1 An enlarged isometric view of the actuator.

[0008] Figures 4A to 4C yes Figure 1 The top view of the conveyor system shows the sequence of transferring palletized packages onto the conveyor belt.

[0009] Figures 5A to 5C It is a top view of a conveyor system with different actuators that operate optional auxiliary synchronizing pulleys to move pallet packages or other conveyed objects further onto the conveyor belt.

[0010] Figure 6 This is a top view of another version of the conveying system, which uses multiple pushers or shoe blocks to transfer palletized packages or other conveyed objects to the discharge conveyor.

[0011] Figure 7 This is an isometric view of the linear motor shuttle that supports the liftable slats in another version of the conveyor system.

[0012] Figure 8 Is it like this? Figure 7 The front view of the end of the slat in the middle.

[0013] Figure 9A and Figure 9B yes Figure 7 A sequential side view of a shuttle that conveys pallet packages to the end of a conveyor belt.

[0014] Figure 10 This is a side view of another version of the conveyor system, which has liftable support plates on a shuttle used to transfer pallets or other conveyed objects to the end of the conveyor belt.

[0015] Figure 11 This is an axonometric drawing of a liftable column, which serves as... Figure 7 slats and Figure 10 A replacement lifting device for the lifting plate.

[0016] Figure 12A and Figure 12B This is an end front view of another version of the conveying system, showing the sequence of conveying palletized packages to the discharge conveyor.

[0017] Figure 13 Is it like this? Figure 12A and Figure 12B An isometric view of the complete transport system.

[0018] Figure 14 This is an isometric view of another version of a conveying system that sweeps palletized packages or other transported objects from a linear motor conveyor to a belt conveyor.

[0019] Figure 15 Is it like this? Figure 6An isometric view of a portion of the conveyor system, showing the transfer of palletized packages from the conveyor belt to the linear motor conveyor.

[0020] Figure 16 Is it like this? Figure 15 A top view of the complete transport system.

[0021] Figure 17 yes Figure 9A and Figure 9B An isometric view of a portion of the conveying system, showing the transfer of palletized packages from the conveyor belt onto a linear motor conveyor.

[0022] Figure 18 Is it like this? Figure 17 A top view of the complete transport system.

[0023] Figure 19 This is an isometric view of another version of the conveyor system, which uses forks to transfer palletized packages between the conveyor belt and the linear motor conveyor.

[0024] Figure 20 This is an isometric view of another version of a conveyor system that uses opposing arms in a mechanism connected to a continuous shuttle to transfer pallet packages or other transported objects between a conveyor belt and a linear motor conveyor.

[0025] Figure 21A and Figure 21B yes Figure 20 A side view of a portion of the conveyor system, showing the sequence in which palletized packages are conveyed down the conveyor belt. Detailed Implementation

[0026] A version of the transmission system 30 is shown in Figure 1 In this system, the pallet bag 32 is conveyed from a linear motor conveyor 34 to a discharge conveyor 36. The linear motor conveyor 34 has a stator 38 extending along a track 40. The stator 38 has drive coils arranged along the length of the track. The drive coils of the stator 38 generate electromagnetic waves that travel along the track 40. (See diagram) Figure 2The shuttle 42 is attached to the bottom of the carrier 44, which is shown in general form as a plate. The carrier 44 has an attachment for mounting to the shuttle 42, which has the form of a mounting post 45 protruding from the bottom side of the carrier. Screws 47 secure the carrier 44 to the opposite end of the shuttle 42. The shuttle 42 in this example includes wheels and a permanent magnet whose magnetic field interacts with the traveling electromagnetic waves of the stator to generate a force that propels the shuttle along the track 40. Thus, the shuttle 42 and the stator 38 form a linear synchronous motor. (An example of such a linear motor conveyor is described in U.S. Patent No. 10,622,921 to Andreas Weber et al., B&R Industrial Automation, GmbH, dated April 4, 2020. The disclosure of that patent is incorporated herein by reference.) The slot 46 extends across the width of the carrier 44. A conveying member in the form of a pusher 48 is arranged to ride along the slot 46 in the carrier 44, which is also shown in Figure 3 middle.

[0027] The pusher 48 has a lower base 50 at the bottom side of the carrier 44. The base 50 is fastened to the upper portion 52 by a screw 54. The screw 54 extends through a hollow spacer 56, which spacees the lower base 50 from the upper portion 52 by a distance slightly greater than the thickness of the carrier 44. For example, the screw 54 may be a shouldered screw, which extends from the screw head through a hole in the lower base 50, through the spacer 56, and into a countersunk hole in the upper portion 52. The shouldered screw is screwed into the upper portion 52 above the countersunk hole, with the bottom of the shouldered screw protruding from the countersunk hole. The countersunk hole arrangement of the shouldered screw allows the spacer 56 and the lower base 50 to float on the shoulder of the screw and prevents the upper portion and base from clamping the carrier 44 and hindering the free sliding of the pusher 48. The spacer 56 rides in a groove 46. The upper portion 52 of the pusher 48 rides along the top side of the carrier 44. The upper portion 52 has an upper base 58 opposite to the lower base 50, and a screw 54 is screwed into the upper base. An elongated push rod 60 extends laterally (e.g., vertically) from the upper base 58. The push rod 60 is in the conveying direction 62 ( Figure 1 The pusher 48 extends over most of the length of the carrier 44. As the pusher 48 slides along the groove 46, the twisted protrusion 64 extending upward from the upper base 58 acts as a cam follower. The twisted protrusion 64 may include an accompanying roller as a low-friction contact with the surface of the guide cam.

[0028] Figures 4A to 4C The operation of a conveying system is illustrated in the transfer of pallet package 32 from linear motor conveyor 34 to discharge conveyor 36, such as a conveyor belt running in the conveying direction 62 within the conveying section 66 of the linear motor track 40. Figure 4AAs shown, the pallet bag 32 is supported on the support surface (i.e., top surface 68) of the carrier 44 after it has fallen from the end of the feed conveyor 70 and landed on the carrier. As the pallet bag advances along the track 40 in the conveying direction 62, the twisted protrusion 64 of the pusher 48 engages with the guide 72, which is inclined across the track toward the discharge conveyor 36, as... Figure 4B As shown in the diagram. The contact between the guide 72 and the twisted protrusion 64 causes the pusher 48 to slide along the groove 46 across the width of the carrier 44 and toward the discharge conveyor 36. The push rod 60 eventually contacts the side of the pallet bag 32 and pushes the pallet bag onto the discharge conveyor 36 in the conveyor section 66 as the pallet bag is conveyed along the track 40. The guide rail 74 is located on the side of the discharge conveyor 36 adjacent to the linear motor track 40, extending above a portion of the width of the discharge conveyor 36 to complete the conveying of the pallet bag by guiding the pallet bag 32 toward the center of the discharge conveyor.

[0029] Slightly different movable pusher 76 and carrier 78 are shown in Figures 5A to 5C In the middle. As the carrier advances in the conveying direction 62, the pusher 76 advances laterally across the carrier 78 along the two transverse slots 80, 81. After leaving the guide 72, the twisted protrusion 82 on the front end of the pusher 78 contacts the side 84 of the timing pulley 86, which is rotatable about the pivot 88. As the carrier 78 continues to advance in the conveying direction 62, as Figure 5B As shown, the twisted protrusion 82 rotates the synchronous wheel 86 and slides along the side 84 into the groove 90 between the inner end of the side and the petals 92 of the four-petal synchronous wheel 86. Each petal 92 has a rounded head 94 that extends above the side of the discharge conveyor 36 and laterally pushes the pallet bag 32 across further as the wheel 86 rotates to complete the transfer, as... Figure 5C As shown in the diagram. Upon completion of the transfer, the groove 90 and side 84 of the timing wheel 86 are parallel to the conveying direction 62. In this way, the twisted protrusion 82 slides out of the wheel groove 90 along the side 84 and disengages from the wheel 86, allowing the wheel to be oriented in place to receive the next pusher twisted protrusion 82. And the pallet bag 32 is pushed to the center of the discharge conveyor 36 by the lobe 92 of the timing wheel.

[0030] Another version of carrier 100 is shown in Figure 6 The carrier 100 has a plurality of transverse slots 102, each transverse slot having a pusher 104 or shoe block, which acts as a conveying member that rides along one of the plurality of slots. The upper portion of each pusher 104 engages with a guide 106 above the support surface (i.e., top surface 107) of the carrier 100 to guide the pusher and the pallet bag 32 laterally across the carrier to convey the pallet bag to the discharge conveyor 36 as the carrier moves in the conveying direction 62.

[0031] Another version of the transmission system is shown in Figures 7 to 9B The carrier 110 is mounted to the linear motor shuttle 112 via a suitable fastening structure on the carrier. The carrier 110 includes a series of spaced-apart slats 114 connected from below by a central beam 116 extending along the length of the carrier 110. A transverse elongated lifter 118 serves as a conveying member, located in the space between the continuous slats 114. The slats 114 are fixed slats, and the lifter 118 is a movable slat. Figure 8 As best shown, each lifter 118 has a leaf spring 120, which is held on the underside of the lifter at the laterally opposite ends. The leaf spring 120 extends through a slot (not shown) in the center beam 116 to hold the center beam in place. When the lifter 118 is in the raised position above the horizontal height of the slats 114, the spring 120... Figure 8 The image shows the object in a loaded state. In the relaxed state, the leaf spring 120 extends parallel to the top surface 122 of the lifter across the lifter 118.

[0032] Figure 9A and Figure 9B This illustrates transferring a pallet bag 32 from the linear motor conveyor to the overhead discharge conveyor 128 above the end 134 of the linear motor conveyor, rather than above its side. As the carrier 110 advances in the conveying direction 62, guides 124 along each side of the linear motor conveyor 126 guide the end of the lifter 118 onto a gentle ramp. The bottom surface 127 of the lifter's end (…) Figure 8 The guide follower 124 slides on the guide 124. The guide 124 overcomes spring pressure to raise the lift 118 to a sufficiently high raised position so that the pallet 32 ​​is conveyed onto the nose 134 of the overhead discharge conveyor 128. The gap 130 between the steeply inclined downstream end 132 of the guide 124 and the nose 134 of the discharge conveyor 128 allows the lift 118 to return to its lowered position by relaxing the leaf spring 120 that biases the lift towards the lowered position. Figure 7 The lowered position is shown in the diagram. In the lowered position, the top surface 122 of the lifter 118 is flush with or lower than the top support surface of the slat 114.

[0033] Variations of the lift are shown in Figure 10 middle. Figure 10The lifter in this design is not a movable lifter slat, but a cam lifter 136. The cam lifter 136 has an upper plate 138 connected to a lower guide follower 140. The upper plate 138 and the lower guide follower 140 extend at an angle or perpendicular to each other. A pivot 142 is located at the connection between the upper plate and the lower guide follower, pivotally connecting the lifter 136 to a carrier 144 mounted on top of a linear motor shuttle (not shown). When the lower guide follower 140 encounters the guide 146, the lower guide follower pivots the lifter 136 forward, as indicated by arrow 148, to a raised position, raising the pallet bag 32 high enough to be conveyed above the nose 134 of the discharge conveyor 128. A gap 150 between the end of the guide ramp 146 and the conveying section of the discharge conveyor 128 allows the lifter 136 to return to its lowered position by gravity and avoids contact with the discharge conveyor.

[0034] Another version of the movable lifting component is shown in Figure 11 In the middle. The lifting device 152 is a rod 154 extending laterally across the width of the carrier 156. A column 158 supports the rod 154 at its opposite ends. The column 158 is received in a hole 160 passing through the carrier 156. The bottom 162 of the rod 152 outside the column 158 serves as a guide follower, at its bottom end... Figure 9A and Figure 9B China and Figure 10 When a guide similar to the one shown (not shown) meets the column, the guide follower is pushed upward to raise the column and rod. Upon disengagement from the guide, the lifter is in a lowered position under gravity. The pallet package located on top of the rod 154 is raised for transport. A cotter pin 164 passing through the bottom of the column 158 holds the lifter 152 in the hole 160 passing through the carrier 156.

[0035] Another version of the transmission system is shown in Figures 12A to 13 In this version, at conveyor section 176, the discharge conveyor 170 has an inlet end 172 below the linear motor conveyor track 174. The carrier 178 has conveying components characterized by arms 180, 181 suspended from the base 182 attached to the linear motor shuttle 42. In this example, the movable arms 180, 181 are elongated curved plates in the conveying direction. The suspended arms 180, 181 branch from the base 182 and then converge toward the distal ends 184, 185 forming hooks. The converging hook ends of the arms 180, 181 are spaced apart and form an angle that approximately matches the sides of the pallet bag 32. In this way, the pallet bag 32 can be suspended from the arms 180, 181 such that the bottom 186 of the pallet bag is suspended below the horizontal height of the distal ends 184, 185 of the arms, as... Figure 12A As shown in the diagram, the inner surface 183 of arms 180 and 181 serves as a support surface for the pallet bag 32 to rest on.

[0036] The pallet bag 32 is conveyed from above along the conveyor section 176 to the discharge conveyor 170, such as... Figure 12B and Figure 13 As shown in the diagram. When the carrier 178 has positioned the pallet bag 32 with its bottom 186 on the upper surface 188 of the discharge conveyor 170, the shuttle 42 slows down or stops to allow the discharge conveyor to pull the pallet bag out of the arms 180, 181, thereby leaving the carrier 178, as shown. Figure 13 As best shown in the diagram. The empty carrier 178 then separates from the discharge conveyor 170 around a turn in track 174. The ramp inlet 190 at the inlet end 172 of the discharge conveyor 170 reduces the distance between the upper surface 188 of the conveyor and the distal ends 184, 185 of the arms 180, 181, causing the pallet bag 32 to gradually rise and disengage from the arms at the upper end of the ramp inlet. In this way, the pallet bag 32 can be cleanly and neatly released from the arms 180, 181.

[0037] Figure 13 The conveying system also shows a feed section 192, where pallet bags 32 are conveyed from feed conveyor 194 to carrier 178. Similar to the discharge conveyor 170, feed conveyor 194 runs parallel to and beneath the linear motor conveyor track 174 along feed section 192. Although in Figure 13 While shown collinearly, both the feed conveyor 194 and the discharge conveyor can be positioned along other sections of track 174 (such as on opposite sides). As the carrier 178 rapidly enters a position above the feed conveyor 194 from a bend in track 174, it decelerates relative to the feed conveyor to collect pallet packages 32. Alternatively, the carrier 178 can accelerate relative to the feed conveyor 194 to collect pallet packages 32, but this would require a longer feed section. The plowshare 196 at the inlet end of the feed conveyor 194 individually separates and positions the pallet packages 32 in a straight line with the carrier 178.

[0038] Shown in Figure 14 The conveying system transfers pallet packages 32 from a carrier 202 to a discharge conveyor 200, the carrier being in the form of a plate. The plate 202 is attached to a shuttle 42 driven along a linear motor track 204. Conveying occurs along a conveyor section 206 at the inlet end of the discharge conveyor 200. A side rail 208 extends along the length of the inlet end of the discharge conveyor 200. The track 204 branches off from the side of the discharge conveyor 200 at a turn 210. The plate 202 is thin enough to fit between the bottom of the side rail 208 and the upper surface 212 of the discharge conveyor 200. As the plate 202, driven by the shuttle 42, rotates, the side rail 208 detaches the pallet package 32 from the plate and places it onto the discharge conveyor 200 to complete the transfer.

[0039] Figure 15As shown Figure 6 The carrier 100 shown has a plurality of pushers 104 as conveying members, which receive pallet packages 32 onto a top support surface 107 at a feed conveying section 214 at the outlet end of the feed conveyor 216. The feed conveyor 216 is parallel to and elevated above the linear motor track 218. The pallet packages 32 conveyed from the end of the feed conveyor 216 slide onto the carrier 100, which is slightly below it.

[0040] Figure 16 An example of a complete transmission system is shown, which includes two such as Figure 15 The feed conveyors 216, 216' and single ones shown are as follows: Figure 6 The discharge conveyor 36 is shown. The linear motor track system includes a high-speed track 218 and a branch track 220. The branch track 220 receives pallet packages delivered from above by the second feed conveyor 216' and reconnects to the high-speed track 218 just upstream of the conveyor section 222, where the pallet packages 32 are conveyed to the discharge conveyor 36, as previously discussed. Figure 6 As stated above.

[0041] Pallet 32 ​​from feed conveyor 224 to Figure 7 The transmission on the carrier 110 in the middle is shown in Figure 17 In the middle, guides 226 on opposite sides of the linear motor track 126 raise the elevator 118 (transfer member) to an elevated position to receive pallet packages 32 exiting from the outlet end of the overhead feed conveyor 224, achieving smooth transfer with minimal descent. Each guide 226 has an inlet ramp 228 that rapidly raises the elevator 118 from its lowered position to its elevated position by contacting the bottom surface 127 of the elevator, which serves as a guide follower. The guide 226 maintains a constant height throughout its horizontal section 230 downstream of the inlet ramp 228, which is long enough to horizontally support the pallet packages 32 upon completion of transfer. The guide 226 terminates downstream of the horizontal section 230 at a gradually descending outlet ramp 232, which allows the elevator's leaf springs to gradually relax as the elevator 118 smoothly returns to its lowered position. Figure 18 It shows something similar to Figure 16 An exemplary transmission system 234 in the transmission system, but using Figure 7 The carrier 110.

[0042] Another example of a transmission system is shown in Figure 19In this conveying system, a fork-shaped carrier 240 is fastened to a linear motor shuttle 42. Each carrier 240 has a fork with two tines 242 extending from a base 243 and spaced apart by a distance corresponding to the length or width of the pallet bag 32. The inner surface 245 of the tines 242 is angled to match the angled sides of the pallet bag 32 and serves as a support surface for the pallet bag. The feed conveyor includes an upstream belt 244 and a downstream belt 246, which are separated by a gap above a linear motor track 248. The carriers 240 are driven by the shuttle 42 along the linear motor track 248, the shuttle 42 being transverse to the travel direction 249 of the feed conveyors 244, 246. When the pallet bag 32 is centered above the track 248 below the feed conveyor section 250, the tines 242 of the forks 240 surround the sides of the pallet bag and remove the pallet bag from the feed conveyor. The serrations 242 are shaped to match the sides of the pallet bag 32. As it exits the feed belts 244 and 246, the bottom of the pallet bag aligns with... Figure 12A The carrier 178 is positioned below the horizontal level of the cusp 242 in a similar manner.

[0043] Pallet bag 32 is conveyed away from carrier 240 at discharge conveyor section 252 of track 248. The discharge conveyor comprises two conveyor belts 254, 256 separated by a narrow gap centered above track 248. The outer surfaces of the discharge conveyor belts 254, 256 are at a slightly lower level than the outer surfaces of the feed conveyor belts 244, 246. The feed conveyor is at a higher level to provide clearance for the fork tines 242 below the edge of the pallet bag 32 for clean and efficient pickup. Once picked up, the pallet bag 32 falls slightly into a fully supported position between the tines 242 as it exits the feed conveyor. The discharge conveyor is at a lower level to allow the pallet bag 32 to be carried above the discharge conveyor without being pushed out by belts 254, 256. As the fork carrier 240 is driven through discharge conveyor section 252, the bottom of the suspended pallet bag 32 contacts a pair of stationary pads 255 suspended above the edges of the discharge conveyor belts 254, 256. Pad 255 blocks pallet bag 32 and separates it from the tines 242 of carrier 240 as it continues to move along track 248. Once the tines 242 have left the blocked pallet bag 32, the pallet bag falls completely onto the outer surfaces of belts 254, 256 to complete the transfer.

[0044] A version of a transport system using paired shuttles operating in series is shown in Figure 20 , Figure 21A and Figure 21BIn this version, the carrier is a multi-bar mechanism 274 simultaneously mounted to two consecutive shuttles 42, 42'. This mechanism includes two upper gripping arms 276, 277, which, by controlling the spacing between the two shuttles 42, 42', act as a release position (e.g., ...). Figure 21A (as shown) and clamping position (as shown) Figure 21B The conveyor components move between (as shown in the diagram). When shuttles 42 and 42' are... Figure 21A When the first gap is separated, the ends of arms 276 and 277 are tilted away from each other in the release position to receive pallet bags 32 from the upper feed conveyor 278 or release pallet bags onto the upper discharge conveyor 280. As the shuttles 42 and 42' move closer together and separate by a smaller second gap, mechanism 274 pivots the two arms 276 and 277 toward each other as shown in the figure. Figure 21B The clamping position in the arm grips the pallet bag 32 at the feed conveyor section 281 of the track between the two support surfaces 284 at the end of the arm and carries it to the discharge conveyor section 282, where it can be conveyed to the discharge conveyor 280.

[0045] Regarding the conveying of palletized packages, various versions of conveying systems have been described as convenient examples of the objects being conveyed. However, various conveying systems can be used to convey other objects, such as boxes, cartons, bagged envelopes, and raw or unpackaged food. Furthermore, the feed and discharge conveyors already described in the examples as belt conveyors can alternatively be implemented as roller conveyors, slat conveyors, flat belt conveyors, or modular belt conveyors, as further examples.

Claims

1. A transmission system, comprising: A linear motor conveyor, the linear motor conveyor comprising: The track has one or more feed or discharge conveying sections extending along the conveying direction; A stator having drive coils arranged along the track; Multiple shuttles, which are not connected to each other and are driven by the stator along the track in the transport direction; Multiple carriers, each of which is mounted to a single shuttle among the multiple shuttles to support the transported object; Discharge conveyor; Conveying components; The conveying component is arranged on one of the carriers, and at the discharge conveying section, it conveys the object to be transported from the carrier to the discharge conveyor. A guide that slopes across the track toward the discharge conveyor at the discharge conveying section, wherein the discharge conveyor is laterally adjacent to the track at the discharge conveying section, and wherein the conveying member includes one or more pushers, each pusher having a push rod extending along the conveying direction, a lower base located at the bottom side of the carrier, an upper portion located at the top side of the carrier, and a guide follower extending upward from the upper portion to ride along the guide as the shuttle advances along the discharge conveying section, wherein the guide is arranged to guide the pusher laterally across the carrier so that the push rod pushes the conveyed object onto the discharge conveyor.

2. The conveying system according to claim 1, wherein the conveyed object is a pallet bag.

3. A transmission system, comprising: A linear motor conveyor, the linear motor conveyor comprising: The track has one or more feed or discharge conveying sections extending along the conveying direction; A stator having drive coils arranged along the track; Multiple shuttles, which are not connected to each other and are driven by the stator along the track in the transport direction; Multiple carriers, each of which is mounted to a single shuttle among the multiple shuttles to support the transported object; Discharge conveyor; Conveying components; The conveying component is arranged on one of the carriers, and at the discharge conveying section, the object to be conveyed is transferred from the carrier to the discharge conveyor. The conveying system further includes a guide at the discharge conveying section, wherein the discharge conveyor has a nose end located above the track at the discharge conveying section, and wherein the conveying component includes one or more lifters, each lifter having a guide follower that rides on the guide as the shuttle advances along the discharge conveying section, wherein the guide is arranged to raise the lifter from a lowered position to an raised position to raise the conveyed object to the inlet end of the discharge conveyor.

4. The conveying system of claim 3, wherein the lifter is a slat supporting the conveyed object, and wherein the lifter includes a spring biasing the lifter toward the lowered position.

5. The conveying system of claim 3, wherein when the guide follower mounts the guide, the lifter pivots from the lowered position to the raised position, and wherein the lifter is in the lowered position once the guide follower dismounts from the guide.

6. The conveying system according to claim 3, wherein the conveyed object is a pallet bag.

7. A transmission system, comprising: A linear motor conveyor, the linear motor conveyor comprising: The track has one or more feed or discharge conveying sections extending along the conveying direction; A stator having drive coils arranged along the track; Multiple shuttles, which are not connected to each other and are driven by the stator along the track in the transport direction; Multiple carriers, each of which is mounted to a single shuttle among the multiple shuttles to support the transported object; Discharge conveyor; Conveying components; The conveying component is arranged on one of the carriers, and at the discharge conveying section, the object to be conveyed is transferred from the carrier to the discharge conveyor. The conveying system further includes a synchronizing wheel at the discharge conveying section, the synchronizing wheel being rotated by the carrier passing through the conveying section, wherein the synchronizing wheel has a lobe that, when the synchronizing wheel is rotated, pushes the conveyed object further across the width of the discharge conveyor.

8. The transmission system according to claim 7, wherein the carrier comprises: A plate having a top surface as a support surface for supporting the conveyed object, and one or more grooves passing through the plate transversely to the conveying direction; One or more of the conveying members, wherein the one or more conveying members are movable along the one or more slots to push an article across the support surface.

9. The conveying system of claim 8, the conveying system comprising a linear motor shuttle, and the carrier comprising a fastening structure extending from the bottom side of the plate and attached to the linear motor shuttle.

10. The conveying system of claim 7, wherein the conveyed object is a pallet bag.

11. A transmission system, comprising: A linear motor conveyor, the linear motor conveyor comprising: The track has one or more feed or discharge conveying sections extending along the conveying direction; A stator having drive coils arranged along the track; Multiple shuttles, which are not connected to each other and are driven by the stator along the track in the transport direction; Multiple carriers, each of which is mounted to a single shuttle among the multiple shuttles to support the transported object; At the feeding conveyor section, located above the track, the object being conveyed is transferred from the outlet end of the feeding conveyor to the carrier. The guide at the feed conveyor section; The conveying component on the carrier; The conveying member transfers the object to be transported from the feed conveyor to the carrier at the feed conveying section. The conveying member includes one or more lifters, each lifter having a guide follower that rides on the guide as the shuttle moves along the conveying section. The guide is arranged to raise the lifter from a lowered position to an elevated position at the horizontal level of the outlet end of the feed conveyor to receive the object to be transported from the feed conveyor.

12. The conveying system of claim 11, wherein the lifter is a slat supporting the conveyed object, and wherein the lifter includes a spring biasing the lifter to the lowered position.

13. The conveying system of claim 11, wherein the conveyed object is a pallet bag.

14. A transmission system, comprising: A linear motor conveyor, the linear motor conveyor comprising: The track has one or more feed or discharge conveying sections extending along the conveying direction; A stator having drive coils arranged along the track; Multiple shuttles are driven by the stator along the track in the conveying direction; Multiple carriers, each mounted on two consecutive shuttles on the track to support the transported object; Conveying components; Wherein, the conveying component conveys the object to be conveyed from one of the carriers to the discharge conveyor at the discharge conveying section, or from the feed conveyor to the carrier at the feed conveying section; The two continuous shuttles are driven toward and away from each other, from a first gap to a larger second gap. In the first gap, the two carriers hold the conveyed object, and in the second gap, the two carriers release the conveyed object at the discharge conveyor section.

15. The conveying system of claim 14, wherein the carrier includes a mechanism and a relative arm, the relative arm being operated by the mechanism to grasp the conveyed object when the shuttle is at the first interval and to release the conveyed object when the shuttle is at the second interval.

16. The conveying system of claim 14, wherein the conveyed object is a pallet bag.

17. A carrier for a linear motor conveyor, comprising: A support surface on which the object to be transported is placed; A fastening structure that can be attached to a linear motor shuttle; A conveying member that moves the conveyed object from the support surface to the discharge conveyor as the carrier moves forward in the conveying direction; Multiple fixed strips are spaced apart in the conveying direction, wherein the stationary strips have the support surface on top; A plurality of conveying members are arranged between the stationary slats and have a top surface, wherein the plurality of conveying members are movable from a lowered position to an raised position, wherein in the lowered position the top surface of the conveying member is located at or below the horizontal level of the support surface of the stationary slat, and in the raised position the top surface of the conveying member is located above the horizontal level of the support surface of the stationary slat; A spring located on each of the plurality of conveying members biases the conveying member to the lowered position.

Images