Tray conveying mechanism

Abstract

The utility model relates to the field of automatic transportation, in particular to a tray conveying mechanism which comprises a conveying line, a sensing assembly, a blocking assembly and a pressing assembly. And two conveying lines which operate synchronously and are flush with each other form a group. The conveying line comprises a supporting frame, a first rail arranged on the supporting frame and parallel to the first direction and conveying belts partially supported on the first rail and running along the first rail, the two sides of the tray are supported on the two conveying belts respectively, and the tray controllably moves towards the first direction along with the conveying belts. The sensing assembly is used for sensing that the tray reaches the operation position. The blocking assembly comprises a lifting piece and a baffle, and the baffle is driven by the lifting piece to controllably block or release the tray reaching the operation position. The downward pressing assembly is arranged on the conveying line and comprises a power piece and a pressing plate, and the pressing plate is driven by the power piece to controllably press the tray located at the operation position to the first track. The tray is stably positioned through multiple fixing, the overall structure is simple, cost is low, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of automated transportation, in particular to a pallet transmission mechanism. Background Art

[0002] When a large number of workpieces need to be sequentially secured to a workstation for handling, they are typically transported using a friction-driven conveyor belt. Upon reaching the workstation, a lifting mechanism located between the two conveyor belts lifts the pallet carrying the workpieces, separating it from the conveyor belts and positioning it at the workstation without burdening the mechanical structure. However, this design can cause the pallet to jolt during the lifting process, subjecting the workpieces inside to significant impact.

[0003] Currently, some transport mechanisms use a fixed-point transport method to transport each pallet individually in sequence. This structure is usually costly and has a limited transport quantity, so its use environment is restricted. Utility Model Content

[0004] The purpose of the utility model is to provide a tray transmission mechanism with strong practicality and stable tray positioning.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] A pallet transmission mechanism includes a transfer module, wherein the transfer module includes:

[0007] A conveyor line, wherein two conveyor lines separated from each other and arranged opposite to each other form a group, the two conveyor lines in the same group are controllably and synchronously operated along a first direction and are arranged flush, the conveyor line comprising a support frame, a first track provided on the support frame and parallel to the first direction, and a conveyor belt partially supported on and operating along the first track, the two sides of the pallet being respectively supported on the two conveyor belts and controllably moving along the conveyor belts in the first direction;

[0008] A sensing component, used for sensing that the tray has reached an operating position;

[0009] A blocking assembly, comprising a lifting member and a baffle, wherein the baffle is driven by the lifting member to controllably block or release the pallet that has reached the operating position;

[0010] The pressing assembly is arranged on the conveying line and includes a power member and a pressing plate. Driven by the power member, the pressing plate can controllably press the tray located at the operating position onto the first track.

[0011] Optionally, the pressing assembly further includes a stop block and a rotating shaft, the rotating shaft is rotatably connected to the conveying line, the power member pushes the stop block connected to the rotating shaft to rotate, and drives the pressure plate connected to the rotating shaft to press the pallet against the first track.

[0012] Optionally, the transfer module also includes an adjustment component, which includes a fixed frame, a second screw, a second track parallel to the second screw, and a sliding frame slidably connected to the second track, the second track is arranged on the workbench, the support frame of any one of the conveying lines is supported on the workbench through the fixed frame, and the support frame of the other conveying line is supported on the sliding frame, a second screw hole is formed on the sliding frame, the second screw is engaged with the second screw hole, and has an active end and a driven end opposite to the active end, the driven end of the second screw is rotatably connected to the fixed frame, and passes through the sliding frame through the second screw hole, and the sliding frame slides along the second track as the second screw rotates.

[0013] Optionally, the pallet transmission mechanism includes multiple groups of the transfer modules, and the conveyor belts of different transfer modules operate independently.

[0014] Optionally, a transmission wheel coaxial with the second screw is connected to the second screw, and multiple groups of the transfer modules are arranged along the first direction. The transmission wheels of the transfer modules are connected by belts and rotate synchronously.

[0015] Optionally, the pallet transmission mechanism further includes a tensioning assembly, which includes a base, a first hook plate fixedly connected to the base, a second hook plate slidably connected to the first hook plate, a tension spring detachably connected between the first hook plate and the second hook plate, and a resistance member connected to the second hook plate, the first hook plate is located between the second hook plate and the resistance member, the tension spring is pre-tightened to a stretched state, and the resistance member resists the wheel belt.

[0016] Optionally, a plurality of groups of the tensioning assemblies are arranged between adjacent transmission wheels, and any two groups of the tensioning assemblies are arranged adjacent to the transmission wheels.

[0017] Optionally, the conveyor line also includes a plurality of synchronous wheels rotatably connected to the support frame, a tensioning wheel abutting against the outside of the conveyor belt, a conveying motor, a tensioning block and a first screw that drives any of the synchronous wheels to rotate controllably, the conveyor belt cooperates with the synchronous wheel and surrounds the tensioning wheel, the support frame is provided with a slide groove on the side away from the conveyor belt, a long through hole connecting the two sides of the support frame is provided in the slide groove, the tensioning block is embedded in the slide groove and slides in the slide groove through the long through hole, a first screw hole is formed in the tensioning block that penetrates into the interior and is parallel to the long through hole, one end of the first screw that cooperates with the first screw hole penetrates into the first screw hole, and the other end contacts the inner wall of the slide groove, and the tensioning wheel is rotatably connected to the tensioning block.

[0018] Optionally, the sensing assembly includes at least two in-place sensors, and when the tray is located at the operating position, the sensing positions of the two in-place sensors correspond to positions adjacent to the edge of the tray.

[0019] Optionally, the transfer module further includes at least two passing sensors, and the passing sensors are respectively arranged at positions adjacent to both ends of the first track.

[0020] The beneficial effects of this utility model are as follows: when the sensor assembly senses that the pallet has reached the operating position along the conveyor belt, the conveyor line stops, the lifting member drives the baffle plate to rise and contact the pallet, and the power member drives the pressure plate to press the two edges of the pallet against the first track, helping to smoothly stop the pallet at the operating position, preventing the pallet from continuing to move due to inertia, or preventing workpieces in the pallet from being damaged by impact or falling off the pallet. This pallet transmission mechanism has a relatively simple structure and low cost, can be applied to a variety of different scenarios, and has high practicality.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the tray transmission mechanism shown in the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 Enlarged schematic diagram of part A.

[0024] Legend: 101-Pallet, 1-Transfer module, 11-Conveyor line, 111-Support frame, 112-First track, 113-Conveyor belt, 114-Synchronous wheel, 115-Conveyor motor, 116-Slide, 117-Tension wheel, 118-Tension block, 119-First screw, 121-Pass sensor, 122-Over position sensor, 13-Blocking assembly, 131-Lifting component, 132-Baffle, 14-Lower Pressure assembly, 141-power part, 142-block, 143-rotating shaft, 144-pressure plate, 15-adjustment assembly, 151-fixed frame, 152-sliding frame, 153-second screw, 154-second track, 155-transmission wheel, 2-wheel belt, 3-tensioning assembly, 31-base, 32-first hook plate, 33-second hook plate, 34-tension spring, 35-constraint plate, 361-track part, 362-matching part. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] See Figure 1 and Figure 2 The pallet transmission mechanism protected by the present utility model application includes a transfer module 1, which includes a conveyor line 11, a sensor component, a blocking component 13 and a pressing component 14. Two conveyor lines 11 separated from each other and arranged opposite to each other form a group. The two conveyor lines 11 in the same group are controllably and synchronously operated along a first direction and are arranged flush. The conveyor line 11 includes a support frame 111, a first track 112 arranged on the support frame 111 and parallel to the first direction, and a conveyor belt 113 partially supported on the first track 112 and running along the first track 112. Both sides of the pallet 101 are respectively supported on the two conveyor belts 113 and controllably move along the conveyor belts 113 toward the first direction. The sensor component is used to sense that the pallet 101 has reached the operating position. The blocking component 13 includes a lifting member 131 and a baffle 132. The baffle 132 is controllably driven by the lifting member 131 to block or release the pallet 101 that has reached the operating position. The pressing assembly 14 is disposed on the conveyor line 11 and includes a power member 141 and a pressing plate 144 . Driven by the power member 141 , the pressing plate 144 can controllably press the tray 101 located at the operating position against the first track 112 .

[0030] When the sensor assembly senses that the pallet 101 has arrived at the operating position along the conveyor belt, the conveyor line 11 stops, and the lifting member 131 drives the baffle 132 to rise and contact the pallet 101. Simultaneously, the power member 141 drives the pressure plate 144 to press the two side edges of the pallet 101 against the first track 112, helping to smoothly stop the pallet 101 at the operating position and prevent the pallet 101 from continuing to move due to inertia, or the workpieces in the pallet 101 from being damaged by the impact or falling off the pallet 101. This pallet transmission mechanism has a relatively simple structure and low cost, can be applied to a variety of different scenarios, and has high practicality.

[0031] Please refer to the following examples for details.

[0032] Example 1:

[0033] See Figure 1 and Figure 2 A preferred embodiment of the present invention shows a pallet transport mechanism comprising two transfer modules 1 arranged along a first direction. The transfer modules 1 are independently controlled, and the conveyor lines 11 of the different transfer modules 1 are arranged adjacent to each other, so that the pallet 101 arrives at the next transfer module 1 immediately after leaving the previous transfer module 1.

[0034] The transfer module 1 includes a conveying line 11 , a sensor component, a blocking component 13 and a pressing component 14 .

[0035] The conveyor line 11 includes a support frame 111, a first rail 112, a conveyor belt 113, synchronous pulleys 114, and a conveyor motor 115. The support frame 111 is vertically arranged and parallel to the first direction. The first rail 112 is horizontally fixedly connected to the side of the support frame 111 near the other support frame 111 and parallel to the first direction. The conveyor motor 115 is supported by the support frame 111 and is connected to drive the synchronous pulley 114 arranged below the first rail 112 to rotate along the central axis. The other two synchronous pulleys 114 are respectively arranged at positions adjacent to the ends of the first rail 112. The conveyor belt 113 surrounds the three synchronous pulleys 114. Its inner surface meshes with each synchronous pulley 114 through gear teeth, and its outer surface is flat. The portion of the conveyor belt 113 connected between the two upper synchronous pulleys 114 is parallel to the first direction and supported above the first rail 112. Two synchronously running and flushly arranged conveyor lines 11 form a group, and the distance between the two conveyor lines 11 matches the width of the pallet 101 so that both ends of the pallet 101 are just supported above the two conveyor belts.

[0036] The transmission line 11 also includes a tensioning wheel 117, a tensioning block 118 and a first screw 119. A horizontal slide 116 is provided on the side of the support frame 111 away from the synchronous belt. A long through hole is provided in the slide 116, which connects the two sides of the support frame 111 and extends in the horizontal direction. The structure of the tensioning block 118 is matched with the slide 116 and the long through hole. Part of it is embedded in the slide 116, and part of it is embedded in the long through hole. The part of the tensioning block 118 embedded in the slide 116 is formed with a first screw hole that penetrates deep into the interior and remains horizontal. The first screw 119 is matched with the first screw hole. One end of the first screw 119 penetrates into the tensioning block 118, and the other end is rotatably connected to the inner wall of the slide 116, so that the tensioning block 118 can slide horizontally in a controllable manner in the slide 116 as the first screw 119 rotates. The tensioning wheel 117 is rotatably connected to the tensioning block 118 , and has the same height as the synchronous wheel 114 disposed above it, and contacts the outer surface of the conveyor belt 113 . By adjusting the horizontal position of the tensioning wheel 117 , the conveyor belt 113 is kept in a tensioned state.

[0037] The sensing assembly is connected to the support frame 111 and is disposed between the first rail 112 and the other conveyor line 11, adjacent to the first rail 112. The sensing direction of the sensing assembly is vertically upward, and is used to sense whether a pallet 101 passes overhead. The sensing assembly includes two in-position sensors, two pass sensors 121, and one over-position sensor 122. The two pass sensors 121 are used to sense whether the pallet 101 has reached the top of the conveyor belt 113 and whether the pallet 101 has left the top of the conveyor belt 113, respectively. The two in-position sensors are used to sense whether the pallet 101 has reached the operating position. When the pallet 101 is in the operating position, the sensing positions of the two in-position sensors correspond to the positions of the pallet 101 adjacent to both ends in the first direction. When both in-position sensors sense the pallet 101, it can be determined that the pallet 101 is in the operating position, and the conveyor belt 113 stops running. When the operation is completed and the pallet 101 leaves the operating position and continues to move toward the first direction, the over-position sensor 122 senses the pallet 101.

[0038] The blocking assembly 13 includes a lifting member 131 and a baffle 132. The lifting member 131 is a pneumatic cylinder that drives the baffle 132 to rise and fall in a controlled manner. When the sensor assembly senses that the tray 101 is in the operating position, the baffle 132 rises, preventing the tray 101 from continuing to move in the first direction.

[0039] The pressing assembly 14 is arranged in the operating position, and includes a power member 141, a stopper 142, a rotating shaft 143 and a pressure plate 144. The rotating shaft 143 is arranged horizontally along the first direction and is rotatably connected to the upper side of the support plate. The power member 141 is a cylinder, which is fixedly connected to the side of the support plate away from the first track 112. The stopper 142 is fixedly connected to the rotating shaft 143 and its position corresponds to that of the power member 141. The pressure plate 144 is fixedly connected to the rotating shaft 143 and is close to the conveyor belt 113. When the sensing assembly senses that the tray 101 is in the operating position, the power member 141 pushes the stopper 142 upward, drives the rotating shaft 143 to rotate, and then drives the pressure plate 144 to press down toward the first track 112, causing the tray 101 to be clamped between the pressure plate 144 and the first track 112. In other embodiments, the stopper 142 can be rotatably connected to the free end of the power member 141 or connected to the support plate through a compression spring, thereby facilitating the return of the stopper 142.

[0040] The transfer module 1 also includes an adjustment assembly 15, which includes a fixed frame 151, a sliding frame 152, a second screw 153, and a second track 154. The second screw 153 and the second track 154 are both arranged horizontally and perpendicular to the first direction. The second track 154 is arranged on a workbench, and the vertically arranged sliding frame 152 is slidably connected to the second track 154. In this embodiment, the workbench is the ground. The support frame 111 of the conveyor line 11 connected to the sensor assembly is supported on the workbench via the fixed frame 151, and the support frame 111 of the other conveyor line 11 is supported on the sliding frame 152, so that the distance between the two conveyor lines 11 can be controlled to accommodate pallets 101 of different specifications. The second screw 153 has an active end and a driven end opposite the active end, and a second screw hole is formed on the sliding frame 152 to match the second screw 153. The driven end of the second screw 153 is rotatably connected to the fixed frame 151 and passes through the sliding frame 152 via the second screw hole. When the active end of the second screw 153 rotates, the two conveying lines 11 can be controllably moved closer to or farther away from each other.

[0041] Adjustment assembly 15 also includes a transmission wheel 155 fixedly connected to a position adjacent to the active end of second screw 153. Transmission wheel 155 is coaxial with second screw 153. Transmission wheels 155 of two different transfer modules 1 are connected by a belt 2 that engages with transmission wheel 155, allowing for synchronous rotation. In this embodiment, a rocker is provided at the active end of each second screw 153 to drive synchronous rotation of the second screw 153.

[0042] The pallet transport mechanism also includes a tensioning assembly 3, which comprises a base 31, a first hook plate 32, a second hook plate 33, a tension spring 34, a restraining plate 35, and a resisting member. The base 31 is fixedly connected to the workbench. The first hook plate 32 is horizontally arranged along a first direction and fixedly connected to the base 31. A wide hook that curves upward is formed on the side of the first hook plate 32, and two cylindrical through-holes are formed in the first hook plate 32. A horizontal restraining plate 35 is fixedly connected to the base 31 and positioned below the first hook plate 32. The restraining plate 35 has two circular through-holes corresponding to the first hook plate 32. The horizontal second hook plate 33 is positioned below the restraining plate 35 and has another wide hook that curves downward on its side. The two wide hooks are positioned correspondingly. A resisting member is fixedly connected above the second hook plate 33. The resisting member includes a rail portion 361 and a mating portion 362. The two ends of the track portion 361 are fixedly connected to the track portion 361 and the second hook plate 33, respectively, and include two cylindrical structures that pass through the constraint plate 35 and the first hook plate 32 in sequence. A groove that fits the wheel band 2 is formed at the top of the track portion 361 for accommodating the wheel band 2. Rings are provided at both ends of the tension spring 34 and are detachably connected to the two wide hooks through the rings. The tension spring 34 is in a pre-tightened state, that is, when the track portion 361 of the abutment contacts the wheel band 2, the distance between the first hook plate 32 and the second hook plate 33 is greater than the initial length of the tension spring 34, causing the tension spring 34 to be in a stretched state. As the wheel band 2 loosens, the second hook plate 33 moves upward under the action of the tension spring 34, causing the abutment to contact the wheel band 2 upward, thereby achieving tensioning of the wheel band 2. In this embodiment, a set of tensioning assemblies 3 are respectively provided near the two transmission wheels 155 to help improve the tensioning effect.

[0043] The beneficial effect of the present invention is that by multiple fixations of the tray 101 that has reached the operating position, the tray 101 is facilitated to be positioned stably. The structure of the tray transmission mechanism is relatively simple and low in cost, and it can be applied to a variety of different scenarios and trays 101 of different specifications. The operation is simple and fast, and it has high practicality.

[0044] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A pallet transmission mechanism, characterized in that: The invention comprises a transfer module (1), wherein the transfer module (1) comprises: A conveyor line (11), wherein two conveyor lines (11) separated from each other and arranged opposite to each other form a group, wherein the two conveyor lines (11) in the same group are controllably and synchronously operated along a first direction and are arranged flush, wherein the conveyor line (11) comprises a support frame (111), a first track (112) arranged on the support frame (111) and parallel to the first direction, and a conveyor belt (113) partially supported on the first track (112) and operating along the first track (112), wherein both sides of the pallet (101) are respectively supported on the two conveyor belts (113) and controllably move along the conveyor belts (113) toward the first direction; A sensing component for sensing that the tray (101) has reached an operating position; A blocking assembly (13) comprising a lifting member (131) and a baffle (132), wherein the baffle (132) is driven by the lifting member (131) to controllably block or release the tray (101) that has reached the operating position; A pressing assembly (14) is arranged on the conveying line (11), and comprises a power member (141) and a pressing plate (144). Driven by the power member (141), the pressing plate (144) can controllably press the tray (101) located at the operating position against the first track (112).

2. The pallet transport mechanism according to claim 1, wherein: The pressing assembly (14) further includes a stop block (142) and a rotating shaft (143), wherein the rotating shaft (143) is rotatably connected to the conveying line (11), and the power member (141) pushes the stop block (142) connected to the rotating shaft (143) to rotate, thereby driving the pressure plate (144) connected to the rotating shaft (143) to press the tray (101) against the first track (112).

3. The tray transport mechanism according to claim 1, wherein: The transfer module (1) further includes an adjustment component (15), the adjustment component (15) including a fixed frame (151), a second screw (153), a second track (154) parallel to the second screw (153), and a sliding frame (152) slidably connected to the second track (154), the second track (154) is arranged on a workbench, the support frame (111) of any one of the conveying lines (11) is supported on the workbench through the fixed frame (151), and the support frame (111) of the other conveying line (11) is supported on the workbench through the fixed frame (151). The support frame (111) is supported on the sliding frame (152), and a second screw hole is formed on the sliding frame (152). The second screw rod (153) is matched with the second screw hole and has an active end and a driven end opposite to the active end. The driven end of the second screw rod (153) is rotatably connected to the fixed frame (151) and passes through the sliding frame (152) through the second screw hole. The sliding frame (152) slides along the second track (154) as the second screw rod (153) rotates.

4. The tray transport mechanism according to claim 3, wherein: It comprises a plurality of transfer modules (1), and the conveyor belts (113) of different transfer modules (1) operate independently.

5. The tray transport mechanism according to claim 4, wherein: The second screw (153) is connected to a transmission wheel (155) coaxial with the second screw (153). Multiple groups of transfer modules (1) are arranged along the first direction, and the transmission wheels (155) of each transfer module (1) are connected by a belt (2) and rotate synchronously.

6. The tray transport mechanism according to claim 5, wherein: The invention also includes a tensioning assembly (3), wherein the tensioning assembly (3) includes a base (31), a first hook plate (32) fixedly connected to the base (31), a second hook plate (33) slidably connected to the first hook plate (32), a tension spring (34) detachably connected between the first hook plate (32) and the second hook plate (33), and a resistance member connected to the second hook plate (33), wherein the first hook plate (32) is located between the second hook plate (33) and the resistance member, the tension spring (34) is pre-tightened to a stretched state, and the resistance member resists the wheel band (2).

7. The tray transport mechanism according to claim 6, wherein: A plurality of groups of the tensioning assemblies (3) are arranged between adjacent transmission wheels (155), and any two groups of the tensioning assemblies (3) are arranged adjacent to the transmission wheels (155).

8. The tray transport mechanism according to claim 1, wherein: The conveying line (11) further comprises a plurality of synchronous wheels (114) rotatably connected to the support frame (111), a tensioning wheel (117) abutting against the outside of the conveying belt (113), a conveying motor (115) for driving any of the synchronous wheels (114) to controllably rotate, a tensioning block (118) and a first screw (119); the conveying belt (113) is fitted with the synchronous wheels (114) and surrounds the tensioning wheel (117); a sliding groove (116) is provided on the side of the support frame (111) away from the conveying belt (113) The slide groove (116) is provided with a long through hole connecting the two sides of the support frame (111), the tensioning block (118) is embedded in the slide groove (116), and slides in the slide groove (116) through the long through hole, and a first screw hole is formed in the tensioning block (118) that penetrates into the interior and is parallel to the long through hole, and one end of the first screw rod (119) that cooperates with the first screw hole penetrates into the first screw hole, and the other end contacts the inner wall of the slide groove (116), and the tensioning wheel (117) is rotatably connected to the tensioning block (118).

9. The tray transport mechanism according to claim 1, wherein: The sensing assembly comprises at least two in-place sensors. When the tray (101) is located at the operating position, the sensing positions of the two in-place sensors correspond to positions adjacent to the edge of the tray (101).

10. The tray transport mechanism according to claim 1, wherein: The transfer module (1) further comprises at least two passing sensors (121), wherein the passing sensors (121) are respectively arranged at positions adjacent to both ends of the first track (112).

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