A carriage centering conveying system and its usage method

Abstract

This application relates to the technical field of carriage conveying, and particularly relates to a carriage centering conveying system and a method for using the same. The carriage centering conveying system includes a roller path and a plate chain. The roller path includes a roller path body and a pitch-changing device. The pitch-changing device is arranged on the roller path body, and the axis of the roller path consistent with its conveying direction is the same as the axis of the pitch-changing device; the plate chain is arranged downstream of the roller path along the conveying direction of the roller path, and the conveying direction of the plate chain is the same as the conveying direction of the roller path. By providing a carriage centering conveying system and a method for using the same in the embodiments of this application, the problem in the related art that carriages with different longitudinal beam spacings cannot be centered on the roller path during the carriage conveying process is solved.

Description

Technical Field

[0001] The present application relates to the technical field of carriage transportation, and particularly relates to a carriage centering transportation system and a using method thereof. Background Art

[0002] Generally, a skid is used for carriage transportation. The skids have the same specifications, and only the skids need to be guided on the roller path. However, when the carriage is transported from the roller path to the plate chain, since the plate chain has legs for supporting the longitudinal beam, the legs need to be centered with the carriage longitudinal beam, which is difficult to control, especially for carriages with different longitudinal beam spacings. Moreover, when the carriage on the roller path is transferred to the plate chain, there is an interference problem with the legs of the plate chain, and the adjustment process is laborious. Summary of the Invention

[0003] Embodiments of the present application provide a carriage centering transportation system and a using method thereof to solve the problem in the related art that carriages with different longitudinal beam spacings cannot be centered on the roller path during the carriage transportation process.

[0004] In a first aspect, a carriage centering transportation system is provided, which includes:

[0005] A roller path, including a roller path body and a variable pitch device. The variable pitch device is arranged on the roller path body, and the axis of the roller path consistent with its transportation direction is the same as the axis of the variable pitch device;

[0006] A plate chain, which is arranged downstream of the roller path along the transportation direction of the roller path, and the transportation direction of the plate chain is the same as that of the roller path.

[0007] In some embodiments, the roller path includes a fixed roller path, and the width of the fixed roller path is equal to the minimum width of the variable pitch device.

[0008] In some embodiments, the variable pitch device includes:

[0009] A cross bar, which is arranged on the roller path perpendicular to the transportation direction of the roller path;

[0010] A sliding seat, which slides on the cross bar;

[0011] A pushing component, which is connected to the sliding seat and is used to drive the sliding seat to move along the length direction of the cross bar.

[0012] In some embodiments, the variable pitch device further includes:

[0013] A centering frame, which is arranged perpendicular to the plane where the roller path is located. One end of the centering frame is connected to the midpoint of the cross bar, and the other end is connected to the pushing component;

[0014] A connecting rod, one end of which is connected to the pushing component and the other end is connected to the sliding seat. The pushing component pushes the sliding seat to move on the cross bar through the connecting rod, and one end of the connecting rod connected to the pushing component moves along the length direction of the centering frame.

[0015] In some embodiments, the sliding seat includes a first sliding seat and a second sliding seat, and the first sliding seat and the second sliding seat are respectively slidably arranged at both ends of the cross bar along the length direction of the cross bar;

[0016] A slideway is arranged on the centering frame;

[0017] The connecting rod includes a first connecting rod connected to the first sliding seat and a second connecting rod connected to the second sliding seat. The first connecting rod and the second connecting rod are rotatably connected to the sliding disc through a pin shaft. The pushing component is connected to the sliding disc and is used to drive the sliding disc to slide in the slideway, so that the first sliding seat and the second sliding seat move towards each other or away from each other.

[0018] In some embodiments, a guide wheel is arranged at one end of the sliding seat far from the pushing component.

[0019] In some embodiments, it further includes a plurality of detection components, which are arranged on the roller path. The plurality of detection components are arranged on the roller path at intervals from one end of the roller path close to the plate chain.

[0020] In some embodiments, the plate chain includes a plate chain frame, a plate chain body and plate chain legs. The plate chain body makes a conveying movement on the plate chain frame, and the plate chain legs are arranged on the plate chain body at intervals along the conveying direction of the plate chain body.

[0021] In some embodiments, a travel switch is fixedly arranged on the plate chain body. The travel switch is located on the moving path of the plate chain leg, and there is a pressing part on the plate chain leg for pressing the travel switch.

[0022] In a second aspect, a method for using a carriage centering and conveying system is provided, which includes the following steps:

[0023] Place the carriage on the roller path;

[0024] Control the variable pitch device to adjust the distance between the roller path bodies to be consistent with the width of the carriage;

[0025] Transfer the carriage from the roller path to the plate chain.

[0026] The beneficial effects brought by the technical solution provided by this application include:

[0027] The embodiment of the present application provides a carriage centering conveying system and a method for using the same. Since a variable pitch device is provided on the roller path, the variable pitch device can be adjusted according to the longitudinal beam spacing of the carriage to center the carriage, and the axis of the roller path is consistent with the axis of the variable pitch device. After the variable pitch device is adjusted to be consistent with the width of the carriage longitudinal beam, its axis is still consistent with the axis of the roller path, that is, the centering action is completed, and then the carriage is conveyed to a plate chain that is consistent with the conveying direction of the roller path to complete the conveying. Therefore, it can solve the problem in the related art that carriages with different longitudinal beam spacings cannot be centered on the roller path during the carriage conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic plan view of the carriage centering conveying system provided by the embodiment of the present application;

[0030] Figure 2 It is a schematic structural view of the variable pitch device provided by the embodiment of the present application;

[0031] Figure 3 It is an elevation view of the carriage centering conveying system provided by the embodiment of the present application in the first state;

[0032] Figure 4 It is an elevation view of the carriage centering conveying system provided by the embodiment of the present application in the second state;

[0033] Figure 5 It is a side view of the carriage centering conveying system provided by the embodiment of the present application in the second state.

[0034] In the figure: 1. Carriage; 11. Carriage longitudinal beam; 2. Roller path; 21. Roller path body; 22. Detection component; 221. First detection switch; 222. Second detection switch; 223. Third detection switch; 23. Fixed roller path; 3. Plate chain; 31. Plate chain leg; 311. Pressing member; 32. Plate chain body; 33. Plate chain frame; 34. Travel switch; 4. Variable pitch device; 41. Cross bar; 42. Centering frame; 43. Sliding seat; 431. First sliding seat; 432. Second sliding seat; 44. Pushing component; 45. Link; 451. First link; 452. Second link; 46. Slideway; 47. Sliding disk; 48. Fixed part; 49. Guide wheel; 5. Pin shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0036] The embodiment of this application provides a carriage centering conveying system, which can solve the problem in the related art that carriages with different longitudinal beam spacings cannot be centered on the roller path during the carriage conveying process.

[0037] See Figures 1 to 5 As shown, the embodiment of this application provides a carriage centering conveying system, which includes a roller path 2 and a plate chain 3, and the conveying directions of the roller path 2 and the plate chain 3 are the same.

[0038] Specifically, the roller path 2 includes a roller path body 21 and a variable pitch device 4. The variable pitch device 4 is arranged on the roller path body 21, and the axis of the roller path 2 consistent with its conveying direction is the same as the axis of the variable pitch device 4. That is, during the variable pitch process of the variable pitch device 4, its axis is always consistent with the axis of the roller path 2, enabling the carriage to be effectively centered.

[0039] Further, the plate chain 3 is arranged downstream of the roller path 2 along the conveying direction of the roller path 2, and the conveying direction of the plate chain 3 is the same as that of the roller path 2. After the roller path 2 completes the variable pitch and centering of the carriage 1 through the variable pitch device 4, the carriage is transferred onto the plate chain 3.

[0040] The embodiment of this application provides a carriage centering conveying system and its usage method. Since the variable pitch device 4 is arranged on the roller path, the variable pitch device 4 can be adjusted according to the longitudinal beam spacing of the carriage 1 to center the carriage 1, and the axis of the roller path 2 is the same as the axis of the variable pitch device 4. After the variable pitch device 4 is adjusted to be the same width as the width of the carriage longitudinal beam 11, its axis is still the same as the axis of the roller path 2, that is, the centering action is completed, and then the carriage 1 is conveyed onto the plate chain 3 with the same conveying direction as the roller path 2 to complete the conveying. Therefore, it can solve the problem in the related art that carriages with different longitudinal beam spacings cannot be centered on the roller path during the carriage conveying process.

[0041] In some alternative embodiments, see Figure 1 As shown, the roller path 2 includes a fixed roller path 23, and the width of the fixed roller path 23 is equal to the minimum width of the variable pitch device 4. On the one hand, it provides support for the carriage 1 during the transmission process, and on the other hand, it provides fixed guidance for the carriage longitudinal beam 11 to meet the passage of the carriage 1 with the minimum longitudinal beam spacing.

[0042] In some alternative embodiments, see Figure 2As shown, the pitch-changing device 4 includes a cross bar 41, a sliding seat 43 and a pushing assembly 44. Specifically, in combination with Figure 1 As shown, the cross bar 41 is disposed on the roller path 2 perpendicular to the conveying direction of the roller path 2, that is, parallel to the setting direction of the above-mentioned fixed roller path 23; the sliding seat 43 is disposed on the cross bar 41, and the pushing assembly 44 is connected to the sliding seat 43 and is used to drive the sliding seat 43 to move along the length direction of the cross bar 41. Optionally, the pushing assembly 44 uses a cylinder or an oil cylinder.

[0043] The sliding seat 43 slides on the cross bar 41 under the push of the pushing assembly 44. Optionally, there are two sliding seats 43, and as Figure 2 shown, they are respectively arranged at both ends of the length direction of the cross bar 41 to adapt to different spacings of the carriage 1 and realize the support and centering of the carriage longitudinal beam 11.

[0044] Preferably, in combination with Figure 2 As shown, the pitch-changing device 4 further includes a centering frame 42 and a connecting rod 45. Specifically, the centering frame 42 is disposed perpendicular to the plane where the roller path 2 is located, and one end of the centering frame 42 is connected to the midpoint of the cross bar 41, and the other end is connected to the pushing assembly 44.

[0045] Specifically, the cross bar 41 is fixed on the roller path body 21 through a fixing member 48. One end of the centering frame 42 is fixed on the ground, and the other end is fixed on the cross bar 41. As a support for the cross bar 41, the end of the centering frame 42 connected to the ground is simultaneously connected to the pushing assembly 44, serving as the force application point of the pitch-changing device 4. Optionally, the fixing member 48 uses a fixing clamp.

[0046] Furthermore, one end of the connecting rod 45 is connected to the pushing assembly 44, and the other end is connected to the sliding seat 43. The pushing assembly 44 pushes the sliding seat 43 to move on the cross bar 41 through the connecting rod 45, and the end of the connecting rod connected to the pushing assembly 44 moves along the length direction of the centering frame 42.

[0047] Furthermore, in combination with Figure 2 As shown, the sliding seat 43 includes a first sliding seat 431 and a second sliding seat 432. The first sliding seat 431 and the second sliding seat 432 are respectively slidably arranged at both ends of the cross bar 41 along the length direction of the cross bar 41, and a slideway 46 is provided on the centering frame 42;

[0048] The connecting rod 45 includes a first connecting rod 451 connected to the first sliding seat 431 and a second connecting rod 452 connected to the second sliding seat 432. The first connecting rod 451 and the second connecting rod 452 are rotatably connected to a sliding disk 47 through a pin shaft 5. The pushing assembly 44 is connected to the sliding disk 47 and is used to drive the sliding disk 47 to slide in the slideway 46, so that the first sliding seat 431 and the second sliding seat 432 move towards or away from each other.

[0049] It can be referred toFigure 2 As shown, the first link 451 and the second link 452 have the same specifications and together with the cross bar 41 form an isosceles triangle structure. When the pushing assembly 44 drives the sliding disk 47 to slide towards the cross bar 41, since the first link 451 and the second link 452 are jointly rotatably connected to the sliding disk 47, when the sliding disk 47 slides in the slideway 46, the first link 451 and the second link 452 are driven, causing the first sliding seat 431 and the second sliding seat 432 connected to the links to move away from each other; and since the centering frame 42 is located at the midpoint of the cross bar 41, during the pitch-changing process of the pitch-changing device 4, the carriage longitudinal beam 11 is always in a symmetric position with respect to the center line of the roller bed.

[0050] Conversely, when the pushing assembly 44 drives the sliding disk 47 to move away from the cross bar 41 in the slideway 46, the first sliding seat 431 and the second sliding seat 432 move towards each other to adapt to a carriage with a smaller spacing.

[0051] Optionally, as shown in Figure 2 a guide wheel 49 is provided at the end of the sliding seat 43 away from the pushing assembly 44, and the guide wheel 49 is used to support the carriage longitudinal beam 11.

[0052] In some alternative embodiments, as shown in Figure 1 , Figure 3 and Figure 4 the carriage centering conveying system further includes a plurality of detection assemblies 22. Specifically, the detection assemblies 22 are arranged on the roller path 2. As shown in Figure 1 the detection assembly 22 includes a first detection switch 221, a second detection switch 222 and a third detection switch 223, and the first detection switch 221, the second detection switch 222 and the third detection switch 223 are sequentially arranged on the roller path 2 from the end of the roller path 2 close to the plate chain 3 to the end away from the plate chain 3.

[0053] Specifically, as shown in Figure 1 the first detection switch 221 is arranged at the end of the roller path 2 close to the plate chain 3 for detecting whether the carriage 1 reaches the position of the first detection switch 221.

[0054] Furthermore, there are a plurality of pitch-changing devices 4, which are arranged on the roller path body 21 according to the setting positions of the detection assemblies 22; the first detection switch 221, the second detection switch 222 and the third detection switch 223 are sequentially arranged to detect whether the carriage 1 arrives and judge the length of the carriage 1:

[0055] If the first detection switch 221 and the second detection switch 222 detect the carriage 1 at the same time, it is determined to be a short carriage, and the distance change devices 4 corresponding to the first detection switch 221 and the second detection switch 222 are activated at the same time to correct and center the carriage 1; if the first detection switch 221, the second detection switch 222 and the third detection switch 223 detect the carriage 1 at the same time, it is determined to be a long carriage, and the distance change devices 4 corresponding to the first detection switch 221, the second detection switch 222 and the third detection switch 223 are activated at the same time to correct and center the carriage. At the same time, the first detection switch 221 is also used to detect whether the carriage 1 on the roller conveyor 2 is transported to the right position. After the carriage 1 is corrected and centered, it is transported to the plate chain 3, and the carriage longitudinal beam 11 falls on the plate chain leg 31.

[0056] In some optional embodiments, see Figure 1 , Figure 3 and Figure 4 As shown, the plate chain 3 includes a plate chain frame 33, a plate chain body 32 and a plate chain leg 31. The plate chain body 32 performs transmission movement on the plate chain frame 33, and the plate chain legs 31 are arranged on the plate chain body 32 at intervals along the conveying direction of the plate chain body 32.

[0057] Specifically, a plurality of plate chain legs 31 are provided on the plate chain body 32 , and the plurality of plate chain legs 31 are arranged in sequence and equidistantly along the conveying direction of the plate chain 3 , for supporting the longitudinal beam 11 of the carriage.

[0058] Optionally, combined Figure 1 As shown, a travel switch 34 is fixedly provided on the plate chain body 32 , and the travel switch 34 is located on the moving path of the plate chain leg 31 . A holding piece 311 for holding the travel switch 34 is provided on the plate chain leg 31 .

[0059] Specifically, combined Figure 5 As shown, the plate chain leg 31 has a pressing piece 311 . During the movement of the plate chain leg 31 , the pressing piece 311 will press the travel switch 34 , causing the car longitudinal beam 11 to fall on the plate chain legs 31 on both sides of the plate chain body 32 .

[0060] Take a conveying process as an example. When carriage 1 is in place on roller conveyor 2, that is, the first detection switch 221 detects that there is a carriage, roller conveyor 2 stops conveying. At this time, the plate chain leg 31 is at the front end of the travel switch 34. The plate chain leg 31 moves continuously with the operation of the plate chain body 32. When the plate chain leg 31 presses the travel switch 34, the PLC sends a signal to the roller conveyor 2 to request the carriage. The roller conveyor 2 starts conveying and conveys carriage 1 to the plate chain 3. Figures 3 to 4 As shown;

[0061] The speed of the plate chain 3 is matched with the speed of the roller table 2 by frequency conversion regulation. When the longitudinal beam 11 of the carriage reaches the plate chain 3, the front end of the longitudinal beam 11 of the carriage is just as Figure 4It is shown to fall on the plate chain support leg 31. Since it is necessary for the plate chain support leg 31 to press the travel switch 34 to trigger the conveying action of the roller path 2 to the plate chain 3, it can be ensured that there is at least a distance between two plate chain support legs 31 among the carriages 1 on the plate chain 3, ensuring safety and convenient operation.

[0062] When the carriage 1 completely leaves the roller path 2, the variable pitch device 4 retracts simultaneously and waits for the next carriage 1 to enter the roller path 2. If there is no vehicle on the roller path 2 or the carriage 1 has not reached the first detection switch 221 after the plate chain support leg 31 presses the travel switch 34, the plate chain 3 stops waiting.

[0063] The embodiment of the present application also provides a usage method of a carriage centering and conveying system, which includes the following steps:

[0064] Place the carriage 1 on the roller path 2;

[0065] Control the variable pitch device 4 to adjust the distance between the roller path bodies 21 to be consistent with the width of the carriage 1;

[0066] Transfer the carriage 1 from the roller path 2 to the plate chain 3.

[0067] Specifically, controlling the variable pitch device 4 to adjust the distance between the roller path bodies 21 to be consistent with the width of the carriage 1 specifically includes using the pushing component 44 to drive the sliding seat 43 to move on the cross bar 41 through the connecting rod, and then controlling the distance between the first sliding seat 431 and the second sliding seat 432 to adapt to the carriage longitudinal beams 11 with different distances.

[0068] Optionally, plate chain support legs 31 are arranged on the plate chain 3, and a travel switch 34 is fixedly arranged on the plate chain 3. There is a transfer gap between the roller path 2 and the plate chain 3, and the transfer gap is not greater than one-half of the shortest carriage. Transferring the carriage 1 from the roller path 2 to the plate chain 3 includes the following steps:

[0069] The roller path 2 conveys the carriage 1. When the carriage 1 runs to the first detection switch 221, the roller path 2 stops conveying the carriage 1;

[0070] The plate chain support leg 31 rotates to connect with the travel switch 34 and sends a car request signal to the roller path 2;

[0071] The roller path 2 starts and conveys the carriage 1 to the plate chain 3, and the carriage longitudinal beam 11 falls on the plate chain support leg 31.

[0072] A carriage centering conveying system and its usage method provided by an embodiment of the present application can automatically correct and center carriages 1 with different longitudinal beam spacings during the conveying process of the carriage 1, automatically control the conveying and docking of the roller path 2 and the plate chain 3, ensure that the front end of the carriage longitudinal beam 11 falls on the plate chain leg 31, solve the problem of interference with the plate chain leg 31 when the carriage 1 with different longitudinal beam spacings is transferred from the roller path 2 to the plate chain 3, and ensure the spacing distribution of the carriage 1 on the plate chain 3, facilitating the operation.

[0073] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0074] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0075] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for using a carriage centering conveying system, characterized in that the carriage centering conveying system includes: a roller path (2), including a roller path body (21) and a pitch-changing device (4), the pitch-changing device (4) is arranged on the roller path body (21), and the axis of the roller path (2) consistent with its conveying direction is the same as the axis of the pitch-changing device (4); a plate chain (3), which is arranged downstream of the roller path (2) along the conveying direction of the roller path (2), and the conveying direction of the plate chain (3) is the same as the conveying direction of the roller path (2); the pitch-changing device (4) includes: a cross bar (41), which is arranged on the roller path (2) perpendicular to the conveying direction of the roller path (2); a sliding seat (43), which slides on the cross bar (41); a pushing component (44), which is connected to the sliding seat (43) and is used to drive the sliding seat (43) to move along the length direction of the cross bar (41); the pitch-changing device (4) further includes: a centering frame (42), which is arranged perpendicular to the plane where the roller path (2) is located, one end of the centering frame (42) is connected to the midpoint of the cross bar (41), and the other end is connected to the pushing component (44); a connecting rod (45), one end of which is connected to the pushing component (44), and the other end is connected to the sliding seat (43), the pushing component (44) pushes the sliding seat (43) to move on the cross bar (41) through the connecting rod (45), and the end of the connecting rod connected to the pushing component (44) moves along the length direction of the centering frame (42); it further includes a plurality of detection components (22), which are arranged on the roller path (2), and the plurality of detection components (22) are sequentially arranged at intervals on the roller path (2) from the end of the roller path (2) close to the plate chain (3) to the end away from the plate chain (3); the plurality of detection components (22) include a first detection switch (221), and the first detection switch (221) is arranged at the end of the roller path (2) close to the plate chain (3) for detecting whether the carriage (1) reaches the position of the first detection switch (221) and for detecting whether the carriage (1) on the roller path (2) is conveyed in place; the plate chain (3) includes a plate chain frame (33), a plate chain body (32) and plate chain legs (31), the plate chain body (32) makes a transmission movement on the plate chain frame (33), and the plate chain legs (31) are arranged at intervals on the plate chain body (32) along the conveying direction of the plate chain body (32); a travel switch (34) is fixedly arranged on the plate chain body (32), the travel switch (34) is located on the moving path of the plate chain leg (31), and there is a pressing member (311) on the plate chain leg (31) for pressing the travel switch (34); the method for using the carriage centering conveying system includes the following steps: Place the carriage (1) on the roller path (2); Control the pitch-changing device (4) to adjust the distance between the roller path bodies (21) to be the same as the width of the carriage; Transfer the carriage (1) from the roller path (2) to the plate chain (3), which specifically includes: The roller path (2) conveys the carriage (1). When the carriage (1) runs to the first detection switch (221), the carriage (1) is conveyed in place on the roller path (2), and the roller path (2) stops conveying the carriage (1); at this time, the chain plate support leg (31) is at the front end of the travel switch (34), and the chain plate support leg (31) moves continuously as the chain plate body (32) runs; The chain plate support leg (31) rotates to connect with the travel switch (34), and sends a car request signal to the roller path (2); The roller path (2) starts and conveys the carriage (1) towards the chain plate (3); the speed of the chain plate (3) is matched with the speed of the roller path (2) through frequency conversion adjustment. When the carriage longitudinal beam (11) reaches the chain plate (3), the front end of the carriage longitudinal beam (11) just lands on the chain plate support leg (31).

2. The method for using the carriage centering and conveying system according to claim 1, characterized in that: The roller path (2) includes a fixed roller path (23), and the width of the fixed roller path (23) is equal to the minimum width of the variable pitch device (4).

3. The method for using the carriage centering and conveying system according to claim 1, characterized in that: The sliding seat (43) includes a first sliding seat (431) and a second sliding seat (432), and the first sliding seat (431) and the second sliding seat (432) are respectively slidably arranged at both ends of the cross bar (41) along the length direction of the cross bar (41); A slide way (46) is arranged on the centering frame (42); The connecting rod (45) includes a first connecting rod (451) connected to the first sliding seat (431) and a second connecting rod (452) connected to the second sliding seat (432). The first connecting rod (451) and the second connecting rod (452) are rotationally connected to the sliding disc (47) through a pin shaft (5). The pushing assembly (44) is connected to the sliding disc (47) and is used to drive the sliding disc (47) to slide in the slide way (46), so that the first sliding seat (431) and the second sliding seat (432) move towards each other or away from each other.

4. The method for using the carriage centering and conveying system according to claim 1, characterized in that: A guide wheel (49) is arranged at one end of the sliding seat (43) away from the pushing assembly (44).

Images