Automatic stringing and feeding machine

Abstract

The invention relates to the technical field of chain manufacturing, and discloses an automatic sheet stringing feeding machine which comprises a vibration disc, a linear vibration feeder and a sheet stringing mechanism which are sequentially arranged from left to right, and a chain sheet hole pitch detection mechanism is arranged on the linear vibration feeder; a detection area is arranged at the end, close to a vibration disc, of a horizontal conveying belt of the linear vibration feeder. The chain piece hole pitch detection mechanism comprises a shell, a stopping structure and a detection structure. The upper surface of the discharge hole of the vibration disc is flush with the upper surface of the detection area; the stopping structure comprises a groove formed in the end, away from the vibration disc, of the detection area, a guide cutter is movably installed in the groove, the horizontal conveying belt controls the guide cutter to ascend and descend through a telescopic rod, and the cross section of the top of the guide cutter is triangular. According to the invention, the to-be-detected chain sheet is static in the detection area through the stop structure, and the straight lines where the maximum length and width of the to-be-detected chain sheet are located are respectively overlapped with the length and width of the detection area, so that the detection structure can conveniently carry out hole pitch photographing detection or physical insertion detection in the later period.

Description

Technical Field

[0001] This invention relates to the field of chain manufacturing technology, and in particular to an automatic chain feeding machine. Background Technology

[0002] In the field of mechanical manufacturing, in order to improve production efficiency, mechanical automation equipment is generally used for production operations. Mechanical automation equipment not only improves production efficiency, but also reduces labor intensity. For example, in mechanical equipment for assembling chains, the chain links are conveyed in batches to meet the assembly of the chain shaft. At this time, the chain links need to be arranged one by one in advance so that the chain assembly equipment can be loaded. In actual production, manual arrangement or automatic chain stringing machine is generally used for chain arrangement.

[0003] For example, the invention patent with authorization announcement number CN103978149B describes a chain link stringing machine that includes a worktable with at least one link holder on the worktable. The link holder has a guide groove extending from top to bottom and having at least one arc-shaped curved section. The upper end of the guide groove has a vertically upward-facing inlet and the lower end has a link outlet. Two linking rods are provided in the guide groove for sequentially stringing the chain links located in the guide groove together. The linking rods extend along the guide groove and have arc-shaped curved sections corresponding to the arc-shaped curved sections. When the chain links are sleeved on the linking rods, the linking rods are suspended in the guide groove.

[0004] The patent still has the following drawbacks:

[0005] This patent filters the width of the chain segments by setting a feeding slot on the feeding guide rail with a width equal to or slightly greater than the width of the chain segments. Then, it filters the thickness of the chain segments by leaving a gap between the output seat and the conveyor belt, which is equal to or greater than the thickness of a single chain segment and less than the total overlapping thickness of two chain segments. However, this method cannot filter the hole spacing of the chain segments. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic wafer feeding machine to solve the technical problems mentioned in the background art.

[0007] This invention provides an automatic chain feeder, comprising a vibratory feeder, a linear vibratory feeder, and a chain feeding mechanism arranged sequentially from left to right. The linear vibratory feeder conveys the chain links to be tested, which are neatly arranged on the vibratory feeder, to the inlet of the chain feeding mechanism. The outlet of the vibratory feeder is equipped with a height-limiting screening structure. The linear vibratory feeder is equipped with a chain link hole spacing detection mechanism. A detection area is provided at one end of the horizontal conveyor belt of the linear vibratory feeder near the vibratory feeder. The length and width of the detection area are the same as the maximum length and width of the standard chain link component. The chain link hole spacing detection mechanism includes:

[0008] The housing is fixed to the horizontal conveyor belt;

[0009] The stop structure is used to keep the chain piece to be tested stationary in the detection area and to make the straight line containing the right edge of the chain piece to be tested coincide with the right edge of the detection area.

[0010] The detection structure is fixed directly above the detection area; the upper surface of the discharge port of the vibratory feeder is flush with the upper surface of the detection area; the stopping structure includes a slot located at the end of the detection area away from the vibratory feeder, in which a guide cutter is movably installed, and the horizontal conveyor belt controls the raising and lowering of the guide cutter through a telescopic rod, the top cross-section of the guide cutter being triangular.

[0011] Furthermore, the detection structure includes a detection rod 1 and a detection rod 2, which are located at the top of the housing and can move vertically back and forth. The minimum hole distance between the detection rod 1 and the detection rod 2 is the minimum hole distance of the chain link standard part. The detection rod 2 is equipped with a distance detection device. When the detection rod 1 is inserted into a hole of the chain link in the detection area, the distance detection device is used to record the distance that the detection rod 2 can move downward.

[0012] Furthermore, the chain link hole spacing detection mechanism also includes a mounting plate fixed directly above the detection area and parallel to the upper surface of the detection area. The mounting plate is installed at the top inside the housing. Below the mounting plate, a setting plate that can move vertically back and forth is installed via a drive component. The tops of detection rod one and detection rod two are both fixed to the setting plate.

[0013] The detection rod 2 has a through groove, and the two ends of the through groove pass through the center of the two end faces of the detection rod 2. A movable rod is slidably embedded in the through groove. The plate has a slot at the position corresponding to the top of the movable rod. An elastic element is installed in the slot. The two ends of the elastic element are connected to the bottom of the slot and the top of the movable rod, respectively.

[0014] Furthermore, the bottom of the mounting plate is provided with multiple guide rods, and the mounting plate is provided with sliding holes for nesting the guide rods.

[0015] Furthermore, the driving component is a single-cylinder cylinder, the base of which is mounted on a mounting plate, and the output shaft of which is mounted on a setting plate.

[0016] Furthermore, the bottom end of the movable rod extends beyond the bottom end of the second detection rod by a length equal to the thickness of the standard chain link.

[0017] Furthermore, the bottom end of the movable rod is curved.

[0018] Furthermore, a detection ring is slidably sleeved at the bottom end of the second detection rod, the bottom end face of the detection ring is flush with the bottom end face of the second detection rod, and the detection ring is connected to the setting plate through a reset component;

[0019] A detection platform is provided on either side of the detection ring, and an infrared ranging sensor is provided on the detection platform to measure the distance between the detection platform and the setting plate.

[0020] Furthermore, the distance detection device is an infrared ranging sensor II used to measure the distance between the mounting plate and the setting plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] (1) The present invention uses a stop structure to keep the chain piece to be tested stationary in the detection area and make the straight line of the right edge of the chain piece to be tested coincide with the right edge of the detection area, which facilitates the subsequent detection structure to take pictures of the hole spacing or perform physical insertion detection; when the detection structure takes pictures, the setting of this detection area can ensure to a certain extent that the picture angle and height of the chain piece to be tested are the same as the picture angle and height of the standard chain piece.

[0023] (2) The detection structure of the present invention performs insertion detection, which can not only measure the hole spacing of the chain links, but also detect the thickness of the chain links, thus overcoming the limitations of the prior art in setting thickness restrictions that cannot screen chain links with a thickness less than the standard part. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0026] Figure 2 This is a cross-sectional view of the detection area in Embodiment 1 of the present invention;

[0027] Figure 3 This is a schematic diagram of the guide cutter separating two chain segments to be tested in Embodiment 1 of the present invention;

[0028] Figure 4 This is a perspective view of the detection structure of Embodiment 2 of the present invention;

[0029] Figure 5 This is a side view of the detection structure in Embodiment 2 of the present invention;

[0030] Figure 6 This is a schematic diagram of the detection structure before detection in Embodiment 2 of the present invention;

[0031] Figure 7This is a schematic diagram of the detection structure after detection according to Embodiment 2 of the present invention.

[0032] Figure label:

[0033] 1. Base; 2. Vibratory feeder; 21. Pulse electromagnet; 22. Height-limiting screening structure; 23. Hopper; 3. Linear vibratory feeder; 31. Horizontal conveyor belt; 4. Guide cutter; 5. Photo capture device; 6. Chain to be tested; 71. Mounting plate; 72. Guide rod; 73. Single cylinder; 74. Infrared range sensor II; 75. Infrared range sensor I; 76. Detection rod I; 77. Movable rod; 78. Detection rod II; 79. Reset component; 710. Detection ring; 711. Detection platform; 712. Empty slot; 713. Elastic component; 714. Setting plate; 8. Slot; 9. Telescopic rod; 10. Housing. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0036] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Example 1:

[0040] like Figures 1-3 As shown, the automatic wafer loading machine of this embodiment includes sequential (in this embodiment, the sequence is from...) Figure 1 The following components are arranged in a left-to-right direction: a vibratory feeder 2, a linear vibratory feeder 3, and a chain conveyor mechanism. The chain conveyor mechanism is prior art and is not shown in the figure; please refer to the prior art section for details. The linear vibratory feeder 3 transports the chain segments 6, arranged neatly by the vibratory feeder 2, to the inlet of the chain conveyor mechanism. The outlet of the vibratory feeder 2 is equipped with a height-limiting screening structure 22. In this embodiment, the height-limiting screening structure 22 is a horizontal bar with an inclined spiral track. The gap between the bottom surface of the horizontal bar and the horizontal section is exactly equal to the thickness of the standard chain segment. The linear vibratory feeder 3 is equipped with a chain segment hole spacing detection mechanism. The horizontal conveyor belt 31 of the linear vibratory feeder 3... A detection area is provided at one end (i.e., the left end) near the vibratory feeder 2. The length and width of the detection area are the same as the maximum length and width of the standard chain link. The chain link hole spacing detection mechanism includes: a housing 10, fixed on the horizontal conveyor belt 31; a stopping structure, used to keep the chain link 6 to be tested stationary in the detection area and to make the straight line of the right edge of the chain link 6 to be tested coincide with the right edge of the detection area; a detection structure, fixed directly above the detection area; the upper surface of the discharge port of the vibratory feeder 2 is flush with the upper surface of the detection area; the stopping structure includes a slot 8 located at the end of the detection area away from the vibratory feeder 2, and a guide cutter 4 is movably installed in the slot 8 through a telescopic rod 9. The top cross-section of the guide cutter 4 is triangular.

[0041] The detection structure in this embodiment includes a photographic device 5 fixed to the top of the housing 10.

[0042] The vibratory feeder 2 in this embodiment is a vibratory feeder in the prior art. The vibratory feeder 2 will be briefly described below. The vibratory feeder 2 is an electromagnetic vibratory feeder. The pulse electromagnet 21 of the vibratory feeder 2 can make the hopper 23 vibrate in the vertical direction. Then, the inclined spring plate drives the hopper 23 to make torsional vibration around its vertical axis. The parts inside the hopper 23 (in this embodiment, the parts inside the hopper 23 are the chain pieces 6 to be tested) rise along the spiral track due to this vibration. Finally, they are neatly arranged and discharged in the discharge section of the vibratory feeder 2, which is basically horizontal. In the discharge section, the height limiting screening structure 22 (i.e., the crossbar) blocks the chain pieces 6 to be tested that are thicker than the standard chain pieces from passing through.

[0043] The working principle of this embodiment is as follows:

[0044] After being screened by the height-limiting screening structure 22 of the vibratory feeder 2, the chain segments 6 to be tested that are neatly discharged from the vibratory feeder 2 are all of thickness equal to or smaller than the standard chain segments. When two chain segments 6 to be tested enter the linear vibratory feeder 3, the gap between the two chain segments 6 to be tested is not aligned with the right edge of the testing area (reference). Figure 3 At this time, the guide cutter 4 is driven to rise by the telescopic rod 9. When the guide cutter 4 rises, the top of the guide cutter 4 lifts up the two chain pieces 6 to be tested. (Refer to...) Figure 3 The positions of the chain segments 6 to be tested are indicated by dashed lines. Then, the two chain segments 6 slide down under the influence of gravity or the vibration of the linear vibrating feeder 3, causing the right end of the chain segment 6 to be tested, located to the left of the guide cutter 4, to align with the left edge of the guide cutter 4. The left edge of the guide cutter 4 is precisely the right edge of the detection area. The detection area is... Figure 2 The position of the left edge of the guide cutter 4 to the left edge of the horizontal conveyor belt 31.

[0045] Therefore, the chain piece 6 to be tested, located to the left of the guide cutter 4, is exactly in the testing area. At this time, the photo taking device 5 located above the testing area takes a picture. Then, by comparing the photo of the chain piece 6 to be tested with the photo of the standard chain piece, it can be determined whether the hole spacing of the chain piece 6 to be tested is standard.

[0046] The photographic device 5 can be a general camera. Due to various factors such as lens and shooting angle, in order to determine whether the hole spacing meets the standard by comparing the photographs, it is necessary to ensure that the shooting angle is basically the same each time and that the distance between the lens and the photographed object is equal. Therefore, this embodiment stops the chain piece 6 to be tested in the detection area (equivalent to a stable photographing location) by setting the intercepting structure, thereby ensuring that the detection photograph of the chain piece 6 to be tested is at the same shooting angle and shooting distance as the standard chain piece, which facilitates the detection of the hole spacing of the chain piece 6 to be tested.

[0047] Example 2:

[0048] The difference from Example 1 is that:

[0049] like Figures 4-7 As shown, the detection structure of this embodiment includes a mounting plate 71 fixed to the top of the housing 10. Two guide rods 72 are symmetrically fixed on the lower surface of the mounting plate 71 (generally fixed by screws, etc.). A setting plate 714 is arranged parallel to the mounting plate 71 below it. The setting plate 714 is nested in the two guide rods 72 through two sliding holes to ensure the vertical reciprocating sliding of the setting plate 714. A driving component is also provided between the mounting plate 71 and the setting plate 714. In this embodiment, the driving component is a single-cylinder cylinder 73 (in other embodiments, the driving component can also be a telescopic rod, linear motor, etc.). The base 1 of the single-cylinder cylinder 73 is installed at the bottom center of the mounting plate 71, and the output shaft of the single-cylinder cylinder 73 is fixed at the top center of the setting plate 714 (generally fixed by screws, etc.). The bottom of plate 714 is symmetrically fixed with detection rod 1 76 and detection rod 2 78, and the minimum distance between detection rod 1 76 and detection rod 2 78 is equal to the minimum hole spacing of the chain link standard part. Detection rod 2 78 is provided with a through groove, and the two ends of the through groove pass through the center of the two end faces of detection rod 2 78 respectively. Movable rod 77 is slidably embedded in the through groove. The plate is provided with a slot 712 at the position corresponding to the top of movable rod 77. Elastic element 713 is provided in slot 712. The two ends of elastic element 713 are connected to the bottom of the slot and the top of movable rod 77 respectively. The bottom end of movable rod 77 exceeds the bottom end of detection rod 2 78 by a length equal to the thickness of chain link standard part. The bottom end of movable rod 77 is arc-shaped to facilitate the insertion of movable rod 77 into the right hole of chain link 6 to be tested.

[0050] like Figure 5 As shown, the bottom of the movable rod 77 is enlarged. This enlargement is used to limit the sliding distance of the movable rod 77 to the thickness of a chain link standard piece.

[0051] The working principle of this detection structure is as follows:

[0052] When the chain segment 6 to be inspected enters the inspection area and is stopped by the guide cutter 4, the chain segment 6 to be inspected is just aligned with the inspection area (reference). Figure 5 and Figure 6 At this point, the setting plate 714 is first driven to slide downward by the single cylinder 73. Since the bottom end of the movable rod 77 exceeds the bottom end of the detection rod 78, the movable rod 77 first enters the right hole of the chain piece 6 to be tested. The setting plate 714 continues to move downward until the bottom end of the movable rod 77 is flush with the lower surface of the chain piece 6 to be tested.

[0053] At this point, the chain segment 6 to be tested may have the following characteristics:

[0054] 1. The thickness is less than the standard part thickness and the hole spacing is not standard (those with a thickness greater than the standard part are excluded by vibratory feeder 2).

[0055] 2. The thickness is less than that of the standard part and the hole spacing is standard;

[0056] 3. The thickness is equal to that of the standard part and the hole spacing is standard.

[0057] By providing a distance detection device on the setting plate 714, the distance detection device in this embodiment is an infrared ranging sensor 74 used to measure the distance between the mounting plate 71 and the setting plate 714.

[0058] Let a be the distance from the upper surface of the infrared ranging sensor 74 to the mounting plate measured by the infrared ranging sensor 74 during the initial detection of the present invention. Let a' be the distance from the upper surface of the infrared ranging sensor 74 to the mounting plate measured by the infrared ranging sensor 74 during the initial detection of the present invention. Let x be the distance from the bottom end of the movable rod 77 to the horizontal conveyor belt 31. Let y be the thickness of a standard chain link.

[0059] When the chain link 6 to be tested is in case 3, the setting plate 714 continues to move downward, and the movable rod 77 compresses the elastic element 713, thus keeping the position of the movable rod 77 stationary. Since the hole spacing of the chain link 6 to be tested is standard, the second detection rod 78 can enter the left hole. At this time, the second detection rod 78 can be displaced by the thickness of a standard chain link component. At this time, a' = a + x + y.

[0060] When the chain link 6 to be tested is in case 1, the setting plate 714 continues to move downward, the movable rod 77 compresses the elastic element 713, so the position of the movable rod 77 remains stationary. Since the thickness of the chain link 6 to be tested is less than the thickness of the standard part, the detection rod 78 continues to move downward until the detection rod 78 is pressed against the upper surface of the chain link 6 to be tested (because the hole spacing of the chain link 6 to be tested is not standard), the detection rod 78 cannot enter the left hole; finally, the displacement length of the detection rod 78 is less than the thickness of the standard part, so at this time, a' < a + x + y.

[0061] When the chain piece 6 to be tested is case 2, since the second detection rod 78 can enter the left hole, the detection result is the same as that in case 1, and it is impossible to distinguish the chain piece with too small a thickness.

[0062] In order to inspect chain links with a thickness less than that of the standard parts, a detection ring 710 is slidably sleeved at the bottom end of the second detection rod 78. The bottom end face of the detection ring 710 is flush with the bottom end face of the second detection rod 78. The detection ring 710 is connected to the setting plate through a reset member 79. A detection platform 711 is provided on either side of the detection ring 710. An infrared ranging sensor 75 is provided on the detection platform 711 for measuring the distance between the detection platform 711 and the setting plate 714.

[0063] Assume that during the initial detection of the present invention, the infrared ranging sensor 75 measures a distance b from the center of its upper surface to the setting plate 714, and that at the end of the detection of the present invention, the infrared ranging sensor 75 measures a distance b' from the center of its upper surface to the setting plate 714.

[0064] In case 1, the second detection rod 78 cannot enter the left hole, so the detection ring 710 cannot slide along the second detection rod 78, therefore b'=b.

[0065] When considering case 2, the second detection rod 78 can enter the left hole, so the detection ring 710 can slide along the second detection rod 78, and the distance that the detection ring 710 slides up is exactly the thickness of the chain piece 6 to be tested, so b' > by.

[0066] When considering case 3, the second detection rod 78 can enter the left hole, so the detection ring 710 can slide along the second detection rod 78, and the distance that the detection ring 710 slides up is exactly the thickness of the chain piece 6 to be tested, so b'=by.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic sheet feeding machine, comprising a vibratory feeder (2), a linear vibratory feeder (3), and a sheet feeding mechanism arranged sequentially from left to right, wherein the linear vibratory feeder (3) is used to convey the sheet sheets (6) to be tested, which are arranged neatly by the vibratory feeder (2), to the inlet of the sheet feeding mechanism, and the outlet of the vibratory feeder (2) is provided with a height-limiting screening structure (22), characterized in that: The linear vibrating feeder (3) is equipped with a chain link hole spacing detection mechanism; the horizontal conveyor belt (31) of the linear vibrating feeder (3) has a detection area at one end near the vibrating plate (2), the length and width of the detection area are the same as the maximum length and width of the chain link standard parts, and the chain link hole spacing detection mechanism includes: The housing (10) is fixed to the horizontal conveyor belt (31); The stopping structure is used to keep the chain piece (6) to be tested stationary in the detection area and to make the straight line containing the right edge of the chain piece (6) to be tested coincide with the right edge of the detection area. The detection structure is fixed directly above the detection area; The upper surface of the discharge port of the vibratory feeder (2) is flush with the upper surface of the detection area; the stopping structure includes a slot (8) located at the end of the detection area away from the vibratory feeder (2), and a guide cutter (4) is movably installed in the slot (8). The horizontal conveyor belt (31) controls the lifting and lowering of the guide cutter (4) through the telescopic rod (9), and the top cross-section of the guide cutter (4) is triangular.

2. The automatic wafer feeding machine according to claim 1, characterized in that: The detection structure includes a detection rod 1 (76) and a detection rod 2 (78) disposed at the top of the housing (10) and capable of vertical reciprocating movement. The minimum hole spacing of the detection rod 1 (76) and the detection rod 2 (78) is the minimum hole spacing of the chain piece standard. The detection rod 2 (78) is provided with a distance detection device. When the detection rod 1 (76) is embedded into a hole of the chain piece (6) to be detected in the detection area, the distance detection device is used to record the distance that the detection rod 2 (78) can move downward.

3. An automatic wafer feeding machine according to claim 2, characterized in that: The chain link hole spacing detection mechanism also includes a mounting plate (71) fixed directly above the detection area and parallel to the upper surface of the detection area. The mounting plate (71) is installed at the top inside the housing (10). A setting plate (714) that can move vertically back and forth is installed below the mounting plate (71) via a driving component. The top ends of the first detection rod (76) and the second detection rod (78) are both fixed on the setting plate (714). The detection rod 2 (78) is provided with a through groove, and the two ends of the through groove pass through the center of the two end faces of the detection rod 2 (78). A movable rod (77) is slidably embedded in the through groove. The setting plate (714) is provided with a slot (712) at the position corresponding to the top of the movable rod (77). An elastic element (713) is provided in the slot (712). The two ends of the elastic element (713) are respectively connected to the bottom of the slot and the top of the movable rod (77).

4. An automatic wafer loading machine according to claim 2, characterized in that: The bottom of the mounting plate (71) is provided with a plurality of guide rods (72), and the setting plate (714) is provided with sliding holes for nesting the guide rods (72).

5. An automatic wafer loading machine according to claim 3, characterized in that: The driving component is a single-cylinder cylinder (73), the base (1) of which is mounted on the mounting plate (71), and the output shaft of which is mounted on the setting plate (714).

6. An automatic wafer loading machine according to claim 2, characterized in that: The bottom end of the movable rod (77) extends beyond the bottom end of the detection rod (78) by a length equal to the thickness of the chain link standard part.

7. An automatic wafer feeding machine according to claim 2, characterized in that: The bottom end of the movable rod (77) is arc-shaped.

8. An automatic wafer feeding machine according to claim 2, characterized in that: The bottom end of the second detection rod (78) is slidably fitted with a detection ring (710), the bottom end face of the detection ring (710) is flush with the bottom end face of the second detection rod (78), and the detection ring (710) is connected to the setting plate (714) through a reset member (79). A detection platform (711) is provided on any side of the detection ring (710), and an infrared ranging sensor (75) is provided on the detection platform (711) for measuring the distance between the detection platform (711) and the setting plate (714).

9. An automatic wafer loading machine according to claim 2, characterized in that: The distance detection device is an infrared range sensor 2 (74) used to measure the distance between the mounting plate (71) and the setting plate (714).

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