Feeding and discharging device

Abstract

A feeding and discharging device comprises a feeding part, a discharging part, a feeding part and a discharging part, the feeding part is provided with a feeding hole, and a plurality of stacked workpieces are placed in the feeding hole; the bearing seat is arranged on one side of the discharging part; the driving part is arranged on the side, away from the discharging part, of the bearing seat; the overturning material taking assembly is arranged between the material placing part and the driving part and comprises a moving part, an overturning part and an adsorption part used for adsorbing workpieces, the moving part is connected with the driving part, the overturning part comprises a rotating rod, a gear and a rack, the rotating rod is rotationally connected with the moving part, the adsorption part is connected with one end of the rotating rod and is arranged opposite to the material placing hole, and the gear and the rack are arranged on the rotating rod. The gear is connected with the end, away from the adsorption piece, of the rotating rod. The rack is arranged on the bearing base and engaged with the gear. According to the feeding and discharging device, the workpiece taking and discharging operation is simple, the structure of the feeding and discharging device is simple and small, the occupied space is small, the driving piece, the moving piece and the overturning piece are matched to enable the adsorption piece to overturn and adsorb and release the workpiece, the workpiece is adsorbed only through the adsorption piece in the moving and taking process, and the workpiece can be prevented from being damaged.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a loading and unloading device. Background Art

[0002] When loading and unloading workpieces, they are usually put into the vibrating plate manually, and then flow into the automatic line after being screened by the vibrating plate. After that, the robot will put the workpiece on the automatic line in the right position to unload the workpiece, so that the workpiece can enter the next processing section. However, the workpiece will be deformed when vibrating in the vibrating plate, and the robot placement process is cumbersome and occupies a large space. Utility Model Content

[0003] In view of the above, it is necessary to propose a loading and unloading device to simplify the loading and unloading process, reduce the space occupied by the loading and unloading device, and prevent the workpiece from being damaged during loading and unloading.

[0004] One embodiment of the present application provides a loading and unloading device, comprising: a material discharge member, comprising a material discharge hole, in which a plurality of stacked workpieces are placed; a bearing seat, arranged on one side of the material discharge member; a driving member, arranged on a side of the bearing seat away from the material discharge member; a flipping and picking assembly, arranged between the material discharge member and the driving member, comprising a moving member, a flipping member and an adsorption member for adsorbing the workpiece, the moving member is connected to the driving member, the flipping member comprises a rotating rod, a gear and a rack, the rotating rod is rotatably connected to the moving member, the adsorption member is connected to one end of the rotating rod and is arranged opposite to the material discharge hole, the gear The wheel is connected to an end of the rotating rod away from the adsorption member, and the rack is arranged on the bearing seat and meshes with the gear; the driving member is used to drive the movable member to drive the rotating rod to move toward the discharge member, so that the gear rotates under the action of the rack and drives the rotating rod and the adsorption member to rotate, so that the adsorption port of the adsorption member is oriented toward and close to the discharge hole to adsorb the workpiece in the discharge hole close to the driving member for material removal; the driving member is also used to drive the movable member to move back to the discharge member, so that the adsorption port of the adsorption member is back to the discharge hole and releases the adsorbed workpiece for unloading.

[0005] The above-mentioned loading and unloading device realizes the picking up of workpieces by driving the movable part toward the discharge part by the driving part, and realizes the unloading of workpieces by driving the movable part away from the discharge part. The picking up and unloading operations of the workpieces are relatively simple, and there are fewer structural parts, so that the structure of the loading and unloading device is compact and small, and the space occupied is small. In addition, the driving part, movable part and flipping part cooperate to make the adsorption part flip and adsorb and release the workpiece. The workpiece is only adsorbed by the adsorption part during the removal process, which can avoid damage to the workpiece.

[0006] In some embodiments, a half circumference of the gear is equal to a length of the rack.

[0007] In some embodiments, the supporting seat includes: a top plate, connected to the material discharge member; a bottom plate, arranged opposite to the top plate, the movable member is arranged between the bottom plate and the top plate, and the driving member is connected to the bottom plate; a side plate, connected to one side of the top plate and the bottom plate, and the rack is arranged on the side of the side plate away from the movable member.

[0008] In some embodiments, one side of the side plate is recessed to form a groove and a bottom groove and a top groove respectively connected to the groove, the bottom groove and the top groove are arranged opposite to each other, and the rack is arranged close to the groove, and the flipping and picking assembly also includes: a connecting member, one end of which is connected to the rotating rod and is located on the side of the gear away from the adsorption member; a rolling member, which is connected to the other end of the connecting member and is located in the groove, and the rolling member can be located in the bottom groove when the adsorption member is in an unflipped state, and can be located in the top groove after the adsorption member is flipped, wherein there is a gap between the gear and the rack when the rolling member is located in the bottom groove or the top groove.

[0009] In some embodiments, the connecting member includes: a fixing portion, one end of which is connected to the rotating rod and is located on the side of the gear away from the adsorption member, and the other end of the fixing portion extends away from the rotating rod to extend out of the gear; a bending portion, one end of the bending portion is connected to an end of the fixing portion away from the rotating rod, and the other end of the bending portion extends toward the adsorption member to extend out of the gear and connect to the rolling member.

[0010] In some embodiments, the side plate forms a chamfered surface at the end close to the top groove and the bottom groove respectively, and the chamfered surface is located in the groove, and the chamfered surface is used to guide the rolling element into the bottom groove or the top groove.

[0011] In some embodiments, the supporting seat further includes: a guide member, the two ends of which are respectively connected to the top plate and the bottom plate, and the guide member is passed through the moving member, and the guide member is used to guide the movement of the moving member.

[0012] In some embodiments, the supporting seat also includes: at least two shock absorbing members, which are respectively mounted on the guide members, at least one of the shock absorbing members abuts against the top plate, and at least one of the shock absorbing members abuts against the bottom plate, and the shock absorbing members are used to buffer the movement of the moving member toward the top plate or the bottom plate.

[0013] In some embodiments, the discharge member also includes: a connecting portion connected to the supporting seat; a discharge body provided at one end of the connecting portion, the discharge hole passes through the discharge body, and the discharge body is made of magnetic material so that multiple workpieces are arranged at intervals in the discharge hole.

[0014] In some embodiments, the discharge body includes: a discharge barrel, which is arranged at one end of the connecting part, and a through cavity is opened in the discharge barrel; a plurality of discharge columns, which are arranged on the side of the discharge barrel away from the driving member, and a discharge cavity connected to the through cavity is formed between the plurality of discharge columns, and the discharge hole is formed by the through cavity and the discharge cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a loading and unloading device provided in one embodiment of the present application.

[0016] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the loading and unloading device shown.

[0017] Figure 3 yes Figure 1 The three-dimensional structural schematic diagram of the loading and unloading device in the initial state is shown.

[0018] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the adsorption component in the loading and unloading device shown is when it is rotated to a first angle.

[0019] Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure of the adsorption component in the loading and unloading device shown is shown when it is rotated to a second angle.

[0020] Figure 6 yes Figure 3 A schematic diagram of the three-dimensional structure of the adsorption component in the loading and unloading device when it is rotated to a third angle.

[0021] Figure 7 yes Figure 3 A schematic diagram of the three-dimensional structure of the adsorption component in the loading and unloading device shown is shown when it rotates to a fourth angle.

[0022] Main component symbols

[0023] Loading and unloading device 100

[0024] Unloading parts 10

[0025] Discharge hole 11

[0026] Connecting part 12

[0027] Discharge body 13

[0028] Discharging barrel 131

[0029] Through cavity 1311

[0030] Discharging column 132

[0031] Discharge chamber 1321

[0032] Support seat 20

[0033] Top Plate 21

[0034] Bottom plate 22

[0035] Side Panel 23

[0036] Groove 231

[0037] Bottom slot 232

[0038] Top slot 233

[0039] Chamfered surface 234

[0040] Guide 24

[0041] Shock absorber 25

[0042] Driving member 30

[0043] Flip material taking component 40

[0044] Moving parts 41

[0045] Flip piece 42

[0046] Rotating rod 421

[0047] Gear 422

[0048] Rack 423

[0049] Connector 424

[0050] Fixed part 4241

[0051] Bending section 4242

[0052] Rolling Components 425

[0053] Adsorption parts 43

[0054] Adsorption port 431

[0055] Workpiece 200 DETAILED DESCRIPTION

[0056] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0057] In the description of the present application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0058] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0060] Please also see Figure 1 and Figure 2 One embodiment of the present application provides a loading and unloading device 100 for loading and unloading a circular workpiece 200. The loading and unloading device 100 includes a loading member 10, a bearing seat 20, a driving member 30 and a flipping and unloading assembly 40.

[0061] The material discharging member 10 is provided with a material discharging hole 11, which is a cylindrical hole, and a plurality of stacked workpieces 200 are placed in the material discharging hole 11. The bearing seat 20 is arranged on one side of the material discharging member 10. The driving member 30 is arranged on the side of the bearing seat 20 away from the material discharging member 10. In this embodiment, the driving member 30 is a cylinder. The flipping and picking assembly 40 is arranged between the material discharging member 10 and the driving member 30, and the flipping and picking assembly 40 includes a moving member 41, a flipping member 42 and an adsorption member 43 for adsorbing the workpiece 200; the moving member 41 is plate-shaped, and the moving member 41 is connected to the driving member 30; the flipping member 42 includes a rotating rod 421, a gear 422 and a rack 423. The rotating rod 421 is passed through the moving member 41 and is rotatably connected to the moving member 41; the suction member 43 is connected to one end of the rotating rod 421 and is arranged opposite to the discharge hole 11. In this embodiment, the suction member 43 is a suction cup connected to an external vacuum generator (not shown), and the gear 422 is connected to the end of the rotating rod 421 away from the suction member 43; the rack 423 is arranged on the bearing seat 20 and meshes with the gear 422; the driving member 30 is used to drive the moving member 41 to move toward the discharge member 10, so that the gear 422 is driven by the rack 423. The drive member 30 is also used to drive the movable member 41 to move back toward the discharge member 10, so that the gear 422 rotates under the action of the rack 423 and drives the rotating rod 421 and the adsorption member 421 to rotate, so that the adsorption port 431 of the adsorption member 43 is facing away from the discharge hole 11 and releases the adsorbed workpiece 200 for unloading.

[0062] The above-mentioned loading and unloading device 100 drives the moving part 41 toward the discharge part 10 through the driving part 30 to realize the picking up of the workpiece 200, and drives the moving part 41 away from the discharge part 10 to realize the unloading of the workpiece 200. The picking up and unloading operations of the workpiece 200 are relatively simple, and there are fewer structural parts, so that the structure of the loading and unloading device 100 is simple and compact, and occupies a small space. In addition, the driving part 30, the moving part 41 and the flipping part 42 cooperate to enable the adsorption part 43 to flip and adsorb and release the workpiece 200. The workpiece 200 is only adsorbed by the adsorption part 43 during the removal process, which can avoid damage to the workpiece 200.

[0063] The half circumference of the gear 422 is equal to the length of the rack 423. In this way, the gear 422 can rotate exactly one circle under the action of the rack 423, and the suction port 431 of the suction member 43 faces upward to take the material after the gear 422 rotates one circle; when the gear 422 is not rotating, the suction port 431 of the suction member 43 faces downward to discharge the material.

[0064] The material discharging member 10 includes a connecting portion 12 and a discharging body 13. The connecting portion 12 is generally plate-shaped and fixedly connected to the bearing seat 20; the discharging body 13 is inserted at one end of the connecting portion 12, and the discharging hole 11 passes through the discharging body 13. The discharging body 13 is made of magnetic material, and the workpiece 200 is made of a material that can be magnetically attracted. The discharging body 13 is used to allow multiple workpieces 200 to be spaced apart in the discharging hole 11. In this way, under the action of the magnetic discharging body 13, multiple workpieces 200 can be spaced apart in the discharging hole 11 of the discharging body 13, and it is more convenient to take the workpiece 200.

[0065] Specifically, the discharge body 13 includes a discharge barrel 131 and four discharge columns 132. The discharge barrel 131 is inserted at one end of the connecting portion 12, and a through cavity 1311 is provided in the discharge barrel 131; the four discharge columns 132 are arranged on the side of the discharge barrel 131 away from the driving member 30 and are distributed in a rectangular shape, and a discharge cavity 1321 connected to the through cavity 1311 is formed between the four discharge columns 132, and the discharge hole 11 is formed by the through cavity 1311 and the discharge cavity 1321. In this way, the discharge barrel 131 and the four discharge columns 132 jointly form the discharge hole 11, which can, on the one hand, make the strength of the discharge body 13 higher, and on the other hand, facilitate the discharge of materials in the discharge hole 11 of the discharge body 13.

[0066] It can be understood that in other embodiments, the number of discharge columns 132 can be five, seven or eight, but is not limited thereto.

[0067] It can be understood that in other embodiments, the discharge body 13 only includes the discharge barrel 131 .

[0068] It can be understood that in other embodiments, the discharge body 13 only includes a plurality of discharge columns 132 .

[0069] The bearing seat 20 includes a top plate 21, a bottom plate 22 and a side plate 23. The top plate 21 is connected to the side of the material discharge member 10 close to the driving member 30; the bottom plate 22 and the top plate 21 are arranged opposite to each other, the moving member 41 is arranged between the bottom plate 22 and the top plate 21, and the driving member 30 is connected to the bottom plate 22; the side plate 23 is connected to the same side of the top plate 21 and the bottom plate 22, and the rack 423 is arranged on the side of the side plate 23 away from the moving member 41. In this way, by arranging the top plate 21, the bottom plate 22 and the side plate 23, the flip material taking assembly 40 is arranged between the bottom plate 22 and the top plate 21, and the material discharge member 10 and the driving member 30 are arranged on the top plate 21 and the bottom plate 22 respectively, which can make the layout of the loading and unloading device 100 compact and occupy less space.

[0070] One side of the side plate 23 is concavely formed with a groove 231 and a bottom groove 232 and a top groove 233 respectively connected with the groove 231, the groove 231 runs through the two opposite sides of the side plate 234, and the side plate 23 is also provided with a bottom groove 232 and a top groove 233 connected with the groove 231, the bottom groove 232 and the top groove 233 are arranged opposite to each other and run through the two opposite sides of the side plate 234, and the rack 423 is arranged near the groove 231. The flip material taking assembly 40 also includes a connecting member 424 and a rolling member 425. One end of the connecting member 424 is connected to the rotating rod 421 and is located on the side of the gear 422 away from the adsorption member 43; the rolling member 425 is connected to the other end of the connecting member 424 and is located in the groove 231, and the rolling member 425 can be located in the bottom groove 232 when the adsorption member 43 is in an unflipped state, and can be located in the top groove 233 after the adsorption member 43 is flipped, wherein when the rolling member 425 is located in the bottom groove 232 or the top groove 233, there is a gap between the gear 422 and the rack 423.

[0071] In the process of the driving member 30 driving the moving member 41 to move toward the discharge member 10, the moving member 41 first drives the rotating rod 421 to move in a straight line. At this time, the rolling member 425 is in the bottom groove 232, and the suction port 431 of the suction member 43 faces downward; then the gear 422 contacts the rack 423, and the gear 422 drives the rotating rod 421, the rolling member 425 and the suction member 43 to rotate under the action of the rack 423, until the suction member 43 rotates nearly 180 degrees, at which time the gear 422 is about to disengage from the rack 423; then the moving member 41 drives the rotating rod 421 to move in a straight line, and the rolling member 425 moves into the top groove 233, and the suction port 431 of the suction member 43 just faces the discharge hole 11 of the discharge member 10.

[0072] The connecting member 424 includes a fixed portion 4241 and a bent portion 4242. The fixed portion 4241 is block-shaped, one end of which is connected to the rotating rod 421 and is located on the side of the gear 422 away from the adsorption member 43, and the other end of the fixed portion 4241 extends away from the rotating rod 421 to the extended gear 422; the bent portion 4242 is block-shaped, one end of which is connected to the end of the fixed portion 4241 away from the rotating rod 421, and the other end of the bent portion 4242 extends toward the adsorption member 43 to the extended gear 422 and connects to the rolling member 425. In this way, the layout between the fixed portion 4241 and the bent portion 4242 can be made compact.

[0073] In some embodiments, the side plate 23 forms a chamfered surface 234 at the end near the top groove 233 and the bottom groove 232, respectively. The chamfered surface 234 is located in the groove 231, and the chamfered surface 234 is used to guide the rolling element 425 into the bottom groove 232 or the top groove 233. In this way, the position of the adsorbing element 43 can be corrected; when the rolling element 425 is in the bottom groove 232, the adsorption port 431 of the adsorbing element 43 faces downward; when the rolling element 425 moves into the top groove 233, the adsorption port 431 of the adsorbing element 43 faces the discharge hole 11 of the discharge element 10.

[0074] The bearing seat 20 further includes two guide members 24 arranged at intervals, the guide members 24 are columnar, the two ends of each guide member 24 are respectively connected to the top plate 21 and the bottom plate 22, and the guide members 24 are arranged through the moving member 41, and the guide members 24 are used to guide the movement of the moving member 41. By providing two guide members 24, the moving member 41 can be prevented from shaking in a direction perpendicular to the extending direction of the guide members 24, thereby ensuring the accuracy of the moving direction of the moving member 41.

[0075] The bearing seat 20 also includes two groups of shock absorbing members 25, and the two shock absorbing members 25 of each group are respectively sleeved on a guide member 24, wherein one shock absorbing member 25 abuts against the top plate 21, and the other shock absorbing member 25 abuts against the bottom plate 22, and the shock absorbing member 25 is used to buffer the movement of the moving member 41 toward the top plate 21 or the bottom plate 22. When the moving member 41 abuts against the shock absorbing member 25 abutting against the top plate 21, there is a gap between the adsorption member 43 and the side of the discharge body 13 close to the driving member 30, and when the moving member 41 abuts against the shock absorbing member 25 abutting against the bottom plate 22, there is a gap between the adsorption member 43 and the bottom plate 22, so that it can prevent the adsorption member 43 from colliding with the bottom plate 22, or between the adsorption member 43 and the discharge body 13, thereby affecting the use of the adsorption member 43. In this embodiment, the shock absorbing member 25 is a shock absorbing rubber block.

[0076] The implementation process of the loading and unloading device 100 of the embodiment of the present application is as follows:

[0077] See also Figure 3 , multiple workpieces 200 are stacked and placed in the discharge hole 11, and then the driving member 30 drives the moving member 41 to move toward the discharge body 13. During the movement, the moving member 41 first drives the rotating rod 421 to move along a straight line. At this time, the rolling member 425 is in the bottom groove 232 and abuts against the bottom of the bottom groove 232, and the suction port 431 of the suction member 43 faces downward; then see Figure 4 , the gear 422 contacts the rack 423, and the gear 422 drives the rotating rod 421, the rolling member 425 and the adsorbing member 43 to rotate under the meshing action of the rack 423. The adsorption port 431 of the adsorbing member 43 is oriented obliquely downward, and the rolling member 425 abuts against the chamfered surface 234 close to the bottom plate 22; then the gear 422 continues to drive the rotating rod 421, the rolling member 425 and the adsorbing member 43 to rotate in sequence until Figure 5The status and Figure 6 The status shown in Figure 6 In the embodiment, the rolling element 425 abuts against the chamfered surface 234, and the gear 422 is about to disengage from the rack 423; Figure 7 The movable member 41 drives the rotating rod 421 to move in a straight line, so that the rolling member 425 moves into the top groove 233. At this time, the suction port 431 of the suction member 43 is just facing and close to the discharge hole 11 of the discharge member 10 to suction the workpiece 200 in the discharge hole 11 close to the driving member 30. Finally, the driving member 30 drives the movable member 41 to move away from the discharge member 10 until the rolling member 425 moves into the bottom groove 232 for unloading.

[0078] The loading and unloading device 100 of the present application adopts the driving member 30 to provide power, and the loading and unloading device 100 is used to realize the up and down flipping movement. The driving member 30 can complete the picking and placing of the workpiece 200 by a single extension and contraction in coordination with the adsorption member 43; the structure is simple and compact; the steering is carried out through the gear 422 and the rack 423, and the structure runs more stably; the discharge member 10 can create a gap between the workpieces 200, making it more convenient to take the material.

[0079] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A loading and unloading device, characterized in that: include: A material discharge piece is provided with a material discharge hole, in which a plurality of stacked workpieces are placed; A bearing seat, arranged on one side of the material placing member; A driving member, arranged on a side of the bearing seat away from the material discharging member; The flipping material taking component is arranged between the material discharging member and the driving member, and comprises a moving member, a flipping member and an adsorption member for adsorbing the workpiece, wherein the moving member is connected to the driving member, and the flipping member comprises a rotating rod, a gear and a rack, wherein the rotating rod is rotatably connected to the moving member, the adsorption member is connected to one end of the rotating rod and is arranged opposite to the material discharging hole, the gear is connected to one end of the rotating rod away from the adsorption member, and the rack is arranged on the bearing seat and meshes with the gear; The driving member is used to drive the movable member to drive the rotating rod to move toward the discharge member, so that the gear rotates under the action of the rack and drives the rotating rod and the adsorption member to rotate, so that the adsorption port of the adsorption member is oriented toward and close to the discharge hole to adsorb the workpiece in the discharge hole close to the driving member to take the material; the driving member is also used to drive the movable member to move back to the discharge member, so that the adsorption port of the adsorption member is back to the discharge hole and releases the adsorbed workpiece for unloading.

2. The loading and unloading device according to claim 1, characterized in that: The half circumference of the gear is equal to the length of the rack.

3. The loading and unloading device according to claim 2, characterized in that: The bearing seat comprises: A top plate connected to the material discharging member; A bottom plate is arranged opposite to the top plate, the moving member is arranged between the bottom plate and the top plate, and the driving member is connected to the bottom plate; The side plate is connected to the same side of the top plate and the bottom plate, and the rack is arranged on the side of the side plate away from the moving part.

4. The loading and unloading device according to claim 3, characterized in that: One side of the side plate is concavely formed with a groove and a bottom groove and a top groove respectively connected to the groove, the bottom groove and the top groove are arranged opposite to each other, the rack is arranged close to the groove, and the flip material taking assembly also includes: A connecting member, one end of which is connected to the rotating rod and is located on a side of the gear away from the adsorption member; A rolling member is connected to the other end of the connecting member and is located in the groove. The rolling member can be located in the bottom groove when the adsorbent is in an unflipped state, and can be located in the top groove after the adsorbent is flipped. When the rolling member is located in the bottom groove or the top groove, there is a gap between the gear and the rack.

5. The loading and unloading device according to claim 4, characterized in that: The connecting piece comprises: A fixing part, one end of which is connected to the rotating rod and is located on a side of the gear away from the adsorption member, and the other end of which extends away from the rotating rod and extends out of the gear; A bending portion, one end of which is connected to an end of the fixing portion away from the rotating rod, and the other end of the bending portion extends toward the adsorption component until it extends out of the gear and is connected to the rolling component.

6. The loading and unloading device according to claim 4, characterized in that: The side plates are respectively formed with a chamfered surface at the ends close to the top groove and the bottom groove, wherein the chamfered surface is located in the groove and is used to guide the rolling element into the bottom groove or the top groove.

7. The loading and unloading device according to claim 3, characterized in that: The bearing seat also includes: A guide member, two ends of which are respectively connected to the top plate and the bottom plate, and the guide member is passed through the moving member, and the guide member is used to guide the movement of the moving member.

8. The loading and unloading device according to claim 7, characterized in that: The bearing seat also includes: At least two shock absorbing members are respectively sleeved on the guide members, at least one of the shock absorbing members abuts against the top plate, and at least one of the shock absorbing members abuts against the bottom plate, and the shock absorbing members are used to buffer the movement of the moving member toward the top plate or the bottom plate.

9. The loading and unloading device according to claim 1, characterized in that: The material placing part comprises: A connecting portion connected to the bearing seat; A discharge body is arranged at one end of the connecting part, the discharge hole penetrates the discharge body, and the discharge body is made of magnetic material so that a plurality of workpieces are arranged at intervals in the discharge hole.

10. The loading and unloading device according to claim 9, characterized in that: The discharge body comprises: A discharge cylinder is arranged at one end of the connecting portion, and a through cavity is opened in the discharge cylinder; A plurality of discharge posts are arranged on a side of the discharge barrel away from the driving member, a discharge cavity connected to the through cavity is formed between the plurality of discharge posts, and the discharge hole is formed by the through cavity and the discharge cavity.

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