An open drum and workpiece processing system

Abstract

The open roller and workpiece processing system provided by the present invention comprises a frame, a roller assembly and a driving device, wherein the roller assembly comprises at least two tensioning shafts and a roller belt wound around the tensioning shaft in a closed loop, wherein the roller belt between two adjacent tensioning shafts is recessed inward to form an open accommodation cavity, the tensioning shaft is mounted on a transmission mechanism, the transmission mechanism moves under the drive of a power device, and has a first state of driving the roller belt to rotate and a second state of driving the roller assembly as a whole to rotate relative to the frame. The driving device drives the rotation of the roller belt and the rotation of the roller assembly as a whole at the same time, and while driving the roller belt to realize the tumbling of the workpiece, the roller assembly as a whole is driven to rotate to realize the unloading operation of the workpiece, the output power is saved, and the unloading is fast and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of roller plating equipment, and in particular to an open roller and a workpiece processing system. Background Art

[0002] Roll plating is also known as drum electroplating. A certain number of workpieces are placed in the inner cavity of a drum. As the drum rotates, the workpieces are constantly in contact with the plating liquid in the electroplating tank, and a metal layer or alloy coating of the required thickness is deposited on the surface of the workpiece to achieve the purpose of protecting the workpiece surface and other functions.

[0003] The open drum in the prior art includes fixed disks, a driving shaft, a driven shaft and a transmission belt arranged on both sides of the drum, wherein the transmission belt is wound around the driving shaft and the driven shaft and forms a closed loop, the front peripheral surface of the transmission belt is wound around the periphery of the fixed disk, and the front peripheral surface of the transmission belt and the two fixed disks form a receiving cavity with an opening and inward depression. The external driving force drives the driving shaft to rotate, and the rotation of the driving shaft drives the transmission belt to rotate so that the workpiece in the receiving cavity is constantly tumbling, so that the workpiece is fully in contact with the electroplating liquid or cleaning liquid in the tank body, and the workpiece is electroplated or cleaned.

[0004] When the transmission belt rotates forward, it drives the workpiece from the bottom of the drum to the highest point and then drops down, causing the workpiece to flip over and fully contact the electroplating liquid in the lower part of the drum cavity to achieve uniform electroplating; when the transmission belt rotates reversely, it drives the workpiece from the bottom of the drum to the opening of the drum, and then moves out of the drum from the opening, thereby realizing the unloading operation. The workpiece rotates with the transmission belt relying on the friction between it and the transmission belt. When the transmission belt rotates in the opposite direction, the batch of workpieces move from the bottom of the drum to the opening of the drum with the transmission belt. When the friction between the workpiece and the transmission belt is insufficient, some workpieces are easy to slide to the bottom of the drum under the action of their own gravity and cannot be unloaded, so that some workpieces remain at the bottom of the drum, resulting in incomplete unloading; if the unloading is to be thorough, the transmission belt needs to rotate in the opposite direction many times until all workpieces are output from the drum, which will result in long unloading time and low production efficiency. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of long drum unloading time in the prior art resulting in low production efficiency.

[0006] To this end, the present invention provides an open drum, comprising:

[0007] Frame;

[0008] The drum assembly comprises at least two tensioning shafts, and a drum belt wound around at least two of the tensioning shafts in a closed loop; wherein the drum belt between two adjacent tensioning shafts is recessed inward to form an open accommodation cavity;

[0009] The driving device includes a power device and a transmission mechanism installed on the frame, and the tensioning shaft is installed on the transmission mechanism; the transmission mechanism moves under the drive of the power device, and has a first state of driving the drum belt to rotate, and a second state of driving the drum assembly as a whole to rotate relative to the frame.

[0010] The transmission mechanism comprises:

[0011] At least two mounting members are coaxially rotatably disposed on two opposite side walls of the frame body;

[0012] Each of the tensioning shafts is arranged parallel to each other and both ends are fixed to mounting plates located on two opposite side walls of the frame body;

[0013] Two side blocks are circular and rotatably disposed on the two opposite mounting plates;

[0014] The front outer peripheral surface of the drum belt is tensioned and wound around the two side baffles to form an open accommodating cavity between the two side baffles.

[0015] The power device is suitable for driving the side stopper to rotate; the mounting member is arranged in linkage with the side stopper.

[0016] The transmission mechanism also includes:

[0017] A transmission shaft, one end of which is rotatably arranged on the frame body, and the other end of which is fixed on the side stopper; the mounting member is rotatably sleeved on the transmission shaft;

[0018] A driven member, fixed on the transmission shaft, and arranged to clamp the mounting member with the side stopper;

[0019] When the transmission shaft rotates, the friction force generated when the side stopper and the driven member rotate relative to the mounting member drives the mounting member to rotate.

[0020] The power device comprises:

[0021] A driving shaft, arranged parallel to the transmission shaft;

[0022] A driving gear, fixed on the driving shaft;

[0023] The driven member is a driven gear, which is meshed with the driving gear.

[0024] The transmission mechanism also includes:

[0025] Two first limiting parts are distributed along the axial direction of the transmission shaft at intervals and fixed on the transmission shaft;

[0026] The side stopper and the follower are respectively provided with first matching portions, which are suitable for matching and being fixed on the corresponding first limiting portions.

[0027] The transmission mechanism also includes:

[0028] A first limiting portion is fixed on the transmission shaft; the first limiting portion is extended along the radial direction of the transmission shaft;

[0029] The side stopper and the follower are respectively provided with first matching parts, which are suitable for matching and being fixed on the first limiting part;

[0030] The mounting member is rotatably sleeved on the first limiting portion.

[0031] A cross section of the first limiting portion along the radial direction of the transmission shaft is a regular polygon.

[0032] The transmission mechanism also includes:

[0033] A connecting member is sleeved and fixed on the first limiting portion; the outer peripheral wall of the connecting member is circular and matches the inner peripheral wall of the mounting member; and the mounting member is rotatably sleeved on the connecting member.

[0034] The connecting piece is a connecting disk.

[0035] The power device comprises:

[0036] Power input shaft;

[0037] a differential connected to the power input shaft;

[0038] A first output shaft, one end of which is connected to the differential, and the other end of which is connected to the side stopper;

[0039] A second output shaft has one end connected to the differential and the other end connected to the mounting member.

[0040] The rotation speed of the output of the first output shaft is greater than the rotation speed of the output of the second output shaft.

[0041] It also includes a linkage component; the linkage component includes:

[0042] A plurality of linkage teeth are evenly and spacedly distributed on one of the outer peripheral wall of the side stopper and the outer peripheral edge of the drum belt;

[0043] A plurality of tooth grooves are evenly and spacedly distributed on the outer peripheral wall of the side stopper and the outer peripheral edge of the drum belt;

[0044] The linkage teeth are meshed with the tooth grooves.

[0045] The mounting member is provided with a mounting portion for fixedly connecting the tensioning shaft;

[0046] Also includes:

[0047] At least one tensioning portion is disposed on the mounting member; the tensioning portion is suitable for connecting and fixing one end of the tensioning shaft;

[0048] The length of the tensioning portion from the rotation center of the mounting member is greater than the length of the mounting portion from the rotation center of the mounting member.

[0049] The mounting portion and the tensioning portion are both grooves matching the tensioning shaft.

[0050] Also includes:

[0051] A plurality of support sleeves are evenly spaced and sleeved on the tensioning shaft;

[0052] The drum belt is wound around the support sleeve.

[0053] It also includes a second limiting portion; the second limiting portion includes:

[0054] A limit pin, arranged on one of the mounting member or the frame;

[0055] Two limit blocks are arranged at intervals on the other of the mounting member or the frame;

[0056] When the mounting member drives the drum belt to reciprocate, the mounting member has a loading state in which the limiting pin abuts against one of the limiting blocks, and a discharging state in which the limiting pin abuts against the other limiting block.

[0057] In the loading state, the opening of the accommodating cavity faces the upper side of the frame; in the unloading state, the opening of the accommodating cavity faces the bottom of the frame.

[0058] The two limit blocks are spaced apart on the mounting plate; and the limit pin is fixed on the frame.

[0059] A plurality of bosses are arranged on the outer peripheral surface of the drum belt.

[0060] The drum belt is a chain plate assembly; the chain plate assembly is formed by splicing a plurality of chain plates.

[0061] The mounting member is a mounting plate in the shape of a circular ring and is coaxially arranged with the side stopper.

[0062] Also includes:

[0063] A stopper is fixed on the mounting member and blocks the opening of the accommodating cavity where the side stopper is located.

[0064] The present invention provides a workpiece processing system, comprising the open drum described above.

[0065] The technical solution of the present invention has the following advantages:

[0066] 1. The open drum provided by the present invention comprises a frame, a drum assembly and a driving device. The drum assembly comprises at least two tensioning shafts and a drum belt wound around the tensioning shaft in a closed loop. The drum belt between two adjacent tensioning shafts is recessed inward to form an open accommodating cavity. The tensioning shaft is installed on a transmission mechanism. The transmission mechanism moves under the drive of a power device and has a first state of driving the drum belt to rotate and a second state of driving the drum assembly as a whole to rotate relative to the frame. The driving device drives the drum belt to rotate and the drum assembly as a whole to rotate at the same time. While driving the drum belt to realize the tumbling of the workpiece, the drum assembly as a whole is driven to rotate to realize the unloading operation of the workpiece, which saves output power and makes unloading quick and efficient.

[0067] 2. The open drum provided by the present invention clamps the mounting member through the side stopper and the driven member, and the static friction generated between the side stopper and the driven member and the mounting member when the driving device drives the side stopper and the driven member to rotate drives the mounting member to drive the drum assembly to rotate as a whole, so the utilization rate of the driving force is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0069] Figure 1 It is a schematic diagram of the structure of an open drum of the present invention;

[0070] Figure 2 is a cross-sectional view of an open drum of the present invention;

[0071] Figure 3 It is a partial structural schematic diagram of the open drum of the present invention;

[0072] Figure 4 It is a structural schematic diagram of the open drum loading state of the present invention;

[0073] Figure 5 It is a structural schematic diagram of the open drum unloading state of the present invention;

[0074] Figure 6 The structure of the side baffle in the open drum of the present invention is shown in FIG. Figure 1 ;

[0075] Figure 7 The structure of the side baffle in the open drum of the present invention is shown in FIG. Figure 2 ;

[0076] Figure 8 It is a schematic diagram of the structure of the mounting plate in the open drum of the present invention;

[0077] Fig. 9 It is a schematic structural diagram of the transmission shaft in the open drum of the present invention;

[0078] Fig.10 It is a schematic diagram of the structure of the driven disc in the open drum of the present invention;

[0079] Fig.11 The structure of the connecting plate in the open drum of the present invention is shown in FIG. Figure 1 ;

[0080] Fig.12 The structure of the connecting plate in the open drum of the present invention is shown in FIG. Figure 2 .

[0081] Description of reference numerals:

[0082] 1. Frame; 2. Roller assembly; 21. Tensioning shaft; 22. Roller belt; 221. Ribbon; 23. Support sleeve; 31. Mounting plate; 311. Mounting part; 312. Tensioning part; 32. Side baffle; 321. Second matching groove; 33. Transmission shaft; 331. First limiting part; 34. Driven disk; 4. Power device; 40. Drive motor; 41. Drive shaft; 42. Drive gear; 5. Connecting disk; 51. Matching block; 52. First matching groove; 6. Linkage assembly; 61. Linkage tooth; 62. Tooth groove; 7. Second limiting part; 71. Limiting block; 72. Limiting pin; 8. Stop block. DETAILED DESCRIPTION

[0083] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0084] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the 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 invention 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 limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0085] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0087] Example 1

[0088] This embodiment provides an open drum, such as Figure 1 As shown, it includes a frame 1, a drum assembly 2 and a driving device.

[0089] The driving device includes a power device 4 and a transmission mechanism, and the drum assembly 2 includes at least two tensioning shafts 21, and a drum belt 22 wound around all the tensioning shafts 21 in a closed loop, wherein the drum belt 22 between two adjacent tensioning shafts 21 is recessed inward to form an open receiving cavity, and the workpiece to be processed is suitable for being placed into the receiving cavity from the open opening. The tensioning shaft 21 is installed on the transmission mechanism, and the transmission mechanism moves under the drive of the power device 4, and has a first state of driving the drum belt 22 to rotate around the tensioning shaft 21, and a second state of driving the drum assembly 2 as a whole to rotate relative to the frame 1.

[0090] The transmission mechanism includes at least two mounting members, two side blocks, a transmission shaft 33 and a driven member. In this embodiment, the mounting member is a mounting plate 31, the side block is a side block 32, and the driven member is a driven disc 34. Figure 2 As shown, two mounting plates 31 are provided, each mounting plate 31 is in the shape of a disc as a whole, two transmission shafts 33 are respectively rotatably fixed and penetrated on two inner walls facing each other in the frame body 1, the two transmission shafts 33 are coaxially arranged, the two mounting plates 31 are respectively penetrated on the corresponding transmission shafts 33, and can rotate on the transmission shafts 33 penetrated by them, and the mounting plates 31 can be square or other shapes. Two circular side baffles 32 correspond to the mounting plates 31 one by one and are respectively fixed on one end of the corresponding transmission shafts 33 facing the frame body 1, and the mounting plates 31 are abutted against the corresponding side baffles 32. When the side baffles 32 rotate with the transmission shafts 33, the friction force generated between the plate surfaces of the side baffles 32 and the mounting plates 31 in contact drives the mounting plates 31 to rotate on the transmission shafts 33.

[0091] All tensioning shafts 21 are arranged parallel to the transmission shaft 33 and both ends are fixed on two mounting plates 31 facing each other. Figure 4 or Figure 5 As shown, four tensioning shafts 21 are provided. Figure 8 As shown, four mounting portions 311 corresponding to the tensioning shaft 21 are provided on the mounting plate 31. The mounting portions 311 are mounting grooves matching the shape of the tensioning shaft 21. Both ends of the tensioning shaft 21 are respectively fixed in two opposite mounting grooves. The mounting portions 311 are located outside the projection surface of the side baffle 32 along the axis of the transmission shaft 33 toward the mounting plate 31.

[0092] like Figure 4 As shown, the drum belt 22 is wound around all four tensioning shafts 21 in a closed loop, and the front outer peripheral surface of the drum belt 22 is tensioned and wound around two side baffles 32 to form an open and concave receiving cavity between the two side baffles 32. A plurality of support sleeves 23 are arranged on each tensioning shaft 21, such as Figure 2 or Figure 4 As shown, four support sleeves 23 are arranged on each tensioning shaft 21 , and the drum belt 22 is tensioned and wound around the support sleeves 23 .

[0093] like Figure 8 As shown, at least one tensioning portion 312 is also provided on the mounting plate 31. The tensioning portion 312 is a mounting groove identical to the mounting portion 311, with the difference that the length of the tensioning portion 312 from the rotation center of the mounting plate 31 is greater than the length of the mounting portion 311 from the rotation center of the mounting plate 31. In the present embodiment, two tensioning portions 312 are provided.

[0094] The driven disc 34 is fixed on the transmission shaft 33, and the mounting plate 31 is located between the driven disc 34 and the side baffle 32. The driven disc 34 and the side baffle 32 are respectively abutted against the opposite side walls of the mounting plate 31 to clamp the mounting plate 31. When the transmission shaft 33 rotates, the side baffle 32 and the driven disc 34 are driven to rotate at the same time. The friction force generated between the contact surface of the side baffle 32 and the mounting plate 31 and the friction force generated between the contact surface of the driven disc 34 and the mounting plate 31 jointly drive the mounting plate 31 to rotate on the transmission shaft 33.

[0095] like Fig. 9As shown, a first limiting portion 331 is provided on the transmission shaft 33, and the first limiting portion 331 is extended along the radial direction of the transmission shaft 33. The center of the side baffle plate 32 and the driven disk 34 respectively opens a first matching portion, which is suitable for matching and fixing on the first limiting portion 331. In this embodiment, the cross-section of the first limiting portion 331 along the radial direction of the transmission shaft 33 is a regular polygon, for example, a hexagon, and the corresponding first matching portion is a hexagonal hole or a hexagonal groove coaxially surrounding the outer periphery of the axial hole for the transmission shaft 33 to pass through. When the first matching portion is a hole, the side baffle plate 32 and the driven disk 34 are directly sleeved and fixed on the first limiting portion 331; when the first matching portion is a groove, the side baffle plate 32 and the driven disk 34 are sleeved on the transmission shaft 33 through the axial hole, and are sleeved on the two ends of the first limiting portion 331 through the groove.

[0096] like Fig.11 or Fig.12 As shown, the connecting member is a connecting disk 5, whose outer peripheral wall is circular and matches the inner peripheral wall of the mounting member, with an axial hole in the center, and a first hexagonal matching groove 52 recessed inwardly is provided on one side wall surface surrounding the axial hole, and a hexagonal matching block 51 is protruded on the other side wall surface opposite to the axial hole. The connecting disk 5 is sleeved on the transmission shaft 33 through the axial hole, and is sleeved and fixed on one end of the first limiting portion 331 facing the inside of the frame 1 through the first matching groove 52, and the side wall surface with the first matching groove 52 is abutted against the wall surface of the driven disk 34, as shown in FIG. Fig.10 As shown, a hexagonal matching hole is provided in the center of the driven disk 34, which is directly sleeved and fixed on the first limiting portion 331. Figure 7 As shown, the matching block 51 on the side baffle 32 corresponding to the connecting disk 5 is provided with a matching second matching groove 321 around the axial hole thereon, and the side baffle 32 is fixed on the transmission shaft 33 through the axial hole, and is nested and fixed on the matching block 51 through the second matching groove 321.

[0097] like Figure 2 As shown, the linkage assembly 6 includes a plurality of linkage teeth 61 and a plurality of tooth grooves 62 matching the linkage teeth 61. Figure 6 As shown, the linkage teeth 61 are evenly and spaced apart on the outer wall of the side baffle 32, the tooth grooves 62 are evenly and spaced apart on the edge of the outer wall of the drum belt 22, the linkage teeth 61 and the tooth grooves 62 are meshed with each other, and when the side baffle 32 rotates with the transmission shaft 33, the drum belt 22 is driven to rotate around the tensioning shaft 21 through the linkage teeth 61.

[0098] like Figure 2As shown, in this embodiment, the power device 4 includes a driving motor 40, a driving shaft 41, a driving gear 42 and a driven gear. The driving motor 40 is a reciprocating motor, which can switch the driving shaft 41 between clockwise rotation and counterclockwise rotation. The driving shaft 41 is arranged parallel to the tensioning shaft 21, and a driving gear 42 is fixed at each end thereof. The driving motor 40 is fixed above the frame 1 and meshes with one of the driving gears 42 through the motor gear. In this embodiment, the driven disk 34 is a driven gear, and the driving gears 42 at both ends of the driving shaft 41 are respectively meshed with the corresponding two driven disks 34. When the driving motor 40 is started, the driving gear 42 drives the driven disk 34 to rotate, thereby driving the transmission shaft 33 to rotate, and at the same time the side baffle 32 rotates, and the side baffle 32 drives the drum belt 22 to rotate through the linkage gear 61; the side baffle 32 and the driven disk 34 clamp the mounting plate 31 and drive the mounting plate 31 to rotate, and at the same time the mounting plate 31 drives the four tensioning shafts 21 to rotate, thereby driving the drum assembly 2 to rotate as a whole relative to the frame 1.

[0099] like Figure 3 As shown, a second limiting portion 7 is also provided, including a limiting pin 72 and two limiting blocks 71. In this embodiment, the two limiting blocks 71 are respectively formed on the mounting plate 31, and are arranged along the radial extension of the circular mounting plate 31 and protrude from the mounting plate 31. The limiting pin 72 is fixed to the inner wall of the frame body 1. When the mounting plate 31 rotates, it has a loading state in which one limiting block 71 abuts against the limiting pin 72 and a unloading state in which the other limiting block 71 abuts against the limiting pin 72. Figure 4 As shown, in the loading state, the power device 4 drives the side baffle plate 32 to drive the drum belt 22 to rotate counterclockwise. At this time, one of the limit blocks 71 on the mounting plate 31 is blocked on the limit pin 72, and the opening of the accommodating cavity is facing the upper side of the frame 1. After the workpiece is placed, the power device 4 always drives the drum belt 22 to rotate counterclockwise for roller plating. The mounting plate 31 is always in the loading position due to the resistance of the limit pin 72. When the roller plating is completed and the open drum is converted from the loading state to the down-feeding state, the power device 4 drives the side baffle plate 32 to drive the drum belt 22 to rotate clockwise in the opposite direction, as shown in FIG. Figure 5 As shown, when the material is unloading, the opening of the accommodating cavity is rotated to face the bottom of the frame body 1, so that the workpiece can be directly poured out without being blocked by the drum belt 22, and the unloading efficiency is high.

[0100] like Figure 1 or Figure 4 As shown, two stoppers 8 are arranged one by one corresponding to the side baffles 32, and the two stoppers 8 are respectively fixed on the mounting plate 31 on the same side. The stoppers 8 block the openings where the side baffles 32 are located to block the gap between the side baffles 32 and the mounting plate 31 to prevent small workpieces or impurities from entering the gap.

[0101] like Figure 1As shown, a plurality of bosses are arranged on the outer circumference of the drum belt 22, so as to facilitate the workpiece to roll when the drum belt 22 rotates, thereby improving the efficiency of the drum plating. In this embodiment, the bosses are ribs 221 arranged parallel to the tensioning shaft 21, and of course, they can also be irregularly distributed on the outer circumference of the drum belt 22.

[0102] In this embodiment, the drum belt 22 is a chain plate assembly, which is spliced ​​by a plurality of chain plates. The chain plates are in a grid-like structure as a whole, and the dense grid facilitates the circulation of the roller plating liquid.

[0103] As a first replaceable implementation scheme of Example 1, the mounting plate 31 and the transmission shaft 33 can be connected by a torque release structure, and the mounting plate 31 can be rotated in the same direction as the side baffle 32 and only in an initial local section (the distance between the two limit blocks 71) through a torsion principle equivalent to that of a torque wrench. The torque release structure includes a pressure spring, a torque release joint and a torque push rod, and the torque value is set to be smaller than the friction force applied to the mounting plate 31 when the driven disk 34 and the side baffle 32 rotate. When the mounting plate 31 rotates to the loading state or the unloading state, it is blocked by the limiting pin 72, overcomes the static friction force of the side baffle 32 and the driven disk 34 driving the mounting plate 31 to rotate, and is converted into a sliding friction force. The sliding friction force applied to the mounting plate 31 reaches the torque value, which will produce a momentary disconnection effect. At this time, the mounting plate 31 no longer rotates with the side baffle 32 and the driven disk 34.

[0104] As a second replaceable implementation of Example 1, two first limiting portions 331 can be set, and first matching portions are respectively set on the side baffle plate 32 and the driven disk 34, which are suitable for correspondingly matching and fixing on the first limiting portions 331, and the mounting plate 31 is sleeved on the transmission shaft 33 between the two first limiting portions 331.

[0105] As a third alternative implementation of Example 1, the connecting plate 5 may not be provided, and the mounting plate 31 is directly rotatably provided on the first limiting portion 331 having a regular polygonal cross section.

[0106] As a fourth alternative implementation of Example 1, the cross-section of the first limiting portion 331 along the radial direction of the transmission shaft 33 can be a non-regular polygon, which can satisfy the requirement that the mounting plate 31 is mounted on the first limiting portion 331 and rotates coaxially with the transmission shaft 33.

[0107] As a fifth alternative implementation of Example 1, the linkage assembly 6 may not be provided, and the drum belt 22 is tensioned on the side baffle 32. When the side baffle 32 rotates, the drum belt 22 is driven to rotate by the friction between the side baffle 32 and the drum belt 22.

[0108] Example 2

[0109] This embodiment provides an open drum, which is different from the technical solution of embodiment 1 in that the power device 4 includes a power input shaft, a differential, a first output shaft and a second output shaft, one end of the power input shaft is connected to the output shaft of the drive motor 40, and the other end is connected to the differential, one end of the first output shaft is connected to the differential, and the other end is connected to the side baffle 32, one end of the second output shaft is connected to the differential, and the other end is connected to the mounting plate 31, and the speed ratio between the first output shaft and the second output shaft can be appropriately adjusted, and the drum belt 22 and the drum assembly 2 rotate in the same direction at the same time as a whole, and when the second output shaft drives the mounting plate 31 to rotate from the loading state to the unloading state, the workpiece located in the accommodating cavity can be fully rolled, and in the process of rotating from the loading state to the unloading state, the first output shaft drives the side baffle 32 to drive the drum belt 22 to rotate, so as to achieve full flipping of the workpiece in the accommodating cavity. In this embodiment, the speed output by the first output shaft is greater than the speed output by the second output shaft.

[0110] Example 3

[0111] This embodiment provides a workpiece processing system, including the open drum in embodiment 1 or embodiment 2.

[0112] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An open drum, characterized in that: include: Frame (1); The drum assembly (2) comprises at least two tensioning shafts (21) and a drum belt (22) wound around the at least two tensioning shafts (21) in a closed loop; wherein the drum belt (22) between two adjacent tensioning shafts (21) is recessed inwardly to form an open accommodation cavity; The driving device comprises a power device (4) and a transmission mechanism installed on the frame (1), the tensioning shaft (21) being installed on the transmission mechanism; the transmission mechanism moves under the drive of the power device (4) and has a first state of driving the drum belt (22) to rotate, and a second state of driving the drum assembly (2) as a whole to rotate relative to the frame (1); The transmission mechanism comprises: At least two mounting members are coaxially rotatably arranged on two opposite side walls of the frame (1); Each of the tensioning shafts (21) is arranged parallel to each other and both ends are respectively fixed on mounting plates (31) located on two opposite side walls in the frame body (1); Two side blocks are circular and rotatably arranged on two opposite mounting plates (31); The front outer peripheral surface of the drum belt (22) is tensioned and wound around the two side baffles to form an open accommodation cavity between the two side baffles; The power device (4) drives the side block to move, and the side block is configured to drive the mounting plate (31) to move synchronously via static friction between the side block and the mounting plate (31), so as to drive the drum assembly (2) to move.

2. The open drum according to claim 1, characterized in that: The power device (4) is suitable for driving the side stopper to rotate; and the mounting member is arranged in linkage with the side stopper.

3. The open drum according to claim 2, characterized in that: The transmission mechanism also includes: A transmission shaft (33), one end of which is rotatably disposed on the frame (1) and the other end of which is fixed on the side stopper; the mounting member is rotatably sleeved on the transmission shaft (33); A driven member, fixed on the transmission shaft (33), and arranged to clamp the mounting member with the side stopper; When the transmission shaft (33) rotates, the friction force generated when the side stopper and the driven member rotate relative to the mounting member drives the mounting member to rotate.

4. The open drum according to claim 3, characterized in that: The power device (4) comprises: A driving shaft (41) is arranged parallel to the transmission shaft (33); A driving gear (42) fixed on the driving shaft (41); The driven member is a driven gear, which is meshed with the driving gear (42).

5. The open drum according to claim 3, characterized in that: The transmission mechanism also includes: Two first limiting portions (331) are spaced apart and distributed along the axial direction of the transmission shaft (33) and fixed on the transmission shaft (33); The side stopper and the follower are respectively provided with first matching portions, which are suitable for matching and being fixed on the corresponding first limiting portion (331).

6. The open drum according to claim 3, characterized in that: The transmission mechanism also includes: A first limiting portion (331) is fixed on the transmission shaft (33); the first limiting portion (331) is extended along the radial direction of the transmission shaft (33); The side stopper and the follower are respectively provided with first matching portions, which are suitable for matching and being fixed on the first limiting portion (331); The mounting member is rotatably sleeved on the first limiting portion (331).

7. The open drum according to claim 6, characterized in that: The cross section of the first limiting portion (331) along the radial direction of the transmission shaft (33) is in the shape of a regular polygon.

8. The open drum according to claim 7, characterized in that: The transmission mechanism also includes: A connecting piece is sleeved and fixed on the first limiting portion (331); the outer peripheral wall of the connecting piece is circular and matches the inner peripheral wall of the mounting piece; and the mounting piece is rotatably sleeved on the connecting piece.

9. The open drum according to claim 8, characterized in that: The connecting piece is a connecting disk (5).

10. The open drum according to claim 1, characterized in that: The power device (4) comprises: Power input shaft; a differential connected to the power input shaft; A first output shaft, one end of which is connected to the differential, and the other end of which is connected to the side stopper; A second output shaft has one end connected to the differential and the other end connected to the mounting member.

11. The open drum according to claim 10, characterized in that: The rotation speed of the output of the first output shaft is greater than the rotation speed of the output of the second output shaft.

12. The open drum according to any one of claims 1 to 11, characterized in that: It also includes a linkage component (6); the linkage component (6) includes: A plurality of linkage teeth (61) are evenly and spacedly distributed on one of the outer peripheral wall of the side stopper and the outer peripheral edge of the drum belt (22); A plurality of tooth grooves (62) are evenly and spacedly distributed on the outer peripheral wall of the side block and the outer peripheral edge of the drum belt (22); The linkage teeth (61) and the tooth grooves (62) are meshed with each other.

13. The open drum according to claim 12, characterized in that: The mounting member is provided with a mounting portion (311) for fixedly connecting the tensioning shaft (21); Also includes: At least one tensioning portion (312) is arranged on the mounting member; the tensioning portion (312) is suitable for connecting and fixing one end of the tensioning shaft (21); The length of the tensioning portion (312) from the rotation center of the mounting member is greater than the length of the mounting portion (311) from the rotation center of the mounting member.

14. The open drum according to claim 13, characterized in that: The mounting portion (311) and the tensioning portion (312) are both grooves that match the tensioning shaft (21).

15. The open drum according to claim 13, characterized in that: Also includes: A plurality of support sleeves (23) are evenly spaced and sleeved on the tensioning shaft (21); The drum belt (22) is wound around the support sleeve (23).

16. The open drum according to claim 12, characterized in that: It also includes a second limiting portion (7); the second limiting portion (7) includes: A limit pin (72) is arranged on one of the mounting member or the frame (1); Two limit blocks (71) are arranged at intervals on the other of the mounting member or the frame (1); When the mounting member drives the drum belt (22) to reciprocate, the mounting member has a loading state in which the limiting pin (72) abuts against one of the limiting blocks (71) and a unloading state in which the limiting pin (72) abuts against the other limiting block (71).

17. The open drum according to claim 16, characterized in that: In the loading state, the opening of the accommodating cavity faces the upper side of the frame (1); in the unloading state, the opening of the accommodating cavity faces the bottom of the frame (1).

18. The open drum according to claim 17, characterized in that: The two limit blocks (71) are arranged on the mounting plate (31) at intervals; and the limit pin (72) is fixed on the frame (1).

19. The open drum according to claim 1, characterized in that: A plurality of bosses are arranged on the outer peripheral surface of the drum belt (22).

20. The open drum according to claim 1, characterized in that: The drum belt (22) is a chain plate assembly; the chain plate assembly is formed by splicing a plurality of chain plates.

21. The open drum according to claim 12, characterized in that: The mounting member is a mounting plate (31) which is annular and is coaxially arranged with the side stopper.

22. The open drum according to claim 12, characterized in that: Also includes: A stopper (8) is fixed on the mounting member and blocks the opening of the accommodating cavity where the side stopper is located.

23. A workpiece processing system, characterized in that: An open drum comprising the open drum according to any one of claims 1-22.

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