CN111644474A

CN111644474A - Vertical expansion device and processing equipment thereof

Info

Publication number: CN111644474A
Application number: CN202010527247.4A
Authority: CN
Inventors: 刘仁前; 刘健; 蒋小飞; 何通; 王旭; 李晨晨
Original assignee: Shandong Xiaoya Precise Machinery Co ltd
Current assignee: Shandong Xiaoya Precise Machinery Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-09-11

Abstract

The invention provides a vertical expansion device and processing equipment thereof, wherein the vertical expansion device comprises a support, a cone, an expansion block and a telescopic execution mechanism; the telescopic actuating mechanism is arranged below the support and used for driving the cone to move up and down; when the cone moves downwards, the expansion block is forced to slide outwards along the radial direction of the cone by the sliding extrusion between the conical surface and the working surface, and then the rim is expanded. Compared with the extrusion vertical expander in the prior art, the expansion of the rim is realized by adopting a drawing mode, no barrier is arranged above the cone, and the rim loading and unloading manipulator is convenient to operate, so that the automation level of the process and the efficiency of loading and unloading are greatly improved, and the production cost is reduced while the labor intensity is reduced.

Description

Vertical expansion device and processing equipment thereof

Technical Field

The invention relates to the technical field of automobile part processing, in particular to a vertical expansion device for processing an automobile rim and processing equipment thereof.

Background

At present, at the expansion station of automobile rim production line, there are a lot of shortcomings in traditional expander: on the wheel industry rim line expansion process in China, production line automation degree is lower, and the material loading and the unloading of work piece have to rely on mainly artifical the realization, and workman intensity of labour is big, and has the potential safety hazard, some adopt simple autoloading, but the effect is unstable, and control accuracy is low, takes place the card material easily, leads to the unnecessary waste product to produce. For example, the conventional expander adopts a four-column press machine and is provided with two sets of symmetrically arranged dies, so that the effective space is small, and the feeding, discharging and die replacement are inconvenient and the like.

Disclosure of Invention

The invention aims to provide a vertical expansion device and processing equipment thereof, which are used for solving at least one technical problem in the prior art.

In order to solve the above technical problem, the present invention provides a vertical expansion device, comprising: the device comprises a support, a cone, an expansion block and a telescopic actuating mechanism;

the cone is arranged above the support in a manner of moving up and down; the expansion blocks are distributed on the circumferential direction of the cone body and can slide along the radial direction of the cone body;

the cone comprises a frustum-shaped conical surface with a large upper part and a small lower part, and the expansion block is provided with a working surface matched with the conical surface;

the telescopic actuating mechanism is arranged below the support and used for driving the cone to move up and down; when the cone moves downwards, the expansion block is forced to slide outwards along the radial direction of the cone by the sliding extrusion between the conical surface and the working surface, and then the rim is expanded.

Compared with the extrusion vertical expander in the prior art, the expansion of the rim is realized by adopting a drawing mode, no barrier is arranged above the cone, and the rim loading and unloading manipulator is convenient to operate, so that the automation level of the process and the efficiency of loading and unloading are greatly improved, and the production cost is reduced while the labor intensity is reduced.

The expansion block is detachably arranged on the expansion block and used for expanding the expansion radius of the expansion block.

Through setting up the cushion, can improve vertical expanding unit's expansion radius to be applicable to the rim processing of bigger internal diameter specification, improved the suitability of this application to different specification rims.

Furthermore, a guide key is arranged on the support, and a guide groove matched with the guide key in a guide manner is formed in the bottom of the expansion block.

Further, a return spring is included which tends to force the expansion blocks to slide radially inward of the cone.

Further, the supporting device is used for adjusting the placement height of the wheel rim when the wheel rim is expanded, so that the wheel rim is guaranteed to be sleeved on the middle upper portion of the expansion block.

During expansion, the expansion block has a tendency of bending deformation in a horn mouth form from top to bottom on the cone, when the rim with smaller thickness is processed, the rim is placed on the support and is close to the root of the expansion block, the cone is not generally inserted into the rim in the height direction, or only a small part of the cone is inserted into the rim, namely, during expansion, the center of the middle lower part of the expansion block is in a hollow state, so that the bending deformation is more serious relative to the middle upper part of the expansion block, and under the condition, the hole expanded in the middle of the rim has the defect of big end up and small end down (also called big end and small end phenomenon). According to the invention, the placing height of the rim is increased through the supporting device, the rim is ensured to be sleeved on the middle upper part of the expansion block, and the cone completely penetrates through the rim downwards in the height direction during expansion, so that the bending deformation of the expansion block is avoided, and the large and small head defects of the reaming of the rim are further avoided.

Further, the supporting device comprises a supporting ring and a height adjusting mechanism;

the height-adjustable suit of lock ring is outside expanding the piece, height adjustment mechanism is used for adjusting the height of lock ring.

The height adjusting mechanism has many forms, such as an electric, pneumatic or hydraulic driven telescopic mechanism and the like. The form of the supporting device is not limited, and more simply, a plurality of supporting rings with different heights are arranged, so that the supporting device is suitable for rims with different thicknesses (widths) and specifications.

Further, the device also comprises a feeding mechanism and a discharging mechanism;

the feeding mechanism is used for sleeving the rim before expansion on the expansion block;

the blanking mechanism is used for taking down the expanded rim from the expansion block.

Further, the feed mechanism includes: the feeding clamping mechanism and the feeding conveying mechanism; the unloading mechanism includes: blanking clamping mechanism and blanking conveying mechanism.

The clamping mechanism is in a plurality of forms and generally comprises two clamping parts which are arranged in bilateral symmetry, the two clamping parts are relatively close to or far away from each other under the driving of the driving mechanism, and a clamping opening between the two clamping parts is opened or closed to clamp or put down a rim. The driving mechanism can be a pneumatic, hydraulic or pneumatic telescopic mechanism, or a driving motor and a gear transmission mechanism.

Wherein preferably, the clamping mechanism comprises: a gear and two racks; the two racks are respectively connected with the two clamping parts, and the two racks and the two clamping parts are synchronously driven to move through the driving motor and the gear. The clamping mechanism realizes the synchronous clamping function of the clamping hands by utilizing the same group of gear rack mechanisms, ensures that the center of a workpiece clamped every time is the center of the clamping mechanism, and is suitable for various rims with different specifications.

The conveying mechanism then includes: horizontal conveying mechanism and lifting conveying mechanism. The conveying mechanism is prior art and generally comprises: the device comprises a base, a guide rail and a driving mechanism, wherein the driving mechanism can be a telescopic mechanism, a driving motor, a lead screw nut transmission mechanism and the like.

The rim expanding device adopts a drawing mode to expand the rim, no barrier is arranged above the cone, and the rim loading and unloading manipulator is convenient to operate, so that the automation level of the process and the loading and unloading efficiency are greatly improved, the labor intensity of workers is reduced, and the production cost is reduced.

In addition, the invention also discloses a processing device with the vertical expansion device, which comprises: the conveying channel, the first vertical expansion device and the second vertical expansion device;

a first feeding station and a first discharging station are arranged on two sides of the first vertical expansion device; a second feeding station and a second discharging station are arranged on two sides of the second vertical expansion device;

the transfer passage includes:

a feeding station and a material returning station which are respectively arranged at two ends;

a first feeding channel connecting the feeding station and the first feeding station;

the first blanking channel is connected with the first blanking station and the material returning station;

a second feeding channel connecting the feeding station and the second feeding station;

the second blanking channel is connected with the second blanking station and the material returning station;

the feeding station is provided with a channel switching mechanism for guiding a rim on the feeding station to selectively enter the first feeding channel or the second feeding channel.

Further, the channel switching mechanism is a gate mechanism capable of selectively closing or opening the first feeding channel or the second feeding channel.

The processing equipment comprises control units such as a CUP (compute unified processing Unit) and a single chip microcomputer, the gate mechanism comprises a gate and a swing mechanism (such as a stepping motor or a steering engine) for driving the gate to swing left and right, the control unit is connected with the swing mechanism, and the gate is controlled by the swing mechanism to close the first feeding channel or the second feeding channel, so that a rim is guided to enter the second feeding channel or the first feeding channel.

Furthermore, a first feeding mechanism is arranged on the first feeding station, and a first discharging mechanism is arranged on the first discharging station;

and a second feeding mechanism is arranged on the second feeding station, and a second discharging mechanism is arranged on the second discharging station.

Further, the conveying channel is obliquely arranged and used for automatically rolling the wheel rims from the feeding station to the material returning station.

The conveying channel is obliquely arranged, and the rim rolls from the feeding end to the material returning direction by means of the gravity of the rim, so that the production cost is greatly reduced.

Furthermore, a feeding turnover mechanism is respectively arranged on the first feeding station and the second feeding station; material loading tilting mechanism includes: the feeding turnover plate and the feeding turnover driving mechanism; the feeding turnover plate is used for bearing a rolled rim, and the feeding turnover driving mechanism is used for driving the feeding turnover swinging mechanism to rotate so as to level the rim.

After the rim is flatly placed, the feeding mechanism clamps the rim, and then conveys the rim to an expansion station of the expansion device, namely, the rim is sleeved outside the expansion block, namely, on the support.

Furthermore, a first blanking station and a second blanking station are respectively provided with a blanking turnover mechanism; unloading tilting mechanism includes: the blanking turnover plate and the blanking turnover driving mechanism;

the blanking overturning driving mechanism is used for driving the blanking to overturn and swing, so that the horizontally-placed rim is erected, and the erected rim rolls to the material returning station along the first blanking channel or the second blanking channel.

The blanking mechanism clamps the expanded rim, the rim is horizontally placed on the blanking turning plate, the blanking turning plate is turned under the driving of the blanking turning driving mechanism so as to stand the rim, and the rear rim rolls to a material returning station along a blanking channel.

Preferably, the turning plate is pivoted on the rack, the turning driving mechanism can be a telescopic rod piece, and two ends of the telescopic rod piece are respectively hinged with the turning plate and the rack, so that the turning of the turning plate can be realized. Of course, the turnover driving mechanism can also be in the form of a motor, a speed reduction transmission mechanism and the like.

The turning plate is preferably vertically provided with a plurality of limiting rods arranged at intervals and used for bearing the rim or limiting the rim, so that the turning plate is prevented from falling in the turning process.

The two expansion devices are arranged on the two sides of the conveying channel, so that the occupied space is small, the expansion devices can share one set of hydraulic or pneumatic system, corresponding channels can be switched according to product specifications when different types of products are produced, the space of a production line workshop is saved, the expansion of rims of different specifications and various types can be met, the expansion of products of various types is realized, the occupied space is small, the efficiency is high, and the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a vertical stent provided in example 1 of the present invention;

FIG. 2 is a schematic structural view of a vertical stent provided in example 2 of the present invention;

FIG. 3 is a schematic structural view of a vertical type stent provided with a supporting means in example 2 of the present invention;

fig. 4 is a plan view of a processing apparatus provided in embodiment 3 of the present invention;

fig. 5 is a front view of a processing apparatus provided in embodiment 3 of the present invention;

fig. 6 is a right side view of the processing apparatus provided in embodiment 3 of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

Example 1

As shown in fig. 1, the present embodiment provides a vertical expansion device, which includes: the device comprises a support 10, a cone 11, an expansion block 12 and a telescopic actuating mechanism 13;

the cone 11 is arranged above the support 10 in a manner of moving up and down; the expansion blocks 12 are arranged on the circumference of the cone 11 and can slide along the radial direction of the cone 11;

the cone 11 comprises a frustum-shaped conical surface with a large upper part and a small lower part, and the expansion block 12 is provided with a working surface matched with the conical surface;

the telescopic actuator 13 is disposed below the stand 10, specifically, the stand 10 is disposed on the bracket 14, and the telescopic actuator 13 is a hydraulic cylinder fixedly disposed on the bracket 14. The telescopic actuating mechanism 13 is connected with the cone 11 and is used for driving the cone 11 to move up and down; when the cone 11 moves downwards, the expanding block 12 is forced to slide outwards along the radial direction of the cone 11 by the sliding compression between the conical surface and the working surface, and then the expanding treatment of the rim 1 is realized.

Wherein, be provided with the guide key on the support 10, the expansion piece 12 bottom is provided with in the guide key direction complex guide way. And the present embodiment also comprises a return spring which tends to force the expansion blocks 12 to slide radially inwards of the cone 11. Specifically, return springs are respectively wound in grooves at the upper end and the lower end of the expansion block, and when the cone 11 moves upwards under the pushing of the hydraulic cylinder, the expansion block 12 slides inwards along the radial direction under the action of the return springs to be reset. Then the blanking or feeding work can be carried out.

Compared with the extrusion vertical expander in the prior art, the expansion of the rim 1 is realized by adopting a drawing mode, no barrier is arranged above the cone 11, and the rim 1 loading and unloading manipulator is convenient to operate, so that the automation level of the process and the efficiency of loading and unloading are greatly improved, the labor intensity is reduced, and the production cost is reduced.

Example 2

The structure of the present embodiment is substantially the same as that of embodiment 1, except that:

as shown in fig. 2, the present embodiment includes a cushion block 15, the horizontal cross-sectional shape of the cushion block 15 is a sector, and the cushion block 15 is detachably disposed on the expansion block 12 for expanding the expansion radius of the expansion block 12.

Through setting up cushion 15, can improve vertical expanding unit's expansion radius to be applicable to the rim 1 processing of bigger internal diameter specification, improved this application to different specification rims 1's suitability.

More preferably, referring to fig. 3, the present embodiment further comprises a supporting device 20 for adjusting the height of the rim 1 when it is expanded, so as to ensure that the rim 1 is sleeved on the middle upper portion of the expanding block 12.

When the rim 1 with smaller thickness is processed, the rim 1 is placed on the support 10 and is close to the root of the expansion block 12, the cone 11 is generally not inserted into the rim 1 in the height direction, or only a small part of the cone 11 is inserted into the rim 1, namely, when the rim 1 with smaller thickness is processed, the center of the middle lower part of the expansion block 12 is in a hollow state, so that the bending deformation is more serious compared with the upper part of the expansion block, and under the condition, the hole expanded in the middle of the rim 1 has the defect of big top and small bottom (also called big-end-small phenomenon). According to the invention, the placing height of the rim 1 is increased through the supporting device 20, so that the rim 1 is ensured to be sleeved on the middle upper part of the expansion block 12, and the cone 11 completely penetrates through the rim 1 downwards in the height direction during expansion, thereby avoiding the bending deformation of the expansion block 12 and further avoiding the big-small head defect of the reaming of the rim 1.

Wherein the supporting device 20 comprises a supporting ring 21 and a height adjusting mechanism 22; the support ring 21 is sleeved outside the expansion block 12 in a height-adjustable and low-sleeved mode, and the height adjusting mechanism 22 is used for adjusting the height of the support ring 21. The height adjusting mechanism has many forms, such as an electric, pneumatic or hydraulic driven telescopic mechanism, etc., or a motor and screw nut transmission mechanism, etc., which are all the prior art and will not be described herein.

The form of the support device 20 is not limited, and it is simpler to provide a plurality of support rings 21 of different heights so as to be suitable for rims 1 of different thickness (width) specifications.

Example 3

As shown in fig. 4 to 6, the present embodiment discloses a processing apparatus with the above vertical expansion device, which includes: a delivery channel 200, a first vertical expansion means 110 and a second vertical expansion means 120; a first feeding station 111 and a first discharging station 112 are arranged on two sides of the first vertical expansion device 110; a second feeding station 121 and a second discharging station 122 are disposed at both sides of the second vertical type expanding device 120.

The conveyance channel 200 includes:

a feeding station 210 and a material returning station 260 which are respectively arranged at two ends;

a first feeding passage 220 connecting the feeding station 210 and the first feeding station 111;

a first blanking channel 240 connecting the first blanking station 112 and the material return station 260;

a second feeding passage 230 connecting the feeding station 210 and the second feeding station 121;

a second blanking channel 250 connecting the second blanking station 122 and the material return station 260;

the feeding station 210 is provided with a channel switching mechanism for guiding the rim 1 on the feeding station 210 to selectively enter the first feeding channel 220 or the second feeding channel 230.

Specifically, the channel switching mechanism in this embodiment is a gate mechanism that selectively closes or opens the first feeding channel 220 or the second feeding channel 230.

The machining equipment comprises control units such as a CUP (compute unified processing Unit) and a single chip microcomputer, the gate mechanism comprises a gate 270 and a swing mechanism (not shown) for driving the gate 270 to swing left and right, such as a stepping motor or a steering engine, the control unit is connected with the swing mechanism, the gate 270 is controlled by the swing mechanism to close the first feeding channel 220 or the second feeding channel 230, and accordingly the rim 1 is guided to enter the second feeding channel 230 or the first feeding channel 220.

In this embodiment, the feeding station 210 is provided with a lifting device for lifting the rim, which includes a lifting table and a lifting cylinder, for lifting and feeding the rim into the feeding channel.

A first feeding mechanism is arranged on the first feeding station 111, and a first discharging mechanism is arranged on the first discharging station 112; a second feeding mechanism is arranged on the second feeding station 121, and a second discharging mechanism is arranged on the second discharging station 122.

The feeding mechanism is used for sleeving the rim 1 before expansion on the expansion block 12; the blanking mechanism is used for taking the expanded rim 1 off the expansion block 12. In this embodiment, the feeding and discharging mechanisms are both double-station feeding and discharging mechanisms.

As shown in fig. 5, the feeding mechanism 101 includes: the feeding clamping mechanism and the feeding conveying mechanism; the blanking mechanism 102 includes: blanking clamping mechanism and blanking conveying mechanism.

The clamping mechanism is in a plurality of forms and generally comprises two clamping parts which are arranged in bilateral symmetry, the two clamping parts are relatively close to or far away from each other under the driving of the driving mechanism, and a clamping opening between the two clamping parts is opened or closed to clamp or put down the rim 1. The driving mechanism can be a pneumatic, hydraulic or pneumatic telescopic mechanism, or a driving motor and a gear transmission mechanism. Wherein preferably, the clamping mechanism comprises: a gear and two racks; the two racks are respectively connected with the two clamping parts, and the two racks and the two clamping parts are synchronously driven to move through the driving motor and the gear. The clamping mechanism realizes the synchronous clamping function of the clamping hands by utilizing the same group of gear rack mechanisms, ensures that the center of a workpiece clamped every time is the center of the clamping mechanism, and is suitable for various rims 1 with different specifications.

The conveying mechanism of the feeding and blanking mechanism comprises: horizontal conveying mechanism and lifting conveying mechanism. The conveying mechanism is prior art and generally comprises: the device comprises a base, a guide rail and a driving mechanism, wherein the driving mechanism can be a telescopic mechanism, a driving motor, a lead screw nut transmission mechanism and the like. The lifting and conveying mechanism in the embodiment is a cylinder or a hydraulic cylinder.

As shown in fig. 5, the conveying passage 200 in this embodiment is obliquely arranged for the rim 1 to automatically roll in the direction from the feeding station 210 to the discharging station 260.

The conveying channel 200 is obliquely arranged, so that the rim 1 rolls from the feeding end to the material returning direction by the gravity of the rim, and the production cost is greatly reduced.

In addition, the first feeding station 111 and the second feeding station 121 are respectively provided with a feeding turnover mechanism 103; material loading tilting mechanism 103 includes: the feeding turnover plate and the feeding turnover driving mechanism; the feeding turning plate is used for receiving the rolled rim 1, and the feeding turning driving mechanism is used for driving the feeding turning swing to further level the rim 1.

After the rim 1 is flatly placed, the feeding mechanism clamps the rim 1, and then conveys the rim 1 to an expansion station of the expansion device, namely, the rim 1 is sleeved outside the expansion block 12, namely, on the support 10.

The first blanking station 112 and the second blanking station 122 are respectively provided with a blanking turnover mechanism 104; unloading tilting mechanism includes: the blanking turnover plate and the blanking turnover driving mechanism;

the blanking overturning driving mechanism is used for driving the blanking to overturn and swing, so that the flat rim 1 is erected, and the erected rim 1 rolls to the material returning station 260 along the first blanking channel 240 or the second blanking channel 250.

The blanking mechanism clamps the expanded rim 1, the rim 1 is horizontally placed on a blanking turning plate, the blanking turning plate is turned under the driving of the blanking turning driving mechanism so as to erect the rim 1, and the rear rim 1 rolls to the material returning station 260 along a blanking channel.

Preferably, the turning plate is pivoted on a frame structure such as a rack, the turning driving mechanism can be a telescopic rod piece, and two ends of the telescopic rod piece are respectively hinged with the turning plate and the rack, so that the turning of the turning plate can be realized. Of course, the turnover driving mechanism can also be in the form of a motor, a speed reduction transmission mechanism and the like.

The turning plate is preferably vertically provided with a plurality of limiting rods arranged at intervals and used for bearing the rim 1 or limiting the rim 1, so that the turning plate is prevented from falling in the turning process.

The two expansion devices are arranged on the two sides of the conveying channel 200, so that the occupied space is small, the expansion devices can share one set of hydraulic or pneumatic system 3, corresponding channels can be switched according to product specifications when different types of products are produced, the space of a production line workshop is saved, the expansion of rims of different specifications and various types can be met, the expansion of products of various types is realized, the occupied space is small, the efficiency is high, and the cost is low.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical stent, comprising: the device comprises a support, a cone, an expansion block and a telescopic actuating mechanism;

2. The vertical stent of claim 1, further comprising a spacer having a fan-shaped horizontal cross-sectional shape, the spacer being detachably provided on the stent for enlarging the expansion radius of the stent.

3. The stand expansion device of claim 1, further comprising a support means for adjusting the height of the rim when it is expanded to ensure that the rim fits over the middle and upper portion of the expansion block.

4. The vertical stent of claim 3, wherein the support device comprises a support ring and a height adjustment mechanism;

5. The vertical stent of claim 1, further comprising a feeding mechanism and a discharging mechanism;

6. The vertical stent of claim 5, wherein the feed mechanism comprises: the feeding clamping mechanism and the feeding conveying mechanism; the unloading mechanism includes: blanking clamping mechanism and blanking conveying mechanism.

7. A processing apparatus with the vertical expansion device of claim 5, characterized in that it comprises: the conveying channel, the first vertical expansion device and the second vertical expansion device;

the transfer passage includes:

8. The processing apparatus according to claim 7, wherein the passage switching mechanism is a gate mechanism that selectively closes or opens the first feeding passage or the second feeding passage.

9. The processing plant according to claim 7, characterized in that the conveying channel is arranged obliquely for automatic rolling of the wheel rims from the feed station to the return station.

10. The processing equipment as claimed in claim 9, wherein the first feeding station and the second feeding station are respectively provided with a feeding turnover mechanism; material loading tilting mechanism includes: the feeding turnover plate and the feeding turnover driving mechanism; the feeding turnover plate is used for receiving a rolled rim, and the feeding turnover driving mechanism is used for driving the feeding turnover swing to rotate so as to level the rim;

the first blanking station and the second blanking station are respectively provided with a blanking turnover mechanism; unloading tilting mechanism includes: the blanking turnover plate and the blanking turnover driving mechanism;