CN116513721A - Ladder material loading machine of thermos cup bottom - Google Patents

Abstract

The invention discloses a step feeding machine for the cup bottom of a vacuum cup, which comprises a lifting bracket, a first-fourth-stage push plate, a first-third-stage fixing plate, a chute, a second-stage material dividing plate, a third-stage material dividing plate, a first-stage baffle and a second-stage baffle, wherein the top ends of the push plate, the material dividing plate and the fixing plate of each stage are inclined planes with high front and low rear, the outer port of the chute is provided with a material dividing and directing device, and the material dividing and directing device comprises a material divider and a directing device. The step feeding machine for the vacuum cup bottom has the advantages of simple structure and low noise, can separate materials, can avoid the blocking of a material separating opening, can separate stacked cup bottoms, can control the direction of the cup bottom entering the conveying line to be the upward or downward direction of the opening end, and perfectly solves the material separating problem of the vacuum cup bottom.

Description

Ladder material loading machine of thermos cup bottom

Technical Field

The invention relates to a step feeding device for a vacuum cup bottom.

Background

In the vacuum cup manufacturing industry, along with the maturity of the robot technology and the reduction of the cost, the automation degree of the vacuum cup manufacturing industry is greatly improved, the labor reduction and the synergy are realized, the labor cost is reduced, and the sustainable development of enterprises is ensured to be protected.

With the continuous promotion of automation, the projects of people reduction and synergy are difficult to excavate, the technology is high, the conception is ingenious, the bottleneck is possibly broken, for example, the feeding and discharging of a plurality of machines are difficult to solve, the machines can not reduce people although the assembly actions are completed, and the machines are not necessarily faster than people, so that the original purpose of robot replacement is lost, the feeding and discharging of the machines are solved, and the automation of the machines is successful for the most. At present, the feeding modes of the machine are various, and a proper feeding method is adopted in a targeted manner mainly according to different shapes of products. And (3) feeding by a vibration disc: the electromagnetic vibration is utilized to drive the material to move along a prescribed route and to straighten the gesture, and finally the material is fed, and the mode is only suitable for feeding small pieces with less complex shapes, and has the defect of larger noise; and (3) feeding the tray: the materials are placed on the tray in advance or in the previous working procedure, and the materials are placed on the tray in order to wait for feeding, so that the defects are poor in universality, and the effects of reducing people and increasing efficiency are not obvious unless the materials are placed in the previous working procedure by the way; feeding on a conveying line: the method is suitable for conveying the intermediate coherent materials in the production line, and has the defect that other methods are available for initial feeding; step feeding: the structure is simple, the applicability is poor, and the device is only suitable for a cylindrical tubular object which is not too long. The existing machine feeding technology can be seen in a forging device capable of realizing automatic feeding for a rotor bracket with the application number of 202221601814.7 and a feeding mechanism for conveying long bolts with the application number of 202120853706.8.

The existing metal thermos cup comprises an inner container and a shell, wherein the shell is basically formed by welding a cup bottom 7 (also called a bottom cover) at the bottom end of a shell body; the cup bottom is basically circular and disc-shaped, the upper end of the cup bottom is an open end 7-1, the outer wall of the open end is not provided with an arc angle, and the outer wall of the lower end of the cup bottom is provided with a lower arc 7-2 (see figure 1). In the manufacturing process of the vacuum cup, post-processing and other treatments are needed to be carried out on the cup bottom, and at present, two modes are adopted for feeding the cup bottom: firstly, manual feeding is performed, operators are hard to stack the cup bottoms one by one into a cylinder and put the cylinder on a feeding frame, the quantity is large, most of working time is occupied, the cup bottoms which are not easy to separate are stacked together due to gravity and cannot be separated, a plurality of cup bottoms can be detected and blown off by a machine, waste is caused, efficiency is reduced, and the edge of the cup bottom is sharp and easy to hurt hands; secondly, vibration dish material loading is because the bottom of cup is the sheetmetal, and bulky, needs very big vibrating force, and the sheetmetal striking noise that produces is very big especially, seriously influences the health of the heart, and operating personnel is difficult to bear, and the feed inlet is relatively easy to block in addition, and especially some stacks up closely bottom of cup vibration dish and can't separate.

Disclosure of Invention

The invention aims to provide a stepped feeding machine for the cup bottoms of the thermos cups, which has the advantages of simple structure and low noise, can separate materials, can avoid the blocking of a material separating opening, can separate stacked cup bottoms, can control the direction of the cup bottoms entering a conveying line to be the upward or downward direction of an opening end, and perfectly solves the material separating problem of the cup bottoms of the thermos cups.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the step feeding machine for the vacuum cup bottom comprises a lifting bracket arranged at the bottom of a frame, wherein a first-stage push plate, a second-stage push plate, a third-stage push plate and a fourth-stage push plate are sequentially arranged on the lifting bracket from front to back, a first-stage fixing plate is arranged at the rear side of the first-stage push plate, a second-stage fixing plate is arranged at the rear side of the second-stage push plate, a third-stage fixing plate is arranged at the rear side of the third-stage push plate, a chute is formed by enclosing a front baffle and a rear baffle, a second-stage material dividing plate is arranged between the second-stage push plate and the second-stage fixing plate, a third-stage material dividing plate is arranged between the third-stage push plate and the third-stage fixing plate, the second-stage material dividing plate and the third-stage material dividing plate are arranged on corresponding vertical sliding rods in a sliding manner, the bottom ends of the vertical sliding rods are fixedly arranged on corresponding push plate bosses, the vertical sliding rods between the two push plate bosses and the corresponding distributing plates are provided with springs for supporting the corresponding distributing plates to lift, the front part above the second-level fixing plate is provided with a first-level baffle, the front part above the third-level fixing plate is provided with a second-level baffle, the minimum gap between the first-level baffle and the second-level fixing plate is at least greater than the thickness of two cup bottoms, the minimum gap between the second-level baffle and the third-level fixing plate is greater than the thickness of one cup bottom and less than the thickness of two cup bottoms, the top ends of the push plate, the distributing plates and the fixing plates at each level are inclined planes with high front and low back, and when the lifting support is located at the lowest position, the inclined plane bottom edge of the storage bin is connected with the inclined plane at the top end of the first-level push plate so that the cup bottom in the storage bin slides to the inclined plane at the top end of the first-level push plate; when the lifting support is positioned at the highest position, all stages of pushing plates are lifted to the highest position at the same time, and the top inclined plane of the first stage of pushing plate is connected with the top inclined plane of the first stage of fixing plate to form a first sliding inclined plane of the cup bottom; the secondary material separating plate is lifted under the action of the spring, the boss of the secondary material separating plate is stopped on the limiting table of the secondary fixing plate, and the top inclined planes of the secondary pushing plate, the secondary material separating plate and the secondary fixing plate are sequentially connected to form a second sliding inclined plane of the cup bottom; the third-stage material distributing plate is lifted under the action of the spring, the boss of the third-stage material distributing plate is stopped on the limit table of the third-stage fixing plate, and the top inclined planes of the third-stage pushing plate, the third-stage material distributing plate and the third-stage fixing plate are sequentially connected to form a third sliding inclined plane of the cup bottom; the top inclined plane of the fourth-stage push plate is connected with the upper edge of the front baffle plate so as to enable the cup bottom to slide to the chute; when the lifting support descends to a preset height from the highest position, the second-stage push plate limiting table is overlapped with the second-stage material dividing plate boss, the third-stage push plate limiting table is overlapped with the third-stage material dividing plate boss, and as the lifting support continues to descend, the second-stage push plate limiting table drives the second-stage material dividing plate to move downwards so that the cup bottom supported on the second-stage material dividing plate descends to the top inclined plane of the second-stage push plate, and the third-stage push plate limiting table drives the third-stage material dividing plate to move downwards so that the cup bottom supported on the third-stage material dividing plate descends to the top inclined plane of the third-stage push plate; the whole chute is inclined forwards, the width of the chute is matched with the thickness of the cup bottom, the inner end of the bottom surface of the chute is high, the outer end of the bottom surface of the chute is low, so that the cup bottom rolls from inside to outside, and a material distributing and directing device is arranged at the outer port of the chute; the feed director comprises a distributor and a director, wherein the distributor comprises: a material distribution inclined plane connected with the front side wall of the chute and a material distribution boss connected with the bottom surface of the chute; the orienter comprises: the cup bottom rolling guide groove is connected to the outer end of the distributor, and the orientation body which is arranged below the cup bottom rolling guide groove and can adjust the position along the front-back direction and consists of two inclined planes.

The upper end of the front baffle plate is a sharp top, and the upper part of the rear baffle plate is inclined backwards to form an opening with a large upper part and a small lower part, wherein the opening is used for leading the bottom of the cup to fall into the chute.

The bottom surface of feed bin is equipped with the vibrator, through vibrations in order to make the cup bottom that the card is motionless remove to one-level push pedal, perhaps tentatively shake the cup bottom and scatter.

The bottom surface of feed bin is equipped with a plurality of metal slag filtration pore, and the below of feed bin is equipped with the slag receiving dish.

The lifting support is driven by a lifting mechanism, and the lifting mechanism comprises a lifting screw rod and a lifting motor.

A feed back track is arranged below the distributor, the rear part of the feed back track is high and the front part of the feed back track is low, and the lowest part of the feed back track is connected with the storage bin.

Compared with the prior art, the invention has the beneficial effects that: due to the adoption of the technical scheme, the secondary material distributing plate is arranged between the secondary push plate and the secondary fixing plate, the tertiary material distributing plate is arranged between the tertiary push plate and the tertiary fixing plate, the cup bottoms which are thicker in layers or vertical cannot pass through the primary baffle and the secondary baffle at the positions of the secondary push plate and the tertiary push plate, after the secondary push plate and the tertiary push plate rise to the highest stop moment, part of the cup bottoms pass through the primary baffle and the secondary baffle, the blocked cup bottoms are supported by the secondary material distributing plate and the tertiary material distributing plate, when the lifting mechanism drives the secondary push plate and the tertiary push plate to start to move downwards, the secondary material distributing plate and the tertiary material distributing plate continue to support the corresponding cup bottoms under the action of the springs, after the secondary push plate and the tertiary push plate drive the corresponding material distributing plate to move downwards, the blocked cup bottoms are crashed on the corresponding descending push plate under the action of gravity acceleration, the scattered cup bottoms are driven by the lifting mechanism to be conveyed to the secondary inclined plane and the third inclined plane again, and the process is repeated until the cup bottoms can pass through the primary baffle and the secondary baffle respectively, so that the material distributing function is realized; the elastic material distributing plate is simple and ingenious in structure, can be used for distributing materials successfully, can prevent the material distributing function from being lost due to the fact that the material distributing opening is blocked, can enable the cup bottom which does not pass through to fall from a high place to be separated, and perfectly solves the material distributing problem of the cup bottom of the vacuum cup. By adopting the technical scheme, the chute is arranged at the rear side of the four-stage push plate, the material distributing director is arranged at the outer port of the chute, the structure can enable the cup bottom with a proper inclination angle to roll to the material distributing inclined plane, the opening end of the cup bottom faces the material distributing inclined plane (inwards), the outer wall of the opening end has no arc angle, the cup bottom can be supported by the material distributing boss and can not fall to the material returning track, the opening end of the cup bottom is outwards, and the edge of the bottom end of the cup bottom is provided with the arc angle, and the arc angle can not be supported by the material distributing boss and can fall to the material returning track to the material bin, so the material distributor can distribute the cup bottom only through the cup bottom with the opening end inwards; the cup bottom with an inward opening end enters a cup bottom rolling guide groove with a larger front end opening after passing through the distributor, the cup bottom rolling guide groove ensures that the cup bottom rolls vertically, when the cup bottom rolls to the outer end part of the cup bottom rolling guide groove without a groove bottom, the cup bottom falls onto an orientation body under the action of gravity, the orientation body is formed by two slopes, and the position of the orientation body and the cup bottom rolling guide groove is adjusted along the front-back direction, so that the cup bottom can be adjusted to fall onto one slope of the orientation bodies, and the direction of the cup bottom entering a conveying line can be controlled to be whether the opening end is upward or downward; the distributing and orienting device has a very simple structure, and can efficiently complete the distribution and orientation of the cup bottom without any power.

The method has the further beneficial effects that: the lifting support is driven by a lifting mechanism, the lifting mechanism comprises a lifting screw rod and a lifting motor, and the lifting screw rod is adopted to reduce the height of the whole machine compared with an air cylinder, so that feeding is convenient.

Drawings

FIG. 1 is a schematic view of the structure of a cup bottom;

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a schematic view of the lifting frame in FIG. 2 in a lowest position;

FIG. 4 is a schematic view of the lifting frame of FIG. 2 in a top position;

FIG. 5 is a schematic view of the structure of FIG. 2 at another angle;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the structure of the second-stage separating plate (third-stage separating plate) in FIG. 2 in the lowest position;

FIG. 8 is a schematic view of the structure of the secondary separator in FIG. 2 with the highest position and the secondary pusher lowered by a predetermined height;

FIG. 9 is a schematic diagram of the structure of the secondary pushing plate in FIG. 2 driving the secondary separating plate to move downward;

FIG. 10 is a schematic view of the dispensing orienter of FIG. 2 in dispensing, orientation;

FIG. 11 is a cross-sectional view of the bottom rolling guide channel and orienting body of FIG. 10;

fig. 12 is a schematic view of a lifting bracket driven by an air cylinder.

The technical features represented by the reference numerals in the figures are as follows:

the device comprises a bin 0, a primary push plate 1, a primary fixed plate 11, a secondary push plate 2, a secondary material separating plate 2-1, a secondary material separating plate boss 2-2, a secondary push plate limiting table 2-3, a secondary push plate boss 2-4, a secondary fixed plate 22, a secondary fixed plate limiting table 22-1, a primary baffle 222, a tertiary push plate 3, a tertiary material separating plate 3-1, a tertiary material separating plate boss 3-2, a tertiary push plate limiting table 3-3, a tertiary push plate boss 3-4, a tertiary fixed plate 33, a tertiary fixed plate limiting table 33-1, a secondary baffle 333, a quaternary push plate 4, a lifting bracket 5, a lifting mechanism 6, a lifting screw 6-1, a lifting motor 6-2, a cup bottom 7, an open end 7-1, a lower end arc 7-2, a spring 8, a chute 9, a front baffle 9-1, a rear baffle 9-2, a distributor 10, a director 12, a distributing inclined plane 10-1, a distributing boss 10-2, a director 12, a cup bottom rolling guide groove 12-1, a director 12-2, a director 12, a director 13-13, a return tray 16 and a vibration cylinder 16.

Description of the embodiments

In order to make the technical scheme of the present invention clearer, the present invention will be described in detail with reference to fig. 1 to 12. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

The invention relates to a ladder feeder at the bottom of a vacuum cup, which comprises a lifting bracket 5 arranged at the bottom of a frame, wherein a first-stage push plate 1, a second-stage push plate 2, a third-stage push plate 3 and a fourth-stage push plate 4 are sequentially arranged on the lifting bracket 5 from front to back, a first-stage fixing plate 11 is arranged at the rear side of the first-stage push plate, a second-stage fixing plate 22 is arranged at the rear side of the second-stage push plate, a third-stage fixing plate 33 is arranged at the rear side of the third-stage push plate, a sliding chute 9 is arranged at the rear side of the fourth-stage push plate 4, the sliding chute 9 is surrounded by a front baffle 9-1 and a rear baffle 9-2, a second-stage distributing plate 2-1 is arranged between the second-stage push plate 2 and the second-stage fixing plate 22, a third-stage distributing plate 3-1 is arranged between the third-stage push plate 3 and the third-stage fixing plate 33 and is arranged on corresponding vertical sliding rods in a sliding manner, the bottom ends of the vertical slide bars are fixedly arranged on the corresponding push plate bosses 2-4 and 3-4, springs 8 for supporting the corresponding distributing plates to lift are arranged on the vertical slide bars between the two push plate bosses 2-4 and 3-4 and the corresponding distributing plates, a first-stage baffle 222 is arranged at the upper front part of the second-stage fixing plate 22, a second-stage baffle 333 is arranged at the upper front part of the third-stage fixing plate 33, the minimum gap between the first-stage baffle 222 and the second-stage fixing plate 22 is at least greater than the thickness of two cup bottoms 7, the minimum gap between the second-stage baffle 333 and the third-stage fixing plate 33 is greater than the thickness of one cup bottom 7 and less than the thickness of two cup bottoms 7, the top ends of the push plate, the distributing plates and the fixing plates are inclined planes with high front and low back, when the lifting bracket 5 is positioned at the lowest position, the inclined plane bottom edge of the storage bin 0 is connected with the inclined plane of the top end of the first-stage push plate 1, so that the cup bottom 7 in the feed bin 0 slides to the top inclined plane of the first-stage push plate 1; when the lifting bracket 5 is positioned at the highest position, all the stages of pushing plates 1, 2, 3 and 4 are lifted to the highest position at the same time, and the top inclined plane of the first stage of pushing plate 1 is connected with the top inclined plane of the first stage of fixing plate 11 to form a first sliding inclined plane of the cup bottom 7; the secondary material separating plate 2-1 is lifted under the action of the spring 8, the secondary material separating plate boss 2-2 is stopped at the secondary fixed plate limiting table 22-1, and the top inclined planes of the secondary push plate 2, the secondary material separating plate 2-1 and the secondary fixed plate 22 are sequentially connected to form a second sliding inclined plane of the cup bottom 7; under the action of the spring 8, the three-stage material separating plate 3-1 is lifted, the boss 3-2 of the three-stage material separating plate is stopped on the three-stage fixing plate limiting table 33-1, and the top inclined planes of the three-stage push plate 3, the three-stage material separating plate 3-1 and the three-stage fixing plate 33 are sequentially connected to form a third sliding inclined plane of the cup bottom 7; the top inclined surface of the fourth-stage push plate 4 is connected with the upper edge of the front baffle plate 9-1 so as to enable the cup bottom 7 to slide to the chute 9; when the lifting support 5 descends to a preset height from the highest position, the secondary push plate limiting table 2-3 is overlapped with the secondary material dividing plate boss 2-2, the tertiary push plate limiting table 3-3 is overlapped with the tertiary material dividing plate boss 3-2, along with the continuous descending of the lifting support 5, the secondary push plate limiting table 2-3 drives the secondary material dividing plate 2-1 to move downwards so that the cup bottom 7 supported on the secondary material dividing plate 2-1 descends to the top inclined surface of the secondary push plate 2, and the tertiary push plate limiting table 3-3 drives the tertiary material dividing plate 3-1 to move downwards so that the cup bottom 7 supported on the tertiary material dividing plate 2-1 descends to the top inclined surface of the tertiary push plate 3 (the working principle of the tertiary material dividing plate is the same as that of the secondary material dividing plate, and corresponding figures can be seen in the secondary material dividing plate); the whole chute 9 is inclined forwards, the width of the chute 9 is matched with the thickness of the cup bottom 7 (preferably, the width of the chute 9 is slightly larger than the thickness of one cup bottom 7, preferably, the thickness of the chute is 1mm-2mm larger than the thickness of one cup bottom 7), the inner end of the bottom surface is high, the outer end of the bottom surface is low, so that the cup bottom 7 rolls from inside to outside, and a material distributing and directing device is arranged at the outer port of the chute 9; the dispensing director comprises a dispenser 10 and a director 12, the dispenser 10 comprising: a material distribution inclined plane 10-1 connected with the front side wall of the chute 9 and a material distribution boss 10-2 connected with the bottom surface of the chute 9; the director 12 includes: the cup bottom rolling guide groove 12-1 connected to the outer end of the distributor 10, and the orientation body 12-2 which is arranged below the cup bottom rolling guide groove 12-1 and can be adjusted along the front-back direction and consists of two inclined planes, wherein a conveying line for conveying the cup bottom 7 is arranged below the orientation body 12-2.

Preferably, the upper end of the front baffle 9-1 is pointed, and the upper part of the rear baffle 9-2 is inclined backward to form a V-shaped opening with a large upper part and a small lower part for the guiding cup bottom 7 to fall into the chute 9.

Preferably, the bottom surface of the bin 0 is provided with a vibrator 14, and the bottom 7 of the cup 7 which is blocked is moved to the first-stage push plate 1 by vibration, or the bottom 7 is primarily vibrated and dispersed. Preferably, the power of the vibrator 14 is smaller, so that the cup bottom 7 can move on the bottom surface (inclined surface) of the bin 0, and larger noise is avoided.

Preferably, the bottom surface of the storage bin 0 is provided with a plurality of metal slag filtering holes, and a slag receiving disc 15 is arranged below the storage bin 0. Because the cup bottom 7 carries more metal slag after the metal forming, the metal slag can fall onto the slag receiving disc 15 from the filtering holes on the bottom surface of the feed bin 0 after vibration, and the metal slag is prevented from being accumulated in the feed bin 0.

Preferably, the lifting bracket 5 is driven by a lifting mechanism 6, and the lifting mechanism 6 comprises a lifting screw rod 6-1, a lifting motor 6-2 and a control device for controlling the operation of the lifting motor 6-2. Compared with the air cylinder 16, the lifting screw rod 6-1 can reduce the height of the whole machine and is convenient for feeding. A feed back track 13 is arranged below the distributor 10, the rear part of the feed back track 13 is high and the front part is low, and the lowest part of the feed back track is connected with the storage bin 0.

In each of the above technical solutions, the cup bottom 7 is in a circular dish shape (see fig. 1), the upper end of the cup bottom is an open end 7-1, the outer wall of the open end has no arc angle, and the outer wall of the lower end of the cup bottom has a lower arc 7-2.

The design difficulty, how to sort, traditional feed opening let the material that accords with the requirement pass through limit methods such as limit for height limit for width, and the limit of exceeding is limited in the feed opening, can't pass through, and the problem comes, and traditional feed opening is fixed, and the limit of exceeding is limited in the feed opening, and oneself is too long, also can block the feed opening simultaneously, lets other compliance also long. Therefore, the function of material distribution is lost, so that how to solve the failure problem becomes a design weight, and the problem that the work is half of that is solved, and failure is implied when the work is not solved. For this reason, various structures have been tried to avoid this drawback. The invention adopts the technical scheme that the inventor repeatedly compares the applicability of various feeding modes through long-time research, has advantages and disadvantages, decides to increase the inclination of the surface of a supporting object on the basis of stepped feeding only suitable for a cylindrical tubular object which is not too long, enables the cylindrical tubular object which can only be rolled to be used originally through sliding movement, can also be suitable for objects (cup bottoms) with other shapes, simultaneously adds a material dividing plate at different layers, sorts and filters various overlapped cup bottoms layer by layer, and ensures that a single cup bottom with single layer and correct direction can be smoothly selected finally.

Claims (6)

1. The utility model provides a ladder material loading machine at bottom of thermos cup, includes lifting support (5) that sets gradually one-level push pedal (1), second grade push pedal (2), tertiary push pedal (3) and fourth grade push pedal (4) in proper order in the past on lifting support (5), and one-level push pedal rear side is equipped with one-level fixed plate (11), and second grade push pedal rear side is equipped with second grade fixed plate (22), and tertiary push pedal rear side is equipped with tertiary fixed plate (33), and fourth grade push pedal (4) rear side is equipped with spout (9), spout (9) are enclosed by preceding baffle (9-1) and backplate (9-2), its characterized in that: a secondary material distributing plate (2-1) is arranged between a secondary push plate (2) and a secondary fixing plate (22), a tertiary material distributing plate (3-1) is arranged between a tertiary push plate (3) and a tertiary fixing plate (33), the secondary material distributing plate (2-1) and the tertiary material distributing plate (3-1) are arranged on corresponding vertical sliding rods in a sliding mode, the bottom ends of the vertical sliding rods are fixedly arranged on corresponding push plate bosses (2-4, 3-4), springs (8) for supporting the corresponding material distributing plate to lift are arranged on the vertical sliding rods between the two push plate bosses (2-4, 3-4) and the corresponding material distributing plate, a first-stage baffle plate (222) is arranged at the upper front part of the secondary fixing plate (22), a second-stage baffle plate (333) is arranged at the upper front part of the tertiary fixing plate (33), the minimum gap between the first-stage baffle plate (222) and the secondary fixing plate (22) is at least larger than the thickness of two cup bottoms (7), the minimum gap between the second-stage baffle plate (333) and the tertiary fixing plate (33) is larger than the thickness of one cup bottom (7) and is smaller than the thickness of the two cup bottoms (7) and is equal to the top end of each cup bottom (7) and is lower than the top end of the upper-stage fixing plate and lower than the upper end of the upper plate,

when the lifting support (5) is positioned at the lowest position, the inclined plane bottom edge of the storage bin (0) is connected with the top inclined plane of the first-stage push plate (1) so that the cup bottom (7) in the storage bin (0) slides to the top inclined plane of the first-stage push plate (1);

when the lifting support (5) is positioned at the highest position, all stages of pushing plates (1, 2, 3 and 4) are lifted to the highest position at the same time, and the top inclined plane of the first stage of pushing plate (1) is connected with the top inclined plane of the first stage of fixing plate (11) to form a first sliding inclined plane of the cup bottom (7); the secondary material separating plate (2-1) is lifted under the action of the spring (8), the boss (2-2) of the secondary material separating plate is stopped on the limiting table (22-1) of the secondary fixing plate, and the inclined planes at the top ends of the secondary pushing plate (2), the secondary material separating plate (2-1) and the secondary fixing plate (22) are sequentially connected to form a second sliding inclined plane of the cup bottom (7); under the action of a spring (8), the three-level material separating plate (3-1) is lifted, the boss (3-2) of the three-level material separating plate is stopped at the three-level fixing plate limiting table (33-1), and the top inclined planes of the three-level pushing plate (3), the three-level material separating plate (3-1) and the three-level fixing plate (33) are sequentially connected to form a third sliding inclined plane of the cup bottom (7); the top inclined surface of the fourth-stage push plate (4) is connected with the upper edge of the front baffle plate (9-1) so as to enable the cup bottom (7) to slide to the chute (9);

when the lifting support (5) falls to a preset height from the highest position, the secondary push plate limiting table (2-3) is overlapped with the secondary material dividing plate boss (2-2), the tertiary push plate limiting table (3-3) is overlapped with the tertiary material dividing plate boss (3-2), along with the continuing falling of the lifting support (5), the secondary push plate limiting table (2-3) drives the secondary material dividing plate (2-1) to move downwards so that the cup bottom (7) supported on the secondary material dividing plate (2-1) falls to the top inclined surface of the secondary push plate (2), and the tertiary push plate limiting table (3-3) drives the tertiary material dividing plate (3-1) to move downwards so that the cup bottom (7) supported on the tertiary material dividing plate (2-1) falls to the top inclined surface of the tertiary push plate (3);

the whole chute (9) is inclined forwards, the width of the chute (9) is matched with the thickness of the cup bottom (7), the inner end of the bottom surface of the chute is high, the outer end of the bottom surface of the chute is low, so that the cup bottom (7) rolls from inside to outside, and a material distributing and directing device is arranged at the outer port of the chute (9); the material dividing and directing device comprises a material dividing device (10) and a directing device (12), wherein the material dividing device (10) comprises: a material distribution inclined plane (10-1) connected with the front side wall of the chute (9) and a material distribution boss (10-2) connected with the bottom surface of the chute (9); the orienter (12) comprises: the cup bottom rolling guide groove (12-1) is connected to the outer end of the distributor (10), and the orientation body (12-2) which is arranged below the cup bottom rolling guide groove (12-1) and can be adjusted in position along the front-back direction and consists of two inclined planes.

2. The stair feeding machine for the bottom of the vacuum cup according to claim 1, wherein: the upper end of the front baffle plate (9-1) is a sharp top, and the upper part of the rear baffle plate (9-2) is inclined backwards to form an opening with a large upper part and a small lower part, which leads the cup bottom (7) to fall into the chute (9).

3. The stair feeding machine for the bottom of the vacuum cup according to claim 1, wherein: the bottom surface of feed bin (0) is equipped with vibrator (14), through vibrations in order to make the cup bottom (7) that block motionless remove to one-level push pedal (1), perhaps tentatively shake the cup bottom (7) loose.

4. The stair feeding machine for the bottom of the vacuum cup according to claim 1, wherein: the bottom surface of feed bin (0) is equipped with a plurality of metal slag filtration pore, and the below of feed bin (0) is equipped with and connects slag pan (15).

5. The stair feeding machine for the bottom of the vacuum cup according to claim 1, wherein: the lifting support (5) is driven by a lifting mechanism (6), and the lifting mechanism (6) comprises a lifting screw rod (6-1) and a lifting motor (6-2).

6. The stair feeding machine for the bottom of the vacuum cup according to claim 1, wherein: a feed back track (13) is arranged below the distributor (10), the feed back track (13) is high at the rear and low at the front, and the lowest part of the feed back track is connected with the storage bin (0).