A step feeding machine for the bottom of a thermos cup

Abstract

The present invention discloses a step feeder for the bottom of a thermos cup, comprising a lifting bracket arranged at the bottom of a frame, one to four push plates, one to three fixed plates, a slide, a two-stage material dividing plate and a three-stage material dividing plate, a first baffle and a second baffle, the tops of the push plates, the material dividing plates and the fixed plates at each level are inclined surfaces that are higher in the front and lower in the back, and a material dividing orientator is arranged at the outer end of the slide, and the material dividing orientator comprises a material divider and an orientator. The step feeder for the bottom of a thermos cup of the present invention has a simple structure and low noise, can not only divide materials, but also avoid the blocking of the material dividing port, and can also separate the stacked cup bottoms, and can control the direction of the cup bottom entering the conveyor line, whether the opening end is facing upward or downward, which perfectly solves the problem of dividing materials for the bottom of the thermos cup.

Description

Technical Field

[0001] The invention relates to a step feeding device for the bottom of a thermos cup. Background Art

[0002] In the thermos cup manufacturing industry, with the maturity of robot technology and the reduction of its cost, the degree of automation in the thermos cup manufacturing industry has been greatly improved, achieving the goal of reducing manpower and increasing efficiency, reducing labor costs, and safeguarding the sustainable development of enterprises.

[0003] With the continuous advancement of automation, it is difficult to explore projects that reduce manpower and increase efficiency. Only with high technology and ingenious ideas can the bottleneck be broken. For example, many machine loading and unloading are difficult to solve. Although the machine completes the assembly action, it cannot reduce manpower, and many machines are not necessarily faster than people, which loses the original intention of replacing people with machines. Therefore, if the loading and unloading of machines is solved, the automation of machines will be more than half successful. At present, there are many ways to load materials on machines, mainly according to the different appearances of products, and appropriate loading methods are used in a targeted manner. There are vibration plate loading: using electromagnetic vibration to drive the material to move and straighten the posture along the prescribed route, and finally reach the loading position. This method is only suitable for loading small parts with less complicated appearances, and the disadvantage is that the noise is large; there is pallet loading: the materials are placed neatly on the pallet in advance or in the previous process, waiting for loading. The disadvantage is poor versatility. Unless the materials are placed in the previous process, the reduction of manpower and the increase of efficiency are not obvious; conveyor line loading: suitable for the intermediate continuous material transportation of the assembly line, the disadvantage is that the initial loading still needs other methods; ladder loading: simple structure, the disadvantage is poor applicability, only suitable for cylindrical tubular objects that are not too long. For existing machine feeding technology, please refer to "A forging device for rotor bracket capable of automatic loading" with application number 202221601814.7 and "A feeding mechanism for long bolt transportation" with application number 202120853706.8.

[0004] The existing metal thermos cup includes an inner liner and an outer shell, wherein the outer shell is basically formed by welding a cup bottom 7 (also called a bottom cover) to the bottom end of the outer shell; the cup bottom is basically in the shape of a round disc, with an upper end being an open end 7-1, an outer wall of the open end having no arc angle, and an outer wall of the lower end having a lower end arc 7-2 (see Figure 1). In the process of making thermos cups, the bottom of the cup needs to be post-processed. At present, there are two ways to load the bottom of the cup: one is manual loading. The operator laboriously stacks the bottoms of the cups one by one into a tube and puts them on the loading rack. The quantity is large, which takes up most of the working time. Moreover, the bottoms of the cups that are finally separated are stacked together due to gravity and cannot be separated. Multiple bottoms of the cups will be blown off by the machine detection, causing waste and reducing efficiency. The edge of the bottom of the cup is sharp and easy to hurt the hands; the second is vibration plate loading. Because the bottom of the cup is a metal sheet and has a large volume, it requires a lot of vibration force. The impact noise of the metal sheet is particularly large, which seriously affects the physical and mental health. It is difficult for operators to bear it, and the feed port is easy to get stuck, especially some tightly stacked bottoms of the cups cannot be separated by the vibration plate. Summary of the invention

[0005] The purpose of the present invention is to provide a stepped feeding machine for the bottom of a thermos cup, which has a simple structure and low noise. It can not only separate the materials, but also avoid the separation port from being blocked and stuck. It can also separate the stacked cup bottoms and control the direction of the cup bottom entering the conveyor line with the open end facing up or down, thereby perfectly solving the problem of separating the materials at the bottom of the thermos cup.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A step loading machine for the bottom of a thermos cup comprises a lifting bracket arranged at the bottom of a frame, on which a first-level push plate, a second-level push plate, a third-level push plate and a fourth-level push plate are arranged in sequence from front to back, a first-level fixed plate is arranged at the rear side of the first-level push plate, a second-level fixed plate is arranged at the rear side of the second-level push plate, a third-level fixed plate is arranged at the rear side of the third-level push plate, and a slide groove is arranged at the rear side of the fourth-level push plate, the slide groove is surrounded by a front baffle and a rear baffle, a second-level material dividing plate is arranged between the second-level push plate and the second-level fixed plate, a third-level material dividing plate is arranged between the third-level push plate and the third-level fixed plate, the second-level material dividing plate and the third-level material dividing plate are slidably arranged on corresponding vertical sliding rods, the bottom ends of the vertical sliding rods are fixedly arranged on corresponding push plate bosses, and the two push plate bosses are connected to the corresponding material dividing plates A spring for supporting the corresponding material distribution plate to rise is arranged on the vertical sliding rod in the middle, a primary baffle is arranged on the upper front part of the secondary fixing plate, a secondary baffle is arranged on the upper front part of the third fixing plate, the minimum gap between the primary baffle and the secondary fixing plate is at least greater than the thickness of the bottoms of the two cups, the minimum gap between the secondary baffle and the third fixing plate is greater than the thickness of the bottom of one cup and less than the thickness of the bottoms of the two cups, the top ends of the push plates, material distribution plates and fixing plates at each level are inclined surfaces with a high front and a low back, when the lifting bracket is at the lowest position, the bottom edge of the inclined surface of the silo is connected with the top inclined surface of the first push plate, so that the bottom of the cup in the silo slides to the top inclined surface of the first push plate; when the lifting bracket is at the highest position, the push plates at each level are simultaneously raised to the highest position, and the top of the first push plate The end inclined surface is connected with the top inclined surface of the first-level fixed plate to form the first sliding inclined surface of the cup bottom; under the action of the spring, the second-level material dividing plate rises, and the boss of the second-level material dividing plate stops at the limiting platform of the second-level fixed plate, and the top inclined surfaces of the second-level push plate, the second-level material dividing plate, and the second-level fixed plate are connected in sequence to form the second sliding inclined surface of the cup bottom; under the action of the spring, the third-level material dividing plate rises, and the boss of the third-level material dividing plate stops at the limiting platform of the third-level fixed plate, and the top inclined surfaces of the third-level push plate, the third-level material dividing plate, and the third-level fixed plate are connected in sequence to form the third sliding inclined surface of the cup bottom; the top inclined surface of the fourth-level push plate is connected with the upper edge of the front baffle to make the cup bottom slide to the slide groove; when the lifting bracket descends from the highest position to a preset height, the second-level push plate limit platform and the second-level material dividing plate convex The three-stage push plate limiting platform is overlapped with the three-stage material dividing plate boss. As the lifting bracket continues to descend, the two-stage push plate limiting platform drives the two-stage material dividing plate to move downward, so that the cup bottom supported by the two-stage material dividing plate falls to the top inclined surface of the two-stage push plate. The three-stage push plate limiting platform drives the three-stage material dividing plate to move downward, so that the cup bottom supported by the three-stage material dividing plate falls to the top inclined surface of the three-stage push plate; the slide groove is tilted forward as a whole, the width of the slide groove is adapted to the thickness of the cup bottom, and the inner end of the bottom surface is higher than the outer end, so that the cup bottom rolls from the inside to the outside in it, and a material dividing orientator is provided at the outer end of the slide groove; the material dividing orientator includes a material divider and a orientator, and the material divider includes: a material dividing inclined surface connected with the front side wall of the slide groove, and a material dividing boss connected with the bottom surface of the slide groove;The orienter comprises: a cup bottom rolling guide groove connected to the outer end of the distributor, and an orienting body composed of two inclined surfaces arranged below the cup bottom rolling guide groove and capable of adjusting the position along the front-rear direction.

[0008] The upper end of the front baffle is a pointed top, and the upper part of the rear baffle is tilted backwards to form an opening that is larger at the top and smaller at the bottom to guide the cup bottom to fall into the chute.

[0009] A vibrator is installed on the bottom of the silo to move the stuck cup bottom to the first push plate or to initially shake the cup bottom apart.

[0010] The bottom surface of the silo is provided with a plurality of metal slag filter holes, and a slag receiving pan is provided below the silo.

[0011] The lifting bracket is driven by a lifting mechanism, and the lifting mechanism comprises a lifting screw rod and a lifting motor.

[0012] A material return track is arranged below the distributor, the material return track is higher at the back and lower at the front, and the lowest part of the material return track is connected with the silo.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: due to the adoption of the above technical scheme, a secondary material dividing plate is provided between the secondary push plate and the secondary fixed plate, and a third material dividing plate is provided between the third push plate and the third fixed plate. At the positions of the second and third push plates, the cup bottoms with thicker or vertical layers cannot pass through the first and second baffles. After the second and third push plates are raised to the highest position and paused for a moment, part of the cup bottoms pass through the first and second baffles, and the blocked cup bottoms are supported by the second and third material dividing plates. When the lifting mechanism drives the second and third push plates to start moving downward, the second and third material dividing plates continue to support the corresponding cup bottoms under the action of the springs, so that a drop is formed between the cup bottoms and the corresponding push plates. After the second and third level push plates drive the corresponding material dividing plates to move downward, the blocked cup bottom will hit the corresponding descending push plates under the action of gravity acceleration and be dispersed under the action of impact force. The dispersed cup bottom will be sent to the second and third sliding slopes again as the lifting mechanism drives the second and third level push plates to rise. The above process is repeated until the cup bottom can pass through the first and second level baffles respectively, thereby realizing the function of material dividing. The elastic material dividing plate has a simple and ingenious structure. It can not only successfully divide the materials, but also avoid losing the material dividing function due to the blocking of the material dividing port, and can also allow the cup bottom that has not passed through to fall from a high place and be separated, perfectly solving the problem of material dividing at the bottom of the thermos cup. Due to the adoption of the above technical solution, a slide groove is provided on the rear side of the four-stage push plate, and a material distribution orientator is provided on the outer end of the slide groove. This structure can make the cup bottom with an appropriate inclination angle roll to the material distribution slope. The opening end of the cup bottom faces the material distribution slope (inward), and because the outer wall of the opening end has no arc corner, it can be supported by the material distribution boss and will not fall onto the return track. The opening end of the cup bottom faces outward, because the lower end edge of the cup bottom has an arc corner, the arc corner cannot be supported by the material distribution boss, and thus it will fall onto the return track and return to the silo. Therefore, the distributor can distribute the cup bottom only through the cup bottom with the opening end facing inward; the cup bottom with the opening end facing inward After passing through the distributor, it enters the cup bottom rolling guide groove with a larger front end opening. The cup bottom rolling guide groove ensures the vertical rolling of the cup bottom. When the cup bottom rolls to the outer end of the cup bottom rolling guide groove where there is no groove bottom, the cup bottom falls onto the orienting body under the action of gravity. The orienting body is composed of two slopes. By adjusting the position of the orienting body and the cup bottom rolling guide groove along the front and rear directions, the cup bottom can be adjusted to fall on one of the slopes of the orienting body, thereby controlling the direction of the cup bottom entering the conveyor line with the open end facing up or down. The structure of the distributor orienting device is very simple, and the distribution and orientation of the cup bottom can be efficiently completed without any power.

[0014] A further beneficial effect is that the lifting bracket is driven by a lifting mechanism, which includes a lifting screw and a lifting motor. Compared with the use of a cylinder, the use of a lifting screw can reduce the height of the entire machine and facilitate loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the cup bottom;

[0016] Figure 2 It is a schematic diagram of the structure of the present invention;

[0017] Figure 3 yes Figure 2 A schematic diagram of the structure when the middle lifting bracket is in the lowest position;

[0018] Figure 4 yes Figure 2 A schematic diagram of the structure when the middle lifting bracket is in the highest position;

[0019] Figure 5 yes Figure 2 A schematic diagram of the structure from another angle;

[0020] Figure 6 yes Figure 5 A magnified view of part A;

[0021] Figure 7 yes Figure 2 A schematic diagram of the structure when the secondary material dividing plate (tertiary material dividing plate) is at the lowest position;

[0022] Figure 8 yes Figure 2 A schematic diagram of the structure when the secondary material distribution plate is at the highest position and the secondary push plate is lowered to a preset height;

[0023] Fig. 9 yes Figure 2 A schematic diagram of the structure in which the secondary push plate drives the secondary material dividing plate to move downward;

[0024] Fig.10 yes Figure 2 A schematic diagram of the structure of the material distributor and orienter during material distribution and orientation;

[0025] Fig.11 yes Fig.10 Cross-sectional view of the rolling guide groove and the orientation body at the bottom of the middle cup;

[0026] Fig.12 It is a structural schematic diagram of the lifting bracket of the present invention being driven by a cylinder.

[0027] The technical features represented by the numbers in the figure are as follows:

[0028] Bin 0, first-level push plate 1, first-level fixed plate 11, second-level push plate 2, second-level material dividing plate 2-1, second-level material dividing plate boss 2-2, second-level push plate limit platform 2-3, second-level push plate boss 2-4, second-level fixed plate 22, second-level fixed plate limit platform 22-1, first-level baffle 222, third-level push plate 3, third-level material dividing plate 3-1, third-level material dividing plate boss 3-2, third-level push plate limit platform 3-3, third-level push plate boss 3-4, third-level fixed plate 33, third-level fixed plate limit platform 33-1, Secondary baffle 333, fourth-stage push plate 4, lifting bracket 5, lifting mechanism 6, lifting screw 6-1, lifting motor 6-2, cup bottom 7, opening end 7-1, lower end arc 7-2, spring 8, slide 9, front baffle 9-1, rear baffle 9-2, distributor 10, orientator 12, distributor slope 10-1, distributor boss 10-2, orientator 12, cup bottom rolling guide groove 12-1, orienting body 12-2, return track 13, vibrator 14, slag receiving plate 15, cylinder 16. Implementation

[0029] In order to make the technical solution of the present invention clearer, the following Figures 1 to 12 It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, and are not intended to limit the protection scope of the present invention.

[0030] The present invention is a step feeding machine for the bottom of a thermos cup, comprising a lifting bracket 5 arranged at the bottom of a frame, on which 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 arranged in sequence from front to back, a first-stage fixed plate 11 is arranged at the rear side of the first-stage push plate, a second-stage fixed plate 22 is arranged at the rear side of the second-stage push plate, a third-stage fixed plate 33 is arranged at the rear side of the third-stage push plate, a slide groove 9 is arranged at the rear side of the fourth-stage push plate 4, the slide groove 9 is surrounded by a front baffle plate 9-1 and a rear baffle plate 9-2, a second-stage material dividing plate 2-1 is arranged between the second-stage push plate 2 and the second-stage fixed plate 22, a third-stage push plate 3 is arranged between the third-stage push plate 3 and the third-stage fixed plate 33 The dividing plate 3-1, the secondary dividing plate 2-1 and the tertiary dividing plate 3-1 are slidably arranged on the corresponding vertical sliding rods, the bottom ends of the vertical sliding rods are fixedly arranged on the corresponding push plate bosses 2-4, 3-4, the vertical sliding rods between the two push plate bosses 2-4, 3-4 and the corresponding dividing plates are provided with springs 8 for supporting the corresponding dividing plates to rise, a primary baffle 222 is provided at the upper front of the secondary fixed plate 22, a secondary baffle 333 is provided at the upper front of the tertiary fixed plate 33, the minimum gap between the primary baffle 222 and the secondary fixed plate 22 is at least greater than the thickness of the two cup bottoms 7, the secondary baffle 333 and the tertiary fixed plate The minimum gap between the fixed plates 33 is greater than the thickness of one cup bottom 7 and less than the thickness of two cup bottoms 7. The tops of the push plates, the material dividing plates, and the fixed plates at each level are inclined surfaces that are higher in the front and lower in the back. When the lifting bracket 5 is at the lowest position, the bottom edge of the inclined surface of the silo 0 is connected with the top inclined surface of the first-level push plate 1, so that the cup bottom 7 in the silo 0 slides to the top inclined surface of the first-level push plate 1; when the lifting bracket 5 is at the highest position, the push plates 1, 2, 3, and 4 at each level are simultaneously raised to the highest position, and the top inclined surface of the first-level push plate 1 is connected with the top inclined surface of the first-level fixed plate 11 to form the first sliding inclined surface of the cup bottom 7; under the action of the spring 8, the second-level dividing plate 1 The material plate 2-1 rises, the secondary material dividing plate boss 2-2 stops at the secondary fixed plate limit platform 22-1, and the top inclined surfaces of the secondary push plate 2, the secondary material dividing plate 2-1, and the secondary fixed plate 22 are connected in sequence to form the second sliding inclined surface of the cup bottom 7; under the action of the spring 8, the third-level material dividing plate 3-1 rises, the third-level material dividing plate boss 3-2 stops at the third-level fixed plate limit platform 33-1, and the top inclined surfaces of the third-level push plate 3, the third-level material dividing plate 3-1, and the third-level fixed plate 33 are connected in sequence to form the third sliding inclined surface of the cup bottom 7; the top inclined surface of the fourth-level push plate 4 is connected with the upper edge of the front baffle 9-1, so that the cup bottom 7 slides to the slide groove 9;When the lifting bracket 5 drops to a preset height from the highest position, the secondary push plate limit platform 2-3 overlaps the secondary material dividing plate boss 2-2, and the tertiary push plate limit platform 3-3 overlaps the tertiary material dividing plate boss 3-2. As the lifting bracket 5 continues to descend, the secondary push plate limit platform 2-3 drives the secondary material dividing plate 2-1 to move downward, 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 limit platform 3-3 drives the tertiary material dividing plate 3-1 to move downward, 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 working principle of the tertiary material dividing plate is the same as that of the secondary material dividing plate, and the corresponding attached drawings can refer to the secondary material dividing plate); the slide groove 9 is tilted forward as a whole, and the width of the slide groove 9 is adapted to the thickness of the cup bottom 7 (preferably, the width of the slide groove 9 is slightly larger than the thickness of a cup bottom 7, preferably larger than the thickness of a cup bottom 7 by 1mm-2mm) The inner end of the bottom surface is higher than the outer end, so that the cup bottom 7 rolls from the inside to the outside. The outer end of the chute 9 is provided with a material distributor orienter; the material distributor orienter includes a distributor 10 and an orienter 12. The distributor 10 includes: a material distributor inclined surface 10-1 connected to the front side wall of the chute 9, and a material distributor boss 10-2 connected to the bottom surface of the chute 9; the orienter 12 includes: a cup bottom rolling guide groove 12-1 connected to the outer end of the distributor 10, and an orienting body 12-2 composed of two inclined surfaces arranged below the cup bottom rolling guide groove 12-1 and adjustable in position along the front and rear directions, and a conveying line for conveying the cup bottom 7 is provided below the orienting body 12-2. ;

[0031] Preferably, the upper end of the front baffle 9 - 1 is a pointed top, and the upper part of the rear baffle 9 - 2 is tilted backward to form a V-shaped opening with a larger upper part and a smaller lower part to guide the cup bottom 7 to fall into the slide groove 9 .

[0032] Preferably, a vibrator 14 is provided on the bottom surface of the silo 0 to move the stuck cup bottom 7 toward the primary push plate 1 or to initially shake the cup bottom 7 loose. 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 silo 0 to avoid generating loud noise.

[0033] Preferably, a plurality of metal slag filter holes are provided on the bottom surface of the silo 0, and a slag receiving tray 15 is provided below the silo 0. Since the cup bottom 7 carries a lot of metal slag after metal processing, the metal slag will fall from the filter holes on the bottom surface of the silo 0 to the slag receiving tray 15 after vibration, so as to prevent the metal slag from accumulating in the silo 0.

[0034] Preferably, the lifting bracket 5 is driven by a lifting mechanism 6, which includes a lifting screw 6-1 and a lifting motor 6-2, and a control device for controlling the operation of the lifting motor 6-2. Compared with the use of the cylinder 16, the use of the lifting screw 6-1 can reduce the height of the whole machine and facilitate loading. A return track 13 is provided below the distributor 10, and the return track 13 is higher at the back and lower at the front, and its lowest part is connected to the silo 0.

[0035] In the above technical solutions, the cup bottom 7 is a round disc (see Figure 1 ), the upper end of which is an open end 7-1, the outer wall of the open end has no arc angle, and the lower end outer wall has a lower end arc 7-2.

[0036] The difficulty of design is how to sort. The traditional material distribution port uses the limitation methods such as height and width to allow the materials that meet the requirements to pass through, while the materials that exceed the limit are restricted at the distribution port and cannot pass through. The problem is that the traditional material distribution port is fixed, and the materials that exceed the limit are restricted at the distribution port, and cannot pass through by themselves, and at the same time, the distribution port will be blocked, so that other materials that meet the requirements cannot pass through. Thus, the function of material distribution is lost. Therefore, how to solve this failure problem becomes the focus of design. Solving it means half of the success, and not solving it means failure. For this reason, various structures have been tried to avoid this defect. The technical solution of the present invention is that the inventor has studied for a long time and repeatedly compared the applicability, advantages and disadvantages of various feeding methods. It is decided to increase the slope of the supporting object surface on the basis of the step feeding that is only applicable to cylindrical tubular objects that are not too long. Through sliding movement, the cylindrical tubular objects that could only be used for rolling before can also be applied to objects of other shapes (cup bottoms). At the same time, dividing plates are added at different levels to filter and sort various overlapping cup bottoms layer by layer, ensuring that a single single-layer cup bottom with the correct direction can be successfully selected in the end.

Claims

1. A step loading machine for the bottom of a thermos cup, comprising a lifting bracket (5) arranged at the bottom of a frame, on which 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 arranged in sequence from front to back, a first-stage fixed plate (11) is arranged at the rear side of the first-stage push plate, a second-stage fixed plate (22) is arranged at the rear side of the second-stage push plate, a third-stage fixed plate (33) is arranged at the rear side of the third-stage push plate, and a slide groove (9) is arranged at the rear side of the fourth-stage push plate (4), wherein the slide groove (9) is surrounded by a front baffle plate (9-1) and a rear baffle plate (9-2), characterized in that: A secondary material dividing plate (2-1) is provided between the secondary push plate (2) and the secondary fixed plate (22), and a third material dividing plate (3-1) is provided between the third push plate (3) and the third fixed plate (33). The secondary material dividing plate (2-1) and the third material dividing plate (3-1) are slidably arranged on corresponding vertical sliding rods, the bottom ends of the vertical sliding rods are fixedly arranged on corresponding push plate bosses (2-4, 3-4), and the vertical sliding rods between the two push plate bosses (2-4, 3-4) and the corresponding material dividing plates are provided with a support for supporting the corresponding material dividing plates to rise. A spring (8), a primary baffle (222) is provided at the upper front of the secondary fixing plate (22), a secondary baffle (333) is provided at the upper front of the tertiary fixing plate (33), a minimum gap between the primary baffle (222) and the secondary fixing plate (22) is at least greater than the thickness of the two cup bottoms (7), a minimum gap between the secondary baffle (333) and the tertiary fixing plate (33) is greater than the thickness of one cup bottom (7) and less than the thickness of the two cup bottoms (7), the tops of the push plates, the material dividing plates and the fixing plates at each level are inclined surfaces with a high front and a low rear, When the lifting bracket (5) is at the lowest position, the bottom edge of the inclined surface of the silo (0) is connected to the top inclined surface of the first push plate (1), so that the cup bottom (7) in the silo (0) slides to the top inclined surface of the first push plate (1); When the lifting bracket (5) is at the highest position, the push plates (1, 2, 3, 4) of each level are simultaneously raised to the highest position, and the top inclined surface of the first push plate (1) is connected with the top inclined surface of the first fixed plate (11) to form a first sliding inclined surface of the cup bottom (7); under the action of the spring (8), the second material distribution plate (2-1) is raised, and the second material distribution plate boss (2-2) is stopped at the second fixed plate limit platform (22-1), and the top inclined surfaces of the second push plate (2), the second material distribution plate (2-1), and the second fixed plate (22) are The three-stage material distribution plate (3-1) is connected in sequence to form a second sliding inclined surface of the cup bottom (7); under the action of the spring (8), the three-stage material distribution plate (3-1) rises, the three-stage material distribution plate boss (3-2) stops at the three-stage fixed plate limit platform (33-1), and the top inclined surfaces of the three-stage push plate (3), the three-stage material distribution plate (3-1), and the three-stage fixed plate (33) are connected in sequence to form a third sliding inclined surface of the cup bottom (7); the top inclined surface of the four-stage push plate (4) is connected to the upper edge of the front baffle plate (9-1), so that the cup bottom (7) slides to the slide groove (9); When the lifting bracket (5) descends from the highest position to a preset height, the secondary push plate limiting platform (2-3) overlaps with the secondary material dividing plate boss (2-2), and the tertiary push plate limiting platform (3-3) overlaps with the tertiary material dividing plate boss (3-2). As the lifting bracket (5) continues to descend, the secondary push plate limiting platform (2-3) drives the secondary material dividing plate (2-1) to move downward, 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 platform (3-3) drives the tertiary material dividing plate (3-1) to move downward, so that the cup bottom (7) supported on the tertiary material dividing plate (3-1) falls to the top inclined surface of the tertiary push plate (3); The slide groove (9) is tilted forward as a whole, the width of the slide groove (9) is adapted to the thickness of the cup bottom (7), and the inner end of the bottom surface of the slide groove (9) is higher than the outer end, so that the cup bottom (7) rolls from the inside to the outside in the slide groove (9), and a material distributor orientator is provided at the outer end of the slide groove (9); the material distributor orientator comprises a distributor (10) and an orientator (12), the distributor (10) comprises: a material distributor inclined surface (10-1) connected to the front side wall of the slide groove (9), and a material distributor boss (10-2) connected to the bottom surface of the slide groove (9); the orientator (12) comprises: a cup bottom rolling guide groove (12-1) connected to the outer end of the distributor (10), and an orientator (12-2) composed of two inclined surfaces and arranged below the cup bottom rolling guide groove (12-1) and capable of adjusting its position in the front-rear direction.

2. The step feeder for the bottom of a thermos cup according to claim 1, characterized in that: The upper end of the front baffle (9-1) is a pointed top, and the upper part of the rear baffle (9-2) is tilted backwards to form an opening that is larger at the top and smaller at the bottom to guide the cup bottom (7) to fall into the slide groove (9).

3. The step feeder for the bottom of a thermos cup according to claim 1, characterized in that: A vibrator (14) is provided on the bottom surface of the silo (0) to move the stuck cup bottom (7) toward the primary push plate (1) or to initially shake the cup bottom (7) apart through vibration.

4. The step feeder for the bottom of a thermos cup according to claim 1, characterized in that: A plurality of metal slag filter holes are provided on the bottom surface of the silo (0), and a slag receiving pan (15) is provided below the silo (0).

5. The step feeder for the bottom of a thermos cup according to claim 1, characterized in that: The lifting bracket (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 step feeder for the bottom of a thermos cup according to claim 1, characterized in that: A material return track (13) is provided below the material distributor (10). The material return track (13) is higher at the back and lower at the front, and its lowest part is connected to the material bin (0).

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