CN110329785B

CN110329785B - Iron sheet tapping stacking mechanism

Info

Publication number: CN110329785B
Application number: CN201910685273.7A
Authority: CN
Inventors: 沈华加; 陈盘水; 汪义勇
Original assignee: Huayuan Packaging Xianning Co ltd
Current assignee: Huayuan Packaging Xianning Co ltd
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2024-01-19
Anticipated expiration: 2039-07-27
Also published as: CN110329785A

Abstract

The invention provides an iron sheet discharging and stacking mechanism, and belongs to the technical field of machinery. The discharging and stacking mechanism comprises two rollers which are rotationally connected to the frame, the two rollers are connected through a driving shaft, the driving shaft is connected with an output shaft of a second stepping motor, a main air pipe is sleeved on the driving shaft, the outer ends of the spokes are fixedly connected with the inner wall surface of the outer ring, the inner cavities of the spokes are communicated with the main air pipe, a plurality of third air holes which are in one-to-one correspondence with the spokes are formed in the outer ring, the third air holes are communicated with the inner cavities of the corresponding spokes, the two rollers are respectively positioned on two sides of the carrier, a guide block is arranged between the two rollers, the guide block is fixedly connected with the main air pipe, the guide block is positioned right above the discharging and stacking table, a guide surface is arranged on the guide block, one end of the guide surface is tangent with the peripheral surface of the outer ring, and the distance between the other end of the guide surface and the driving shaft is larger than the radius of the outer ring. The invention has the advantages of being capable of well protecting the printing surface, and the like.

Description

Iron sheet tapping stacking mechanism

Technical Field

The invention belongs to the technical field of machinery, and relates to an iron sheet discharging and stacking mechanism.

Background

In the can manufacturing process, the rolled iron sheets are cut into pieces, then each piece of iron sheet is printed and dried, and the piece of iron sheet which can be manufactured into a plurality of cans is cut into corresponding sizes of a single can and then pressed to form the cans.

In the whole process, the drying step after printing is particularly important, particularly the printing surface is protected, in the prior art, a conveyor belt is adopted for direct conveying, the iron sheets are in a horizontally distributed state, on a production line with a limited length in a workshop, the number of heated iron sheets is small, the drying efficiency is low, and hot air directly acts on the printing surface of the iron sheets, so that the conditions of overheating foaming, paint stripping and the like of the iron sheets are easily caused.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a sheet iron discharging and stacking mechanism, which aims to solve the technical problem of how to prevent a printing surface from being worn during sheet iron discharging.

The aim of the invention can be achieved by the following technical scheme: the iron sheet discharging and stacking mechanism is characterized by comprising a frame, a discharging and stacking table and a circulating chain, wherein the discharging and stacking table and the circulating chain are arranged on the frame, a carrier is fixedly arranged on each chain link of the circulating chain, the circulating chain is pulled by a driving wheel and a driven wheel, and the discharging and stacking table is close to each carrier on one side of the driven wheel;

the discharging and stacking mechanism comprises two rollers which are rotationally connected to the frame, the two rollers are connected through a driving shaft, the driving shaft is connected with an output shaft of a second stepping motor, a main air pipe is sleeved on the driving shaft, the main air pipe is connected with a second air pump, the rollers comprise tubular spokes and annular outer rings, the inner ends of the spokes are fixedly connected with the driving shaft, the outer ends of the spokes are fixedly connected with the inner wall surface of the outer rings, the inner cavities of the spokes are communicated with the main air pipe, a plurality of third air holes which are in one-to-one correspondence with the spokes are formed in the outer rings, the third air holes are communicated with the inner cavities of the corresponding spokes, the two rollers are respectively positioned at two sides of the carrier, a guide block is arranged between the two rollers, the guide block is fixedly connected with the main air pipe, the guide block is positioned right above the discharging and stacking table, one end of the guide block is tangential to the peripheral surface of the outer ring, and the distance between the other end of the guide surface and the driving shaft is larger than the radius of the outer ring; each outer ring is correspondingly provided with a shielding plate, the shielding plates are sector-shaped, and the shielding plates are wrapped on the outer wall surface of the outer ring between the guide block and the highest point of the outer ring.

In the process of discharging, the printing surface of the iron sheet is also required to be protected, and although the printing surface of the iron sheet has finished the drying process, the temperature is higher, and the stability of the paint surface is poorer.

This unloading mechanism adopts Zhou Changyuan to be greater than the gyro wheel of iron sheet length far away, and the third gas pocket department on the lateral surface of the outer lane of gyro wheel has the negative pressure that adsorbs the iron sheet, and the iron sheet receives the absorption and adheres to on the outer lane when passing through the outer lane lateral surface, and is slightly curly pattern, and until the initial entering end of iron sheet is close to the guide block, receives the drive of guide surface on the guide block, and the iron sheet is slow by the outer wall of stripping the outer lane to fall into to ejection of compact stack bench.

The driving shaft is rotationally connected in the main air pipe, and the shielding plate can shield part of the third air holes on the outer wall surface of the ineffective outer ring, so that the negative pressure acting on the iron sheet is larger, and the iron sheet is prevented from sliding off.

Due to the blanking in the mode, the printing surface of the iron sheet is not contacted by external hardware, the printing surface of the iron sheet is well protected, the outer edge of the iron sheet is not impacted, the guiding surface on the guiding block is also a smooth transition surface, the guiding surface acts on the middle part of the iron sheet, and the influence on the iron sheet is small.

In the above-mentioned iron sheet tapping stacking mechanism, the highest point of the outer ring is located above the horizontal plane where the axis of the circulating chain is located.

When the iron sheet is about to be in the horizontal position, the iron sheet starts to be absorbed and supported, so that the iron sheet is prevented from sliding off the carrier.

In the above-mentioned iron sheet tapping stacking mechanism, the discharging stacking table is provided with a blanking hole and a stacking hole, the upper end opening of the blanking hole is larger than the lower end opening, and the stacking hole is connected with the lower end of the blanking hole.

Drawings

Fig. 1 is a schematic structural view of a tin printing and drying production line.

Fig. 2 is a schematic diagram of the position structure of the carrier and the transition conveyor belt when the iron sheet enters the furnace.

Fig. 3 is a cross-sectional view of a transition conveyor belt.

Fig. 4 is a schematic structural view of the discharging mechanism.

Fig. 5 is a schematic diagram of the position structure of the carriage and the rollers when the iron sheet is discharged from the furnace.

Fig. 6 is a schematic perspective view of the roller.

In the figure, 1, a feeding conveyer belt; 2. a discharging stacking table; 21. a blanking hole; 22. stacking holes; 3. baking oven; 31. a circulating chain; 32. a carrier; 321. a bracket arm; 322. a connecting plate; 323. a limit bar; 33. a driving wheel; 34. a driven wheel; 4. a transition conveyor belt; 41. a first vent hole; 42. a first stepping motor; 43. a control board; 44. a first air chamber; 45. a second vent hole; 46. a position sensor; 47. an auxiliary conveyor belt; 5. a roller; 51. a drive shaft; 52. a main air pipe; 53. a spoke; 54. an outer ring; 55. a third vent hole; 56. a guide block; 57. a shutter; 58. and a second stepper motor.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the production line comprises a frame, a feeding conveyor belt 1 arranged on the frame, a discharging stacking table 2 arranged on the frame, and a baking furnace 3 positioned between the feeding conveyor belt 1 and the discharging stacking table 2, wherein the baking furnace 3 comprises a furnace body and a circulating chain 31, a carrier 32 is fixedly arranged on each chain link of the circulating chain 31, the circulating chain 31 is pulled by a driving wheel 33 and a driven wheel 34, each carrier 32 on a straight section of the circulating chain 31 is positioned in the baking furnace 3, the driving wheel 33 and the driven wheel 34 are respectively positioned at an inlet and an outlet of the baking furnace 3, one end, close to the circulating chain 31, of the carrier 32 and one end, far from the circulating chain 31 are respectively provided with a limiting strip 323, the limiting strip 323 is positioned at one side of the carrier 32 in the moving direction, the feeding conveyor belt 1 is close to each carrier 32 on one side of the driving wheel 33, each carrier 32 on one side of the discharging stacking table 2 is close to the driven wheel 34, and heating plates 3 are respectively arranged on two sides perpendicular to the straight surface of the circulating chain 31; the thickness of the limit bar 323 is equal to the interval between the adjacent carriers 32 on the straight section of the circulating chain 31;

a feeding mechanism for driving iron sheets to move from the feeding conveyer belt 1 to the carrier 32 is arranged between the feeding conveyer belt 1 and one end of the circulating chain 31 close to the inlet, and a discharging mechanism for taking out iron sheets on each carrier 32 one by one and stacking the iron sheets on the discharging stacking table 2 is arranged between the discharging stacking table 2 and one end of the circulating chain 31 close to the outlet.

The printing iron sheets to be dried are longitudinally distributed in the baking furnace 3, the baking capacity of the printing iron sheets is greatly increased in the baking furnace 3 with the same length, and the printing surfaces of the printing iron sheets longitudinally distributed are not directly aimed at the heating plate, so that the swelling and the paint frying caused by transitional heating of the printing surfaces can be effectively avoided.

The thickness of the two limiting strips 323 arranged on the carrier 32 is equal to the distance between the adjacent carriers 32, so that the section bar between the adjacent carriers 32 positioned on the straight section wraps the iron sheet, and the conditions of iron sheet inclination, friction with the carrier 32 and the like caused by vibration are avoided.

In the tin printing and drying production line for the can production, the feeding mechanism comprises a first manipulator, a plurality of first suckers are arranged on the first manipulator, the first suckers are connected with a first air pump, the first manipulator can take and put iron sheets on the feeding conveyor belt 1 onto the carriers 32 one by one, the discharging mechanism comprises a second manipulator, a plurality of second suckers are arranged on the second manipulator, the second suckers are connected with a second air pump, and the second manipulator can take and put iron sheets on the carriers 32 onto the discharging stacking table one by one.

The iron sheet can be put into and out of the furnace through the traditional manipulator, and the structures of the sucker I and the sucker II belong to common taking and placing modes of the sheet smooth workpiece in the industrial production process, and are not repeated here.

As shown in fig. 1, fig. 2 and fig. 3, the feeding mechanism comprises at least one transition conveyor belt 4, the transition conveyor belt 4 is located between the feeding conveyor belt 1 and the inlet of the baking furnace 3, the carrier 32 comprises two supporting arms 321 and a connecting plate 322 connected with the inner ends of the two supporting arms 321, a gap between the two supporting arms 321 forms an avoidance port capable of avoiding the transition conveyor belt 4, first ventilation holes 41 penetrating through two sides of the transition conveyor belt 4 are formed in the transition conveyor belt 4 at equal intervals, the transition conveyor belt 4 is pulled by two transition rollers, one transition roller is driven by a first stepping motor 42, a control plate 43 fixed on the frame is arranged between two flat sections of the transition conveyor belt 4, a first air cavity 44 is arranged in the control plate 43, the first air cavity 44 is connected with a first air pump, a plurality of second ventilation holes 45 communicated with the first air cavity 44 are formed in the upper surface of the control plate 43, the space between the first ventilation holes 41 is smaller than the aperture of the second ventilation holes 45, the minimum gap between the adjacent first ventilation holes 41 is smaller than the aperture control plate 45, the upper surface of the control plate 43 can be close to the flat sections of the two flat sections of the transition conveyor belt 4 and can be located in the same plane as the sensor 46, and the sensor is located in the flat sections of the frame 46, and can be stopped at the position of the same position as the sensor 46 is located in the flat sections.

In order to prevent friction and other objects from contacting before the sheet is fed into the furnace, a lifting type feeding mode is adopted to enable the transition conveyor belt 4 to act on the lower surface of the sheet, when the sheet is conveyed to the position of the transition conveyor belt 4 one by the feeding conveyor belt 1, the overlapped part of the first ventilation holes 41 and the second ventilation holes 45 is continuously changed to enable negative pressure acting on the lower surface of the sheet to be continuously changed, the aim of the process is to reduce and buffer the sheet, limit strips 323 at the inner end of the carrier 32 are prevented from being impacted, deformation of the sheet edge is caused, when the sheet reaches the position of the position sensor 46, the first stepping motor 42 for controlling the operation of the transition conveyor belt 4 is stopped, the adsorption force between the control plate 43 and the transition conveyor belt 4 can eliminate the operation inertia of the transition conveyor belt 4, so that the stop position of the sheet is accurate, meanwhile, the sheet is acted on the upper surface of the transition conveyor belt 4, the sheet is adhered to the upper surface of the transition conveyor belt 4 until the carrier 32 which is operated from bottom to top is lifted, the sheet is lifted off, the sheet is repeatedly lifted from the position sensor 46, and the sheet is repeatedly moved to the position of the sheet sensor 46, and the sheet feeding operation is completed.

The setting of first air vent 41 and second air vent 45 and the setting of both sizes can ensure that the negative pressure can be used for on the upper surface of transition conveyer belt 4 all the time, just the size of negative pressure changes along with the change of the overlapping area of first air vent 41 and second air vent 45, ensure that the iron sheet can receive the damping effect of negative pressure all the time, cause the iron sheet to fly out and out of control when avoiding first air vent 41 and second air vent 45 to overlap completely, simultaneously, the lower surface of transition conveyer belt 4 also receives the effect of negative pressure all the time, thereby can cause to offset inertial force and avoid the resilience of transition conveyer belt 4 at the moment that transition conveyer belt 4 stopped, make whole process position precision high, stability is good, the iron sheet protection is full.

The output shaft of the first stepping motor 42 is also connected with auxiliary conveying belts 47 which are positioned on two sides of the transition conveying belt 4 and are respectively positioned on two sides of the two supporting arms 321. In order to adapt to the bearing of the iron sheet and the transition conveyor belt 4, the carrier 32 is only partially contacted with the iron sheet, and the iron sheet receives a larger impact force when entering the furnace, so as to avoid the iron sheet from tilting or twisting when entering the furnace, a plurality of auxiliary conveyor belts 47 are arranged to enlarge the bearing area of the iron sheet and improve the stability of the iron sheet.

The transition conveyor belts 4 are two, and the position sensor 46 is located on the frame between the two transition conveyor belts 4.

As shown in fig. 1, fig. 4, fig. 5 and fig. 6, the blanking mechanism comprises two rollers 5 which are rotatably connected to the frame, the two rollers 5 are connected through a driving shaft 51, the driving shaft 51 is connected with an output shaft of a second stepping motor 58, a main air pipe 52 is sleeved on the driving shaft 51, the main air pipe 52 is connected with a second air pump, the rollers 5 comprise tubular spokes 53 and annular outer rings 54, the inner ends of the spokes 53 are fixedly connected with the driving shaft 51, the outer ends of the spokes 53 are fixedly connected with the inner wall surfaces of the outer rings 54, the inner cavities of the spokes 53 are communicated with the main air pipe 52, a plurality of third air holes 55 which are in one-to-one correspondence with the spokes 53 are formed in the outer rings 54, the third air holes 55 are communicated with the inner cavities of the corresponding spokes 53, the two rollers 5 are respectively positioned at two sides of the carrier 32, a guide block 56 is arranged between the two rollers, the guide block 56 is fixedly connected with the main air pipe 52, the guide block 56 is positioned right above the discharging stacking table 2, one end of the guide block 56 is provided with a guide surface, one end of the guide surface is tangential to the peripheral surface of the outer ring 54, and the other end of the guide surface is larger than the radius of the outer ring 54, and the distance between the guide surface and the guide surface is larger than the radius of the outer ring 54. Each outer ring 54 is correspondingly provided with a shielding plate 57, the shielding plates 57 are in a sector shape, and the shielding plates 57 are wrapped on the outer wall surface of the outer ring 54 between the guide blocks 56 and the highest point of the outer ring 54.

The blanking mechanism adopts the roller 5 with the length of Zhou Changyuan being far greater than that of the iron sheet, the third air hole 55 on the outer side face of the outer ring 54 of the roller 5 is provided with negative pressure for adsorbing the iron sheet, the iron sheet is adsorbed and coated on the outer ring 54 when passing through the outer side face of the outer ring 54 and is in a slightly curled mode until the initial entering end of the iron sheet is close to the guide block 56 and is driven by the guide face on the guide block 56, and the iron sheet is slowly stripped from the outer wall face of the outer ring 54, so that the iron sheet falls onto the discharging stacking table 2.

The driving shaft 51 is rotatably connected in the main air pipe 52, and the shielding plate 57 can shield part of the third air holes 55 on the outer wall surface of the ineffective outer ring 54, so that the negative pressure acting on the iron sheet is high, and the iron sheet is prevented from sliding off.

Since the above-mentioned mode unloading, the printing face of iron sheet does not receive the contact of external hardware at all, has carried out fine protection to it, and the outer fringe of iron sheet can not receive the striking yet, and the guide surface on the guide block 56 is smooth transition face too, and acts on the middle part of iron sheet, and is little to the influence of iron sheet.

The highest point of the outer race 54 is located above the horizontal plane of the axis of the endless chain 31. When the iron sheet is about to be in the horizontal position, the iron sheet starts to be absorbed and supported, so that the iron sheet is prevented from sliding off the carrier 32. The discharging stacking table 2 is provided with a blanking hole 21 and a stacking hole 22, the upper end opening of the blanking hole 21 is larger than the lower end opening, and the stacking hole 22 is connected with the lower end of the blanking hole 21.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The iron sheet discharging and stacking mechanism is characterized by comprising a frame, a discharging and stacking table (2) and a circulating chain (31), wherein the discharging and stacking table (2) and the circulating chain (31) are arranged on the frame, a carrier (32) is fixedly arranged on each chain link of the circulating chain (31), the circulating chain (31) is pulled by a driving wheel (33) and a driven wheel (34), and the discharging and stacking table (2) is close to each carrier (32) on one side of the driven wheel (34); one end of the carrier (32) close to the circulating chain (31) and one end of the carrier far from the circulating chain (31) are respectively provided with a limiting strip (323); the thickness of the limit strips (323) is equal to the distance between adjacent carriers (32) on the straight section of the circulating chain (31);

the discharging and stacking mechanism comprises two rollers (5) which are rotationally connected to a frame, the two rollers (5) are connected through a driving shaft (51), the driving shaft (51) is connected with an output shaft of a second stepping motor (58), a main air pipe (52) is sleeved on the driving shaft (51), the main air pipe (52) is connected with a second air pump, the rollers (5) comprise tubular spokes (53) and annular outer rings (54), the inner ends of the spokes (53) are fixedly connected with the driving shaft (51), the outer ends of the spokes (53) are fixedly connected with the inner wall surface of the outer rings (54), the inner cavities of the spokes (53) are communicated with the main air pipe (52), a plurality of third air holes (55) which are in one-to-one correspondence with the spokes (53) are arranged on the outer rings (54), the inner cavities of the corresponding spokes (53), the two rollers (5) are respectively positioned on two sides of the carrier (32), a guide block (56) is arranged between the two rollers, the outer ends of the spokes (53) are fixedly connected with the inner wall surface of the outer rings (54), the guide block (56) is positioned on the guide block (56) and is tangential to the guide surface of the guide block (56) which is positioned on the outer ring (2), the distance between the other end of the guide surface and the driving shaft (51) is larger than the radius of the outer ring (54); each outer ring (54) is correspondingly provided with a shielding plate (57), the shielding plates (57) are in a sector shape, and the shielding plates (57) are coated on the outer wall surface of the outer ring (54) between the guide block (56) and the highest point of the outer ring (54);

the highest point of the outer ring (54) is positioned above the horizontal plane of the axis of the circulating chain (31);

the discharging stacking table (2) is provided with a discharging hole (21) and a stacking hole (22), the upper end opening of the discharging hole (21) is larger than the lower end opening, and the stacking hole (22) is connected with the lower end of the discharging hole (21).