CN114455148B

CN114455148B - Control method of sheet arranging and stacking machine and sheet arranging and stacking machine

Info

Publication number: CN114455148B
Application number: CN202210099049.1A
Authority: CN
Inventors: 何伟; 余家法; 顾简
Original assignee: Siemens Ltd China
Current assignee: Siemens Ltd China
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2023-07-14
Anticipated expiration: 2042-01-27
Also published as: CN114455148A

Abstract

The control method of the sheet arranging and stacking machine comprises the following steps: monitoring the material condition of a trough positioned at an upstream station; when the material in the material groove at the upstream station is detected, calculating the number of the material groove at the current material position and judging whether the number is equal to the material discharging number, if so, controlling the material discharging mechanism to move the material in the material groove at the material discharging position out of the material groove, and if not, controlling the material discharging mechanism not to operate; and when the material shortage of the material groove positioned at the upstream station is monitored, calculating the number of the material groove with the material currently positioned at the discharging position and judging whether the number of the material groove with the material is smaller than the discharging number, if the judgment result is negative, controlling the discharging mechanism to move the material positioned in the material groove positioned at the discharging position out of the material groove, and if the judgment result is positive, controlling the discharging mechanism not to operate. By monitoring the material condition of the upstream station, whether the material quantity of the discharging position meets the packing requirement is judged in advance, and the qualification rate of the product is effectively improved. In addition, a sheet arranging stacker is also provided.

Description

Control method of sheet arranging and stacking machine and sheet arranging and stacking machine

Technical Field

The invention relates to a control method, in particular to a control method of a sheet arranging and stacking machine and the sheet arranging and stacking machine adopting the control method.

Background

The sheet arranging and stacking machine is used for packaging the sheets. When empty chips exist in the packaging working section of the chip arranging and stacking machine, the finished product packaging chips are lacked. At present, the investigation can only be manually performed at the later stage, which is very inconvenient.

Disclosure of Invention

The invention aims to provide a control method of a sheet arranging and stacking machine, which can prevent empty sheets from entering finished product packages and improve the qualification rate of the product packages.

Another object of the present invention is to provide a sheet handling stacker capable of preventing empty sheets from entering into finished product packages, which have a high yield of packaged products.

The invention provides a control method of a sheet arranging stacker. The sheet arranging and stacking machine comprises a conveying mechanism and a discharging mechanism. The feeding mechanism is provided with a plurality of feed grooves which are arranged along the conveying direction. The feeding mechanism can drive the trough to a discharging position. The number of the feed grooves corresponding to the feeding positions is larger than or equal to a preset feeding number. The blanking mechanism can move materials in the material groove positioned at the blanking position out of the material groove. The feed mechanism can also drive a plurality of material tanks to an upstream station one by one. The upstream stations and the discharging stations are distributed along the conveying direction of the conveying mechanism. The control method comprises the following steps: monitoring the material condition of a trough positioned at an upstream station; when the material in the material groove at the upstream station is detected, calculating the number of the material groove at the current material position and judging whether the number of the material groove at the current material position is equal to the material discharging number, if so, controlling the material discharging mechanism to move the material in the material groove at the material position out of the material groove, and if not, controlling the material discharging mechanism not to operate; and when the material shortage of the material groove positioned at the upstream station is monitored, calculating the number of the material groove currently positioned at the discharging position and judging whether the number of the material groove currently positioned at the discharging position is smaller than the discharging number, if not, controlling the discharging mechanism to move the material in the material groove positioned at the discharging position out of the material groove, and if so, controlling the discharging mechanism not to operate.

According to the control method of the sheet arranging and stacking machine, whether the quantity of the materials at the discharging position meets the packing requirement is judged in advance by monitoring the conditions of the materials in the material groove at the upstream station, packing is not executed when the quantity of the materials at the discharging position does not meet the packing requirement, manual later examination is not needed, the qualification rate of products is effectively improved, and labor is saved.

In another exemplary embodiment of the control method of the sheet stacker, the number of material-containing material slots currently located at the discharge level is calculated from the operating conditions of the feed mechanism and the discharge mechanism and the monitoring results of the material conditions of the material slots located at the upstream station. Therefore, the calculation can be facilitated, and the control efficiency is improved.

The invention provides a sheet arranging stacker which comprises a feeding mechanism, a discharging mechanism, a monitoring unit and a control unit. The feeding mechanism is provided with a plurality of feed grooves which are arranged along the conveying direction. The feeding mechanism can drive the trough to a discharging position. The number of the feed grooves corresponding to the feeding positions is larger than or equal to a preset feeding number. The feed mechanism can also drive a plurality of material tanks to an upstream station one by one. The upstream stations and the discharging stations are distributed along the conveying direction of the conveying mechanism. The blanking mechanism can move materials in the material groove positioned at the blanking position out of the material groove. The monitoring unit can monitor the material condition of the trough positioned at the upstream station. The control unit is connected with the monitoring unit and can judge whether the material exists in the material groove positioned at the upstream station according to the monitoring result of the monitoring unit. When it is determined that the material exists in the material tank located at the upstream station, the control unit can calculate the number of the material-containing material tanks currently located at the discharging position and determine whether the number of the material-containing material tanks currently located at the discharging position is equal to the discharging number. If the judgment result is that the material in the material tank positioned at the material discharging position is moved out of the material tank by the material discharging mechanism, the control unit can control the material discharging mechanism not to operate. When determining that the material is missing from the material trough at the upstream station, the control unit can calculate the number of the material trough currently located at the discharging position and determine whether the number of the material trough currently located at the discharging position is smaller than the discharging number. If the judgment result is negative, the control unit can control the blanking mechanism to move materials in the material groove positioned at the blanking position out of the material groove, and if the judgment result is positive, the control unit can control the blanking mechanism not to operate. This reason piece stacker, through the material condition in the silo of monitoring the upstream station, whether judge in advance and go down the material quantity of material level and satisfy the packing requirement, then do not carry out the packing when not satisfying the packing requirement, need not artifical later stage investigation, effectively improve the qualification rate of product and use manpower sparingly.

In another exemplary embodiment of the slice stacking machine, the control unit can calculate the number of material-containing material bins currently located at the discharge level as a function of the operating conditions of the feed and discharge mechanisms and the monitoring of the material conditions of the material bins located at the upstream station. Therefore, the calculation can be facilitated, and the control efficiency is improved.

In yet another exemplary embodiment of the sheet stacker, the feed mechanism includes a plurality of conveyor rollers, a conveyor belt, and a plurality of vanes. The axial direction of the conveying roller is perpendicular to the conveying direction of the conveying mechanism. The conveyor belt is wound on a plurality of conveyor rollers to form a plurality of straight sections and a plurality of corner sections of the conveyor belt. The blades are arranged on the conveyor belt and are arranged along the conveying direction of the conveying mechanism. The blades are in a sheet shape perpendicular to the conveying direction of the conveying mechanism and are positioned on the same straight section and are parallel to each other. A trough is formed between two adjacent blades. The upstream station and the discharging position correspond to a straight section of the conveyor belt, and in a first corner section of the straight section downstream of the conveying section along the conveying direction of the conveying mechanism, the maximum included angle between two adjacent blades is larger than a discharging angle so as to automatically release materials in the corresponding trough. The structure can realize automatic release of materials.

In yet another exemplary embodiment of the sheet stacker, the blanking mechanism includes a pusher. The pusher is movable in a pushing direction to push material in the chute at the discharge level out of the chute. The structure has better operation stability.

In a further exemplary embodiment of the slice stacker, the monitoring unit is provided as a photoelectric sensor.

Drawings

The following drawings are only illustrative of the invention and do not limit the scope of the invention.

Fig. 1 is a schematic structural view of an exemplary embodiment of a slice stacker.

Fig. 2 is a flow chart for explaining one exemplary embodiment of a control method of the slice stacker.

Description of the reference numerals

10 conveying mechanism

11 trough

12 transfer roller

13 conveyor belt

131 straight section

132 corner section

14-blade

20 unloading mechanism

21 pushing piece

30 monitoring unit

40 control unit

51 blanking level

52 upstream station

Conveying direction of S conveying mechanism

F pushing direction

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product.

Fig. 1 is a schematic structural view of an exemplary embodiment of a slice stacker. The sheet stacker is used for packing sheets such as paper diapers and the like. As shown in fig. 1, the sheet stacker includes a feeding mechanism 10 and a discharging mechanism 20.

The feed mechanism 10 has a number of pockets 11 arranged in its conveying direction S, i.e. in the direction of the conveyor belt 13 of the feed mechanism 10. The feed mechanism 10 is capable of driving the chute 11 to a discharge level 51. The number of the material grooves 11 corresponding to the material discharging amount 51 is greater than or equal to a preset material discharging amount, and in the present exemplary embodiment, the number of the material grooves 11 corresponding to the material discharging amount 51 is equal to the preset material discharging amount (the material discharging amount is, for example, 11). The blanking mechanism 20 is able to move material in the chute 11 at the blanking level 51 out of the chute 11 for bagging. The feed mechanism 10 is also capable of driving a plurality of the troughs 11 one by one to an upstream station 52. The upstream station 52 and the discharge level 51 are arranged along the conveying direction S of the conveyor 10, in particular, for example, adjacently, i.e. one trough 11 enters the discharge level 51 immediately after being removed from the upstream station 52.

Specifically, the feeding mechanism 10 includes, for example, a plurality of conveying rollers 12, one conveying belt 13, and a plurality of blades 14.

The axial direction of the transfer roller 12 is perpendicular to the conveying direction S of the feed mechanism 10. The conveyor belt 13 is wound around a plurality of conveyor rollers 12 to form a plurality of straight run sections 131 (i.e., portions extending in a straight line) and a plurality of corner sections 132 (i.e., portions extending along the surfaces of the conveyor rollers) of the conveyor belt 13.

The plurality of blades 14 are disposed on the conveyor belt 13 and are aligned along the conveying direction S of the feeding mechanism 10. Each blade 14 has a sheet shape disposed perpendicularly to the conveying direction S of the conveying mechanism 10. A trough 11 is formed between two adjacent vanes 14. The blades 14 in the same straight run 131 are parallel to each other to grip the material in the trough 11. The upstream station 52 and the blanking level 51 correspond to a straight run 131 of the conveyor belt 13, and in a first corner section 132 of the straight run 131 downstream of the conveying direction S of the conveyor 10, the maximum angle between two adjacent blades 14 is greater than a blanking angle to automatically release the material in the respective chute 11 under the influence of gravity. When the included angle between two adjacent blades 14 is smaller than or equal to the discharging angle, the material is still clamped by the two blades 14. The blanking mechanism 20 comprises, for example, a pusher 21. The pusher 21 is movable in a pushing direction F to push material located in the chute 11 of the blanking level 51 out of the chute 11.

Fig. 2 is a flow chart for explaining one exemplary embodiment of a control method of the slice stacker. The control method is used, for example, for a sheet stacker shown in fig. 1, which is used, for example, for bundling sheets such as paper diapers and the like. Referring to fig. 2, the control method of the slice stacker includes:

step S1: starting;

step S2: judging whether the material exists in the material tank 11 positioned at the upstream station 52 according to the monitoring result of the material tank 11 positioned at the upstream station 52, if so, calculating the number of the material tanks 11 currently positioned at the discharging position 51 and entering the step S32;

step S32: judging whether the number of the material-containing material tanks 11 currently positioned at the discharging position 51 is equal to the discharging number, if yes, controlling the discharging mechanism 20 to move the material in the material tanks 11 positioned at the discharging position 51 out of the material tanks 11 and return to the executing step S2, and if no, controlling the discharging mechanism 20 not to operate and return to the executing step S2;

in the step S2, when the material shortage of the material tank 11 positioned at the upstream station 52 is detected, the number of the material tanks 11 currently positioned at the discharging position 51 and provided with the material is calculated, and the step S31 is carried out;

step S31: whether the number of the material-containing material tanks 11 currently located at the discharging level 51 is smaller than the discharging number is judged, if not, the discharging mechanism 20 is controlled to move the material located in the material tanks 11 at the discharging level 51 out of the material tanks 11 and return to the execution step S2, and if yes, the discharging mechanism 20 is controlled not to operate and return to the execution step S2.

According to the control method of the sheet arranging and stacking machine, whether the quantity of the materials positioned at the discharging position 51 meets the packing requirement is judged in advance by monitoring the condition of the materials in the material groove 11 of the upstream station 52, packing is not executed when the quantity of the materials does not meet the packing requirement, manual later investigation is not needed, the qualification rate of products is effectively improved, and labor is saved.

In the present exemplary embodiment, the number of material-containing material tanks 11 currently located at the discharge level 51 is calculated, for example, from the operating conditions of the material feeding mechanism 10 and the material discharging mechanism 20 and the monitoring results of the material conditions of the material tanks 11 located at the upstream station 52. The specific position of each trough 11 can be obtained according to the operation condition of the material conveying mechanism 10, which trough 11 materials are moved out by the material discharging mechanism 20 can be obtained according to the operation condition of the material discharging mechanism 20, and which trough 11 lacks materials when entering the material discharging position 51 can be obtained according to the monitoring result, so that the number of the trough 11 with materials currently positioned in the material discharging position 51 can be conveniently calculated.

The present invention provides a sheet stacker, as shown in fig. 1, which in an exemplary embodiment includes a feeding mechanism 10, a discharging mechanism 20, a monitoring unit 30, and a control unit 40.

The feed mechanism 10 has a number of pockets 11 arranged in its conveying direction S, i.e. in the direction of the conveyor belt 13 of the feed mechanism 10. The feed mechanism 10 is capable of driving the chute 11 to a discharge level 51. The number of the material grooves 11 corresponding to the material discharging amount 51 is greater than or equal to a preset material discharging amount, and in the present exemplary embodiment, the number of the material grooves 11 corresponding to the material discharging amount 51 is equal to the preset material discharging amount (the material discharging amount is, for example, 11). The feed mechanism 10 is also capable of driving a plurality of the troughs 11 one by one to an upstream station 52. The upstream station 52 and the discharge level 51 are arranged along the conveying direction S of the conveyor 10, in particular, for example, adjacently, i.e. one trough 11 enters the discharge level 51 immediately after being removed from the upstream station 52. The blanking mechanism 20 is able to move material in the chute 11 at the blanking level 51 out of the chute 11 for bagging. The monitoring unit 30 is capable of monitoring the material condition of the trough 11 at the upstream station 52.

The control unit 40 is connected to the monitoring unit 30 and is capable of determining whether the material is present in the trough 11 located at the upstream station 52 based on the monitoring result of the monitoring unit 30. When it is determined that there is material in the trough 11 located at the upstream station 52, the control unit 40 can calculate the number of the trough 11 with material currently located at the discharging level 51 and determine whether the number of the trough 11 with material currently located at the discharging level 51 is equal to the discharging number. If the determination result is yes, the control unit 40 can control the discharging mechanism 20 to move the material in the material groove 11 positioned in the discharging position 51 out of the material groove 11, and if the determination result is no, the control unit 40 can control the discharging mechanism 20 not to operate. When determining that the trough 11 located at the upstream station 52 is deficient in material, the control unit 40 can calculate the number of the trough 11 with material currently located at the discharging level 51 and determine whether the number of the trough 11 with material currently located at the discharging level 51 is smaller than the discharging number. If the determination result is negative, the control unit 40 can control the discharging mechanism 20 to move the material in the material groove 11 located in the discharging position 51 out of the material groove 11, and if the determination result is positive, the control unit 40 can control the discharging mechanism 20 not to operate.

This reason piece stacker, the material condition in the silo 11 of monitoring the upstream station 52 through the monitoring unit 30 judges in advance whether the material quantity that is located down material level 51 satisfies the packing requirement, then does not carry out the packing when not satisfying the packing requirement, need not artifical later stage investigation, effectively improves the qualification rate of product and uses manpower sparingly.

In the illustrated embodiment, the control unit 40 is capable of calculating the number of material-containing bins 11 currently located at the discharge level 51 based on the operating conditions of the feed mechanism 10 and the discharge mechanism 20 and the monitoring of the material condition of the bins 11 located at the upstream station 52. The specific position of each trough 11 can be obtained according to the operation condition of the material conveying mechanism 10, which trough 11 materials are moved out by the material discharging mechanism 20 can be obtained according to the operation condition of the material discharging mechanism 20, and which trough 11 lacks materials when entering the material discharging position 51 can be obtained according to the monitoring result, so that the number of the trough 11 with materials currently positioned in the material discharging position 51 can be conveniently calculated.

In the illustrated embodiment, the feed mechanism 10 includes a plurality of conveyor rollers 12, a conveyor belt 13, and a plurality of vanes 14. The axial direction of the transfer roller 12 is perpendicular to the conveying direction S of the feed mechanism 10. The conveyor belt 13 is wound around a plurality of conveyor rollers 12 to form a plurality of straight run sections 131 (i.e., portions extending in a straight line) and a plurality of corner sections 132 (i.e., portions extending along the surfaces of the conveyor rollers) of the conveyor belt 13.

The plurality of blades 14 are disposed on the conveyor belt 13 and are aligned along the conveying direction S of the feeding mechanism 10. Each blade 14 has a sheet shape disposed perpendicularly to the conveying direction S of the conveying mechanism 10. A trough 11 is formed between two adjacent vanes 14. The blades 14 in the same straight run 131 are parallel to each other to grip the material in the trough 11. The upstream station 52 and the blanking level 51 correspond to a straight run 131 of the conveyor belt 13, and in a first corner section 132 of the straight run 131 downstream of the conveying direction S of the conveyor 10, the maximum angle between two adjacent blades 14 is greater than a blanking angle to automatically release the material in the respective chute 11 under the influence of gravity. When the included angle between two adjacent blades 14 is smaller than or equal to the discharging angle, the material is still clamped by the two blades 14. The structure can realize automatic release of materials.

In the illustrated embodiment, the blanking mechanism 20 includes a pusher 21. The pusher 21 is movable in a pushing direction F to push material located in the chute 11 of the blanking level 51 out of the chute 11. The structure is simple and the stability is good.

In the exemplary embodiment, the monitoring unit 30 is configured as a photosensor to achieve good monitoring accuracy.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of features, without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The control method of the sheet arranging and stacking machine, the said sheet arranging and stacking machine includes a feeding mechanism and a blanking mechanism, the feeding mechanism has several feed slots arranged along its conveying direction, the feeding mechanism can drive the feed slot to a blanking level, the number of the feed slots corresponding to blanking level is greater than or equal to a preset blanking number, the blanking mechanism can move the supplies in the feed slot located in blanking level out of the feed slot, the feeding mechanism can also drive several feed slots to an upstream station one by one, the upstream station and blanking level are distributed along conveying direction of the feeding mechanism, characterized by comprising:

monitoring the material condition of a trough positioned at an upstream station;

when the material in the material groove at the upstream station is detected, calculating the number of the material groove at the current material position and judging whether the number of the material groove at the current material position is equal to the material discharging number, if so, controlling the material discharging mechanism to move the material in the material groove at the material position out of the material groove, and if not, controlling the material discharging mechanism not to operate; and

when the material shortage of the material groove at the upstream station is detected, the number of the material groove at the current material discharging position is calculated, whether the number of the material groove at the current material discharging position is smaller than the material discharging number is judged, if not, the material discharging mechanism is controlled to move the material in the material groove at the material discharging position out of the material groove, and if so, the material discharging mechanism is controlled not to operate.

2. The control method of a sheet stacker according to claim 1, wherein the number of the material-containing material tanks currently located at the discharging position is calculated based on the operation conditions of the feeding mechanism and the discharging mechanism and the monitoring results of the material conditions of the material tanks located at the upstream position.

3. Reason piece stacker, its characterized in that includes:

a feeding mechanism (10) which is provided with a plurality of feed tanks (11) arranged along the conveying direction (S) and can drive the feed tanks (11) to a discharging position (51), the quantity of the feed tanks (11) corresponding to the discharging position (51) is larger than or equal to a preset discharging quantity, the feeding mechanism (10) can also drive the feed tanks (11) to an upstream station (52) one by one, and the upstream station (52) and the discharging position (51) are distributed along the conveying direction (S) of the feeding mechanism (10);

-a blanking mechanism (20) capable of moving material located in the trough (11) of the blanking level (51) out of the trough (11);

-a monitoring unit (30) capable of monitoring the condition of the material of said chute (11) at said upstream station (52); and

a control unit (40) connected to the monitoring unit (30) and capable of judging whether or not the material in the material tank (11) located at the upstream station (52) is present based on the monitoring result of the monitoring unit (30), the control unit (40) being capable of calculating the number of the material tank (11) currently located at the downstream station (51) having the material and judging whether or not the number of the material tank (11) currently located at the downstream station (51) having the material is equal to the blanking number, the control unit (40) being capable of controlling the blanking mechanism (20) to move the material in the material tank (11) located at the upstream station (52) out of the material tank (11) if the judging result is no, the control unit (40) being capable of controlling the blanking mechanism (20) not to operate if the judging result is no, calculating the number of the material in the material tank (11) currently located at the upstream station (52) having the material is smaller than the current number of the material tank (11) if the judging result is no material in the material tank (11) located at the upstream station (51), the control unit (40) can control the blanking mechanism (20) to move materials in the material groove (11) located at the blanking level (51) out of the material groove (11), and if the judgment result is yes, the control unit (40) can control the blanking mechanism (20) not to operate.

4. A sheet handling stacker according to claim 3, wherein said control unit (40) is capable of calculating the number of said bins (11) currently having material at said blanking level (51) based on the operation of said feed mechanism (10) and said blanking mechanism (20) and the monitoring of the condition of the material of said bins (11) at said upstream station (52).

5. A sheet handling stacker according to claim 3 wherein said feed mechanism (10) comprises:

a plurality of conveying rollers (12), the axial direction of the conveying rollers (12) is perpendicular to the conveying direction (S) of the conveying mechanism (10), a conveying belt (13) which is wound on the conveying rollers (12) to form a plurality of straight sections (131) and a plurality of corner sections (132) of the conveying belt (13), and

the plurality of blades (14) are arranged on the conveyor belt (13) and are arranged along the conveying direction (S) of the conveying mechanism (10), each blade (14) is in a sheet shape perpendicular to the conveying direction (S) of the conveying mechanism (10) and is positioned on the same straight running section (131), the blades (14) are parallel to each other, a trough (11) is formed between two adjacent blades (14), the upstream station (52) and the discharging position (51) correspond to one straight running section (131) of the conveyor belt (13), and the first corner section (132) of the straight running section (131) along the conveying direction (S) of the conveying mechanism (10) is positioned at the downstream of the first corner section (132), and the maximum included angle between the two adjacent blades (14) is larger than a discharging angle so as to automatically release materials in the corresponding trough (11).

6. A sheet handling stacker according to claim 3, wherein said blanking mechanism (20) comprises a pusher (21), said pusher (21) being movable in a pushing direction (F) to push material located in said trough (11) of said blanking level (51) out of said trough (11).

7. A sheet handling stacker according to claim 3 wherein said monitoring unit (30) is arranged as a photoelectric sensor.