Offline lunch box trimming machine

Abstract

The present invention discloses an off-line edge trimming machine for meal boxes, comprising an edge trimming machine and an automatic feeding mechanism for meal blanks and an automatic unloading mechanism for meal boxes located beside the edge trimming machine. The automatic feeding mechanism for meal blanks comprises a stacking bin for stacking meal blanks in a height direction and a feeding robot for taking out meal blanks from the stacking bin and transferring them to the edge trimming machine. The edge trimming machine performs edge trimming on the meal blanks transferred by the feeding robot so that the meal blanks are processed into meal boxes. The automatic unloading mechanism for meal boxes comprises a meal box conveyor line, an unloading robot and a lifting and lowering device, and the lifting and lowering device comprises a supporting frame and an lifting and lowering driver. The unloading robot takes out the meal box at the edge trimming machine and transfers it to the supporting frame. The supporting frame places the meal box on the meal box conveyor line under the action of the lifting and lowering driver, and the meal box conveyor line conveys the meal box to the next workstation, so as to realize the purpose of automatically feeding meal blanks, trimming the meal blanks to form meal boxes, and automatically unloading the meal boxes.

Description

Technical Field

[0001] The invention relates to the field of lunch box production, and in particular to an offline lunch box trimming machine capable of automatically loading lunch blanks, automatically trimming the lunch blanks to form lunch boxes, and automatically unloading the lunch boxes. Background Art

[0002] With the continuous development of economy and the continuous progress of science and technology, people's lives are provided with extremely rich material consumer goods, and lunch boxes are one of the many material consumer goods.

[0003] As we all know, in the production process of disposable lunch boxes, there are steps of forming wet blanks of lunch boxes, drying the formed wet blanks to form dry blanks (meal blanks), trimming the dry blanks to form lunch boxes, and removing the lunch boxes and waste from the trimmer.

[0004] However, in the existing production process of processing meal blanks into meal boxes, placing the dry blanks into the trimming machine and taking out the meal boxes and waste from the trimming machine are all done manually by operators, which has the disadvantages of heavy burden on operators, low efficiency and poor safety.

[0005] Therefore, it is necessary to provide a lunch box off-line trimming machine to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide an offline lunch box trimming machine which can realize automatic loading of lunch blanks, automatic trimming of lunch blanks to form lunch boxes and automatic unloading of lunch boxes.

[0007] To achieve the above object, the technical solution of the present invention is: to provide an off-line lunch box trimming machine, including a trimming machine and an automatic meal blank feeding mechanism and a lunch box unloading mechanism located beside the trimming machine. The automatic feeding mechanism for meal blanks comprises a stacking bin for stacking meal blanks in a height direction and a feeding robot for taking out the meal blanks in the stacking bin and transferring them to the trimming machine, and the trimming machine performs trimming on the meal blanks transferred by the feeding robot so that the meal blanks are processed into meal boxes; the automatic unloading mechanism for meal boxes comprises a meal box conveyor line, an unloading robot and a lifting and lowering device, and the lifting and lowering device comprises a supporting frame located above the meal box conveyor line and staggered with each other, and a lifting and lowering driver for driving the supporting frame to perform lifting and lowering movements in a height direction; the unloading robot takes out the meal box at the trimming machine and transfers it to the supporting frame, and the supporting frame places the meal box on the meal box conveyor line under the action of the lifting and lowering driver, and the meal box conveyor line conveys the meal box to the next workstation.

[0008] Preferably, the automatic feeding mechanism for meal blanks further comprises a first feeding frame, a lifting device and a second feeding frame, the stacking bin is slidably arranged on the first feeding frame along the length direction of the first feeding frame, the lifting device comprises a lifting member and a lifting driver, the lifting member is slidably arranged on the first feeding frame along the height direction of the first feeding frame, the lifting member is also located at the corresponding lower part of the stacking bin and is directly opposite to the meal blanks in the stacking bin, the lifting driver is installed on the first feeding frame and drives the lifting member to lift the meal blanks in the stacking bin upwards, the second feeding frame is spanned above the first feeding frame along the width direction of the first feeding frame so that the second feeding frame surrounds the first feeding frame from its top and both sides, the second feeding frame is also arranged side by side with the trimming machine, the feeding robot is installed on the second feeding frame and is located at the corresponding upper part of the stacking bin, the feeding robot is responsible for taking away the meal blanks lifted by the lifting device in the stacking bin and transferring them to the trimming machine.

[0009] Preferably, the automatic unloading mechanism for lunch boxes also includes a first unloading frame and a second unloading frame, the first unloading frame, the trimmer and the second loading frame are arranged side by side in sequence along the width direction of the first loading frame, the lunch box conveyor line is installed on the first unloading frame and conveys the lunch boxes along the width direction of the first loading frame, the second unloading frame spans above the first unloading frame along the length direction of the first loading frame, so that the second unloading frame surrounds the first unloading frame from its top and both sides, the supporting frame is slidably disposed on the first unloading frame along the height direction of the first loading frame, the lifting and lowering drive is installed on the first unloading frame, and the unloading robot is installed on the second unloading frame and located above the corresponding supporting frame.

[0010] Preferably, the lunch box conveyor line includes a main roller, a slave roller, at least two belts sleeved on the main roller and the slave roller, and a driving motor to drive the main roller to rotate, the main roller is spaced apart from the slave roller along the width direction of the first feeding frame so that the belt is arranged along the width direction of the first feeding frame, and all the belts are also spaced apart from each other along the length direction of the first feeding frame, the supporting frame includes a supporting slide and the same number of supporting arms as the belts, each of the supporting arms is located above a corresponding one of the belts, and each of the supporting arms is staggered with a corresponding one of the belts, the supporting slide is slidably disposed on the first unloading frame and fixedly connected to the supporting arm, a plurality of guide partitions are installed on the first unloading frame, all of the guide partitions are spaced apart from each other along the length direction of the first feeding frame, a guide channel is enclosed between two adjacent guide partitions, and each of the guide channels has one of the belts built in.

[0011] Preferably, the unloading robot includes a unloading slide, a unloading translation arm, a unloading lifting drive, a vacuum suction head and a translation drive. The unloading slide is slidably arranged at the top of the second unloading frame along the width direction of the first loading frame. The unloading translation arm is located directly below the unloading slide. The unloading lifting drive is mounted on the unloading slide and drives the unloading translation arm to move closer to or away from the supporting frame. The vacuum suction head is mounted on the unloading translation arm and protrudes downward from the unloading translation arm. The translation drive drives the unloading slide to reciprocate on the second unloading frame.

[0012] Preferably, the lunch box offline trimming machine of the present invention also includes a waste conveying line for conveying waste along the length direction of the first feeding frame, the waste conveying line is located between the lifting and lowering device and the trimming machine along the width direction of the first feeding frame, the vacuum suction head includes a waste suction head and a lunch box suction head spaced apart from each other, the waste suction head and the lunch box suction head are each assembled on the unloading translation arm, and the waste suction head takes out the waste from the trimming machine and transfers it to the waste conveying line under the coordinated action of the translation drive and the unloading lifting drive.

[0013] Preferably, the automatic feeding mechanism for meal blanks also includes a flexible brush, the stacking silo includes a silo frame and a stacking cavity surrounded by the silo frame and with the cavity opening facing upward, the silo frame is slidably disposed on the first feeding frame, the brush is mounted on the silo frame and protrudes into the cavity opening of the stacking cavity, and the brush is also aligned with the edge of the meal blanks in the stacking cavity in the height direction.

[0014] Preferably, the silo skeleton includes a bottom slide and columns installed on the bottom slide, the columns are arranged in a matrix on the bottom slide, the columns and the bottom slide together enclose at least two rows of the stacking cavities, and the columns located between two adjacent rows of the stacking cavities are installed with the brushes.

[0015] Preferably, the loading robot includes a loading slide, a loading translation arm, a first lifting drive, a first suction nozzle, a second suction nozzle, a second lifting drive for driving the second suction nozzle to lift and lower, and a translation motor installed on the second loading frame, the loading slide is slidably arranged at the top of the second loading frame along the width direction of the first loading frame, the loading translation arm is located directly below the loading slide, the first lifting drive is mounted on the loading slide and drives the loading translation arm to move closer to or away from the stacking bin, the first suction nozzle is mounted on the loading translation arm and protrudes downward from the loading translation arm, and the first suction nozzle is pressed against the top surface of the topmost meal blank in the stacking cavity when the loading translation arm approaches the stacking bin. The second lifting drive is mounted on the feeding translation arm, the second suction nozzle and the first suction nozzle are spaced apart from each other, the first suction nozzle is lower than the second suction nozzle, the second suction nozzle is mounted on the output end of the second lifting drive, and the second suction nozzle is also arranged downward, and the second suction nozzle, under the action of the second lifting drive, sucks the second side edge of the top surface of the topmost meal blank and pulls the second side edge upward, and the brush passes over the second side edge of the top surface of the meal blank and scrapes the meal blank adjacent below during the process of the second suction nozzle pulling up the second side edge of the top surface of the topmost meal blank sucked by the second suction nozzle, so that the topmost meal blank and the meal blank adjacent below are separated from each other, and the translation motor drives the feeding slide to reciprocate on the second feeding frame.

[0016] Preferably, the automatic feeding mechanism for meal blanks further comprises an air blowing nozzle, which is mounted on the feeding translation arm and arranged downward, and is also located beside the second suction nozzle.

[0017] Compared with the prior art, with the aid of an automatic meal blank feeding mechanism comprising a stacking bin and a feeding robot, the meal blanks are first stacked in batches on the stacking bin to improve the meal blank storage capacity, and with the aid of the feeding robot, the meal blanks in the stacking bin are automatically taken out in sequence and transferred to the trimming machine, which trims the meal blanks to form meal boxes after trimming; with the aid of an automatic meal box unloading mechanism comprising a meal box conveyor line, a lifting and lowering device and an unloading robot, the unloading robot automatically takes out the meal boxes of the trimming machine in sequence and transfers them to the supporting machine of the lifting and lowering device The meal boxes are placed on the supporting frame, and with the cooperation of the lifting and lowering drive, the unloading robot transfers the lunch boxes from the trimming machine to the supporting frame for stacking one by one, so as to achieve the purpose of batch storage of the lunch boxes on the supporting frame; and when the lifting and lowering drive drives the supporting frame to descend to the bottom of the lunch box conveyor line after batch storage, the lunch boxes on the supporting frame are transferred to the lunch box conveyor line, and the lunch box conveyor line conveys the lunch boxes to the next workstation; therefore, the lunch box offline trimming machine of the present invention can achieve the purposes of automatic loading of meal blanks, automatic trimming of meal blanks to form lunch boxes and automatic unloading of meal boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the lunch box off-line trimming machine of the present invention.

[0019] Figure 2 yes Figure 1 The planar structure diagram of the automatic feeding mechanism for meal blanks shown in FIG. 1 is projected along the direction indicated by arrow A.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the automatic feeding mechanism of meal blanks in the offline edge trimming machine for meal boxes of the present invention after hiding the second feeding frame and the feeding manipulator.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of a feeding robot on the automatic feeding mechanism for meal blanks in the off-line edge trimming machine for meal boxes of the present invention, with the translation motor hidden.

[0022] Figure 5 yes Figure 4 The three-dimensional structural schematic diagram of the loading robot when sucking meal dough is shown.

[0023] Figure 6 It is a partial schematic diagram showing the relationship between the first suction nozzle, the second suction nozzle, the blowing nozzle and the brush of the automatic feeding mechanism of the meal blanks in the off-line edge trimming machine for meal boxes of the present invention and the meal blanks in the stacking cavity of the stacking bin.

[0024] Figure 7 yes Figure 1 The planar structure schematic diagram of the automatic feeding mechanism for lunch boxes shown in FIG. 1 is projected along the direction indicated by arrow A.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the automatic lunch box unloading mechanism in the lunch box off-line trimming machine of the present invention after hiding the second unloading frame and the unloading manipulator.

[0026] Fig. 9 It is a structural schematic diagram of a lunch box conveying line of an automatic lunch box unloading mechanism in a lunch box off-line trimming machine of the present invention.

[0027] Fig.10 This is a schematic diagram of the structure of the waste conveying line in the lunch box off-line trimming machine of the present invention. DETAILED DESCRIPTION

[0028] Embodiments of the present invention will now be described with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout the several views.

[0029] See also Figure 1 and Figure 8 The meal box offline trimming machine 1000 of the present invention comprises a trimming machine 300 and an automatic meal blank feeding mechanism 100 and an automatic meal box unloading mechanism 500 located beside the trimming machine 300. Preferably, the automatic meal blank feeding mechanism 100, the trimming machine 300 and the automatic meal box unloading mechanism 500 are arranged side by side in the same direction (e.g., the direction indicated by arrow B) so that they are arranged in a row to obtain the advantage of a more compact structural layout, but the invention is not limited thereto. The automatic meal blank feeding mechanism 100 comprises a stacking bin 20 for stacking meal blanks 200 in a height direction and a feeding manipulator 50 for taking out the meal blanks 200 in the stacking bin 20 and transferring them to the trimming machine 300. The trimming machine 300 trims the meal blanks 200 transferred by the feeding robot 50 so that the meal blanks 200 are processed into meal boxes 400. Preferably, the trimming machine 300 is a hydraulic trimming machine to obtain greater trimming power, but it is not limited to this. The automatic unloading mechanism 500 for meal boxes includes a meal box conveyor line 2, a unloading robot 5 and a lifting and lowering device 4. The lifting and lowering device 4 includes a supporting frame 4a located above the corresponding meal box conveyor line 2 and staggered from each other, and a lifting and lowering driver 4b for driving the supporting frame 4a to perform lifting and lowering movements in the height direction (i.e., the direction indicated by arrow C); the unloading robot 5 takes out the meal box 400 at the trimming machine 300 and transfers it to the supporting frame 4a. The supporting frame 4a places the meal box 400 on the meal box conveyor line 2 under the action of the lifting and lowering driver 4b, and the meal box conveyor line 2 transports the meal box 400 to the next station, such as but not limited to the meal box storage container. More specifically, as follows:

[0030] See also Figures 1 to 3The automatic feeding mechanism 100 for meal blanks further comprises a first feeding frame 10, a lifting device 30 and a second feeding frame 40. The stacking bin 20 is slidably disposed on the first feeding frame 10 along the length direction of the first feeding frame 10 (i.e., the direction indicated by arrow A), so that the stacking bin 20 can slide on the first feeding frame 10 to swap the position for storing meal blanks 200, such as the stacking cavity 20b described below; preferably, the stacking bin 20 is slidably disposed on the top of the first feeding frame 10, but is not limited thereto. The lifting device 30 includes a lifting member 30a and a lifting driver 30b. The lifting member 30a is slidably disposed on the first loading frame 10 along the height direction of the first loading frame 10, so that the lifting member 30a can be lifted and slid on the first loading frame 10. The lifting member 30a is also located below the corresponding stacking bin 20 and is directly opposite to the meal base 200 in the stacking bin 20, so that the lifting member 30a can lift up the meal base 200 in the stacking bin 20. The lifting driver 30b is installed on the first loading frame 10 and drives the lifting member 30a to lift up the meal base 200 in the stacking bin 20. The second loading frame 40 is straddled above the first loading frame 10 along the width direction of the first loading frame 10 (i.e., the direction indicated by arrow B), so that the second loading frame 40 surrounds the first loading frame 10 from its top and both sides. The state is shown in FIG. Figure 2 and Figure 3 The feeding robot 50 is installed on the second feeding frame 40 and is located above the stacking bin 20 . The feeding robot 50 is responsible for taking the meal blanks 200 lifted by the lifting device 30 in the stacking bin 20 and transferring them to the trimming machine 30 . Among them, with the help of the stacking silo 20, it is convenient to stack the meal blanks 200 in batches on the stacking silo 20, thereby improving the storage capacity; at the same time, with the help of the stacking silo 20 being slidably arranged on the first feeding frame 10, it is convenient for the stacking silo 20 to exchange positions (such as the stacking cavity 20b) for stacking the meal blanks 200, so that it is convenient to add new meal blanks 200 to the position where the meal blanks 200 have been taken out, thereby improving the continuity of work; with the help of the lifting device 30, each meal blank 200 in the stacking silo 20 is lifted up to a suitable position, thereby ensuring the reliability of the feeding manipulator 50 grabbing the meal blanks 200 each time, and the feeding manipulator 50 reliably transports the meal blanks 200 to the trimming machine 300, so that the meal blank automatic feeding mechanism 100 can realize the automatic feeding of the meal blanks 200 to the trimming machine 300. In detail, as follows:

[0031] like Figure 2 and Figure 3As shown, the automatic feeding mechanism 100 for meal blanks also includes a flexible brush 60. The stacking silo 20 includes a silo frame 20a and a stacking cavity 20b surrounded by the silo frame 20a and with a cavity 21 facing upward. The silo frame 20a is slidably disposed on the first feeding frame 10, and the brush 60 is installed on the silo frame 20a. Preferably, the brush 60 is arranged in the horizontal direction and protrudes from the cavity 21 of the stacking cavity 20b. The brush 60 is also aligned with the edge of the meal blank 200 in the stacking cavity 20b in the height direction (for example, the second side edge of the top surface of the meal blank 200 described below), so that when the feeding robot 50 upwardly removes the meal blank 200 in the stacking cavity 20b from the cavity 21, the brush 60 scrapes the lower part of two adjacent meal blanks 200, so that the two adjacent meal blanks 200 are separated from each other, thereby ensuring the reliability of removing the meal blanks 200 in the stacking cavity 20b one by one. Specifically, the silo skeleton 20a includes a bottom slide 22 and a column 23 installed on the bottom slide 22. The columns 23 are arranged in a matrix on the bottom slide 22. The columns 23 and the bottom slide 22 together enclose at least two rows of stacking cavities 20b to improve the storage capacity and reduce the weight of the silo skeleton 20a. The columns 23 provide sufficient avoidance space for the loading robot 50. The columns 23 located between two adjacent rows of stacking cavities 20b are equipped with brushes 60. Preferably, the same column 23 located between two adjacent rows of stacking cavities 20b is equipped with four brushes 60. The four brushes 60 together enclose an "X" shape. The state is shown in FIG. Figure 3 As shown, this improves the reliability of the brush 60 in separating each meal base 200, but is not limited thereto. More specifically, as Figure 3 As shown, the lifting member 30a includes a lifting slide 31 and a lifting column 32 located in the first feeding frame 10. The lifting slide 31 is slidably arranged on the first feeding frame 10 at opposite sides, and the first feeding frame 10 provides support for the lifting slide 31 to increase the reliability of the lifting slide 31 in lifting and sliding. The lifting column 32 is installed on the lifting slide 31, so that the lifting column 32 and the lifting slide 31 are fixed together. The lifting driver 30b drives the lifting slide 31 to rise and fall through the belt transmission, and the lifting slide 31 drives the lifting column 32 to rise and fall together, so as to lift the meal blank 200 in the stacking cavity 20b. For example, the lifting driver 30b is a motor, so that the rotational motion of the lifting driver 30b is converted into a linear sliding motion of the lifting slide 31, but it is not limited to this. It can be understood that according to actual needs, the lifting driver 30b can also drive the lifting slide 31 to slide through a chain transmission, so it is not limited to this.

[0032] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the loading robot 50 includes a loading slide 51, a loading translation arm 52, a first lifting driver 53, a first suction nozzle 54, a second suction nozzle 55, a second lifting driver 56 for driving the second suction nozzle 55 to rise and fall, and a translation motor 57 installed on the second loading frame 40 (see Figure 1). The loading slide 51 is slidably disposed at the top of the second loading frame 40 along the width direction of the first loading frame 10, so that the loading slide 51 can translate on the second loading frame 40. The loading translation arm 52 is located directly below the loading slide 51, and the first lifting driver 53 is assembled on the loading slide 51 and drives the loading translation arm 52 to move closer to or away from the stacking bin 20, so that the loading translation arm 52 is assembled with the loading slide 51 through the first lifting driver 53, so that the loading translation arm 52 and the first lifting driver 53 follow the loading slide 51 to translate on the second loading frame 40. The first suction nozzle 54 is mounted on the loading translation arm 52 and protrudes downward from the loading translation arm 52. Preferably, the first suction nozzle 54 is mounted at the bottom of the loading translation arm 52 to avoid the first suction nozzle 54 being mounted on the top of the loading translation arm 52 and increasing the height of the first suction nozzle 54. The first suction nozzle 54 is pressed against the topmost meal blank 200 in the stacking cavity 20b when the loading translation arm 52 approaches the stacking bin 20. The second lifting actuator 56 is mounted on the loading translation arm 52, and the loading translation arm 52 provides support for the second lifting actuator 56. Preferably, the second lifting actuator 56 is mounted at the top of the loading translation arm 52, and the second lifting actuator 56 is also side by side with the side wall of the loading translation arm 52. Such a design can reduce the space occupied by the second lifting actuator 56 on the loading translation arm 52, but is not limited thereto. The second suction nozzle 55 is spaced from the first suction nozzle 54, and the first suction nozzle 54 is lower than the second suction nozzle 55. The second suction nozzle 55 is assembled at the output end of the second lifting drive 56, and the second suction nozzle 56 is also arranged downward, so that in the initial position, the first suction nozzle 54 is lower than the second suction nozzle 55. Therefore, during the movement of the loading translation arm 52 approaching the stacking bin 20, the first suction nozzle 54 is pressed against the first side edge of the top surface of the top meal blank 200 in the stacking chamber 20b before the second suction nozzle 55, while the second suction nozzle 56 reaches the second side edge of the top surface of the top meal blank 200 in the adsorption stacking chamber 20b under the drive of the second lifting drive 56, and sucks the second side edge of the top surface of the top meal blank 200, that is, the second suction nozzle 55 sucks the second side edge of the top surface of the top meal blank 200 under the action of the second lifting drive 56, and pulls the second side edge of the top surface of the meal blank 200 upward. When the second suction nozzle 55 pulls up the second side edge of the top surface of the uppermost meal base 200 sucked by the second suction nozzle 55, the brush 60 passes over the second side edge of the top surface of the meal base 200 and scrapes the meal base 200 immediately below, so that the uppermost meal base 200 and the meal base 200 immediately below are separated from each other. The translation motor 57 drives the loading slide 51 to reciprocate on the second loading frame 40, so as to meet the requirement that the loading slide 51 finally drives the first suction nozzle 54 and the second suction nozzle 55 to slide to the top of the stacking chamber 20b. Specifically, as Figure 6As shown, in order to improve the reliability of separation between the top meal blank 200 in the stacking cavity 20b and the meal blank 200 immediately below, the automatic meal blank feeding mechanism 100 also includes an air blowing nozzle 58. The air blowing nozzle 58 is mounted on the feeding translation arm 52 and arranged downward, and the air blowing nozzle 58 is also located beside the second suction nozzle 56; therefore, when the second suction nozzle 56 pulls up the second side edge of the top surface of the top meal blank 200 in the stacking cavity 20b, the air blowing nozzle 58 blows air between the top meal blank 200 in the stacking cavity 20b and the meal blank 200 immediately below, breaking the vacuum between the two, thereby making the separation between the top meal blank 200 in the stacking cavity 20b and the meal blank 200 immediately below smoother and more reliable, but not limited to this. More specifically, as Figure 2 , Figure 4 and Figure 5 As shown, the loading translation arm 52 includes at least two cantilevers 52a arranged side by side and spaced apart from each other along the length direction of the first loading frame 10 (i.e., the direction indicated by arrow A) and a base arm 52b fixing the cantilevers 52a together. The base arm 52b is installed at the output end of the first lifting drive 53, and each cantilever 52a is respectively installed with a first suction nozzle 54, a second suction nozzle 55 and a second lifting drive 56 to increase the number of meal blanks 200 taken out each time. Preferably, in the same cantilever 52a, there are two first suction nozzles 54 and spaced apart from each other in the length direction of the cantilever 52a, there are two second suction nozzles 55 and spaced apart from each other in the length direction of the cantilever 52a, and all the second suction nozzles 55 are located between the first suction nozzles 54, and each second suction nozzle 55 corresponds to a second lifting drive 56, so that the first suction nozzle 54 and the second suction nozzle 55 on each cantilever 52a can suck two meal blanks 200, but it is not limited thereto. For example, the first lifting driver 53 and the second lifting driver 56 are cylinders. Of course, hydraulic cylinders or linear motors can be selected according to actual needs, and the present invention is not limited thereto.

[0033] Such as 4 and Figure 5 As shown, in order to improve the reliability and smoothness of the lifting and translation of the loading translation arm 52, the loading robot 50 also includes a lifting guide assembly 59 located on the side of the first lifting drive 53. Preferably, the lifting guide assemblies 59 are respectively located around the first lifting drive 53, and the output end of the first lifting drive 53 is arranged downward to increase the smoothness and stability of the lifting and translation of the loading translation arm 52, but is not limited to this; specifically, the lifting guide assembly 59 includes a lifting guide rod 591 and a lifting guide sleeve 592, the lifting guide rod 591 is installed at one of the loading translation arm 52 and the loading slide 51, and the lifting guide sleeve 592 is installed at the other of the loading translation arm 52 and the loading slide 51, and the lifting guide sleeve 592 can be slidably mounted on the lifting guide rod 591 to simplify the structure of the lifting guide assembly 59.

[0034] See also Figures 1 to 6In the loading robot 50, with the help of the loading slide 51, the loading translation arm 52, the first lifting driver 53, the first suction nozzle 54, the second suction nozzle 55, the second lifting driver 56 and the translation motor 57, and in combination with the brush 60, when the translation motor 57 finally makes the first suction nozzle 54 and the second suction nozzle 55 slide to the top of the stacking chamber 20b, the first lifting driver 53 drives the loading translation arm 52 to move close to the stacking bin 20, so that the first suction nozzle 54 first presses against the stacking chamber 20b. At the first side edge of the top surface of the uppermost meal base 200 in the stacking cavity 20b, the second side edge of the top surface of the uppermost meal base 200 in the stacking cavity 20b is tilted upward; at this time, the second lifting driver 56 drives the second suction nozzle 55 to descend until the second suction nozzle 55 can suck the second side edge of the top surface of the uppermost meal base 200 in the stacking cavity 20b; then, when the second suction nozzle 55 sucks the second side edge of the top surface of the uppermost meal base 200 in the stacking cavity 20b, The second lifting driver 56 drives the second suction nozzle 55 to rise, so as to pull up the second side edge of the top surface of the uppermost meal blank 200 in the stacking chamber 20b, so that the second side edge of the top surface of the pulled-up meal blank 200 passes over the brush 60 and is located above the brush 60, while the brush 60 scrapes the meal blank 200 immediately below, so that the uppermost meal blank 200 is separated from the meal blank 200 immediately below. The arm 52 moves away from the stacking bin 20, and the loading translation arm 52 drives the first suction nozzle 54 and the second suction nozzle 55 to jointly take out the top meal 200; after the meal 200 is taken out from the stacking chamber 20b, the translation motor 57 finally drives the first suction nozzle 54 and the second suction nozzle 55 to jointly send the sucked meal 200 into the trimming machine 300; the above process is repeated continuously, so as to achieve the purpose of separating, taking out and sending the meal 200 layer by layer to the trimming machine 300. It should be noted that in the process of the loading manipulator 50 sucking the meal 200 in the stacking chamber 20b, the lifting device 30 lifts the meal 200 in the stacking chamber 20b upwards to better meet the feeding manipulator 50's need to grab the meal 200.

[0035] See also Figure 1 , Figure 7 and Figure 8The automatic unloading mechanism 500 for lunch boxes also includes a first unloading frame 1 and a second unloading frame 3. The first unloading frame 1, the trimmer 300 and the second loading frame 40 are arranged side by side in sequence along the width direction of the first loading frame 10, so that the trimmer 300 is located between the first unloading frame 1 and the second loading frame 40. The lunch box conveyor line 2 is installed on the first unloading frame 1 and conveys the lunch boxes 400 along the width direction of the first loading frame 10 (i.e., the direction indicated by arrow B) to convey the lunch boxes 400 to the next workstation. The second unloading frame 3 spans above the first unloading frame 1 along the length direction of the first loading frame 10 (i.e., the direction indicated by arrow A), so that the second unloading frame 3 surrounds the first unloading frame 1 from its top and both sides. The state is shown in FIG. Figure 1 As shown, the layout between the first unloading frame 1 and the second unloading frame 3 is more reasonable and compact. The supporting skeleton 4a is slidably arranged on the first unloading frame 1 along the height direction of the first loading frame 10 (i.e., the direction indicated by the arrow C), so that the supporting skeleton 4a can place the lunch box 400 on the lunch box conveyor line 2 when it slides downward to the bottom of the lunch box conveyor line 2, or is used to support the lunch box 400 taken by the unloading robot 5 when it slides upward to the top of the lunch box conveyor line 2. The lifting and lowering drive 4b is installed on the first unloading frame 1. The unloading robot 5 is installed on the second unloading frame 3 and is located above the corresponding supporting skeleton 4a. Specifically, as shown in FIG. Figure 1 , Figure 8 and Fig. 9As shown, the lunch box conveyor line 2 comprises a main roller 2a, a slave roller 2b, at least two belts 2c sleeved on the main roller 2a and the slave roller 2b, and a driving motor 2d for driving the main roller 2a to rotate. The main roller 2a is spaced apart from the slave roller 2b along the width direction of the first feeding frame 10, so that the belt 2c is arranged along the width direction of the first feeding frame 10, and the structure of the lunch box conveyor line 2 is simplified, and it is also ensured that the lunch box conveyor line 2 can more reliably convey the lunch box 400, but it is not limited thereto. All belts 2c are also separated from each other along the length direction of the first loading frame 10; the supporting frame 4a includes a supporting slide 411 and a supporting arm 412 of the same number as the belts 2c, each supporting arm 412 is located above a corresponding belt 2c, and each supporting arm 412 is staggered with a corresponding belt 2c, the supporting slide 411 is slidably arranged on the first unloading frame 1 and fixedly connected to the supporting arm 412, the purpose of such design is to increase the temporary storage capacity of the supporting frame 4a for the meal boxes 400 transferred by the unloading manipulator 5, and the ability of the meal box conveyor line 2 to convey the meal boxes 400, and also facilitate the sorting and packaging of the meal boxes 400. A plurality of guide partitions 6 are installed on the first unloading frame 1, all of which are separated from each other along the length direction of the first loading frame 10, and a guide channel 7 is enclosed between two adjacent guide partitions 6, and each guide channel 7 has a belt 2c built therein, so as to improve the reliability of the meal box conveyor line 2 in conveying the meal boxes 400, but not limited thereto. For example, the lifting and lowering driver 4b is a rotary motor, which drives the supporting frame 4a to rise and fall through a belt drive. Of course, according to actual needs, the rotary motor can also drive the supporting frame 4a to rise and fall through a chain drive; preferably, Figure 7 As shown, one way to realize that the rotating motor drives the supporting frame 4a through belt transmission is: a lifting main pulley 4c and a lifting slave pulley 4d spaced apart from each other in the height direction are installed on the first unloading frame 1, and the lifting main pulley 4c and the lifting slave pulley 4d are sleeved with a lifting belt 4e, and the supporting slide 411 of the supporting frame 4a is fixedly connected to the lifting belt 4e. Therefore, in the process of the rotating motor driving the lifting main pulley 4c to rotate, and with the cooperation of the lifting slave pulley 4d, the lifting belt 4e is made to rotate in a rotary motion, so that the lifting belt 4e that is performing the rotating motion drives the supporting frame 4a to rise and fall, so it is not limited to this.

[0036] like Figure 1 and Figure 7As shown, the unloading manipulator 5 includes an unloading slide 5a, an unloading translation arm 5b, an unloading lifting driver 5c, a vacuum suction head 5d and a translation driver 5e. The unloading slide 5a is slidably arranged at the top of the second unloading frame 3 along the width direction of the first loading frame 10, so that the unloading slide 5a slides on the first unloading frame 1. The unloading translation arm 5b is located directly below the unloading slide 5a, and the unloading lifting driver 5c is assembled on the unloading slide 5a and drives the unloading translation arm 5b to move closer to or away from the supporting frame 4a. The vacuum suction head 5d is assembled on the unloading translation arm 5b and protrudes downward from the unloading translation arm 5b, so that the vacuum suction head 5d can suck the lunch box 400. The translation driver 5e drives the unloading slide 5a to reciprocate on the second unloading frame 3. Specifically, the lunch box offline trimming machine 1000 of the present invention further includes a waste conveying line 600 for conveying waste along the length direction of the first loading frame 10, and the waste conveying line 600 is located between the lifting and lowering device 4 and the trimming machine 300 along the width direction of the first loading frame 10; the vacuum suction head 5d includes a waste suction head 511 and a lunch box suction head 512 spaced apart from each other, and the waste suction head 511 and the lunch box suction head 512 are respectively assembled on the unloading translation arm 5b, and the waste The suction head 511 takes out the waste from the trimmer 300 and transfers it to the waste conveying line 600 under the coordinated action of the translation driver 5e and the unloading lifting driver 5c. Similarly, the lunch box suction head 512 takes out the lunch box 400 from the trimmer 300 and transfers it to the supporting frame 4a under the coordinated action of the translation driver 5e and the unloading lifting driver 5c, so that the waste can be taken away together with the lunch box 400 from the trimmer 300, thereby achieving higher efficiency.

[0037] like Figure 1 and Figure 7 As shown, in order to better transfer the waste at the trimming machine 300 to the waste conveying line 600 and collect the waste, the lunch box offline trimming machine 1000 of the present invention also includes a waste chute 700 and a waste recovery container 800. The waste chute 700 is obliquely arranged between the trimming machine 300 and the waste conveying line 600, and the waste recovery container 800 is located on the side of the waste conveying line 600 along the conveying direction of the waste conveying line 600 (i.e., the length direction of the first feeding frame 10). For example, as Fig.10 As shown, the waste conveying line 600 includes a conveying motor 610, a conveying belt 620, a waste main pulley 630 and a waste secondary pulley 640. The waste main pulley 630 and the waste secondary pulley 640 are spaced apart from each other along the length direction of the first loading frame 10 and are each installed on the first unloading frame 1. The conveying belt 620 is sleeved on the waste main pulley 630 and the waste secondary pulley 640. The conveying motor 610 is installed on the first unloading frame 1 and drives the waste main pulley 630 to rotate, so as to simplify the structure of the waste conveying line 600.

[0038] At the same time, if Figure 4and Figure 5 As shown, the unloading translation arm 5b includes at least two suspension arms 521 spaced apart from each other and arranged side by side along the length direction of the first loading frame 10 and a translation base 522 fixing the suspension arms 521 together. The translation base 522 is installed at the output end of the unloading lifting drive 5c. Each suspension arm 521 is respectively installed with a waste suction head 511 and a lunch box suction head 512 to improve the ability to remove the lunch box 400 and waste, but not limited to this. For example, the translation drive 5e is a stepper motor, which drives the unloading slide 5a to translate on the second unloading frame 3 through a belt drive or a chain drive; preferably, as Fig. 9 As shown, one way to realize that the stepper motor drives the unloading slide 5b through belt transmission is: a main translation pulley 5f and a slave translation pulley 5g are installed on the top of the second unloading frame 3, which are spaced from each other along the width direction of the first loading frame 10. The main translation pulley 5f and the slave translation pulley 5g are sleeved with a translation belt 5h, and the unloading slide 5a is fixedly connected to the translation belt 5h. Therefore, in the process of the stepper motor driving the main translation pulley 5f to rotate, and with the cooperation of the slave translation pulley 5g, the translation belt 5h is made to rotate in a rotating manner, so that the unloading slide 5a is driven by the rotating translation belt 5h to slide on the second unloading frame 3, and finally the vacuum suction head 5d is moved to the top of the trimming machine 300 or the supporting frame 4a, so it is not limited to this.

[0039] Among them, in the automatic unloading mechanism 500 for lunch boxes, with the help of the second unloading frame 3, it spans over the top of the first unloading frame 1 along the length direction of the first loading frame 10, and the second unloading frame 3 surrounds the first unloading frame 1 from its top and both sides, so that the lunch box conveyor line 2 and the lifting and lowering device 4 installed on the first unloading frame 1 and the unloading manipulator 5 installed on the second unloading frame 3 are reasonably and compactly arranged in space to improve their coordinated and coherent work; with the help of the cooperation of the unloading manipulator 5 and the lifting and lowering device 4, the unloading manipulator 5 takes away the lunch boxes 400 of the trimmer 300 and places them in batches on the supporting frame 4a of the lifting and lowering device 4, and then the lifting and lowering driver 4b drives the supporting frame 4a to descend downward, so that the downward descending supporting frame 4a places the lunch boxes 400 thereon on the lunch box conveyor line 2, and the lunch box conveyor line 2 is transported to the next station, thereby achieving the purpose of automatic unloading of the lunch boxes 400.

[0040] Compared with the prior art, with the aid of an automatic meal blank feeding mechanism 100 including a stacking bin 20 and a feeding robot 50, the meal blanks 200 are first stacked in batches on the stacking bin 20 to improve the storage capacity of the meal blanks 200, and with the aid of the feeding robot 50, the meal blanks 200 in the stacking bin 20 are automatically taken out in sequence and transferred to the trimming machine 300, and the trimming machine 300 performs trimming on the meal blanks 200 so that the trimmed meal blanks 200 form a meal box 400; with the aid of an automatic meal box unloading mechanism 500 including a meal box conveyor line 2, a lifting and lowering device 4 and a unloading robot 5, the unloading robot 5 automatically takes out the meal boxes 400 of the trimming machine 300 in sequence and transfers them to the supporting device of the lifting and lowering device 4 The meal boxes 400 of the trimming machine 300 are transferred to the supporting frame 4a by the unloading robot 5 under the cooperation of the lifting and lowering driver 4b, so as to achieve the purpose of batch storage of the meal boxes 400 on the supporting frame 4a; and when the lifting and lowering driver 4b drives the supporting frame 4a to descend to the bottom of the meal box conveyor line 2 after batch storage, the meal boxes 400 on the supporting frame 4a are transferred to the meal box conveyor line 2, and the meal box conveyor line 2 conveys the meal boxes 400 to the next workstation; therefore, the meal box offline trimming machine 1000 of the present invention can achieve the purpose of automatically loading the meal blanks 200, automatically trimming the meal blanks 200 to form the meal boxes 400 and automatically unloading the meal boxes 400.

[0041] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An off-line edge trimming machine for lunch boxes, comprising an edge trimming machine and an automatic feeding mechanism for meal blanks and an automatic unloading mechanism for lunch boxes located beside the edge trimming machine, characterized in that: The automatic feeding mechanism for meal blanks comprises a stacking bin for stacking meal blanks in a height direction and a feeding robot for taking out the meal blanks in the stacking bin and transferring them to the trimming machine, the trimming machine performs trimming processing on the meal blanks transferred by the feeding robot so that the meal blanks are processed into meal boxes, the automatic unloading mechanism for meal boxes comprises a meal box conveyor line, an unloading robot and a lifting and lowering device, the lifting and lowering device comprises a supporting frame located above the corresponding meal box conveyor line and staggered with each other, and a lifting and lowering driver for driving the supporting frame to perform lifting and lowering movements in a height direction, the unloading robot takes out the meal box at the trimming machine and transfers it to the supporting frame, the supporting frame places the meal box on the meal box conveyor line under the action of the lifting and lowering driver, and the meal box conveyor line conveys the meal box to the next workstation; Wherein, the automatic feeding mechanism for meal blanks further comprises a first feeding frame and a second feeding frame; The automatic meal blank feeding mechanism further comprises a flexible brush, and the stacking bin comprises a bin frame and a stacking cavity surrounded by the bin frame and with the cavity opening facing upwards; The loading robot includes a loading slide, a loading translation arm, a first lifting drive, a first suction nozzle, a second suction nozzle, a second lifting drive for driving the second suction nozzle to lift and lower, and a translation motor installed on the second loading frame. The loading slide is slidably arranged at the top of the second loading frame along the width direction of the first loading frame. The loading translation arm is located directly below the loading slide. The first lifting drive is assembled on the loading slide and drives the loading translation arm to move closer to or away from the stacking bin. The first suction nozzle is assembled on the loading translation arm and protrudes downward from the loading translation arm. The first suction nozzle is pressed against the first side edge of the top surface of the topmost meal blank in the stacking cavity during the process of the loading translation arm approaching the stacking bin. The second lifting drive The device is mounted on the loading translation arm, and the second lifting drive is also arranged side by side with the side wall of the loading translation arm. The second suction nozzle and the first suction nozzle are spaced apart from each other, and the first suction nozzle is lower than the second suction nozzle. The second suction nozzle is mounted on the output end of the second lifting drive, and the second suction nozzle is also arranged downward. Under the action of the second lifting drive, the second suction nozzle sucks the second side edge of the top surface of the topmost meal blank and pulls the second side edge upward. In the process of the second suction nozzle pulling up the second side edge of the top surface of the topmost meal blank, the brush passes over the second side edge of the top surface of the meal blank and scrapes the adjacent meal blank below, so that the topmost meal blank and the adjacent meal blank below are separated from each other, and the translation motor drives the loading slide to reciprocate on the second loading frame.

2. The lunch box offline trimming machine according to claim 1, characterized in that: The automatic feeding mechanism for meal blanks also includes a lifting device, the stacking bin is slidably arranged on the first feeding frame along the length direction of the first feeding frame, the lifting device includes a lifting member and a lifting driver, the lifting member is slidably arranged on the first feeding frame along the height direction of the first feeding frame, the lifting member is also located at the corresponding lower part of the stacking bin and is opposite to the meal blanks in the stacking bin, the lifting driver is installed on the first feeding frame and drives the lifting member to lift the meal blanks in the stacking bin upwards, the second feeding frame is spanned above the first feeding frame along the width direction of the first feeding frame, so that the second feeding frame surrounds the first feeding frame from its top and both sides, the second feeding frame is also arranged side by side with the trimming machine, the feeding robot is installed on the second feeding frame and is located at the corresponding upper part of the stacking bin, and the feeding robot is responsible for taking away the meal blanks lifted by the lifting device in the stacking bin and transferring them to the trimming machine.

3. The lunch box off-line trimming machine according to claim 2, characterized in that: The automatic unloading mechanism for lunch boxes also includes a first unloading frame and a second unloading frame. The first unloading frame, the trimmer and the second loading frame are arranged side by side in sequence along the width direction of the first loading frame. The lunch box conveyor line is installed on the first unloading frame and conveys the lunch boxes along the width direction of the first loading frame. The second unloading frame spans above the first unloading frame along the length direction of the first loading frame so that the second unloading frame surrounds the first unloading frame from its top and both sides. The supporting frame is slidably arranged on the first unloading frame along the height direction of the first loading frame. The lifting and lowering drive is installed on the first unloading frame. The unloading manipulator is installed on the second unloading frame and is located above the corresponding supporting frame.

4. The lunch box off-line trimming machine according to claim 3, characterized in that: The lunch box conveyor line includes a main roller, a slave roller, at least two belts sleeved on the main roller and the slave roller, and a driving motor to drive the main roller to rotate, the main roller is spaced apart from the slave roller along the width direction of the first feeding frame so that the belt is arranged along the width direction of the first feeding frame, and all the belts are also spaced apart from each other along the length direction of the first feeding frame, the supporting frame includes a supporting slide and the same number of supporting arms as the belts, each of the supporting arms is located above a corresponding one of the belts, and each of the supporting arms is staggered with a corresponding one of the belts, the supporting slide is slidably disposed on the first unloading frame and fixedly connected to the supporting arm, a plurality of guide partitions are installed on the first unloading frame, all of the guide partitions are spaced apart from each other along the length direction of the first feeding frame, a guide channel is enclosed between two adjacent guide partitions, and each of the guide channels has one of the belts built in.

5. The lunch box off-line trimming machine according to claim 3, characterized in that: The unloading robot includes a unloading slide, an unloading translation arm, an unloading lifting drive, a vacuum suction head and a translation drive. The unloading slide is slidably arranged at the top of the second unloading frame along the width direction of the first loading frame. The unloading translation arm is located directly below the unloading slide. The unloading lifting drive is mounted on the unloading slide and drives the unloading translation arm to move closer to or away from the supporting frame. The vacuum suction head is mounted on the unloading translation arm and protrudes downward from the unloading translation arm. The translation drive drives the unloading slide to reciprocate on the second unloading frame.

6. The lunch box off-line trimming machine according to claim 5, characterized in that: It also includes a waste conveying line for conveying waste along the length direction of the first loading frame, the waste conveying line is located between the lifting and lowering device and the trimmer along the width direction of the first loading frame, the vacuum suction head includes a waste suction head and a lunch box suction head spaced apart from each other, the waste suction head and the lunch box suction head are each assembled on the unloading translation arm, and the waste suction head takes out the waste from the trimmer and transfers it to the waste conveying line under the coordinated action of the translation drive and the unloading lifting drive.

7. The lunch box off-line trimming machine according to claim 2, characterized in that: The silo frame is slidably mounted on the first loading frame, the brush is mounted on the silo frame and protrudes from the cavity opening of the stacking cavity, and the brush is also aligned with the edge of the meal base in the stacking cavity in the height direction.

8. The lunch box off-line trimming machine according to claim 7, characterized in that: The silo frame includes a bottom slide and columns installed on the bottom slide, the columns are arranged in a matrix on the bottom slide, the columns and the bottom slide together enclose at least two rows of stacking cavities, and the columns located between two adjacent rows of stacking cavities are installed with the brushes.

9. The lunch box off-line trimming machine according to claim 1, characterized in that: The automatic meal base feeding mechanism further comprises an air blowing nozzle, which is mounted on the feeding translation arm and arranged downwards, and is also located beside the second suction nozzle.

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