Production line for automatic stacking of tableware with external napkins

Abstract

This invention relates to an automatic production line for folding outer napkins for tableware, including a production table. The surface of the production table is equipped with a rotating platform and several paper placement mechanisms. The paper placement mechanisms are capable of vertical movement. One side of the paper placement mechanism is equipped with a folding mechanism. The surface of the rotating platform is equipped with several paper clamping mechanisms. The driving end of the paper clamping mechanism is connected to several paper clamping plates, and the driving end of the folding mechanism is connected to a first folding push plate. The paper clamping plates can clamp the paper, and the first folding push plate can push the paper to fold along a specified direction. This invention utilizes the rotating platform to differentiate different folding steps. The several paper clamping plates connected to the driving end of the paper clamping mechanism mimic human fingers pressing or clamping. The first folding push plate at the driving end of the folding mechanism extends and retracts to complete the folding. Different workstations can achieve folding in different directions through the cooperation of the paper clamping plates and the first folding push plate. The entire folding process does not require manual intervention, thus improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of tableware packaging production technology, specifically to a production line for automatically stacking outer napkins for tableware. Background Technology

[0002] Tableware refers to non-edible utensils that come into direct contact with food during meals. These can include knives, forks, spoons, etc. They are mainly used to assist in the distribution or consumption of food. Currently, Western restaurants and hotels require that tableware be provided to guests after being wrapped and folded in paper napkins. Therefore, during production, it is necessary to consider using automated equipment to fold paper napkins and place tableware such as knives, forks, spoons, etc. inside.

[0003] The authorization announcement number CN205327588U discloses a tableware and paper towel packaging machine. According to its instruction manual and attached drawings, the solution is to use the tooth spacing of the folding plate to gradually reduce the distance between the teeth, so that the paper towel is gradually folded horizontally from a flat state. After being compressed by the clamping wheel part from the folding part, the paper towel has completed the horizontal fold. However, this method can only complete the simple folding of the paper towel and cannot fold it into a shape to wrap the tableware, which brings inconvenience to the production process. Summary of the Invention

[0004] This invention primarily addresses the problems existing in the production of folded and packaged paper towels. It provides an automated production line for folding and packaging tableware outer napkins. A rotary platform is used to differentiate different folding steps. Several paper clamps connected to the drive end of the paper clamping mechanism mimic human fingers pressing or gripping. The first folding pusher at the drive end of the folding mechanism extends and retracts to complete the folding. Different workstations can achieve folding in different directions through the cooperation of the paper clamps and the first folding pusher. A second motor drives a lead screw to move downwards along the guide rail. A first pneumatic gripper clamps the handle area of ​​the tableware, and a second... The pneumatic gripper holds the head area of ​​the cutlery. The second electric slide rail drives the lead screw lifting guide rail to move towards the material placement block. The telescopic shaft of the tenth lifting cylinder drives the gripping turntable to rotate and adjust the angle. The cutlery held by the first and second pneumatic grippers will tilt. Driven by the second electric slide rail, the cutlery will slowly enter the folded paper napkin. During the entry process, the gripping turntable will also slowly rotate and adjust the angle until the knife, fork, and spoon are completely placed inside the folded paper napkin. The entire material placement process realizes the operation of grabbing the knife, fork, and spoon and placing them inside the paper napkin.

[0005] The objective of this invention is achieved through the following technical solution: an automatic production line for stacking outer napkins for tableware, comprising a production table, the surface of which is provided with a rotating platform and several paper placement mechanisms, the paper placement mechanisms being capable of vertical movement, a folding mechanism being provided on one side of the paper placement mechanisms, several paper clamping mechanisms being provided on the surface of the rotating platform, several paper clamping plates being connected to the driving end of the paper clamping mechanisms, a first folding push plate being connected to the driving end of the folding mechanisms, the paper clamping plates being capable of clamping paper, and the first folding push plate being capable of pushing the paper to fold along a specified direction.

[0006] Preferably, the surface of the production table is further provided with several crease mechanisms, a first conveying mechanism, a second conveying mechanism, a tableware feeding mechanism, and a paper wrapping mechanism. The paper wrapping mechanism is used to fold the corners of the paper after it has been folded by the folding mechanism. The crease mechanism can leave creases on the paper. The first conveying mechanism transports the folded paper to the second conveying mechanism. The tableware feeding mechanism puts the tableware it has grabbed into the paper on the second conveying mechanism.

[0007] Preferably, the paper clamping mechanism includes a clamping support plate, clamping support columns, a first slide rail, a first slider, a first drive plate, a first drive shaft, a first guide rod, and a first lifting cylinder. The clamping support plate is disposed on the surface of the rotary platform. The surface of the clamping support plate is provided with a plurality of clamping support columns. The surface of each clamping support column is provided with a first slide rail. The surface of each first slide rail is provided with a plurality of first sliders. The side wall of each first slider is hinged to a first drive plate. The bottom of each first slider is connected to a first lifting cylinder through a first guide rod. The first lifting cylinder is disposed on the bottom surface of the production table. The end of each first drive plate is connected to a first drive shaft. At least one paper clamping plate is provided with a paper support block on its surface. The paper support block ensures that the paper is not flattened when folded. Each paper clamping plate is respectively connected to the surface of the first drive shaft.

[0008] Preferably, the paper placement mechanism includes a placement support plate, a placement support column, a second guide rod, and a second lifting cylinder. The placement support plate has a placement support column at its bottom, and a plurality of second guide rods are connected to the bottom of the placement support column. The second lifting cylinder is disposed on the bottom surface of the production table, and the drive shaft of the second lifting cylinder is connected to the placement support column.

[0009] Preferably, the folding mechanism includes a folding support column, a third lifting cylinder, a folding support plate, and a first horizontal cylinder. The folding support column is disposed on one side of the support column. The top of the folding support column is provided with a third lifting cylinder. The top of the third lifting cylinder is provided with a folding support plate. The surface of the folding support plate is provided with a first horizontal cylinder. The end of the first horizontal cylinder is connected to a first folding push plate. The cross-section of the first folding push plate is L-shaped.

[0010] Preferably, each of the creasing mechanisms includes a creasing support column, a creasing support plate, a fourth lifting cylinder, and a creasing plate. The creasing support column is disposed on one side of the folding support column, and the surface of the creasing support column is provided with a creasing support plate. The surface of the creasing support plate is provided with a fourth lifting cylinder, and the end of the fourth lifting cylinder is provided with a creasing plate. At least one of the creasing support plates is provided with a fifth lifting cylinder, and the end of the fifth lifting cylinder is provided with a paper pressing block. The creasing plate can create creasing on the paper, and the paper pressing block can press the paper firmly.

[0011] Preferably, the paper wrapping mechanism includes a paper wrapping support column, a paper wrapping support plate, a sixth lifting cylinder, a paper wrapping support frame, a second horizontal cylinder, and a second folding push plate. The paper wrapping support column is located on the side close to the first conveying mechanism. The paper wrapping support plate is provided on the surface of the paper wrapping support column. The sixth lifting cylinder is provided on the surface of the paper wrapping support plate. The paper wrapping support frame is provided at the end of the sixth lifting cylinder. The second horizontal cylinder is provided inside the paper wrapping support frame. The second folding push plate is provided at the end of the second horizontal cylinder.

[0012] Preferably, the first conveying mechanism includes a first conveying support column, a first electric slide rail, a seventh lifting cylinder, a first gripping support plate, a first rotating cylinder, a first clamping plate, an eighth lifting cylinder, and a second clamping plate. The first conveying support column is located on the side close to the second conveying mechanism. The top of the first conveying support column is provided with a first electric slide rail. The surface of the first electric slide rail is provided with a seventh lifting cylinder. The end of the seventh lifting cylinder is provided with a first gripping support plate. The end of the first gripping support plate is provided with a first rotating cylinder. The end of the first rotating cylinder is provided with a first clamping plate. The end shape of the first clamping plate is adapted to the shape of folded paper. The surface of the first clamping plate is provided with an eighth lifting cylinder. The end of the drive shaft of the eighth lifting cylinder is provided with a second clamping plate. The end shape of the second clamping plate is adapted to the shape of folded paper.

[0013] Preferably, the second conveying mechanism includes a second conveying support column, a conveyor belt, a first motor, material placement blocks, a discharge support plate, a discharge support column, a ninth lifting cylinder, and a discharge pressure plate. The top of the second conveying support column is equipped with a conveyor belt, which is drivenly connected to the first motor. The surface of the conveyor belt is provided with several material placement blocks, the internal shape of which is adapted to the shape of folded paper. A discharge support plate is provided on one side of the second conveying support column, and a discharge support column is provided on the surface of the discharge support plate. A ninth lifting cylinder is provided at the top of the discharge support column, and a discharge pressure plate is provided at the end of the ninth lifting cylinder.

[0014] Preferably, the tableware feeding mechanism includes a third conveying support column, a second electric slide rail, a screw lifting guide rail, a second motor drive, a gripping support plate, a gripping turntable, an eleventh lifting cylinder, a gripper support column, a first pneumatic gripper, a third horizontal cylinder, a gripper support plate, and a second pneumatic gripper. The third conveying support column is located on one side of the conveyor belt. The surface of the third conveying support column is provided with the second electric slide rail, and the surface of the second electric slide rail is provided with the screw lifting guide rail. The screw lifting guide rail is driven by the second motor, and the surface of the screw lifting guide rail is fixedly provided with the gripping support plate. The surface of the gripping support plate is provided with a gripping turntable. One end of the gripping turntable is hinged to one end of the tenth lifting cylinder, and the other end of the tenth lifting cylinder is hinged to the gripping support plate. The surface of the gripping turntable is provided with an eleventh lifting cylinder and a gripper support column. The end of the eleventh lifting cylinder is provided with a first pneumatic gripper, the end of the gripper support column is provided with a third horizontal cylinder, the end of the third horizontal cylinder is provided with a gripper support plate, and the end of the gripper support plate is provided with a second pneumatic gripper. The first pneumatic gripper grips the handle area of ​​the cutlery, and the second pneumatic gripper grips the head area of ​​the cutlery.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. It utilizes a rotary platform to differentiate different folding steps. Several paper clamps connected to the drive end of the paper clamping mechanism mimic human fingers pressing or holding. The first folding push plate at the drive end of the folding mechanism extends and retracts to complete the folding. Different workstations can achieve folding in different directions through the cooperation of the paper clamps and the first folding push plate. The entire folding process does not require manual intervention, ensuring the folding effect while achieving production automation, greatly improving production efficiency and reducing the production cost of enterprises; 2. The present invention automatically places knives, forks, and spoons inside the folded tissue paper. It utilizes a second motor to drive the lead screw lifting guide rail to move downwards, and the first pneumatic gripper... The first pneumatic gripper clamps the handle area of ​​the cutlery, while the second pneumatic gripper clamps the head area. The second electric slide rail drives the lead screw lifting guide rail to move towards the material placement block. The extension shaft of the tenth lifting cylinder drives the material gripping turntable to rotate and adjust its angle. The cutlery held by the first and second pneumatic grippers tilts, and under the drive of the second electric slide rail, the cutlery is slowly inserted into the folded paper towel. During the insertion process, the material gripping turntable also slowly rotates and adjusts its angle until the cutlery is completely placed inside the folded paper towel. The entire material placement process realizes the operation of grabbing cutlery and placing it inside the paper towel, which improves the degree of automation, increases production efficiency, reduces manual intervention, and lowers the company's production costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a partially enlarged view of the present invention;

[0018] Figure 3 This is a partial perspective view of the present invention;

[0019] Figure 4 This is a partial perspective view of the present invention;

[0020] Figure 5 This is a partial perspective view of the present invention;

[0021] Figure 6 This is a partial perspective view of the present invention;

[0022] Figure 7 This is a partial perspective view of the present invention.

[0023] The diagram shows the following markings: 1. Production table; 11. Rotary platform; 2. Paper placement mechanism; 21. Placement support plate; 22. Placement support column; 23. Second guide rod; 24. Second lifting cylinder; 3. Folding mechanism; 30. First folding push plate; 31. Folding support column; 32. Third lifting cylinder; 33. Folding support plate; 34. First horizontal cylinder; 4. Paper clamping mechanism; 40. Paper clamping plate; 41. Clamping support plate; 42. Clamping support column; 43. First slide rail. 44. First slider; 45. First drive plate; 46. First drive shaft; 47. Paper support block; 48. First guide rod; 49. First lifting cylinder; 5. Creasing mechanism; 51. Creasing support column; 52. Creasing support plate; 53. Fourth lifting cylinder; 54. Creasing plate; 55. Fifth lifting cylinder; 56. Paper pressing block; 6. First conveying mechanism; 61. First conveying support column; 62. First electric slide rail; 63. Seventh lifting cylinder; 64. First gripper Support plate; 65. First rotary cylinder; 66. First clamping plate; 67. Eighth lifting cylinder; 68. Second clamping plate; 7. Second conveying mechanism; 71. Second conveying support column; 72. Conveyor belt; 73. First motor; 74. Material placement block; 75. Discharge support plate; 76. Discharge support column; 77. Ninth lifting cylinder; 78. Discharge pressure plate; 8. Tableware discharging mechanism; 81. Third conveying support column; 82. Second electric slide rail; 83. Screw lifting guide rail; 8 4. Second motor; 85. Material gripping support plate; 86. Material gripping turntable; 87. Tenth lifting cylinder; 88. Eleventh lifting cylinder; 89. Gripper support column; 881. First pneumatic gripper; 891. Third horizontal cylinder; 892. Gripper support plate; 893. Second pneumatic gripper; 9. Paper wrapping mechanism; 91. Paper wrapping support column; 92. Paper wrapping support plate; 93. Sixth lifting cylinder; 94. Paper wrapping support frame; 95. Second horizontal cylinder; 96. Second folding push plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings:

[0025] like Figures 1 to 7As shown, an automatic production line for stacking outer napkins for tableware includes a production table 1. The surface of the production table 1 is provided with a rotating platform 11 and four paper placement mechanisms 2. The rotating platform 11 is rotatable relative to the production table 1. Each paper placement mechanism 2 includes a placement support plate 21, a placement support column 22, second guide rods 23, and a second lifting cylinder 24. The bottom of the placement support plate 21 is fixedly connected to the placement support column 22, and the bottom of the placement support column 22 is fixedly connected to four second guide rods 23. The second lifting cylinder 24 is disposed on the bottom surface of the production table 1, and its drive shaft is connected to the placement support column 22. The surface of the rotating platform 11 is also provided with five sets of paper clamping mechanisms 4. The drive end of the mechanism 4 is connected to two paper clamping plates 40, which can clamp paper. Specifically, each paper clamping mechanism 4 includes a clamping support plate 41, a clamping support column 42, a first slide rail 43, a first slider 44, a first drive plate 45, a first drive shaft 46, a first guide rod 48, and a first lifting cylinder 49. The clamping support plate 41 is disposed on the surface of the rotary platform 11. Two clamping support columns 42 are fixedly installed on the surface of the clamping support plate 41. The surface of each clamping support column 42 is provided with a first slide rail 43. A first slider 44 is slidably installed on the surface of each first slide rail 43. The side wall of each first slider 44 is hinged to the bottom of the first drive plate 45. The bottom of each first slider 44 is connected to the first drive plate 45. The first guide rod 48 is connected to the first lifting cylinder 49, which is located on the bottom surface of the production table 1. A first drive shaft 46 is fixedly connected to the top of each first drive plate 45. The first drive shaft 46 is rotatably mounted inside the upright plates on both sides. A paper support block 47 is provided on the surface of the lower paper clamping plate 40 to prevent the paper from being flattened during folding. The upper and lower paper clamping plates 40 are respectively fixedly connected to the surfaces of the first drive shafts 46. With this configuration, folded paper can be placed on the surface of the support plate 21 during production. After placement, the first lifting cylinder 49 will drive the first slider 44 on the left side to slide, and the first slider 44 will drive the first drive plate 45 on the left side to rotate. During the process, the first drive shaft 46 located at the bottom rotates simultaneously, causing the paper clamping plate 40 located at the bottom to press down on the paper on the surface of the support plate 21. After pressing, the folding process can begin. After folding, the telescopic shaft of the second lifting cylinder 24 drives the support column 22 and the support plate 21 to move downwards. During the movement, the second guide rod 23 provides support and guidance. Then, the first lifting cylinder 49 drives the first slider 44 located on the right to slide. The first slider 44 drives the first drive plate 45 located on the right to rotate. During the rotation, the first drive shaft 46 located at the top rotates simultaneously, causing the paper clamping plate 40 located at the top to clamp the paper that has been folded once on the surface of the support plate 21.Once clamped, the rotating platform 11 can begin to rotate, causing the clamped movement to proceed to the next process.

[0026] In this embodiment, a folding mechanism 3 is provided on one side of the paper placement mechanism 2. The driving end of the folding mechanism 3 is connected to a first folding push plate 30. The first folding push plate 30 can push the paper to fold along a specified direction. Specifically, the folding mechanism 3 includes a folding support column 31, a third lifting cylinder 32, a folding support plate 33, and a first horizontal cylinder 34. The folding support column 31 is located on the left side of the placement support column 22. The third lifting cylinder 32 is fixedly installed on the top of the folding support column 31. The folding support plate 33 is fixedly installed on the top of the telescopic shaft of the third lifting cylinder 32. The first horizontal cylinder 34 is fixedly installed on the surface of the folding support plate 33. The end of the first horizontal cylinder 34 is connected to the first folding push plate 30. The cross-section of the first folding push plate 30 is L-shaped. It should be noted that when the placement support plate 21 places the paper, the first horizontal cylinder 30... The surface of the first folding pusher plate 30 is parallel to the surface of the support plate 21. With this setting, whenever the lower paper clamp plate 40 presses down on the paper on the surface of the support plate 21, the telescopic shaft of the third lifting cylinder 32 will drive the folding support plate 33 to move upward. This will cause the first horizontal cylinder 34 and the first folding pusher plate 30 to move upward as well. After the movement, the first folding pusher plate 30 is no longer parallel to the surface of the support plate 21. At this time, the left side of the paper will tilt upward. Then, the telescopic shaft of the first horizontal cylinder 34 will extend and drive the first folding pusher plate 30 to move to the right. In this way, the first folding pusher plate 30 will complete the folding of the paper. It should be noted that since the surface of the lower paper clamp plate 40 is equipped with a paper support block 47, the paper support block 47 also plays a guiding and supporting role during the folding process, and ensures that the paper is not completely flattened after folding.

[0027] In this embodiment, since the subsequent folding process requires folding other areas of the paper, in order to enhance the folding effect, a creasing mechanism 5 is installed on the surface of the production table 1 during the second and third folds. The creasing mechanism 5 can leave creasing marks on the paper. Specifically, each creasing mechanism 5 includes a creasing support column 51, a creasing support plate 52, a fourth lifting cylinder 53, and a creasing plate 54. The creasing support column 51 is located on one side of the folding support column 31. The surface of the creasing support column 51 is provided with a creasing support plate 52. The surface of the creasing support plate 52 is provided with a fourth lifting cylinder 53. The end of the fourth lifting cylinder 53 is provided with a creasing plate 54. Since the paper clamp 40 located above will interfere with the second folding angle and thus loosen during the second folding, it is necessary to additionally press the paper during the second folding process without affecting the folding. A fifth lifting cylinder 54 is fixedly installed on the surface of the creasing support plate 52 located during the second fold. The fifth lifting cylinder 55 has a paper pressing block 56 installed at its end. With this configuration, the telescopic shaft of the fifth lifting cylinder 55 will drive the paper pressing block 56 to move downward. The paper pressing block 56 can press the paper tightly. After pressing, the fourth lifting cylinder 53 will drive the creasing plate 54 to move downward. After moving to the designated position, the creasing plate 54 can create a creasing on the paper. After the second fold is completed, the upper paper clamping plate 40 clamps the paper that has been folded twice on the surface of the support plate 21. After clamping, the rotating platform 11 can start to rotate to clamp and move it to the next process. When the third folding process is reached, the upper paper clamping plate 40 will not interfere with the third folding angle and will not loosen. Therefore, only the creasing plate 54 of the third folding process needs to create a creasing. Similarly, the third fold is completed under the push of the first folding push plate 30. After that, the upper and lower paper clamping plates 40 clamp the paper that has been folded three times and move it to the final paper wrapping mechanism 9 for the final folding.

[0028] In this embodiment, the surface of the production table 1 is equipped with a first conveying mechanism 6, a second conveying mechanism 7, a tableware feeding mechanism 8, and a paper wrapping mechanism 9. The paper wrapping mechanism 9 primarily folds and trims the excess edges of the folded paper. Specifically, the paper wrapping mechanism 9 includes a paper wrapping support column 91, a paper wrapping support plate 92, a sixth lifting cylinder 93, a paper wrapping support frame 94, a second horizontal cylinder 95, and a second folding push plate 96. The paper wrapping support column 91 is located near the first conveying mechanism 6. The paper wrapping support plate 92 is fixedly mounted on the surface of the paper wrapping support column 91. The sixth lifting cylinder 93 is fixedly mounted on the surface of the paper wrapping support plate 92. The end of the sixth lifting cylinder 93 is provided with a paper wrapping support frame 94. The paper wrapping support frame 94 is internally fixedly equipped with a second horizontal cylinder 95, and a second folding push plate 96 is fixedly installed at the end of the second horizontal cylinder 95. With this configuration, the extension and retraction of the sixth lifting cylinder 93 will adjust the position of the paper wrapping support frame 94. After reaching the appropriate position, the side wall of the paper wrapping support frame 94 will fit against the side walls of the upper and lower paper clamping plates 40. Then, the extension and retraction shaft of the second horizontal cylinder 95 will extend to drive the second folding push plate 96 to fold and flatten the excess corners of the top of the paper that has been folded three times. After completion, the upper and lower paper clamping plates 40 will similarly clamp the paper that has been folded four times and move it to the edge of the first conveying mechanism 6. The first conveying mechanism 6 includes a first conveying support column 61, a first electric slide rail 62, and a seventh lifting cylinder. 63. A first gripping support plate 64, a first rotary cylinder 65, a first clamping plate 66, an eighth lifting cylinder 67, and a second clamping plate 68. The first conveying support column 61 is located near the entrance side of the second conveying mechanism 7. The top of the first conveying support column 61 is provided with a first electric slide rail 62. The surface of the first electric slide rail 62 is provided with a seventh lifting cylinder 63. The end of the seventh lifting cylinder 63 is connected to the first gripping support plate 64. The end of the first gripping support plate 64 is provided with a first rotary cylinder 65. The end of the first rotary cylinder 65 is provided with a first clamping plate 66. The end shape of the first clamping plate 66 is adapted to the shape of folded paper. The surface of the first clamping plate 66 is provided with an eighth lifting cylinder 67. The drive shaft of the lifting cylinder 67 is equipped with a second clamping plate 68. The end shape of the second clamping plate 68 is adapted to the shape of the folded paper. With this configuration, the first electric slide rail 62 first moves the seventh lifting cylinder 63 to the position above the paper clamping plate 40 that holds the folded paper. The telescopic shaft of the seventh lifting cylinder 63 will drive the first gripping support plate 64 to move downward. After moving to the designated position, the telescopic shaft of the eighth lifting cylinder 67 will drive the second clamping plate 68 to move downward. In this way, the corners of the second clamping plate 68 and the corners of the first clamping plate 66 will clamp the folded paper. At this time, the first rotary cylinder 65 rotates to adjust the angle. Then, the first electric slide rail 62 moves back to the entrance side of the second conveying mechanism 7. Similarly, the telescopic shaft of the eighth lifting cylinder 67 retracts.The second clamping plate 68 and the first clamping plate 66 will release the paper, which will fall onto the second conveying mechanism 7. The second conveying mechanism 7 includes a second conveying support column 71, a conveyor belt 72, a first motor 73, material placement blocks 74, a feeding support plate 75, a feeding support column 76, a ninth lifting cylinder 77, and a feeding pressure plate 78. The top of the second conveying support column 71 is equipped with a conveyor belt 72, which is drivenly connected to the first motor 73. The surface of the conveyor belt 72 is equipped with several material placement blocks 74, the internal shape of which is adapted to the shape of the folded paper. In order to facilitate the tableware feeding mechanism 8 to place the gripped tableware into the paper on the second conveying mechanism 7, a feeding support is provided on one side of the second conveying support column 71. The support plate 75 has a feeding support column 76 on its surface. A ninth lifting cylinder 77 is located at the top of the feeding support column 76, and a feeding pressure plate 78 is located at the end of the ninth lifting cylinder 77. The tableware feeding mechanism 8 includes a third conveying support column 81, a second electric slide rail 82, a screw lifting guide rail 83, a second motor 84, a gripping support plate 85, a gripping turntable 86, an eleventh lifting cylinder 88, a gripper support column 89, a first pneumatic gripper 881, a third horizontal cylinder 891, a gripper support plate 892, and a second pneumatic gripper 893. The third conveying support column 81 is located on one side of the conveyor belt 72, and a second electric slide rail 82 is fixedly installed on its surface. The surface of rail 82 is provided with a lead screw lifting guide rail 83, which is driven by a second motor 84. A material gripping support plate 85 is fixedly mounted on the surface of the lead screw lifting guide rail 83. A material gripping turntable 86 is mounted on the surface of the material gripping support plate 85. One end of the material gripping turntable 86 is hinged to one end of a tenth lifting cylinder 87, and the other end of the tenth lifting cylinder 87 is hinged to the material gripping support plate 85. The surface of the material gripping turntable 86 is provided with an eleventh lifting cylinder 88 and a gripper support column 89. The end of the eleventh lifting cylinder 88 is provided with a first pneumatic gripper 881, and the end of the gripper support column 89 is provided with a third horizontal cylinder 891. The end of the third horizontal cylinder 891 is provided with a gripper support plate 892. The end of the claw support plate 892 is equipped with a second pneumatic gripper 893. The first pneumatic gripper 881 grips the handle area of ​​the cutlery, and the second pneumatic gripper 893 grips the head area of ​​the cutlery. With this configuration, whenever cutlery such as knives, forks, and spoons needs to be gripped, the second motor 8 drives the lead screw lifting guide rail 83 to move downward. When it reaches the designated position, the eleventh lifting cylinder 88 drives the first pneumatic gripper 881 to move downward, gripping the handle area of ​​the cutlery. At the same time, the telescopic shaft of the third horizontal cylinder 891 retracts, causing the claw support plate 892 to move towards the cutlery. After moving to the designated position, the second pneumatic gripper 893 grips the head area of ​​the cutlery. Then, the second motor 8 drives the lead screw lifting guide rail 83 to move upward.The second electric slide rail 82 drives the lead screw lifting guide rail 83 to move towards the material placement block 74. After moving to the designated position, the telescopic shaft of the ninth lifting cylinder 77 drives the material dispensing plate 78 to move downward. At this time, the material dispensing plate 78 presses down the folded paper towel. Then, the telescopic shaft of the tenth lifting cylinder 87 extends, and the gripping turntable 86 rotates to adjust its angle. At this time, the tableware held by the first pneumatic gripper 881 and the second pneumatic gripper 893 will tilt. Then, driven by the second electric slide rail 82, the tableware held by the gripper will slowly enter the folded paper towel. During the entry process, the gripping turntable 86 will also slowly rotate to adjust its angle until the knife, fork, and spoon are completely placed inside the folded paper towel. After placement, the entire tableware dispensing mechanism 8 will return to its initial position.

[0029] Working principle of this invention:

[0030] First, place the folded paper on the surface of the support plate 21 and the folding support plate 33. After placement, the first lifting cylinder 49 will drive the first slider 44 on the left to slide, and the first slider 44 will drive the first drive plate 45 on the left to rotate. During the rotation, the first drive shaft 46 below will rotate simultaneously. In this way, the first drive shaft 46 will drive the paper clamp 40 below to press the paper on the surface of the support plate 21. After pressing, the folding process can begin. That is, the telescopic shaft of the third lifting cylinder 32 will drive the folding support plate 33 to move upward. In this way, the first horizontal cylinder 34 and the first folding push plate 30 will also move upward. After the movement, the first folding push plate 30 is no longer parallel to the surface of the support plate 21. At this time, the paper... The left side will tilt upwards, and then the telescopic shaft of the first horizontal cylinder 34 will extend, driving the first folding push plate 30 to move to the right. In this way, the first folding push plate 30 will complete the folding of the paper. After folding, the telescopic shaft of the second lifting cylinder 24 will drive the placement support column 22 and placement support plate 21 to move downwards. During the movement, the second guide rod 23 plays a supporting and guiding role. Then, the first lifting cylinder 4 will drive the first slider 44 located on the right side to slide. The first slider 44 drives the first drive plate 45 located on the right side to rotate. During the rotation, the first drive shaft 46 located above will rotate at the same time. In this way, the first drive shaft 46 will drive the paper clamping plate 40 located above to clamp the paper that has been folded once on the surface of the placement support plate 21. After clamping, it will rotate back flat. Platform 11 can then begin to rotate, clamping the paper to the second folding process. Unlike the first fold, the upper paper clamp 40 interferes with the second folding angle, so it will rotate upwards to loosen. Then, the telescopic shaft of the fifth lifting cylinder 55 drives the paper pressing block 56 downwards. The paper pressing block 56 can press the paper tightly. After pressing, the fourth lifting cylinder 53 will drive the creasing plate 54 downwards. After moving to the designated position, the creasing plate 54 can create a creasing on the paper. Similarly, the first folding push plate 30 extends to complete the second fold. After folding, the upper paper clamp 40 moves downwards to clamp the paper that has been folded twice on the surface of the support plate 21. After clamping, the rotating platform 11 can begin to rotate, clamping the paper to the next process. During the third folding process, the upper paper clamp 40 will not interfere with the third folding angle, so it will not loosen. At this point, only the crease plate 54 of the third folding process needs to create a crease. Similarly, the third fold is completed under the push of the first folding push plate 30. Then, the upper and lower paper clamps 40 clamp the paper that has been folded three times and move it to the wrapping mechanism 9 for the final fold. Next, the extension and retraction of the sixth lifting cylinder 93 will raise and lower the position of the wrapping support frame 94. After reaching the appropriate position, the side wall of the wrapping support frame 94 will fit against the side walls of the upper and lower paper clamps 40. Then, the extension and retraction shaft of the second horizontal cylinder 95 will extend and drive the second folding push plate 96 to fold and flatten the excess corners of the top of the paper that has been folded three times. After completion,Similarly, the upper and lower paper clamps 40, holding the paper folded four times, move to the edge of the first conveying mechanism 6. Then, the first electric slide rail 62 moves the seventh lifting cylinder 63 above the paper clamps 40 holding the folded paper. The telescopic shaft of the seventh lifting cylinder 63 drives the first gripping support plate 64 to move downwards. After moving to the designated position, the telescopic shaft of the eighth lifting cylinder 67 drives the second clamp 68 to move downwards. In this way, the corners of the second clamp 68 and the corners of the first clamp 66 will clamp the folded paper. It should be noted that the corners of the second clamp 68 and the first clamp 66... The corner travel will not flatten the paper. At this time, the first rotary cylinder 65 rotates to adjust the angle, and then the first electric slide rail 62 moves back to the entrance side of the second conveying mechanism 7. Similarly, the telescopic shaft of the eighth lifting cylinder 67 retracts, and the second clamping plate 68 and the first clamping plate 66 will release the paper. The paper falls into the material placement block 74 on the second conveying mechanism 7, and then continues to be conveyed to the right under the drive of the conveyor belt 72. Next, it is necessary to clamp cutlery such as knives, forks, and spoons and perform the material feeding operation. The second motor 8 will drive the lead screw lifting guide rail 83 to move downward. When it moves to the designated position, the eleventh lifting cylinder... Cylinder 88 drives the first pneumatic gripper 881 downward, gripping the handle area of ​​the tableware. Simultaneously, the telescopic shaft of the third horizontal cylinder 891 retracts, causing the gripper support plate 892 to move towards the tableware. After reaching the designated position, the second pneumatic gripper 893 grips the head area of ​​the tableware. Then, the second motor 8 drives the lead screw lifting guide rail 83 upward, and the second electric slide rail 82 drives the lead screw lifting guide rail 83 towards the material placement block 74. After reaching the designated position, the telescopic shaft of the ninth lifting cylinder 77 drives the material discharging pressure plate 7. 8 moves downwards, at which point the feeding plate 78 presses down on the folded paper towel. Then, the telescopic shaft of the tenth lifting cylinder 87 extends, and the gripping turntable 86 rotates to adjust its angle. At this time, the tableware held by the first pneumatic gripper 881 and the second pneumatic gripper 893 tilts. Then, driven by the second electric slide rail 82, the tableware slowly enters the folded paper towel. During this process, the gripping turntable 86 also slowly rotates to adjust its angle until the cutlery is completely placed inside the folded paper towel. After placement, the entire tableware feeding mechanism 8 returns to its initial position.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A production line for automatically stacking outer napkins for tableware, comprising a production table (1), characterized in that, The production table (1) is provided with a rotating platform (11) and several paper placement mechanisms (2). The paper placement mechanisms (2) can move up and down. A folding mechanism (3) is provided on one side of the paper placement mechanism (2). The rotating platform (11) is provided with several paper clamping mechanisms (4). The driving end of the paper clamping mechanism (4) is connected to several paper clamping plates (40). The driving end of the folding mechanism (3) is connected to a first folding push plate (30). The paper clamping plates (40) can clamp the paper. The first folding push plate (30) can push the paper to fold along a specified direction. The production table (1) is also provided with several creasing mechanisms (5), a first conveying mechanism (6), a second conveying mechanism (7), a tableware feeding mechanism (8), and a paper wrapping mechanism (9). The paper wrapping mechanism (9) is used to fold the corners of the paper after it is folded by the folding mechanism (3). The crease mechanism (5) can leave creases on the paper. The first conveying mechanism (6) conveys the folded paper to the second conveying mechanism (7). The tableware feeding mechanism (8) puts the gripped tableware into the paper on the second conveying mechanism (7). The folding mechanism (3) includes a folding support column (31), a third lifting cylinder (32), a folding support plate (33), and a first horizontal cylinder (34). The folding support column (31) is located on one side of the support column (22). The top of the folding support column (31) is provided with a third lifting cylinder (32). The top of the third lifting cylinder (32) is provided with a folding support plate (33). The surface of the folding support plate (33) is provided with a first horizontal cylinder (34). The end of the first horizontal cylinder (34) is connected to a first folding push plate (30). The cross-section of the first folding push plate (30) is L-shaped.The tableware feeding mechanism (8) includes a third conveying support column (81), a second electric slide rail (82), a screw lifting guide rail (83), a second motor (84), a gripping support plate (85), a gripping turntable (86), an eleventh lifting cylinder (88), a gripper support column (89), a first pneumatic gripper (881), a third horizontal cylinder (891), a gripper support plate (892), and a second pneumatic gripper (893). The third conveying support column (81) is located on one side of the conveyor belt (72). The surface of the third conveying support column (81) is provided with a second electric slide rail (82). The surface of the second electric slide rail (82) is provided with a screw lifting guide rail (83). The screw lifting guide rail (83) is driven by the second motor (84). The surface of the screw lifting guide rail (83) is fixedly provided with a gripping support plate (85). The surface of the gripping support plate (85) is provided with a gripping turntable (86). One end of the gripping turntable (86) is hinged to one end of the tenth lifting cylinder (87), and the other end of the tenth lifting cylinder (87) is hinged to the gripping support plate (85). The surface of the gripping turntable (86) is provided with an eleventh lifting cylinder (88) and a gripper support column (89). The end of the eleventh lifting cylinder (88) is provided with a first pneumatic gripper (881). The end of the gripper support column (89) is provided with a third horizontal cylinder (891). The end of the third horizontal cylinder (891) is provided with a gripper support plate (892). The end of the gripper support plate (892) is provided with a second pneumatic gripper (893). The first pneumatic gripper (881) grips the handle area of ​​the tableware, and the second pneumatic gripper (893) grips the head area of ​​the tableware.

2. The production line for automatically stacking outer napkins for tableware according to claim 1, characterized in that, The paper clamping mechanism (4) includes a clamping support plate (41), clamping support columns (42), a first slide rail (43), a first slider (44), a first drive plate (45), a first drive shaft (46), a first guide rod (48), and a first lifting cylinder (49). The clamping support plate (41) is disposed on the surface of the rotary platform (11). The surface of the clamping support plate (41) is provided with a plurality of clamping support columns (42). The surface of each clamping support column (42) is provided with a first slide rail (43). The surface of each first slide rail (43) is provided with a plurality of first sliders (44). A first drive plate (45) is hinged to the side wall of each first slider (44). The bottom of each first slider (44) is connected to a first lifting cylinder (49) via a first guide rod (48). The first lifting cylinder (49) is set on the bottom surface of the production table (1). A first drive shaft (46) is connected to the end of each first drive plate (45). At least one paper clamp (40) has a paper support block (47) on its surface. The paper support block (47) ensures that the paper is not flattened when folded. Each paper clamp (40) is connected to the surface of the first drive shaft (46).

3. The production line for automatically stacking outer napkins for tableware according to claim 2, characterized in that, The paper placement mechanism (2) includes a placement support plate (21), a placement support column (22), a second guide rod (23), and a second lifting cylinder (24). The placement support plate (21) has a placement support column (22) at its bottom. The bottom of the placement support column (22) is connected to several second guide rods (23). The second lifting cylinder (24) is set on the bottom surface of the production table (1). The drive shaft of the second lifting cylinder (24) is connected to the placement support column (22).

4. The production line for automatically stacking outer napkins for tableware according to claim 3, characterized in that, Each of the creasing mechanisms (5) includes a creasing support column (51), a creasing support plate (52), a fourth lifting cylinder (53), and a creasing plate (54). The creasing support column (51) is disposed on one side of the folding support column (31). The surface of the creasing support column (51) is provided with a creasing support plate (52). The surface of the creasing support plate (52) is provided with a fourth lifting cylinder (53). The end of the fourth lifting cylinder (53) is provided with a creasing plate (54). At least one of the creasing support plates (52) is provided with a fifth lifting cylinder (55). The end of the fifth lifting cylinder (55) is provided with a paper pressing block (56). The creasing plate (54) can creasing the paper, and the paper pressing block (56) can pressing the paper.

5. The production line for automatically stacking outer napkins for tableware according to claim 4, characterized in that, The paper wrapping mechanism (9) includes a paper wrapping support column (91), a paper wrapping support plate (92), a sixth lifting cylinder (93), a paper wrapping support frame (94), a second horizontal cylinder (95), and a second folding push plate (96). The paper wrapping support column (91) is located on one side close to the first conveying mechanism (6). The paper wrapping support column (91) is provided with a paper wrapping support plate (92) on its surface. The paper wrapping support plate (92) is provided with a sixth lifting cylinder (93) on its surface. The end of the sixth lifting cylinder (93) is provided with a paper wrapping support frame (94). The inside of the paper wrapping support frame (94) is provided with a second horizontal cylinder (95). The end of the second horizontal cylinder (95) is provided with a second folding push plate (96).

6. The production line for automatically stacking outer napkins for tableware according to claim 5, characterized in that, The The first conveying mechanism (6) includes a first conveying support column (61), a first electric slide rail (62), a seventh lifting cylinder (63), a first gripping support plate (64), a first rotating cylinder (65), a first clamping plate (66), an eighth lifting cylinder (67), and a second clamping plate (68). The first conveying support column (61) is located on one side near the second conveying mechanism (7). The top of the first conveying support column (61) is provided with the first electric slide rail (62), and the surface of the first electric slide rail (62) is provided with the seventh lifting cylinder (63). The end of the lowering cylinder (63) is provided with a first gripping support plate (64), the end of the first gripping support plate (64) is provided with a first rotating cylinder (65), the end of the first rotating cylinder (65) is provided with a first clamping plate (66), the end shape of the first clamping plate (66) is adapted to the shape of the folded paper, the surface of the first clamping plate (66) is provided with an eighth lifting cylinder (67), the end of the drive shaft of the eighth lifting cylinder (67) is provided with a second clamping plate (68), the end shape of the second clamping plate (68) is adapted to the shape of the folded paper.

7. The production line for automatically stacking outer napkins for tableware according to claim 6, characterized in that, The second conveying mechanism (7) includes a second conveying support column (71), a conveyor belt (72), a first motor (73), a material placement block (74), a discharge support plate (75), a discharge support column (76), a ninth lifting cylinder (77), and a discharge pressure plate (78). The top of the second conveying support column (71) is provided with a conveyor belt (72), which is connected to the first motor (73). The surface of the conveyor belt (72) is provided with a plurality of material placement blocks (74), the internal shape of which is adapted to the shape of folded paper. The side of the second conveying support column (71) is provided with a discharge support plate (75), the surface of which is provided with a discharge support column (76), the top of which is provided with a ninth lifting cylinder (77), and the end of which is provided with a discharge pressure plate (78).

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