An automatic bagging machine
By introducing visual inspection and automated bag loading mechanisms into the bag loading machine, the problem of inaccurate loading and time-consuming and labor-intensive loading of the bag loading machine is solved, and efficient automatic bag loading is achieved.
Patent Information
- Application Number
- CN202211167342.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2042-09-23
AI Technical Summary
The existing threaded conical nail bagging machines are difficult to achieve visual inspection of labels, instructions and screw bags when loading, resulting in inaccurate loading and automatic defect removal. The bagging process is time-consuming and labor-intensive, reducing work efficiency.
An automatic bag loading machine is designed, including a visual inspection mechanism and an automated bag loading mechanism. The label, instruction manual and screw bag are accurately positioned through the visual inspection mechanism, and defects are automatically eliminated during the bag loading process. Combined with five-link label printers, single-link label printers, automatic sealing mechanisms and other components to achieve full automatic bag loading.
It realizes accurate positioning and automatic removal of defects of labels, instructions and screw bags, improves bag loading efficiency, reduces labor intensity and saves costs.
Smart Images

Figure CN115571434B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of threaded cone nail bagging, in particular to an automatic bagging machine. Background Art
[0002] Threaded tapered nails are a type of tapered threaded nails. Threaded tapered nails require a bagging machine when they are packaged. The bagging machine needs to put the five-part label, single-part label, instruction manual and screw bag into the packaging bag together.
[0003] Today's threaded cone nail bagging machines have difficulty in achieving visual inspection of labels, instructions, and screw packs when bagging, making it impossible to accurately place labels, instructions, and screw packs when loading, and are unable to automatically reject alarms. At the same time, existing bagging machines have difficulty achieving fully automatic bagging after unloading, which is time-consuming and labor-intensive, increases costs, and reduces the efficiency of the automatic bagging machine and increases the labor intensity of the automatic bagging machine when transferring bags. Summary of the Invention
[0004] The object of the present invention is to provide an automatic bagging machine to solve the problem in the above background technology that the bagging machine is difficult to accurately place when loading materials, which increases costs and reduces work efficiency.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic bagging machine, comprising an equipment frame and a control keyboard installed on one side of the equipment frame surface, wherein a first turntable tooling and a second turntable tooling are respectively provided on both sides of the equipment frame surface, and the first turntable tooling and the second turntable tooling are both driven to rotate by a stepper motor; a five-link label printer is installed on the surface of the equipment frame and on one side of the second turntable tooling through a support frame, and a five-link label conveying mechanism is provided at the label outlet end of the five-link label printer, and the five-link label conveying mechanism is fixedly connected to the surface of the equipment frame, and at the same time, a label folding mechanism for folding labels is provided on the surface of the five-link label conveying mechanism; a single-link label printer is installed on the side of the equipment frame away from the five-link label printer through a support frame, and a single-link label conveying mechanism is installed at the label outlet end of the single-link label printer, and the single-link label conveying mechanism is fixedly connected to the surface of the equipment frame; a label folding mechanism is provided between the single-link label conveying mechanism and the label folding mechanism. The loading mechanism is used to load the folded labels to the surface of the first turntable tooling; a double-stack feeding mechanism is installed on one side of the first turntable tooling, and a chain conveyor is fixed on the surface of the equipment frame on one side of the double-stack feeding mechanism, and a screw bag feeding mechanism for loading is installed on the surface of the equipment frame on one side of the chain conveyor; an automatic bagging mechanism is provided on the surface of the equipment frame between the first turntable tooling and the second turntable tooling, which automatically loads the materials packaged by the first turntable tooling to the surface of the second turntable tooling; a packaging bag loading mechanism for placing packaging bags is fixed on the surface of the equipment frame and located on one side of the second turntable tooling, an automatic sealing mechanism for sealing is fixed on the surface of the equipment frame between the second turntable tooling and the five-link label printer, and an automatic unloading mechanism and an unloading conveyor line are fixed on one side of the automatic sealing mechanism and located on the surface of the equipment frame, and the automatic unloading mechanism transports the materials packaged by the second turntable tooling to the surface of the unloading conveyor line.
[0006] Preferably, the surface of the first turntable tooling is provided with eight groups of processing stations, and the angle between each group of processing stations is forty-five degrees; the surface of the second turntable tooling is provided with four groups of processing tools, and the angle between each group of processing tools is ninety degrees.
[0007] Preferably, the surfaces of the equipment frames on one side of the five-link label conveying mechanism, the single-link label conveying mechanism, the double-stack feeding mechanism and the screw pack loading mechanism are respectively fixed with a five-link label visual inspection mechanism, a single-link label visual inspection mechanism, a visual inspection mechanism and a screw pack visual inspection mechanism, and the five-link label visual inspection mechanism, the single-link label visual inspection mechanism, the visual inspection mechanism and the screw pack visual inspection mechanism are respectively used for corresponding visual inspections.
[0008] Preferably, the five-link label visual detection mechanism, the single-link label visual detection mechanism, the visual detection mechanism and the screw package visual detection mechanism are all composed of a support rod, a fixing plate and a camera. The support rod is fixed to the surface of the equipment frame by four bolts, and a fixing plate is installed on the top of the support rod, and a camera for detection is fixed at one end of the bottom of the fixing plate.
[0009] Preferably, the label folding mechanism is composed of a folding motor and a folding sheet. There are two groups of folding motors, and both groups of folding motors are fixedly connected to the outer walls on both sides of the five-link label conveying mechanism. The output end of the folding motor is equipped with a folding sheet through a coupling, and the folding sheet extends to the interior of the five-link label conveying mechanism and is used for folding labels.
[0010] Preferably, the interior of the packaging bag feeding mechanism includes an electric slide, a linear module, a feeding cylinder and an adsorption head. The electric slide is fixedly connected to the surface of the equipment frame, and the surface of the electric slide is slidably connected to the linear module.
[0011] Preferably, the top end of the linear module is connected to two groups of feeding cylinders, and the output end of the feeding cylinder is fixed with an adsorption head for adsorbing the packaging bag.
[0012] Preferably, the automatic unloading mechanism is composed of a support rod, a transverse cylinder, a longitudinal cylinder and an adsorption plate. The support rod is fixedly connected to the surface of the equipment frame, and a transverse cylinder is laterally installed on the top end of the support rod.
[0013] Preferably, the surface of the transverse cylinder is slidably connected to the longitudinal cylinder, and an adsorption disk for adsorbing objects is fixed to the output end of the longitudinal cylinder.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the automatic bagging machine can perform visual inspection on the labels, instructions and screw packages through the visual inspection mechanism, so that the materials are accurately placed in the designated position when loading, and can realize automatic rejection alarm; at the same time, the bagging machine realizes fully automatic bagging after discharging the materials, which saves time, labor and cost, and also improves the working efficiency of the automatic bagging machine during use, thereby reducing the labor intensity of the automatic bagging machine when transferring bags. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the three-dimensional main structure of the present invention;
[0016] Figure 2 It is a schematic diagram of the three-dimensional top view structure of the present invention;
[0017] Figure 3 It is a partial top view enlarged structural schematic diagram of the present invention;
[0018] Figure 4 It is a schematic diagram of a partial three-dimensional enlarged structure of the present invention;
[0019] Figure 5 This is a schematic diagram of the three-dimensional front structure of the second turntable tooling of the present invention;
[0020] Figure 6 This is a schematic diagram of the three-dimensional rear view structure of the second turntable tooling of the present invention.
[0021] In the figure: 1. Equipment frame; 1001. Control keyboard; 2. First turntable fixture; 3. Second turntable fixture; 31. Stepper motor; 32. Processing fixture; 4. Five-link label printer; 5. Five-link label conveying mechanism; 51. Five-link label visual inspection mechanism; 6. Label folding mechanism; 61. Folding motor; 62. Folding sheet; 7. Single-link label printer; 8. Single-link label conveying mechanism; 81. Single-link label visual inspection mechanism; 9. Label loading mechanism; 10. Loading double-stack feeding mechanism; 101. Visual inspection Measuring mechanism; 11. Chain conveyor; 12. Screw package loading mechanism; 121. Screw package visual inspection mechanism; 13. Automatic bagging mechanism; 14. Packaging bag loading mechanism; 141. Electric slide; 142. Linear module; 143. Loading cylinder; 144. Adsorption head; 15. Automatic sealing mechanism; 16. Automatic unloading mechanism; 161. Support rod; 162. Horizontal cylinder; 163. Longitudinal cylinder; 164. Adsorption plate; 17. Unloading conveyor line; 19. Support rod; 20. Fixing plate; 21. Camera. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] The structure of an automatic bagging machine provided by the present invention is as follows Figure 1 as well as Figure 5 As shown, it includes an equipment frame 1 and a control keyboard 1001 installed on one side of the surface of the equipment frame 1. A first turntable tooling 2 and a second turntable tooling 3 are respectively provided on both sides of the surface of the equipment frame 1, and the first turntable tooling 2 and the second turntable tooling 3 are both driven to rotate by a stepper motor 31. Eight groups of processing stations are provided on the surface of the first turntable tooling 2, and the angle between each group of processing stations is forty-five degrees. Four groups of processing tools 32 are provided on the surface of the second turntable tooling 3, and the angle between each group of processing tools 32 is ninety degrees.
[0024] During implementation, the second turntable tooling 3 is driven to move by the stepper motor 31, and the angle of each movement of the second turntable tooling 3 is ninety degrees; at the same time, the stepper motor 31 under the first turntable tooling 2 works to drive the first turntable tooling 2 to rotate, and the angle of each movement of the first turntable tooling 2 is forty-five degrees.
[0025] Furthermore, if Figure 2 as well as Figure 4 As shown, a five-link label printer 4 is installed on the surface of the equipment frame 1 and on one side of the second turntable tooling 3 through a support frame. The model of the five-link label printer 4 can be ZEBRZ 105S, and a five-link label conveying mechanism 5 is provided at the label outlet end of the five-link label printer 4, and the five-link label conveying mechanism 5 is fixedly connected to the surface of the equipment frame 1. At the same time, a label folding mechanism 6 for folding labels is provided on the surface of the five-link label conveying mechanism 5. The label folding mechanism 6 is composed of a folding motor 61 and a folding sheet 62. There are two groups of folding motors 61, and the two groups of folding motors 61 are fixedly connected to the outer walls on both sides of the five-link label conveying mechanism 5. The output end of the folding motor 61 is installed with a folding sheet 62 through a coupling, and the folding sheet 62 extends to the interior of the five-link label conveying mechanism 5 and is used for folding labels. A single-link label printer 7 is installed on the side of the equipment frame 1 away from the five-link label printer 4 through a support frame. The model of the single-link label printer 7 can be ZEBRZ 105S, and a single-link label conveying mechanism 8 is installed at the label outlet end of the single-link label printer 7, and the single-link label conveying mechanism 8 is fixedly connected to the surface of the equipment frame 1; a label feeding mechanism 9 is arranged between the single-link label conveying mechanism 8 and the label folding mechanism 6, and the label feeding mechanism 9 is used to transport the folded labels to the surface of the first turntable tooling 2, and a double-stack feeding mechanism 10 is installed on one side of the first turntable tooling 2, and a chain conveyor 11 is fixed on the surface of the equipment frame 1 on the side of the double-stack feeding mechanism 10, and a screw bag feeding mechanism 12 for loading is installed on the surface of the equipment frame 1 on the side of the chain conveyor 11.
[0026] During implementation, the five-link label is printed by the five-link label printer 4, and after printing, it is conveyed by the five-link label conveying mechanism 5, and folded by the label folding mechanism 6 during conveying. At the same time, the single-link label is printed by the single-link label printer 7, and after printing, it is conveyed by the single-link label conveying mechanism 8. Subsequently, the five-link label and the single-link label are grabbed by the label feeding mechanism 9 and placed on the processing station on the surface of the first turntable tooling 2, and then the instruction manual is fed alternately in double stacks by the loading double-stack feeding mechanism 10. When the loading double-stack feeding mechanism 10 is implemented, since it is equipped with an automatic lifting mechanism for feeding, the robot automatically absorbs the instruction manual to the processing station of the first turntable tooling 2, and then the screw package is placed on the surface of the chain conveyor 11 and conveyed by the chain conveyor 11. After conveying, the screw package is loaded by the screw package loading mechanism 12 to the processing station on the surface of the first turntable tooling 2.
[0027] Furthermore, if Figure 3 as well as Figure 5 As shown, an automatic bagging mechanism 13 is provided on the surface of the equipment frame 1 between the first turntable tooling 2 and the second turntable tooling 3. The automatic bagging mechanism 13 transports the materials packaged by the first turntable tooling 2 to the surface of the second turntable tooling 3. A packaging bag loading mechanism 14 for placing packaging bags is fixed on the surface of the equipment frame 1 and located on one side of the second turntable tooling 3. The interior of the packaging bag loading mechanism 14 includes an electric slide 141, a linear module 142, a loading cylinder 143 and an adsorption head 144. The electric slide 141 is fixedly connected to the surface of the equipment frame 1, and the surface of the electric slide 141 is slidably connected to the linear module 142. The top of the linear module 142 is connected to two groups of loading cylinders 143, and the output end of the loading cylinder 143 is fixed with an adsorption head 144 for adsorbing packaging bags. An automatic sealing mechanism 15 for sealing is fixed on the surface of the equipment frame 1 between the second turntable tooling 3 and the five-link label printer 4, and an automatic unloading mechanism 16 and an unloading conveyor line 17 are fixed on one side of the automatic sealing mechanism 15 and located on the surface of the equipment frame 1. The automatic unloading mechanism 16 is composed of a support rod 161, a horizontal cylinder 162, a longitudinal cylinder 163 and an adsorption disk 164. The support rod 161 is fixedly connected to the surface of the equipment frame 1, and a horizontal cylinder 162 is horizontally installed on the top of the support rod 161. The surface of the horizontal cylinder 162 is slidably connected to the longitudinal cylinder 163, and the output end of the longitudinal cylinder 163 is fixed with an adsorption disk 164 for adsorbing articles, and the automatic unloading mechanism 16 transports the materials packaged by the second turntable tooling 3 to the surface of the unloading conveyor line 17.
[0028] During implementation, the packaging bags are alternately fed to the surface of the second turntable tooling 3 through the packaging bag loading mechanism 14, and the second turntable tooling 3 is rotated by the stepper motor 31, driving the packaging bags to move to the bottom of the automatic bagging mechanism 13. At this time, the automatic bagging mechanism 13 will grab the five-piece label, single-piece label, instruction manual and screw package on the surface of the first turntable tooling 2 and load them into the packaging bag. After packaging, it is sealed by the automatic sealing mechanism 15, and then the packaged packaging bag is adsorbed and transported to the surface of the unloading conveyor line 17 by the automatic unloading mechanism 16 for transportation and unloading.
[0029] Furthermore, if Figure 2 As shown, the surface of the equipment frame 1 on one side of the five-link label conveying mechanism 5, the single-link label conveying mechanism 8, the loading double-stack feeding mechanism 10 and the screw package loading mechanism 12 are respectively fixed with a five-link label visual inspection mechanism 51, a single-link label visual inspection mechanism 81, a visual inspection mechanism 101 and a screw package visual inspection mechanism 121. The five-link label visual inspection mechanism 51, the single-link label visual inspection mechanism 81, the visual inspection mechanism 101 and the screw package visual inspection mechanism 121 are respectively used for corresponding visual inspections. The five-link label visual inspection mechanism 51, the single-link label visual inspection mechanism 81, the visual inspection mechanism 101 and the screw package visual inspection mechanism 121 are all composed of a support rod 19, a fixing plate 20 and a camera 21. The support rod 19 is fixedly connected to the surface of the equipment frame 1 by four bolts, and a fixing plate 20 is installed on the top of the support rod 19, and a camera 21 for detection is fixed at one end of the bottom of the fixing plate 20.
[0030] During implementation, during the grabbing process of the label feeding mechanism 9, the grabbing and placement of the five-link label is visually inspected by the five-link label visual inspection mechanism 51, and the grabbing and placement of the single-link label is visually inspected by the single-link label visual inspection mechanism 81; the feeding of the instruction manual is visually inspected by the visual inspection mechanism 101, and then visual inspection is performed by the screw bag visual inspection mechanism 121 when the screw bag feeding mechanism 12 is loading.
[0031] Working principle: When in use, the five-link label is first printed by the five-link label printer 4, and then conveyed by the five-link label conveying mechanism 5 after printing. It is folded by the label folding mechanism 6 during conveying. At the same time, the single-link label is printed by the single-link label printer 7, and then conveyed by the single-link label conveying mechanism 8 after printing. Subsequently, the five-link label and the single-link label are grabbed by the label feeding mechanism 9 and placed on the processing station on the surface of the first turntable tooling 2. In this process, the grabbing and placement of the five-link label is visually inspected by the five-link label visual detection mechanism 51, and the grabbing and placement of the single-link label is visually inspected by the single-link label visual detection mechanism 81.
[0032] Subsequently, the double-stack feeding mechanism 10 feeds the instructions alternately in double stacks. When the double-stack feeding mechanism 10 is implemented, since it is equipped with an automatic lifting mechanism for feeding, the robot automatically absorbs the instructions to the processing station of the first turntable tooling 2. During this process, the feeding of the instructions is visually inspected by the visual inspection mechanism 101, and then the screw package is placed on the surface of the chain conveyor 11 and transported by the chain conveyor 11. After transportation, the screw package is loaded onto the processing station on the surface of the first turntable tooling 2 by the screw package loading mechanism 12. When the screw package loading mechanism 12 loads, the screw package visual inspection mechanism 121 is used for visual inspection.
[0033] Then the packaging bags are alternately fed to the surface of the second turntable tooling 3 through the packaging bag feeding mechanism 14, and the second turntable tooling 3 is rotated by the stepping motor 31, driving the packaging bags to move to the bottom of the automatic bagging mechanism 13. At this time, the automatic bagging mechanism 13 will grab the five-piece label, single-piece label, instruction manual and screw package on the surface of the first turntable tooling 2 and load them into the packaging bag. After packaging, it is sealed by the automatic sealing mechanism 15, and then the packaged packaging bag is adsorbed and transported to the surface of the unloading conveyor line 17 by the automatic unloading mechanism 16 for conveying and unloading. Finally, the automatic bagging machine completes its use.
[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An automatic bagging machine, comprising an equipment frame (1) and a control keyboard (1001) mounted on one side of the surface of the equipment frame (1), characterized in that: A first turntable fixture (2) and a second turntable fixture (3) are respectively provided on both sides of the surface of the equipment frame (1), and the first turntable fixture (2) and the second turntable fixture (3) are both driven to rotate by a stepping motor (31); a five-link label printer (4) is installed on the surface of the equipment frame (1) and on one side of the second turntable fixture (3) through a support frame, and a five-link label conveying mechanism (5) is provided at the label outlet end of the five-link label printer (4), and the five-link label conveying mechanism (5) is fixedly connected to the surface of the equipment frame (1), and the surface of the five-link label conveying mechanism (5) is provided with a A label folding mechanism (6) for folding labels is provided; a single-link label printer (7) is installed on the side of the equipment frame (1) away from the five-link label printer (4) through a support frame, and a single-link label conveying mechanism (8) is installed at the label outlet end of the single-link label printer (7), and the single-link label conveying mechanism (8) is fixedly connected to the surface of the equipment frame (1); a label feeding mechanism (9) is provided between the single-link label conveying mechanism (8) and the label folding mechanism (6), and the label feeding mechanism (9) is used to transport the folded labels to the surface of the first turntable tooling (2); the A double-stack feeding mechanism (10) is installed on one side of the first turntable fixture (2), and a chain conveyor (11) is fixed on the surface of the equipment frame (1) on the side of the double-stack feeding mechanism (10), and a screw bag feeding mechanism (12) for feeding is installed on the surface of the equipment frame (1) on the side of the chain conveyor (11); an automatic bagging mechanism (13) is provided on the surface of the equipment frame (1) between the first turntable fixture (2) and the second turntable fixture (3), and the automatic bagging mechanism (13) transports the materials packaged by the first turntable fixture (2) to the surface of the second turntable fixture (3) A packaging bag loading mechanism (14) for placing packaging bags is fixed on the surface of the equipment frame (1) and located on one side of the second turntable tooling (3); an automatic sealing mechanism (15) for sealing is fixed on the surface of the equipment frame (1) between the second turntable tooling (3) and the five-link label printer (4); and an automatic unloading mechanism (16) and an unloading conveyor line (17) are fixed on one side of the automatic sealing mechanism (15) and located on the surface of the equipment frame (1), and the automatic unloading mechanism (16) transports the materials packaged by the second turntable tooling (3) to the surface of the unloading conveyor line (17).
2. The automatic bagging machine according to claim 1, characterized in that: The surface of the first turntable tooling (2) is provided with eight groups of processing stations, and the angle between each group of processing stations is forty-five degrees. The surface of the second turntable tooling (3) is provided with four groups of processing tools (32), and the angle between each group of processing tools (32) is ninety degrees.
3. The automatic bagging machine according to claim 1, characterized in that: A five-link label visual inspection mechanism (51), a single-link label visual inspection mechanism (81), a visual inspection mechanism (101), and a screw pack visual inspection mechanism (121) are fixed to the surface of the equipment frame (1) on one side of the five-link label conveying mechanism (5), the single-link label conveying mechanism (8), the loading double-stack feeding mechanism (10), and the screw pack loading mechanism (12). The five-link label visual inspection mechanism (51), the single-link label visual inspection mechanism (81), the visual inspection mechanism (101), and the screw pack visual inspection mechanism (121) are respectively used for corresponding visual inspections.
4. The automatic bagging machine according to claim 3, characterized in that: The five-link label visual detection mechanism (51), the single-link label visual detection mechanism (81), the visual detection mechanism (101) and the screw package visual detection mechanism (121) are all composed of a support rod (19), a fixing plate (20) and a camera (21). The support rod (19) is fixedly connected to the surface of the equipment frame (1) by four bolts, and the top of the support rod (19) is provided with a fixing plate (20), and a camera (21) for detection is fixed at one end of the bottom of the fixing plate (20).
5. The automatic bagging machine according to claim 1, characterized in that: The label folding mechanism (6) is composed of a folding motor (61) and a folding sheet (62). Two groups of folding motors (61) are provided, and both groups of folding motors (61) are fixedly connected to the outer walls on both sides of the five-link label conveying mechanism (5). The output end of the folding motor (61) is installed with a folding sheet (62) through a coupling, and the folding sheet (62) extends to the interior of the five-link label conveying mechanism (5) and is used for folding labels.
6. The automatic bagging machine according to claim 1, characterized in that: The packaging bag feeding mechanism (14) includes an electric slide (141), a linear module (142), a feeding cylinder (143) and an adsorption head (144). The electric slide (141) is fixedly connected to the surface of the equipment frame (1), and the surface of the electric slide (141) is slidably connected to the linear module (142).
7. The automatic bagging machine according to claim 6, characterized in that: The top end of the linear module (142) is connected to two groups of feeding cylinders (143), and an adsorption head (144) for adsorbing packaging bags is fixed to the output end of the feeding cylinder (143).
8. The automatic bagging machine according to claim 1, characterized in that: The automatic unloading mechanism (16) is composed of a support rod (161), a transverse cylinder (162), a longitudinal cylinder (163) and an adsorption disk (164); the support rod (161) is fixedly connected to the surface of the equipment frame (1), and the transverse cylinder (162) is transversely installed at the top end of the support rod (161).
9. The automatic bagging machine according to claim 8, characterized in that: The surface of the transverse cylinder (162) is slidably connected to a longitudinal cylinder (163), and an adsorption disk (164) for adsorbing articles is fixed to the output end of the longitudinal cylinder (163).
Citation Information
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