Bottom folding mechanism of paper bag machine
The paper bag machine fold bottom mechanism addresses the challenge of folding different bag types by using adjustable clamps and interchangeable tools, ensuring accurate folding of square and hexagonal bottoms across varying sizes.
Patent Information
- Application Number
- CN202422369895.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Existing paper bag machines are difficult to adapt to the folding needs of square bottom and hexagonal bottom paper bags at the same time, and cannot be flexibly adjusted when the bag length or bag width changes.
A paper bag machine bottom folding mechanism is designed, including wall panels, spindles, large hub wheels, side clamps and open bottom parts. Through the horizontal and vertical adjustment of the side clamp mounting seat, combined with the switching of the paper press rod and open bag suction nozzle, the folding mode switching between the square bottom and hexagonal bottom is realized, and the accuracy of the bottom opening action is achieved through air path control.
It realizes flexible folding bottoms for square and hexagonal bottoms of paper bags of different specifications, adapts to changes in bag length and bag width, and ensures the accuracy and convenience of opening the bottom.
Smart Images
Figure CN223100134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a paper bag machine, in particular to a bottom folding mechanism of a paper bag machine. Background Art
[0002] After the paper bag is creased, the bottom of the bag needs to be clamped by side clamps, the bag opening is pulled open, the bottom is opened by an opening device, and then the bottom of the bag is clamped at the first clamping position and the second clamping position, and the bottom of the bag is completely sealed along the crease line by a bottom closing device. Among them, the side clamping position of the square bottom bag is the same as the first clamping position, and the paper bag is positioned with the first clamping position as the reference. When the bag length changes, the side clamp state does not need to be adjusted. The side clamping position of the hexagonal bottom bag is between the first clamping position and the second clamping position. When the bag length changes, the side clamping position needs to be adjusted. The square bottom bag uses a paper pressing rod to open the bottom, and the hexagonal bottom bag uses a suction nozzle to open the bottom. It is intended to design a bottom folding mechanism of a paper bag machine that can fold the hexagonal bottom and square bottom of paper bags of different specifications. Content of the Utility Model
[0003] In view of the technical problems existing in the background art, the utility model aims to provide a bottom folding mechanism of a paper bag machine, which can fold the bottom of both square bottom paper bags and hexagonal bottom paper bags.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions: The bottom folding mechanism of the paper bag machine includes wallboards, a main shaft, a large hub wheel, side clamp parts and a bottom opening part. The main shaft is rotatably arranged between the wallboards, the large hub wheel is installed on the main shaft, the large hub wheel is equipped with a bottom folding assembly, the bottom folding assembly includes side clamp parts and a bottom opening part, the side clamp parts include a side clamp mounting seat which is horizontally movably adjusted, the bottom opening part includes a bottom opening shaft which is rotatably arranged. Among them, an air passage is arranged in the bottom opening shaft, and the air passage is connected with an air source. The bottom folding assembly has a square bottom folding mode or a hexagonal bottom folding mode. When the bottom folding assembly is in the square bottom folding mode, the side clamp mounting seat is installed with square bottom side clamps, and the bottom opening shaft is installed with a paper pressing rod. When the bottom folding assembly is in the hexagonal bottom folding mode, a hexagonal bottom side clamp is longitudinally movably adjusted on the side clamp mounting seat, and the bottom opening shaft is installed with a bag opening suction nozzle, and the bag opening suction nozzle is communicated with the air passage.
[0005] In this solution, when folding the square bottom, the side clamp mounting seat is installed with square bottom side clamps, and the bottom opening shaft is installed with a paper pressing rod to cooperate to complete the bottom opening. For the change of the bag width, the side clamp mounting seat can be horizontally movably adjusted to adapt. When folding the hexagonal bottom, the side clamp mounting seat is installed with hexagonal bottom side clamps, and the bottom opening shaft is installed with a bag opening suction nozzle to cooperate to complete the bottom opening. For the change of the bag width, the side clamp mounting seat can be horizontally movably adjusted, and for the change of the bag length, the hexagonal bottom side clamp can be longitudinally movably adjusted to meet the hexagonal bottom folding requirements of paper bags of different specifications.
[0006] Preferably, the side clamp mounting seat is axially movably adjusted on the main shaft.
[0007] In this solution, the side clamp mounting seat and the large hub wheel both move with the main shaft. The number of transmission stages is the same, and their relative states remain unchanged during the movement, ensuring the accuracy of the side clamp. Moreover, it is directly adjusted on the main shaft, and the relative state is adjusted based on the main shaft, ensuring accurate adjustment.
[0008] Preferably, when the bottom folding assembly is in the hexagonal bottom folding mode, a side clamp adjusting seat is installed on the side clamp mounting seat. An adjusting groove is provided on the side clamp adjusting seat, and the hexagonal bottom side clamp is slidably and positionally connected to the adjusting groove.
[0009] In this solution, a side clamp adjusting seat is designed to increase the longitudinal adjustment function.
[0010] Preferably, a transmission gear is provided at one end of the bottom opening shaft, and the transmission gear is in transmission connection with a power source. An air suction disc and a ventilation disc are sleeved at the other end of the bottom opening shaft. The air suction disc is provided with an air inlet, and the air inlet is communicated with the air source. The ventilation disc is provided with an air inlet channel, and the air inlet channel is communicated with the air path. The ventilation disc has a first state and a second state. The ventilation disc rotates with the bottom opening shaft and switches between the first state and the second state. When the ventilation disc is in the first state, the air inlet channel is communicated with the air inlet. When the ventilation disc is in the second state, the air inlet channel is not communicated with the air inlet.
[0011] In this solution, the ventilation disc rotates with the bottom opening shaft, causing the air path to be intermittently communicated with and disconnected from the air source, adapting to the bottom opening action of the hexagonal bottom.
[0012] Preferably, a bottom opening adjusting seat is sleeved in the middle of the bottom opening shaft. The bottom opening adjusting seat is provided with a slot. When the bottom folding assembly is in the hexagonal bottom folding mode, a nozzle rod is installed in the slot, and the bag opening suction nozzle is installed on the nozzle rod. When the bottom folding assembly is in the square bottom folding mode, a paper pressing rod is installed in the slot.
[0013] In this solution, a bottom opening adjusting seat with a slot is designed for installing the nozzle rod and the paper pressing rod, which is convenient for replacement.
[0014] The beneficial effects of the present utility model are that it can fold the bottom of both square bottom paper bags and hexagonal bottom paper bags, and can also adapt to specification changes. Therefore, the present utility model has substantial features and progress compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The following describes the implementation manners of the present utility model, the relevant details and working principles of the embodiments with reference to the drawings.
[0016] Figure 1 It is a schematic structural diagram of the present utility model.
[0017] Figure 2 It is a schematic structural diagram of the bottom opening shaft in the present utility model.
[0018] Figure 3 This is a schematic structural diagram of the paper pressing rod installed on the bottom-opening adjusting seat in the present utility model.
[0019] Figure 4 This is a schematic structural diagram of the bag opening suction nozzle installed on the bottom-opening adjusting seat in the present utility model.
[0020] Figure 5 This is a schematic diagram of the clamping position when folding a square bottom in the present utility model.
[0021] Figure 6 This is a schematic diagram of the clamping position when folding a hexagonal bottom in the present utility model.
[0022] In the figure: 1, wall panel; 2, main shaft; 3, air circuit; 4, bottom folding assembly; 5, side clamping member; 6, large hub wheel; 7, side clamping mounting seat; 8, bottom-opening shaft; 9, square bottom side clamp; 10, paper pressing rod; 11, hexagonal bottom side clamp; 12, bag opening suction nozzle; 13, side clamping adjusting seat; 14, transmission gear; 15, suction disc; 16, ventilation disc; 17, air inlet; 18, air inlet passage; 19, bottom-opening adjusting seat; 22, first clamping position; 23, second clamping position; 24, side clamping position; 25, air nozzle rod. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.
[0025] In the description of the present application, terms such as "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.
[0026] See the appendix Figure 1-6, in an embodiment of this implementation manner, a bottom folding mechanism of a paper bag machine includes a wallboard 1, a main shaft 2, a large hub wheel 6, a side clamp 5, and a bottom opening member. The main shaft 2 is rotatably arranged between the wallboards 1. The large hub wheel 6 is installed on the main shaft 2. The large hub wheel 6 is equipped with a bottom folding assembly 4. The bottom folding assembly 4 includes a side clamp 5 and a bottom opening member. The side clamp 5 includes a side clamp mounting seat 7. The side clamp mounting seat 7 is axially movably adjusted and arranged on the main shaft 2. The bottom opening member includes a bottom opening shaft 8. The bottom opening shaft 8 is rotatably arranged.
[0027] Among them, an air path 3 is arranged inside the bottom opening shaft 8. The air path 3 is connected to a gas source. The bottom folding assembly 4 has a square bottom folding mode or a hexagonal bottom folding mode. When the bottom folding assembly 4 is in the square bottom folding mode, the square bottom side clamp 9 is installed on the side clamp mounting seat 7, and the paper pressing rod 10 is installed on the bottom opening shaft 8. When the bottom folding assembly 4 is in the hexagonal bottom folding mode, a side clamp adjusting seat 13 is installed on the side clamp mounting seat 7. An adjusting groove is arranged on the side clamp adjusting seat 13. The hexagonal bottom side clamp 11 is slidably and positionedly connected with the adjusting groove. The bottom opening suction nozzle 12 is installed on the bottom opening shaft 8. The bottom opening suction nozzle 12 is communicated with the air path 3.
[0028] In this implementation manner, the rotation direction of the large hub wheel 6 is from front to back. The front-back direction is the longitudinal direction, and the left-right direction is the transverse direction. A side clamp web sleeve is slidably arranged on the main shaft 2. The side clamp web sleeve installs a side clamp web. The side clamp web is connected to the side clamp mounting seat 7. The side clamp mounting seat 7 is a mature technology. When folding a square bottom, the square bottom side clamp 9 and the paper pressing rod 10 cooperate to complete the bottom opening at the first clamping position 22. When the bag width changes, the side clamp web sleeve slides along the main shaft 2 to drive the side clamp mounting seat 7 for transverse adjustment. When folding a hexagonal bottom, the hexagonal bottom side clamp 11 is between the first clamping position 22 and the second clamping position 23, and cooperates with the bottom opening suction nozzle 12 to complete the bottom opening. When the bag width changes, the side clamp web sleeve slides along the main shaft 2 to drive the side clamp mounting seat 7 for transverse adjustment. When the bag length changes, the hexagonal bottom side clamp 11 slides along the adjusting groove and is repositioned for longitudinal adjustment.
[0029] See the appendix Figure 2-4, one end of the open-bottom shaft 8 is provided with a transmission gear 14, the transmission gear 14 is in transmission connection with a power source, the other end of the open-bottom shaft 8 is sleeved with a suction disc 15 and a ventilation disc 16, the suction disc 15 is provided with an air inlet 17, the air inlet 17 is communicated with the air source, the ventilation disc 16 is provided with an air inlet channel 18, the air inlet channel 18 is communicated with the air path 3, the ventilation disc 16 has a first state and a second state, the ventilation disc 16 rotates with the open-bottom shaft 8 and switches between the first state and the second state, when the ventilation disc 16 is in the first state, the air inlet channel 18 is communicated with the air inlet 17, when the ventilation disc 16 is in the second state, the air inlet channel 18 is not communicated with the air inlet 17, the middle part of the open-bottom shaft 8 is sleeved with an open-bottom adjusting seat 19, the open-bottom adjusting seat 19 is provided with a slot, when the bottom folding assembly 4 is in the hexagonal bottom folding mode, the air nozzle rod 25 is installed in the slot, the bag opening suction nozzle 12 is installed on the air nozzle rod 25, when the bottom folding assembly 4 is in the square bottom folding mode, the paper pressing rod 10 is installed in the slot.
[0030] In this embodiment, the ventilation disc 16 rotates with the open-bottom shaft 8 to make the air path 3 communicate with and disconnect from the air source at intervals. When opening the bottom, the air path 3 is communicated with the air source, and after the bottom opening is completed, the air path 3 is disconnected from the air source, ensuring the accuracy of bottom opening. The open-bottom adjusting seat 19 is used for installing the air nozzle rod 25 and the paper pressing rod 10, and the replacement is convenient.
[0031] The above is the preferred embodiment of the present invention. It should be noted that the protection scope of the present invention is not limited thereto. For those skilled in the art of this technology, without departing from the technical scope disclosed by the present invention under the premise of the same inventive concept, several improvements, refinements or equivalent replacements can also be made, which are also regarded as the protection scope of the present invention.
Claims
1. A bottom folding mechanism for a paper bag machine, comprising a wallboard (1); a main shaft (2) rotatably arranged between the wallboards (1); a large hub wheel (6) mounted on the main shaft (2), the large hub wheel (6) being equipped with a bottom folding assembly (4), the bottom folding assembly (4) including a side clamp (5) and a bottom opening member; a side clamp (5) including a side clamp mounting seat (7), the side clamp mounting seat (7) being arranged for lateral movement adjustment; a bottom opening member including a bottom opening shaft (8), the bottom opening shaft (8) being rotatably arranged; It is characterized in that: an air passage (3) is provided in the bottom opening shaft (8), the air passage (3) being connected to an air source, and the bottom folding assembly (4) having a square bottom folding mode or a hexagonal bottom folding mode; when the bottom folding assembly (4) is in the square bottom folding mode, the side clamp mounting seat (7) mounts a square bottom side clamp (9), and the bottom opening shaft (8) mounts a paper pressing rod (10); when the bottom folding assembly (4) is in the hexagonal bottom folding mode, a hexagonal bottom side clamp (11) is longitudinally movably adjusted on the side clamp mounting seat (7), the bottom opening shaft (8) mounts a bag opening suction nozzle (12), and the bag opening suction nozzle (12) is communicated with the air passage (3).
2. The bottom folding mechanism of a paper bag machine according to claim 1, characterized in that: The side clamp mounting seat (7) is axially movably adjusted on the main shaft (2).
3. The bottom folding mechanism of a paper bag machine according to claim 1, characterized in that: when the bottom folding assembly (4) is in the hexagonal bottom folding mode, the side clamp mounting seat (7) mounts a side clamp adjusting seat (13), an adjusting groove is provided on the side clamp adjusting seat (13), and the hexagonal bottom side clamp (11) is slidably and positionally connected with the adjusting groove.
4. A bottom folding mechanism for a paper bag machine according to claim 1, characterized in that: a transmission gear (14) is provided at one end of the bottom opening shaft (8), the transmission gear (14) being in transmission connection with a power source, a suction disc (15) and a ventilation disc (16) are sleeved at the other end of the bottom opening shaft (8), an air inlet (17) is provided on the suction disc (15), the air inlet (17) being communicated with the air source, an air inlet passage (18) is provided on the ventilation disc (16), the air inlet passage (18) being communicated with the air passage (3), the ventilation disc (16) having a first state and a second state, the ventilation disc (16) rotating with the bottom opening shaft (8) to switch between the first state and the second state, when the ventilation disc (16) is in the first state, the air inlet passage (18) is communicated with the air inlet (17), and when the ventilation disc (16) is in the second state, the air inlet passage (18) is not communicated with the air inlet (17).
5. A bottom folding mechanism for a paper bag machine according to claim 1, characterized in that: a bottom opening adjusting seat (19) is sleeved in the middle of the bottom opening shaft (8), and the bottom opening adjusting seat (19) is provided with a slot; when the bottom folding assembly (4) is in the hexagonal bottom folding mode, a nozzle rod (25) is installed in the slot, and the bag opening suction nozzle (12) is installed on the nozzle rod (25); when the bottom folding assembly (4) is in the square bottom folding mode, the paper pressing rod (10) is installed in the slot.