Novel gas circuit control retaining mechanism applied to tobacco packaging machine
By designing a new gas-circuit control and stop-retardation mechanism on the tobacco packaging machine, the problem of transparent paper rolls falling after production is solved, ensuring the safety and production efficiency of the equipment.
Patent Information
- Application Number
- CN202421910075.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-08
AI Technical Summary
During the production process of tobacco packaging machines, transparent paper rolls are prone to fall between the movable cone top and the clamping cylinder after production, resulting in damage to the underlying equipment parts.
A new type of gas path control and stop-retardation mechanism is designed, including the first gas path, the second gas path, the third gas path, the fourth gas path, the two-position five-way valve and the pilot check valve. By controlling the position of the gas path and the valve, the piston rod remains extended after the production is completed, and the transparent paper roll is prevented from falling.
It effectively avoids the fall of transparent paper rolls from the movable cone top and the clamping cylinder after production, and eliminates the risk of damage to equipment parts and raw and auxiliary materials caused by drop.
Smart Images
Figure CN223031419U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tobacco packaging equipment, in particular to a novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine. Background Art
[0002] During the production of tobacco, a transparent paper roll needs to be clamped between a movable cone top and a clamping cylinder of a tobacco packaging machine. During actual production, as Figure 1 shown, the gas in the main air circuit 1 enters the clamping cylinder 3 through a five-way two-position valve 2, so that the piston rod in the clamping cylinder 3 extends outwards. Then, with the cooperation of the movable cone top 4, the fixation of the transparent paper roll 5 is realized.
[0003] However, when the production ends, the compressed air in the main air circuit 1 is cut off, the clamping cylinder 3 will lose the supply of compressed air, and the movable cone top 4 with a compression spring will push the transparent paper roll 5 towards the clamping cylinder 3. At this time, since there is no compressed air in the clamping cylinder 3, the piston rod will retract. After the movable cone top 4 moves a certain distance, the transparent paper roll 5 will fall from between the movable cone top 4 and the clamping cylinder 3, resulting in its own damage. Moreover, it may also damage the rodless cylinder, oil cylinder and other equipment parts arranged below it. Summary of the Utility Model
[0004] The utility model provides a novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine, which is used to solve the defect that the transparent paper roll will fall from between the movable cone top and the clamping cylinder after the production ends in the prior art, resulting in its own damage, and moreover, it may also damage the rodless cylinder, oil cylinder and other equipment parts arranged below it.
[0005] The utility model provides a novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine. The tobacco packaging machine includes a clamping cylinder, and the clamping cylinder includes a cylinder barrel and a piston rod. A first air cavity and a second air cavity are arranged in the cylinder barrel. The piston rod can contract towards the inside of the cylinder barrel when air is injected into the first air cavity, and the piston rod can extend towards the outside of the cylinder barrel when air is injected into the second air cavity.
[0006] The novel air circuit control anti-retreat mechanism includes: a first air circuit, a second air circuit, a third air circuit, a fourth air circuit, a two-position five-way valve, and a pilot-operated check valve. Among them, one end of the first air circuit is connected to the main air circuit, and the other end is connected to the two-position five-way valve; one end of the second air circuit is connected to the two-position five-way valve, and the other end is connected to the first air chamber; one end of the third air circuit is connected to the two-position five-way valve, and the other end is connected to the second air chamber. The pilot-operated check valve is arranged on the third air circuit, and the pilot-operated check valve is used to limit the gas in the second air chamber from flowing back to the two-position five-way valve. One end of the fourth air circuit is connected to the main air circuit, and the other end is connected to the pilot port of the pilot-operated check valve.
[0007] According to a novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine provided by the present invention, the two-position five-way valve has a first air outlet interface, a second air outlet interface, an air inlet interface, a first air exhaust interface, and a second air exhaust interface. The first air outlet interface is connected to the second air circuit, the second air outlet interface is connected to the third air circuit, the air inlet interface is connected to the first air circuit, and the first air exhaust interface and the second air exhaust interface are connected to an air outlet circuit. Among them,
[0008] When the two-position five-way valve is in the first control position, the air inlet interface communicates with the first air outlet interface, and the second air outlet interface communicates with the second air exhaust interface;
[0009] When the two-position five-way valve is in the second control position, the air inlet interface communicates with the second air exhaust interface, and the first air outlet interface communicates with the first air exhaust interface.
[0010] According to a novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine provided by the present invention, it further includes a one-way throttle valve. The one-way throttle valve is arranged on the third air circuit, and the one-way throttle valve is located between the two-position five-way valve and the pilot-operated check valve. The one-way throttle valve is used to control the outflow speed of the air in the second air chamber.
[0011] The novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine provided by the present invention includes: a first air circuit, a second air circuit, a third air circuit, a fourth air circuit, a two-position five-way valve, and a pilot-operated check valve. During the process of the tobacco packaging machine producing a transparent paper roll, it can prevent the transparent paper roll from falling between the movable cone top and the clamping cylinder after the production is completed, and completely eliminate the risk of damaging equipment parts and raw and auxiliary materials due to the falling of the transparent paper roll. Description of the Drawings
[0012] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0013] Figure 1 is a schematic diagram of the installation of a transparent paper roll in the related art;
[0014] Figure 2 is a schematic structural diagram of a new air circuit control anti-retreat mechanism applied to a tobacco packaging machine according to an embodiment of the present utility model.
[0015] Reference numerals:
[0016] 1, main air circuit; 2, five-way two-position valve; 3, clamping cylinder; 4, movable cone top; 5, transparent paper roll; 11, clamping cylinder; 12, movable cone top; 13, transparent paper roll; 14, main air circuit; 21, first air circuit; 22, second air circuit; 23, third air circuit; 24, fourth air circuit; 25, five-way two-position valve; 26, pilot check valve; 27, one-way throttle valve. Detailed implementation manners
[0017] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model with reference to the drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0018] In an embodiment according to the present utility model, a new air circuit control anti-retreat mechanism applied to a tobacco packaging machine is provided. This mechanism can be installed in the tobacco packaging machine. After the production and processing of the transparent paper roll are completed, it can effectively prevent the piston rod in the clamping cylinder from retracting, and further prevent the transparent paper roll from falling between the clamping cylinder and the movable cone top. The following will further describe the new air circuit control anti-retreat mechanism applied to the tobacco packaging machine in this embodiment with reference to Figure 2 shown below.
[0019] Specifically, as Figure 2 shown, in this embodiment, the tobacco packaging machine includes a clamping cylinder 11 and a movable cone top 12. The clamping cylinder 11 and the movable cone top 12 can be fixedly arranged on the production machine table respectively by means of structures such as support seats. Moreover, the clamping cylinder 11 and the movable cone top 12 can be arranged relatively, and a transparent paper roll 13 can be clamped between the two.
[0020] Among them, the clamping cylinder 11 includes a cylinder barrel and a piston rod. A first air chamber and a second air chamber are arranged inside the cylinder barrel. The piston rod can contract towards the inside of the cylinder barrel when air is injected into the first air chamber, and the piston rod can extend towards the outside of the cylinder barrel when air is injected into the second air chamber.
[0021] It can be understood that a support sleeve and a clamping block for clamping the transparent paper roll 13 can be arranged at the end of the piston rod, and the clamping block is used to directly abut against the transparent paper roll 13. When compressed air is injected into the first air chamber, the piston rod can retract inward and move away from the movable cone top 12. When compressed air is injected into the second air chamber, the piston rod can extend outward and move towards the movable cone top 12.
[0022] The movable cone top 12 includes a top cover, a compression spring and a bearing seat. The top cover is installed on the bearing seat via the compression spring. The top cover is used to directly abut against the transparent paper roll 13, and the top cover in the movable cone top 12 and the clamping block in the clamping cylinder 11 are arranged opposite to each other.
[0023] In order to effectively control the clamping cylinder 11, as Figure 2 shown, the novel air circuit control anti-retreat mechanism applied to a tobacco packaging machine in this embodiment includes: a first air circuit 21, a second air circuit 22, a third air circuit 23, a fourth air circuit 24, a two-position five-way valve 25 and a pilot-operated check valve 26.
[0024] Among them, one end of the first air circuit 21 is connected to the main air circuit 14, and the other end is connected to the two-position five-way valve 25; one end of the second air circuit 22 is connected to the two-position five-way valve 25, and the other end is connected to the first air chamber; one end of the third air circuit 23 is connected to the two-position five-way valve 25, and the other end is connected to the second air chamber. The pilot-operated check valve 26 is arranged on the third air circuit 23. The pilot-operated check valve 26 is used to restrict the gas in the second air chamber from flowing back to the two-position five-way valve 25. One end of the fourth air circuit 24 is connected to the main air circuit 14, and the other end is connected to the pilot port of the pilot-operated check valve 26.
[0025] Exemplarily, the first air circuit 21, the second air circuit 22, the third air circuit 23, and the fourth air circuit 24 are all rubber pipelines, and these air circuits can transmit compressed air.
[0026] The main air circuit 14 can supply compressed air.
[0027] The two-position five-way valve 25 has five connection ports and two control positions, and it can control the compressed air supplied in the main air circuit 14 to be transmitted to the clamping cylinder 11.
[0028] The pilot-operated one-way valve 26 allows the compressed air from the five-port two-position valve 25 to smoothly enter the second air chamber of the clamping cylinder 11 and restricts the gas in the second air chamber from flowing back to the five-port two-position valve 25. At the same time, the pilot port of the pilot-operated one-way valve 26 is connected to the main air path 14 via the fourth air path 24. In the state where the main air path 14 supplies compressed air, the pilot-operated one-way valve 26 enables the compressed air to achieve two-way flow. In the state where the main air path 14 does not supply compressed air, the pilot-operated one-way valve 26 can only maintain the one-way flow of the gas.
[0029] During actual production, the transparent paper roll 13 can be placed between the clamping block of the clamping cylinder 11 and the top cover of the movable cone top 12. Then, adjust the control position of the five-port two-position valve 25 so that the compressed air in the main air path 14 can be injected into the second air chamber, causing the piston rod of the clamping cylinder 11 to extend outward and move towards the movable cone top 12, so that the top cover and the clamping block can respectively fix the transparent paper roll 13 from both sides.
[0030] It can be understood that the compression spring in the movable cone top 12 can play a buffering role. During the process of the piston rod moving towards the movable cone top 12 and clamping the transparent paper roll 13, the compression spring can contract, thus avoiding damaging the transparent paper roll 13.
[0031] After production is completed, the control position of the five-port two-position valve 25 remains unchanged, so that the main air path 14 no longer supplies compressed air. At this time, there is no compressed air at the pilot port of the pilot-operated one-way valve 26, and the compressed air in the second air chamber cannot flow back. The piston rod of the clamping cylinder 11 can be maintained at the current position, thus avoiding the transparent paper roll 13 from falling.
[0032] It can be seen that by means of the new air path control anti-retreat mechanism applied to the tobacco packaging machine in this embodiment, during the process of the tobacco packaging machine producing the transparent paper roll, it is possible to avoid the transparent paper roll from falling between the movable cone top and the clamping cylinder after production is completed, completely eliminating the risk of damaging equipment parts and raw and auxiliary materials due to the falling of the transparent paper roll.
[0033] Furthermore, for effective control, as Figure 2 shown, the five-port two-position valve 25 has a first air outlet interface A, a second air outlet interface B, an air inlet interface P, a first air exhaust interface R, and a second air exhaust interface S. The first air outlet interface A is connected to the second air path 22, the second air outlet interface B is connected to the third air path 23, the air inlet interface P is connected to the first air path 21, and the first air exhaust interface R and the second air exhaust interface S are connected to the air outlet circuit.
[0034] When the five-port two-position valve 25 is in the first control position, the air inlet interface P is communicated with the first air outlet interface A, and the second air outlet interface B is communicated with the second air exhaust interface S;
[0035] When the five-port two-way valve 25 is in the second control position, the intake port P is connected to the second exhaust port B, and the first exhaust port A is connected to the first exhaust port P.
[0036] It can be understood that the exhaust circuit can be used to recycle air and can be connected to the external atmosphere.
[0037] During the actual production process, when it is necessary to clamp the transparent paper roll 13, the five-port two-way valve 25 can be placed in the second control position. Then, the main air path 14 is supplied with compressed air. At this time, the compressed air in the main air path 14 can enter the second air chamber of the clamping cylinder 11 through the five-port two-way valve 25 and the pilot check valve 26, enabling the piston rod in the clamping cylinder 11 to extend outward to clamp the transparent paper roll 13. After the production is completed, the five-port two-way valve 25 can be kept in the second control position, and the main air path 14 stops supplying compressed air.
[0038] When it is necessary to remove the transparent paper roll 13 between the clamping cylinder 11 and the movable cone top 12, the five-port two-way valve 25 can be placed in the first control position. Then, the main air path 14 is supplied with compressed air. At this time, the compressed air in the main air path 14 can enter the first air chamber of the clamping cylinder 11 through the five-port two-way valve 25, enabling the piston rod in the clamping cylinder 11 to retract inward to release the transparent paper roll 13.
[0039] Further, as Figure 2 shown, the new air path control anti-retreat mechanism further includes a one-way throttle valve 27. The one-way throttle valve 27 is arranged on the third air path 23. The one-way throttle valve 27 is located between the five-port two-way valve 25 and the pilot check valve 26, and the one-way throttle valve 27 is used to control the outflow speed of the air in the second air chamber.
[0040] Through the above setting method, with the help of the one-way throttle valve 27, the outflow speed of the gas in the second air chamber can be effectively restricted, thereby restricting the retraction speed of the piston rod after the piston rod of the clamping cylinder 11 extends outward.
[0041] Exemplarily, the intake pressure provided in the main air path 14 usually remains at the maximum value.
[0042] When it is necessary to make the piston rod of the clamping cylinder 11 extend outward, the five-port two-way valve 25 can be used to connect the first air path 21 and the third air path 23. The compressed air provided in the main air path 14 enters the second air chamber at the maximum pressure. At this time, by restricting the exhaust speed of the first air chamber, the extension speed of the piston rod of the clamping cylinder 11 can be controlled.
[0043] When it is necessary to retract the piston rod of the clamping cylinder 11 inward, the two-position five-way valve 25 can be used to connect the first air passage 21 and the second air passage 22. The compressed air provided in the main air passage 14 enters the first air chamber at the maximum pressure. At this time, by restricting the exhaust speed of the second air chamber through the one-way throttle valve 27, the speed at which the piston rod of the clamping cylinder 11 retracts inward can be controlled.
[0044] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A new type of air path control stop mechanism used in tobacco packaging machines, characterized in that: The tobacco packaging machine comprises a clamping cylinder, the clamping cylinder comprises a cylinder barrel and a piston rod, the cylinder barrel is provided with a first air cavity and a second air cavity, the piston rod can be retracted toward the inside of the cylinder barrel when air is injected into the first air cavity, and the piston rod can be extended toward the outside of the cylinder barrel when air is injected into the second air cavity, The novel air circuit controlled anti-retraction mechanism includes: a first air circuit, a second air circuit, a third air circuit, a fourth air circuit, a two-position five-way valve and a pilot one-way valve, wherein one end of the first air circuit is connected to the main air circuit, and the other end is connected to the two-position five-way valve; one end of the second air circuit is connected to the two-position five-way valve, and the other end is connected to the first air cavity; one end of the third air circuit is connected to the two-position five-way valve, and the other end is connected to the second air cavity, the pilot one-way valve is arranged on the third air circuit, and the pilot one-way valve is used to limit the gas in the second air cavity from flowing back to the two-position five-way valve, and one end of the fourth air circuit is connected to the main air circuit, and the other end is connected to the pilot port of the pilot one-way valve.
2. The novel air path control stop mechanism for tobacco packaging machine according to claim 1 is characterized in that: The two-position five-way valve has a first air outlet interface, a second air outlet interface, an air inlet interface, a first exhaust interface and a second exhaust interface, wherein the first air outlet interface is connected to the second air circuit, the second air outlet interface is connected to the third air circuit, the air inlet interface is connected to the first air circuit, and the first exhaust interface and the second exhaust interface are connected to the air outlet circuit, wherein: When the two-position five-way valve is located at the first control position, the air inlet interface is connected to the first air outlet interface, and the second air outlet interface is connected to the second air exhaust interface; When the two-position five-way valve is located at the second control position, the air inlet interface is connected to the second exhaust interface, and the first air outlet interface is connected to the first exhaust interface.
3. The novel air path control stop mechanism for tobacco packaging machine according to claim 1 is characterized in that: It also includes a one-way throttle valve, which is arranged on the third air path, and is located between the two-position five-way valve and the pilot one-way valve, and is used to control the outflow speed of the air in the second air cavity.