A device for removing aluminum foil from a hard cigarette carton packaging machine
The aluminum foil rejection device, which combines a cylinder and a solenoid valve, solves the reliability and noise problems of the aluminum foil rejection mechanism in hard cigarette box packaging machines, achieving fast and accurate aluminum foil rejection and improving packaging quality and device stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 周恒正
- Filing Date
- 2025-02-25
- Publication Date
- 2026-06-02
AI Technical Summary
The aluminum foil rejection mechanism of existing hard cigarette box packaging machines suffers from poor reliability, short lifespan, and limited switching frequency due to the large impact of electromagnet reversal, high temperature rise, poor sealing performance, and easy dust accumulation.
The aluminum foil rejection device uses a combination of cylinder and solenoid valve. The cylinder piston rod is controlled by the solenoid valve. The front and rear air chambers of the cylinder are connected to the exhaust muffler respectively. It uses a three-position five-way center-sealed solenoid valve and a pressure regulating valve, combined with an air source and controller to achieve automatic control.
It enables rapid and accurate removal of aluminum foil, reduces noise, improves packaging quality and equipment reliability, extends service life, and is highly adaptable.
Smart Images

Figure CN224312138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rigid cigarette box packaging machines, specifically to an aluminum foil rejection device for rigid cigarette box packaging machines. Background Technology
[0002] The aluminum foil rejection mechanism on the GDX2 hard cigarette pack packaging machine is driven by an electromagnet. The original electromagnet for this mechanism is a Magnet-Schultz WHCX070, operating at 24V AC, with a stroke of 8mm and an output thrust of 38N. AC electromagnets have a large starting force and short commutation time. However, they experience significant commutation impact and high operating temperature (although the casing has cooling fins). The valve core has poor sealing performance, and its upward-facing installation position makes it very prone to dust and tobacco debris accumulation. Severe dust accumulation on the valve core can lead to a decrease in the electromagnet's output thrust and a shortened stroke. In severe cases, if the valve core becomes stuck, the electromagnet is prone to burnout due to excessive current, resulting in poor reliability. Therefore, the switching frequency should not exceed 30 times / min, and its lifespan is relatively short.
[0003] Therefore, an aluminum foil rejection device for rigid cigarette box packaging machines is proposed. Utility Model Content
[0004] The present invention aims to solve the problems mentioned in the background art by providing an aluminum foil rejection device for a hard cigarette box packaging machine.
[0005] The specific technical solution is as follows:
[0006] An aluminum foil rejection device for a rigid cigarette box packaging machine includes an aluminum foil rejection mechanism. The aluminum foil rejection mechanism includes a support, a cylinder seat, a cylinder, and a solenoid valve. The support is fixedly installed on the aluminum foil rejection part of the rigid cigarette box packaging machine. The cylinder seat is fixedly installed on the support. The cylinder and the solenoid valve are both fixedly installed on the cylinder seat. The piston rod of the cylinder can push off the aluminum foil to be rejected. The solenoid valve is installed on the air pipe between the cylinder and the air source.
[0007] In a preferred embodiment of this utility model, the front chamber and the rear chamber of the cylinder are respectively connected to the air source, and the rear chamber of the cylinder is connected to an exhaust muffler, and the front chamber of the cylinder is connected to an exhaust muffler.
[0008] In a preferred embodiment of this utility model, when the solenoid valve is de-energized, the front chamber of the cylinder is connected to the air source, and the rear chamber is connected to the exhaust muffler, and the piston rod of the cylinder remains in the retracted state; when energized, the solenoid valve reverses, the rear chamber of the cylinder is connected to the air source, the front chamber is connected to the exhaust muffler, and the piston rod quickly extends to push off the aluminum foil to be removed.
[0009] In a preferred embodiment of this utility model, the exhaust mufflers are all fixedly installed on the bracket or the cylinder seat.
[0010] As a preferred embodiment of this utility model, the exhaust muffler includes a housing, sound-absorbing cotton, and a perforated end cap. The housing is a cylindrical structure with a connection port at one end, which is used to connect to the air chamber of the cylinder. The sound-absorbing cotton is filled inside the housing. The perforated end cap is threadedly installed on the end of the housing away from the connection port to prevent the sound-absorbing cotton from being blown out and to filter impurities in the exhaust gas.
[0011] As a preferred embodiment of this utility model, the outer shell is made of stainless steel, which has good corrosion resistance and strength; the sound-absorbing cotton is made of glass fiber cotton, which can effectively reduce exhaust noise; and the perforated end cap is made of stainless steel with a hole size of 0.1-0.5mm.
[0012] As a preferred embodiment of this utility model, the solenoid valve is a three-position five-way center-sealed solenoid valve, model 4V310-10. This solenoid valve has good switching performance and sealing performance, and can accurately control the movement of the cylinder.
[0013] As a preferred embodiment of this utility model, the bracket is provided with multiple mounting holes. The bracket is fixed to the aluminum foil removal part of the hard cigarette box packaging machine by bolts passing through the mounting holes. The mounting holes are oblong holes, which can adjust the installation position of the bracket within a certain range.
[0014] As a preferred embodiment of this utility model, a rubber cap is installed at the end of the piston rod of the cylinder. The rubber cap can increase the contact area with the aluminum foil to be removed, thus avoiding scratching the aluminum foil and cigarette box.
[0015] As a preferred embodiment of this utility model, a pressure regulating valve is installed on the air pipe between the air source and the solenoid valve. The pressure regulating valve is used to adjust the air pressure of the air source to meet the working requirements of the cylinder.
[0016] This utility model has the following beneficial effects:
[0017] The aluminum foil rejection device for a rigid cigarette box packaging machine provided by this utility model can quickly and accurately remove the aluminum foil to be rejected through the rapid extension of the cylinder piston rod, ensuring the normal operation of the rigid cigarette box packaging machine and improving packaging quality. The cylinder drive has strong thrust and dustproof sealing performance. The two air chambers of the cylinder only blow air outward through the exhaust silencer, and will not suck dust and tobacco fragments into the device. The exhaust silencer is connected to the front air chamber and the rear air chamber of the cylinder respectively. The exhaust silencer adopts the structure of stainless steel shell, glass fiber sound-absorbing cotton and stainless steel hollow end cap, which can effectively reduce the noise generated when the cylinder exhausts and improve the working environment. Attached Figure Description
[0018] Figure 1 A schematic diagram of the aluminum foil rejection device for a rigid cigarette box packaging machine provided in this embodiment of the utility model;
[0019] Figure 2 Pneumatic schematic diagram of the aluminum foil rejection device for a rigid cigarette box packaging machine provided in this embodiment of the utility model;
[0020] Figure 3 A schematic diagram of the exhaust silencer in the aluminum foil rejection device of the rigid cigarette box packaging machine provided in this embodiment of the utility model;
[0021] Figure 4 Another perspective structural schematic diagram of the exhaust silencer in the aluminum foil rejection device of the rigid cigarette box packaging machine provided in this embodiment of the utility model;
[0022] Figure 5 A cross-sectional view of the exhaust silencer in the aluminum foil rejection device of the hard cigarette box packaging machine provided in this embodiment of the utility model.
[0023] In the attached image:
[0024] 1. Bracket; 2. Cylinder seat; 3. Cylinder; 4. Solenoid valve; 5. Exhaust muffler; 501. Housing; 502. Hollowed-out end cap; 503. Connection port; 504. Sound-absorbing cotton; 6. Air source. Detailed Implementation
[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The aluminum foil rejection device for the rigid cigarette box packaging machine provided in this embodiment, such as Figures 1 to 5 As shown, it includes: an aluminum foil rejection mechanism, which includes a bracket 1, a cylinder seat 2, a cylinder 3, and a solenoid valve 4. The bracket 1 is fixedly installed on the aluminum foil rejection part of the hard cigarette box packaging machine. The cylinder seat 2 is fixedly installed on the bracket 1. The cylinder 3 and the solenoid valve 4 are both fixedly installed on the cylinder seat 2. The piston rod of the cylinder 3 can push off the aluminum foil to be rejected. The solenoid valve 4 is installed on the air pipe between the cylinder 3 and the air source 6.
[0030] In order to provide compressed air to cylinder 3, the front and rear air chambers of cylinder 3 are connected to air source 6 respectively. In order to reduce the working noise of cylinder 3, the rear air chamber of cylinder 3 is connected to an exhaust muffler 5, and the front air chamber of cylinder 3 is connected to an exhaust muffler 5.
[0031] Specifically, when the solenoid valve 4 is de-energized, the front chamber of the cylinder 3 is connected to the air source 6, and the rear chamber is connected to the exhaust muffler 5, and the piston rod of the cylinder 3 remains in the retracted state; when energized, the solenoid valve 4 reverses, the rear chamber of the cylinder 3 is connected to the air source 6, and the front chamber is connected to the exhaust muffler 5, and the piston rod quickly extends to push off the aluminum foil to be removed.
[0032] Among them, air source 6 is an air compressor, model GA-7.5, with a rated power of 7.5kW and a discharge capacity of 1.2m³. 3 With a discharge rate of 0.000 m / min and an exhaust pressure of 0.8 MPa, it can provide stable compressed air for cylinder 3.
[0033] In order to fix the exhaust muffler 5 and ensure that the exhaust muffler 5 works stably, the exhaust muffler 5 is fixedly installed on the bracket 1 or the cylinder seat 2.
[0034] Specifically, in this embodiment, the exhaust muffler 5 includes a housing 501, sound-absorbing cotton 504, and a perforated end cap 502. The housing 501 is a cylindrical structure with a connection port 503 at one end. The connection port 503 is used to connect to the air chamber of the cylinder 3. The sound-absorbing cotton 504 is filled inside the housing 501. The perforated end cap 502 is threaded onto the end of the housing 501 away from the connection port 503 to prevent the sound-absorbing cotton 504 from being blown out and to filter impurities in the exhaust gas.
[0035] Specifically, the outer shell 501 is made of stainless steel, which has good corrosion resistance and strength; the sound-absorbing cotton 52 is made of glass fiber cotton, which can effectively reduce exhaust noise; and the perforated end cap 502 is made of stainless steel with a hole size of 0.1-0.5mm, which can effectively filter impurities in the exhaust gas.
[0036] Specifically, in this embodiment, the solenoid valve 4 is a three-position five-way center-sealed solenoid valve, model 4V310-10. This solenoid valve has good switching performance and sealing performance, and can accurately control the action of the cylinder 3.
[0037] Specifically, in this embodiment, the bracket 1 is provided with multiple mounting holes. The bracket 1 is fixed to the aluminum foil removal part of the hard cigarette box packaging machine by bolts passing through the mounting holes. The mounting holes are oblong holes, which can adjust the installation position of the bracket 1 within a certain range.
[0038] Specifically, in this embodiment, a rubber cap is installed at the end of the piston rod of the cylinder 3. The rubber cap can increase the contact area with the aluminum foil to be removed, thus avoiding scratching the aluminum foil and the cigarette box.
[0039] Specifically, in this embodiment, a pressure regulating valve is installed on the air pipe between the air source 6 and the solenoid valve 4. The pressure regulating valve is used to adjust the air pressure of the air source 6 to meet the working requirements of the cylinder 3.
[0040] Specifically, in this embodiment, a controller is also included. The controller is electrically connected to the solenoid valve 4 and the air source 6, and is used to control the on / off state of the solenoid valve 4, thereby realizing automatic control of the cylinder 3's movement. The controller adopts a Siemens S7-1200 series PLC, specifically model CPU1214CDC / DC / DC. The controller, along with the solenoid valve 4 and the air source 6, controls the on / off state of the solenoid valve 4 and the air source 6, thereby realizing automatic control of the cylinder 3's movement. This model of PLC has a large number of I / O points, high processing speed, and stable performance, and can well meet the control requirements of the aluminum foil rejection device of the hard cigarette box packaging machine.
[0041] In summary, the workflow and technical effects of the aluminum foil rejection device for rigid cigarette box packaging machines provided in this embodiment are as follows:
[0042] Workflow
[0043] 1. System Preparation
[0044] 1.1 Hardware Installation: Fix bracket 1 to the aluminum foil rejection area of the hard cigarette box packaging machine using bolts through the oblong mounting holes. The mounting position can be adjusted within a certain range using the oblong holes. Fix cylinder seat 2 onto bracket 1, and then install cylinder 3 and solenoid valve 4 onto cylinder seat 2. At the same time, fix exhaust muffler 5 onto bracket 1 or cylinder seat 2.
[0045] 1.2 Air Circuit Connection: Connect the front and rear air chambers of cylinder 3 to the air compressor (model GA-7.5) of air source 6. Install a pressure regulating valve 7 on the air pipe between air source 6 and solenoid valve 4 to adjust the air pressure to meet the working requirements of cylinder 3. Connect the front and rear air chambers of cylinder 3 to the exhaust muffler 5.
[0046] 1.3 Electrical Connection: Connect the Siemens S7-1200 series PLC controller, model CPU1214CDC / DC / DC, to the solenoid valve 4 and the air source 6.
[0047] 2. Normal standby state
[0048] The controller controls the solenoid valve 4 to be de-energized. At this time, the front chamber of cylinder 3 is connected to the air source 6, and the rear chamber is connected to the exhaust muffler 5. The piston rod of cylinder 3 remains in the retracted state, waiting for the rejection command.
[0049] 3. Aluminum foil rejection process
[0050] 3.1 When it is necessary to remove aluminum foil, the controller issues a command to energize solenoid valve 4 and switch directions.
[0051] 3.2 The rear chamber of cylinder 3 is connected to air source 6, and the front chamber is connected to exhaust muffler 5. The piston rod extends quickly and uses the rubber pusher at the end of the piston rod to push off the aluminum foil to be removed.
[0052] 4. Restore standby mode
[0053] After the aluminum foil is removed, the controller de-energizes the solenoid valve 4, and the cylinder 3 returns to the state where the front air chamber is connected to the air source 6 and the rear air chamber is connected to the exhaust muffler 5. The piston rod retracts, waiting for the next removal command.
[0054] Technical effect
[0055] 1. Effectively removes aluminum foil.
[0056] The rapid extension of the piston rod of cylinder 3 accurately removes the aluminum foil to be discarded, ensuring the normal operation of the hard cigarette box packaging machine and improving packaging quality.
[0057] The rubber cap installed at the end of the piston rod increases the contact area with the aluminum foil, preventing scratches on the aluminum foil and cigarette box during the rejection process and reducing the defect rate.
[0058] 2. Reduce noise
[0059] Exhaust mufflers 5 are connected to the front and rear air chambers of cylinder 3, respectively. The exhaust mufflers 5 adopt a structure of stainless steel shell, glass fiber sound-absorbing cotton and stainless steel hollow end cap, which can effectively reduce the noise generated when cylinder 3 exhausts and improve the working environment.
[0060] 3. Stable gas supply
[0061] An air compressor of model GA-7.5 is used as the air source 6, with a rated power of 7.5kW and a discharge volume of 1.2m³. 3 With a discharge rate of 0.8 MPa and an exhaust pressure of 0.8 MPa, the system can provide stable compressed air to cylinder 3, ensuring the stable operation of the rejection device.
[0062] The pressure regulating valve 7 installed on the air pipe between the air source 6 and the solenoid valve 4 can adjust the air pressure according to actual needs, further improving the stability and reliability of the system.
[0063] 4. Precise control
[0064] The three-position five-way center-sealed solenoid valve, model 4V310-10, is adopted. It has good switching performance and sealing performance, and can accurately control the action of cylinder 3 to ensure the accuracy and timeliness of the rejection action.
[0065] The controller uses a Siemens S7-1200 series PLC, model CPU1214CDC / DC / DC, which has a large number of I / O points, high processing speed and stable performance. It can accurately control the energization and de-energization of solenoid valve 4, thereby realizing automatic control of cylinder 3, improving production efficiency and automation.
[0066] 5. Flexible installation
[0067] The mounting holes on bracket 1 are oblong, which allows for adjustment of the mounting position of bracket 1 within a certain range. This facilitates installation and debugging on different hard cigarette box packaging machines, improving the versatility and adaptability of the device.
[0068] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An aluminum foil rejection device for a rigid cigarette box packaging machine, characterized in that, include: A foil rejection mechanism for a hard cigarette box packaging machine includes a bracket (1), a cylinder seat (2), a cylinder (3), and a solenoid valve (4). The bracket (1) is fixedly installed at the foil rejection part of the hard cigarette box packaging machine. The cylinder seat (2) is fixedly installed on the bracket (1). The cylinder (3) and the solenoid valve (4) are both fixedly installed on the cylinder seat (2). The piston rod of the cylinder (3) can push off the foil to be rejected. The solenoid valve (4) is installed on the air pipe between the cylinder (3) and the air source (6). The front and rear air chambers of the cylinder (3) are respectively connected to the air source (6), and the rear air chamber of the cylinder (3) is connected to an exhaust muffler (5), and the front air chamber of the cylinder (3) is connected to an exhaust muffler (5). When the solenoid valve (4) is de-energized, the front chamber of the cylinder (3) is connected to the air source (6), and the rear chamber is connected to the exhaust muffler (5). The piston rod of the cylinder (3) remains in the retracted state. When the solenoid valve (4) is energized, the solenoid valve (4) reverses, the rear chamber of the cylinder (3) is connected to the air source (6), and the front chamber is connected to the exhaust muffler (5). The piston rod quickly extends to push off the aluminum foil to be removed. The exhaust muffler (5) includes a housing (501), sound-absorbing cotton (504), and a hollow end cap (502). The housing (501) is a cylindrical structure with a connection port (503) at one end. The connection port (503) is used to connect to the air chamber of the cylinder (3). The sound-absorbing cotton (504) is filled inside the housing (501). The hollow end cap (502) is threaded onto the end of the housing (501) away from the connection port (503) to prevent the sound-absorbing cotton (504) from being blown out and to filter impurities in the exhaust gas.
2. The aluminum foil rejection device for a rigid cigarette box packaging machine according to claim 1, characterized in that, The exhaust mufflers (5) are all fixedly installed on the bracket (1) or the cylinder seat (2).
3. The aluminum foil rejection device for a rigid cigarette box packaging machine according to claim 1, characterized in that, The outer shell (501) is a stainless steel shell, the sound-absorbing cotton (504) is glass fiber cotton, and the hollow end cap (502) is a stainless steel hollow end cap with a hole size of 0.1-0.5mm.
4. The aluminum foil rejection device for a rigid cigarette box packaging machine according to claim 1, characterized in that, The solenoid valve (4) is a three-position five-way center-sealed solenoid valve.
5. The aluminum foil rejection device for a rigid cigarette box packaging machine according to claim 1, characterized in that, The bracket (1) is provided with multiple mounting holes. The bracket (1) is fixed to the aluminum foil removal part of the hard cigarette box packaging machine by passing bolts through the mounting holes.
6. The aluminum foil rejection device for a rigid cigarette box packaging machine according to claim 1, characterized in that, The piston rod end of the cylinder (3) is fitted with a rubber cap.
7. The aluminum foil rejection device for a rigid cigarette box packaging machine according to any one of claims 1-6, characterized in that, A pressure regulating valve is installed on the air pipe between the air source (6) and the solenoid valve (4).