A punching mechanism driven by an electromagnetic valve and controlled in coordination with color marks.

Abstract

This invention discloses a punching mechanism driven by an electromagnetic valve and co-controlled with color mark recognition. This invention relates to the field of packaging bag technology and proposes the following solution, including a punching mechanism and a color mark recognition mechanism. The punching mechanism includes a first valve body and a second valve body, both of which are internally equipped with an electromagnetic valve, a punching head, a punching die, and a spring. The punching head and spring are perpendicular to the material's movement direction, and the relative distance between the two valve bodies is adjusted to accommodate materials of different widths. The color mark recognition mechanism identifies color marks on the material and outputs a trigger signal to the punching mechanism after a set delay time. In this invention, the electromagnetic valve has a fast response speed, allowing the punching head to quickly acquire power and continuously complete the punching action during rapid bag conveying, improving production efficiency. Furthermore, when the bag conveying speed changes, the color mark sensor adjusts the electromagnetic valve's operating frequency in real time, ensuring that each punch precisely corresponds to a preset position and avoiding positional deviation.

Description

Technical Field

[0001] This invention relates to the field of packaging machine bag technology, specifically to a punching mechanism driven by an electromagnetic valve and controlled in conjunction with color mark. Background Technology

[0002] Currently, in the packaging bag production process, the bottom punching mechanism of the packaging machine operates intermittently. When the packaging bag film is conveyed to the punching position, the machine must pause operation until the punch completes its punching action before restarting. This results in inertial impact. During shutdown, the residual kinetic energy of the rotor can cause the material conveying mechanism to overshoot. Upon restarting, the sudden acceleration can easily cause material lag and misalignment, leading to punching position deviation and increased scrap rate. This not only increases packaging costs but also affects production efficiency and finished product quality. Therefore, there is an urgent need for a punching mechanism that can operate continuously at high speeds. Summary of the Invention

[0003] In view of the deficiencies mentioned above, a technical solution is provided for a punching mechanism that uses a solenoid valve to drive continuous bottom hole punching and color mark coordinated control.

[0004] This invention discloses a punching mechanism driven by an electromagnetic valve and co-controlled with color mark, comprising a punching mechanism and a color mark recognition mechanism. The punching mechanism includes a first valve body and a second valve body, each housing an electromagnetic valve, a punching head, a punching die, and a spring. The punching head and spring are perpendicular to the material's movement direction, and the relative distance between the first and second valve bodies is adjusted to accommodate materials of different widths. The color mark recognition mechanism identifies color marks on the material during its movement and outputs a signal based on the color mark position detection result. The material's displacement is calculated, compared with a set position, and after a set delay time, a trigger signal is output to the punching mechanism.

[0005] Preferably, in the above-mentioned solenoid valve-driven continuous bottom hole punching and color mark coordinated control punching mechanism, the adjustment mechanism includes: a support base, a support beam, a base knob and fixing screws, wherein a color mark recognition mechanism is installed on the support base; a punching mechanism is installed on the support beam; and the support base and the support beam are both fixed by the base, the knob and the fixing screws.

[0006] Preferably, in the above-mentioned punching mechanism with continuous bottom hole punching and color mark coordinated control driven by an electromagnetic valve, mold fixing plates are installed on both sides of the support beam. Two sets of guide rail slider mechanisms are provided on both sides of the support beam and fixed in the groove between the support beam and the mold fixing plate. A motor base is provided on one side of the mold fixing plate, and a servo motor is fixed on the motor base. The output end of the servo motor is connected to the lead screw. The second valve body and the first valve body are slidably connected on the mold fixing plate. Both the second valve body and the first valve body have threaded holes through which the lead screw can pass. The lead screw adjusts the relative distance between the first valve body and the second valve body by rotation. The lead screw is a bidirectional helical threaded lead screw.

[0007] Preferably, in the above-mentioned punching mechanism with continuous bottom punching hole and color mark coordinated control driven by an electromagnetic valve, the color mark recognition mechanism includes a sensor bracket, a color mark sensor, an adjusting shaft, and a fixed base. The sensor bracket is mounted on the fixed base, and the fixed base is mounted on the adjusting shaft. A through hole is provided on one side of the fixed base for the adjusting shaft to pass through. The color mark sensor is mounted on the sensor bracket. Depending on the bag width and the position of the color mark on the material, a matching fastening bolt is provided in the limiting threaded hole on the fixed base to fix the position of the adjusting sensor on the adjusting shaft.

[0008] Preferably, in the above-mentioned punching mechanism with continuous bottom hole punching driven by an electromagnetic valve and color mark coordinated control, a dust suction hood is installed on one side of the bottom of the mold fixing plate. The dust suction hood for waste discharge includes a connecting plate and a conduit. The connecting plate is located below the first valve body and the second valve body. The conduit allows fluid to pass through. After the punching action is completed, the waste falls into the dust suction hood and is sucked out through the conduit.

[0009] Preferably, in the above-mentioned solenoid valve-driven continuous bottom punching and color mark coordinated control punching mechanism, both the first valve body and the second valve body include a driving device, which is connected to the punching head. After receiving an energizing signal, the solenoid valve generates a magnetic field, and the air path switches to the rodless chamber inside the valve body. At this time, the compressed air drives the punching head to move, causing the punching head to move downward rapidly; and with the help of a spring, the punching head is pulled back to the retracted position through elastic tension.

[0010] Preferably, in the above-mentioned electromagnetic valve-driven continuous bottom hole punching and color mark coordinated control punching mechanism, the punching head and the punching die are independent of each other, and the material is between the two; the punching head cooperates with the spring and is perpendicular to the surface of the material, and presses the material against the punching die when performing the punching action.

[0011] Preferably, in the above-mentioned punching mechanism with continuous bottom punching driven by an electromagnetic valve and coordinated control of color mark, the electromagnetic valve starts and stops the punching action, and the punching process is synchronized with the detection signal of the color mark sensor.

[0012] Preferably, in the above-mentioned solenoid valve driven continuous bottom punching and color mark coordinated control punching mechanism, both the first valve body and the second valve body are provided with air pressure interfaces; the compressed air generated by the solenoid valve air circuit switching drives the punching head.

[0013] Preferably, in the above-mentioned punching mechanism with continuous bottom hole punching and color mark coordinated control driven by an electromagnetic valve, the color mark recognition mechanism includes a transmitter and a receiver. The transmitter is used to emit an interference signal, and the receiver is used to receive the interference signal. The emitted light beam passes through the color mark area of ​​the material, and the receiver receives the reflected or transmitted light signal on the same axis.

[0014] As can be seen from the above technical solution, the present invention provides a punching mechanism driven by an electromagnetic valve for continuous bottom punching and color mark coordinated control. Compared with the prior art, the present invention has the following beneficial effects:

[0015] This is a punching mechanism driven by a solenoid valve and controlled in conjunction with a color mark. The color mark sensor on the sensor bracket detects the color mark and the signal processing module calculates the position where the bottom hole needs to be punched. When the position is determined, an energizing signal is sent to the solenoid valve. Upon receiving the energizing signal, the solenoid valve generates a magnetic field, and the air path switches to the rodless chamber in the valve body. At this time, the compressed air drives the punching head to move, causing the punching head to move downward quickly. Due to the short response time of the solenoid valve, the punching head can quickly obtain downward force. The packaging bag is continuously punched under rapid conveying, which meets the requirement of continuous punching under high-speed operation and improves production efficiency.

[0016] This is a punching mechanism that uses a solenoid valve to drive continuous bottom punching and coordinates with color mark control. The color mark sensor on the sensor bracket continuously detects the color mark on the packaging bag. When the color mark is detected and the signal processing module calculates that the position for bottom punching has been reached, it sends an energizing signal to the solenoid valve. When the packaging bag conveying speed changes, the color mark sensor on the sensor bracket adjusts the operating frequency of the solenoid valve so that each punching by the punching head corresponds to the preset position of the packaging bag, avoiding positional deviation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the overall structure of a punching mechanism driven by an electromagnetic valve and controlled in coordination with color marks, according to the present invention.

[0019] Figure 2 This is a schematic diagram of the sensor bracket mounting structure of a punching mechanism driven by an electromagnetic valve and controlled in coordination with color mark in this invention.

[0020] Figure 3 This is a schematic diagram of the support and base mounting structure of a punching mechanism driven by an electromagnetic valve and controlled by color mark coordination in this invention.

[0021] Figure 4 This is a schematic diagram of the first valve body structure of a punching mechanism driven by an electromagnetic valve and controlled in coordination with color marks, according to the present invention.

[0022] Figure 5 This is a partial cross-sectional view of the first valve body of a punching mechanism driven by an electromagnetic valve and controlled by color mark coordination in this invention.

[0023] Appendix Figure 1 -Appendix Figure 5 The correspondence between the components is as follows:

[0024] 1. Support base; 101. Base; 102. Knob; 103. Connecting shaft; 104. Sensor bracket; 105. Fastening bolt; 106. Fixing seat; 107. Fixing screw; 2. Support beam; 201. Mold fixing plate; 202. Dust hood; 203. First valve body; 204. Second valve body; 205. Servo motor; 206. Lead screw; 207. Air pressure interface; 208. Punching die; 209. Mounting bolt; 210. Solenoid valve; 211. Spring; 212. Punching head. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0026] Example 1: Please refer to Figures 1-5A continuous punching mechanism driven by an electromagnetic valve and controlled in coordination with color marks includes a punching mechanism and a color mark recognition mechanism. The punching mechanism includes a first valve body 203 and a second valve body 204, both of which are internally equipped with an electromagnetic valve 210, a punching head 212, a punching die 208, and a spring 211. The punching head 212 and spring 211 are perpendicular to the material's movement direction and can be adapted to materials of different widths by adjusting the relative distance between the first valve body 203 and the second valve body 204. The color mark recognition mechanism identifies color marks on the material during its movement and outputs a signal based on the color mark position detection result. The mechanism calculates the material's displacement, compares it with a set position, sets a delay time, and then outputs a trigger signal to the punching mechanism.

[0027] To further optimize the above technical solution, an adjustment mechanism is also included; the adjustment mechanism includes: a support base 1, a support beam 2, a base 101, a knob 102, and a fixing screw 107. A color mark recognition mechanism is installed on the support base 1; a punching mechanism is installed on the support beam 2; the support base 1 and the support beam 2 are both fixed by the base 101 in conjunction with the knob 102 and the fixing screw 107.

[0028] Specifically, mold fixing plates 201 are installed on both sides of the support beam 2. Two sets of guide rail slider mechanisms are provided on both sides of the support beam 2 and fixed in the groove between the support beam and the mold fixing plate 201. A motor base is provided on one side of the mold fixing plate 201, and a servo motor 205 is fixed on the motor base. The output end of the servo motor 205 is connected to the lead screw 206. The second valve body 204 and the first valve body 203 are slidably connected on the mold fixing plate 201. Both the second valve body 204 and the first valve body 203 have threaded holes through which the lead screw 206 can pass. The lead screw 206 adjusts the relative distance between the first valve body 203 and the second valve body 204 by rotation. It should be noted that the lead screw 206 is a bidirectional threaded lead screw, that is, two sections of threads with opposite directions (one left-handed and one right-handed) are machined on one lead screw. When the lead screw rotates, it can drive the first valve body 203 and the second valve body 204 to move synchronously in opposite directions.

[0029] To further optimize the above technical solution, the color mark recognition mechanism includes a sensor bracket 104, a color mark sensor, an adjustment shaft 103, and a fixing seat 106. The sensor bracket 104 is mounted on the fixing seat 106, and the fixing seat 106 is mounted on the adjustment shaft 103. A through hole is provided on one side of the fixing seat 106 for the adjustment shaft 103 to pass through. The color mark sensor is mounted on the sensor bracket 104. Depending on the bag width and the position of the color mark on the material, a matching fastening bolt 105 is provided in the limiting threaded hole on the fixing seat 106 to fix the position of the adjustment sensor on the adjustment shaft.

[0030] The solenoid valve 210 and the punch head 212 are integrated and installed in the valve body. When the solenoid valve 210 is energized, it generates a magnetic field that attracts the valve core to move, thereby changing the air path. The air path switches to the rodless chamber in the valve body, which is connected to the gas passage of the punch head 212. Driven by the compressed gas, the punch head 212 moves rapidly downward. When the solenoid valve 210 is de-energized, the punch head 212 is in its initial position and has not contacted the packaging bag. The color mark recognition mechanism installed on the sensor bracket 104 continuously detects the color mark on the packaging bag. When the color mark is detected and calculated by the signal processing module, it is determined that the bottom hole needs to be punched. When in position, an energizing signal is sent to the solenoid valve 210. Upon receiving the energizing signal, the solenoid valve 210 generates a magnetic field, and the air path switches to the rodless chamber inside the valve body. At this time, the compressed air drives the punching head 212 to move, causing the punching head 212 to move downward rapidly. Due to the short response time of the solenoid valve 210, the punching head 212 can quickly obtain downward force, and the packaging bag continuously completes the bottom hole punching action under rapid conveying. When the punching head 212 completes the punching action, the solenoid valve 210 is de-energized, the air path switches to the rod chamber, and the punching head 212 and valve core are reset under the action of the spring 211, realizing a rapid cycle of a single punching action.

[0031] To further optimize the above technical solution, a dust suction hood 202 is installed on one side of the bottom of the mold fixing plate 201. The dust suction hood 202 for waste discharge includes a connecting plate and a conduit. The connecting plate is located below the first valve body 203 and the second valve body 204. The conduit allows fluid to pass through. After the punching action is completed, the waste falls into the dust suction hood 202 and is sucked out through the conduit.

[0032] To further optimize the above technical solution, both the first valve body 203 and the second valve body 204 include a driving device, which is connected to the punch head 212. After receiving the energizing signal, the solenoid valve 210 generates a magnetic field, and the air path is switched to the rodless chamber in the valve body. At this time, the compressed air drives the punch head to move, causing the punch head 212 to move downward quickly. In conjunction with the spring 211, the spring pulls the punch head 212 back to the retracted position through elastic tension.

[0033] To further optimize the above technical solution, the punching head 212 and the punching die 208 are independent of each other, and the material is between the two; the punching head 212 cooperates with the spring 211 and is perpendicular to the surface of the material, and presses the material against the punching die 208 when performing the punching action.

[0034] To further optimize the above technical solution, the punching die 208 is fixedly installed on one side of the die fixing plate by mounting bolts 209.

[0035] To further optimize the above technical solution, the solenoid valve 210 synchronizes the start and stop of the punching action with the detection signal of the color mark sensor during the punching process.

[0036] To further optimize the above technical solution, both the first valve body 203 and the second valve body 204 are provided with air pressure interfaces 207; the punching head is driven by the air pressure connected to the air pressure interface 207.

[0037] To further optimize the above technical solution, the color mark recognition mechanism includes a transmitter and a receiver. The transmitter is used to emit interference signals, and the receiver is used to receive the interference signals. The emitted light beam passes through the color mark area of ​​the material, and the receiver receives reflected or transmitted light signals on the same axis.

[0038] Example 2: Please refer to Figures 1-5 The relative distance between the first valve body 203 and the second valve body 204 of this device can be adjusted to match materials of different widths;

[0039] In the color mark recognition mechanism, the material of the adjusting shaft 103 is changed to a lighter and stronger alloy material to reduce the overall weight of the mechanism. After the sensor bracket 104 is installed on the fixed seat 106, a layer of shock-absorbing pad is added between the fixed seat 106 and the adjusting shaft 103 to reduce the impact of vibration during equipment operation on the detection accuracy of the color mark recognition mechanism on the sensor bracket 104.

[0040] In the punching mechanism, the solenoid valve 210 is replaced with a type that has a faster response speed, further improving the punching response speed. The cutting edge material of the punching head 212 is replaced with a material with higher hardness and better wear resistance, extending the service life of the punching head 212.

[0041] The integrated installation method of the solenoid valve 210 and the punch head 212 drive cylinder has been further optimized. A tighter connection structure is adopted to reduce the length of the air circuit connection and further minimize the air circuit delay. When the solenoid valve 210 is energized, the magnetic field generated is stronger and can attract the valve core to move faster, so that the punch head 212 can move downward faster to complete the punching action.

[0042] When the conveying speed of the packaging bag changes, the sensor bracket 104 adjusts the operating frequency of the solenoid valve 210 through a more advanced algorithm, so that the punching head 212 can punch more accurately each time.

[0043] Implementation Results: The color mark sensor detects the color mark and the signal processing module calculates the position where the bottom hole needs to be punched. When this position is reached, an energizing signal is sent to the solenoid valve 210. Upon receiving the energizing signal, the solenoid valve 210 generates a magnetic field, and the air path switches to the rodless chamber in the valve body. At this time, the compressed air drives the punching head 212 to move downward quickly. Due to the short response time of the solenoid valve 210, the punching head 212 can quickly obtain downward force. The packaging bag continuously completes the bottom hole punching action under rapid conveying, which meets the requirement of continuous punching action under high-speed operation and improves production efficiency.

[0044] The color mark sensor continuously detects the color mark on the packaging bag. When the color mark is detected and the signal processing module calculates and determines that the position for punching the bottom hole has been reached, it sends an energizing signal to the solenoid valve 210. When the packaging bag conveying speed changes, the color mark sensor adjusts the operating frequency of the solenoid valve 210 so that each punching by the punching head 212 corresponds to the preset position of the packaging bag, avoiding position deviation.

[0045] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A punch mechanism driven by solenoid valve for continuous bottom hole and color mark coordinated control, characterized in that, The application relates to a color mark recognition and punching device, which comprises a punching mechanism and a color mark recognition mechanism; wherein the punching mechanism comprises a first valve body (203) and a second valve body (204), the interiors of the first valve body (203) and the second valve body (204) are provided with electromagnetic valves (210), punching heads (212), punching concave dies (208) and springs (211); the punching heads (212) and the springs (211) are perpendicular to the moving direction of materials, and the relative distance between the first valve body (203) and the second valve body (204) is adjusted to adapt to materials with different widths; the color mark recognition mechanism recognizes the color mark on the materials during the movement of the materials, and outputs corresponding signals with the color mark position detection results; the displacement of the materials is calculated, compared with the set position, and a trigger signal is output to the punching mechanism after a delay time; the adjusting mechanism comprises a supporting seat (1), a supporting beam (2), a base (101), a knob (102) and a fixing screw (107), the color mark recognition mechanism is installed on the supporting seat (1), the punching mechanism is installed on the supporting beam (2), the supporting seat (1) and the supporting beam (2) are fixed through the base (101), the knob (102) and the fixing screw (107), die fixing plates (201) are installed on the two sides of the supporting beam (2), two groups of guide rail sliding block mechanisms are arranged on the two sides of the supporting beam (2) and fixed in the grooves between the supporting beam and the die fixing plates (201), a motor base is arranged on one side of the die fixing plate (201), a servo motor (205) is fixed in the motor base, the output end of the servo motor (205) is connected with a lead screw (206), the second valve body (204) and the first valve body (203) are slidably connected on the die fixing plate (201), the second valve body (204) and the first valve body (203) are provided with threaded holes through which the lead screw (206) penetrates, and the relative distance between the first valve body (203) and the second valve body (204) is adjusted by rotating the lead screw (206); wherein the lead screw (206) is a bidirectional rotation thread lead screw; the color mark recognition mechanism comprises a sensor support (104), a color mark sensor, an adjusting shaft (103) and a fixing base (106), the sensor support (104) is installed on the fixing base (106), and the fixing base (106) is installed on the adjusting shaft (103); a through hole through which the adjusting shaft (103) penetrates is formed in one side of the fixing base (106), the color mark sensor is installed on the sensor support (104), fastening bolts (105) matched with the limiting threaded holes formed in the fixing base (106) are arranged in the limiting threaded holes to fix the position of the adjusting sensor on the adjusting shaft according to different bag widths and different color mark positions on the materials.The bottom side of the mold fixing plate (201) is provided with a dust cover (202), wherein the dust cover (202) for discharging waste includes a connecting plate below a first valve body (203) and a second valve body (204) and a conduit through which fluid passes; after a punching action is performed, the waste falls into the dust cover (202) and is sucked out through the conduit; the first valve body (203) and the second valve body (204) each include a driving device connected to the punching head (212); after the electromagnetic valve (210) receives a power-on signal, a magnetic field is generated, an air path is switched to a rodless cavity in the valve body, at this time, compressed air drives the punching head to act, so that the punching head (212) moves downward quickly; and the spring (211) is cooperated to pull the punching head (212) back to a retracted position through elastic tension.

2. The punch mechanism driven by solenoid valve for continuous bottom hole and color mark coordinated control according to claim 1, characterized in that, The punching head (212) and the punching concave die (208) are independent of each other, and the material is between the two; the punching head (212) is matched with the spring (211), is perpendicular to the surface of the material, and presses the material to the punching concave die (208) when performing the punching action.

3. The punch mechanism driven by solenoid valve for continuous bottom hole and color mark coordinated control according to claim 1, characterized in that, The electromagnetic valve (210) starts and stops the punching action, and the stamping process is synchronous with the detection signal of the color mark sensor.

4. The punch mechanism driven by solenoid valve for continuous bottom hole and color mark coordinated control according to claim 1, characterized in that, The first valve body (203) and the second valve body (204) are provided with air pressure interfaces (207); compressed air generated by the electromagnetic valve gas path switching drives the punching head (212).

5. The punch mechanism driven by solenoid valve for continuous bottom hole and color code coordinated control according to claim 1, characterized in that, The color mark identification mechanism comprises a transmitter and a receiver, the transmitter is used for transmitting an interference signal, and the receiver is used for receiving the interference signal; the transmitted light beam passes through the color mark area of the material, and the receiver receives the reflected or transmitted light signal on the same axis.

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