Multifunctional bag making machine with modular design

Abstract

The present invention discloses a multifunctional bag making machine with modular design, including a film feeding mechanism, a zipper feeding mechanism, a film zipper welding mechanism, a welding handle mechanism, a servo punching mechanism, an upper and lower ironing mechanism, a cutter mechanism, a rotary arm receiving mechanism and a bag sorting and conveying mechanism. A film folding mechanism, a rear material pulling component and a folding bottom mechanism are provided between the film feeding mechanism and the film zipper welding mechanism. A zipper pulling mechanism is provided between the zipper feeding mechanism and the film zipper welding mechanism. A front material pulling component is provided at the output end of the film zipper welding mechanism. A rear material pulling component is provided at the feeding end of the welding handle mechanism. A middle material pulling component is provided between the welding handle mechanism and the punching mechanism. A front material pulling component is provided between the upper and lower ironing mechanism and the cutter mechanism. The present invention is used for the production of diaper bags, handbags, zipper bags, etc., to ensure the quality of bag making and realize efficient and stable operation of the equipment, and to realize simple bag sorting and delivery under the premise of high-speed bag making.

Description

Technical Field

[0001] The invention relates to equipment for producing plastic film bags, in particular to a multifunctional bag making machine. Background Art

[0002] Plastic film bags are widely used in the market, and there are various styles of plastic bags, such as diaper bags, handbags, zipper bags, etc. Some of these bags have zippers, some have handles, some need to be punched, and some have bottom inserts and flanges, which are not the same. How to produce bags with all the above functions with a simple structure is a technical problem that manufacturers need to solve at present. In addition, the bag making equipment in the prior art has the following shortcomings: 1. When the bag has a zipper, the plastic film must be welded with the zipper during the bag making process. The current welding technology of plastic film and zipper generally uses an electric hot knife to set a temperature for production. When the film pulling speed is increased, the welding temperature of the film and the zipper will be insufficient, and the welding will not be firm; and when the film pulling speed is slowed down, it will cause excessive welding, which is easy to produce waste. 2. When the bag needs to be punched, the punching mechanism of the traditional bag making machine generally uses a punching cylinder to push the punch to punch. It is limited by the operating speed of the cylinder and the cylinder ventilation control solenoid valve, and cannot meet the high-speed punching requirements, that is, it has the disadvantages of slow punching speed and high operating noise. In addition, during the punching process, if the left and right positions of the film conveyor change, it will not be possible to punch accurately, and the quality of bag production cannot be well guaranteed. 3. The upper and lower ironing mechanisms of the current bag making machine are driven by cylinders for the upper and lower copper knives, which are slow, noisy, and have low ironing pressure, all of which affect the improvement of the production speed of the bag making machine. 4. Under the premise of high-speed bag making, it is difficult to achieve simple bag sorting and delivery. Summary of the invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multifunctional bag-making machine with a modular design for the production of diaper bags, handbags, zipper bags, etc., which ensures the quality of bag making and realizes efficient and stable operation of the equipment, while realizing simple bag sorting and delivery under the premise of high-speed bag making.

[0004] The present invention is implemented by the following technical solutions:

[0005] The multifunctional bag making machine with modular design is characterized in that it includes a film feeding mechanism, a zipper feeding mechanism, a film zipper welding mechanism, a welding handle mechanism, a servo punching mechanism, an upper and lower ironing mechanism, a cutter mechanism, a rotary arm material collecting mechanism and a bag sorting and conveying mechanism which are arranged in sequence; a film folding mechanism, a rear material pulling component and a folding bottom mechanism are arranged between the film feeding mechanism and the film zipper welding mechanism; a zipper pulling mechanism is arranged between the zipper feeding mechanism and the film zipper welding mechanism; a front material pulling component is arranged at the output end of the film zipper welding mechanism; a rear material pulling component is arranged at the feeding end of the welding handle mechanism; a film tension control mechanism is arranged between the front material pulling component and the rear material pulling component; a middle material pulling component is arranged between the welding handle mechanism and the servo punching mechanism; and a front material pulling component is arranged between the upper and lower ironing mechanism and the cutter mechanism.

[0006] An electrostatic dust collector is arranged near the middle material dragging component and the front material dragging component.

[0007] The multifunctional bag-making machine with modular design of the above technical solution can flexibly configure various functional modules according to customer needs, greatly shortening the equipment production cycle; in addition, each action mechanism generally adopts servo drive technology, so that the equipment can operate efficiently and stably. The working principle is: under the traction of the rear material pulling traction component, the plastic film comes down from the film feeding mechanism, the bag body is folded in half at the film folding mechanism, and then the bag mouth is folded or the bag bottom is inserted at the folding bottom mechanism, and it enters the film zipper welding mechanism and is welded with the zipper released by the zipper feeding mechanism; then, under the traction of the front, middle and rear material pulling traction components, the film bag is welded to the handle at the welding handle mechanism using ultrasonic welding technology, punched at the servo punching mechanism, the edge sealing of the bag is completed at the upper and lower ironing mechanism, the single cutting of the bag is completed at the cutting knife mechanism, and the bag is sorted and sent out at the rotary arm receiving mechanism and the bag sorting and conveying mechanism, with a simple structure. During the bag-making process of the bag-making machine, the electrostatic precipitator can eliminate static electricity, prevent the mutual electrostatic attraction of plastic film bags during the bag-making process, and avoid disrupting the bag-making process.

[0008] Preferably, the film zipper welding mechanism is provided with a first heat sealing assembly, a second heat sealing assembly, a cooling knife assembly and a traction rubber roller assembly in sequence along the film conveying path. The first heat sealing assembly includes two first heat sealing knives arranged symmetrically, the two first heat sealing knives move relatively close to and away from each other, and are pushed by their respective first heat sealing knife cylinders. The second heat sealing assembly includes two second heat sealing knives arranged symmetrically, the two second heat sealing knives move relatively close to and away from each other, and are pushed by their respective second heat sealing knife cylinders. A temperature detector is provided between the second heat sealing assembly and the cooling knife assembly, and the temperature detector is connected to the control center. During the welding operation, the control center adjusts the temperature of the heat sealing knife and the number of heat sealing knives used in real time according to the film traction speed. The cooling knife assembly includes two cooling knives arranged symmetrically, the two cooling knives move relatively close to and away from each other, and are pushed by their respective cooling knife cylinders. Circulating cooling water is passed through the two cooling knives.

[0009] After adopting the above technical solution, the film zipper welding mechanism can automatically adjust the temperature of the heat sealing knife and the number of heat sealing knives used according to the film pulling speed, thereby ensuring that the welding quality is always consistent during the high and low speed bag making process. In the initial startup process, the first heat sealing knife is clamped first, and the temperature detector detects the surface temperature of the film and the zipper after welding. If the temperature does not meet the process requirements, the control center notifies the second heat sealing knife to clamp and also put into work. At the same time, the control center adjusts the temperature of the first and second heat sealing knives in real time according to the temperature required by the process; if the film pulling speed suddenly decreases, but the heat sealing knife cannot be cooled immediately, the control center will notify the second heat sealing knife to separate to avoid over-welding to ensure the welding quality. In addition, there is circulating cooling water inside the cooling knife. The welded film is cooled and shaped by the cooling knife, and then rolled by the pulling rubber roller assembly, which can make the welding more beautiful.

[0010] Preferably, the servo punching mechanism comprises a puncher, which is composed of a punching head and a bottom die. The bottom die is arranged below the punching head, and the bottom die is provided with a punching hole which is vertically opposite to the punching head. The bottom die is fixedly installed on the deviation correction seat, and the punching head is fixedly installed at the bottom of the lifting beam. The lifting beam is movable up and down on the deviation correction seat, and the lifting beam is driven by a punching cam. The punching cam is installed at the output shaft end of the punching servo motor, and the punching servo motor is installed on the deviation correction seat. The deviation correction seat is slidably arranged on a fixedly installed punching bracket. The bottom die has a lateral opening groove, and the lateral opening groove limits the upper and lower positions of the film passing through the puncher during operation. An ultrasonic sensor is arranged on the feeding side of the puncher, and the ultrasonic sensor is installed on the deviation correction seat. The ultrasonic sensor senses the inner side of the film entering the puncher during operation. The output signal of the ultrasonic sensor controls the deviation correction motor. When the deviation correction motor is working, it drives the deviation correction seat to slide left and right on the punching bracket.

[0011] After adopting the above technical scheme, the servo punching mechanism uses a servo motor to drive punching, with fast punching speed and low operating noise; in addition, during the punching process, if there is a left-right position deviation in the film conveying, the ultrasonic sensor senses the side position of the film and sends a signal to control the operation of the correction motor. The correction motor drives the correction seat and the entire set of punchers installed on the correction seat to move left and right, automatically correct the deviation, and thus achieve precise punching.

[0012] Preferably, the upper and lower ironing mechanism comprises an upper copper knife and a lower copper knife which are electrically heated, and the upper copper knife and the lower copper knife are arranged to move up and down relative to each other. The upper copper knife is installed on an upper crossbeam, and the upper crossbeam is arranged to move up and down and is driven by the rotation of a first cam. The lower copper knife is installed on a lower crossbeam, and the lower crossbeam is arranged to move up and down and is driven by the rotation of a second cam. The first cam and the second cam are installed on the same camshaft, and the camshaft is driven by an upper and lower ironing servo motor. The two ends of the upper cross beam are connected to lateral slides, and the lateral slides are vertically slidably arranged on the inner side of the frame wall panel. The lower end of the lateral slide extends to the lower position of the lower cross beam and is connected to the upper rod end of the first connecting rod. The lower rod end of the first connecting rod is connected to the first ring, and the first ring is rotatably arranged on the outer circle of the first cam; the bottom of the lower cross beam is connected to the buffer cylinder, and the mounting seat of the buffer cylinder is vertically slidably arranged on the inner side of the frame wall panel. The mounting seat of the buffer cylinder is connected to the upper rod end of the second connecting rod, and the lower rod end of the second connecting rod is connected to the second ring, and the second ring is rotatably arranged on the outer circle of the second cam.

[0013] After adopting the above technical scheme, when the upper and lower ironing mechanisms are working, the movements of the upper copper knife and the lower copper knife are driven by the cam, with fast speed, low working noise, and high ironing pressure, which can better ensure the improvement of the production speed of the bag making machine.

[0014] Preferably, the rotary arm material collecting mechanism comprises a turntable and a plurality of collecting arms evenly arranged on the circumference of the turntable. The turntable and the collecting arms rotate counterclockwise under the drive of the turntable motor. The collecting arms are provided with suction holes on the arm surface along the rotation direction. When the collecting arms rotate counterclockwise, they pass through the finished bag supporting platform from below to above and absorb and take away the finished bags on the finished bag supporting platform and send them to the bag hanging needle group of the bag sorting and conveying mechanism. The above design can realize the simple bag sorting and delivery of the bag making machine under the premise of high-speed bag making. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention has the following drawings:

[0016] Figure 1 It is a structural schematic diagram of the present invention,

[0017] Figure 2 It is a structural diagram of the film zipper welding mechanism.

[0018] Figure 3 This is a schematic diagram of the structure of the servo punching mechanism.

[0019] Figure 4 for Figure 3 Back view of

[0020] Figure 5 for Figure 3 The side view of

[0021] Figure 6 It is a structural diagram of the upper and lower ironing mechanism.

[0022] Figure 7 for Figure 6 Frontal view of the . DETAILED DESCRIPTION

[0023] like Figure 1 As shown, the modular multifunctional bag making machine of the present invention comprises a film feeding mechanism 12, a zipper feeding mechanism 1, a film zipper welding mechanism 3, a welding handle mechanism 5, a servo punching mechanism 6, an upper and lower ironing mechanism 8, a cutting mechanism 10, a rotary arm receiving mechanism 19 and a bag sorting and conveying mechanism 20 which are arranged in sequence, a film folding mechanism 11, a rear material pulling component 13 and a folding bottom mechanism 14 are arranged between the film feeding mechanism 12 and the film zipper welding mechanism 3, and a zipper pulling component 13 is arranged between the zipper feeding mechanism 1 and the film zipper welding mechanism 3. Mechanism 2, a front material pulling traction component 15 is provided at the output end of the film zipper welding mechanism 3, a rear material pulling traction component 4 is provided at the feeding end of the welding handle mechanism 5, a film tension control mechanism 16 is provided between the front material pulling traction component 15 and the rear material pulling traction component 4, a middle material pulling traction component 7 is provided between the welding handle mechanism 5 and the servo punching mechanism 6, a front material pulling traction component 9 is provided between the upper and lower ironing mechanisms 8 and the cutting mechanism 10, an electrostatic precipitator 17 is provided near the middle material pulling traction component 7, and an electrostatic precipitator 18 is provided near the front material pulling traction component 9.

[0024] like Figure 2As shown, the film zipper welding mechanism 3 is provided with a first heat sealing assembly, a second heat sealing assembly, a cooling knife assembly and a traction rubber roller assembly 38 in sequence along the film A conveying path. The first heat sealing assembly includes two first heat sealing knives 31 symmetrically arranged on the left and right. The two first heat sealing knives 31 move toward and away from each other and are pushed by their respective first heat sealing knife cylinders 32. The second heat sealing assembly includes two second heat sealing knives 33 symmetrically arranged on the left and right. The two second heat sealing knives 33 move toward and away from each other and are pushed by their respective second heat sealing knife cylinders 34. The first and second heat sealing knives are provided with electric heating tubes inside, the cooling knife assembly includes two cooling knives 36 which are symmetrically arranged on the left and right, the two cooling knives 36 move towards and away from each other, and are pushed by respective cooling knife cylinders 37, circulating cooling water is passed through the two cooling knives 36, a temperature detector 35 is provided between the second heat sealing assembly and the cooling knife assembly, and the detection signal output of the temperature detector 35 is electrically connected to the control center 39; during the welding operation, the control center 39 adjusts the temperature of the heat sealing knife and the number of heat sealing knives used in real time according to the pulling speed of the film A.

[0025] like Figure 3-5As shown, the servo punching mechanism 6 includes a puncher, which consists of a punching head 63 and a bottom die 64. The bottom die 64 is arranged below the punching head 63. The bottom die 64 has a lateral opening groove 69. The lateral opening groove 69 limits the upper and lower positions of the film passing through the puncher during operation. The bottom die 64 is provided with a punching hole that is directly opposite to the punching head 63 up and down. The bottom die 64 is fixedly installed on the deviation correction seat 67. The punching head 63 is fixedly installed at the bottom of the lifting beam 72 through the punch seat 62. The bottom of the lifting beam 72 is connected to an L-shaped plate 73. The punch seat 62 is provided with an L-shaped groove and is hung on the L through the L-shaped groove. The front and rear positions of the punch seat 62 on the L-shaped plate 73 are adjustable. The lifting beam 72 can be moved up and down on the deviation correction seat 67 by sliding the slider on the vertical slide rail. The lifting beam 72 is driven by the punching cam 70 through the connecting rod 71. The punching cam 70 is installed on the output shaft end of the servo motor 61. The servo motor 61 is fixedly installed on the deviation correction seat 67. In this way, when the servo motor 61 is working, the connecting rod 71 can be driven by the rotation of the punching cam 70, and then the lifting beam 72 and the punching punch 63 can be driven up and down to achieve high-speed punching. An ultrasonic sensor 65 is provided on the feeding side of the puncher. The ultrasonic sensor 65 is fixedly installed on one side of the deviation correction seat 67. The ultrasonic sensor 65 senses the inner side of the film entering the puncher during operation. The output signal of the ultrasonic sensor 65 controls the deviation correction motor 66. When the deviation correction motor 66 is working, the guide screw nut structure drives the deviation correction seat 67 to slide left and right on the punching bracket 68. In this way, when punching, the ultrasonic sensor can sense the inner side of the film entering the puncher. If there is a deviation on the left or right side of the film, the correction motor will drive the correction seat and the entire puncher to move left or right to automatically correct the deviation and achieve accurate punching.

[0026] like Figure 6-7As shown, the upper and lower ironing mechanism 8 includes an upper copper knife 81 and a lower copper knife 82 which are electrically heated. The upper copper knife 81 and the lower copper knife 82 are relatively movable up and down. The upper copper knife 81 is installed on an upper crossbeam 83. The upper copper knife 81 is connected to the upper crossbeam 83 through an upper support 85. The upper crossbeam 83 is movable up and down and is driven by the rotation of a first cam 93. Both ends of the upper crossbeam 83 are connected to a lateral slide 88. The lateral slide 88 can be vertically slidably arranged on the inner side of a frame wall panel 87. The lower end of the lateral slide 88 extends to the lower position of the lower crossbeam 84 and is connected to the upper rod end of the first connecting rod 92. The lower rod end of the first connecting rod 92 The first sleeve ring 94 is connected, and the first sleeve ring 94 can be rotatably arranged on the outer circle of the first cam 93; the lower copper knife 82 is installed on the lower crossbeam 84, and the lower copper knife 82 is connected to the lower crossbeam 84 through the lower support 86. The lower crossbeam 84 is arranged to move up and down and is driven by the rotation of the second cam 96. The bottom of the lower crossbeam 84 is connected to the buffer cylinder 89, and the mounting seat 90 of the buffer cylinder can be vertically slidably arranged on the inner side of the frame wall plate 87. The mounting seat 90 of the buffer cylinder is connected to the upper rod end of the second connecting rod 91, and the lower rod end of the second connecting rod 91 is connected to the second sleeve ring 95, and the second sleeve ring 95 can be rotatably arranged on the outer circle of the second cam 96. The first cam 93 and the second cam 96 are installed on the same camshaft 98, and the camshaft 98 is driven by a servo motor 97. The upper support 85 and the lower support 86 are composed of their own upper plates, lower plates and vertical rods fixedly connected to the upper and lower plates, and the upper and lower plates are separated from each other to leave a heat insulation space.

[0027] The rotating collecting mechanism 19 includes a turntable and six collecting arms evenly distributed on the circumference of the turntable. The turntable and the collecting arms rotate counterclockwise under the drive of the turntable motor. The collecting arms are provided with suction holes on the arm surfaces along the rotation direction. The suction holes are connected to the vacuum system. When the collecting arms rotate counterclockwise, they pass through the finished bag supporting platform from the bottom to the top of the finished bag supporting platform and absorb the finished bags on the finished bag supporting platform and take them away and send them to the bag hanging needle group of the bag sorting and conveying mechanism 20; the bag sorting and conveying mechanism 20 includes a closed conveying chain and bag hanging needle groups equidistantly arranged on the closed conveying chain. The closed conveying chain is driven by a bag sorting servo motor to perform intermittent conveying action. When the cutting mechanism 10 cuts the conveyed bags individually, the finished bags will fall on the finished bag supporting platform. At this time, the collecting arm rotates counterclockwise and passes through the finished bag supporting platform from the bottom to the top, then absorbs the finished bags and takes them away and sends them to the bag hanging needle group of the bag sorting and conveying mechanism 20. When the finished bags stacked in the bag hanging needle group reach a certain number, the bag sorting servo motor drives the closed conveyor chain to perform intermittent conveying action, and finally the finished bags are stacked and sent out. The entire bag sorting action structure is very simple, which can just meet the high-speed bag making requirements of the bag making machine.

Claims

1. Multifunctional bag making machine with modular design, characterized by: It comprises a film feeding mechanism, a zipper feeding mechanism, a film zipper welding mechanism, a welding handle mechanism, a servo punching mechanism, an upper and lower ironing mechanism, a cutting mechanism, a rotary arm receiving mechanism and a bag sorting and conveying mechanism which are arranged in sequence; a film folding mechanism, a rear material pulling component and a folding bottom mechanism are arranged between the film feeding mechanism and the film zipper welding mechanism; a zipper pulling mechanism is arranged between the zipper feeding mechanism and the film zipper welding mechanism; a front material pulling component is arranged at the output end of the film zipper welding mechanism; a rear material pulling component is arranged at the feeding end of the welding handle mechanism; a film tension control mechanism is arranged between the front material pulling component and the rear material pulling component; a middle material pulling component is arranged between the welding handle mechanism and the servo punching mechanism; a front material pulling component is arranged between the upper and lower ironing mechanism and the cutting mechanism; the film zipper welding mechanism is provided with a first heat sealing assembly, a second heat sealing assembly, a cooling knife assembly and a pulling rubber roller assembly in sequence up and down along the film conveying path; the first heat sealing assembly comprises two first heat sealing knives which are arranged symmetrically on the left and right, and the two first heat sealing knives are arranged symmetrically on the left and right. The two heat sealing knives move relatively close to and away from each other, and are pushed by their respective first heat sealing knife cylinders. The second heat sealing assembly includes two second heat sealing knives that are symmetrically arranged on the left and right. The two second heat sealing knives move relatively close to and away from each other, and are pushed by their respective second heat sealing knife cylinders. A temperature detector is provided between the second heat sealing assembly and the cooling knife assembly, and the temperature detector is connected to the control center. During the welding operation, the control center adjusts the temperature of the heat sealing knife and the number of heat sealing knives used in real time according to the film pulling speed. The servo punching mechanism includes a puncher, which is composed of a punching punch and a bottom die. The bottom die is arranged below the punching punch. The bottom die is provided with a punching hole that is directly opposite to the punching punch up and down. The bottom die is fixedly installed on the deviation correction seat, and the punching punch is fixedly installed at the bottom of the lifting beam. The lifting beam is arranged on the deviation correction seat for upward and downward movement. The upward and downward movement of the lifting beam is driven by a punching cam, which is installed on the output shaft end of the punching servo motor, and the punching servo motor is installed on the deviation correction seat. The deviation correction seat slides left and right on a fixedly installed punching bracket.

2. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: An electrostatic dust collector is arranged near the middle material dragging component and the front material dragging component.

3. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: The cooling knife assembly comprises two cooling knives which are arranged symmetrically on the left and right. The two cooling knives move towards and away from each other and are pushed by their respective cooling knife cylinders. Circulating cooling water flows through the two cooling knives.

4. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: The bottom mold is provided with a lateral opening groove, and the lateral opening groove is used to limit the upper and lower positions of the film passing through the puncher during operation.

5. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: An ultrasonic sensor is provided on the feeding side of the hole puncher, and the ultrasonic sensor is installed on the correcting seat. The ultrasonic sensor senses the inner side of the film entering the hole puncher during operation, and the output signal of the ultrasonic sensor controls the correcting motor. When the correcting motor is working, it drives the correcting seat to slide left and right on the punching bracket.

6. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: The upper and lower ironing mechanism includes an upper copper knife and a lower copper knife which are electrically heated. The upper copper knife and the lower copper knife are arranged to move up and down relative to each other. The upper copper knife is installed on an upper crossbeam, and the upper crossbeam is arranged to move up and down and is driven by the rotation of a first cam. The lower copper knife is installed on a lower crossbeam, and the lower crossbeam is arranged to move up and down and is driven by the rotation of a second cam. The first cam and the second cam are installed on the same camshaft, and the camshaft is driven by an upper and lower ironing servo motor.

7. The multifunctional bag making machine of modular design as claimed in claim 6, characterized in that: The two ends of the upper cross beam are connected to lateral slides, and the lateral slides are vertically slidably arranged on the inner side of the frame wall panel. The lower end of the lateral slide extends to the lower position of the lower cross beam and is connected to the upper rod end of the first connecting rod. The lower rod end of the first connecting rod is connected to the first ring, and the first ring is rotatably arranged on the outer circle of the first cam; the bottom of the lower cross beam is connected to the buffer cylinder, and the mounting seat of the buffer cylinder is vertically slidably arranged on the inner side of the frame wall panel. The mounting seat of the buffer cylinder is connected to the upper rod end of the second connecting rod, and the lower rod end of the second connecting rod is connected to the second ring, and the second ring is rotatably arranged on the outer circle of the second cam.

8. The multifunctional bag making machine with modular design as claimed in claim 1, characterized in that: The rotary arm material collecting mechanism includes a turntable and a plurality of collecting arms evenly distributed on the circumference of the turntable. The turntable and the collecting arms rotate counterclockwise under the drive of the turntable motor. The collecting arms are provided with suction holes on the arm surfaces along the rotation direction. When the collecting arms rotate counterclockwise, they pass through the finished bag supporting platform from the bottom to the top of the finished bag supporting platform and absorb and take away the finished bags on the finished bag supporting platform and send them to the bag hanging needle group of the bag sorting and conveying mechanism.

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