A bag opening and bag expanding device for producing degradable packaging bags

Abstract

The present application relates to the technical field of packaging bag processing, and particularly relates to a bag opening and supporting device for degradable packaging bag production, which comprises a base, an automatic feeding mechanism is arranged on the top right side of the base, a heat sealing and cutting mechanism is arranged on the left side of the automatic feeding mechanism, a self-adaptive bag supporting mechanism is arranged on the left side of the heat sealing and cutting mechanism, and a discharging and transferring mechanism is arranged on the left side of the base, the automatic feeding mechanism comprises fixed plates which are fixedly connected on the right side of the top wall of the base in a symmetrical mode, and load rollers are rotatably arranged on the inner side of the fixed plates, the self-adaptive bag supporting mechanism comprises a first electromagnet, a magnetic supporting rod and a bag supporting sucker, the first electromagnet is arranged on the left side of the heat sealing and cutting mechanism, the magnetic supporting rod is arranged on the left side of the first electromagnet, and the bag supporting sucker is arranged on the left side of the magnetic supporting rod, the bag supporting groove is arranged on the left side of the bag supporting sucker, and the bag supporting groove is used for supporting the sealing strip of the packaging bag, the self-adaptive bag supporting mechanism is used for supporting the packaging bag which is formed by heat pressing and cutting, and the bag supporting sucker is used for supporting the sealing strip of the packaging bag, so that the effect of quickly opening and supporting the degradable packaging bag which is formed by heat pressing and cutting is achieved, and the packaging efficiency of the finished packaging bag during use is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging bag processing technical field, especially to a kind of degradable packaging bag production opening bag supporting device. BACKGROUND

[0002] Degradable packaging bag is light in quality, little pollution, widely used in soybean fiber packaging, wherein, packaging self-sealing bag is good in sealing, open with use, conducive to soybean fiber storage, in packaging self-sealing bag automatic production workshop, according to the production needs of different packaging self-sealing bag width specifications, the self-sealing bag is automatically heat-pressed and cut, so as to ensure the production efficiency of packaging bag.

[0003] In the existing packaging self-sealing bag production process, the seal bar of the degradable self-sealing packaging bag formed by heat pressing and cutting is mostly closed, and the seal bar of the packaging bag needs to be opened before the product is packaged, and then the target product is packaged, so the formed packaging bag has an opening process before use, which affects the packaging efficiency of the product and needs to be improved. SUMMARY

[0004] In view of the fact that the self-sealing packaging bag formed by heat sealing and cutting needs to be opened before use in the prior art, the present application provides a degradable packaging bag production opening bag supporting device, which solves the technical problem of low packaging efficiency.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a degradable packaging bag production opening bag supporting device, comprising a base, an automatic feeding mechanism is arranged on the top right side of the base, a heat sealing and cutting mechanism is arranged on the left side of the automatic feeding mechanism, a self-adaptive bag supporting mechanism is arranged on the left side of the heat sealing and cutting mechanism, and a discharging and transferring mechanism is arranged on the left side of the base.

[0006] The automatic feeding mechanism comprises a fixed plate fixedly connected to the right side of the top wall of the base, a load roller is rotatably installed on the inner side of the fixed plate, a packaging film is sleeved on the outer side of the load roller, a plurality of fixed frames are equidistantly fixedly connected to the front and rear side walls of the base, a feeding roller is rotatably installed in each fixed frame, a motor is arranged on the outer side of the outermost fixed frame, the output end of the motor is fixedly connected to the side wall of the feeding roller, and a limiting plate is symmetrically arranged on the left side of the feeding roller.

[0007] Preferably, the heat sealing and cutting mechanism comprises a connecting rod fixedly connected to the front and rear side walls of the base, a gas cylinder is fixedly connected to the top of the connecting rod, a pneumatic sliding block is slidably installed at the bottom of the gas cylinder, and a horizontal guide rail is fixedly connected between adjacent pneumatic sliding blocks.

[0008] The bottom of the air cylinder is fixedly provided with a sliding rod, a pneumatic sliding block is slidably sleeved on the sliding rod, the bottom wall of the pneumatic sliding block is fixedly connected with a reset spring, the reset spring is sleeved on the outer side of the sliding rod, the bottom wall of the pneumatic sliding block is fixedly connected with conductive tabs on the left and right sides, and a conductive seat is arranged below each conductive tab and fixedly connected to the base.

[0009] A cutting groove is formed in the top wall of the base directly below the transverse guide rail, a cutting knife is fixedly connected to the center of the bottom wall of the transverse guide rail, and a heat pressing strip is fixedly connected to the left and right sides of the bottom wall of the transverse guide rail, the heat pressing strips being symmetrically arranged on the left and right sides of the cutting knife.

[0010] Preferably, the self-adaptive bag supporting mechanism comprises a connecting arm fixedly connected to the front side wall of the base, drive sleeves are fixedly connected to the top and bottom of the connecting arm, an elliptical limiting frame is longitudinally and slidably arranged in the drive sleeve, inclined rods are fixedly connected to the two sides of the bottom of the elliptical limiting frame, a longitudinal rod is slidably arranged at the center of the bottom wall of the elliptical limiting frame, and bag supporting suction discs are fixedly connected to the bottom ends of the inclined rods and the longitudinal rod.

[0011] The self-adaptive bag supporting mechanism further comprises a first electromagnet fixedly connected to the inner center of the connecting arm, first springs are fixedly connected to the top and bottom of the first electromagnet, magnetic supporting rods are fixedly connected to the other ends of the first springs, the magnetic supporting rods extend through the drive sleeve, and the ends of the magnetic supporting rods are fixedly connected to the side walls of the elliptical limiting frame.

[0012] A flexible air bag is fixedly connected to the inside of the elliptical limiting frame, a second electromagnet is fixedly connected to the inner top of the flexible air bag, a second spring is fixedly connected to the bottom of the second electromagnet, and the bottom end of the second spring is fixedly connected to the longitudinal rod.

[0013] Preferably, a bag supporting groove is formed in the top of the base in the transverse direction, the bag supporting suction discs are arranged in the bag supporting groove, the elliptical side walls of the elliptical limiting frame are made of flexible material, and the first electromagnet and the second electromagnet are electrically connected with the conductive tabs and the conductive seats.

[0014] Preferably, the unloading and transferring mechanism comprises a drive seat fixedly connected to the left side wall of the base, a multi-axis mechanical arm is rotatably arranged at the top of the drive seat, an unloading suction disc is rotatably arranged at the bottom of the multi-axis mechanical arm, and a loading frame is fixedly connected to the rear side wall of the base.

[0015] By means of the above technical scheme, the present application provides an opening and supporting device for degradable packaging bag production, which has at least the following beneficial effects:

[0016] 1. The present invention uses an adaptive bag-opening mechanism to open the packaging bags formed by hot pressing one by one. At the same time, through the coordinated arrangement of the first electromagnet, the magnetic slide bar and the bag-opening suction cup, the bag-opening suction cups on both sides of the bag-opening groove are used to quickly open the sealing strip of the packaging bag, thereby achieving the effect of quickly opening and opening the degradable packaging bags formed by hot pressing, greatly improving the packaging efficiency of the finished packaging bags when they are used.

[0017] 2. The present invention automatically feeds the packaging bags through the automatic feeding mechanism, and at the same time, through the coordination between the loading roller, the motor and the feeding roller, it achieves the effect of continuously compacting and feeding the packaging bags along the transverse direction of the base. It has a high degree of automation, avoids wrinkles in the packaging bag transportation process, and improves the processing quality of the packaging bag.

[0018] 3. The present invention realizes heat sealing and cutting of transversely transported packaging bags through a heat sealing and cutting mechanism. At the same time, through the coordination of the cylinder, pneumatic slider, cutting knife and hot pressing strip, the cylinder is used to drive the transverse guide rail downward to realize automatic heat sealing and cutting of self-sealing packaging bags, thereby greatly improving the production efficiency of packaging bags.

[0019] 4. In the process of hot pressing and cutting the packaging bags through the heat sealing and cutting mechanism of the present invention, when the pneumatic slider runs to the bottom, it drives the conductive contact and the conductive seat to be energized, driving the first electromagnet inside the adaptive bag-opening mechanism to open, thereby achieving the effect of synchronously opening the packaging bags after heat sealing and cutting, further improving the production efficiency of the packaging bags.

[0020] 5. The present invention controls the cutting of packaging bags of different specifications by adjusting the interval between the two openings of the cylinder when the heat-sealing and cutting mechanism is working, thereby achieving the effect of rapid cutting and forming of packaging bags of various widths and specifications, and greatly improving the versatility of packaging bag production.

[0021] 6. The present invention controls the current flowing through the second electromagnet through the time difference between the two energization times when the cylinder is working, and has achieved adaptive expansion of packaging bags of different widths, greatly ensuring the heat sealing effect of the heat sealing area of ​​the ziplock bag sealing strip, avoiding the phenomenon of the sealing strip tearing due to excessive expansion of the packaging bag and the automatic closing of the sealing strip due to insufficient expansion, and greatly ensuring the stability of the packaging bag expansion and opening.

[0022] 7. The present invention realizes automatic transfer of the packaging bags after the bags are stretched through the unloading transfer mechanism. At the same time, through the coordinated setting between the multi-axis robotic arm, the unloading suction cup and the loading frame, the automatic transfer and collection of the packaging bags after the bags are stretched is achieved, further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are intended to provide further understanding of the present application, form a part of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0024] Figure 1 A perspective view of the stereoscopic structure of the present application;

[0025] Figure 2 A perspective view of the automatic feeding mechanism of the present application;

[0026] Figure 3 A perspective view of the heat sealing and cutting mechanism of the present application;

[0027] Figure 4 A side view of the heat sealing and cutting mechanism of the present application;

[0028] Figure 5 A perspective view of the self-adaptive bag supporting mechanism and the blanking and transferring mechanism of the present application;

[0029] Figure 6 A perspective view of the internal structure of the self-adaptive bag supporting mechanism of the present application;

[0030] Figure 7 A side view of the internal structure of the self-adaptive bag supporting mechanism of the present application;

[0031] Figure 8 A perspective view of the internal structure of the elastic air bag of the present application.

[0032] In the drawings: 1, base; 2, automatic feeding mechanism; 20, fixed plate; 21, load roller; 22, packaging film; 23, fixed frame; 24, motor; 25, feeding roller; 26, limiting plate; 27, bag supporting groove; 3, heat sealing and cutting mechanism; 30, connecting rod; 31, air cylinder; 32, pneumatic slide block; 33, transverse guide rail; 34, cutting groove; 35, slide rod; 36, return spring; 37, conductive contact; 38, conductive seat; 39, cutting knife; 310, hot pressing strip; 4, self-adaptive bag supporting mechanism; 40, connecting arm; 401, first electromagnet; 402, first spring; 403, magnetic supporting rod; 41, driving sleeve; 42, oval limiting frame; 43, oblique rod; 44, bag supporting suction cup; 45, longitudinal rod; 46, elastic air bag; 47, second electromagnet; 48, second spring; 5, blanking and transferring mechanism; 50, driving seat; 51, multi-axis mechanical arm; 52, blanking suction cup; 53, load frame. DETAILED DESCRIPTION

[0033] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0034] Embodiment one

[0035] Please refer to Figures 1-2 A bag opening and bag supporting device for degradable packaging bag production, comprising a base 1, an automatic feeding mechanism 2 is arranged on the top right side of the base 1, a heat sealing and cutting mechanism 3 is arranged on the left side of the automatic feeding mechanism 2, a self-adaptive bag supporting mechanism 4 is arranged on the left side of the heat sealing and cutting mechanism 3, and a discharging and transferring mechanism 5 is arranged on the left side of the base 1. In the production process of the packaging bag, the packaging bag is conveyed transversely along the base 1 by the automatic feeding mechanism 2, then the packaging bag is heat sealed and cut by the heat sealing and cutting mechanism 3, the packaging bag after cutting is opened and supported by the self-adaptive bag supporting mechanism 4, and the packaging bag after supporting is transferred and conveyed by the discharging and transferring mechanism 5. The automatic cutting and supporting processing of the packaging bag is realized in the whole process.

[0036] The automatic feeding mechanism 2 comprises fixed plates 20 which are symmetrically and fixedly connected to the right side of the top wall of the base 1, load rollers 21 which are rotatably installed on the inner side of the fixed plates 20, packaging films 22 which are sleeved on the outer side of the load rollers 21, a plurality of fixed frames 23 which are equidistantly and fixedly connected to the front and rear side walls of the base 1, feeding rollers 25 which are rotatably installed in the fixed frames 23, a motor 24 which is arranged on the outer side of the outermost fixed frame 23, and output ends of the motor 24 which are fixedly connected to the side wall of the feeding roller 25. Limiting plates 26 are symmetrically arranged on the left side of the feeding roller 25, and the limiting plates 26 are fixedly connected to the top wall of the base 1. The limiting plates 26 are used for limiting the transverse conveying of the packaging film 22. Before processing, the end of the packaging film 22 wound on the load roller 21 is inserted into the gap between the bottom wall of the feeding roller 25 and the base 1, then the motor 24 is started, the rotation of the motor 24 drives the rotation of the feeding roller 25, so as to realize the transverse conveying of the packaging film 22 wound on the load roller 21. Through the automatic feeding of the automatic feeding mechanism 2 and the cooperation of the load roller 21, the motor 24 and the feeding roller 25, the effect of continuously compacting and feeding the packaging film 22 transversely along the base 1 is realized. The degree of automation is high, the wrinkles in the conveying process of the packaging bag are avoided, and the processing quality of the packaging bag is improved.

[0037] Embodiment two

[0038] Please refer to Figures 3-4The embodiment is basically same as the embodiment one, and the embodiment is made on the basis of the embodiment one and has the same beneficial effects as the embodiment one.

[0039] The heat sealing and cutting mechanism 3 comprises connecting rods 30 fixedly connected to the front and rear sidewalls of the base 1, the top of each connecting rod 30 is fixedly connected with a cylinder 31, the bottom of each cylinder 31 is slidingly installed with a pneumatic slider 32, the adjacent pneumatic sliders 32 are fixedly connected with a transverse guide rail 33, the packaging film 22 is uniformly transported on the base 1 during the rotation and transverse conveying of the feeding roller 25, the rotation speed of the motor 24 is constant, so that the packaging film 22 is uniformly transported on the base 1, when the packaging film 22 needs to be heat sealed and cut, the cylinders 31 are opened to drive the transverse guide rail 33 to move downward, and the cutting knife 39, the cutting groove 34 and the hot pressing strip 310 are used to realize the heat sealing and cutting of the packaging film 22.

[0040] The bottom of each cylinder 31 is fixedly installed with a sliding rod 35, the pneumatic slider 32 is slidingly sleeved on the sliding rod 35, the bottom wall of the pneumatic slider 32 is fixedly connected with a return spring 36, the return spring 36 is sleeved on the outer side of the sliding rod 35, the bottom wall of the pneumatic slider 32 is fixedly connected with electrically conductive contact pieces 37 which are symmetrically arranged on the left and right sides, and electrically conductive seats 38 are arranged below the electrically conductive contact pieces 37, the electrically conductive seats 38 are fixedly connected to the base 1, when the cylinders 31 are opened, the pneumatic sliders 32 are driven to move upward and downward along the sliding rods 35, until the cutting knife 39 at the bottom of the transverse guide rail 33 cuts the packaging film 22, at the same time, the hot pressing strips 310 on the left and right sides simultaneously heat seal the two sides of the cutting area of the packaging film 22, so that the packaging bag is heat sealed and cut to form, and the cut packaging bag is located on the working position of the self-adaptive bag supporting mechanism 4, during the downward movement of the pneumatic slider 32, when the electrically conductive contact pieces 37 and the electrically conductive seats 38 are in contact, the first electromagnet 401 in the self-adaptive bag supporting mechanism 4 is energized, and the cutting and forming packaging bag is simultaneously opened and supported.

[0041] As a preferred technical solution of the embodiment, the cutting groove 34 is arranged below the transverse guide rail 33 and on the top wall of the base 1, the cutting knife 39 is fixedly connected to the center of the bottom wall of the transverse guide rail 33, and the hot pressing strips 310 are fixedly connected to the left and right sides of the bottom wall of the transverse guide rail 33, the hot pressing strips 310 are symmetrically arranged on the left and right sides of the cutting knife 39, which ensures that the hot pressing strips 310 heat seal and form the two sides of the cutting area of the packaging film 22, and the packaging film 22 is made into a packaging bag, the cutting knife 39 and the cutting groove 34 are arranged on the same vertical straight line, which ensures that the transverse guide rail 33 cuts the packaging film 22 during the longitudinal downward movement of the pneumatic slider 32, the heat sealing and cutting of the transversely conveyed packaging film 22 is realized through the heat sealing and cutting mechanism 3, and through the cooperation of the cylinders 31, the pneumatic sliders 32, the cutting knife 39 and the hot pressing strips 310, the downward movement of the transverse guide rail 33 is realized through the cylinders 31, the automatic heat sealing and cutting of the self-sealing packaging bag is realized, and the production efficiency of the packaging bag is greatly improved.

[0042] Example Three

[0043] Please refer to Figures 5-8 The present example is basically the same as example one, the present example is made on the basis of example one, and has the same beneficial effects as example one. For the same parts, please refer to each other. Here, it is not necessary to be described in detail.

[0044] The adaptive bag supporting mechanism 4 comprises a connecting arm 40 fixedly connected to the front side wall of the base 1, the top and bottom of the connecting arm 40 are fixedly connected with driving sleeves 41, the inside of the driving sleeve 41 is longitudinally slidably installed with an elliptical limiting frame 42, two sides of the bottom of the elliptical limiting frame 42 are symmetrically fixedly connected with inclined rods 43, the bottom wall center of the elliptical limiting frame 42 is slidably installed with a longitudinal rod 45, the longitudinal rod 45 is made of magnetic material, the bottom end of the inclined rod 43 and the longitudinal rod 45 is fixedly connected with a bag supporting suction cup 44, the packaging bag cut and formed by the heat sealing and cutting mechanism 3 is located in the inside of the adaptive bag supporting mechanism 4, during the downward movement of the pneumatic slide block 32 and the transverse guide rail 33, the conductive contact 37 and the conductive seat 38 are electrified, driving the first electromagnet 401 to be electrified, under the adsorption of magnetic force, the elliptical limiting frame 42 is close to each other, and then the bottom longitudinal rod 45 and the inclined rod 43 are close to each other, at this time, the bag supporting suction cup 44 is opened, and the two sides of the packaging bag are adsorbed under the action of suction force, during the heat pressing and cutting of the packaging bag by the heat sealing and cutting mechanism 3, the pneumatic slide block 32 is driven to the bottom, the conductive contact 37 and the conductive seat 38 are electrified, driving the first electromagnet 401 in the adaptive bag supporting mechanism 4 to be opened, and then the synchronous opening effect of the heat sealing and cutting packaging bag is achieved, further improving the production efficiency of the packaging bag.

[0045] As the preferred technical solution of the embodiment, the self-adaptive bag supporting mechanism 4 further comprises a first electromagnet 401 fixedly connected to the inside center of the connecting arm 40, the top of the first electromagnet 401 is fixedly connected with a first spring 402, the other end of the first spring 402 is fixedly connected with a magnetic supporting rod 403, the magnetic supporting rod 403 extends through the inside of the driving sleeve 41, and the end of the magnetic supporting rod 403 is fixedly connected to the side wall of the oval limiting frame 42. After the cutting is completed, under the restoring force of the reset spring 36, the conductive contact 37 moves upward and is out of contact with the conductive seat 38. At this time, the electromagnetic force of the first electromagnet 401 disappears, and under the restoring force of the first spring 402 on both sides, the bag supporting suction cups 44 move away from each other, and the packaging bag is supported open. After the bag supporting is completed, the bag supporting suction cups 44 are closed, and the packaging bag supported by the self-adaptive bag supporting mechanism 4 is placed on the corresponding position of the base 1. Through the self-adaptive bag supporting mechanism 4, the packaging bag cut and formed by hot pressing is supported open one by one. Through the cooperation of the first electromagnet 401, the magnetic supporting rod 403 and the bag supporting suction cups 44, the bag supporting suction cups 44 on both sides of the bag supporting groove 27 realize rapid bag supporting of the sealing strip of the packaging bag, so that the effect of rapid bag opening and supporting of the packaging bag cut and formed by hot pressing is achieved, and the packaging efficiency of the finished packaging bag during use is greatly improved.

[0046] As the preferred technical solution of the embodiment, the inside of the oval limiting frame 42 is fixedly connected with an elastic air bag 46, the inner top of the elastic air bag 46 is fixedly connected with a second electromagnet 47, the bottom of the second electromagnet 47 is fixedly connected with a second spring 48, and the bottom end of the second spring 48 is fixedly connected to the longitudinal rod 45. During the process of supporting the packaging bag away from each other by the bag supporting suction cups 44, the second electromagnet 47 is synchronously turned on, the second spring 48 is driven to compress, the longitudinal rod 45 at the bottom of the top of the packaging bag moves away from the packaging bag, and the opening amplitude of the center area of the packaging bag is increased. Due to the center of the oval limiting frame 42 being narrow and the two sides being flat, the packaging bag is supported and opened with a large opening in the center and a small opening at the edge.

[0047] Embodiment Four

[0048] Please refer to Figure 4 and Figure 7 The embodiment is basically the same as the first embodiment, and is made on the basis of the first embodiment and has the same beneficial effects as the first embodiment. For the same parts, please refer to each other, and here is not described in detail.

[0049] The top of the base 1 is provided with a bag supporting groove 27 in the transverse direction, which is located near the side of the packaging film 22 with the sealing strip. The bag supporting suction cup 44 is located inside the bag supporting groove 27. The oval side wall of the oval limiting frame 42 is made of flexible material, which ensures that the first electromagnet 401 drives the oval limiting frame 42 to move downward after being turned on, and the oblique rod 43 and the longitudinal rod 45 at the bottom of the oval limiting frame 42 slide in the longitudinal direction. The setting of the oval frame body ensures that the sliding amplitude of the central longitudinal rod 45 is large, and the sliding amplitude of the two oblique rods 43 is small. The first electromagnet 401 and the second electromagnet 47 of the oval limiting frame 42 are electrically connected with the conductive contact piece 37 and the conductive seat 38. During the downward cutting process of the transverse guide rail 33, when the conductive contact piece 37 and the conductive seat 38 are in contact, the first electromagnet 401 inside the self-adaptive bag supporting mechanism 4 is turned on synchronously, thereby realizing the synchronous bag supporting of the cut packaging bag during the upward movement after the downward cutting. With the continuous conveying of the packaging bag, the cylinder 31 intermittently drives the transverse guide rail 33 to move downward. Here, because the rotating speed of the motor 24 is constant, the conveying speed of the packaging bag is constant. When it is necessary to adjust the cutting width of the packaging bag, it is only necessary to change the time interval of the downward movement of the transverse guide rail 33 driven by the cylinder 31 each time. When the time interval is long, the cut packaging bag is wide. When the interval is short, the cut packaging bag is narrow. In particular, the current flowing through the second electromagnet 47 is kept linearly synchronous with the time interval of the downward movement of the cylinder 31. When the time interval is longer, the cut packaging bag is wider, and the current flowing through the second electromagnet 47 is larger. At this time, the electromagnetic adsorption force of the second electromagnet 47 is larger, and the sliding amplitude of the longitudinal rod 45 is larger. At this time, the spacing of the bag supporting suction cup 44 located in the center area of the packaging bag is larger, which corresponds to the wider packaging bag supporting and opening. This avoids the phenomenon that the sealing strip is automatically attracted due to the small opening amplitude. Similarly, when the time interval is shorter, the cut packaging bag is narrower, and the current flowing through the second electromagnet 47 is smaller. At this time, the magnetic adsorption force of the second electromagnet 47 is smaller, and the longitudinal rod 45 slides with a smaller amplitude. At this time, the spacing of the bag supporting suction cup 44 located in the center area of the packaging bag is smaller, which corresponds to the narrower packaging bag supporting and opening. This avoids the phenomenon that the sealing strip is torn due to the large opening amplitude. By controlling the current flowing through the second electromagnet 47 through the time difference of the two power-on processes of the cylinder 31, the self-adaptive opening of the packaging bag of different widths is realized, which greatly guarantees the heat sealing effect of the heat sealing area of the self-sealing bag sealing strip, avoids the tearing of the sealing strip due to the large opening amplitude of the packaging bag and the automatic attraction of the sealing strip due to the small opening amplitude, and greatly guarantees the stability of the packaging bag supporting and opening.

[0050] Example five

[0051] Please refer to Figure 5 This embodiment is basically the same as embodiment one. This embodiment is made on the basis of embodiment one and has the same beneficial effects as embodiment one. The same parts can be referred to for details.

[0052] The blanking and transferring mechanism 5 comprises a driving seat 50 fixedly connected to the left side wall of the base 1, a multi-axis mechanical arm 51 rotatably installed on the top of the driving seat 50, and a blanking suction disc 52 rotatably installed on the bottom of the multi-axis mechanical arm 51; a load frame 53 is fixedly connected to the rear side wall of the base 1, and the packaging bag after bag opening and bag supporting falls on the base 1; at this time, the bag opening driving seat 50 drives the blanking suction disc 52 to adsorb the packaging bag, and then the multi-axis mechanical arm 51 rotates along the driving seat 50 to transfer the packaging bag to the inside of the load frame 53, so that the automatic transfer of the packaging bag after bag supporting is realized through the blanking and transferring mechanism 5, and the automatic transfer and collection of the packaging bag after bag supporting are realized through the cooperation between the multi-axis mechanical arm 51, the blanking suction disc 52 and the load frame 53, and the processing efficiency is further improved.

[0053] The control mode of the present application is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, the power supply is also a common knowledge in the art, and the present application is mainly used to protect mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail.

[0054] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0055] Each of the embodiments in the present specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between each embodiment can be referred to each other. For the above embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the part of the method embodiment.

[0056] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bag opening and supporting device for producing biodegradable packaging bags, comprising a base (1), characterized in that: An automatic feeding mechanism (2) is provided on the right side of the top of the base (1), a heat sealing and cutting mechanism (3) is provided on the left side of the automatic feeding mechanism (2), an adaptive bag-supporting mechanism (4) is provided on the left side of the heat sealing and cutting mechanism (3), and a material unloading and transfer mechanism (5) is provided on the left side of the base (1); The automatic feeding mechanism (2) includes a fixed plate (20) symmetrically fixedly connected to the right side of the top wall of the base (1), a loading roller (21) is rotatably installed on the inner side of the fixed plate (20), and a packaging film (22) is sleeved on the outer side of the loading roller (21), and a plurality of fixed frames (23) are equidistantly fixedly connected to the front and rear side walls of the base (1), and a feeding roller (25) is rotatably installed inside each of the fixed frames (23), and a motor (24) is provided on the outer side of the outermost fixed frame (23), and the output end of the motor (24) is fixedly connected to the side wall of the feeding roller (25), and a limiting plate (26) is symmetrically provided on the left side of the feeding roller (25), and the limiting plates (26) are all fixedly connected to the top wall of the base (1); The adaptive bag-supporting mechanism (4) comprises a connecting arm (40) fixedly connected to the front side wall of the base (1), the top and bottom of the connecting arm (40) are fixedly connected to a driving sleeve (41), an elliptical limit frame (42) is slidably mounted inside the driving sleeve (41) along the longitudinal direction, oblique rods (43) are symmetrically fixedly connected to the two sides of the bottom of the elliptical limit frame (42), a longitudinal rod (45) is slidably mounted at the center of the bottom wall of the elliptical limit frame (42), the longitudinal rod (45) is set to a magnetic material, and the bottom ends of the oblique rod (43) and the longitudinal rod (45) are fixedly connected to a bag-supporting suction cup (44); The adaptive bag-supporting mechanism (4) further comprises a first electromagnet (401) fixedly connected to the inner center of the connecting arm (40), the top and bottom of the first electromagnet (401) are fixedly connected to a first spring (402), the other end of the first spring (402) is fixedly connected to a magnetic support rod (403), the magnetic support rod (403) extends through the interior of the driving sleeve (41), and the end of the magnetic support rod (403) is fixedly connected to the side wall of the elliptical limit frame (42); The inside of the elliptical limiting frame (42) is fixedly connected to an elastic airbag (46), the inner top of the elastic airbag (46) is fixedly connected to a second electromagnet (47), the bottom of the second electromagnet (47) is fixedly connected to a second spring (48), and the bottom end of the second spring (48) is fixedly connected to the longitudinal rod (45).

2. The bag opening and holding device for producing biodegradable packaging bags according to claim 1, characterized in that: The heat-sealing and cutting mechanism (3) comprises a connecting rod (30) fixedly connected to the front and rear side walls of the base (1); the top of the connecting rod (30) is fixedly connected to a cylinder (31); the bottom of the cylinder (31) is slidably mounted with a pneumatic slider (32); and a transverse guide rail (33) is fixedly connected between adjacent pneumatic sliders (32).

3. The bag opening and supporting device for producing biodegradable packaging bags according to claim 2, characterized in that: A slide bar (35) is fixedly mounted on the bottom of the cylinder (31), and the pneumatic slider (32) is slidably sleeved on the slide bar (35). A reset spring (36) is fixedly connected to the bottom wall of the pneumatic slider (32), and the reset spring (36) is sleeved on the outside of the slide bar (35). Conductive contacts (37) are symmetrically fixedly connected to the left and right sides of the bottom wall of the pneumatic slider (32). A conductive seat (38) is provided below each of the conductive contacts (37), and the conductive seat (38) is fixedly connected to the base (1).

4. The bag opening and holding device for producing biodegradable packaging bags according to claim 2, characterized in that: A cutting groove (34) is provided on the top wall of the base (1) and directly below the transverse guide rail (33). A cutting knife (39) is fixedly connected to the center of the bottom wall of the transverse guide rail (33). Hot pressing strips (310) are fixedly connected to the left and right sides of the bottom wall of the transverse guide rail (33). The hot pressing strips (310) are symmetrically arranged on both sides of the cutting knife (39). The cutting knife (39) and the cutting groove (34) are located on a straight line in the same vertical direction.

5. The bag opening and supporting device for producing biodegradable packaging bags according to claim 3, characterized in that: A bag-supporting groove (27) is provided on the top of the base (1) in a transverse direction. The bag-supporting suction cup (44) is located inside the bag-supporting groove (27). The elliptical side wall of the elliptical limiting frame (42) is configured to be made of a flexible material. The first electromagnet (401) and the second electromagnet (47) are both electrically connected to the conductive contact piece (37) and the conductive seat (38).

6. The bag opening and supporting device for producing biodegradable packaging bags according to claim 1, characterized in that: The material unloading and transfer mechanism (5) comprises a driving seat (50) fixedly connected to the left side wall of the base (1), a multi-axis mechanical arm (51) is rotatably mounted on the top of the driving seat (50), a material unloading suction cup (52) is rotatably mounted on the bottom of the multi-axis mechanical arm (51), and a loading frame (53) is fixedly connected to the rear side wall of the base (1).

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